Wednesday, January 29, 2020

Dental Amalgam and the Risks Essay Example for Free

Dental Amalgam and the Risks Essay What is amalgam? Amalgam is a combination of metals that has been used in dentistry for more than 100 years. It is still commonly used today. Although it sometimes is called silver amalgam, amalgam actually consists of a combination of metals. These include silver, mercury, tin and copper. Small amounts of zinc, indium or palladium also may be used. How safe is amalgam? Many studies on the safety of amalgam fillings have been done. In 2009, the U.S. Food and Drug Administration (FDA) evaluated this research. It found no reason to limit the use of amalgam. The FDA concluded that amalgam fillings are safe for adults and children ages 6 and above. Why is mercury used in amalgam? Mercury is used in amalgam because it helps make the filling material pliable. When it is mixed with an alloy powder, it creates a compound that is soft enough to mix and press into the tooth. But it also hardens quickly and can withstand the forces of biting and chewing. Why the concern about mercury in amalgam? Everyone is exposed to mercury through air, drinking water, soil and food. Concerns have been raised, for instance, about the amount of mercury building up in fish as a result of pollution. Mercury enters the air from industries that burn mercury-containing fuels. Mercury from all sources can build up in body organs. As with most substances, the degree of harm caused by mercury in the body is related to the amount. Very low levels dont cause any ill effects. At higher levels — for instance, when workers are exposed to mercury through their jobs — mercury can cause several symptoms. These include anxiety, irritability, memory loss, headaches and fatigue. Studies have shown that the amount of mercury you are exposed to from your fillings is less than the amount that most people are exposed to in their daily environment or in the food they eat. Do some people have reactions to amalgam? In rare cases, people have allergic reactions to the mercury in amalgam. The American Dental Association says that fewer than 100 cases of this type of allergy have ever been reported. People allergic to amalgam can receive other filling materials. Should pregnant women be concerned about amalgam feelings? Research has not shown any health effects from amalgam fillings in pregnant women. However, mercury can cross the placenta. In general, dentists advise pregnant women to avoid unnecessary dental care. Women should not get amalgam fillings during pregnancy. Dentists can suggest other materials for any pregnant woman who needs a cavity filled. If amalgam is safe, why does my dentist take precautions when handling it? Because dentists work with mercury almost every day, they must take safety precautions. Without protection, dentists can inhale mercury vapors. Over time, this exposure can produce symptoms of mercury toxicity. How is dental amalgam made? To make dental amalgam, dentists mix liquid mercury with a powder containing silver, tin and other metals. Dentists buy special capsules that contain the powder and the liquid mercury, separated by a membrane. They use special machinery to puncture the membrane and mix the amalgam while it is still in the capsule. Once mixing is complete, the capsule is opened. By the time the amalgam is placed in your tooth, the mercury has formed a compound with the other metals. It is no longer toxic.

