Omnipresence of Water Research Paper Example | Topics and Well Written Essays - 500 words

Omnipresence of Water - Research Paper Example Water is the medium for chemical reactions in the body (Barney Harris, Jr. and H. H. VanHorn). Water is the only pure substance found naturally in all the three states of matter i.e., gaseous state, liquid state and solid state. The density of water changes with temperature, as the temperature of water, is lowered it becomes dense and at 4C it reaches maximum density, on further cooling the volume of water expands by about 9% to become less dense and form ice. Thus the ice floats on water and doesn't sink..(Explanation of the Anomalies of Water (1-10) - Shrinks on melting) If water were solid when denser in an artificial scenario, then the ice wouldn't float and sink to the bottom consequently the oxygen content in the water at the bottom would increase (Since at lower temperatures the oxygen content is increased) then the metabolic activity of microorganisms near surface would increase because of increased temperatures but face oxygen deficiency (Since at higher temperatures the oxygen content is decreased). Oxygen depletion is also due to a buildup of organic materials from human activity, thus causing oxygen deficiency to the fish, invertebrate, plant and aerobic bacteria. Oxygen levels below 3 parts per million would mean a grave situation for all these aquatic organisms and an aquatic ecosystem imbalance. (Exploring Environment Water Quality- Dissolved Oxygen) If the water was denser then all the oceans, water bodies, lakes and drinking water sources would be frozen or solidified and only a few inches would melt in summer. The oceans frozen portions would essentially be salt-free.( Water (molecule) – from Wikipedia, the free encyclopedia)

