Tuesday, November 26, 2019

Free Essays on German Philosopher Immanuel Kant

A18th century German philosopher Immanuel Kant (1724-1804) presents a view on moral obligation, which he calls the categorical imperative. Kant’s philosophy later called Kantian philosophy outlines the Universal Law Formation of the Categorical Imperative as a method for determining morality of actions. Kant’s formula consists of a two part test. First, one creates a maxim and considers whether the maxim could be a universal law for all rational beings and the second one determines whether rational beings would will it to be a universal law. The initial stage of the Universal Law Formation of the Categorical Imperative requires that a maxim be universally applicable to all rational beings. The second requirement is that a rational being would will this maxim to become a universal law. In testing this part, you must decide whether in every case, a rational being would believe that the morally correct action is to tell the truth. Once it is clear that the maxim passes both tests, there are no exceptions. As a emergency medical technician is faced with a with a distraught widow who asks whether her husband suffered in his death, you must decide which maxim to create and perform. The maxim when answering the woman’s question , always telling the truth regarding the nature of her late husband's death. The initial stage of the Universal Law Formation of the Categorical Imperative requires that a maxim be universally applicable to all rational beings. Therefore, this maxim is logical and everyone can put up with it. In testing the 2nd part, you must decide whether in every case, a rational being would believe that the morally correct action is to tell the truth. But if you decided to lie, what purpose would that serve besides trying to spare one’s feelings? Regardless the expected action is to tell the truth. Now for example let’s say the truth brings about the woman committing suicide, but Kant says that no rational being would... Free Essays on German Philosopher Immanuel Kant Free Essays on German Philosopher Immanuel Kant A18th century German philosopher Immanuel Kant (1724-1804) presents a view on moral obligation, which he calls the categorical imperative. Kant’s philosophy later called Kantian philosophy outlines the Universal Law Formation of the Categorical Imperative as a method for determining morality of actions. Kant’s formula consists of a two part test. First, one creates a maxim and considers whether the maxim could be a universal law for all rational beings and the second one determines whether rational beings would will it to be a universal law. The initial stage of the Universal Law Formation of the Categorical Imperative requires that a maxim be universally applicable to all rational beings. The second requirement is that a rational being would will this maxim to become a universal law. In testing this part, you must decide whether in every case, a rational being would believe that the morally correct action is to tell the truth. Once it is clear that the maxim passes both tests, there are no exceptions. As a emergency medical technician is faced with a with a distraught widow who asks whether her husband suffered in his death, you must decide which maxim to create and perform. The maxim when answering the woman’s question , always telling the truth regarding the nature of her late husband's death. The initial stage of the Universal Law Formation of the Categorical Imperative requires that a maxim be universally applicable to all rational beings. Therefore, this maxim is logical and everyone can put up with it. In testing the 2nd part, you must decide whether in every case, a rational being would believe that the morally correct action is to tell the truth. But if you decided to lie, what purpose would that serve besides trying to spare one’s feelings? Regardless the expected action is to tell the truth. Now for example let’s say the truth brings about the woman committing suicide, but Kant says that no rational being would...

Saturday, November 23, 2019

Law of Constant Composition in Chemistry

Law of Constant Composition in Chemistry In chemistry, the law of constant composition (also known as the law of definite proportions) states that samples of a pure compound always contain the same elements in the same mass proportion. This law, together with the law of multiple proportions, is the basis for stoichiometry in chemistry. In other words, no matter how a compound is obtained or prepared, it will always contain the same elements in the same mass proportion. For example, carbon dioxide (CO2) always contains carbon and oxygen in a 3:8 mass ratio. Water (H2O) always consists of hydrogen and oxygen in a 1:9 mass ratio. Law of Constant Composition History Discovery of this law is credited to the French chemist Joseph Proust, who through a series of experiments conducted from 1798 to 1804 concluded that chemical compounds consisted of a specific composition. Considering John Daltons atomic theory was only just beginning to explain that each element consisted of one type of atom and at the time, most scientists still believed elements could combine in any proportion, Prousts deductions were exceptional. Law of Constant Composition Example When you work with chemistry problems using this law, your goal is to look for the closest mass ratio between the elements. Its okay if the percentage is a few hundredths off. If youre using experimental data, the variation might be even greater. For example, lets say that using the law of constant composition, you want to demonstrate that two samples of cupric oxide abide by the law. Your first sample was 1.375 g cupric oxide, which was heated with hydrogen to yield 1.098 g of copper. For the second sample, 1.179 g of copper was dissolved in nitric acid to produce copper nitrate, which was subsequently burned to produce 1.476 g of cupric oxide. To work the problem, youd need to find the mass percent of each element in each sample. It doesnt matter whether you choose to find the percentage of copper or the percentage of oxygen. Youd simply subtract one of the values from 100 to get the percent of the other element. Write down what you know: In the first sample: copper oxide 1.375 gcopper 1.098 goxygen 1.375 - 1.098 0.277 g percent oxygen in CuO (0.277)(100%)/1.375 20.15% For the second sample: copper 1.179 gcopper oxide 1.476 goxygen 1.476 - 1.179 0.297 g percent oxygen in CuO (0.297)(100%)/1.476 20.12% The samples follow the law of constant composition, allowing for significant figures and experimental error. Exceptions to the Law of Constant Composition As it turns out, there are exceptions to this rule. There are some non-stoichiometric compounds that exhibit a variable composition from one sample to another. An example is wustite, a type of iron oxide that may contain 0.83 to 0.95 iron per each oxygen. Also, because there are different isotopes of atoms, even a normal stoichiometric compound may display variations in mass composition, depending which isotope of the atoms is present. Typically, this difference is relatively small, yet it does exist and can be important. The mass proportion of heavy water as compared with regular water is an example.

