Horror Film and Halloween Essay Example for Free

Horror Film and Halloween Essay Halloween is the one time of year when it okay to dress up as anything you want to be and it’s also when you can be celebrating all things horror and dead. Halloween started out as the celebration of the dead but has now grown into a wonderful time of costumes and decoration of scary fictional creatures. Dressing up as a scary character or a character you adore is one of the many perks of Halloween. Going to costume parties with friends and celebrating Halloween together. Watching horror movies and television specials about Halloween is exciting and it feels like more the holiday mood. Halloween is a celebration of the horror genre, dressing up and enjoying this holiday with people. Costumes are very important when it comes to celebrating Halloween. Children enjoy going out on Halloween and trick-or-treating with their costumes to celebrate (Halloween). For an older and mature get together some adults enjoy going to costume parties with their peers. In the olden days it was typical for costumes to be scary but nowadays people tend to dress up as their favourite pop star or a favourite character from a movie. Costumes are enjoyed by many people to be something scary or someone they admire. Going to a party or throwing a party is always expected to done during Halloween. This holiday celebration is enjoyed by everyone in certain countries. Many people attend a Halloween party to enjoy the costume their friends are wearing. The snacks and drinks are shaped and decorated as creepy creatures for the effects of Halloween. Even the music is themed to make the effects to feel realistic. People are attracted to Halloween and going to parties and enjoying it with friends is one of the many perks of this holiday. Enjoying the Halloween and getting into the spirit of this holiday makes it more enjoyable. The Halloween episode of a favourite T.V. shows really adds effects to the enjoyment of the season. This celebration is mostly about the mood of being scared and watching a lot of horror movies. The media has a huge influence on Halloween from movies, television specials and even themed music. Halloween is celebrated widely in certain countries. Halloween is a wonderful and exciting celebration made up by traditions and is enjoyed in certain countries. People enjoy dressing up as a favourite fictional character or someone real like a favourite role model. Going to parties and enjoying your costumes and celebrating this holiday with your friends. Most media like T.V shows will often make special episode for Halloween. People are attracted to Halloween because it is a unique Holiday that celebrates the dead.

Post-Modern Victorian: A. S. Byatts Possession Essay examples -- essay

Post-Modern Victorian: A. S. Byatt's Possession If I had read A. S. Byatt's novel Possession without having had British Literature, a lot of the novel's meaning, analogies, and literary mystery would have been lost to me. The entire book seems one big reference back to something we've learned or read this May term. The first few lines of chapter one are poetry attributed to Randolph Henry Ash, which Byatt wrote herself. Already in those few lines I hear echoes of class, lines written in flowery Pre-Raphaelite tradition. "The serpent at its root, the fruit of gold /†¦At the old world's rim, /In the Hesperidean grove, the fruit /Glowed golden on eternal boughs, and there /The dragon Ladon crisped his jewelled (sic) crest†¦." Because of class, I was able to pick up on this poetry tradition right away. This story within a story is strengthened by Byatt's ability to write Victorians accurately. Until I read some of the reviews, I thought Byatt's Victorian characters were actual historical literary figures, when actu ally they are fictitious, and their journals, letters, and poetry are written by Byatt. The action of the book takes place in two periods. The two main characters, Roland and Maud, are literary scholars living in the 1980's. Their love story is shared and played out by the diaries, poetry, and correspondence of two poets and lovers from the 1860's-Randolph Henry Ash and Christabel LaMotte. Although the book is modern fiction, much of it is a Victorian novel as well. Possession is characteristic of Byatt's love for intertextuality and imbedded texts. Possession is also an example of several literary genres, all written into one book. At various times it gives evidence of poetry, mythology, a romance novel, a detective story, a fairy tale, journals and diaries, and scholarly writings. There are several themes in Possession that tie this book to earlier texts that we have read. Individual versus group identity, feminism, sexuality and the link between present and past are themes that Byatt deals with in her novel. Interestingly, Byatt expresses many of these themes using symbolic color imagery, a technique that makes her writing reminiscent of Pre-Raphaelite style. According to Byatt, the "struggle of the individual to discover and then live out her... ...hanged, and romance from one time to another is not so different as we thought. The characters mix the old and the new; Maud wears a brooch once belonging to Christabel, and another Ash scholar, Mortimer Cropper, carries Ash's pocket watch. In the end of the novel, the last love letter written by Christabel enables Maud to finally enjoy the value of love in the present, and give her trust to Roland. The cyclical time frame of the novel provides an interesting contrast to the normal, stifling, linear time frame of typical literature and everyday life. The way Byatt expresses many of these themes through her symbolic use of color is significant. Byatt paints with words, making her reminiscent of the Pre-Raphaelites. She gives color descriptions for her characters, painting the women such as LaMotte and Christabel in gold and green description, while persons whose characters are flat and never well-developed, such as Paola the secretary, are described in colorless terms. Paola has "long, colourless hair bound in a rubber band" huge mothlike glasses, and "dusty grey pads" for fingertips. Her lack of color sets her off from the beginning as a very flat character.

