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https://www.readbyqxmd.com/read/29352748/use-of-e-learning-in-clinical-clerkships-effects-on-acquisition-of-dermatological-knowledge-and-learning-processes
#1
Frederike Fransen, Herm Martens, Ivo Nagtzaam, Sylvia Heeneman
Objectives: To obtain a deeper understanding of how the e-learning program, Education in Dermatology (ED), affects the acquisition of dermatological knowledge and the underlying learning processes of medical students in their clinical phase. Methods: The study used a mixed method design with a convergent parallel collection of data. Medical students (n=62) from Maastricht University (The Netherlands) were randomized to either a conventional teaching group (control group n=30) or conventional teaching plus the e-learning program (application on smartphone) group (e-learning group n=32)...
January 17, 2018: International Journal of Medical Education
https://www.readbyqxmd.com/read/29352156/comprehensive-reduction-of-amino-acid-set-in-a-protein-suggests-the-importance-of-prebiotic-amino-acids-for-stable-proteins
#2
Rei Shibue, Takahiro Sasamoto, Masami Shimada, Bowen Zhang, Akihiko Yamagishi, Satoshi Akanuma
Modern organisms commonly use the same set of 20 genetically coded amino acids for protein synthesis with very few exceptions. However, earlier protein synthesis was plausibly much simpler than modern one and utilized only a limited set of amino acids. Nevertheless, few experimental tests of this issue with arbitrarily chosen amino acid sets had been reported prior to this report. Herein we comprehensively and systematically reduced the size of the amino acid set constituting an ancestral nucleoside kinase that was reconstructed in our previous study...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351911/does-context-matter-convergent-and-divergent-findings-in-the-cross-institutional-evaluation-of-graduate-teaching-assistant-professional-development-programs
#3
Todd D Reeves, Laura E Hake, Xinnian Chen, Jennifer Frederick, Kristin Rudenga, Larry H Ludlow, Clare M O'Connor
Graduate teaching assistants (GTAs) play important instructional roles in introductory science courses, yet they often have little training in pedagogy. The most common form of teaching professional development (PD) for GTAs is a presemester workshop held at the course, department, or college level. In this study, we compare the effectiveness of presemester workshops at three northeastern research universities, each of which incorporated scientific teaching as the pedagogical content framework. The comparison of GTA PD program outcomes at three different institutions is intended to test theoretical assertions about the key role of contextual factors in GTA PD efficacy...
2018: CBE Life Sciences Education
https://www.readbyqxmd.com/read/29351803/psychometric-properties-and-measurement-equivalence-of-the-multidimensional-fatigue-syndrome-inventory-short-form-mfsi-sf-amongst-breast-cancer-and-lymphoma-patients-in-singapore
#4
Alexandre Chan, Claire Lew, Xiao Jun Wang, Terence Ng, Jung-Woo Chae, Hui Ling Yeo, Maung Shwe, Yan Xiang Gan
BACKGROUND: Currently, several fatigue measurement instruments are available to evaluate and measure cancer-related fatigue. Amongst them, Multidimensional Fatigue Syndrome Inventory-Short Form (MFSI-SF) is a self-reported instrument and a multidimensional scale that aims to capture the global, somatic, affective, cognitive and behavioural symptoms of fatigue. This study examines the psychometric properties and measurement equivalence of the English and Chinese versions of MFSI-SF in breast cancer and lymphoma patients in Singapore...
January 19, 2018: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/29351767/leading-for-the-long-haul-a-mixed-method-evaluation-of-the-sustainment-leadership-scale-sls
#5
Mark G Ehrhart, Elisa M Torres, Amy E Green, Elise M Trott, Cathleen E Willging, Joanna C Moullin, Gregory A Aarons
BACKGROUND: Despite our progress in understanding the organizational context for implementation and specifically the role of leadership in implementation, its role in sustainment has received little attention. This paper took a mixed-method approach to examine leadership during the sustainment phase of the Exploration, Preparation, Implementation, Sustainment (EPIS) framework. Utilizing the Implementation Leadership Scale as a foundation, we sought to develop a short, practical measure of sustainment leadership that can be used for both applied and research purposes...
