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46 results for “Phosphor”
Soil phosphorous: Herbivory by Nitrogen Interactive Effects on Community and Ecosystem Processes and Dynamics
E172 is an herbivory experiment established by Dave Tilman in fall 2004 by enclosing in deer fences three randomly selected plots from the six replicates of each control and each treatment in the N addition E001 experiment in field C. These plots still receive the nutrient treatments prescribed in the Experiment 001 protocols. From 1982-2004 a fence containing all of e001 plots in Field C was designed to exclude deer and all small mammals, including mice, voles and pocket gophers. This fence was removed in Fall of 2004 and individual plots designated for e172 were enclosed in deer fences. The purpose of E001 was to measure how adding nitrogen over a long time would affect the number of species, the type of species present, the amount of annual growth, and the change from year to year in the growth of each species in a plant community which is also relieved of grazing by large and small mammals. There are 8 different levels of nitrogen addition with other nutrients added to ensure that nitrogen remains the limiting nutrient, and a control which receives no nutrients. The plots are in a 6 by 9 grid and are 4 by 4 meters in size with 1 meter aisles between plots. Nitrogen fertilizer (NH4NO3) is applied twice per year, once in early May and once in late June.
Soil phosphorous: Long-Term Nitrogen Deposition: Population, Community, and Ecosystem Consequences
The purpose of this experiment is to measure how adding nitrogen over a long time will affect the number of species, the type of species present, the amount of annual growth, and the change from year to year in the growth of each species in a plant community which is also relieved of grazing by large and small mammals. The experiment is being conducted within fields (A, B, C, and D) which were initially low in soil nutrients. There are 8 different levels of nitrogen addition with other nutrients added to ensure that nitrogen remains the limiting nutrient, and a control which receives no nutrients. There are 6 replicates of the 9 treatments in fields A, B, and C and 5 replicates in field D. The treatments were randomly assigned to the plots. In fields A, B, and C the plots are in 6 by 9 grids and are 4 by 4 meters in size with 1 meter aisles between plots. In field D the plots are 1.5 by 4 meters and are placed in a 3 by 17 grid. The plots are enclosed by a fence to keep out mammalian herbivores. Gophers are trapped and removed as they appear. Nitrogenfertilizer (NH4NO3) is applied twice per year, once in early May and once in late June. This experiment was begun in 1982 by David Tilman.
Photoluminescence processes in τ-phase Dy3+/Tb3+-codoped Ba1.3Ca0.7SiO4 phosphors for solid-state lighting
<p>The τ-phase-Ba<sub>1.3</sub>Ca<sub>0.7</sub>SiO<sub>4</sub> phosphors co-doped with 3 mol% Dy<sup>3+</sup> and ~1-5 mol% Tb<sup>3+</sup> trivalent rare-earth ions were prepared by the gel-combustion method. The structure-property relation of the samples was examined by X-ray diffraction, scanning electron microscopy, and spectrophotometer. Here, the effect of Tb<sup>3+</sup>'s concentration on the spectroscopic properties of Dy<sup>3+</sup>/Tb<sup>3+</sup> co-doped Ba<sub>1.3</sub>Ca<sub>0.7</sub>SiO<sub>4</sub> phosphors was explored by using the photoluminescence excitation, emission, and decay curves. Importantly, the photonic energy transfer from (Dy<sup>3+</sup>: <sup>4</sup>F9/2 + Tb<sup>3+</sup>: <sup>7</sup>F<sub>6</sub>) to (Dy<sup>3+</sup>: <sup>6</sup>H<sub>15/2</sub> + Tb<sup>3+</sup>:<sup>5</sup>D<sub>4</sub>) was observed, in which the Dy<sup>3+</sup> ions acts as a light-emitting donor whereas the Tb<sup>3+</sup> ions as a light-absorbing acceptor, resulting in an enhanced emission from the co-doped Ba<sub>1.3</sub>Ca<sub>0.7</sub>SiO<sub>4</sub>: Dy<sup>3+</sup>/Tb<sup>3+</sup> phosphors. Finally, the chromaticity coordinates were determined from the measured emission spectra, locating at the green and white light regions. This observation indicates that the characteristic emission color could be tuned from white to green by varying Tb<sup>3+</sup> concentrations under ultraviolet light.</p>
Design, construction and traceable calibration of a phosphor-based fibre-optic thermometer from 0 °C to 650 °C
<p>Dataset associated with publication DOI <a href="https://doi.org/10.1088/1361-6501/abee53">https://doi.org/10.1088/1361-6501/abee53</a></p>
Chiral Phosphoric Acid Catalyzed Asymmetric Hydrolysis of Biaryl Oxazepines for the Synthesis of Axially Chiral Biaryl Amino Phenol Derivatives
<p>This folder /DFT_structures/ contains the DFT-optimized geometries (in .xyz format together with the gas-phase energy, E) accompanying the paper</p> <p>"Chiral Phosphoric Acid Catalyzed Asymmetric Hydrolysis of Biaryl Oxazepines for the Synthesis of Axially Chiral Biaryl Amino Phenol Derivatives"</p> <p>Where conformers occur, they are always named from the lowest Gibbs energy to the highest in ascending order from c1 (sometimes omitted), c2, c3, ...</p> <p>This folder contains the following sub-folders:</p> <p>- /irc_movies/ contains movies of the IRC analyses for the rotational barrier TSs;</p> <p>- /structures/ contains the DFT-optimized structures</p>
Serum Calcium to Phosphorous (Ca/P) Ratio in the Diagnosis of Ca-P Metabolism Disorders: a Multicentre Study
ClinicalTrials.gov study NCT03747029. IPD Sharing: NO. Countries: 1. Publications: 1.
