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https://www.readbyqxmd.com/read/28545075/an-improved-ant-colony-optimization-algorithm-with-fault-tolerance-for-job-scheduling-in-grid-computing-systems
#1
Hajara Idris, Absalom E Ezugwu, Sahalu B Junaidu, Aderemi O Adewumi
The Grid scheduler, schedules user jobs on the best available resource in terms of resource characteristics by optimizing job execution time. Resource failure in Grid is no longer an exception but a regular occurring event as resources are increasingly being used by the scientific community to solve computationally intensive problems which typically run for days or even months. It is therefore absolutely essential that these long-running applications are able to tolerate failures and avoid re-computations from scratch after resource failure has occurred, to satisfy the user's Quality of Service (QoS) requirement...
2017: PloS One
https://www.readbyqxmd.com/read/28544949/the-influence-of-shoe-aging-on-children-running-biomechanics
#2
Alexis Herbaut, Pascale Chavet, Maxime Roux, Nils Guéguen, Franck Barbier, Emilie Simoneau-Buessinger
Athletic children are prone to overuse injuries, especially at the heel and knee. Since footwear is an extrinsic factor of lower limb injury risk, the aim of this study was to assess the influence of shoe aging on children running biomechanics. Fourteen children active in sports participated in a laboratory biomechanical evaluation. A new pair of shoes was provided to each participant at an inclusion visit. Four months later, the participants performed a running task and their kinematics and kinetics were assessed both with their used shoes and with a new pair of shoes identical to the first...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28544886/the-level-of-physical-fitness-in-children-aged-6-7years-with-low-birthweight
#3
Elżbieta Cieśla, Monika Zaręba, Sławomir Kozieł
BACKGROUND: Level of physical fitness is related to the functional status of most of the bodily functions and so it appears to be very important to identify perinatal factors influencing physical fitness. AIM: The purpose of this study was to determine the influence of birth weight on the level of physical fitness in children 6-7years of age. SUBJECTS AND METHOD: Physical fitness was assessed using EUROFIT tests in 28,623 children, aged 6-7years, from rural areas in Poland...
May 22, 2017: Early Human Development
https://www.readbyqxmd.com/read/28544884/a-validated-uhplc-qtof-ms-method-for-quantification-of-metformin-and-teneligliptin-in-rat-plasma-application-to-pharmacokinetic-interaction-study
#4
David Paul, Lingesh Allakonda, Nanjappan Satheeshkumar
In this study a sensitive UHPLC-QTOF-MS method was developed and validated for the quantitation of the metformin (MET) and teneligliptin (TEN) in rat plasma using dapagliflozin as an internal standard (IS). Chromatographic separation were carried out on a Acquity UPLC HSS Cyano column (100mm x 2.1mm, 1.8μm) using gradient mobile phase system consisting of 0.1% formic acid and acetonitrile at a flow rate of 0.4mL/min, within a run time of 6min. Protein precipitation method was used as sample preparation approach...
May 15, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28544858/effects-of-resistance-training-on-performance-in-previously-trained-endurance-runners-a-systematic-review
#5
Manuel Alcaraz-Ibañez, Manuel Rodríguez-Pérez
The aim of this work was to identify, synthesize and evaluate the results of randomized controlled trials examining the effects of resistance training on performance indicators in previously trained endurance runners. A database search was carried out in PubMed, Science Direct, OvidSPMedLine, Wiley, Web of Science, ProQuest and Google Scholar. In accordance with the PRISMA checklist, 18 published articles dated prior to May 2016 involving 321 endurance runners were reviewed using the PEDro scale. Resistance training led to general improvements in muscular strength, running economy, muscle power factors, and direct performance in distances between 1,500 and 10,000 m...
