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https://www.readbyqxmd.com/read/28728352/the-association-between-physical-activity-and-atrial-fibrillation-applying-heaviside-function-in-survival-analysis-the-multi-ethnic-study-of-atherosclerosis-mesa
#1
Yaser Mokhayeri, Seyed Saeed Hashemi Nazari, Mohammad Ali Mansournia, Hamid Soori, Soheila Khodakarim
Objectives: Although the effect of physical activity (PA) on the incidence of atrial fibrillation (AF) has been studied, contradictory results have been reported. These seemingly different results may reflect alternate effects of different types of PA upon AF as well as gender interactions. Therefore, we aimed to evaluate the association of PA types namely total, moderate/vigorous, intentional, as well as walking pace on AF risk, in men and women. Methods: Using the MESA Typical Week Physical Activity Survey, three PA measures and walking pace among 6487 men and women aged 45-84 years were calculated...
June 18, 2017: Epidemiology and Health
https://www.readbyqxmd.com/read/28728184/multi-spectral-imaging-of-circumscribed-choroidal-hemangioma-introduction
#2
Nicola Y Gan, Cheryl Zimmer, Wai-Ching Lam
BACKGROUND AND OBJECTIVE: To illustrate the features of a circumscribed choroidal hemangioma (CCH) using Annidis RHA multi-spectral imaging (MSI) technology (Annidis Corporation, Ottawa, Canada). This novel imaging technique uses non-overlapping, narrow-band LED light sources ranging from 520 nm to 940 nm to create a monochromatic series of en face fundus images and oxy/deoxyhemoglobin contrasted maps of the retina and choroid. PATIENTS AND METHODS: Annidis RHA MSI images were taken of a 67-year-old Chinese male with CCH...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28728153/genetic-variants-of-cytochrome-cyp2d6-in-two-mixed-chilean-populations
#3
Mónica Acuña, Eric Pinto, Paulina Olivares, Carolina Ríos
OBJECTIVES: It is known that the interindividual and interethnic variability of the genetic polymorphisms of CYP2D6 plays an important role in the presentation of adverse drug reactions and concerning lack of therapeutic effects in humans. However, there are few data available from mixed populations of Latin America, including the Chilean. The aim of this study was therefore to estimate the frequencies of CYP2D6 variants in two samples of hospitals from the northern (Hospital San José, HSJ) and eastern (Clínica Las Condes, CLC) parts of Santiago, Chile, with different degrees of Amerindian admixture (HSJ: 34...
July 21, 2017: Human Heredity
https://www.readbyqxmd.com/read/28728131/the-distribution-of-organochlorine-pesticides-in-sediments-from-isimangaliso-wetland-park-ecological-risks-and-implications-for-conservation-in-a-biodiversity-hotspot
#4
Archibold Buah-Kwofie, Marc S Humphries
The iSimangaliso Wetland Park World Heritage site, located on the east coast of South Africa, spans ∼3300 km(2) and constitutes the largest protected estuarine environment for hippopotami, crocodiles and aquatic birds in Africa. Given the ecological importance of this site and continued use of organochlorine pesticides (OCPs) in the region, this study focused on the nature, distribution and potential sources of organochlorine contamination within iSimangaliso Wetland Park. OCPs were widely distributed in surface sediment samples obtained from the four main Ramsar wetland systems within the park (Lake St Lucia, Mkhuze, Lake Sibaya and Kosi Bay)...
July 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28728096/early-life-stress-explains-reduced-positive-memory-biases-in-remitted-depression
#5
J A Gethin, K E Lythe, C I Workman, A Mayes, J Moll, R Zahn
BACKGROUND: There is contradictory evidence regarding negative memory biases in major depressive disorder (MDD) and whether these persist into remission, which would suggest their role as vulnerability traits rather than correlates of mood state. Early life stress (ELS), common in patients with psychiatric disorders, has independently been associated with memory biases, and confounds MDD versus control group comparisons. Furthermore, in most studies negative biases could have resulted from executive impairments rather than memory difficulties per se...
July 10, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28728073/sudden-perinatal-death-due-to-rupture-of-congenital-cardiac-diverticulum-pathological-findings-and-medico-legal-investigations-in-malpractice-charge
#6
Matteo Marchesi, Michele Boracchi, Guendalina Gentile, Francesca Maghin, Riccardo Zoja
Congenital diverticula of the left ventricle, very rare malformations, are determined by an abnormal embryonic development of the ventricular wall and can be isolated or associated to other cardiac anomalies. In most of the cases, these pathologies are not symptomatic and in some patients can be associated to ventricular arrhythmia, cardiac rupture with tamponade and sudden death. Authors are presenting the case of a sudden death in an 8-weeks-old newborn due to rupture of a cardiac congenital diverticulum of the left ventricle, discovered only at the moment of the autopsic examination...
