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https://www.readbyqxmd.com/read/28637180/participatory-design-of-probability-based-decision-support-tools-for-in-hospital-nurses
#1
Alvin D Jeffery, Laurie L Novak, Betsy Kennedy, Mary S Dietrich, Lorraine C Mion
Objective: To describe nurses' preferences for the design of a probability-based clinical decision support (PB-CDS) tool for in-hospital clinical deterioration. Methods: A convenience sample of bedside nurses, charge nurses, and rapid response nurses ( n  = 20) from adult and pediatric hospitals completed participatory design sessions with researchers in a simulation laboratory to elicit preferred design considerations for a PB-CDS tool. Following theme-based content analysis, we shared findings with user interface designers and created a low-fidelity prototype...
June 19, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28636567/invariant-wide-bandgaps-in-honeycomb-monolayer-and-single-walled-nanotubes-of-iib-vi-semiconductors
#2
Xiaoxuan Ma, Jun Hu, Bicai Pan
Search for low-dimensional materials with unique electronic properties is important for the development of electronic devices in nano scale. Through systematic first-principles calculations, we found that the band gaps of the two-dimensional honeycomb monolayers and one-dimensional single-walled nanotubes of IIB-VI semiconductors (ZnO, CdO, ZnS and CdS) are nearly chirality-independent and weakly diameter-dependent. Based on analysis of the electronic structures, it was found that the conduction band minimum is contributed by the spherically symmetric $s$ orbitals of cations and the valence band maximum is dominated by the in-plane d<sub>xy</sub>-p<sub>y</sub> and d<sub>x<sup>2</sup>-y<sup>2</sup></sub>-p<sub>x</sub> hybridizations...
June 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28636401/one-step-solvothermal-synthesis-of-petalous-carbon-coated-cu-doped-cds-nanocomposites-with-enhanced-photocatalytic-hydrogen-production
#3
Bin He, Ren Liu, Jiabin Ren, Caijian Tang, Yijun Zhong, Yong Hu
Metal ion doping and nanocoating to CdS photocatalyst have been proved to be effective strategies to inhibit photocorrosion and improve photocatalytic performance. In this study, carbon-coated Cu+-doped CdS nanocomposites (C-Cu-CdS) with a stable petalous structure and highly uniform size distribution were successfully synthesized via a facile one-step solvothermal method. Both Cu+ doping and carbon coating to the CdS photocatalyst are realized in this one-step strategy. Benefiting from the unique core-shell structure and metal ion doping, the as-prepared C-Cu-CdS catalyst exhibits significantly enhanced photostability and visible-light-driven photocatalytic efficiency...
June 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28636398/ultrafast-carrier-trapping-in-thick-shell-colloidal-quantum-dots
#4
Ankit Jain, Oleksandr Voznyy, Marek Korkusinski, Pawel Hawrylak, Edward H Sargent
It has previously been found that Auger processes can lead to femtosec- ond carrier trapping in quantum dots, limiting their performance in opto- electronic applications that rely on radiative recombination. Here, using atomistic simulations, we investigate whether a shell can protect carriers from Auger-assisted trapping. For these studies we investigate CdSe/CdS core-shell quantum dots having total diameters reaching up to 10 nm. We find trapping lifetimes as fast as 1 ps for 2 nm shells, and we report that shells as thick as 6 nm are required to suppress trapping fully...
June 21, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28636384/role-of-crystal-structure-and-chalcogenide-redox-properties-on-the-oxidative-assembly-of-cadmium-chalcogenide-nanocrystals
#5
Jessica Davis, Aaron M Chalifoux, Stephanie L Brock
Oxidative assembly of metal chalcogenide nanocrystals (NCs) enables formation of 2-D (dense) and 3-D porous structures without the presence of intervening ligands between particles that can moderate transport properties. This route has been demonstrated successful for a range of single component structures including CdQ, PbQ and ZnQ (Q = S, Se, Te). En route to controllable assembly of multicomponent nanostructures, the roles of Q redox properties (2Q2-  Q22- + 2e), responsible for particle crosslinking, and the native structure (cubic zinc blende vs...
