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Performance validity tests

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https://www.readbyqxmd.com/read/28319983/reliability-and-validity-of-ten-consumer-activity-trackers-depend-on-walking-speed
#1
Tryntsje Fokkema, Thea J M Kooiman, Wim P Krijnen, Cees P VAN DER Schans, Martijn DE Groot
PURPOSE: To examine the test-retest reliability and validity of ten activity trackers for step counting at three different walking speeds. METHODS: Thirty-one healthy participants walked twice on a treadmill for 30 min while wearing 10 activity trackers (Polar Loop, Garmin Vivosmart, Fitbit Charge HR, Apple Watch Sport, Pebble Smartwatch, Samsung Gear S, Misfit Flash, Jawbone Up Move, Flyfit, and Moves). Participants walked three walking speeds for 10 min each; slow (3...
April 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28319523/plasma-levels-of-microrna-155-are-upregulated-with-long-term-left-ventricular-assist-device-support
#2
Teresa Wang, Emily C OʼBrien, Joseph G Rogers, Daniel L Jacoby, Michael E Chen, Jeffrey M Testani, Dawn E Bowles, Carmelo A Milano, G Michael Felker, Chetan B Patel, Pramod N Bonde, Tariq Ahmad
Left ventricular assist device (LVAD) therapy unloads the failing heart but exposes the human body to unique pathophysiological demands such as continuous blood-flow and complete univentricular support, which are associated with increased risk of adverse clinical outcomes. MiRNAs are 22-23 nucleotide RNAs involved in regulation of multiple biological processes including the pathogenesis of heart failure (HF). Thus, measurement of miRNAs may have potential in both diagnostics as circulating biomarkers, and in therapeutics for targeted interventions...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319491/breaking-down-the-objective-structured-clinical-examination-an-evaluation-of-the-helping-babies-breathe-osces
#3
Teresa L Seto, Meredith E Tabangin, Kathryn K Taylor, Srirama Josyula, Juan Carlos Vasquez, Beena D Kamath-Rayne
INTRODUCTION: Helping Babies Breathe (HBB) is a simulation-based neonatal resuscitation curriculum designed for low-resource settings. At the completion of the workshop, learners complete the following four assessments: a multiple-choice question (MCQ) test, bag-mask ventilation (BMV) checklist, and two objective structured clinical examinations (OSCEs). Objective structured clinical examinations are clinical performance assessments that evaluate learners' skills in simulated scenarios...
March 18, 2017: Simulation in Healthcare: Journal of the Society for Simulation in Healthcare
https://www.readbyqxmd.com/read/28319182/the-viability-of-an-ecologically-valid-chronic-sleep-restriction-and-circadian-timing-protocol-an-examination-of-sample-attrition-compliance-and-effectiveness-at-impacting-sleepiness-and-mood
#4
David L Dickinson, Sean P A Drummond, Todd McElroy
Chronic sleep restriction (SR) increases sleepiness, negatively impacts mood, and impairs a variety of cognitive performance measures. The vast majority of work establishing these effects are tightly controlled in-lab experimental studies. Examining commonly-experienced levels of SR in naturalistic settings is more difficult and generally involves observational methods, rather than active manipulations of sleep. The same is true for analyzing behavioral and cognitive outcomes at circadian unfavorable times...
2017: PloS One
https://www.readbyqxmd.com/read/28318742/a-mobile-based-surgical-simulation-application-a-comparative-analysis-of-efficacy-using-a-carpal-tunnel-release%C3%A2-module
#5
Kamil M Amer, Taha Mur, Kamal Amer, Asif M Ilyas
PURPOSE: The utilization of surgical simulation continues to grow in medical training. The TouchSurgery application (app) is a new interactive virtual reality smartphone- or tablet-based app that offers a step-by-step tutorial and simulation for the execution of various operations. The purpose of this study was to compare the efficacy of the app versus traditional teaching modalities utilizing the "Carpal Tunnel Surgery" module. We hypothesized that users of the app would score higher than those using the traditional education medium indicating higher understanding of the steps of surgery...
