Wednesday, October 30, 2019
4 questions Essay Example | Topics and Well Written Essays - 500 words - 3
4 questions - Essay Example Leadership has been in existence since the traditional times where people elected chiefs and warrior who represented smaller groups of people and has been developed to the kind of leadership today where people elect presidents and governors who represent larger groups. It is the study of knowledge application on action of people, individual actions, and group actions in an organisation. Organizational behavior therefore tends to interpret organizational relationships basing facts on an individual person, a group of individuals, or the whole social system. The purpose of organizational behavior is to improve the relationship among people in an organization by achieving all the objectives (human, organizational and social) at a go. An example of its application is a situation whereby the human resource manager carries out a research to understand the employees so that their personal objectives are achieved while at the same time the objectives of the organization are achieved. Most organizations operate according to the four models of organizational behavior which are autocratic, custodial supportive and collegialization. Politics dates back in the 17th century when leadership was introduced and the competition for the leadership position influenced the rise of politics. Politics can be defined as the influencing other people on a civil level or it can also refer to the process of controlling the community or state in an organized manner. Politics involve things such as influencing people to ones political views, making laws, exercising equality among the people and negotiation with other political subjects. The level of politics depends upon the number of people that the politician is leading and the power that the group has. An example of a political situation is the government of USA where Obama is the president and this is the highest rank of
Monday, October 28, 2019
Cytopathic Effects as a Result of Infection of E-coli
Cytopathic Effects as a Result of Infection of E-coli Analysis of cytopathic effects as a result of infection of Escherichia coli by T4 bacteriophage using spectrophotometry and plaque assay Abstract T4 bacteriophage is a double stranded DNA virus that infects Escherichia coli and is an important tool in research and study of genetics. It contains about 168,800 base pairs of DNA. It has an icosahedral capsid as its head that contains its nucleic acid and has a tail structure formed of tail fibres, sheath, base plates and coat. These different structures of T4-phage play important roles when invading the host cell (in this case E.coli). T4-bacteriophage infects the host cell by lytic pathway where the host cells are used to produce virus components and it results in the lysis of host cell releasing the virus components to the external membrane. This experiment plans to examine the cytopathic effects of the T4-phage on E.coli using a spectrophotometer. Also, plaque assay is carried out in order to determine the original concentration of phage in the solution. The spectrophotometer reading increased for both control and T4-infected cultures as the time of post infection increased. T he highest reading was 0.192 for control at 120 min pi. Introduction Viruses are small infectious agents and are about 10-30nm in size. Strelkauskas, et al (2010) describes viruses as ââ¬Å"obligate intracellular parasitesâ⬠which means they need a host cell in order to survive and replicate. The viruses are classified depending on their morphology, chemical composition and mode of replication. They are divided into two groups based on the nucleic acid they contain: DNA or RNA. They are sub-divided into further groups according to their symmetry of capsid where the genetic material is enclosed within an envelope or without an envelope (naked). Also, the configuration of the nucleic acid (single-stranded or double stranded and linear or circular) play a role in the classification of viruses (Gelderblom, 1996). A fully assembled infectious virus is known as a virion and its structure is based on two important things; the ability to survive in harsh conditions until it can infect the host cell and to be able to shed the protective barrier in order to enter a host cell. Bacteriophages are viruses that infect bacterial cells and were first observed in 1915 and 1917 by Twort and dââ¬â¢Herelle. T4 bacteriophage is a member of T-even phages and infects Escherichia coli (E.coli) bacteria. It is considered as one of the complex viruses because of its genome which consist of 274 open reading frames and 40 of these reading frames encodes for structural proteins (Leiman, et al, 2003). T4- bacteriophage has been extensively studied since 1940s and plays a major role in advancement of modern genetics and molecular biology. Some of the early essential ideas of genetics including the basis of genetics code, mRNA, ribosome and the codon have came from studies using T4-bacteriophages (Miller et al, 2003). T4- bacteriophage contains double stranded DNA as its nucleic acid which is enclosed within a protective coat known as capsid. Its capsid is icosahedral in shape (shown