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https://www.readbyqxmd.com/read/28317316/severely-impaired-gastric-accommodation-is-a-hallmark-of-post-nissen-functional-dyspepsia-symptoms
#1
A Pauwels, V Boecxstaens, C Broers, J F Tack
BACKGROUND: Laparoscopic Nissen fundoplication is a commonly performed antireflux surgery, after which reflux symptoms are well controlled, however, complications such as inability to belch or dyspeptic symptoms (mimicking those of functional dyspepsia [FD]) might occur. The aim of the study was to prospectively evaluate symptom pattern and underlying pathophysiological mechanisms in patients with post-Nissen dyspepsia. METHODS: Twenty-four patients (12 f, mean age 44...
March 20, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28303589/secondary-phenotype-analysis-in-ascertained-family-designs-application-to-the-leiden-longevity-study
#2
Renaud Tissier, Roula Tsonaka, Simon P Mooijaart, Eline Slagboom, Jeanine J Houwing-Duistermaat
The case-control design is often used to test associations between the case-control status and genetic variants. In addition to this primary phenotype, a number of additional traits, known as secondary phenotypes, are routinely recorded, and typically, associations between genetic factors and these secondary traits are studied too. Analysing secondary phenotypes in case-control studies may lead to biased genetic effect estimates, especially when the marker tested is associated with the primary phenotype and when the primary and secondary phenotypes tested are correlated...
March 16, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28301010/effect-of-sonic-vibrations-on-bond-strength-of-fiberglass-posts-bonded-to-root-dentin
#3
Amanda Mahammad Mushashe, Rodrigo Otavio Jatahy Ferreira do Amaral, Carlos Eduardo Edwards Rezende, Flares Baratto Filho, Leonardo Fernandes da Cunha, Carla Castiglia Gonzaga
Sonic vibrations may improve the bond strength and durability of fiberglass posts by improving adhesive penetration into dentin as well as the cement flow. The objective of this study was to evaluate the effect of sonic vibrations on the bond strength between fiberglass posts and root dentin using the pull-out test. Bovine roots were endodontically treated and divided randomly into four groups (n=12): Group C - conventional cementation (control); Group SA - sonic vibration (Smart Sonic Device, FGM) of the adhesive system and conventional post accommodation; SP group - conventional adhesive application and sonic vibration of the post during accommodation; and SASP - sonic vibration of the system adhesive and the post during accommodation...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28300790/non-destructive-detection-of-wire-rope-discontinuities-from-residual-magnetic-field-images-using-the-hilbert-huang-transform-and-compressed-sensing
#4
Juwei Zhang, Xiaojiang Tan, Pengbo Zheng
Electromagnetic methods are commonly employed to detect wire rope discontinuities. However, determining the residual strength of wire rope based on the quantitative recognition of discontinuities remains problematic. We have designed a prototype device based on the residual magnetic field (RMF) of ferromagnetic materials, which overcomes the disadvantages associated with in-service inspections, such as large volume, inconvenient operation, low precision, and poor portability by providing a relatively small and lightweight device with improved detection precision...
March 16, 2017: Sensors
https://www.readbyqxmd.com/read/28300230/unique-interconnected-graphene-sno2-nanoparticle-spherical-multilayers-for-lithium-ion-battery-applications
#5
Qingguo Shao, Jie Tang, Yige Sun, Jing Li, Kun Zhang, Jinshi Yuan, Da-Ming Zhu, Lu-Chang Qin
We have designed and synthesized a unique structured graphene/SnO2 composite, where SnO2 nanoparticles are inserted in between interconnected graphene sheets which form hollow spherical multilayers. The hollow spherical multilayered structure provides much flexibility to accommodate the configuration and volume changes of SnO2 in the material. When it is used as an anode material for lithium-ion batteries, such a novel nanostructure can not only provide a stable conductive matrix and suppress the mechanical stress, but also eliminate the need of any binders for constructing electrodes...
