Discuss the US immigration problem Essay Example | Topics and Well Written Essays - 250 words

Discuss the US immigration problem - Essay Example Since we already have a great number of illegal workers, it seems to me that the best solution for them is to have equal rights and obligations to those the US citizens have, as well as legalization of their status in the country. I take this position due to the fact that many US industries and manufactures greatly depend on the immigrants’ labor. However, this should be applied only to those who showed to follow our laws and live in peace with the nation, who have jobs, and are to become valued members of our society. Besides, such a step can be taken only after a profound analysis of the current situation is performed. If some are to be deported, this should not negatively influence our economy. On the other hand, I believe, there should be taken measured for complete reducing of the illegal workers’ inflow. In my opinion the government should take care of enforcing the existing land borders as well as immigration laws so that our borders are crossed only legally, and only by people whom our employers really need. Therefore, while I insist on a complete restriction of borders and immigration laws, I believe, those already working in the US must be given a right to stay in order to become the equal members of the

The French government Before 1879 Essay Example for Free

The French government Before 1879 Essay The French government had many problems financially and politically before 1789 that built up over a number of years and a number of monarchs. The problems stemmed from a growing disorder in the finances, aristocratic privileges, new revolutionary philosophies, power struggles, and a weak monarch. Due to lengthy and very costly wars, Louis XIV and Louis XV played a big hand in bankrupting France. The French had suffered big defeats and therefore had lost men and supplies. They also failed to gain any territory. France suffered defeat in the Seven Years War against Britain, had its army crushed by the Prussians and was unsuccessfully involved in the American War in an attempt to seek revenge on Britain. It was not only these extravagant costs of very unsuccessful wars, but Frances whole financial system was extremely inefficient. At the forefront of the system were ministers. During the American War, Jacques Necker was made Director-General of Finance because of his ability to obtain loans for use in paying for the war. Necker did this successfully, but he lied about Frances financial surplus and had everyone believing that France could spend money when, in reality, it was in huge debt, and therefore he allowed Ministers of War to spend non-existent money. Due to this, debts just continued to mount unknowingly to the rest of France, and around fifty percent of income was needed to pay for interests on loans and money spent. Necker was dismissed in 1781 and the politics and efficiency of the French financial system was unstable for years after that, with ministers resigning or being released, and the parlements even being exiled from Paris and government paralysed which led to the reformation of the Estates General that produced the cahiers list of complaints towards the king. The French Government desperately needed to introduce tax reform into its system. The clergy were exempt from all taxes; the nobles paid little tax and all the taxes were placed on the bourgeoisie and peasantry. But only taxing the Third Estate was very inefficient and could not contribute enough to the French Governments budgets. If this were to continue the deficit would only increase, but the Government had three main problems preventing  the introduction of tax reform. Firstly the tax collection system was poorly run and inefficient as the government allowed private companies to collect taxes, and so not all the money was collected or not all of it reached the treasury. Perhaps if the First and Second Estate were taxed, the problem of inefficient tax collection would not have mattered as much. But another problem was that the nobles were determined not to give up their tax privileges. This caused a great problem for the king, who because he was weak, allowed the nobles to influence him in dismissing any ministers, such as Brienne, that were pushing for tax reform. It was not just a case of further increasing the taxes placed on the Third Estate either to help decrease the deficit, as the bourgeoisie and peasants were also disgruntled due to the large amount of taxes that they already had to pay. The peasants increasingly found it almost impossible to pay these taxes, leaving the majority of France in dismay. The French government also faced many political problems, not just within the financial system as relates to the ministers and rising deficit, but the politics of the whole country was being challenged. All sections of French society, particularly the Third Estate, were becoming increasingly unhappy. But in the time leading up to 1789, they discovered that they could actually make a difference and challenge government, as revolutionary mentality began to set in and the Ancien Regime was cracking at its foundations. This happened for a number of reasons. In the late 1780s there was a growth in trade and industry within town life. This new growth led to problems within the Ancien Regime. Business expanded and so prices gradually rose. This did not help the aristocracy whose incomes were fixed, but it was the bourgeoisie who largely profited from this growth and they became wealthier and more powerful. This also made the bourgeoisie view the current tax system more unfavourably as it meant using their money and profit to pay tax that they could be using to expand business. This also backs up that revolutions take place at times when the economy is getting better. There was not just growth in business within the bourgeoisie, but also growth  in ideology. This was sparked by The Enlightenment that was taking place in France as a result of revolutionary thinkers such as Voltaire, Rousseau, and Diderot, who heavily advertised liberality and attacked the government and Church. One thing that they were encouraging was free trade that would have appealed greatly to the bourgeoisie businessmen. As a result of The Enlightenment, the Third Estate were now willing to speak up about their criticism of divine right, the class system, privileges, and the lack of liberal rights, and there were more and more pamphlets being published. But perhaps the biggest political problem in France was its king. In a country where the monarch had absolute power, it needed to be a strong person, but Louis XVI was not a strong person. He was not able to prevent The Enlightenment or the Estates General. He had his people against him, making strong demands that would entirely turn around French politics. After highlighting the financial and political problems facing the French government before 1789, we can see that the problems began with the cost of wars over a number of years, made worse by the misleadings of Jacques Necker, and the inefficient tax system. These long-term financial problems led to the political problems, which also disallowed any tax reform. The bourgeoisie and the peasantry, with the aid of The Enlightenment, criticised the tax system and became less and less able and willing to pay taxes. The nobles did not pay all taxes and so the bourgeoisie resented the privileges of the nobles, but the main link between both financial and political problems is the king. He played part in the mounting deficit, ran an unstable government, and he did not want to annoy the nobility and therefore tax reform could never take place. All these factors combined helped to break down the Ancien Regime and push revolution.

