Your assignment is to prepare and submit a paper on helicobacter pylori. Spiral shape and the presence of flagella. Helicobacter pylori spiral shape is well adapted to the movement inside the vicious gastric mucus layer that allows the microorganism to completely colonize the mucosa. Furthermore, the presence of coated flagella allows bacteria to move fast in the gastric juice as well as in the mucus (Marshall).

Adaptation enzymes. Helicobacter pylori produce two main adaptation enzymes – urease and catalase. The urease is contained in gastric juice and catalyzes urea into carbon dioxide (CO2) and ammonium ion (NH4+), which further neutralizes the pH of the immediate environment of the microbe and protects Helicobacter pylori against bactericidal action of gastric acid. Thus, the microorganism preserved in gastric juice penetrates into the protective layer of mucus on the surface of the gastric epithelium.

The secretion of catalase and possibly superoxide dismutase allows Helicobacter pylori to suppress the immune response of the host (Kalali et al.). These enzymes catalyze the transformation of compounds of bactericidal oxygen (which are released by activated neutrophils) into harmless substances such as oxygen and water.

Adhesivity. The ability of&nbsp.Helicobacter pylori&nbsp.to attach specific oligosaccharide components of glycoproteins and phospholipids in the membranes of gastric epithelial cells determines its selective colonization of mucus-secreting cells. In those places where the bacterial cell membranes are adjacent to each other, the disruption of microvilli and the rupture of components of the cytoskeleton are observed (Kelly). Other possible binding receptors can be extracellular matrix components, such as laminin, fibronectin and various types of collagen. It is believed that only a very small amount of the microorganisms (less than 10%) existing in the stomach is bound at any particular time.&nbsp.

Need help with my writing homework on Briggs & Stratton quantum engine-Interim. Write a 3750 word paper answering; Exhaust emissions and the performance of engines have been experimentally researched over for neat gasoline or the n-brutanol blends in a number of ways of working speed (2600-3400 r/min) without any modification or turning on the gasoline engine systems. Among the abilities of the experiment is to evaluate performance and also characteristics of emissions, for instance, break power, volumetric efficiency, in-cylinder pressure, exhaust gas temperatures, and CO2, CO, and UHC concentrations. (Science direct: Dunn-Rankin, 2008).&nbsp.

The beginning of 1908 marked the establishment of the great company, Briggs & Stratton when the founders Briggs and Stratton laid the base for the future since they had an unrelenting vision of innumerable possibilities (Stern & Shiely, 2004: 315). The great effort put the company into the success path of engine-powered bicycles, fuses, auto igniters, locks, coined-operated paper towel dispensing machine, electric refrigerators among other machines. The US-based company has gained mileage as it is dynamic in its operations and embraces the call for change and advancement in doing business.

Briggs & Stratton Corporation, have its headquarter in Milwaukee, Wisconsin. It is the biggest producer of gasoline engines for open-air power equipment (Christians & Ritchie, 2002: 95). The company’s wholly-owned subsidiaries include the biggest marketer of portable generators and also pressure washers in North America, being the leading marketer, designer, and manufacturer of turf care, lawn, and garden equipment. Briggs & Stratton products are serviced, marketed, designed, and manufactured in more than 100 countries on six continents (Stern & Shiely, 2004: 298).

The infusion of temperately priced premium engines of a Japanese origin, between 1980 and 1995, and successful cost-cutting efforts of its&nbsp.local competitors represented a significant challenge to the leadership position of the company. Again, the retail market, during this time, for the outdoor power equipment started to concentrate on the control of a few influential mass retailers who advocated for greater product diversity and lower prices. John Shiely and Fred Stratton Jr., in the late 1980s, led an effort to respond to this challenge by restructuring the company to product-focused divisions.&nbsp.