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https://www.readbyqxmd.com/read/28901749/a-highly-stretchable-and-washable-all-yarn-based-self-charging-knitting-power-textile-composed-of-fiber-triboelectric-nanogenerators-and-supercapacitors
#1
Kai Dong, Yi-Cheng Wang, Jianan Deng, Yejing Dai, Steven L Zhang, Haiyang Zou, Bohong Gu, Baozhong Sun, Zhong Lin Wang
Rapid advancements in stretchable and multifunctional wearable electronics impose a challenge on corresponding power devices that they should have comparable portability and stretchability. Here, we report a highly stretchable and washable all-yarn-based self-charging knitting power textile that enables both biomechanical energy harvesting and simultaneously energy storing by hybridizing triboelectrical nanogenerator (TENG) and supercapacitor (SC) into one fabric. With the weft-knitting technique, the power textile is qualified with high elasticity, flexibility, and stretchability, which can adapt to complex mechanical deformations...
September 15, 2017: ACS Nano
https://www.readbyqxmd.com/read/28835145/knitters-in-a-day-center-the-significance-of-social-participation-for-people-with-mild-to-moderate-dementia
#2
Trude Gjernes
This article explores how people with dementia interact and solve problems while participating in social activities. The present article highlights social participation and interaction among elderly women with mild dementia who engaged in knitting as their main activity. The data were collected through participant observation at a day center in a Norwegian city, and the analysis revealed that the social activity of knitting facilitated conversations about different topics, required various forms of memory and problem solving, and involved different participant statuses...
August 1, 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28831396/association-between-serum-homocysteine-level-and-obstructive-sleep-apnea-a-meta-analysis
#3
REVIEW
Kun Li, Jing Zhang, Yanwen Qin, Yong-Xiang Wei
BACKGROUND: Obstructive sleep apnea (OSA) is a common problem that affects human health. Researches have reported a variety of results with reference to the association between OSA and serum homocysteine (Hcy) level. This meta-analysis is proposed to figure out the association between serum Hcy level and OSA. METHODS: Eligible studies were identified via searching PubMed, Embase, and China National Knowledge Infrastructure (CNKI). Two independent reviewers reviewed studies...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28821052/industrial-scale-salt-free-reactive-dyeing-of-cationized-cotton-fabric-with-different-reactive-dye-chemistry
#4
Arivithamani Nallathambi, Giri Dev Venkateshwarapuram Rengaswami
Dyeing of knitted cotton goods in the industry has been mostly with reactive dyes. Handling of salt laden coloured effluent arising out of dyeing process is one of the prime concerns of the industry. Cationization of cotton is one of the effective alternative to overcome the above problem. But for cationization to be successful at industrial scale it has to be carried out by exhaust process and should be adoptable for the various dye chemistries currently practiced in the industry. Hence, in the present work, industrial level exhaust method of cationization process was carried out with concentration of 40g/L and 80g/L...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28797867/preventing-early-postoperative-arm-swelling-and-lymphedema-manifestation-by-compression-sleeves-after-axillary-lymph-node-interventions-in-breast-cancer-patients-a-randomized-controlled-trial
#5
Katarzyna Ochalek, Tomasz Gradalski, Hugo Partsch
CONTEXT: Breast cancer related lymphedema (BCRL) remains one of the major long-term complications after surgery. Many reports showed the effectiveness of compression in BCRL treatment but randomized controlled trials evaluating compression garments for postoperative prevention are lacking. OBJECTIVES: The aim of the study was to evaluate the potential role of light arm compression sleeves for reducing the incidence of early postoperative swelling and of breast cancer related arm lymphedema...
August 7, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28795884/results-of-directly-applied-activated-carbon-cloth-in-chronic-wounds-a-preliminary-study
#6
H S Scheer, M Kaiser, U Zingg
OBJECTIVE: Activated carbon (AC) has been used in wound therapy as an active substance inside dressings. Applying AC directly on a wound is a new concept. The aim of this study was to analyse the outcomes of chronic wounds which were managed with directly applied activated carbon knitted cloth (ACC, Zorflex) in Swiss patients. METHOD: A retrospective analysis of the records of all patients with chronic wounds treated with ACC between 1 October 2013 and 31 December 2015 in an outpatient wound clinic...