Treatments for Metronidazole-Resistant Giardiasis A Review

Treatments for Metronidazole-Resistant Giardiasis A Review Nicole Wagner Abstract Giardiasis is a protozoal infection and a health issue in many parts of the world for both humans and animals. Giardia spp. Are responsible for diarrheal diseases, and current treatments are not consistently effective due to the development of drug resistance. The common drugs used to treat the parasite often have undesirable side effects. New drugs, drugs previously used for other conditions, and natural remedies are all being investigated for use in treating giardiasis and reducing Giardia numbers. The mode-of-action and potency of these alternative treatments give insight into new therapies, although more research is needed. Introduction Protozoal Giardia spp. Occur in two forms, a motile, flagellated trophozoite, and a resistant cyst. The motile trophozoite adheres to the intestinal wall of its host, while the cyst form is passed in the hosts feces then re-ingested in another host (Hendrix and Robinson 2012). It is now suspected that Giardia is species specific and the human forms are included in the Giardia lamblia assemblage and include Giardia intestinalis and Giardia duodenalis (Hendrix and Robinson 2012). Giardiasis is caused by a protozoal parasite that is responsible for health issues worldwide in humans and animals. In humans, the parasite is responsible for approximately 184 million cases of giardiasis each year (Hart et al. 2015). In animals, it has been found that in North America some herds of dairy calves have the parasite in 100% of the animals, and in Australia, the most common enteric parasite of dogs is a species of Giardia (Thompson. 2000). Signs and symptoms of giardiasis include chronic and acute diarrhea and vomiting (Hart et al. 2015). These significant intestinal diseases can decrease appetite, cause malabsorption, malnutrition and even death (El-Taweed 2015). And because this parasite is found in domesticated animals, there is a significant zoonotic transmission potential (Thompson. 2000). A calf can shed 105 to 106 cysts per gram of feces, and re-infection can occur with ingesting as few as 10 cysts. As the Giardia cysts survive well in water there is a potential f or contamination of untreated water supply as well (Thompson 2000 and Watkins and Eckmann 2014). There is no vaccine available for Giardia, so the treatment of the disease involves drug therapy, like the antibiotic metronidazole, a 5-nitroimadazole class drug (Watkins and Eckmann 2014 and Hart et al. 2017). Other drugs of this class are also used to treat giardiasis with varying degrees of success. However, like many antibiotics some drug resistance has been found (Watkins and Eckmann 2014). Several studies demonstrate Giardia spp. resistance to the 5-nitroimadazole class of drugs, including one that recorded 22% of patients in a clinic in Spain receiving treatment for giardiasis did not respond to metronidazole (El-Taweed 2015). Perhaps contributing to the problem of emerging drug resistance, are the undesirable side effects of common antiprotozoal drugs. Some of these side effects include intestinal discomfort, flatulence, nausea, vomiting, and the metallic taste of the drugs (Sahib et al. 2014). It is human nature to stop using a drug with these side effects as soon as it seems to be working, and this leads to the potential for an increase in 5-nitroimidazole drug resistance over time. Also, the use of the 5-nitromadazole class drugs at lower doses for treating gingivitis and pre-surgical colorectal cases, may allow for the growth of drug-resistant forms of Giardia (El-Taweed et al. 2015). Research into how Giardia become resistant to metronidazole and the active components of other successful drugs is important to the success of treating giardiasis in humans and animals. The investigations into different drugs and herbal remedies involve identifying the mode-of-action, how the active component is effectiv e against this protozoan in both trophozoites and cyst form (Galeh et al. 2016). As an alternative to metronidazole, older antibiotic drugs, new antibiotic drugs and plant extracts and essential oils are being considered by many researchers. Newer drugs are being considered to overcome Giardia resistance like auranofin, a drug currently prescribed for rheumatoid arthritis (Watkins and Eckmann 2014.). Researchers are also considering plants and plant extracts for a new anti-giardia agent. These extracts have been used in traditional medicine to treat diarrhea in places in South America, India, Iran, and Turkey where Giardia is endemic (Watkins and Eckmann 2014). Research has been done investigating compounds from garlic (Mikaili et al. 2014), ginger and cinnamon (Mahmoud et al. 2014), pomegranate (Al-Megrin 2017), and native plants from Brazil (Martins et al. 2015), the Yucatan (Sergio et al. 2005) and their effectiveness against Giardia. Identifying the compounds in the plants that are most effective against the protozoa will provide another option for treatment of giardiasis. Drug Therapies As previously mentioned, the number of cases of Metronidazole-resistant giardiasis is growing. Other 5-nitroimadazole and nitro-class drugs have been tested against Giardia like nitazoxanide and furazolidone (Watkins and Eckmann 2014). These drugs work by reducing the nitrogen group on the drug compounds to activate toxic free radicals. The advantages of the new drugs are shorter length of treatment and reduced cellular damage to the liver and kidneys (Jarrad et al 2016). Side effects are seen in the use of these drugs, as in the case of furazolidone, where some hemolysis was observed in some patients (Watkins and Eckmann 2014) and in 5-nitroimadazole drugs side effects like nausea, vomiting and headaches are reported (Jarrad et al. 2016). When developing new drug treatments, researchers investigate how the parasite is developing resistance to current treatments. In the case of 5-nitroimodazole drugs, the potency of a substance against Giardia species is due to the activation of the drug by an enzyme pyruvate ferredoxin oxidoreductase (PFOR). The drugs nitro group is reduced by the protozoans PFOR enzyme, producing toxic free radicals which bond to target molecules in the microbe, inactivating them and killing the parasite (Watkins and Eckmann 2014). The resistant protozoans have down-regulated the PFOR enzyme (Jarrad et al. 2016 and Galeh et al. 2016). To treat giardiasis, research has focused on this nitro group and the formation of toxic free radicals. Other drugs are being developed that incorporate a benzene ring, instead of (or in addition to) the nitro groups. These drugs act on the Giardia cellular vesicles, causing swelling, and are more effective than nitazoxanide and metronidazole (Watkins and Eckmann 2014) . Not all research has resulted in support for the development of new drugs in the 5-nitromiadazole class. In a study conducted in Iran, researchers tested the theory in human clinical studies, utilizing PCR to identify genetic mutations that appeared in metronidazole-resistant Giardia lamblia. In the metronidazole-resistant G. lamblia, the