Journal Coursework Example | Topics and Well Written Essays - 500 words

Journal - Coursework Example Revolutionizing the communication industry has completely changed the way that humans across the world interact with each other. We have developed from the point where paper messages would have to be carried, sometimes taking weeks to reach the recipient, to being able to communicate halfway across the world instantly. This has given humanity a huge advantage. It allows for globalization of the economy, collaboration for scientific and other research as well as strategic movements of large military forces or just the simple hello to a relative that lives far away (Parker, 2005). The implementation of technology has had a great impact on society as a whole. Human behavior has been influenced by communications technology. Society has developed based on efficiency and a fast paced environment due to the fact that information is now readily available via networks, internet, etc. As a result, our generation lives in one where everything is expected quickly. Compared to about thirty years ago, the efficiency of industry and business has increased as well as learning in institutions due to the implementation of better and faster computers and internet (FitzGerald, & Dennis, 2009).

Physiology and metabolism, cardiovascular system, MacMan computer Essay

Physiology and metabolism, cardiovascular system, MacMan computer simuklation - Essay Example Physiological homeostasis in the cardiovascular system is maintained depending on baroreceptor and chemoreceptor reflexes. Baroreceptor reflexes respond to changes in blood pressure and chemoreceptor reflexes respond to changes in pH, which are usually caused by an increase or decrease in blood CO2 (Scanlon & Sanders, 2011). Question 1: What happens to the blood pressure and heart rate? The systolic blood pressure is increased to 132.8 mmHg and the diastolic pressure is increased to 82.2 mmHg. The heart rate is decreased to 51.8/min (table 1). When arterial resistance is increased, the vessels experience vasoconstriction, which leads to an increase in blood pressure and a decrease in heart rate. Changing the heart rate resulted into a change in the time of the systole and that of the cardiac relaxation. The alteration in the blood pressure and cardiac output displayed a plateau, but increased by a small margin. At low heart rates, the existence of pericardial constraints causes a limitation in the viscous pressure (Her, Mandy, & Bairamian, 2005). A decrease in the heart rate led to the redistribution of the thoracic compartment from the extracic hence causing a reduction in the blood pressure. Question 2: What might give rise to the altered arterial resistance in a natural situation? The result of altered arterial resistance is increased high blood pressure (hypertension). Systolic pressure ranging between 125 and 139 mmHg and diastolic pressure that range between 60 and 80 mmHg are often considered prehypertension. This can be caused by stress, smoking, and high level of salt consumption (Her, Mandy, & Bairamian, 2005).