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https://www.readbyqxmd.com/read/28527388/abiotic-transformation-of-hexabromocyclododecane-by-sulfidated-nanoscale-zerovalent-iron-kinetics-mechanism-and-influencing-factors
#1
Dan Li, Xifen Zhu, Yin Zhong, Weilin Huang, Ping'an Peng
Recent studies showed that sulfidated nanoscale zerovalent iron (S-nZVI) is a better reducing agent than nanoscale zerovalen iron (nZVI) alone for reductive dechlorination of several organic solvents such as trichloroethylene (TCE) due to the catalytic role of iron sulfide (FeS). We measured the rates of transformation of hexabromocyclododecane (HBCD) by S-nZVI and compared them to those by FeS, nZVI, and reduced sulfur species. The results showed that: i) HBCD (20 mg L(-1)) was almost completely transformed by S-nZVI (0...
May 9, 2017: Water Research
https://www.readbyqxmd.com/read/28523839/algorithm-based-pharmacotherapy-for-first-episode-schizophrenia-involuntarily-hospitalized-a-retrospective-analysis-of-real-world-practice
#2
Bunta Yoshimura, Kojiro Sato, Manabu Takaki, Norihito Yamada
BACKGROUND: Little is known about the clinical outcomes of severely ill patients with first-episode schizophrenia spectrum disorders (FES) who are considered to lack the capacity to consent to clinical trials. We investigated the feasibility of an algorithm-based pharmacotherapy (ABP) and clinical outcomes of patients with FES involuntarily hospitalized and treated with ABP. METHODS: We conducted a retrospective chart review of 160 patients admitted involuntarily between October 2012 and October 2015...
May 19, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28503316/recovery-of-supraspinal-control-of-leg-movement-in-a-chronic-complete-flaccid-paraplegic-man-after-continuous-low-frequency-pelvic-nerve-stimulation-and-fes-assisted-training
#3
Marc Possover, Axel Forman
INTRODUCTION: More than 30 years ago, functional electrical stimulation (FES) was developed as an orthotic system to be used for rehabilitation for SCI patients. In the present case report, FES-assisted training was combined with continuous low-frequency stimulation of the pelvic somatic nerves in a SCI patient. CASE PRESENTATION: We report on unexpected findings in a 41-year-old man with chronic complete flaccid paraplegia, since he was 18 years old, who underwent spinal stem cell therapy and a laparoscopic implantation of neuroprosthesis (LION procedure) in the pelvic lumbosacral nerves...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28499897/reduced-language-lateralization-in-first-episode-schizophrenia-a-near-infrared-spectroscopy-study
#4
Po-Han Chou, Wei-Hao Lin, Wang-Rung Li, Chih-Mao Huang, Chia-Wei Sun
BACKGROUND: Diminished functional lateralization in language-related areas is found in chronic schizophrenia (SZ). However, whether reduced lateralization exists at the early stage of SZ remains unclear. The present study aimed to investigate language lateralization in first episode schizophrenia (FES) using near infrared spectroscopy (NIRS) during a letter version of verbal fluency test (VFT). METHODS: A total of 28 FES patients and 33 healthy controls (HCs) underwent NIRS while performing a VFT...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28493166/psychometric-properties-of-the-fundamentals-of-endoscopic-surgery-fes-skills-examination
#5
Matthew Lineberry, E Matthew Ritter
BACKGROUND: The Fundamentals of Endoscopic Surgery (FES) manual skills examination is a simulation-based assessment of five foundational skills in endoscopic surgery. With the FES skills exam becoming part of the board certification process in general surgery, continual investigation is needed to determine the validity with which the exam is supporting inferences and decision-making about examinees, as well as how it might be improved. METHODS: The present study retrospectively analyzed performance and demographic details for the initial 344 examinees completing the FES skills exam...