May 25, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28544529/excess-cholesterol-inhibits-glucose-stimulated-fusion-pore-dynamics-in-insulin-exocytosis
#6
Yingke Xu, Derek K Toomre, Jonathan S Bogan, Mingming Hao
Type 2 diabetes is caused by defects in both insulin sensitivity and insulin secretion. Glucose triggers insulin secretion by causing exocytosis of insulin granules from pancreatic β-cells. High circulating cholesterol levels and a diminished capacity of serum to remove cholesterol from β-cells are observed in diabetic individuals. Both of these effects can lead to cholesterol accumulation in β-cells and contribute to β-cell dysfunction. However, the molecular mechanisms by which cholesterol accumulation impairs β-cell function remain largely unknown...
May 25, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28544415/inertial-microfluidic-cell-stretcher-imcs-fully-automated-high-throughput-and-near-real-time-cell-mechanotyping
#7
Yanxiang Deng, Steven P Davis, Fan Yang, Kevin S Paulsen, Maneesh Kumar, Rebecca Sinnott DeVaux, Xianhui Wang, Douglas S Conklin, Assad Oberai, Jason I Herschkowitz, Aram J Chung
Mechanical biomarkers associated with cytoskeletal structures have been reported as powerful label-free cell state identifiers. In order to measure cell mechanical properties, traditional biophysical (e.g., atomic force microscopy, micropipette aspiration, optical stretchers) and microfluidic approaches were mainly employed; however, they critically suffer from low-throughput, low-sensitivity, and/or time-consuming and labor-intensive processes, not allowing techniques to be practically used for cell biology research applications...
May 23, 2017: Small
https://www.readbyqxmd.com/read/28543963/ageing-is-associated-with-brown-adipose-tissue-remodelling-and-loss-of-white-fat-browning-in-female-c57bl-6-mice
#8
Leidyanne Ferreira Gonçalves, Thaissa Queiroz Machado, Camila Castro-Pinheiro, Nathalia Guimaraes de Souza, Karen Jesus Oliveira, Caroline Fernandes-Santos
Fat storage changes throughout life and affects body metabolism. Ageing impact on brown (BAT) and white adipose tissue (WAT) deserves attention, especially in females, because they are less prone to age-induced weight gain. While in male mice the impact of ageing on adipose tissue remodelling is well characterized, the effects in female mice remain largely unclear. Thus, we investigated BAT and WAT remodelling during ageing in female C57BL/6 mice. At 3 months, body weight was 24 ± 0.3 g (mean±SD), and it increased from 6 to 9 months of age (+20%, P < 0...
May 24, 2017: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/28543847/validation-of-sensewear-armband-in-children-adolescents-and-adults
#9
Guillermo Antonio Lopez, Jan Christian Brønd, Lars Bo Andersen, Magnus Dencker, Daniel Arvidsson
BACKGROUND: SenseWear Armband (SW) is a multisensor monitor to assess physical activity and energy expenditure. Its prediction algorithms have been updated periodically. PURPOSE: To validate SW in children, adolescents and adults. METHODS: The most recent SW algorithm 5.2 (SW5.2) and the previous version 2.2 (SW2.2) were evaluated for estimation of energy expenditure during semi-structured activities in 35 children, 31 adolescents and 36 adults with indirect calorimetry as reference...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543827/estimations-of-linkage-disequilibrium-effective-population-size-and-roh-based-inbreeding-coefficients-in-spanish-churra-sheep-using-imputed-high-density-snp-genotypes
#10
P K Chitneedi, J J Arranz, A Suarez-Vega, E García-Gámez, B Gutiérrez-Gil
In this study, the availability of the Ovine HD SNP BeadChip (HD-chip) and the development of an imputation strategy provided an opportunity to further investigate the extent of linkage disequilibrium (LD) at short distances in the genome of the Spanish Churra dairy sheep breed. A population of 1686 animals, including 16 rams and their half-sib daughters, previously genotyped for the 50K-chip, was imputed to the HD-chip density based on a reference population of 335 individuals. After assessing the imputation accuracy for beagle v4...