March 16, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28318586/prediction-and-repeatability-of-milk-coagulation-properties-and-curd-firming-modeling-parameters-of-ovine-milk-using-fourier-transform-infrared-spectroscopy-and-bayesian-models
#6
A Ferragina, C Cipolat-Gotet, A Cecchinato, M Pazzola, M L Dettori, G M Vacca, G Bittante
The aim of this study was to apply Bayesian models to the Fourier-transform infrared spectroscopy spectra of individual sheep milk samples to derive calibration equations to predict traditional and modeled milk coagulation properties (MCP), and to assess the repeatability of MCP measures and their predictions. Data consisted of 1,002 individual milk samples collected from Sarda ewes reared in 22 farms in the region of Sardinia (Italy) for which MCP and modeled curd-firming parameters were available. Two milk samples were taken from 87 ewes and analyzed with the aim of estimating repeatability, whereas a single sample was taken from the other 915 ewes...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28318415/is-the-hebb-repetition-task-a-reliable-measure-of-individual-differences-in-sequence-learning
#7
Louisa Bogaerts, Noam Siegelman, Tali Ben-Porat, Ram Frost
The Hebb repetition task, an operationalization of long-term sequence learning through repetition, is the focus of renewed interest, as it is taken to provide a laboratory analogue for naturalistic vocabulary acquisition. Indeed, recent studies have consistently related performance in the Hebb repetition task with a range of linguistic (dis)abilities. However, in spite of the growing interest in the Hebb repetition effect as a theoretical construct, no previous research has ever tested whether the task used to assess Hebb learning offers a stable and reliable measure of individual performance in sequence learning...
March 20, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28318186/cross-cultural-adaptation-of-the-transition-readiness-assessment-questionnaire-to-argentinian-spanish
#8
Carmen L De Cunto, Alfredo Eymann, María de Los Ángeles Britos, Florencia González, Mariana Roizen, María de Las Mercedes Rodríguez Celin, Enrique Soriano Guppy
In Argentina, there was not an adapted and validated instrument to evaluate readiness for the transition to adult health care. The purpose of this study was to describe the process of cross-cultural adaptation of the Transition Readiness Assessment Questionnaire 5.0 to Argentinian Spanish. The authors of the instrument were contacted to this effect. Stage 1: two translators performed the translation to Spanish. Stage 2: based on these two versions, version 1 was agreed upon. Stage 3: two back-translations were performed...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28318060/integrating-postural-and-vestibular-dimensions-to-depict-impairment-in-moderate-to-severe-obstructive-sleep-apnea-syndrome-patients
#9
Alessandro Micarelli, Claudio Liguori, Andrea Viziano, Francesca Izzi, Fabio Placidi, Marco Alessandrini
Vestibular dysfunction was linked to moderate-to-severe obstructive sleep apnea syndrome (OSAS) patients in literature. However, due to a lack of knowledge among valid and recent implementations conceived to study postural control on static posturography (SP) and vestibulo-ocular reflex (VOR) gain under physiological conditions (video Head Impulse Test; vHIT), the aim of this work was to integrate (i) VOR changes via vHIT implementation, (ii) postural arrangement by studying both classical parameters and frequency spectra (PS) and (iii) correlation between these findings, polygraphic (PG) and subjective scores along Dizziness Handicap Inventory (DHI) and Epworth Sleepiness Scale (ESS)...
March 20, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28317646/clinical-validity-of-delayed-recall-tests-as-a-gateway-biomarker-for-alzheimer-s-disease-in-the-context-of-a-structured-5-phase-development-framework
#10
REVIEW
Chiara Cerami, Bruno Dubois, Marina Boccardi, Andreas U Monsch, Jean Francois Demonet, Stefano F Cappa
Although Alzheimer's disease criteria promote the use of biomarkers, their maturity in clinical routine still needs to be assessed. In the light of the oncology framework, we conducted a literature review on measures used to assess delayed recall impairment due to medial temporal lobe dysfunction (i.e., free and cued word list recall tests). Ample evidence is available for phases 1 (rationale for use), 2 (discriminative ability), and 3 (early detection ability) for many of the tests in routine use. Evidence about phase 4 (performance in real world) and phase 5 (quantify impact and costs) is yet to come...
