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https://www.readbyqxmd.com/read/28735246/nurses-reports-of-staffing-adequacy-and-surgical-site-infections-a-cross-sectional-multi-centre-study
#1
Christine Tvedt, Ingeborg Strømseng Sjetne, Jon Helgeland, Hege Line Løwer, Geir Bukholm
BACKGROUND: It is indicated that healthcare personnel's perceptions of the work environment may reflect the clinical outcomes for the patients they care for. However, the body of evidence is inconsistent when it comes to the association between work environment and surgical site infection. OBJECTIVES: The aim of this study is to examine the associations between nurse-reported characteristics of the work environment and incidence of surgical site infections after total hip arthroplasty...
July 14, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28735190/surface-complexation-modeling-of-calcite-zeta-potential-measurements-in-brines-with-mixed-potential-determining-ions-ca-2-co3-2-mg-2-so4-2-for-characterizing-carbonate-wettability
#2
Jin Song, Yongchao Zeng, Le Wang, Xindi Duan, Maura Puerto, Walter G Chapman, Sibani L Biswal, George J Hirasaki
This study presents experiment and surface complexation modeling (SCM) of synthetic calcite zeta potential in brine with mixed potential determining ions (PDI) under various CO2 partial pressures. Such SCM, based on systematic zeta potential measurement in mixed brines (Mg(2+), SO4(2-), Ca(2+) and CO3(2-)), is currently not available in the literature and is expected to facilitate understanding of the role of electrostatic forces in calcite wettability alteration. We first use a double layer SCM to model experimental zeta potential measurements and then systematically analyze the contribution of charged surface species...
July 11, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28735151/do-air-pollution-and-neighborhood-greenness-exposures-improve-the-predicted-cardiovascular-risk
#3
Maayan Yitshak-Sade, Itai Kloog, Victor Novack
BACKGROUND: Numerous studies show associations between exposure to Particulate Matter and Cardiovascular disease (CVD). Current cardiovascular equations incorporate the major risk factors for CVD. The patients' environment, however, is not incorporated in these equations. METHODS: In a retrospective analysis, we assessed the contribution of neighborhood greenness and particulate matter (coarse-PM and PM<2.5μm-PM2.5) to the development of CVD by analyzing the change in prediction abilities...
July 20, 2017: Environment International
https://www.readbyqxmd.com/read/28735104/effect-of-limb-dominance-and-sex-on-neuromuscular-activation-patterns-in-athletes-under-12-performing-unanticipated-side-cuts
#4
Michael J Del Bel, Alana K Fairfax, Michelle L Jones, Kendal Steele, Scott C Landry
Non-contact ACL injuries are one of the most common injuries to the knee joint among adolescent/collegiate athletes, with sex and limb dominance being identified as risk factors. In children under 12years of age (U12), these injuries occur less often and there is no sex-bias present. This study set out to explore if sex and/or limb dominance differences exist in neuromuscular activations in U12 athletes. Thirty-four U12 males and females had six bilateral muscles analyzed during unanticipated side-cuts. Principal component analysis was performed, capturing differences in overall magnitudes and timing of peak magnitudes...