May 10, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28490758/identifying-conformational-changes-with-site-directed-spin-labeling-reveals-that-the-gtpase-domain-of-hydf-is-a-molecular-switch
#6
Laura Galazzo, Lorenzo Maso, Edith De Rosa, Marco Bortolus, Davide Doni, Laura Acquasaliente, Vincenzo De Filippis, Paola Costantini, Donatella Carbonera
[FeFe]-hydrogenases catalyse the reduction of protons to hydrogen at a complex 2Fe[4Fe4S] center called H-cluster. The assembly of this active site is a multistep process involving three proteins, HydE, HydF and HydG. According to the current models, HydF has the key double role of scaffold, upon which the final H-cluster precursor is assembled, and carrier to transfer it to the target hydrogenase. The X-ray structure of HydF indicates that the protein is a homodimer with both monomers carrying two functional domains: a C-terminal FeS cluster-binding domain, where the precursor is assembled, and a N-terminal GTPase domain, whose exact contribution to cluster biogenesis and hydrogenase activation is still elusive...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28489268/interprotein-electron-transfer-between-fes-protein-nanowires-and-oxygen-tolerant-nife-hydrogenase
#7
Saravanan Rengaraj, Raoudha Haddad, Elisabeth Lojou, Nicolas Duraffourg, Michael Holzinger, Alan Le Goff, Vincent Forge
Self-assembled redox protein nanowires have been exploited as efficient electron shuttles for an oxygen-tolerant hydrogenase. An intra/inter-protein electron transfer chain has been achieved between the iron-sulfur centres of rubredoxin and the FeS cluster of [NiFe] hydrogenases. [NiFe] Hydrogenases entrapped in the intricated matrix of metalloprotein nanowires achieve a stable, mediated bioelectrocatalytic oxidation of H2 at low-overpotential.
May 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28475830/bayeswham-a-bayesian-approach-for-free-energy-estimation-reweighting-and-uncertainty-quantification-in-the-weighted-histogram-analysis-method
#8
Andrew L Ferguson
The weighted histogram analysis method (WHAM) is a powerful approach to estimate molecular free energy surfaces (FES) from biased simulation data. Bayesian reformulations of WHAM are valuable in proving statistically optimal use of the data and providing a transparent means to incorporate regularizing priors and estimate statistical uncertainties. In this work, we develop a fully Bayesian treatment of WHAM to generate statistically optimal FES estimates in any number of biasing dimensions under arbitrary choices of the Bayes prior...
May 5, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28475063/training-an-actor-critic-reinforcement-learning-controller-for-arm-movement-using-human-generated-rewards
#9
Kathleen Jagodnik, Philip Thomas, Antonie van den Bogert, Michael Branicky, Robert Kirsch
Functional Electrical Stimulation (FES) employs neuroprostheses to apply electrical current to the nerves and muscles of individuals paralyzed by spinal cord injury (SCI) to restore voluntary movement. Neuroprosthesis controllers calculate stimulation patterns to produce desired actions. To date, no existing controller is able to efficiently adapt its control strategy to the wide range of possible physiological arm characteristics, reaching movements, and user preferences that vary over time. Reinforcement learning (RL) is a control strategy that can incorporate human reward signals as inputs to allow human users to shape controller behavior...
May 2, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28472895/the-relationship-between-objective-balance-perceived-sense-of-balance-and-fear-of-falling-in-stroke-patients
#10
Semra Oguz, Ilksan Demirbuken, Bahar Kavlak, Gonul Acar, Saadet Ufuk Yurdalan, Mine Gulden Polat
OBJECTIVE: The objective of our study was to investigate the relationship between objective balance, fear of falling, and perceived sense of balance (PSB) in stroke patients. METHODS: Seventy patients aged 18-65 years with chronically developed hemiplegia or hemiparesis were enrolled in the study. Patients' objective balance scores, fear of falling, and PSB were obtained using the berg balance scale (BBS), the falls efficacy scale (FES), and a visual analog scale, respectively...
May 4, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28463229/comparative-oncogenomics-identifies-tyrosine-kinase-fes-as-a-tumor-suppressor-in-melanoma
#11
Michael Olvedy, Julie C Tisserand, Flavie Luciani, Bram Boeckx, Jasper Wouters, Sophie Lopez, Florian Rambow, Sara Aibar, Bernard Thienpont, Jasmine Barra, Corinna Köhler, Enrico Radaelli, Sophie Tartare-Deckert, Stein Aerts, Patrice Dubreuil, Joost J van den Oord, Diether Lambrechts, Paulo De Sepulveda, Jean-Christophe Marine
Identification and functional validation of oncogenic drivers are essential steps toward advancing cancer precision medicine. Here, we have presented a comprehensive analysis of the somatic genomic landscape of the widely used BRAFV600E- and NRASQ61K-driven mouse models of melanoma. By integrating the data with publically available genomic, epigenomic, and transcriptomic information from human clinical samples, we confirmed the importance of several genes and pathways previously implicated in human melanoma, including the tumor-suppressor genes phosphatase and tensin homolog (PTEN), cyclin dependent kinase inhibitor 2A (CDKN2A), LKB1, and others...
