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https://www.readbyqxmd.com/read/29341797/visual-dependence-affects-postural-sway-responses-to-continuous-visual-field-motion-in-individuals-with-cerebral-palsy
#1
Yawen Yu, Richard T Lauer, Carole A Tucker, Elizabeth D Thompson, Emily A Keshner
The current study aimed to explore the impact of visual dependence on sensorimotor coupling of postural sway and visual motion in adults and teens with spastic cerebral palsy (CP). We hypothesized that individuals with CP would exhibit greater magnitudes of sway than healthy individuals, and the presence of visual dependence (VD) would produce instability in the direction of visual motion. Participants stood in a virtual environment in which the visual scene remained static or continuously rotated 30 degree/second in pitch-up or pitch-down...
January 17, 2018: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/29341596/core-shell-zif-8-zif-67-derived-cop-nanoparticles-embedded-n-doped-carbon-nanotube-hollow-polyhedron-for-efficient-over-all-water-splitting
#2
Yuan Pan, Kaian Sun, Shoujie Liu, Xing Cao, Konglin Wu, Weng-Chon Cheong, Zheng Chen, Yu Wang, Yang Li, Yunqi Liu, Dingsheng Wang, Qing Peng, Chen Chen, Yadong Li
The construction of highly active and stable non-noble metal electrocatalysts for hydrogen and oxygen evolution reactions electrocatalysts is a major challenge for overall water splitting. Herein, we report a novel hybrid nanostructure with CoP na-noparticles (NPs) embedded in N-doped carbon nanotube hollow polyhedron (NCNHP) through a pyrolysis-oxidation-phosphidation strategy derived from core-shell ZIF-8@ZIF-67. Benefiting from the synergistic effects between highly active CoP NPs and NCNHP, the CoP/NCNHP hybrid exhibited outstanding bifunctional electrocatalytic performances...
January 17, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29341298/multiple-signaling-systems-target-a-core-set-of-transition-metal-homeostasis-genes-using-similar-binding-motifs
#3
M E Garber, L Rajeev, A E Kazakov, J Trinh, D Masuno, M G Thompson, N Kaplan, J Luk, P S Novichkov, A Mukhopadhyay
Bacterial response to metals can require complex regulation. We report an overlapping regulation for copper and zinc resistance genes in the denitrifying bacterium, Pseudomonas stutzeri RCH2, by three two-component regulatory proteins CopR1, CopR2 and CzcR. We conducted genome-wide evaluations to identify gene targets of two paralogous regulators, CopR1 and CopR2, annotated for copper signaling, and compared the results with the gene targets for CzcR, implicated in zinc signaling. We discovered that the CopRs and CzcR have largely common targets, and cross-regulate a core set of P...
January 17, 2018: Molecular Microbiology
https://www.readbyqxmd.com/read/29341167/the-influence-of-colloid-osmotic-pressure-on-hydrostatic-pressures-in-high-and-low-flux-hemodialyzers
#4
Daniel Schneditz, Georgios Sarikakis, Maria Kontodima, Notburga Sauseng
The aim of this study was to examine the relationship between hydrostatic trans-membrane pressure (TMPh ) and colloid osmotic pressure (COP) in low-flux (LF) and high-flux (HF) dialyzers. Hydrostatic pressures were measured in dialyzers distinguished by their ultrafiltration coefficient Kuf (16 and 85 mL/h/mm Hg) under constant dialysate flow and variable blood flow (Qb ) ranging from 0 to 400 mL/min using (i) alginate (70 kDa) dissolved in dialysate, (ii) diluted, undiluted, and concentrated plasma, or (iii) whole blood at different hematocrit, all in absence of ultrafiltration (UF)...
