Biochemistry science field Research Paper Example | Topics and Well Written Essays - 2500 words

Biochemistry science field - Research Paper Example Therefore, it may be hypothesized that the use of cartilage in the promotion of endochondral regeneration of bones may leverage normal development and repair sequences resulting in a properly vascularized regenerate capable of integrating with the host tissues. Various tests have demonstrated that cartilage grafts are able to support the regeneration of vascularized and integrated bone tissues in vivo, while lineage tracing experiments have revealed graft derived regenerates. Mesenchymal stem cells are actually the pluripotent cells existing in numerous adult human tissues, for example bone marrow and adipose as well as synovial tissues, and since they originate from the mesoderm, they differentiate to become bones and cartilage as well as muscles and adipose tissues (Nolta, 2006). Mesenchymal stem cells from embryonic sources have demonstrated probabilities in science while at the same time creating a considerable amount of controversy. As a consequence, numerous researchers have put emphasis on adult stem cells or those isolated from human adults that may be transplanted in to tissues that are damaged. As a result of their multi-potent capability, mesenchymal stem cell lineages have been employed with success in animal models in the regeneration of articular cartilage and in human models in the regeneration of bones. Research done recently has shown that articular cartilage can be repaired through percutaneous introduction of mesenchymal stem cells. Th is paper aims at explaining how bone and cartilage can be differentiated from stem cells as well as considering the current research and development of this discipline. An experiment that sought to investigate conditions that can stimulate stem cells to differentiate into fat of bone cells while being encapsulated by hydrogels was conducted with polymer networks, which could simulate various conditions where the stem cells grow naturally. The first step in growing the new cartilage involved initiating

Case analysis Essay Example | Topics and Well Written Essays - 750 words - 6

Case analysis - Essay Example The management needs to change this policy, and initiate a rotational policy, where employees would manage to work at different sections of the produce department. Another area that the management should change is favoritism. An example of favoritism occurs Denise, a new employee manages to get two dollar an hour, as opposed to other experienced workers such as Dan. This is because Denise is only three months old into the job, and she is earning more than other workers, despite carrying out the same job. This is a de-motivating factor that needs to be handled and corrected. Dan is also an authoritarian leader, who does not follow rules, and he finds pleasure in harassing his employees (Robbins & Judge, 2010). For instance, he does not allow his employee a 45 minute lunch break as required by the company. Instead, he requires his employees to have a 30 minute break, which is not sufficient. Furthermore, he abuses Alex, regarding his mental ability, which is very bad for a supervisor to do. This aspect has to be changed, because it is a de-motivator, and it manages to destroy the confidence of his employees and workforce. This would in turn make these employees not to be productive. One of the theories of motivation that applies to this case, is Maslow’s hierarchy of needs theory. According to this theoretical framework, the needs of an individual are classified into five categories, with higher needs being self-actualization, and self-esteem (Hoffmann, 2007). Self actualization and self-esteem lack in this produce department.All these lack at the produce department, under the leadership of Dan. This is because people cannot advance in their careers, because they are given the same job year for a longer period of time. Furthermore, the job is not challenging, because the same job daily is boring and frustrating. This is the reason Alex was considering leaving the organization. Self-esteem also lacks at this department, because the