Business: Eating and Finagle A Bagel Essay

1. How has the business cycle affected Finagle A Bagel? * The business cycle has affected the Finagle A Bagel in a positive way. I say this because the business is spreading and opening up more restaurants, so the business cycle has had a successful impact on the business even though running the business is nonstop. 2. What is Finagle A Bagel doing to differentiate itself from competitors that want a share of consumers’ dining dollars? * The Finagle A Bagel restaurant uses high quality, fresh products, courteous and competent employees, clean, attractive and inviting restaurants to differentiate themselves from competitors. 3. Why would Finagle A Bagel donate bagels to local charities rather than give them away to customers or employees? * The Finagle A Bagel would donate bagels to local charities due to the fact of it raising awareness of the businesses name in the community and surrounding areas. By doing this, it will increase peoples interests to eat at the restaurant due to the good they served in the community. 4. If you wanted to open a bagel restaurant in Hong Kong, would you license the Finagle A Bagel brand? Why or why not? * Yes, I would open a business in Hong Kong and license the Finagle A Bagel brand. I would do this because it is a very popular business that has a good name out for them. It would be a great opportunity to spread the greatness of this business. If I opened a business in Hong Kong and licensed the Finagle A bagel brand, it would bring many opportunities into the area such as donated unused bagels in this area of the world.

Microbiology and Unknown Bacteria Lab

Unknown Bacteria Lab Report Introduction The purpose to this lab was to identify an unknown bacteria from a mixed culture provided to us by our instructor. This study was done by applying all of the methods that have been instructed on thus far in microbiology laboratory class. Each test performed, provided us with some key information about the unknown organism in question and how the bacteria function. Over a two week period, eight prepared types of test media were provided to identify the assigned unknown mixed cultures. Not all of these tests were performed on every culture, as some were used only for gram positive or gram negative bacteria. The tests performed and what constituted a positive or negative test are as follows: Lab day 1; today in lab we obtained the unknown mixed culture â€Å"041†and one brain-heart infusion agar (BHIA). The first step was the preparation of the medium, the bottom of the BHIA dish was labeled with the bacterium number, initials, and section; then divided into four quadrants. The second step, we used the septic technique to transfer a small amount of culture with a flame-sterilized inoculating loop to the first quadrant, flamed and cooled the loop again then transferred a small amount of the culture from the first quadrant to the second using the quadrant streaking method as illustrated on page 18 of the lab manual, repeating this process until all four quadrants were properly streaked. Lab day 2; we collected our BHIA medium and began by identifying the morphology and cell-to cell arrangements of the colonies. Two different colonies were observed, the first colony was yellow in color and larger in size and the white colored colony was slightly smaller in size. As instructed, each colony was prepared for gram staining, one slide for the large yellow colony and one for the smaller white colony. After properly gram staining the slides as directed in chapter six of the lab manual, the smears were examined under†¦

Anatomy and physiology Essay Example | Topics and Well Written Essays - 250 words - 1

Anatomy and physiology - Essay Example From here lateral lemniscuses column (3rd order neurons) go to the inferior colliculi and superior colliculi that also receives visual impulse and acts as an integration center to carry impulse to the primary auditory cortex of the CNS in the temporal lobe at Brodmann area 41 and 42. The visual pathway was carried from the eyes to the optic nerve to the visual cortex. The afferent auditory neurons from the organ of corti (inner ear) and auditory cortex involves many synapses which are in the brain stem and medial geniculate body of thalamus. The brain stem causes the input for arousal and alertness. The thalamus sorts and relays signals upwards to generate the action in the individual (Purvez, 2012) (Janmey2007).To elicit the visual response signal transduction occurred in the rod cells to convert rhopodpsin into metarhodopsin which activated trasducin. Transducin blocked the sodium ions entry into the rods causing hyperpolarization which caused liberation of inhibitory neurotransmitter release from rods. Thus the inhibition on the bipolar cells was lifted and they got stimulated to release glutamate. Glutamate acted on the ganglion cells and stimulated them that lead to activity in the optic nerve (1st order neurons). The optic nerve is the IInd Cranial nerve a nd criss -cross at the optic chiasm and reaches the lateral geniculate nucleus from where impulse go to the primary visual cortex which is the Brodmann Area 17, 18 and 19 through the optic radiations( 2nd order neurons) Further as the individual was under stress the hypothalamic locus ceruleus system got activated to release nor epinephrine that was responsible for flight or fight response (getting into action) (Purvez, 2012) (Janmey2007). The reaction starts in the amygdala which stimulates hypothalamus, which cause release of ACTH from pituitary on one hand and stimulates

Recent Trends Of Staycation In Europe Essay Example | Topics and Well Written Essays - 2500 words - 1

Recent Trends Of Staycation In Europe - Essay Example The understanding of vacation is to rest or have a break from our daily routines. It is usually that we opt for going to someplace which is relaxing, which makes us stress-free, which regenerates energy in us so that we can resume working enthusiastically with no obstacles after we are back. It actually means to rest, keeping aside all tensions. This is what we think when going for a vacation but in a staycation, we opt for staying back home and spend time at home. It means that we are trying to find out some ways to spend the vacation at home as we could do if we were to go out somewhere. Here it means people find out ways of relieving stress being at home and make different arrangements for spending their holidays (About.com). People here have rather found out many new, different, innovative ideas about spending their holidays and having good leisure time. Some put off their mobile phones, some keep their computers shut, some opt for gaming, some party around, and many more things. People arrange friendly meetings, plan for dinner every weekend and some relax by reading books or listening to music at home. People also do creative works like painting, crafting etc. People in the UK are more influenced with a staycation. Many cities here started realizing that there can be a number of things done to spend the holidays whilst staying back home. People came up with many ideas and literally enjoyed them. It was not only people but also different clubs and restaurants that came up with many ideas to relax and amuse people. So there was a study done which showed amazing results that people were responding well to these ideas (Carey 2008). One thing that is a plus point here, that staying back at home for holidays reduces one’s workload of planning which we would have done if we're to go out for holidays. This not only reduces tension but is also a good money-saving policy.

Current state of the US economy Essay Example | Topics and Well Written Essays - 500 words

Current state of the US economy - Essay Example The world always closely observes the political and economical spheres of the US. Undoubtedly, the waves in the US economy are reflected throughout the world economy. But the global recession which marked its beginning in December 2007 was a huge setback to their undisputed leadership in the world economy. US economy was deplorably affected by the global recession of 2008. The subprime mortgage crisis was the sole cause of this recession. A huge fall in housing related assets resulted in a global financial crisis. Oil and food prices went up like anything. This eventually went to the collapse of a number of financial enterprises like Lehman Brothers, Bear Stearns, Freddie Mac, Fannie Mae and AIG etc. Automobile industry was also badly struck. It was a period of scrambled economic activity and negative expansion in GDP. The aftermaths of the late 2000s recession brought about overwhelming downfall in almost all phases of the economy. Contraction of GDP began in the third quarter of 2008 and was contracting rapidly by early 2009. Capital investment declined to the lowest rate in 50 years. As a result, the US had to face political instability as well. Decline in consumer credit, real estate bubbles, personal bankruptcies etc put the US economy into turmoil during this period. The GDP decline was about 5.1%. The US government announced a $700 billion bank bailout and $787 billion fiscal stimulus package to tackle the situation. The US was also struck by the draining of capital investment to developing countries like India and China which were not deeply affected by this recession. Government measures could not yield many results initially, but the economy started to regain its stability gradually, though in a slow pace. A poll by Reuters says that more than 50% of the Americans think that US is still in recession (Reuters polls). But according to official data of Bureau of Labour Statistics, a modest recovery is taking

From relative isolation to international role Essay

From relative isolation to international role - Essay Example The term ‘Imperialism’ is normally used when a nation enters into another geographical territory and captures its governance, with the intention to dominate it and also to tap from it. The late 19th – early 20th century was characterized by the spread of imperialism in the world. The US incorporated imperialism in its foreign policies to expand its political and economic influences. They did that through its involvement in the World Wars and also through other initiatives in the first half of the 20th century. This wish of US to play a prominent international role continued primarily after 1950’s, with its confrontation with Soviet Union through Cold War, Cuban Missile crisis, Vietnam War, Afghan War and with its involvement in the Middle-East, etc, etc. Importantly because of those actions, its role in the international affairs got strengthened and so US continues to play a major International role. Naturally, in such a situation the countries against whom those imperialistic policies were followed were affected and importantly even the American citizens were also affected because of US’ international role. The wish to expand the borders through imperialism rose in the minds of the US mainly to keep the country in top ranks. It all started with its indirect confrontation with Spain in foreign territories like Philippines in the late part of 19th century. That is, with many European countries particularly Britain, Spain, Netherlands, France, etc., expanding their influence throughout the world through their imperialist policies, America not to be left behind started exhibiting imperialistic policies to garner many territories. However, America did not engage in any confrontation with imperialistic mindset against the British, but they did engage against Spain. The Spanish–American War happened mainly because of American involvement in the Cuban War of Independence, and

Canterbury Tale (The Wife of Bath) Essay Example | Topics and Well Written Essays - 1000 words

Canterbury Tale (The Wife of Bath) - Essay Example Medieval social standards from which that dark reality consisted were the reason of much injustice, horrible crimes, slavery, massive misery and ugly existence even in the most progressive geographical regions. Among those oppressed part of society were also women who served to men almost as slaves and only sometimes would have been given a possibility to appear equal or even stronger by absorbing money and power. The individual experience of the Chaucer’s tale main heroine and narrator allows to make an attempt to find how virtually and naturally Alison serves as an anchor to the unique woman’s progressive thinking which shows displeasure with the reality of relationship between sexes. Among the main themes of the tale are woman’s dominance and submissive role of the man as well as declaring and stating equality between men and women. Dark Ages are not by accident called so. It was a rough time due to the total and grand chaos on the territory of the modern Europe. Following two great events – rise of the Islam religion and decline of the Western Roman Empire under the barbarian urge Europe suffered a great and total transformation on all the levels. Therefore rational thought and antique traditions of economic and political control remained lost until the early Renaissance which is exactly the times of Chaucer who can be called English version of Boccaccio both of whom are main authors of the main written documents of the early Renaissance . In the tale the author points out that chronologically it takes place in the times of King Arthur therefore it might be somewhere between 5th and 8th centuries while Islam appeared in the 6th. . Under the catast rophic eastern pressure European kingdoms created by such legendary and perhaps even historically mythological and cult icons like Arthur, William the Conqueror or Carl the Great with all their image honored war and battleship as the most sacred, holy and important crafts therefore

DWI (The Legal and Ethical Environment of Business) Essay

DWI (The Legal and Ethical Environment of Business) - Essay Example The telecom service providers(1) would have been able to collect more money and reduce their losses if it would have been possible for them to know that which customer would pay the bills and which customer is going to ditch them. Therefore one of the basic needs of risk management is to study the attitude of the customers. Once the company knows as to how a customer behaves with his billing issue, it would be very clear as to how he would behave further. It has been observed that the telecom providers who use transaction -based risk management are able to focus their attention on the riskiest accounts thus assigning the appropriate treatment to all the calls that is required. An advanced risk management technique has been devised which includes the following features: There should be an analysis of the complete set of data about the customer, the billing and the behavioral data. This will include all details about the calls and also the payment history and the customer service interactions. As regarding the private and public law implications in this situation, it is advisable that first both the terms should be made very clear. The private law is that part of the system of law which includes in it the relationship between the individuals only like the law of contract or tort etc.

