Rachel Carson and the Enviromental Movement Research Paper

Rachel Carson and the Enviromental Movement - Research Paper Example She continued her personal research and writings about the environment and ecological issues during her federal service and subsequently published two books Under the Sea Wind (1941) and The Sea around Us (1951). Carson was conferred with two doctorate degrees; national book award and a national science writing prize and excerpts from her later book were reprinted in famous magazines like Science Digest, The Yale Review and The New Yorker. Later she left her federal employment and started to focus on third book The Edge of the Sea (1955). In early 1957, a letter from an old friend from Duxbury, Massachusetts described declining rates of bird population in her private sanctuary after the authorities’ sprayed fuel oil and DDT. Immediately, Carson researched DDT and other chemicals toxic effects and this became the basis of her next book Silent Spring (1962) (Mahoney, 2009). Silent Spring was initially published in serialized magazine form, later it was released in the form of a book (Clapp, 2000). The book became an instant bestseller and was widely covered by media. More than 250,000 copies of her book were sold in the first four months of its release making it a bestseller (Lantier, 2009). Back then, forest and crop lands were extensively sprayed with pesticides such as DDT to eradicate insect pests. However, unexpected consequences were witnessed due to spraying against fire ants in South and mosquitoes along the coastal line from New York to Maine. The result was successful eradication of insect pests and disease vectors but at the cost of immense damage to local fauna, wild life and environment. Scientists documented decline in fish, birds and animal population along with water and soil contamination. Also, alarming variations in the reproductive patterns and egg shells of various birds that primarily fed on fish were noticed. These changes not only indicated hormonal and reproductive changes but also a steep decline in avian population that could end anger the existence of certain species (Lear, 2001). Specifically, three unrelated events were extremely vital in providing evidence to Carson for the detrimental effects of pesticides, chemicals and toxic wastes on human health and environment. First one, involved the USDA campaign to eradicate fire ant from Southern states by spraying with dieldrin and heptachlor. These two pesticides accumulated in water ways and soil causing wildlife damage (Lear, 1993). As a consequence of fire ant control program heavy invertebrate immortality, population decline, slow recovery rate and residual traces of heptachlor and heptachlor epoxide was witnessed in majority of fauna in treated area (Dunlap, 2008). Carson (2002) labeled the fire ant eradication program as â€Å"ill-conceived, badly executed and thoroughly detrimental experiment in destruction of animal life†. Secondly, the aerial spraying of DDT mixed with fuel oil for mosquito control caused decline in bird population in coastal areas (Lear, 1993). Thirdly, DDT was sprayed on elm trees in Michigan State University campus aiming to eliminate bark beetle that was responsible for spreading the Dutch elm disease. However, along with pest elimination large population of robin died as a result of feeding on earthworms; that fed on DDT infested leaves (Lear, 1993). Other primary events that justified Carson’s claims was banning of cranberry product sale for three years (1957-59) as high levels of toxic chemicals known to cause cancer in rats was discovered

The Phenomenon of Harmful Algal Blooms Essay Example | Topics and Well Written Essays - 750 words

The Phenomenon of Harmful Algal Blooms - Essay Example Among these species, some comes out as a harmful breed for other aquatic animals and human who comes in contact with them because they release toxins which disables certain aquatic lives to breathe or can be dangerous because of their accumulated biomass. These harmful algal blooms are formerly known as â€Å"red tides†, because many were found composed of dinoflagellates with red pigments, which cause discoloration of water in red, but can also discolor water into brown or green. Algal blooms refer to a large concentration of marine microorganism and they get harmful when they start excreting poisonous toxins and become as a contributing factor in hundreds of mortalities of aquatic mammals, fishes, birds and other marine and coastal species which happens at the exposure of a potent neurotoxins. Excretion of toxins can result in deaths of a large number of aquatic species. Harmful Algal Blooms also put a negative impact on natural beauty and have bad odors produced by the deca ying of biomass. Theory Researchers and investigation teams are still unable to know the root cause and it is still controversial. Some theories are underlined, for explaining some of the causes that might be the reason of such dangerous Algal Blooms, threatening millions of aqua marine lives. It is believed that toxin blooms are often in result of one or more species of Cyanobacteria which are blue and green algae and grow on nutrient pollution. These spread during warm season of the year and produces both green (chlorophyll) and blue (phycocyanin) which appears as blue and green discoloration of water. It was previously referred as Red Tides, but with the passage of time, things got clear that these harmful algal blooms are not associated with the movement of tides and can vary in color from red to brown, green and blue, therefore they are now known as HABS (Harmful Algal Blooms). They are dangerous because of their toxins or the manner in which the physical structure of the cell affect co occurring species and alter food web process. It can be extremely dangerous when the water is clear with low concentration of cell in the presence of toxic HABs. Micro or Macro-algae is termed for seaweeds as well which sometimes out grows and causes serious ecological problems like habitat alteration, indigenous species and lowers oxygen level in deep water. Moreover, some HABs are not algae but small animals, who do not grow with photosynthesis but get their nutrition by grazing. A continuous research is going on since decades to get to the root cause of harmful algal blooms. Things are getting clear with the study but root issues are still inapproachable. Contributing Factors A study was carried out to find out the factors that contribute in the massive growth of harmful Algal Blooms. In some coastal regions, they appeared to be completely natural with a seasonal coastal upwelling and with the movement of ocean currents but in some areas, it is noticed that human activi ties are helping them grow massively. They are getting nutrition through human loading. Coastal pollution is the biggest factor, helping HABs to develop at large scale through systematic increase in water temperature and human waste disposal. Iron rich dust influx from large deserts can highly promote the cause of HABs. It is still unclear that what initiates this dangerous algae but research is still going on to reach the root issue. They grow quickly with an abundance of nitrates and phosphates which gets to coastal areas through agricultural run outs or storm water runs, coinciding with warmth which ultimately provide the best atmosphere to grow. Once the bloom is initiated it travels or spread hundreds or thousands of kilometers through coastal currents by wind deviation. Threats It

Discussion About Genetically Modified Foods Essay Example for Free

