Saturday, December 14, 2019
Pros and Cons in Teenage Pregnancy Free Essays
How to prevent teen pregnancy has been a question for many years. Many people take having a baby as a joke. Getting pregnant and having a child involves many prose and cons. We will write a custom essay sample on Pros and Cons in Teenage Pregnancy or any similar topic only for you Order Now In the prevention of teen pregnancy there are many things that can be helpful. There are also other helpful ways to prevent teen pregnancy, such as sex education and birth control. All of these things are essential in the prevention of teen pregnancy. Refraining from sexual activities is a great way to prevent teen pregnancy, and the risk of getting a disease. In the past years less sex and more condoms use has meant lower rates of teenage pregnancy and sexually transmitted disease. Most teens have sex because of their friends being sexually active. The percentage of sexually active males declined from 57.4 percent to 48.8 percent, essentially erasing the gender gap. A National Survey of Family Growth stated that teens are having less sex. Avoiding sex and learning more about sex are good ways to assure your knowledge and decrease teen pregnancy. Traditionally children have received information about sexuality from their parents, church, friends, their doctors, and many other people. Many young teens learn about their bodies first. Many people believe that sex education being taught in schools assures children of correct and complete information about sexuality. Sex education starts in the primaries and continues through the secondary school. At the primary school stage, sex education teaches children about their bodies and attempts to promote a whole attitude towards the self-development process. During these years teachers attempt to correct any false ideas children may have learned about sex. At the beginning of secondary school teachers try to prepare students for puberty. For example, the children learn about nocturnal emissions, menstruation and changes that will take place in their bodies, they also learn and study reproduction. Further up the school, most young adultâ⬠s interest in sex increases, so they learn more about responsibility, and having relationships between members of the opposite sex. In secondary school, pupils learn more about the social and psychological aspects of sexuality. Many other subjects come up at this time in a teenagerâ⬠s life, such as marriage, abortion, homosexuality, birth control, and other topics. Sex education is very importance to the teenage generation. Birth control is the control of birth or of childbearing by deliberate measures to control or prevent conception, contraception. An understanding of birth control requires some knowledge of human reproduction. Sexually, coming from a man millions of sperm are released into the womanââ¬â¢s vagina. If an egg is there sperm travelling through a womanââ¬â¢s fallopian tube will be fertilised by the sperm. Most birth control methods are made to prevent contraceptives. The most effective contraceptive method is surgical sterilisation. In many developing nations hormone drugs are injected into the body. Studies show that those methods are becoming effective, because the teenage pregnancy rate has dropped by 11%. Birth control is important to teenagers, and they should be used if a teen should become sexually active. Parents should remember to teach their children about birth control always, just in case a teenager should become curious and decide to have sex. In conclusion a teen pregnancy has a hard effect on society, in many ways. Most teen pregnancies were not planned. Surveys say about 65% of teen pregnancyââ¬â¢s were not even discussed with their sexual partners. All of the other percentage of teen pregnancyââ¬â¢s were not planned either, but it had been discussed with the teenagers sexual partner at some point in time. Most teenagers begin having sex without knowing the consequences. Teenagers need to take responsibility and remember to keep safe, because there are various ways to prevent teen pregnancy, for example abstinence, sex education, and various types of birth control. How to cite Pros and Cons in Teenage Pregnancy, Papers
Friday, December 6, 2019
Age Discrimination free essay sample
The Introduction: Age discrimination in the workplace is more prevalent than many would care to believe. Older workers tend to be more expensive and take more time off from work, with this in mind it is not surprising that age discrimination has become one of the most common forms of discrimination in employment. While this form of discrimination is technically prohibited by statute, it is also by far the most difficult to enforce. Age discrimination differs from most discrimination laws in the fact that it must be proven that age was the dominant factor as opposed to simply being a factor. In this paper I will analyze the Age Discrimination in Employment Act of 1967 by exploring its history, and analyzing four unique cases filed under the ADEA. 1 These cases will consist of one general age discrimination case, one that shows the difference between state and federal enforcement, a supreme court case that discusses state sovereignty, and finally a case from which the prima facie test that most age discrimination cases use in transferring the burden of proof. Finally I will conclude with opinions on the effectiveness of the law. The Age Discrimination in Employment Act of 1967 (ADEA) was put in place to prevent the discrimination of aging workers by employers, by providing protective class status to both men and women in the workplace over the age of 40 years old. Similar to most labor laws and those under Title VII, the enforcement of the ADEA was the responsibility of the EEOC and