Career Plan Analysis Paper Assignment Example | Topics and Well Written Essays - 500 words

Career Plan Analysis Paper - Assignment Example This management course has provided me with the required skills in business administration to help sharpen my management skills. The main areas of weakness which I have is hand-on problems and their solutions. The management skills gained within the course will be able to provide me with the necessary skills to improve my performance in realist occupations. Despite my lack of interest in this field, it is a critical part of what I shall be doing in my career. As a result of this, the course plays a fundamental role in enhancing my management skills. This will enable me to overcome the weakness in the capability to undertake practical activities which might be necessary in conducting the business. The operation of my business will require utilisation of different skills in enhancing the capacity to undertake the activities. While the course will enable me to improve on my weaknesses, it also provides me with a capacity to undertake a self-analysis in seeking to identify my strengths within my career plan. Since I have been able to determine my areas of strength, my focus when undertaking the course will be on understanding the various elements of my weaker areas. I would be able to put more effort in overcoming the impediments which limit my capacity to perform different activities related to my career. The course will enable me to determine my interests in determining areas which requires improvement for a better

Diversity in instructional methods toward meaningful learning Essay Example for Free

Diversity in instructional methods toward meaningful learning Essay Abstract There is diversity in instructional methods that teachers can use to bring about meaningful learning. This paper discusses five of them; namely integrated inquiry approach, 5-model of inquiry, the jig-sawing approach, role playing and WebQuest. These instructional methods are learner centered methods that consider prior knowledge, attitude and skills and promote development of new knowledge and relate them to a variety of contexts. All of them also deal with real-life situations that essentially develop interpersonal relationships, problem-solving skills and content-knowledge among others. The teachers’ tasks are to plan and carry out efficiently the instructional designs to have meaningful learning among diverse learners, instructional methods and learning environments. Diversity in Instructional Methods Toward Meaningful Learning Diversity is an essential ingredient of success of all ventures in life including education. There are different kinds of learners as there are teachers, instructional methods and learning environments; but there is only one goal in education and this is for an effective and meaningful learning. Teachers should set environments for students so they could think critically and independently and relate new knowledge learned with a variety of contexts for meaningful learning. It is the task of the teachers to match the learners, the learning environments, the knowledge to be learned and the instructional methods. Learning meaningfully means that learners relate new knowledge to what they already know. Meaningful learning is non-arbitrary, non-verbatim, substantive deliberate effort to link new knowledge with higher order concepts in cognitive structures. It is a learning related to experiences with events or objects and affective commitment to relate new knowledge with prior learning. The diverse instructional designs towards meaningful learning should identify outcomes, guide the development of instruction content and establish its effectiveness. Efforts to consider meaningful learning in the different stages of instructional design are essential. Gagne et al. (1992) identified the different stages of instructional designs as: defining instructional goals; conducting instructional analysis; identifying entry behaviours and learner characteristics; developing performance objectives; selecting an instructional method; assembling instructional materials and planning formative and summative evaluations. He and his colleagues further cited that current educational theory and researches support the use of instructional methods that make students active learners. Among the diverse instructional methods available to teachers to explore and use, the commonly utilized approach towards construction of new knowledge meaningfully are the problem –based learning and inquiry approach, cooperative learning, and technology strategies. Each of these methods has its own advantages and disadvantages, but when used effectively can maximize learning. Problem-Based and Inquiry Approach Students in the problem-based and learning inquiry approach engage in meaningful learning through being actively involved in their own learning and reconstructing these based on their experiences. They further participate in active investigation, more of integrating knowledge rather than separating them so that deep understanding develop from acquisition of new facts. In this method, students are given relevant problems by teachers which inquiry must be done. The general steps in this inquiry approach are: identifying the problems, gathering of data, organizing the data in attempt to analyse the problems and analyses of the strategies to use to solve the problems. Integrated Inquiry In the Integrated Inquiry planning process, a model of inquiry approach developed by K. Murdoch, sequences of activities and experiences are developed to build on and challenge student perceptions. These sequences begin with students’ prior knowledge and experiences and move through deliberate processes wherein that knowledge is extended, challenged and refined. Students have their own prior experiences that they bring to their classes and teachers should be aware of how to address this situation. Activities and learning experiences in this model are grouped as: tuning on, finding out, sorting out, going further, making conclusions and taking actions (Murdoch, 1999). Furthermore, planning for assessment is a very important element of planning for Integrated Inquiry. Murdoch (1999) highlights the need for the collection and analysis of information about what and the how students have learned. The assessment in the Integrated Inquiry model is to determine how to improve student learning as these new information help teachers modify their plans of work to suit the needs of the learners. Students’ involvement in planning for assessment as in selecting responses to particular learning experiences and designing demonstrations of understanding are highly encouraged. Therefore, teachers are also tasked to identify and design learning experiences that will provide information for assessment purposes. The strengths of this model are focussed on assessment of learning in context and encouraging a variety of demonstrations of understanding based on the learning experiences that students undertake. Learners that may benefit most from this Integrated Inquiry Approach are those capable of setting goals in their own learning and significantly contribute in determining how assessment could be effectively done. 5-E Model In the book â€Å"Activities for Teaching Science as Inquiry† by Carin, Bass Contant (2005) many laboratory investigations were cited as inquiry approach to learning. They focused on the 5-E Instructional Model with the five main components identified as Engagement, Exploration, Explanation, Elaboration and Evaluation. Each of these components is learner-centred. This investigatory method maybe time and resource consuming but it allows the learners to develop critical thinking and problem solving skills experientially. The use of this method is not limited to teaching sciences, which are considered to be not very easy subjects. This experiential learning brings more opportunities for learners to bring forth better understanding and longer retention of knowledge learned. Cooperative Learning Cooperative learning is an instructional method that takes place in a small group of learners of different levels of ability and in environments of responsibility not only for their own understanding of the subject but also for his co-learners. It brings more meaning to learning because it provides shared cognitive sets of information between students, motivating them to learn the materials, ensuring that they construct their own knowledge, providing formative feedback, developing social and group skills necessary for success outside the classroom. Cooperative leaning promotes learning and academic achievement, increases retention and satisfaction with their learning experiences among students, helps develop skills in oral communication, social skills, promotes student self-esteem and fosters mutual responsibility. Although this method helps students learn to be more patient, less critical and more compassionate, some students may find difficulty with this method. Students who work alone find difficulty in sharing answers while aggressive students will tend to take over and brighter students to act superior to the rest. Teachers who will employ cooperative should prepare their students how to work in groups for this method to be successful. Jig Sawing Approach The â€Å"Jig Sawing† Approach is a cooperative learning strategy wherein students becomes an â€Å"expert† in a particular area, then shares his or her learning knowledge with other members of the group that eventually all members of the group learn the concepts. In the Modified Jigsaw, the class is divided into equal expert groups, with each of these groups working on isolated portions of the activity. Once each expert group has completed the tasks, they report their findings as group to the class. Group report allows for greater flexibility in student presentation style and prevents the possibility of unintentionally misrepresentation of information (Beaudrie et al. 1998). This method best suits heterogenous learners across disciplines. It provides opportunities for learners to show various competencies. Moreover, students are more comfortable to exchange ideas with their co-learners because of their dynamic open relationship. Role playing Another instructional method of interest is role playing. It also deals with solving problems but through actions. In role playing, problems are identified, explored through actions and discussed. The students input in their role playing their prior knowledge, values and attitudes. A role-playing strategy seems to work best when there are multiple correct approaches to solving problems. It encourages thinking and creativity to develop and practice new behaviours in non-threatening setting. It provides opportunities for students to explore further their feelings; gain more insights about their attitudes and also enhance their problem solving skills. It also promotes effective interpersonal relations. The learning in these role playing activities are meaningful as they are retained longer and hoped to be of use to the real life of the learners. Terms which are used, often interchangeably with role playing are simulation, game, role-play, simulation-game, role-play simulation, and role-playing game. Role playing dynamically promotes effective interpersonal relationships and social transactions among learners. Technology Supported Approach Technology provides a set of tool for addressing the issues on improving student learning. These issues are of providing more of learners’ time on authentic, challenging tasks with rich contexts with emphasis on multi-disciplinarity; changing of role of teachers to facilitators of knowledge that guide students and learn along with them; students working in an environment of more cooperative relationships that encourages communication and access to real-world examples towards the development of learning communities; and with greater emphasis placed on reflective thinking and productivity with the understanding that students will preform their tasks differently and have different task-relevant skills ( Grabe and Grabe, 2004). WebQuest WebQuest, the model developed by Bernie Dodge, is an inquiry-oriented lesson format in which most or all the information that learners work with comes from the web. WebQuests is most often a group activity in a library or distance education setting. It may be enhanced by wrapping motivational elements around the basic structure by giving the learners a role to play, simulated personae to interact with via e-mail, and a scenario to work within. They can be designed within a single discipline or they can be interdisciplinary (Dodge, 1997). The WebQuest challenges he learner to be creative in problem-solving. In the world of education, there are so many instructional designs that can be utilized to end up with meaningful learning. No instructional method is better than the other but each one in the hands of a committed and learned teacher can merit students across academic levels and disciplines to bring about meaningful learning. References Beaudrie, B. , Slater,T. F. , Stevenson, S. Cadit, D. (1998). Teaching astronomy by internet jigsawing. Leading and Learning with Technology Journal, 26. , Retrieved December 13, 2007 from http://www. aem. umn. edu. Carin, A. A, Bass, J. E Contant T.L. (2005). Activities for Teaching Science As Inquiry. NJ: Pearson Prentice Hall. Dodge, B. (1997). Some thoughts about WebQuests . Retrieved December 13, 2007 from http://webquest. sdsu. edu/about_webquests. html. Gagne, R. M. , Briggs, L. J. , Wager, W. W. (1992). Principles of Instructional Design . TX: Harcourt Brace Jovanovich College Publishers. Grabe, M. Grabe C. (2004). Integrating Technology for Meaningful Learning. NY: Houghton Mifflin Company. Murdoch, K. (1998) Classroom Connections: Strategies for Integrated Learning. Melbourne: Eleanor Curtain Publishing.

