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https://www.readbyqxmd.com/read/28813962/a-fundamental-study-on-how-holding-a-helium-filled-balloon-affects-stability-in-human-standing
#1
Keisuke Shima, Koji Shimatani, Gen Sato, Mami Sakata, Psiche Giannoni, Pietro Morasso
Various studies have been conducted in the field of the development/deterioration of standing and walking ability. In standing and walking control strategy, the relationship linking visual/somatosensory/vestibular-system information and physical movement is important. Researchers have previously sought to evaluate attitude control based on human sensory information. The authors have also reported that the body sway of a walking infant is mitigated when the subject holds a helium-filled balloon, with results suggesting that this approach can be applied to extend walking distance...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813926/development-of-an-intrafascicular-neural-interface-for-peripheral-nerve-implantation
#2
Namsun Chou, YooNa Kang, Ho-Seong Kang, Jeong-Dae Yun, Wonju Chun, Kyeong Jae Lee, HyunMin Moon, Ik-Kyu Choi, Donghak Byun, Inho Song, Dong-Jun Moon, Jin-Hee Moon, Byeong Han Lee, Jungsuk Kim, Sung-Keun You, Sohee Kim
This paper describes an intrafascicular neural interface for peripheral nerve implantation. The flexible penetrating microelectrode array with varying lengths (vl-FPMA), interconnection cable, wireless recording and stimulator modules were designed and fabricated to detect neural signals from the peripheral nerves or to stimulate them. The vl-FPMA consisted of silicon needles and polydimethylsiloxane (PDMS) platform supporting the needles. The length of electrode needles varied from 600 to 1000 μm. The interconnection cable was fabricated as parylene-metal-parylene sandwiched structure...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813920/compensating-for-telecommunication-delays-during-robotic-telerehabilitation
#3
Leonardo J Consoni, Adriano A G Siqueira, Hermano I Krebs
Rehabilitation robotic systems may afford better care and telerehabilitation may extend the use and benefits of robotic therapy to the home. Data transmissions over distance are bound by intrinsic communication delays which can be significant enough to deem the activity unfeasible. Here we describe an approach that combines unilateral robotic telerehabilitation and serious games. This approach has a modular and distributed design that permits different types of robots to interact without substantial code changes...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813919/adding-navigation-artificial-audition-and-vital-sign-monitoring-capabilities-to-a-telepresence-mobile-robot-for-remote-home-care-applications
#4
Sebastien Laniel, Dominic Letourneau, Mathieu Labbe, Francois Grondin, Janice Polgar, Francois Michaud
A telepresence mobile robot is a remote-controlled, wheeled device with wireless internet connectivity for bidirectional audio, video and data transmission. In health care, a telepresence robot could be used to have a clinician or a caregiver assist seniors in their homes without having to travel to these locations. Many mobile telepresence robotic platforms have recently been introduced on the market, bringing mobility to telecommunication and vital sign monitoring at reasonable costs. What is missing for making them effective remote telepresence systems for home care assistance are capabilities specifically needed to assist the remote operator in controlling the robot and perceiving the environment through the robot's sensors or, in other words, minimizing cognitive load and maximizing situation awareness...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813888/fully-embedded-myoelectric-control-for-a-wearable-robotic-hand-orthosis
#5
Franziska Ryser, Tobias Butzer, Jeremia P Held, Olivier Lambercy, Roger Gassert
To prevent learned non-use of the affected hand in chronic stroke survivors, rehabilitative training should be continued after discharge from the hospital. Robotic hand orthoses are a promising approach for home rehabilitation. When combined with intuitive control based on electromyography, the therapy outcome can be improved. However, such systems often require extensive cabling, experience in electrode placement and connection to external computers. This paper presents the framework for a stand-alone, fully wearable and real-time myoelectric intention detection system based on the Myo armband...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813843/addition-of-forelimb-training-reduces-gains-from-robotic-gait-training-in-a-rat-model-of-spinal-cord-injury
#6
Nathan D Neckel, Haining Dai, Olga C Rodriguez
To restore locomotor function following spinal cord injury the disrupted descending supraspinal drive needs to be re-connected to regions caudal to the injury. Robotic gait training aims to facilitate recovery by stimulating the proprioceptive networks of the legs in a coordinated walking pattern while the descending supraspinal connections are re-established. In incomplete injuries, it is believed that the interneuronal networks near the injury site form relay circuits to reroute the supraspinal signals through the spared tissue...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813825/research-of-the-bws-system-for-lower-extremity-rehabilitation-robot
#7
Xiao Zhang, Weida Li, Juan Li, Xiaowei Cai
Body weight support (BWS) system is increasingly used in conjunction with treadmills to assist the patients with neurological impairments. Owing to lower limbs of the patients unable to bear the whole weight during the rehabilitation training, some weight can be removed to help the patients recover the basic walking ability gradually. Therefore, considering the man-machine relationship and the effects of the rehabilitation, a wire-driven BWS system is designed. The main unit of the system is an active closed-loop controlled drive to generate the exact desired force...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813815/how-do-strength-and-coordination-recovery-interact-after-stroke-a-computational-model-for-informing-robotic-training
#8
Sumner L Norman, Joan Lobo-Prat, David J Reinkensmeyer
Robotic devices can train strength, coordination, or a combination of both. If a robotic device focuses on coordination, what happens to strength recovery, and vice versa? Understanding this interaction could help optimize robotic training. We developed a computational neurorehabilitation model to gain insight into the interaction between strength and coordination recovery after stroke. In the model, the motor system recovers by optimizing the activity of residual corticospinal cells (focally connected, excitatory and inhibitory) and reticulospinal cells (diffusely connected and excitatory) to achieve a motor task...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813744/alkaptonuria-a-case-report-with-diagnostic-challenge
#9
Vasantha L Gali, Amy M Kerkvliet, Jacob M Kusmak, Jana K Elwood
Alkaptonuria is a rare autosomal recessive metabolic disorder caused by deficiency of homogentisic acid (HGA) oxidase, the only enzyme capable of catabolizing HGA. Deficiency of this enzyme leads to excess HGA which deposits in the connective tissue. We present a case of a 64-year-old woman who was referred to the dermatology clinic for a full body mole check and skin cancer screening. Clinically she had blue/gray pigmentation of the external ear and sclera. Also she had a domed papule on the left cheek with punctate gray pigmentation which was biopsied...
