Dormant bacterial spores are able to survive long periods of time without nutrients, withstand harsh environmental conditions, and germinate into metabolically active bacteria when conditions are favorable. Numerous factors influence this hardiness, including the spore structure and the presence of compounds to protect DNA from damage. It is known that the water content of the spore core plays ...

Excess power production and other anomalous effects have been observed during the electrolysis of heavy water using palladium and palladium-boron alloys as the cathode materials. This study focused on hydrogen and deuterium loading into palladium and palladium-boron alloys. Improved calorimetry provided for the detection of the exothermic heat of absorption of deuterium into palladium and palla...

Recent investigations of meteorites thought to originate from the asteroid 4 Vesta have suggested an early accretion water on rocky bodies in inner Solar System a carbonaceous chondrite-like source. However, these studies been based hydrogen isotope compositions (δD) late-crystallizing apatite grains eucrites that likely do not record primary magmatic composition. We determined δD and H2O conce...

Using deuterium oxide dilution technique, the total body water changes of five infants maintained on total parenteral nutrition have been determined. While average weight gains of from 14 to 53 g/day were documented, there were decreases in percentage total body water from 13 to 50%. These data taken together support tissue accretion rather than water retention as the mechanism of weight gain i...

Deuterium- and tritium-labeled pharmaceutical compounds are pivotal diagnostic tools in drug discovery research, providing vital information about the biological fate of drugs and drug metabolites. Herein we demonstrate that a photoredox-mediated hydrogen atom transfer protocol can efficiently and selectively install deuterium (D) and tritium (T) at α-amino sp3 carbon-hydrogen bonds in a single...

In the course of studies on the ageing process in the human erythrocyte, we have investigated the metabolic behavior of the cholesterol of the erythrocyte. This study was designed to determine whether the cholesterol of the human erythrocyte is in the dynamic state (2), or whether the cholesterol is incorporated into the newly formed erythrocyte and remains with the cell throughout the cell's l...

Using a volumetric technique, the deuterium solubility, X, in heavy water (L), low-pressure hexagonal ice (I h), and high-pressure cubic clathrate ice (sII) is studied at deuterium pressures up to 1.8 kbar and temperatures from -40 to +5 degrees C. The triple point of the L + I(h) + sII equilibrium is located at P = 1.07(3) kbar and T = -4.5(8) degrees C. The molar ratios D2/D2O of phases at th...

Plant roots may be linked by shared or common mycorrhizal networks (CMNs) that constitute pathways for the transfer of resources among plants. The potential for water transfer by such networks was examined by manipulating CMNs independently of plant roots in order to isolate the role(s) of ectomycorrhizal (EM) and arbuscular mycorrhizal fungal (AMF) networks in the plant water balance during dr...