Method for Measuring the Area of Radiometric Apertures

Method for Measuring the Area of Radiometric Apertures ERREIRA DA   Method for measuring the area of radiometric apertures using the ratio of Gaussian beams I propose and demonstrate a method for determining the area of radiometric apertures using the power ratio between Gaussian beams. The result relies on measuring the power of an optical beam of known radius with and without the radiometric aperture. The impact of the characterization of the laser beam and of the radiometric measurements on the area estimation is discussed and a 3-mm in-diameter sample is measured for validation. The contactless method is fast and simple and results in a relative uncertainty of 0.12%.   Calibration of the area of an aperture is necessary for radiometric and photometric measurements, including spectral irradiance [1- 4] and the realization of the SI unit candela [5-7]. The plethora of methods reported in literature can be assorted whether they are contact or contactless. Contact methods include probing the aperture border with an stylus, which position is mapped by an interferometric system [8]. Contactless methods are preferable as the possibility of damaging the sharp edge of the aperture during the measurement is avoided. A camera with an objective lens can be used for taking digital pictures of parts of the inner perimeter of the aperture, while an interferometric system is used for measuring the displacement of the images, allowing them to be further stithed together [9]. Another approach consists in raster scanning the aperture relative to a laser focused in a small spot in the aperture plane to determine the diameter at some radial angles [10]. Methods based on radiometric ratios have also been reported and depend on comparing measurements performed with a light overfilled aperture and a reference value. A spatially-uniform beam emerging from an integrating sphere can be used to compare the radiometric values obtained with the aperture under calibration and with the reference one [11]. Similarly a matrix of small-spot laser sources can be used [12, 13], with the reference provided by the known uniform irradiance distribution. In this paper I propose a method for determining the area of a radiometric aperture using the ratio between Gaussian laser beams. The result is obtained from measurements of the optical power transmitted through the overfilled aperture compared to the total optical power without the aperture, with the beam radius at the aperture plane previously characterized. The technique is contactless and the measurement is relatively fast, providing an alternative way for measuring radiometric apertures. A. Model The method proposed for determining the area of the aperture is based on measuring the radiometric ratio between the beam limited by the aperture and the full beam. Consider a Gaussian beam propagating along the zˆ  axis with an intensity distribution in the radial direction à Ã‚  on the transversal plane described as I (1) where the beam radius à Ã¢â‚¬ ° (z) is [14] (2) and the waist radius is à Ã¢â‚¬ °0 = à Ã¢â‚¬ ° (0). The beam radii in the analysis are taken at 1/e2 of the maximum intensity. The total optical power of the beam is obtained by integrating its intensity over the transversal area as   Ã‚   Ptotal /2(3) The circular radiometric aperture is modelled as a Boxcar function with mean radius r à Ã¢â‚¬ ° (z) and transmittance given by g (x, y) = rect(4) Positioning the aperture in the plane orthogonal to the beam axis at à Ã‚ =0 reduces the measured optical power in eq. (3) to Z r Pap (z) =I (à Ã‚ , z) 2à Ã¢â€š ¬Ãƒ Ã‚ dà Ã‚ (5) 0 The ratio between the optical power limited by the aperture at position z and the total optical power of the beam is thus [14] (z)2r2 R(6) The radius of the aperture is obtained by inverting eq. (6), resulting in r (7) Equation (7) reveals the dependence of the aperture radius on the beam radius à Ã¢â‚¬ ° and radiometric ratio R measured at a given axial position. The sensitivity coefficients of the radius equation relative to those components are 2(8) (z) The uncertainty of the measured area is composed [15] as ur (9) The area of the radiometric aperture is then trivially obtained from the circle formula, S = à Ã¢â€š ¬r2, with uncertainty given by uS = 2à Ã¢â€š ¬rur. B. Method The first step of the method is the determination of the longitudinal profile of the Gaussian beam. This can be accomplished in practice by using the knife-edge scanning method [16] or using a spatially-resolving photodetector (for example, a CMOS or CCD camera). While the later can be troubling for beams wider than the sensitive area of the camera, the primer requires caution relative to radial asymmetries in the beam profile. The astigmatism of the beam must be verified by knife-edge scanning along orthogonal directions in the transversal plane and the mean radius is considered. The beam longitudinal profile reveals important information about the tolerance of the axial positioning of the aperture relative to the transversal plane where the beam is determined. Next step consists on positioning the aperture in the beam path. Carefully placing the aperture front plane at the axial position where the beam has been characterized avoids the need for a correction on the beam radius value. The aperture under measurement must then be centralized relative to the beam axis. A recursive gradient search can be performed along the plane axes until convergence at the maximum optical power, where à Ã‚ Ãƒ ¢Ã¢â‚¬  Ã¢â‚¬â„¢ 0. The value of the optical power measured with the aperture is compared to the total optical power measured without it. This ratio and the mean beam radius are substituted in eq. (7) and the aperture radius is determined. Research Article Applied Optics 2 A laser diode with continuous-wave emission at 633 nm is collected with an objective lens into a meter-long single-mode optical fiber (Thorlabs SM600 [17]), which acts as a spatial filter by selecting the LP01 transversal mode. The beam is launched into free-space through the tip of an FC-PC connector and collimated using an 1-large AR-coated plano-convex lens (L2) with a focal length of 38.2 mm, as illustrated in Fig. 1. A similar lens (L3) with 150-mm long focal length focuses the beam into the photo-detector. Fig. 1. Experimental setup. LD: laser diode; L: plano-convex lens; C: fiber connector; PD: photo-detector; PC: personal computer. The beam profile is determined using the knife-edge method. A pair of razor blades is scanned in the plane orthogonal to the optical beam in both xˆ  (horizontal) and yˆ  (vertical) directions, using a pair of linear actuators (Newport TRA25PPD and CMA25PP). The optical power is measured by an optical power meter with a diffuser probe (Thorlabs PM100). Data acquisition and transversal positioning of the knives and aperture are performed with a personal computer. Flip mounts allow for selecting either the knives or the aperture, which are placed in the same xˆ  à ¢Ã‹â€ Ã¢â‚¬â„¢ yˆ  translation stage. The translation stages, the lens L3 and the photo-detector are fixed into a platform and move together to the desired position in axial direction zˆ . The aperture under characterization has nominal diameter of 3 mm and is built in anodized aluminium with sharp edges. The offset distance between the planes of the knives and the aperture is set within 0.05 mm using a multi-probe optical reflectometer [18]. An automated routine is used to position the aperture in the transversal plane relative to the optical beam by scanning it along xˆ  and yˆ  directions until it is centralized. The radiometric ratio is obtained by removing and reinserting the aperture using the flip mount while the power is measured using a silicon photodiode (Hamamatsu S1227-1010BQ) in photovoltaic mode. Calibrated trans-impedance amplifier (LabKinetics Vinculum) and digital voltmeter (Agilent 34401A) are used. Conditioning the signals for using a single range of these devices avoids linearity issues. The detector typical linearity is better than 10à ¢Ã‹â€ Ã¢â‚¬â„¢5 [19]. A. Beam width The width of the Gaussian beam is determined at different positions along the axial direction in both horizontal and vertical axes. Figure 2 shows a sample of the transversal beam profile Fig. 2. Sample of the transversal intensity profile of the beam. The slices in the details cross the center and are Gaussian fit. The longitudinal profile of the beam is evaluated by applying the knife-edge analysis at different axial positions. The optical power measured as a function of the knife position in xˆ  direction is modelled as the integral of the Gaussian intensity, resulting in the error function: P (10) Equation (10) indicates that the measured power profile reveals the horizontal beam radius à Ã¢â‚¬ °x (z). The procedure performed along the yˆ  direction returns a similar result as a function of the vertical beam radius à Ã¢â‚¬ °y (z). Figures 3a and 3b show the power measured with the knifeedge method along both xˆ  and yˆ  directions, respectively. A group of 10 scans, with 0.25-mm steps, is taken at a given axial position. Data is interpolated to steps of 0.1 mm using piecewise cubic Hermite interpolating polynomials [20]. Non-linear curve fit (Levemberg-Marquadt method) is globally applied to data with the beam radius parameter shared by all curves in the group. The beam radius values as a function of the axial distance to the collimating lens are shown in Fig. 3c. Observe that the beam profile behaves linearly at the sampled axial positions. Fitting data with eq. (2) reveals the horizontal and vertical waists localized at about 3.3 m and 3.7 m, respectively. The slope of 10à ¢Ã‹â€ Ã¢â‚¬â„¢4 indicates that a positioning error between the knives and the aperture of 0.05 mm has negligible impact on estimated radius. The beam is slightly astigmatic (horizontal radius about 1% greater than the vertical one), so the average radius is computed from both horizontal and vertical radii as /2(11) B. Radiometric ratio The radiometric ratio is determined from five groups of measurement of the total beam power, alternated with four measurements of the power limited by the aperture. Interleaved measurements allows for data interpolation and avoids slow drift effects. Each measurement is composed by a group of 30 data points, corrected by the dark measurement. Three measurement were performed at each axial position. The calibration data of the trans-impedance amplifier and voltmeter are used for correction and considered in the uncertainty budget see next section. The average ratio of 0.3373 allows for performing both measurements (with and without the aperture) in the same scale of the amplifier and voltmeter. Keeping the measurement range of the equipment fixed avoids linearity issues, which must otherwise be corrected and could burden on the uncertainty budged. C. Aperture radius/area and uncertainty budget The aperture radius is computed from the measured values of à Ã¢â‚¬ ° (z) and R (z) using eq. (7). The result obtained at three different axial distances from the collimating lens are presented in Fig. 4a. The uncertainty budget for the radius measurement is presented in Table 1. The uncertainty of the beam width and power ratio are combined with the reproducibility of the measurement. The radius measurement is obtained from the global fit of the knife-edge scan measurements. The impact of the beam divergence is obtained by multiplying this value by the maximum axial offset between the knife-edge and the aperture plane. The beam width uncertainty is dominant over all other components. Improvements over this estimation would greatly benefit the final uncertainty. The repeatability comes from the statistics of the ratio measurements. Stability of the laser source is the major component and could be iproved using a further power stabilization closedloop. The amplifier and voltmeter uncertainties are obtained Fig. 4. Experimental results: (a) aperture radius measurements and (b) its final area. The reference values are certified results. Standard uncertainties represent k=1. Table 1. Uncertainty budget for the measurement of the aperture radius (relative values). Component Type Uncertainty (k=1) Radius measurements B 5.3 ÃÆ'- 10à ¢Ã‹â€ Ã¢â‚¬â„¢4 Beam divergence [mm] B 2.3 ÃÆ'- 10à ¢Ã‹â€ Ã¢â‚¬â„¢5 Trans-impedance amplifier B 6.3 ÃÆ'- 10à ¢Ã‹â€ Ã¢â‚¬â„¢5 Voltmeter B 5.5 ÃÆ'- 10à ¢Ã‹â€ Ã¢â‚¬â„¢5 Photodiode linearity B 6.2 ÃÆ'- 10à ¢Ã‹â€ Ã¢â‚¬â„¢6 Power ratio 0.00017 Reproducibility [mm] A 0.00027 Aperture radius [mm] 0.00062 from their calibration uncertainty and from the linear regression over the measurement range. The photo-diode linearity is taken from literature. The reproducibility is taken from the independent repetitions. Among other factors, it accounts for small room temperature variation (oC), different axial positions, and repositioning of the aperture center relative to the beam axis. The final relative uncertainty obtained for the measurement of area is 0.12%. The validation of the method is assessed by comparing the results to a certified value, as shown in Table 2. The certificates present a relative uncertainty (k=1) of 0.0065 mm2 for the area value and a calibration drift (rectangular distribution) between bi-annual measurements of 0.0410 mm2 is observed, composing a combined uncertainty of 0.415 mm2. Research Article Applied Optics 4 Table 2. Experimental results and validation (k=1). Measured area Certified Relative Normalized [mm2] area [mm2] difference [%] error 7.0056  ± 0.0087 6.998  ± 0.042 0.11 0.18 The relative error between the measured and certificated values is 0.11%, while the normalized error [15] is below unit, indicating the compatibility of the results. The coverage factor of the measurements, calculated for a confidence interval of 95.45%, is k=2. The area of an aperture impacts directly on the determination of some radiometric and photometric quantities. This paper presents a simple and fast contactless method for characterizing an aperture area through the measurement of radiometric ratio of characterized Gaussian beams. The model is presented and the measurement uncertainty budget is discussed. The results are validated and indicate the method as suitable for metrology applications. References       M. White, N. P. Fox, V. E. Ralph, and N. J. Harrison, The characterization of a high-temperature black body as the basis for the NPL spectralirradiance scale, Metrologia 32, 431-434 (1995/96). P. Sperfeld, K.-H. Raatz, B. Nawo, W. Mà ¶ller, and J. Metzdorf, Spectralirradiance scale based on radiometric black-body temperature measurements, Metrologia 32, 435-439 (1995/96). P. Kà ¤rhà ¤, P. Toivanen, F. Manoochehri, and E. Ikonen, Development of a detector-based absolute spectral irradiance scale in the 380-900-nm spectral range, App. Opt. 36, 8909-8918 (1997). H. W. Yoon, C. E. Gibson, and P. Y. Barnes, Realization of the National Institute of Standards and Technology detector-based spectral irradiance scale, App. Opt. 41, 5879-5890 (2002). L. P. Boivin, A. A. Gaertner, and D. S. Gignac, Realization of the New Candela (1979) at NRC, Metrologia 24, 139-152 (1987). T. M. Goodman and P. J. Key, The NPL Radiometric Realization of the Candela, Metrologia 25, 29-40 (1988). E. Ikonen, P. Kà ¤rhà ¤, A. Lassila, F. Manoochehri, H. Fagerlund and L. Liedquist, Radiometric realization of the candela with a trap detector, Metrologia 32, 689-692 (1995/96). J. E. Martin, N. P. Fox, N. J. Harrison, B. Shipp, and M. Anklin, Determination and comparisons of aperture areas using geometric and radiometric techniques, Metrologia 35, 461-464 (1998). J. Fowler and M. Litorja, Geometric area measurements of circular apertures for radiometry at NIST, Metrologia 40, S9-S12 (2003). J. Fischer and M. Stock, A non-contact measurement of radiometric apertures with an optical microtopography sensor, Meas. Sci. Technol. 3, 693698 (1992). V. E. Anderson, N. P. Fox, and D. H. Nettleton, Highly stable, monochromatic and tunable optical radiation source and its application to high accuracy spectrophotometry, App. Opt. 31, 536-545 (1992). A. Lassila, P. Toivanen and E. Ikonen, An optical method for direct determination of the radiometric aperture area at high accuracy, Meas. Sci. Technol. 8, 973977 (1997). E. Ikonen, P. Toivanen and A. Lassila, A new optical method for high-accuracy determination of aperture area, Metrologia 35, 369-372 (1998). B. E. A. Saleh and M. C. Teich, Fundamentals of photonics, 2nd ed., 2007. JCGM 100:2008, Evaluation of measurement data Guide to the expression of uncertainty in measurement, 1st ed., 2010. M. A. C. Araà ºjo, R. Silva, E. Lima, D. P. Pereira, and P. C. de Oliveira, Measurement of Gaussian laser beam radius using the knife-edge technique: improvement on data analysis, App. Opt. 48, 393-396 (2009). Some equipment and components are cited for the sake of clarity and this does not mean endorsement or recommendation. T. Ferreira da Silva, Multi-probe remote differential optical lowcoherence reflectometer, Microw. Opt. Technol. Lett. 58, 2606-2609 (2016). A. Haapalinna, T. Kà ¼barsepp, P. Kà ¤rhà ¤, and E. Ikonen, Measurement of the absolute linearity of photodetectors with a diode laser, Meas. Sci. Technol. 10, 1075-1078 (1999). https://www.mathworks.com/help/matlab/ref/pchip.html (accessed in 10/24/2016).

