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12 results for “laboratory protocol”
Testing Protocols for Obtaining Reliable PDFs from Laboratory x-ray Sources Using PDFgetX3
<p>In this work, we explored data acquisition protocols and improved data reduction protocols using PDFgetX3 to obtain reliable data for atomic pair distribution function (PDF) analysis from a laboratory-based Mo x-ray source. A variable counting scheme is described that preferentially counts in the high-angle region of the diffraction pattern. The effects on the resulting PDF are studied by varying the overall count time, the use of Soller slits, and limiting the out-of-plane divergence of the incident beam. The protocols are tested using an amorphous silica and a quartz sample. We also present a modification to the current PDFgetX3 data corrections to take care of sample absorption, which was previously neglected in the use of that program for high-energy synchrotron x-ray data. We show that, despite limitations in the Q-range and flux of laboratory instruments, reasonable data for PDF model fits may be obtained using the best protocols in a few hours of counting. </p>
Fig. 2 in Rearing protocol and density trials of the brown marmorated stink bug (Hemiptera: Pentatomidae) in the laboratory
Fig. 2. Mean (± SD) number of egg masses laid per female at densities of 1:1, 2:2, and 5:5 (female to male) per cage and mean (± SD) survival of females from first egg mass laid at densities of 1:1, 2:2, and 5:5 per cage
Fig. 1. Bug dorms. A in Rearing protocol and density trials of the brown marmorated stink bug (Hemiptera: Pentatomidae) in the laboratory
Fig. 1. Bug dorms. A. The large cage can house up to 12 bug dorms, with each stack containing 3 dorms. B. The large insect cage with humidifier attached. C. Stacks of Petri dishes. D. Humidifier.
New software protocols for enabling laboratory based temporal CT
<p>These are the accompanying datasets from the paper "<strong>New software protocols for enabling </strong><strong>laboratory based</strong><strong> temporal CT</strong>". There are two datasets: the germination of a mung bean captured using 54 uninterrupted time-lapse tomograms, and the precipitation of barite in a porous media with continuous golden-ratio projections.</p> <p>The data was collected using software extensions written for Nikon Metrology CT systems using IPC. These software extensions implemented the protocols highlighted in the paper, and can be found in the following GitHub repositories:</p> <p>Uninterrupted Time-Lapse CT: <a href="https://github.com/parmeshgajjar/TemporalCT-TimeLapse.Uninterrupted.git">https://github.com/parmeshgajjar/TemporalCT-TimeLapse.Uninterrupted.git</a></p> <p>Continuous Golden Ratio Acquisition CT: <a href="https://github.com/parmeshgajjar/TemporalCT-ContinuousGR.Acqusition">https://github.com/parmeshgajjar/TemporalCT-ContinuousGR.Acqusition</a></p> <p>The reconstructions were performed using the ASTRA toolbox with MATLAB. The code for this can be found at the following GitHub repository: <a href="https://github.com/jakobsj/TemporalCT-ContinuousGR.Reconstruction">https://github.com/jakobsj/TemporalCT-ContinuousGR.Reconstruction</a></p>
Evidence of Lax and disregard of laboratory safety protocols and regulations in China
<p>We collected from the Chinese Q&A website, https://www.zhihu.com/ ,First-hand documentation of laboratory safety breaches and incidents within a large number of laboratories with diverse research subjects and purposes in the People's Republic of China (PRC). The laboratories involved inluding Chemistry labs, Biolabs, Computer labs as well as Physics and Engineering labs.</p> <p>From these first-handed documentation, we obtained evidence of relaxed safety regulations and frequent breach of such regulations, with reasons ranging from poor training/education on lab safety, chronic ignorance of safety rules to intentional breach of protocols for purposes other than the research projects of the lab(s) of which the breach was documented in.</p> <p>Such breaches often resulted in safety accidents ranging from physical injury, chemical burns, chemical leaks, damage to property to lab-acquired infection and escape of in-lab pathogens. With consequences from personal-level to institution-level.</p> <p>THe provided .docx data files contained complete data dump from the following URLs:</p> <p>https://www.zhihu.com/question/55778718</p> <p>https://www.zhihu.com/question/23583072</p> <p>We also obtained evidence of improper disposal of laboratory waste in People's Republic of China from the following URL:</p> <p>https://www.zhihu.com/question/23583072</p> <p>We strongly advice relevant authorities to tighten lab safety rules, to engage in proper education of such rules to lab workers and researchers, and to take whatever action needed to stem the epidemic of safety violations and protocol breaches within Chinese Laboratories, in order to stop such frequent safety accidents from happening again in the future.</p>
Infusion Laboratory: Protocol 1 - Selegeline - 2
ClinicalTrials.gov study NCT00000337. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Abbott Laboratories Alinity s Blood Screening Assays - Clinical Evaluation Protocol
ClinicalTrials.gov study NCT03285295. IPD Sharing: NO. Countries: 1. Publications: 0.
Systematic assessment of next-generation sequencing for quantitative small RNA profiling: a multiple protocol study across multiple laboratories
GEO Series GSE94586. Homo sapiens; synthetic construct. 149 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Infusion Laboratory: Protocol 2 (Lisuride) - 3
ClinicalTrials.gov study NCT00000338. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Infusion Laboratory: Protocol 3 (Risperidone) - 4
ClinicalTrials.gov study NCT00000339. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Infusion Laboratory: Protocol 4 (Dihydrexidine) - 13
ClinicalTrials.gov study NCT00000348. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Infusion Laboratory: Protocol 5 (Flupenthixol) - 14
ClinicalTrials.gov study NCT00000349. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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