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https://www.readbyqxmd.com/read/28635869/-the-topical-problems-of-expert-mistakes-and-evaluation-of-the-quality-of-forensic-medical-expertises-based-on-the-analysis-of-the-reports-published-in-the-journal-sudebno-meditsinskaya-ekspertiza-forensic-medical-expertise-during-the-period-from-1958-till
#1
L A Shmarov
The objective of the present study was the thematic analysis of the reports published in the journal 'Sudebno-meditsinskaya ekspertiza' (Forensic Medical Expertise) during the period from 1958 till 2015 that contain the authors' characteristics of the mistakes made in connection with the performance of various forms of forensic medical expertise with special reference to their quality and time schedules. A total of 268 issues of the journal were looked through from which 25 articles were selected dealing with the analysis of expert mistakes...
2017: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/28635678/evaluation-of-classifier-performance-for-multiclass-phenotype-discrimination-in-untargeted-metabolomics
#2
Patrick J Trainor, Andrew P DeFilippis, Shesh N Rai
Statistical classification is a critical component of utilizing metabolomics data for examining the molecular determinants of phenotypes. Despite this, a comprehensive and rigorous evaluation of the accuracy of classification techniques for phenotype discrimination given metabolomics data has not been conducted. We conducted such an evaluation using both simulated and real metabolomics datasets, comparing Partial Least Squares-Discriminant Analysis (PLS-DA), Sparse PLS-DA, Random Forests, Support Vector Machines (SVM), Artificial Neural Network, k-Nearest Neighbors (k-NN), and Naïve Bayes classification techniques for discrimination...
June 21, 2017: Metabolites
https://www.readbyqxmd.com/read/28635494/urea-cycle-disorder-misdiagnosed-as-multiple-sclerosis-a-case-report-and-review-of-the-literature
#3
Hussein Algahtani, Seham Alameer, Yousef Marzouk, Bader Shirah
Urea cycle disorders are a group of inborn errors of metabolism caused by dysfunction of any of the six enzymes or two transport proteins involved in urea biosynthesis. In this paper, we report a patient who presented with neurological dysfunction and coma in the immediate postpartum period. She was misdiagnosed for many years as a case of multiple sclerosis. The importance of reporting this case is to illustrate that the wrong diagnosis of patients as being affected with multiple sclerosis for many years due to magnetic resonance imaging abnormalities rather than the classic relapsing-remitting nature of the disease may lead to catastrophic consequences...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28633100/improving-the-accuracy-of-hyaluronic-acid-molecular-weight-estimation-by-conventional-size-exclusion-chromatography
#4
Sreeja Shanmuga Doss, Nirav Pravinbhai Bhatt, Guhan Jayaraman
There is an unreasonably high variation in the literature reports on molecular weight of hyaluronic acid (HA) estimated using conventional size exclusion chromatography (SEC). This variation is most likely due to errors in estimation. Working with commercially available HA molecular weight standards, this work examines the extent of error in molecular weight estimation due to two factors: use of non-HA based calibration and concentration of sample injected into the SEC column. We develop a multivariate regression correlation to correct for concentration effect...
June 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28631965/short-term-test-retest-reliability-of-the-impact-in-healthy-young-athletes
#5
Amanda M O'Brien, Joseph E Casey, Rachel M Salmon
The present study examined the short-term test-retest reliability of the Immediate Post-concussion Assessment and Cognitive Testing (ImPACT) variables with healthy 11- to 14-year-old athletes. 53 young athletes (Mage = 12.4 years, 9 female) were administered the ImPACT on two separate occasions two weeks apart. Participants were instructed to complete the Post-Concussion Symptom Scale (PCSS) and the baseline computerized neurocognitive test during both the baseline and retest phases. Intraclass correlation (ICC), standard error of measurement (SEM), and reliable change index (RCI) were used as reliability metrics...
