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Phosphorus

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https://www.readbyqxmd.com/read/28231702/effect-of-a-microbial-phytase-on-growth-performance-plasma-parameters-and-apparent-ileal-amino-acid-digestibility-in-youxian-sheldrake-fed-a-low-phosphorus-corn-soybean-diet
#1
Shaoping He, Rodolfo Frilles Medrano, Qifang Yu, Yixin Cai, Qiuzhong Dai, Jianhua He
Objective: This study investigated the effect of microbial phytase supplementation on growth performance, tibia ash, plasma parameters, apparent ileal digestibility (AID) of amino acid (AA) and apparent digestibility of nutrients in Youxian Sheldrakes fed with low-Phosphorus (P) corn-soybean diets. Methods: A total of 350 Youxian Sheldrakes (7d old) were randomly divided into 5 treatment groups: positive control (PC) group has adequate available P diet (0.42% and 0...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231155/correlations-between-polyacetylene-concentrations-in-carrot-daucus-carota-l-and-various-soil-parameters
#2
Lars Kjellenberg, Eva Johansson, Karl-Erik Gustavsson, Artur Granstedt, Marie E Olsson
This study assessed the concentrations of three falcarinol-type polyacetylenes (falcarinol, falcarindiol, falcarindiol-3-acetate) in carrots and the correlations between these and different soil traits. A total of 144 carrot samples, from three different harvests taken a single season, were analysed in terms of their polyacetylene concentrations and root development. On one of the harvesting occasions, 48 soil samples were also taken and analysed. The chemical composition of the soil was found to influence the concentrations of falcarinol-type polyacetylenes in carrots...
August 31, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231010/generation-of-anisotropic-massless-dirac-fermions-and-asymmetric-klein-tunneling-in-few-layer-black-phosphorus-superlattices
#3
Zhenglu Li, Ting Cao, Meng Wu, Steven G Louie
Artificial lattices have been employed in a broad range of two-dimensional systems, including those with electrons, atoms and photons, in the quest for massless Dirac fermions with high flexibility and controllability. Establishing triangular or hexagonal symmetry, from periodically patterned molecule assembly or electrostatic gating as well as from moiré pattern induced by substrate, has produced electronic states with linear dispersions from two-dimensional electron gas (2DEG) residing in semiconductors, metals and graphene...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28231004/ionic-intercalation-in-2d-van-der-waals-materials-in-situ-characterization-and-electrochemical-control-of-the-anisotropic-thermal-conductivity-of-black-phosphorus
#4
Joon Sang Kang, Ming Ke, Yongjie Hu
Two-dimensional van der Waals materials have shown novel fundamental properties and promise for wide applications. Here, we reported, for the first time, an experimental demonstration of the in-situ characterization and control of the anisotropic thermal conductivity of black phosphorus. We develop a novel platform based on lithium ion batteries that integrates ultrafast optical spectroscopy and electrochemical control to investigate the interactions between lithium ions and the lattices of the black phosphorus electrode...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230891/parathyroid-hormone-serum-concentration-in-central-european-patients-with-non-ischemic-heart-failure-as-a-potential-marker-of-disease-severity-and-poor-prognosis
#5
Grzegorz Marcin Kubiak, Agnieszka Kolaszko, Ewa Nowalany-Kozielska
IntroductionParathyroid hormone (PTH) might be considered as a potential marker of disease severity and worse prognosis in heart failure (HF) patients. ObjectivesTo assess PTH, vitamin D, phosphorus (P) and total calcium (Ca2+) serum concentrations in Central European patients suffering from HF of non-ischemic origin compared to non-HF volunteers.To evaluate potential correlations among the enumerated parameters, established markers of worse prognosis and declared sun exposure. Patients and methodsSerum intact-PTH, 25-OH vitamin D, P and total Ca2+ concentrations were assessed in a group of HF patients and non-HF volunteers...