May 2, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28462794/a-randomized-controlled-study-effectiveness-of-functional-electrical-stimulation-on-wrist-and-finger-flexor-spasticity-in-hemiplegia
#12
Güldal Funda Nakipoğlu Yuzer, Burcu Köse Dönmez, Neşe Özgirgin
AIM: The objective of this study was to investigate the effectiveness of functional electrical stimulation (FES) applied to the wrist and finger extensors for wrist flexor spasticity in hemiplegic patients. METHODS: Thirty stroke patients treated as inpatients were included in the study. Patients were randomly divided into study and control groups. FES was applied to the study group. Wrist range of movement, the Modified Ashworth Scale (MAS), Rivermead Motor Assessment (RMA), Brunnstrom (BS) hand neurophysiological staging, Barthel Index (BI), and Upper Extremity Function Test (UEFT) are outcome measures...
April 24, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28452765/sut-nanotec-slri-beamline-for-x-ray-absorption-spectroscopy
#13
Wantana Klysubun, Pinit Kidkhunthod, Pongjakr Tarawarakarn, Panidtha Sombunchoo, Chanapa Kongmark, Sukit Limpijumnong, Saroj Rujirawat, Rattikorn Yimnirun, Gamolwan Tumcharern, Kajornsak Faungnawakij
The SUT-NANOTEC-SLRI beamline was constructed in 2012 as the flagship of the SUT-NANOTEC-SLRI Joint Research Facility for Synchrotron Utilization, co-established by Suranaree University of Technology (SUT), National Nanotechnology Center (NANOTEC) and Synchrotron Light Research Institute (SLRI). It is an intermediate-energy X-ray absorption spectroscopy (XAS) beamline at SLRI. The beamline delivers an unfocused monochromatic X-ray beam of tunable photon energy (1.25-10 keV). The maximum normal incident beam size is 13 mm (width) × 1 mm (height) with a photon flux of 3 × 10(8) to 2 × 10(10) photons s(-1) (100 mA)(-1) varying across photon energies...
May 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28451160/greigite-fe3s4-as-a-new-anode-material-for-high-performance-sodium-ion-batteries
#14
Qidong Li, Qiulong Wei, Wenbin Zuo, Lei Huang, Wen Luo, Qinyou An, Vasiliy O Pelenovich, Liqiang Mai, Qingjie Zhang
Transition metal dichalcogenide materials have been considered as promising anode materials for rechargeable sodium-ion batteries because of their high specific capacity and low cost. Here, we demonstrate an iron sulfide Fe3S4 as a new anode material for a rechargeable sodium-ion battery. The involved conversion mechanism has been proved when the as-prepared Fe3S4 was used as the host material for sodium storage. Remarkably, a compound FeS x with quantum size generated by conversion reaction overcame the kinetic and thermodynamic constraints of chemical conversion to achieve superior cycling and rate capability...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28449860/timing-of-definitive-fixation-of-major-long-bone-fractures-can-fat-embolism-syndrome-be-prevented
#15
Taco J Blokhuis, Hans-Christoph Pape, Jan-Paul Frölke
Fat embolism is common in patients with major fractures, but leads to devastating consequences, named fat embolism syndrome (FES) in some. Despite advances in treatment strategies regarding the timing of definitive fixation of major fractures, FES still occurs in patients. In this overview, current literature is reviewed and optimal treatment strategies for patients with multiple traumatic injuries, including major fractures, are discussed. Considering the multifactorial etiology of FES, including mechanical and biochemical pathways, FES cannot be prevented in all patients...