in figure 1). It also has tail part which is made up of coat, sheath, tail fibres and base plates. The tail part is useful when recognising a host cell followed by penetration to the host cell thus causing infection. Bacteriophages have two types of replication strategies: lytic cycle and lysogenic cycle (Baker, et al, 2011). Lysogenic infection in E.coli is exemplified by bacteriophage lambda where the viral DNA replication takes place without destroying the bacterial cell. Here, the virion infects the host cell and instead of triggering more virus reproduction, it recombines with the host genome causing no damage to the cell which is known as prophage. These viruses can remain dormant within the bacterial cell for years and only cause infection under certain circumstances. T4-bacteriophage is a virulent virus that causes lytic infection to E.coli. The first step in this cycle is adsorption where the virus recognises the cell receptors on the surface of the host cell and attaches itself to the host using its tail fibres. Once attached to the host cell, the virus must penetrate through the cell membrane of E.coli. The base plate of the virus comes in contact with the cell wall of the host cell ca using conformational change in structure of the virus. This allows the sheath to contract and the core is pushed through the wall into the cell membrane where the viral DNA is injected into the host cell (Todar, 2008). DNA viruses have the same genome configuration as the host cell; hence the replication process used in host cell can be used for viral replication. T4- bacteriophage transcribes nucleases that break down the bacterial DNA which is used to produce more viral genome. The newly made viral nucleic acid and structural proteins are assembled together to form virulent viruses. The lysozymes produced by the bacteriophages as a late viral protein lyses the cell wall of the E.coli causing it to burst open hence releasing virulent virus which have to potential to infect other cells. The lifecycle of a T4-bacteriophage takes about 25-35 minutes to finish (Mayer, 2010). Figure 1: The left picture shows the electron microscopic image of T4- bacteriophage and the right shows the model of the T4-bacteriophage. The head of the virus contains a capsid formed by icosahedral structure that holds the phageââ¬â¢s double stranded DNA. The collar connects the head and the tail structures. The tail consists of core, sheath, base plate and tail fibres which are involved in recognising host cells and then attaching phage to specific receptors on the host surfaces (Todar, 2008). The virus-infected bacterial cell generally shows some changes in their phenotype such as altered shape, detachment from the substrate, cell lysis, membrane fusion, membrane permeability, inclusion bodies and apoptosis. These changes are known as the cytopathic effects of a virus (Cann, 2005). In this experiment, the lysis of E.coli is examined using a spectrophotometer which determines the absorbance of the cultures to indicate the growth of the bacterial cell within the flasks. Also, it is important for clinical and research virologists to know the number of infectious virus particles in a sample which is known as the titre. The plaque assay gives the most accurate results when determining the titre of the phage. T4- bacteriophages can be grown on bacterial lawn. Infected E.coli cells are lysed so, they will form visible plaques on the agar plate which are counted to calculate the titre of the virus. The experiment aims to firstly infect the bacterial cells with T4-bacteriophage in order to indirectly observe the cytopathic effects of virus infection by monitoring changes in bacterial cell growth, compared to an uninfected (control) culture. An absorbance reading is taken using a spectrophotometry as the cells in the culture grow and divide making the culture opaque and thus increasing the absorbance of the culture. Also, the experiment plans to assess the progress of T4-phage production during the infection of E.coli by taking samples of extracellular virus at regular time intervals post infection. Furthermore, the virus from each samples were quantified using plaque assays to demonstrate the progress of virus amplification that occurred during the process of infection in the bacterial cells. Materials and methods E.coli was used as the host cell of T4-bacteriophages in the following experiments. Measuring the changing cell density of cultures using a spectrophotometer: Two cultures were made; the control culture (C) consists of mixture of LB broth and E.coli whereas the T4- infected culture (T) was made by mixing LB broth, E.coli and 100à ¼l of bacteriophage. The immediate absorbance readings at 0 seconds were measured in the spectrophotometer at wavelength 600nm and LB broth solution was used as a blank. The flasks containing the two cultures were placed in the orbital shaker covered with foil lids throughout the readings of absorbance. During the 1 hour incubation, 10 à µl of the T4-infected sample was placed in a C-chip Haemocytometer and the bacterial cells were counted under the microscope which was used to calculate the multiplicity of infection (MOI). After 1 hour incubation, the absorbance readings were taken at 15 minutes interval until the cultures had been monitored for at least 2 hours. Harvesting virus sample: At 40 min post infection, 1 ml of each of the cultures were taken out and placed into sterile microfuge tube. The tubes were centrifuged at 6,500 rpm for 5 min and 750 à µl of supernatant was removed from the T4-infected tube. It was then incubated over night and another sample was collected after 23.30 hours post infection. Preparation for plaque assay: A serial dilution of 10-7, 10-8 and 10-9 were made from the overnight T4-infected sample and dilution of 10-4, 10-5 and 10-6 were made from the 40 min p.i. T4-infected sample by using sterile M9 medium. 