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https://www.readbyqxmd.com/read/28635681/antimicrobial-activity-of-nitric-oxide-releasing-ti-6al-4v-metal-oxide
#1
Nina A Reger, Wilson S Meng, Ellen S Gawalt
Titanium and titanium alloy materials are commonly used in joint replacements, due to the high strength of the materials. Pathogenic microorganisms can easily adhere to the surface of the metal implant, leading to an increased potential for implant failure. The surface of a titanium-aluminum-vanadium (Ti-6Al-4V) metal oxide implant material was functionalized to deliver an small antibacterial molecule, nitric oxide. S-nitroso-penicillamine, a S-nitrosothiol nitric oxide donor, was covalently immobilized on the metal oxide surface using self-assembled monolayers...
June 21, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28635503/practical-guidelines-to-minimise-language-and-cognitive-confounds-in-the-diagnosis-of-capd-a-brief-tutorial
#2
Gail D Chermak, Doris-Eva Bamiou, Vasiliki Vivian Iliadou, Frank E Musiek
OBJECTIVE: To provide audiologists with strategies to minimise confounding cognitive and language processing variables and accurately diagnose central auditory processing disorder (CAPD). DESIGN: Tutorial. STUDY SAMPLE: None. RESULTS: Strategies are reviewed to minimise confounding cognitive and language processing variables and accurately diagnose CAPD. CONCLUSIONS: Differential diagnosis is exceedingly important and can be quite challenging...
February 28, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28635367/in-vivo-and-in-vitro-depolymerizations-of-intracellular-medium-chain-length-poly-3-hydroxyalkanoates-produced-by-pseudomonas-putida-bet001
#3
Siti Nor Syairah Anis, Mohamad Suffian Mohamad Annuar, Khanom Simarani
In vivo and in vitro depolymerizations of intracellular medium-chain-length poly-3-hydroxyalkanoates (mcl-PHA) in Pseudomonas putida Bet001 grown on lauric acid was studied. Both processes were studied under optimum conditions for mcl-PHA depolymerization viz. 0.2 M Tris-HCl buffer, pH 9, ionic strength (I) = 0.2 M at 30 °C. For in vitro depolymerization studies, cell-free system was obtained from lysing bacterial cells suspension by ultrasonication at optimum conditions (frequency 37 kHz, 30% of power output, <25 (°)C for 120 minutes)...
June 21, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28634623/knot-integrity-using-different-suture-types-and-different-knot-tying-techniques-for-reconstructive-pelvic-floor-procedures
#4
Omar F Dueñas-Garcia, Gina M Sullivan, Katherine Leung, Kristen L Billiar, Michael K Flynn
INTRODUCTION AND HYPOTHESIS: Surgeons use a variety of sutures and knot-tying methods during pelvic reconstructive procedures. We hypothesized that knot-strength integrity will be similar with regards to type of knot, type of suture, and the knot-tying process. METHODS: Using six different suture materials, flat square knots and slip knots were tied robotically and by hand by two surgeons. Knot integrity was evaluated using an Instron 5544 machine. We measured force and elongation at suture failure or knot slippage (whichever came first) as well as force at 3-mm displacement...
June 20, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28634569/epidemiology-and-management-of-atrial-fibrillation-and-stroke-review-of-data-from-four-european-countries
#5
REVIEW
Andreea D Ceornodolea, Roland Bal, Johan L Severens
In Europe, 1-3% of the population suffers from atrial fibrillation (AF) and has increased stroke risk. By 2060 a doubling in number of cases and great burden in managing this medical condition are expected. This paper offers an overview of data on epidemiology and management of AF and stroke in four European countries as well as the interconnection between these dimensions. A search index was developed to access multiple scientific and "grey" literatures. Information was prioritised based on strength of evidence and date...
