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https://www.readbyqxmd.com/read/28731698/regiocontrolled-electrosynthesis-of-60-fullerene-bisadducts-photovoltaic-performance-and-crystal-structures-of-c60-o-quinodimethane-bisadducts
#1
Zong-Jun Li, Sisi Wang, Shu-Hui Li, Tao Sun, Wei-Wei Yang, Kazutaka Shoyama, Takafumi Nakagawa, Il Jeon, Xiaoniu Yang, Yutaka Matsuo, Xiang Gao
C60 o-quinodimethane bisadducts (C60(QM)2) are promising electron acceptors for the bulk heterojuction (BHJ) organic solar cells (OSCs). However, previous production of C60(QM)2 often resulted in excessive regioisomers, which were difficult to purify and might consequently obscure the structure-performance study of the organofullerene acceptors. Herein, the electrosynthesis of C60(QM)2 is reported. The reaction exhibits a strong regiocontrol with generation of less regioisomers. Single regioisomers of cis-2, trans-3 and e C60(QM)2 are obtained, and the structures are solved with single crystal X-ray diffraction...
July 21, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28720423/undergraduate-clinical-teaching-in-orthopedic-surgery-a-randomized-control-trial-comparing-the-effect-of-case-based-teaching-and-bedside-teaching-on-musculoskeletal-osce-performance
#2
Martin Kelly, Iain Feeley, Fiona Boland, John M O'Byrne
INTRODUCTION: Musculoskeletal (MSK) complaints are the second most common reason for a hospital outpatient appointment in the US, and account for 19.5% of general practice consultations. Previous studies have shown that passive teaching in medical school does not imbue students with an adequate degree of confidence in MSK evaluation. The aim of this study was to conduct a randomized control trial to compare the effect of the gold standard small group tutorial of bedside teaching against case-based teaching (CBT) in relation to orthopedic surgery in medical students...
July 15, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28718345/the-value-of-quality-feedback-in-formative-osces
#3
Adnan Ahmed, Mohammad Alwaheedy, Ahamodur Choudhury, Sheikh Naheed Chowdhury, Maaz Khan, Basir Kunduzi, Abdul Rahyead
No abstract text is available yet for this article.
2017: Medical Education Online
https://www.readbyqxmd.com/read/28714761/gamma-irradiation-of-medicinally-important-plants-and-the-enhancement-of-secondary-metabolite-production
#4
P Vivek Vardhan, Lata I Shukla
PURPOSE: The profitable production of some important plant-based secondary metabolites (ginsenosides, saponins, camptothecin, shikonins etc.) in vitro by gamma irradiation is a current area of interest. We reviewed different types of secondary metabolites, their mode of synthesis and effect of γ-radiation on their yield for different plants, organs and in vitro cultures (callus, suspension, hairy root). Special effort has been made to review the biochemical mechanisms underlying the increase in secondary metabolites...
July 17, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28710558/pathway-engineering-for-the-production-of-%C3%AE-amyrin-and-cycloartenol-in-escherichia-coli-a-method-to-biosynthesize-plant-derived-triterpene-skeletons-in-e-coli
#5
Miho Takemura, Rie Tanaka, Norihiko Misawa
Cycloartenol is biosynthetically the first sterol skeleton, which is metabolized to phytosterols such as β-sitosterol and stigmasterol. β-Amyrin is the most commonly occurring aglycone skeleton for oleanane-type saponins such as glycyrrhizin and saikosaponins. It has been regarded that these cyclic triterpenes are unable to be produced in Escherichia coli, while no reports are available on their production with E. coli. Here, we describe a method to synthesize triterpene skeletons from higher plants, including cycloartenol and β-amyrin...
July 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28707638/mimicking-rashes-use-of-moulage-technique-in-undergraduate-assessment-at-the-aga-khan-university-karachi
#6
Saniya Raghib Sabzwari, Azam Afzal, Kashmira Nanji
BACKGROUND: The use of simulated patients in student assessment is supported by the Best Evidence Medical Education and U.S. Agency for Healthcare Research and Quality, and it provides a safe and effective alternative to real patients in many situations. To assess the validity and feasibility of moulage technique-where a cosmetically constructed rash is used on simulated patients-two dermatologic rashes were developed using moulage simulation on standardized patients at Aga Khan University Hospital for 3rd year medical summative Objective Structured Clinical Examination (OSCE)...
January 2017: Education for Health: Change in Training & Practice
https://www.readbyqxmd.com/read/28705402/-development-of-an-objective-structured-clinical-examination-osce-for-evaluating-clinical-competence-in-vascular-medicine
#7
J Risse, T Busato, V Dufrost, M Perri, S Zuily, D Wahl
OBJECTIVES: Vascular medicine is now a clinical specialty in France. During their studies, students will acquire clinical reasoning in addition to technical skills. An Objective Structured Clinical Examination (OSCE) is considered as the gold standard for evaluating clinical competence. Our main objective was to evaluate the feasibility and acceptability of OSCE for the evaluation of students, secondarily their performance. METHODS: Three representative clinical cases of the specialty were developed...
