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https://www.readbyqxmd.com/read/27905590/direct-measurements-of-ionic-liquid-layering-at-a-single-mica-liquid-interface-and-in-nano-films-between-two-mica-liquid-interfaces
#1
Lucy R Griffin, Kathryn L Browning, Stuart M Clarke, Alexander M Smith, Susan Perkin, M W A Skoda, Sarah E Norman
The layering of ionic liquids close to flat, charged interfaces has been identified previously through theoretical and some experimental measurements. Here we present evidence for oscillations in ion density ('layering') in a long chain ionic liquid (1-decyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide) near the interface with mica using two complementary approaches. Neutron reflection at the ionic liquid-mica interface is used to detect structure at a single interface, and surface force balance (SFB) measurements carried out with the same ionic liquid reveal oscillatory density in the liquid confined between two mica sheets...
December 1, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27900198/do-rocker-sole-shoes-influence-postural-stability-in-chronic-low-back-pain-a-randomised-trial
#2
C Sian MacRae, Duncan Critchley, Matthew Morrissey, Adam Shortland, Jeremy S Lewis
BACKGROUND: People with chronic low back pain (CLBP) demonstrate greater postural instability compared with asymptomatic individuals. Rocker-sole shoes are inherently unstable and may serve as an effective balance training device. This study hypothesised that wearing rocker-sole shoes would result in long-term improvement in barefoot postural stability in people with CLBP. METHODS: 20 participants with CLBP were randomised to wear rocker-sole or flat-sole shoes for a minimum of 2 hours each day...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900185/benefits-of-a-novel-concept-of-home-based-exercise-with-the-aim-of-preventing-aspiration-pneumonia-and-falls-in-frail-older-women-a-pragmatic-controlled-trial
#3
Katsuhiko Takatori, Daisuke Matsumoto, Munenori Nishida, Shinnichiro Matsushita, Tatsuya Noda, Tomoaki Imamura
AIM: To investigate whether home-based exercise with the aim of preventing aspiration pneumonia and accidental falls improves swallowing-related and physical functions in community-dwelling frail older women. METHODS: Participants were 266 community-dwelling frail older women in a long-term care prevention class (mean (SD): age 75 (5) years). Participants were allocated to either an intervention group or a control group. In the intervention group, participants were asked to perform, at least three times a week for 6 months, a home-based exercise programme that was specifically developed to prevent aspiration pneumonia and accidental falls...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27897410/androgen-deprivation-causes-selective-deficits-in-the-biomechanical-leg-muscle-function-of-men-during-walking-a-prospective-case-control-study
#4
Ada S Cheung, Hans Gray, Anthony G Schache, Rudolf Hoermann, Daryl Lim Joon, Jeffrey D Zajac, Marcus G Pandy, Mathis Grossmann
BACKGROUND: Although muscle mass declines with testosterone deficiency in men, previous studies of muscle function have not demonstrated consistent deficits, likely due to relatively insensitive methodology. Our objective was to determine the effects of testosterone deprivation on the biomechanical function of individual lower-limb muscles. METHODS: We conducted a 12-month prospective, observational case-control study of 34 men newly commencing androgen deprivation treatment (ADT) for prostate cancer and 29 age-matched prostate cancer controls...
August 2, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27897341/adaptive-self-assembly-behaviour-restrained-by-supramolecular-crystallization-and-molecular-recognition
#5
Seiji Shinkai, Bappaditya Roy, Takao Noguchi, Daisuke Yoshihara, Junji Sakamoto, Tatsuhiro Yamamoto
Recently, the supramolecular community is integrating different approaches to find converging ideas towards understanding the 'origin of life'. In this report, we have found an interesting adaptation trait, as like in Darwin's theory, in a bolaamphiphile molecule and established an environment friendly behaviour under non-covalent forces leading to evolve diverse assembly structures and interesting photo-physical properties. The perylene diimide (PDI)-based bolaamphiphile is used as a promising scaffold with great potential for the development of emerging supramolecular system...
November 29, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27896795/intersession-reliability-of-self-selected-and-narrow-stance-balance-testing-in-older-adults
#6
Bryan L Riemann, Kelsey Piersol
BACKGROUND: Despite the common practice of using force platforms to assess balance of older adults, few investigations have examined the reliability of postural screening tests in this population. AIM: We sought to determine the test-retest reliability of self-selected and narrow stance balance testing with eyes open and eyes closed in healthy older adults. METHODS: Thirty older adults (>65 years) completed 45 s trials of eyes open and eyes closed stability tests using self-selected and narrow stances on two separate days (1...
November 28, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27894842/energetic-basis-on-interactions-between-ferredoxin-and-ferredoxin-nadp-reductase-at-varying-physiological-conditions
#7
Misaki Kinoshita, Ju Yaen Kim, Satoshi Kume, Yuxi Lin, K Hun Mok, Yosky Kataoka, Koichiro Ishimori, Natalia Markova, Genji Kurisu, Toshiharu Hase, Young-Ho Lee
In spite of a number of studies to characterize ferredoxin (Fd):ferredoxin NADP(+) reductase (FNR) interactions at limited conditions, detailed energetic investigation on how these proteins interact under near physiological conditions and its linkage to FNR activity are still lacking. We herein performed systematic Fd:FNR binding thermodynamics using isothermal titration calorimetry (ITC) at distinct pH (6.0 and 8.0), NaCl concentrations (0-200 mM), and temperatures (19-28 °C) for mimicking physiological conditions in chloroplasts...