Socioecological National Smoking Strategy Australia Health And Social Care Essay

The damaging effects of smoke are good known, and go on to be one of the most evitable causes of sick wellness and decease in Australia. Smoking is a planetary wellness issue that affects all states worldwide. ( Naidoo and Wills, 2005 ) . Tobacco usage has a negative consequence on the immediate user every bit good as the other individual exposed to the fume, therefore the demand to command its usage and supply a supportive environment to enable persons to discontinue. ( Naidoo and Wills, 2005 ) . Health publicity provides a possible agency to accomplish this, as it attempts to better the wellness of persons and the community through wellness instruction, community engagement and coaction, sometimes taking to environmental and societal alteration ( Maben and Macleod, ( 1995 ) , as stated by Piper, 2009 ) . The Ottawa Charter ( WHO, 1986 ) sees wellness publicity beyond the person and the health care system, it requires a co-ordinated action between the authorities, societal and econo mic sectors. In other words, wellness publicity at one degree seeks to act upon healthy life style and better life-skills of the person, it besides ensures a corporate addition by act uponing statute law and policies towards environmental, socio-economic position, employment and occupational wellness at another degree ( Piper, 2009 ) . This paper focuses on the social-ecological theoretical account and relates it to the national baccy scheme which was introduced in Australia since 1999 to better the wellness of all Aussies by extinguishing or cut downing exposure to tobacco in all signifiers and to forestall jobs that can ensue from the usage of baccy ( The National Tobacco scheme, 1999 ) . The cardinal aims for the model was to better the control of baccy through community action, promote surcease of baccy usage, bound publicity and modulate baccy and eventually cut down environmental exposure to tobacco fume ( The National smoke Strategy 1999 ) . The debuts of the National smoke strategic model lead to the execution of smoking policies in public topographic points including the work topographic point. Smoke policy at public topographic points is intended to protect smoke and non-smoking citizens from the consequence of environmental exposure to baccy ( Bauer et al, 2005 ) and to promote tobacco users to discontin ue every bit shortly as possible. It is besides thought to cut down the injury that can be associated with go oning usage and dependance on baccy and nicotine. Smoke-free policies have been shown to deter people from smoking, cut down coffin nail ingestion, addition desire to discontinue and the likeliness of existent surcease ( Bauer et al, 2005 ) . The scheme was a comprehensive attack introduced by the authorities across all societal groups based on two warranting factors. These were that, bulk of persons who smoked were non making so based on free and informed picks. Peoples frequently say smoking is a personal life manner pick, this ignores the tobacco users apprehension of the wellness hazard, worlds of dependence and the fact that a batch of people start depending on baccy at a really immature age ( National baccy scheme, 2004 ) . The habit-forming nature of baccy compromises the person ‘s ability to do an informed pick. Second, the usage of baccy imposes a significant cost on the person, households, concerns, taxpayer and the community as a whole ( National baccy scheme, 2004 ) . Harmonizing to surveies long term tobacco users die prematurely from bosom diseases, with most of them within the ages of 50 and 60 ( National baccy scheme, 1999 ) . they may besides endure from clogging lung diseases, shot and other stultifying long term status which can cut down mobility taking to cut down quality of life ( National Tobacco Strategy, 2004 ) . Smokers besides spend a batch of money on baccy merchandises instead than they spend on goods and services which could hold been more good to them and their households. How the scheme was to be achieved The first measure was to present a comprehensive control scheme on baccy merchandises, by increasing monetary values and altering societal attitudes to baccy usage through ordinances and difficult striking runs. Government policies introduced regulated selling, publicity, gross revenues, revenue enhancement and packaging of baccy merchandises ( the national smoke scheme, 2004 ) . These ordinances made baccy merchandises less low-cost, nevertheless available to grownups who use them, but non extremely seeable and non sold to kids. It besides mandated equal and effectual consumer information on baccy merchandises in the media and at the point of sale. On the other manus, quit smoke and smoke free runs, services on handling baccy dependence schemes, community support, instruction, research, rating, monitoring and surveillance every bit good as work force development were strengthened ( the national smoke scheme, 2004 ) . They besides addressed issues around societal determiners of welln