Thursday, November 21, 2019

English Essay Example | Topics and Well Written Essays - 1000 words - 1

English - Essay Example However, such setbacks can be prevented in terms of using medical practices that are safe. Therefore, Oliver Sacks his 1995 book of essays An Anthropology on Mars expounds on seven case studies that important for discussion. For example, by making analysis of conditions and syndromes of his patients and former colleagues, he allows readers to understand several issues (Sacks 145). These include the study on the workings of the brain and the body system and their relation with the diseases that affect most of his subjects. In other words, the author intends to make the audience understand the connection between the concepts of normality and handicap conditions in the life. The writer’s method of investigation is called neurological analysis because he is a trained neurologist. Therefore, he decides to treat his subjects individually by using case studies. Similarly, the decision to approach the cases at an individual level allows the author to understand the neurological proble ms each of the persons being investigated. Alternatively, the use of one person at a time in a case study allows for closer scrutiny and analysis in terms of the repercussions of existence in a different environment. In the same scope, the ability to analyze at a time permits the readers to compare and contrast the seven cases studies that are written in the form of essays by the author in his book (Sacks 124). This is through identifying the problems discussed and the resulting consequences of each patient in his/her unique world. Furthermore, the decision to approach the investigation in the form of case studies is making it easy for alternations and adjustments especially if there is a discovery in the scientific world. Consequently, that suggests that the cases in the book are treated independently for analysis especially when a critical addition is to be made. On the other hand, the author’s approach allows for more time to collect data and information that may suit diff erent case studies at any time. Therefore, there several ways that the writer discovers the individuals discussed in the essays. For example, the case studies involve his former patients who had visited his office and explained their ailments. The people studied in the essays also involve former colleagues and patients thus understanding their neurological conditions and superseding ailment. This case is exemplified in the Case of the Colorblind Painter who finds that his perception of colors is lost after a horrible accident. Similarly, from the comprehension of the working of visions, the author expounds on the working of the brain and how it affects optical nerves and other related reflexes (Sacks 134). On the other hand, another method to discover individuals is through understanding of some medical conditions that affect citizens as noted in A Surgeon’ Life concerning his colleague. In the case analysis, Sacks explains the symptoms of Tourrette’s Syndrome and the tactics of adjustment when infected. Alternatively, the writer makes startling discoveries about individuals based on the debilitating conditions constantly mentioned in the book that affect most citizens in American and around the world. This suggests the main intention of discovery is to bring the fore the issues of humanity and the best ways having them treated. There is an interesting matter concerning whether people the author studies are either patients or subjects. I think they are both patients and subjects in the context of the neurological study by the author. First, they are patients because there are several diagnoses concerning their conditions and syndromes. For instance, the case studies entail the struggle of each person with a condition that is both painful and hard to live in terms of

Tuesday, November 19, 2019

Convince school to take specific measurements to improve students Essay

Convince school to take specific measurements to improve students health and fitness - Essay Example The school also needs to watch out for the impacts that the programs has on the students. If the student do not take to the program implemented, they are likely not to participate hence the inevitable failure of the program. Nutrition and physical fitness is important for students because it offers many great benefits such as improved self esteem and confidence, improved performance in class and a general improvement in the physical health of the students (Jackson 56). If the students are in good shape, it reflects in their general self esteem. For teenagers, what others think is more important to them that what they think about themselves. Kids can be cruel in high school as is well known by all. They are bound to make fun of a fellow kid if they were seen as unhealthy and unfit. If the students are physically fit, it instills some form of confidence in them and makes them feel like they are actually worthy. This is a decision made based on their mastery of skills and the aspects of the physical programs. This in turn makes the student more aggressive, have more self-control, be more independent and have more confidence. In addition, physical fitness among the students will reflect in other areas of the curriculum. The students are bound to perform better in class and this benefit them and the school as well. Every management wants the society to see them succeeding and therefore, good student performance reflects well on the managements performance (Jackson, 43). Physical exercise has always been known to be a way through which one can relieve stress. Engaging in physical exercise does not only improve the physical health of the students, but also can be a way for the children to rid themselves of any form of tension and anxiety that they may be experiencing. Consequently, this will improve the student’s emotional stability and resilience. The programs set up for improved physical health can be an

Sunday, November 17, 2019

Homeless And Public Policy Essay Example for Free

Homeless And Public Policy Essay Homeless   Ã‚  Ã‚  Ã‚   In any types of society, be it large or small scale, numerous problems can be experienced by the social elements building the public unit. In the case of Lakeland, Florida, there are now a great number of homeless individuals because of certain social and economic conditions.   Ã‚  Ã‚  Ã‚   Primarily, the main losers in this social problem are the individuals who are homeless. The homeless people tend to be the losers since they will not have much opportunity to improve their lives in the absence of a home. People in the neighborhood can also become the losers since some of them feel anxious about their security in the presence of homeless people in the streets of their community. In a positive perspective, the homeless people can also be considered as the primary gainers. These individuals in Lakeland can expect to have a warm compassionate reaction from its neighborhoods (Inside Lakeland, 2007).   Ã‚  Ã‚  Ã‚   There is a significant direct cost of having homeless people lurking in Lakeland. For one, damage to private and public properties may be involved in the complete manipulation by homeless individuals of the current infrastructure where they want to dwell in. Another is the possibility of garbage amount increase in the area because of improper disposal processes. The indirect cost on the other hand can be realized in the form of lesser external investments due to the visual and probably perceptive impression of investors.   Ã‚  Ã‚  Ã‚   The primary attributed factor which brings homelessness rates in Lakeland relatively high is somehow pointed out to personal concerns of individuals.   Alcoholism, drug use, mental health issues and unemployment are among the top issues. Thus, not being able to resolve these problems leads to homeless situations for people with such dilemmas in life.   References Inside Lakeland PD. 2007. Policing the Homeless in Lakeland. Retrieved November 29, 2007 from http://www.insidelakelandpd.org/2007/06/policing_the_ho.html.