1 ml of E.coli culture was transferred to each of the two bottles containing 0.1 ml of the each diluted sample. The bottles were placed in water bath at 37à °C for 15 minutes for bacterial infections to begin. One small bottle of molten soft agar was taken from 42à °C bath and poured into labelled agar plates and evenly mixed with the bottle containing E.coli and diluted sample. This process was followed for all 6 agar plates. Then, the plates were incubated at 37à °C overnight after they were set completely. Plaque counts: After the incubation period, the agar plates were examined and the number of plaques formed on each plate were counted and recorded. Results The absorbance readings taken from the spectrophotometer at 600 nm of both the control and the T4-infected cultures is shown in table 1. At 0 min pi, both the cultures had similar readings (0.05 and 0.054 for C and T respectively) as they were just made. After one hour incubation period (60 min pi), there was increase in the absorbance for both of the cultures. However control had higher absorbance reading than T4-infected (0.106 and 0.064 respectively). Overall, the absorbance readings of both the cultures increases with the time except for 90 min pi in T4-infected where there is a decrease in absorbance reading by 0.028. The readings recorded for control is higher than T4-infected at each time period and the highest reading is at 120 min pi in the control culture (0.192). Table 1: absorbance reading of the cell cultures at 600nm Figure 2: Absorbance reading of control and T4-infected cultures against time Calculating the Multiplicity of infection (MOI)- the number of virions (pfu) per cell T4-titre = 2.74 x 1010 pfu/ml Cell count in T4-infected using C-chip Haemocytometer = 2808 cells per grid. Number of cells per mL = 2808 x 10,000 = 2.808107 cells/mL Number of cells per flask = 2.808107 x 23.1 (total volume) = 6.48 x 108 cells/flask MOI = (0.1x titre)/cells per flask = 2.74109/ 6.48108 = 4.22 pfu/cell. Table 2: class data of the plaque counts of T4-infected E.coli The growth curve of the T4-infected E.coli is shown in figure 3. A growth curve of a virus normally shows the eclipse period, latent period, rise period and the burst size. At 0 min pi, there is high number of extracellular cells (2.66 x 109 pfu/ml) as the virus has not been taken up by the E.coli cells. As the time increase to 20 min pi, the curve levels fell down due to penetration of viruses into the cell (as shown in figure 3). This phase is known as eclipse phase where the input virus begins to uncoat so, no infectious virus is detected. Latent period covers the period from the time of disappearance of infecting virus (eclipse phase) to re-appearance of it in E.coli. The rise phase is when there is a gradual increase in T4-phage titre as viral replication occurs and new cells are formed. Then the virus T4-tire levels off towards the end as cell lysis take place releasing the newly formed virus particles. However, the rise phase (shown is figure 3) doesnââ¬â¢t not rise gradual ly. The T4-titre rises until 60 min pi (2.845x 109) and instead of levelling off, there is a huge drop in the virus titre (8.05 x 107) at 80 min pi. In addition, the T4-virus sampled after overnight incubation (23.30 hours post infection), the dilution factors 10-7, 10-8 and 10-9 resulted in plaque counts of 12, 50 and 59 respectively. However, the plaques were only observed in one plate of each dilution and in the other plates no plaque were observed (Table 3 in appendix). Discussion Albrecht, et al (1996) states Infection caused by cytocidal viruses is normally associated with alterations in cell morphology, cell physiology and sequential biosynthetic events. The changes in cell morphology can sometimes be detectable which is known as cytopathic effects and they can be rounding of infected cells, formation of syncytia, and appearance of nuclear/cytoplasmic inclusion bodies. T4- bacteriophage usually causes death of host cell after replication causing cytopathic effects. A spectrophotometer is used to detect these cytopathic effects of T4-phage in E.coli. The spectrophotometer can only detect opacity due to the presence of bacterial cell and cannot detect virus as they are very small. So, as there is growth in cells in the culture, they become more opaque increasing the absorbance reading of the culture. The T4-infected culture didnââ¬â¢t have as much growth as the control as its absorbance readings are lower in all of the time period (as shown in figure 2). T4-phages can only replicate within the host cell