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https://www.readbyqxmd.com/read/28731768/self-organized-velocity-pulses-of-dense-colloidal-suspensions-in-microchannel-flow
#1
Philipp Kanehl, Holger Stark
We present a numerical study of dense colloidal suspensions in a pressure-driven microchannel flow in two dimensions. The colloids are modeled as elastic and frictional spheres suspended in a Newtonian fluid, which we simulate using the method of multiparticle collision dynamics. The model reproduces periodic velocity and density pulse trains, traveling upstream in the microchannel, which are found in experiments conducted by Isa et al. [Phys. Rev. Lett. 102, 058302 (2009)PRLTAO0031-900710.1103/PhysRevLett...
July 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28685589/surgeon-preference-influence-and-treatment-of-thumb-carpometacarpal-arthritis
#2
Zachary Deutch, Steven R Niedermeier, Hisham M Awan
BACKGROUND: The purpose of this study was to evaluate current surgical practice patterns, the factors that influence these patterns, and overall trends in the treatment of thumb carpometacarpal osteoarthritis. METHODS: An online survey containing 14 questions was sent to all active members of the American Society for Surgery of the Hand. Information on demographics and treatments was collected. Results were anonymously uploaded to an online spreadsheet. RESULTS: A total of 823 responses were recorded...
July 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28573322/plasmonic-gold-nanoparticles-for-detection-of-fungi-and-human-cutaneous-fungal-infections
#3
Tobiloba Sojinrin, João Conde, Kangze Liu, James Curtin, Hugh J Byrne, Daxiang Cui, Furong Tian
Fungi, which are common in the environment, can cause a multitude of diseases. Warm, humid conditions allow fungi to grow and infect humans via the respiratory, digestive and reproductive tracts, genital area and other bodily interfaces. Fungi can be detected directly by microscopy, using the potassium hydroxide test, which is the gold standard and most popular method for fungal screening. However, this test requires trained personnel operating specialist equipment, including a fluorescent microscope and culture facilities...
June 2, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28571754/nonlinear-adaptive-control-based-on-fuzzy-sliding-mode-technique-and-fuzzy-based-compensator
#4
Sy Dzung Nguyen, Hoang Duy Vo, Tae-Il Seo
It is difficult to efficiently control nonlinear systems in the presence of uncertainty and disturbance (UAD). One of the main reasons derives from the negative impact of the unknown features of UAD as well as the response delay of the control system on the accuracy rate in the real time of the control signal. In order to deal with this, we propose a new controller named CO-FSMC for a class of nonlinear control systems subjected to UAD, which is constituted of a fuzzy sliding mode controller (FSMC) and a fuzzy-based compensator (CO)...
May 30, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28502732/swimming-exercise-prevents-behavioural-disturbances-induced-by-an-intracerebroventricular-injection-of-amyloid-%C3%AE-1-42-peptide-through-modulation-of-cytokine-nf-kappab-pathway-and-indoleamine-2-3-dioxygenase-in-mouse-brain
#5
Leandro Cattelan Souza, Cristiano R Jesse, Lucian Del Fabbro, Marcelo Gomes de Gomes, André Tiago Rossito Goes, Carlos Borges Filho, Cristiane Luchese, Albanin Aparecida Mielniczki Pereira, Silvana Peterini Boeira
Emerging evidence indicates that the activation of indoleamine-2,3-dioxygenase (IDO), a first and rate-limiting enzyme in the kynurenine (KYN) pathway, is involved in amyloid-beta (Aβ1-42)-neurotoxicity and Alzheimer's disease (AD) pathogenesis. Physical exercise has been considered an effective intervention in AD, attenuating or limiting their progression. Nevertheless, the neurobiological mechanisms underlying the neuroprotective effects of exercise have not yet been fully elucidated. In present study, we investigated the protective effect of an 8-week swimming training (ST) exercise on cognitive and non-cognitive functions and its role in modulating biomarkers of KYN pathway, before an intracerebroventricular (i...
