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https://www.readbyqxmd.com/read/29159418/reliability-and-convergent-validity-of-the-five-step-test-in-people-with-chronic-stroke
#1
Shamay S M Ng, Mimi M Y Tse, Eric W C Tam, Cynthia Y Y Lai
OBJECTIVES: (i) To estimate the intra-rater, inter-rater and test-retest reliabilities of the Five-Step Test (FST), as well as the minimum detectable change in FST completion times in people with stroke. (ii) To estimate the convergent validity of the FST with other measures of stroke-specific impairments. (iii) To identify the best cut-off times for distinguishing FST performance in people with stroke from that of healthy older adults. DESIGN: A cross-sectional study...
November 17, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29159288/extreme-enrichment-in-atmospheric-15-n-15-n
#2
Laurence Y Yeung, Shuning Li, Issaku E Kohl, Joshua A Haslun, Nathaniel E Ostrom, Huanting Hu, Tobias P Fischer, Edwin A Schauble, Edward D Young
Molecular nitrogen (N2) comprises three-quarters of Earth's atmosphere and significant portions of other planetary atmospheres. We report a 19 per mil (‰) excess of (15)N(15)N in air relative to a random distribution of nitrogen isotopes, an enrichment that is 10 times larger than what isotopic equilibration in the atmosphere allows. Biological experiments show that the main sources and sinks of N2 yield much smaller proportions of (15)N(15)N in N2. Electrical discharge experiments, however, establish (15)N(15)N excesses of up to +23‰...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29158959/the-relationship-between-pre-operative-and-twelve-week-post-operative-y-balance-and-quadriceps-strength-in-athletes-with-an-anterior-cruciate-ligament-tear
#3
Cassidy Hallagin, J Craig Garrison, Kalyssa Creed, James M Bothwell, Shiho Goto, Joseph Hannon
Background: Pre-operative quadriceps strength may have a positive influence on post-operative function and outcomes at time of return to sport. Little consideration has been given to quadriceps strength during the early post-operative timeframes. Twelve-week post-operative anterior cruciate ligament reconstruction (ACL-R) is considered a critical time point for progression in the rehabilitation process. There is currently limited research looking at the relationship between clinical measurements pre-operatively and at 12-weeks following ACL-R...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29158956/validity-of-functional-screening-tests-to-predict-lost-time-lower-quarter-injury-in-a-cohort-of-female-collegiate-athletes
#4
P David Walbright, Nicole Walbright, Heidi Ojha, Todd Davenport
Background: Lower quarter injuries account for more than 50% of all injuries in collegiate athletics. Neuromuscular screening tests could potentially identify athletes who are at risk for sustaining an injury. While previous research has studied individual tests, the authors of this paper are unaware of any study that has compared diagnostic accuracy of multiple neuromuscular screening tests within one study cohort. Hypothesis/Purpose: The purpose of this study was to examine the accuracy of three common neuromuscular screening tests to predict the occurrence of a lower quarter injury in female collegiate volleyball and basketball players...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29156378/effect-of-robotic-assisted-gait-rehabilitation-on-dynamic-equilibrium-control-in-the-gait-of-children-with-cerebral-palsy
#5
L Wallard, G Dietrich, Y Kerlirzin, J Bredin
Due to the intensity and repetition of movement, roboticassisted gait training therapy could have a beneficial effect on the recovery and improvement of postural and locomotor functions of the patient. This study sought to highlight the effects of robotic-assisted gait rehabilitation in gait of children with Cerebral Palsy (CP). We analyzed the different strategies before and after this rehabilitation which was used in order to generate forward motion while maintaining balance. Data were collected by a motion analysis system (Vicon® - Oxford Metrics, Oxford, UK)...
November 11, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29154264/the-effect-of-a-single-massage-based-on-the-tensegrity-principle-on-postural-stability-in-young-women
#6
Błażej Cieślik, Ireneusz Podsiadły, Michał Kuczyński, Bożena Ostrowska
OBJECTIVE: The aim of this study was to investigate the effects of normalized muscle tension via tensegrity-based massage on postural stability in a sample of female young adults. METHODS: Nineteen females aged 21.8 ± 1.9 years were recruited presenting abnormal tension at muscles adhering to any of the following structural sites: superior iliac spine, lateral sacropelvic surface, linea aspera at 1/2 of femur length, and superior nuchal line of the occiput. Balance and postural control were assessed during bipedal stance using a force platform in multiple conditions: hard surface or soft foam surface with the head in either a neutral posture or tilted backward...
November 6, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29154128/discrete-circuits-support-generalized-versus-context-specific-vocal-learning-in-the-songbird
#7
Lucas Y Tian, Michael S Brainard
Motor skills depend on the reuse of individual gestures in multiple sequential contexts (e.g., a single phoneme in different words). Yet optimal performance requires that a given gesture be modified appropriately depending on the sequence in which it occurs. To investigate the neural architecture underlying such context-dependent modifications, we studied Bengalese finch song, which, like speech, consists of variable sequences of "syllables." We found that when birds are instructed to modify a syllable in one sequential context, learning generalizes across contexts; however, if unique instruction is provided in different contexts, learning is specific for each context...