Thursday, November 14, 2019

Primary Dysmenorrhea Essay examples -- Health, Gynecological Problems

Primary dysmenorrhea refers to the occurrence of painful menstrual cramps of uterine origin by a hyper secretion of endometrial prostaglandins and is a gynecological complaint.Common treatment for this problem is medical therapy such as mefenamic acid (NSAIDs drugs) or oral contraceptive pills which both work by reducing myometrial activity. One of useful herbal agents to reducing potential dysmenorrhea is fennel. In this randomized clinical trial (RCT) study was compared fennel drop with mefenamic acid for reducing pain of primary dysmenorrhea. Sixty college students with moderate dysmenorrhea were randomly selected and flowed up two cycle.29 Of 30 students continue the study in study group and 30 students reminded in control group. In first month no extra medications used, but in second month in study group was taken fennel drop (25 drop every 6 hour) and they can use mefenamic acid if necessary. According to this study, it seems that fennel oil can be effective in reducing the severity of dysmenorrhea bur malodor and bad taste were not acceptable for most of the volunteers. Key word: fennel, primary dysmenorrhea, herbal drug. Introduction: Primary dysmenorrhea is one of the most common gynecological problems in Women(Marjoribanks, Proctor et al. 2003; Lefebvre, Pinsonneault et al. 2005(Harel 2006)). More than 70% of Iranian females experience painful menstruation (PANAHANDEH, Pakzad et al. 2008) .Between 50% till 80% of females reported some levels of discomfort associated with mens , and 20% report sever dysmenorrhea.(Proctor and Farquhar 2007).Primary dysmenorrhea a condition associated with ovulatory cycles, is due to myometrium contractions induced by prostaglandins in the second half of menstrual cycle. Many women e... ...romi study one of thirty case had more bleeding. Akhavan Amjadi in her investigation showed there is no significance difference between severity bleeding in fennel user ( Akhavan amjadi ).she showedThe essence of fennel can be used as a safe and effective herbal drug for primary dysmenorrhea, however, it may have a lower potency than mefenamic acid in the dosages used for this study. in our cases they can use mefenamic acid when fennel drops were not effective enough and support Akhavan amjadi finding. Smith reported in one trial acupuncture reduced mestural symptom compared with Chinese herbs.(Smith, Zhu et al. 2011) Khodakrami showed both mefenamic acid and herbal drugs effectively relieved dysmenorrhea as compared with the placebo. She suggested more clinical trials are needed to establish the efficacy of fennel (Khodakrami Nahid, Fariborz et al. 2008).

