We report on optical imaging of the X-ray binary SAX J1808.4−3658 with the 8-m Gemini South Telescope. The binary, containing an accretion-powered millisecond pulsar, appears to have a large periodic modulation in its quiescent optical emission. In order to clarify the origin of this modulation, we obtained three time-resolved r-band light curves (LCs) of the source in five days. The LCs can be...

BACKGROUND Intravenous glucose infusion into ambulatory dogs results in attenuation of exercise-induced increase of both rectal and thigh muscle temperatures. HYPOTHESIS That glucose (Glu) infusion attenuates excessive increase in body temperature from restricted activity during confinement deconditioning. METHODS Rectal (Tre) and quadriceps femoris muscle (Tmu) temperatures, metabolic rate...

The microsomal flavoprotein NADPH-cytochrome P450 oxidoreductase (CYPOR) is believed to function as the primary, if not sole, electron donor for the microsomal cytochrome P450 mixed-function oxidase system. Development of the mammalian embryo is dependent upon temporally and spatially regulated expression of signaling factors, many of which are synthesized and/or degraded via the cytochromes P4...

Three commercially available microclimate cooling systems were evaluated for their ability to reduce heat stress in men exercising in a hot environment while wearing high insulative, low permeability clothing. Five male volunteers performed three 180-min experiments (three repeats of 10 min rest, 50 min walking at 440 watts) in an environment of 38 degrees C dry bulb (Tdb), 12 degrees C dew poi...

This study aimed to estimate the combining ability, of T. cacao genotypes preselected for drought tolerance through diallel crosses. The experiment was conducted under greenhouse conditions at the Cacao Research Center (CEPEC), Ilhéus, Bahia, Brazil, in a completely randomized block design, in an experimental arrangement 21 x 2 [21 complete diallel crosses and two water regimes (control and str...

The complex interaction between a microbial pathogen and a host is the underlying basis of infectious disease. By understanding the molecular details of this interaction, we can identify virulence-associated microbial genes and hostdefense strategies and characterize the cues to which they respond and mechanisms by which they are regulated. This information will guide the design of a new genera...

We present the first systematic investigation of Tc(iv) solubility, hydrolysis and speciation in dilute to concentrated NaCl, MgCl2 and CaCl2 systems, and comprehensive thermodynamic and activity models for the system Tc(4+)-H(+)-Na(+)-Mg(2+)-Ca(2+)-OH(-)-Cl(-)-H2O using both SIT and Pitzer approaches. The results are advancing the fundamental scientific understanding of Tc(iv) solution chemist...

high-affinity chitin binding region [4]. Five homologs of the plant chitinases have been identified in A. fumiga-tus. Only one member of this family has a putative GPI anchor and associated cleavage site (http://www.tigr. org/tdb/e2k1/afu1/), suggesting that this enzyme may Inhibition of glycosylhydrolases by peptides mimick-function in morphogenesis since most of the GPI an-ing carbohydrates o...

1 Overview We employed diierent processing techniques for the ad hoc and routing tasks, although both explored the combination of exact and fuzzy predictors. For the routing task, we used a neural net classiier to estimate the probability of relevance of a new document to a given topic description. We experimented with a variety of document representations, nally settling on a hybrid feature se...