keyword
MENU ▼
Read by QxMD icon Read
search

FES—PET

keyword
https://www.readbyqxmd.com/read/28211795/a-murine-model-of-a-novel-surgical-architecture-for-proprioceptive-muscle-feedback-and-its-potential-application-to-control-of-advanced-limb-prostheses
#1
Tyler R Clites, Matthew Carty, Shriya Srinivasan, Anthony Zorzos, Hugh Herr
<i>Objective:</i> Proprioceptive mechanisms play a critical role in both reflexive and volitional lower extremity control. Significant strides have been made in the development of bionic limbs that are capable of bi-directional communication with the peripheral nervous system, but none of these systems have been capable of providing physiologically-relevant muscle-based proprioceptive feedback through natural neural pathways. In this study, we present the Agonist-antagonist Myoplastic Interface (AMI), a surgical approach with the capacity to provide graded kinesthetic feedback from a prosthesis through mechanical activation of native mechanoreceptors within residual agonist-antagonist muscle pairs...
February 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28204939/metadynamics-combined-with-auxiliary-density-functional-and-density-functional-tight-binding-methods-alanine-dipeptide-as-a-case-study
#2
Jerome Cuny, Kseniia Korchagina, Chemseddine Menakbi, Tzonka Mineva
Application of ab initio molecular dynamics to study free energy surfaces (FES) is still not commonly performed because of the extensive sampling required. Indeed, it generally necessitates computationally costly simulations of more than several hundreds of picoseconds. To achieve such studies, efficient density functional theory (DFT) formalisms, based on various levels of approximate computational schemes, have been developed, and provide a good alternative to commonly used DFT implementations. We report benchmark results on the conformational change FES of alanine dipeptide obtained with auxiliary density functional theory (ADFT) and second- and third-order density functional tight-binding (DFTB) methods coupled to metadynamics simulations...
March 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28185786/the-course-of-negative-symptoms-in-first-episode-schizophrenia-and-its-predictors-a-prospective-two-year-follow-up-study
#3
Gisela Mezquida, Bibiana Cabrera, Miquel Bioque, Silvia Amoretti, Antonio Lobo, Ana González-Pinto, Ana Espliego, Iluminada Corripio, Eduard Vieta, Josefina Castro-Fornieles, Daniel Bergé, Maria J Escartí, Ángela Ibañez, Rafael Penadés, Ana M Sánchez-Torres, Miguel Bernardo
AIMS: This study aimed to investigate the course of negative symptoms and its stability over a two-year period following a first-episode schizophrenia (FES) and the possible predictors of higher severity in this symptomatology after this period. METHODS: In this longitudinal two-year prospective follow-up study we included 268 patients with a FES, according to DSM-IV. Analysis of variance was conducted in patients who completed the full follow-up to study changes in negative symptoms over three visits...
February 6, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28166501/using-a-sniff-controller-to-self-trigger-abdominal-functional-electrical-stimulation-for-assisted-coughing-following-cervical-spinal-cord-lesions
#4
Lior Haviv, Hagit Friedman, Uri Bierman, Itzhak Glass, Anton Plotkin, Aharon Weissbrod, Sagit Shushan, Vadim Bluvshtein, Elena Aidinoff, Noam Sobel, Amiram Catz
Individuals with cervical spinal cord lesions (SCL) typically depend on caregivers to manually assist in coughing by pressing against their abdominal wall. Coughing can also be assisted by functional electric stimulation (FES) applied to abdominal muscles via surface electrodes. Efficacy of FES, however, depends on precise temporal synchronization. The sniff-controller is a trigger that enables paralyzed individuals to precisely control external devices through alterations in nasal airflow. We hypothesized that FES self-triggering by sniffcontroller may allow for effective cough timing...