ess and trim plans towards the demands of deprived groups. This was to personalize the hazards of smoke and to increase the consciousness of effectual therapies and contact inside informations for services ( National smoke scheme, 2007 ) . The authorities policies besides ensured that all Australian tobacco users in contact with the wellness attention system were identified and advised to discontinue, and that all tobacco users probably to hold trouble retreating from tobacco-delivered nicotine have entree to back up and allow and effectual pharmacotherapy ( National smoke scheme, 2004 ) . The policies were besides aimed at attempts to forestall consumption by kids, and to guarantee that the community is intelligent about smoke. It was besides to cut down societal disaffection, which, along with many other negative effects, is associated with uptake and continuance of bad behaviors including smoke, and to put in baccy control as a cardinal scheme for forestalling and cut downing societal disadvantages in the communities ( National smoke scheme, 2004 ) . To extinguish exposure to environmental baccy fume, at work, indoors and in public topographic points ( including out-of-doorss where mobility is limited ) , and to understate it in residential establishments, the policy meant ‘no smoking ‘ ( entire prohibition ) within these premises. As countries where smoke is allowed provide small or no protection from environmental fume ( National smoke scheme, 2004 ) . Smoke free workplace policies by contrast virtually extinguish exposure to tobacco fume during working hours. They besides help tobacco users in those workplaces to cut down the sum they smoke each twenty-four hours and increased their opportunities of successfully discontinuing ( National smoke scheme, 2004 ) . Such policies dramatically affect societal norms about smoke. In legal powers which introduce smoke free Torahs, fewer kids take up smoke and Numberss of tobacco users and Numberss of coffin nails consumed decrease comparative to legal powers without such Tora hs ( National smoke scheme, 2004 ) . Social-ecological Model as a Background Model for the model The footing of this model can be construed from the social-ecological theoretical account where a alteration in the environment and policies causes a alteration in person ‘s behavior. The social-ecological theoretical account recognizes the interlacing interaction between the person and the environment ( Healthy Active Oregon, 2003 ) . It besides focuses on reorientation of organisations and policy alteration ( Elder et al, 2006 ) . It is non a individual policy or theory but a instead wide overarching construct that brings together several different Fieldss of research ( Stokols, 1996 ) . Although the person is responsible for keeping a life style that improves wellness and reduces hazard, the societal environment in which the person lives mostly determines behavior ( Healthy Active Oregon, 2003 ) . A barrier can therefore signifier in a manner that can forestall the community as a whole in accomplishing behaviour alteration ( Healthy Active Oregon, 2003 ) . Harmonizing to Winett ( 1995 ) some wellness publicity plans have non been effectual due to failure in acknowledging the consequence of environmental-related factors on health-related behavior. He hence suggests the integrating of theoretical accounts for behaviour alteration with plans affecting persons, groups, organisations, community and institutional degrees of engagement ( Winett, 1995 ) . Hence the societal ecological theoretical account suggests a more comprehensive attack of non merely the person ‘s duty of health-risks behaviours, instead it targets the single and socio-economic factors ( Piper, 2009 ) . The theoretical account is categorized into intrapersonal, interpersonal, community, organisational and public policy as schemes for advancing wellness ( McLeroy et al. , 1988 ) . Intrapersonal The intrapersonal degree of the theoretical account is based on psychological theories of alteration, where it utilizes the mass media, social-marketing, instruction and development of accomplishments to alter wellness related attitudes, addition cognition and advance ego regard ( McLeroy, 1988, Piper, 2009 ) . This degree implies that the proximal cause of behavior or mechanisms for alteration of behavior prevarications with the person and non the environment ( McLeroy, 1988 ) . And in the model this was traveling to be achieved by shiping on difficult hitting smoke free runs and ordinances which will be targeted at altering perceptual experiences and bettering cognition of the person, with the hope of giving a behaviour alteration. After the person had been made aware of the hazards and the health-related issues that occur as a consequence of smoke, it is up to them to take either to smoke or give up smoke. However at this degree there can be emotional and expressive feelings that people experience particularly in the context of wellness related behaviour alteration ( Davies and Macdowal, 2006 ) . Some persons may truly lose