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https://www.readbyqxmd.com/read/28211671/organic-solar-cells-based-on-wo2-72-nanowire-anode-buffer-layer-with-enhanced-power-conversion-efficiency-and-ambient-stability
#1
Longzhen You, Bin Liu, Tao Liu, Bingbing Fan, Yunhao Cai, Lin Guo, Yanming Sun
Tungsten oxide as an alternative to conventional acidic PEDOT:PSS has attracted much attention in organic solar cells (OSCs). However, the vacuum-processed WO3 layer and high temperature sol-gel hydrolyzed WOX are incompatible with large-scale manufacturing of OSCs. Here, we report for the first time that a specific tungsten oxide WO2.72 (W18O49) nanowire can function well as the anode buffer layer. The nw-WO2.72 film exhibits a high optical transparency. The power conversion efficiency (PCE) of OSCs based on three typical polymer active layers PTB7:PC71BM, PTB7-Th:PC71BM, and PDBT-T1:PC71BM with nw-WO2...
February 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28209914/clinical-examination-in-the-osce-era-are-we-maintaining-the-balance-between-os-and-ce
#2
EDITORIAL
Alexandre Lafleur, Jimmie Leppink, Luc Côté
No abstract text is available yet for this article.
February 16, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28202851/expression-of-inorganic-pyrophosphatase-ppa1-correlates-with-poor-prognosis-of-epithelial-ovarian-cancer
#3
Hui Li, Ning Xiao, Zongpeng Li, Qin Wang
Ovarian serous carcinoma (OSC) is the most common epithelial ovarian cancer. Inorganic pyrophosphatase (PPA1) catalyzes the hydrolysis of pyrophosphate to inorganic phosphate, thereby providing extra energy for metabolism. The significance of PPA1 in the prognosis of OSC has not been investigated. Our study aimed to explore the expression and predictive role of PPA1 in OSC progression. We screened the expression of PPA1 protein in OSC tissues from 139 patients by immunohistochemistry, and evaluated its correlation with clinicopathological characteristics...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28196634/objective-domain-specific-her2-measurement-in-uterine-and-ovarian-serous-carcinomas-and-its-clinical-significance
#4
Daniel E Carvajal-Hausdorf, Kurt A Schalper, Yalai Bai, Jonathan Black, Alessandro D Santin, David L Rimm
INTRODUCTION: HER2 overexpression/amplification is identified in up to 40% of uterine serous carcinomas (USC) and 10% of ovarian serous carcinomas (OSC). However, clinical trials using various HER2-targeted agents failed to show significant responses. FDA-approved HER2 assays target only the protein's intracellular domain (ICD) and not the extracellular domain (ECD). Previous quantitative studies in breast cancer by our group have shown that ICD of HER2 is expressed in some cases that do not express the HER2 ECD...
February 11, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28194958/compound-specific-sulfur-isotope-analysis-of-petroleum-gases
#5
Ward Said-Ahmad, Kenneth Wong, Monaca Mcnall, Lubna Shawar, Tracey Jacksier, Courtney Turich, Artur Stankiewicz, Alon Amrani
We describe a simple, sensitive, and robust method for sulfur isotope ratio ((34)S/(32)S) analysis of ppm-level organic sulfur compounds (OSCs) in the presence of percent-level H2S. The method uses a gas chromatograph (GC) coupled with a multicollector inductively coupled plasma mass spectrometer (MC-ICPMS). The GC, equipped with a gas inlet and a valve that transfers the H2S to a thermal conductivity detector (TCD), enables a precise heart cut and prevents the saturation of the MC-ICPMS. The sensitivity and accuracy of the method are better than 0...
