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Aliza B Solomon, Rachel Reed, Keith Benkov, Joseph Kingsbery, Sarah S Lusman, Lisa B Malter, Jeremiah Levine, Simon Rabinowitz, Martin Wolff, Sondra Zabar, Elizabeth Weinshel
BACKGROUND: The Accreditation Council for Graduate Medical Education (ACGME) has described six core competencies with which trainees should demonstrate proficiency. Using the Objective Structured Clinical Exam (OSCE), we aimed to assess four of these competencies among Pediatric GI fellows (PG). METHODS: Eight first-year PG's from six medical centers in the New York area participated in a four-station OSCE with trained standardized patient (SP) actors. The cases included an "ED Consult" for lower GI bleeding; "Breaking Bad News" focusing on CF nutritional complications; "Second Opinion" for abdominal pain; "Transition of Care" for inflammatory bowel disease...
October 25, 2016: Journal of Pediatric Gastroenterology and Nutrition
Hiroko Kitahara, Mariko Hirai, Koroku Kato, George Bou-Gharios, Hiroyuki Nakamura, Shuichi Kawashiri
Inhibition of epidermal growth factor receptor (EGFR) signalling has emerged as a new treatment strategy for oral squamous cell carcinoma (OSCC). Previously, we found that loss of EGFR expression in OSCC was associated with epithelial-mesenchymal transition (EMT), and may have functional implications with regard to resistance to cetuximab, a monoclonal anti-EGFR antibody. Eribulin (a microtubule inhibitor) reportedly renders breast cancer less aggressive, and less likely to metastasise, by triggering mesenchymal‑to‑epithelial (MET) transition...
October 21, 2016: Oncology Reports
Eui Jin Lee, Jae Pil Han, Seung Eun Jung, Min Hee Choi, Doo Kyung Moon
In this study, we fabricated conventional structured organic solar cells (OSCs) by introducing a hole extraction layer (HEL) that consisted of poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) and conjugated polymer electrolyte (CPE) poly[9,9-bis(4'-sulfonatobutyl)fluorene-alt-thiophene] (PFT-D). PFT-D has a -SO3(-) functional group that acts as a conjugate base against the -SO3H of PSS. In addition, the molecular dipole of PFT-D can screen the coulombic attraction between PEDOT chains and PSS chains...
October 21, 2016: ACS Applied Materials & Interfaces
Hossein Yazdekhasti, Zahra Rajabi, Soraya Parvari, Mehdi Abbasi
Although existence of ovarian stem cells (OSCs) in mammalian postnatal ovary is still under controversy, however, it has been almost accepted that OSCs are contributing actively to folliculogenesis and neo-oogenesis. Recently, various methods with different efficacies have been employed for OSCs isolation from ovarian tissue, which these methods could be chosen depends on aim of isolation and accessible equipments and materials in lab. Although isolated OSCs from different methods have various traits and characterizations, which might become from their different nature and origin, however these stem cells are promising source for woman infertility treatment or source of energy for women with a history of repeat IVF failure in near future...
October 20, 2016: Journal of Ovarian Research
Yan G Fulcher, Martial Fotso, Chee-Hoon Chang, Hans Rindt, Carol R Reinero, Steven R Van Doren
Asthma is prevalent in children and cats, and needs means of noninvasive diagnosis. We sought to distinguish noninvasively the differences in 53 cats before and soon after induction of allergic asthma, using NMR spectra of exhaled breath condensate (EBC). Statistical pattern recognition was improved considerably by preprocessing the spectra with probabilistic quotient normalization and glog transformation. Classification of the 106 preprocessed spectra by principal component analysis and partial least squares with discriminant analysis (PLS-DA) appears to be impaired by variances unrelated to eosinophilic asthma...
2016: PloS One
Yoyo Suhoyo, Gandes R Rahayu, Nani Cahyani
No abstract text is available yet for this article.
November 2016: Medical Education
Patricia C Henwood, David C Mackenzie, Joshua S Rempell, Emily Douglass, Damas Dukundane, Andrew S Liteplo, Megan M Leo, Alice F Murray, Samuel Vaillancourt, Anthony J Dean, Resa E Lewiss, Stephen Rulisa, Elizabeth Krebs, A K Raja Rao, Emmanuel Rudakemwa, Vincent Rusanganwa, Patrick Kyanmanywa, Vicki E Noble
OBJECTIVE: We delivered a point-of-care ultrasound training programme in a resource-limited setting in Rwanda, and sought to determine participants' knowledge and skill retention. We also measured trainees' assessment of the usefulness of ultrasound in clinical practice. METHODS: This was a prospective cohort study of 17 Rwandan physicians participating in a point-of-care ultrasound training programme. The follow-up period was 1 year. Participants completed a 10-day ultrasound course, with follow-up training delivered over the subsequent 12 months...