July 12, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28728056/sequence-based-diversity-of-23-autosomal-str-loci-in-koreans-investigated-using-an-in-house-massively-parallel-sequencing-panel
#7
Eun Hye Kim, Hwan Young Lee, So Yeun Kwon, Eun Young Lee, Woo Ick Yang, Kyoung-Jin Shin
As DNA databases continue to grow and international cooperation increases, forensic STR loci have expanded to increase the discriminatory power and inter-database compatibility. Current capillary electrophoresis (CE) and/or massively parallel sequencing (MPS)-based commercial STR analysis systems reflect such changing trends of expanding STR loci. Due to the general gains of larger multiplexing and the detection of sequence variation, the application of MPS technology to STR analysis has further improved discrimination and is expected to aid in mixture interpretation by increasing the effective number of alleles...
July 9, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28728030/enhanced-visible-light-photocatalytic-hydrogen-evolution-over-porphyrin-hybridized-graphitic-carbon-nitride
#8
Shunkang Mei, Jianping Gao, Ye Zhang, Jiangbing Yang, Yongli Wu, Xiaoxue Wang, Ruiru Zhao, Xiangang Zhai, Chaoyue Hao, Ruixia Li, Jing Yan
Tetra (4-carboxyphenyl) porphyrin (TCPP) was loaded on the surface of Pt/g-C3N4 via a simple adsorption process, and the microstructure and chemical structure of the composites were characterized by high resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, UV-visible diffused reflectance spectroscopy and photoluminescence spectroscopy. Loading TCPP onto Pt/g-C3N4 enhanced the visible-light-driven photocatalytic evolution of H2 from water...
July 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28728028/direct-evidence-of-the-photocatalytic-generation-of-reactive-oxygen-species-ros-in-a-bi2w2o9-layered-structure
#9
S Obregón, M A Ruíz-Gómez, D B Hernández-Uresti
In the present work, the Bi2W2O9 photocatalyst has been prepared by an easy and prompt co-precipitation route. From the structural characterization, we have stated that the formation of the Bi2W2O9 is accompanied by a small amount of the Bi2WO6 oxide, which gradually decreases by increasing the calcination temperature. The conduction and valence band edges of the Bi2W2O9 semiconductor were experimentally estimated for the first time using the X-ray photoelectron (XPS) and diffuse reflectance (DRS) spectroscopies...
July 8, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28727963/going-in-many-right-directions-all-at-once
#10
Susan T Fiske
When asked whether the field is going in the right direction, my answer is "yes, mostly." Policymakers' respect and the public's interest put us in the spotlight for our intrinsic strengths-but they also draw attention to our weaknesses as reflected by the replication crisis, about which reasonable opinions differ. Among other concerns, civility and mutual tolerance have sometimes been an issue in these debates. As an example of a constructive debate, our lab's recent experience with mutually respectful engagement has advanced solving one scientific puzzle...
July 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28727961/psychology-s-replication-crisis-and-the-grant-culture-righting-the-ship
#11
Scott O Lilienfeld
The past several years have been a time for soul searching in psychology, as we have gradually come to grips with the reality that some of our cherished findings are less robust than we had assumed. Nevertheless, the replication crisis highlights the operation of psychological science at its best, as it reflects our growing humility. At the same time, institutional variables, especially the growing emphasis on external funding as an expectation or de facto requirement for faculty tenure and promotion, pose largely unappreciated hazards for psychological science, including (a) incentives for engaging in questionable research practices, (b) a single-minded focus on programmatic research, (c) intellectual hyperspecialization, (d) disincentives for conducting direct replications, (e) stifling of creativity and intellectual risk taking, (f) researchers promising more than they can deliver, and (g) diminished time for thinking deeply...
July 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28727902/glucocorticoid-assessment-in-the-domestic-horse-the-impact-of-time-and-climatic-variables-on-sample-integrity
#12
K Yarnell, S L Walker
BACKGROUND: Assessment of faecal glucocorticoid metabolites (FGM) offers a non-invasive method of monitoring adrenal activity in domestic horses. Sample collection is on an opportunistic basis, and if samples are not fresh or have been exposed to the elements before they are identified, then they may not accurately reflect FGM concentration. OBJECTIVES: To explore the impact of a range of environmental conditions upon the integrity of FGM levels in equine faeces...
July 20, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28727806/genocore-a-simple-and-fast-algorithm-for-core-subset-selection-from-large-genotype-datasets
#13
Seongmun Jeong, Jae-Yoon Kim, Soon-Chun Jeong, Sung-Taeg Kang, Jung-Kyung Moon, Namshin Kim
Selecting core subsets from plant genotype datasets is important for enhancing cost-effectiveness and to shorten the time required for analyses of genome-wide association studies (GWAS), and genomics-assisted breeding of crop species, etc. Recently, a large number of genetic markers (>100,000 single nucleotide polymorphisms) have been identified from high-density single nucleotide polymorphism (SNP) arrays and next-generation sequencing (NGS) data. However, there is no software available for picking out the efficient and consistent core subset from such a huge dataset...