August 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28794951/high-gas-uptake-and-selectivity-in-hyper-crosslinked-porous-polymers-knitted-by-various-nitrogen-containing-linkers
#7
Ziyan Jia, Jiannan Pan, Daqiang Yuan
By introducing various N-containing compounds as efficient linkers, a series of hyper-crosslinked porous polymers with high surface areas and gas-uptake values were synthesized by using the Friedel-Crafts alkylation reaction. Structural characterization indicated the presence of nitrogen atoms, and gas-sorption experiments revealed that the high gas uptake benefitted from the high surface areas and the incorporation of N-containing linkers as Lewis basic sites. Among these porous polymers, HCP-4 had the highest H2 uptake of 9...
August 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28773913/photocatalytic-antimicrobial-and-biocompatibility-features-of-cotton-knit-coated-with-fe-n-doped-titanium-dioxide-nanoparticles
#8
Miruna Silvia Stan, Ionela Cristina Nica, Anca Dinischiotu, Elena Varzaru, Ovidiu George Iordache, Iuliana Dumitrescu, Marcela Popa, Mariana Carmen Chifiriuc, Gratiela G Pircalabioru, Veronica Lazar, Eugenia Bezirtzoglou, Marcel Feder, Lucian Diamandescu
Our research was focused on the evaluation of the photocatalytic and antimicrobial properties, as well as biocompatibility of cotton fabrics coated with fresh and reused dispersions of nanoscaled TiO₂-1% Fe-N particles prepared by the hydrothermal method and post-annealed at 400 °C. The powders were characterized by X-ray diffraction (XRD), Mössbauer spectroscopy and X-ray photoelectron spectroscopy. The textiles coated with doped TiO₂ were characterized by scanning electron microscopy and energy dispersive X-ray analyses, and their photocatalytic effect by trichromatic coordinates of the materials stained with methylene blue and coffee and exposed to UV, visible and solar light...
September 21, 2016: Materials
https://www.readbyqxmd.com/read/28763637/sodium-fluoride-adversely-affects-ovarian-development-and-reproduction-in-drosophila-melanogaster
#9
Salma Khatun, Prem Rajak, Moumita Dutta, Sumedha Roy
The study demonstrates the effects of chronic sub-lethal exposure of sodium fluoride (NaF) on reproductive structure and function of female Drosophila melanogaster. As a part of treatment, flies were maintained in food supplemented with sub-lethal concentrations of NaF (10-100 μg/mL). Fecundity, ovarian morphology, presence and profusion of viable cells from ovary and fat body were taken into consideration for evaluating changes in reproductive homeostasis. Wing length (a factor demonstrating body size and reproductive fitness) was also monitored after NaF exposure...
November 2017: Chemosphere
https://www.readbyqxmd.com/read/28666884/bioinspired-coupled-helical-coils-for-soft-tissue-engineering-of-tubular-structures-improved-mechanical-behavior-of-tubular-collagen-type-i-templates
#10
H P Janke, J Bohlin, R M L M Lomme, S M Mihaila, J Hilborn, W F J Feitz, E Oosterwijk
The design of constructs for tubular tissue engineering is challenging. Most biomaterials need to be reinforced with supporting structures such as knittings, meshes or electrospun material to comply with the mechanical demands of native tissues. In this study, coupled helical coils (CHCs) were manufactured to mimic collagen fiber orientation as found in nature. Monofilaments of different commercially available biodegradable polymers were wound and subsequently fused, resulting in right-handed and left-handed polymer helices fused together in joints where the filaments cross...