followed the same procedures as the previously mentioned laws. Petitioners must first obtain a right a right to sue letter from the EEOC, before filing suit. Upon the receipt of the right to sue letter from the EEOC the plaintiff must then file their compliant within 90 days. History: The Age Discrimination in Employment Act of 1967 was introduced after a recommendation from President Lyndon B. Johnson after a secretary of labor statistical report that indicated that age discrimination for older workers was problem. Analysis showed that while unemployment for older workers was less than for younger workers, the period of time that the unemployed over a certain age remained unemployed was significantly longer than those in younger age brackets. In age discrimination cases, similar to other discrimination cases the compliant has the burden of establishing a prima facie case. Most age discrimination cases use prior case McDonnell Douglas Corp. v. Green, a racial discrimination case from 1973 as a comparison in meeting prima facie requirements. In order to meet prima facie requirements and shift the burden of proof to the employer the petitioner must show (i) they belong to the protected class, in this case over 40 years of age; (ii) that they applied for and were qualified for the job; (iii) that despite their qualifications they were rejected; (iv) and after their rejection the company continued to seek applicants with similar qualifications. If the plaintiff is able to establish a prima facie case the burden of proof then shifts to the defendant to provide a rebuttal as to why the plaintiffââ¬â¢s age was not a deciding factor, which then shifts the burden of proof back to the plaintiff to refute the defendants defense. Case Analysis: Robert R. Monaco, v. American General Assurance Company: One important and recent case filed under the Age Discrimination in Employment Act is the case of Robert R. Monaco, v. American General Assurance Company. In the case Monaco is laid off from his position as Vice President of the Eastern Region for American General Assurance Company after their purchase of United States Life and upon a companywide decision to reduce their workforce as a result of eliminating a line of business that was not profitable. 4 In 1999, Monaco was 53 years old when he was laid off from his position as Vice President of the Eastern Region of the company. Company management did not fill the position instead they assigned Monacoââ¬â¢s responsibilities to Robert Shaw vice president that covered the west region. Robert Shaw was 55 years old at the time. In 2000, AGAC hired Tom Mckellar who assumed Monacoââ¬â¢s former duties in addition to other senior management duties. Monaco filed suit claiming age discrimination in 2001. 5 Monacoââ¬â¢s case show a unique aspect of the age discrimination laws in the United States in that many states have differing requirements of proof. Monacoââ¬â¢s case was tried in New Jersy under the New Jersey Law Against Discrimination (NJLAD), under which Monaco contended that prima facie requirements are less rigid in their application. While it was established that Monaco met the first three requirements of a prima facie case the court granted the defendants motion for summary judgment because Monaco was unable to meet the fourth condition and prove that his age was the decisive factor in his dismissal. 6 As mentioned earlier this burden differs from most discrimination laws which allow for race or sex to merely be one of many reasons for job discrimination. 7 Zippittelli v. J. C. Penny Co. Another case that exemplifies the difficulty in establishing a prima facie case of age discrimination is the case of Zippittelli v. J. C. Penny Co. , in which Joanne Zippittelli a long time J. C. Penny call center employee files suit against the company claiming that she was passed over on multiple promotions as a result of her age and sex. For this paper I will focus only on the age discrimination portion of the case. In the case, the plaintiff applied several times for promotions that she felt she was more than qualified for. She was promoted once over the course of the seven years from 1990-1997 despite frequent requests and continued employment with J. C. Penny. 8 The plaintiff contends in the case that she was passed over for promotion multiple times and that she on all occasions felt that she was passed over either due to her age, she was 66 at the time of suit, or because of her sex. However, the court found that these past cases could not be tried as the period of 300 days statute of limitations had passed. Therefore only the most recent of the instances would be considered in this case. The complaint of this case occurs in 2004 when the plaintiff and three additional women applied for the position of shift operations manager. There were two interviews that were conducted to rank and determine who would be given the position. Upon the completion of the interview process the plaintiff assumed that she would be given the position, however the position was given to Patti Cruishank a woman under the age of 40. 10 When we again reference McDonnell Douglas Corp. Green, and apply the prima facie test to the case we find that the plaintiff is able to meet these standards. 11 The plaintiff is able to establish that she is (i) a member of the protected class, being 63 at the time of the incident, (ii) it was established that she applied and was qualified for the job as her manager encouraged her to apply, (iii) the plaintiff was denied the position, (iv) and it was given to a significantly younger unprotected class. The court found that therefore she had successfully transferred the burden of proof toà the defense. 