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https://www.readbyqxmd.com/read/28645090/the-impact-of-tidal-and-mesoscale-eddy-advection-on-the-long-term-dispersion-of-99-tc-from-sellafield
#1
Magne Simonsen, Øyvind Saetra, Pål Erik Isachsen, Ole Christian Lind, Hilde Kristin Skjerdal, Brit Salbu, Hilde Elise Heldal, Justin P Gwynn
In the present work, numerical models are used to study the fate of the (99)Tc discharges from Sellafield with a specific focus on the role of mesoscale eddy and tidal advection on the transport and dispersion of this radionuclide. Transport estimates are made with an ocean model that resolves a large part of the ocean mesoscale eddy field and also includes tides. Equivalent estimates are also computed with another model in which these processes are either absent or parametrized. Comparison with field observations shows that the coarse-resolution model can reproduce the general features of the observed time-space (99)Tc distribution if the diffusivity in its eddy parametrization scheme is suitably chosen...
June 20, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28644786/antecedents-and-consequences-of-medical-students-moral-decision-making-during-professionalism-dilemmas
#2
Lynn Monrouxe, Malissa Shaw, Charlotte Rees
Medical students often experience professionalism dilemmas (which differ from ethical dilemmas) wherein students sometimes witness and/or participate in patient safety, dignity, and consent lapses. When faced with such dilemmas, students make moral decisions. If students' action (or inaction) runs counter to their perceived moral values-often due to organizational constraints or power hierarchies-they can suffer moral distress, burnout, or a desire to leave the profession. If moral transgressions are rationalized as being for the greater good, moral distress can decrease as dilemmas are experienced more frequently (habituation); if no learner benefit is seen, distress can increase with greater exposure to dilemmas (disturbance)...
June 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28644378/an-energy-efficient-multi-tier-architecture-for-fall-detection-using-smartphones
#3
M Amac Guvensan, A Oguz Kansiz, N Cihan Camgoz, H Irem Turkmen, A Gokhan Yavuz, M Elif Karsligil
Automatic detection of fall events is vital to providing fast medical assistance to the causality, particularly when the injury causes loss of consciousness. Optimization of the energy consumption of mobile applications, especially those which run 24/7 in the background, is essential for longer use of smartphones. In order to improve energy-efficiency without compromising on the fall detection performance, we propose a novel 3-tier architecture that combines simple thresholding methods with machine learning algorithms...
June 23, 2017: Sensors
https://www.readbyqxmd.com/read/28644242/effects-of-participation-in-sports-programs-on-walking-ability-and-endurance-over-time-in-children-with-cerebral-palsy
#4
Sandy A Ross, Morgan Yount, Sara Ankarstad, Samantha Bock, Britta Orso, Kimberly Perry, Jennifer Miros, Janice E Brunstrom-Hernandez
OBJECTIVE: Children with cerebral palsy may benefit from maintaining a high level of physical fitness similar to typically developing children especially in terms of long-term physical performance, although in practice this is often difficult. The purpose of this study was to determine the effect of participation in sports programs on walking ability and endurance over time. DESIGN: A retrospective cohort study included participants with cerebral palsy, aged 6 to 20 yrs, who attended a summer sports program from 2004 to 2012...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28643890/anatomical-evaluation-of-the-thoracolumbar-nerves-related-to-the-transversus-abdominis-plane-block-technique-in-the-dog
#5
F E Castañeda-Herrera, E F Buriticá-Gaviria, D F Echeverry-Bonilla
Transversus abdominis plane (TAP) is a fascial plane containing the thoracolumbar nerve branches that innervate the abdominal wall. Limited information is available on the anatomical organization of these nerve branches in the dog, which is of great importance for the success of the TAP block anaesthetic technique. The aim of this study was to describe the origin and conformation of thoracolumbar nerves running through the TAP in 20 hemi-abdominal walls of 10 adult mongrel dog cadavers with an average body weight of 12...
June 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28643667/can-we-perform-a-prenatal-diagnosis-of-vasa-previa-to-improve-its-obstetrical-and-neonatal-outcomes
#6
E Nohuz, E Boulay, D Gallot, D Lemery, F Vendittelli
INTRODUCTION: Vasa previa (VP) is defined as a condition in which the fetal blood vessels, unsupported by the placenta or the umbilical cord, run through the membranes of the lower uterine segment. It is associated with a high risk of stillbirth by exsanguination. This study aimed to assess the clinical context of diagnosis of VP in order to elaborate a strategy for its prenatal diagnosis and to improve its obstetrical and neonatal outcomes. MATERIAL AND METHODS: This historical cohort study covered the period from January 1, 2011 to December 31, 2015...