February 23, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28230782/reported-dietary-intake-disparity-between-the-reported-consumption-and-the-level-needed-for-adequacy-and-food-sources-of-calcium-phosphorus-magnesium-and-vitamin-d-in-the-spanish-population-findings-from-the-anibes-study-%C3%A2
#6
Josune Olza, Javier Aranceta-Bartrina, Marcela González-Gross, Rosa M Ortega, Lluis Serra-Majem, Gregorio Varela-Moreiras, Ángel Gil
Calcium, phosphorus, magnesium and vitamin D have important biological roles in the body, especially in bone metabolism. We aimed to study the reported intake, the disparity between the reported consumption and the level needed for adequacy and food sources of these four nutrients in the Spanish population. We assessed the reported intake for both, general population and plausible reporters. Results were extracted from the ANIBES survey, n = 2009. Three-day dietary reported intake data were obtained and misreporting was assessed according to the European Food Safety Authority (EFSA)...
February 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28229558/microbial-diversity-of-a-full-scale-uasb-reactor-applied-to-poultry-slaughterhouse-wastewater-treatment-integration-of-16s-rrna-gene-amplicon-and-shotgun-metagenomic-sequencing
#7
Tiago Palladino Delforno, Gileno Vieira Lacerda Júnior, Melline F Noronha, Isabel K Sakamoto, Maria Bernadete A Varesche, Valéria M Oliveira
The 16S rRNA gene amplicon and whole-genome shotgun metagenomic (WGSM) sequencing approaches were used to investigate wide-spectrum profiles of microbial composition and metabolic diversity from a full-scale UASB reactor applied to poultry slaughterhouse wastewater treatment. The data were generated by using MiSeq 2 × 250 bp and HiSeq 2 × 150 bp Illumina sequencing platforms for 16S amplicon and WGSM sequencing, respectively. Each approach revealed a distinct microbial community profile, with Pseudomonas and Psychrobacter as predominant genus for the WGSM dataset and Clostridium and Methanosaeta for the 16S rRNA gene amplicon dataset...
February 23, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28229512/a-phosphorus-bisylide-exploring-a-new-class-of-superbases-with-two-interacting-carbon-atoms-as-basicity-centers
#8
Julius F Kögel, Davor Margetić, Xiulan Xie, Lars H Finger, Jörg Sundermeyer
Herein we present the first superbase MHPN with two interacting P-ylide entities. Unlike classical proton sponges, this novel compound class has carbon atoms as basicity centers which are forced into close proximity by a naphthalene scaffold. The bisylide exhibits an experimental pKBH(+)  value of 33.3±0.2 on the MeCN scale and a calculated gas-phase proton affinity of 277.9 kcal mol(-1) (M062X/6-311+G**//M062X/6-31G*+ZPVE method) exceeding that of the corresponding monoylide by nearly 15 kcal mol(-1) ...
February 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28229147/carbodiphosphorane-mediated-synthesis-of-a-triflyloxyphosphonium-dication-and-its-reactivity-towards-nucleophiles
#9
S Yogendra, F Hennersdorf, A Bauzá, A Frontera, R Fischer, J J Weigand
A carbodiphosphorane ((Ph3P)2C) mediated synthesis of the first triflyloxyphosphonium dication (12+) bearing two electrophilic sites is presented. Depending on the nucleophile, 12+ reacts selectively either at the sulfur atom of the triflyloxy moiety or at the directly attached phosphorus atom. In substitution reactions at the phosphorus atom the triflyloxy moiety serves as a leaving group and enables the synthesis of rare examples of pseudo-halophosphonium dications.
February 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28226260/temporal-performance-assessment-of-wastewater-treatment-plants-by-using-multivariate-statistical-analysis
#10
Milad Ebrahimi, Erin L Gerber, Thomas D Rockaway
For most water treatment plants, a significant number of performance data variables are attained on a time series basis. Due to the interconnectedness of the variables, it is often difficult to assess over-arching trends and quantify operational performance. The objective of this study was to establish simple and reliable predictive models to correlate target variables with specific measured parameters. This study presents a multivariate analysis of the physicochemical parameters of municipal wastewater. Fifteen quality and quantity parameters were analyzed using data recorded from 2010 to 2016...
