This 10 page paper offers an overview of solar energy beginning with the theory underlying solar power and the two major types of solar energy. The technology of solar power cells is explained, beginning with the two major categories of solar energy. The most common materials and elements used to produce photovoltaic cells, how these cells work and their output are then reported. Four of the most common types of collectors are explained. Innovations in the production of solar cells are reported. Comments are made regarding the costs and the savings gained from using solar power. Bibliography lists 14 sources.

A 22 page paper that provides a comprehensive overview of fuel cell technology. Discussion includes: an introduction to fuel cells, what they are, how they work and the types of fuel cells in research; applications for fuel cell technology, including those that are already in use; fuel cell-powered motor vehicles and what the progress is in this industry, including manufacturers who have already introduced fuel cell-powered cars and the forecasts for the near future; issues concerning hydrogen; problems and disadvantages with fuel cells and a conclusion. Bibliography lists 6 sources.

This 3 page paper summarizes an article by Colon and Raff (2003) entitled “Differences in the way a mammalian cell and yeast cells coordinate cell growth and cell-cycle progression” which looks at the role of cell check points and the importance of extracellular signalling for mammalian cells when researched with the use of Schwamm cells. The bibliography cites 1 source.

A 2 page paper discussing the stem cell aspect of chemotherapy. Stem cells are the progenitor cells of all types of blood cells, including the white blood cells that combat infection and invasion, and red blood cells that supply nourishment to all the tissues of the body. They primarily reside in the bone marrow, but some also can be found circulating in the blood. Cancer chemotherapy depresses bone marrow activity so that fewer blood cells are produced. Stem cell therapy involves harvesting bone marrow prior to chemotherapy treatment, then reintroducing it following treatment so that blood cell production can occur at optimum rates. Bibliography lists 2 sources.

This 7 page paper begins with an explanation of what a stem cell is and why it is so valuable. The writer reports some of the diseases stem cells can cure and/or prevent and discusses the progress in stem cell research. This is followed by a discussion of the ethical dilemma with this type of research and concludes with the need for the U.S. to remain competitive. Bibliography lists 8 sources.