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https://www.readbyqxmd.com/read/28208726/phenology-of-a-vegetation-barrier-and-resulting-impacts-on-near-highway-particle-number-and-black-carbon-concentrations-on-a-school-campus
#1
Christina H Fuller, David R Carter, Matthew J Hayat, Richard Baldauf, Rebecca Watts Hull
Traffic-related air pollution is a persistent concern especially in urban areas where populations live in close proximity to roadways. Innovative solutions are needed to minimize human exposure and the installation of vegetative barriers shows potential as a method to reduce near-road concentrations. This study investigates the impact of an existing stand of deciduous and evergreen trees on near-road total particle number (PNC) and black carbon (BC) concentrations across three seasons. Measurements were taken during spring, fall and winter on the campus of a middle school in the Atlanta (GA, USA) area at distances of 10 m and 50 m from a major interstate highway...
February 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28208368/random-walk-in-degree-space-and-the-time-dependent-watts-strogatz-model
#2
H L Casa Grande, M Cotacallapa, M O Hase
In this work, we propose a scheme that provides an analytical estimate for the time-dependent degree distribution of some networks. This scheme maps the problem into a random walk in degree space, and then we choose the paths that are responsible for the dominant contributions. The method is illustrated on the dynamical versions of the Erdős-Rényi and Watts-Strogatz graphs, which were introduced as static models in the original formulation. We have succeeded in obtaining an analytical form for the dynamics Watts-Strogatz model, which is asymptotically exact for some regimes...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28205406/potency-of-human-cardiosphere-derived-cells-from-patients-with-ischemic-heart-disease-is-associated-with-robust-vascular-supportive-ability
#3
Emma Harvey, Huajun Zhang, Pilar Sepúlveda, Sara P Garcia, Dominic Sweeney, Fizzah A Choudry, Delia Castellano, George N Thomas, Hassan Kattach, Romina Petersen, Derek J Blake, David P Taggart, Mattia Frontini, Suzanne M Watt, Enca Martin-Rendon
Cardiosphere-derived cell (CDC) infusion into damaged myocardium has shown some reparative effect; this could be improved by better selection of patients and cell subtype. CDCs isolated from patients with ischemic heart disease are able to support vessel formation in vitro but this ability varies between patients. The primary aim of our study was to investigate whether the vascular supportive function of CDCs impacts on their therapeutic potential, with the goal of improving patient stratification. A subgroup of patients produced CDCs which did not efficiently support vessel formation (poor supporter CDCs), had reduced levels of proliferation and increased senescence, despite them being isolated in the same manner and having a similar immunophenotype to CDCs able to support vessel formation...
February 16, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28205212/sarcoidosis-extent-relates-to-molecular-variability
#4
Calixte S Monast, Katherine Li, Marc A Judson, Robert P Baughman, Eric Wadman, Rosemary Watt, Philip E Silkoff, Elliot S Barnathan, Carrie Brodmerkel
The molecular basis of sarcoidosis phenotype heterogeneity and its relationship to effective treatment of sarcoidosis have not been elucidated. Peripheral samples from sarcoidosis subjects who participated in a phase 2 study of golimumab (anti-TNFα) and ustekinumab (anti-IL12p40) were used to measure the whole blood transcriptome and levels of serum proteins. Differential gene and protein expression analyses were used to explore the molecular differences between sarcoidosis phenotypes as defined by extent of organ involvement...
February 16, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28204767/core-domains-in-evaluating-patient-outcomes-after-acute-respiratory-failure-international-multidisciplinary-clinician-consultation
#5
Carol L Hodgson, Alison E Turnbull, Theodore J Iwashyna, Ann Parker, Wesley Davis, Clifton O Bingham, Nicola R Watts, Simon Finfer, Dale M Needham
No abstract text is available yet for this article.
February 1, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28199321/quasistatic-cavity-resonance-for-ubiquitous-wireless-power-transfer
#6
Matthew J Chabalko, Mohsen Shahmohammadi, Alanson P Sample
Wireless power delivery has the potential to seamlessly power our electrical devices as easily as data is transmitted through the air. However, existing solutions are limited to near contact distances and do not provide the geometric freedom to enable automatic and un-aided charging. We introduce quasistatic cavity resonance (QSCR), which can enable purpose-built structures, such as cabinets, rooms, and warehouses, to generate quasistatic magnetic fields that safely deliver kilowatts of power to mobile receivers contained nearly anywhere within...