12 However the defense argued that they had legitimate non-discriminatory reasons for not promoting the plaintiff, and the court agreed transferring the burden back to the plaintiff to establish further that the companyââ¬â¢s decision was made primarily on her age. The court dismissed the case finding that the plaintiff had not met the burden of proof to prove that her not receiving the promotion was based on her age. 13 This cas e further exemplifies the difficulty that plaintiffs face in proving age discrimination. Even as the plaintiff in this case proved a prima facie case and transferring the burden of proof, the defense was able to transfer the proof back with a simple denial that age was involved in the selection process and without direct proof to discredit this defense the case was dismissed. Kimel v. Florida Board of Regents: Kimel v. Florida Board of Regents, provides clarity in the issue of the 11th amendment which grants state sovereignty and 14th amendment specifically section 5, which was meant to allow the enforcement of civil rights laws after the Civil War and there effects on the ADEA. The 11th amendment of the US constitution passed in 1794, reads as follows and was meant to protect the sovereign rights of the states: The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State. 15 The 14th amendment was passed in 1896 following the civil war in order to allow for the enforcement of civil rights legislation. However, in the case Kimel v. Florida Board of Regents, the Supreme Court of the United States provided clarity in the application of both the 11th and 14th amendments in regards to the ADEA and its use against the state by those they employ. In the case three sets of petitioners filed suit against the Florida Board of Regents claiming discrimination on the bases of their age. One of the cases was dismissed under the basis of statesââ¬â¢ rights under the 11th amendment. The remaining two cases, however dismissal was denied. All three where consolidated together and brought before the United States Supreme Court to decide if the ADEA could supersede a states 11th amendment rights. 16 A two part test is used to determine if the ADEA was meant to abrogate state rights under the 11th amendment. 1) Did congress intend to authorize suits against individual states? 2) Did congress in spite of their intent do so with a valid constitutional authority? The court found that while it is clear in the laws language that they intended for local and state governments to be included should suits arise, the language in the 14th amendment specifically section 5 does not specifically name protected classes and therefore this is left to be determined by the courts. The courts found that age did not have the same standing as race or gender and therefore would not be included under the 14th amendment. The court further added weight to their decision, claiming that all states have individual age discrimination laws in place that allow for the filing of suits against the state and local governments. McDonnell Douglas Corp. v. Green Since the McDonnell Douglas Corp. v. Green, case is often referenced in age discrimination cases for its use of the prima facie burden of proof transfer it is important to understand the origins and story behind this case. The surprising factor about this case is that the case has no bases in age discrimination. The case is instead a case filed against McDonnell Douglas Corp. claiming race discrimination under the Civil Rights Act of 1964, saying that the defendant may have violated 703(a)(1), which prohibits discrimination in any employment decision. This case is important as the Supreme Court used it to establish a procedure for cases that rely mainly on circumstantial evidence. 19 In the McDonnell Douglas case Percy Green was laid off from his position as a mechanic as part of companywide reduction in workforce. After being laid off, Green took part several illegal demonstrations that included blocking access to other workers at McDonnell Douglas by use of cars blocking roadways and a lock out. Three weeks later McDonnell Douglas placed an ad for a mechanic position. Green applied to the position and was denied employment, for which he filed suit claiming racial discrimination. From this case we can trace the establishment of a three step establish of burden of proof where; 1) the plaintiff must prove a prima facie case, 2) the defendant must rebut as the burden of proof has shifted, and 3) the burden shifts back to the plaintiff to provide proof that the defendants rebuttal is untrue. 21 Conclusion: In conclusion, I found that while age discrimination obviously exists and takes place in the workplace, it is extremely difficult to successfully pursue remedy through the Age Discrimination in Employment Act. Of all of the protected classes under labor law and civil right laws the older worker is by far the least protected. Not only must a victim of age discrimination prove a prima facie case, often the most difficult part of pursuing a age discrimination case comes when the burden of proof shifts back to the plaintiff and they must demonstrate that age was the decisive reason behind the employment decision. This differs from all other protected classes, which only need prove that gender, race, or religion where factors and they need not be the decisive factor. The truth is older workers cost more money to employ. Older workers demand higher wages, require more time off, and are more likely to cost the company more money from an insurance stand point. Older workers need to continually develop in their careers in order to ensure that they are bringing irreplaceable skills and value to the business in order to ensure that they remain with the company and do not become a cost cutting measure, as the likelihood of proving and receiving remedies for age discrimination are not likely.
