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https://www.readbyqxmd.com/read/28812895/correlating-free-volume-hole-distribution-to-the-glass-transition-temperature-of-epoxy-polymers
#1
Amin Aramoon, Timothy D Breitzman, Christopher F Woodward, Jaafar A El-Awady
A new algorithm is developed to quantify the free-volume hole distribution and its evolution in coarse-grained molecular dynamics simulations of polymeric networks. This is achieved by analyzing the geometry of the network rather than a voxelized image of the structure to accurately and efficiently find and quantify free-volume hole distributions within large scale simulations of polymer networks. The free-volume holes are quantified by fitting the largest ellipsoids and spheres in the free-volumes between polymer chains...
August 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28805393/disappearance-of-the-superionic-phase-transition-in-sub-5-nm-silver-iodide-nanoparticles
#2
Takayuki Yamamoto, Hirokazu Kobayashi, Loku Singgappulige Rosantha Kumara, Osami Sakata, Kiyofumi Nitta, Tomoya Uruga, Hiroshi Kitagawa
Bulk silver iodide (AgI) is known to show a phase transition from the poorly conducting β/γ-phases into the superionic conducting α-phase at 147 °C. Its transition temperature decreases with decreasing the size of AgI, and the α-phase exists stably at 37 °C in AgI nanoparticles with a diameter of 6.3 nm. In this Letter, we investigated the atomic configuration, the phase transition behavior, and the ionic conductivity of AgI nanoparticles with a diameter of 3.0 nm. The combination of pair distribution function (PDF) analysis and reverse Monte Carlo (RMC) modeling based on high-energy X-ray diffraction (XRD) revealed for the first time that they formed the β/γ-phases with atomic disorder...
August 14, 2017: Nano Letters
https://www.readbyqxmd.com/read/28801530/rhythmic-behavior-is-controlled-by-the-srm160-splicing-factor-in-drosophila-melanogaster
#3
Esteban J Beckwith, Carlos E Hernando, Sofía Polcowñuk, Agustina P Bertolin, Estefania Mancini, M Fernanda Ceriani, Marcelo J Yanovsky
Circadian clocks organize the metabolism, physiology, and behavior of organisms throughout the day-night cycle by controlling daily rhythms in gene expression at the transcriptional and post-transcriptional levels. While many transcription factors underlying circadian oscillations are known, the splicing factors that modulate these rhythms remain largely unexplored. A genome-wide assessment of the alterations of gene expression in a null mutant of the alternative splicing regulator SR-related matrix protein of 160 kD (SRm160) revealed the extent to which alternative splicing impacts on behavior-related genes...
August 11, 2017: Genetics
https://www.readbyqxmd.com/read/28783537/investigation-of-the-hd-semg-probability-density-function-shapes-with-varying-muscle-force-using-data-fusion-and-shape-descriptors
#4
Mariam Al Harrach, Sofiane Boudaoud, Vincent Carriou, Jeremy Laforet, Adrien J Letocart, Jean-François Grosset, Frédéric Marin
This work presents an evaluation of the High Density surface Electromyogram (HD-sEMG) Probability Density Function (PDF) shape variation according to contraction level. On that account, using PDF shape descriptors: High Order Statistics (HOS) and Shape Distances (SD), we try to address the absence of a consensus for the sEMG non-Gaussianity evolution with force variation. This is motivated by the fact that PDF shape information are relevant in physiological assessment of the muscle architecture and function, such as contraction level classification, in complement to classical amplitude parameters...
August 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28783497/incorporating-model-uncertainty-into-the-evaluation-of-interventions-to-reduce-microcontaminant-loads-in-rivers
#5
P Gimeno, R Marcé, Ll Bosch, J Comas, Ll Corominas
Models of microcontaminant fate and transport in wastewater treatment plants (WWTPs) and rivers have been developed and used to assist decision-making in the field of water management. These models come with parameter uncertainties that must be properly incorporated in the decision-making process. The main goal of this study is to evaluate how the magnitudes of key model parameter uncertainties influence the selection of end-of-pipe interventions (at WWTPs) designed to reduce the microcontaminant loads in rivers...