the wagess from smoke and the fond regards they have antecedently developed to smoking while still admiting the benefits of smoking surcease ( Davies and Macdowall, 2006 ) . There is so the feeling of ennui, defeat and choler as they loose the sense of making something and deficiency of the company, this is the point where the person is likely to get worse and travel back to smoke ( Davies and Macdowall, 2006 ) . Hence separate smoke surcease plans that acknowledges and run into the specified demands of persons should besides be developed. There is therefore the demand for services like the quit aid lines and reding installations to back up the person who wants to give up smoke. This scheme has been recognized in the model to help the person to get by. The social-ecological theoretical account identifies this and hence does non merely concentrate narrowly on the person but besides other societal factors and webs which all comes together to help the person to get by and alter behavior. Interpersonal This deals with the person ‘s societal webs such as household, friends, neighbors and contacts at work, the psychosocial theory underpins this degree. The purpose is to alter societal norms and better societal web and support ( Piper, 2005 ) . These are seen to hold direct influence on the individual. The importance of this degree is that about all behaviors happens in a societal context, and behaviors in these context tend to be accustomed, hence it takes making things otherwise to interrupt these wonts ( Davies and Macdowall, 2006 ) . Therefore the intercessions to be designed demands to change the signifier of bing societal webs ( McLeroy, 1988 ) . Particularly they should be designed to modify societal influences which are likely to back up and keep unwanted wellness related behaviors and strengthen those that influence wellness positively. ( McLeroy, 1988 ) . It besides involves learning the person on how to manage interactions with others as they continue to prosecute the ir new ways of get bying without smoking ( Davies and Macdowall, 2006 ) . Mentioning to the model it was aimed at foregrounding the consequence of baccy fume on households and besides prevented kids acquiring entree to baccy and other baccy merchandises. It besides hopes to act upon cultural, societal and economic factors that influence uptake and uninterrupted usage of baccy. Discontinuing smoke may non be an easy thing to make nevertheless with a supportive, good informed, good and strong societal web the person should be able to give up and be cognizant of how and where to seek aid. Community A community is said to be intelligent when it has equal information to be able to do an informed determination on baccy usage ( National baccy Strategy, 1999 ) . In the community, information such as how to acquire aid and quit, the difference between the usage of baccy and dependence, the consequence of baccy fume on the environment, the benefits of discontinuing at any age and sooner than latter and on a whole, the consequence of baccy on the society should be easy accessible ( National Tobacco Strategy, 1999 ) . It is a good known fact that information entirely does non take to behaviour alteration by persons in the community ( National Tobacco Strategy, 1999 ) , otherwise 22 % of the Australian population will non go on to smoke regardless of the sum of information available on the hurtful consequence of smoke ( Egger et al,2005 ) . For communities to derive control over baccy use the scheme was focused on planning and execution of community based programmes for commanding baccy, by supplying equal resources for a scope of smoking surcease services in the communities. Local powers such as Community leaders, parents, schools and young person organisations are all motivated to acquire involved ( National Tobacco Strategy, 1999 ) . Health publicity at this degree is about authorising the community through community development, alliance and conflict direction schemes ( Piper, 2009 ) . Stokols ( 1996 ) defines ecology as the survey of the association between beings and their environment, and puts this in the position of wellness publicity in the community, where the focal point is shifted from the person ‘s wellness related intercessions unto that of the community working together in the environment in which they live in. this reflects a more socio ecological orientation of wellness publicity which is a castel lation of the person, community and the constructions around ( Stokols, 1996 ) . Organizations Intervention at this degree involves organisational procedures, manner, leading, civilization, practises and inducements to better health-related behavior or enable behavior alteration ( McLeroy et al. , 1992 ) . A big part of most people ‘s lives are spent in organisations such as work and establishments, these organisations have an influence on the person ‘s health-related behavior ( McLeroy et al. , 1988 ) . In the context of wellness publicity, administrations particularly those affecting worksites give entree to a big group of