October 19, 2016: Tropical Medicine & International Health: TM & IH
Carolina Fernández-Lao, Irene Cantarero-Villanueva, Noelia Galiano-Castillo, Elena Caro-Morán, Lourdes Díaz-Rodríguez, Manuel Arroyo-Morales
BACKGROUND: Mobile learning (m-learning) has becoming very popular in education due to the rapidly advancing technology in our society. The potentials of the mobile applications should be used to enhance the education process. Few mobile applications have been designed to complement the study of physical therapy skills for physiotherapy students. The aim of this study was to investigate whether a mobile application, as a supplement to traditional learning, is useful for physiotherapy students in the acquisition of palpation and ultrasound skills in the shoulder area...
October 19, 2016: BMC Medical Education
David Agustriawan, Chien-Hung Huang, Jim Jinn-Chyuan Sheu, Shan-Chih Lee, Jeffrey J P Tsai, Nilubon Kurubanjerdjit, Ka-Lok Ng
Epigenetic regulation has been linked to the initiation and progression of cancer. Aberrant expression of microRNAs (miRNAs) is one such mechanism that can activate or silence oncogenes (OCGs) and tumor suppressor genes (TSGs) in cells. A growing number of studies suggest that miRNA expression can be regulated by methylation modification, thus triggering cancer development. However, there is no comprehensive in silico study concerning miRNA regulation by direct DNA methylation in cancer. Ovarian serous cystadenocarcinoma (OSC) was therefore chosen as a tumor model for the present work...
October 1, 2016: Computational Biology and Chemistry
R Brent Stansfield, Lisa Diponio, Cliff Craig, John Zeller, Edmund Chadd, Joshua Miller, Seetha Monrad
BACKGROUND: Medical students have difficulty performing and interpreting musculoskeletal physical examinations and interpreting the findings. Research has focused on students' knowledge deficits, but there are few direct assessments of students' ability to perform a hypothesis-driven physical examination (HDPE). We developed a novel musculoskeletal Objective Structured Clinical Exam (OSCE) focusing on HDPE skills for disorders of the shoulder, back and knee, and used it to explore medical student diagnostic reasoning...
October 14, 2016: BMC Medical Education
Youn Jin Choi, Je-Keun Rhee, Soo Young Hur, Min Sung Kim, Sung Hak Lee, Yeun-Jun Chung, Tae-Min Kim, Sug Hyung Lee
Intra-individual tumoural heterogeneity (ITH) is a hallmark of solid tumours and impedes accurate genomic diagnosis and selection of proper therapy. The purpose of this study was to identify ITH of ovarian high-grade serous carcinomas (OSCs) and to determine the utility of ascitic cancer cells as a resource for mutation profiling in spite of ITH. We performed whole-exome sequencing, copy number profiling, and DNA methylation profiling of four OSC genomes using multiregional biopsy from 13 intra-ovarian lesions, 12 extra-ovarian tumour lesions (omentum/peritoneum), and ascitic cells...
October 14, 2016: Journal of Pathology
Heng-Hui Lien, Sang-Feng Hsu, Shu-Chen Chen, Jiann-Horng Yeh
BACKGROUND: We report on interns' clinical competence and experiences of an objective structured clinical examination (OSCE) training program over 3 years. We aimed to determine whether repeated formative OSCEs allow teaching hospitals to improve the effectiveness of clinical training and help interns to achieve high scores in the national summative OSCE. METHODS: This study included 207 participants, among whom 82 were interns who had completed four mock OSCEs and a national OSCE at the clinical center of Cathay General Hospital (CGH)...
October 14, 2016: BMC Research Notes
M Ruesseler, J Sterz, B Bender, S Hoefer, F Walcher
PURPOSE: Feedback can significantly improve future performance. Reviewing one's performance by video is discussed as useful adjunct to debriefing, particularly for non-technical skills. Communicative competencies are an essential part of daily clinical practice; thus should be taught and assessed during undergraduate training. The aim of this study was to compare the educational value of video-assisted feedback versus oral feedback in communicative competencies in the surgical context...