Body Dysmorphic Disorder Essay -- Differential Diagnoses

Regina is a teenager who’s living in a college dorm. When she was younger she broke her nose and afterwards a tiny bump remained. By the time she was a legal adult, Regina thought she had a facial deformity. She became obsessive and refused to go in public. Even after she underwent plastic surgery she still found something else wrong with her face. All this (along with other symptoms) has led me to diagnose Regina with body dysmorphic disorder. People who suffer from body dysmorphic disorder exhibit certain symptoms. Some of these include social isolation, seeking surgery, camouflaging (trying to hide their perceived flaw with clothes, makeup, etc.), and comparing body parts to other peoples appearances (American Psychiatric Association, 2013). Regina first thought the small bump on her nose was a monumental flaw that had to be corrected. Without that fix, she became socially isolated and wore clothes (giant sweatshirts and hoodies) that would cover up this perceived imperfection. Furthermore, Regina couldn’t face â€Å"normal† looking people. She compared herself to others and deemed herself a â€Å"hag.† Everyone else was so much better looking and she was too ugly to be seen in public. After her surgery she began to act normal again, but only for a short while. Soon after she thought her forehead was rife with â€Å"worry lines.† She begged her parents to pay for more plastic surgery, which t hey declined. She even went to great lengths and opened a credit card account to pay for the surgery. Now Regina is in the unfortunate position of not being able to keep up with all her bills. Even after all that, she’s still obsessive and has started to skip college classes. All of this due to her â€Å"appalling† wrinkles on her forehead (which others do... ...things they found positive and attractive about her appearance. I would try to introduce her to positive things (such as small social outing with friends and family) to try and get her to change how she responds around others. Slowly, I would introduce Regina back to her college campus and try to show her that it’s only her way of thinking that is causing her disorder (since no one else can see her flaws). My main goal of treatment is to get Regina away from her harmful thoughts and see her in a positive light. Cognitive therapy is all about changing thoughts and emotional responses. Hopefully though repeated effort and altering her thoughts to positive ones, Regina could begin to recover. Works Cited American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders. (5th ed.). Washington, DC: American Psychiatric Association.

Hindu Stages of Life Essay -- essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  According to the Hindu religion the first stage of life is called Student. This stage begins when the child is between the ages of eight and twelve. In this stage the child or â€Å"student† is dependent on the teacher. The teacher is the person who the student lives with, usually not his or her parents. While the student is living with the teacher or master, he exchanges services for lessons. The service the student gives to the teacher is by doing anything that would please the teacher or that would make him comfortable. The type of things that would please the teacher would be, living as he was taught, telling others about the â€Å"religion†, participating in everyday ritual, etc. To make the teacher comfortable the student may get the teacher a blanket, something to eat or drink, or a chair to sit on. The teacher in return gives the student lessons. These lessons help build the students values and character. The teacher may give the student com mon knowledge as well.   Ã‚  Ã‚  Ã‚  Ã‚  The second stage of life, according to the Hindu religion, is Householder. This stage of life begins when the student is in his twenties and goes until he is around fifty. In this stage the student gets married and develops his own family. He also takes on success through his career and duty to the community. This is the stage where the fulfillment of pleasure takes place. These pleasures include; worldly success, duty to community and anything that would re...

The Democratization of Monsters as Characters :: Monsters Literature Novels Essays

The Democratization of Monsters as Characters Proportion and distortion are not just irrelevant to monstrosity. Monsters are not weird or wrong versions of ideal forms, and the monstrous is not that which violates the rules of the game or calls boundaries and order into question. There are no necessary narratives that are inevitably reacted to (making it just a question of how). At the same time, this is not an anarchist thesis. At one level, monstrosity is obviously that which is called monstrous. However, there must be something too it. Right? Ways of writing, reading, or thinking monstrosity enact monstrosity, just as an era’s critics often embody their culture better than the society they critique. What is interesting instead is how to react to monstrosity in its face today. Proportion is certainly not the issue. Pro portions look for portion and then compare them, without offering criteria for comparison. Elementary definitions of simile and metaphor are not instructive in this regard. A simile is a metaphor with ‘like’ or ‘as’, and both are comparisons, but comparisons are acts or statements of comparing. To compare is to describe as similar, equal, or analogous. First, similar means alike but not identical, and alike means having close resemblance – which is the state or quality of exhibiting similarity or likeness too. Second, equal means having the same measure or value. Same means being the very one, identical – which means being the same, exactly equal, or just indistinguishable and so interchangeable. Third, analogous means â€Å"similar or alike in such a way as to permit the drawing of an analogy†, and analogy means â€Å"similar in some respects† or a â€Å"comparison b ased on such similarity†[1]. The whole batch of words that try to explain comparison end up relying on the exhibiting of similarity to come from the object, measurement to be intrinsic to the object, interchangeability to be possible by inability to distinguish, and objects with respects that can be the previous things. Exhibition is not a one way street by which objects strike passive actors. Equal means having the same measurement.