Friday, November 29, 2019
The Human Brain Essays - Neuroanatomy, Central Nervous System
The Human Brain THE HUMAN BRAIN The human body is divided into many different parts called organs. All of the parts are controlled by an organ called the brain, which is located in the head. The brain weighs about 2.75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control center of the body. The brain flashes messages out to all the other parts of the body. The messages travel in very fine threads called nerves. The nerves and the brain make up a system somewhat like telephone poles carrying wires across the city. This is called the nervous system. The nerves in the body don't just send messages from the brain to the organs, but also send messages from the eyes, ears, skin and other organs back to your brain. Some nerves are linked directly to the brain. Others have to reach the brain through a sort of power line down the back, called the spinal cord. The brain and spinal cord make up the central nervous system. The brain doesn't just control your organs, but also can thi nk and remember. That part of the brain is called the mind. Twenty-eight bones make up the skull. Eight of these bones are interlocking plates. These plates form the cranium. The cranium provides maximum protection with minimum weight, the ideal combination. The other twenty bones make up the face, jaw and other parts of the skull. Another way the brain keeps it self safe is by keeping itself in liquid. Nearly one fifth of the blood pumped by the heart is sent to the brain. The brain then sends the blood through an intricate network of blood vessels to where the blood is needed. Specialized blood vessels called choroid plexuses produce a protective cerebrospinal fluid. This fluid is what the brain literally floats in. A third protective measure taken by the brain is called the blood brain barrier. This barrier consists of a network of unique capillaries. These capillaries are filters for harmful chemicals carried by the blood, but do allow oxygen, water and glucose to enter the brain. The brain is divided into three main sections. The area at the front of the brain is the largest. Most of it is known as the cerebrum. It controls all of the movements that you have to think about, thought and memory. The cerebrum is split in two different sections, the right half and the left half. The outer layer of the cerebrum is called the cortex. It is mainly made up of cell bodies of neurons called grey matter. Most of the work the brain does is done in the cortex. It is very wrinkled and has many folds. The wrinkles and folds give the cortex a large surface area, even though it is squeezed up to fit in the skull. The extra surface area gives the cerebrum more area to work. Inside the cortex, the cerebrum is largely made up of white matter. White matter is tissue made only of nerve fibres. The middle region is deep inside the brain. It's chief purpose is to connect the front and the back of the brain together. The back area of the brain is divided into three different parts. T he cerebellum sees to it that all the parts of your body work as a team. It also makes sure you keep your balance. The thalamus is located in between above the lower brain and under the two hemispheres. THE DIFFERENT SECTIONS OF THE BRAIN: Most of the above mentioned parts of the brain were produced early in evolution but the higher mammals, especially humans went on to produce a sort of thinking cap on top of these parts. This thinking cap was divided into two different parts, the left hemisphere and the right hemisphere. If the left side of your brain is more developed like most people's are, you are right handed. On the other hand if the right side of your brain is more developed, then you will be left handed. The right side of your brain is more artistic and emotional while the left side of your brain is your common sense and practical side, such
Monday, November 25, 2019
Understanding Atomic Radius Trends The 2 Key Principles
Understanding Atomic Radius Trends The 2 Key Principles SAT / ACT Prep Online Guides and Tips Need information on atomic radius trends? What's the trend for atomic radius? In this guide, weââ¬â¢ll clearly explain atomic radius trends and how they work. Weââ¬â¢ll also discuss exceptions to the trends and how you can use this information as part of a broader understanding of chemistry. Before we dive into atomic radius trends, letââ¬â¢s review some basic terms. An atom is a basic unit of a chemical element, such as hydrogen, helium, potassium, etc. A radius is the distance between the center of an object and its outer edge. An atomic radius is one-half the distance between the nuclei of two atoms. Atomic radii are measured in picometers (one picometer is equal to one trillionth of a meter). Hydrogen (H) has the smallest average atomic radius at about 25 pm, while caesium (Cs) has the