Monday, January 27, 2020

Compare And Contast Of Festival Between Bangladesh Tourism Essay

Compare And Contast Of Festival Between Bangladesh Tourism Essay Festival is an event that generally staged by a local community. There is a lot of festival in the world. There are many different festivals and also there are many similar festivals in the world. All of the country has different festival and they observe in different ways. There are many kinds of festival in the world. Historical festival, Social festival. Arts festival, New Year festival, cultural festival, film festival. Music festival. Food festival, folk festival etc. 2. Etymology of festivals: the word festival comes from English word fest, French word festivals, Latin word festivals. After 1580 it was recoded as noun. Before it was used as adjective. In this time it the word feste come form Middle English, from middle French, from Latin. 3. Countries of choice: to compare and contest of festival I have chosen two countries. Among these countries there are many festival observed every year. From these I have chosen two festivals to compare and contest. 5.1 Caribana festival in Canada: Caribana festivals come from Caribbean culture and history which is held in the summer across the city of Toronto, Ontario in Canada. Every year hundreds of thousand visitors from around the world the world come to the Torontos lakeshore. It is the largest festival in the North America. It takes place about three weeks. In this time there held a different kind of event take place. Music festive, folk festive, and many others takes place there in the festival. 5.2 History of caribana festival of Canada: caribana was annually observed from 1967 in Toronto. It is a gift from West Indian community of canards. In the before years the main festival events organised by a nonprofits organisation of Toronto which name was Caribbean cultural committee (CCC). It was establish by the Caribbean organiser living in Canada. In 2006 this origination fall in financial crisis so they fail to arrange this festival at the end Toronto government give financial aid to run this festival from this it named Toronto Caribbean carnival (caribana) festival. 5.3 Events of caribana festival of Canada: the festival start with a massive parade. It took place in the first weekend of August. In this time a dancer called mas player along with live caribana music start from big speakers from 18 wheeler trucks. Calypso Tents Music Series is one of the most attractive events. Story telling is favourite event of this function. Art exhibition held in Royal Ontario museum on July 23 August 15th. Hundred of works shone there. Mainly African-Canadian artists work. Scotia bank Caribana Gala takes place in liberty Grand on July 23rd. an event of arts and festival. King and queen show is another important event of the caribana festival. It held on July 29th in the Lamport Stadium. Another thrilling event is Pan Alive. In this event musical event are shown held on July 30t h. caribana food festival is an exciting new event takes place in the Ontario place on August 1st . There is another programme held in the Ontatia place which is De Scotia bank cariban a Lime where you can take food, watch dance and enjoy live music at the same time. 6.1 Poyela Boishak festival of Bangladesh: poyela boishak is the first day of Bangla calendar. This calendar is followed by the Bangladesh, Assam, west Bangla, and Tripura. This festival is celebrated 14 April of every year. Main festival held in Dhaka the capital city of Bangladesh. About one million people attend this programme. In this day all stage of people attend this festival. In this day Dhaka become festival looks. All roads become colourful. People were colourful dresses in these days. Various types of placates, banners, festoon and many kind of colourful toron are displayed. Government declare holiday in this day. In this day different cultural programme are arranged. A lot of processions are getting out in this day. In this day a lot of fair arranged across the country. 6.2 History of poyela boishak: Hindu Vedic solar calendar is nearly to the Bangla calendar. The Bangla year commences in mid-April of the Gregorian year. At time of moghals period calendar are count for harvest with hijri year. But farmer cannot count this time. Thats why Emperor Akbar ordered to reform the calendar. After this order the famous astronomer Fatehullah Shirazi reformed the Bangla New Year based on Hijri Hindu solar calendars. This New Year (fasli san) thats mean agricultural year first introduce in the 10/11 march on 1584. In this time landlords are arranged different kinds of fair to celebrate this day. In this day Bangali traders open new account book called halkhata in this day traders finish all due with his customers and give them especial sweet. . 6.3 Celebration of poyela boishak: This day are celebrating two ways in the country. One in rural area and another is cities area. In rural area people were new cloths and they keep their home net and clean. In the cities people celebrate this day difference way from rural area. In the cities people observed this day by elaborate programme, Especially in Dhaka. Various kinds of agricultural products, cosmetics, toys, traditional food are sold in the boshakhi fair. This fair provides entertainment, by staging jatra (traditional plays), jari gan, sari gan, murshidi song, bual, arfoti song. Many stage dramas are shone in this day especially Yusuf-Zulekha Radhe- kisno. Events, kite flying in the Dhaka, in the village games are bullfights, flying pigeons, boat racing. In the cities people get up in the morning and ware especial cloths, young women were white saris with read edge, ful(flowers) of their head and, Man were Panjabi(shirt) and lungi (long skirt). In the morning Cities people eat pant-bath (rich with water) with fried hilsha fish. A lot of people gather under the banyan tree at Ramna Park. In this place famous song à  Ã‚ ¦Ã‚ Ãƒ  Ã‚ ¦Ã‚ ¸Ãƒ  Ã¢â‚¬ ¹, à  Ã‚ ¦Ã‚ ¹Ãƒ  Ã¢â‚¬ ¡ à  Ã‚ ¦Ã‚ ¬Ãƒ  Ã‹â€ Ãƒ  Ã‚ ¦Ã‚ ¶Ãƒ  Ã‚ ¦Ã‚ ¾Ãƒ  Ã‚ ¦-, à  Ã‚ ¦Ã‚ Ãƒ  Ã‚ ¦Ã‚ ¸Ãƒ  Ã¢â‚¬ ¹ à  Ã‚ ¦Ã‚ Ãƒ  Ã‚ ¦Ã‚ ¸Ãƒ  Ã¢â‚¬ ¹ (come, o boishakh, come, come) sing to welcoming New Year. Social cultural organization take out procession and parade around the town, university of Dhaka also take out another procession into the campus, news paper give out especial addition, radio, television broadcast live this function. . 7. Significance: now I will describe about the significance of these festival. 7.1 Significance of caribana festival of Canada: caribana is great festival for the Canada, by this festival Toronto get especial definition because a lot of people around the world come to attend this festival thats why it become familiar to all over the world. This festival is held not only Toronto but also Ontario, province, caribana, festival are also celebrate in the America. Immigrants from Trinidad and Tobago introduced this caribana festival. Now it is the third biggest Caribbean festival in the world. 7.2 Significance of poyela boishak: poyela boishak is now recognized as multicultural because many people around the world attend this programme. In this day all Bengali around the world together celebrated this programme thats why it become famous in the subcontinent, in the subcontinent about 30 core people speak in Bengali so poyela boishak is always a model festival for these huge amount of people. 8. Conclusion: festival is always important for every country, It familiar one countries culture and tradition to the worlds. In the festival people get recreation, there are different types of festival in Canada and Bangladesh. And there is also difference celebrating ways but both countries enjoy this festival with great festive look.

