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https://www.readbyqxmd.com/read/29143420/investigation-of-surface-sulfurization-in-cuin1-xgaxs2-ysey-thin-films-to-enhance-photovoltaic-properties
#1
Haeri Kim, Se Jin Park, Byungwoo Kim, Yun Jeong Hwang, Byoung Koun Min
CuIn1-xGaxS2-ySey (CIGSSe) thin films have attracted a great deal of attention as a promising absorbing material for solar cell applications due to their favorable optical properties (e.g. a direct band gap and high absorption coefficients) and stable structure. Many studies have sought to improve the efficiency of solar cells using these films, and it has been found that surface modification via post heat treatment can lead to surface passivation of surface defects and a subsequent increase in efficiency. The surface properties of solution-processed CIGSSe films are considered to be particularly important in this respect due to the fact they are more prone to defects...
November 15, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29138312/correlating-cell-shape-and-cellular-stress-in-motile-confluent-tissues
#2
Xingbo Yang, Dapeng Bi, Michael Czajkowski, Matthias Merkel, M Lisa Manning, M Cristina Marchetti
Collective cell migration is a highly regulated process involved in wound healing, cancer metastasis, and morphogenesis. Mechanical interactions among cells provide an important regulatory mechanism to coordinate such collective motion. Using a self-propelled Voronoi (SPV) model that links cell mechanics to cell shape and cell motility, we formulate a generalized mechanical inference method to obtain the spatiotemporal distribution of cellular stresses from measured traction forces in motile tissues and show that such traction-based stresses match those calculated from instantaneous cell shapes...
November 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29133459/pathophysiological-changes-of-the-cerebellum-and-brain-stem-in-a-rabbit-model-after-superior-petrosal-vein-sacrifice
#3
Lei Cheng, Pin Guo, Yi-Wei Liao, Hong-Liang Zhang, Huan-Ting Li, Xianrui Yuan
In certain surgical procedures sacrifice of the superior petrosal vein (SPV) is required. Previous studies have reported transient cerebellar edema, venous infarction or hemorrhage might occur after sectioning of the SPV. This study investigated the pathophysiological changes of cerebellum and brain stem after SPV sacrifice. Rabbits were divided into the operation group where the SPV was sacrificed and the control group where the SPV remained intact. Each group was further subdivided into 4, 8, 12, 24, 48 and 72 hours groups which represented the time period from sacrifice of the SPV to sacrifice of the rabbits...
November 13, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29122615/ultrastructural-and-molecular-characterization-of-vairimorpha-austropotamobii-sp-nov-microsporidia-burenellidae-and-thelohania-contejeani-microsporidia-thelohaniidae-two-parasites-of-the-white-clawed-crayfish-austropotamobius-pallipes-complex-decapoda-astacidae
#4
Tobia Pretto, Francesco Montesi, Daniela Ghia, Valeria Berton, Miriam Abbadi, Michele Gastaldelli, Amedeo Manfrin, Gianluca Fea
The microsporidiosis of the endangered white-clawed crayfish Austropotamobius pallipes complex has generally been attributed to only one species, Thelohania contejeani, the agent of porcelain disease. Species identification was mostly assessed by macroscopic examination or microscopic evaluation of muscle samples rather than by molecular or ultrastructural analyses. A survey conducted on A. pallipes complex populations in Northern Italy highlighted the presence of two different microsporidia causing similar muscular lesions, T...