November 25, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27893566/validity-and-reliability-of-a-portable-balance-tracking-system-btracks-in-older-adults
#8
Susan S Levy, Katie J Thralls, Shiloah A Kviatkovsky
BACKGROUND AND PURPOSE: Falls are the leading cause of disability, injury, hospital admission, and injury-related death among older adults. Balance limitations have consistently been identified as predictors of falls and increased fall risk. Field measures of balance are limited by issues of subjectivity, ceiling effects, and low sensitivity to change. The gold standard for measuring balance is the force plate; however, its field use is untenable due to high cost and lack of portability...
November 23, 2016: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/27893564/instrumented-test-of-sensory-integration-for-balance-a-validation-study
#9
Lynn Freeman, Geetanjali Gera, Fay B Horak, Mary T Blackinton, Mark Besch, Laurie King
BACKGROUND AND PURPOSE: Abnormal postural sway is associated with an increase in risk of falls but is difficult for clinicians to accurately quantify without access to laboratory equipment. Instrumenting clinical outcome measures using body-worn movement monitors is a low-cost alternative. This is the first study to compare the modified Clinical Test of Sensory Integration for Balance (i-mCTSIB) to the laboratory test of the Sensory Organization Test (SOT) with dynamic posturography in a group of participants with Parkinson's disease (PD) and subtle balance limitations...
November 23, 2016: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/27891361/serum-frap-levels-and-pre-eclampsia-among-pregnant-women-in-a-rural-community-of-northern-india
#10
Anant Gupta, Shashi Kant, Sanjeev Kumar Gupta, Shyam Prakash, Mani Kalaivani, Chandrakant S Pandav, Sanjay Kumar Rai, Puneet Misra
INTRODUCTION: There is a balance between the oxidative and the anti-oxidative forces in human body. Some studies document decreased level of anti-oxidant in pre-eclampsia while other studies showed normal level of anti-oxidant in pre-eclampsia and the evidence is equivocal. AIM: The aim of the present study was to assess enzymatic anti-oxidant activities in pre-eclamptic women and compare it with normotensive pregnant women with period of gestation between 28 to 36 weeks...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891229/nicotine-replacement-therapy-for-agitation-and-delirium-management-in-the-intensive-care-unit-a-systematic-review-of-the-literature
#11
Melanie Kowalski, Andrew A Udy, Hayden J McRobbie, Michael J Dooley
BACKGROUND: Active smokers are prevalent within the intensive care setting and place a significant burden on healthcare systems. Nicotine withdrawal due to forced abstinence on admission may contribute to increased agitation and delirium in this patient group. The aim of this systematic review was to determine whether management of nicotine withdrawal, with nicotine replacement therapy (NRT), reduces agitation and delirium in critically ill patients admitted to the intensive care unit (ICU)...
2016: Journal of Intensive Care
https://www.readbyqxmd.com/read/27889925/deletion-of-the-vesicular-acetylcholine-transporter-from-pedunculopontine-laterodorsal-tegmental-neurons-modifies-gait
#12
Helena Janickova, Kaie Rosborough, Mohammed Al-Onaizi, Ornela Kljakic, Monica S Guzman, Robert Gros, Marco A M Prado, Vania F Prado
Postural instability and gait disturbances, common disabilities in the elderly and frequently present in Parkinson's disease (PD), have been suggested to be related to dysfunctional cholinergic signalling in the brainstem. We investigated how long-term loss of cholinergic signalling from mesopontine nuclei influence motor behaviours. We selectively eliminated the vesicular acetylcholine transporter (VAChT) in pedunculopontine and laterodorsal tegmental nuclei cholinergic neurons to generate mice with selective mesopontine cholinergic deficiency (VAChT(E)(n1-Cre-flox/flox) )...
November 27, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27888697/whole-body-organization-during-a-symmetric-bimanual-pick-up-task-in-overweight-and-obese-children
#13
Ya-Ching Hung, Melissa Mangiafreno, Simone V Gill
Information on the effects of obesity on the biomechanics of whole body movement control in children is limited. The purpose of the current study is to test the hypothesis that during a simple pick up task, overweight and obese children will organize their whole body movements differently than those in normal weight children. Twelve children who were overweight or obese (5-13 years old) and twelve age matched normal weight children participated in the study. Children picked up an empty box to waist height at a self-selected pace while kinematic and kinetic data were recorded and analyzed using a VICON system and two AMTI force plates...