February 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28194155/functional-characterization-of-cyp716-family-p450-enzymes-in-triterpenoid-biosynthesis-in-tomato
#6
Shuhei Yasumoto, Hikaru Seki, Yuko Shimizu, Ery O Fukushima, Toshiya Muranaka
Triterpenoids are a group of structurally diverse specialized metabolites that frequently show useful bioactivities. These chemicals are biosynthesized from the common precursor 2,3-oxidosqualene in plants. The carbon skeletons produced by oxidosqualene cyclase (OSC) are usually modified by cytochrome P450 monooxygenases (P450s) and UDP-dependent glycosyltransferases. These biosynthetic enzymes contribute to the structural diversification of plant triterpenoids. Until now, many P450 enzymes have been characterized as triterpenoid oxidases...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28178912/do-medical-students-receive-training-in-correct-use-of-personal-protective-equipment
#7
Amrita John, Myreen E Tomas, Aditya Hari, Brigid M Wilson, Curtis J Donskey
BACKGROUND: Healthcare personnel often use incorrect technique for donning and doffing of personal protective equipment (PPE). OBJECTIVE: We tested the hypothesis that medical students receive insufficient training on correct methods for donning and doffing PPE. METHODS: We conducted a cross-sectional survey of medical students on clinical rotations at two teaching hospitals to determine the type of training they received in PPE technique...
2017: Medical Education Online
https://www.readbyqxmd.com/read/28177858/evaluation-of-the-veterans-health-administration-s-specialty-care-transformational-initiatives-to-promote-patient-centered-delivery-of-specialty-care-a-mixed-methods-approach
#8
Katherine M Williams, Susan Kirsh, David Aron, David Au, Christian Helfrich, Anne Lambert-Kerzner, Julie Lowery, Catherine Battaglia, Glenn D Graham, Michael Doukas, Rajiv Jain, P Michael Ho
INTRODUCTION: Veteran's Affairs Office of Specialty Care (OSC) launched four national initiatives (Electronic-Consults [e-Consults], Specialty Care Access Networks-Extension for Community Healthcare Outcomes [SCAN-ECHO], Mini-Residencies, and Specialty Care Neighborhood) to improve specialty care delivery and funded a center to evaluate the initiatives. METHODS: The evaluation, guided by two implementation frameworks, provides formative (administrator/provider interviews and surveys) and summative data (quantitative data on patterns of use) about the initiatives to OSC...
February 8, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28164429/rethinking-empathy-decline-results-from-an-osce
#9
Valerie Chan Teng, Cathina Nguyen, Karen Thomson Hall, Tracy Rydel, Amelia Sattler, Erika Schillinger, Eva Weinlander, Steven Lin
BACKGROUND: The phenomenon of empathy decline among medical students during training is widely accepted, with evidence based largely on studies using self-administered instruments. Recently, researchers have called into question this phenomenon, in light of new findings that suggest a discrepancy between self-administered empathy scores and observed empathic behaviours: for example, during objective structured clinical examinations (OSCEs). Our objective was to compare observed empathy among medical students in different clerkship years using an OSCE...
February 6, 2017: Clinical Teacher
https://www.readbyqxmd.com/read/28161396/the-method-used-to-set-the-pass-mark-in-an-objective-structured-clinical-examination-defines-the-performance-of-candidates-for-certification-as-rheumatologists
#10
Virginia Pascual-Ramos, Gabriel Medrano-Ramírez, Eunice Solís-Vallejo, Ana Guilaisne Bernard-Medina, Diana Elsa Flores-Alvarado, Margarita Portela-Hernández, María Del Rocío Maldonado-Velázquez, Luis Javier Jara-Quezada, Luis Manuel Amezcua-Guerra, Judith López-Zepeda, Miguel Ángel Saavedra, César Alejandro Arce-Salinas
BACKGROUND: The Mexican Accreditation Council for Rheumatology certifies trainees (TR) on an annual basis using both a multiple-choice question (MCQ) test and an objective structured clinical examination (OSCE). For 2013 and 2014, the OSCE pass mark (PM) was set by criterion referencing as ≥6 (CPM), whereas overall rating of borderline performance method (BPM) was added for 2015 and 2016 accreditations. We compared OSCE TR performance according to CPM and BPM, and examined whether correlations between MCQ and OSCE were affected by PM...
