While it is generally acknowledged that increased use of formative assessment (or assessment for learning) leads to higher quality learning, it is often claimed that the pressure in schools to improve the results achieved by students in externally‐set...
Objectives. This study tests the effects of volunteering on the well-being of older adults, including the effect of level of engagement, the moderating effects of demographic and social factors, and the effects of the nature of the volunteer experience....
Anne Raben, Vasilaras Th, A Christina Møller, Arne Astrup
In a study of the ownership of German corporations, we find a strong relation between board turnover and corporate performance, little association of concentrations of ownership with managerial disciplining, and only limited evidence that pyramid structures...
Stanley Rosen, Dorothy J. Solinger
Font-Rodriguez De, Giles R. Scuderi
RGS proteins are GTPase activators for heterotrimeric G proteins. We report here the 2.8 A resolution crystal structure of the RGS protein RGS4 complexed with G iα1 –Mg 2+ –GDP–AlF 4 − . Only the core domain of RGS4 is visible in the crystal....
A. van't Spijker, Hugo J. Duivenvoorden
A central role for defective mitochondrial energy production, and the resulting increased levels of free radicals, in the pathogenesis of various neurodegenerative diseases is gaining increasing acceptance. Defects in energy metabolism may contribute...
Richard Noss, Celia Hoyles
James R. Hebert, Lori Pbert, Ira S. Ockene, Judith K. Ockene
Paul Roben, J P Moore, M Thali, Joseph Sodroski, Carlos F. Barbas, D R Burton
W. Armstrong, R. Brändle, Michael B. Jackson
M.G. Persson, Lars E. Gustafsson, O. Zetterström, V. Agrenius, Elisabeth Ihre
Catherine M. Daily, Dan R. Dalton
J The present study identifies the specific human cytochrome P-450 (CYP) enzymes involved in hydroxylation leading to activation of the anticancer drug cyclophosphamide and its isomeric analogue, ifospha- mide. Substantial interindividual variation (4-9-fold)...
Starch Crystal Transformations and Their Industrial Importance
Jay W. Heinecke, Henry Rosen, Alan Chait
Richard E. Nisbett, Eugene Borgida
Frederic C. Bartter, P. Pronove, John R. Gill, Ross C. MacCardle