May 2017: J Med Vasc
https://www.readbyqxmd.com/read/28693486/performance-of-international-medical-students-in-psychosocial-medicine
#8
D Huhn, J Lauter, D Roesch Ely, E Koch, A Möltner, W Herzog, F Resch, S C Herpertz, C Nikendei
BACKGROUND: Particularly at the beginning of their studies, international medical students face a number of language-related, social and intercultural challenges. Thus, they perform poorer than their local counterparts in written and oral examinations as well as in Objective Structured Clinical Examinations (OSCEs) in the fields of internal medicine and surgery. It is still unknown how international students perform in an OSCE in the field of psychosocial medicine compared to their local fellow students...
July 10, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28692752/high-efficiency-nonfullerene-organic-solar-cells-with-a-parallel-tandem-configuration
#9
Lijian Zuo, Jiangsheng Yu, Xueliang Shi, Francis Lin, Weihua Tang, Alex K-Y Jen
In this work, a highly efficient parallel connected tandem solar cell utilizing a nonfullerene acceptor is demonstrated. Guided by optical simulation, each of the active layer thicknesses of subcells are tuned to maximize its light trapping without spending intense effort to match photocurrent. Interestingly, a strong optical microcavity with dual oscillation centers is formed in a back subcell, which further enhances light absorption. The parallel tandem device shows an improved photon-to-electron response over the range between 450 and 800 nm, and a high short-circuit current density (J SC ) of 17...
July 10, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28689521/predictive-validity-of-family-medicine-resident-s-performance-at-induction-with-their-future-performance-during-residency
#10
Marie Andrades, Naveed Yousuf, Kiran Abdul Sattar, Samreen Kausar
OBJECTIVE: To determine the predictive validity of induction assessment scores of family medicine residency program for performance in final year of residency. STUDY DESIGN: Psychometric (predictive-validity) study. PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, from 2008 to 2014. METHODOLOGY: All family medicine residents were evaluated. Family Medicine Residency induction assessment scores were used as independent predictor variables, whereas resident assessment scores during the final year residency program were used as dependent or outcome variables...
June 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28686959/the-effectiveness-of-a-simulated-scenario-to-teach-nursing-students-how-to-perform-a-bed-bath-a-randomized-clinical-trial
#11
Renata Pinto Ribeiro Miranda, Érika de Cássia Lopes Chaves, Rogério Silva Lima, Cristiane Giffoni Braga, Ivandira Anselmo Ribeiro Simões, Silvana Maria Coelho Leite Fava, Denise Hollanda Iunes
BACKGROUND: Simulation allows students to develop several skills during a bed bath that are difficult to teach only in traditional classroom lectures, such as problem-solving, student interactions with the simulator (patient), reasoning in clinical evaluations, evaluation of responses to interventions, teamwork, communication, security and privacy. OBJECTIVES: This study aimed to evaluate the effectiveness of a simulated bed bath scenario on improving cognitive knowledge, practical performance and satisfaction among nursing students...
June 27, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28683169/emerging-semitransparent-solar-cells-materials-and-device-design
#12
REVIEW
Qidong Tai, Feng Yan
Semitransparent solar cells can provide not only efficient power-generation but also appealing images and show promising applications in building integrated photovoltaics, wearable electronics, photovoltaic vehicles and so forth in the future. Such devices have been successfully realized by incorporating transparent electrodes in new generation low-cost solar cells, including organic solar cells (OSCs), dye-sensitized solar cells (DSCs) and organometal halide perovskite solar cells (PSCs). In this review, the advances in the preparation of semitransparent OSCs, DSCs, and PSCs are summarized, focusing on the top transparent electrode materials and device designs, which are all crucial to the performance of these devices...
July 6, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28675095/development-and-pilot-testing-of-an-objective-structured-clinical-examination-for-obstructive-sleep-apnea
#13
Nasir I Bhatti, Muhammad Abbas Abid, C Matthew Stewart, Carol Fleishman, Niall Jefferson, Stacey L Ishman
Objective Our aim was (1) to develop an objective structured clinical examination (OSCE) for obstructive sleep apnea (OSA) and (2) to test the reliability and evaluate the feasibility of this OSCE while assessing residents' clinical skills in multiple core competencies via the standardized patient methodology. Study Design Development of assessment tool. Setting Johns Hopkins Medicine Simulation Center. Subjects and Methods Residents of the Department of Otolaryngology-Head and Neck Surgery at The Johns Hopkins University School of Medicine were invited to participate...
June 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28670976/a-novel-approach-to-assess-clinical-competence-of-postgraduate-year-1-surgery-residents
#14
Xin Qi, Lian Ding, Wei Zhai, Qiang Li, Yan Li, Haichao Li, Bing Wen
BACKGROUND: An increased demand for accountability and transparency in medicine have initiated a shift toward a more objective and standardized approach for postgraduate medical training. OBJECTIVE: To develop and evaluate an objective method to assess clinical competence of postgraduate year 1 surgery residents. DESIGN: Thirty-one postgraduate year 1 surgery residents, who had been trained in the Surgical School of Peking University First Hospital for one year, participated in an objective structured clinical examination as a final assessment of their clinical competence...