Photoluminescence processes in τ-phase Dy3+/Tb3+-codoped Ba1.3Ca0.7SiO4 phosphors for solid-state lighting
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Soil phosphorous:Effect of Burning Patterns on Vegetation in the Fish Lake Burn Compartments
This study examines the effects of long-term prescribed burning treatments on vegetation structure and composition, productivity, and nutrient cycling in upland oak savanna and woodland vegetation. The basis for the study is an ongoing, experimental prescribed burning program begun in 1964 at Cedar Creek, and a similar program operating since 1962 on the adjacent Helen Allison Savanna property (owned by The Nature Conservancy). These prescribed burning programs are designed to subject upland oak communities (and some old fields) to different burn frequencies and patterns of burning, with the ultimate objectives of 1) restoring and maintaining the historically important savanna and open woodland vegetation, and 2) providing information about the effects of different burning patterns on vegetation structure and composition. This study addresses the latter of these two purposes and expands on it by also investigating possible influences of fire on resource availability (nutrients, water, and light) and net primary productivity. This study represents a continuation and expansion of experiments 015 and 094.
Supplementary Information "Fabrication and characterization of narrow wavelength phosphors of Tb-doped yttrium-silicon-aluminum oxynitride using spray pyrolysis"
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Phosphorous starved Maize plant root exudate strigolactone and rhizosphere microbes
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Does Intravenous Iron Therapy Decrease Serum Phosphorous Levels?
ClinicalTrials.gov study NCT02420119. IPD Sharing: NO. Countries: 1. Publications: 0.
Role of Activated Charcoal in Decreasing Blood Urea, Creatinine and Phosphorous
ClinicalTrials.gov study NCT04311645. IPD Sharing: Not stated. Countries: 0. Publications: 9.
Data from: Production of bioadsorbent from phosphoric acid pretreated palm kernel shell and coconut shell by two-stage continuous physical activation via N2 and air
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Different enrichment patterns of pedogenic magnetic particles modulated by primary iron-phosphorous input
<p>Data supporting this research are available for people who engage in scientific research. Note that the data can not be used for any commercial activities.</p>
White-emitting Protein-Metal Nanocluster Phosphors for Highly Performing Biohybrid Light-Emitting Diodes
<p>This work presents a simple in situ synthesis and stabilization of fluorescent gold nanoclusters (AuNCs) with different sizes using engineered protein scaffolds in water. The protein-AuNC hybrids show a dual emission (450 and 700 nm) with a record photoluminescence quantum yield of 20%. These features impelled us to apply them to biohybrid light-emitting diodes as color down-converting filters or biophosphors. Efficient white emission (x/y CIE color coordinates of 0.31/0.29) and stabilities of more than 800 h were achieved. This represents a 2 orders of magnitude enhancement compared to the prior art. Besides the outstanding performance, the protein scaffold also infers a unique anisotropic emission character that is considered as a proof-of-concept of high interest for single-point lighting and display.</p>
Performance Of Cervical Restorations Using Nitric Acid and Mineral Enriched Adhesive Versus Phosphoric Acid and Universal Adhesive
ClinicalTrials.gov study NCT05928533. IPD Sharing: YES. Countries: 1. Publications: 0.
Trial Comparing Moviprep and Phosphoral as Bowel Prep Before Colonoscopy
ClinicalTrials.gov study NCT01519609. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Acute Changes in the Mineral Metabolism After a High Phosphorous Containing Meal in Dialysis Patients
ClinicalTrials.gov study NCT03868371. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Comparing Oral Preparation With Macrogol (Moviprep) and Natriumdihydrogenphosphatdihydrat (Phosphoral)
ClinicalTrials.gov study NCT01705262. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Serum Calcium to Phosphorous Ratio (Ca/P) as a Simple, Inexpensive Screening Tool in the Diagnosis of Primary Hyperparathyroidism
ClinicalTrials.gov study NCT03027349. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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