January 19, 2018: Implementation Science: IS
https://www.readbyqxmd.com/read/29351711/-beck-anxiety-inventory-german-version-a-reliable-valid-patientfriendly-instrument-for-measuring-clinical-anxiety
#6
Edgar Geissner, Anne Huetteroth
The Beck Anxiety Inventory (BAI) is available in German. Apart from data in its manual, there are no further reports on the psychometric properties of this questionnaire and on its suitability for clinical use in Germany. This study therefore offers an independent investigation into the psychometrics as well as the clinical characteristics of the BAI. Three samples with n=145, n=90, and n=174 comprised inpatients diagnosed with anxiety disorders and treated in a large psychosomatic hospital. In addition to the BAI, the clinician rating Hamilton Anxiety Scale (HamA), the State-Trait-Anxiety Inventory (STAI) as well as the two anxiety subscales of the Symptom Checklist 90 (SCL 90) were used to establish convergent validity...
January 19, 2018: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/29351555/omega-3-fatty-acid-desaturase-gene-family-from-two-%C3%AF-3-sources-salvia-hispanica-and-perilla-frutescens-cloning-characterization-and-expression
#7
Yufei Xue, Baojun Chen, Aung Naing Win, Chun Fu, Jianping Lian, Xue Liu, Rui Wang, Xingcui Zhang, Yourong Chai
Omega-3 fatty acid desaturase (ω-3 FAD, D15D) is a key enzyme for α-linolenic acid (ALA) biosynthesis. Both chia (Salvia hispanica) and perilla (Perilla frutescens) contain high levels of ALA in seeds. In this study, the ω-3 FAD gene family was systematically and comparatively cloned from chia and perilla. Perilla FAD3, FAD7, FAD8 and chia FAD7 are encoded by single-copy (but heterozygous) genes, while chia FAD3 is encoded by 2 distinct genes. Only 1 chia FAD8 sequence was isolated. In these genes, there are 1 to 6 transcription start sites, 1 to 8 poly(A) tailing sites, and 7 introns...
2018: PloS One
https://www.readbyqxmd.com/read/29351552/in-situ-recording-of-ionic-currents-in-projection-neurons-and-kenyon-cells-in-the-olfactory-pathway-of-the-honeybee
#8
Jan Kropf, Wolfgang Rössler
The honeybee olfactory pathway comprises an intriguing pattern of convergence and divergence: ~60.000 olfactory sensory neurons (OSN) convey olfactory information on ~900 projection neurons (PN) in the antennal lobe (AL). To transmit this information reliably, PNs employ relatively high spiking frequencies with complex patterns. PNs project via a dual olfactory pathway to the mushroom bodies (MB). This pathway comprises the medial (m-ALT) and the lateral antennal lobe tract (l-ALT). PNs from both tracts transmit information from a wide range of similar odors, but with distinct differences in coding properties...
2018: PloS One
https://www.readbyqxmd.com/read/29351403/project-on-the-good-physician-further-evidence-for-the-validity-of-a-moral-intuitionist-model-of-virtuous-caring
#9
G Michael Leffel, Ross A Oakes Mueller, Sandra A Ham, Kyle E Karches, Farr A Curlin, John D Yoon
THEORY: In the Project on the Good Physician, the authors propose a moral intuitionist model of virtuous caring that places the virtues of Mindfulness, Empathic Compassion, and Generosity at the heart of medical character education. HYPOTHESES: Hypothesis 1a: The virtues of Mindfulness, Empathic Compassion, and Generosity will be positively associated with one another (convergent validity). Hypothesis 1b: The virtues of Mindfulness and Empathic Compassion will explain variance in the action-related virtue of Generosity beyond that predicted by Big Five personality traits alone (discriminant validity)...
January 19, 2018: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/29351224/n-dimensional-lll-reduction-algorithm-with-pivoted-reflection
#10
Zhongliang Deng, Di Zhu, Lu Yin
The Lenstra-Lenstra-Lovász (LLL) lattice reduction algorithm and many of its variants have been widely used by cryptography, multiple-input-multiple-output (MIMO) communication systems and carrier phase positioning in global navigation satellite system (GNSS) to solve the integer least squares (ILS) problem. In this paper, we propose an n-dimensional LLL reduction algorithm (n-LLL), expanding the Lovász condition in LLL algorithm to n-dimensional space in order to obtain a further reduced basis. We also introduce pivoted Householder reflection into the algorithm to optimize the reduction time...