July 17, 2017: Water Research
https://www.readbyqxmd.com/read/28780858/lithiation-thermodynamics-and-kinetics-of-the-tio2-b-nanoparticles
#6
Xiao Hua, Zheng Liu, Michael G Fischer, Olaf Borkiewicz, Peter J Chupas, Karena W Chapman, Ullrich Steiner, Peter G Bruce, Clare P Grey
TiO2 (B) has attracted considerable attention in recent years because it exhibits the largest capacity among all studied titania polymorphs, with high rate performance for Li intercalation being achieved when this material is nanostructured. However, due to the complex nature of its lithiation mechanism and practical challenges in probing Li structure in nanostructured materials, a definitive understanding of the lithiation thermodynamics has yet to be established. A comprehensive mechanistic investigation of the TiO2 (B) nanoparticles is therefore presented using a combination of in situ / operando X-ray pair distribution function (PDF) and electrochemical techniques...
August 5, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28770093/the-clinical-practice-guideline-for-the-management-of-ards-in-japan
#7
Satoru Hashimoto, Masamitsu Sanui, Moritoki Egi, Shinichiro Ohshimo, Junji Shiotsuka, Ryutaro Seo, Ryoma Tanaka, Yu Tanaka, Yasuhiro Norisue, Yoshiro Hayashi, Eishu Nango
BACKGROUND: The Japanese Society of Respiratory Care Medicine and the Japanese Society of Intensive Care Medicine provide here a clinical practice guideline for the management of adult patients with ARDS in the ICU. METHOD: The guideline was developed applying the GRADE system for performing robust systematic reviews with plausible recommendations. The guideline consists of 13 clinical questions mainly regarding ventilator settings and drug therapies (the last question includes 11 medications that are not approved for clinical use in Japan)...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28766349/effects-of-granulocyte-colony-stimulating-factor-administration-time-on-pain
#8
A Ozkaraman, G Argon, O Usta Yesilbalkan, O Dugum, S Yigitaslan, A Musmul, G Balci Alparslan
OBJECTIVE: This study was aimed at evaluating the effect of administration time of granulocyte colony-stimulating factor (G-CSF) on the level of pain related to G-CSF. METHODS: This study was carried out with 48 cancer patients divided into A and B groups. In the first stage of the study, the groups A and B were planned to be administered with G-CSF at 10: 00 and 14: 00, respectively. In the second stage, patients in groups A and B were asked to self-administer filgrastim at 14: 00 and 10: 00, respectively...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28765896/1-25-oh-2d3-treatment-attenuates-high-glucose%C3%A2-induced-peritoneal-epithelial-to-mesenchymal-transition-in-mice
#9
Lina Yang, Yi Fan, Xiuli Zhang, Wenyu Huang, Jianfei Ma
It has been previously demonstrated that 1,25(OH)2D3 prevents the progression of epithelial to mesenchymal transition (EMT). However, it remains unclear whether 1,25(OH)2D3 has a role in peritoneal EMT stimulated by high glucose (HG) peritoneal dialysis fluid (PDF). The present study was performed to investigate the role of 1,25(OH)2D3 in the progression of EMT in the peritoneal mesothelium. A total of 35 male Kunming mice were randomly assigned into seven groups. In the control group, no diasylate or saline was infused...
July 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28765551/pair-distribution-function-analysis-of-sulfide-glassy-electrolytes-for-all-solid-state-batteries-understanding-the-improvement-of-ionic-conductivity-under-annealing-condition
#10
Shinya Shiotani, Koji Ohara, Hirofumi Tsukasaki, Shigeo Mori, Ryoji Kanno
In general, the ionic conductivity of sulfide glasses decreases with their crystallization, although it increases for a few sulphide glasses owing to the crystallization of a highly conductive new phase (e.g., Li7P3S11: 70Li2S-30P2S5). We found that the ionic conductivity of 75Li2S-25P2S5 sulfide glass, which consists of glassy and crystalline phases, is improved by optimizing the conditions of the heat treatment, i.e., annealing. A different mechanism of high ionic conductivity from the conventional mechanism is expected in the glassy phase...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28763388/health-impact-assessments-and-extreme-weather-challenges-for-environmental-health
#11
Kristina Kintziger, Jason Ortegren, Chris DuClos, Melissa Jordan, Talia Smith, Rebecca Foglietti, Robert Merritt, Louviminda Donado
BACKGROUND: The Florida Department of Health, Environmental Public Health Tracking Program, in collaboration with the Escambia County Health Department and the University of West Florida, used the Health Impact Assessment Framework to examine adverse health outcomes that may be related to an extreme flood event in Pensacola, Florida (Escambia County) during April 29 to May 3, 2014. In this 2014 flood event, portions of Pensacola received more than 15.5 in of rain in a single day. Infrastructure impacts from this extreme event included destroyed bridges and roads and the failure of many sewage lift stations...