protozoa did not show down regulation of PFOR and it is suspected that other predisposing factors were responsible for the drugs ineffectiveness(Galeh et al. 2016). Further research is being done to test the new drugs like nitroimidazole and furazolidone for cytotoxicity towards human liver, kidney, and intestinal cells (Watkins and Eckmann 2014). These side effects can be serious in immune-compromised subjects and children. Older antibiotic drugs like albendazole and mebendazole, benzimidazole class drugs, have been shown to be effective against Giardia as well. These drugs are currently used to treat roundworm infections. The benzimidazole class drugs act by binding to tubulin and interfering with the protozoan cytoskeleton (Watkins and Eckmann, 2014). Research into the effectiveness of metronidazole and albendazole in mice showed that some Giardia isolates developed resistance to one or the other drug and in some cases both drugs (Lemà ©e et al. 2000). In the case of albendazole, some Giardia duodenalis resistance developed in a mouse model (Lemà ©e et al. 2000). In another study in Bolivia when albendazole was used to reduce the hookworm infection, the number of Giardia infections increased showing some (Watkins and Eckmann 2014). Drug research of existing drug libraries has also revealed some drugs that previously were not used as antimicrobials are effective against Giardia. A drug used for rheumatoid arthritis, auranofin, inhibits the growth of metronidazole-resistant Giardia. It works by inhibiting the thioredoxin-glutathione reductase enzyme (Watkins and Eckmann 2014). A drug used for obesity treatment, orlistat, which is poorly absorbed, is active in the intestine. Orlistat works by inhibiting lipases in Giardia isolates, preventing lipid metabolism (Watkins and Eckmann 2014). Ginger and Cinnamon Current research into metronidazole-resistant Giardia infections has gone beyond investigating new drugs or existing drug libraries. Diarrheal treatments around the world have shown promise in providing avenues for new giardiasis therapies and treatments. Some of this research involves the investigation into anti-nausea spices, ginger and cinnamon. Research has been conducted using ginger extracts in both in vivo and in vitro studies. In an in vitro study (Abdel-Hafeez et al. 2016), a comparison was made between gingers and nitazoxanides effectiveness against Giardia lamblia trophozoites. Ginger was chosen to contrast with the drug because of its historical use as an anti-nausea and anti-diarrheal treatment. Ginger extract is an antioxidant with alkaloids, saponins, tannins, and flavonoids. It is suspected that either the antioxidant or flavonoids have a negative effect on the trophozoites (Mahmoud et al. 2014). A study investigated curcumin, an antioxidant, also found in Zingiber officinale and other pungent spices (Perrez-Arriaga et al. 2006) showed that in the presence of curcumin at concentrations similar to metronidazole, significant swelling was seen in the Giardia trophozoites, indicating possible cell membrane interference (Perrez-Arriaga et al. 2006). In the research conducted by Abdel-Hafeez et al. (2016), cultured fecal samples treated with ginger extract at 20mg/mL resulted in similar reduction of the number of viable trophozoites in the culture as nitazoxanide. The findings were based on counts of viable trophozoites (pear-shaped, mobile, and non-refractory quality) under a light microscope. Verification of findings may use in vivo studies with mice or rats, and improved counting and staining techniques are indicated for future research. Meanwhile, ginger continues to be used for a variety of intestinal infections in Thailand, India, and Egypt (Abdel-Hafeez et al. 2016). In the in vivo study by Mahmoud, et al (2014)., cinnamon was also evaluated against Giardia trophozoites and cysts. As stated previously, the cyst is found in fecal samples as a transmissible form. The researchers This study involved using Giardia lamblia cyst infected rats and measured doses of ginger at 10 and 20 mg/kg/day and cinnamon at 10 and 20 mg/kg/day. As Perrez-Arriaga et al. (2006) previously researched, active compounds in ginger may affect the protozoans cell membrane. In another study, Proanthocyanidins were identified as an active compound in cinnamon (Williams et al. 2015). Proanthocyanidins, also found in berries, disrupt protozoans adhesive ability which is necessary for the trophozoite to maintain its position in the intestine (Anthony et al. 2007). In the Mahmoud study (2014) the rats were euthanized and their intestines washed for a measurement of trophozoites and to determine intestinal damage (Anthony et al. 2007). Their stools were also collected for three day s prior to euthanasia to perform a count of cysts excreted (Mahmoud et al. 2014). According to the results of this study, cinnamon given to the rats at the 20 mg/kg dose resulted in a 100% reduction in the number of cysts found in their fecals, and a 34% reduction in the number of trophozoites. When rats were given a dose of 20mg/kg of ginger the number of cysts found in their stool was reduced by 90.1% and the number of trophozoites in the intestinal wash was reduced by 75.45%. So, the cinnamon was more active against cysts and the ginger was more active against the trophozoites in the rats (Mahmoud et al. 2014). The study also utilized electron microscopy to count and identify Giardia cysts and trophozoites. By utilizing this technology, and the researchers were able to show that not only was the infection reduced with cinnamon, but the intestinal mucosa was healthier in the samples taken as compared to the ginger-dosed rats (Mahmoud et al. 2014). This study, however did not utili ze a positive control group to measure the difference (if any) between using ginger and cinnamon extracts compared with using metronidazole or other drug treatment for giardiasis. Additional research may determine whether the intestinal mucosa would improve, with the drug treatment as occurred in the study with cinnamon and ginger (Mahmoud et al. 2014). Garlic and Shallot One of the most promising and researched herbal extract is allicin, a component of plants in the garlic and onion family. Garlic and shallot plants have been used in traditional medicine in various parts of the world for hundreds of years (Mikaili et al. 2013). Sulfur-based components like allicin (diallyl dithiosulfinate), diallyl disulfide, and S-allylcystein of these plants are of interest to research for use in pharmacological studies (Mikaili et al. 2013). In an in vitro study investigating whole garlic extract (Harris et al. 2000), garlic was shown to be effective against Giardia intestinalis at a concentration of 0.3mg/mL. The researchers went on to examine how the compounds in garlic were acting on the Giardia and whether allicin was the compound of interest. Allicin has a very short half-life in vivo, but the thiosulfates that result from its breakdown are bioavailable longer to act against Giardia trophozoites (Harris et al. 2000). In this study the researchers investigated the anti-parasitic activity of these compounds, and they showed that diallyl disulphide