September 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28661648/graphene-fiber-based-supercapacitors-favor-n-methyl-2-pyrrolidone-ethyl-acetate-as-the-spinning-solvent-coagulant-combination
#11
Nanfei He, Qin Pan, Yixin Liu, Wei Gao
One-dimensional flexible fiber supercapacitors (FSCs) have attracted great interest as promising energy-storage units that can be seamlessly incorporated into textiles via weaving, knitting, or braiding. The major challenges in this field are to develop tougher and more efficient FSCs with a relatively easy and scalable process. Here, we demonstrate a wet-spinning process to produce graphene oxide (GO) fibers from GO dispersions in N-methyl-2-pyrrolidone (NMP), with ethyl acetate as the coagulant. Upon chemical reduction of GO, the resulting NMP-based reduced GO (rGO) fibers (rGO@NMP-Fs) are twice as high in the surface area and toughness but comparable in tensile strength and conductivity as that of the water-based rGO fibers (rGO@H2O-Fs)...
July 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28660295/-prostate-gland-what-would-urologists-like-to-know-from-radiologists
#12
REVIEW
U B Liehr, D Baumunk, S Blaschke, F Fischbach, B Friebe, F König, A Lemke, P Mittelstädt, M Pech, M Porsch, J Ricke, D Schindele, S Siedentopf, J J Wendler, M Schostak
A more than 100-year period, where the prostate was only seen and treated as a whole is coming to an end right now. Finally, high resolution imaging is providing deep insights and detailed information so that new therapeutic procedures can aim for the smallest targets within the gland. The long-standing wish of patients for individual noninvasive diagnostics and treatment of prostate diseases can now be fulfilled by providing new tailored concepts; however, in order to transfer the enormous amount of new information into the specific clinical patient situation, a closely knit interdisciplinary approach is required...
August 2017: Der Radiologe
https://www.readbyqxmd.com/read/28659977/facial-mobility-after-maxilla-mandibular-advancement-in-patients-with-severe-obstructive-sleep-apnea-syndrome-a-three-dimensional-study
#13
Laura Verzé, Francesca Antonella Bianchi, Niccolò Barla, Serena Maria Curti, Giovanni Gerbino, Guglielmo Amedeo Ramieri
Introduction. The functional results of surgery in terms of facial mobility are key elements in the treatment of patients. Little is actually known about changes in facial mobility following surgical treatment with maxillomandibular advancement (MMA). Objectives. The three-dimensional (3D) methods study of basic facial movements in typical OSAS patients treated with MMA was the topic of the present research. Materials and Methods. Ten patients affected by severe obstructive sleep apnea syndrome (OSAS) were engaged for the study...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28646907/dimensions-of-social-capital-of-families-with-thalassemia-in-an-indigenous-population-in-tamil-nadu-india-a-qualitative-study
#14
Bharathi Palanisamy, Kalpana Kosalram, Vijayaprasad Gopichandran
BACKGROUND: Studies have shown that social capital is positively associated with health, and the association is context-based. Indigenous populations with poor access to health care largely depend on social capital for their health care needs. This study was conducted to explore the dimensions and types of social capital and its utilization by families with thalassemia for their health and well-being in an indigenous population in Tamil Nadu, India. METHODS: The participants in the study were parents who had children with thalassemia, belonged to an indigenous community in Tamil Nadu, were poor and marginalized, and had poor access to health care...
June 24, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28642957/superacid-promoted-synthesis-of-highly-porous-hypercrosslinked-polycarbazoles-for-efficient-co2-capture
#15
Xiang Zhu, Shunmin Ding, Carter W Abney, Katie L Browning, Robert L Sacci, Gabriel M Veith, Chengcheng Tian, Sheng Dai
A superacid-promoted "knitting" strategy has been developed for the generation of a novel family of hypercrosslinked nanoporous polycarbazoles for efficient CO2 capture. Using trifluoromethanesulfonic acid, a Brønsted superacid, we demonstrate the facile and rapid synthesis of highly porous polycarbazoles with BET surface areas as high as 1688 m(2) g(-1), and capable of adsorbing 3.5 mmol g(-1) of CO2 at 298 K and 1 bar. This impressive result bestows the material with the highest CO2 uptake capacity for all nanoporous carbazolic polymers and ranks among the best by known porous organic polymers under this condition...