Tuesday, November 12, 2019

Grunge to Urban Grunge Essay

The grunge scene is considered the most depressing, angst filled style. But how did ‘grunge’ become grunge? How did a six-letter word meaning dirt, filth, trashbag become synonymous with a musical genre, a distinct fashion statement and most especially, a subculture? According to the book Surfers Soulies Skinheads and Skaters which talks about different sub cultural style from the forties to the nineties, â€Å"Membership of subculture groups, whose ideas and lifestyles are at variance with those of the dominant culture, is usually dominated by the young. For some it is fleeting and forms a rite of passage; others move through a series of subcultures, and some remain committed to one, long term. Belonging to a subculture can be liberating, offering, for example, certain freedoms in lifestyle, sexuality and politics. By defining their own geographical, social and sartorial boundaries, subcultures also provide a sense of belonging which is independent of the family. † (Amy de la Haye and Cathie Dingwall, 1996) Grunge style was sort of rebellion against the starched yuppiedom, first appearing in Seattle in the late 1980s. America’s answer to Punk Rock, described both a new generation of loud, guitar-orientated rock music and the attitude of its exponents. Grunge was originally a genre of alternative rock; the fashion scene however is different. Grunge fashion was influenced by grunge music, which achieved mainstream popularity in 1992 due to the overwhelming success of the band Nirvana and their hit single Smell Like Teen Spirit. In Great Britain, Grunge was the name given by the music press to a loose and short-lived collective of new rock bands. The word has since been used to describe the attitude, scruffiness and loud music preferred by youth who identify with this kind of music. The Grunge fashion is a combination of second-hand clothing like lain flannel shirts worn with faded stonewashed blue jeans and heavy boots. The grunge scene was commonly associated with dark colour palettes like maroon, forest green, indigo brown, and the most popular colour combination, black and white. In 1988, a Seattle record label called Sub Pop released a boxed set with a compilation of grunge bands like Nirvana, Soundgarden and Mudhoney and it came with a booklet with pictures by Charles Peterson, the photographer credited for creating grunge’s hair-sweat-and-guitars look. Sub Pop also sent it to the nation’s alternative-rock intelligentsia describing its bands’ punk-metal guitar noise as â€Å"grunge†, the first documented use of the now-ubiquitous term. The vibe now is a little bit like the early 70’s, before metal ceased to be heavy and relied on adrenaline highs as opposed to despondency,† said Simon Reynolds, the author of Blissed Out (Serpent’s Tail, 1990) a chronicle of rock subcultures. â€Å"There’s a feeling of burnout in the culture at large. Kids are depressed about the future. † James Truman, the editor in chief of Details, the young men’s style magazine that took grunge to the masses, said: â€Å"To me the thing about grunge is it’s not anti-fashion, it’s un fashion. Punk was anti-fashion. It made a statement. Grunge is about not making a statement, which is why it’s crazy for it to become a fashion statement. † Hollywood also weighed in with a grunge-scene movie, â€Å"Singles† released on the year 1992 by director Cameron Crowe. Then came fashion designer Marc Jacobs who was hailed as â€Å"the guru of grunge† but has never even been to Seattle that time. On April 1993 he launched a grunge-themed fashion show called Couture Grunge and Heroin Chic. During the spring fashion shows, designer Marc Jacobs debuts the seemingly oxymoronic â€Å"couture grunge† that emulates the loose flannel shirts, shabby cardigans, wrinkled and torn pants, and the notoriously thin body frames of grunge rock and its largely Seattle-based musicians. This look involves an element that some call â€Å"heroin chic†, characterized by extremely thin models like Kate Moss, and controversially alluding to drug use as an element of the latest trend. No one wants to pay designer prices for flannel shirts, and Jacobs’ collection (for the Perry Ellis label) was shut down, but not before making a profound effect on the fashion industry. Jacobs’ Spring/ Summer 1993 ‘grunge’ collection was a seminal moment in modern fashion, launching the then relatively-unknown young designer’s straight into the big league as well as his dismissal from Perry Ellis, leading him to set up on his own. Today, the grunge fashion scene has been polished and renewed and turned into Urban Grunge, a more sophisticated, edgy vibe of wearing the worn-out flannel and denim jeans. Typical for big city’s street style, the urban grunge fashion will never go out of style. The trend always appears in a new and interesting manner, whether it has futuristic details, vintage influences or masculine accents. The urban grunge street-inspired fashion comes back every season as an inspiration for high-fashion brands like John Galliano, Calvin Klein, Marc Jacobs to name a few and as well as for underground fashion designers. I for one am a big fan of urban grunge fashion and I think it’s very hip and doesn’t require a lot of effort to dress up. Grunge will always live on forever carrying the name of Nirvana’s Kurt Cobain proving that Grunge is Not Dead.

