Pancreatic cancer Research Paper Example | Topics and Well Written Essays - 1500 words

Pancreatic cancer - Research Paper Example Pancreatic cancer is known to be a lethal cancer which accounts for the fourth most renowned cancer which causes death in the United States of America. It starts with lesions in the epitheliums and may later on go to become invasive enough to cause death. This research essay would further revolve around the epidemiology, etiology and pathogenesis of the pancreatic cancer. Pancreas is a complex gland having both exocrine and endocrine functions. The organ has a very important role to play in the digestion of substances in the body but as the pancreas has a retroperitoneal location it does not show the progression of diseases in the initial stages. Thus it is very hard to detect diseases of pancreas in the initial stages. The exocrine part of the gland secretes digestive enzymes which help in digesting food particles whereas the endocrine portion secretes only a limited number of enzymes such as insulin and glucagon. The major abnormalities caused by the non-functioning of the endocrine portion of the pancreas are diabetes mellitus and neoplasms. And the major diseases caused by the exocrine portion are related to the inflammation of the pancreas itself (Catalano et al 2009). With latest researches being carried out much has become known about many cancers but the exact cause of pancreatic cancer is yet to be found. Most of the individuals suffering from pancreatic cancer are adults who are above 60 (Gold & Goldin 1998). Many factors have been studied in relation to the pancreatic cancer and it has been found that smoking is one of the foremost external influence which can trigger the cancer (Gold & Goldin 1998). Similarly inflammation of pancreas is also known to be an important factor that may cause the cancer (Lowenfels et al 1997). However some individuals do argue that it is because of the pancreatic cancer that the inflammation of pancreas occurs. As all cancers are related to genetics, pancreatic cancer is also known to be associated with the relative

Proposal Writing Assignment Essay Example | Topics and Well Written Essays - 500 words

Proposal Writing Assignment - Essay Example These kinds of schedules tends to eliminate the gauging exercise intensity guesswork, improves the quantitative tracking with regards to the fitness levels, helps in defining an individual’s weaknesses, acts as an effort monitor, as well as a proper perspective for aerodynamic position testing. Many cyclists often produce equal power output from both legs. The Info Crank tends to measures independently even small variations between the left and the right leg. A host of the remedial measures often exist to with the ultimate role of correcting the asymmetrical power inputs that requires adequate measurements. Info Crank will thus act as an accurate power meter with regards to cycling. Accuracy can hence be taken as an unlimited value that is accurate to almost 5 Watts. The relative measurements, as well as the cycling power readings should have greater reference on the context of  ±2% regarding the systems utmost reading capability (Krolop & Pfeffer et.al, 368). The level of accuracy also sets basis on the measurement of cadence, as well as the A-D converters rates of sampling. There is hence little or no variation between the amounts of watts deliberated on a single Info Crank’s set. If the Info Crank is switched between bikes, the measured watts are often equal. Power is basically a phenomenon that has to do with the aspect of force and velocity. The mathematical expression can be taken as: power (W) = force x distance / time. Watts on the other hand refers to energy that is needed to move a given mass to a particular distance within an identified period of time. In short, is taken to be 1W = 1Nm/s. So in a bike speak, the overall mass will be taken as the sum of that of the cyclist plus that of the bike, while the distance should be taken as the covered ground distance. There is some difficulty when it comes to the measurement of power due to the resistance brought out as a result of inconsistent motion. This is thus the key