2017: PloS One
https://www.readbyqxmd.com/read/28727783/the-impact-of-local-government-investment-on-the-carbon-emissions-reduction-effect-an-empirical-analysis-of-panel-data-from-30-provinces-and-municipalities-in-china
#14
Lingyun He, Fang Yin, Zhangqi Zhong, Zhihua Ding
Among studies of the factors that influence carbon emissions and related regulations, economic aggregates, industrial structures, energy structures, population levels, and energy prices have been extensively explored, whereas studies from the perspective of fiscal leverage, particularly of local government investment (LGI), are rare. Of the limited number of studies on the effect of LGI on carbon emissions, most focus on its direct effect. Few studies consider regulatory effects, and there is a lack of emphasis on local areas...
2017: PloS One
https://www.readbyqxmd.com/read/28727757/development-of-organic-fertilizers-from-food-market-waste-and-urban-gardening-by-composting-in-ecuador
#15
J Jara-Samaniego, M D Pérez-Murcia, M A Bustamante, C Paredes, A Pérez-Espinosa, I Gavilanes-Terán, M López, F C Marhuenda-Egea, H Brito, R Moral
Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities...
2017: PloS One
https://www.readbyqxmd.com/read/28727738/propagation-characteristics-of-pulverized-coal-and-gas-two-phase-flow-during-an-outburst
#16
Aitao Zhou, Kai Wang, Lingpeng Fan, Bo Tao
Coal and gas outbursts are dynamic failures that can involve the ejection of thousands tons of pulverized coal, as well as considerable volumes of gas, into a limited working space within a short period. The two-phase flow of gas and pulverized coal that occurs during an outburst can lead to fatalities and destroy underground equipment. This article examines the interaction mechanism between pulverized coal and gas flow. Based on the role of gas expansion energy in the development stage of outbursts, a numerical simulation method is proposed for investigating the propagation characteristics of the two-phase flow...
2017: PloS One
https://www.readbyqxmd.com/read/28727700/therapeutic-role-of-placebo-evolution-of-a-new-paradigm-in-understanding-research-and-clinical-practice
#17
Laxmaiah Manchikanti, Mark V Boswell, Alan D Kaye, Standiford Helm Ii, Joshua A Hirsch
Research into interventional techniques in managing chronic spinal pain continues to be challenging, mystifying, confusing, and biased. Insight, or lack thereof, into placebo and nocebo phenomena contributes mightily to these difficulties. Unfortunately, placebo-nocebo responses are the subject of numerous controversies and challenges from not only a research perspective, but also clinical perspective. While interventionalists consider the biggest threat to interventional pain management research is inappropriate and outdated interpretation of the data, a greater problem is the misuse of the placebo response in research, with the declaration that all and everything as a placebo effect: with a misinterpretation of the nature of the placebo the, associated conclusions can be inaccurate...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727672/cardiac-rehabilitation-in-patients-with-left-ventricular-assist-device-a-systematic-review-and-meta-analysis
#18
Toufik Mahfood Haddad, Alok Saurav, Aiman Smer, Muhammad S Azzouz, Abhilash Akinapelli, Mark A Williams, Venkata M Alla
PURPOSE: Exercise-based cardiac rehabilitation (EBCR) has been demonstrated to improve functional capacity in heart failure (HF). However, there are limited data on the effect of EBCR in patients with advanced HF and left ventricular assist devices (LVADs). This meta-analysis sought to evaluate the effects of EBCR on functional capacity in patients with LVAD. METHODS: PubMed, Web of Science, CINAHL, and Cochrane Library databases were searched for randomized studies assessing the impact of EBCR in patients following LVAD implantation compared with standard therapy (ST)...
July 19, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28727567/intuitionistic-multiplicative-group-analytic-hierarchy-process-and-its-use-in-multicriteria-group-decision-making
#19
Zhiming Zhang, Witold Pedrycz
As an extension of multiplicative preference relations (MPRs), intuitionistic MPRs (IMPRs) reflect experts' hesitant quantitative judgments. This paper presents an intuitionistic multiplicative preference information-based group analytic hierarchy process (AHP) and develops an intuitionistic multiplicative group AHP (IMGAHP), which addresses multicriteria group decision-making (MCGDM) that uses IMPRs to capture experts' preference judgments. First, we introduce a consistency index to gauge the consistency of IMPRs and describe the concept of acceptably consistent IMPRs...
July 17, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28727551/inverse-rendering-and-relighting-from-multiple-color-plus-depth-images
#20
Siying Liu, Minh N Do
We propose a novel relighting approach that takes advantage of multiple color plus depth images acquired from a consumer camera. Assuming distant illumination and Lambertian reflectance, we model the reflected light field in terms of spherical harmonic coefficients of the Bi-directional Reflectance Distribution Function (BRDF) and lighting. We make use of the noisy depth information together with color images taken under different illumination conditions to refine surface normals inferred from depth. We first perform refinement on the surface normals using the first order spherical harmonics...
July 18, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
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