Music Essays Mozarts Piano Sonata Number 13

Music Essays Mozarts Piano Sonata Number 13 Mozart’s piano sonata number 13, K333, composed somewhere between 1779 and 1783. The first movement of Mozart’s piano sonata number 13, K333, composed somewhere between 1779 and 1783, (depending on the historical scholar), is a splendid, nimble piece of composition.   It is full of agility and complexity but manages to still be both very accessible and structured.   It also reflects Mozart’s admiration of and influence by Johann Christian Bach, a contemporary of Mozart’s who died in 1782.   Most musical scholars familiar with both composers agree that the opening motif of K333 bears a very flattering similarity to JC Bach’s Op. 5 no. 3 and Op. 17 no.4 piano sonatas.   Another overall source of influence is the style of the concertos of the time, grandiose and ebullient in style.   The first movement contains numerous concerto-esque flourishes that stray from the standard sonata paradigm, thereby adding an element of boldness to the piece. As far as the genre of piano sonatas go, K333 is otherwise fairly textbook in its construction. What is the significance of this?   The foundation of the sonata structure is the contrast, juxtaposition, and unification, of two musical keys.   Generally, these two keys are known as the ‘tonic’ and ‘dominant.’   The sonata establishes these two themes in an expository beginning section, followed by a development section in which, following the establishment of the second key, the tonality is deconstructed and its component musical segments are modified, explored, expanded upon, etc.   At the end of this development section, the piece returns to the tonic key in order to recapitulate the material from the exposition, â€Å"without the shift of key that characterized the exposition, thus harmonically unifying what was previously contrasted material.† (Edexcel, 2001)   The sonata as a general paradigm, then, is inherently a fascinating exercise in ‘voice leading,’ or the way in which individual musical parts, or ‘voices’, interact to form chord progressions.   Individual composers were noted for their particular voice-leading styles, as each possessed particular eccentricities and tendencies when it came to tackling the challenge of creatively transitioning from chord to chord within progressions, movements, or entire pieces.   The particular rules, if you will, of the sonata were always challenges that afforded composers, e.g. Mozart, the opportunity to showcase their voice-leading creativity; specifically, how to navigate the tension and journey between the sonata’s tonic and dominant keys.   K333 is no exception and the Edexcel piece is helpful in providing a launching point for understanding Mozart’s approach to K333: K333 is written in 4/4 time and is in the key of B-flat major; it specifically proceeds as follows, per the standard sonata conventions of the time: Exposition: bars 1-63. Development: bars 64-93. Recapitulation: bars 94-165. Bars 1-10 present the tonic key, which is B-flat major.   The musical theme(s) used to present the tonic key is/are known as the ‘first subject.’In bar 10, Mozart restates the opening of the piece, except transposed an octave lower.In bar 12, Mozart ‘drops’ an E-natural in the RH (right hand).   The significance of this note is that it introduces a C-major dominant 7th harmony that marks the transition of the piece to the dominant key, F-major, and is a good example of Mozart’s interesting voice-leading choices.In bars 13.4, 14.4, and 15.4, the RH sprinkles a descending group of semiquavers (also known as sixteenth notes) which illustrate that Mozart is, even early on, playfully exploring variations of the first subject – even before the introduction of the second.In bar 17.3, Mozart ‘drops’ a B-natural in the LH (left hand).   This note creates a G major dominant 7th harmony, which further punctuates the evolution away from the tonic key of B-flat major.In bar 22, Mozart accentuates the piece with an arpeggiation of a C major chord.   As the piece transitions to the key of F major, the C major chord is to become the new dominant chord; therefore, the arpeggiation is a preview or announcement of sorts of the impending transition.   This is one of many different stylistic manifestations of creative voice-leading.Bars 22-30 introduce the second subject, in the key of F major as mentioned above.   There are rhythmic similarities, however, to the first subject despite the key change.In bars 31-35, Mozart teases the listener by flirting with a transition to the key of G-minor, transitioning briefly for one bar before returning to F major and proceeding traditionally.Bar 64 commences the development section.   The quaver (eighth-note) rhythmic triads featured in Bar 1 are reintroduced and embellished upon by Mozart between bars 64 and 70.Bars 71-86 showcases Mozart’s further propensity to toy w ith the sonata structure by bending its rules without breaking them, per se.   He changes keys here here into F minor briefly, which is unexpectedly dramatic and concerto-like, and the right hand darts to the highest possible F note on a piano.   The darkness suggested by the F minor flirtation is explored further with brief tangents into C minor, E flat minor, and G minor between bars 75 and 86.Bars 87-90 feature an F major dominant 7th chord, which uses the chord of F to signal the imminent transition into the recapitulation section, which will take the piece back to B-flat major.Bars 94-105 feature the commencement of the recapitulation, a complete replica of the initial exposition until Mozart tosses in an A-flat chord in the RH at bar 105, continuing even in the recapitulation to introduce unusual elements.Bars 119-143 features the reappearance of the second subject in nearly identical form as its original presentation, except transposed to the tonic key.Bars 152-165 compri se the coda, which is mostly a duplication of bars 50-63 of the exposition with some flourishes thrown in, showing Mozart refuses to completely adhere to structure for structure’s sake. What is pleasurable about the piece overall, then, is clear.   Mozart is faithful to the stylistic requirements of the genre, not deviating from the overall structure, while being creative with the execution of the interplay between the two keys he employs.   Furthermore, Mozart’s voice-leading technique is bold and enhances the piece’s complexity, particularly the mood-darkening introduced by his transitions into minor keys, including F minor, and also in his methods of announcing transitions between keys by flourishes or arpeggios. Finally, it is worth mentioning that other technical elements, though perhaps unmoving to an expert, are nonetheless astonishing to a layperson or non-musician.   The tempo Mozart utilizes is astonishingly brisk given the acrobatics required by the composition.   To appreciate the piece is also to appreciate the skill necessary for a person to perform it competently, much less expressively. BIBLIOGRAPHY Mozart, Wolfgang Amadeus.   Piano Sonata No. 13 in B flat, K.333, circa 1781 Mozart: Piano Sonata in B-flat K333, first movement in Edexcel A Level Syllabus Analysis [book on-line] (Edexcel, 2001, accessed 11 June 2005); available from http://www.musicteachers.co.uk/resources/k333.pdf

