Dissection and graded assignment Example | Topics and Well Written Essays - 500 words - 2

Dissection and graded - Assignment Example One of the control measures that I would take is sterilization of instruments used on the sick people. Despite the fact that operating on infected people is a tedious process, it is well known as the best manner through which a person or professional can control the spread of an infectious disease (Association of Faculties of Medicine in Canada, 2014). Given that the professional does not acquire the disease, means that they do not get to transmit the disease with the patient to other people. Another control measure to take is quarantine. Quarantine is the method used to control the spread of a disease only in its initial stages because at the time it will have only infected few people. A few infections are possible to control and thus the use of this means exponentially (New Jersey Department of Health and Senior Services, 2008). While people are under quarantine, it is possible for professions to test them while wearing gasmasks that will allow them to carry out their activities without catching the disease. From the tests, there is the hope of getting the causative agent and control the spread early. After reading the article, the infectious agent that caused the disease is Shigella Sonnei. This facultative anaerobic bacterium lacks the ability to move due to the lack of flagella (Niyogi, 2010). The incubation period of this bacterium is normally around 3 to 4 days. The investigator identifies several causes of the infection and it is clear to state that the main factors that he states are the most common (Bloestein, 1991). However, in the study, there are some areas not mentioned that ought to receive attention. One of the causes is the poor usage of public facilities and failure to maintain clean practices (Department of Health, 2014). Another cause of the bacterium is the high number of people using water bodies poorly and then later on using the same

Review Essay Example | Topics and Well Written Essays - 500 words - 11

Review - Essay Example These theories are concerned with the bombardment of the Earth by â€Å"icy clumps of material† (30), or planetismals. This collision results in the formation of steam in the atmosphere. After some steam being ejected into the sky, and some being split by ultraviolet radiation, sufficient steam remains in the atmosphere to condense and form the oceans when the Earth cools. The origin of these planetismals is subject to different viewpoints. They are variously argued to be asteroids, comets and meteorites. Plate tectonics is responsible for the creation and present configuration of the ocean basins, which serve as containers to hold water. This process agitates the Earth’s mantle, separating it into the lighter granitic rock which floats on top to form the continents, and the heavier basalt which sinks to form the ocean basins. The Earth’s orbit is another important factor for the presence of water. To one side of the Earth, Venus is so close to the sun, that water evaporates skyward, and is split by the sun’s ultraviolet rays into hydrogen which is lost into the sky. On the other side, Mars is too far from the sun and remains frozen due to runaway glaciation. Unlike its neighbors, the Earth’s orbit lies in the ‘habitable zone’, with regard to its distance from the sun, thus permitting the presence of liquid water. The Earth’s stratified atmosphere, due to the significant presence of carbon-dioxide and methane, which absorb infrared radiation, results in the greenhouse effect, keeping the planet warm even during the age of the early, faint sun. This prevents the loss of water and hydrogen into the sky. Volcanism is the last factor which contributes to the presence of water on Earth, due to the carbonate-silicate cycle. Volcanism gives the Earth a â€Å"built-in (geochemical) thermostat† (33), which regulates the Earth’s climate and maintains the surface temperature in a range