February 22, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28630838/a-case-report-of-an-unusual-case-of-tuberculous-osteomyelitis-causing-spontaneous-pathological-fracture-of-humerus-in-a-middle-aged-female
#6
Umesh Birole, Ashish Ranade, Mahesh Mone
INTRODUCTION: Tuberculosis is a major health problem worldwide. Extrapulmonary tuberculosis is often secondary to some primary foci in lungs. There are reports of tuberculous osteomyelitis involving maxilla, ulna, femur, and shoulder joint but none have reported pathological fracture in humeral diaphysis due to tuberculosis osteomyelitis without shoulder joint involvement. We report a case of pathological fracture of humerus diaphysis due to tuberculous osteomyelitis with normal articular space...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630505/analytical-evaluation-of-the-accuracy-and-retention-of-compounding-skills-among-pharmd-students
#7
Mudit Mudit, Lloyd F Alfonso
Objective. To evaluate the accuracy and retention of compounding skills among students using analytical testing. Methods. Students compounded acetaminophen capsules from the same prescription at three time points (Exercise 1, 2, 3). The compounded products were analyzed (by HPLC) for acetaminophen content and the students' written reports were evaluated for accuracy of calculations and labeling. Results. During Exercise 1, 57.8% of the compounded capsule products were within the acceptable range, 92.2% during Exercise 2 and 75% during Exercise 3...
May 2017: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/28630456/rare-disruptive-variants-in-the-disc1-interactome-and-regulome-association-with-cognitive-ability-and-schizophrenia
#8
S Teng, P A Thomson, S McCarthy, M Kramer, S Muller, J Lihm, S Morris, D C Soares, W Hennah, S Harris, L M Camargo, V Malkov, A M McIntosh, J K Millar, D H Blackwood, K L Evans, I J Deary, D J Porteous, W R McCombie
Schizophrenia (SCZ), bipolar disorder (BD) and recurrent major depressive disorder (rMDD) are common psychiatric illnesses. All have been associated with lower cognitive ability, and show evidence of genetic overlap and substantial evidence of pleiotropy with cognitive function and neuroticism. Disrupted in schizophrenia 1 (DISC1) protein directly interacts with a large set of proteins (DISC1 Interactome) that are involved in brain development and signaling. Modulation of DISC1 expression alters the expression of a circumscribed set of genes (DISC1 Regulome) that are also implicated in brain biology and disorder...
June 20, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28630130/how-a-genetically-stable-extremophile-evolves-modes-of-genome-diversification-in-the-archaeon-sulfolobus-acidocaldarius
#9
Dominic Mao, Dennis W Grogan
In order to analyze in molecular terms how Sulfolobus genomes diverge, damage-induced mutations and natural polymorphisms (PMs) were identified in laboratory constructs and wild-type isolates, respectively, of Sulfolobus acidocaldarius Among wild-type isolates drawn from one local population, pairwise nucleotide divergence averaged 4 x 10(-6), which is about 0.15% of the corresponding divergence reported for Sulfolobus islandicus The most variable features of wild-type S. acidocaldarius genomes were homopolymer (mononucleotide) tracts and longer tandem repeats, consistent with the spontaneous mutations that occur under laboratory conditions...
June 19, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28629954/high-resolution-myelin-water-imaging-incorporating-local-tissue-susceptibility-analysis
#10
Zhe Wu, Hongjian He, Yi Sun, Yiping Du, Jianhui Zhong
Quantitative myelin water imaging (MWI) from signal T2* decay acquired with multiple Gradient-Recalled Echo (mGRE) sequence has been widely used since its first report. A recent study showed that with low resolution data (2mm isotropic voxels), direct application of complex fitting to a three-pool WM model with frequency shift terms could produce more stable parameter estimation for myelin water fraction mapping. MWI maps of higher spatial resolution resulting in more detailed tissue structures and reduced partial volume effects around white matter/gray matter (WM/GM) interface, however, is more desirable...
June 16, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28629682/aquatic-live-animal-radiotracing-studies-for-ecotoxicological-applications-addressing-fundamental-methodological-deficiencies
#11
Tom Cresswell, Marc Metian, Lisa A Golding, Mike D Wood
The use of live animal gamma radioisotope tracer techniques in the field of ecotoxicology allows laboratory studies to accurately monitor contaminant biokinetics in real time for an individual organism. However, methods used in published studies for aquatic organisms are rarely described in sufficient detail to allow for study replication or an assessment of the errors associated with live animal radioanalysis to be identified. We evaluate the influence of some important methodological deficiencies through an overview of the literature on live aquatic animal radiotracer techniques and through the results obtained from our radiotracer studies on four aquatic invertebrate species...
