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Articles 1 - 8 of 8
Full-Text Articles in Medicine and Health Sciences
Optimal Photon Energies For Iudr K-Edge Radiosensitization With Filtered X-Ray And Radioisotope Sources, S. Karnas, E. Yu, R. Mcgarry, J. Battista
Optimal Photon Energies For Iudr K-Edge Radiosensitization With Filtered X-Ray And Radioisotope Sources, S. Karnas, E. Yu, R. Mcgarry, J. Battista
Edward Yu
The purpose of this work is to determine the most physically effective radiation energy for K-edge absorption of x- or gamma-rays by iododeoxyuridine (IUdR) on Chinese hamster ovary (CHO) cells. Brachytherapy sources (Sm-145, I-125, Yb-169 and Am-241) and x-ray beams (30 kVp, 100 kVp and 100 kVp with gold, gadolinium, lead or tungsten filtration) were investigated for their preferential absorption qualities by IUdR sensitized DNA. The 30 kVp, 100 kVp and 100 kVp with tungsten filtration were then used to irradiate CHO cells, with or without IUdR incorporation (i.e. 10(-5) M of IUdR for 3 days). Radiation absorption calculations were …
Phd Thesis (Doctorat De Spécialité): Université De Ouagadougou, 1999. Dr. Mamoudou H. Dicko. Purification Et Propriétés Physico-Chimiques Des Enzymes De Curculigo Pilosa, Gladiolus Klattianus Et Boscia Senegalensis Catalysant L'Hydrolyse Des Polysaccharides (Amidon Et Béta-Glucanes), Mamoudou H. Dicko Prof.
Pr. Mamoudou H. DICKO, PhD
The objective of this study was the research of novel and inexpensive sources of polysaccharides degrading enzymes such as amylases and glucanases from local plants in order to justify their biotechnological applications. The isolation of two l3-amylases and an endo-1,3-ß-D-glucanase was reached using common protein purification methods such as buffer extraction, ammonium sulfate fractionation, ionexchange and gel filtration chromatographies. The methods used were simple and easily reproducible, suggesting the possibilfty of large-scale production. ln the crude extract of Curculigo pilosa tuber, only ß-amylase was detected as starch degrading enzyme and its activity was approximately 282 Uig of fresh material. The …
Survival Versus Years Of Healthy Life; Which Is More Powerful As A Study Outcome?, Paula Diehr
Survival Versus Years Of Healthy Life; Which Is More Powerful As A Study Outcome?, Paula Diehr
Paula Diehr
Studies of interventions that are intended to improve patients' health are often evaluated with survival as the primary outcome, even when a measure adjusted for quality of survival, such as years of healthy life (YHL), would seem more appropriate. The purpose of this article is to determine whether studies based on survival are more or less powerful than studies based on YHL in clinical trials where either measure might be appropriate. We used data from the Cardiovascular Health Study (CHS) to estimate the sample size that would be needed in studies of 156 different health conditions, for the two outcome …
Methods For Analyzing Health Care Utilization And Costs, Paula Diehr
Methods For Analyzing Health Care Utilization And Costs, Paula Diehr
Paula Diehr
Important questions about health care are often addressed by studying health care utilization. Utilization data have several characteristics that make them a challenge to analyze. In this paper we discuss sources of information, the statistical properties of utilization data, common analytic methods including the two-part model, and some newly available statistical methods including the generalized linear model. We also address issues of study design and new methods for dealing with censored data. Examples are presented.
The Relationship Between Reactivity Of Metabolites Of Pyrrolizidine Alkaloids And Extrahepatic Toxicity, R. A. Cooper, R. J. Huxtable
The Relationship Between Reactivity Of Metabolites Of Pyrrolizidine Alkaloids And Extrahepatic Toxicity, R. A. Cooper, R. J. Huxtable
Roland A. Cooper
Factors Affecting The Circumcision Decision, Jeffrey D. Tiemstra Md
Factors Affecting The Circumcision Decision, Jeffrey D. Tiemstra Md
Jeffrey Tiemstra, MD, FAAFP
Ampa Receptors In Epilepsy And As Targets For Antiepileptic Drugs, Michael A. Rogawski, Sean D. Donevan
Ampa Receptors In Epilepsy And As Targets For Antiepileptic Drugs, Michael A. Rogawski, Sean D. Donevan
Michael A. Rogawski
No abstract provided.
Lateral Hypothalamic Nmda Receptor Subunits Nr2a And/Or Nr2b Mediate Eating: Immunochemical/Behavioral Evidence, Arshad Khan, Margarita C. Curras, Jennifer Dao, Faizi A. Jamal, Rishi K. Goel, Elizabeth R. Gillard, Stefany D. Wolfsohn, B. Glenn Stanley
Lateral Hypothalamic Nmda Receptor Subunits Nr2a And/Or Nr2b Mediate Eating: Immunochemical/Behavioral Evidence, Arshad Khan, Margarita C. Curras, Jennifer Dao, Faizi A. Jamal, Rishi K. Goel, Elizabeth R. Gillard, Stefany D. Wolfsohn, B. Glenn Stanley
Arshad M. Khan, Ph.D.
No abstract provided.