therefore it must be grown in a bacterial cell. As shown in figure 3, at time 0 min pi, the amount of virus titre is the highest (2.66 x 109 pfu/ml). This is because the process has just begun as the T4-phage injects its ds DNA into the host cell after cell contact which is known as adsorption. Then, the virus titre drops down to 2.45 x108 pfu/ml at 20 min pi as it is attached to the host cell by receptor binding in order to penetrate into the host cell. At 40 min pi, the virus titre level begins to rise as the virus start to replicate within the host cell. The virus titre is suppose to increase till a certain time period and will gradually level off as the virus cell replication increases and after the host cell is filled with viral components, cell lysis occur releasing the newly formed virus phages to infect the surrounding bacteria. However, as shown in figure 3 this does not happen. The virus titre rises till post infection 60 mi n but there is a huge drop in virus titre after (8.05 x 107pfu/ml). There are errors in some of the results of the experiment like the decrease in absorbance reading of T4-infected at 90 min pi and the huge drop in virus titre at 60 min pi. Also, an overnight sample was taken from T4-infected culture at 23.30 hours post infection and plaque assay was carried out with dilution factors of 10-7, 10-8 and 10-9. There is no plaque formation in one of the two plates in each dilution (shown in table 3 in appendix). These errors in results can be due to various factors such as contamination in the samples due to poor sterilise technique, insufficient mixing and pipetting errors when making serial dilutions. Also, in plaque assay, the morphology of plaque depends on various environmental factors like the phage, the host and the growth conditions (Maloy, 2002). The size of the plaque is proportional to the efficiency of adsorption, the length of latent phase and the burst size. Also, the phages are affected by various physical and chemical factors like temperature, acidity, ions, etc. The other error can be made when counting the plaques in plaque assay. The counting is subjective to the counter as different counter would get different results for the same plate. The colonies were concentrated so it would be hard to differentiate between single colonies as they grow very close together. For more accurate counting of the plaque, the plates with 10-200 plaques would be chosen as there were three dilution factors of plates to choose from and anything with >200 plaque counts were not counted. Also, the experiments could be repeated more than once and for longer period of time when monitoring T4-infected E.coli so, average could be taken out which would give more accurate and reliable results. In conclusion, T4-bacteriophages are virulent infecting E.coli cells by lytic pathway and this can be measured by examining the cytopathic effects using spectrophotometer. Also, plaque assay of T4-infected E.coli helps to determine the virus titre ââ¬â concentration of virus in a sample. T4- bacteriophages are a model organism to study and are involved in advancement of modern genetics and molecular biology. Also, they could be used to treat bacterial diseases as the theory states that phages can selectively kill the host cell without damaging the human cells. Some potential applications that are being considered include adding phage suspension to grafts in order to control skin infections and intravenous fluids for blood infections (Talaro, et al, 2007). Word count: 2,763 References Albrecht, T., Fons, M., Boldogh, I., et al. Effects on Cells. In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 44.Available from: http://www.ncbi.nlm.nih.gov/books/NBK7979/ Baker, S., Griffiths, C. and Nicklin, J. (2011). BIOS Instant Notes in Microbiology. 4th edn. New York: Taylor Francis Ltd. Cann, A.J. (2005).Principles of Molecular Virology. 4th ed. United States: Elsevier Academic Press. 210-211. Gelderblom HR. Structure and Classification of Viruses. In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 41.Available from: http://www.ncbi.nlm.nih.gov/books/NBK8174/ Leimana, P.G., Kanamarua, S., Mesyanzhinovb, V.V., Arisakac, F., Rossmanna, M.G. (2003). Structure and morphogenesis of bacteriophage T4.Cellular and Molecular Life Sciences. 60 (1), 2356ââ¬â2370. Maloy, S. (2002).Phage plaques.Available: http://www.sci.sdsu.edu/~smaloy/MicrobialGenetics/topics/phage/plaques.html. Last accessed 30 March 2014. Miller, E S., Kutter, E., Mosig, G., Arisaka, F., Kunisawa, T., Rà ¼ger6, W. (2003). Bacteriophage T4 Genome.Microbiology and molecular Biology Review. 67 (1), 86-156. Strelkauskas, A., Strelkauskas, J. and Moszyk-Strelkauskas, D., 2010. Microbiology, a clinical approach. New York: Garland Science. Talaro, K.P. (2007).Foundations in Microbiology: Basic Principles. 7th ed. Phillipines: McGraw-Hill. 160-181. Todar, K., 2012. Bacteriophage. [Online]. Available at: http://textbookofbacteriology.net/phage.html..> (Accessed 30 March 2014). Appendix à à Table 3: T4 virus sampled after overnight incubation (23.30 hours pi)
Friday, October 25, 2019
The Volkswagen Beetle :: essays research papers
