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https://www.readbyqxmd.com/read/28540874/computer-assisted-objective-structured-clinical-examination-versus-objective-structured-clinical-examination-in-assessment-of-dermatology-undergraduate-students
#1
Richa Chaudhary, Chander Grover, S N Bhattacharya, Arun Sharma
BACKGROUND: The assessment of dermatology undergraduates is being done through computer assisted objective structured clinical examination at our institution for the last 4 years. We attempted to compare objective structured clinical examination (OSCE) and computer assisted objective structured clinical examination (CA-OSCE) as assessment tools. AIM: To assess the relative effectiveness of CA-OSCE and OSCE as assessment tools for undergraduate dermatology trainees...
May 22, 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28524327/evaluation-of-a-multi-methods-approach-to-the-collection-and-dissemination-of-feedback-on-osce-performance-in-dental-education
#2
M J Wardman, V C Yorke, J L Hallam
INTRODUCTION: Feedback is an essential part of the learning process, and students expect their feedback to be personalised, meaningful and timely. Objective Structured Clinical Examination (OSCE) assessments allow examiners to observe students carefully over the course of a number of varied station types, across a number of clinical knowledge and skill domains. They therefore present an ideal opportunity to record detailed feedback which allows students to reflect on and improve their performance...
May 19, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28521660/promoting-student-confidence-in-the-osce-process
#3
Abdulla Bedir, Ahamodur Choudhury, Sheikh Naheed Chowdhury
No abstract text is available yet for this article.
2017: Medical Education Online
https://www.readbyqxmd.com/read/28521646/medical-students-review-of-formative-osce-scores-checklists-and-videos-improves-with-student-faculty-debriefing-meetings
#4
Aaron W Bernard, Gabbriel Ceccolini, Richard Feinn, Jennifer Rockfeld, Ilene Rosenberg, Listy Thomas, Todd Cassese
BACKGROUND: Performance feedback is considered essential to clinical skills development. Formative objective structured clinical exams (F-OSCEs) often include immediate feedback by standardized patients. Students can also be provided access to performance metrics including scores, checklists, and video recordings after the F-OSCE to supplement this feedback. How often students choose to review this data and how review impacts future performance has not been documented. OBJECTIVE: We suspect student review of F-OSCE performance data is variable...
2017: Medical Education Online
https://www.readbyqxmd.com/read/28521380/-clinical-practical-examination-in-orthopaedic-teaching-who-is-the-ideal-examiner
#5
Peter Melcher, Andreas Roth, Mohamed Ghanem, Daisy Rotzoll
Background Medical curricula require an increasing amount of integrated clinical practical skills education. German medical faculties are increasingly implementing the OSCE (objective structured clinical examination) to test students' practical as well as communication skills. Teaching and assessment tools for practical skills include simulators and simulated patient scenarios, where peer-assisted teaching (PAT) is applied. Trained student tutors support this process. This study examines for the first time the use of PAT student tutors as examiners in an orthopaedic OSCE unit and the existence of possible differences in rating between faculty and PAT student tutors...
May 18, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28516516/towards-long-term-stable-and-efficient-large-area-organic-solar-cells
#6
Pei-Ting Tsai, Kuan-Chu Lin, Cheng-Yu Wu, Chung-Hung Liao, Man-Chun Lin, Ying Qian Wong, Hsin-Fei Meng, Chih-Yu Chang, Chien-Lung Wang, Yi-Fan Huang, Sheng-Fu Horng, Hsiao-Wen Zan, Yu-Chiang Chao
In this study, we report that long-term stable and efficient organic solar cells (OSCs) can be obtained via the following strategies: (1) combination of rapid-drying blade-coating deposition with an appropriate thermal annealing treatment to obtain an optimized morphology of the active layer; (2) insertion of interfacial layers to optimize the interfacial properties. The resulting devices based on poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)] (PBDTTT-EFT):[6,6]-phenyl C71 butyric acid methyl ester (PC71BM) blend as the active layer exhibits a power conversion efficiency (PCE) up to 9...