September 2017: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/28758850/a-picture-based-carbohydrate-counting-resource-for-somalis
#12
Muna Sunni, Carol Brunzell, Jennifer Kyllo, Loren Purcell, Phillip Plager, Antoinette Moran
Objective Carbohydrate counting is essential for effective management of type 1 diabetes (T1D). Somali diet-specific carbohydrate-counting references are lacking, creating an additional barrier to effective diabetes control. We developed a picture-based carbohydrate-counting resource for Somalis with T1D. Methods Traditional Somali foods were selected using a variety of methods. Serving sizes and carbohydrate calculations were tabulated using the United States Department of Agriculture National Nutrient Database for Standard Reference...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28753432/snapshot-channel-gating-mechanisms
#13
Marcel P Goldschen-Ohm, Baron Chanda
Ion channel families are broadly classified into three types according to their major mechanisms of activation. This SnapShot highlights features of these three classes and conveys general modes of channel regulation. To view this SnapShot, open or download the PDF.
July 27, 2017: Cell
https://www.readbyqxmd.com/read/28750558/case-report-diagnosis-of-a-rare-plaque-like-dermal-fibroma-successfully-treated-with-mohs-surgery
#14
Pavandeep Gill, John Arlette, Carolyn J Shiau, Marie S Abi Daoud
BACKGROUND: CD34-positive plaque-like dermal fibroma (PDF) is a poorly characterised benign dermal neoplasm that has a wide differential diagnosis. It can be mistaken for other entities on superficial biopsy and be overtreated, leading to unnecessary worry and extensive surgery. OBJECTIVE: To report on an uncommon presentation of this entity, the histopathologic differential diagnosis of PDF, and a novel treatment method. METHODS: Clinical and histopathological information was obtained for a PDF lesion on a 75-year-old man...
July 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28748415/role-of-plasma-derived-fibrin-on-keratinocyte-and-fibroblast-wound-healing
#15
Jia Xian Law, Shiplu Roy Chowdhury, Bin Saim Aminuddin, Binti Haji Idrus Ruszymah
Fibrin has excellent biocompatibility and biological properties to support tissue regeneration and promote wound healing. However, the role of diluted fibrin in wound healing has yet to be elucidated as it is commonly used in high concentration. This study was aimed to examine the effects of diluted plasma-derived fibrin (PDF) on keratinocyte and fibroblast wound healing in term of cell proliferation, migration, extracellular matrix (ECM) production and soluble factor secretion. Two PDF concentrations, 10 and 20% (v/v) were tested on keratinocytes and fibroblasts indirectly co-cultured in the transwell system...
July 26, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28747789/pressure-induced-liquid-to-liquid-transition-in-zr-based-supercooled-melts-and-pressure-quenched-glasses
#16
W Dmowski, S Gierlotka, Z Wang, Y Yokoyama, B Palosz, T Egami
Through high-energy x-ray diffraction and atomic pair density function analysis we find that Zr-based metallic alloy, heated to the supercooled liquid state under hydrostatic pressure and then quenched to room temperature, exhibits a distinct glassy structure. The PDF indicates that the Zr-Zr distances in this glass are significantly reduced compared to those quenched without pressure. Annealing at the glass transition temperature at ambient pressure reverses structural changes and the initial glassy state is recovered...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28730667/role-of-plasma-exchange-leukocytapheresis-and-plasma-diafiltration-in-management-of-refractory-macrophage-activation-syndrome
#17
Noriko Kinjo, Kazuya Hamada, Chika Hirayama, Masaki Shimizu
Macrophage activation syndrome (MAS) is a life-threating complication of systemic juvenile idiopathic arthritis (s-JIA). Steroid and cyclosporine (CsA) are effective for MAS, but, treatment for steroid- and CsA-resistant patients is still challenging. We report the case of steroid and CsA resistant s-JIA associated MAS misdiagnosed as Kawasaki disease (KD), who was successfully treated with the combination of plasma exchange (PE) and leukocytapheresis (LCAP) followed by plasma diafiltration (PDF). PE + LCAP effectively removed proinflammatory cytokines and reduced the number of peripheral white blood cells...
July 21, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28721950/summaries-of-articles-in-this-issue
#18
(no author information available yet)
Summaries of the articles in this issue are given in the PDF file.
July 19, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28721948/summaries-of-articles-in-this-issue
#19
(no author information available yet)
Summaries of the articles in this issue are given in the PDF file.
July 19, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28721946/summaries-of-articles-in-this-issue
#20
(no author information available yet)
Summaries of the articles in this issue are given in the PDF file.
July 19, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
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