February 1, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28154446/reaching-consensus-on-measuring-professional-behaviour-in-physical-therapy-objective-structured-clinical-examinations
#11
Robyn Davies, Cindy Ellerton, Cathy Evans
Purpose: We determined which professional behaviours (PBs) are important and feasible to measure in an objective structured clinical examination (OSCE) intended to assess the hands-on skills and knowledge of students in a Canadian physical therapy (PT) program. Methods: We used a modified Delphi technique to identify the criteria required to assess PBs in PT students during an OSCE. We conducted a focus group to better understand the results of the modified Delphi process. Results: Experienced local OSCE examiners participated in the modified Delphi panel, which consisted of two rounds of surveys: round 1 (n=12) and round 2 (n=10)...
2017: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/28153008/correlation-of-blood-bone-turnover-biomarkers-and-wnt-signaling-antagonists-with-as-dish-opll-and-oyl
#12
Chi-Chien Niu, Song-Shu Lin, Li-Jen Yuan, Lih-Huei Chen, Chuen-Yung Yang, An-Ni Chung, Meng-Ling Lu, Tsung-Ting Tsai, Po-Liang Lai, Wen-Jer Chen
BACKGROUND: Wnt signaling plays an important role in development and maintenance of many organs and tissues. The most-studied secreted Wnt inhibitors are sclerostin (SOST), Dickkopf-related protein 1 (DKK-1), and secreted frizzled related protein 1 (SFRP-1) which play important roles in bone turnover. The present study investigated the relationship between serum Wnt inhibitors and diseases with excessive ossification structures, such as ossification of posterior longitudinal ligament (OPLL), ankylosing spondylitis (AS), diffuse idiopathic skeletal hyperostosis (DISH), and ossification of yellow ligament (OYL)...
February 2, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28145632/design-synthesis-and-photovoltaic-characterization-of-a-small-molecular-acceptor-with-an-ultra-narrow-band-gap
#13
Huifeng Yao, Yong Cui, Runnan Yu, Bowei Gao, Hao Zhang, Jianhui Hou
The design of narrow band gap (NBG) donors or acceptors and their application in organic solar cells (OSCs) are of great importance in the conversion of solar photons to electrons. Limited by the inevitable energy loss from the optical band gap of the photovoltaic material to the open-circuit voltage of the OSC device, the improvement of the power conversion efficiency (PCE) of NBG-based OSCs faces great challenges. A novel acceptor-donor-acceptor structured non-fullerene acceptor is reported with an ultra-narrow band gap of 1...
February 1, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28139274/examiner-characteristics-and-interrater-reliability-in-a-communication-osce
#14
Achim Mortsiefer, André Karger, Thomas Rotthoff, Bianca Raski, Michael Pentzek
OBJECTIVE: To identify inter-individual examiner factors associated with interrater reliability in a summative communication OSCE in the 4th study year. METHODS: The OSCE consists of 4 stations assessed with a 4-item 5-point global rating instrument. A bivariate secondary analysis of interrater reliability in relation to 4 examiner factors (gender, profession, OSCE experience, examiner training) was conducted. Intraclass correlation coefficients (ICC) were calculated and compared between examiner dyads of different similarity...
January 24, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28134777/the-anti-inflammatory-and-vasodilating-effects-of-three-selected-dietary-organic-sulfur-compounds-from-allium-species
#15
Chin-Chen Chu, Wen-Shiann Wu, Ja-Ping Shieh, Heuy-Ling Chu, Chia-Pu Lee, Pin-Der Duh
The anti-inflammatory and vasodilating effects of three selected dietary organic sulfur compounds (OSC), including diallyl disulfide (DADS), dimethyl disulfide (DMDS), and propyl disulfide (PDS), from Allium species were investigated. In the anti-inflammatory activity assay, the three OSC demonstrated significant inhibition of nitric oxide (NO) and prostaglandin E₂ (PGE₂) production in LPS-induced RAW 264.7 cells. The expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX-2) in activated RAW 264...
