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https://www.readbyqxmd.com/read/28532102/islet-encapsulated-implantable-composite-hollow-fiber-membrane-based-device-a-bioartificial-pancreas
#1
Rohit S Teotia, Sachin Kadam, Atul Kumar Singh, Surendra Kumar Verma, Ashutosh Bahulekar, Sujata Kanetkar, Jayesh Bellare
Islets from xeno-sources and islet like clusters derived from autologus stem cells have emerged as alternatives to cadaveric pancreas used for treatment of type 1 diabetes. However, the immuno-isolation of these islets from the host immune system suffers from the issue of biocompatibility and hypoxia. To overcome the issues of immunobarrier biocompatibility, we developed a Polysulfone (Psf)/TPGS composite hollow fiber membrane (HFM) using a hollow fiber spinning pilot plant specially developed for this purpose...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531967/climate-response-of-oak-quercus-spp-an-evidence-of-a-bioclimatic-boundary-induced-by-the-carpathians
#2
Constantin Nechita, Ionel Popa, Ólafur Eggertsson
Tree-ring information and climate response data were applied to investigate the potential of the Carpathian Mountains to influence tree-growth patterns. Recent studies reveal the importance of constructing a dense spatial network of oak tree-ring chronologies in this area, which may be the key to linking the North Central European and East Mediterranean tree records. We establish sixteen oak (Quercus robur L.) and sessile oak (Quercus petraea (Matt.) Liebl.) site chronologies along a longitudinal gradient (from 22...
May 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531836/trauma-exposure-incident-psychiatric-disorders-and-disorder-transitions-in-a-longitudinal-population-representative-sample
#3
Kate Walsh, Katie A McLaughlin, Ava Hamilton, Katherine M Keyes
Heterotypic continuity, whereby individuals transition from one disorder to another, is common; however, longitudinal studies examining transdiagnostic predictors of heterotypic continuity are lacking. The current study examined whether trauma exposure during childhood (maltreatment) and adulthood (interpersonal and non-interpersonal trauma) is associated with heterotypic continuity in a national sample. Men and women (N = 34,653) who participated in Waves 1 (2001-2002) and 2 (2004-2005) of the National Survey of Alcohol and Related Conditions (NESARC) completed face-to-face interviews about trauma exposure and psychopathology...
May 5, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28531651/synthesis-and-characterization-of-au-nps-supported-on-carbon-nanotubes-application-for-the-ultrasound-assisted-removal-of-radioactive-uo2-2-ions-following-complexation-with-arsenazo-iii-spectrophotometric-detection-optimization-isotherm-and-kinetic-study
#4
Mohammad Hassan Omidi, Farshid Nasiri Azad, Mehrorang Ghaedi, Arash Asfaram, Mohammad Hossein Ahmadi Azqhandi, Lobat Tayebi
The present study devoted to description of efficient removal of radioactive UO2(2+) ions (U(IV)) via complexation with Arsenazo III (ARS III) accelerated by ultrasound-assisted adsorption onto the Au-NPs supported on carbon nanotubes (Au-NPs-CNTs), which were characterized by conventional techniques such as FESEM, EDS and XRD. Central composite design (CCD) employed to model contribution of parameters viz. pH (2.5-8.5), adsorbent mass (5-25mg), UO2(2+) concentration (5-25mgL(-1)) and sonication time (1-5min) onto response...
May 13, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28531419/current-practices-and-experience-of-transition-of-young-people-on-long-term-home-parenteral-nutrition-pn-to-adult-services-a-perspective-from-specialist-centres
#5
E Kyrana, S V Beath, S Gabe, M Small, S Hill
BACKGROUND: There has been an estimated fivefold increase in the number of children receiving parenteral nutrition (PN) at home in the past 10 years with some children approaching the age when they should be referred to adult services whilst still on treatment. Models of care for moving young people onto adult providers of PN at home are not yet well developed, and transition is a potentially dangerous time for young people with complex health needs. METHODS: A questionnaire to ascertain current experience and practices of transition in the context of home PN services was dispatched to 170 consultant gastroenterologists who were members of the British Association of Parenteral and Enteral Nutrition (BAPEN) and also to all 40 members of the Nutrition and IF working group of the British Society of Paediatric Gastroenterology and Nutrition (BSPGHAN)...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531395/nationwide-survey-of-nutritional-management-in-an-asian-upper-middle-income-developing-country-government-hospitals-combination-of-quantitative-survey-and-focus-group-discussion
#6
K Chittawatanarat, K Tosanguan, U Chaikledkaew, S Tejavanija, Y Teerawattananon