June 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28629445/effects-of-perioperative-statin-use-on-cardiovascular-complications-in-patients-submitted-to-non-cardiac-surgery-protocol-for-a-systematic-review-meta-analysis-and-trial-sequential-analysis
#12
Erica Aranha Suzumura, Rodrigo Antonini Ribeiro, Leticia Kawano-Dourado, Pedro Gabriel de Barros E Silva, Claudia Oliveira, Mabel Fernandes Figueiró, Alexandre Biasi Cavalcanti, Renato D Lopes, Otavio Berwanger
BACKGROUND: Preliminary evidence suggests statins may reduce major perioperative vascular events. However, evidence is limited to observational studies, underpowered trials, and non-comprehensive systematic reviews. This review aims to assess the effects of perioperative statin use on cardiovascular complications in patients submitted to non-cardiac surgery. METHODS: We will search MEDLINE/PubMed, EMBASE, LILACS, CENTRAL, Web of Science, and CINAHL for randomized controlled trials assessing the effects of perioperative statin use in adults undergoing non-cardiac surgery and reporting cardiovascular complications...
June 19, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28629262/dynamic-modelling-of-n-of-1-data-powerful-and-flexible-data-analytics-applied-to-individualised-studies
#13
Rute V Vieira, Suzanne McDonald, Vera Araújo-Soares, Falko F Sniehotta, Robin Henderson
N-of-1 studies are based on repeated observations within an individual or unit over time and are acknowledged as an important research method for generating scientific evidence about the health or behaviour of an individual. Statistical analyses of n-of-1 data require accurate modelling of the outcome while accounting for its distribution, time-related trend and error structures (e.g. autocorrelation) as well as reporting readily usable contextualised effect sizes for decision-making. A number of statistical approaches have been documented but no consensus exists on which method is most appropriate for which type of n-of-1 design...
June 20, 2017: Health Psychology Review
https://www.readbyqxmd.com/read/28628811/evaluating-pedestrian-behavior-at-crosswalks-validation-of-a-pedestrian-behavior-questionnaire-for-the-u-s-population
#14
Shuchisnigdha Deb, Lesley Strawderman, Janice DuBien, Brian Smith, Daniel W Carruth, Teena M Garrison
The aim of this study was to develop and validate a self-reporting Pedestrian Behavior Questionnaire (PBQ) for the U.S. population to measure frequency of risky behaviors among pedestrians. The PBQ includes 50 survey items that allow respondents to rate the frequency with which they engage in different types of road-using behaviors as pedestrians. The validation study was conducted on 425 participants (228 males and 197 females) between the ages of 18 and 71. Confirmatory factor analysis differentiated pedestrian behaviors into five factor categories: violations, errors, lapses, aggressive behaviors, and positive behaviors...
June 16, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28627905/mind-wandering-in-healthy-aging-and-early-stage-alzheimer-s-disease
#15
Mate Gyurkovics, David A Balota, Jonathan D Jackson
OBJECTIVE: The frequency of mind-wandering (MW) decreases as a function of age in healthy individuals. One possible explanation is that MW is a resource-dependent process, and cognitive resources decline with age. The present study provides the first investigation of MW in the earliest stages of Alzheimer's disease (AD) to further examine the resource model and discontinuities between healthy aging and AD. METHOD: Three large cohorts completed the Sustained Attention to Response Task (SART): a healthy middle-aged group (mean age = 61...