January 19, 2018: Sensors
https://www.readbyqxmd.com/read/29351016/patterns-of-local-community-composition-are-linked-to-large-scale-diversification-and-dispersal-of-clades
#11
John J Wiens
At any location, a group of organisms may be represented by several clades. What determines which clades will dominate local communities in terms of their species richness? Here, this relatively neglected question is addressed by analyzing 166 local assemblages of snakes distributed globally. For most regions, local assemblages are dominated by clades with higher global-scale diversification rates and more frequent dispersal into each region, and not by clades that have been present in that region longer. This result contrasts with many other studies of local richness (in other organisms), which show strong impacts of regional colonization time on overall local species richness of clades...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350916/rhombohedral-to-cubic-conversion-of-gete-via-mnte-alloying-leads-to-ultralow-thermal-conductivity-electronic-band-convergence-and-high-thermoelectric-performance
#12
Zheng Zheng, Xianli Su, Rigui Deng, Constantinos C Stoumpos, Hongyao Xie, Wei Liu, Yonggao Yan, Shiqiang Hao, Ctirad Uher, Chris Wolverton, Mercouri G Kanatzidis, Xinfeng Tang
In this study, a series of Ge1-xMnxTe (x=0-0.21) compounds were prepared by melting-quenching-annealing process combined with Spark Plasma Sintering (SPS). The effect of alloying MnTe into GeTe on the structure and thermoelectric properties of Ge1-xMnxTe is profound. With increasing content of MnTe, the structure of the Ge1-xMnxTe compounds gradually changes from rhombohedral to cubic, and the known R3m to Fm-3m phase transition temperature of GeTe moves from 700 K closer to room temperature. First-principles density functional theory calculations show that alloying MnTe into GeTe decreases the energy difference between the light and heavy valence bands in both the R3m and the Fm-3m structures, enhancing a multi-band character of the valence band edge that increases the hole carrier effective mass...
January 19, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29350279/evaluation-of-the-convergent-validity-of-an-estimated-cardiorespiratory-fitness-algorithm
#13
Paul D Loprinzi, Meghan K Edwards, Ovuokerie Addoh, John P Bentley
PURPOSE: Examine the convergent validity of a cardiorespiratory fitness (CRF) algorithm when compared to treadmill-assessed CRF. METHODS: Data from the 1999-2004 NHANES were used (N = 3259 adults 20-49 years). Cardiorespiratory fitness was estimated from an algorithm. Participants completed a submaximal treadmill-based protocol. We (1) evaluated the pairwise association (and ICC) between estimated and measured cardiorespiratory fitness, (2) employed a paired samples t test to examine potential mean differences between estimated and measured cardiorespiratory fitness, (3) constructed a Bland-Altman plot and 95% limits of agreement (LoA) to explore systematic differences and random error between estimated and measured cardiorespiratory fitness, and (4) examined the association (via linear regression) of estimated and measured cardiorespiratory fitness with chronic disease prevalence and C-reactive protein (CRP)...
January 19, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29350201/moth-eye-mimetic-cytocompatible-bactericidal-nanotopography-a-convergent-design
#14
Felipe Viela, Iván Navarro-Baena, Jaime J Hernández, Manuel R Osorio, Isabel Rodriguez
The rapid emergence of antibiotic resistant bacteria has prompted the need for radically different approaches to combat bacterial infections. Among these, bioinspired surface topographies have emerged as an effective sustainable strategy to deter bacterial infection. This study demonstrates the bactericidal activity and cytocompatibility of the moth eye mimetic topography produced by thermal polymer nanoimprinting. The moth eye topography was found to have bactericidal capabilities against Gram negative and Gram positive bacteria...