November 15, 2017: Neuron
https://www.readbyqxmd.com/read/29153551/remote-sensing-based-deforestation-analysis-in-mahanadi-and-brahmaputra-river-basin-in-india-since-1985
#8
M D Behera, P Tripathi, P Das, S K Srivastava, P S Roy, C Joshi, P R Behera, J Deka, P Kumar, M L Khan, O P Tripathi, T Dash, Y V N Krishnamurthy
Land use and land cover (LULC) change has been recognized as a key driver of global climate change by influencing land surface processes. Being in constant change, river basins are always subjected to LULC changes, especially decline in forest cover to give way for agricultural expansion, urbanization, industrialization etc. We used on-screen digital interpretation technique to derive LULC maps from Landsat images at three decadal intervals i.e., 1985, 1995 and 2005 of two major river basins of India. Rain-fed, Mahanadi river basin (MRB) attributed to 55% agricultural area wherein glacier-fed, Brahmaputra river basin (BRB) had only 16% area under agricultural land...
November 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29153410/balancing-ethics-and-care-in-disorders-of-consciousness
#9
Laura Y Cabrera, Judy Illes
No abstract text is available yet for this article.
November 15, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/29153170/a-100-year-review-stress-physiology-including-heat-stress
#10
R J Collier, B J Renquist, Y Xiao
Stress is an external event or condition that places a strain on a biological system. The animal response to a stress involves the expenditure of energy to remove or reduce the impact of the stress. This increases maintenance requirements of the animal and results in loss of production. The biological response to stress is divided into acute and chronic phases, with the acute phase lasting hours to a few days and the chronic phase lasting several days to weeks. The acute response is driven by homeostatic regulators of the nervous and endocrine systems and the chronic phase by homeorhetic regulators of the endocrine system...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29146150/the-effect-of-cold-acclimation-on-active-ion-transport-in-cricket-ionoregulatory-tissues
#11
Lauren E Des Marteaux, Soheila Khazraeenia, Gil Y Yerushalmi, Andrew Donini, Natalia G Li, Brent J Sinclair
Cold-acclimated insects defend ion and water transport function during cold exposure. We hypothesized that this is achieved via enhanced active transport. The Malpighian tubules and rectum are likely targets for such transport modifications, and recent transcriptomic studies indicate shifts in Na(+)-K(+) ATPase (NKA) and V-ATPase expression in these tissues following cold acclimation. Here we quantify the effect of cold acclimation (one week at 12°C) on active transport in the ionoregulatory organs of adult Gryllus pennsylvanicus field crickets...
November 13, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29143709/acute-and-chronic-cold-exposure-differentially-affects-the-browning-of-porcine-white-adipose-tissue
#12
Y Gao, N R Qimuge, J Qin, R Cai, X Li, G Y Chu, W J Pang, G S Yang
Piglets are characteristically cold intolerant and thus susceptible to high mortality. However, browning of white adipose tissue (WAT) can induce non-shivering thermogenesis as a potential strategy to facilitate the animal's response to cold. Whether cold exposure can induce browning of subcutaneous WAT (sWAT) in piglets in a similar manner as it can in humans remains largely unknown. In this study, piglets were exposed to acute cold (4°C, 10 h) or chronic cold exposure (8°C, 15 days), and the genes and proteins of uncoupling protein 1 (UCP1)-dependent and independent thermogenesis, mitochondrial biogenesis, lipogenic and lipolytic processes were analysed...
November 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29141380/-the-analysis-of-anesthetic-management-for-renal-cell-carcinoma-with-associated-inferior-vena-cava-tumor-thrombus
#13
H Zeng, X Y Rong, Y Wang, X Y Guo
Objective: To explore the key points of anesthetic management for renal cell carcinoma combined with inferior vena cava (IVC) tumor thrombus. Methods: Twenty-seven cases of renal cell carcinoma with inferior vena cava (IVC) tumor thrombus underwent radical nephrectomy and inferior caval venous thrombectomy were reviewed retrospectively during January 2014 to January 2017 in our hospital.Analyzed data includs demographics, classification of tumor, perioperative anesthetic management and monitoring approaches, IVC clamping time , vital signs during cardiopulmonary bypass(CPB), estimated blood loss (EBL), usage of blood products, hospitalization time and ICU time , as well as postoperative outcomes...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141358/-effect-of-different-tourniquet-releasing-strategy-on-blood-loss-in-total-knee-arthroplasty
#14
Y Li, M Lu, H Tian, Z J Li, K Zhang
Objective: To explore the influences on peri-operative blood loss and postoperative blood transfusion in primary total knee arthroplasty when using different methods to release the pneumatic tourniquet. Methods: From January 2015 to December 2016, 484 patients with osteoarthritis were enrolled, undergoing primary unilateral total knee arthroplasty in the Orthopedics Department of Peking University Third Hospital. Retrospective data was used, and all the patients had been operated on by three independent working groups...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29136220/interactions-of-dietary-protein-and-threonine-on-growth-performance-in-pekin-ducklings-from-1-to-14-days-of-age
#15
Y Jiang, Y W Zhu, M Xie, J Tang, Z G Wen, S Y Qiao, S S Hou
The present study was conducted to investigate the effects of dietary crude protein (CP) on threonine requirements by determining the interactions of dietary CP levels (16.0, 17.5, 19.0, 20.5, and 22.0%) and supplemental threonine levels (0, 0.07, 0.14, 0.21, and 0.28%) on growth performance of Pekin ducks from 1 to 14 days of age. A total of 1,200 one-day-old male Pekin ducks was randomly allotted to 1 of 25 dietary treatments with 6 replicate pens of 8 birds per pen for each treatment. The results showed that dietary CP and threonine levels affected the average daily feed intake (ADFI, P < 0...
