required use. Polymer-Polyethylene is partially crystalline as well as amorphous because it has crystalline and amorphous regions. Also it has linear chains so this is the simplest structure compared to a branched or network chain. This can be of an advantage to it over other types of materials as its good toughness and elongation makes it very significant in the engineering industry as it can be moulded or extruded into shapes such as pipes which are made of HDPE. Polyethylene is a thermoplastic so
Manufacturing Cycle and Environmental Impact The most common form of polyethylene is petroleum based or olefins based; as before mentioned polyethylene compounds have a wide commercial applicability and are made from non-renewable resources (Harding, Dennis, von Blottnitz, Harrison, & S.T.L., 2007). Its manufacturing processes are regarded as energy intensive and release significant amount of CO2 and heat into the atmosphere (Broderick, 2008). Next a little more detailed description of polyethylene’s
endogenous (from the liver) carried in very low density lipoprotein. Hypertriglyceridemia is a risk factor for cardiovascular disease and for pancreatitis. More importantly Hypertriglyceridemia is usually accompanied with other lipid abnormalities and metabolic syndrome which is connected to coronary artery disease. Classification Primary Causes of Hypertriglyceridemia Familial hypertriglyceridemia is a condition defined by an isolated very low density lipoprotein, which is not as rich in triglyceride
When people think of a healthy lifestyle, they tend to think of people that live in the gym everyday and are probably vegan or vegetarian. Being healthy isn’t about living in gym every day for hours on end; it actually is the exact opposite. Having a healthy lifestyle isn’t a hard thing to do. Eating healthy is probably the hardest of them all though. Who doesn’t love a nice greasy cheeseburger, loaded down with some mayonnaise and all the fixings? Unfortunately, eating like that and doing little
overall in excess are not good for a patient’s body because they are known to clog a person’s arteries which lead to many other diseases and conditions that are much worse, including a heart attack. Lipoproteins like the LDL (low density lipoproteins) and the HDL (high density lipoproteins) are the fat like complexes in the blood. Hyperlipidemia can be further separated into two subcategories including hypercholesterolemia, which means a high level of cholesterol in the blood, hypertriglyceridemia
INTRODUCTION Background of the Study Hypercholesterolemia, which is a specific type of hyperlipidemia and characterized by excessively high plasma cholesterol level, is a strong risk contributor for many cardiovascular diseases, particularly atherosclerosis (Stapleton et al., 2010). The by-products of cholesterol cause the stiffening of the arteries by forming a thick tough deposit on their inner walls, leading to the starvation of the heart with blood by making the flow of blood stop entirely (Thomas
clinical definition however, as outlined by the University of Maryland Medical Center [UMMC] (2010), considers a total cholesterol level of 240 mg/dL or higher to be high cholesterol. Within this total is the level of high-density lipoproteins (HDL or “good” cholesterol) and low-density lipoproteins (LDL or “bad” cholesterol). Below 40 mg/dL is considered poor for HDL, while an optimal level of 60 mg/dL or above is more desirable. A LDL level of 160-189 mg/dL is considered high, and the optimal level
are made of proteins and lipids. There are two kinds of lipoproteins which carry cholesterol throughout our bodies; they are low-density lipoproteins (LDL) and high-density lipoproteins (HDL). High density lipoprotein is known as good cholesterol. HDL takes the bad cholesterol out of blood by transporting it to the liver and keep it from building up in arteries. Low-density cholesterol is known as bad cholesterol because it can cause arteries to narrow or become blocked. That makes the flow of blood
Atherosclerosis is the culprit behind coronary heart disease (CHD) and stroke, which is the most common cause of death worldwide and in the United States10. Among the modifiable risk factors of CHD and stroke is the serum low density lipoprotein level (LDL)8, 11. Several randomized clinical trials have established that reducing the serum LDL level results in a reduction in the future risk of CHD and stroke in a linear relationship, in one study it was estimated that reducing the LDL by 1 % would
inherited high cholesterol [3]. The LDLR gene contains instructions for making LDL receptors or low-density lipoprotein receptors. LDL receptors play critical roles in regulating levels of cholesterol in the blood by removing low-density lipoproteins from the bloodstream. Mutations in the LDLR gene can make the amount of LDL receptors produced less than normal or affect their job of removing the low-density lipoproteins in the blood [4]. People who have these mutations will have higher levels of cholesterol