June 19, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28627112/asymptotic-distribution-of-%C3%A2-auc-nris-and-idi-based-on-theory-of-u-statistics
#16
Olga V Demler, Michael J Pencina, Nancy R Cook, Ralph B D'Agostino
The change in area under the curve (∆AUC), the integrated discrimination improvement (IDI), and net reclassification index (NRI) are commonly used measures of risk prediction model performance. Some authors have reported good validity of associated methods of estimating their standard errors (SE) and construction of confidence intervals, whereas others have questioned their performance. To address these issues, we unite the ∆AUC, IDI, and three versions of the NRI under the umbrella of the U-statistics family...
June 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28626050/admission-brain-cortical-volume-an-independent-determinant-of-poststroke-cognitive-vulnerability
#17
Sharmila Sagnier, Gwenaëlle Catheline, Bixente Dilharreguy, Fanny Munsch, Antoine Bigourdan, Mathilde Poli, Sabrina Debruxelles, Stéphane Olindo, Pauline Renou, François Rouanet, Vincent Dousset, Thomas Tourdias, Igor Sibon
BACKGROUND AND PURPOSE: Several markers of poststroke cognitive impairment have been reported. The role of brain cortical volume remains uncertain. The aim of this study was to evaluate the influence of brain cortical volume on cognitive outcomes using a voxel-based morphometry approach in subjects without prestroke dementia. METHODS: Ischemic stroke patients were prospectively recruited 24 to 72 hours post-stroke (M0). Cognition was evaluated at M0, 3 months, and 1 year (M12) using the Montreal Cognitive Assessment, the Isaacs set test, and the Zazzo's cancellation task...
June 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28625198/determining-the-clinical-significance-of-errors-in-pediatric-radiograph-interpretation-between-emergency-physicians-and-radiologists
#18
Jonathan Taves, Steve Skitch, Rahim Valani
OBJECTIVES: Emergency physicians (EPs) interpret plain radiographs for management and disposition of patients. Radiologists subsequently conduct their own interpretations, which may differ. The purposes of this study were to review the rate and nature of discrepancies between radiographs interpreted by EPs and those of radiologists in the pediatric emergency department, and to determine their clinical significance. METHODS: We conducted a retrospective review of discrepant radiology reports from a single-site pediatric emergency department from October 2012 to December 2014...
June 19, 2017: CJEM
https://www.readbyqxmd.com/read/28624050/impact-of-hospital-volume-on-outcomes-for-laparoscopic-adhesiolysis-for-small-bowel-obstruction
#19
Raymond A Jean, Kathleen M O'Neill, Kevin Y Pei, Kimberly A Davis
BACKGROUND: Volume-to-outcome data have been studied in several complex surgical procedures, demonstrating improved outcomes at higher volume centers. Laparoscopic lysis of adhesions (LLOA) for small bowel obstruction (SBO) may result in better outcomes, but there is no information on the learning curve for this potentially complex case. This study evaluates the effect of institutional procedural volume on length of stay (LOS), outcomes, and costs in LLOA for SBOs. MATERIALS AND METHODS: The Nationwide Inpatient Sample data set between 2000 and 2013 was queried for discharges for a diagnosis of SBO involving LLOA in adult patients...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28623185/a-web-based-data-collection-platform-for-multisite-randomized-behavioral-intervention-trials-development-key-software-features-and-results-of-a-user-survey
#20
Riddhi A Modi, Michael J Mugavero, Rivet K Amico, Jeanne Keruly, Evelyn Byrd Quinlivan, Heidi M Crane, Alfredo Guzman, Anne Zinski, Solange Montue, Katya Roytburd, Anna Church, James H Willig
BACKGROUND: Meticulous tracking of study data must begin early in the study recruitment phase and must account for regulatory compliance, minimize missing data, and provide high information integrity and/or reduction of errors. In behavioral intervention trials, participants typically complete several study procedures at different time points. Among HIV-infected patients, behavioral interventions can favorably affect health outcomes. In order to empower newly diagnosed HIV positive individuals to learn skills to enhance retention in HIV care, we developed the behavioral health intervention Integrating ENGagement and Adherence Goals upon Entry (iENGAGE) funded by the National Institute of Allergy and Infectious Diseases (NIAID), where we deployed an in-clinic behavioral health intervention in 4 urban HIV outpatient clinics in the United States...
June 16, 2017: JMIR Research Protocols
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