July 14, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28734815/progressive-macula-vessel-density-loss-in-primary-open-angle-glaucoma-a-longitudinal-study
#5
Takuhei Shoji, Linda M Zangwill, Tadamichi Akagi, Luke J Saunders, Adeleh Yarmohammadi, Patricia Isabel C Manalastas, Rafaella C Penteado, Robert N Weinreb
PURPOSE: To characterize the rate of macula vessel density loss in primary open angle glaucoma (POAG), glaucoma suspect, and healthy eyes. DESIGN: Longitudinal, observational cohort from the Diagnostic Innovations in Glaucoma Study. METHODS: One hundred eyes (32 POAG, 30 glaucoma suspect and 38 healthy) followed for at least one year with optical coherence tomography angiography (OCT-A) imaging on at least two visits were included. Vessel density was calculated in the macula superficial layer...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734357/ysz-based-sensor-using-cr-fe-based-spinel-oxide-electrodes-for-selective-detection-of-co
#6
Sri Ayu Anggraini, Yuki Fujio, Hiroshi Ikeda, Norio Miura
A selective carbon monoxide (CO) sensor was developed by the use of both of CuCrFeO4 and CoCrFeO4 as the sensing electrode (SE) for yttria-stabilized zirconia (YSZ)-based potentiometric sensor. The sensing-characteristic examinations of the YSZ-based sensors using each of spinel oxides as the single-SE sensor showed that CuCrFeO4-SE had the ability to detect CO, hydrocarbons and NOx gases, while CoCrFeO4-SE was sensitive to hydrocarbons and NOx gases. Thus, when both SEs were paired as a combined-SEs sensor, the resulting sensor could generate a selective response to CO at 450 °C under humid conditions...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734282/cluster-expansion-of-the-solvation-free-energy-difference-systematic-improvements-in-the-solvation-of-single-ions
#7
Josefredo R Pliego
The cluster expansion method has been used in the imperfect gas theory for several decades. This paper proposes a cluster expansion of the solvation free energy difference. This difference, which results from a change in the solute-solvent potential energy, can be written as the logarithm of a finite series. Similar to the Mayer function, the terms in the series are related to configurational integrals, which makes the integrand relevant only for configurations of the solvent molecules close to the solute. In addition, the terms involve interaction of solute with one, two, and so on solvent molecules...
July 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28734247/seasonal-variation-in-water-uptake-patterns-of-three-plant-species-based-on-stable-isotopes-in-the-semi-arid-loess-plateau
#8
Jian Wang, Bojie Fu, Nan Lu, Li Zhang
Water is a limiting factor and significant driving force for ecosystem processes in arid and semi-arid areas. Knowledge of plant water uptake pattern is indispensable for understanding soil-plant interactions and species coexistence. The 'Grain for Green' project that started in 1999 in the Loess Plateau of China has led to large scale vegetation change. However, little is known about the water uptake patterns of the main plant species that inhabit in this region. In this study, the seasonal variations in water uptake patterns of three representative plant species, Stipa bungeana, Artemisia gmelinii and Vitex negundo, that are widely distributed in the semi-arid area of the Loess Plateau, were identified by using dual stable isotopes of δ(2)H and δ(18)O in plant and soil water coupled with a Bayesian mixing model MixSIAR...
July 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28734121/the-impact-of-chronic-psychiatric-disorders-on-cognitive-decline
#9
R Villeneuve, C Blanchard, L Rullier, N Raoux, V Bergua, J-F Dartigues, K Pérès, H Amieva
OBJECTIVES: Based on seemingly contradictory results in the existing literature, the objective of our study was to investigate whether older individuals suffering from chronic psychiatric disorders show a more rapid decline in cognitive performances than their non-psychiatric counterparts, or if the pattern of decline through older age is similar in both groups. METHOD: A total of 820 older adults were selected from the Ageing Multidisciplinary Investigation (AMI) cohort study, which studies health-related issues of people over 65 years old living in rural areas...
July 22, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28734073/differential-calcium-sensitivity-in-nav-1-5-mixed-syndrome-mutants
#10
Mena Abdelsayed, Alban-Elouen Baruteau, Karen Gibbs, Shubhayan Sanatani, Andrew D Krahn, Vincent Probst, Peter C Ruben
INTRODUCTION: Inherited arrhythmias may arise from mutations in the SCN5a gene, which encodes the cardiac voltage-gated sodium channel, NaV 1.5. Mutants in NaV 1.5 result in Brugada Syndrome (BrS1), Long-QT Syndrome (LQT3), or mixed syndromes (an overlap of BrS1/LQT3). Exercise is a potential arrhythmogenic trigger in mixed syndromes. We sought to determine the effects of elevated cytosolic calcium, common during exercise, in mixed syndrome NaV 1.5 mutants. METHODS: We used whole-cell patch-clamp to assess the biophysical properties of NaV 1...