was particularly effective in reducing the number of trophozoites. Another component, allyl alcohol, damaged the trophozoites by causing cellular swelling and immobility (Harris et al. 2000). In another study focusing on diallyl trisulfide (DAT) from garlic, a concentration of 300 ug/mL was effective against Giardia lamblia (Lun et al. 1994). The researchers used an in vitro test to determine the IC50 for DAT, and the result was 8.5-14 ug/mL, using the same tests that determined the IC50 of metronidazole. The use of DAT in China for treatment of other parasitic infections is not uncommon (Lun et al. 1994), but it will be necessary to determine how DAT is effective against the parasite in vivo in future research. One avenue that research may pursue is in studying how DAT affects tubulin (Hosono et al. 2005), which would indicate that this substance has a similar effect as the benzimidazole drugs like albendazole. Further research into obtaining effective concentrations of these components of garlic and onions is necessary. Herbal Extracts Other herbal extracts have been investigated for their biologically active components and effectiveness as a treatment for giardiasis. Three of these show promise in recent studies. Peppermint (Mentha x piperta L.) is used as an herbal remedy for stomach discomfort (Vidal et al. 2007). Dill is also used in some areas of the world to treat children with diarrhea (Sahib et al. 2014). Pomegranate peel contains some substances that prove active against Giardia (Al-Megrin 2016). Mentha x piperta (peppermint) is known to have a relaxation effect on gastrointestinal smooth muscle, and this is suspected to be the result of the menthol affecting calcium channels (Kiefer et al. 2008). In one study methanolic extract from Mentha x piperta was tested against Giardia lamblia (Vidal et al. 2007). This study measures IC50, which is the calculation of the amount of a substance necessary to inhibit or kill one-half of the microbes. The IC50 after 48 hours of exposure was 0.8 ug/mL, similar to the IC50 of metronidazole and furazalidone after 24 hours (Vidal et al. 2007). The study tested different concentrations of the dichloromethane (DCM) from Mentha x piperta and found that a dose of 100 ug/mL after 48 hours almost eliminated the presence of trophozoites in the culture media (Vidal et al. 2007). The study also examined how DCM was altering the morphology of trophozoites utilizing electron microscopy, and found changes to plasma membranes (Vidal et al. 2007). This sugg ests the need for further research into why the protozoal membranes were altered, what biologically active components of peppermint were involved, and whether this alteration would also affect intestinal cells in mammals (measuring potential toxicity). In a study that researched the extracts from the Dill plant (Anethum graveolens), researchers conducted a clinical trial with children Giardia trophozoites and cysts, or if the dill acted on the muscle cells in the intestine, reducing smooth muscle contraction. Further research needs to be conducted into these issues. Pomegranate peel extract was also tested for anti-Giardia activity in another study (Al-Megrin 2016). Researchers studied mice that were infected with the Giardia cysts, and given an extract of pomegranate peel daily. Then the number of cysts produced in the mouse stool and the antigen presence for Giardia were counted and measured respectively. There was a reduction in the number of cysts counted in the groups of mice that had received the pomegranate, however there was also a natural reduction in the number of cysts in the studys control group (Al-Megrin 2016). The researchers also reported that the rate of detection of the Giardia antigen in the groups that were treated was significantly (P Native Plants Ethnopharmacology is becoming one method for identifying plant-based sources for new pharmacological treatments. Ethnopharmacology studies involve interviewing people who are native to specific areas to identify historical and current plant species used to treat disease. In the case of Giardia treatment, researchers identified diarrhea as the key symptom in 90% of human cases (Neiva et al. 2014). Although people reporting to clinics or hospitals with diarrhea did not necessarily identify causative agents, in some cases they were self-treating with plants from the area or from their own gardens (Neiva, et al. 2014). The identification of plants used by people suffering from diarrhea allowed researchers to focus on specific plant species in anti-giardiasis studies. In one study by Neiva et al. (2014) the researchers focused on an area around Sao Luis, Brazil. From interviewing and collecting plant samples that people were using to treat diarrhea and dysentery symptoms, the researchers identified five potential plants to test for anti-Giardia effectiveness. The researchers also identified the part of the plants and the preparation of the plants used for treatment of diarrhea by these patients of a healthcare facility and private specialty institution (Neiva et al. 2014). The five species of plants selected to investigate were Anacardium occidentale L., Chenopodium ambrosioides L., Passiflora edulis Sims., Psiddiumguajava L., and Stachytarpheta cayennesis (Rich) Vahl. (Neiva et al. 2014). It was found that all the plants had some giardicidal activity, but Passiflora was most effective at IC50 In another similar ethnopharmacology study, researchers investigated plants native to the Yucatan peninsula in Mexico that were used to treat diarrhea (Paraza-Sanchez et al. 2005). This study was conducted in vitro using 10 methanol extracts from native plants. In this study Tridax procumens as a whole plant was used (air-dried and powdered into methanol, then evaporated, and added to DMSO) (Paraza-Sanchez et al. 2005). The researchers identified from other studies that the plant contains hydrocarbons, fatty acids, flavonoids, bis-bithiophene. Flavonoids may contain polyphenols and inhibit Giardia from adhering to the intestinal wall (Anthony et al. 2007) In other plants tested, C. dentata, D. cahagenesis, and B. cressifolia have not had their chemical components analyzed, although they all had giardicidal activity (Paraza-Sanchez et al. 2005). It is unknown at this time why these native plants are effective against Giardia spp. (Paraza-Sanchez et al. 2005). Research has been conducted on the Rubus liebmanii medicinal plant native to Mexico. The antiprotozoal active compounds were identified as epicatechin and catechin (polyphenols), Nigaichigoside F1, beta-sitosterol, squalene, and 3,4 hydroxybenzoic acid (Jimà ©nez-Arellanes et al. 2012). In this study, extracts from the plant were fractionated to identify specific compounds, an extract of R. liebomanii was tested against G. lamblia with a negative control and a metronidazole infused positive control, and the research continued using guinea pigs and mice as test subjects. The results indicated that the Nigaichigoside F1 had an IC50 of 2.17 ug/mL as compared with metronidazole which had an IC50 of 0.5 ug/mL in cultures of G. lamblia (Jimà ©nez-Arellanes et al. 2012). When the potential