Science Of Dreams Essays - Dream, Neurophysiology, Sleep

Science Of Dreams The Science of Dreams A dream is a display, usually visual, that occurs during the night while we sleep in order to deal with and asses the things that we have dealt with during the day. A dream is a remembered residue in the form of creatively assembled visual metaphors(Guiley). In 1900 Sigmund Freud wrote in the The Interpretation of Dreams that dreams are disguised wishes arising from ones unconscious mind. Having been suppressed by the conscious mind, the wishes sneak into the sleeping brain in the form of dreams. Due to electoencephalograph machine that recorded the rapid eye movement during sleep and research into the physical nature of dreaming, Freud's theory has been for the most part proven wrong. There is no definitive answer as to what a dream is. There is a raging debate over the neuroscientific point of view and the psychoanalytical point of view about what it is that actually causes dreams. In the next few paragraphs I will look at the proposed answers from both the neuroscientific and psychoanalytical The process of dreaming starts in the brain stem and is controlled by two neurotransmitters that in affect turn the dreams on and of. The one that turns the dreams on uses acetylcholine to begin the dream, and the part that turns the dream off uses norepinephrine and serotonin to end the dream sequence.When the norepinephrine and serotonin are suppressed, the other chemical, acetylcholine allows electrical signals to the cortex. Norepinephrine and serotonin are necessary to imprint the dreams into your long term memory. This may explain why we forget the majority of our dreams. Since the two chemicals are suppressed during the dreaming process, most dreams are not stored in the long term memory of our minds. The brain stem neurons also start a sinusoidal wave known as theta rhythm the hippocampus, a brain structure that looks like a sea horse which is believed to be responsible for the storage of memory. While this happens, the nerves that usually carry information from the world around us shut down(Guiley). If the dream happens during the REM phase of sleep, the person sleeping will experience an increased heart rate and a temporary paralysis. To prevent the sleeper from acting out the dream, the brain freezes the muscular activity. Experiments have been done on cats where the nueral fibers that freeze the movement during REM sleep were removed. This resulted in the cats walking around and acting out there dreams. Some people do act out there dreams. This disorder can be treated by a drug called Clonazepam which is also used to treat epilepsy. Dreams are different according to when the dream occurs in relation to the period of sleep. During the REM stage of sleep and at other times or non-REM sleep. There are four stages of sleep. As the sleeper goes through the stages of sleep the brain waves decrease in frequency. After the sleeper goes through the four stages of sleep, the sleeper goes back through the stages until they are back in stage one. This stage bone is called the Emergent Stage One. This is the time in which most of the REM dreaming occurs. In early 1953 is when the physical science of dreams really began when researchers at the University of Chicago discovered physical signals like rapid eye movement and brain wave patterns that signaled that dreams were in progress. Most all of the research since then has focused on the REM stage of sleep. All mammals, and even a few birds and reptiles go through the REM stage of sleep. In humans as we get older less time is spent in the REM stage of sleep. Fetuses spend most all of their time in the REM stage and new borns spend an average of eight hours a day in REM sleep. Fifty percent of sleep of infants and small children is spent in REM sleep. Adults sleep is usually about twenty percent REM sleep, and for older people only fifteen percent of sleep is spent in the REM stage of sleep. Many scientist believe that this is because that REM sleep plays a part in the learning process and is more important for the younger sleepers(Ackroyd). Eventhough REM sleep has gotten all of the attention when it comes to research, it must be remebered that we do not just dream in the REM stage. NREM are the dreams that are usually more logical and are more likely to