2017: Stroke Research and Treatment
https://www.readbyqxmd.com/read/28634488/antiherding-in-financial-decision-increases-valuation-of-return-on-investment-an-event-related-potential-study
#6
Cuicui Wang, Jia Jin, João Paulo Vieito, Qingguo Ma
Using event-related potentials, this study investigated how financial herding or antiherding affected the valuation of subsequent outcomes. For each trial, subjects decided whether to buy the stock according to its net money flow information which could be used to reflect the strength of buying power or selling power of the stock. The return on investment (ROI) as feedback included the increase or decrease percentage after subjects' responses. Results showed that, compared with herding, antiherding induced larger discrepancies of FRN and P300 amplitude between positive ROI and negative ROI, indicating that individuals under antiherding condition had stronger motivation and paid more attention in the evaluation process of ROI...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28634295/population-genomic-inference-of-the-strength-and-timing-of-selection-against-gene-flow
#7
Simon Aeschbacher, Jessica P Selby, John H Willis, Graham Coop
The interplay of divergent selection and gene flow is key to understanding how populations adapt to local environments and how new species form. Here, we use DNA polymorphism data and genome-wide variation in recombination rate to jointly infer the strength and timing of selection, as well as the baseline level of gene flow under various demographic scenarios. We model how divergent selection leads to a genome-wide negative correlation between recombination rate and genetic differentiation among populations...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28633615/experts-opinion-on-manual-wheelchair-adjustments-for-adults-with-diabetes
#8
Sophie-Anne Scherrer, Joelle Chu Yu Chee, Nhi Vu, Patrice Lu, Michelle Ishack, Philippe S Archambault
Diabetes is a global health concern that can lead to mobility limitations necessitating a wheelchair. However, there are currently no guidelines for wheelchair adjustments tailored to the diabetic population. PURPOSE: To describe relevant manual wheelchair adjustments for adults with diabetes, and to explore how these adjustments apply to populations living in less-resourced countries. METHODS: Semi-structured interviews were conducted with 13 wheelchair experts from five different countries working with adult with diabetes...
March 2, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28632418/therapeutic-monitoring-of-unfractionated-heparin-trials-and-tribulations
#9
Israfil Baluwala, Emmanuel Favaloro, Leonardo Pasalic
Heparin is one of the oldest biological medicines with an established role in prevention and treatment of arterial and venous thromboembolism. Published therapeutic ranges for unfractionated heparin (UFH) mostly precede the large increase in the number of activated partial thromboplastin time (APTT) reagent/instrument combinations that now show wide variability. Areas covered: This paper explores the use of UFH, the development of heparin therapeutic ranges (HTRs), and the strengths and limitations of the methods used to monitor heparin's anticoagulant effect...
June 20, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28632066/differences-in-trunk-and-thigh-muscle-strength-endurance-and-thickness-between-elite-sailors-and-non-sailors
#10
Bernd Friesenbichler, Julia F Item-Glatthorn, Fabian Neunstöcklin, Nicola C Casartelli, Gaël Guilhem, Nicola A Maffiuletti
Dinghy sailors lean their upper body over the windward side of the boat ('hiking') to keep the boat's balance and maximise its speed. Sustaining the hiking position is essential for competitive performance and this study examined sport-specific differences of muscles relevant for hiking in elite sailors. Knee extensor muscle strength as well as trunk muscle strength, muscle endurance and muscle thickness were assessed in elite dinghy sailors (n = 15) and compared to matched, non-sailing controls (n = 15)...
March 1, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28630602/comparing-the-performance-of-improved-classify-analyze-approaches-for-distal-outcomes-in-latent-profile-analysis
#11
John J Dziak, Bethany C Bray, Jieting Zhang, Minqiang Zhang, Stephanie T Lanza
Several approaches are available for estimating the relationship of latent class membership to distal outcomes in latent profile analysis (LPA). A three-step approach is commonly used, but has problems with estimation bias and confidence interval coverage. Proposed improvements include the correction method of Bolck, Croon, and Hagenaars (BCH; 2004), Vermunt's (2010) maximum likelihood (ML) approach, and the inclusive three-step approach of Bray, Lanza, & Tan (2015). These methods have been studied in the related case of latent class analysis (LCA) with categorical indicators, but not as well studied for LPA with continuous indicators...