toxicity of the plant was tested in male rats, the pure extract of R. liebmanii was not toxic, even at 1000mg/kg dosages (Jimà ©nez-Arellanes et al. 2012). Further research into these plants may involv e identifying how the active components are working against the protozoans and identify more effective treatments, which will need to be tested in vivo. Solanum lycoparum is also a native plant of Brazil. In research published in 2015 (Gilmarcio et al. 2015), this native species was investigated for its anti-Giardia potential. The fruit of this plant is used in traditional medicine (Gilmarcio et al. 2015). Two glycoalkaloids, solamargin (Sg) and solasonine (Sn) have been identified as having potential as anti-Giardia treatments (Gilmarcio et al. 2015). Both compounds were effective against Giardia lamblia, with Sg having an IC50 of 120.3 ug/mL and Sn having an IC50 of 103.7 ug/mL. However, when both compounds were mixed as they would be in the fruit of S. lycoparum, their IC50 was 13.23 ug/mL, much lower (Gilmarcio et al. 2015). This demonstrates a synergistic effect of the compounds. The researchers also used an index of selectivity calculation to measure effectiveness of the compound as compared to toxicity against macrophages, and the combined glycoalkaloids had a relatively high index (Gilmarcio et al. 2015). This index was neces sary because glycoalkaloids can be toxic. In vitro studies of the combined Sn+Sg treatment would provide additional research opportunities and determine the toxic effects of the glycoalkaloid while treating Giardia lamblia. Glycoalkaloids affect permeability of mammalian intestinal cells (Gee et al. 1996), however the glycoalkaloids found and studied from the S. lycoparum are not the most toxic. It is likely; however, no research could be found in the current literature searches, that the effect of glycoalkaloids on the Giardia trophozoites cell membrane did cause cellular swelling and changes to the vesicles and flagella. Essential Oils Clove oil, an essential oil from Syzgium aromaticum, has been used to treat digestive disorders and diarrhea (Machado et al. 2011). Research into essential oils has shown they are effective against many bacterial and fungal infections, but little research has been done to discover how the oil works (Machado et al. 2011). Eugenol is a major of several essential oils including S. aromaticum, and in this research the eugenol comprised 85% of the essential oil tested (Machado et al. 2011).In a study testing the effect of clove oil and eugenol on Giardia lamblia it was shown that S. aromaticum had an IC50 value of 134 ug/mL and eugenol had an IC50 value of 101 ug/mL (Machado et al. 2011). The study also utilized scanning and transmission electron microscopy to measure morphological changes in the Giardia that were incubated with the S. aromaticum essential oil. It was observed that the adherence of the Giardia was inhibited in the presence of eugenol (Machado et al. 2011). Giardia normall y attach to the intestinal wall to maintain position, obtain nutrients, and reproduce. The essential oil contained eugenol, and although it affected adherence, it did not cause the Giardia trophozoites to lyse, so the results in this study indicated that other components of the S. aromaticum oil were responsible for the cell death (Machado et al. 2011). Other essential oils are used to treat digestive issues. One, from Ocimum basilicum of the basil family, was studied for its anti-Giardia effects (de Almeida et al. 2007). In this study the researchers again isolated components of the essential oil and tested for antigiardial activity (de Almeida et al. 2007). This study also investigated eugenol as one of those components, and found the eugenol was effective against the Giardia trophozoites (de Almeida et al. 2007). The study included testing the linalool, which makes up 69.33% of the essential oil in addition to eugenol. Linalool was shown to be even more effective at reducing the number of viable Giardia lamblia trophozoites (de Almeida et al. 2007). To verify potential toxicity of the essential oil and its components, the researchers tested mouse macrophages in the same concentrations of Ocimum basilicum, eugenol and linalool and found that there was little to no effect on the cells (de Almeida et al. 2007). The researchers also identified an inhibitory effect of the oil and it components to a group of cysteine peptidases enzymes that are commonly found in these protozoans (de Almeida et al. 2007). The inhibition of cysteine peptidases has been shown to have a lethal effect on trophozoites of another protozoal species, Entamoeba histolytica (Ankri et al. 1997). Ozone In an interesting study (Boland-Nazar et al. 2016), olive oil injected with ozone was tested as a treatment for giardiasis. In an in vitro study, the tubes of Giardia were combined with different concentrations of ozonated olive oil, and this proved effective against Giardia cysts after 100 hours of incubation (Boland-Nazar et al. 2016). It is suspected by the researchers that the extra oxygen atom acts a free radical, like the immunological response of macrophages and neutrophils (Boland-Nazar et al. 2016). Olive oil is effective at stabilizing a delivery system for ozone without losing its durability (Boland-Nazar et al. 2016), and the higher the concentration of ozone in the oil, the more effective the treatment is against Giardia cysts. The researchers suggest conducting an in vivo study with this substance to verify their hypothesis (Boland-Nazar et al. 2016). Discussion Research into treating giardiasis will continue as standard treatments like metronidazole go up against greater drug resistance. The mode of action of different therapies has been investigated and includes inhibiting PFOR, cysteine proteinases, inhibiting adherence (Anthony et al. 2007), tubulin and cytoskeleton interference, and cell membrane interference. Table 1 shows some of the different treatments dosage requirements and active compounds. The 5nitroimadazole drugs are the most commonly prescribed treatments for giardiasis world-wide. New drugs are being developed from within this class, altering the nitro-group or adding benzene rings to the molecules to improve effectiveness considering growing metronidazole resistance (Watkins and Eckmann 2014). Other drugs that have been prescribed for anti-parasitic treatment or other purposes entirely are also being investigated. This includes anthelminthic drugs as well as drugs that were initially developed to treat obesity and rheumatoid arthritis (Watkins and Eckmann 2014). Finally, herbal, spice, and plant-based extracts are being investigated for their antiprotozoal activity. Although Table1 does not show an IC50 for each of the compounds discussed in this paper, it does highlight the active components. Table 1: Effectiveness of different substances in inhibiting Giardia IC50 Active compound Reference Metronidazole 0.8 ug/mL 5-nitroimadazole Jarrad et al. 2016, Watkins and Eckmann, 2014, Vidal et al 2007 Albendazole 52.4 ug/mL Benzimidazole Jarrad et al. 2016, Watkins and Eckmann, 2014, Lemee et al. 2000 Furazolidone 0.65 ug/mL 5-nitrofurans Jarrad et al. 2016, Watkins and Eckmann, 2014, Vidal et al 2007 Garlic 14 ug/mL Diallyl trisulfide Lun