Tuesday, January 21, 2020

Criticism Essay -- essays research papers

Criticism   Ã‚  Ã‚  Ã‚  Ã‚  Criticism can be negative or positive; the way it is said may be good or bad. Why do most of us want to avoid giving or receiving criticism? The purpose of criticism is to encourage positive outcomes (what the giver wants). Ideally, it brings balance into our lives, provides us with a basis of comparison, and brings truth, honesty, and intimacy. Hopefully, it gives us honest feedback—a balance of praise and criticism. Do most of us want to know how we are doing?   Ã‚  Ã‚  Ã‚  Ã‚  Why do successful business people actually seek out criticism from people they respect? Why do people feel they are unfairly criticized? Are tone of voice, choice of words important? What communication skills does one need to criticize well? Why do those who are criticized act defensively? Can one be defensive and actually hear what is being said?   Ã‚  Ã‚  Ã‚  Ã‚  RECEIVING CRITICISM:   Ã‚  Ã‚  Ã‚  Ã‚  Is this a great source of stress? Have the past criticisms from parents, teachers, and other made us into the person we are today? The receiver must try must try to personalize the criticism and view it as information worthy of examination (either to accept or reject). Often we associate the one criticizing us with hostile bosses or other in the past.   Ã‚  Ã‚  Ã‚  Ã‚  Is the criticism valid? What is the intention? What action is needed to be taken?   Ã‚  Ã‚  Ã‚  Ã‚  What is the worst part of receiving criticism? (Loss of control, emotional involvement, etc.). How do we normally react? (Defensive, stop listening, cry argue, blame others, feel rejected) How can we reduce the stress? (Perhaps see criticism as just information). Do we normally ask several questions: is it â€Å"legitimate†? Does the person have a right to criticize us (neighbor, parent, and spouse, boss)? What is the intention—blame me, embarrass me, destroy me? What words set us off in anger—name used, should have, must have, always, never, but†¦   Ã‚  Ã‚  Ã‚  Ã‚  Does the criticism tell you what is wrong and what is expected in the future? Is the information correct?   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"No one can make you feel inferior without your consent.† Need to deal with criticism correctly: ask question to understand exactly what the person means, find out the intention of the person means, how one rectifies th... ...make you feel inferior without your consent.† We often carry on an internal dialogue with ourselves in which we criticize ourselves. Self-criticism is the most popular form of criticism. We focus on negative aspects of behavior, instead of evaluating ourselves both positively and negatively. One needs touse self-criticism to inspire oneself to new heights, not to lows. Often we defeat ourselves by focusing on criticism rather than a remedy. We are usually too general: â€Å" I made a mess of everything.†   Ã‚  Ã‚  Ã‚  Ã‚  Make Criticism into a Positive Force   Ã‚  Ã‚  Ã‚  Ã‚  Criticism is a vital part of our lives. If used well, it can empower us; if used badly, it can destroy careers, relationships, and destroy self-confidence. Key questions to ask: Is the person giving criticism off limits? Does it have value? Does it call for a specific action? It is worse to get no criticism than to receive it. When criticizing others, remind the person you are not personally criticizing others him/her but a specific action. Avoid criticizing in front of others. Maintain the other person’s self-esteem—don’t destroy them. Criticism is a commutation tool to bring about change.