people and offer the chance for societal support and behavior alteration, peculiarly when the behavior is a societal norm ( McLeroy, 1988 ) . This degree in the model means the execution of a entire smoke prohibition policies backed by jurisprudence in the work topographic point and public topographic points by employers and persons of authorization. The mark of wellness publicity is non the organisation or the establishment itself but the employees and persons who are likely to be institutionalised ( McLeroy, 1988 ) . Organizational alterations are indispensable in an ecological model where a long-run behavioral alteration is supported, and a requirement for institutionalisation of wellness publicity ( McLeroy, 1988 ) . Public Policy State capacity and substructure, including clear leading and dedicated resources, are indispensable to the development and execution of a strong strategic program that includes the designation and riddance of tobacco-related disparities ( CDC, 2007 ) . Tobacco control plans need to further the motive to discontinue smoking through policy alterations and media runs every bit good as through advancing quit line services ( CDC, 2007 ) . The authorities at this degree will be responsible for patroling policies which are put in topographic point to implement the ordinances and limitations on baccy usage and its publicity. Some surveies have shown that execution of authorities policy to censor smoke has worked really good. For illustration a survey which evaluated the consequence of smoking prohibition at a jobsite by Borland et Al ( 1999 ) , found out that, workplace smoking prohibition contributed to a decrease of coffin nail ingestion. There was no grounds to propose that heavy tobacco users who were deemed as the most addicted compensated the greatest during java and tiffin interruptions. This could propose that the fuss of go forthing the workplace to smoke was an hindrance taking to a decrease in ingestion ( Borland et al, 1990 ) . It besides implies that including institutional and public policies in wellness publicity can accomplish an appropriate behavior alteration because non merely will the person have to postulate with the incommodiousness but besides the possibility of interrupting the jurisprudence and holding to confront the effects, farther deters persons from coffin nail ingestion. The smoke prohibition, as mentioned earlier, Was a authorities scheme to advance a healthy state. So in this instance employers are merely utilizing their substructure to implement a authorities scheme. Evaluation of the Model One cardinal advantage of the socio-ecological theoretical account is that it has the ability to integrate schemes of wellness publicity by utilizing behaviour alteration and environmental betterment in a wide theoretical frame work ( Stokols, 1996 ) . It besides highlights a cross-level scrutiny of health-related jobs and proposes an appropriate interventional scheme by incorporating two or more systematic degrees ( Stokols, 1996 ) . For illustration: organizational, personal or community degrees that allow practicians to analyze both persons and cumulative visual aspect of wellness jobs and how it affects intercessions at all the different degrees ( Stokols, 1996 ) . Hence the unsighted musca volitanss that can non be identified by other theoretical accounts, due to concentrating on merely a fix determiner of wellness or either the person or the environment is avoided as attending is given to an interplay of factors at both single and other comprehensive degrees ( Stokols, 1996 ) . However, the social-ecological theoretical account is non without its restrictions. First, intercessions designed based on the social-ecological theoretical account require incorporation of different Fieldss of cognition. It besides involves the coordination of different sectors in the community. It hence becomes practically impossible to implement such plans ( Stokols, 1996 ) . Therefore, this method should be regarded as lone portion of the theoretical account that can be actively implemented and that the remainder is merely inactive. It is hence logical to inquire whether the social-ecological theoretical account is excessively inclusive in trying to embrace so many factors and taking the focal point off from the person and in consequence doing the single feel less responsible. In practise, it is of import to allow the single feel they are non on their ain by offering support. However, it is of import for the practicians, to non take duty off from the person. Decision In decision, the socio-ecological theoretical account identifies human behavior to happen in extremely organised constructions which can hold a great impact on the wellbeing of the person ( Stokols, 1996 ) . Behaviour alteration can be achieved by act uponing the physical, environmental and the societal interactions of the person, though this may non be ever so, however, the social-ecological position of wellness publicity is more likely to accomplish a higher impact as it uses a multi-disciplinary attack.

