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https://www.readbyqxmd.com/read/28231556/compliant-support-surfaces-affect-sensory-reweighting-during-balance-control
#1
I M Schut, D Engelhart, J H Pasma, R G K M Aarts, A C Schouten
To maintain upright posture and prevent falling, balance control involves the complex interaction between nervous, muscular and sensory systems, such as sensory reweighting. When balance is impaired, compliant foam mats are used in training methods to improve balance control. However, the effect of the compliance of these foam mats on sensory reweighting remains unclear. In this study, eleven healthy subjects maintained standing balance with their eyes open while continuous support surface (SS) rotations disturbed the proprioception of the ankles...
February 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28230880/atomic-layer-deposited-ultrafine-mos2-nanocrystals-on-cobalt-foam-for-efficient-and-stable-electrochemical-oxygen-evolution
#2
Dehua Xiong, Qingqing Zhang, Wei Li, Junjie Li, Xiuli Fu, M F Cerqueira, Pedro Alpuim, Lifeng Liu
Ultrafine molybdenum sulfide (MoS2) nanocrystals are grown on a porous cobalt (Co) foam current collector by atomic layer deposition (ALD) using molybdenum hexacarbonyl and hydrogen sulfide as precursors. When used to catalyze the oxygen evolution reaction (OER), the optimal Co@MoS2 electrode, even with a MoS2 loading as small as 0.06 mg cm(-2), exhibits a large cathodic shift of ca. 200 mV in the onset potential (the potential at which the current density is 5 mA cm(-2)), a low overpotential of only 270 mV to attain an anodic current density of 10 mA cm(-2), much smaller charge transfer resistance and substantially improved long-term stability at both low and high current densities, with respect to the bare Co foam electrode, showing substantial promise for use as an efficient, low-cost and durable anode in water electrolyzers...
February 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28229144/construction-of-leaf-like-cuo-cu2o-nanocomposites-on-copper-foam-for-high-performance-supercapacitors
#3
Dong He, Guanda Wang, Guolong Liu, Hui Suo, Chun Zhao
Leaf-like CuO-Cu2O nanosheets have been prepared on copper foam by a one-step simple anodization method, which can be used as an advanced binder-free supercapacitor electrode. The performance of the CuO-Cu2O/Cu foam electrode was optimized through controlling and restraining the current density and reaction time. The prepared electrode exhibits a very high specific capacitance (1.954 F cm(-2) at a scan rate of 2 mV s(-1)), excellent durability (120% retention after 5000 cycles), remarkable rate capability (91...
February 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28228760/perturbed-microrna-expression-by-mycobacterium-tuberculosis-promotes-macrophage-polarization-leading-to-pro-survival-foam-cell
#4
Pankaj Kumar Ahluwalia, Rajan Kumar Pandey, Prabodh Kumar Sehajpal, Vijay Kumar Prajapati
Tuberculosis (TB) is one of the prevalent causes of death worldwide, with 95% of these deaths occurring in developing countries, like India. The causative agent, Mycobacterium tuberculosis (MTb) has the tenacious ability to circumvent the host's immune system for its own advantage. Macrophages are one of the phagocytic cells that are central to immunity against MTb. These are highly plastic cells dependent on the milieu and can showcase M1/M2 polarization. M1 macrophages are bactericidal in action, but M2 macrophages are anti-inflammatory in their immune response...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28227484/design-of-peripheral-edema-measurement-device-for-home-use
#5
Stephanie M George, Brandon D Langley, Elizabeth M B Weaver, Sonya R Hardin, Jianchu Yao, Stephanie M George, Brandon D Langley, Elizabeth M B Weaver, Sonya R Hardin, Jianchu Yao, Brandon D Langley, Elizabeth M B Weaver, Jianchu Yao, Sonya R Hardin, Stephanie M George