January 31, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28157610/iron-reactivity-in-anoxic-sediments-in-the-r%C3%A3-a-de-vigo-nw-spain
#5
A M Ramírez-Pérez, E de Blas
The high sedimentation rates and high organic matter contents in the sediments of the Ría de Vigo (NW Spain) promote the development of anoxic conditions, determining the dynamics of elements like Fe and conditioning his speciation and reactivity. Four gravity cores were retrieved in anoxic sediments of the Ría de Vigo in November 2012. In order to understand the behavior of Fe in these complex environments different fractions of reactive iron were analyzed. The decrease in highly reactive iron and sulfide contents with depth showed the relationship between the iron and sulfur cycle in the middle and outer zones of the ría...
January 24, 2017: Chemosphere
https://www.readbyqxmd.com/read/28153965/association-of-social-support-and-family-environment-with-cognitive-function-in-peritoneal-dialysis-patients
#6
Qin Wang, Zhi-Kai Yang, Xiu-Mei Sun, Yun Du, Yi-Fan Song, Ye-Ping Ren, Jie Dong
♦ BACKGROUND: Cognitive impairment (CI) is a common phenomenon and predictive of high mortality in peritoneal dialysis (PD) patients. This study aimed to analyze the association of social support and family environment with cognitive function in PD patients. ♦ METHODS: This is a cross-sectional study of PD patients from Peking University First Hospital and the Second Affiliated Hospital of Harbin Medical University. Global cognitive function was measured using the Modified Mini-Mental State Examination (3MS), executive function was measured by the A and B trail-making tests, and other cognitive functions were measured by the Repeatable Battery for the Assessment of Neuropsychological Status...
January 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28151878/a-training-approach-to-improve-stepping-automaticity-while-dual-tasking-in-parkinson-s-disease-a-prospective-pilot-study
#7
Taylor Chomiak, Alexander Watts, Nicole Meyer, Fernando V Pereira, Bin Hu
BACKGROUND: Deficits in motor movement automaticity in Parkinson's disease (PD), especially during multitasking, are early and consistent hallmarks of cognitive function decline, which increases fall risk and reduces quality of life. This study aimed to test the feasibility and potential efficacy of a wearable sensor-enabled technological platform designed for an in-home music-contingent stepping-in-place (SIP) training program to improve step automaticity during dual-tasking (DT). METHODS: This was a 4-week prospective intervention pilot study...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28145092/dual-heteroatom-doped-carbon-nanofoam-wrapped-iron-monosulfide-nanoparticles-an-efficient-cathode-catalyst-for-li-o2-batteries
#8
Prakash Ramakrishnan, Sangaraju Shanmugam, Jae Hyun Kim
A cost-effective dual heteroatoms doped three-dimensional carbon nanofoam wrapped iron mono-sulfide (FeS) nanoparticles (nps), FeS-C acts as an efficient bi-functional catalyst for Lithium oxygen (Li-O2) battery application. The Li-O2 battery study shows this cathode exhibits a maximum deep discharge capacity of 14,777.5 mAhg-1 with a 98.1% columbic efficiency at 0.1 mAcm-2. The controlled capacity (500 mAhg-1) test of this cathode delivers a minimum polarization gap of 0.73 V at 0.1 mAcm-2 and also sustains for 100 cycles with the energy efficiency of ~64 % (1st cycle) and ~52% (100th cycle) at 0...