Saturday, January 18, 2020

Birthday party planning Essay

To be able to have the entire event completed, I should be able to give a strong impulsive attitude in knowing the different issues that needs consideration in the occasion. These considerations include the wants and needs of the celebrant and the guests who are to be involved in the occasion. It could be observed that through the familiarity that I would have on the personality and the needs as well as the wants of both the celebrant and the guests invited shall help me in becoming highly acquainted within the system of celebration that needs to be processed in arrangement. More than this, knowing the celebrant had been a huge advantage on my part. It could be noted that our friendship has particularly made the process of knowing what he wants made it much easier for me to take the necessary steps to be able to come up with the right theme that fits his personality and would likely make the process more personal for the celebrant and his guests. My interest in the occasion as well made the process of preparing and completing the entire program much easier to bear with. Most likely, this made the process of coming up with the actual plan much effective for application. Considerably, the enjoyment that I felt in preparing the occasion’s plan contributed to the success that I have made in the completion of the said party. The involvement of Jerry’s girlfriend in the planning scheme actually helped ease the process of completing the occasion’s finalization. Her suggestions and the ideas that she has along with my thoughts about the theme of the party went side by side in making the whole occasion strongly manageable and enjoyable. Because of the age of the celebrant, a â€Å"kiddie theme† of birthday party is surely inappropriate. Likely, harmonizing the party celebration’s theme with the age and personality of the celebrant is indeed an important aspect of planning. PERSONAL ESSAY Being personally attached to the celebrant both played as an advantage and as a disadvantage on my part as the planner. During the process, it could be observed that being attached to the celebrant made it easier for me to know what he wants, however, it also made me much concerned if he would approve of the theme of party that I may have planned to present to him and his girlfriend at first. However, accessing the said advantage on my part at best way that it could benefit my planning of the occasion made me more aware on the particular needs of the celebrant thus resulting to a more personally enjoyable party. Most likely, I consider this project as a primary basis of my becoming a more developed planner as well as a more professional events handler. I have learned much too from this particular occasion. One particular learning is that of the main concern of the every occasion whether may it be a birthday or any other parties is that it should not be overdone or lightly treated to be successful. In terms of values and morale, the parties should be well guarded from any particular misbehavior of any of the guests that may cause commotion during the entire occasion’s completion. Considerably, the process of planning the said party involved so many considerations on the personality of the celebrant and the people that were supposed to be invited during the occasion. Knowing what the said group of people wanted primarily helped during the process of formulating the whole approach to the party. Efficiency of planning actually made the entire approach to the party process much successful. Having been organized in everything else that concerned the entire occasion’s final completion was an essential primary process for the success of the entire birthday celebration. Fine oversight of a social gathering includes its planning and preparation. This does not require devising a catchy theme to make it unique or memorable, but it surely must be something that characterizes the one to whom the celebration is dedicated to. One more vital learning that I have garnered from planning this occasion is that it makes sense to invite only as many of your friends as can be supervised properly. Smaller gatherings are less likely to turn into â€Å"revelries,† or â€Å"wild parties. † This would make the entire occasion much meaningful and worth remembering for the celebrant. This way, the people invited are sure to have an enjoyment on the most common things that they share for entertainment thus making the whole planning of the party much easier to deal with. What are some things you can do at a gathering—besides simply watching TV, listening to music, or conversing? Likely, these questions were considerably answered as we tried to know how the celebrant would likely want the party to be completed. It was not simply about the fun or the enjoyment, it was something that needs to have been considered through understanding what the celebrant and his friends needed to be able to remember the entire party as a huge part of their personal advancement and their friendship’s stronger ties later on. Catering to the needs of more than just the celebrants had actually taught me the importance of being flexible and resourceful in handling the demands of each guest and the ones involved in parties. Likely, this learning could be applied to any other occasion that needs to be dealt with in planning later on. Planning the said party involved so much help as well from all the other guests who were highly concerned in the success of the occasion. This made me realize that asking the people concerned in the parties is a certainly helpful process for the success of any occasion’s planning process. Having them help in the process of getting all the necessary informations needed for the completion of the plan surely makes the process much manageable and applicable for celebration. This also made the occasion much personal and meaningful for the people who were invited and the person being celebrated in particular. Having an assistance from the people concerned in the occasion actually helped so much in gaining a considerably dine outcome of the party.