John Donne: A Poet Out of His Time Essay -- Biography Biographies Essa

John Donne: A Poet Out of His Time      Ã‚   "The first poet in the world in some things," applauded Ben Jonson of his friend, John Donne (Donne, John Donne: A Selection of His Poetry 11). In the midst of the stylized and often frivolous verses of the Elizabethan and cavalier poets, John Donne's work emerges as startling, intellectual, and honest to human nature and emotion- classifying him as the first of the modern poets. Through an exploration of Donne's "The Sun Rising" and "The Flea", we shall reveal Donne's innovative style and technique, and how this repels him from the poetic orthodoxy of the seventeenth century and towards the style of the modern age.    0 "Busy old fool, unruly sun,/ Why dost thou thus?" Donne audaciously denounces the sun itself, a heavenly body worshipped through the ages, in his poem, "The Sun Rising". Moreover, Donne employs an interesting conceit: he uses the routine, everyday phenomena of the rising sun as the basis for a love poem, love being extraordinary, new, and often once-in-a-lifetime. Donne goes on dramatically and arrogantly to thre... John Donne: A Poet Out of His Time Essay -- Biography Biographies Essa John Donne: A Poet Out of His Time      Ã‚   "The first poet in the world in some things," applauded Ben Jonson of his friend, John Donne (Donne, John Donne: A Selection of His Poetry 11). In the midst of the stylized and often frivolous verses of the Elizabethan and cavalier poets, John Donne's work emerges as startling, intellectual, and honest to human nature and emotion- classifying him as the first of the modern poets. Through an exploration of Donne's "The Sun Rising" and "The Flea", we shall reveal Donne's innovative style and technique, and how this repels him from the poetic orthodoxy of the seventeenth century and towards the style of the modern age.    0 "Busy old fool, unruly sun,/ Why dost thou thus?" Donne audaciously denounces the sun itself, a heavenly body worshipped through the ages, in his poem, "The Sun Rising". Moreover, Donne employs an interesting conceit: he uses the routine, everyday phenomena of the rising sun as the basis for a love poem, love being extraordinary, new, and often once-in-a-lifetime. Donne goes on dramatically and arrogantly to thre...

Marine Insurance

MARINE INSURANCE Marine insurance is the indemnity for the loss of cargo or damage to ships during the shipment. The risks that marine insurance covers are fire, seizures, wars, accidents or causalities which take place over the sea. The winds and waves are not included as risks in the marine insurance. The Indian Marine Insurance Act, 1963 is imbibed from the Marine Insurance Act, 1906. Though the Marine Insurance Act is deep in its insurance coverage, it does not provide for losses that occur while the ship is sailing the waters.This has led to the introduction of another insurance called the Marine Cargo Insurance, which provides for losses to cargo while the ship is sailing the waters. This is very beneficial to oil tankers and heavy cargo ships. Types of Marine Insurance Since Marine Insurance is very vast, it provides for various types of insurance as per the need, specification and requirement. They are: Hull  Insurance  Ã¢â‚¬â€œ This insurance covers for both vessel and i ts apparatus such as fuel, tools, furniture, machinery etc. Freight Insurance  Ã¢â‚¬â€œ This insurance usually covers for the loss of freight.If the goods are safely shifted to the destination port, the owner of goods will have to pay the freight charges but if the ship faces any damages and losses, the shipping company will be under loss. Hence this insurance becomes a necessity to the owner company Cargo Insurance- This insurance covers the personal goods of the passengers and crew of the ship. It also covers the goods that are transported. Liability Insurance  Ã¢â‚¬â€œ This is the insurance which is utilized when the insured suffers losses due to liability to third party.This liability may be caused due to risks such as collision of ships or any other similar causality that may take place in voyage. Types of Marine Insurance Policies There are various types of marine insurance policies that the assured can opt for: Time Policy- This policy is taken for a time period of usuall y  one year Voyage Policy  Ã¢â‚¬â€œ This policy coverage is given only for a particular voyage say from starting point to the destination. Mixed Policy  Ã¢â‚¬â€œ As the name suggests it is a mixture of both voyage and time policy. Valued Policy  Ã¢â‚¬â€œ In this case, an additional fixed value is mentioned in the policy itself along with the value of goods.For example, along with goods the charges can also be added such as freight charges and shipment charges. Unvalued Policy  Ã¢â‚¬â€œ Here no additional charges are mentioned. It is decided after the incident after proving it. Floating Policy–This policy is beneficial to exporter who provides regular supply of goods. This policy is taken for large sum of money for numerous shipments. Other Important Pointers: * Marine insurance is available in all general insurance companies. * The insurance amount may vary from one company to another. It is important that the insured makes a note of the coverage made by the insuran ce companies as few companies may not cover all the losses of the shipment. * With the increasing attacks by pirates and natural calamities, it is important to have a marine insurance that takes care of the risks aboard. PROGRESSIVE INSURANCE COMPANY. What is marine insurance? Insurance against loss or damage to cargo goods and merchandise during land transit/sea voyage/air transport from and to Cyprus. Insurance for shipments not involving Cyprus can also be provided. Prospective clients:  For all merchants, manufacturers, importers and exporters.TYPES OF POLICIES AVAILABLE Individual Policies:  One shipment of goods for one voyage I. E. â€Å"One Off† risks. Annual Policies:  Suitable for an irregular flow of business, deposit premium based on turnover, declarations at agreed intervals, annual adjustment and renewal. Permanent Open Covers:  Suitable for a regular flow of business, automatically covers all goods specified, declarations at agreed intervals, policies a nd premiums debited at agreed intervals. TYPES OF COVER AVAILABLE Institute cargo clauses (A):  Widest form of cover available, insures â€Å"all risks† with stated exclusions.Institute cargo clauses (B):  Restricted form of cover, insures against major accidents to carrying vessel or conveyance, can include specified additional perils. Institute cargo clauses (C):  Most restricted form of cover, insures against major accidents to carrying vessel or conveyance only. War and strike clauses:  Standard extension available   for (A), (B), and (C). Duration of cover:  Warehouse to warehouse during ordinary course of transit. Rates:  Individually assessed on merit, no tariffs other than war risks and overage of vessel. For commercial goods the sale contract governs the needs of sellers and buyers for insurance.