November 19, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27887984/impact-of-%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb-on-age-related-functional-deficits-in-mice
#14
Michael Munroe, Yair Pincu, Jennifer Merritt, Adam Cobert, Ryan Brander, Tor Jensen, Justin Rhodes, Marni D Boppart
β-Hydroxy β-methylbutyrate (HMB) is a metabolite of the essential amino acid leucine. Recent studies demonstrate a decline in plasma HMB concentrations in humans across the lifespan, and HMB supplementation may be able to preserve muscle mass and strength in older adults. However, the impact of HMB supplementation on hippocampal neurogenesis and cognition remains largely unexplored. The purpose of this study was to simultaneously evaluate the impact of HMB on muscle strength, neurogenesis and cognition in young and aged mice...
November 22, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27883920/nano-exploration-of-organic-conditioning-film-formed-on-polymeric-surfaces-exposed-to-drinking-water
#15
Grégory Francius, Racha El Zein, Laurence Mathieu, Florence Gosselin, Armand Maul, Jean-Claude Block
Adsorption of organic macromolecules onto surfaces in contact with waters forms a so-called conditioning film and induces modifications of the surface properties. Here, we characterized conditioning films formed onto two hydrophobic materials (used as pipe liner) and immersed for 24 h in tap water. Using combination of atomic force microscopy (AFM), and chemical force microscopy (CFM), we detected some changes in roughness and hydrophilic/hydrophobic balance of the surface of the tested coupons, and also the deposition of numerous organic polymers (few millions/cm(2)) randomly distributed on the surface...
November 14, 2016: Water Research
https://www.readbyqxmd.com/read/27882910/does-nintendo-wii-balance-board-improve-standing-balance-a-randomised-controlled-trial-in-children-with-cerebral-palsy
#16
Valeska Gatica-Rojas, Guillermo Méndez-Rebolledo, Eduardo Guzman-Muñoz, Alex Soto-Poblete, Ricardo Cartes-Velásquez, Edith Elgueta-Cancino, Eduardo Cofré Lizama
BACKGROUND: Evidence on the effect of systemic exercise programs to improve the standing balance with the Nintendo Wii system is very limited and its post- treatment effectiveness is unknown in cerebral palsy (CP) patients. AIM: Primary aim was to compare the effect of Nintendo Wii balance board (Wii- therapy) and standard physiotherapy (SPT), on the performance of standing balance in children and adolescents with CP. Secondary aim was to determine the post-treatment effectiveness of Wii-therapy and SPT...
November 24, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27882640/physiological-markers-of-exercise-capacity-and-lung-disease-severity-in-cystic-fibrosis
#17
Laurie Smith, Charles C Reilly, Victoria MacBean, Caroline J Jolley, Caroline Elston, John Moxham, Gerrard F Rafferty
BACKGROUND AND OBJECTIVE: Peak aerobic capacity (VO2 peak) is an important outcome measure in cystic fibrosis (CF), but measurement is not widely available and can be influenced by patient motivation, pain and fatigue. Alternative markers of disease severity would be helpful. Neural respiratory drive, measured using parasternal intercostal muscle electromyography (EMGpara), reflects the load to capacity balance of the respiratory system and provides a composite measure of pulmonary function impairment in CF...
November 24, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27879959/balance-versus-resistance-training-on-postural-control-in-patients-with-parkinson-s-disease-a-randomised-controlled-trial
#18
Suhaila M Santos, Rubens A Da Silva, Marcelle B Terra, Isabela A Almeida, Lucio B De Melo, Henrique B Ferraz
BACKGROUND: Evidences have shown that physiotherapy programs may improve the balance of individuals with Parkinson's disease (PD); although it is not clear which specific exercise program is better. AIM: Compare the effectiveness of balance versus resistance training on postural control measures in PD patients. DESIGN: Randomised controlled trial. SETTING: The study was conducted in a physiotherapy outpatient clinic of a university hospital...
November 23, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27878849/leading-change-a-concept-analysis
#19
Heather V Nelson-Brantley, Debra J Ford
AIM: To report an analysis of the concept of leading change. BACKGROUND: Nurses have been called to lead change to advance the health of individuals, populations and systems. Conceptual clarity about leading change in the context of nursing and healthcare systems provides an empirical direction for future research and theory development that can advance the science of leadership studies in nursing. DESIGN: Concept analysis. DATA SOURCES: CINAHL, PubMed, PsycINFO, Psychology and Behavioral Sciences Collection, Health Business Elite and Business Source Premier databases were searched using the terms: leading change, transformation, reform, leadership and change...
November 23, 2016: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/27878156/synergy-between-experimental-and-computational-studies-of-aromatic-stacking-interactions
#20
REVIEW
Jung Wun Hwang, Ping Li, Ken D Shimizu
Aromatic stacking interactions are one of the most common types of non-covalent interactions. However, their fundamental origins and the ability to accurately predict their stability trends are still an active area of research. The study of aromatic stacking interactions has been particularly challenging. The interaction involves a delicate balance of multiple forces, and the aromatic surfaces can readily adopt different interaction geometries. Thus, the collaborative efforts of theoretical and experimental researchers have been essential to understand and build more accurate predictive models of aromatic stacking interactions...
November 23, 2016: Organic & Biomolecular Chemistry
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