Both atmospheric deposition and benthic remineralisation influence the marine nitrogen cycle, and hence ultimately also marine primary production. The biological and biogeochemical relations in the eastern tropical South Pacific (ETSP) among nitrogen deposition, benthic denitrification and phosphorus regeneration are analysed in a prognostic box model of the oxygen, nitrogen and phosphorus cycl...

1 Foraging by geese has led to vegetation loss in salt marshes along the Hudson Bay coast and lesser snow geese are increasingly grazing inland freshwater marshes. We determined whether different nutrients limit the growth of forage plants in the two habitats, and whether these differences affect the nutritional quality of vegetation available to geese at La Pérouse Bay, Manitoba. 2 Results fro...

In chronic kidney disease, hyperphosphatemia has been associated to vascular calcifications. Moreover, the rate and progression of vascular calcification have been related with the reduction of bone mass and osteoporotic fractures, hereby suggesting a strong link between vascular calcification and bone loss. Our aim was to prospectively study the effects of high phosphorus diet on bone mass, va...

Spores of Bacillus laterosporus were studied to determine the chemical and morphological nature of their basophilic canoe-shaped parasporal bodies. An unusually high phosphorus content of these spores compared to other Bacillus species appeared to be associated with the parasporal body. Preparations of these "canoes" still attached to the spore coats were indeed high in phosphorus, but also in ...

Inorganic phosphorus is scarce in the eastern Mediterranean Sea, where the high-light-adapted ecotype HLI of the marine picocyanobacterium Prochlorococcus marinus thrives. Physiological and regulatory control of phosphorus acquisition and partitioning has been observed in HLI both in culture and in the field; however, the optimization of phosphorus metabolism and associated gains for its phosph...

The aerobic metabolism of homogenates of normal and ischeinic left ventricle was compared in dogs at various time intervals (15 min. to 24 hours) after high ligation of the circumflex branch of the left coronary artery. Glucose and fruetose-l,6-diphosphate were used as substrates. The injured tissue was taken from the posterior papillary muscle (PP) and the non-ischemic tissue from the anterior...

Rabbits and guinea pigs upon certain diets develop an extreme degeneration of the skeletal muscles (15, 22). The onset of these muscle lesions may be delayed or prevented by the inclusion of vegetable oils in the diet (21, 26, 31) or by vitamin E concentrates (23). In dystrophic muscle the creatine content is lower than normal and roughly proportional to the amount of pathological degeneration ...

The Loess Plateau is one of the most seriously eroded areas in the world. This study determined the effects on runoff, soil loss, and phosphorus loss of six land use systems in hillslope of the Loess Plateau: farmland, wasteland and four forest treatments (Seabuckthorn + poplar, immature seabuckthorn, mature seabuckthorn, and immature Chinese pine). Differences were significant (P<0.05) for run...

Phosphine, which has now been confirmed around the carbon-rich star IRC+10216, provides the first example of a phosphorus-containing single bond in interstellar or circumstellar media. While four compounds containing both phosphorus and carbon have been discovered, none contain a carbon–phosphorus single bond. Here, we show that this moiety is plausible from the reaction of phosphine with metha...

Phosphorus is an attractive negative electrode material for sodium ion batteries due to its high theoretical specific capacity of 2596 mA h g . However, it suffers poor conductivity (10 12 S m ), slow reaction dynamics, and large volume expansion ( 440%) during the sodiation process, leading to rapid capacity decay upon cycling. Great attention has been devoted to improving the electrical condu...