April 24, 2017: Injury
https://www.readbyqxmd.com/read/28444253/fear-of-falling-in-people-with-multiple-sclerosis-which-clinical-characteristics-are-important
#16
Hanan Khalil, Alham Al-Shorman, Khalid El-Salem, Nour Abdo, Alia A Alghwiri, Aseel Aburub, Sarah Shalabi, Firas Al-Mustafa
Background.: Fear of falling (FOF) is an important risk indicator for health related outcomes and quality of life in patients with multiple sclerosis (MS). However, factors associated with FOF in MS are not well investigated. Objectives.: This study was done to explore predictors of FOF in this population. Methods.: Seventy relapsing remitting patients with MS were evaluated. FOF was assessed using Fall Efficacy Scale-International (FES-I)...
April 21, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28441365/efficacy-and-safety-of-3-nasal-packing-materials-used-after-functional-endoscopic-sinus-surgery-for-chronic-rhinosinusitis-a-comparative-study-in-china
#17
Xi-Ling Zheng, Yu-Xiang Zhao, Min Xu
BACKGROUND This study aimed to investigate the efficacy and safety of 3 nasal packing products (silicone tube, Beschitin-F, and Aquacel1-Ag) after functional endoscopic sinus surgery (FESS) for chronic rhinosinusitis (CRS) patients in China. MATERIAL AND METHODS Sixty-six CRS patients undergoing FESS surgery were randomly divided into 3 groups (22 patients in each group): the silicone tube group, the Beschitin-F group, and the Aquacel1-Ag group. Postoperative headache, nasal pain, nasal bleeding, and swelling of the nasal mucosa were observed at 1 month after FESS surgery...
April 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28436827/reductive-precipitation-of-sulfate-and-soluble-fe-iii-by-desulfovibrio-vulgaris-electron-donor-regulates-intracellular-electron-flow-and-nano-fes-crystallization
#18
Chen Zhou, Yun Zhou, Bruce E Rittmann
Fully understanding the metabolism of SRB provides fundamental guidelines for allowing the microorganisms to provide more beneficial services in water treatment and resource recovery. The electron-transfer pathway of sulfate respiration by Desulfovibrio vulgaris is well studied, but still partly unresolved. Here we provide deeper insight by comprehensively monitoring metabolite changes during D. vulgaris metabolism with two electron donors, lactate and pyruvate, in presence or absence of citrate-chelated soluble Fe(III) as an additional competing electron acceptor...
April 19, 2017: Water Research
https://www.readbyqxmd.com/read/28435341/empowering-patients-of-a-mental-rehabilitation-center-in-a-low-resource-context-a-moroccan-experience-as-a-case-study
#19
Hicham Khabbache, Abdelhak Jebbar, Nadia Rania, Marie-Chantal Doucet, Ali Assad Watfa, Joël Candau, Mariano Martini, Anna Siri, Francesco Brigo, Nicola Luigi Bragazzi
Mental, neurological and substance use (MNS) disorders represent a major source of disability and premature mortality worldwide. However, in developing countries patients with MNS disorders are often poorly managed and treated, particularly in marginalized, impoverished areas where the mental health gap and the treatment gap can reach 90%. Efforts should be made in promoting help by making mental health care more accessible. In this article, we address the challenges that psychological and psychiatric services have to face in a low-resource context, taking our experience at a Moroccan rehabilitation center as a case study...
2017: Psychology Research and Behavior Management
https://www.readbyqxmd.com/read/28431452/-treatment-options-for-neurogenic-drop-foot-a-systematic-literature-research
#20
Eike Jakubowitz, Daiwei Yao, Henning Windhagen, Christina Stukenborg-Colsman, Anna Thomann, Kiriakos Daniilidis
Background Neurogenic drop foot may be caused by central or peripheral lesions of the nervous system. Depending on whether the first or second motor neuron is damaged, a flaccid or spastic drop foot develops. Spastic drop foot persists as a residual long-term complication after stroke in about 14 % of patients. Various conservative and surgical treatment options are available. Methods This article is based on a systematic literature review for medical evidence of functional electrical stimulation (FES) with the keywords "functional electrical stimulation AND drop foot" and "functional electrical stimulation AND gait AND stroke" in PubMed and Cochrane databases...
April 21, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
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