October 2016: Methodology: European Journal of Research Methods for the Behavioral & Social Sciences
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#12
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28629905/2017-american-college-of-rheumatology-american-association-of-hip-and-knee-surgeons-guideline-for-the-perioperative-management-of-antirheumatic-medication-in-patients-with-rheumatic-diseases-undergoing-elective-total-hip-or-total-knee-arthroplasty
#13
Susan M Goodman, Bryan Springer, Gordon Guyatt, Matthew P Abdel, Vinod Dasa, Michael George, Ora Gewurz-Singer, Jon T Giles, Beverly Johnson, Steve Lee, Lisa A Mandl, Michael A Mont, Peter Sculco, Scott Sporer, Louis Stryker, Marat Turgunbaev, Barry Brause, Antonia F Chen, Jeremy Gililland, Mark Goodman, Arlene Hurley-Rosenblatt, Kyriakos Kirou, Elena Losina, Ronald MacKenzie, Kaleb Michaud, Ted Mikuls, Linda Russell, Alexander Sah, Amy S Miller, Jasvinder A Singh, Adolph Yates
OBJECTIVE: This collaboration between the American College of Rheumatology and the American Association of Hip and Knee Surgeons developed an evidence-based guideline for the perioperative management of antirheumatic drug therapy for adults with rheumatoid arthritis (RA), spondyloarthritis (SpA) including ankylosing spondylitis and psoriatic arthritis, juvenile idiopathic arthritis (JIA), or systemic lupus erythematosus (SLE) undergoing elective total hip (THA) or total knee arthroplasty (TKA)...
June 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28629890/perceived-social-stress-and-symptom-severity-among-help-seeking-adolescents-with-versus-without-clinical-high-risk-for-psychosis
#14
Zachary B Millman, Steven C Pitts, Elizabeth Thompson, Emily R Kline, Caroline Demro, Marc J Weintraub, Jordan E DeVylder, Vijay A Mittal, Gloria M Reeves, Jason Schiffman
Research suggests that social stress exposure influences illness presentation and course among youth at clinical high-risk (CHR) for psychosis, though less is known about the extent to which self-reported perceptions of social stress relate to the severity of positive symptoms. Importantly, despite the notion that youth at CHR are especially susceptible to elevations in positive symptoms under conditions of stress, no study has examined this presumption relative to other psychiatric groups. Extending previous work demonstrating that perceived social stress was higher in a CHR group than in a clinical group of non-CHR, help-seeking controls, the current study aimed to: (1) examine whether perceived social stress is related to the severity of attenuated positive symptoms in the full sample (N=110); and (2) determine whether CHR status moderates the stress-symptom relation...
June 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28629055/a-novel-kind-of-polysulfone-material-with-excellent-biocompatibility-modified-by-the-sulfonated-hydroxypropyl-chitosan
#15
Tian-Ming Liu, Jing-Jie Xu, Yun-Ren Qiu
In order to ameliorate the biocompatibility of polysulfone (PSf), sulfonated hydroxypropyl chitosan (SHPCS) was grafted from PSf membrane material by Schiff-Base reaction. The original and modified membranes were characterized by attenuated total reflectance-Fourier transform infrared spectroscope (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), water contact angle (WCA) measurement, tensile strength test and antibacterial test in vitro, and the results indicated that the PSf modified by SHPCS (PSf-SHPCS) was synthesized successfully, the hydrophilicity of PSf-SHPCS membrane was improved to a great extent, all the membranes possessed good stability in physiological condition and the PSf-SHPCS membrane had good antibacterial property...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628720/cost-effective-teaching-of-radiology-with-preclinical-anatomy
#16
James S Wilson, Jacqueline Alvarez, Bonnie C Davis, Andre J Duerinckx
Graduating physicians in all subspecialties have an increased need for competency in radiology, particularly since the use of diagnostic imaging continues to grow. To integrate the teaching of radiology with anatomy during the first year of medical school at Howard University, a novel approach was developed to overcome the limitations of resources including funding, faculty, and curricular time. The resulting program relies on self-study and peer-to-peer interactions to develop proficiency at manipulating free versions of medical image viewer software (using the DICOM standard), identifying normal anatomy in medical images, and applying critical thinking skills to understand common clinical conditions...