The people's car – generically, Volkswagen in German – is almost as old as the automobile, and the type was familiar in Germany long before the advent of the Volkswagen. Usually these 'popular'; cars were minimal cars, though size and simplicity did not necessarily bring them within the reach of the ordinary man in the street. Ã Ã Ã Ã Ã Henry Ford did build a successful universal car, to sell at a low price, but his Model T with its 2.9-litre engine was by no means a small car, nor was the Model A that followed it. When it was in production in the late 1920s, small 'proper'; cars in Germany ranged from the 700-cc DKW to the 1-litre Opel, with small Adlers, the BMW Dixi (a license-built Austin Seven) and the NSU-Fiats to come. These stimulated desire rather than a year's wage for an average worker. This prompted motorcycle manufacturer Zundapp to commission a low-cost car design from Dr. Ferdinand Porsche's new design studio. The project did not get far, but a Porsche-designed NSU that reached that prototype stage in 1933 accurately foreshadowed the Volkswagen. Ã Ã Ã Ã Ã The idea of a people's car appealed to Porsche, and it fascinated Adolf Hitler. When the Nazi Party came to power in 1933, one of his pet notions was the concept of motoring for the masses, and a meeting with Porsche was to be a meeting of minds. Once again Porsche was commissioned to design a popular car, and when the first ludicrously tight financial limits were relaxed he accepted the technical challenge. Ã Ã Ã Ã Ã It is possible that Porsche received too much credit for the design of the Volkswagen, for most of the technical elements had been seen before in the work of such men as Ledwinka, Rumpler, Rabe and Nibel. The Volkswagen reflected the Porsche Buro's earlier designs, but it was to reach production and eventually succeed beyond the wildest limits of the Thirties dream. Ã Ã Ã Ã Ã In 1931, the Porsche independent front suspension was patented. It interested many manufactures, and was to be important to the Volkswagen. It was devised around torsion bars, not new as such, but in this arrangement the two transverse bars were housed in tubular cross members, with a lower trailing link at each end, and an upper link pivoted to the frame and combined with a friction shock absorber. This was lighter than the then-common transverse leaf spring arrangement, but it meant that the wheels rolled with the body.
Thursday, October 24, 2019
Majestica Hotel In Shanghai Essay
Majestica, a luxury hotel management service business began in 1970 in Western Europe. Majestica gradually expand to United Kingdom, United States, North America, Asia and so on. After a gradual expansion in Asia, Majestica become the worldââ¬â¢s largest operators of luxury hotel and resort. Majestica earn by hotel ownership operation and hotel management but last five years they are concerning to managing hotel. All over the world, owner and developer of luxury hotels are attracted by Majestica because of their excellent quality. Their key success factor is management pointed to a service culture that they had fostered for decade. Moreover, their service culture is personal service oriented. Majesticaââ¬â¢s try best to delight their customer by response to unusual request of the guest. This unique service culture leads Majestica to icon in hotel management business in the world. They had two strategies to expand their business those are cautious to increase number of hotel and resort in their portfolio and operating philosophy. In Asia pacific region Majestica didnââ¬â¢t take first moving advantage because of high cost to established new industry and they didnââ¬â¢t convince about political situation stability and existence of service culture. Majestica follow other major international luxury hotel chain and enter in Asian market. In 1990, Majestica changed its strategy to enter Asian market because it was the alarming time for them. China becoming the most competitive hotel industry and chinaââ¬â¢s economic develop and open door policy leads to china the second largest foreign direct investment recipient in the world. Finally, Majestica took the right decision to change strategy and enter in Asiaââ¬â¢s largest competitive hotel business market. China was sixth most popular destination for business and tourist and would be first positioned by 2020. In 2004, there were 423 hotels with 68000 rooms which expected to increase 11 percent by 2005. Shanghai Tourism Administrative Commission also forecast that tourist visiting will increase by 5 percent. Mid 1998 international luxury hotel chains took the advantage of changed government policy soon they took place in Shanghai. Shangri-la, Hyatt international etc established and imbued thoroughly Shanghai luxury hotel market. On that time Shanghai was the best location for Majestica because of market demand, future benefit, resource, competition as well as government policy. While CPS was publicly listed in Hong Kong gave Majestica more confidence about business transparency and independence from government influence. Majesticaââ¬â¢s excellent performance and reputation attracted CPS and property owner to invest in Shanghai. As a result Majestica and CPS signed an intent and start negotiation. The challenging issue was the length of the contract and the control over the management of the