November 9, 2017: Poultry Science
https://www.readbyqxmd.com/read/29136192/assessing-the-hydration-status-of-children-with-chronic-kidney-disease-and-on-dialysis-a-comparison-of-techniques
#16
Caroline S Y Eng, Devina Bhowruth, Mark Mayes, Lynsey Stronach, Michelle Blaauw, Amy Barber, Lesley Rees, Rukshana C Shroff
Background: Fluid balance is pivotal in the management of children with chronic kidney disease (CKD) and on dialysis. Although many techniques are available to assess fluid status, there are only a few studies for children, of which none have been comparable against cardiovascular outcome measures. Methods: We performed a longitudinal study in 30 children with CKD5-5D and 13 age-matched healthy controls (71 measurements) to determine a correlation between optimal weight by bioimpedance spectroscopy (Wt-BIS) and clinical assessment (Wt-CA)...
November 9, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29134752/ideal-bandgap-organic-inorganic-hybrid-perovskite-solar-cells
#17
Zhibin Yang, Adharsh Rajagopal, Alex K-Y Jen
Extremely high power conversion efficiencies (PCEs) of ≈20-22% are realized through intensive research and development of 1.5-1.6 eV bandgap perovskite absorbers. However, development of ideal bandgap (1.3-1.4 eV) absorbers is pivotal to further improve PCE of single junction perovskite solar cells (PVSCs) because of a better balance between absorption loss of sub-bandgap photons and thermalization loss of above-bandgap photons as demonstrated by the Shockley-Queisser detailed balanced calculation. Ideal bandgap PVSCs are currently hindered by the poor optoelectronic quality of perovskite absorbers and their PCEs have stagnated at <15%...
November 14, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29134744/acute-oral-sodium-propionate-supplementation-raises-resting-energy-expenditure-and-lipid-oxidation-in-fasted-humans
#18
Edward S Chambers, Claire S Byrne, Karen Aspey, Yanjie Chen, Saadiyah Khan, Douglas J Morrison, Gary Frost
Short chain fatty acids (SCFAs), produced from fermentation of dietary fibre by the gut microbiota, have been suggested to modulate energy metabolism. Previous work using rodent models have demonstrated that oral supplementation of the SCFA propionate raises resting energy expenditure (REE) by promoting lipid oxidation. The objective of this study was to investigate the effects of oral sodium propionate on REE and substrate metabolism in humans. Eighteen healthy volunteers (9 females and 9 males; Age: 25±1 y; Body Mass Index: 24...
November 13, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29132543/intravenous-administration-of-functionalized-magnetic-iron-oxide-nanoparticles-does-not-induce-cns-injury-in-the-rat-influence-of-spinal-cord-trauma-and-cerebrolysin-treatment
#19
Preeti K Menon, Aruna Sharma, José V Lafuente, Dafin F Muresanu, Zoraida P Aguilar, Y Anderw Wang, Ranjana Patnaik, Herbert Mössler, Hari S Sharma
Influence of iron oxide magnetic nanoparticles (IOMNPs, 10nm in diameter, 0.25 or 0.50mg/mL in 100μL, i.v.) on the blood-brain barrier (BBB) permeability, edema formation, and neuronal or glial changes within 4-24h after administration was examined in normal rats and after a focal spinal cord injury (SCI). Furthermore, effect of cerebrolysin, a balanced composition of several neurotrophic factors, and active peptide fragments was also evaluated on IOMNP-induced changes in central nervous system (CNS) pathology...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29131268/correlation-of-insulin-like-growth-factor-1-and-osteoarthritic-cartilage-degradation-a-spontaneous-osteoarthritis-in-guinea-pig
#20
F-Y Wei, J K Lee, L Wei, F Qu, J-Z Zhang
OBJECTIVE: The pathogenesis of osteoarthritis centers on the imbalance between catabolic and anabolic processes in cartilage metabolism. Insulin growth factor 1 (IGF-1) has been shown to have anabolic effects in cartilage in vitro. This study aim to determine whether IGF-1 on cartilage is associated with loss of chondrocyte and extracellular matrix breakdown using the Hartley guinea pig model. MATERIALS AND METHODS: Cartilage from the medial and lateral tibial plateau of 6-month and 12-month old Hartley guinea pigs were used for this study...
October 2017: European Review for Medical and Pharmacological Sciences
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