Due to improvements in cardiovascular care, more patients are living longer but ultimately developing heart failure. It is important for patients with chronic conditions, like heart failure, to self-manage and monitor their symptoms. One symptoms that can be indicative of worsening heart failure is peripheral edema. Therefore, we present a concept for a HeartSMART system capable of edema measurement in the home with remote connection to and feedback from providers. The goal of the system is to provide a tool for heart failure patients to manage their disease...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227439/three-dimensional-graphene-scaffold-for-cardiac-tissue-engineering-and-in-situ-electrical-recording
#6
S K Ameri, P K Singh, R D'Angelo, W Stoppel, L Black, S R Sonkusale, S K Ameri, P K Singh, R D'Angelo, W Stoppel, L Black, S R Sonkusale, L Black, P K Singh, W Stoppel, S R Sonkusale, R D'Angelo, S K Ameri
In this paper, we present a three-dimensional graphene foam made of few layers of CVD grown graphene as a scaffold for growing cardiac cells and recording their electrical activity. Our results show that graphene foam not only provides an excellent extra-cellular matrix (ECM) for the culture of such electrogenic cells but also enables recording of its extracellular electrical activity in-situ. Recording is possible due to graphene's excellent conductivity. In this paper, we present our results on the fabrication of the graphene scaffold and initial studies on the culture of cardiac cell lines such as HL-1 and recording of their real-time electrical activity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226883/a-simple-sensing-mechanism-for-wireless-passive-pressure-sensors
#7
John F Drazan, Michael T Wassick, Reena Dahle, Luke A Beardslee, Nathaniel C Cady, Eric H Ledet, John F Drazan, Michael T Wassick, Reena Dahle, Luke A Beardslee, Nathaniel C Cady, Eric H Ledet, Nathaniel C Cady, John F Drazan, Reena Dahle, Eric H Ledet, Luke A Beardslee, Michael T Wassick
We have developed a simple wireless pressure sensor that consists of only three electrically isolated components. Two conductive spirals are separated by a closed cell foam that deforms when exposed to changing pressures. This deformation changes the capacitance and thus the resonant frequency of the sensors. Prototype sensors were submerged and wirelessly interrogated while being exposed to physiologically relevant pressures from 10 to 130 mmHg. Sensors consistently exhibited a sensitivity of 4.35 kHz/mmHg which is sufficient for resolving physiologically relevant pressure changes in vivo...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224798/ultralight-graphene-foam-conductive-polymer-composites-for-exceptional-electromagnetic-interference-shielding
#8
Ying Wu, Zhenyu Wang, Xu Liu, Xi Shen, Qingbin Zheng, Quan Xue, Jang-Kyo Kim
Ultralight, high-performance electromagnetic interference (EMI) shielding graphene foam (GF)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites are developed by drop coating of PEDOT:PSS on cellular-structured, freestanding GFs. To enhance the wettability and the interfacial bonds with PEDOT:PSS, GFs are functionalized with 4-dodecylbenzenesulfonic acid. The GF/PEDOT:PSS composites possess an ultralow density of 18.2×10(-3) g/cm(3) and a high porosity of 98.8%, as well as an enhanced electrical conductivity by almost four folds from 11...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28223012/3d-measurements-in-conventional-x-ray-imaging-with-rgb-d-sensors
#9
Francisco Albiol, Alberto Corbi, Alberto Albiol
A method for deriving 3D internal information in conventional X-ray settings is presented. It is based on the combination of a pair of radiographs from a patient and it avoids the use of X-ray-opaque fiducials and external reference structures. To achieve this goal, we augment an ordinary X-ray device with a consumer RGB-D camera. The patient' s rotation around the craniocaudal axis is tracked relative to this camera thanks to the depth information provided and the application of a modern surface-mapping algorithm...