January 17, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29340715/postural-control-and-the-relation-with-cervical-sensorimotor-control-in-patients-with-idiopathic-adult-onset-cervical-dystonia
#5
J De Pauw, R Mercelis, A Hallemans, G Van Gils, S Truijen, P Cras, W De Hertogh
Cervical dystonia (CD) is a movement disorder characterized by involuntary muscle contractions leading to an abnormal head posture or movements of the neck. Dysfunctions in somatosensory integration are present and previous data showed enlarged postural sway in stance. Postural control during quiet sitting and the correlation with cervical sensorimotor control were investigated. Postural control during quiet sitting was measured via body sway parameters in 23 patients with CD, regularly receiving botulinum toxin treatment and compared with 36 healthy controls...
January 16, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29336703/establishing-correlates-of-protection-for-vaccine-development-considerations-for-the-respiratory-syncytial-virus-vaccine-field
#6
Prasad S Kulkarni, Julia L Hurwitz, Eric A F Simões, Pedro A Piedra
Correlates of protection (CoPs) can play a significant role in vaccine development by assisting the selection of vaccine candidates for clinical trials, supporting clinical trial design and implementation, and simplifying tests of vaccine modifications. Because of this important role in vaccine development, it is essential that CoPs be defined by well-designed immunogenicity and efficacy studies, with attention paid to benefits and limitations. The respiratory syncytial virus (RSV) field is unique in that a great deal of information about the humoral response is available from basic research and clinical studies...
January 16, 2018: Viral Immunology
https://www.readbyqxmd.com/read/29334963/evaluating-the-impact-of-a-falls-prevention-community-of-practice-in-a-residential-aged-care-setting-a-realist-approach
#7
Jacqueline Francis-Coad, Christopher Etherton-Beer, Caroline Bulsara, Nicole Blackburn, Paola Chivers, Anne-Marie Hill
BACKGROUND: Falls are a major socio-economic problem among residential aged care (RAC) populations resulting in high rates of injury including hip fracture. Guidelines recommend that multifactorial prevention strategies are implemented but these require translation into clinical practice. A community of practice (CoP) was selected as a suitable model to support translation of the best available evidence into practice, as it could bring together like-minded people with falls expertise and local clinical knowledge providing a social learning opportunity in the pursuit of a common goal; falls prevention...
January 15, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29334945/blood-pressure-change-does-not-associate-with-center-of-pressure-movement-after-postural-transition-in-geriatric-outpatients
#8
Sjoerd T Timmermans, Esmee M Reijnierse, Jantsje H Pasma, Marijke C Trappenburg, Gerard J Blauw, Andrea B Maier, Carel G M Meskers
BACKGROUND: Orthostatic hypotension (OH), a blood pressure drop after postural change, is associated with impaired standing balance and falls in older adults. This study aimed to assess the association between blood pressure (BP) and a measure of quality of standing balance, i.e. Center of Pressure (CoP) movement, after postural change from supine to standing position in geriatric outpatients, and to compare CoP movement between patients with and without OH. METHODS: In a random subgroup of 75 consecutive patients who were referred to a geriatric outpatient clinic, intermittent BP measurements were obtained simultaneously with CoP measurements in mediolateral and anterior-posterior direction directly after postural change during 3 min of quiet stance with eyes open on a force plate...
January 15, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29334276/an-automatic-measure-of-progression-during-colonoscopy-correlates-to-patient-experienced-pain
#9
Louise Preisler, Mustafa Bulut, Morten Soendergaard Svendsen, Lars Bo Svendsen, Lars Konge
BACKGROUND: Colonoscopy screening and surveillance programs depend on patient's tolerable experience, which is associated with competence of the endoscopist. The Colonoscopy Progression Score (CoPS) is an automated tool based on recording of the Magnetic Scope Imager (MEI) picture in order to track progression. CoPS deliver a numeric score and a graphic map. A high score expresses a rapid and smooth progression. Aims of study were to explore the correlation between CoPS and patient experienced pain and to identity locations associated with pain...