August 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28813658/ccctc-binding-factor-translates-interleukin-2-and-%C3%AE-ketoglutarate-sensitive-metabolic-changes-in-t%C3%A2-cells-into-context-dependent-gene-programs
#10
Danielle A Chisolm, Daniel Savic, Amanda J Moore, Andre Ballesteros-Tato, Beatriz León, David K Crossman, Cornelis Murre, Richard M Myers, Amy S Weinmann
Despite considerable research connecting cellular metabolism with differentiation decisions, the underlying mechanisms that translate metabolite-sensitive activities into unique gene programs are still unclear. We found that aspects of the interleukin-2 (IL-2)-sensitive effector gene program in CD4(+) and CD8(+) T cells in type 1 conditions (Th1) were regulated by glutamine and alpha-ketoglutarate (αKG)-induced events, in part through changes in DNA and histone methylation states. We further identified a mechanism by which IL-2- and αKG-sensitive metabolic changes regulated the association of CCCTC-binding factor (CTCF) with select genomic sites...
August 15, 2017: Immunity
https://www.readbyqxmd.com/read/28813643/multi-connection-pattern-analysis-decoding-the-representational-content-of-neural-communication
#11
Yuanning Li, R Mark Richardson, Avniel Singh Ghuman
The lack of multivariate methods for decoding the representational content of interregional neural communication has left it difficult to know what information is represented in distributed brain circuit interactions. Here we present Multi-Connection Pattern Analysis (MCPA), which works by learning mappings between the activity patterns of the populations as a factor of the information being processed. These maps are used to predict the activity from one neural population based on the activity from the other population...
August 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28813498/phylogeography-of-bivalve-meretrix-petechialis-in-the-northwestern-pacific-indicated-by-mitochondrial-and-nuclear-dna-data
#12
Xiaoxuan Wang, Lingfeng Kong, Jun Chen, Akihiko Matsukuma, Qi Li
The marine clam Meretrix petechialis is an important economic shellfish species in Northwestern Pacific, but little is known about its phylogeographical pattern. Here, we analyzed 311 samples from 22 locations along the northwestern Pacific using combined profiling of one mitochondrial gene (the first subunit of cytochrome coxidase, COI) and one nuclear DNA marker (the internal transcribed spacer region 1, ITS-1) to investigate contemporary genetic structure and reconstruct phylogenetic history of this species...
2017: PloS One
https://www.readbyqxmd.com/read/28813307/the-innate-alarm-system-in-ptsd-conscious-and-subconscious-processing-of-threat
#13
REVIEW
Ruth A Lanius, Daniela Rabellino, Jenna E Boyd, Sherain Harricharan, Paul A Frewen, Margaret C McKinnon
The innate alarm system (IAS), comprised of functionally connected brain regions including the brainstem, amygdala, pulvinar, and frontotemporal cortex, is a fast subcortical brain network facilitating rapid responses to threat. Post-traumatic stress disorder (PTSD) features subconscious and conscious threat detection, together contributing to hyperarousal symptoms. Emerging literature identifies aberrant threat-related neurocircuitry involved in subconscious and conscious threat processing in PTSD. We review this literature, focusing on subconscious threat processing and its relation to the IAS...
April 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813249/neuroendocrine-mechanisms-for-parental-sensitivity-overview-recent-advances-and-future-directions
#14
REVIEW
James E Swain, Shao-Hsuan Shaun Ho
Early parent-infant relationships play important roles in infants' development. New parents adapt to the developing relationship with their infants to coordinate parenting behaviors in the milieu of infant needs, hormones, moods, and stress. This review highlights research from the past two years, using non-invasive brain-imaging techniques and naturalistic tasks in mothers and fathers in relation to psychological, and endocrine measures. Recent work also connects parental brain physiology with parental sensitive behavior, parent/child outcomes and parent psychotherapy...