February 1, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28120941/persistence-of-strong-and-switchable-ferroelectricity-despite-vacancies
#9
Aldo Raeliarijaona, Huaxiang Fu
Vacancies play a pivotal role in affecting ferroelectric polarization and switching properties, and there is a possibility that ferroelectricity may be utterly eliminated when defects render the system metallic. However, sufficient quantitative understandings of the subject have been lacking for decades due to the fact that vacancies in ferroelectrics are often charged and polarization in charged systems is not translationally invariant. Here we perform first-principles studies to investigate the influence of vacancies on ferroelectric polarization and polarization switching in prototypical BaTiO3 of tetragonal symmetry...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28118620/association-of-albuminuria-and-estimated-glomerular-filtration-rate-with-functional-performance-measures-in-older-adults-with-chronic-kidney-disease
#10
Dawn F Wolfgram, Katelyn Garcia, Greg Evans, Sara Zamanian, Rocky Tang, Thomas Wiegmann, Rajeev Sharma, Ruth Campbell, Jeff Whittle
BACKGROUND: Chronic kidney disease (CKD) is increasingly common and disproportionately affects older adults. The contribution of kidney disease to the functional impairment noted in the elderly CKD population is unclear. METHODS: This is a cross-sectional analysis of a hypertensive cohort of people aged ≥75 years from the Systolic Blood Pressure Intervention Trial. We evaluated estimated glomerular filtration rate (eGFR) and urine albumin-to-creatinine ratio (UACR) as predictors of 3 measures of functional status: EuroQol-5 Dimensional (EQ-5D) score, Falls Efficacy Scale (FES) score, and gait speed...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28113775/design-and-test-of-a-closed-loop-fes-system-for-supporting-function-of-the-hemiparetic-hand-based-on-automatic-detection-using-the-microsoft-kinect-sensor
#11
Daniel Simonsen, Erika G Spaich, John Hansen, Ole K Andersen
This paper describes the design of a FES system automatically controlled in a closed loop using a Microsoft Kinect sensor, for assisting both cylindrical grasping and hand opening. The feasibility of the system was evaluated in real-time in stroke patients with hand function deficits. A hand function exercise was designed in which the subjects performed an arm and hand exercise in sitting position. The subject had to grasp one of two differently sized cylindrical objects and move it forward or backwards in the sagittal plane...
October 26, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28110234/effect-of-ethylenediamine-n-n-disuccinic-acid-edds-on-the-speciation-and-bioavailability-of-fe-2-in-the-presence-of-sulfide-in-anaerobic-digestion
#12
Pham Minh Thanh, Balachandran Ketheesan, Zhou Yan, David Stuckey
The effects of a biodegradable chelating agent, Ethylenediamine-N,N'-disuccinic acid (EDDS), on the speciation and bioavailability of iron (Fe(2+)) in anaerobic digestion were examined. Fe(2+) supplementation at 10mg/L increased methane yield, but the presence of 8mg/L sulfide led to the precipitation of Fe(2+) as FeS which limited its bioavailability. The results confirmed that the EDDS could replace common chelating agents with low biodegradability (EDTA and NTA), and improve the bioavailability of Fe(2+) by forming an Fe-EDDS complex, thereby protecting Fe(2+) from sulfide precipitation...
April 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28104245/assessing-kinematics-and-kinetics-of-functional-electrical-stimulation-rowing
#13
Adina E Draghici, Glen Picard, J Andrew Taylor, Sandra J Shefelbine
Hybrid functional electrical stimulation (FES) rowing has positive effects on cardiovascular fitness, producing significantly greater aerobic power than either upper body or FES exercise alone. However, there is minimal information on the kinematics, kinetics, and mechanical efficiency of FES-rowing in the spinal cord injured (SCI) population. This study examined the biomechanics of FES-rowing to determine how motions, forces, and aerobic demand change with increasing intensity. Six individuals with SCI and six able-bodied subjects performed a progressive aerobic capacity rowing test...
January 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28099473/the-staphylococcus-aureus-srrab-regulatory-system-modulates-hydrogen-peroxide-resistance-factors-which-imparts-protection-to-aconitase-during-aerobic-growth
#14
Ameya A Mashruwala, Jeffrey M Boyd
The SrrAB two-component regulatory system (TCRS) positively influences the transcription of genes involved in aerobic respiration in response to changes in respiratory flux. Hydrogen peroxide (H2O2) can arise as a byproduct of spontaneous interactions between dioxygen and components of respiratory pathways. H2O2 damages cellular factors including protein associated iron-sulfur cluster prosthetic groups. We found that a Staphylococcus aureus strain lacking the SrrAB two-component regulatory system (TCRS) is sensitive to H2O2 intoxication...