largest average radius at about 260 pm. What Are the Atomic Radius Trends? What Causes Them? There are two main atomic radius trends. One atomic radius trend occurs as you move left to right across the periodic table (moving within a period), and the other trend occurs when you move from the top of the periodic table down (moving within a group). Below is a periodic table with arrows showing how atomic radii change to help you understand and visualize each atomic radius trend. At the end of this section is a chart with the estimated empirical atomic radius for each element. Atomic Radius Trend 1: Atomic Radii Decrease From Left to Right Across a Period The first atomic radius periodic trend is that atomic size decreases as you move left to right across a period. Within a period of elements, each new electron is added to the same shell. When an electron is added, a new proton is also added to the nucleus, which gives the nucleus a stronger positive charge and a greater nuclear attraction. This means that, as more protons are added, the nucleus gets a stronger positive charge which then attracts the electrons more strongly and pulls them closer to the atomââ¬â¢s nucleus. The electrons being pulled closer to the nucleus makes the atomââ¬â¢s radius smaller. Comparing carbon (C) with an atomic number of 6 and fluorine (F) with an atomic number of 9, we can tell that, based on atomic radius trends, a carbon atom will have a larger radius than a fluorine atom since the three additional protons the fluorine has will pull its electrons closer to the nucleus and shrink the fluorine's radius. And this is true; carbon has an average atomic radius of about 70 pm while fluorineââ¬â¢s is about 50 pm. Atomic Radius Trend 2: Atomic Radii Increase as You Move Down a Group The second atomic radius periodic trend is that atomic radii increase as you move downwards in a group in the periodic table. For each group you move down, the atom gets an additional electron shell. Each new shell is further away from the nucleus of the atom, which increases the atomic radius. While you may think the valence electrons (those in the outermost shell) would be attracted to the nucleus, electron shielding prevents that from happening. Electron shielding refers to a decreased attraction between outer electrons and the nucleus of an atom whenever the atom has more than one electron shell. So, because of electron shielding, the valence electrons donââ¬â¢t get particularly close to the center of the atom, and because they canââ¬â¢t get that close, the atom has a larger radius. As an example, potassium (K) has a larger average atomic radius (220 pm)than sodium (Na) does (180 pm). The potassium atom has an extra electron shell compared to the sodium atom, which means its valence electrons are further from the nucleus, giving potassium a larger atomic radius. Empirical Atomic Radii Atomic Number Symbol Element Name Empirical Atomic Radius (pm) 1 H Hydrogen 25 2 He Helium No data 3 Li Lithium 145 4 Be Beryllium 105 5 B Boron 85 6 C Carbon 70 7 N Nitrogen 65 8 O Oxygen 60 9 F Fluorine 50 10 Ne Neon No data 11 Na Sodium 180 12 Mg Magnesium 150 13 Al Aluminum 125 14 Si Silicon 110 15 P Phosphorus 100 16 S Sulfur 100 17 Cl Chlorine 100 18 Ar Argon No data 19 K Potassium 220 20 Ca Calcium 180 21 Sc Scandium 160 22 Ti Titanium 140 23 V Vanadium 135 24 Cr Chromium 140 25 Mn Manganese 140 26 Fe Iron 140 27 Co Cobalt 135 28 Ni Nickel 135 29 Cu Copper 135 30 Zn Zinc 135 31 Ga Gallium 130 32 Ge Germanium 125 33 As Arsenic 115 34 Se Selenium 115 35 Br Bromine 115 36 Kr Krypton No data 37 Rb Rubidium 235 38 Sr Strontium 200 39 Y Yttrium 180 40 Zr Zirconium 155 41 Nb Niobium 145 42 Mo Molybdenum 145 43 Tc Technetium 135 44 Ru Ruthenium 130 45 Rh Rhodium 135 46 Pd Palladium 140 47 Ag Silver 160 48 Cd Cadmium 155 49 In Indium 155 50 Sn Tin 145 51 Sb Antimony 145 52 Te Tellurium 140 53 I Iodine 140 54 Xe Xenon No data 55 Cs Caesium 260 56 Ba Barium 215 57 La Lanthanum 195 58 Ce Cerium 185 59 Pr Praseodymium 185 60 Nd Neodymium 185 61 Pm Promethium 185 62 Sm Samarium 185 63 Eu Europium 185 64 Gd Gadolinium 180 65 Tb Terbium 175 66 Dy Dysprosium 175 67 Ho Holmium 175 68 Er Erbium 175 69 Tm Thulium 175 70 Yb Ytterbium 175 71 Lu Lutetium 175 72 Hf Hafnium 155 73 Ta Tantalum 145 74 W Tungsten 135 75 Re Rhenium 135 76 Os Osmium 130 77 Ir Iridium 135 78 Pt Platinum 135 79 Au Gold 135 80 Hg Mercury 150 81 Tl Thallium 190 82 Pb Lead 180 83 Bi Bismuth 160 84 Po Polonium 190 85 At Astatine No data 86 Rn Radon No data 87 Fr Francium No data 88 Ra Radium 215 89 Ac Actinium 195 90 Th Thorium 180 91 Pa Protactinium 180 92 U Uranium 175 93 Np Neptunium 175 94 Pu Plutonium 175 95 Am Americium 175 96 Cm Curium No data 97 Bk Berkelium No data 98 Cf Californium No data 99 Es Einsteinium No data 100 Fm Fermium No data 101 Md Mendelevium No data 102 No Nobelium No data 103 Lr Lawrencium No data 104 Rf Rutherfordium