The benefits of mechanical improvements in cardiopulmonary bypass Thesis Proposal

The benefits of mechanical improvements in cardiopulmonary bypass - Thesis Proposal Example This allows the cardiac operation to take be performed in a less chaotic and stationary environment thus reducing chances of error. During the procedure, the blood is gravity drained to a reservoir, it is then oxygenated and returned to the arterial system via a pump. One of the main concerns for physicians is the damage that is sustained by the blood and blood cells during friction as it is being propelled from the pump. The commonly used rolled pumps utilize a basic mechanism with tubing lined along a raceway with rollers massaging the tubing to propel the blood forward. This style of pump requires the clinician to keep the occlusion balanced at a level that ensures adequate forward blood flow with minimal damage the fragile blood cells inside the tubing. Roller pumps have been found to cause shear stress in blood that can lead to haemolysis, realease of vasoactive substances and spallation which is a breakdown in the tubing wall. Hemolysis and the corresponding increase in plasma free hemoglobin are severely detrimental to the patient outcome and prolong the patients’ recovery following cardiac surgery utilizing cardiopulmonary bypass. However, there has been some decrease in the occurrence of these risks by the utilization of centrifugal pumps that were specifically developed to eliminate intermittent tubing occlusion. Research has been done to provide evidence that the damage to red blood cells, platelets, and plasma proteins is minimized with the use of centrifugal pumps as compared to the common roller pumps.

Social network and project management Essay Example | Topics and Well Written Essays - 250 words

Social network and project management - Essay Example Working on team projects of this type is a new experience for most of the students and the maturity of their thinking skills has advanced in important ways. Social Networking Systems (SNS), such as Facebook, are wildly popular in today’s world. This popularity and the availability of many interaction features in SNS suggest that they could offer new and powerful possibilities for technology-enhanced education. The study done specifically examined the potential for a social media platform called Ning, in providing helpful mechanisms for student teams to employ for communicating, collaborating and cooperating while undergoing major itinerary project and it all came out positive and so beneficial. The members involved in this kind of project teams can vary widely in terms of dimensions such as age, gender and cultural background even though highly diverse teams face special problems such as leadership structure, mutual respect, motivation and open discussion in conducting their project management activities. Social media brings knowledge democratization, and falling application costs bring a proliferation of application and content. This results in fragmentation that drives corporations and not-for profits seek out leadership to make use of their intangible assets and reuse their knowledge and expertise to evolve and remain competitive. The following are some of the discovered roles knowledge professionals are most likely to play in this rapidly evolving environment: Managing initiatives focusing on content and collaboration, supporting innovation and change, Identifying new methods to streamline processes and procedures throughout the organization. New academic programmers incorporating social media while focusing on project management and leadership, specifically as they relate to enterprise-wide information and knowledge, are