Therapsids :: Biology Essays Research Papers

The Amazing Cheesy Adventures of Professor Sanderson's Paleobiology Class! Part 1: Therapsids I hope you guys have as much fun reading this as I did writing it. ^_^ *** The Amazing Cheesy Adventures of Professor Sanderson's Paleobiology Class! Investigation 1: Where did mammals come from? Or: Therapsids! ** Professor Sanderson's class was popular. Partly this was because he was a well-meaning psyinstructor; the images he crafted were neat, cohesive, and usually entertaining. Mainly, though, it was because he was a young male teacher at an all-girls' college, who had the fortune to resemble Jai from "Queer Eye For the Straight Guy." These two factors led to an unnaturally high enrollment in Paleobiology 101. No less than fifty-two girls sat chittering in the classroom before he appeared each day, punctually, at 10 a.m. Most were more intrigued by *his* anatomy than that of the long-dead tetrapods to which he devoted his lectures. Today's attendance was especially high. It was a Field Trip day. The term wasn't literal. There was no trip involved---simply the students closing their eyes and falling into the trance-like state from which the professor led their excursions. There, in the collective canvass of their psyches, he would build that day's lesson, sculpting visceral images from his expansive knowledge of biology and his even more expansive creativity. Today's lesson was mammalian origins. "Where do we come from?" he had asked, by way of preamble. "We all know the basic answer, or think we do. Apes, right? And apes from primates, and primates from mammals, all well and good. But where do mammals come from? I mean, what did mammals evolve from, and what were the major evolutionary steps they took to get there? Doesn't that sound fascinating? " The class eyed him warily. A few actually listened. The rest swooned. "Today we're going to try and explore that question. If you'll all take out your textbooks, flip to page 137, lean back, orient your touchpads, and close your eyes..." he waited while the actions were performed. "We'll be going to the Permian. That's the time right before the Triassic period, which started the age of the dinosaurs. It's approximately 300 million years in the past." (1) He briefly surveyed the class, then looked thoughtful for a moment. "Wait. I guess I should give you a little background first," he relented. "The main thing we're going to see today is a group of animals called the therapsids.

Will Doing a Master’s Get Me a better job?

Many students wrestle with the decision whether to take up Postgraduate study at the end of their Undergraduate degree. For some students this is to put off the thought of getting a ‘real-job’ for another year (which is a bad reason to do a Master’s!), but for others it is seen as a route to further develop their education, themselves, and – ultimately – their employability. But that invariably comes with a cost: another year of course fees, accommodation and bills, and remaining a poor student. So how do you know if Postgraduate study is for youToday we look at whether a Master’s is for you†¦Post-Graduate Study To Get a JobOne of the most commonly cited reasons that students give for pursuing Master’s courses is because they feel the qualifications will boost their salary. On first impressions, the statistics suggest that people with master’s qualifications are more likely to find work than those with undergraduate degrees – and they’re likely to earn a slightly higher wage. Data from the Higher Education Statistics Agency (Hesa) shows 86.6% of postgraduates were working in professional positions six months after graduating, compared with 64% of first degree graduates. Sounds great, right?A Master’s is not a Magic TicketHowever, students need to remember that there isn’t an explicit labour market for Master’s qualifications. This means that many master’s graduates – especially those with generalist rather than vocational qualifications – will still be competing against first degree graduates for jobs. If you’re studying a technical master’s – for example in a pharmaceutical or medical subject area – then it’s likely that this will enhance your employability above an undergraduate. However, if you’re doing a master’s of a more generic nature that’s not essential to the advertised job, employers will probably view you in the same way as other graduates.What does this mean?This would mean that those graduating with Master’s degrees need to highlight to employers that recruiting someone with an additional qualification will benefit their organisation. If you’ve done a more general master’s course that isn’t required by a prospective employer then you need to show what skills you’ve gained – research skills, lateral thinking and so on. You should show that you’re able to study something in-depth and do good critical analysis, a transferable skill in all walks of employment.Funding I ssuesFinding funding to study a Masters isn’t easy and for a lot of students, a lack of funding means that continuing university study isn’t an option. Some universities may have scholarship opportunities or offer discounts to students who move from undergraduate to postgraduate level. You don’t get a student loan either for Master’s Study – so you need to be sure it is definitely what you want before committing to it.How do I get the most out of my Master’s Degree?To get the most out of a Master’s degree you need to have a clear goal and an idea of what you want to get out of it. If you want to get into industry, then think strategically – make sure that you’re getting work experience or going on placements and that this links in with your studies. Put as much research into finding a postgrad course as you did when searching for an undergraduate course – and think about the end game. Ultimately its important for students not to embark on a postgraduate course just because they think that it will make them more employable. You will need to explain to employers what benefits their qualification will bring, but there is no denying that – if you a clear goal and reason for study – that enhancing your skills with a postgraduate degree will enhance your employability.

