Trypanosoma brucei is a protozoan flagellate responsible for several severe diseases in various mammals, including the nagana disease in cattle and human sleeping sickness. This parasite is transmitted by the tsetse fly, where it develops in the midgut as the so called procyclic form which proliferates rapidly. Once the trypanosomes have reached the fly salivary glands they transform into quies...

Background. This study explores underresearched sociocultural predictors of children’s physical activity Levels of physical activity among children are highly and fitness, with particular attention paid to the influvariable, and few consistent correlates have been idenence of ethnicity independent from potential contified. The lack of identification of predictors of childfounders such as social...

We report in situ density values of amorphous ice obtained between 0.3 and 1.9 GPa and 144 to 183 K. Starting from high-density amorphous ice made by pressure-amorphizing hexagonal ice at 77 K, samples were heated at a constant pressure until crystallization to high-pressure ices occurred. Densities of amorphous ice were calculated from those of high-pressure ice mixtures and the volume change ...

The question of sex difference has long divided feminists, social scientists, policymakers, and legal academics. Most recently, the issue has resurfaced as prominent legal scholars have relied on evolutionary arguments to suggest that men and women might be different in ways that are relevant to sex discrimination law in general and to sexual harassment law in particular. At the same time, the ...

Nearly eight years ago, Science magazine published an opinion piece by a German government minister, proclaiming that " technical and scientific innovations provide excellent prospects for environmental protection. " To master the challenge of sustainable development, the minister wrote, " decision-makers require interdisciplinary approaches and strategies that cut across political lines. " Now...

Several workers have provided evidence that deacetylation occurs both in vivo and in vitro. Abbott (1942) found that, when N-acetylglycine and sodium benzoate were administered orally to rabbits, the increase in hippuric acid excretion was only slightly less than when the corresponding amount of glycine was given with the benzoate. Elson, Goulden & Warren (1946) found that the rat deacetylated ...

This second Theme Issue of ‘The virtual physiological human: computer simulation for integrative biomedicine’ continues to explore in detail the potential of the virtual physiological human (VPH) approach (Fenner et al. 2008). The initial editorial communication on the VPH training challenges (Lawford et al. 2010) illustrates some of the tasks and solutions for an integrated (across Europe) app...

Threshold contrasts were measured psychophysically for a sinusoidal grating targetcentered 12’in the peripheral retina. The relationship between contrast sensitivity, the reciprocal ofthe threshold contrast, and the spatial frequency of the gratings can be adequately described by thedifference of two Gaussian functions. The parameters of the fitted Gaussians are used to describe...

To my family iv ACKNOWLEDGEMENTS I would like to express my deepest gratitude to my advisor, Dr. Farrokh Ayazi. He has been a great advisor, a strong motivator, and a great inspiration to my work. I feel very fortunate to have had him as my M.S. and Ph.D. advisor, to have had the opportunity to work with him, and to have had his helpful advice for the past five years. He has been always availab...

INTRODUCTION Both occupational and environmental exposures to lead remain a serious problem in many developing and industrializing countries. When humans are exposed to high levels of lead, there is damage to almost all organs and organ systems (most importantly, the central nervous system, kidneys, and blood), which often culminates in death. OBJECTIVE To estimate the prevalence of blood lea...