Messiah College Admissions SAT Scores, Costs More

Astro-Hoaxes You Shouldnt Take Seriously

Every year we see stories about how Earth is going to be hit by an asteroid, or that Mars will be as big as the full Moon, or a NASA probe has found evidence of life on Mars. In fact, the list of astronomy hoaxes is never-ending. One way to find out whats really happening is to check out the debunking site Snopes. Their writers are usually on top of the latest stories, and not just in weird science. Earth as a Target: Maybe, but Not the Way You Think The recurring story about Earth and an incoming asteroid  usually shows up in the supermarket press, often with a projected date, but few other details. It almost always cites NASA, but doesnt name a scientist who is making the prediction. In addition, the story rarely mentions amateur astronomers and their observations. There are thousands of these people around the world watching the skies, and if an incoming asteroid were to be on a collision course with Earth, theyd see it (unless it was really quite small). It is true that NASA and a world-wide group of both professional and amateur observers are monitoring the space near Earth for any possible Earth-crossing asteroids. Those would be the most likely types of objects to pose a threat to our planet. Announcements of Earth-crossing or Earth-approaching asteroids would show up at the NASA Jet Propulsion Laboratory Near Earth Object Program web page. And  such objects are usually spotted pretty far in advance. The known Potentially Hazardous asteroids have very, very small chances of colliding with Earth in the next 100 years; its less than one tenth of one percent of a chance.  So, the answer to whether or not theres an asteroid homing in on Earth is No. Just no. And, for the record, supermarket tabloids are not scientific journals. Mars Will Be as Big as the Full Moon!   Of all the astronomy hoaxes to circulate on the web, the idea that Mars will look as big as the full Moon on some given date is one of the most inaccurate. The Moon lies 238,000 miles away from us; Mars never gets closer than 36 million miles. Theres no way they can look the same size, not unless Mars wants to get a lot closer to us, and if it did, it would be pretty catastrophic. The hoax began with a poorly worded email announcing that  Mars — as seen through a 75-power telescope — would look as big as the full Moon would look to the naked eye. This was supposed to occur in 2003, when Mars and Earth were closest to each other in their orbits (but still more than 34 million miles apart). Now, the same rumor comes around every year. No matter where we are in our orbits with respect to each other, Mars will look like a small point of light from Earth and the Moon will look big and lovely. NASA Is (Not) Hiding Life on Mars The red planet Mars currently has two working rovers on its surface:  Opportunity and Curiosity. They are sending back images of rocks, mountains, valleys, and craters. Those images are taken during daylight hours under all kinds of lighting conditions. Occasionally an image shows a rock in the shadows. Due to our propensity to see faces in rocks and clouds (a phenomenon called pareidolia), its sometimes easy to see a shadowy rock as a form, a crab, or a statue of a debutante. The infamous Face on Mars turned out to be a rocky bluff with shadows that looked like eyes and a mouth. It was a trick of light and shadow playing across rock outcrops and cliffs. Its like the Old Man of the Mountain in New Hampshire in the United States. It was a rock overhang that, from one angle, looked like an old mans profile. If you looked at it from another direction, it was just a rocky cliff. Now, because it cracked and crashed to the ground, its a pile of rock. There are already some pretty interesting things on Mars that science can tell us about, so theres no need to imagine fantastic creatures where only rocks exist. And, just because Mars scientists debunk the existence of a face or a rock that looks like a crab does not mean theyre hiding life on Mars. If they had found any shred of evidence of living beings on the red planet now (or in the past), it would be huge news. At least, thats what common sense tells us. And common sense is an important factor in doing science as well as exploring the universe.