2017: PloS One
https://www.readbyqxmd.com/read/28198881/mode-evolution-based-coupler-for-high-saturation-power-ge-on-si-photodetectors
#7
Matthew J Byrd, Erman Timurdogan, Zhan Su, Christopher V Poulton, Nicholas M Fahrenkopf, Gerald Leake, Douglas D Coolbaugh, Michael R Watts
We propose a mode-evolution-based coupler for high saturation power germanium-on-silicon photodetectors. This coupler uniformly illuminates the intrinsic germanium region of the detector, decreasing saturation effects, such as carrier screening, observed at high input powers. We demonstrate 70% more photocurrent generation (9.1-15.5 mA) and more than 40 times higher opto-electrical bandwidth (0.7-31 GHz) than conventional butt-coupled detectors under high-power illumination. The high-power and high-speed performance of the device, combined with the compactness of the coupling method, will enable new applications for integrated silicon photonics systems...
February 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28196539/does-access-to-a-demand-led-evidence-briefing-service-improve-uptake-and-use-of-research-evidence-by-health-service-commissioners-a-controlled-before-and-after-study
#8
Paul M Wilson, Kate Farley, Liz Bickerdike, Alison Booth, Duncan Chambers, Mark Lambert, Carl Thompson, Rhiannon Turner, Ian S Watt
BACKGROUND: The Health and Social Care Act mandated research use as a core consideration of health service commissioning arrangements in England. We undertook a controlled before and after study to evaluate whether access to a demand-led evidence briefing service improved the use of research evidence by commissioners compared with less intensive and less targeted alternatives. METHODS: Nine Clinical Commissioning Groups (CCGs) in the North of England received one of three interventions: (A) access to an evidence briefing service; (B) contact plus an unsolicited push of non-tailored evidence; or (C) unsolicited push of non-tailored evidence...
February 14, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28195177/prevalence-of-nonalcoholic-steatohepatitis-associated-cirrhosis-in-the-united-states-an-analysis-of-national-health-and-nutrition-examination-survey-data
#9
Mohammad Nasser Kabbany, Praveen Kumar Conjeevaram Selvakumar, Kymberly Watt, Rocio Lopez, Zade Akras, Nizar Zein, William Carey, Naim Alkhouri
OBJECTIVES: Nonalcoholic fatty liver disease (NAFLD) includes a wide spectrum of manifestations ranging from nonalcoholic fatty liver (NAFL) to nonalcoholic steatohepatitis (NASH), fibrosis and eventually cirrhosis. The prevalence of NAFLD has been shown to be increasing over time; however, the prevalence of NASH cirrhosis and advanced fibrosis over time has not been well studied. Estimate the changes in prevalence of NASH cirrhosis and NAFLD-associated advanced fibrosis among adults in the United States...
February 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28194666/increasing-burden-of-chronic-liver-disease-among-adolescents-and-young-adults-in-the-usa-a-silent-epidemic
#10
Iliana Doycheva, Kymberly D Watt, Ghassoub Rifai, Rachel Abou Mrad, Rocio Lopez, Nizar N Zein, William D Carey, Naim Alkhouri
BACKGROUND AND AIMS: Chronic liver disease (CLD) starts or becomes established in the adolescent and young adult (AYA) age group. This study aimed to estimate trends in CLD prevalence among US AYAs and to assess factors associated with CLD. METHODS: Cross-sectional data from 14,547 AYAs (population-weighted N = 68,274,386) aged 15-39 years enrolled in the National Health and Nutrition Examination Survey from 1988 to 2012 were used. Nonalcoholic fatty liver disease (NAFLD) was defined as elevated alanine aminotransferase (>19 U/L for females and >30 U/L for males) in subjects with BMI ≥ 25 kg/m(2); alcoholic liver disease (ALD) as excessive alcohol use (≥3 drinks/day for men and ≥2 drinks/day for women) and elevated aminotransferases after excluding alternative etiologies...