“Forgiving my father” by Lucille Clifton Essay

As a person treads through life, he or she will realize at one point or another that the existence of complex relationships will often have an affect on the actions of those involved. The nature of these relationships can have either a positive or negative effect on a person depending on the nature of it, or how severe its elements are. It is human nature to hold emotions inward and uphold a proud countenance; however, those who go against this natural tendency will exert a rebellion of sorts to any and every falsehood. In the poem â€Å"forgiving my father† by Lucille Clifton, the speaker describes a daughter is haunted by recollections of strife between her and her father. The speaker in the poem actually seeks to hold her father accountable for his shortcomings instead of forgiving him for his deficiencies. In the poem â€Å"My papa’s waltz† by Theodore Roethke, it is clear that the papa and the child have a relationship sprinkled with fear, joy and love. Both fathers in the poems are dangerous to their child in many ways. In Clifton’s poem, the speaker is in danger because of the mental distress and financial instability caused by her father. In Roethke’s poem, the speaker is in danger mainly due to his father’s abusive behavior. In Clifton’s poem, the speaker is using a monetary debt to symbolize a debt of love and affection. The father in this poem is unable to provide the necessary care for his family which leads to the early death of the speaker’s mother, and causes mental distress to the speaker. The speaker is haunted by her father even in sleeping. â€Å"all week you have stood in my dreams/like a ghost, asking for more time†(Clifton, Lucile â€Å"forgiving my father†, line 3-4) How can a ghost pay debts and asking for more time? It cannot. The word â€Å"ghost† symbolizes the worriment that the speaker has over the unpaid debts and lacks of care. While on the other hand, the father in Roethke’s poem, comes home drunk after a long day just in time for his son’s bedtime.†The whiskey on your breath/Could make a small boy dizzy/We romped until the pans/Slid from the kitchen shelf;/My mother’s countenance/Could not unfrown itself.† (Roethk e, Theodore â€Å"My Papa’s Waltz†, line 5-8) Envisioning a heavy-drunk man romping through the house with his small son, it is easy to see why a mother may frown at the spectacle. It is nearly time for bed, and the father is doing everything to get the son riles up rather than calm down for sleep. The fact that the romping dance is even disrupting  the order of the mother’s â€Å"kitchen shelf† surely contributes to her frowning countenance. Instead of bringing joy and love to their home, neither one of the fathers cares about his family. They bring danger to their family and leave unhealed wounds on their children. The father in Clifton’s poem is dangerous to the speaker. The relationship between the speaker and her father is marked by resentment and abandonment. In the second stanza of the poem, the speaker states that her grandfather is also a needy man just like her father.†but you were the son of a needy father,/the father of a needy son,† (Clifton, line 12-13) With neediness flowing through the family, the speaker is worried about her own destiny. The father in this poem sets a miserable path for the speaker to follow. In comparison to the father in Clifton’s poem, the father in Roethke’s poem abuses his child physically. The speaker depicts a harsh father-son relationship is that the description of the dancing is violent with systematic child-abuse. â€Å"The hand that held my wrist/Was battered on one knuckle;/At every step you missed/My right ear scraped a buckle./You beat time on my head† (Roethke, line 9-13) The father â€Å"beat time† on the child’s head and crashes around the room so much that â€Å"the pans/slid from the kitchen shelf.† The word â€Å"beat† is a clear indication of abuse, and the fact that the child is held still by a hand that is itself â€Å"battered† strengthened the sense that manual violence is the subject of the poem. A child doesn’t voluntarily use the word â€Å"beat† in the context of an adult’s relationship to the child unless intending to suggest child-abuse. The image of the father’s belt buckle scraping the child’s ear in the third stanza confirms the father uses whatever tools are available to accomplish this beating. Furthermore, the child doesn’t appear to be enjoying himself. â€Å"But I hung on like death./Such waltzing was not easy.† (Roethke, line 3-4) The child describes the â€Å"waltz† as requiring him to hang on â€Å"like death† is hardly a positive description of something a little boy would welcome. The word â€Å"death† raises the threatening reminder that child-abuse all too often has fatal consequences. In conclusion, both fathers are dangerous to their children. The father in  Clifton’s poem possesses an invisible danger to the speaker; while the other father possesses a visible danger to the speaker. However, I learn an important lesson from both poems also, which is to appreciate my parents even more. It is because my parents always love me unconditionally. I also learn to forgive others who may have hurt me either physically or emotionally. Often, forgiving someone can be a hard task. It can even be a crime for those who wish never to forgive. Forgiveness must come from the heart, and can be the solution to both parties.

Marketing Plan Proposal Essay

I will develop a marketing plan for my company’s new product, the â€Å"Walker Photo Display & Storage Solutions† product I will introduce on the global market next year sometime. The â€Å"Walker Photo Display & Storage Solutions† product will allow any kind of loose photographs to be easily displayed in a collage format on any bare wall anywhere. It will include a divided safe storage box designed to protect loose photographs from damaging light, chemicals and rough handling to name a few things! I think my target audience is teenage boys and girls, male & female college students, educators, homemakers, business owners, retired folk, hobbyists, collectors and basically anyone that has a need and desire to do something with the piles of loose photographs we all have laying around the house! I will directly market to pre-teen and teenage kids, college students and their faculty members, housewives and husbands, law enforcement, real estate, the entertainment industry, businesses and numerous other identified and yet to be identified markets! I have perceived there was a need to create something specific, simple, durable, easy to use, inexpensive, customizable and practical to display and store all the loose photographs I had laying around and the ones I saw elsewhere laying around, unseen, decomposing and being neglected. I had taped loose photographed to my wall on occasion in a sort of collage formation, but it looked kind of cheesy, so I felt I could create something cool to display and store them in! After a few years of random survey’s with various people from all walks of life, I found my perception to be correct, that there was indeed a genuine need for my invention, and it appeared there was a vast global market for it! Creating this product so it can be easily ordered, customized and received will be a bit of a challenge, but one that I believe is well worth taking. I am very passionate about my new product that will be distributed from my new company, â€Å"DoakUnlimited.llc†. So, it is my intention to solve the decades old question & dilemma of what to do with all the millions and millions of loose photographs lying around in drawers, shoeboxes and elsewhere!

Poem

The poem mess it's about a town sunken in floods, when it says â€Å"deserted room through which a river passes/dragging along the stones†. It also says â€Å"l arrive full of mud and death† and â€Å"corpses are sleeping† which shows significant amount of deaths that would occur during a natural disaster. Also, emotions such as fear and sadness have been conveyed through lines such as â€Å"menacing gestures†, â€Å"a terrifying deserted dining room† and â€Å"l am sad†. â€Å"Melancholy inside families† is a visual experience In the form of words, depicting a disaster struck environment.Furthermore, it can be Imagined hat the 1st person narration Is coming from some form of matter other than humans. 2. Record two examples of Juxtaposition In the poem. â€Å"A dining room where roses arrive/a dining room deserted† and â€Å"a grocery store â€Å"a dining room deserted as a fish bone†- simile. â€Å"a ray of moonlight t ied down†-metaphor. 4. It only takes a moment for everything to fall apart, tomorrow is not going to be what it is today. PART B 5. Describe Nurse's inspirations.During his beginning years, Nurse's inspiration was his mentor Gabriele Mistral, who gave him encouragement; this is clearly visible in his first poem titled enthusiasm and perseverance†. Once he had established himself in the publishing industry, his inspirations were drawn from social and political beliefs, especially communism and Marxism. A great example for this is his work during the Spanish civil war and revolution which resulted in the loss of his friend Garcia Loran. This difficult time inspired his work â€Å"Spain in our hearts†.As pragmatic his political views were, his romantic side was equally notable. Nearer went through many failed relationships before he met his wife, these heart-breaking experiences inspired any of his romantic works, and the top of the list would be his work â€Å"20 p oems of love and 1 song of desperation†. Needless to say, almost every experience in his life has inspired him. For example, when he was forced into exile by his own countrymen, he came up with his work â€Å"The Grapes and the wind†.In his final years, his inspiration was his wife; his love for her inspired him to write â€Å"100 Sonnets of Love†. 6. Other than poetry, in what activities was Nearer involved? Other than poetry, Nearer had an eye for political reforms such as promoting communism and Marxism In both Chile and Spain. He was also responsible for keeping up diplomatic relations for the countries he represented (Chile and Spain). 7. In your own words, describe Nurse's poetic philosophy. Nurse's poetry is not imaginary or larger than life, it is based on real life experiences of the past, present and coming future.Nurse's idea was not satisfy his thirst for writing poems but to entertain people by constantly experimenting with his poetry, similar to how Picasso experimented with his paintings. Just like Picasso, Nurse's works were also drawn from war, misery, pain sufferings and love. It is understood Nearer was a one who believed pen is mightier Han sword, because no matter how difficult his situations were, he responded through his poetry about his life also managing to woo women with his romantic works. In my opinion, Nurse's philosophy was to help people understand what was happening around them.Nearer possibly felt that people were living in an environment where their vision was being clouded and he felt it was important to they have a beautiful and prosperous country to live but they are not getting full advantage of it, this is of course with reference to his work inspired from politics. However, in terms of his love poems, he wanted to help readers relate the poem to heir lives, since he has had experiences which his readers also might have had, such as failed marriage, relationships and falling in love. PART C 8. Day drea mer So often I drown†¦ To this thick white puddle. I do not recall its foundations.It never found me in sleep, for my eyes were never shuttered when it struck. It struck in silence so it never occurred, until the teacher's apple struck with vengeance. Reel of images stop abrupt, eyes crowding on me from every needle. My soul lost, hardly found way back inside. I did not stop it, now way But face it. Wrapped around me like load not, like a girl who held my face and let stare. I was living double lives and climbing cliffs. Often climbing halfway, breaking into portals, Nearly reaching summits that let fly buttoned, yet unbuttoned shirts. And often I see Rum's field, beyond right and wrong.Should I Jump, should I survive? I Jump, for I was immortal to the subconscious. So l, the attention deficit, flinching at my immortality, divinity, hunger to imagine, comparing myself to the creator, for I nurtured a world where I was, just me. 9. Write a love poem to Mario to Beatrice. Be sure to include metaphor. Perch © by Shun Moon perch ©? I the brave onlooker, loud but shy, fisherman yet weak, y boat will sink at when your waves of gaze taunt me. Perch © ? I the Play full lime, Riding along the eclipse of Sun, sea and cliff. Absent and careless, present And dreaming.I will pedal for you till the End of top, through hairpins To heaven and fall to the end of bottom. Perch ©? I the speechless owl, Drifting raft with a leaking drum, Blood and sweat, rush and drain, Drenching me when you near, This isn't fear, its hard labor, Trying to handle your ignorance As you gush past. Don't look away, I'm No prince, I'm no Jester, I'm no gold. I'm me, I'm strong, I'll play with you, Laugh with you, I'll cry With you, I swear on thee I'll flee before sun rise, In search of metaphors and Come suffer with me, I'll return For you when sun shay away, with bread, butter and love.Perch ©? I the awful poet, Looking for words to claim Your heart, I may fail now, but this birth I shall spend gathering courage to say I love you. 10. Identify three aspects of Nurse's real life used in the film. What facts have been changed? A) Nearer fled his country into exile due to political pressure. B) Nearer was admired by females. C) Nearer very much loved his wife. However, Nurse's wife is said to have been a singer, but the movie does not put any mind of spotlight on her. Also, Nurse's exile was not spent in Italy. 1 . How are words shown to have power? State what the film has to say about the power of words and poetry. Words are the main reason the character Beatrice fall for Mario, it Maria's research on metaphors and poetry that led to him reciting poems that flattered Beatrice. In the movie, Nearer tells Mario that he needs an inspiration for his poetry and not Just words, and Mario figures out that Beatrice has to be the centre of his inspiration if he has to write her a poem and not Just metaphors.The vie also emphasizes that setting plays a strong role in writi ng a poem, as the movie shows Nearer asking Mario about the most beautiful things about the town and in the end of the movie Mario recording what are actually the most beautiful things about the town. 12. Beatrice poem to Mario. Wedding bells Walk down the aisle, For I have fallen for thy Words or purity. Find your best man, For I'm ready to march With him towards god. Same when two circles Of gold enter this life For the bond that may See no end. Carry me to the shay, For I shall ride with You to the end of the world.