Discussion About Genetically Modified Foods Essay Outline Introduction a. The genetically modified foods are a long issue which is widely debated. b. People feel confused about their safety. I. Views a. ) Magana-Gomez’s argument. b. ) He argues that negative effects of GM food were identified â€Å"at molecular and microscopic levels†. c. ) Curieux-Belfond CL contends that the benefits of genetically modified foods far outweigh the disadvantages. II. Genetically modified foods: Beneficial views Adverse views a. What is the possible risk for genetically modified crops considering nutrition and health? b. Whether the economic effects are the most important?c. Will it bring severe environment problems? III. Arguments for beneficial effects of GM foods a. Firstly, transgenic technology has made considerable progress in food applications. b. Transgenic food has successfully lowered food prices and ensured food safety. c. GM foods significantly reduce the environmental impact of agriculture. Introduction The author, Magana-Gomez, critically analyzed the risk assessment methods of transgenic food for human nutrition and health in the paper, â€Å"Risk assessment of genetically modified crops for nutrition and health†. Magana reviewed various modes including different feeding period, animal modes and parameters in the paper published in 2011 by Nutrition Reviews (Magana G, 2009). In consistent with his studies, negative effects of GM food were identified â€Å"at molecular and microscopic levels†. However, with our entry into the 21st century, genetically modified foods have undergone even faster development. However, there are also many doubts about the safety of genetically modified foods. Therefore, genetically modified foods have become a hot topic issue. Personally, although there are many controversies about GM food, I still insist on the research and promotion of transgenic food due to its diverse benefits. Views According to Curieux-Belfond CL, he could identify the factors that deserve consideration before â€Å"commercialization and promotion of transgenic food† (182). In this paper, â€Å"Factors to condider before production and commercialization of aquatic genetically modified organisms: the case of transgenic salmon†, the author took transgenic salmon as an example, in which Curieux-Belfond examined the corresponding impacts in terms of aquaculture, wildlife, ecosystem and human health. The paper published in 2011 by Evironmental Science Policy suggested that GM food undoubtedly contributed to economic benefits without exerting too much extra burden (Curieux B, 2009). In the end, the author believed that the benefits of genetically modified foods far outweigh the disadvantages. Analysis of the benefits of genetically modified foods Magana’s argument is persuasive when he assessed the risks about GM food. However, since genetic engineering techniques have successfully transferred anti-viral, insect resistance, cold resistance and other genes to cotton, wheat, tomatoes and other plants, we can get stable new varieties of genetically modified, with low production cost and high-yield food, which will ease the world food shortage and reduce the use of pesticides to a large extent. Based on the above reasons, I will provide a critical analysis with the following specific examples which show his argument is partially wrong. Firstly, transgenic technology has also made considerable progress in animal food applications. At present, a variety of mammal and bird genes are successfully integrated into the genome of fish, which can significantly enhance transgenic fish muscle protein content and improve growth speed. With the development of genetic engineering technology, people have been freed from natural enzymes to a large extent. Especially when the enzyme obtained from natural protein material encounters difficulties, genetic engineering has the unique advantages of natural gene cloning (Seralini GE, 2011). Thus, it can be highly expressed in microorganisms with mass production by fermentation. At present, the transgenic enzymes are widely used in the food industry, such as maltose enzymes amylase, pectinase and the juice protease. The food nutritional quality modified by genetic engineering has also made remarkable achievements. For instance, the genetic engineering technology has been applied for seed protein improvement, which renders it possible to change the plant composition and amino acid content. Secondly, transgenic food has successfully lowered food prices and ensured food safety, which helps increase production and food supply while reducing the farm labor and pesticide applications, agricultural inputs and production costs (Weasel LH, 2009). In the future, GM crops have great potential in solving the food crisis. For instance, by applying transgenic technology to the human staple foods of rice and wheat, people can increase food production and improve nutritional quality, which will provide mankind with higher-quality food. Furthermore, GM foods have also proved effective in alleviating poverty and hunger. The world’s poorest 50% of the population are small and resource-poor farmers, while 20% living in rural areas without their own land actually depend on agriculture. Therefore, the increase in small-scale and resource-poor farmers’ income will directly assist 70% of the world’s poorest people (Curieux-Belfond O, 2009). So far, genetically modified cotton in India, China and South Africa have already made a significant contribution to more than 1. 2 million poor farmers’ income. The benefits of genetically modified corn in the Philippines and South Africa will be much clearer in the future. In addition, genetically modified rice has great potential to benefit 250 million poor families in Asia, whose benefits will reach 10 million people (Curieux-Belfond O, 2009). Transgenic food also helps to reduce land development. Transgenic technology has been developed to improve the current 1. 5 billion hectares of arable land productivity through conservation of biological resources, thereby reducing land development and deforestation. Thirdly, I will demonstrate such improvement since they significantly reduce the environmental impact of agriculture. Traditional agriculture has a significant impact on the environment, and transgenic biotechnology can help reduce this impact. In the first decade of application of genetically modified crops, by planting herbicide and insect-resistant characteristics, transgenic technologies have greatly reduced the use of pesticides, saved fossil fuels and reduced carbon dioxide emissions. Undoubtedly, genetically modified crops with drought-tolerant genes will improve water-use efficiency and maintain sustainable agricultural development, which will play an important role in easing the crisis of population growth and global food shortage (Artemis D, 2009). GM crops have also contributed to reduce carbon dioxide emissions in two main ways, reducing greenhouse gas emissions and helping slow climate change. First, by reducing fuel use, the spraying of insecticides and herbicides, GM crops continue to reduce carbon dioxide emissions. In 2007, genetic engineering has been stated to reduce 1. 1 billion kilograms of carbon dioxide emissions, which is equivalent to a decrease of 50 million cars from the road. Secondly, herbicide-resistant GM crops help reduce tillage applications, which protects the land and enhances soil carbon sequestration. Conclusions Despite the many advantages of GM food, we cannot ignore the risks. After genetically modified foods have been taken into the human body, they may cause harm to human health. Moreover, after a large number of transgenic crops come into nature, they may be biologically harmful to ecosystems. Since the risks of GM food is serous, it is important for us to reflect on it first. Any of the scientific and technological developments should be comprehensive and provide well-being for human life. If genetically modified foods can only increase our economic interests and improved material life without the moral, social and environmental harmony, they cannot be defined as making great contribution to social development. Therefore, whether GM food is a benefit or a disadvantage really depends on what kind of human values people hold (Qaim M. 2009). That is the question we reflect on deeply. In contemporary society, with the rapid development of science and technology, the economic situation of the human and the material standard of living has been soaring. It seems that mankind is taking great proud for the advanced technology. However, we should look back to what the living environment we rely on is subjected to. Therefore, genetically modified foods are seen as the savior of mankind, which is actually human self-centered ideology. Of course, with the continuous development of biotechnology and genetic engineering, human beings have the ability to create more genetically modified food. Therefore, the drawbacks of genetically modified food are not the technology itself, but rather due to humans themselves. Thus, personally, I fully sanction the development of GM foods while we should objectively analyze the potential risks. Reference Artemis D. 2009. â€Å"Health risks of genetically modified foods. † Food Science and Nutrition. 49. (2):164-175. Curieux B, Vandelac L, ect. 2009. â€Å"Factors to condider before production and commercialization of aquatic genetically modified organisms: the case of transgenic salmon. † Evironmental Science Policy. 12. (2):170-189. Magana G, Javier A, Calderon de la Barca, Ana M. 2009. â€Å"Risk assessment of genetically modified crops for nutrition and health. † Nutrition Reviews. 67 (1):1-16. Qaim M. 2009. â€Å"The economics of genetically modified crops. † Annual Review of Resource Economics. 1:665-693. Seralini GE, Mesnage R, ect. 2011. â€Å"Genetically modified crops safety assessments: present limits and possible improvements. † Environmental Sciences Europe. 23. (10): 1-10. Weasel LH. 2009. â€Å"Food Fray: Inside the Controversy over Genetically Modified Food. † American Management Association. Amacom, 86-150. Print.