November 6, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29067286/recognition-of-a-virtual-scene-via-simulated-prosthetic-vision
#5
Ying Zhao, Xiulin Geng, Qi Li, Guangqi Jiang, Yu Gu, Xiaoqi Lv
In order to effectively aid the blind with optimal low-resolution vision and visual recovery training, pathfinding and recognition tests were performed using a simulated visual prosthetic scene. Simple and complex virtual scenes were built using 3DMAX and Unity, and pixelated to three different resolutions (32 × 32, 64 × 64, and 128 × 128) for real-time pixel processing. Twenty subjects were recruited to complete the pathfinding and object recognition tasks within the scene. The recognition accuracy and time required were recorded and analyzed after the trials...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29031327/respiratory-variation-in-aortic-blood-peak-velocity-and-caudal-vena-cava-diameter-can-predict-fluid-responsiveness-in-anaesthetised-and-mechanically-ventilated-dogs
#6
M Bucci, R Rabozzi, C Guglielmini, P Franci
BACKGROUND AND M&MS: Dynamic preload indices, such as systolic pressure variation (SPV), aortic flow peak velocity variation (ΔVpeak) and distensibility index of the caudal vena cava (CVCDI), are reliable indices for predicting fluid responsiveness in humans. This study aimed to investigate the ability of these indices to predict fluid response in 24 healthy dogs undergoing general anaesthesia and mechanical ventilation. Aortic flow peak velocity variation (∆Vpeak), CVCDI, and SPV were calculated before volume expansion (5mL/kg bolus of lactated Ringer's solution)...
September 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29028921/smartpilot%C3%A2-view-guided-anaesthesia-improves-postoperative-outcomes-in-hip-fracture-surgery-a-randomized-blinded-controlled-study
#7
D Leblanc, M Conté, G Masson, F Richard, A Jeanneteau, G Bouhours, J M Chrétien, L Rony, E Rineau, S Lasocki
Background: Both under-dosage and over-dosage of general anaesthetics can harm frail patients. We hypothesised that computer-assisted anaesthesia using pharmacokinetic/pharmacodynamic models guided by SmartPilot® View (SPV) software could optimise depth of anaesthesia and improve outcomes in patients undergoing hip fracture surgery. Methods: This prospective, randomized, single-centre, blinded trial included patients undergoing hip fracture surgery under general anaesthesia...
November 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28984802/vestibular-function-change-in-a-vasopressin-induced-hydrops-model
#8
Minbum Kim, Kyu-Sung Kim
HYPOTHESIS: A vasopressin-induced endoymphatic hydrops model can represent an acute vertiginous attack in Menière's disease (MD). BACKGROUND: Previous animal models are not appropriate to evaluate the efficacy of new treatments for hydrops because they cannot represent an acute attack of MD. Recently, a new dynamic model was introduced for acute hydrops exacerbation using the vasopressin type 2 receptor agonist, desmopressin (1-deamino-8-D-Arginine vasopressin, VP); however, resulting changes in vestibular function have not been investigated...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28968003/the-enhanced-photocatalytic-hydrogen-evolution-of-nicop-g-c3n4-with-the-improved-separation-efficiency-and-charge-transfer-efficiency
#9
Lingling Bi, Xupeng Gao, Lijing Zhang, Dejun Wang, Xiaoxin Zou, Tengfeng Xie
NiCoP has caused wide attention in the field of electrocatalysis, while there is little concern on photocatalysis study and its photocatalytic mechanism. Herein we reported a simple one-pot synthesis method of NiCoP/g-C3N4 as highly efficient photocatalyst for hydrogen production from water for the first time. Remarkably, the excellent photocatalytic activity is obtained for the 50 mg NiCoP/g-C3N4 (1643 molg-1h-1), which is 21 times higher than that of bare g-C3N4. The excellent performance is due to the synergistic effect of the improved separation efficiency and the effective charge transfer efficiency...
October 2, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28912837/carbuncle-due-to-salmonella-enteritidis-a-novel-presentation
#10
Wadha Alfouzan, Dieter Bulach, Hidemasa Izumiya, Khaled AlBassam, Simin Sheikh, Nasser Alrubai'aan, M John Albert
BACKGROUND: Salmonella Enteritidis causes intestinal and extra-intestinal infections, but rarely cutaneous infections. It has never been reported to cause carbuncle (a collection of interconnected furuncles with multiple pustular openings). We report a case of carbuncle due to S. Enteritidis. CASE PRESENTATION: An adult Bangladeshi patient with type 2 diabetes presented with a carbuncle on the left-side of his neck. A pure culture of S. Enteritidis was grown from the pus of the carbuncle...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28868168/validity-of-pulse-pressure-variation-ppv-compared-with-stroke-volume-variation-svv-in-predicting-fluid-responsiveness
#11
Abhishek Rathore, Shalendra Singh, Ritesh Lamsal, Priya Taank, Debashish Paul
OBJECTIVE: Static monitors for assessing the fluid status during major surgeries and in critically ill patients have been gradually replaced by more accurate dynamic monitors in modern-day anaesthesia practice. Pulse pressure variation (PPV) and systolic pressure variation (SPV) are the two commonly used dynamic indices for assessing fluid responsiveness. METHODS: In this prospective observational study, 50 patients undergoing major surgeries were monitored for PPV and SPV: after the induction of anaesthesia and after the administration of 500 mL of isotonic crystalloid bolus...