May 17, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28513158/molecular-optimization-enables-over-13-efficiency-in-organic-solar-cells
#7
Wenchao Zhao, Sunsun Li, Huifeng Yao, Shaoqing Zhang, Yun Zhang, Bei Yang, Jianhui Hou
A new polymer donor (PBDB-T-SF) and a new small molecule acceptor (IT-4F) for fullerene-free organic solar cells (OSCs) were designed and synthesized. The influences of fluorination on the absorption spectra, molecular energy levels, and charge mobilities of the donor and acceptor were systematically studied. The PBDB-T-SF:IT-4F-based OSC device showed a record high efficiency of 13.1%, and an efficiency of over 12% can be obtained with a thickness of 100-200 nm, suggesting the promise of fullerene-free OSCs in practical applications...
May 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28504512/fully-printable-organic-and-perovskite-solar-cells-with-transfer-printed-flexible-electrodes
#8
Xianqiang Li, Xiaohong Tang, Tao Ye, Dan Wu, Hong Wang, Xizu Wang
The perovskite solar cells (PSCs) and organic solar cells (OSCs) with high performance were fabricated with transfer-printed top metal electrodes. We have demonstrated that PSCs and OSCs with the top Au electrodes fabricated by using the transfer printing method have comparable or better performance than the devices with the top Au electrodes fabricated by using the conventional thermal evaporation method. The highest PCE of the PSCs and OSCs with the top electrodes fabricated using the transfer printing method achieved 13...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28503180/transcriptomic-comparison-reveals-candidate-genes-for-triterpenoid-biosynthesis-in-two-closely-related-ilex-species
#9
Lingling Wen, Xiaoyun Yun, Xiasheng Zheng, Hui Xu, Ruoting Zhan, Weiwen Chen, Yaping Xu, Ye Chen, Jie Zhang
Native to Southern China, Ilex pubescens and Ilex asprella are frequently used in traditional Chinese medicine. Both of them produce a large variety of ursane-type triterpenoid saponins, which have been demonstrated to have different pharmacological effects. However, little is known about their biosynthesis. In this study, transcriptomic analysis of I. pubescens and comparison with its closely related specie I. asprella were carried out to identify potential genes involved in triterpenoid saponin biosynthesis...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28497691/fine-tuned-photoactive-and-interconnection-layers-for-achieving-over-13-efficiency-in-a-fullerene-free-tandem-organic-solar-cell
#10
Yong Cui, Huifeng Yao, Bowei Gao, Yunpeng Qin, Shaoqing Zhang, Bei Yang, Chang He, Bowei Xu, Jianhui Hou
Fabricating organic solar cells (OSCs) with a tandem structure has been considered an effective method to overcome the limited light absorption spectra of organic photovoltaic materials. Currently, the most efficient tandem OSCs are fabricated by adopting fullerene-derivatives as acceptors. Here, we design a new NF-acceptor with an E(opt)g of 1.68 eV for the front sub-cells and optimize the phase separation morphology of a fullerene-free active layer with an E(opt)g of 1.36 eV to fabricate the rear sub-cell...
May 12, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28497491/male-child-with-somatic-mosaic-osteopathia-striata-with-cranial-sclerosis-caused-by-a-novel-pathogenic-amer1-frameshift-mutation
#11
Jennifer Hague, Isabelle Delon, Kim Brugger, Howard Martin, Leanne Sparnon, Ingrid Simonic, Stephen Abbs, Soo-Mi Park
Osteopathia striata with cranial sclerosis (OSCS; OMIM #300373) is a rare X-linked dominant condition caused by mutations in the AMER1 gene (also known as WTX or FAM123B). It is a condition which usually affects females in whom the clinical phenotype can be extremely variable. Conversely affected males typically die in utero or during the neonatal period [Perdu et al. (); Clinical Genetics 80: 383-388; Vasiljevic et al. (); Prenatal Diagnosis 35: 302-304]. There have been a small number of reported cases of surviving males, including three patients who are somatic mosaic for the condition [Chénier, Noor, Dupuis, Stavropoulos, & Mendoza-Londono, (); American Journal of Medical Genetics Part A 158A: 2946-2952; Holman et al...