Sunday, November 10, 2019

Golden Ratio in the Human Body

THE GOLDEN RATIO IN THE HUMAN BODY GABRIELLE NAHAS IBDP MATH STUDIES THURSDAY, FEBRUARY 23rd 2012 WORD COUNT: 2,839 INTRODUCTION: The Golden Ratio, also known as The Divine Proportion, The Golden Mean, or Phi, is a constant that can be seen all throughout the mathematical world. This irrational number, Phi (? ) is equal to 1. 618 when rounded. It is described as â€Å"dividing a line in the extreme and mean ratio†. This means that when you divide segments of a line that always have a same quotient. When lines like these are divided, Phi is the quotient: When the black line is 1. 18 (Phi) times larger than the blue line and the blue line is 1. 618 times larger than the red line, you are able to find Phi. What makes Phi such a mathematical phenomenon is how often it can be found in many different places and situations all over the world. It is seen in architecture, nature, Fibonacci numbers, and even more amazingly,the human body. Fibonacci Numbers have proven to be closely rela ted to the Golden Ratio. They are a series of numbers discovered by Leonardo Fibonacci in 1175AD. In the Fibonacci Series, every number is the sum of the two before it.The term number is known as ‘n’. The first term is ‘Un’ so, in order to find the next term in the sequence, the last two Un and Un+1 are added. (Knott). Formula: Un + Un+1 = Un+2 Example: The second term (U2) is 1; the third term (U3) is 2. The fourth term is going to be 1+2, making U3 equal 3. Fibonacci Series: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144†¦ When each term in the Fibonacci Series is divided by the term before it, the quotient is Phi, with the exception of the first 9 terms, which are still very close to equaling Phi. Term (n)| First Term Un| SecondTerm Un+1| Second Term/First Term (Un+1 /Un)| 1| 0| 1| n/a| 2| 1| 1| 1| 3| 1| 2| 2| 4| 2| 3| 1. 5| 5| 3| 5| 1. 667| 6| 5| 8| 1. 6| 7| 8| 13| 1. 625| 8| 13| 21| 1. 615| 9| 21| 34| 1. 619| 10| 34| 55| 1. 618| 11| 55| 89| 1. 618| 12| 89| 144| 1. 618| Lines that follow the Fibonacci Series are found all over the world and are lines that can be divided to find Phi. One interesting place they are found is in the human body. Many examples of Phi can be seen in the hands, face and body. For example, when the length of a person’s forearm is divided by the length of that person’s hand, the quotient is Phi.The distance from a person’s head to their fingertips divided by the distance from that person’s head to their elbows equals Phi. (Jovanovic). Because Phi is found in so many natural places, it is called the Divine ratio. It can be tested in a number of ways, and has been by various scientists and mathematicians. I have chosen to investigate the Phi constant and its appearance in the human body, to find the ratio in different sized people and see if my results match what is expected. The aim of this investigation is to find examples of the number 1. 618 in different people and investiga te other places where Phi is found.Three ratios will be compared. The ratios investigated are the ratio of head to toe and head to fingertips, the ratio of the lowest section of the index finger to the middle section of the index finger, and the ratio of forearm to hand. FIGURE 1 FIGURE 2 FIGURE 3 The first ratio is the white line in the to the light blue line in FIGURE 1 The second ratio is the ratio of the black line to the blue line in FIGURE 2 The third ratio is the ratio of the light blue line to the dark blue line in FIGURE 3 METHOD: DESIGN: Specific body parts of people of different ages and genders were measured in centimeters.Five people were measured and each participant had these parts measured: * Distance from head to foot * Distance from head to fingertips * Length of lowest section of index finger * Length of middle section of index finger * Distance from elbow to fingertips * Distance from wrist to fingertips The ratios were found, to see how close their quotients are to Phi (1. 618). Then the percentage difference was found for each result. PARTICIPANTS: The people were of different ages and genders. For variety, a 4-year-old female, 8-year-old male, 18-year-old female, 18-year-old male and a 45-year-old male were measured.All of the measurements are in this investigation with the ratios found and how close they are to the constant Phi are analyzed. The results were put into tables by each set of measurements and the ratios were found. DATA: | Participant Measurement ( ± 0. 5 cm)| Measurement| 4/female| 8/male| 18/female| 18/male| 45/male| Distance from head to foot| 105. 5| 124. 5| 167| 180| 185| Distance from head to fingertips| 72. 5| 84| 97| 110| 115| Length of lowest section of index finger| 2| 3| 3| 3| 3| Length of middle section of index finger| 1. 2| 2| 2. 