March 16, 2017: Nanoscale
https://www.readbyqxmd.com/read/28296722/design-methodology-and-baseline-data-of-the-personalized-addition-lenses-clinical-trial-pact
#6
Xinping Yu, Binjun Zhang, Jinhua Bao, Junxiao Zhang, Ge Wu, Jinling Xu, Jingwei Zheng, Björn Drobe, Hao Chen
BACKGROUND: The aim of this study was to describe the design, methods, and baseline characteristics of children enrolled in the Personalized Addition lenses Clinical Trial (PACT). PACT aims to test the myopia control efficacy of progressive addition lenses (PALs) with personalized addition values compared with standard (+2.00 D) addition PALs and single vision lenses (SVLs). METHODS: PACT is a randomized, controlled, double-masked clinical trial. Two hundred eleven myopic Chinese children (7-12 years) were enrolled and randomized into 1 of the 3 following groups: personalized addition PALs; +2...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28293553/pcr-primer-design-for-16s-rrnas-for-experimental-horizontal-gene-transfer-test-in-escherichia-coli
#7
Kentaro Miyazaki, Mitsuharu Sato, Miyuki Tsukuda
We recently demonstrated that the Escherichia coli ribosome is robust enough to accommodate foreign 16S rRNAs from diverse gamma- and betaproteobacteria bacteria (Kitahara et al., 2012). Therein, we used the common universal primers Bac8f and UN1541r to obtain a nearly full-length gene. However, we noticed that these primers overlap variable sites at 19[A/C] and 1527[U/C] in Bac8f and UN1541r, respectively, and thus, the amplicon could contain mutations. This is problematic, particularly for the former site, because the 19th nucleotide pairs with the 916th nucleotide, which is a part of the "central pseudoknot" and is critical for function...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28293150/the-evaluation-of-simulation-market-in-nursing-education-and-the-determination-of-learning-style-of-students
#8
Yasemin Çelik, Yeşim Ceylantekin, İbrahim Kiliç
OBJECTIVE: The aim of this study is to detect the overall evaluation of nursing students toward simulation markets throughout the practice education and to reveal their learning styles in relation to certain individual features. MATERIALS AND METHODS: The data were collected via questionnaires including students' evaluation toward simulation markets and "Kolb learning styles inventory." Participants included 103 male and female nursing students in Turkey. For the analysis, percentage, means, standard deviation, t-test, and ANOVA were utilized...
January 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28287078/the-design-of-and-chronic-tissue-response-to-a-composite-nerve-electrode-with-patterned-stiffness
#9
Max Freeberg, Matthew Stone, Ronald Triolo, Dustin Tyler
As neural interfaces demonstrate success in chronic applications, a novel class of reshaping electrodes with patterned regions of stiffness will enable application to a widening range of anatomical locations. Patterning stiff regions and flexible regions of the electrode enables nerve reshaping while accommodating anatomical constraints of various implant locations ranging from peripheral nerves to spinal and autonomic plexi. Introduced is a new composite electrode enabling patterning of regions of various electrode mechanical properties...
March 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28283805/an-evidence-based-stress-management-intervention-for-allogeneic-hematopoietic-stem-cell-transplant-caregivers-development-feasibility-and-acceptability
#10
Teresa L Simoneau, Kristin Kilbourn, Janet Spradley, Mark L Laudenslager
PURPOSE: Caregivers of cancer patients face challenges impacting their physical, psychological and social well-being that need attention in the form of well-designed and tested interventions. We created an eight-session individual stress management intervention for caregivers of allogeneic hematopoietic stem cell transplant (Allo-HSCT) recipients. This intervention, tested by randomized control trial, proved effective in decreasing distress. Herein, we describe the intervention including theoretical framework, development, and elements of fidelity...