blood attached to a protein. This combination of cholesterol and protein is called lipoprotein. 1. Low density lipoprotein - This can cause a buildup of plaque on the walls of arteries.The more LDL in the blood, greater the risk of heart disease. 2. High density lipoprotein - This helps the body to get rid of bad cholesterol in the blood. Higher the level of HDL cholesterol, the better. 3. Very low density lipoprotein - VLDL contains more fat and less protein.It is similar to LDL. Causes of High
health care costs that are related to elevated cholesterol levels annually (CDC, 2011). Elevated cholesterol levels are associated with limited access to health care; therefore looking into areas of lifestyle changes for health care benefits that are low cost and effective would be valuable (CDC, 2011). Description of Search: The process used in searching for articles started in CINA... ... middle of paper ... ...the study the participants had to be female and obtain permission from a doctor to
German Chemist Hans von Pechmann first synthesized Polyethylene by accident in 1898 by heating diazomethane. His colleagues characterized the waxy substance polyethylene due to the fact that they recognized that it consisted of long ethene chains. It was then first industrially synthesized by accident in 1933 by applying extremely high pressure to ethylene and benzaldehyde. Over the years, development of polyethylene has increased due to the additions of catalyst. This makes ethylene polymerization
Polyethylene Polyethylene (PE) is one of the most commonly used polymers which can be identified into two plastic identification codes: 2 for high-density polyethylene (HDPE) and 4 for low density polyethylene (LDPE). Polyethylene is sometimes called polyethene or polythene and is produced by an addition polymerisation reaction. The chemical formula for polyethylene is –(CH2-CH2)n– for both HDPE and LDPE. The formation of the polyethylene chain is created with the monomer ethylene (CH2=CH2). The
Recycling means collecting and sorting waste for the purpose of producing new products. In Malaysia, the recycling program was officially introduced on December 2, 2000 and the Ministry of Housing and Local Government (ministry) has determined that the 11 November of each year as National Recycling Day. Recycling process involves a variety of solid waste including plastic. Plastics is the solid waste that cannot be decomposed, so the recycling process of this material can help reduce the quantities
Studies have found that BPA can have adverse health effects at levels thousands of times lower than what the EPA considers safe. According to the low dose hypothesis, small and repeated exposures to bisphenol A can have an amplified effect on the human body by mimicking human sex hormones, or promoting cell proliferation. Bisphenol A has been found to cause estrogenic changes in animal cells at the
4.1.6. Different Forms of Chicory a) Hand Cut Chicory Roots: The farmer harvests the chicory roots and cuts it manually sun dries in the field for about 20-25 days. Hand Cut Chicory Roots are mostly preferred in domestic market. As these are manually cut, the size and shape of these roots are non-uniform. These are used in preparing roasted chicory powders and chicory granules. Packaging is done in Jute bags of 50 kg. Moisture: 14-16% Age of Product: < 1 Year Extractability: Min 70-74 % Taste:
NATURAL DNA POLYMERS Polymers are some of the core factors that enable the continuation of life, which is both the natural and the synthetic ones. Over time since the beginning of life, natural polymers were the main supports to living things. Eventually, in line with human development, synthetic polymers has become a valuable addition to the available and usable polymers. Natural Polymers are the RNA and DNA vital in genes for life processes. As a matter of fact, the messenger RNA is the main component
Recycling is process and step in collecting and sorting waste for the purpose of producing new products. In Malaysia, the recycling program was officially introduced on December 2, 2000 and the Ministry of Housing and Local Government (ministry) has determined that on 11 November of each year as a National Recycling Day for Malaysia. Recycling process has involves a variety of solid waste including plastic. Plastics is the solid waste that cannot be decomposed, so, through the recycling process of
polyalkene has a waxy texture. This type of compound for the most part utilized in the field of research and production in the petrochemical and organic chemistry industries. The production of polyolefin was started in the research laboratories. Polyethylene was the first created polyolefin in 1933 at Imperial Chemical Company by E.W. Fawcett and R.O. Gibson. The production of polyolefin is expected to achieve 100 million of metric