February 13, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28193770/%C3%AE-amyloid-prions-and-the-pathobiology-of-alzheimer-s-disease
#11
Joel C Watts, Stanley B Prusiner
Alzheimer's disease (AD) is the most common neurodegenerative disease in humans and will pose a considerable challenge to healthcare systems in the coming years. Aggregation of the β-amyloid (Aβ) peptide within the brain is thought to be an initiating event in AD pathogenesis. Many recent studies in transgenic mice have provided evidence that Aβ aggregates become self-propagating during disease, leading to a cascade of protein aggregation in the brain, which may underlie the progressive nature of AD. The ability to self-propagate and the existence of distinct "strains" reveals that Aβ aggregates exhibit many properties indistinguishable from those of prions composed of PrP(Sc) proteins...
February 13, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28193264/the-clinical-picture-of-cachexia-a-mosaic-of-different-parameters-experience-of-503-patients
#12
S Schwarz, O Prokopchuk, K Esefeld, S Gröschel, J Bachmann, S Lorenzen, H Friess, M Halle, M E Martignoni
BACKGROUND: Despite our growing knowledge about the pathomechanisms of cancer cachexia, a whole clinical picture of the cachectic patient is still missing. Our objective was to evaluate the clinical characteristics in cancer patients with and without cachexia to get the whole picture of a cachectic patient. METHODS: Cancer patients of the University Clinic "Klinikum rechts der Isar" with gastrointestinal, gynecological, hematopoietic, lung and some other tumors were offered the possibility to take part in the treatment concept including a nutrition intervention and an individual training program according to their capability...
February 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28193198/prevalence-of-intimate-partner-violence-and-abuse-and-associated-factors-among-women-enrolled-into-a-cluster-randomised-trial-in-northwestern-tanzania
#13
Saidi Kapiga, Sheila Harvey, Abdul Khalie Muhammad, Heidi Stöckl, Gerry Mshana, Ramadhan Hashim, Christian Hansen, Shelley Lees, Charlotte Watts
BACKGROUND: Intimate partner violence (IPV) is recognised as an important public health and social problem, with far reaching consequences for women's physical and emotional health and social well-being. Furthermore, controlling behaviour by a partner has a similar impact on women's well-being, yet little is known about the prevalence of this type of behaviour and other related abuses in Tanzania and in other sub-Saharan African countries. METHODS: We conducted a cross-sectional study to determine the lifetime and past 12-month prevalence of physical and sexual IPV, economic abuse, emotional abuse and controlling behaviour among ever-partnered women in Mwanza, Tanzania...
February 14, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28191447/reexamining-chronic-toxoplasma-gondii-infection-surprising-activity-for-a-dormant-parasite
#14
Anthony P Sinai, Elizabeth A Watts, Animesh Dhara, Robert D Murphy, Matthew S Gentry, Abhijit Patwardhan
PURPOSE OF REVIEW: Despite over a third of the world's population being chronically infected with Toxoplasma gondii, little is known about this largely asymptomatic phase of infection. This stage is mediated in vivo by bradyzoites within tissue cysts. The absence of overt symptoms has been attributed to the dormancy of bradyzoites. In this review, we reexamine the conventional view of chronic toxoplasmosis in light of emerging evidence challenging both the nature of dormancy and the consequences of infection in the CNS...
December 2016: Current Clinical Microbiology Reports
https://www.readbyqxmd.com/read/28186938/an-online-questionnaire-survey-of-uk-general-practitioners-knowledge-and-management-of-familial-hypercholesterolaemia
#15
See Kwok, Jing Pang, Safwaan Adam, Gerald F Watts, Handrean Soran
OBJECTIVE: Early diagnosis and treatment of heterozygous familial hypercholesterolaemia (HeFH) is known to be associated with reduced mortality from premature coronary artery disease, but HeFH remains underdiagnosed. This survey aims to determine knowledge and current management of HeFH in general practice. SETTING: An online questionnaire was administered to general practitioners' (GPs') in the North West of England to assess their knowledge and management of HeFH...