The Problem Of Death / Illnesses - 1300 Words

In order to see what we truly do, we are going to break down what we do in each area in order to help. Starting with health, where millions of people die from avoidable causes in those countries, like Syria, affected by violent conflict and natural disasters. This includes troubles related to crisis, such as: poor sanitation, famines of food and medicine, and insufficient prevention. In order to do this, we empower community health workers to treat leading causes of death/illnesses, we create strategies for treating hunger, ensure access to immunization, access to reproductive agencies for women and girls, educating people on their emotional and mental health, provide clean water, work on ways to have good hygiene and sanitation, and ensure people are well-served by health institutions. These practices plus numerous others have helped millions improve their healthcare and sanitation. (IRC) This is just the start. Another thing we work on bettering is a refugee’s safety. In ord er to be successful in improving their lives, the refugees, especially women and children, need to be in a protected place. IRC recognizes this so we have a goal to create a relationship with those in trouble, help them obtain shelter, build safer communities, and know their human rights. A good amount of the time women and children are in danger of violence in their homes and communities because they are the most vulnerable population. We want to make sure that these refugees are protected in allShow MoreRelatedDepression in the Elderly Essay1261 Words   |  6 PagesDepression in the Elderly Depression later in life frequently coexists with other medical illnesses and disabilities. In addition, advancing age is often accompanied by loss of key social support systems due to the death of a spouse or siblings, retirement, and/or relocation of residence. Because of their change in circumstances and the fact that theyre expected to slow down, doctors and family may miss the diagnosis of depression in elderly people, delaying effective treatment. As a resultRead MoreEssay about Medicating Mental Illnesses1142 Words   |  5 Pagesabout 450 million people in the world currently are suffering from a mental illness, many untreated, the topic still remains taboo in modern society (Mental Health). For years, people with mental illnesses have been shut away or institutionalized, and despite cultural progression in many areas, mental illnesses are still shamed and rarely brought to light outside of the psychiatric community. The many different forms in which mental illness can occu r are incredibly prevalent in the world today, and thereRead MoreFoodborne Illness Is A Big Problem1343 Words   |  6 PagesHave you ever wondered how big of a problem foodborne illness is on the federal level in the United States? Foodborne illness is a big problem on the public health. Foodborne illnesses are infections caused by beverages or foods that contain harmful bacteria, viruses, parasites and/or chemicals. Foods can also be contaminated with bacteria during the food preparation you do at home or the preparation done at a restaurant. If the food cooks or food preparers do not carefully wash their hands, kitchenRead MoreObesity And Fast Food1444 Words   |  6 Pagesleading cause of deaths after tobacco use in the United States? In the United States, obesity is one of the public health issues that causes thousand of deaths. When a person’s body mass index shows an extremely high number, he or she is considered having obesity. It is important because it is a seriou s health problem due to mortality and morbidity. In addition, eating many unhealthy food and lacking exercises lead to dangerous chronic illnesses which then leads to premature death. 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Many Americans are questioning the morality of executing mentally ill convicts, as well as the validity of the death penalty itself. These are the questions Americans should be asking, or at least putting some thought into. One might be surprised at how much knowledge one has about the death penalty and veryRead MoreMental Health : Mental Illness1604 Words   |  7 Pages Comorbidity factors, such as substance abuse, are prevalent with mental illnesses and contribute to the burden of disease while increasing chances of reoccurrence and severity, making recovery less likely. †¢ Mortality Mental disorders don’t directly cause death but they can lead to suicide, the intentional fatal harming of oneself. Suicide is the most common cause of death by mental illness with approximately 2000 deaths annually in Australia, according to the Better Health Channel. It is the