5| 2| 2| Distance from elbow to fingertips| 27| 30| 40| 48| 50|Distance from wrist to fingertips| 15| 18. 5| 25| 28| 31| RATIO 1: RATIO OF HEAD TO TOE AND HEAD TO FINGERTIPS Measure ments Participant| Distance from head to foot ( ±0. 5 cm)| Distance from head to fingertips ( ±0. 5 cm)| 4-year-old female| 105. 5| 72. 5| 8-year-old male| 124. 5| 85| 18-year-old female| 167| 97| 18-year-male| 180| 110| 45-year-old male| 185| 115| Ratios: These are the original quotients that were found from the measurements. According to the Golden Ratio, the expected quotients will all equal Phi (1. 618). Distance from head to footDistance from head to fingertips 1. 4-year-old female: 105.  ±0. 5 cm/ 72. 5 ±0. 5 cm = 1. 455  ± 1. 2% 2. 8-year-old male: 124. 5 ±0. 5 cm/ 85 ±0. 5 cm = 1. 465  ± 1. 0% 3. 18-year-old female: 167 ±0. 5 cm/ 97 ±0. 5 cm = 1. 722  ± 5. 2% 4. 18-year-old male: 180 ±0. 5 cm/ 110 ±0. 5 cm = 1. 636  ± 1. 0% 5. 45-year-old male: 185 ±0. 5 cm/ 115 ±0. 5 cm = 1. 609  ± 0. 7% How close each result is to Phi: This shows the difference between the actual quotient, what was measured, and the expected quotient (1. 618). This is foun d by subtracting the actual quotient from Phi and using the absolute value to get the difference so it does not give a negative answer. |1. 18-Actual Quotient|=difference between result and Phi The difference between each quotient and 1. 618: 1. 4-year-old female: |1. 618- 1. 455  ± 1. 2%| = 0. 163  ± 1. 2% 2. 8-year-old male: |1. 618- 1. 465  ± 1. 0%| = 0. 153  ± 1. 0% 3. 18-year-old female: |1. 618- 1. 722  ± 5. 2%| = 0. 1  ± 5. 2% 4. 18-year-old male: |1. 618- 1. 636  ± 1. 0%| = 0. 018 5. 45-year-old male: |1. 618- 1. 609  ± 0. 7%| = 0. 009 Percentage Error: To find how close the results are to the expected value of Phi, percentage error can be used. Percentage error is how close experimental results are to expected results.Percentage error is found by dividing the difference between each quotient and Phi by Phi (1. 618) and multiplying that result by 100. This gives you the difference of the actual quotient to the expected quotient, Phi, in a percentage. (Roberts ) Difference1. 618 x100=Percentage difference between result and Phi 1. 4-year-old female: 0. 163  ± 1. 2%/1. 618 x 100 = 10. 1  ± 0. 12% 2. 8-year-old male: 0. 153  ± 1. 0%/1. 618 x 100 = 9. 46  ± 0. 09% 3. 18-year-old female: 0. 1 ± 5. 2% /1. 618 x 100 = 6. 18  ± 0. 3% 4. 18-year-old male: 0. 018/1. 618 x 100 = 1. 11% 5. 45-year-old male: 0. 009/1. 618 x 100 = 0. 5% AVERAGE: 10. 1  ± 0. 12% + 9. 46  ± 0. 09% + 6. 18  ± 0. 3% + 1. 11% + 0. 55% / 5 = 5. 48  ± 0. 5% ANALYSIS: The highest percentage error, the percent difference between the result and Phi, is 10. 1  ± 0. 12%. This is a small percentage error, and means that all but one of the ratios was more than 90% accurate. This is a good example of the Golden Ratio in the human body because all the values are close to Phi. Also, as the age of the participants increases, the percentage error decreases, so as people get older, the ratio of their head to feet to the ratio of their head to fingertips gets closer to PhiRATIO 2: RATIO OF THE MIDDLE SECTION OF THE INDEX FINGER TO THE BOTTOM SECTION OF THE INDEX FINGER Measurements Participant| Length of lowest section of index finger ( ±0. 5 cm)| Length of middle section of index finger ( ±0. 5 cm)| 4 year old female| 2| 1| 8 year old male| 3| 2| 18 year old female| 3| 2. 5| 18 year male| 3| 2| 35 year old male| 3| 2| Ratios: Length of lowest section of index finger Length of middle section of index finger 1. 4-year-old female: 2  ± 0. 5 cm/ 1  ± 0. 5 cm = 2  ± 75% 2. 8-year-old male: 3  ± 0. 5 cm/ 2  ± 0. 5 cm = 1. 5  ± 42% 3. 18-year-old female: 3  ± 0. 5 cm/ 2.  ± 0. 5 cm = 1. 2  ± 37% 4. 18-year-old male: 3  ± 0. 5 cm/ 2  ± 0. 5 cm = 1. 5  ± 42% 5. 45-year-old male: 3  ± 0. 5 cm/ 2  ± 0. 5 cm = 1. 5  ± 42% How close each result is to Phi: |1. 618-Actual Quotient|=difference between result and Phi The difference between each quotient and 1. 618: 1. 4-year-old female: |1. 618- 2  ± 75%| = 0. 382  ± 75% 2 . 8-year-old male: |1. 618- 1. 5  ± 42%| = 0. 118  ± 42% 3. 18-year-old female: |1. 618- 1. 2  ± 37%| = 0. 418  ± 37% 4. 18-year-old male: |1. 618- 1. 5  ± 42%| = 0. 118  ± 42% 5. 45-year-old male: |1. 618- 1. 5  ± 42%| = 0. 118  ± 42% Percentage Error: Difference1. 18 x100=Percentage difference between result and Phi 1. 4-year-old female: 0. 382  ± 75%/1. 618 x 100 = 23. 6  ± 17. 7% 2. 8-year-old male: 0. 118  ± 42%/1. 618 x 100 = 7. 3  ± 3. 1% 3. 18-year-old female: 0. 418  ± 37%/1. 618 x 100 = 25. 8  ± 9. 5% 4. 18-year-old male: 0. 118  ± 42%/1. 618 x 100 = 7. 3  ± 3. 1% 5. 45-year-old male: 0. 118  ± 42%/1. 618 x 100 = 7. 3  ± 3. 1% AVERAGE: 23. 6 ±17. 7% + 7. 3  ±3. 1% + 25. 8  ±9. 5% + 7. 3  ±3. 1% + 7. 3  ±3. 1%/5= 14. 3  ± 36. 5% ANALYSIS: With this ratio, 3 of the results come out with a