July 22, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28733932/a-new-algorithm-for-ecg-interference-removal-from-single-channel-emg-recording
#11
Shayan Yazdani, Mahmood Reza Azghani, Mohammad Hossein Sedaaghi
This paper presents a new method to remove electrocardiogram (ECG) interference from electromyogram (EMG). This interference occurs during the EMG acquisition from trunk muscles. The proposed algorithm employs progressive image denoising (PID) algorithm and ensembles empirical mode decomposition (EEMD) to remove this type of interference. PID is a very recent method that is being used for denoising digital images mixed with white Gaussian noise. It detects white Gaussian noise by deterministic annealing. To the best of our knowledge, PID has never been used before, in the case of EMG and ECG separation or in other 1D signal denoising applications...
July 21, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28733927/nut-intake-and-5-year-changes-in-body-weight-and-obesity-risk-in-adults-results-from-the-epic-panacea-study
#12
Heinz Freisling, Hwayoung Noh, Nadia Slimani, Véronique Chajès, Anne M May, Petra H Peeters, Elisabete Weiderpass, Amanda J Cross, Guri Skeie, Mazda Jenab, Francesca R Mancini, Marie-Christine Boutron-Ruault, Guy Fagherazzi, Verena A Katzke, Tilman Kühn, Annika Steffen, Heiner Boeing, Anne Tjønneland, Cecilie Kyrø, Camilla P Hansen, Kim Overvad, Eric J Duell, Daniel Redondo-Sánchez, Pilar Amiano, Carmen Navarro, Aurelio Barricarte, Aurora Perez-Cornago, Konstantinos K Tsilidis, Dagfinn Aune, Heather Ward, Antonia Trichopoulou, Androniki Naska, Philippos Orfanos, Giovanna Masala, Claudia Agnoli, Franco Berrino, Rosario Tumino, Carlotta Sacerdote, Amalia Mattiello, H Bas Bueno-de-Mesquita, Ulrika Ericson, Emily Sonestedt, Anna Winkvist, Tonje Braaten, Isabelle Romieu, Joan Sabaté
PURPOSE: There is inconsistent evidence regarding the relationship between higher intake of nuts, being an energy-dense food, and weight gain. We investigated the relationship between nut intake and changes in weight over 5 years. METHODS: This study includes 373,293 men and women, 25-70 years old, recruited between 1992 and 2000 from 10 European countries in the European Prospective Investigation into Cancer and Nutrition (EPIC) study. Habitual intake of nuts including peanuts, together defined as nut intake, was estimated from country-specific validated dietary questionnaires...
July 21, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28733855/transportability-of-an-evidence-based-early-childhood-intervention-in-a-low-income-african-country-results-of-a-cluster-randomized-controlled-study
#13
Keng-Yen Huang, Janet Nakigudde, Dana Rhule, Joy Louise Gumikiriza-Onoria, Gloria Abura, Bukky Kolawole, Sheila Ndyanabangi, Sharon Kim, Edward Seidman, Gbenga Ogedegbe, Laurie Miller Brotman
Children in Sub-Saharan Africa (SSA) are burdened by significant unmet mental health needs. Despite the successes of numerous school-based interventions for promoting child mental health, most evidence-based interventions (EBIs) are not available in SSA. This study investigated the implementation quality and effectiveness of one component of an EBI from a developed country (USA) in a SSA country (Uganda). The EBI component, Professional Development, was provided by trained Ugandan mental health professionals to Ugandan primary school teachers...
July 21, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28733816/relative-weighting-of-acoustic-information-during-mating-decisions-in-grasshoppers-indicates-signatures-of-sexual-selection
#14
Jan Clemens, Jennifer Aufderheide, Bernhard Ronacher
The decision with whom to mate is crucial in determining an individual's fitness and is often based on the evaluation of visual or acoustic displays produced during courtship. Accordingly, the algorithms for evaluating such courtship signals are shaped by sexual selection and should reflect the expected benefits and costs of mating: signals bearing heterospecific features should be rapidly rejected, since mating would produce no fertile offspring, while signals resembling conspecific ones should be weighted proportional to mate quality...