October 11, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Jenni Burt, Gary Abel, Matt Barclay, Robert Evans, John Benson, Mark Gurnell
OBJECTIVE: To investigate the association between student performance in undergraduate objective structured clinical examinations (OSCEs) and the examination schedule to which they were assigned to undertake these examinations. DESIGN: Analysis of routinely collected data. SETTING: One UK medical school. PARTICIPANTS: 2331 OSCEs of 3 different types (obstetrics OSCE, paediatrics OSCE and simulated clinical encounter examination OSCE) between 2009 and 2013...
October 11, 2016: BMJ Open
Christine L Gray, Brian W Pence, Lynne C Messer, Jan Ostermann, Rachel A Whetten, Nathan M Thielman, Karen O'Donnell, Kathryn Whetten
BACKGROUND: Communities and nations seeking to foster social responsibility in their youth are interested in understanding factors that predict and promote youth involvement in public activities. Orphans and separated children (OSC) are a vulnerable population whose numbers are increasing, particularly in resource-poor settings. Understanding whether and how OSC are engaged in civic activities is important for community and world leaders who need to provide care for OSC and ensure their involvement in sustainable development...
October 11, 2016: Globalization and Health
Haojie Wu, Weihua Li, Minghui Zhang, Shutao Zhu, Dengfeng Zhang, Xiao Wang
OBJECTIVES: Osteosarcoma (OsC) is the most common primary bone malignant tumor with lower incidence and high degree of malignancy, but the exact mechanism remains unknown. More evidence demonstrated microRNAs (miRNAs) could contribute to tumor progression. In this study, we investigated the expression and functions of miR-320 in OsC cells. MATERIALS AND METHODS: miR-320 expression levels in several human OsC cell lines and human normal osteoblastic cell line were tested by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR)...
October 2016: Journal of Cancer Research and Therapeutics
Tao Liu, Yuan Guo, Yuanping Yi, Lijun Huo, Xiaonan Xue, Xiaobo Sun, Huiting Fu, Wentao Xiong, Dong Meng, Zhaohui Wang, Feng Liu, Thomas P Russell, Yanming Sun
Two different nonfullerene acceptors and one copolymer are used to fabricate ternary organic solar cells (OSCs). The two acceptors show unique interactions that reduce crystallinity and form a homogeneous mixed phase in the blend film, leading to a high efficiency of ≈10.3%, the highest performance reported for nonfullerene ternary blends. This work provides a new approach to fabricate high-performance OSCs.
September 26, 2016: Advanced Materials
Sadhu K Kolekar, Anjani Dubey, Kalyani S Date, Suwarna Datar, Chinnakonda S Gopinath
What is the correlation between physical properties of the surfaces (such as surface potential, electronic nature of the surface), and chemical and catalysis properties (such as chemisorption, sticking probability of surface)? An attempt has been made to explore any correlation that might exist between the physical and chemical properties of thin film surfaces. Kelvin probe microscopy (KPM) and the molecular beam (MB) methods were employed to carry out the surface potential, and oxygen adsorption and oxygen storage capacity (OSC) measurements on Ce1-xZrxO2 thin films...
October 5, 2016: Physical Chemistry Chemical Physics: PCCP
Debra Pugh, Samantha Halman, Isabelle Desjardins, Susan Humphrey-Murto, Timothy J Wood
: Construct: The impact of using nonbinary checklists for scoring residents from different levels of training participating in objective structured clinical examination (OSCE) progress tests was explored. BACKGROUND: OSCE progress tests typically employ similar rating instruments as traditional OSCEs. However, progress tests differ from other assessment modalities because learners from different stages of training participate in the same examination, which can pose challenges when deciding how to assign scores...
October 2016: Teaching and Learning in Medicine
Fernanda Silva, Ana Félix, Jacinta Serpa
Epithelial ovarian cancer is the most lethal gynecologic malignancy, despite advances in treatment. The most common histological type, high-grade ovarian serous carcinoma (OSC) is usually diagnosed at an advanced stage, and although these types of tumors frequently respond to surgery and platinum-based chemotherapy, they usually recur. Ovarian clear cell carcinoma (OCCC) is an unusual histological type, which is known to be intrinsically chemoresistant and is associated with poor prognosis in advanced stages...
October 2016: Oncology Letters
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