April 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28643516/untargeted-comprehensive-two-dimensional-liquid-chromatography-coupled-with-high-resolution-mass-spectrometry-analysis-of-rice-metabolome-using-multivariate-curve-resolution
#7
Meritxell Navarro-Reig, Joaquim Jaumot, Anna Baglai, Gabriel Vivó-Truyols, Peter J Schoenmakers, Romà Tauler
In this work, a new strategy for the chemometric analysis of LC×LC-HRMS data is proposed. This approach consists of a preliminary compression step along the MS spectral dimension based on the selection of the Regions of Interest (ROI), followed by a further data compression along the chromatographic dimension by wavelet transforms. In a secondary step, the Multivariate Curve Resolution Alternating Least Squares (MCR-ALS) method is applied to previously compressed data sets obtained in the simultaneous analysis of multiple LC×LC-HRMS chromatographic runs from multiple samples...
June 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28643405/reassessment-of-the-access-testosterone-chemiluminescence-assay-and-comparison-with-lc-ms-method
#8
Ruggero Dittadi, Mara Matteucci, Elisa Meneghetti, Rudina Ndreu
AIM OF THE STUDY: To reassess the imprecision and Limit of Quantitation, to evaluate the cross-reaction with dehydroepiandrosterone-sulfate (DHEAS), the accuracy toward liquid chromatography-mass spectrometry (LC-MS) and the reference interval of the Access Testosterone method, performed by DxI immunoassay platform (Beckman Coulter). MATERIAL AND METHODS: Imprecision was evaluated testing six pool samples assayed in 20 different run using two reagents lots. The cross-reaction with DHEAS was studied both by a displacement curve and by spiking DHEAS standard in two serum samples with known amount of testosterone...
June 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28643276/a-rapid-two-step-iduronate-2-sulfatatse-enzymatic-activity-assay-for-mpsii-pharmacokinetic-assessment
#9
Mitra Azadeh, Luying Pan, Yongchang Qiu, Ruben Boado
Clinical studies involving enzyme replacement therapies (ERTs) have increasingly utilized enzymatic activity assays to monitor efficacy and biofunction of the drug; as a result, these assays have become an important part of pharmacokinetic (PK) and pharmacodynamic assessments in ERT trials. This paper presents a two-step enzymatic activity assay for iduronate-2-sulfatase (I2S) (EC 3.1.6.13) which we have optimized to fit in 1 day and to complete in less than 6 h. The rapid assay presented here is a significant improvement over the original two-step method with run time of 24 h which spanned 2 days...
June 23, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28643209/high-intensity-interval-training-interventions-in-children-and-adolescents-a-systematic-review
#10
REVIEW
William T B Eddolls, Melitta A McNarry, Gareth Stratton, Charles O N Winn, Kelly A Mackintosh
BACKGROUND: Whilst there is increasing interest in the efficacy of high-intensity interval training in children and adolescents as a time-effective method of eliciting health benefits, there remains little consensus within the literature regarding the most effective means for delivering a high-intensity interval training intervention. Given the global health issues surrounding childhood obesity and associated health implications, the identification of effective intervention strategies is imperative...
June 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28643127/preoperative-evaluation-of-left-common-iliac-vein-in-oblique-lateral-interbody-fusion-at-l5-s1
#11
Nam-Su Chung, Chang-Hoon Jeon, Han-Dong Lee, Heon-Ju Kweon
PURPOSE: Oblique lateral interbody fusion (OLIF) L5-S1 is essentially to perform an anterior lumbar interbody fusion (ALIF) in the lateral position. Because the surgical procedures are performed "obliquely" over the left common iliac vein (LCIV), ensuring that the vein is protected which is particularly important. We aimed to evaluate the configuration of LCIV and its risk of mobilization during anterior approach at L5-S1 segment. METHODS: This study involved 65 consecutive patients who underwent anterior lumbar fusion (ALIF, n = 39; OLIF, n = 26) at the L5-S1 segment...
June 22, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28642805/a-simple-method-for-hplc-retention-time-prediction-linear-calibration-using-two-reference-substances
#12
Lei Sun, Hong-Yu Jin, Run-Tao Tian, Ming-Juan Wang, Li-Na Liu, Liu-Ping Ye, Tian-Tian Zuo, Shuang-Cheng Ma
BACKGROUND: Analysis of related substances in pharmaceutical chemicals and multi-components in traditional Chinese medicines needs bulk of reference substances to identify the chromatographic peaks accurately. But the reference substances are costly. Thus, the relative retention (RR) method has been widely adopted in pharmacopoeias and literatures for characterizing HPLC behaviors of those reference substances unavailable. The problem is it is difficult to reproduce the RR on different columns due to the error between measured retention time (tR) and predicted tR in some cases...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28642437/human-in-the-loop-optimization-of-exoskeleton-assistance-during-walking
#13
Juanjuan Zhang, Pieter Fiers, Kirby A Witte, Rachel W Jackson, Katherine L Poggensee, Christopher G Atkeson, Steven H Collins
Exoskeletons and active prostheses promise to enhance human mobility, but few have succeeded. Optimizing device characteristics on the basis of measured human performance could lead to improved designs. We have developed a method for identifying the exoskeleton assistance that minimizes human energy cost during walking. Optimized torque patterns from an exoskeleton worn on one ankle reduced metabolic energy consumption by 24.2 ± 7.4% compared to no torque. The approach was effective with exoskeletons worn on one or both ankles, during a variety of walking conditions, during running, and when optimizing muscle activity...