Best Journal Article Award Essay

Academic journals are periodicals in which scholarly material relating to a certain academic discipline is published and reviewed. These peer-reviewed periodicals provide a platform through which new topics or ideas pertaining to that particular discipline can be introduced, researched and debated upon. The articles published are details of original research conducted by one or a group of stakeholders, reviews of book publications related to the discipline, and are therefore sometimes commonly referred to as professional magazines. They range from journals of science to applied technology, journalism, social sciences and humanities. In the professional circles, there is a habit of any willing interested party making unsolicited submissions of their research and discoveries, opinions or articles to these professional magazines. Usually, a bench of editors peruses the submitted entries to determine their quality and relevance and therefore choose which entries they are going to publish and those that are going to be published. Once an article has been published, any interested parties are free to respond either in support or criticizing the information published therein. This is what is called peer reviewing (Effs. org, 2009). Reviewing involves the checking of progress on the research of topics published in these professional journals. This process covers progressive research either on a long term or short term depending on the topic concerned. The reason for journal awards is that the prestige of an academic journal’s award establishes itself over time; the dominant academic journals consequently receive the highest number of submissions and are consequently the preferred choice of seeking the relevant information and opinion regarding a certain topical issue. It is for this reason that certain journals dominate over others in terms of relevancy and credibility. For example in the United States of America, the American Historical Review and the Journal of American History have been able to stamp their authority over most of the other related journals. The ranking of journals is based on the prestige derived from their accuracy, relevance and professional reverence of their most frequent contributors. In the fields of technology and applied science, it is easier to establish the top most journals but when it comes to the social sciences, it becomes very hard to rank these journals mostly on account of the diverse nature of the opinions available and the scope of the discipline. The approach used here is estimating the impact factor, that is counting the total number of submissions following the publishing of all particular original submissions and also counting the number of citations based on the publications (Carl, 2000). The duration through which submissions are continually cited, also called the half life, is an important criteria of gauging the impact of a particular journal. In virtually every professional discipline, it is very important that the industry players get a feedback to gauge the standards and the levels of professionally time over time. To increase competitiveness, progress and professional integrity, different foundations have initiated programs of awarding excellence (Clapp, 2003). Individuals who have demonstrated extraordinary professional standards are awarded depending on merit and this acts as a source of motivation to the recipients but also to their competitors and partners to put the specific industry on the course of achieving greater heights. The importance of the media on contemporary society cannot under any circumstances be underestimated. It is the media that is on the forefront of creating awareness on the most relevant topical issues directly affecting people. From politics to the economy, human rights to diseases and education, the influence of the media is the most significant. It is not a surprise that most people base their interpretation of topical issues almost always based on how the media has put the facts on paper (Wheeler, 2009). It is for this reason that there has been a lot of effort geared towards ensuring that the media is impartial, relevant and correct on the issues that are of most significance to society as its role in determining how they are received by society in general is insurmountable. To increase integrity in this important industry, very many civil, corporate, governmental and even private organizations have come up with numerous awards all aimed at rewarding excellence and increasing journalistic standards. Among these, perhaps the most significant is the award gala night organized by the International Centre for Journalists (ICJ). Each and every year, the ICT holds an award dinner in honor of the achievements and feats accomplished by its fellows. These awards honor those journalists who have, for the preceding year, demonstrated an extraordinary commitment to the cause and have exhibited the most commendable professional standards (Mackenzie, 2007). This colorful event brings together those journalism professionals from the United States of America as well as from overseas countries, who have made the headlines, constantly putting their lives and safety on the line to bring in the news as it is from the harshest and most hostile locations around the world. They are a perfect demonstration of a passionate commitment of excellent news collection and pointblank reporting. Another significant excellence award by the journalism industry is held by The Canadian Journalism Foundation. Started just over ten years ago, the Excellence in Journalism Award has continued to gain credibility over the years. It is now one of the most prestigious journalistic awards held annually and is the only award of its kind given to a media organization for exhibiting an overall excellence in journalistic performance (Chism, 2006). The Excellence in Journalism Award aims to recognize an outstanding dedication to the cause of journalism. Sponsored jointly by the Jackman Foundation and the Canadian Journalism Foundation, the Excellence in Journalism Award has the overall objective of embracing and enhancing the social and political ideals of citizenship under a working democratic system, rigor and professionalism in journalistic practice, honesty and independence in ideology, accuracy in information collection and accountability (Fredrick, 1995). The award also rewards initiative and an artistic flair in information presentation and clarity. The excellence in Journalism award has winners in two separate categories. One award is dedicated to small and medium sized media houses from the locality (that is within Canada) and the North American region while the second category is for the large national and international media houses. The next awards are scheduled to be held on the fifth day of March this year. The Radio Frequency Identification (RFID) Journal Awards are the other main journalistic awards. Specifically targeting the radio broadcasting industry, he awards are aimed at recognizing those radio companies that have stood out from among their competitors in terms of successfully using the technology of Radio Frequency Identification. The RIFD journal, to ensure a relevant and trustworthy, has put in place a panel of qualified judges who undertake the work of evaluating all competitors and eventually choosing the winner (Burnett, 2000). The aim of these awards is to encourage the application of the radio frequency identification in radio broadcasting and award the winner in this sector. The RIFD has five distinct award categories fro the best implementers of the radio frequency identification technology, the company that has best used frequency identification to enhance their service and the quality of their service to their clients and a special achievement award (PressRelease. com, 2009). Other influential journals include the Harvard Law Review, The Academy of Management Journal and the American Journal of Sociology for the discipline of Social Sciences, the Proceedings of the National Academy of Sciences and the Proceedings of the Royal Society and Science in the area of general sciences. In the specific sciences, the leading journals are the Archives of Sexual behavior, Industrial Engineering and Industry Research and the Journal of the American Mathematical Society (Wankat, 2005). The reason why journals hold award giving events is to award leading contributors for their commitment and research in a particular discipline and therefore encouraging research and progress. The prestige of any intellectual society is directly derived from the relevance and applicability of their findings; therefore by awarding leading researchers, there is every potential of encouraging further leaders and nurturing the aspirations of future scholars and therefore ensuring intellectual continuity.

Modivication of ELP Essay Example | Topics and Well Written Essays - 1000 words

Modivication of ELP - Essay Example The main reason for choosing the computer network and communication technology specialization is hone my technical acumen, as this will qualify me to attain a future high scientific position in this field. The world now is taking a significant technological leap that requires more professional workers and developers. I am ready to meet the requirements of this Digital Age. Through further study and perseverance I will convert the theoretical academic knowledge into practical scientific applications in the area of communications technology. Study at Coventry University allows one to coexist and identify with a wide-array of students and cultures. There are many things that can be gathered from experiencing this multicultural perspective. I’ve found one of the most relevant application of the Coventry community occurs in collaborative activities, where students share scientific specializations, construct reports, create the projects, and present the findings. The multi-varied cultures, languages, religions, and traditions Coventry university cultivates is truly inspiring. Coventry university characterizes development in all fields, matching global business development to contemporary teaching methods. In the final year of my specialization module (mobile and Wireless), the class visited the BT company to support students practical study and experience. There are several positive factors will help me gain enough familiarity with information about network and communication technology. These factors have motivated me to complete my postgraduate degree study at Coventry university. - My driving force to success is the working collaboratively on study topics and meeting with other students; I also plan to consult with the school’s teachers who have relevant experience in my specialty. - I have the required expertise to utilize the laboratory equipments, particularly those related

Technological Transformations of Society Essay Example | Topics and Well Written Essays - 2750 words - 1

Technological Transformations of Society - Essay Example As the above definition explains, technology is about applying technical means to life. In today’s developing world, technology is all around us. Its presence can be felt in almost all fields of life. Social Networking is no exception. In fact the term social networking itself is a product of innovative technology. Social networking means to socialize via a network which is mostly done online, using some supporting platform. Most social networking websites enable the creation of a personal profile, where members of the network or ‘online family’ can feed their basic information and photographs etc. the members can then connect with other members on the website via platforms associated with these profiles. According to one definition, social networks are: â€Å"Web-based services that allow individuals to construct a public or semi-public profile within a bounded system, articulate a list of other users with whom they share a connection and view and traverse their list of connections and those made by others within the system. The nature and nomenclature of these connections may vary from site to site.† 2 Face book is one of today’s leading social network websites. According to one survey, people spend three times more time on face book than they do on Google (Ostrow, 2009). The main features of face book include: Face book profile, friend finder, photo and video sharing, news feed, personal wall and face book games. Face book originated as ‘Face mash’ back in 2003 by a Harvard student named Mark Zuckerberg. The privacy policy of ‘Face mash’, which later became as ‘face book’ was criticized and the creator of this program faced many legal suites in this regard (Web hosting report, 2009). Zuckerberg mainly faced criticism against open exchange of data viewable by practically any body on the internet. The privacy policy of face book has been undergoing a lot of changes since its creation. ‘Face mash’, originally meant for Harvard

Research Essay Example | Topics and Well Written Essays - 500 words - 25

Research - Essay Example Many clients find solace in the fact that the facility is Christian based so they trust that that the care they receive will not clash with their beliefs. However, regardless of their religious beliefs, clients receive equal quality care and respect in a safe setting. The treatment team is made up of a psychiatrist, a dietician, a nurse, psychologists and master level counsellors who cooperate in providing medication management, educational, life skills and problem solving groups, private counselling sessions, and other treatment interventions as required. Since 1987 the clinic has been providing outpatient counselling in Wheaton and has satellite facilities in Northbrook, Geneva and Chicago. The clinic works with clients of all ages, families and couples who want help for different mental health and relational problems. The staff blends Christian principles with good psychological treatment in developing and providing a treatment plan appropriate for each person, couple or family (Medicine Inc. 21). The workforce includes psychologists, doctoral interns/students, neuropsychologists, adult psychiatrists, licensed master level counsellors, child and adolescent psychiatrists, and licensed clinical social workers. The facility provides a broad spectrum of care including medication management and neuropsychological/psychological testing in addition to general counselling services. Individuals, families and couples who are struggling with life issues are highly encouraged to contact the facility because â€Å"that’s the first step to finding aid and healing required to enjoy the fullness of life once again (Medicine, Inc. 29). There is a dedicated and professional intake staff available to talk to clients on phone from Monday-Friday from 9.00 a.m. to 5.00 p.m. to offer short phone assessments and establish whether outpatient counselling or another program is more