March 10, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28278172/the-influence-of-a-hydraulic-prosthetic-ankle-on-residual-limb-loading-during-sloped-walking
#11
Sara R Koehler-McNicholas, Eric A Nickel, Joseph Medvec, Kyle Barrons, Spencer Mion, Andrew H Hansen
In recent years, numerous prosthetic ankle-foot devices have been developed to address the demands of sloped walking for individuals with lower-limb amputation. The goal of this study was to compare the performance of a passive, hydraulic ankle-foot prosthesis to two related, non-hydraulic ankles based on their ability to minimize the socket reaction moments of individuals with transtibial amputation during a range of sloped walking tasks. After a two-week accommodation period, kinematic data were collected on seven subjects with a transtibial amputation walking on an instrumented treadmill set at various slopes...
2017: PloS One
https://www.readbyqxmd.com/read/28275249/state-and-local-policies-related-to-sexual-orientation-in-the-united-states
#12
Ryan Cramer, Sarah Hexem, Archana LaPollo, Kendra M Cuffe, Harrell W Chesson, Jami S Leichliter
Poorer health suffered by lesbian, gay, and bisexual (LGB) populations may be associated with public policies. We collected the laws that in 2013 prohibited discrimination based on sexual orientation from 50 United States (US) states, the District of Columbia (Washington, DC or DC), and the 30 most populous US metropolitan areas. To facilitate future research, we coded certain aspects of these laws to create a dataset. We generated descriptive statistics by jurisdiction type and tested for regional differences in state law using Chi-square tests...
February 2017: Journal of Public Health Policy
https://www.readbyqxmd.com/read/28275086/the-autism-epidemic-ethical-legal-and-social-issues-in-a-developmental-spectrum-disorder
#13
William D Graf, Geoffrey Miller, Leon G Epstein, Isabelle Rapin
Classic autism has gradually evolved into the concept of a larger "spectrum disorder." The rising prevalence of autism and autism spectrum disorder (autism/ASD) diagnoses can be largely attributed to broader diagnostic criteria, adoption of dimensional assessment strategies, increased awareness, linking of services to diagnosis, and the inclusion of milder neurodevelopmental differences bordering on normality. The spectrum disorder diagnosis raises numerous bioethical issues for individuals and society. Three groups of caregivers have important ethical, legal, and social obligations to individuals with autism/ASD: (1) families and advocates of individuals with autism/ASD; (2) health care and other professionals; and (3) governments...
March 8, 2017: Neurology
https://www.readbyqxmd.com/read/28269360/development-of-high-impedance-measurement-system-for-water-leakage-detection-in-implantable-neuroprosthetic-devices
#14
Aziz Yousif, Shawn K Kelly
There has been a push for a greater number of channels in implantable neuroprosthetic devices; but, that number has largely been limited by current hermetic packaging technology. Microfabricated packaging is becoming reality, but a standard testing system is needed to prepare these devices for clinical trials. Impedance measurements of electrodes built into the packaging layers may give an early warning of device failure and predict device lifetime. Because the impedance magnitudes of such devices can be on the order of gigaohms, a versatile system was designed to accommodate ultra-high impedances and allow future integrated circuit implementation in current neural prosthetic technologies...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269081/an-adapted-double-threshold-protocol-for-spastic-muscles
#15
Pedro M Vieira, Joao F Ferreira, Pedro R Gomes, Carlos S Lima
The onset of muscle contraction has been an important element in the understanding of human motor control system as well as in the development of medical devices. This task is problematic in the study of spasticity using surface Electromyography (sEMG). In fact, spasticity is characterized by involuntary muscle contractions that can be seen as both, a non-stationary background if they are weak or a severe non-stationary EMG signal if they are strong. In other hand, these sEMG signals present a very low signal to noise ratio, beyond the added noise that contaminates this signal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264658/motives-and-barriers-to-safer-sex-and-regular-sti-testing-among-msm-soon-after-hiv-diagnosis
#16
Titia Heijman, Freke Zuure, Ineke Stolte, Udi Davidovich
BACKGROUND: Understanding why some recently with HIV diagnosed men who have sex with men (MSM) choose for safer sex and regular STI testing, whereas others do not, is important for the development of interventions that aim to improve the sexual health of those newly infected. METHODS: To gain insight into motives and barriers to condom use and regular STI testing among MSM soon after HIV diagnosis, 30 HIV-positive MSM participated in semi-structured qualitative interviews on sexual health behaviours in the first year after HIV diagnosis...