The Making of the USA essays

The Making of the USA essays The Making of the USA Two main challenges met by the American people are the building of a democratic nation and the policy of imperialism that U.S. applied in order to assert its authority all over the world. The Revolutionary War and the Constitution opened the way for a great surge of nation-building, since the Americans goals at that moment were national liberties. Besides, the written Constitution set up the principles of separation of powers and Federalism which created a true national government. We will also see how the Americans could achieve their dearest goals such as, national liberation and free enterprise based on recurrent values like democracy, manifest destiny and the feeling of superiority. Moreover, these values in turn have defined the American national identity and a sense of unity making the Americans feel that they are a special nation capable of overcoming the most challenging situations. In spite of this, the United States still has to deal with some unresolved conflicts suc h as, racism and economic unequality. To begin with, the building of the nation started with the American Revolution (1775). The goal of the war was national liberation. Patriots believed that the British were conspiring to take away their tradional freedoms, so they sought to protect their liberties such as, property, the right to bring their legal cases before independent judges, the right to call their own assemblies, and the right to engage in trade without restrictions and to pay no taxes voted by a British Parliament in which they had no direct representation. Although the seed of democracy was planted early in the colonies through town meetings and assemblies which decided on local issues, it was not a complete democracy since only landowners could vote. However, the experience of self-government in the colonies increased their sense of autonomy. In addition to this, as the colonies were...

Soto Like Mexicans Essay Essays

Soto Like Mexicans Essay Essays Soto Like Mexicans Essay Paper Soto Like Mexicans Essay Paper My grandma gave me bad advice and good advice when I was in my early teens. For the bad advice. she said that I should go a Barber because they made good money and listened to the wireless all twenty-four hours. â€Å"Honey. they don’t work como burros. † she would state every clip I visited her. She made the sound of donkeys hee-hawing. â€Å"Like that. honey! † For the good advice. she said that I should get married a Mexican miss. â€Å"No Okies. hijo†- she would say- â€Å"Look. my boy. He marry one and they fight every twenty-four hours about I don’t cognize what and I don’t cognize what. † For her. everyone who wasn’t Mexican. black. or Asiatic were Okies. The Gallic were Okies. the Italians in suits were Okies. When I asked about Jews. whom I had read about. she asked for a image. I rode place on my bike and returned with a calendar picturing the of import races of the universe. â€Å"Pues si. boy Okies tambien! † she said. nodding her caput. She waved the calendar off and we went to the life room where she lectured me on the virtuousnesss of the Mexican miss: foremost. she could cook and. second. she acted like a adult female. non a adult male. in her husband’s place. She said she would state me about a 3rd when I got a small older. I asked my female parent about it- becoming a Barber and marrying Mexican. She was in the kitchen. Steam curled from a pot of boiling beans. the wireless was on. looking every bit knee bend as a loaf of staff of life. â€Å"Well. if you want to be a barber- they say they make good money. † She slapped a unit of ammunition steak with a knife. her spectacless stealing down with each work stoppage. She stopped and looked up. â€Å"If you find a good Mexican miss. get married her of class. † She returned to slapping the meat and I went to the backyard where my brother and David King were sitting on the lawn experiencing the interior of their cheeks. â€Å"This is what girls feel like. † my brother said. rubbing the interior of his cheek. David put three fingers inside his oral cavity and scratched. I ignored them and climbed the back fencing to see my best friend. Scott. a second-generation Okie. I called him and his female parent pointed to the side of the house where his sleeping room was a little aluminium dawdler. the sort you gawk at when they’re flipped over on the expressway. wheels whirling in the air. I went around to happen Scott pitching quoitss. I picked up a set of rusty 1s and joined him. While we played. we talked about school and friends and record albums. The quoitss scuffed up soil. sometimes pealing the Fe that threw out a meager shadow like a sundial. After three argued-over games. we pulled two oranges each from his tree and started down the back street still speaking school and friends and record albums. We pulled more oranges from the back street and talked about who we would get married. â€Å"No discourtesy. Scott. † I said. with an orange piece in my oral cavity. â€Å"but I would neer get married an Okie. † We walked in measure. about touching. with a sled of shadows dragging behind us. â€Å"No discourtesy. Gary. † Scott said. â€Å"but I would neer get married a Mexican. † I looked at him: a Fang of orange piece showed from his crunching oral cavity. I didn’t think anything of it. He had his miss and I had mine. But our seventh-grade vision was the same: to get married. acquire occupations. purchase autos and possibly a house if we had money left over. 26 The Short Story We talked about our hereafter lives until. to our surprise. we were on the business district promenade. two stat mis from place. We bought a bag of Zea mays everta at Penneys and sat on a bench near the fountain watching Mexican and Okie misss base on balls. â€Å"That one’s mine. † I pointed with my mentum when a miss with superciliums arched into black rainbows ambled by. â€Å"She’s cute. † Scott said about a miss with xanthous hair and a mouthful of gum. We dreamed out loud. our