Abstract The alteration of a four-oxide alumino-borosilicate glass close to International Simple Glass (ISG) was studied in Si saturation conditions at pH 3, 7, and 9 using solution post mortem solid analyses. In particular, the study examined impact structural disorder on generated by swift heavy ion irradiation. It is shown that pre-irradiated altered three four times more than non-irradiated...

MOTIVATION Array comparative genomic hybridization (aCGH) provides a genome-wide technique to screen for copy number alteration. The existing segmentation approaches for analyzing aCGH data are based on modeling data as a series of discrete segments with unknown boundaries and unknown heights. Although the biological process of copy number alteration is discrete, in reality a variety of biologi...

Cytochrome P450 2B1 clones were isolated from a phenobarbital-induced Wistar-Kyoto (WKY) hepatic cDNA library and were found to contain a Glu-322 --> Val substitution, compared with wild-type 2B1 from Sprague-Dawley rats. After heterologous expression in Escherichia coli and purification, activities of this 2B1 E322V variant were determined for ethoxycoumarin and androstenedione. The total acti...

Carcinogenesis and cancer progression are often modeled using population dynamics equations for a diverse somatic cell population undergoing mutations or other alterations that alter the fitness of a cell and its progeny. Usually it is then assumed, paralleling standard mathematical approaches to evolution, that such alterations are slow compared to selection, i.e., compared to subpopulation fr...

Introduction: Clay minerals are the most common alteration products of water-rock-gas interactions on Earth. Because these hydrous alteration minerals are thermodynamically stable over a wide range of P-T-x conditions [1], significant amounts of clay may have also formed in Martian environments where liquid water or water vapor was present. It has been speculated that liquid water or vapor may ...

Abstract The large variations in hydrogen isotope ratios found insoluble organic matter (IOM) chondritic meteorites may be attributed to isotopic exchange between IOM and water during aqueous alteration. We conducted D–H experiments (1) synthesis of simulant (hereafter called analog, COA) from formaldehyde, glycolaldehyde, ammonia with water, (2) the synthesized COA a secondary reservoir water....

Stress response is characterised by biochemical, physiological and behavioural changes in the body. Changes in serum lipids have been reported during examination stress (2, 3, 4). Though emotional stress is known to affect the metabolic rate through alteration in homeostasis (5), yet examination stress has not been implicated as one of the factors influencing metabolic rate which inturn is gove...

Alteration in thyroid state influenced the rate of metabolism of adrenocortical hormone by rats liver tissue in vitro, with proportional change in adrenal weight(Yates, 1958). These experiments suggest that the thyroid function would determine the rate of ACTH secretion in unstressed animals. The present study was undertaken to explore the possibility of difference in pituitary-adrenocortical s...