hotel. First of all, Majestica wants the agreement for 55 years while it was 10 years normal hotel management term in china. So both CPS and Majestica had to change their policy and agreed to 30 years operation period with a option to extend operation period. Secondly, Majestica expect to design and construct by their senior people while CPS interfere to take decision. Than Majestica convince CPS that it is important to take senior people to keep chain of consistency of a world class luxury hotel construction. Selecting the name of the hotel, Majestica donââ¬â¢t want to compromise. Then, Majestica want experienced person as general manager who will accountable for over all operation. CPS wants a Chinese person to be a general manager though there was not any enough experience Chinese person. Then about expatriates, CPS wishes Majestica to train the local employees and eventually use them to replace the expatriates. Then CPS requested to Majestica to take a Deputy General Manager. In negotiation, CPS suggested to Majestica for purchasing all necessity from the local market. Majestica disagreed to CPS for allowing access to hotel rooms because of confusion. Finally, Majestica want to appoint a third party to resolve any condition but CPS didnââ¬â¢t agree to interfere of a third from outside China. For foreign investment law of China Majestica had to take 25 percent equity by the Majestica had to change the upper limit minority investment policy. To increase the market share Majestica should relax its operating philosophy and take the opportunity to grave the leadership position in hotel industryà in the world. If Majestica could change their philosophy and business practice than not only china but it could lead whole world and become global. To take this position Majestica need to change their management policy, market segmentation, human resource policy and aggressive expansion of hotel operating business.
Wednesday, October 23, 2019
Liberty in America from 1865 to 1941
Liberty is not just a wonderful thing. It is a rare thing. As much as we would like to wish otherwise there is far more tyranny in the world as opposed to liberty. Throughout history, there have been tyrannical monarchies and totalitarian regimes that impose their will on the populace. Actually, one does not even have to look into the historical past for examples as there are many nations this very day where tyranny rules. Those who live in the United States, however, can at least lay claim to living in one of the freest nations on earth. This is because the United States has built itself upon the concept of liberty, democracy and freedom. While there have been dark patches in American history, many of those dark periods have been overcome. One of the more interesting periods in the nation's history in terms of exploring liberty progression and regression would be during the time period from the end of the Civil War to just prior to American involvement in World War Two. During the Reconstruction Era, a tremendous amount of liberty was provided to African-Americans as freedom from slavery had arrived. Sadly, there was not much in the way of racial equality brought forth during this time period and many point to the apartheid like environment southern blacks had to endure. However, there was also the period of the Great Migration where many African-Americans moved north during World War One to take advantage of ob opportunities and a better living environment. No one impeded the migration as the liberty of being able to seek a better life was afforded. In addition, the liberties of the United States were afforded to people who lived outside the United States. This is evidenced in the significant immigration waves to the USA from Europe. These waves occurred throughout the late 19th century and early 20th century and all those who arrived were provided all the freedoms of the United States as well as being afforded the opportunity to take part in the democratic process. In addition to voting in the United States, many of these immigrants would go one to become major political figures. In fact, within a short number of decades many immigrants and African-Americans would become mayors of major cities. While liberty was not expanded quickly, it did expand and crossed all racial, gender and ethnic lines. Of course, at various times in American history there have been a number of challenges to liberty. Under President Woodrow Wilson, there were a number of famous assaults on the concept of liberty. This was most notable in Wilson's Sedition Act which essentially imposed the totalitarian concept of the ââ¬Å"enemy of the stateâ⬠on people who opposed Wilson's war policies. However, the way in which these procedures were enacted were so severe there is no way one could argue that these were sane policies. These laws arbitrarily targeted large numbers of the population and were quite random in their enforcement.. Thankfully, with the end of Wilson's tenure such practices would cease to occur with the exception of the Japanese internment during World War Two. The reason this aberration is pointed out is because it is an aberration. Such extreme methods are not the general practice of the United States as it remains a reliable beacon of liberty where such liberties are provided for all. Yes, there are stumbling blocks to liberties now and then but ultimately the United States remains the freest nation of earth and one that cherishes its freedoms. à à à Ã