Free Essays on School In Athens

â€Å"SCHOOL IN ATHENS† The philosophical significance of Raphael’s â€Å"School in Athens† is quite obvious to me. In the very center Plato and Aristotle are made to stand out more than anyone else in the painting. Raphael choose to put these two walking down the center carrying their respective famous works. Plato is pointing to the heavens while he carries theTimaeus, and Aristotle who is carrying the Ethics is pointing outwards in my opinion to the Earth. These two men are the main characters in ancient philosophy; they explained where we came from and the earth that surrounds us. The many people surrounding them could be followers of the two different thoughts each on their respective sides of Plato and Aristotle. I also believe that this painting is also a fantasy. Raphael was fantasizing about what the school must have been like. People all over the place involved in very deep dialogues about life, where we came from, and where we will end up. This painting was done during the Renaissance which was a time of looking back on ancient philosophy with almost wishful thinking. Raphael included himself in the painting and I think he did this because he wished he could be with these men in their discussions, and their thoughts. Other noted philosophers are included in the painting but are not as detailed or focused as Plato and Aristotle. They are; Socrates, Pythagoras, Euclid, Alcibiades, Diogenes, Ptolemy, Zoroaster. This was done to show that they did have some significance to ancient philosophy, but were not anywhere as important as the two greats, Plato and Aristotle. This painting in my opinion is a salute of reverence, recognition, and gratitude to the two men who were possibly the greatest thinker on Earth.... Free Essays on School In Athens Free Essays on School In Athens â€Å"SCHOOL IN ATHENS† The philosophical significance of Raphael’s â€Å"School in Athens† is quite obvious to me. In the very center Plato and Aristotle are made to stand out more than anyone else in the painting. Raphael choose to put these two walking down the center carrying their respective famous works. Plato is pointing to the heavens while he carries theTimaeus, and Aristotle who is carrying the Ethics is pointing outwards in my opinion to the Earth. These two men are the main characters in ancient philosophy; they explained where we came from and the earth that surrounds us. The many people surrounding them could be followers of the two different thoughts each on their respective sides of Plato and Aristotle. I also believe that this painting is also a fantasy. Raphael was fantasizing about what the school must have been like. People all over the place involved in very deep dialogues about life, where we came from, and where we will end up. This painting was done during the Renaissance which was a time of looking back on ancient philosophy with almost wishful thinking. Raphael included himself in the painting and I think he did this because he wished he could be with these men in their discussions, and their thoughts. Other noted philosophers are included in the painting but are not as detailed or focused as Plato and Aristotle. They are; Socrates, Pythagoras, Euclid, Alcibiades, Diogenes, Ptolemy, Zoroaster. This was done to show that they did have some significance to ancient philosophy, but were not anywhere as important as the two greats, Plato and Aristotle. This painting in my opinion is a salute of reverence, recognition, and gratitude to the two men who were possibly the greatest thinker on Earth....

La Vie Boheme Essay Example | Topics and Well Written Essays - 750 words

La Vie Boheme - Essay Example Popular consumption of music has long been influenced by the stage – but perhaps not more so than in the modern era of super-popular Broadway musicals. It is in some ways easy to dismiss such musicals as somewhat venal entertainment, more akin to Hollywood than Mozart, but their immense popularity demands that they receive some attention. Perhaps no musical has been as widely popular as Jonathan Larson’s magnum opus, Rent, and perhaps no song is more indicative of both that musical and the feelings that it inspires in its viewer than â€Å"La Vie Bohà ¨me,† an homage to Giacomo Puccini's opera  La Bohà ¨me, on which Rent was based. Songs in popular musicals often struggle with the blending of text and music; the text is often so important that music takes a back seat, or else an emotional moment of music is required, and text is written just to have something happening during that moment. I would argue, however, that â€Å"La Vie Bohà ¨me† effortlessl y combines both musical and textual elements to create a pleasing cocophony that relates intrinsically to the philosophical underpinnings of a Bohemian lifestyle. In short, it represents the certainty of death, the chaos of life, and Bohemianism as a response to simply having too little time on earth. Life and death are the central themes to this work, both textually and musically. The song begins with a character explaining that he had had â€Å"a death in the family,† his dog, â€Å"Evita† had died. He then goes on to explain how beautifully the neighborhood would change if people would give up their bohemian lifestyle. During this period the music is light, delicate, ordered and lively, with a high, major key melody played on a piano. He closes by telling the other characters that â€Å"Bohemia is dead.† This moment represents the first change between life and death that occurs in the work. The music then launches into a funeral dirge, with the character of M ark launching into a funeral sermon regarding the death of Bohemia. While he speaks, an interesting musical and textual event happens during the background. Two basses begin singing what sounds like a traditional funerary chant in Latin, which sounds almost like a Gregorian chant. A closer analysis of this chant will come later, but for the moment it serves to especially emphasize the deathly nature of the beginning of this song. As the sermon goes on, however, its mood shifts, the organ music finishes playing a minor key dirge, and opens into a major key melody. As this transition occurs, Mark almost seamlessly stops talking about death, and begins talking about birth, the birth of Christ. This transition wholly encapsulates one of the fundmanental aspects of Bohemian behavior – the recognition of death. Bohemians live with constant awareness of death – it is an awareness that spurs them on to live as fast and hard as they possibly can, to extract every ounce possible of experience out of life before it ends. The song then launches into a chaotic manifesto in defense of Bohemianism. While the opening clearly pushes one Bohemian theme, awareness of death as a cause for living in a Bohemian way, it also pushes another theme: conscious rejection of authority. The chant, which appeared to be Latin at first glance, helps develops these themes more fully. On a close inspection, only the first line, â€Å"Dies irae! Dies illa† or â€Å"Days of wrath and doom are coming† are Latin. Traditional words of death. The pair of basses then launch into a new language, Greek, keeping the same Gregorian style, â€Å"Kyrie, eleison† or, â€Å"Lord of have mercy† before closing in a final different language, but the same Gregorian style â€Å"Yitgadal v’yitkadash,† Hebrew meaning magnificent and sanctified. Firstly, using three languages demonstrates an awareness and expression of value of diversity – a theme that is more fully developed later in the song. But more importantly, the song thus smoothly connects Latin, Greek and Hebrew liturgy into a neat package, and