No data 105 Db Dubnium No data 106 Sg Seaborgium No data 107 Bh Bohrium No data 108 Hs Hassium No data 109 Mt Meitnerium No data 110 Ds Darmstadtium No data 111 Rg Roentgenium No data 112 Cn Copernicium No data 113 Nh Nihonium No data 114 Fl Flerovium No data 115 Mc Moscovium No data 116 Lv Livermorium No data 117 Ts Tennessine No data 118 Og Oganesson No data Source: Webelements 3 Exceptions to the Atomic Radius Trends The two atomic radius trends we discussed above are true for the majority of the periodic table of elements. However, there are a few exceptions to these trends. One exception is the noble gases. The six noble gases, in group 18 of the periodic table, are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The noble gases are an exception because they bond differently than other atoms, and noble gas atoms don't get as close to each other when they bond. Because atomic radius is half the distance between the nuclei of two atoms, how close those atoms are to each other affects atomic radius. Each of the noble gases has their outermost electron shell completely filled, which means multiple noble gas atoms are held together by Van der Waals forces rather than through bonds. Van der Waals forces aren't as strong as covalent bonds, so two atoms connected by Van der Waals forces don't get as close to each other as two atoms connected by a covalent bond. This means the radii of the noble gases would be overestimated if we attempted to find their empirical radii, so none of the noble gases have an empirical radius and thus don't follow the atomic radius trends. Below is a very simplified diagram of four atoms, all about the same size. The top two atoms are connected by a covalent bond, which causes some overlap between the atoms. The bottom two atoms are noble gas atoms, and they are connected by Van der Waals forces that don't allow the atoms to get as close together. The red arrows represent the distance between the nuclei. Half of this distance is equal to atomic radius. As you can see, even though all four atoms are about the same size, the noble gas radius is much larger than the radius of the other atoms. Comparing the two radii would make the noble gas atoms look bigger, even though they're not. Including noble gas radii would give people an inaccurate idea of how big noble gas atoms are. Because noble gas atoms bond differently, their radii can't be compared to the radii of other atoms, so they don't follow atomic radius trends. Other exceptions include the lanthanide series and actinide series at the bottom of the periodic table. These groups of elements differ from much of the rest of the periodic table and donââ¬â¢t follow many trends the other elements do. Neither series has a clear atomic radius trend. How Can You Use This Information? While you probably wonââ¬â¢t need to know the atomic radius of various elements in your day-to-day life, this information can still be helpful if youââ¬â¢re studying chemistry or another related field. Once you understand each key atomic radius period trend, it makes it easier to understand other information about the elements. For example, you can remember that noble gases are an exception to the atomic radius trends because they have a full outer electron shell. These outer electron shells also make the noble gases inert and stable. That stability can be handy. For example, balloons are typically filled with helium, not hydrogen, because helium is much more stable and therefore less flammable and safer to use. You can also use atomic radii to estimate how reactive different elements will be. Atoms with smaller radii are more reactive than atoms with larger radii. The halogens (in group 17) have the smallest average radii in the periodic table. Fluorine has the smallest atomic radius of the halogens (which makes sense based on the trends), and that makes it highly reactive. Just adding fluorine to water will produce flames as the fluorine turns into a gas. Summary: Periodic Trends Atomic Radius There are two main atomic radius trends. The first atomic radius periodic trend is that atomic radii increase as you move downwards in a group. This is due to electron shielding. When an additional shell is added, those new electrons are farther from the atomââ¬â¢s nucleus, which increases atomic radius. The second atomic radius periodic trend is that atomic size decreases moving left to right across a period because the atomââ¬â¢s stronger positive charge due to having more protons attracts the electrons more strongly and pulls them closer to the nucleus, reducing the size of the atom. There are a few exceptions to these trends, noticeably the noble gases which donââ¬â¢t form bonds the way most other atoms do, and the lanthanide and actinide series. You can use this information to better understand the periodic table, how atoms bond, and why certain elements are more reactive than others.