May 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28469744/core-muscle-activation-in-suspension-training-exercises
#6
Giovanni Cugliari, Gennaro Boccia
A quantitative observational laboratory study was conducted to characterize and classify core training exercises executed in a suspension modality on the base of muscle activation. In a prospective single-group repeated measures design, seventeen active male participants performed four suspension exercises typically associated with core training (roll-out, bodysaw, pike and knee-tuck). Surface electromyographic signals were recorded from lower and upper parts of rectus abdominis, external oblique, internal oblique, lower and upper parts of erector spinae muscles using concentric bipolar electrodes...
February 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28445707/comparing-sprint-and-endurance-training-on-anxiety-depression-and-its-relation-with-brain-derived-neurotrophic-factor-in-rats
#7
Hossein TaheriChadorneshin, Sadegh Cheragh-Birjandi, Saeed Ramezani, Seyed-Hosein Abtahi-Eivary
Although the response of brain-derived neurotrophic factor (BDNF) has been shown to low intensity exercise training, but the effect of intensive exercise training is not clear. Also, there is insufficient information about relationship between BDNF and depression and anxiety following intensive exercise. This study aimed to investigate the effects of 6 weeks of intensive endurance training (ET) and sprint interval training (SIT) on brain BDNF and its relationship with anxiety and depression in Albino Wistar rats...
June 30, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28287901/the-acute-effects-of-bodyweight-suspension-exercise-on-muscle-activation-and-muscular-fatigue
#8
Trent E Cayot, Jakob D Lauver, Barry W Scheuermann
This investigation examined effects of two exercise modes (barbell, BB; bodyweight suspension, BWS) on muscle activation, resistance load, and fatigue. During session one, nine resistance-trained males completed an elbow flexion one-repetition maximum (1RM). During sessions two and three, subjects completed standing biceps curls to fatigue at 70% 1RM utilizing a randomized exercise mode. Surface electromyography (sEMG) recorded muscle activation of the biceps brachii, triceps brachii, anterior deltoid, posterior deltoid, rectus abdominis, and erector spinae...
July 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28268460/autonomous-vision-guided-approach-for-the-analysis-and-grading-of-vertical-suspension-tests-during-hammersmith-infant-neurological-examination-hine
#9
Prasenjit Dey, Debi Prosad Dogra, Partha Pratim Roy, Harish Bhaskar
Computer vision assisted diagnostic systems are gaining popularity in different healthcare applications. This paper presents a video analysis and pattern recognition framework for the automatic grading of vertical suspension tests on infants during the Hammersmith Infant Neurological Examination (HINE). The proposed vision-guided pipeline applies a color-based skin region segmentation procedure followed by the localization of body parts before feature extraction and classification. After constrained localization of lower body parts, a stick-diagram representation is used for extracting novel features that correspond to the motion dynamic characteristics of the infant's leg movements during HINE...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28254017/aroma-compounds-and-characteristics-of-noble-rot-wines-of-chardonnay-grapes-artificially-botrytized-in-the-vineyard
#10
Xing-Jie Wang, Yong-Sheng Tao, Yun Wu, Rong-Yan An, Zhuo-Ya Yue
Aroma characteristics and their impact volatile components of noble-rot wines elaborated from artificial botrytized Chardonnay grapes, obtained by spraying Botrytis cinerea suspension in Yuquan vineyard, Ningxia, China, were explored in this work. Dry white wine made from normal-harvested grapes and sweet wine produced from delay-harvested grapes were compared. Wine aromas were analysed by trained sensory panelists, and aroma compounds were determined by SPME-GC-MS. Results indicated that esters, fatty acids, thiols, lactones, volatile phenols and 2-nonanone increased markedly in noble-rot wines...