2017: Medical Education Online
https://www.readbyqxmd.com/read/28662248/surgical-efficiency-of-anterior-cruciate-ligament-reconstruction-in-outpatient-surgical-center-versus-hospital-operating-room
#15
Nathan C Patrick, Christopher A Kowalski, William L Hennrikus
Anterior cruciate ligament (ACL) reconstructions are complex orthopedic procedures in which a proficient team is of vital importance. Outpatient surgical centers (OSCs) often provide orthopedic-specific teams; however, hospital operating rooms (ORs) commonly rotate staff. The purpose of this study was to compare the efficiency of pediatric ACL reconstructions between a surgical center and a hospital OR owned and directed by a single institution. Cases examined involved pediatric patients, aged 12 to 18 years (mean age, 15...
June 29, 2017: Orthopedics
https://www.readbyqxmd.com/read/28634845/histomorphometric-and-immunohistochemical-evaluation-of-collagen-containing-xenogeneic-bone-blocks-used-for-lateral-bone-augmentation-in-staged-implant-placement
#16
Alberto Ortiz-Vigón, Sergio Martinez-Villa, Iñaki Suarez, Fabio Vignoletti, Mariano Sanz
BACKGROUND: The osteoconductive properties of collagen containing xenogeneic bone blocks (CCXBB) remain unclear. The aim of this prospective single-arm clinical study was to assess the histological outcomes of CCXBB blocks used as bone replacement grafts for lateral bone augmentation procedures. METHODS: In 15 patients with severe horizontal alveolar ridge resorption, lateral augmentation procedures were performed using CCXBB as bone replacement grafts. Twenty-six weeks postoperatively, a re-entry procedure was performed to evaluate the bone width for adequate implant placement and two histological specimens were retrieved from each patient, one being processed for ground sectioning and the other for decalcified paraffin-included sections...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28634679/establishment-of-two-forensic-medicine-osce-stations-on-the-subject-of-external-post-mortem-examination
#17
S Heide, R Lessig, V Hachmann, D Stiller, M Rönsch, D Stoevesandt, A Biolik, S Watzke, J Kellner
An improvement in quality of medical external post-mortem examinations among others can be achieved by more intensive training of medical students. Modern learning and teaching methods such as e-learning modules and SkillsLab stations should be used for this. The introduction of corresponding methods of assessment such as the OSCE procedure is necessary to test the success of learning. In Halle (Germany), two OSCE stations on the subject of external post-mortem examinations were introduced in 2016. The 'practical external post-mortem examination' station test skills and abilities students have learned during practical external post-mortem examination in small group classes on a simulation doll...
June 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28633173/exploring-residents-skills-in-diagnosing-dementia-the-unexpected-dissonance-between-ability-and-confidence
#18
Brian S Lerner, Virginia Kalish, Christy J W Ledford
BACKGROUND AND OBJECTIVES: The diagnosis of dementia is a challenge for physicians due to numerous interrelated barriers. Research shows that this difficulty may be rooted in an incomplete knowledge about dementia. To address this gap, we developed an assessment scale of resident confidence in the diagnosis of dementia and used it to compare resident confidence to their practical ability to diagnose dementia. METHODS: The study used a piloted confidence assessment tool for diagnosing dementia correlated with family medicine residents (n=45) performance during an objective structured clinical examination (OSCE)...
June 2017: Family Medicine
https://www.readbyqxmd.com/read/28632531/a-descriptive-survey-of-anesthesiology-residency-simulation-programs-how-are-programs-preparing-residents-for-the-new-american-board-of-anesthesiology-applied-certification-examination
#19
Robert S Isaak, Fei Chen, Harendra Arora, Susan M Martinelli, David A Zvara, Marjorie P Stiegler
BACKGROUND: Anesthesiology residency programs may need new simulation-based programs to prepare residents for the new Objective Structured Clinical Examination (OSCE) component of the American Board of Anesthesiology (ABA) Primary Certification process. The design of such programs may require significant resources, including faculty time, expertise, and funding, as are currently needed for structured oral examination (SOE) preparation. This survey analyzed the current state of US-based anesthesiology residency programs regarding simulation-based educational programming for SOE and OSCE preparation...
June 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28632015/the-associations-between-clerkship-objective-structured-clinical-examination-osce-grades-and-subsequent-performance
#20
Ting Dong, Christopher Zahn, Aaron Saguil, Kimberly A Swygert, Michelle Yoon, Jessica Servey, Steven Durning
Construct: We investigated the extent of the associations between medical students' clinical competency measured by performance in Objective Structured Clinical Examinations (OSCE) during Obstetrics/Gynecology and Family Medicine clerkships and later performance in both undergraduate and graduate medical education. BACKGROUND: There is a relative dearth of studies on the correlations between undergraduate OSCE scores and future exam performance within either undergraduate or graduate medical education and almost none on linking these simulated encounters to eventual patient care...
July 2017: Teaching and Learning in Medicine
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