Monday, January 13, 2020

Electronic Health Records Essay

Introduction Electronic health records (also known as ‘e-notes’) have commonly replaced the conventional paper records used in medical facilities. This discussion describes how electronic health records have provided a solution to a range of health care procedures, have offered cost savings and benefits, and still have greater potential for improvement through future efforts. Overall, this discussion documents the progress and demands for further convenience in regards to electronic health records, presenting concepts, statistics, and recent analyses published by authorities on the topic. Through this, it is evident that electronic health notes still have shortcomings that are commonly noted and targeted, but as they have solved many more problems inherent in previous systems, they are the ideal path for development and improvement in this area. Electronic Health Records Since the development of electronic health records, healthcare managers have been able to reach numerous solutions to previous problems in their systems; this has included improved capacities to record and store the clinical and demographic information patients, the capacity to observe or manage the results of laboratory tests, the capacity to give prescriptions, improved ease of managing billing data, and improved facilitation of analysis for clinical decisions. These improvements reveal the nature of challenges and demands relevant to operations using the previous form of records (paper), with electronic health records being substantially more organized, convenient, and manageable. According to Al-Ubaydli (70), the use of paper records â€Å"had several implications. On the one hand, writing on paper fast and easy, so it fits well with clinical workflow. On the other hand, notes are only useful to the person who reads them, no to the one who writes them. When writing, speed and brevity are essential as there are always more patients to visit and care for. But for the reader, speed means illegible handwriting and brevity means incomplete notes. This leads clinicians to ask patients questions to which the answers already exist in the notes† (Al-Ubaydli 70). Moreover, as the author pointed out, paper is more difficult to transfer or copy, leading to it ultimately becoming easiest to keep the records confined to one central place. With this, they cannot move as easily as the patient, and the chore of copying tended to result in the patients being without a complete set of easily accessible records. Meanwhile, there are substantial space and cost requirements associated with storing paper records. The development of computer hardware, software, and improved data storage techniques eventually led to the development of efficient and effective software capable of storing patient data in secure databases, further allowing all data to be stored in a size-efficient manner that could also be easily transmitted. With the development of the internet, patient files could even be stored and transmitted online, providing an ideal backup for databases while improving the capacity for patients to have complete record sets sent to a range of facilities. The general motivation for creating these electronic health records was to address the problems inherent in the paper records, with the most convenient aspect being the cost-effective nature of storage and transmission; the nature of this being a virtually free cost and nearly instantaneous transmission made the desire and changes especially significant. Moreover, electronic health records would allow users to improve the capacity for users to index, sort, and search through records faster than the time demanded to sort through the paper files manually (Al-Ubaydli 70). An additional benefit is the reduced potential for illegible notes, as the nature of the systems means that all data is entered in using clear computerized text characters. As mentioned, similar to the nature of demands and problems evident in the paper records, there are now demands for improving aspects of the electronic records. However, these problems can be addressed through improved organization, software, and other means that does not demand a drastic change in mediums, as was required to address the problems of the paper records. Al-Ubaydli (71) reported that electronic health records â€Å"must include checks and balances to audit and control access. Second, the user interfaces for adding to the records must become easier to that they fit better into clinical workflow and allow clinicians to do more in less time. Speech recognition continues to improve, and the designers of templates continue to innovate.† The author further points out that similar to the improved search engines of the internet (first challenging and then drastically improved with developments like Google), electronic health records can be similarly improved without restructuring comparable to restructuring paper records. Other researchers have analyzed the nature of electronic health records, further elaborating on the nature of solutions and remaining demands. DeVoe et al. (351) pointed out that the clear and detailed recording of all received and recommended services should be considered the most vital aspect of health records, which is most effectively addressed through electronic records rather than paper records. This further assists with insurance aspects, as the detailed and accurate aspects of recording services can improve coordination with claims and related demands. DeVoe et al. (352) further asserted that electronic health records have the potential to assist researchers and policy makers with overcoming prior restrictions in examining services provided in CHCs. Meanwhile, Hoffman and Podgurski (425) reported on the growth of health care and pharmaceutical costs, frequency of unnecessary medical procedures, evoked healthcare reforms, and critical roles of records in all of these processes. With this, comparative effectiveness research (CER) has commonly been coupled with electronic health records to show that many expensive procedures have had less desirable outcomes for comparable conditions that less expensive ones, pointing out the nature of some health care facilities and physicians. Meanwhile, however, some have argued that CER is likely to lead to limited patient choices, improper rationing of health care, homogenized care, and potentially refusal of needed treatments (Hoffman and Podgurski 425). Congress allocated $1.1 billion to CER through the American Reinvestment and Recovery Act, which included other aspects of improving and restructuring facilities. Soon it became evident that a unique application of CER could allow physicians to improve their decisions regarding treatment, as when coupled with electronic health records, physicians could conduct computer inquiries across a large database of patient records. Naturally, this would provide a valuable supplement to the patient’s history and literature. Hoffman and Podgurski (425) recommended that software be designed to summarize findings of queries by presenting the most relevant outcomes of patients with the most comparable conditions, while records be developed and stored in a manner which facilitates this. Thus, personalized comparison of treatment effectiveness or PCTE could become a phrase more common than CER in the future. Conclusion Electronic health care records have solved many of the problems that could not be effectively addressed through developments in the paper systems, with major improvements in the capacity to copy and transfer records, cost of storage, and clarity of information. Although this has led to implications for security and excessive copying, databases have been developed to improve the concerns in these areas. Moreover, researchers have proposed additional improvements in development as well as use, with records having the potential to serve as an informal accessible databank, thereby improving understanding and decision making. Works Cited Al-Ubaydli, Mohammad. Personal Health Records: A Guide for Clinicians. John Wiley & Sons: New York, NY, 2011. DeVoe, Jennifer, Rachel Gold, Patti McIntire, Jon Puro, and Susan Chauvie. â€Å"Electronic Health Records vs Medicaid Claims: Completeness of Diabetes Preventive Care Data in Community Health Centers.† Annals of Family Medicine 9.4 (2011): 351-358. Hoffman, Sharona and Andy Podgurski. â€Å"Improving Health Care Outcomes through Personalized Comparisons of Treatment Effectiveness Based on Electronic Health Records.† Journal of Law, Medicine & Ethics 39.3 (2011): 425-436.