July 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28238964/pullout-strength-of-a-novel-hybrid-fixation-technique-tape-locking-screw%C3%A2-in-soft-tissue-acl-reconstruction-a-biomechanical-study-in-human-and-porcine-bone
#11
M Ayzenberg, D Arango, G E Gershkovich, P S Samuel, M Saing
INTRODUCTION: A novel hybrid anterior cruciate ligament (ACL) reconstruction technique known as Tape Locking Screw™ (TLS) is gaining popularity. Utilizing a suspension-type construct in conjunction with an interference screw, this technique has demonstrated successful initial clinical results with the use of quadruple hamstring graft. However, there is currently limited data available on the biomechanical strength of this fixation. This study investigates the pullout strength of the construct in human distal femora as well as in a porcine model...
June 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28226633/autonomous-vision-guided-approach-for-the-analysis-and-grading-of-vertical-suspension-tests-during-hammersmith-infant-neurological-examination-hine
#12
Prasenjit Dey, Debi Prosad Dogra, Partha Pratim Roy, Harish Bhaskar, Prasenjit Dey, Debi Prosad Dogra, Partha Pratim Roy, Harish Bhaskar, Debi Prosad Dogra, Harish Bhaskar, Prasenjit Dey, Partha Pratim Roy
Computer vision assisted diagnostic systems are gaining popularity in different healthcare applications. This paper presents a video analysis and pattern recognition framework for the automatic grading of vertical suspension tests on infants during the Hammersmith Infant Neurological Examination (HINE). The proposed vision-guided pipeline applies a color-based skin region segmentation procedure followed by the localization of body parts before feature extraction and classification. After constrained localization of lower body parts, a stick-diagram representation is used for extracting novel features that correspond to the motion dynamic characteristics of the infant's leg movements during HINE...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217415/muscle-activation-patterns-during-suspension-training-exercises
#13
Sean Harris, Elise Ruffin, Wayne Brewer, Alexis Ortiz
BACKGROUND: Suspension training (ST) has been utilized over exercises performed on a stable surface to train multiple muscle groups simultaneously to increase muscle activation and joint stability. HYPOTHESIS/PURPOSE: The purpose of this study was to determine whether ST augments muscle activation compared to similar exercises performed on a stable surface. STUDY DESIGN: Cross-sectional study. METHODS: Twenty-five healthy adults (male: 16; women: 9; BMI: 23...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28210068/use-of-an-arm-weight-bearing-combined-with-upper-limb-reaching-apparatus-to-facilitate-motor-paralysis-recovery-in-an-incomplete-spinal-cord-injury-patient-a-single-case-report
#14
Takashi Hoei, Kazumi Kawahira, Hidefumi Fukuda, Keizo Sihgenobu, Megumi Shimodozono, Tadashi Ogura
[Purpose] Training using an arm weight-bearing device combined with upper-limb reaching apparatus to facilitate motor paralysis recovery, named the "Reaching Robot", as well as Repetitive Facilitation Exercise were applied to a patient with severe impairment of the shoulder and elbow due to incomplete spinal cord injury and the effects were examined. [Subjects and Methods] A 66-year-old man with incomplete spinal cord injury participated in an upper extremity rehabilitation program involving a Reaching Robot...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28149429/physiological-nutritional-and-performance-profiles-of-brazilian-jiu-jitsu-athletes
#15
Leonardo V Andreato, Jonatas Fs Santos, João Vdc Esteves, Valeria Lg Panissa, Ursula F Julio, Emerson Franchini
This study analysed the physiological, nutritional and performance profiles of athletes practicing Brazilian jiu-jitsu. To this end, 15 athletes that practiced Brazilian jiu-jitsu (aged: 28 ± 5 years; 8 brown belts and 7 black belts; training experience: 11 ± 4 years) underwent anthropometric measurements (body composition and somatotype), dietary evaluation (24 h recall) and physical fitness tests (movement time, dynamometer handgrip, kimono grip strength, vertical jump and sit-and-reach tests). The athletes had 12...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28040448/randomized-controlled-trial-of-postoperative-belladonna-and-opium-rectal-suppositories-in-vaginal-surgery
#16
Kristina Butler, John Yi, Megan Wasson, Jennifer Klauschie, Debra Ryan, Joseph Hentz, Jeffrey Cornella, Paul Magtibay, Roseanne Kho
BACKGROUND: After vaginal surgery, oral and parenteral narcotics are used commonly for pain relief, and their use may exacerbate the incidence of sedation, nausea, and vomiting, which ultimately delays convalescence. Previous studies have demonstrated that rectal analgesia after surgery results in lower pain scores and less intravenous morphine consumption. Belladonna and opium rectal suppositories may be used to relieve pain and minimize side effects; however, their efficacy has not been confirmed...