May 12, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28488010/neuroprotective-effect-of-oxysophocarpine-by-modulation-of-mapk-pathway-in-rat-hippocampal-neurons-subject-to-oxygen-glucose-deprivation-and-reperfusion
#12
Peng Zhao, Ren-Yuan Chang, Ning Liu, Jing Wang, Ru Zhou, Xue Qi, Yue Liu, Lin Ma, Yang Niu, Tao Sun, Yu-Xiang Li, Yan-Ping He, Jian-Qiang Yu
Oxysophocarpine (OSC), an alkaloid isolated from Sophora flavescens Ait, has been traditionally used as a medicinal agent based on the observed pharmacological effects. In this study, the direct effect of OSC against neuronal injuries induced by oxygen and glucose deprivation (OGD) in neonatal rat primary-cultured hippocampal neurons and its mechanisms were investigated. Cultured hippocampal neurons, which were exposed to OGD for 2 h followed by a 24 h reoxygenation, were used as an in vitro model of ischemia and reperfusion...
May 9, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28487454/objectivity-in-subjectivity-do-students-self-and-peer-assessments-correlate-with-examiners-subjective-and-objective-assessment-in-clinical-skills-a-prospective-study
#13
A'man Talal Inayah, Lucman A Anwer, Mohammad Abrar Shareef, Akram Nurhussen, Haifa Mazen Alkabbani, Alhanouf A Alzahrani, Adam Subait Obad, Muhammad Zafar, Nasir Ali Afsar
OBJECTIVES: The qualitative subjective assessment has been exercised either by self-reflection (self-assessment (SA)) or by an observer (peer assessment (PA)) and is considered to play an important role in students' development. The objectivity of PA and SA by students as well as those by faculty examiners has remained debated. This matters most when it comes to a high-stakes examination. We explored the degree of objectivity in PA, SA, as well as the global rating by examiners being Examiners' Subjective Assessment (ESA) compared with Objective Structured Clinical Examinations (OSCE)...
May 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28485102/a-web-based-peer-feedback-tool-for-physical-examination
#14
Ryan Luther, Lisa Richardson
BACKGROUND: Medical students do not have many formal opportunities to practise physical examinations during their pre-clerkship years. Consequently, they often practise their examination skills with peers outside of formal teaching sessions. There are also few opportunities for observation and feedback on their skills in this area. CONTEXT: The undergraduate medical programme at the University of Toronto is a 4-year programme where students learn clinical skills in the first 2 years prior to beginning clinical rotations...
May 9, 2017: Clinical Teacher
https://www.readbyqxmd.com/read/28479228/design-strategies-of-oxidosqualene-cyclase-inhibitors-targeting-the-sterol-biosynthetic-pathway
#15
REVIEW
Vitor Won-Held Rabelo, Nelilma Correia Romeiro, Paula Alvarez Abreu
Targeting the sterol biosynthesis pathway has been explored for the development of new bioactive compounds. Among the enzymes of this pathway, oxidosqualene cyclase (OSC) which catalyzes lanosterol cyclization from 2,3-oxidosqualene has emerged as an attractive target. In this work, we reviewed the most promising OSC inhibitors from different organisms and their potential for the development of new antiparasitic, antifungal, hypocholesterolemic and anticancer drugs. Different strategies have been adopted for the discovery of new OSC inhibitors, such as structural modifications of the natural substrate or the reaction intermediates, the use of the enzyme's structural information to discover compounds with novel chemotypes, modifications of known inhibitors and the use of molecular modeling techniques such as docking and virtual screening to search for new inhibitors...