Thursday, November 7, 2019

Free Online Math Resources and Tools for Students - Paperell

Free Online Math Resources and Tools for Students Free Math Resources and Tools for Undergraduate Students Table of contentAlgebraGeometryTrignometryPre-calculusCalculusOrdinary Differential EquationsLinear and Matrix AlgebraDiscrete MathematicsNumber TheoryNumerical AnalysisProbability TheoryStatisticsOver the past years, we have encountered thousands of students who’ve had academic struggles of all sorts – math being the scariest of all.   We’ve noticed most of their troubles originate from elementary school, where they simply didn’t pay enough attention to topics such as algebra or geometry. This often results in not understanding several other topics such as calculus for college further down the line. This snowball effect causes students to become lost in a course and inevitably results in the student hating or becoming disinterested in the subject.While most people realize how important math is, often times people are unable to grasp some basic concepts that may come in handy when they least expect it – not everyone will find ordinary differential equations practical in life, but many aspects of statistics have real life applications. Some students who major in fields completely unrelated to Math, are so out of practice they even require a calculator to hash out basic arithmetic. Even though many students do not need the subject in their daily life, they are helpless without the use of online tools when they encounter math problems in the real world.On the other hand, there are people who excel at Math who have no problem blowing through a discrete mathematics course, yet, they would love to save time by using automated tools. We all know someone who is clever at finding tricks and lifehacks out of a situation. Skilled, yet lazy students will often find the path of least resistance in the most creative ways. We care about every student out there, which is why we’ve decided to simplify their lives by compiling this list of useful Math resources for students. You can find anything here, starting from a simple calculator , to mind-blowing tricks from the greatest professors.We hope you find the following tools useful, whether you are studying humanities and need to pass that dreaded requirement in trigonometry or an engineering student who needs to brush up on numerical analysis we have organized some useful resources for you.Disclaimer for using tools: we highly recommend not to use automated tools (calculators, graph makers, etc.) unless you want check yourself or got lost in calculations; in all other cases, the best decision for you will be to go back and learn the topic.AlgebraOnline courses12-chapter College Algebra course (free for 30 days)Full College Algebra video course by Missouri State UniversityCollege Algebra course by Saylor Academy with tests and final examStep-by step equation solversEquation and Inequalities solver by SymbolabEquation system solverGraph buildersDesmos’ Graphing CalculatorGraphSketchMath Is Fun Equation GrapherGeometryLearning materialsâ€Å"Geometry† by Ron Larson, Laurie Boswell and Lee StiffIntroduction to Euclidean geometry by Khan AcademyAll formulas, problems and practical tasksCalculatorsCalculators for plane, solid and conic geometry shapes by SymbolabTrigonometryShort Trigonometry Course by Clark UniversityExample questions on TrigTriangle Theorems CalculatorTrigonometric functionsTopics in TrigPre-CalculusGraphing Calculator HelpPre-Calculus lectures with explanationPre-Calculus topics before college math coursesPre-Calcus Formula SheetCalculusCalculus for beginnersInteractive video course by SchoolYourself (Flash Player needed)MIT coursesCalculus with TheoryCalculus with ApplicationsSingle Variable CalculusMultivariable CalculusProblem solversTypical problems and their solutionsCalculus calculators from MathPortalOrdinary Differential EquationsOrdinary Differential Equations (Lecture Notes) By J. MuscatMethods for ODEODE using computer algebraic systemODE calculatorLinear and Matrix AlgebraLearning resourcesLecture by Texas AM UniversityComplete course by Khan AcademyToolsMatrix Determinant CalculatorMatrix Equation CalculatorDiscrete MathematicsFull course by Shai Simonson from Stonehill College with lectures notes, problem sets and examsUndergraduate Seminar in Discrete Mathematics, MIT OpenCourseWareDiscrete Mathematics CalculatorsNumber Theory26 lecture notes from MITIntroduction to number theory The Open UniversityNumerical AnalysisLectures on Numerical AnalysisCourse from MITProbability TheoryWhat is Probability Video resourceFundamentals of probabilityIntro to ProbabilityStatisticsJamie DeCoster’s introductory statistics lectures at Purdue UniversityLarge collection of statistics calculators