Public administration Theories Term Paper Example | Topics and Well Written Essays - 1000 words

Public administration Theories - Term Paper Example Principally, theories attempt to explicitly explain and discuss various aspects of the psychological, social, and physical worlds, accurately and successfully predicting the underlying elements (Basu, 2004). This paper discusses the major theories of public administration as envisaged by various scholars, explicitly describing their implications in various settings within organizations or state bodies. Scientific Management Theory According to Farmer (2010), Fredrick Winslow Taylor conducted scientific studies and applied them to management problems. Although he was an engineer by profession, he managed to solve management problems successfully through his scientific studies (Raj, 2005). This is because he believed that management was a science that had specific governing laws and principles, an approach that several management scholars adopted in their studies to improve on his work. Through his scientific approach, Taylor emphasized the essence of partnership between the management and the staff in fulfilling an organization’s objectives through scientific management techniques. Taylor strongly believed that the prosperity of any social organization rested on the success of application and implementation of certain scientific changes whereby scientific training was the major motivating factor towards abandoning the old ways of doing things (Farmer, 2010). With respect to the performance of various workers at different levels, Taylor proposed the use of motion study that involved the evaluation of the workers’ performance against the time they took to accomplish their duties. Some of Taylor’s scientific management principles included solving management challenges through scientific approaches, cordial relationship between workers and management based on scientific methods, and scientific training of workers in order to attain efficiency (Basu, 2004).   Although Taylor made tremendous achievements together with his associates such as Henr y Gantt, Lillian Gilbreth, and Frank Gilbreth, they faced a number of criticisms from various quarters. One major criticism was the fact that the scientific approach to management perceived man as a machine, an issue that some preceding scholars found rather awkward to address. The psychological thinkers such as March and Simon insisted that Taylor ignored the human factor in the scientific management theory, a major aspect in psychological studies. In addition, the opponents of Taylorism theory, such as workers and managers, cited some elements of inflexibility in the approach (Denhardt, 2011).   Classical Theory According to Basu (2004), March and Simon in the mid-20th century professed this theory, terming it as the mechanical theory, the administrative management theory, or simply the structural theory. Later, Henri Fayol together with other scholars suggested through the structural theory that administrative work remained administrative work, the work performed and the circum stances surrounding the performance of the work notwithstanding. They categorically argued that administrative knowledge surpassed other forms of knowledge such as technical knowledge, and various management personnel could apply this kind of knowledge to a wide spectrum such as religion, government institutions, and organizations (Denhardt, 2011).  Fayol, in furtherance of his studies, classified administrative duties into five major categories that included planning, control, coordination,

Significant Health Care Event Essay Example for Free

Significant Health Care Event Essay While writing this paper on health care it will be discuss how some significant event relates to the changes taking place in health care today. It will also examine if this event made an impact in the historic evolution of health care. Last thing this paper will discuss is do my personal belief and values agree with this change? This significant event is technology. The growth of technology has played a role in how health care is changing in the United States. According to Leiyu Shi â€Å"technological revolution has been primarily responsible for bringing medicine into the public domain. Technology have open debate over how people will pay for health care, what kind of health care they will receive and what role will governments play in health care. Health care has gone through three historic phases; the first phase was preindustrial era that was from the middle of the 18th century to the latter part of the 19th century. The second phase postindustrial era started in the late 19th century and the phase the country is currently in the corporate eras, which mark the growth of globalization, organizational integration, managed care, and information revolution. There have been several ways technology has changed health care services. One way is the improvement in records keeping. This makes it easier to keep up with patient’s records and help hospital workers do their job more effectively. Record keeping was made safer and easier when hospitals went to electronic health records, errors was far less than before electronic records. It also makes it quicker access for the physicians and staff to find files that was needed in a timely manner. By having this information on a screen in front of the physician, it makes the physician be able to make a decision based on a patient entire medical record. The Internet has empowered patient to research their own symptoms and find a doctor of their choice. Hospitals are using websites, blog, and social media to connect with potential patients and to get the good thing that they are doing to help people when they are sick. Technology offered patient hope of finding a cure or a much easier and faster way of doing procedures. Technology has changed the world, now we can take college classes’online, grocery shop from your home and technology has made a major improvement in the health care field. The digital revolution has completely changed the way we get information on, and treatment for, our health. I believe technology has helped the growth of healthcare and it will continue to make thing better for the patients and healthcare across the United States. I personally agree that technology will continue to help with the ever growing need for more ways to do patient friendly surgeries for health care and I witness this as an employee of a health care facility. For example I watch the way some procedures are done with the new technology da vinci robotic surgery. According to Intuitive Surgical Thanks to a breakthrough surgical technology, there is a new category of minimally invasive surgery for which you may be a candidate. It is an effective, minimally invasive alternative to both open surgery and laparoscopy. Through the use of the da Vinci ® Surgical System, surgeons are now able to offer a minimally invasive option for complex surgical procedures. Before this technology came to the hospital the surgery required large open incisions, this meant recovery time was more and also it was proven the patients will be in more pain this way. The da vinici surgery has help patients get back to their normal lives faster, shorter hospital stay, and less pain. In conclusion health care is in a better place today because of the significant event of technology being part of health care. Scientist will continue to strive and make new technology to improve the way surgery is done. Government has to find a way to come together on how Americans can afford to have healthcare. My beliefs and values are that the United States has to move toward making sure all Americans have health insurance.