April 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28317626/one-year-survival-is-not-affected-by-gastrointestinal-bleeding-after-percutaneous-coronary-interventions
#11
Kyari Sumayin Ngamdu, Wael El Mallah, Alok Dwivedi, Rabab Mohsin, Sherif Elhanafi, Yi Jia, Luis A Alvarado, Debabrata Mukherjee, Marc J Zuckerman
BACKGROUND: Percutaneous coronary intervention (PCI) has been the main therapy in acute coronary syndromes, and early antithrombotic agents as well as 1-year dual antiplatelet therapy are required for adjuvant therapy. However, the development of post-PCI gastrointestinal (GI) bleeding may increase all-cause mortality. We compared the characteristics and outcomes of patients with GI bleeding within 1 year after PCI to those who did not develop bleeding. METHODS: A retrospective cohort study was conducted using data from 384 PCI procedures performed between January 2011 and December 2013 at our hospital...
April 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28317396/3d-qsar-studies-pharmacophore-modeling-and-virtual-screening-of-diarylpyrazole-benzenesulfonamide-derivatives-as-a-template-to-obtain-new-inhibitors-using-human-carbonic-anhydrase-ii-as-a-model-protein
#12
Yeganeh Entezari Heravi, Hassan Sereshti, Ali Akbar Saboury, Jahan Ghasemi, Marzieh Amirmostofian, Claudiu T Supuran
A 3D-QSAR modeling was performed on a series of diarylpyrazole-benzenesulfonamide derivatives acting as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). The compounds were collected from two datasets with the same scaffold, and utilized as a template for a new pharmacophore model to screen the ZINC database of commercially available derivatives. The datasets were divided into training, test, and validation sets. As the first step, comparative molecular field analysis (CoMFA), CoMFA region focusing and comparative molecular similarity indices analysis (CoMSIA) in parallel with docking studies were applied to a set of 41 human (h) CA II inhibitors...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28317114/personality-traits-as-patterns-of-meaning-assignment-tendencies
#13
Shulamith Kreitler
OBJECTIVE: The purpose is to present a new conception about the nature of personality traits based on the Kreitler Meaning System. The major constructs of the meaning system are referent, meaning value, meaning unit, and meaning variables characterizing the meaning unit. The individual's meaning profile is the set of meaning variables the individual uses as assessed by the Test of Meanings. Personality traits are defined as patterns of meaning assignment tendencies. METHOD: After introducing the meaning system the paper describes the new conception of personality traits, and presents the example of extroversion...
March 20, 2017: Journal of Personality
https://www.readbyqxmd.com/read/28316280/predicting-fitness-to-practise-events-in-international-medical-graduates-who-registered-as-uk-doctors-via-the-professional-and-linguistic-assessments-board-plab-system-a-national-cohort-study
#14
Paul A Tiffin, Lewis W Paton, Lazaro M Mwandigha, John C McLachlan, Jan Illing
BACKGROUND: International medical graduates working in the UK are more likely to be censured in relation to fitness to practise compared to home graduates. Performance on the General Medical Council's (GMC's) Professional and Linguistic Assessments Board (PLAB) tests and English fluency have previously been shown to predict later educational performance in this group of doctors. It is unknown whether the PLAB system is also a valid predictor of unprofessional behaviour and malpractice...
March 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28316137/more-for-less-analysis-of-the-performance-of-avian-acute-oral-guideline-oecd-223-from-empirical-data
#15
Peter J Edwards, Annegaaike Leopold, Joann B Beavers, Timothy A Springer, Peter Chapman, Samuel K Maynard, Patrick Hubbard
Since the publication of avian acute oral guideline OECD223, empirical data have become available to compare the performance of OECD223 with statistical simulations used to validate this guideline and with empirical data for USEPA Guideline OCSPP850.2100. Empirical studies comprised 244 for Northern bobwhite of which 73 were dose response tests and 171 were limit tests. Of the dose response tests, 26 were conducted to OECD223 (using 3-4 stages) and 33 to OCSPP850.2100 (using the single 50 bird design). Data were collected from five avian testing laboratories from studies performed between 2006 and 2013...
