Los tipos de trasplante de órganos habituales son cuatro: alogénico, isogénico, autólogo y xenogénico. Las principales complicaciones del trasplante son las infecciones y el rechazo. La prevención del rechazo a través del empleo de medicamentos inmunosupresores continua siendo el mayor…

This thesis examines the role nineteenth-century women's literary journals, specifically Ladies' Journal (1823--1833), played in the development of Russian literature. The longest-lived and most-circulated of the pre-Soviet women's literary journals, Ladies' Journal was well-positioned to have contributed to the on-going…

The purpose of this research was to gain an understanding of how music education students come to think of themselves as music educators. Guided by the thematic framework, "learning from experience", which draws upon research relating to constructivist theory and…

Procedures for the selection of subjects for participation in randomized clinical trials--usually formalized as eligibility criteria in the study protocol--have both scientific and ethical implications. In this thesis, I undertake an examination of eligibility criteria at three stages in the…

This paper reports the results of surveys of specialists in labor economics and public
economics at 40 leading research universities in the United States. Respondents provided
opinions of policy proposals; quantitative best estimates and 95% confidence intervals for
economic parameters;…

This paper analyzes data on 11,600 students and their teachers who were randomly assigned to
different size classes from kindergarten through third grade. Statistical methods are used to
adjust for non-random attrition and transitions between classes. The main conclusions are:…

This paper examines the effect of technological change and other factors on the relative demand
for workers with different education levels and on the recent growth of U.S. educational wage
differentials. A simple supply-demand framework is used to interpret changes…

This paper analyzes the labor supply behavior of food and beverage vendors at a
single major league baseball stadium over an entire season. In contrast to the conven-
tional labor supply model, the vendors who I study are paid a…

I examine the extent to which workers who lose jobs find work in alterna-
tive employment arrangements such as temporary work, part-time work, and independent
contracting rather than as conventional full-time “regular” employees. The analysis is
based on data from…

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