by Kasey G. Creswell, Michael A. Sayette, Stephen B. Manuck, Robert E. Ferrell, Shirley Y. Hill, John D. Dimoff

by Asma Iqbal, Yvonne A. L. Lim, Johari Surin, Benedict L. H. Sim
Background Currently, there is a lack of vital information in the genetic makeup of Cryptosporidium especially in developing countries. The present study aimed at determining the genotypes and subgenotypes of Cryptosporidium in hospitalized Malaysian human immunodeficiency virus (HIV) positive patients.

Obstacles in an organism's path can help it to move faster, not slower, researchers have found through a series of experiments and computer simulations. Their findings have implications for a better understanding of basic locomotion strategies found in biology, and the survival and propagation of the parasite that causes malaria.

Plants leaves are sealed with a gas-tight wax layer to prevent water loss. Plants breathe through microscopic pores called stomata on the surfaces of leaves. As the key conduits for carbon dioxide uptake and water evaporation, stomata are critical for both our climate and plant productivity. Thus, not surprisingly, the total number and distribution of stomata are strictly regulated by plants to optimize photosynthesis while minimizing water loss. But the mechanisms for such regulation have remained elusive until now.

(Society of Interventional Radiology) Y-90: Are You Ready? -- an intensive course examining radiation biology, dosimetry, radiation safety, embolotherapy and clinical office management in the use of yttrium-90 in the treatment of cancer -- is being offered by the Society of Interventional Radiology Feb. 9-12 in Scottsdale, Ariz. The course is designed to provide focused educational opportunities for interventional radiologists, and SIR encourages fellows-in-training to attend. Limited spaces are still available.