BACKGROUND & AIMS: The objective of this study was to identify the differences in pattern, process, and management of nutrition care in government hospitals in Thailand (an Asian upper-middle income developing country). METHODS: This is a combination of a quantitative nationwide questionnaire survey and focus group discussions. A total of 2300 questionnaires were sent to government hospitals across Thailand. The responders were divided by routine-nutrition screening/assessment unit vs...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531392/a-randomised-controlled-feasibility-and-proof-of-concept-trial-in-delayed%C3%A2-gastric-emptying-when-metoclopramide-fails-we-should-revisit%C3%A2-nasointestinal-feeding-versus-dual-prokinetic-treatment-achieving-goal-nutrition-in-critical-illness-and-delayed-gastric
#7
Stephen J Taylor, Kaylee Allan, Helen McWilliam, Alex Manara, Jules Brown, Rosemary Greenwood, Deirdre Toher
BACKGROUND & AIMS: Delayed gastric emptying (DGE) commonly limits the use of enteral nutrition (EN) and may increase ventilator-associated pneumonia. Nasointestinal feeding has not been tested against dual prokinetic treatment (Metoclopramide and Erythromycin) in DGE refractory to metoclopramide. This trial tests the feasibility of recruiting this 'treatment-failed' population and the proof of concept that nasointestinal (NI) feeding can increase the amount of feed tolerated (% goal) when compared to nasogastric (NG) feeding plus metoclopramide and erythromycin treatment...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531343/job-satisfaction-of-teachers-of-students-who-are-deaf-or-hard-of-hearing
#8
John L Luckner, Brittany Dorn
The pressure that educators are experiencing to educate more students, with more challenges, to higher levels of learning than any time in the past is significantly changing their working conditions. The purpose of this study was to examine the perceptions of a national sample of teachers of students who are deaf or hard of hearing to ascertain their overall job satisfaction as well as to identify the specific factors that positively and negatively affect their ability to do their jobs well. In addition, responses of different subsets of teachers (e...
May 20, 2017: Journal of Deaf Studies and Deaf Education
https://www.readbyqxmd.com/read/28531336/loop-gain-predicts-the-response-to-upper-airway-surgery-in-patients-with-obstructive-sleep-apnoea-ventilatory-control-abnormalities-predict-surgical-responsiveness
#9
Simon A Joosten, Paul Leong, Shane A Landry, Scott A Sands, Philip I Terrill, Dwayne Mann, Anthony Turton, Jhanavi Rangaswamy, Christopher Andara, Glen Burgess, Darren Mansfield, Garun S Hamilton, Bradley A Edwards
Study Objectives: Upper airway surgery is often recommended to treat OSA patients who cannot tolerate continuous positive airways pressure (CPAP). However, the response to surgery is variable, potentially because it does not improve the non-anatomical factors (i.e. loop gain and arousal threshold) causing OSA. Measuring these traits clinically might predict responses to surgery. Our primary objective was to test the value of loop gain and arousal threshold to predict surgical success defined as 50% reduction in apnea-hypopnea index (AHI) and AHI <10 events/hr post-surgery...
May 22, 2017: Sleep
https://www.readbyqxmd.com/read/28531324/a-vignette-study-of-older-adults-preferences-for-intergenerational-transfers-in-the-context-of-competition-between-grandparents-and-grandchildren-in-rural-china
#10
Zhen Cong, Merril Silverstein
Objectives: The objective of this analysis was to examine older adults' preferences for economic support in the context of competition between grandparents and grandchildren for the middle generation's financial resources in rural China. Specifically, it examined how relative need, lineage, and gender of grandchildren depicted in a vignette were evaluated and how personal characteristics of the evaluators influenced beliefs for which generation should receive more support. Method: The sample consisted of 989 older adults participating in three waves of a longitudinal study in Anhui Province, China...
May 20, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28531312/taste-elicited-activity-in-facial-muscle-regions-in-5-8-week-old-infants
#11
Jessica E Armstrong, David G Laing, Anthony L Jinks
The state of development of the sense of taste in humans during the first few months of life is only partially understood. Since taste plays a critical role in the feeding and nutrition of infants a better understanding of taste development during early life is required. Currently, information about the sense of taste in pre-verbal infants is obtained by analysis of videotaped facial expressions using the Baby FACS coding system. A potentially more objective faster procedure for assessing facial expressions not investigated in infants is electromyography (EMG)...
June 1, 2017: Chemical Senses
https://www.readbyqxmd.com/read/28531308/challenges-of-research-recruitment-in-a-university-setting-in-england
#12
Claudia Vadeboncoeur, Charlie Foster, Nick Townsend
The recruitment is an integral part of most research projects in medical sciences involving human participants. In health promotion research, there is increasing work on the impact of environments. Settings represent environments such as schools where social, physical and psychological development unfolds. In this study, we investigated weight gain in students within a university setting. Barriers to access and recruitment of university students within a specific setting, in the context of health research are discussed...