August 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28859528/the-interpretation-of-static-positional-nystagmus-in-a-balance-clinic
#12
Hanna Jeffery, Matthew Hopkins, Rebecca Anderson, Vignapti Patel, Jennifer Rogers
OBJECTIVE: To review the current criteria for the interpretation of positional nystagmus (PN). DESIGN: Videonystagmography data on PN was collected for 90 patients presenting for balance testing with a history of vertigo or imbalance (excluding those diagnosed with benign paroxysmal positional vertigo). These were compared to normative data from 90 asymptomatic subjects. A literature review was carried out regarding threshold criteria for clinically significant PN...
September 1, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28834774/in-depth-insight-into-facet-dependent-charge-movement-behaviors-and-photo-redox-catalysis-a-case-of-001-and-010-facets-biocl
#13
Min Li, Yihe Zhang, Xiaowei Li, Shixin Yu, Xin Du, Yuxi Guo, Hongwei Huang
A central issue in understanding photo-redox catalysis is the facet-dependent charge movement behaviors that include bulk charge separation, surface charge transfer and interfacial charge migration. To get in-depth insight into these complicated processes steered by different exposing facets, herein BiOCl with exposed (001) and (010) facets engaged as the model are investigated. The BiOCl-(010) and BiOCl-(001) single-crystalline sheets are separately synthesized via hydrothermal and hydrolysis routes. In contrast to BiOCl-(010), BiOCl-(001) demonstrates highly promoted photo-redox performance for H2 generation and degradation of pollutants...
August 16, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28733741/tips-and-tricks-of-splenic-vessel-preservation-during-laparoscopic-distal-pancreatectomy
#14
Claire Goumard, Satoshi Ogiso, Masayuki Okuno, Jason B Fleming, Michael Kim, Ching-Wei D Tzeng, Jean-Nicolas Vauthey, Jeffrey E Lee, Claudius Conrad
BACKGROUND: While a laparoscopic approach can minimize postoperative morbidity in splenic vessel preserving (SVP) distal pancreatectomy (DP), this procedure can be technically challenging. A systematic approach to SVP minimizes the chances of vascular injury and maximizes the chances of successful splenic preservation. This video demonstrates a laparoscopic DP with SVP, highlighting technical tips and tricks that optimize the chances for SVP. PATIENT: The patient is a 14-year-old male with an incidentally discovered pancreatic tail mass...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28666864/spv-locus-aggravates-salmonella-infection-of-zebrafish-adult-by-inducing-th1-th2-shift-to-th2-polarization
#15
Shu-Yan Wu, Li-Dan Wang, Guang-Mei Xu, Si-di Yang, Qi-Feng Deng, Yuan-Yuan Li, Rui Huang
Salmonella enterica serovar typhimurium (S. typhimurium) are facultative intracellular enteric pathogens causing disease with a broad range of hosts. It was known that Th1-type cytokines such as IFN-γ, IL-12, and TNF-α etc. could induce protective immunity against intracellular pathogens, while Th2-type cytokines such as IL-4, IL-10, and IL-13 etc. are proved to help pathogens survive inside hosts and cause severe infection. One of the critical virulence factor attributes to the pathogenesis of S. typhimurium is Salmonella plasmid virulence genes (spv)...