May 22, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28543791/the-association-between-eccentric-hip-abduction-strength-and-hip-and-knee-angular-movements-in-recreational-male-runners-an-explorative-study
#11
René B K Brund, Sten Rasmussen, Rasmus O Nielsen, Uwe G Kersting, Uffe Laessoe, Michael Voigt
Weak hip abductors may be related with increased hip adduction and knee abduction angular movement, which may be risk factors of lower extremity injuries. Since the role of eccentric hip abduction strength (EHAS) on hip adduction angular movement and the knee abduction angular movement (KABD) remains unclear and the purpose of the present study was to explore the association between EHAS and hip- and knee angular movement. In 100 healthy male recreational runners, EHAS was quantified using an isokinetic dynamometer, while hip- and knee angular movement were collected using pressure sensitive treadmill and Codamotion active marker system...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543734/the-effect-of-repeated-periods-of-speed-endurance-training-on-performance-running-economy-and-muscle-adaptations-113-120-characters
#12
Casper Skovgaard, Nicki Winfield Almquist, Jens Bangsbo
The effect of repeated intense training interventions was investigated in eight trained male runners (maximum oxygen uptake (VO2 -max): 59.3±3.2 ml·kg(-1) ·min(-1) , mean±SD) who performed ten speed endurance training (SET; repeated 30-s 'all-out' bouts) and ten aerobic moderate-intensity training sessions during two 40-day periods (P1 and P2) separated by ~80 days of habitual training. Before and after both P1 and P2, subjects completed an incremental test to exhaustion to determine VO2 -max and a repeated running test at 90% vVO2 -max to exhaustion (RRT) to determine short-term endurance capacity...
May 19, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543710/presentation-diagnosis-and-management-of-popliteal-artery-entrapment-syndrome-11-years-of-experience-with-61-legs
#13
Luc Corneloup, Claude Labanère, Laurent Chevalier, Jérémie Jaussaud, Aude Mignot, Laurent Gencel, Olivier Corneloup, Dominique Midy
BACKGROUND: Popliteal Artery Entrapment Syndrome (PAES) is still underdiagnosed yet it may significantly interfere with lifestyle, especially among young sportspeople, with symptoms like intermittent claudication. While case reports and small case series are sometimes published, studies with larger populations are quite rare. METHODS: This study summarizes our experience with PAES on 61 limbs (35 patients) over a period of 11 years, describing the demographics, the disease and the diagnostic and therapeutic methods used with PAES patients...
May 19, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543614/capillarys-2-flex-piercing-analytical-performance-assessment-according-to-clsi-protocols-for-hba1c-quantification
#14
Radhouene Doggui, Chaïma Abdelhafidh Sahli, Wassef Lotfi Aissa, Maroua Hammami, Maha Ben Sedrine, Rahma Mahjoub, Khemais Zouaoui, Rim Daboubi, Hajer Siala, Taieb Messaoud, Amina Bibi
HbA1c is used for monitoring diabetic balance. In this paper we report an assessment of the analytical performances of Capillarys 2 Flex Piercing (C2FP) for HbA1c measurement using CE (Capillary Electrophoresis). CLSI (Clinical and Laboratory Standard Institute) protocols are used for the evaluation of apparatus performances: precision, linearity, method comparison, truness and common interferences. HbA1c CVs average in intra-assay was 1.6% between run imprecision CV ranged from0.1 to 1.8%. The linearity was demonstrated between 4...