Marketing Management Principles, Practices and Religion Essay

Marketing Management Principles, Practices and Religion - Essay Example On the other end, faith, which happens to be the greatest provider of meaning in all people’s lives fails to register not even a single statement on the radar of nearly every mainline of marketing reading materials published in the past rigid couple of decades. This apparent and particular paradox is the systemic provider of the backdrop to this paper. Today, different analysts are examining the berthing idea of adjoining politics and religion into the broadened marketing camp. There are brief contemporary reviews of religious marketing, where analysts are undertaking comparison of politics and religion to assess whether these pillars can conform to a uniform framework of marketing for environments, which are non-business. Again, there is critical examination of the idea that religious economy validates marketing in faith environments. All these examinations depict a common factor whereby, they all aim at determining whether it is appropriate to apply marketing management prin ciples and practices to religion (Daft & Marci, 2010). This paper will explore significant objectives that revolve around adopting principles of marketing and methods that show the degree in which marketing management principles finds it appropriate to apply adoption of religious practices and principles.... best part of the past century is that, there has been continuous adoption of marketing principles and practices but its seeds are appearing in the modern part of early years of the twentieth century where disciplinary forms of academics are revealing modern systems of marketing in politics. Years earlier, innovators came up with mass leafleting, polling through computers, personal letters, and established relationship between marketing, and the World Wide Web where efforts to incorporate business and religion passed fruitlessly. This is because of the fact that, most of these innovations oriented business into politics as opposed to business and religion (Curry, 2009). A brief survey of religious marketing Late twentieth century witnessed accelerated adoption of methods of marketing from the mainstream of consumer marketing to initiation in different aspects of life such as religion. At the close of twentieth century, every channel presented and segmented different religious services where the public has an opportunity of choosing. Different writers started documenting the emergency of religious marketing as part of academic focus in early 1980s. Since then, publishing of religious marketing management reading materials started only to last for no more than a year (Vallabhaneni, 2008). However, as time went on, these religious reading materials took a different direction as they started appearing once more in the late 1990s. Particularly, in the US where there a number of organizations equipped with special knowledge, books, and courses were available with the view of helping churches grow and expand their congregations by applying marketing methods and practices into their marketing mainstream. The challenge of religious marketing Even though there are no conventional

Evaluating Teachers Unions Article Example | Topics and Well Written Essays - 2000 words

Evaluating Teachers Unions - Article Example They also discover and develop individual skills and talents in students, and the senior teachers also guide and mentor their assistants and trainees (Wahlstrom & Louis, 2008). In addition to the standard lesson-exam tasks, teachers are also responsible for the overall growth and development of their students as insinuated by Mr. Pipler who states that he is responsible for the overall development of his students. Considering their overwhelming tasks and their instrumental role in academic implementation, therefore teachers deserve rewarding employment packages. Unfortunately, the government and other employers tend to ignore teachers’ welfares and hence they depend on teachers’ unions to advocate for them. Teachers’ unions present their grievances to the government and if they are not met they mobilize their members to engage in attention-seeking actions such as strikes (Hoxby, 1996). Many observers feel that some of these actions are extreme and that unions should engage in conciliatory talks to avoid academic disruptions (Boyd, Plank & Sykes, 2000). Union leaders and teachers justify their actions and declare that all their actions work to improve the education system (Boyd, Plank & Sykes, 2000). This brings up the following question: Are teachers’ unions a solution or an impediment to the improvement of the education system? I conducted an investigative researc h to answer this question and the findings were insightful. In order to understand the situation properly, we need to understand the professional demands and responsibilities of teaching as a career. Many people think of teaching as an 8 a.m. to 4 p.m. schedule job. Teachers engage in many academic chores after official working hours such as academic research, setting, and marking examinations. In addition to these academic tasks, we have to remember that teachers have a social responsibility of managing students (Wahlstrom & Louis, 2008).

Literature review on performance management Essay

Literature review on performance management - Essay Example t part summarizes the performance management process, the second part discusses the reasons for failure of performance management systems and the last part relates these reasons for failure to my organization. Here the organization must clarify the mission, goals, priorities and expectations to be achieved. Effective goals and objectives should be; clearly define end results to be accomplished, should have a direct link to organization success factors, set in not more than three areas as attempting to achieve too many different goals at once impede success and should be difficult but achievable so as to motivate performance (Pulakos, 2004). Performance management planning is a tool of communication for ensuring mutual understanding of work responsibilities, priorities and performance expectations (Indiana University, 2005). The planner must review with the employees, both the expected results and the expected outputs during the performance management cycle. These behavioral and results expectation must be tied to the organization’s strategic goals and objectives (Pulakos, 2004). After the managers have set objectives and standards and communicated to all the employees. Their next role is observing how the employees put the set guidelines into practice and providing feedback. The managers should reinforce strong performance by an employee, identify, and encourage improvement where it is needed. Coaching is one method that the managers can use in improving employees’ productivity. University of California (n.d) explains, â€Å"Coaching sessions provide you and the employee the opportunity to discuss progress towards meeting mutually-established standards and goals† (para 4). According to the University, coaching is important because; it strengthens communication between the manager and the employee, it helps the employees to attain performance objectives, it improves employee motivation and commitment, it maintains and increases the employees’ self-esteem

Tools of Organizational Change Essay Example | Topics and Well Written Essays - 250 words - 1

Tools of Organizational Change - Essay Example A leader could further ensure that there is effective communication and engagement within the organization when implementing an organizational change. In order to achieve this, the leader could ensure that workers are not only aware of required changes that are happening but also understand them. A leader could further seek to engage workers in the formulation and implementation of an organizational change as this creates a positive attitude among workers (Lewis, 2011). The third component that a leader could use involves internalization of the change. This refers to the actual implementation of the change. Depending on the nature of the change, a leader could choose the appropriate channel for internalization of the change by the workers. These channels include seminars and departmental meetings. During internalization, workers review the proposed change and analyze how better it is than the old practices. This helps workers to realize the benefits of the change and propel them to work within the set rules of the proposed change (Lewis,

Bel Canto Historical Analysis Essay Example for Free

Bel Canto Historical Analysis Essay Bel Canto, the setting is reflected off of the Lima Crisis, otherwise known as the Japanese embassy hostage crisis, which began on December 17, 1996. Bel Canto is a story on the events that happen in the house of a South American country’s vice president. It portrays the relationships of the characters and their feelings toward one another as well as explains the hostage situation. In the Japanese embassy hostage crisis, similar events took place, such as the actual overtake of a mansion which contained high-ranking military officials and others of a high social standing. Both settings deal with the releasing of hostages in exchange for demands that were never met, which led to the resolution of both the Lima crisis and Patchett’s Bel Canto. Bel Canto reflects the historical Japanese embassy hostage crisis, although Bel Canto has a third person omniscient point of view of the occurrences on the inside of the mansion. Bel Canto imitates the incidences of the Japanese embassy hostage crisis. The Japanese embassy hostage crisis was a 126 day hostage crisis where members of a revolutionary movement known as the Tupac Amaru Revolutionary Movement had taken over 600 hostages, a decent amount of which were high ranked military officials and other well-known ambassadors. The MRTA, led by Nestor Cerpa, took over the highly fortified residence of the Japanese ambassador. Cerpa proclaimed that he would release any of his hostages who weren’t involved with the Peruvian government, and they did so. The MRTA eventually release all the captives except 72 men. The original plan of this takeover was to change the ways of the government. In Bel Canto, although the terrorists originally came to take the president, they were a rebellious group from the country and wanted changes in the government. The rebels demanded a few things in return for the safety of the hostages. They requested â€Å"The release of their members from prison; a revision of the government’s neoliberal free market reforms, and they protested against the cruel and inhumane conditions of Peru’s jails† (Japanese embassy hostage crisis). In Bel Canto, the rebels have demands as well: The terrorists having no chance to get what they came for, decided to take something else instead, something they never in their lives knew they wanted until they crouched in the low, dark shaft of the air-conditioning vents: opera. They decided to take that very thing for which Mr. Hosakawa lived. (71). Both terrorists wanted demands out of their seizures of the mansions. In both Bel Canto and in the Japanese crisis, a Red Cross official was the ‘negotiator. He attempted to setup a barter system to which the terrorists would get supplies so long as they give hostages back in return. In the Japanese crisis, Luis Cipriani had worked on getting a deal that would allow the terrorists to be let go into Cuba as exiles. This negotiation failed, as did some of the consultations from Bel Canto. Messner, the negotiator, attempts to make several negotiations with the terrorists, throughout the novel. Although both mediators do try to work th e situations out with the rebels, they are not able to meet the standards of the negotiations. In the end of both Bel Canto and the Japanese embassy hostage crisis, the terrorists were killed. They were not done in the same fashion, although the hostages were saved. In Bel Canto, the terrorists allow the hostages to be outside, and one day while they are together, a group of government troops come and shoot all the insurgents, as well as Hosokawa. In the Japanese crisis, a military assault overwhelmed the rebels and forced them to either surrender or be shot and killed. Bel Canto is very much reflected upon the happenings of the Japanese embassy hostage crisis. The similarities of the negotiations between the outside world and the mansions, the motives for invasion, and the format of how the situations end are all closely related. The book may not have total accuracy of the Lima crisis, although the internal view of the occurrences in the mansion provide a different side of the hostage situation. Works Cited Japanese embassy hostage crisis. Wikipedia. Wikipedia. Web. 23 Jan. 2013. . Patchett, Ann. Bel Canto. 2005 ed. New York: HarperCollins, 2001. Print.

Misconception of African Americans Essay Example for Free

Misconception of African Americans Essay Since the beginning of time African Americans have been viewed negatively. We have always been viewed as a threat to society and frowned upon by many races. There are many cliches displayed in the media of what African Americans are supposed to act like. These conclusions cause almost immediate negative feelings from other races and sometimes by our own race. African American females in television shows and movies are often shown as the loud â€Å"ghetto† acting, angry black girl who is always â€Å"telling someone off†. Actor Tyler Perry has been criticized for illustrating African American females as â€Å"big momma†, another negative portrayal of black women. Other times shapely video vixens cause other black females to be portrayed as â€Å"jump-offs† or gold diggers. African American males have even greater judgments to overcome. They are viewed as a menace to society. They are illustrated as wild, angry, dangerous â€Å"gang bangers†. Black men are viewed as absentee fathers or abusive husbands. Although, in some cases, African American males do possess some of these characteristics, there are just as many black men that are positive role models. These ignorant judgments are called stereotypes. A stereotype is defined as â€Å"a widely held but fixed and oversimplified image or idea of a particular type of person or thing†. Stereotypes, in my own words, are judgments blindly made by people who use ignorance as an excuse to be biased against those who are different from them. There are many different types of stereotyping. Racial stereotyping, sexist stereotyping, stereotypes about cultures, and sexual orientation stereotypes are all judgments that can affect one’s life in many ways. Stereotypes are, sadly, made by everyone. Racial stereotyping, however, is the most common type of stereotyping, and can sometimes be dangerous. The Trayvon Martin story, for example, is a situation where stereotyping turned tragic. Trayvon Martin was a young African American boy who was walking from the store with nothing but Skittles and a drink in his pockets. Because of his race, and the stereotype of what black Males are capable of, he was targeted, and tragically killed. There have been many similar cases of dangerous stereotyping. People’s fear of what the media shows we are suited to do, has gotten out of control. Too many of us are dying because of this fear. While many stereotypes do seem to be believable, people like Barack Obama, Michelle Obama, my grandparents, and my mom allow me to realize that not all stereotypes are true.