August 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28643091/sylvatic-plague-vaccine-partially-protects-prairie-dogs-cynomys-spp-in-field-trials
#16
Tonie E Rocke, Daniel W Tripp, Robin E Russell, Rachel C Abbott, Katherine L D Richgels, Marc R Matchett, Dean E Biggins, Randall Griebel, Greg Schroeder, Shaun M Grassel, David R Pipkin, Jennifer Cordova, Adam Kavalunas, Brian Maxfield, Jesse Boulerice, Michael W Miller
Sylvatic plague, caused by Yersinia pestis, frequently afflicts prairie dogs (Cynomys spp.), causing population declines and local extirpations. We tested the effectiveness of bait-delivered sylvatic plague vaccine (SPV) in prairie dog colonies on 29 paired placebo and treatment plots (1-59 ha in size; average 16.9 ha) in 7 western states from 2013 to 2015. We compared relative abundance (using catch per unit effort (CPUE) as an index) and apparent survival of prairie dogs on 26 of the 29 paired plots, 12 with confirmed or suspected plague (Y...
September 2017: EcoHealth
https://www.readbyqxmd.com/read/28612010/recombinant-swinepox-virus-expressing-glycoprotein-e2-of-classical-swine-fever-virus-confers-complete-protection-in-pigs-upon-viral-challenge
#17
Huixing Lin, Zhe Ma, Lei Chen, Hongjie Fan
Classical swine fever (CSF) is a highly contagious and serious viral disease that affects the pig industry worldwide. The glycoprotein E2 of the classical swine fever virus (CSFV) can induce neutralizing antibodies, and it is widely used for novel vaccine development. To explore the development of a vaccine against CSFV infections, the gene of glycoprotein E2 was inserted into the swinepox virus (SPV) genome by homologous recombination. The culture titers of rSPV-E2 remained at about 4.3 × 10(6) TCID50 for more than 60 passages in PK15 and swine testis cell lines...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28597886/photoelectrical-properties-of-cds-cdse-core-shell-qds-modified-anatase-tio2-nanowires-and-their-application-for-solar-cells
#18
Qingqing Qiu, Ping Wang, Lingling Xu, Dejun Wang, Yanhong Lin, Tengfeng Xie
Anatase TiO2 nanowire (NW) films modified with inverted type-I CdS/CdSe core/shell structure QDs have been successfully prepared by the post synthesis ligand-assisted technique. Surface photovoltage (SPV), transient photovoltage (TPV) and transient photocurrent (TPC) measurements demonstrate that CdS/CdSe core/shell structure QD-sensitized TiO2 NWs electrodes favor photoexicited electron injection and charge transfer due to the special photo-electronic features of CdS/CdSe core/shell structure QDs. With a polysulfide electrolyte, the maximum conversion efficiency was 2...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28584931/pacing-strategy-during-the-final-stage-of-a-self-paced-formula-see-text-spv-test-does-not-affect-maximal-oxygen-uptake
#19
Nicholas J Hanson, Carter R Reid, Kaitlin M Cornwell, Taylor L Lee, Cory M Scheadler
PURPOSE: Self-paced [Formula: see text] tests (SPVs) have shown to produce maximal oxygen consumption values similar to those from traditional protocols. These tests involve perceptually regulated stages in which subjects are asked to maintain rating of perceived exertion values of 11, 13, 15, 17 and 20 for 2 min each. What is not clear is how the last stage should be paced. The purpose of this study was to compare two different pacing strategies during the final stage. METHODS: Fourteen healthy, recreationally active individuals (11 men, 3 women) participated in a familiarization and two experimental laboratory visits...
June 5, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28571417/transient-surface-photovoltage-measurement-over-12-orders-of-magnitude-in-time
#20
Thomas Dittrich, Steffen Fengler, Michael Franke
The measurement of transient surface photovoltage (SPV) signals in a fixed capacitor arrangement over 12 orders of magnitude in time has been demonstrated for a SnO2:F/TiO2/In2S3 layer system under high vacuum. For this purpose, a high impedance buffer with a bandwidth above 200 MHz and an effective input resistance of 200-700 TΩ has been developed. Fast separation of photo generated charge carriers within ns and very slow relaxation of SPV signals excited with short laser pulses and the measurement of SPV spectra under continuous illumination with a halogen lamp were demonstrated...
May 2017: Review of Scientific Instruments
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