May 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28031268/distinct-roles-of-opioid-and-dopamine-systems-in-lateral-hypothalamic-intracranial-self-stimulation
#17
Soichiro Ide, Takehiro Takahashi, Yukio Takamatsu, George R Uhl, Hiroaki Niki, Ichiro Sora, Kazutaka Ikeda
Background: Opioid and dopamine systems play crucial roles in reward. Similarities and differences in the neural mechanisms of reward that are mediated by these 2 systems have remained largely unknown. Thus, in the present study, we investigated the differences in reward function in both µ-opioid receptor knockout mice and dopamine transporter knockout mice, important molecules in the opioid and dopamine systems. Methods: Mice were implanted with electrodes into the right lateral hypothalamus (l hour)...
May 1, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27984075/moderate-aerobic-exercise-on-the-recovery-phase-of-gentamicin-induced-acute-kidney-injury-in-rats
#18
C S Oliveira, A M Rodrigues, G B Nogueira, M A Nascimento, G R Punaro, E M S Higa
INTRODUCTION: Acute kidney injury is a serious public health problem, especially in intensive care units, where patients may require dialysis support, resulting in 50% mortality. AIM: To evaluate the effects of moderate aerobic exercise on the recovery phase of acute kidney injury induced by gentamicin in rats. MAIN METHODS: Male adult Wistar rats were allocated into 4 groups: W10+R30, G10+R30, W10+EX30 and G10+EX30; W10 received water (gentamicin vehicle) and G10 received gentamicin for 10days; R30 remained resting and EX30 made exercise for 30days after gentamicin suspension...
January 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/27878483/fine-particulate-bound-polycyclic-aromatic-hydrocarbons-in-vehicles-in-rome-italy
#19
Paola Romagnoli, Catia Balducci, Angelo Cecinato, Nunziata L'Episcopo, Claudio Gariazzo, Maria Pia Gatto, Andrea Gordiani, Monica Gherardi
Urban commuters are exposed to elevated levels of air pollutants, especially in heavily polluted areas and traffic congested roads. In order to assess the contribution of commuting to citizens' exposure, measurements of fine particulate (PM2.5) and polycyclic aromatic hydrocarbons (PAHs) were carried out in cars, busses, and metro trains, within the LIFE+ EXPAH Project. Monitoring campaigns were performed in Rome, Italy, from April 2011 to August 2012. Inside the busses, the concentration of total PAHs ranged from 2...
February 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27767984/the-optimum-hematocrit
#20
Walter H Reinhart
The hematocrit (Hct) determines the oxygen carrying capacity of blood, but also increases blood viscosity and thus flow resistance. From this dual role the concept of an optimum Hct for tissue oxygenation has been derived. Viscometric studies using the ratio Hct/blood viscosity at high shear rate showed an optimum Hct of 50-60% for red blood cell (RBC) suspensions in plasma. For the perfusion of an artificial microvascular network with 5-70μm channels the optimum Hct was 60-70% for high driving pressures. With lower shear rates or driving pressures the optimum Hct shifted towards lower values...
2016: Clinical Hemorheology and Microcirculation
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