January 15, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29334145/colloidal-cobalt-phosphide-nanocrystals-as-trifunctional-electrocatalysts-for-overall-water-splitting-powered-by-a-zinc-air-battery
#10
Hui Li, Qi Li, Peng Wen, Trey B Williams, Shiba Adhikari, Chaochao Dun, Chang Lu, Dominique Itanze, Lin Jiang, David L Carroll, George L Donati, Pamela M Lundin, Yejun Qiu, Scott M Geyer
Highly efficient and stable electrocatalysts, particularly those that are capable of multifunctionality in the same electrolyte, are in high demand for the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). In this work, highly monodisperse CoP and Co2 P nanocrystals (NCs) are synthesized using a robust solution-phase method. The highly exposed (211) crystal plane and abundant surface phosphide atoms make the CoP NCs efficient catalysts toward ORR and HER, while metal-rich Co2 P NCs show higher OER performance owing to easier formation of plentiful Co2 P@COOH heterojunctions...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29331870/postural-instability-differences-between-idiopathic-normal-pressure-hydrocephalus-and-parkinson-s-disease
#11
Yasutaka Nikaido, Toshihiro Akisue, Yoshinaga Kajimoto, Adam Tucker, Yuki Kawami, Hideyuki Urakami, Yuka Iwai, Hisatomo Sato, Tadayuki Nishiguchi, Tetsuya Hinoshita, Kenji Kuroda, Hiroshi Ohno, Ryuichi Saura
OBJECTIVES: We investigated the differences in postural control disability between idiopathic normal pressure hydrocephalus (iNPH) and Parkinson's disease (PD). PATIENTS AND METHODS: Twenty-seven iNPH patients, 20 PD patients, and 20 healthy controls (HCs) were examined using the Timed Up and Go test (TUG) and a force platform for recording the center of pressure (COP) trajectory during quiescent standing and voluntary multidirectional leaning (forward, backward, right, and left for 10 s each)...
January 10, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29328985/standing-on-a-sliding-board-affects-generation-of-anticipatory-and-compensatory-postural-adjustments
#12
Bing Chen, Yun-Ju Lee, Alexander S Aruin
Postural control is compromised in the presence of body instability. We studied anticipatory and compensatory postural adjustments people use to maintain balance while standing on an unstable surface and performing voluntary arm movements. Nine healthy participants stood on a sliding board (that was either locked and as such motionless or unlocked and as such free to move in the anterior-posterior direction) and performed fast bilateral arms flexion. Arm acceleration, bilateral electromyographic activity (EMG) of the trunk and lower extremity muscles and center of pressure (COP) displacements were recorded and analyzed within the intervals typical for the anticipatory (APAs) and compensatory (CPAs) postural adjustments...
December 28, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29327162/explication-of-a-behavioral-health-primary-care-integration-learning-collaborative-and-its-quality-improvement-implications
#13
Martha Okafor, Victor Ede, Rosemary Kinuthia, David Satcher
In an effort to tackle fragmented care in the US healthcare delivery system, we explored the use of learning collaborative (LC) to advance integration of behavioral health and primary care as one of the potential solutions to a holistic approach to the delivery of quality healthcare to individuals with physical and mental illness. How a diverse group of primary care and behavioral health providers formed a Community of Practice (CoP) with a common purpose and shared vision to advance integrated care using a LC approach is described...
January 11, 2018: Community Mental Health Journal
https://www.readbyqxmd.com/read/29326906/a-comparison-of-ground-reaction-force-components-according-to-the-foothold-heights-in-16-t-truck-during-downward-step
#14
Seung-Hyun Hyun, Che-Cheong Ryew
The aim of this study is to compare and analyze the components of ground reaction force (GRF) relative to the foothold heights during downward step of 16-t truck. Adult males (n= 10) jumped downward from each 1st, 2nd, 3rd foothold step and driver's seat orderly using hand rail. Sampling rate of force components of 3 axis (medial-lateral [ML] GRF, anterior-posterior [AP] GRF, peak vertical force [PVF]), variables (COPx, COPy, COP area) of center of pressure (COP), loading rate, and stability index (ML, AP, vertical, and dynamic postural stability index [DPSI]) processed from GRF system was cut off at 1,000 Hz...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29323932/the-effects-of-breath-alcohol-concentration-on-postural-control
#15
Dary D Fiorentino
STRUCTURED ABSTRACT Background: Two of the three standardized field sobriety tests that US law enforcement uses at roadside checks have a postural equilibrium component to them. Those tests have been validated to detect impairment caused by blood alcohol concentrations (BACs) of .08 g/dL or above. Many medical and traffic safety associations support a lower limit, and one state, Utah, has passed a law to lower the limit to .05 g/dL. Many studies have examined the effects of alcohol on postural control (of which postural equilibrium is a component), with a consensus emerging that impairment is usually found at BACs greater than ...