July 21, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28733289/an-enterotoxin-like-binary-protein-from-pseudomonas-protegens-with-potent-nematicidal-activity
#15
Jun-Zhi Wei, Daniel L Siehl, Zhenglin Hou, Barbara Rosen, Jarred Oral, Christopher G Taylor, Gusui Wu
Soil microbes are a major food source for free-living soil nematodes. It is known that certain soil bacteria have evolved systems to combat predation. We identified the nematode-antagonistic Pseudomonas protegens strain 15G2 from screening of microbes. Through protein purification we identified a binary protein, designated as Pp-ANP, that is responsible for the nematicidal activity. This binary protein inhibits Caenorhabditis elegans growth and development by arresting larvae at L1 stage and killing older staged worms...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28733128/dance-for-health-an-intergenerational-program-to-increase-access-to-physical-activity
#16
Krista Schroeder, Sarah J Ratcliffe, Adriana Perez, David Earley, Cory Bowman, Terri H Lipman
PURPOSE: The purpose of this study was to evaluate Dance for Health, an intergenerational program to increase access to physical activity in an underserved, high risk urban community. DESIGN AND METHODS: Dance for Health was developed using community-based participatory research methods and evaluated using an observational study design. The program entailed two hour line dancing sessions delivered by trained dance instructors in the neighborhood recreation center...
July 18, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28732985/numerical-models-for-the-study-of-the-nonlinear-frequency-mixing-in-two-and-three-dimensional-resonant-cavities-filled-with-a-bubbly-liquid
#17
María Teresa Tejedor Sastre, Christian Vanhille
The objective of this work is to develop versatile numerical models to study the nonlinear distortion of ultrasounds and the generation of low-ultrasonic frequency signals by nonlinear frequency mixing in two and three-dimensional resonators filled with bubbly liquids. The interaction of the acoustic field and the bubble vibrations is modeled through a coupled differential system formed by the multi-dimensional wave equation and a Rayleigh-Plesset equation. The numerical models we develop are based on multi-dimensional finite-volume techniques and a time discretization carried out by finite differences...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28732401/can-brook-trout-survive-climate-change-in-large-rivers-if-it-rains
#18
Eric R Merriam, Rodrigo Fernandez, J Todd Petty, Nicolas Zegre
We provide an assessment of thermal characteristics and climate change vulnerability for brook trout (Salvelinus fontinalis) habitats in the upper Shavers Fork sub-watershed, West Virginia. Spatial and temporal (2001-2015) variability in observed summer (6/1-8/31) stream temperatures was quantified in 23 (9 tributary, 14 main-stem) reaches. We developed a mixed effects model to predict site-specific mean daily stream temperature from air temperature and discharge and coupled this model with a hydrologic model to predict future (2016-2100) changes in stream temperature under low (RCP 4...
July 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28732305/association-between-gaseous-air-pollutants-and-inflammatory-hemostatic-and-lipid-markers-in-a-cohort-of-midlife-women
#19
Xiangmei May Wu, Rupa Basu, Brian Malig, Rachel Broadwin, Keita Ebisu, Ellen B Gold, Lihong Qi, Carol Derby, Rochelle S Green
BACKGROUND: Exposures to ambient gaseous pollutants have been linked to cardiovascular diseases (CVDs), but the biological mechanisms remain uncertain. OBJECTIVES: This study examined the changes in CVD marker levels resulting from elevated exposure to ambient gaseous pollutants in midlife women. METHODS: Annual repeated measurements of several inflammatory, hemostatic and lipid makers were obtained from 2306 midlife women enrolled in the longitudinal Study of Women's Health Across the Nation (SWAN) between 1999 and 2004...
July 18, 2017: Environment International
https://www.readbyqxmd.com/read/28732249/evaluating-alzheimer-s-disease-biomarkers-as-mediators-of-age-related-cognitive-decline
#20
Timothy J Hohman, Doug Tommet, Shawn Marks, Joey Contreras, Rich Jones, Dan Mungas
Age-related changes in cognition are partially mediated by the presence of neuropathology and neurodegeneration. This manuscript evaluates the degree to which biomarkers of Alzheimer's disease, (AD) neuropathology and longitudinal changes in brain structure, account for age-related differences in cognition. Data from the AD Neuroimaging Initiative (n = 1012) were analyzed, including individuals with normal cognition and mild cognitive impairment. Parallel process mixed effects regression models characterized longitudinal trajectories of cognitive variables and time-varying changes in brain volumes...
July 4, 2017: Neurobiology of Aging
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