Ramification Of Jordan :: essays research papers

Trustworthy Computing Continues to Build Momentum The third year of Microsoft’s long-term commitment saw progress in technology investments, industry leadership and customer guidance. REDMOND, Wash., Jan. 13, 2005 -- Scott Charney wants people to think of using their computer in the same way they think of using their telephone. Scott Charney, vice president, Trustworthy Computing, Microsoft Corp. Not that Charney, vice president of Trustworthy Computing at Microsoft, is trying to advocate voice over other communication choices. Rather, he points out that people will walk up to almost any telephone, pick up the receiver and take for granted that they will get a dial tone. Even though the phone system occasionally fails, people are still confident that they will get a dial tone, their call will be completed, and their conversation will be secure and private. Charney wants people to think about computers in the same way. And that is why Microsoft is full steam ahead on its Trustworthy Computing initiative, which marks three years of progress on January 15. Launched by an internal memo from Chairman and Chief Software Architect Bill Gates in 2002, Trustworthy Computing is a long-term effort to create and deliver secure, private, and reliable computing experiences for everyone. Charney says Microsoft made significant progress in Trustworthy Computing's third year, progress reflected in its technology investments, industry leadership and customer guidance. Even so, he says, Microsoft recognizes there is a long way to go. "Remember that the telephone evolved over several decades to reach today's level of trust; party lines were hardly secure or private," he says. "Computers have reached global ubiquity in only 20 years, but the industry is still maturing, and reliability, security and privacy -- the things that create trust -- are still improving. People recognize the value of computing, but many people still wonder if something bad will happen when they are using their personal computer. "Trust in computing is critical if technology is to deliver on its promise. Microsoft's leadership will hopefully help the industry generate that trust sooner rather than later." Technology Investment and Innovation Trustworthy Online Microsoft offers numerous sites with information, tips and guidance for users, both corporate and consumer, in support of its Trustworthy Computing initiative. These include: Trustworthy Computing: Complete details about this long-term initiative. Security and Privacy Customer Assistance: More detailed information on how to deal with common security and privacy problems. Security and Privacy reference materials: Microsoft Press publishes an extensive selection of books on computer security, privacy and safety issues.

Is playing Sports a Good Hobby ?

Sport is identified as a physical activity carried out by human beings usually executed by following a set of rules and principles to ensure fair competition among the candidates. Playing sports and indulging in physical activities aids in confirming various health benefits including comfortable respiration, muscular development, bone strength, advanced life expectancy, and coronary fitness. Playing sports helps in safeguarding the body and prevents it from contracting various types of diseases like cancer.Also, it assists in controlling unnecessary weight gain and depression by diverting the mind in a positive direction. Some of the affirmative effects of playing sports have been discussed below. It is a known fact that regaling in any kind of physical activity leads to a healthy workout and consequently promotes weight loss. Sports acts as a catalyst for the metabolic processes and resultantly increases lean body mass, burns calories and aids in attaining perfect body shape.There i s a lot of variation in the amount of suggested physical work. It is mainly due to the variation in the shape/size of the body of different individuals and amount of calorie input, nonetheless it is remedial for people who are obese. As enumerated by the U. S. Department of Health and Human Services, Weight stability can be obtained if 2-5 hours are invested in playing averagely demanding sports. Playing high intensity sport is extremely significant for people who wish to reduce their weight adequately.It is advised by physicians that people of all age groups must undertake any kind of physical activity or sport as it in helps in cultivating a healthy heart and mind. As delineated by the British Parliamentary Office of Science and Technology, about 40 percent of deaths related to coronary heart disease take place due to insufficient physical work, overweight, mental stress and increased blood pressure. Sports can help in dealing with these physical ailments by reducing the contingen cy of coronary disease by almost 50 percent.Decrease in the strength of muscles, bones and joints, is an inevitable corollary of growing old. Aged people are advised to go for regular walks and practice numerous physical exercises so that their body parts are in healthy and working condition. Thus, it can be concluded that playing sports is very significant for people of all age groups and must be taken up seriously in order to maintain a healthy body.