May 19, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28543420/from-the-foundation-up
#15
Daniel Callahan
In 2019, The Hastings Center will celebrate its fiftieth anniversary. It is more than a bit staggering to think how far we have come since 1969. When I floated the idea of a center on bioethics to my friend and neighbor, psychiatrist Willard Gaylin, at a Christmas party in 1968-even before the word "bioethics" was used-I had only the fuzziest idea of where that would take us. Neither Will nor I had run anything, nor did we know how to raise money to support an organization. We would and did learn how, but much of what we did in those early years was made up on the fly...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543309/adenovirus-vector-expressing-keratinocyte-growth-factor-using-cag-promoter-impaired-pulmonary-function-of-elastase-induced-emphysema
#16
Hiroshi Oki, Takuya Yazawa, Yasuko Baba, Yumi Kanegae, Hanako Sato, Seiko Sakamoto, Takahisa Goto, Izumu Saito, Kiyoyasu Kurahashi
Pulmonary emphysema impairs quality of life and increases mortality. Previous studies demonstrated that administration of KGF before elastase instillation prevented pulmonary emphysema in mice. We hypothesized that KGF could improve pulmonary function, and that the therapeutic administration of KGF would restore damaged lungs caused by elastase instillation in an animal model. We constructed KGF expressing adenovirus vector, which prevented bleomycin induced pulmonary fibrosis in the previous study. Adenovirus vector (1...
May 24, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28543166/chronic-emgs-in-treadmill-running-sod1-mice-reveal-early-changes-in-muscle-activation
#17
K A Quinlan, E Kajtaz, J D Ciolino, R D Imhoff-Manuel, M C Tresch, C J Heckman, V M Tysseling
To improve our understanding of early disease mechanisms and find reliable biomarkers of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease, we measured electromyogram (EMG) activity in hind limb muscles of SOD1G93A mice. In contrast to clinical diagnostic measures using EMGs, which are performed on quiescent patients, we monitored activity during treadmill running in order to detect presymptomatic changes in motor patterning. Chronic EMG electrodes were implanted into vastus lateralis (VL), biceps femoris posterior (BFP), lateral gastrocnemius (LG), and tibialis anterior (TA) in mice from postnatal day (P) 55-100, and results were assessed using linear mixed models...
May 24, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28542630/dose-dependent-effect-of-silver-nanoparticles-agnps-on-fertility-and-survival-of-drosophila-an-in-vivo-study
#18
Akanksha Raj, Prasanna Shah, Namita Agrawal
Silver nanoparticles (AgNPs) containing consumer products have been proliferating in the market due to its unique antimicrobial property, however, lack of in-depth knowledge about their potential effect on human health in a longer run is of great concern. Therefore, we investigated dose-dependent in vivo effect of AgNPs using Drosophila as a model system. Drosophila, a genetically tractable organism with distinct developmental stages, short life cycle and significant homology with human serves as an ideal organism to study nanomaterial-mediated toxicity...
2017: PloS One
https://www.readbyqxmd.com/read/28542392/acute-exercise-does-not-modify-brain-activity-and-memory-performance-in-app-ps1-mice
#19
Angelica Miki Stein, Victor Munive, Ana M Fernandez, Angel Nuñez, Ignacio Torres Aleman
Age is the main risk factor for Alzheimer´s disease (AD). With an increasingly aging population, development of affordable screening techniques to determine cognitive status will help identify population-at-risk for further follow-up. Because physical exercise is known to modulate cognitive performance, we used it as a functional test of cognitive health. Mice were submitted to treadmill running at moderate speed for 30 min, and their brain activity was monitored before and after exercise using electrocorticogram (ECG) recordings...
2017: PloS One
https://www.readbyqxmd.com/read/28542274/detecting-infection-hotspots-modeling-the-surveillance-challenge-for-elimination-of-lymphatic-filariasis
#20
Julie R Harris, Ryan E Wiegand
BACKGROUND: During the past 20 years, enormous efforts have been expended globally to eliminate lymphatic filariasis (LF) through mass drug administration (MDA). However, small endemic foci (microfoci) of LF may threaten the presumed inevitable decline of infections after MDA cessation. We conducted microsimulation modeling to assess the ability of different types of surveillance to identify microfoci in these settings. METHODS: Five or ten microfoci of radius 1, 2, or 3 km with infection marker prevalence (intensity) of 3, 6, or 10 times background prevalence were placed in spatial simulations, run in R Version 3...
May 19, 2017: PLoS Neglected Tropical Diseases
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