June 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28635999/carbon-dots-promoted-vanadium-flow-batteries-for-all-climate-energy-storage
#6
Ying Zhou, Le Liu, Yi Shen, Lantao Wu, Lihong Yu, Feng Liang, Jingyu Xi
We report a one-pot solvothermal method to prepare a carbon dots decorated graphite felt (CDs/GF) electrode. The resulting CDs/GF shows excellent wettability and greatly enhanced activity towards vanadium redox couples. VFB with the CDs/GF electrode exhibits outstanding rate performance, superior cycling stability, and broad temperature adaptability from -20 to 60 °C.
June 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28634397/one-pot-hydrothermal-synthesis-of-cds-decorated-cus-microflower-like-structures-for-enhanced-photocatalytic-properties
#7
Xiaolong Deng, Chenggang Wang, Hongcen Yang, Minghui Shao, Shouwei Zhang, Xiao Wang, Meng Ding, Jinzhao Huang, Xijin Xu
CdS decorated CuS structures have been controllably synthesized through a one-pot hydrothermal method. The morphologies and compositions of the as-prepared samples could be concurrently well controlled by simply tuning the amount of CdCl2 and thiourea. Using this strategy, the morphology of the products experienced from messy to flower-like morphologies with multiple porous densities, together with the phase evolution from pure CuS to the CdS/CuS composites. Serving as a photocatalyst, the samples synthesized with the addition of 1 mmol cadmium chloride and 3 mmol thiourea during synthetic process, showed the best photocatalytic activity, which could reach a maximum photocatalytic efficiency of 93% for methyl orange (MO) photodegradation after 150 min...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633169/untapped-potential-performance-of-procedural-skills-in-the-family-medicine-clerkship
#8
Martina Kelly, Kelly M Everard, Lara Nixon, Alexander Chessman
BACKGROUND AND OBJECTIVES: While family medicine residency directors have expressed concern about low procedural skills proficiency among incoming residents, curricular recommendations do not provide widely accepted guidance. This study was designed to describe requirements and experiences in procedural skill training during the family medicine clerkship and test the hypothesis that more rural placements may support this training. METHODS: The survey was conducted as part of the CAFM Educational Research Alliance (CERA) Family Medicine Clerkship Director (CD) 2013 survey...
June 2017: Family Medicine
https://www.readbyqxmd.com/read/28631477/influence-of-the-electrostatic-interaction-between-molecular-catalyst-and-semiconductor-on-photocatalytic-hydrogen-evolution-activities-in-cobaloxime-cds-hybrid-systems
#9
Yuxing Xu, Ruotian Chen, Zhen Li, Ai-Long Li, Hongxian Han, Can Li
The influence of the electrostatic interaction on photocatalytic H2 evolution activities in cobaloxime/CdS hybrid systems was studied by measuring the charges of cobaloximes and zeta potentials of CdS at different pH conditions (pH 4~7). The cobaloxime/CdS hybrid systems may serve as a valid model for the investigation of the electrostatic interaction between molecular and semiconductor, because the kinetics of methanol oxidation and the driving force of electron transfer from photo-irradiated CdS to cobaloximes have little effect on the pH dependent photocatalytic H2 evolution activities...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28630308/measuring-shared-variants-in-cohorts-of-discordant-siblings-with-applications-to-autism
#10
Kenny Ye, Ivan Iossifov, Dan Levy, Boris Yamrom, Andreas Buja, Abba M Krieger, Michael Wigler
We develop a method of analysis [affected to discordant sibling pairs (A2DS)] that tests if shared variants contribute to a disorder. Using a standard measure of genetic relation, test individuals are compared with a cohort of discordant sibling pairs (CDS) to derive a comparative similarity score. We ask if a test individual is more similar to an unrelated affected than to the unrelated unaffected sibling from the CDS and then, sum over such individuals and pairs. Statistical significance is judged by randomly permuting the affected status in the CDS...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630112/rapid-evolution-of-ovarian-biased-genes-in-the-yellow-fever-mosquito-aedes-aegypti
#11
Carrie A Whittle, Cassandra G Extavour
Males and females exhibit highly dimorphic phenotypes, particularly in their gonads, which is believed to be driven largely by differential gene expression. Typically, the protein sequences of genes upregulated in males, or male-biased genes, evolve rapidly as compared to female-biased and unbiased genes. To date, the specific study of gonad-biased genes remains uncommon in metazoans. Here, we identified and studied a total of 2,927, 2,013 and 4,449 coding-sequences (CDS) with ovary-biased, testis-biased and unbiased expression respectively in the yellow-fever mosquito Aedes aegypti The results showed that ovary-biased and unbiased CDS had higher nonsynonymous to synonymous substitution rates (dN/dS) and lower optimal codon usage (those codons that promote efficient translation) than testis-biased genes...
