نتایج جستجو برای: phosphorus p

تعداد نتایج: 1299810  

2015
Mohammad E. Naffaa Mona Mustafa Mohje Azzam Roni Nasser Nizar Andria Zaher S. Azzam Eyal Braun

BACKGROUND Community acquired pneumonia is a major cause of morbidity and mortality. The association between serum phosphorus levels on admission and the outcome of patients with community acquired pneumonia has not been widely examined. We aimed to investigate the prognostic value of serum phosphorus levels on admission on the 30- day mortality. METHODS The cohort included patients of 18 yea...

Journal: :Minerals 2022

Repeated manure additions containing phosphorus (P) in excess of crop needs have led to many agricultural soils with high levels soil P (i.e., legacy P), particularly the Delmarva region (USA). Due potential for release, it is important gain a better understanding mechanisms desorption and solubilization. Agricultural were collected from Peninsula, pools determined using suite wet chemical spec...

Journal: :به زراعی کشاورزی 0
طاهره رضاپور کویشاهی دانشجوی کارشناسی ارشد، گروه زراعت، دانشکدة کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت، ایران محمد حسین انصاری استادیار گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت، ایران. معرفت مصطفوی راد استادیار، بخش تحقیقات زراعی و باغی، مرکز تحقیقات کشاورزی و منابع طبیعی استان گیلان، رشت، ایران.

to evaluate the effects of some phosphorus solubilizing bacteria strains on yield and agronomic traits in local bean (phaseolus vulgaris l.) of guilan, different phosphate fertilizer rates were tested during 2014 growing season. this research was carried out in experimental field of agricultural and natural resource research center of guilan province as split plot arrangement based on randomize...

Journal: :Plant physiology 1973
A Trewavas

Sterile cultures of Lemna minor have been labeled with (32)P(1), and the ribosomal proteins have been examined for radioactivity. In relatively short term labeling a radioactive protein was found which ran as a single component in both urea/acetic acid and sodium lauryl sulfate gel electrophoresis. Acid hydrolysis of the labeled protein permitted the isolation of serine phosphate. After labelin...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2008
Masuo Iida Kenichiro Miyatake Atsushi Kimura

Although red phosphorus is used as a flame retardant for polymer materials, no analysis methods for it in resins has been established. Analysis methods for red phosphorus in resins were investigated using pyrolysis-gas chromatograpy/mass spectrometry (Py-GC/MS) by paying attention to the fact that it has a sublimation property. We found that the mass spectrum of red phosphorus shows a series of...

2014
Guohua Li Haigang Li Peter A. Leffelaar Jianbo Shen Fusuo Zhang

In order to identify the phosphorus species and concentration in animal manure, we comparatively characterized phosphorus in dairy manure, swine manure, and broiler litter, using a sequential procedure, a simplified two-step procedure (NaHCO3/NaOH+EDTA), and a solution Phosphorus-31 Nuclear Magnetic Resonance (31P-NMR) spectroscopy procedure. In the sequential procedure, deionized water extract...

2013
Munehiro Yoshida Tsutomu Fukuwatari Junya Sakai Tomiko Tsuji Katsumi Shibata

To clarify whether the urinary excretion of calcium, magnesium, phosphorus, iron, zinc, copper, manganese, selenium and molybdenum can be used as an index of their intake, the association between urinary excretion and intake in free-living individuals was examined. A total of 102 healthy free-living female university dietetics students aged 18 33 years voluntarily participated in this study, of...

2008
WILLIAM M. LEWIS WAYNE A. WURTSBAUGH SIGMUND FREUD

Control of lacustrine phytoplankton biomass by phosphorus is one of the oldest and most stable paradigms in modern limnology. Even so, evidence from bioassays conducted by multiple investigators at numerous sites over the last three decades shows that N is at least as likely as P to be limiting to phytoplankton growth. A number of important flaws in the evidence supporting the phosphorus paradi...

Journal: :Journal of applied microbiology 2012
M-Z Yao Y-H Zhang W-L Lu M-Q Hu W Wang A-H Liang

Phytases are a group of enzymes capable of releasing phosphates from phytates, one of the major forms of phosphorus (P) in animal feeds of plant origin. These enzymes have been widely used in animal feed to improve phosphorus nutrition and to reduce phosphorus pollution in animal waste. This review covers the basic nomenclature and crystal structures of phytases and emphasizes both the protein ...

2015
L. M. Vargas-Rodríguez G. Ruelas

The objective of this experiment was to evaluate the effect of citric acid (CA), phytase and calcium in diets of laying hens on the productive performances and digestibility and excretion of phosphorus (P), calcium and nitrogen (N). An experiment was designed using 24 week old laying hens, which were fed a diet with a base of sorghum and soybean meal containing 2,700 kcal ME/kg, 15% crude prote...

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