January 11, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29310259/facile-synthesis-of-coxp-decorated-porous-carbon-microspheres-for-ultrasensitive-detection-of-4-nitrophenol
#16
Lili Xiao, Ruiyu Xu, Fu Wang
A novel cobalt phosphide (CoxP, a mixture of CoP and Co2P) embedded within nitrogen-doped porous carbon microspheres was facilely prepared by pyrolysis of a composite precursor. The composite precursor was achieved by in-situ growth of Co-based zeolitic imidazolate framework (ZIF-67) on the Zn(PO4)x microspheres. The as-prepared CoxP decorated nitrogen-doped porous carbon microspheres (CoxP/NC) possess uniform distribution of graphite-encapsulated CoxP, a large surface area (826m2g-1) and abundant mesopores...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29306146/reactive-balance-control-in-older-adults-with-diabetes
#17
Pei-Yun Lee, Yi-Ju Tsai, Yu-Ting Liao, Yi-Ching Yang, Fen-Hwa Lu, Sang-I Lin
Diabetes mellitus is a major health problem for older adults worldwide and could be associated with impaired ability to recover balance after postural disturbances. This study compared reactive balance control in three groups of adults, young (YA), healthy non-diabetes older (nonDM-OA) and diabetes older (DM-OA). Twenty participants in each group completed a series of vision, plantar cutaneous sensitivity, grip power and lower limb strength tests. In the reactive balance test, participants stood on a force platform and used the dominant hand to pull the handle of a cord that could be suddenly released to create an imbalancing force...
December 30, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29305618/control-of-vertical-posture-while-standing-on-a-sliding-board-and-pushing-an-object
#18
Yun-Ju Lee, Bing Chen, Jing-Nong Liang, Alexander S Aruin
Voluntary pushing or translation perturbation of the support surface each induces a body perturbation that affects postural control. The objective of the study was to investigate anticipatory (APA) and compensatory (CPA) postural adjustments when pushing an object (that induces self-initiated perturbation) and standing on a sliding board (that induces translational perturbation). Thirteen healthy young participants were instructed to push a handle with both hands while standing on a sliding board that was either free to move in the anterior-posterior direction or stationary...
January 5, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29305336/circulating-osteogentic-precursor-cells-in-non-hereditary-heterotopic-ossification
#19
REVIEW
Kevin P Egan, Gustavo Duque, Mary Ann Keenan, Robert J Pignolo
Non-hereditary heterotopic ossification (NHHO) may occur after musculoskeletal trauma, central nervous system (CNS) injury, or surgery. We previously described circulating osteogenic precursor (COP) cells as a bone marrow-derived type 1 collagen+CD45+subpopulation of mononuclear adherent cells that are able of producing extraskeletal ossification in a murine in vivo implantation assay. In the current study, we performed a tissue analysis of COP cells in NHHO secondary to defined conditions, including traumatic brain injury, spinal cord injury, cerebrovascular accident, trauma without neurologic injury, and joint arthroplasty...
January 2, 2018: Bone
https://www.readbyqxmd.com/read/29304163/a-successful-backward-step-correlates-with-hip-flexion-moment-of-supporting-limb-in-elderly-people
#20
Yahiko Takeuchi
PURPOSE: The objective of this study was to determine the positional relationship between the center of mass (COM) and the center of pressure (COP) at the time of step landing, and to examine their relationship with the joint moments exerted by the supporting limb, with regard to factors of the successful backward step response. METHODS: The study population comprised 8 community-dwelling elderly people that were observed to take successive multi steps after the landing of a backward stepping...
2018: PloS One
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