Effectiveness of Reduced Carbohydrate Intake

Effectiveness of Reduced Carbohydrate Intake Introduction/Background The ketogenic diet proposes a reduction of carbohydrate intake, replaced with high fat. Studies convey that low carbohydrate diets promote a higher degree of short term weight loss than conventional low fat diets (Manninen, 2004). Moreover, reductions in fasting blood lipids and insulin concentrations are greater in low carbohydrate diets (Manninen, 2004). Fundamentally, the reduction in carbohydrates renders the body in an efficient metabolic state of dietary ketosis whereby fat is turned into ketone bodies within the liver and burned for energy to utilize in the extra-hepatic tissues. Thereby, short term restriction results in a significant decrease in fat mass and a related increase in lean body mass as fat stores become a primary source of energy (Manninen, 2004). However, low carbohydrate diets may significantly increase fat and cholesterol volume, correspondent with an increase in low density lipoprotein (LDL) cholesterol (Hu et al., 2012). Furthermore, reduction in an accustom ed fibre intake may result in constipation, or fatigue induced by a carbohydrate deficiency from altered hormonal states and electrolyte imbalances (Bilsborough Crowe, 2003). Additionally, complications relative to kidney function may arise (eg. osteoporosis and kidney stones) and can be linked to the long term restriction of carbohydrates (Bilsborough Crowe, 2003). Ketosis is a common metabolic adaptation in low carbohydrate diets. Glycogen stores are utilized to meet energy demands of the body when dietary carbohydrates are limited; the reserves are exhausted within 24 to 48 hours of carbohydrate restriction (Bilsborough Crowe, 2003). However, glycogen is bound to water in a proportion of 1:3g (Bilsborough Crowe, 2003). Therefore, the subsequent 1-2kg fat reduction can be attributed to diuresis as opposed to burning adipose body fat stores. Consequently, the decrease is not a true indicator of weight loss as glycogen and water stores will be replenished (ie. rebound water weight will be gained) once the diet is terminated due to an influx of carbohydrates, which retain water in the muscles glycogen stores (Bilsborough Crowe, 2003). As depicted in rodent studies, Caton et al. (2009) discerned that the termination of a low carbohydrate diet resulted in weight regain once the habitual diet resumed. Notwithstanding, the diuretic effect is restr ained to the first week of the low carbohydrate diet. Subsequent weight loss is entirely due to the ruminant adaption to energy expenditure and balance. Larosa, Fry, Muesing, Rosing (1980) observed a 7.7 kg loss in participants on the Atkins diet in 8 weeks; 1.8 kg lost per week in the initial two week period, and 0.7 kg per week thereafter. Westman et al. (2002) remarked alike results with a range of 0 to 18.6 kg in body weight reduction over 24 weeks (Figure 1). Once glycogen reserves are exhausted, fat oxidation is increased to satisfy the energy demands unfulfilled by gluconeogenesis and triglyceride breakdown as lean mass is inefficiently broken down to glucose and energy deficits proceed uncovered. A directly proportional increase in muscle fatigue and catabolism (conversion of protein to glucose via gluconeogenesis) transpires when muscle glycogen is depleted, however; an important substrate within ATP production (Bilsborough Crowe, 2003). Liberation of fatty acids into the blood are oxidized by the liver for energy expenditure to form acetoacetate and further converted to ÃŽÂ ²-Hydroxybutyric acid (ie. ketone bodies) from acetyl CoA, filtered by the kidneys, inducing an increase in renal loss of sodium and consequent water loss. Furthermore, dehydration is common due to the increased water loss associated with ketotic-induced diuresis, onsetting early fatigue in contracting skeletal muscle (Bilsborough Crowe, 2003). The long term restriction of carbohydrates pose an increased risk of cardiovascular disease. LDL cholesterol is an eminent factor in atherogenesis, directly correlated with blood ÃŽÂ ²-Hydroxybutyrate (Johnston et al., 2006). Lin Borer (2016) denote a 30% decrease within physiological insulin resistance 24 hours after three low carbohydrate meals, which increase cardiovascular disease mortality. Moreover, metabolic costs may be associated with the utilization of fatty acids as intermediates of the citric acid cycle imperative for energy expenditure are depleted. Russell Taegtmeyer (1991) isolated rodent hearts utilizing acetoacetate as an energy source. The researchers observed a 50% reduction in the contractile ability of the heart within an hour; a contractile failure reversed by pyruvate carboxylation. Indeed, there are benefits and detriments of the dietary regime. However, evidence from clinical and animals trials to achieve a loss in weight and adaptive metabolic risk factors is preliminary. Review of papers Research concerning the effectiveness of reduced carbohydrate intake is limited by small sample sizes and short treatment periods. Westman, Yancy, Edman, Tomlin, Perkins (2002) investigated the effects of a low carbohydrate dietary regime upon body weight and variable metabolic factors in a 6 month trial. 41 overweight (26-33 kg/m^2) yet otherwise healthy volunteers ages 18-65 were assigned to a low carbohydrate diet of A mean decrease in body weight of 9.0 +/- 5.3 kg among 39 volunteers was observed (Figure 1). Weight loss correlated with adherence of the dietary regime and ketonuria (P Statistically significant changes were obtained for various metabolic parameters relative to changes in serum levels (Table 1). Beneficial effects upon serum lipid levels are indicated; 29 volunteers experienced a net reduction in LDL cholesterol over 6 months (Table 2). Moreover, 37 volunteers had an increase in HDL cholesterol (Westman et al., 2002). However, there was no objective measure of physical activity, which is potentially confounding. Moreover, adherence is the largest determinant of a regimes effectiveness. Although group meetings are an objective measure of behaviour adherence, the conceptualization of dietary adherence is disparate, propagated by psychological and socioeconomic determinants. Nonetheless, multiple indicators of adherence to the assigned dietary regime was employed in an attempt to negate the aforementioned issue. Furthermore, all 41 participants developed ketonuria during the trial, strongly correlated with self-reported adherence to the dietary regime. However, it is indispensable to obtain baseline data of macronutrient intake relative to the regime in question to ensure no dietary deficiencies confound the results. Additionally, past dietary intake is principal to document when controlling for baseline, yet macronutrient intake prior to the trial was not assessed. Often, blood/plasma ÃŽÂ ²-Hydroxybutyrate levels are the only index of ketosis as exhibited in the study of Westman et al. (2002). However, urinary ketones poorly represent the concentrations of blood/plasma and yield less informative results (Table 2). Acetoacetate and acetone are rarely measured and should be investigated in a low carbohydrate dietary regime; direct manipulation is necessary as the correlational approach cannot provide casual evidence of ketones. Moreover, dietary regime data can be subject to concerns of memory and recall. Additionally, volunteers who completed the dietary records may be more likely to report adhering to the