July 4, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28639875/short-form-6d-assessment-in-compression-module-of-the-american-college-of-phlebology-patient-reported-outcome-venous-registry
#16
Yung-Wei Chi, Blythe Durbin-Johnson, Marlin Schul
Objective The goal of this American College of Phlebology Patient Reported Outcome Venous Registry analysis was to examine the clinical efficacy of compression stockings using short-form 6D questionnaire (SF-6D). Method SF-6D scores were modeled over time using linear mixed effects model. Changes of SF-6D score from baseline to the last encounter were examined using a paired t-test. Analysis of variance was used to compare changes from baseline in SF-6D scores between C classifications. All analyses were conducted using SAS software, version 9...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28618328/preparation-of-a-polylactic-acid-knitting-mesh-for-pelvic-floor-repair-and-in-vivo-evaluation
#17
Yao Lu, Shengnan Dong, Peihua Zhang, Xin Liu, Xungai Wang
The health warning report by the Food and Drug Administration (FDA) in 2011 has drawn attention to the need for developing a suitable bio-scaffold for repairing female pelvic from disease. This work prepared a pure polylactic acid knitting mesh (PPA) and compared its structure and properties with a commercial mesh - Surgimesh® Prolapse (SP; Aspide Medical, France). Mechanical tests showed that the PPA mesh was stronger than SP with higher breaking strength and bursting strength. The in vivo property of PPA was evaluated with an animal model...
October 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28617250/confinement-of-carbon-nanotube-enabled-multi-strand-helices-of-polyacetylenes
#18
Yunfang Li, Wei-Tao Lu, Hongjin Fu, Xiaolin Zhao, Shuqiong Xu
Molecular dynamics simulations demonstrate that several polyacetylene (PA) chains can encapsulate and self-assemble into multi-stranded helical structures in confined inner space of carbon nanotubes (SWCNT). The driving van der Waals force and curvature provided by tube wall enable polymers to bend and spiral to maximize the π-π stacking area with tube wall when filling inside SWCNT. Structural forms and knitting pattern of multiple helices are influenced by the combined effect of tube space, number of PA chains and temperature...
June 15, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28598983/a-preclinical-evaluation-of-polypropylene-polylacticacid-hybrid-meshes-for-fascial-defect-repair-using-a-rat-abdominal-hernia-model
#19
Daniela Ulrich, Isabelle Le Teuff, Stephanie Huberlant, Patrick Carteron, Vincent Letouzey, Renaud de Tayrac
OBJECTIVES: Synthetic mesh surgery for both abdominal and urogenital hernia repair is often unsatisfactory in the long-term due to postoperative complications. We hypothesized that a semi-degradable mesh hybrid may provide more appropriate biocompatibility with comparable mechanical properties. The aim was to compare its in vivo biocompatibility with a commercial polypropylene (PP) mesh. METHODS: 72 rats were randomly allocated to either our new composite mesh (monofilament PP mesh knitted with polylactic-acid-fibers (PLA)) or to a commercially available PP mesh that was used as a control...
2017: PloS One
https://www.readbyqxmd.com/read/28567031/impact-of-nutrient-restriction-on-the-structure-of-listeria-monocytogenes-biofilm-grown-in-a-microfluidic-system
#20
Tamazight Cherifi, Mario Jacques, Sylvain Quessy, Philippe Fravalo
Biofilm formation by the pathogen Listeria monocytogenes is a major concern in food industries. The aim of this work was to elucidate the effect of nutrient limitation on both biofilm architecture and on the viability of the bacteria in microfluidic growth conditions. Biofilm formation by two L. monocytogenes strains was performed in a rich medium (BHI) and in a 10-fold diluted BHI (BHI/10) at 30°C for 24 h by using both static conditions and the microfluidic system Bioflux. In dynamic conditions, biofilms grown in rich and poor medium showed significant differences as well in structure and in the resulting biovolume...
2017: Frontiers in Microbiology
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