2017: PloS One
https://www.readbyqxmd.com/read/28096988/successful-outcome-of-three-patients-with-sickle-cell-disease-and-fat-embolism-syndrome-treated-with-intensive-exchange-transfusion
#15
Paul Greaves, Vivek Mathew, Catherine Peters, Susan Rowe, Roger J Amos, Dimitris A Tsitsikas
Fat embolism syndrome (FES) is a rare complication of sickle-cell disease (SCD) associated with extremely high mortality rates. It affects predominantly non-SS patients and those with previously mild disease. Rapid institution of exchange transfusion with an aim to reduce HbS to very low levels as soon as FES is suspected can be life-saving.
January 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28095787/the-effects-of-habitual-functional-training-on-physical-functioning-in-patients-after-hip-fracture-the-protocol-of-the-hipfrac-study
#16
Kristi Elisabeth Heiberg, Vigdis Bruun-Olsen, Astrid Bergland
BACKGROUND: The survivors after hip fracture often report severe pain and loss of physical functioning. The poor outcomes cause negative impact on the person's physical functioning and quality of life and put a financial burden on society. Rehabilitation is important to improve physical functioning after hip fracture. To maintain the continuity in rehabilitation we have an assumption that it is of utmost importance to continue and progress the functional training that already started at the hospital, while the patients are transferred to short-term stays in a nursing home before they are returning to home...
January 17, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28088382/functional-electrical-stimulation-for-foot-drop-in-multiple-sclerosis-a-systematic-review-and-meta-analysis-of-the-impact-on-gait-speed
#17
REVIEW
Linda Miller, Angus McFadyen, Anna C Lord, Rebecca Hunter, Lorna Paul, Danny Rafferty, Roy Bowers, Paul Mattison
OBJECTIVE: To review the efficacy of functional electrical stimulation (FES) used for foot drop in people with multiple sclerosis (pwMS) on gait speed in short and long walking performance tests. DATA SOURCES: Five databases (Cochrane Library, CINAHL, Embase, MEDLINE, Pubmed) and reference lists were searched. STUDY SELECTION: Studies of both observational and experimental design where gait speed data in pwMS could be extracted were included...
January 11, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28078075/a-design-method-for-fes-bone-health-therapy-in-sci
#18
Brian Andrews, James Shippen, Monica Armengol, Robin Gibbons, William Holderbaum, William Harwin
FES assisted activities such as standing, walking, cycling and rowing induce forces within the leg bones and have been proposed to reduce osteoporosis in spinal cord injury (SCI). However, details of the applied mechanical stimulus for osteogenesis is often not reported. Typically, comparisons of bone density results are made after costly and time consuming clinical trials. These studies have produced inconsistent results and are subject to sample size variations. Here we propose a design process that may be used to predict the clinical outcome based on biomechanical simulation and mechano-biology...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28078074/fes-in-europe-and-beyond-current-translational-research
#19
Christine Azevedo Coste, Winfried Mayr, Manfred Bijak, Antonio Musarò, Ugo Carraro
Capacity of adult neural and muscle tissues to respond to external Electrical Stimulation (ES) is the biological basis for the development and implementation of mobility impairment physiotherapy protocols and of related assistive technologies, e.g, Functional Electrical Stimulation (FES). All body tissues, however, respond to electrical stimulation and, indeed, the most successful application of FES is electrical stimulation of the heart to revert or limit effects of arrhythmias (Pace-makers and Defibrillators)...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28078072/multisensor-classification-system-for-triggering-fes-in-order-to-support-voluntary-swallowing
#20
Benjamin Riebold, Holger Nahrstaedt, Corinna Schultheiss, Rainer O Seidl, Thomas Schauer
In dysphagia the ability of elevating the larynx and hyoid is usually impaired. Electromyography (EMG) and Bioimpedance (BI) measurements at the neck can be used to trigger functional electrical stimulation (FES) of swallowing related muscles. Nahrstaedt et al.(1) introduced an algorithm to trigger the stimulation in phase with the voluntary swallowing to improve the airway closure and elevation speed of the larynx and hyoid. However, due to non-swallow related movements like speaking, chewing or head turning, stimulations might be unintentionally triggered...
September 15, 2016: European Journal of Translational Myology
keyword
keyword
51038
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"