January 19, 2018: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29350045/total-synthesis-of-xestosaprol-n-and-o
#15
Yingbo Shi, Yang Ji, Kunyun Xin, Shuanhu Gao
The first total synthesis of (-)-xestosaprol N and O is described. This synthetic work features a convergent strategy: (1) a Pd-catalyzed arylation followed by cyclization to build a naphthalene fragment (ring C, D); (2) utilization of (-)-quinic acid to construct the chiral hydroxyl group at C-2; (3) a substrate controlled intramolecular Heck reaction to construct a quaternary carbon center (ring B); (4) introduction of a hypotaurine moiety at a late stage to furnish the E ring.
January 19, 2018: Organic Letters
https://www.readbyqxmd.com/read/29349804/integrity-situational-judgement-test-for-medical-school-selection-judging-what-to-do-versus-what-not-to-do
#16
Wendy E de Leng, Karen M Stegers-Jager, Marise Ph Born, Axel P N Themmen
CONTEXT: Despite their widespread use in medical school selection, there remains a lack of clarity on exactly what situational judgement tests (SJTs) measure. OBJECTIVES: We aimed to develop an SJT that measures integrity by combining critical incident interviews (inductive approach) with an innovative deductive approach. The deductive approach guided the development of the SJT according to two established theoretical models, of which one was positively related to integrity (honesty-humility [HH]) and one was negatively related to integrity (cognitive distortions [CD])...
January 19, 2018: Medical Education
https://www.readbyqxmd.com/read/29349575/parkin-in-parkinson-s-disease-and-cancer-a-double-edged-sword
#17
REVIEW
Khushnuma Wahabi, Ahmad Perwez, Moshahid A Rizvi
Parkin for more than a decade has been portrayed as a neuroprotector gene is now increasingly emerging as a multifaceted gene that can exert entirely opposite effects i.e., both cell proliferation and apoptosis. Parkinson's disease, a neurological disease, progresses due to excess in cell death, while, in case of cancer, cell death normally fails to occur. Parkin, an E3 ubiquitin ligase, was first identified as a gene implicated in autosomal recessive juvenile Parkinsonism, but several evidences indicate that Parkin is a tumor suppressor gene, involved in a variety of cancers...
January 18, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29348813/synthesis-and-structure-activity-relationship-study-of-biliatresone-a-plant-isoflavonoid-that-causes-biliary-atresia
#18
Michelle A Estrada, Xiao Zhao, Kristin Lorent, Alyssa Kriegermeier, Seika A Nagao, Simon Berritt, Rebecca G Wells, Michael Pack, Jeffrey D Winkler
We report the first synthesis of the plant isoflavonoid biliatresone. The convergent synthesis has been applied to the synthesis of several analogs, which have facilitated the first structure-activity relationship study for this environmental toxin that, on ingestion, recapitulates the phenotype of biliary atresia.
January 11, 2018: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29348705/proximal-extrapolated-gradient-methods-for-variational-inequalities
#19
Yu Malitsky
The paper concerns with novel first-order methods for monotone variational inequalities. They use a very simple linesearch procedure that takes into account a local information of the operator. Also, the methods do not require Lipschitz continuity of the operator and the linesearch procedure uses only values of the operator. Moreover, when the operator is affine our linesearch becomes very simple, namely, it needs only simple vector-vector operations. For all our methods, we establish the ergodic convergence rate...
2018: Optimization Methods & Software
https://www.readbyqxmd.com/read/29348602/the-ten-year-evolutionary-trajectory-of-a-highly-recurrent-paediatric-high-grade-neuroepithelial-tumour-with-mn1-bend2-fusion
#20
Anna Burford, Alan Mackay, Sergey Popov, Maria Vinci, Diana Carvalho, Matthew Clarke, Elisa Izquierdo, Aimee Avery, Thomas S Jacques, Wendy J Ingram, Andrew S Moore, Kieran Frawley, Timothy E Hassall, Thomas Robertson, Chris Jones
Astroblastomas are rare brain tumours which predominate in children and young adults, and have a controversial claim as a distinct entity, with no established WHO grade. Reports suggest a better outcome than high grade gliomas, though they frequently recur. Recently, they have been described to overlap with a newly-discovered group of tumours described as'high grade neuroepithelial tumour with MN1 alteration' (CNS HGNET-MN1), defined by global methylation patterns and strongly associated with gene fusions targeting MN1...
January 18, 2018: Scientific Reports
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