Friday, January 10, 2020

Analyze of “Crimson Tide” Essay

ANALYZE OF CRIMSON TIDE In this assignment I will analyze the â€Å"Crimson Tide† based on OB topics which are organization, skills, personality, perception, values, and attitudes. First of all I would like to say something briefly about the movie. On a US nuclear missile sub, a young first officer stages a mutiny to prevent his trigger happy captain from launching his missiles before confirming his orders to do so. An organization is basically consciously coordinated social unit. There are three essentials to be an organization, -group of people -continuous or else project -common goal When we look at the Crimson Tide we can see the all three features in that submarine. First of all they are group of soldier in a nuclear submarine. Secondly, this group of people are not together but they came together to a project that U.S. Navy nuclear submarine, USS Alabama, to be available to launch its missiles in a preemptive strike if Radchenko attempts to fuel his missiles. It is enough to be an organization for a group. Thirdly, even though they use different ways, they have a common goal which is protecting their country. Most distinct skill of Captain Ramsey his experience and loyalty to the Navy. He never questions to orders. He thinks he is there to apply to the orders, sometimes impatiently, and make sure his crew’s loyalty to apply order. He does not believe to democracy in the submarine. For example he says â€Å"we are here to preserve democracy, not to practice it. Ron Hunter is a young, inexperience, and good educated man. He finished Harvard University. He is highly educated in military history and technical tactics. Hunter is more analytic and conservative towards his mission. Hunter is against the missile launch and tries to win over support from Ramsey to confirm the second message before proceeding with the launch, because he has hope that it was possibly an abjuration of the previous command. This behavior shows his humanist and rational side. Hunter plays a number of roles. He makes sure that Captain Ramsey makes the correct choices. For example, he is waiting the rest of the message to launch of the  nuclear missiles. Also he motivates his crew. Ramsey is a strict and arrogant leader who never motivates his crew, but with the influence from Hunter, Ramsey gives a motivational speech after the crew to restore all operations after the Russian attack. I will focus on Ramsey’s and Hunter’s personality, perception, values and attitudes in this part of my assignment; The Big Five Personality Model: high extraversion: overconfident, pushy low agreeableness: cold, dissident high conscientiousness: organized, stubborn high emotional stability: self-confident, calm high openness to experience: curious Attributes: Machiavellianism: practical, manipulate Self-esteem: likes himself Risk-taking: risk-taking by shooting the missiles More Type A: multitasks Less Type B: can relax without guilty (after downgrading sitting in his cabin and being calm) External locus of control: controlled by outside forces (government) Perception: Perceiver: Captain Frank Ramsey Target: Russians, Hunter Situation: Submarine†¦wants to attack Russia Errors: Halo effect: general impression by a single characteristic. Stereotyping: Harvard students are nerds and hunter is one of them without experience Values: He belongs elders generation. This generation’s characteristics are discipline, authority, traditional Hofstede’s Framework: High power distance: Captain as a authority High Individualism : Focus on his opinion High Masculinity: Doesn’t care so much about people (e.g. fire-alarm) High Uncertainty avoidance: He doesn’t like uncertainty. Wants to act quickly. For example he wants to shoot missiles Low long-term orientation: Doesn’t care about nuclear war†¦.he wants to act now High Indulgence: Submarine/Job is his second home comfortable cabin and his dog Attitudes: Job satisfaction: work place is like his home†¦.(e.g. dog) Neglect: when hunter took his authority he went to his cabin and was listening to the music like nothing happened before Affective: emotional relationship to the navy. Traditional beliefs Engagement: His speech to the soldiers at the beginning of the film. Hunter’s; Personality: The Big Five Personality Model: high extraversion: assertive, gregarious, sociable high agreeableness: cooperative, trusting, empathetic high conscientiousness: organized, persistent high emotional stability: self-confident, calm high openness to experience: flexible, curious Attributes: Machiavellianism: practical, manipulate Self-esteem: ambitious goals related to his career Self-monitoring: attention to external environment by building a relationship to the marines Risk-taking: risk-taking by downgrading Ramsey Proactive: identifies opportunities and tries to prevent nuclear war More internal locus of control: controls his destiny, independent, makes his own decisions Perception: Perceiver: Lieutenant Commander Ron Hunter Target : Ramsey Situation: Submarine†¦.wants to stop Ramsey and also nuclear war Values: He belongs Baby Boomers Generation and Its features are social recognition, responsibility Hofstede’s Framework: Middle power distance: He sees captain as an authority but he is not afraid of sending Ramsey in to jail. He also makes jokes with crew members Middle Individualism : Focus on his opinion but also take care about others opinion Low Masculinity: Takes care of people and feeling (e.g. over weight of a crew member ) Low Uncertainty avoidance: Takes the risk of not knowing what happens next. Doesn’t want to shoot missiles High long-term orientation: Afraid of nuclear war, stops Ramsey Middle Indulgence: Separates work and family. Has his family who is waiting for him but also he left the birthday of his daughter because of his job Attitudes: Job satisfaction : He is proud of to be a lieutenant Continuance: Wants to make career upgrade to a captain Engagement: Build a good relationship with the crews

