Non-collagenous, soluble proteins and collagen have been extracted quantitatively from freshly dissected chicken bone at 4 ûC in presence of protease inhibitors, and their content in organic phosphorus assayed. We found that non-collagenous proteins were not covalently bound to collagen in chicken bone, as in some calcified tissues. They represented 30 p. 100 of the organic matrix and bound 75 ...

A strategy for the functionalization of single-walled carbon nanotubes is reported. The synthesis involved the conversion of fluorinated single-walled carbon nanotubes to the thiolated derivative assisted by phosphorous pentasulfide. The thiol group is then quantitatively oxidized to the sulfonic acid group. The extent of oxidation of the thiol precursor is confirmed using X-ray photoelectron s...

The use of constructed wetlands for purifying pre-treated wastewater is a cost effective technology that has been found to be more appropriate for many developing countries. The technology is also environmentally friendly with the wetlands being habitats for many water birds and other aquatic organisms. This study assessed nutrient removal efficiency of two floating macrophytes (Lemna minor...

Improving the efficiency of P use by pigs is especially important for lactating sows, whose metabolic requirements for P and Ca are high. The effect of a sp. phytase on lactating sow performance and nutrient digestibility was investigated using the combined data set for 6 studies. Treatments included a nutritionally adequate positive control diet (PC), a negative control diet (NC; with an avera...

Urine is a widely available renewable source of nitrogen and phosphorous. The in urine present the form urea, which rapidly hydrolyzed to ammonia carbonic acid by urease enzymes occurring nature. In order efficiently recover inhibition must be done, usually increasing pH value above 11. This method, however, based on external chemical dosing, limiting sustainability process. this work, simultan...

in temperate forests canopy gaps play an important role in driving stand dynamics. the purpose of this research was to compare soil characteristics in forest gaps with several size and its relation to beech regeneration density in lalis forest, chalous. in order to investigate factors, three gap sizes as small gap (200 m2), medium gap (400 m2), and large gap (600 m2) with three replicate were s...

PhanePhos-analogous phosphorous ligands have been generated via self-assembly through hydrogen-bonding, and studied in rhodium-catalyzed asymmetric hydrogenation (up to 99% ee).

A comprehensive study of the toxicity lanthanides (LN) in relation to media composition will enhance prediction their potential adverse effects for living organisms. Here we examined effect different on V. faba root elongation and cytotoxic (mitotic index) genotoxic (micronucleated cell number) from tests with Ce, Gd Lu (100, 800 6400 μg L−1). Three exposure were selected: standard Hoagland (SH...

Anaerobic digestion provides renewable energy through waste valorisation, but the digestate by-product is underutilised and presents a risk to water quality. Mechanical separation partitions phosphorous into solid fraction further processing fuel pellet can provide an additional source of revenue. Previous economic analyses looked only at aspects system (e.g. operational costs solely) requires ...