Thursday, November 21, 2019
Innovation, Entrepreneurship and Management Essay
Innovation, Entrepreneurship and Management - Essay Example Implication of Current Global Financial Crisis on Innovation of Firms Since innovation relies on resource allocation in terms of research and development, it is likely to be affected by current global financial crisis (Nakagawa,pg.258). A closer scrutiny of various European firms has revealed a significant change in innovation investment amidst the economic crisis. A survey conducted in 2009, revealed significant shifts in innovation investments across various firms in Europe where innovation investment and expenditure in firms declined from 40.2 percent to 10.6 percent (Filippetti and Archibugi,pg.2). The reduction in innovation investment and expenditures was attributed to direct effects of global financial crisis and recession. The economic crisis and recession reduces the short-term willingness of firms to engage to invest in innovation due to adverse macroeconomic environment that firms operate within (Archibugi, Filippetti and Frenz,pg.2). The mode of financing channels for Eur opean enterprises has been through bank loans and stock and bond market. In fact, most European banks have reviewed and tightened their money supply regulation due to global financial crisis (Fasnacht,pg.73). ... Most firms rely on profits and extra revenues for their research and development initiatives. Since the global economic meltdown is directly related to earnings of companies, any slight reduction in companiesââ¬â¢ profits can affect their innovation approaches and incentives (Savona, Kirton and Oldani,pg.140). All business sectors and companies in Europe have felt the effect of the ongoing financial crisis in varying degrees thus leading to deterioration of their revenues and profitability. The reduction in financial results of European companies is linked to reduction in consumerism, export cut back or reduction and shifting demand in domestic consumers. Cash flow and increased profitability and revenues are crucial for the survival of companies in relation to engagement in innovative activities. Robust and increased cash inflow in terms of profitability and increased revenues provides the safest protection of companies to engage in innovation. Research and development initiative s in European firms have hence been affected by the ongoing global recession due to the fact that their commitments to innovation have been pegged on success in revenue and profit growth. On the other hand, the ongoing financial crisis and economic turmoil has not affected the commitment of other European companies to innovation. This is particularly evident in high performing businesses that continue to invest in innovation amidst the economic turmoil (Heinrich and Betts,pg.34). Although other firms and businesses have panicked and reduced investment on research and development, some high performing firms have remained calm and are continuing to invest in innovation even though there has been pressure for such companies to reduce capital expenses (Shahzad, Ullah and Azam,pg.6). The
Wednesday, November 20, 2019
Spacial topic Essay Example | Topics and Well Written Essays - 1250 words
Spacial topic - Essay Example 2. Operational decision makers- After creation of the business strategy, the objectives for the operation business process are established. 3. Reporting, controlling and analytical processes- The necessary information and data for the desired changes in operational managersââ¬â¢ behavior are identified and specified by the business analysts. 4. ELT developers and data base specialists- The data from data warehouses is gathered by the database specialist or the ETL (extract, transformation, and load) developer who make it assessable and usable to the front-end application of the business. 5. IT Professionals- In this layer, infrastructure run and develop the primary data is developed by generating sources or creating new data by the IT professionals. (Laursen & Thorlund, 2010) Chapter 2 Question1. Explain the process of business analytics at strategic level. Answer. The process of business analytics at strategic level could be explained by integration between the BA function and th e companyââ¬â¢s strategy. There are four different scenarios showing the degree of integration between business strategy and strategy: 1. Where no formal link exists between strategy and BA, the BA function is used on an ad hoc basis. 2. When the link between BA and strategy is coordinated, the BA function is purely reactive and there is no feedback procedure from BA to strategy. 3. When there is a formal feedback procedure from BA to strategy and strategy innovation is supported by BA. 4. Where the information is used as a strategic resource. It enables the information to be used to determine the strategy. (Laursen & Thorlund, 2010) Chapter 3 Question1. Explain the process of establishing a new business processes with the Rockart model? Answer. The process of establishing a new business processes with the Rockart model consists of the following stages: 1. Objectives- The first step is the identification of the objectives, i.e. to identify the aim and purpose of the information t o be developed. 