June 19, 2017: Genetics
https://www.readbyqxmd.com/read/28629823/characterization-and-biological-function-analysis-of-the-trim47-gene-from-common-carp-cyprinus-carpio
#12
Yeda Wang, Ming Kuang, Yuanan Lu, Li Lin, Xueqin Liu
The TRIM family protein was known to play an important role in many cellular processes, including potential antiviral activity, which has attracted lots of attention. In this study, a TRIM47 homolog from common carp (Cyprinus carpio) was cloned and the full length coding DNA sequence (CDS) of this gene was analyzed, results showed that there was a 97% similarity between common carp and zebrafish (Danio rerio), but only 18% similarity with that of human (Homo sapiens) and mouse (Mus musculus). The tissue distribution analysis showed TRIM47 had the highest mRNA level in the brain, a few immune related organs such as liver and kidney also had a relatively high level of TRIM47 expression...
June 16, 2017: Gene
https://www.readbyqxmd.com/read/28629318/the-effect-of-a-daily-application-of-a-0-05-chlorhexidine-oral-rinse-solution-on-the-incidence-of-aspiration-pneumonia-in-nursing-home-residents-a-multicenter-study
#13
Vanessa R Y Hollaar, Gert-Jan van der Putten, Claar D van der Maarel-Wierink, Ewald M Bronkhorst, Bert J M de Swart, Nico H J Creugers
BACKGROUND: Dysphagia and potential respiratory pathogens in the oral biofilm are risk factors for aspiration pneumonia in nursing home residents. The aim of the study was to examine if the daily application of 0.05% chlorhexidine oral rinse solution is effective in reducing the incidence of aspiration pneumonia in nursing home residents with dysphagia. Associations between background variables (age, gender, dysphagia severity, care dependency, medication use, number of medical diagnoses, teeth and dental implants, and wearing removable dentures) and the incidence of aspiration pneumonia were also examined...
June 19, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28629078/fluorescent-cds-pcl-hybrids-via-tartaric-acid-cds-cocatalyzed-polymerization
#14
Manqing Yan, Mingchen Zhou, Jing Chen, Tianlei Zhao, Longxiang Tang, Hong Bi
In this paper, the environment-friendly, water-soluble carbon dots (CDs) with stable photoluminescence (PL) have been prepared via the one-step pyrolysis of lotus leaf. Then the as-prepared CDs containing abundant hydroxylic and carboxylic groups were employed as cocatalyst with tartaric acid (TA) in ring-opening polymerization (ROP) of ε-caprolactone (ε-CL). The low-toxic organic acid TA, as main catalyst, was used to catalyze the ROP of ε-CL efficiently. The fluorescent CDs@PCL hybrids were obviously hydrophobic and they exhibited an excellent biocompatibility, and biodegradability due to the existence of PCL...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628316/soft-sphere-continuum-solvation-in-electronic-structure-calculations
#15
Giuseppe Fisicaro, Luigi Genovese, Oliviero Andreussi, Sagarmoy Mandal, Nisanth N Nair, Nicola Marzari, Stefan Goedecker
We present an implicit solvation approach where the interface between the quantum-mechanical solute and the surrounding environment is described by a fully continuous permittivity built up with atomic-centered ``soft'' spheres. This approach combines many of the advantages of the self-consistent continuum solvation model in handling solutes and surfaces in contact with complex dielectric environments or electrolytes in electronic-structure calculations. In addition it is able to describe accurately both neutral and charged systems...