June 23, 2017: Science
https://www.readbyqxmd.com/read/28642420/kiss-and-run-or-a-full-commitment
#14
EDITORIAL
Leslie K Ferrarelli
No abstract text is available yet for this article.
June 23, 2017: Science
https://www.readbyqxmd.com/read/28642311/run-in-bias-in-randomised-trials-the-case-of-copd-medications
#15
EDITORIAL
Samy Suissa
No abstract text is available yet for this article.
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28642097/are-two-dimensional-measured-frontal-plane-angles-related-to-three-dimensional-measured-kinematic-profiles-during-running
#16
Bart Dingenen, Filip F Staes, Lieselot Santermans, Lien Steurs, Maarten Eerdekens, Jurre Geentjens, Koen H E Peers, Maarten Thysen, Kevin Deschamps
OBJECTIVES: To investigate the temporal relationship between two-dimensional measured frontal plane joint angles and three-dimensional measured kinematic profiles during the stance phase of running, and to assess the intra- and intertester reliability of the two-dimensional angles. DESIGN: Observational study. SETTING: Research laboratory. PARTICIPANTS: Fifteen injury-free elite athletes. MAIN OUTCOME MEASURES: Contralateral pelvic drop (CPD), femoral adduction (FA), hip adduction (HA) and knee valgus (KV) were measured at the deepest landing position during midstance with two-dimensional video analysis during running...
March 4, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28642059/new-trends-on-obesity-and-nafld-in-asia
#17
REVIEW
Jian-Gao Fan, Seung-Up Kim, Vincent Wai-Sun Wong
Traditionally, obesity and its related diseases are considered problems in Western countries. However, in the past two decades, urbanization in many Asian countries has led to sedentary lifestyle and overnutrition, and has set the stage for the epidemic of obesity. This article reviews the epidemiological trend of obesity in Asia with special emphasis on the emerging condition of non-alcoholic fatty liver disease (NAFLD). Currently, the population prevalence of NAFLD in Asia is around 25%, similar to that in many Western countries...
June 19, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28641681/the-effects-of-training-on-anxiety-and-task-performance-in-simulated-suborbital-spaceflight
#18
Rebecca S Blue, Frederick Bonato, Kimberly Seaton, Andrea Bubka, Johnené L Vardiman, Charles Mathers, Tarah L Castleberry, James M Vanderploeg
INTRODUCTION: In commercial spaceflight, anxiety could become mission-impacting, causing negative experiences or endangering the flight itself. We studied layperson response to four varied-length training programs (ranging from 1 h-2 d of preparation) prior to centrifuge simulation of launch and re-entry acceleration profiles expected during suborbital spaceflight. We examined subject task execution, evaluating performance in high-stress conditions. We sought to identify any trends in demographics, hemodynamics, or similar factors in subjects with the highest anxiety or poorest tolerance of the experience...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28641679/normobaric-hypoxia-and-submaximal-exercise-effects-on-running-memory-and-mood-state-in-women
#19
Yongsuk Seo, Hayden D Gerhart, Jon Stavres, Curtis Fennell, Shane Draper, Ellen L Glickman
BACKGROUND: An acute bout of exercise can improve cognitive function in normoxic and hypoxic conditions. However, limited research supports the improvement of cognitive function and mood state in women. The purpose of this study was to examine the effects of hypoxia and exercise on working memory and mood state in women. METHODS: There were 15 healthy women (age = 22 ± 2 yr) who completed the Automated Neuropsychological Assessment Metrics-4th Edition (ANAM), including the Running Memory Continuous Performance Task (RMCPT) and Total Mood Disturbance (TMD) in normoxia (21% O2), at rest in normoxia and hypoxia (12...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28641622/-variation-of-lnk-gene-in-chronic-myeloid-leukemia
#20
Mei Tan, Ying Rong, Run-Mei Tian, Yu-Hang Zhu, Ping Zhu, Yan Chen
OBJECTIVE: To compare the mutation and single nucleotide polymorphism (SNP) of LNK gene between chronic myeloid leukemia(CML) and control groups, and to explore the relationship between LNK gene variation and the occurrence of CML. METHODS: A total of 36 patients with CML were selected, 46 healthy persons were used as normal controls. DNA was extracted from bone marrow and peripheral blood, BCR/ABL1 fusion gene was detected by Q-PCR. The whole exon of LNK gene was amplified by PCR...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
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