Ncfe Level 2 Certificate in the Principles of Dementia Care.

Lee Clark. NCFE level 2 Certificate in the Principles of Dementia Care. Unit 1. Q1. Explain what is meant by the term dementia Dementia is a broad term used to describe the symptoms that occur when the brain is affected by specific diseases and conditions.Dementia is a progressive disease and the symptoms will get gradually worse. | Q2. Describe how dementia can affect a person if the following areas of the brain are damaged by dementia. Area of Brain | How damage to this area might affect a person with dementia | Frontal lobe | * Inability to plan a sequence of complex movements * Loss of spontaneity in interacting with others * Loss of flexibility in thinking * Persistence of a single thought * Inability to†¦show more content†¦The person may become confused when handling money and undergo personality changes, appearing to no longer care about those around them. Swings are common and the person may become tearful for no apparent reason, or become convinced that someone is trying to harm them.In advanced cases people may also adopt unsettling behaviour like getting up in the middle of the night or wander off and become lost. Some people lose their inhibitions and sense of what is acceptable behaviour, undress in public or make inappropriate sexual advances. The person may become incontinent, have difficulty eating and drinking and may become completely dependent on others.2. Symptoms usually develop suddenly and progress in a step like way where a sudden worsening is followed by a period of stabilisation. Common symptoms include poor concentration and difficulties with communication. memory loss may also lead to confusion.As vascular dementia does not affect all of the brain, the individual may be able to retain more of their abilities and memory loss may not appear until later in the progression of the disease. This means that the individual may be more aware of their deteriorating health and may therefore be more at risk of depression.3. Dementia with Lewy Bodies is a

Electricity and Magnetism free essay sample

As he was setting up his materials, he noticed acompass needle  deflected from  magnetic north  when the electric current from the battery he was using was switched on and off. This deflection convinced him that magnetic fields radiate from all sides of a wire carrying an electric current, just as light and heat do, and that it confirmed a direct relationship between electricity and magnetism. At the time of discovery, Orsted did not suggest any satisfactory explanation of the phenomenon, nor did he try to represent the phenomenon in a mathematical framework. However, three months later he began more intensive investigations. Soon thereafter he published his findings, proving that an electric current produces a magnetic field as it flows through a wire. The  CGS  unit of  magnetic induction  (oersted) is named in honor of his contributions to the field of electromagnetism. His findings resulted in intensive research throughout the scientific community in  electrodynamics. We will write a custom essay sample on Electricity and Magnetism or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page They influenced French physicist  Andre-Marie Amperes developments of a single mathematical form to represent the magnetic forces between urrent-carrying conductors. Orsteds discovery also represented a major step toward a unified concept of energy. This unification, which was observed by  Michael Faraday, extended by  James Clerk Maxwell, and partially reformulated by  Oliver Heaviside  and  Heinrich Hertz, is one of the key accomplishments of 19th century  mathematical physics. It had far-reaching consequences, one of which was the understanding of the nature oflight. Light and other  electromagnetic waves  take the form of  quantized, self-propagating  oscillatory  electromagnetic field disturbances called  photons. Differentfrequencies  of oscillation give rise to the different forms of  electromagnetic radiation, from  radio waves  at the lowest frequencies, to visible light at intermediate frequencies, to  gamma rays  at the highest frequencies. Orsted was not the only person to examine the relation between electricity and magnetism. In 1802  Gian Domenico Romagnosi, an Italian legal scholar, deflected a magnetic needle by electrostatic charges. Actually, no  galvanic  current existed in the setup and hence no electromagnetism was present. An account of the discovery was published in 1802 in an Italian newspaper, but it was largely overlooked by the contemporary scientific community. Electricity and Magnetism Electricity and magnetism is an interesting aspect of electricity. We are familiar with in our everyday lives with the phenomenon of static cling when two objects, such as a