February 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28222258/a-simple-and-large-scale-strategy-to-prepare-flexible-graphene-tape-electrode
#10
Li Wang, Jie Yu, Yayun Zhang, Han Yang, Longfei Miao, Yonghai Song
A simple and large-scale strategy to prepare flexible graphene tape electrode (GTE) was proposed. The flexible GTE was prepared by a facile peeling method in which a piece of commercial graphite foil was firstly covered by a commercial acrylic transparent tape and then the transparent adhesive tape was quickly torn off from the graphite foil. Scanning electron microscopy results showed that some folded and wrinkled graphene layers stood up on the GTE surface to form three-dimensional (3D) porous graphene foam...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28219622/particles-adsorbed-at-various-non-aqueous-liquid-liquid-interfaces
#11
REVIEW
Miguel Angel Fernandez-Rodriguez, Bernard P Binks, Miguel Angel Rodriguez-Valverde, Miguel Angel Cabrerizo-Vilchez, Roque Hidalgo-Alvarez
Particles adsorbed at liquid interfaces are commonly used to stabilise water-oil Pickering emulsions and water-air foams. The fundamental understanding of the physics of particles adsorbed at water-air and water-oil interfaces is improving significantly due to novel techniques that enable the measurement of the contact angle of individual particles at a given interface. The case of non-aqueous interfaces and emulsions is less studied in the literature. Non-aqueous liquid-liquid interfaces in which water is replaced by other polar solvents have properties similar to those of water-oil interfaces...
February 7, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28218732/hydrophilic-dogwood-extracts-as-materials-for-reducing-the-skin-irritation-potential-of-body-wash-cosmetics
#12
Zofia Nizioł-Łukaszewska, Paweł Osika, Tomasz Wasilewski, Tomasz Bujak
A significant problem related to the use of surfactants in body wash cosmetics is their propensity to trigger skin irritations. Only scarce literature exists on the effect of plant extracts on the skin irritation potential. The present study is an attempt to determine the effect of hydrophilic dogwood extracts on the irritant potential of body wash gels. Extractants used in the study were water and mixtures of water with glycerine, water with trimethylglycine (betaine), and water with plant-derived glycol (propanediol)...
February 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28217989/comparison-of-endovenous-radiofrequency-ablation-laser-ablation-foam-sclerotherapy-and-surgical-stripping-for-great-saphenous-varicose-veins-extended-5-year-follow-up-of-a-rct
#13
Martin Lawaetz, Julie Serup, Birgit Lawaetz, Lars Bjoern, Allan Blemings, Bo Eklof, Lars Rasmussen
BACKGROUND: This study compares the outcome 5 years after treatment of varicose veins with endovenous radiofrequency ablation (RFA), endovenous laser ablation (EVLA), ultrasound guided foam sclerotherapy (UGFS) or high ligation and stripping (HL/S) by assessing technical efficacy, clinical recurrence and the rate of reoperations. METHODS: Five hundred patients (580 legs) with Great Saphenous Vein (GSV) reflux and varicose veins were randomized to one of the 4 treatments...
February 17, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28217418/maximum-repetition-performance-after-different-antagonist-foam-rolling-volumes-in-the-inter-set-rest-period
#14
Estêvão Rios Monteiro, Jakob Škarabot, Andrew D Vigotsky, Amanda Fernandes Brown, Thiago Matassoli Gomes, Jefferson da Silva Novaes
BACKGROUND: Foam rollers, or other similar devices, are a method for acutely increasing range of motion, but in contrast to static stretching, do not appear to have detrimental effects on neuromuscular performance. PURPOSE: The purpose of this study was to investigate the effects of different volumes (60 and 120 seconds) of foam rolling of the hamstrings during the inter-set rest period on repetition performance of the knee extension exercise. METHODS: Twenty-five recreationally active females were recruited for the study (27...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28216166/exposure-assessment-of-family-cosmetic-products-dedicated-to-babies-children-and-adults
#15
M P Gomez-Berrada, A S Ficheux, Z Dahmoul, A C Roudot, P J Ferret
Very few consumption and exposure data is available for family cosmetic products. The aim of the present study was to assess the consumption and the exposure to family cosmetic products used by babies, children and adults. 10 categories of products were studied: shampoo, shower gel, solid soap, cleansing lotion, emollient foam, emollient bath, cream, milk, balm and lip balm. Consumption data were obtained from 2994 participants (789 babies aged 0-3 years, 837 children aged 4-12 years and 1368 adults aged more than 18 years) included in 87 clinical safety studies...