regime. However, macronutrient data was to be recorded within 24 hours of consumption. Also, the usage of skinfold calipers to estimate fat mass poses another limitation. Clasey et al. (1999) discerned that anthropometric estimation yield large mean differences and appreciable inter-individual variability. Volunteers were not recruited according to strict inclusive criteria, therefore the group is particularly inhomogeneous. However, as the participants were healthy, extrapolating the results to individuals with metabolic diseases should be with discretion. Moreover, no substantial losses to follow-up were incurred as a completion rate of 80% was noted. However, the disadvantageous effects regarding volunteers who did not cohere to the program cannot be eradicated; structured programs are more effective at weight loss than self help approaches (Heska et al., 2003). Nevertheless, the findings of Westman et al. (2002) emphasize the imminent need for large scale trials on the compound interplay between low carbohydrate diets and long term aftereffects. The mechanisms and contributing factors underlying the effectiveness of low carbohydrate high fat diets (LC-HFD) remain uncovered. Caton, Yinglong, Burget, Spangler, Tschà ¶p, Bidlingmaier (2009) examined the effects of a LC-HFD upon body composition and metabolic parameters (eg. growth hormone, IGF-I) in 48 male Wistar rats over a 32 day period. Two studies were conducted. Study one constituted the maintenance of standard laboratory chow (CH) or LC-HFD in adolescent or mature rodents for 16 days prior to a switch in dietary regime (Caton et al., 2009). However, only mature rodents were maintained on the diets for 16 days in study two in an attempt to illuminate the culmination of LC-HFD upon fat pad mass. All rats were pair-fed to ensure the observations would be due to the macronutrient composition of the diet. Metabolic assessments (eg. energy expenditure) were made at baseline and 16 days post-exposure to the first and second diet with indirect calorimetry (Caton et al., 2009). ANOVA was performed to assess feeding efficiency and corresponding body weight changes relative to age and diet. Moreover, an alpha value of 0.05 was rendered in t-test analysis to examine the disparity between body weight and fat pad mass, with Bonferroni to discern any significant differences between the groups (Caton et al., 2009). LC-HFD rodents exhibited a significant reduction in body weight irrespective of age and subsequent diet change (Figure 2). Nonetheless, ingesting CH after initial LC-HFD resulted in weight regain in comparison to CH maintained rodents (Caton et al., 2009). Moreover, mature rats maintained on LC-HFD gained remarkably less body weight than CH (CH 27 +/- 1g; LC-HFD 2 +/- 3g; P LC-HFD may have implications for the alteration of body composition as hormones (eg. GH, IGF-I) known to increase lean body mass diminished within the study; reflective in decreased muscle mass. Declines in IGF-I, lean body mass, and glycogen availability may contribute to the increased fatigue experienced in ketogenic diets. Subsequently, the weight loss procured is not effortlessly sustainable due to an energy imbalance propagating an enhanced drive to regain lost mass. However, rodent studies are not entirely translatable to human subjects, and moreover, not appropriately designed. Perigonadal fat pads have a large surface area and are readily accessible. Consequently, they are frequently utilized in research, as exhibited in the study of Caton et al. (2009). However, humans do not harbour a fat depot analogous to the fat pads; and thereby cannot be truly deemed as visceral. Furthermore, Bazzano et al. (2014) measured body weight and a myriad of biomarkers in 148 participants on variable carbohydrate diets over a year. The researchers concluded that a low carbohydrate diet was more effective for weight loss and reduced cardiovascular risks. Whereas Vogt (2014) published a conflicting paper; a low carbohydrate diet in maternal rodents alters offspring metabolism whereby risk for obesity is pronounced. There are indeed neuroanatomical similarities between humans and rodents which coincide with food intake and energy homeostasis. However, the study un covered that the diet damaged the hypothalamus, pivotal for appetite and energy management. No attempt was made to elucidate the contradiction between the reaction of a rodent versus a human, which is misleading. Additionally, rodent strain can determine the susceptibility to diet-induced metabolic changes. If a more resistant strain is utilized, effects may go unnoticed. Moreover, trials disregard elements of rodent diets (standard laboratory chow; high carbohydrate low fat diet) that have direct metabolic outcomes, such as soy, which has effects akin to estrogen relative to activity, fat storage, and macronutrient and water retention. In contrast, low carbohydrate high fat diets often have sugar as a constituent associated with weight gain and insulin resistance, ultimately selecting for fat sensitivity. It is notable that a sufficient amount of protein is required to maintain lean body mass, yet the diet in the study of Caton et al. (2009) constituted of low protein. Dietary control in rodents is possible to a degree unfeasible in humans. Metabolic attributes of the human condition cannot be entirely recapitulated in a single animal model. Summary opinion/Conclusion A multitude of clinical trials that concern low carbohydrate diets have small sample sizes and insufficient statistical power to detect the incremental changes that occur in metabolic risk factors (Hu et al., 2012). Such factors are important determinants of cardiovascular morbidity and mortality; thereby, it is ineffective to derive conclusions upon the effects of low carbohydrates upon overall health long term. In contrast to the results inferring an increase in cardiovascular risk, Hu et al. propose low carbohydrate diets as an alternative approach for fat mass reduction without worsening metabolic risk factors. Moreover, Bueno, de Melo, de Oliveria, da Rocha Ataide (2013) denote a doubled average increase in HDL compared to low fat dieters, conferring cardiovascular benefits with an improved cholesterol profile comparable to Westman et al. (2002) noting an increase in HDL. Nonetheless, six weeks is a short duration of time, and the research conveys that the dietary regime is sl ightly advantageous in weight loss for up to six months (Fields, Ruddy, Wallace, Shah, Millstine, 2016). Potential metabolic consequences can be alleviated with increased water, fibre, and calcium intake. References Bazzano, L. A., Hu, T., Reynolds, K., Yao, L., Bunol, C., Liu, Y., He, J. (2014). Effects of low  -carbohydrate and low-fat diets: A randomized trial. Annals of internal medicine, 161(5), 309-318. Bilsborough, S. A., Crowe, T. (2003). Low carbohydrate diets: What are the potential short and long  term health implications? Asia Pacific Journal of Clinical Nutrition, 12(4), 397-404. Bueno, N., de Melo, I., de Oliveira, S., da Rocha Ataide, T. (2013). Very-low-carbohydrate ketogenic  diet v. low-fat diet for long-term weight loss: A meta-analysis of randomised controlled trials. British Journal Of Nutrition, 110(07), 1178-1187. http://dx.doi.org/10.1017/s0007114513000548 Caton, S. J., Yinglong, B., Burget, L., Spangler, L. J., Tschà ¶p, M. H., Bidlingmaier, M. (2009). Low  carbohydrate high fat diets: Regulation of energy balance and body weight regain in rats.  