November 9, 2016: BMJ Open
https://www.readbyqxmd.com/read/28185371/do-depression-and-anxiety-profiles-over-time-predict-persistent-post-surgical-pain-a-study-in-cardiac-surgery-patients
#16
M Gabrielle Pagé, J Watt-Watson, M Choinière
BACKGROUND: Rates of depression and anxiety in cardiac surgery patients are higher than in the general population. The development of persistent post-surgical pain (PPSP) in this population is also concerning. The objectives of this study were to (1) identify anxiety and depression trajectories of cardiac surgery patients over a 2-year period; (2) examine demographic and clinical characteristics associated with trajectory memberships and (3) determine if anxiety and/or depression trajectories predict PPSP...
February 10, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28183027/effect-of-biochars-produced-from-solid-organic-municipal-waste-on-soil-quality-parameters
#17
P Randolph, R R Bansode, O A Hassan, Dj Rehrah, R Ravella, M R Reddy, D W Watts, J M Novak, M Ahmedna
New value-added uses for solid municipal waste are needed for environmental and economic sustainability. Fortunately, value-added biochars can be produced from mixed solid waste, thereby addressing solid waste management issues, and enabling long-term carbon sequestration. We hypothesize that soil deficiencies can be remedied by the application of municipal waste-based biochars. Select municipal organic wastes (newspaper, cardboard, woodchips and landscaping residues) individually or in a 25% blend of all four waste streams were used as feedstocks of biochars...
February 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28182508/effects-of-carbohydrate-ingestion-and-carbohydrate-mouth-rinse-on-repeat-sprint-performance
#18
Ben M Krings, Timothy J Peterson, Brandon D Shepherd, Matthew J McAllister, JohnEric W Smith
The purpose of this investigation was to examine to the influence of carbohydrate ingestion (CHOI) and carbohydrate mouth rinse (CHOR) on acute repeat maximal sprint performance. Fourteen healthy males (age: 21.7 ± 1.8 years, mass: 82.3 ± 12.3 kg) completed a total of five 15-second maximal repeat sprints on a cycle ergometer against 0.075 kg . kg(-1) body mass each separated by four minutes of active recovery. Subjects completed four experimental trials and were randomly assigned one of four treatments: (1) CHOI, (2) CHOR, (3) placebo mouth rinse (PLAR), (4) placebo ingestion (PLAI)...
February 9, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28181684/exercise-based-cardiac-rehabilitation-for-adults-with-atrial-fibrillation
#19
REVIEW
Signe S Risom, Ann-Dorthe Zwisler, Pernille P Johansen, Kirstine L Sibilitz, Jane Lindschou, Christian Gluud, Rod S Taylor, Jesper H Svendsen, Selina K Berg
BACKGROUND: Exercise-based cardiac rehabilitation may benefit adults with atrial fibrillation or those who had been treated for atrial fibrillation. Atrial fibrillation is caused by multiple micro re-entry circuits within the atrial tissue, which result in chaotic rapid activity in the atria. OBJECTIVES: To assess the benefits and harms of exercise-based rehabilitation programmes, alone or with another intervention, compared with no-exercise training controls in adults who currently have AF, or have been treated for AF...
February 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28181571/high-power-dual-wavelength-ho-doped-fiber-laser-at-2%C3%A2-%C3%AE-m-tandem-pumped-by-a-1-15%C3%A2-%C3%AE-m-fiber-laser
#20
Xiaoxi Jin, Zhaokai Lou, Yizhu Chen, Pu Zhou, Hanwei Zhang, Hu Xiao, Zejin Liu
We demonstrated a high-power continuous-wave (CW) dual-wavelength Ho-doped fiber laser (HDFL) at 2049 nm and 2153 nm with a simple coupled-cavity configuration. A ~100 W laser diode-pumped fiber laser at 1150 nm served as the pump source. The maximum output power reached ~22.3 W and the slope efficiency was 23%. By altering the incident pump power, the power ratio of two signal wavelengths could be tuned in a large range due to gain competition. As far as we know, this is the first CW dual-wavelength HDFL with the power exceeding ten-watt-level, and the first dual-wavelength HDFL with the central wavelengths exceeding 2...
February 9, 2017: Scientific Reports
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