نتایج جستجو برای: phosphorus requirement

تعداد نتایج: 208375  

2016
Jie Liu Shunhong Zhang Yaguang Guo Qian Wang

The intriguing properties of phosphorene motivate scientists to further explore the structures and properties of phosphorus materials. Here, we report a new allotrope named K4 phosphorus composed of three-coordinated phosphorus atoms in non-layered structure which is not only dynamically and mechanically stable, but also possesses thermal stability comparable to that of the orthorhombic black p...

Journal: :The Journal of nutrition 1981
H Tagari N Silanikove S Hurwitz

Percentage net phosphorus availability (NPHA) and set phosphorus utilization (NPHU) of the phosphorus contained in a heat-sterilized poultry litter (PL) as compared to feed grade dicalcium phosphate (DCP) for lambs was assessed by the "slope" method. The method was based on the evaluation of the function of apparent phosphorus absorption (NPHA), or retention (NPHU), on phosphorus intake. Nitrog...

Journal: :JPEN. Journal of parenteral and enteral nutrition 2001
R N Dickerson J M Gervasio J J Sherman K A Kudsk W L Hickerson R O Brown

To compare phosphorus intake and renal phosphorus regulation between thermally injured patients and multiple trauma patients, 40 consecutive critically ill patients, 20 with thermal injury and 20 with multiple trauma, who required enteral tube feeding were evaluated. Phosphorus intakes were recorded for 14 days from the initiation of tube feeding which was started 1 to 3 days postinjury. Serum ...

Journal: :Clinical journal of the American Society of Nephrology : CJASN 2016
Orlando M Gutiérrez Afshin Parsa Tamara Isakova Julia J Scialla Jing Chen John M Flack Lisa C Nessel Jayanta Gupta Keith A Bellovich Susan Steigerwalt James H Sondheimer Jackson T Wright Harold I Feldman John W Kusek James P Lash Myles Wolf

BACKGROUND AND OBJECTIVES Disorders of mineral metabolism are more common in African Americans with CKD than in European Americans with CKD. Previous studies have focused on the differences in mineral metabolism by self-reported race, making it difficult to delineate the importance of environmental compared with biologic factors. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In a cross-sectio...

2017
Dinesh Adhikari Tianyi Jiang Taiki Kawagoe Takamitsu Kai Kenzo Kubota Kiwako S. Araki Motoki Kubo

Improvement of phosphorus circulation in the soil is necessary to enhance phosphorus availability to plants. Phosphorus circulation activity is an index of soil's ability to supply soluble phosphorus from organic phosphorus in the soil solution. To understand the relationship among phosphorus circulation activity; bacterial biomass; pH; and Fe, Al, and Ca concentrations (described as mineral co...

2010
Ahmed Alhaidary

Problem statement: There is evidence that the type of fiber influences the development of nephrocalcinosis in rats, but the effect of pectin was unknown. Approach: The effects of dietary pectin and cellulose on kidney calcification were studied in female rats. The diets used contained either 0.4-0.6% phosphorus and either cellulose (10%, w/w) or pectin. The purified diets used were balanced for...

2014
Rachel K Crowley Mark Kilbane Thomas FJ King Michelle Morrin Myra O’Keane Malachi J McKenna

INTRODUCTION This is the first report of which the authors are aware to describe this c.2166delinsGG mutation in X-linked hypophosphataemia and to describe normalisation of renal threshold for phosphate excretion after parathyroidectomy for tertiary hyperparathyroidism in X-linked hypophosphataemia. CASE PRESENTATION We present the case of a 34-year-old Caucasian woman with X-linked hypophosp...

Journal: :The Plant cell 2007
Shlomit Yehudai-Resheff Sara L Zimmer Yutaka Komine David B Stern

Cell survival depends on the cell's ability to acclimate to phosphorus (P) limitation. We studied the chloroplast ribonuclease polynucleotide phosphorylase (PNPase), which consumes and generates phosphate, by comparing wild-type Chlamydomonas reinhardtii cells with strains with reduced PNPase expression. In the wild type, chloroplast RNA (cpRNA) accumulates under P limitation, correlating with ...

2011
Desiree D. tullos

Restoring historic lake-fringe wetlands is considered a favorable means of reducing lake phosphorus levels; however, it is unclear how various strategies for managing wetland connectivity influence phosphorus release. We investigated the relationships between temperature and soil characteristics of restored wetlands to identify management strategies that minimize external phosphorus loading to ...

2012
Eric Lyons

A new fertilizer technology developed at Penn State University offers several potential benefits for turfgrass cultivation. The new technology employs a phosphorus buffering system (PBS), which , maintains a steady phosphorus concentration in the soil solution over time. The PBS has the size and consistency of sand (Fig. 1) and can be mixed with any soil media. Once charged with phosphorus, the...

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