Tuesday, October 22, 2019
Australias Declining Birth Rate essays
Australia's Declining Birth Rate essays One great, recent and long-lasting concern for the nation of Australia is the precipitous decline in the Australian birth rate. The Australian birth rate is one of the lowest birth rates in the civilized world. Statistics have also shown that a growing number of Australian women are postponing childbirth later and later. This is not only true of teenage mothers but also young women in their twenties, whom are traditionally at their most fertile biological peak' as well as more economically and personally stable than teenagers. The most frequently cited reasons for the low Australian birth rate, an object of frequent debate in the nation, include the lack of available affordable childcare as well as the fact that more and more women are pursuing careers, eschewing motherhood until later in life, only then finding out that hey have problems with their fertility. Also, the proportion of the population aged 65, past childbearing age, has grown steadily in Australia since 1975. (Australian Health Trends, 2001) Since 1976, the Australian birth rate has been sinking below replacement levels for the nation. This recent fall since the 1970's is even greater than the fall that occurred with the introduction of the birth control pill to the nation in the 1960's. Unlike the single factor of the introduction of the birth control pill, the 1970's anti-teenage mother campaign waged by the government, cutbacks in the health system regarding prenatal and day care, and social trends that de-emphasized motherhood have all created a trend towards later childbirth and smaller families since 1976. The burgeoning wealth of the population, the lack of social status accorded to motherhood in general as well as early motherhood, and even the increased rate of travel amongst young Australians have all been blamed for this growing trend. Also, the higher rate of congenital abnormalities...
Monday, October 21, 2019
Key Facts About Edmonton, the Capital of Alberta
Key Facts About Edmonton, the Capital of Alberta Edmonton is the capital city of the province of Alberta, Canada. Sometimes called Canadas Gateway to the North, Edmonton is the farthest north of Canadas large cities and has important road, rail and air transportation links. About Edmonton, Alberta From its beginnings as a Hudsons Bay Company fur trading fort, Edmonton has evolved into a city with a wide range of cultural, sporting and tourist attractions, and is the host of more than two dozen festivals each year. Most of Edmontons population works in the service and trade industries, as well as in the municipal, provincial and federal governments. Location of Edmonton Edmonton is located on the North Saskatchewan River, near the center of the province of Alberta. You can seeà more about the city in these maps ofà Edmonton. It is the northernmost large city in Canada and, therefore, the northernmost city in North America. Area Edmonton is 685.25 sq. km (264.58 sq. miles), according to Statistics Canada. Population As of the 2016 Census, Edmontons population was 932,546 people, making it the second-largest city in Alberta, after Calgary. It is the fifth-largest city in Canada. More Edmonton City Facts Edmonton was incorporated as a town in 1892 and as a city in 1904. Edmonton became the capital city of Alberta in 1905. Government of City of Edmonton Edmonton municipal elections are held every three years on the third Monday in October. The last Edmonton municipal election was held on Monday, Oct. 17, 2016, when Don Iveson was re-elected as mayor. The city council of Edmonton, Alberta is made up of 13 elected representatives: one mayor and 12 city councilors. Edmonton Economy Edmonton is a hub for the oil and gas industry (hence the name of its National Hockey League team, the Oilers). It is also well-regarded for its research and technology industries. Edmonton Attractions Major attractions in Edmonton include West Edmonton Mall (the largest mall in North America), Fort Edmonton Park, the Alberta Legislature, the Royal Alberta Museum, Devonian Botanic Garden and the Trans Canada Trail. There are also several sports arenas, including Commonwealth Stadium, Clarke Stadium and Rogers Place. Edmonton Weather Edmonton has a fairly dry climate, with warm summers and cold winters. Summers in Edmonton are hot and sunny. Although July is the month with the most rain, showers and thunderstorms are usually short. July and August have the warmest temperatures, with highs around 75 F (24 C). Summer days in June and July in Edmonton bring 17 hours of daylight. Winters in Edmonton are less severe than in many other Canadian cities, with low humidity and less snow. Although the winter temperature can dip to -40 C/F, the cold spells last only a few days and usually come with sunshine. January is the coldest month in Edmonton, and the wind chill can make it feel much colder.
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