mentums busy indicating out misss. We agreed that we couldn’t wait to go work forces and raise them onto our laps. But the adult female I married was non Mexican but Nipponese. It was a surprise to me. For old ages. I went about wide-eyed in my hunt for the brown miss in a white frock at a dance. I searched the resort area at the baseball diamond. When the misss raced for ground balls. their hair bounced like something that couldn’t be caught. When they sat together in the lunchroom. caputs pressed together. I knew they were speaking about us Mexican cats. I saw them and dreamed them. I threw my face into my pillow. doing up sentences that were good as in the films. But when I was twenty. I fell in love with this other miss who worried my female parent. who had my grandma inquiring one time once more to see the calendar of the Important Races of the World. I told her I had thrown it off old ages before. I took a much-glanced-at snapshot from my billfold. We looked at it together. in silence. Then grandmother reclined in her chair. illume a coffin nail. and said. â€Å"Es reasonably. † She blew and asked with all her concern pushed up to her brow: â€Å"Chinese? † I was in love and there was no looking back. She was the 1. I told my female parent who was slapping beefburger into cakes. â€Å"Well. certain if you want to get married her. ’ she said. But the more I talked. the more concerned she became. Later I began to worry. Be it all a error? â€Å"Marry a Mexican miss. † I heard my female parents say in my head. I heard it at breakfast. I heard it over math jobs. between Western Civilization and cultural geographics. But so one afternoon while I was thumbing place from school. it struck me like a baseball in the dorsum: my female parent wanted me to get married person of my ain societal class- a hapless miss. I considered my bride-to-be. Carolyn. and she didn’t expression hapless. though I knew she came from a household of farm workers and pull-yourself-upby-your-bootstraps ranchers. I asked my brother. who was get marrieding Mexican hapless that autumn. if I should get married a hapless miss. He screamed â€Å"Yeah† above his awful guitar playing in his sleeping room. I considered my sister who had married Mexican. Cousins were dating Mexican. Uncles were remarrying hapless adult females. I asked Scott. who was still my best friend. and he said. â€Å"She’s excessively good for you. so you better non. † I worried about it until Carolyn took me place to run into her parents. We drove in her Plymouth until the houses gave manner to farms and spreads and eventually her house 50 pess from the main road. When we pulled into the thrust. I panicked and begged Carolyn to do a U-turn and travel back so we could speak about it over a sodium carbonate. She pinched my cheek. naming me a â€Å"silly male child. † I felt better. though. when I got out of the auto and saw the house: the chipped pigment. a chapped window. boards for a walk to the back door. There were corroding autos near the barn. A tractor with a cyberspace of spiderwebs under a mulberry. A field. A bale of biting wire like children’s scrabbling tilting against an empty poulet henhouse. Carolyn took my manus and pulled me to my future mother-in-law. who was coming out to recognize us. We had tiffin: sandwiches. murphy french friess. and iced tea. Carolyn and her female parent talked largely about neighbours and the fold at the JapaneseThe Short Story 27 Methodist Church in West Fresno. Her male parent. who was in khaki work apparels. excused himself with a moving ridge that was about a salutation and went outside. I heard a truck start. a Canis familiaris bark. and so the truck rattle off. Carolyn’s female parent offered another sandwich. but I declined with a shingle of my caput and a smiling. I looked around when I could. when I was non stating over and over that I was a college pupil. suggesting that I could take attention of her girl. I shifted my chair. I saw newspapers piled in corners. dust-covered cereal boxes and acetum bottles in corners. The wallpaper was bubbled from rain that had come in from a bad roof. Dust. Dust ballad on lamp sunglassess and window Sillss. These people are merely like Mexicans. I thought. Poor people. Carolyn’s female parent asked me through Carolyn if I would wish a sushi. A home base of black and white things were held in forepart of me. I took one. wide-eyed. and turned it over like a foreign coin. I was seize with teething into one when I saw a kitty crawl up the window screen over the sink. I chewed and the kitty opened its oral cavity of panic as she crawled higher. desiring in to paw the leftovers from our home bases. I looked at Carolyn who said that the cat was merely demoing off. I looked up in clip to see it fall. It crawled up. so fell once more. We talked for an hr and had apple pie and java. easy. Finally. we got up with Carolyn taking my manus. Slightly abashed. I tried to draw off but her clasp held me. I let her hold her manner as she led me down the hallway with her female parent right behind me. When I opened the door. I was startled by a kitten clinging to the screen door. its oral cavity shouting â€Å"cat nutrient. Canis familiaris biscuits. sushi†¦ . † I opened the door and the kitty. still keeping on. whined in the linguistic communication of hungry animate beings. When I got into Carolyn’s auto. I looked back: the cat was still cleaving. I asked Carolyn if it were perchance hungry. but she said the cat was being silly. She started the auto. waved to her female parent. and bounced us over the rain-pocked thrust. chucking my thigh for being her lover babe. Carolyn waved once more. I looked back. wave. so goggling at a window screen. where there were now three kitties clawing and shouting to acquire in. Like Mexicans. I thought. I remembered the Molinas and how the cats clung to their screen- cats they shot down with squirt guns. On the main road. I felt happy. pleased by it all. I patted Carolyn’s thigh. Her people were similar Mexicans. merely different.