Obesity, 17(2), 283-289. Clasey, J. L., Kanaley, J. A., Wideman, L., Heymsfield, S. B., Teates, C. D., Gutgesell, M. E.,   Weltman, A. (1999). Validity of methods of body composition assessment in young and older  men and women. Journal of Applied Physiology, 86(5), 1728-1738. Fields, H., Ruddy, B., Wallace, M., Shah, A., Millstine, D. (2016). Are low-carbohydrate diets safe  and effective? The Journal Of The American Osteopathic Association, 116(12), 788.  http://dx.doi.org/10.7556/jaoa.2016.154 Heshka, S., Anderson, J., Atkinson, R., Greenway, F., Hill, J., Phinney, S. et al. (2003). Weight loss  with self-help compared with a structured commercial program. JAMA, 289(14), 1792.  http://dx.doi.org/10.1001/jama.289.14.1792 Hu, T., Mills, K., Yao, L., Demanelis, K., Eloustaz, M., Yancy, W. et al. (2012). Effects of low-  carbohydrate diets versus low-fat diets on metabolic risk factors: A meta-analysis of  randomized controlled clinical trials. American Journal Of Epidemiology, 176(suppl 7), S44-  S54. http://dx.doi.org/10.1093/aje/kws264   Johnston, C. S., Tjonn, S. L., Swan, P. D., White, A., Hutchins, H., Sears, B. (2006). Ketogenic low-  carbohydrate diets have no metabolic advantage over nonketogenic low-carbohydrate diets. The  American Journal of Clinical Nutrition, 83(5), 1055-1061.   Larosa, J. C., Fry, A. G., Muesing, R., Rosing, D. R. (1980). Effects of high-protein, low-  carbohydrate dieting on plasma lipoproteins and body weight. Journal of the American Dietetic  Association, 77(3), 264-270.   Lin, P. J., Borer, K. T. (2016). Third exposure to a reduced carbohydrate meal lowers evening  postprandial insulin and GIP responses and HOMA-IR estimate of insulin resistance. PloS  one, 11(10), e0165378.   Manninen, A. (2004). Metabolic effects of the very-low-carbohydrate diets: Misunderstood  villains of human metabolism. Journal Of The International Society Of Sports Nutrition,  1(2), 7. http://dx.doi.org/10.1186/1550-2783-1-2-7   Russell 3rd, R. R., Taegtmeyer, H. (1991). Pyruvate carboxylation prevents the decline in contractile  function of rat hearts oxidizing acetoacetate. American Journal of Physiology-Heart and  Circulatory Physiology, 261(6), H1756-H1762.   Vogt, M. C., Paeger, L., Hess, S., Steculorum, S. M., Awazawa, M., Hampel, B., Predel, R. (2014).  Neonatal insulin action impairs hypothalamic neurocircuit formation in response to maternal  high-fat feeding. Cell, 156(3), 495-509.   Westman, E. C., Yancy, W. S., Edman, J. S., Tomlin, K. F., Perkins, C. E. (2002). Effect of 6-month  adherence to a very low carbohydrate diet program. The American Journal of Medicine, 113(1),  30-36. Table 1 Effect of a low carbohydrate dietary regime upon metabolic parameters Table 2 Effect of a low carbohydrate dietary regime upon serum lipid level and 24-hour urinary excretion Table 3 End-point hormone, glucose, and albumin analysis (study one; mean +/- s.e.m.) in adolescent and mature rodents maintained on CH or LC-HFD for 16 days Table 4 Energy expenditure (kcal/24 h) normalized for body mass at baseline; 16 days post-maintenance of CH and LC-HFD Figure 1. The effect of a low carbohydrate diet with additional nutritional supplementation upon body weight (n=41). Fat mass was estimated from skinfold thickness measurement. Fat mass decreased from 36.9 +/- 6.2 kg to 3.0 +/- 5.7 kg. Fat-free mass = body weight fat mass. The asterisk indicates P Figure 2. The development in body weight (g) of adolescent and mature rodents initially maintained on standard laboratory chow (CH) or low carbohydrate high fat diet (LC-HFD) for 16 days prior to a switch in dietary regime (denoted by an arrow) for another 16 days (means +/- s.e.m.). LC-HFD rodents exhibited a significant reduction in body weight compared to CH irrespective of age and subsequent diet change.

Childhood Experience :: essays research papers

Child company experience is one of the sweetest experience. We all have some child company experience. They play in your lap. Frequently they laugh, frequently they weep. When they touch your face with their soft little hands you feel a deep feeling of love and affection. Have you ever watched them! How do they behave! By God’s grace I always have got chances to be with small children. I watched them closely! What I felt I tell you categorically†¦ First thing, if you are a stranger, most children would prefer to keep away from you. They watch your activities closely, weather it suits them or not! When convinced about you they join you! When you hold them in your hands and kiss them with affection the feeling is divine. They see the world on sitting your shoulder. Beware if the junior urinates without signal. How much time your new and well creched clothing been treated with these juniors! Generally Ball and deep multi colors attracts a child most! They are easily attracted to it. The other thing - they are easily attracted to birds. They like its singing, twittering and of course flying. They run after to catch them. No matter they fail, they keep trying every time. Even you will see the kids imitating their sound. Have you seen kids imitating the frog’s jumping and how many times the kid imitates to the sound of motor vehicles. Kids enjoy the Balloon also. They play with excitement with it. The multi dark color balloons having various shapes make them wonder and by getting them they feel at cloud nine! Toys are the best friends of small kids. This involves their attention in to itself and makes them think and analyze. And have you heard two small kids talking to each other! This is always a great hearing. I would not tell any thing about it but would like to hear of your experience. Do tell me. Childhood Experience :: essays research papers Child company experience is one of the sweetest experience. We all have some child company experience. They play in your lap. Frequently they laugh, frequently they weep. When they touch your face with their soft little hands you feel a deep feeling of love and affection. Have you ever watched them! How do they behave! By God’s grace I always have got chances to be with small children. I watched them closely! What I felt I tell you categorically†¦ First thing, if you are a stranger, most children would prefer to keep away from you. They watch your activities closely, weather it suits them or not! When convinced about you they join you! When you hold them in your hands and kiss them with affection the feeling is divine. They see the world on sitting your shoulder. Beware if the junior urinates without signal. How much time your new and well creched clothing been treated with these juniors! Generally Ball and deep multi colors attracts a child most! They are easily attracted to it. The other thing - they are easily attracted to birds. They like its singing, twittering and of course flying. They run after to catch them. No matter they fail, they keep trying every time. Even you will see the kids imitating their sound. Have you seen kids imitating the frog’s jumping and how many times the kid imitates to the sound of motor vehicles. Kids enjoy the Balloon also. They play with excitement with it. The multi dark color balloons having various shapes make them wonder and by getting them they feel at cloud nine! Toys are the best friends of small kids. This involves their attention in to itself and makes them think and analyze. And have you heard two small kids talking to each other! This is always a great hearing. I would not tell any thing about it but would like to hear of your experience. Do tell me.

