Essays on Janeway

The role of the state in the economy: A historical perspective

The role of the state in the economy has been a subject of discussion for many decades with different views emanating from a broad range of the individuals and institutions in the field of economics. Since the early 1900s, various economists have continued to investigate the various roles of the state in economic development. The investigation led to the distinction of the roles in two broad categories, namely; normative and positive roles. Normative roles refer to what exactly the state should do to maximize the welfare of the people. On the other hand, the positive roles outline what the ...

Immunology

The rearrangement of T cell receptor (TCR) genes g and d occur in series of cells expressing variable Vg and Vd gene segments. The lymphoid precursor cells originate in the bone marrow and move to the thymus. Preliminary T cells are devoid of TCR, CD4 and CD8 molecules and are called double negative thymocytes . These double negative T cells may be further categorized into four phases of differentiation (DN1, CD44+CD25-; DN2, CD44+CD25+; DN3, CD44-CD25+; and DN4, CD44-CD25-) . CD44 is a cell adhesion molecule and CD25 serves as the IL-2 receptor. Passage into the DN2 and DN4 stages ...

Campaign Against Obesity

Obesity as a Contemporary Societal Issue According to World Health Organization (2014), around 2.8 million people die every year due to obesity. Obesity is a condition characterized by a weight that is more than the healthy range. This condition leads to many negative health conditions, such as coronary heart disease, diabetes, high blood pressure, stoke, certain types of cancer, mental illnesses, and others. Currently, it is estimated that there are around 78 million obese U.S. adults (“Adult Obesity,” 2015). What makes the issue worst is the fact that adults are not the only ones who are at risk of ...