March 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28260965/enhancement-of-temozolomide-stability-by-loading-in-chitosan-carboxylated-polylactide-based-nanoparticles
#17
Antonio Di Martino, Pavel Kucharczyk, Zdenka Capakova, Petr Humpolicek, Vladimir Sedlarik
In the presented work, amphiphilic nanoparticles based on chitosan and carboxy-enriched polylactic acid have been prepared to improve the stability of the pro-drug temozolomide in physiological media by encapsulation. The carrier, with a diameter in the range of 150-180 nm, was able to accommodate up to 800 μg of temozolomide per mg of polymer. The obtained formulation showed good stability in physiological condition and preparation media up to 1 month. Temozolomide loaded inside the carrier exhibited greater stability than the free drug, in particular in simulated physiological solution at pH 7...
2017: Journal of Nanoparticle Research: An Interdisciplinary Forum for Nanoscale Science and Technology
https://www.readbyqxmd.com/read/28256740/lethal-and-behavioural-impacts-of-diesel-and-fuel-oil-on-the-antarctic-amphipod-paramoera-walkeri
#18
Kathryn E Brown, Catherine K King, Peter L Harrison
Toxicity testing with Antarctic species is required for risk assessment of fuel spills in Antarctic coastal waters. The lethal and sub-lethal (movement behaviour) sensitivity of adults and juveniles of the Antarctic amphipod Paramoera walkeri to the water accommodated fractions (WAF) of three fuels were estimated in extended duration tests at -1°C to 21 d. Response of P. walkeri for lethal hydrocarbon concentrations was slow, with LC50s first able to be estimated at 7 d for adults exposed to Special Antarctic Blend diesel (SAB), which had the highest hydrocarbon concentrations of the three fuel WAFs...
March 3, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28247506/the-effect-of-hypoxia-on-free-and-encapsulated-adult-porcine-islets-an-in-vitro-study
#19
Sudhakar Muthyala, Susan Safley, Kereen Gordan, Graham Barber, Collin Weber, Athanassios Sambanis
BACKGROUND: Adult porcine islets (APIs) constitute a promising alternative to human islets in treating type 1 diabetes. The intrahepatic site has been used in preclinical primate studies of API xenografts; however, an estimated two-thirds of donor islets are destroyed after intraportal infusion due to a number of factors, including the instant blood-mediated inflammatory reaction (IBMIR), immunosuppressant toxicity, and poor reestablishment of extracellular matrix connections. Intraperitoneal (ip) transplantation of non-vascularized encapsulated islets offers several advantages over intrahepatic transplantation of free islets, including avoidance of IBMIR, immunoprotection, accommodation of a larger graft volume, and reduced risk of hemorrhage...
January 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28241560/measurement-of-static-convergence-and-accommodation-responses-to-images-of-integral-photography-and-binocular-stereoscopy
#20
Hitoshi Hiura, Kazuteru Komine, Jun Arai, Tomoyuki Mishina
Static convergence and accommodation responses were measured by comparing integral photography images, binocular stereoscopic images, and real objects in a measurement range from 450 to 900 mm. The experimental results were evaluated with a multiple comparison test. It was found that six of the ten observers did not have an accommodation-convergence conflict in viewing integral photography in the range. Moreover, the required resolution was found to be 0.7 or more and less than 1.4 cycles per degree for inducing accommodation...
February 20, 2017: Optics Express
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