Tuesday, November 5, 2019

Octopus Facts

Octopus Facts Octopuses (Octopus spp.) are a family of cephalopods (a subgroup of marine invertebrates) known for their intelligence, their uncanny ability to blend into their surroundings, their unique style of locomotion, and their ability to squirt ink. They are some of the most fascinating creatures in the sea, found in every ocean in the world, and every continents coastal waters. Fast Facts: Octopus Scientific Name: Octopus, Tremoctopus, Enteroctopus, Eledone, Pteroctopus, many othersCommon Name: OctopusBasic Animal Group: InvertebrateSize: 1 inch–16 feetWeight: 1 gram–600 poundsLifespan: One to three yearsDiet:  CarnivoreHabitat: Every ocean; coastal waters in every continentPopulation: There are at least 289 species of octopuses; population estimates are not available for anyConservation Status: Not listed. Description The octopus is essentially a mollusk that lacks a shell but has eight arms and three hearts. Where cephalopods are concerned, marine biologists are careful to distinguish between arms and tentacles. If the invertebrate structure has suckers along its entire length, its called an arm; if it only has suckers at the tip, its called a tentacle. By this standard, most octopuses have eight arms and no tentacles, while two other cephalopods, cuttlefish and squids, have eight arms and two tentacles. All vertebrate animals have one heart, but the octopus is equipped with three: one that pumps blood through the cephalopods body (including the arms), and two that pump blood through the gills, the organs that enable the octopus to breathe underwater by harvesting oxygen. And theres another key difference, too: The primary component of octopus blood is hemocyanin, which  incorporates atoms of copper, rather than hemoglobin, which incorporates atoms of iron. This is why octopus blood is blue rather than red. Octopuses are the only marine animals, apart from whales and pinnipeds, that demonstrate primitive problem-solving and pattern recognition skills. But whatever kind of intelligence these cephalopods possess, its different from the human variety, probably closer to a cat. Two-thirds of an octopuss neurons are located along the length of its arms, rather than its brain, and theres no convincing evidence that these invertebrates are capable of communicating with others of their kind. Still, theres a reason so much science fiction (such as the book and movie Arrival) feature aliens vaguely modeled on octopuses. Octopus skin is covered by three types of specialized skin cells that can quickly change their color, reflectivity, and opacity, allowing this invertebrate to easily blend in with its surroundings. Chromatophores are responsible for the colors red, orange, yellow, brown, and black; leucophores mimic white; and iridophores are reflective, and thus ideally suited to camouflage. Thanks to this arsenal of cells, some octopuses can make themselves indistinguishable from seaweed. Fleetham Dave / Perspectives / Getty Images Behavior A bit like an undersea sports car, the octopus has three gears. If its in no particular hurry, this cephalopod will walk lazily with its arms along the ocean bottom. If its feeling a bit more urgent, it will actively swim by flexing its arms and body. And if its in a real hurry (say, because it has just been spotted by a hungry shark), it will expel a jet of water from its body cavity and zoom away as fast as it possibly can, often squirting a disorienting blob of ink at the same time. When threatened by predators, most octopuses release a thick cloud of black ink, composed primarily of melanin (the same pigment that gives human beings their skin and hair color). This cloud is not simply a visual smoke screen that allows the octopus to escape unnoticed; it also interferes with predators sense of smell.  Sharks, which can sniff small droplets of blood from hundreds of yards away, are especially vulnerable to this type of olfactory attack. Marevision / age fotostock / Getty Images Diet Octopuses are carnivores, and the adults feed on small fishes, crabs, clams, snails, and other octopuses. They typically forage alone and at night, pouncing on their prey and wrapping it in the webbing between their arms. Some octopuses use venom of varying levels of toxicity, which they inject into its prey with a beak similar to a birds; they can also use their beaks to penetrate and crack hard shells. Octopuses are night hunters, and they spend some of their daylight time in dens, generally holes in shell beds or another substrate, vertical shafts sometimes with multiple openings. If the sea floor is stable enough to permit it, they can be as deep as 15 inches or so. Octopus dens are engineered by a single octopus, but they can be reused by later generations and some species are co-occupied by male and female for a few hours.   In laboratory situations, octopuses build dens out of shells (Nautilus, Strombus, barnacles), or artificial terracotta flower pots, glass bottles, PVC tubes, custom blown glass- basically, whatever is available.   Some species have den colonies, clustered in a particular substrate. The gloomy octopus (O. tetricus) lives in communal groups of about 15 animals, in situations where there is ample food, many predators, and few opportunities for den sites. Gloomy octopus den groups are excavated into shell middens, a pile of shells built by the octopuses from prey.   Reproduction and Offspring Octopuses have very short lives, between one and three years, and they are dedicated to raising the next generation. Mating occurs when the male approaches the female: One of his arms, typically the third right arm, has a special tip called hectocotylus which he uses to transfer sperm to the females oviduct. He can fertilize multiple females and females can be fertilized by more than one male.   The male dies shortly after mating; the female looks for a suitable den site and spawns a few weeks later, laying the eggs in festoons, chains which are attached to rock or coral or to the walls of the den. Depending on the species, there can be hundreds of thousands of eggs, and before they hatch, the female guards and cares for them, aerating and cleaning them until they hatch. Within a few days, after they hatch, the mother octopus dies.   Some benthic and littoral species produce a smaller number of larger eggs which house a more highly developed larva. The tiny eggs produced in the hundreds of thousands begin life as plankton, basically, living in a plankton cloud. If they are not eaten by a passing whale, the octopus larva feeds on copepods, larval crabs, and larval seastars, until they are developed enough to sink down to the bottom of the ocean.   An octopus mother fiercely guards her den.   Getty Images Species There are nearly 300 different species of octopus identified to date- more are being identified every year. The largest identified octopus is the giant Pacific octopus (Enteroctopus dofleini), the full-grown adults of which weigh about 110 pounds or so and have long, trailing, 14-foot-long arms and a total body length of about 16 feet. However, there is some tantalizing evidence of larger-than-usual Giant Pacific octopuses, including one specimen that may have weighed as much as 600 pounds. The smallest (so far) is the star-sucker pygmy octopus (Octopus wolfi), which is smaller than an inch and weighs less than a gram. Most species average the size of the common octopus (O. vulgaris) which grows to between one and three feet and weighs 6.5 to 22 pounds. This bioluminescent pelagic octopus is in the Red Sea at night. Jeff Rotman/Photolibrary/Getty Images Conservation Status None of the octopi are considered endangered by either the International Union for Conservation of Nature (IUCN) or the ECOS Environmental Conservation Online System. The IUCN has not listed any of the octopuses. Sources Anderson, Roland C., Jennifer A. Maher, and James B. Wood. Octopus: The Oceans Intelligent Invertebrate. Portland, Oregon: Timber Press, 2010.  Bradford, Alina. Octopus Facts. Live Science / Animals, June 8, 2017.Caldwell, Roy L., et al. Behavior and Body Patterns of the Larger Pacific Striped Octopus. PLOS One 10.8 (2015): e0134152. Print.Courage, Katherine Harmon. Octopus! The Most Mysterious Creature in the Sea. New York: Penguin Group, 2013.  Leite, T. S., et al. Geographic Variability of Octopus Insularis Diet: From Oceanic Island to Continental Populations. Aquatic Biology 25 (2016): 17-27. Print.Lenz, Tiago M., et al. First Description of the Eggs and Paralarvae of the Tropical Octopus, Octopus Insularis, under Culture Conditions. BioOne 33.1 (2015): 101-09. Print.Octopuses, Order Octopoda. The National Wildlife Federation.Octopus Fact Sheet. World Animal Foundation.Scheel, David, et al. Octopus Engineering, Intentional and Inadvertent. Communicative Integrative Biology 1 1.1 (2018): e1395994. Print

Sunday, November 3, 2019

Medical Management and Healthcare Information Systems Case Study

Medical Management and Healthcare Information Systems - Case Study Example rmation often becomes fragmented and disorganized in a setting where there is still only manual tracking, and there is much greater likelihood in this situation that vital information may be lost, delayed, or result in errors in care. Ending these delays through technology is a main gain for the new system. The organization also faces challenges because today’s healthcare environment is one that is quickly changing as new technology is constantly being adopted, and this technology brings risks as well as rewards. Patient privacy and confidentiality also remain relevant concerns from an ethical as well as a legal perspective in the healthcare environment. In today’s healthcare setting, â€Å"Computer systems designed for clinical use apply technology that is protective of data. In addition, an electronic patient record is backed up according to hospital policy†¦ and as the chart is modified by caregivers, those changes are automatically saved and an audit trail created† (Ford et al., 2005). But at the same time, this efficient means of keeping data could lead to possible compromises in patient confidentiality, because even encryption and passwords are not fool proof security systems. As noted above, client confidentiality is one possible barrier to a new electronic tracking system based on EHR. Many facilities are taking advantage of new technologies and systems to improve client care and make the organization and its professional caregivers work faster, better, and with more efficiency. One of these new technologies, developed in the last few decades and getting into common use presently and at the forefront of change at the organization in the case, is the use of the electronic health records, or EHR. EHR are used by many different types of healthcare delivery systems, from large capacity hospitals, to private practice. By definition, â€Å"To be defined as an Electronic Health Record, an electronic approach to collecting storing and manipulating data