Unexpected Halide Transfer: Aluminium and the Lanthanoids

Unexpected Halide Transfer: Aluminium and the Lanthanoids Unexpected Halide Transfer: Complex Reorganisation Between Aluminium and the Lanthanoids. Glen B. Deacon, David J. Evans and Peter C. Junk.* This submission was created using the RSC Communication Template (DO NOT DELETE THIS TEXT) (LINE INCLUDED FOR SPACING ONLY DO NOT DELETE THIS TEXT) [Pr(MeCN)9][AlCl4]3.MeCN undergoes reorganisation upon the addition of an ether. In the case of recrystallisation from tetrahydrofuran, the ionic nature is lost, whereas the addition of crown ether gives reorganisation, whilst maintaining ionic character. Isolation of homoleptic ionic trivalent lanthanoid complexes, under non aqueous conditions, has been investigated using nitrogen based ligand systems 1-5. The interest surrounding these homoleptic complexes is attributed to their potential catalytic properties 3,5. Under non aqueous conditions, the use of highly labile ligands, such as solvent molecules, presents the possibility of exposing the metal centre, hence providing a site for catalysis and thus can be considered to be ‘near naked 3. Complexes involving Ln3+ ions, that can be considered ‘near naked’ have to date been restricted to complexes such as [Ln(MeCN)n]3+ , with anions such as AsF6 and AlCl4 3-5. With this in mind, we have investigated the ability to access homoleptic ‘near naked’ Ln3+ complexes with tetrahydrofuran (thf) ligands. Currently, no such complexes have been reported for the smaller trivalent species unlike the larger divalent species, for which there is precedent viz. [Sm(thf)7][BPh4]2 6. Exploitation of the coordination abilities of crown ether has been investigated with the isolation of [ScCl2(18-crown-6)][FeCl4]. Via Sc n.m.r it has been shown that [ScCl(thf)(18-crown-6)][FeCl4]2 and then subsequently [Sc(thf)2(18-crown-6)][FeCl4]3 can be synthesised even though it has not been structurally characterised. With this in mind it should therefore be possible to isolate similar adducts in MeCN. Results and Discussion Homoleptic acetonitrile Ln3+ complexes can be obtained via two pathways viz equations 1 and 2 3. It was our intention to extend this chemistry to involve homoleptic Ln3+ complexes with ether ligands in place of MeCN. In reactions analogous to equations 1 and 2 with thf in place of MeCN, we found to our surprise [LnCl3(thf)2]n (Ln = Pr, Nd) was the sole Ln complex isolatable. This suggests that the complex is formed by a concerted process whereby AlCl4 binds to Ln3+ releasing AlCl3, allowing binding of another AlCl4 and so on until complete halide transfer to Ln3+ occurs yielding LnCl3(thf)n (equations 3, 4). Similarly, addition of 18-crown-6 to [Pr(MeCN)9][AlCl4]3 resulted in reorganisation to [(PrCl(à ¯Ã‚ Ã‚ ­Ã¢â‚¬â€œCl)(18-crown-6))2][AlCl4]2.2(MeCN) (1) † . Isolation of 1 illustrates there is an equilibrium in solution involving [Pr(MeCN)9][AlCl4]3.(MeCN). Conductivity measurements show a 1:3 electrolyte 7.This is in contrast to that previously reported for the Sm complex by Hu and supported by Bà ¼nzli for which a 1:2 is electrolyte is reported 4,8. We believe that the complex [Ln(MeCN)9][AlCl4]3.(MeCN) undergoes rearrangement in solution ranging from a 1:3 down to a 1:2 electrolyte (equation 5). This change in coordination environment of the lanthanoid metal establishes the pathway to halide transfer involving a transient species related to that shown in Figure 1. Structural motifs similar to this have been observed for several lanthanoid complexes including [Sm(ÃŽÂ ®6-C6Me6)(AlCl4)3] .toluene 9,10. The reaction is completed by the substitution of MeCN by the crown ether and cleavage of the bridging Al–Cl bonds in a similar fashion to that observed for reactions involving thf. Complex 1 has a nine coordinate Pr centre that is bound to all six oxygens of the crown ether. The Pr is also bound to one terminal and a bridging chloride, and dimerises through an inversion centre. There is a distinct change in bond lengths between the terminal (Pr-Clter 2.715(2)Ã…) and bridging chlorides (Pr-Clbr 2.839(2) and 2.858(2)Ã…) as would be expected with similar changes identified in [PrCl(à ¯Ã‚ Ã‚ ­-Cl)(tetraethyleneglycol)]2 11. The distances for Pr-Ocrown range from 2.572(4) 2.590(7)Ã…, following the same trends in the related cation [(DyCl(à ¯Ã‚ Ã‚ ­Ã¢â‚¬â€œCl)(dibenzo18-crown-6))2][(DyCl3(à ¯Ã‚ Ã‚ ­Ã¢â‚¬â€œCl)(MeCN))2] 12, albeit with a lengthening of Ln-O in line with increased ionic radius between Dy and Pr. The crown ethers adopt a saddle type morphology with the metal residing in almost the centre of the cavity made by the O1, O3, O4, O6 (0.601Ã…) plane and the O2, O5 (0.491Ã…) plane. The crown ether collapses to accommodate the smaller size of the Pr3+ which is evident in the planes derived by the oxygen atoms of the crown. The angle between plane 1 (O1, O2, O5, O6) and plane 2 (O2, O3, O4, O5) is 125.71o showing this slight closure to ensure that the oxygen atoms are all bound. This closure of the crown ether is observed for all the Ln3+ 18-crown-6 complexes in which the angle closes from 129.74o in complex [LaCl3(18-crown-6)] 13 through to 68.95o in [Lu(CH2(SiCH3))2(18-crown-6)][(CH2(SiCH3))B(C6H5)3].C2H4Cl2 14 owing to the reduction in size of the ionic radius of the Ln centre. Notes and references All reactions were carried out under dry nitrogen using dry box and standard Schlenk techniques. Solvents were dried by distillation from sodium wire/benzophenone (thf) or CaH/P2O5 (MeCN). IR and far IR data were obtained as described previously 15. Metal analyses were carried out by complexiometric EDTA titration with the addition of 5% sulphosalicylic acid to mask Al 16. Anhydrous AlCl3, LnCl3, and 18-crown-6 were supplied by Sigma Aldrich. AlCl3 was freshly sublimed prior to use. Conductivity measurements were carried out on a Crison Conductimeter 522 (serial no; 3807), using a locally manufactured air-sensitive cell. The complex [Pr(MeCN)9] [AlCl4]3 was made using previous published methods 3 and conductivity measurements were carried out as mentioned above (367.97 S cm2 mol-1 1.097 x 10-3 mol dm-3, MeCN). 1: Method A: [Pr(MeCN)9][AlCl4]3. MeCN (0.20g, 0.19 mmol) and 18-crown-6 (0.20g, 0.57 mmol), was dissolved in MeCN (30 ml). The solution was stirred and heated to near boiling to assist dissolution. The resulting green solution was then filtered and reduced in-vacuo. The solution was then cooled at -30oC yielding small green crystals. (0.21 g (81%)). m.p. 170oC(dec), C28H54Al2Cl12N2O12Pr2; calcd. Pr 10.27; found Pr 10.68%. I.r absorption (Nujol): cm-1. Unit cell collection confirms the same product as via method A. Method B: A mixture of PrCl3 (0.10 g, 0.40 mmol), AlCl3 (0.16 g, 1.20 mmol) and 18-crown-6 (0.29g, 0.83 mmol), was dissolved in MeCN (30 ml). The solution was stirred and heated to near boiling to assist dissolution. The resulting green solution was then filtered and reduced in-vacuo. The solution was then cooled at -30oC yielding small green crystals. (0.44 g (87%)). m.p. 170oC(dec), C28H54Al2Cl12N2O12Pr2; calcd. Pr 10.27; found Pr 10.42% I.r absorption (Nujol): 2291w, 2253s, 1644w, 1353s, 1291s, 1248s, 1082s, 1034s, 966s, 925w, 878w, 837s, 802w cm-1. 27Al nmr: 104 ppm(AlCl4) † X-ray data for complex 1 was collected on a Nonius Kappa CCD, MoKà ¯Ã‚ Ã‚ ¡ radiation,à ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã‚ Ã‚ ¬ = 0.71073 Ã…, T = 123(2)K. The structure was solved and refined using the programs SHELXS-97 17 and SHELXL-97 18 respectively. The program X-Seed 19 was used as an interface to the SHELX programs, and to prepare the figures. 1: [(Pr(Cl2)(C12H24O6))2][AlCl4]2.2(C2H3N): C28H54Al2Cl12N2O12Pr2, M = 1371.91, green prismatic, 0.40 à ¯Ã¢â‚¬Å¡Ã‚ ´ 0.40 à ¯Ã¢â‚¬Å¡Ã‚ ´ 0.30 mm, monoclinic, space group P21/n (No. 14), a = 12.377(3), b = 15.356(3), c = 14.387(3) Ã…,à ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã‚ Ã‚ ¢ = 107.97(3) °, V = 2601.0(9) Ã…3, Z = 2, Dc = 1.752 g/cm3, F000 = 1360, Nonius Kappa CCD, MoKà ¯Ã‚ Ã‚ ¡ radiation,à ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã‚ Ã‚ ¬ = 0.71073 Ã…, T = 123(2)K, 2à ¯Ã‚ Ã‚ ±max = 56.6 º, 20600 reflections collected, 6215 unique (Rint = 0.0864). Final GooF = 1.022, R1 = 0.0478, wR2 = 0.1052, R indices based on 4182 reflections with I >2sigma(I) (refinement on F2), 263 parameters, 0 restraints. Lp and absorption corrections applied,à ¯Ã¢â€š ¬Ã‚  Ãƒ ¯Ã‚ Ã‚ ­ = 2.551 mm-1. Fig. 2 The structure of the cation [{PrCl(à ¯Ã‚ Ã‚ ­-Cl)(18C6)}2]2+. Hydrogen atoms omitted for clarity. Thermal ellipsoids shown at 35%. Coordination environment of the atom Pr(1) with applicable bond lengths (Ã…) and angles(o). Symmetry transformations used to generate equivalent atoms: -x+1,-y+1,-z+1. Pr(1) O(1), O(2), O(3), O(4), O(5), O(6), Cl(1), Cl(2), Cl(2), 2.572(4), 2.579(4), 2.574(3), 2.590(4), 2.588(4), 2.587(6), 2.715(2), 2.839(2), 2.858(2). Cl(1)-Pr(1)-Cl(2), Cl(2), 144.30(4), 143.18(4), Cl(2) Pr Cl(2),72.52(4). Fig.1 Proposed cation structure observed prior to ether coordination and subsequent cleavage of Al– Cl bonds. 1Evans, W. J.; Rabe, G. W.; Ziller, J. W. Inorg. Chem 1994, 33, 3072-3078. 2Willey, G. R.; Aris, D. R.; Errington, W. Inorg. Chim. Acta 2001, 318, 97-102. 3Deacon, G. B.; Gortler, B.; Junk, P. C.; Lork, E.; Mews, R.; Petersen, J.; Zemva, B. J. Chem. Soc.-Dalton Trans 1998, 3887-3891. 4Hu, J.-Y.; Shen, Q.; Jin, Z.-S. 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