piece of Saran wrap and a wool sweater, are rubbed together, they cling. One feature of this that we dont encounter too often is static repulsion if each piece of Saran wrap is rubbed on the wool sweater, then the pieces of Saran wrap will repel when brought near each other. These phenomena are interpreted in terms of the objects acquiring anelectric charge, which has the following features: * There are two types of charge, which by convention are labelled  positive  and  negative. * Like charges repel, and unlike charges attract. * All objects may have a charge equal to an integral number of a basic unit of charge. * Charge is never created or destroyed. Electric Fields A convenient concept for describing these electricity and magnetism forces is that of an  electric field. Imagine that we have a fixed distribution of charges, such as on the plate below, and bring in the vicinity of this distribution a  test chargeQ. Figure 1  Test charge in the presence of a fixed charge distribution This charge will experience a force due to the presence of the other charges. One defines the electric field of the charge distribution as: The electric field is a property of this fixed charge distribution; the force on a different charge  Q  at the same point would be given by the product of the charge  Q  and the  same  electric field. Note that the electric field at  Q  is always in the same direction as the electric force. Because the force on a charge depends on the magnitude of the charges involved and on the distances separating the charges, the electric field varies from point to point, both in magnitude and direction. By convention, the direction of the electric field at a point is the direction of the force on a  positivetest charge placed at that point. An example of the electric field due to a positive point charge is given below. Figure 2:  Electric field lines of a positive charge Power and Magnetic Fields An electricity and magnetism phenomenon apparently unrelated to power are electrical magnetic fields. We are familiar with these forces through the interaction of compasses with the earths magnetic field, or through fridge magnets or magnets on childrens toys. Magnetic forces are explained in terms very similar to those used for electric forces: * There are two types of  magnetic poles, conventionally called North and South * Like poles repel, and opposite poles attract However, this attraction differs from electric power in one important aspect: * Unlike electric charges, magnetic poles always occur in North-South pairs; there are nomagnetic monopoles. Later on we will see at the atomic level why this is so. As in the case of electric charges, it is convenient to introduce the concept of a  magnetic field  in describing the action of magnetic forces. Magnetic field lines for a bar magnet are pictured below. Figure 3:  Magnetic field lines of a bar magnet One can interpret these lines as indicating the direction that a compass needle will point if placed at that position. The strength of magnetic fields is measured in units of  Teslas  (T). One tesla is actually a relatively strong field the earths magnetic field is of the order of 0. 001 T. Magnetic Forces On Moving Charges One basic feature is that, in the vicinity of a magnetic field, a  moving  charge will experience a force. Interestingly, the force on the charged particle is always perpendicular to the direction it is moving. Thus magnetic forces cause charged particles to change their direction of motion, but they do not change the  speed  of the particle. This property is used in high-energy particle accelerators to focus beams of particles which eventually collide with targets to produce new particles. Another way to understand these electricity and magnetism forces is to realize that if the force is perpendicular to the motion, then no work is done. Hence these forces do no work on charged particles and cannot increase their kinetic energy. If a charged particle moves through a constant magnetic field, its speed stays the same, but its direction is constantly changing. A device in which this property is used is the  mass spectrometer, which is used to identify elements. A basic mass spectrometer is pictured below. Figure 4:  Mass spectrometer In this device a beam of charged particles (ions) enter a region of a magnetic field, where they experience a force and are bent in a circular path. The amount of bending depends on the mass (and charge) of the particle, and by measuring this amount one can infer they type of particle that is present by comparing to the bending of known elements. Magnet Power From Electric Power A connection was discovered (accidentally) by Orsted over 100 years ago, who noticed that a compass needle is deflected when brought into the vicinity of a current carrying wire.