February 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28226188/effects-of-melatonin-on-seedling-growth-mineral-nutrition-and-nitrogen-metabolism-in-cucumber-under-nitrate-stress
#11
Ruimin Zhang, Yunkuo Sun, Zeyu Liu, Wen Jin, Yan Sun
In China, excessive use of nitrogen fertilizers in greenhouses leads to nitrate accumulations in soil and plants, which then limits productivity. Melatonin, an evolutionarily highly conserved molecule, has a wide range of functions in plants. We analyzed the effects of melatonin pretreatment on the growth, mineral nutrition, and nitrogen metabolism in cucumber (Cucumis sativus L. 'Jin You No. 1') when seedlings were exposed to nitrate stress. An application of 0.1 mM melatonin significantly improved the growth of plants and reduced their susceptibility to damage due to high nitrate levels (0...
February 22, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28226039/educational-nursing-intervention-to-reduce-the-hyperphosphatemia-in-patients-on-hemodialysis
#12
Eniva Miladi Fernandes Stumm, Rosane Maria Kirchner, Laura de Azevedo Guido, Eliane Raquel Rieth Benetti, Angélica Gonçalves Silva Belasco, Ricardo de Castro Cintra Sesso, Dulce Aparecida Barbosa
Objective: to evaluate the effectiveness of an educational nursing intervention to reduce hyperphosphataemia in chronic renal patients on hemodialysis. Method: quasi-experimental study with 63 hyperphosphatemic patients on hemodialysis. The intervention consisted of developing and providing a printed and illustrated manual to patients containing information on disease control. The participant was asked to complete a daily checklist with the aim to reinforce aspects provided in the manual...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28225266/enhanced-phosphorus-locking-by-novel-lanthanum-aluminum-hydroxide-composite-implication-for-eutrophication-control
#13
Rui Xu, Meiyi Zhang, Robert J G Mortimer, Gang Pan
Lanthanum (La) bearing materials have been widely used to remove phosphorus (P) in water treatment. However, it remains a challenge to enhance phosphate (PO4) adsorption capacity and La usage efficiency. In this study, La was co-precipitated with aluminum (Al) to obtain a La/Al-hydroxide composite (LAH) for P adsorption. The maximum PO4 adsorption capacities of LAH (5.3% La) were 76.3 and 45.3 mg P g-1 at pH 4.0 and 8.5, which were 8.5 and 5.3 times higher than those of commercially available La-modified bentonite (Phoslock®, 5...
February 22, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28225171/complete-1-h-13-c-1-h-and-31-p-nmr-spectral-parameters-of-some-pyrophosphates
#14
Esa Haapaniemi
The (1) H, (13) C{(1) H}, and (31) P NMR spectral parameters of some pyrophosphates were determined in CDCl3 . The most complicated (1) H spectrum can be solved fully only as (A3 MN)R6 XX'R6 '(MNA3 )', where R6 (= -N(CH3 )2 ) is coupled only to phosphorus (X). Second order coupling between phosphorus was found and solved with iterative analysis. A signal shape of one of the carbon resonance cannot be explained only with couplings. Explanation for exceptional shape was searched from molecular modeling results...
February 22, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28225109/on-the-coordination-non-innocence-of-antimony-in-nickel-ii-complexes-of-the-tetradentate-o-ph2p-c6h4-3sb-ligand
#15
J Stuart Jones, Casey R Wade, Mengxi Yang, François P Gabbaï
In a continuation of our investigations into the unusual properties of antimony-based ligands, we have decided to investigate the structure of the complexes formed by the tetradentate ligands (o-(Ph2P)C6H4)3E (E = P (1), As (2), Sb (3)) with NiCl2. We observed that the structure of the resulting complexes depends on the nature of the central pnictogen atom E, with the phosphorus- and arsenic-based systems adopting ionic structures of the type [ClNi(o-(Ph2P)C6H4)3E][Cl] (E = P ([4][Cl]), As ([5][Cl])) while the known antimony complex ClNi(o-(Ph2P)C6H4)3SbCl (6-Cl) is molecular, with a chloride anion bound to the antimony atom trans from the nickel atom...