Symptoms And Symptoms Of Acute Kidney Infection - 955 Words

During the second set of final clinical practice, I provided nursing care to the client with query sepsis and clostridium difficile as admitting diagnosis. The client had a history (Hx) of acute kidney infection (AKI) which led to dialysis. After resolving AKI, the patient went home, but soon returned to the hospital with severe diarrhea (5-6 episodes per day), confusion and symptoms of sepsis. Upon initial assessment, I found the patient oriented to name only, confused and lethargic, incontinent of urine and stool. The patient had bilateral crackles throughout the lung fields, gurgles upon exertion and tachypnea with respiratory rate 24-28. SpO2 level was within normal limits. The patient’s family reported that the current patient’s cognitive condition function was different from the baseline. The patient was difficult to arouse, with Glasgow Coma Scale (GCS) score 12-13. The heart rate was within normal limits, strong, irregular. Bilateral edema 2+ was present in lower legs, skin was warm to touch, pedal pulses palpable. The patient was on caloric count due to poor caloric intake. The family was frustrated because of recurrent hospitalization due to hospital-acquired infection and very concerned about possibility of poor outcome for the patient due to rapidly deteriorating general condition. My primary concern was the possible aspiration as evidenced by gurgles upon exertion. I elevated the head of bed and made sure that suctioning equipment was in place andShow MoreRelatedAcute Syndrome : Acute Nephritic Syndrome1165 Words   |  5 PagesAcute Nephritic Syndrome Introduction Acute nephritic syndrome is a group of symptoms that occurs with a few disorders that cause glomerulonephritis or swelling and inflammation of the glomeruli in the kidney as shown in Figure 1. 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The first signs of acute renal failure can be found by a rise in serum creatinine concentration or azotemia, which is a rise in blood urea nitrogen (BUN) concentration. Symptoms of acute renal failure may include, little or no urine when urinating, swelling in the legs and feet, not feeling like eating, nausea and vomitingRead MoreWhat is Acute Renal Failure?1202 Words   |  5 Pages Acute renal failure is a disorder of the urinary system. It involves the loss of kidney function and may occur suddenly. Acute renal failure occurs when blood flow to the kidneys is decreased. There are numerous reasons why there may be a decrease in renal function. A urinary tract obstruction, low blood pressure, illness, inflammation of the kidneys, and harmful substances are examples of causes of acute renal failure. These causes have different origins. The causes are separated into prerenalRead MoreExcretory System1437 Words   |  6 Pagesproduct in this process and is used in the digestive process. 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If the Renal blood flow is altered then the glomerular filtration rate will be altered as well. A decrease in systemic pressure stimulates the sympathetic nervous system to constrict the renal artery and decreases filtration and secretion in the kidney. In addition, a tubular