February 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28215837/antegrade-sclerotherapy-in-adolescent-varicocele-patients
#16
D J B Keene, R M Cervellione
INTRODUCTION: In the 1970s, Tauber described the antegrade sclerotherapy technique to treat varicoceles, and reported a 10% recurrence rate. The present study aimed to evaluate paediatric success rates and the effect of modifications to the surgical technique. METHODS: A prospective study was performed of all adolescent patients undergoing antegrade sclerotherapy surgery. Each patient had an idiopathic varicocele with spontaneous venous reflux on Doppler examination, and underwent cannulation of a pampiniform plexus vein via a scrotal incision under general anaesthetic...
January 29, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28215087/microwave-initiated-facile-formation-of-ni3se4-nanoassemblies-for-enhanced-and-stable-water-splitting-in-neutral-and-alkaline-media
#17
Sengeni Anantharaj, Jeevarathinam Kennedy, Subrata Kundu
Molecular hydrogen (H2) generation through water splitting with minimum energy loss has become practically possible due to the recent evolution of high performance electrocatalysts. In this study, we had fabricated, evaluated and presented such a high performance catalyst which is the Ni3Se4 nanoassemblies that can efficiently catalyze water splitting in neutral and alkaline media. A hierarchical nanoassemblies of Ni3Se4 was fabricated by functionalizing the surface cleaned Ni foam using NaHSe solution as Se source with the assistance of microwave irradiation (300 W) for 3 min followed by 5 h of aging at room temperature (RT)...
February 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28214491/relationship-between-patient-reported-symptoms-limitations-in-daily-activities-and-psychological-impact-in-varicose-veins
#18
Rajiv Mallick, Brajesh Kumar Lal, Claire Daugherty
OBJECTIVE: The objective of this study was to evaluate the relationship between patient-reported symptoms, functional limitations, and psychological impact of varicose veins (VVs) vs pathophysiologic mechanism, incorporating demographic and behavioral factors. METHODS: We conducted a pooled analysis from two clinical studies (Efficacy and Safety Study of Polidocanol Injectable Foam for the Treatment of Saphenofemoral Junction Incompetence [VANISH-1] and Polidocanol Endovenous Microfoam Versus Vehicle for the Treatment of Saphenofemoral Junction Incompetence [VANISH-2]) in patients with VVs (superficial venous reflux only)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214438/stepwise-dynamics-of-an-anionic-micellar-film-formation-of-crown-lenses
#19
Jongju Lee, Alex Nikolov, Darsh Wasan
We studied the stepwise thinning of a microscopic circular foam film formed from an anionic micellar solution of sodium dodecyl sulfate (SDS). The foam film formed from the SDS micellar solution thins in a stepwise manner by the formation and expansion of a dark spot(s) of one layer less than the film thickness. During the last stages of film thinning (e.g., a film with one micellar layer), the dark spot expansion occurs via two steps. Initially, a small dark circular spot inside a film of several microns in size is formed, which expands at a constant rate...
January 31, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28214397/a-case-of-iv-degree-on-acute-radiation-dermatitis-in-china
#20
Zhen Shen, Ya-Hong Chen, Yue Chen, Yan Chen, Zhe Lv, Hai-Cheng Gao
This report investigates the nursing procedure of a case of adjuvant therapy of rectal cancer on IV degree of acute radiation dermatitis patients in the penis and scrotum junction. The lesion degree gradually increased. Fixation of the dressing was difficult in the penis and scrotum junction. The concept of wet healing with new dressings was used in patient. The silver ion dressings were used in inhibiting infection, and the wound was covered by the rimmed foam dressings. When it comes to the shaping period, water gel transparent paste was applied instead to cover the wound...
February 2, 2017: International Journal of Surgery Case Reports
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