June 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813229/cortical-networks-for-correcting-errors-in-sensorimotor-synchronization-depend-on-the-direction-of-asynchrony
#15
K J Jantzen, Benjamin R Ratcliff, McNeel G Jantzen
Recent work provides clues that different cortical mechanisms may be employed when correcting for errors in sensorimotor synchronization that increase tap-tone asynchrony compared with those that decrease it. The authors tested this hypothesis by recording 64-channel electroencephalography while participants synchronized with an auditory metronome. We systematically introduced positive and negative phase-shift perturbations that were either liminal (10%) and subliminal (3%). We used a distributed source modeling approach to evaluate oscillatory activity and connectivity of discrete cortical sources...
August 16, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28813147/synthesis-and-evaluation-of-asymmetric-acyclic-nucleoside-bisphosphonates-as-inhibitors-of-plasmodium-falciparum-and-human-hypoxanthine-guanine-xanthine-phosphoribosyltransferase
#16
Petr Špaček, Dianne T Keough, Marina Chavchich, Martin Dracinsky, Zlatko Janeba, Lieve Naesens, Michael D Edstein, Luke W Guddat, Dana Hocková
Acyclic nucleoside bisphosphonates (ANbPs) have previously been shown to be good inhibitors of human hypoxanthine-guanine phosphoribosyltransferase (HGPRT) and Plasmodium falciparum (Pf) hypoxanthine-guanine-xanthine phosphoribosyltransferase (PfHGXPRT). Based on this scaffold, a new series of ANbPs was synthesized. One of these new ANbPs, [3-(guanine-9-yl)-2-((2-phosphonoethoxy)methyl)propoxy]methylphosphonic acid, exhibited Ki values of 6 and 70 nM for human HGPRT and Pf HGXPRT, respectively. These low Ki values were achieved by inserting an extra carbon atom in the linker connecting the N9 atom of guanine to one of the phosphonate groups...
August 16, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28813145/selective-uptake-and-bioaccumulation-of-antidepressants-in-fish-from-effluent-impacted-niagara-river
#17
Prapha Arnnok, Randolph Reyes Singh, Rodjana Burakham, Alicia Pérez-Fuentetaja, Diana S Aga
The continuous release of pharmaceuticals and personal care products (PPCPs) into freshwater systems impacts the health of aquatic organisms. This study evaluates the concentrations and bioaccumulation of PPCPs and the selective uptake of antidepressants in fish from the Niagara River, which connects two of the North American Great lakes (Erie and Ontario). The Niagara River receives PPCPs from different wastewater treatment plants (WWTPs) situated along the river and Lake Erie. Of the 22 targeted PPCPs, 11 were found at part-per-billion levels in WWTP effluents and at part-per-trillion levels in river water samples...
August 16, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28813089/polyspecific-antibodies-without-persisting-antigen-in-multiple-sclerosis-neurolupus-and-guillain-barr%C3%A3-syndrome-immune-network-connectivity-in-chronic-diseases
#18
Hansotto Reiber
The polyspecific antibody synthesis in multiple sclerosis (MS) gained diagnostic relevance with the frequent combination of measles-, rubella- and varicella zoster antibodies (MRZ-antibody reaction) but their pathophysiological role remains unknown. This review connects the data for intrathecal polyspecific antibody synthesis in MS and neurolupus with observations in the blood of patients with Guillain-Barré syndrome (GBS). Simultaneously increased antibody and autoantibody titers in GBS blood samples indicate that the polyspecific antibodies are based on a general property of an immune network, supported by the deterministic day-to-day concentration variation of antibodies in normal blood...
August 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28812911/isolated-orbital-mucoceles-in-the-absence-of-obstructive-sinus-disease
#19
M A Prendes, I Perszyk, D Horkey, J Sokol, P Timoney
Orbital surgeons are quite familiar with the diagnosis and management of paranasal sinus mucoceles due their frequent involvement of the orbit. These benign masses form and expand following sinus outflow obstruction secondary to various causes including trauma, inflammation and malignancy, amongst others. The authors present two cases of isolated orbital mucoceles without associated sinus outflow obstruction. There were notably no connections between the paranasal sinuses and the lesions. The mucoceles were diagnosed following orbitotomies and excisional biopsies with confirmatory histopathology...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28812874/three-dimensional-highly-stretchable-conductors-from-elastic-fiber-mat-with-conductive-polymer-coating
#20
Shasha Duan, Zhihui Wang, Ling Zhang, Jin Liu, Chunzhong Li
The manufacture of stretchable conductors with well-reserved electrical performance under large-degree deformations via scalable processes remains of great importance. In this work, a highly stretchable 3D conductive framework consisted of polyurethane fiber mat (PUF) and poly(3,4-ethylenedioxythiophene) (PEDOT) is reported through facile approaches, electrospinning and in situ interfacial polymerization, which was then backfilled with poly(dimethylsiloxane) to obtain 3D conductors. The excellent stretchability of the 3D conductive network imparted the as-prepared electrode superior mechanical durability...
August 16, 2017: ACS Applied Materials & Interfaces
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