June 19, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28627497/fluorescent-carbon-nanodots-facilely-extracted-from-coca-cola-for-temperature-sensing
#16
Feiming Li, Qiaoling Chen, Zhixiong Cai, Fangyuan Lin, Wei Xu, Yiru Wang, Xi Chen
A novel method for the fabrication of carbon nanodots (CDs) is introduced by extracting CDs from a well-known soft drink Coca-Cola Sodas via dialysis. The obtained CDs are of good monodispersity with narrow size distribution (average diameter of 3.0 nm), good biocompatibility, high solubility (about 180 mg/mL) and stable fluorescence even at high salt concentration. Furthermore, they are sensitive to the temperature change with a linear relationship between the fluorescence intensity and temperature from 5 to 95 oC...
June 19, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28624088/nootkatone-encapsulation-by-cyclodextrins-effect-on-water-solubility-and-photostability
#17
Miriana Kfoury, David Landy, Steven Ruellan, Lizette Auezova, Hélène Greige-Gerges, Sophie Fourmentin
Nootkatone (NO) is a sesquiterpenoid volatile flavor, used in foods, cosmetics and pharmaceuticals, possessing also insect repellent activity. Its application is limited because of its low aqueous solubility and stability; this could be resolved by encapsulation in cyclodextrins (CDs). This study evaluated the encapsulation of NO by CDs using phase solubility studies, Isothermal Titration Calorimetry, Nuclear Magnetic Resonance spectroscopy and molecular modeling. Solid CD/NO inclusion complex was prepared and characterized for encapsulation efficiency and loading capacity using UV-Visible...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28619604/clinical-implementation-of-pharmacogenomics-for-personalized-precision-medicine-barriers-and-solutions
#18
REVIEW
Michelle Elizabeth Klein, Md Masud Parvez, Jae-Gook Shin
Clinical implementation of pharmacogenomics (PGx) leads to personalized medicine, which improves the efficacy, safety, and cost-effectiveness of treatments. Although PGx-based research has been conducted for more than a decade, several barriers have slowed down its widespread implementation in clinical practice. Globally, there is an imbalance in programs and solutions required to empower the clinical implementation of PGx between countries. Therefore, we aimed to review these issues comprehensively, determine the major barriers, and find the best solutions...
June 12, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28618223/covalent-protein-labeling-and-improved-single-molecule-optical-properties-of-aqueous-cdse-cds-quantum-dots
#19
Sara M Wichner, Victor R Mann, Alexander S Powers, Maya A Segal, Mustafa Mir, Jigar N Bandaria, Mark A DeWitt, Xavier Darzacq, Ahmet Yildiz, Bruce E Cohen
Semiconductor quantum dots (QDs) have proven to be superior probes for single-molecule imaging compared to organic or genetically encoded fluorophores, but they are limited by difficulties in protein targeting, their larger size, and on-off blinking. Here, we report compact aqueous CdSe/CdS QDs with significantly improved bioconjugation efficiency and superior single-molecule optical properties. We have synthesized covalent protein labeling ligands (i.e., SNAP tags) that are optimized for nanoparticle use, and QDs functionalized with these ligands label SNAP-tagged proteins ∼10-fold more efficiently than existing SNAP ligands...
June 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28617494/spectral-and-photochemical-properties-of-hybrid-organic-inorganic-nanosystems-based-on-cds-quantum-dots-and-merocyanine-ligands
#20
Oleg V Chashchikhin, Mikhail F Budyka
The spectral and photochemical properties of hybrid organic-inorganic nanosystems (HNSs) were investigated. HNS consisted of CdS quantum dots (QDs) functionalized with ligands containing the isothiouronium anchor group linked by a polymethylene chain with photochromic merocyanine (MC). The HNS synthesis was carried out via a microwave-assisted one-pot technique. Energy transfer from the QDs to MC in the HNS was observed and resulted in QD fluorescence quenching and MC sensitization. Compared to the free MC, trans-cis photoisomerization of MC in the HNS was suppressed and its photodestruction was accelerated...
June 15, 2017: Photochemical & Photobiological Sciences
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