The Conditions For Factory Workers In Nineteenth Century Britain Essay

The Conditions For Factory Workers In Nineteenth Century Britain In the nineteenth century some people thought that factories were the best thing that ever created in Great Britain, however, workers inside them thought differently. No group was as exploited as children, who were put to work before they could read or write.Children were employed in industry and agriculture as soon as they started using their hands and were able to walk. They worked in farms, mills, factories, coalmines and on the streets. They sacrificed having an education for working long hours for little money, working in unacceptable conditions for employers who had no interest in safety. Children were put to work because in cities with overpriced rents and plenty of expenses, families could not get by on simply two incomes. Children who worked indoors were often exposed to toxic fumes, extreme heat, and dangerous machinery. Those who worked in glass factories often cut or burned themselves on broken or hot glass. Children in textile mills were forced to breathe in dust and cotton fibers. Many suffered permanent lung damage. Small and nimble children were assigned to equipment that required quick motions. Those who operated machinery designed for adults often lost fingers. Working long days meant they sometimes fell asleep on the job, putting them at risk for serious injury. A Manchester spinner explains that they are "locked up in factories eight stories high, (the worker) has no relaxation till the ponderous engine stops, and then they go home to get refreshed for the next day; no time for sweet association with their families; they are all alike fatigued and exhausted." In 1831, John Hobhou... ...arse. This oatcake was put into cans. Boiled milk and water was poured into it. This was our breakfast and supper. Our dinner was potato pie with boiled bacon it, a bit here and a bit there, so thick with fat we could scarce eat it, though we were hungry enough to eat anything. Tea we never saw, nor butter. We had cheese and brown bread once a year. We were only allowed three meals a day though we got up at five in the morning and worked till nine at night. Matthew Crabtree was interviewed by Michael Sadler's Parliamentary Committee (18th May, 1832): I began work at Cook's of Dewsbury when I was eight years old. We had to eat our food in the mill. It was frequently covered by flues from the wool; and in that case they had to be blown off with the mouth, and picked off with the fingers, before it could be eaten.

Boeing Case Analysis

Lincoln University Graduate School of Business Marketing Management Team Project Case 3: Boeing Company Team – 8 The five elements group: Derek Dellape : 7551 Synopsis As the largest aerospace company in the world, the Boeing Company employees more than 153,000 people in some 67 countries. The great dominance of Boeing is due to its 1997 merger with McDonnell Douglas Corporation, an aerospace manufacturer, and its 1996 purchase of the defense and space units of Rockwell International Corporation, an aerospace contractor.The corporation is the world’s number one maker of commercial jetliners and military aircraft with more than 9,000 commercial planes in service worldwide, including the 717 through 777 families of jets and the MD-80, MD-90, and MD-11. In the defense sector, the company makes military aircraft, including fighter, transport, and attack aircraft; helicopters; and missiles. Moreover, Boeing is the nation’s top NASA contractor and the leader of the U. S. industry team for the International Space Station and directly involved in commercial space projects such as satellite networks.History The Boeing Company was founded by William Edward Boeing and his colleague George Conrad Westervelt in 1916, in Seattle, Washington. The first plane built by Boeing and Westervelt was a â€Å"B & W† seaplane and it was sold to the government of New Zealand which employed the plane for mail delivery and pilot training. The enterprise was expanded due to opportunities in the airmail businesses which lead to development of an extremely versatile and popular airplane called the Model 40.This airplane could carry 1,000 pounds of mail and a complete flight crew, and still have room enough for freight or passengers. In the years leading up to World War II Boeing led the way in developing single-wing airplanes. They were constructed completely of metal to make them stronger and faster, more efficient aerodynamic designs were emphasized and finally, directional radios were installed which enabled better navigation and nigh flying. At this point, Boeing had established itself as the leading manufacturer of airplanes.During the 1950’s and 1960’s, Boeing was allowed to use the government-owned B-52 construction facilities for the development of a new civilian/military jet. This new jet, the B-707, first rolled off the assembly line in 1957. Boeing enjoyed a large degree of success and profitability with the 707. The company devoted its resources to the development of a number of other passenger jet models, including the 720 (a modified 707) and the 727 introduced in 1964, which was able to carry 143 passengers. During this time the company also recognized a demand for a smaller 100 passenger jetliner for shorter routes.As a result, Boeing developed the 737 model which was considered to be a very technological advanced jetliner. Meanwhile, Boeing expanded its involvement in the defense market through the 1960 acquisi tion of Philadelphia-based Vertol Aircraft Corporation, a maker of military helicopters. During the Vietnam War, Boeing Chinook and Sea Knight helicopters were heavily utilized by American forces. The 1960’s also saw Boeing active in the NASA contracting sector. As the Cold War continued, Boeing was selected to develop the Minuteman intercontinental ballistic missile system.In addition, Boeing was heavily involved in NASA’s Apollo project of the 1960’s, beginning with its production of several Lunar Orbiters as well as the Lunar Roving Vehicle, which was used to explore the moon in the early 1970’s. During the 1970’s, Boeing tried to diversity its business by entering the metro-rail business, manufacturing mass transit systems for Boston, San Francisco, and Morgantown, West Virginia. The systems were modern, computerized, and efficient but prone to frequent breakdowns. After fulfilling its obligation to rectify the systems (at great cost), Boeing d ecided to discontinue its ground transport business.As the dominant aircraft manufacture for over three decades, Boeing began to experience a decline in its earnings and stock price during the middle of 1980’s even though it remained profitable. Unfortunately, Boeing jets were involved in four fatal air accidents from December 1988 to March 1989, and the company missed its first delivery deadline in two decades when the 747-400 experienced production delays. These internal problems were exacerbated by increased competition from Airbus, which was heavily subsidized by a consortium of European companies and governments.Furthermore, worldwide orders of all aircraft by the airliners declined from 1,662 in 1989 to 439 in 1991. Fortunately, in 1993 NASA selected Boeing as the prime contractor for the International Space Station, which was called the largest international science and technology endeavor ever undertaken. Boeing was also becoming increasingly involved in commercial sp ace projects and in December 1995 ten commercial space satellites were produced and launched from a floating platform at sea.In the middle of 1990’s, Boeing began its plan of acquisitions and in 1996 it paid $3. 