May 20, 2017: Health Promotion International
https://www.readbyqxmd.com/read/28531262/biogeography-of-cryoconite-bacterial-communities-on-glaciers-of-the-tibetan-plateau
#13
Yongqin Liu, Trista J Vick-Majors, John C Priscu, Tandong Yao, Shichang Kang, Keshao Liu, Ziyuang Cong, Jingbo Xiong, Yang Li
Cryoconite holes, water-filled pockets containing biological and mineralogical deposits that form on glacier surfaces, play important roles in glacier mass balance, glacial geochemistry, and carbon cycling. The presence of cryoconite material decreases surface albedo and accelerates glacier mass loss, a problem of particular importance in the rapidly melting Tibetan Plateau. No studies have addressed the microbial community composition of cryoconite holes and their associated ecosystem processes on Tibetan glaciers...
May 20, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28531240/public-knowledge-and-understanding-of-dementia-evidence-from-a-national-survey-in-ireland
#14
Ronan W Glynn, Emer Shelley, Brian A Lawlor
Background: there is growing consensus around the importance of population level approaches which seek to improve public knowledge and awareness of dementia. Aim: to assess knowledge of the relationship between dementia and ageing, and of the risk and protective factors associated with it, among the general public in Ireland. Design: cross-sectional survey. Participants selected using quota sampling based on Census data. Methods: the final sample of 1,217 respondents provided estimates of dementia knowledge in the Irish population...
May 22, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28531190/real-time-cell-toxicity-profiling-of-tox21-10k-compounds-reveals-cytotoxicity-dependent-toxicity-pathway-linkage
#15
Jui-Hua Hsieh, Ruili Huang, Ja-An Lin, Alexander Sedykh, Jinghua Zhao, Raymond R Tice, Richard S Paules, Menghang Xia, Scott S Auerbach
Cytotoxicity is a commonly used in vitro endpoint for evaluating chemical toxicity. In support of the U.S. Tox21 screening program, the cytotoxicity of ~10K chemicals was interrogated at 0, 8, 16, 24, 32, & 40 hours of exposure in a concentration dependent fashion in two cell lines (HEK293, HepG2) using two multiplexed, real-time assay technologies. One technology measures the metabolic activity of cells (i.e., cell viability, glo) while the other evaluates cell membrane integrity (i.e., cell death, flor). Using glo technology, more actives and greater temporal variations were seen in HEK293 cells, while results for the flor technology were more similar across the two cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28530860/responding-to-ever-evolving-threats
#16
Axel Wirth
No abstract text is available yet for this article.
May 2017: Biomedical Instrumentation & Technology
https://www.readbyqxmd.com/read/28530795/modelling-living-cells-response-to-surface-tension-and-chemical-patterns
#17
Marco Macis, Francesca Lugli, Francesco Zerbetto
Mechanobiology is an important epigenetic factor. It influences cell functioning and bears on gene induction, protein synthesis, cell growth and differentiation. In the presence of patterned chemical cues, living cells can take shapes that are far from that of a drop of fluid. These shapes are characterized by inward curvatures that are pinned at the points of location of the cues. The mechano-chemical interactions that orchestrate cell behavior is simulated and controlled by modeling the cells as made by parcels of fluid...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28530708/engineering-rgb-color-vision-into-escherichia-coli
#18
Jesus Fernandez-Rodriguez, Felix Moser, Miryoung Song, Christopher A Voigt
Optogenetic tools use colored light to rapidly control gene expression in space and time. We designed a genetically encoded system that gives Escherichia coli the ability to distinguish between red, green, and blue (RGB) light and respond by changing gene expression. We use this system to produce 'color photographs' on bacterial culture plates by controlling pigment production and to redirect metabolic flux by expressing CRISPRi guide RNAs.
May 22, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28530643/danger-signals-in-regulating-the-immune-response-to-solid-organ-transplantation
#19
Jamie L Todd, Scott M Palmer
Endogenous danger signals, or damage-associated molecular patterns (DAMPs), are generated in response to cell stress and activate innate immunity to provide a pivotal mechanism by which an organism can respond to damaged self. Accumulating experimental and clinical data have established the importance of DAMPs, which signal through innate pattern recognition receptors (PRRs) or DAMP-specific receptors, in regulating the alloresponse to solid organ transplantation (SOT). Moreover, DAMPs may incite distinct downstream cellular responses that could specifically contribute to the development of allograft fibrosis and chronic graft dysfunction...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28530629/-laparoendoscopic-single-site-less-ureteral-reimplantation
#20
Pedro M Cabrera Castillo, Felipe Cáceres Jiménez
OBJECTIVE: To present in detail our surgical technique and to show our initial experience with ureteral reimplantation using the transumbilical LESS approach to treat patients with ureteral stenosis secondary to various diseases and surgical complications. METHODS: We performed 7 ureteral reimplantations from February 2012, using the multichannel Richard- Wolf (KeyPort) platform placed transumbilical by a small 2-2,5 cm transversal incision. We always use a 3.5 mm minilaparoscopy accessory trocar in the right iliac fossa, that is crucial to perform the laparoscopic suturing safely for the patient and in an optimal time...
May 2017: Archivos Españoles de Urología
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