Essay Operant Conditioning - 1743 Words

Ivan Pavlov Classical conditioning is a method used in behavioral studies. It is known as classical because it is the first study of laws of learning/conditioning, It is a learned reaction that you do when evoked by a stimulus. Ivan Pavlov was the scientist who discovered classical conditioning. Ivan Pavlov was born in Russia. He lived from 1849 - 1936 . Pavlov’s field of study was physiology and natural science. One of Pavlov’s discoveries was the conditioning of dogs. While working with the dogs he investigated the salivation reaction when food was present. He discovered that the dogs would salivate when he entered the room with and without food. Pavlov then went on to training the dogs. He would ring a bell†¦show more content†¦The animal would response. It would then be rewarded. The response is then learned. If the response was not rewarded then it would disappear over time. The animals would be placed into the puzzle boxes and would only be able to escape by making certain responses such as pushing a button. The experiment with the cats entailed placing a hungry cat into the puzzle box. He then observed its behaviour. The cat would try and escape in order to obtain food. The cat in most cases would act on a â€Å"trial and error† method. When the cat obtained the food the trial and error behaviour decreased and the cat soon learnt how to escape quickly. The lear nt behaviour took time and did not improve quickly. The amount of time the cat spent in the box slowly shorted. Upon completion of his experiment Thorndike learnt that certain stimuli and responses became associated or dissociated from each other. He developed his law of effect. Thorndike concluded that animals learn by trial and error, or most importantly by reward and punishment. He then linked the behavior of the cats to all beings. His work with animals was the founding principle of Instrumental Learning. His most famous work was on the learning theory that lead to the development of operant conditioning by a psychologist called Burrhus.Frederic Skinner. Skinner was born in Pennsylvania on March 20, 1904. Skinners first studied English at Hamilton College. He often wrote for the college newspaper. HeShow MoreRelatedClassical or Operant Conditioning Essay1115 Words   |  5 PagesClassical conditioning developed from the findings of Ivan Pavlov, laying the foundations for behaviourism. From this J.B Watson and other behaviourists argued psychology should be indicative of predicting and controlling overt behaviour using the conditional reflex. (Watson, 1994). This essay will describe the important features of classical conditioning, consider their use in explaining pathological behaviour and will be answered using empirical evidence. The earlier part of the essay will focusRead MoreClassical and Operant Conditioning Essay1000 Words   |  4 Pagesworld. Classical conditioning and operant conditioning are both basic forms of learning, they have the word conditioning in common. Conditioning is the acquisition of specific patterns of b ehavior in the presence of well-defined stimuli. Classical conditioning is a type of learning in which an organism learns to transfer a natural response from one stimulus to another, previously neutral stimulus. Classical conditioning is achieved by manipulating reflexes. Operant conditioning is a type of learningRead MorePsy 390 Operant Conditioning Essay851 Words   |  4 PagesOperant Conditioning Dena Couch PSY 390 July 30, 2012 Dr. Thauberger Operant Conditioning In this paper there will be an examination of the Operant Conditioning theory. It will describe the theory, and compare and contrast the positive and negative reinforcement. It will determine which form of reinforcement is the most effective, and will give an explanation of the reasoning behind that choice. It will also give a scenario in which operant conditioning is applied and how it shapes behaviorRead MoreSkinners Operant Conditioning Theory Essay658 Words   |  3 PagesSkinners Operant Conditioning Theory B.F Skinner (1904-1990), an American psychologist who was the leading exponent of the school of psychology know as behaviourism, maintained the idea that learning is a result of any change in overt behaviour. Changes in behaviour are determined by the way an individual responds to events (stimuli) in the environment. Skinner described this phenomenon as operant conditioning. Action on part of the learner is called a response. WhenRead MoreOperant Conditioning in the Criminal Ju Essay2660 Words   |  11 Pagesï » ¿ Operant Conditioning in the Criminal Justice System Z. M. Keys Psychology of Criminal Behavior CCJS 461 17 October 2014 The only way to tell whether a given event is reinforcing to a given organism under given conditions is to make a direct test. We observe the frequency of a selected response, then make an event contingent upon it and observe any change in frequency. If there is a change, we classify the event as reinforcing to the organism under the existing conditionsRead MoreEssay on Comparison of Classical and Operant and Conditioning660 Words   |  3 Pagesbeing either classical conditioning or operant conditioning when we are dealing with Psychology terms. These two habituation methods are very comparable in nature, but do possess very specific distinctions in their differences. The major difference between classical and operant conditioning is the type of behaviors being conditioned. Classical is focused more on reflex and automatic actions whereas operant deals more with voluntary actions. Classical and operant conditioning are also different inRead MoreApplying Operant Conditioning to Hum an Behaviour Essay591 Words   |  3 PagesApplying Operant Conditioning to Human Behaviour Operant conditioning is when a way of learning by consequence. To put it basic, an action which is rewarded is more likely to be repeated, along with an action that is punished is less likely to be repeated. To apply this to an example of human behaviour, young children may have shaped behaviour due to operant conditioning; where desireable behaviour is rewarded (e.g. by giving a toy) the behaviour is being positivelyRead MoreB. F. Skinners Philosophy of Operant Conditioning Theory Essay591 Words   |  3 PagesI think that B.F. Skinner shares my philosophy in the behavioral aspects of education. There are many points that have expanded my philosophy. One was the operant conditioning theory, which is when the behavior is changed through positive and negative consequences depending on one’s behavior. Positive Reinforcements can be anything from food and candy to a toy or sticker. Negative reinforcement could be a timeout, scolding, or maybe a spanking. It all depends on their behavior. One thing that surprisedRead More Operant Conditioning Essay757 Words   |  4 PagesOperant Conditioning Overview: The theory of B.F. Skinner is based upon the idea that learning is a function of change in overt behavior. Changes in behavior are the result of an individuals response to events (stimuli) that occur in the environment. A response produces a consequence such as defining a word, hitting a ball, or solving a math problem. When a particular Stimulus-Response (S-R) pattern is reinforced (rewarded), the individual is conditioned to respond. The distinctive characteristicRead MoreClassical And Operant Conditioning Essay815 Words   |  4 PagesUsing examples of both classical and operant conditioning, discuss the contributions  and limitations of learning theory for the understanding of behaviour (Schacter et al., 2nd Ed, Chapter 6, also see Chapter 1 for historical context)      Learning theory can be summarized as behaviour which shows us how animals and people  respond to a stimulus. This is  incredibly  important  due to the direct impact it has on many features of daily life and how we implement this into our practices, from  the way  education