May 4, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28479071/effectiveness-of-a-1-hour-extended-focused-assessment-with-sonography-in-trauma-session-in-the-medical-student-surgery-clerkship
#16
Cassandra Krause, Reed Krause, Raymond Krause, Nephtali Gomez, Zan Jafry, Vi Am Dinh
OBJECTIVE: To demonstrate the effectiveness of incorporating 1 hour of ultrasound training on the extended focused assessment with sonography in trauma (eFAST) into the year-3 medical student surgical clerkship. DESIGN: A prospective cohort study where participants served as self-controls. One hour of instruction in the eFAST examination, along with 3 required observed examinations, was incorporated into the year-3 surgery clerkship. Effectiveness of the training was evaluated by a preliminary and posttraining assessment...
May 4, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28476520/distinctive-metabolomic-fingerprint-in-scleroderma-patients-with-pulmonary-arterial-hypertension
#17
Martino Deidda, Cristina Piras, Christian Cadeddu Dessalvi, Emanuela Locci, Luigi Barberini, Susanne Orofino, Mario Musu, Mario Nicola Mura, Paolo Emilio Manconi, Gabriele Finco, Luigi Atzori, Giuseppe Mercuro
BACKGROUND: Pulmonary arterial hypertension (PAH) in systemic sclerosis (SS) identifies a poor prognosis subset of patients. Recent studies suggested a "metabolic theory" on the development of pulmonary arterial hypertension. On this basis we performed a metabolomic study in order to evaluate whether differences in pulmonary arterial blood metabolites were identifiable in SS patients with increased pulmonary vascular resistance (PVR). METHODS: We studied 18 SS patients (age 58...
April 19, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28474084/-application-of-objective-structured-clinical-examination-system-in-pediatric-dental-education-for-8-year-program-and-5-year-program-students
#18
Lu-Lu Wang, Yang Jiang, Zhi-Fei Zhou, Shuai Yuan, Xiao-Jing Wang
PURPOSE: To explore a more comprehensive and objective method for dental students examination, and improve the quality of pediatric dental education. METHODS: Fifteen 8-year-program students and 30 5-year-program dental students from School of Stomatology, the Fourth Military Medical University were enrolled in this study. Objective structured clinical examination (OSCE), traditional diadactic test and questionnaires were carried out in all students. The scores of the two testing methods between students in 2 groups were compared using SPSS 11...
February 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28466960/two-well-miscible-acceptors-work-as-one-for-efficient-fullerene-free-organic-solar-cells
#19
Runnan Yu, Shaoqing Zhang, Huifeng Yao, Bing Guo, Sunsun Li, Hao Zhang, Maojie Zhang, Jianhui Hou
High-performance ternary organic solar cells are fabricated by using a wide-bandgap polymer donor (bithienyl-benzodithiophene-alt-fluorobenzotriazole copolymer, J52) and two well-miscible nonfullerene acceptors, methyl-modified nonfullerene acceptor (IT-M) and 2,2'-((2Z,2'Z)-((5,5'-(4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydros-indaceno[1,2-b:5,6-b']dithiophene-2,7-diyl)bis(4-((2-ethylhexyl)oxy)thiophene-5,2-diyl))bis(methanylylidene))bis(3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (IEICO). The two acceptors with complementary absorption spectra and similar lowest unoccupied molecular orbital levels show excellent compatibility in the blend due to their very similar chemical structures...
May 3, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28464857/communication-skills-of-medical-students-during-the-osce-gender-specific-differences-in-a-longitudinal-trend-study
#20
Joachim Graf, Robert Smolka, Elisabeth Simoes, Stephan Zipfel, Florian Junne, Friederike Holderried, Annette Wosnik, Anne M Doherty, Karina Menzel, Anne Herrmann-Werner
BACKGROUND: Communication skills are essential in a patient-centred health service and therefore in medical teaching. Although significant differences in communication behaviour of male and female students are known, gender differences in the performance of students are still under-reported. The aim of this study was to analyse gender differences in communication skills of medical students in the context of an OSCE exam (OSCE = Objective Structured Clinical Examination). METHODS: In a longitudinal trend study based on seven semester-cohorts, it was analysed if there are gender differences in medical students' communication skills...
May 2, 2017: BMC Medical Education
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