February 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28224683/confined-amorphous-red-phosphorus-in-mof-derived-n-doped-microporous-carbon-as-a-superior-anode-for-sodium-ion-battery
#16
Weihan Li, Shuhe Hu, Xiangyu Luo, Zhongling Li, Xizhen Sun, Minsi Li, Fanfan Liu, Yan Yu
Red phosphorus (P) has attracted intense attention as promising anode material for high-energy density sodium-ion batteries (NIBs), owing to its high sodium storage theoretical capacity (2595 mAh g(-1) ). Nevertheless, natural insulating property and large volume variation of red P during cycling result in extremely low electrochemical activity, leading to poor electrochemical performance. Herein, the authors demonstrate a rational strategy to improve sodium storage performance of red P by confining nanosized amorphous red P into zeolitic imidazolate framework-8 (ZIF-8) -derived nitrogen-doped microporous carbon matrix (denoted as P@N-MPC)...
February 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28224338/the-response-of-phosphorus-uptake-strategies-of-microcystis-aeruginosa-to-hydrodynamics-fluctuations
#17
Yue Zheng, Wujuan Mi, Yonghong Bi, Zhengyu Hu
The mechanisms of hydrodynamic fluctuation that affect cyanobacterial physiological aspects are still unclear. This study was conducted to screen the effects of hydrodynamic fluctuation on phosphorus (P) uptake by Microcystis aeruginosa. Four levels of circumfluence (0, 100, 200, and 300 rpm) and three concentrations of P (0.5, 2.0, and 5.0 mgL(-1)) were used, and the specific growth rate, cell viability, P uptake kinetic, and alkaline phosphatase activity (APA) were determined. Results showed that M. aeruginosa had a higher specific growth rate, cell viability, and P uptake rate at low and moderate circumfluence, APA increased with a decrease of the cellular P quota (Qp)...
February 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28224000/co-inoculation-effect-of-rhizobia-and-plant-growth-promoting-rhizobacteria-on-common-bean-growth-in-a-low-phosphorus-soil
#18
Hezekiah Korir, Nancy W Mungai, Moses Thuita, Yosef Hamba, Cargele Masso
Nitrogen (N) fixation through legume-Rhizobium symbiosis is important for enhancing agricultural productivity and is therefore of great economic interest. Growing evidence indicates that other soil beneficial bacteria can positively affect symbiotic performance of rhizobia. Nodule endophytic plant growth promoting rhizobacteria (PGPR) were isolated from common bean nodules from Nakuru County in Kenya and characterized 16S rDNA partial gene sequencing. The effect of co-inoculation of rhizobium and PGPR, on nodulation and growth of common bean (Phaseolus vulgaris L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28222921/relationships-between-left-ventricular-structure-and-function-according-to-cardiac-mri-and-cardiac-biomarkers-in-end-stage-renal-disease
#19
Bryan A Ross, Ron Wald, Marc B Goldstein, Darren A Yuen, Jonathon Leipsic, Mercedeh Kiaii, Andrea Rathe, Djeven P Deva, Anish Kirpalani, Olugbenga O Bello, John J Graham, Howard Leong-Poi, Kim A Connelly, Andrew T Yan
BACKGROUND: We sought to assess the relationships between left ventricular (LV) remodelling and the mechanical and uremic stressors in hemodialysis patients. METHODS: In this prospective 2-centre cohort study, 67 prevalent hemodialysis patients were followed for 1 year. Data on routine bloodwork and predialysis blood pressure (BP) measurements were collected over a 12-week period. LV end-diastolic volume (LVEDV) and LV mass (LVM) were measured using cardiac magnetic resonance imaging and indexed...
December 3, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28222424/1%C3%AE-25-oh-2d3-sensitive-cytosolic-ph-regulation-and-glycolytic-flux-in-human-endometrial-ishikawa-cells
#20
Ni Zeng, Yuetao Zhou, Shaqiu Zhang, Yogesh Singh, Bing Shi, Madhuri S Salker, Florian Lang
BACKGROUND/AIMS: Tumor cell proliferation is modified by 1,25-Dihydroxy-Vitamin D3 (1,25(OH)2D3), a steroid hormone predominantly known for its role in calcium and phosphorus metabolism. Key properties of tumor cells include enhanced glycolytic flux with excessive consumption of glucose and formation of lactate. As glycolysis is highly sensitive to cytosolic pH, maintenance of glycolysis requires export of H+ ions and lactate, which is in part accomplished by Na+/H+ exchangers, such as NHE1 and monocarboxylate transporters, such as MCT4...
February 8, 2017: Cellular Physiology and Biochemistry
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