2 billion for the aerospace and defense holdings of Rockwell International which was responsible for the Space shuttle and International Space Station programs, as well as activities in launch systems, rocket engines, missiles, satellites and military airplanes. Furthermore, in 1997 Boeing completed a $14 billion acquisition of McDonnell Douglas which was the world’s number three maker of commercial aircraft.The acquisition increased Boeing’s share of the world market for large commercial jetliners to more than 60 percent and left it with just one major competitor in that sector, the European Airbus which held about one third of the world market. Unfortunately, 1997 turned disastrous for Boeing for reasons wholly unrelated to its acquisition spree. Attem pting to take advantage of the upswing in airplane orders, which was in part caused by the aging of the airliners’ fleets, Boeing committed to doubling its production over an 18 month period.The eagerness of Boeing to increase its revenue lead to production delays, including the wholesale shutdown of some production units and reducing its workforce from 238,000 at year end 1997 to between 185,000 and 195,000 by the end of 2000. If the delays and reduction of workforce weren’t bad enough for Boeing enterprise, the contract awarded to Boeing by the Air force to undertake the Evolved Expandable Launch Vehicle program (EELV) was canceled due to allegations of cheating to win the Air force contract. Today Boeing is undertaking a major project, Boeing 787 Dreamliner which will provide a super-efficient airplane apable of flying long ranges with less fuel. However, Walter James McNerney, the CEO of Boeing Corporation, will have to deal with many issues such as competition, va lue chain and ethics in order to dominate the aircraft industry in next future. Analysis Competitive Rivalry between Existing Players: The commercial aircraft business is very important for Boeing because it covers more than 65% of its total revenue. In this market, losing market share can cause big impact on the performance of Boeing and its future development.The competition from Airbus is considered extreme and on the scale between 1 and 10, it can be ranked as 9. The level of competition between the two aircraft manufactures is very clear as it is shown in Figure 1. Figure 1. Graph of market share (%), gross orders between Airbus and Boeing from 1994 to 2006. The level of rivalry between Airbus and Boeing shown in Fig. 1 depicts Boeing as the market share leader from 1994 to 1998. However, Airbus took the market share from Boeing in 2001 and kept its position as the market share leader until 2004.Even though the number of orders was more superior with Airbus in 2004, the total r evenues of Boeing was still much higher than that of Airbus. While the revenue of Airbus in 2004 was $40 billion, Boeing had the revenue of $55 billion. This is due to the fact that Boeing gained profit from other activities such as military aerospace, defense, and space business. The competition from Airbus industry is getting more and more threatening to Boeing in the commercial aircraft market. Boeing has been the market leader since 1980’s.Nevertheless, Airbus has gained ground and expanded its market share very successfully by making great efforts in doing market research and development of new products. While Airbus spent 5. 9 percent of its total revenue on research and development in 1999, Boeing only spent 2. 3 percent. Therefore, it means that Airbus is now a big threat to Boeing and may take over its market leader position soon if Boeing doesn’t take any serious action to protect itself. Threat of New Entrance: It is not easy for new companies to enter the m arket of manufacturing large ommercial aircraft. The high cost of developing airplanes is a major factor in prohibiting new entrants to the market with costs as high as US$5. 5 billion to develop the Boeing 777 in the 1990’s. Furthermore, aircraft manufactures must sell between 400 and 500 aircraft at a rate of 50 sales per year in order to regain their investment after developing a new product. This means that companies which enter the market must be prepared to wait for around 10 years before showing any profit even though there is no guarantee that they will become profitable.For that reason, the threat of new entries is considered very low on the scale of 1 to 10, it is ranked as 1. Nevertheless, Boeing now has been faced the threat of new entrance by China. The Chinese government has officially approved the launch of China Commercial Aircrafts, which will manufacture large passenger airplanes. The plan is to have jets designed and built in China by 2020. Asian Airlines a re expected to buy nearly 10,000 new planes by 2025, with more than 2,200 of those going to Chinese airlines.Since Boeing and Airbus have been outsourcing most of the technical and engineering jobs to China, barriers of technology requirement to enter the industry can be overcome by the Chinese. As a matter of fact, a consortium of Chinese companies known as China Aviation Industries Corporation produces components for Boeing’s 747 and 787 wide bodies and operates a final assembly line for the Airbus A320. For that reason, China is now in advantageous position to build passenger aircraft due to its tremendous wealth, technological strength and a huge home market.Therefore, once China starts manufacturing aircrafts, it could also become a significant player in the world of passenger plane market and take part of the market share away from Boeing and Airbus. Nevertheless, the Chinese ambition to enter the aircraft industry is not a short run threat to Boeing because it may take at least 15 years to China begin to develop its airplanes. Despite its goal of eventually challenging Boeing, the Chinese will have to produce large jets which are able to meet only a small part of domestic demand while Boeing will continue to claim a big chunk of the Chinese market.Value Chain Analysis: For the past several years, Boeing has been grappling with problems in launching its latest major passenger airplane, the Boeing 787 Dreamliner at a cost of $178 million each. Airlines around the world preordered over 900 787 airplanes before they ever took a test flight based on its projected fuel efficiency, passenger comfort, low maintenance costs, flexibility, and other major design elements. However, the first test flights for the plane were delayed, largely because of supply chain issues.Boeing subcontracted out the design and assembly of major components of the 787 to firms in Japan, Italy, China, and India but did not impose adequate coordination across these various suppli ers. For that reason, subassemblies did not fit together properly, there were numerous quality and delivery issues, and countless other problems occurred. The biggest problem was that Boeing didn’t realize that integrating the supply chain and choosing the correct suppliers was much more difficult than it could have anticipated for.In this case, Boeing outsourced the assembly of parts of the airplane to countries such as China and India where labor is cheaper so that it could reduce cost of operation. Unfortunately, outsourcing to foreign countries to save money can cause backlash from the media, current customers, as well as possible future customers. As a matter of fact, one risk Boeing is taking by outsourcing its supply chain is giving away technology to third parties such as foreign aerospace companies. For example, Chinese suppliers may use the knowledge acquired from their work to begin creating a company of their own.If this occurs, it would be a huge threat to Boeing as well as Airbus since they have plans to capitalize on the flourishing Asia-Pacific markets. Ethics at Boeing Over the years, Boeing is focused on a flood of scandals that have tarnished the company’s image. In July 2003, the Pentagon stripped Boeing of one million dollars in rocket launch business for possessing proprietary documents stolen from a competitor, Lockheed Martin. As a matter of fact, Boeing was suspended from doing business with the federal government for twenty months. In another incident, the department of defense reported that Boeing overcharged the U.S. army by $13 million for parts opposed to a fair sale price of $10 million. Due to a lack of ethics, Boeing may lose credibility with its suppliers and customers who may think twice before signing a contract with Boeing. Moreover, Boeing lack of ethics is unfair to other companies as well as tax payers. Another ethic issue involving Boeing is that it has sacrificed American jobs for foreign government subsi dies. In recent years, Boeing has sought subsidies from foreign governments and it has pushed its manufacturing overseas in order to obtain such subsidies.For the 787 aircraft, Boeing reportedly secured a subsidy of almost $600 million dollars from the Italian government towards the manufacture of the rear fuselage of the airplane by the Italian firm, Alenia. Moreover, Boeing also reportedly obtained approximately $1. 