January 26, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28131800/changing-objective-structured-clinical-examinations-stations-at-lunchtime-during-all-day-postgraduate-surgery-examinations-improves-examiner-morale-and-stress
#16
Peter A Brennan, Duncan S Scrimgeour, Sheena Patel, Roshnee Patel, Gareth Griffiths, David T Croke, Lee Smith, Richard Arnett
BACKGROUND: Human factors are important causes of error, but little is known about their possible effect during objective structured clinical examinations (OSCE). We have previously identified stress and pressure in OSCE examiners in the postgraduate intercollegiate Membership of the Royal College of Surgeons (MRCS) examination. After modifying examination delivery by changing OSCE stations at lunchtime with no demonstrable effect on candidate outcome, we resurveyed examiners to ascertain whether examiner experience was improved...
January 25, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28128800/-diagnostic-and-formative-assessment-of-competencies-at-the-beginning-of-undergraduate-medical-internship
#17
Adrián Martínez-González, Alberto Lifshitz-Guinzberg, Juan Andrés Trejo-Mejía, Uri Torruco-García, Teresa I Fortoul-van der Goes, Fernando Flores-Hernández, Jorge Peña-Balderas, Adrián Israel Martínez-Franco, Alejandro Hernández-Nava, Diana Elena-González, Melchor Sánchez-Mendiola
INTRODUCTION: Research on diagnostic and formative assessment competencies during undergraduate medical training is scarce in Latin America. OBJECTIVE: To assess the level of clinical competence of students at the beginning of their medical internship in a new curriculum. METHODS: This was an observational cross-sectional study in UNAM Faculty of Medicine students in Mexico City: a formative assessment of the second class of Curriculum 2010 students as part of the integral evaluation of the program...
January 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28127955/high-performance-ternary-organic-solar-cell-enabled-by-a-thick-active-layer-containing-a-liquid-crystalline-small-molecule-donor
#18
Guichuan Zhang, Kai Zhang, Qingwu Yin, Xiao-Fang Jiang, Zaiyu Wang, Jingming Xin, Wei Ma, He Yan, Fei Huang, Yong Cao
Ternary organic solar cells (OSCs) have attracted much research attention in the past few years, as ternary organic blends can broaden the absorption range of OSCs without the use of complicated tandem cell structures. Despite their broadened absorption range, the light harvesting capability of ternary OSCs is still limited because most ternary OSCs use thin active layers of about 100 nm in thickness, which is not sufficient to absorb all photons in their spectral range and may also cause problems for future roll-to-roll mass production that requires thick active layers...
February 6, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28127127/factors-associated-with-performance-in-an-internal-medicine-clerkship
#19
Colleen Colbert, Tresa McNeal, Maybelline Lezama, Martha Chandler, Lisa Forrester, Austin Metting, Curtis Mirkes, Holly Van Cleave, Sonny Win, John D Myers
The purpose of this retrospective study was to examine the relationship between demographic and educational variables and student performance on an internal medicine (IM) clerkship in order to target areas for educational intervention and potential early remediation. This study examined data associated with third-year medical student performance (N = 505) during the IM clerkship at Baylor Scott & White, Temple/Texas A&M Health Science Center College of Medicine from 2005 to 2011. Multiple regression analysis (N = 341) showed that a model containing the following variables was significantly associated with scores on the National Board of Medical Examiners (NBME) subject exam, accounting for 46...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28124016/effectiveness-of-early-clinical-exposure-in-learning-respiratory-physiology-among-the-newly-entrant-mbbs-students
#20
Piyali DAS, Subhradev Biswas, Ramji Singh, Sanhita Mukherjee, Sharmistha Ghoshal, Debasis Pramanik
INTRODUCTION: Early Clinical Exposure has been conceptualized to orient medical students towards actual clinical scenario and help them correlate their theoretical knowledge with real life situations in early years of MBBS courses. In the present study we explored the outcome of early clinical exposure in the context of basic science topics (Physiology) in fresh MBBS entrants and compared their performance with a conventionally taught control group. METHODS: One hundred fifty voluntary students of 1st year MBBS (2015-16) batch consisted the sample of this study...
January 2017: Journal of Advances in Medical Education & Professionalism
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