The phosphorus-proton nuclear Overhauser effect (NOE) was used to investigate the quantitative distribution of rotamers about the C3'-03' bond (&') of 3'-AMP and 2',3'-cyclic-CMP and the C4'-C5', C5' 05' bonds (41, 0) of 5'AMP. Phosphorus-proton and proton-proton NOE's were used to provide a qualitative insight into the backbone conformation and the glycosyl angle torsions of adenosylyl-(3' 5')...

1. A simple phosphate infusion technique was employed to produce a linear elevation of plasma phosphorus levels with time. Using this technique theoretical renal phosphorus threshold (TRPT) was determined from sixty-seven infusions performed in fifty subjects in order to evaluate this measure of the renal excretion of phosphorus. 2. Glomerular filtration rate (GFR) was determined from phosphate...

introduction: soil fertility management is a key factor in achieving sustainable agriculture. use of organic fertilizers is one of the methods that without environmental harmful effects with improvement of chemical and biological conditions increases soil fertility. nitroxin contains a collection of the best strains of nitrogen fixation bacteria of the genus azospirillum and azotobacter. these ...

Nitrogen and Phosphorus fertilizers are required to enhance the plant growth yield. The appropriate nitrogen phosphorus doses on yield of dragon fruit (Hylocereus polyrhizus) not well known. A study evaluate effect was arranged in a completely randomized block design with two factors three replications. treatments consisted four (0, 50, 75 100 g-1pillar) g-1pillar). Growth were significantly (p...

A six wk feeding experiment was conducted with d-old four hundred broiler chicks (Ven Cobb) to determine the effects of microbial phytase (Allzyme) supplementation in soybean meal based broiler diet containing low phosphorous. These birds were randomly divided into four dietary treatment groups of 100 broilers each. Each treatment group was further sub-divided into five replicates of 25 broiler...

in order to examine the effects of biological and chemical fertilizers with the use of salicylic acid on the agronomic characteristics of corn as a factorial experiment in randomized complete block design with three replications at the agricultural research station in 2011 was boroujerd. factors examined included three levels of phosphorus fertilizer (0, 100 and 150 kg ha), two levels of biolog...

abstract in low-input cropping systems, the natural roles of microorganisms in maintaining soil fertility may be more important than conventional system. in order to investigate the effects of plant growth promoting fungi on improvement of growth and development in soybean (cv: jk) an experiment was conducted at the research farm of sari agricultural sciences and natural resources university du...

The distribution of phosphorus compounds in various leaf components has been examined in some detail, particularly for tobacco, where interest has centered in part on the study of nucleic acids, especially in relation to virus infection (2-7). The method adopted for determining phosphorus distribution in the present study was based on the procedure of Ogur and Rosen (8), and on the results of o...

the parameters used to determine the trophic state of a water body are: total phosphorus (tp),transparency (secchi disk depth) and chlorophyll a. however, these parameters show strong seasonalfluctuations which may hinder the estimation of trophic state. some authors have proposed that sediments be used as an additional tool to evaluate the trophic state of a water body. the aim of this study w...