5 billion in subsidies from the Japanese government for the same aircraft. In order to secure this Japanese subsidy, Boeing outsourced the manufactured of the wings and fuselage of the aircraft to the Japanese companies Fuji, Kawasaki and Mitsubishi.Sadly, Boeing outsourced the sort of technology that had benefited from years of American taxpayer-funded research and development spending. As a matter of fact, Boeing lack of ethics can leave many hard working Americans without jobs. Conclusion The dominance of aircraft manufacturing business by Boeing is impressive, but Airbus and threat of new entrants could take part of the market share away from Boeing. For that reason, Boeing should spend more money in research and development so it could improve its airplanes with new technological advances.In this market, technology is crucial because it can help differentiate one company from another; and therefore, the most advanced technological firm is more able to keep and gain more customers than its competitors. Even though technological advances are important factor that help distinguish one company from another, Boeing shouldn’t neglect the fact that supply chain is also very crucial to a company success. When Boeing outsourced its supply chain to China and India, it caused a delay on Boeing 787 Dreamliner production.If a company wants to be the market leader, it shouldn’t outsource supply chain because it is sometimes difficult to contact with suppliers and verify quality of products being used to assemble the aircrafts, for example. I n addition, Boeing shouldn’t outsource supply chain because it takes a risk of giving away technology to third parties such as foreign aerospace companies in China and India. If Boeing wants to keep its dominance of aircraft manufacturing business, it should be more ethical when doing business.The lack of ethics by Boeing can cause a great harm to the image of the company; and worst of all, Boeing could lose credibility with its suppliers and customers who may think twice before signing a contract with it. The bottom line is that Boeing should have more consideration with its competitors as well as tax payers when doing business. Answers and Questions: 1) Discuss the nature of the market structure and demand for the Dreamliner. What are the applications of this for Boeing and customers?A) The nature of the market structure for the Dreamliner is oligopolistic which means that the market or industry is dominated by a small number of sellers in this case aircraft manufactures. T he oligopolistic market is comprised of a handful of competitors sheltered by significant barrier to entry. This means that firms are heavily restricted from entering or leaving the industry. For that reason, Boeing has the chance to take the market share away from Airbus since it has only one competitor and manufactures mid-size aircrafts capable of flying long ranges with high fuel efficiency.Since the demand for Dreamliners is not used for personal or direct consumption but rather for its use in providing other goods and services, the demand for the Dreamliner is known as derived demand. The Airlines that purchase Boeing aircrafts want to comply with customer demand for more comfortable and luxury airplanes. Passengers will experience during their flights and great deal of comfort with higher cabin pressure and humidity which reduces common flying symptoms like headaches, dry mouth and fatigue.At the same time, midsized wide-body airplanes will provide to airlines with unmatched fuel efficiency, resulting in exceptional environment performance while cutting costs with fuel consumption. If airlines are able to cut cost with fuel, consumers will be directly benefited with cheaper air fares. 2) What examples of the major types of buying situations of you see in this case? Discuss the implications of each in terms of marketing strategy. A) The major types of buying situations are: straight rebuy, modified rebuy and new-task buying.In straight rebuy the buyer routinely reorders something without any modifications. The marketing strategy used in straight rebuy is based on getting high quality and low cost products, superior service, and prompt delivery from a partner seller. In fact, the buyer can save time with tedious paper work requirement since they have already ordered previously with the seller. In modified rebuy involves a business buying situation in which the buyer wants to modify product specifications, prices, terms, or suppliers.The market strategy of modified rebuy allows buyers to look at alternative offerings within their established purchasing guidelines. In fact, they might take this step if their current supplier has let a rebuy situation deteriorate because of poor service or delivery performance. In new-task buying involves a business buying situation in which the buyer purchases a product or services for the first time. The strategy of new-task buying in marketing is to acquire goods or services by carefully considering alternatives offerings.In fact, it is very important to a company entering a new field to search out potential suppliers, and evaluating proposals. 3) List the specific features of the Dreamliner. What customer benefits result from each? A) The Boeing 787 Dreamliner incorporates structural composite materials in the airframe instead of predominantly aluminum which offer customers a guaranteed reduction in maintenance costs. Moreover, the use of structural composites enhances fuel economy as well as trave l range of the 787 Dreamliner.This means that airlines will be able to save money with fuel so that consumers will pay less for air fares. Due to the use of composite technology, the Boeing 787 has a higher cabin pressure which helps customers have a better flight experience and reduce common flying symptoms such as headaches and fatigue. The cabin design incorporates increased legroom, and added rooms such as lounges which can benefit customers with a comfortable flying experience. In addition, the 787 Dreamliner also contains 19-inch electrochromic dimmable windows, which adds passenger comfort.At last, the Dreamliner is environmental friendly because it is a low emission airplane. In this case, customers will benefit from an airplane which emits less carbon dioxide which can help keep the air cleaner. 4) Discuss the customer buying process for a Boeing airplane. In what major ways does this process differ from the buying process a passenger might go through in choosing an airplan e? A) The process of buying an aircraft can be a complicated process due to the fact that a 787 Dreamliner can cost over 100 million dollars.In order to buy an airplane, buyers must take in consideration costs and benefits which come with the purchase of the airplane such as long-term operating and maintenance costs. Moreover, customers will have to wait for years in order to receive their planes since the aircraft manufacturer may take years to produce them. The purchase of an airline ticket by a consumer may be classified in a few different ways. Customers traveling the same route regularly do not require them to spend a great deal of time or mental effort in arriving at the purchase decision.On the other hand, leisure customers who travel occasionally, the purchase process would require considerably more time and effort. However, the decision of consumers to buy an airplane ticket has not as many factors to consider as in the case of an airline purchasing a 787 Dreamliner. In add ition, the outcomes are more numerous and the stakes are much higher. 5) What marketing recommendations would you make to McNerney as he continues to try to resolve the problems with the 787 Dreamliner program?A) The first problem that McNerney has to resolve with 787 Dreamliner program is improve ethics of the firm. If Boeing doesn’t have a good work and business ethic customer relationship can be compromised. As a matter of fact, Boeing could lose credibility with its suppliers and customers who may think twice before signing a contract with it. At last, McNerney should keep the supply chain in America because it is easier to contact with suppliers and verify the quality of products being used to assemble the 787 Dreamliner.