March 18, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28315673/chromosomal-microarray-detection-of-constitutional-copy-number-variation-using-saliva-dna
#16
Jennifer Reiner, Lisa Karger, Ninette Cohen, Lakshmi Mehta, Lisa Edelmann, Stuart A Scott
Chromosomal microarray (CMA) testing to detect copy number aberrations among individuals with multiple congenital anomalies and/or developmental delay is typically performed on peripheral blood DNA. However, the use of saliva DNA may be preferred for some patients, which prompted our validation study using six saliva DNA samples with a range of bacterial content (approximately 3% to 21%) and 20 paired blood and saliva specimens on the Agilent Technologies, Illumina, and Affymetrix CMA platforms. Ten of the 20 paired specimens were previously determined to carry clinically significant copy number aberrations by clinical CMA testing on blood DNA (100 kb to 2...
March 15, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28314996/development-of-the-aospine-patient-reported-outcome-spine-trauma-aospine-prost-a-universal-disease-specific-outcome-instrument-for-individuals-with-traumatic-spinal-column-injury
#17
Said Sadiqi, A Mechteld Lehr, Marcel W Post, Marcel F Dvorak, Frank Kandziora, S Rajasekaran, Klaus J Schnake, Alexander R Vaccaro, F Cumhur Oner
PURPOSE: To report on the multi-phase process used in developing the AOSpine Patient Reported Outcome Spine Trauma (AOSpine PROST), as well as the results of its application in a pilot study. METHODS: The International Classification of Functioning, Disability and Health (ICF) methodology was used as the basis for the development of this tool. Four preparatory studies and a consensus conference were performed, and resulted in the selection of 25 core ICF categories as well as the scale for use...
March 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28314756/predicting-occupational-asthma-and-rhinitis-in-bakery-workers-referred-for-clinical-evaluation
#18
Badri Sadat Jonaid, Jos Rooyackers, Erik Stigter, Lützen Portengen, Esmeralda Krop, Dick Heederik
BACKGROUND: Occupational allergic diseases are a major problem in some workplaces like in the baking industry. Diagnostic rules have been used in surveillance but not yet in the occupational respiratory clinic. OBJECTIVE: To develop diagnostic models predicting baker's asthma and rhinitis among bakery workers at high risk of sensitisation to bakery allergens referred to a specialised clinic. METHODS: As part of a medical surveillance programme, clinical evaluation was performed on 436 referred Dutch bakery workers at high risk for sensitisation to bakery allergens...
March 17, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28314391/trace-determination-of-perfluorooctane-sulfonate-and-perfluorooctanoic-acid-in-environmental-samples-surface-water-wastewater-biota-sediments-and-sewage-sludge-using-liquid-chromatography-orbitrap-mass-spectrometry
#19
D Zacs, V Bartkevics
An analytical method was established and validated for the analysis of the most frequently monitored representatives among the group of perfluorinated compounds (PFAS), namely, perfluorooctanoic acid (PFOA) and prefluorooctane sulfonate (PFOS) in environmental samples (surface water, wastewater, sediments, sewage sludge, and biota). High performance liquid chromatography (HPLC) coupled to Orbitrap mass spectrometry (Orbitrap-MS) employing a heated electrospray ionization (HESI) interface operated in negative mode was used for the quantitative determination of these contaminants...
November 18, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28306642/damage-identification-on-vertebral-bodies-during-compressive-loading-using-digital-image-correlation
#20
Hannah M Gustafson, Angela D Melnyk, Gunter P Siegmund, Peter A Cripton
STUDY DESIGN: Ex vivo compression experiments on isolated cadaveric vertebrae OBJECTIVE.: To qualitatively compare the fracture locations identified in video analysis with the locations of high compressive strain measured with DIC on vertebral bodies and to evaluate the timing of local damage to the cortical shell relative to the global yield force SUMMARY OF BACKGROUND DATA.: In previous ex vivo experiments, cortical bone fracture has been identified using various methods including acoustic emission sensors, strain gages, video analysis, or force signals...
March 16, 2017: Spine
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