2. Operational Strategy- The operational strategy to fulfill the objective is identified and implemented. 3. Critical Success Factors- A large number of activities are initiated by implementation of a strategy. Some of these activities are more critical than others. All such critical success factors should be identified. 4. Lead and Lag Information- The information at functional level can be broadly classified as: Lag information- The information which we choose to register on an ongoing basis is the lag information. Lead information- Lead information is created on the basis of lag information. It helps in monitoring and improving the existing or initiating processes. (Laursen & Thorlund, 2010) Chapter 4 Question1. What are the required competencies of a business analyst? Answer. A business analyst is a provider of methodology. A business analyst must meet the following requirements: 1. Business competencies- A business analyst must have the business competencies and should understand the business process properly. He or she must have the business insight. 2. Tool Kit must be in order- A business analyst should be able to deliver multiple information in same data and should be able to visualize the information as the user. 3. Technical understanding- The business analyst should have the technical understanding of the information which could be used in collection and presentation of data. (Laursen & Thorl
Monday, November 18, 2019
Problem Solving Essay Example | Topics and Well Written Essays - 2000 words
Problem Solving - Essay Example This is because there is no definite solution to a problem as all solutions lead to development of new problems and solutions. Problem solving techniques are on-going processes needed for the survival of an organisation. Halpern (2002) explains that problem solving techniques should be able to find and formulate the problem that affects the progress of an organisation, implement a decision, audit the results obtained from the decision made and review the obtained results to determine if they are appropriate. More effort, energy, time and money should be spent on the prior stages of problem solving techniques rather than on the later stages. However, most executives ignore this fact as they aim at acting quickly and decisively thereby creating a type III error (working on the wrong problem) (Paradies & Unger, 2002). Therefore, this report will discuss problems that curb the development of organisations and appropriate problem solving techniques that are used to eliminate this paradigm. This report will also analyse features of these problem solving techniques and the issues faced while applying them to the problems. Most organisations especially new business enterprises are faced with strategic planning problems. Such organisations are unable to appropriately define the strategy and direction of their firms. They are unable to formulate efficient decisions in distribution of the organisational resources such as capital and labour, a fact that affects their capability to strive in the stiff market competition (Bradford & Duncan, 2000). Most researches, studies and surveys that have been conducted show that most successful organisations implement the SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis into the culture of the organisation to strategically plan for the operations, decision making and resource distribution tactics. According to Lorenzen (2006), SWOT analysis comprises of the identification of organisation's objectives to determine internal and external factors which may enable or prevent the achievement of these objectives. The SWOT analysis was formulated by Albert Humphrey with the aim of helping business ventures to effectively identify areas for development by matching the strengths of the organisations to available opportunities and the weaknesses to potential threats that the organisation may face. This enabled organisations to attain competitive advantages over their counterpart business enterprises. In other words the SWOT analysis enables organisations to detect the threats and weaknesses of the organisation and convert them to strengths and opportunities that the organisation can utilise to increase its performance. Also organisations are able to effectively overcome these threats and weaknesses thereby attaining appropriate market control due to implementation of strategic plans into the culture of the organisation (Tracy, 2000). The internal factors comprise of the strengths and weaknesses that determine the accomplishment of objectives of an organisation for example the 4Ps, manufacturing capabilities and personnel among others. On the other hand the external factors comprise of opportunities and threats that an organisation faces such as technological changes, socio-cultural changes and the competitive position of the
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