The n-localization property is preserved under the countable support iteration of suitably definable forcings. This solves a question of Ros lanowski and greatly simplifies the proofs in the area.

The existence of a linearized SUSY invariant for N = 8 supergravity whose gravitational components are usually called R was established long ago by on-shell superspace arguments. Superspace and string theory methods have also established analogous higher dimensional DR invariants. However, very little is known about the SUSY completions of these operators which involve other fields of the theor...

P. Arrizabalaga, MD, Servicio de Nefrología, Hospital Clínico, c/Casanova, 143, E-Barcelona 36 (Spain) Dear Sir, Human HLA-DR antigens are expressed on cytoplas-mic membrane of cells associated with immunological activity [1]. Moreover, the HLA-DR expression can be induced on other cells which are normally negative for HLA-DR molecules. Thus, the thyroid follicular cells bear these antigens whe...

Blast cells from patients with acute myeloblastic leukemia were exposed to 5-azacytidine (5-aza) and its analogues 5-aza 2'-deoxycytidine (5-aza-dr) and 6-azacytidine (6-aza). Simple negative exponential survival curves were obtained for the three drugs, but the sensitivity varied; 5-aza-dr was most toxic, 6-aza was least toxic, and 5-aza was intermediate. Colonies surviving drug exposure were ...

Dietary restriction (DR) improves health, delays tissue aging, and elongates survival in flies and worms. However, studies on laboratory mice and nonhuman primates revealed ambiguous effects of DR on lifespan despite improvements in health parameters. In this study, we analyzed consequences of adult-onset DR (24 h to 1 yr) on hematopoietic stem cell (HSC) function. DR ameliorated HSC aging phen...

Escherichia coli that express Dr fimbriae and related adhesins recognize the common receptor decay accelerating factor. E. coli strains that express adhesins of the Dr family were postulated to be associated with cystitis (30-50%), pregnancy-associated pyelonephritis (30%), and chronic diarrhea (50%). In this study, we investigated the hypothesis that E. coli renal interstitial binding mediated...

This paper examines the history of Homo erectus and Homo sapiens in the Austral-Asian region bisected by the PEP II (Pole– Equator–Pole) transect, from Siberian Russia, south through Asia, insular Southeast Asia, Australasia and Oceania. Current evidence is reviewed for the timing of the arrival of humans along PEP II, their subsequent expansion through the region and their concurrent developme...

Objective. To investigate the risk factors of DR in Chinese T2DM patients. Methods. 2009 patients with T2DM were included in this cross-sectional study. All patients underwent eye examination, and the DR stage was defined by an ophthalmologist. Correlation analysis was performed to evaluate the relation between DR and clinical variables. Logistic regression models were used to assess risk for t...

Dr. David Mermin's review of Alan Sokal's "Beyond the hoax" (Science wars revisited, N. David Mermin, Nature 454, 276-277, 17 July 2008) makes some good points, but the overall thrust is unnecessarily and unfairly negative. Anyone who has not read Dr. Sokal's book may come away with the impression that he has spent the whole book rehashing stale debates and attacking articulate and scientifical...