Sunday, January 5, 2020

Spider Monkey Facts (Ateles)

Spider monkeys are New World monkeys belonging to the genus Ateles. They have long limbs and prehensile tails, giving them the appearance of large arboreal spiders. The name Ateles comes from the Greek word atà ©leia, which means incomplete and refers to the spider monkeys lack of thumbs. Fast Facts: Spider Monkey Scientific Name: Ateles sp.Common Name: Spider monkeyBasic Animal Group: MammalSize: 14-26 inch body; up to 35 inch tailWeight:13-24 poundsLifespan: 20-27 yearsDiet: OmnivoreHabitat: Central and South American rain forestsPopulation: DecreasingConservation Status: Vulnerable to Critically Endangered Species There are seven species and seven subspecies of spider monkey. The species are the red-faced spider monkey, white-fronted spider monkey, Peruvian spider monkey, brown (variegated) spider monkey, white-cheeked spider monkey, brown-headed spider monkey, and Geoffroys spider monkey. Spider monkeys are closely related to woolly monkeys and howler monkeys. Description Spider monkeys have extremely long limbs and prehensile tails. The tails have hairless tips and grooves resembling fingerprints. The monkeys have small heads with hairless faces and wide-set nostrils. Their hands are narrow with long, curved fingers and reduced or non-existent thumbs. Depending on the species, hair color may be white, gold, brown, or black. The hands and feet are usually black. Males tend to be slightly larger than females. Spider monkeys range from 14 to 26 inches in body length with a tail up to 35 inches in length. On average, they weigh anywhere from 13 to 24 pounds. Habitat and Distribution Spider monkeys spend their lives in trees of tropical rain forests in Central and South America. Their habitat ranges from southern Mexico to Brazil. Spider monkeys live in Central and South America. Jackhynes / Wikimedia Commons Diet Most of the spider monkeys diet consists of fruit. However, when fruit is scarce, they eat flowers, leaves, and insects. The lead female within a group organizes foraging. If food is abundant, the group feeds together, but it will split if resources are scarce. Most feeding occurs in the early morning hours, but spider monkeys feed throughout the day and sleep in trees at night. Behavior The average spider monkey group ranges from 15 to 25 individuals. The closest bonds are between females and their offspring. Males also group together. Unlike most primate species, it is the females rather than the males that disperse at puberty and join new groups. Spider monkeys are highly intelligent. They communicate using vocalizations, scent marking with urine and feces, and body postures. Reproduction and Offspring The female spider monkey selects her mate from within her social group. Gestation lasts between 226 to 232 days, usually resulting in a single offspring, but sometimes twins. The female has sole care of her young, which she carries with her as she forages. Her offspring tightly wraps its tail around its mothers midsection or tail. Spider monkeys reach sexual maturity between 4 and 5 years of age. Females only bear offspring once every three or four years. Young males sometimes commit infanticide within their group to increase their chance of mating. In the wild, spider monkeys may live 20 to 27 years.They may live over 40 years in captivity. Geoffroys spider monkey with young. Mark Newman / Getty Images Conservation Status All spider monkey populations are decreasing. The IUCN classifies the conservation status of the Guiana spider monkey (Ateles paniscus) as vulnerable. Four species are endangered. The variegated spider monkey (Ateles hybridus) and brown-headed spider monkey (Ateles fusciceps) are critically endangered. Spider Monkeys and Humans Humans are the main threat to spider monkey survival. The monkeys are widely hunted as food and suffer from habitat loss due to deforestation. Some populations live in protected areas. Spider monkeys are susceptible to malaria and are used as research animals in studies of the disease. Sources Cuarà ³n, A.D., Morales, A., Shedden, A., Rodriguez-Luna, E., de Grammont, P.C.; Cortà ©s-Ortiz, L. Ateles geoffroyi. The IUCN Red List of Threatened Species 2008: e.T2279A9387270. doi:10.2305/IUCN.UK.2008.RLTS.T2279A9387270.enGroves, C.P. in Wilson, D.E.; Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press, 2005. ISBN 0-801-88221-4.Kinzey, W. G. New world primates: ecology, evolution, and behavior. Aldine Transaction, 1997. ISBN 978-0-202-01186-8.Mittermeier, R.A. Locomotion and Posture in Ateles geoffroyi and Ateles paniscus. Folia Primatologica. 30 (3): 161–193, 1978. doi:10.1159/000155862Mittermeier, R.A., Rylands, A.B.; Boubli, J. Ateles paniscus. The IUCN Red List of Threatened Species 2019: e.T2283A17929494.