June 19, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28628292/an-environment-sensitive-turn-on-fluorescent-polyamino-acid-fingerprinting-protein-populations-with-post-translational-modifications
#17
Shunsuke Tomita, Sayaka Ishihara, Ryoji Kurita
The identification of post-translational modifications (PTMs) in proteins has been of particular interest in the elucidation of human diseases and the improvement of therapeutic proteins. Herein, we report a novel strategy toward the construction of fingerprint-based PTM sensing systems as an alternative to conventional specific recognition tools. Our strategy is based on poly-L-lysine (PLL) derivatives with two distinct properties suitable to fingerprint-based protein sensing: i) a "turn-on" fluorescent signal upon binding to proteins, and ii) condition-dependent cross-reactivity toward proteins and PTMs...
June 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28626828/contribution-of-risk-factors-to-excess-mortality-in-isolated-and-lonely-individuals-an-analysis-of-data-from-the-uk-biobank-cohort-study
#18
Marko Elovainio, Christian Hakulinen, Laura Pulkki-Råback, Marianna Virtanen, Kim Josefsson, Markus Jokela, Jussi Vahtera, Mika Kivimäki
BACKGROUND: The associations of social isolation and loneliness with premature mortality are well known, but the risk factors linking them remain unclear. We sought to identify risk factors that might explain the increased mortality in socially isolated and lonely individuals. METHODS: We used prospective follow-up data from the UK Biobank cohort study to assess self-reported isolation (a three-item scale) and loneliness (two questions). The main outcomes were all-cause and cause-specific mortality...
June 2017: Lancet. Public Health
https://www.readbyqxmd.com/read/28625508/surgical-treatment-of-female-stress-urinary-incontinence-aua-sufu-guideline
#19
Kathleen C Kobashi, Michael E Albo, Roger R Dmochowski, David A Ginsberg, Howard B Goldman, Alexander Gomelsky, Stephen R Kraus, Jaspreet S Sandhu, Tracy Shepler, Jonathan R Treadwell, Sandip Vasavada, Gary E Lemack
PURPOSE: Stress urinary incontinence is a common problem experienced by many women that can have a significant negative impact on the quality of life of those who suffer from the condition and potentially those friends and family members whose lives and activities may also be limited. MATERIALS AND METHODS: A comprehensive search of the literature was performed by ECRI Institute. This search included articles published between January 2005 and December 2015 with an updated abstract search conducted through September 2016...
June 15, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28624435/revisiting-the-flip-side-long-term-depression-of-synaptic-efficacy-in-the-hippocampus
#20
REVIEW
Cristina Pinar, Christine J Fontaine, Juan Triviño-Paredes, Carina P Lottenberg, Joana Gil-Mohapel, Brian R Christie
Synaptic plasticity is widely regarded as a putative biological substrate for learning and memory processes. While both decreases and increases in synaptic strength are seen as playing a role in learning and memory, long-term depression (LTD) of synaptic efficacy has received far less attention than its counterpart long-term potentiation (LTP). Never-the-less, LTD at synapses can play an important role in increasing computational flexibility in neural networks. In addition, like learning and memory processes, the magnitude of LTD can be modulated by factors that include stress and sex hormones, neurotrophic support, learning environments, and age...
June 14, 2017: Neuroscience and Biobehavioral Reviews
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