Thursday, January 2, 2020

The Compton Effect or Compton Scattering in Physics

The Compton effect (also called Compton scattering) is the result of a high-energy photon  colliding with a target, which releases loosely bound electrons from the outer shell of the atom or molecule. The scattered radiation experiences a wavelength shift that cannot be explained in terms of classical wave theory, thus lending support to Einsteins  photon theory. Probably the most important implication of the effect is that it showed light could not be fully explained according to wave phenomena.  Compton scattering is one example of a type of inelastic scattering of light by a charged particle. Nuclear scattering also occurs, although the Compton effect typically refers  to the interaction with electrons. The effect was first demonstrated in 1923 by Arthur Holly Compton (for which he received a 1927 Nobel Prize  in Physics). Comptons graduate student, Y.H. Woo, later verified the effect. How Compton Scattering Works The scattering is demonstrated is pictured in the diagram. A high-energy photon (generally X-ray or gamma-ray) collides with a target, which has loosely-bound electrons in its outer shell. The incident photon has the following energy E and linear momentum p: E hc / lambdap E / c The photon gives part of its energy to one of the almost-free electrons, in the form of kinetic energy, as expected in a particle collision. We know that total energy and linear momentum must be conserved. Analyzing these energy and momentum relationships for the photon and electron, you end up with three equations: energyx-component momentumy-component momentum ... in four variables: phi, the scattering angle of the electrontheta, the scattering angle of the photonEe, the final energy of the electronE, the final energy of the photon If we care only about the energy and direction of the photon, then the electron variables can be treated as constants, meaning that its possible to solve the system of equations. By combining these equations and using some algebraic tricks to eliminate variables, Compton arrived at the following equations (which are obviously related, since energy and wavelength are related to photons): 1 / E - 1 / E 1/( me c 2) * (1 - cos theta)lambda - lambda h/(me c) * (1 - cos theta) The value h/(me c) is called the Compton wavelength of the electron and has a value of 0.002426 nm (or 2.426 x 10-12 m). This isnt, of course, an actual wavelength, but really a proportionality constant for the wavelength shift. Why Does This Support Photons? This analysis and derivation are based on a particle perspective and the results are easy to test. Looking at the equation, it becomes clear that the entire shift can be measured purely in terms of the angle at which the photon gets scattered. Everything else on the right side of the equation is a constant. Experiments show that this is the case, giving great support to the photon interpretation of light. Edited by Anne Marie Helmenstine, Ph.D.