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Geographically weighted

Fátima Sánchez Barreiro, Filipe G Vieira, Michael D Martin, James Haile, M Thomas P Gilbert, Nathan Wales
Population genetic studies of non-model organisms frequently employ reduced representation library (RRL) methodologies, many of which rely on protocols in which genomic DNA is digested by one or more restriction enzymes. However, because high molecular weight DNA is recommended for these protocols, samples with degraded DNA are generally unsuitable for RRL methods. Given that ancient and historic specimens can provide key temporal perspectives to evolutionary questions, we explored how custom-designed RNA probes could enrich for RRL loci (Restriction Enzyme-Associated Loci baits, or REALbaits)...
October 19, 2016: Molecular Ecology Resources
Mingkai Qu, Weidong Li, Chuanrong Zhang, Biao Huang, Yongcun Zhao
To effectively understand the availability of soil nitrogen and assist in soil nitrogen control at the regional scale, it is essential to understand the accurate spatial distribution patterns of the three soil nitrogen parameters [i.e., total nitrogen (TN), available nitrogen (AN) and nitrogen availability ratio (NAR)] and explore the spatially varying influences of major impact factors on soil AN. Land use affects the spatial distributions of soil TN, AN and NAR (i.e., AN/TN). To explore the effects of different land use types and improve mapping accuracy, residual kriging with land use information and ordinary kriging (without land use information) were compared based on the sample data of soil TN and AN in Hanchuan county, China...
October 20, 2016: Environmental Science. Processes & Impacts
Mukoso N Ozieh, Kinfe G Bishu, Rebekah J Walker, Jennifer A Campbell, Leonard E Egede
BACKGROUND: To understand geographic variation in access to care over time in patients with kidney disease. METHODS: We analyzed 4404 (weighted sample of 4,251,129) adults with kidney disease from the United States using the Medical Expenditure Panel Survey over 10 years. Three dependent variables were created to investigate variation in access: usual source of care, overall medical access to care, which took into account usual source of care, ability to get care, and delay in care, and prescription access, which took into account ability to get prescriptions and delay in getting prescriptions...
October 18, 2016: BMC Health Services Research
Alia Alghwiri, Gregory Marchetti
PURPOSE: To investigate the point prevalence of upper back pain (UBP) and lower back pain (LBP) in Jordanian schoolteachers and to estimate the work-related reported disability. METHOD: A cross-sectional survey was used to assess back pain in a convenience sample of teachers in Jordan. Crude and weighted prevalence estimates of self-reported spinal pain and limited productivity were described. Demographic and occupational factors associated with self-reported pain and limited productivity were identified by multinomial/logistic regression...
October 18, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
Osvaldo Marrero, Eric Y Hung, Manfred Hauben
BACKGROUND: Many illnesses demonstrate seasonal and geographic variations. Pharmacovigilance is unique among public health surveillance systems in terms of the clinical diversity of the events under surveillance. Since many pharmacovigilance signal detection methodologies are geared towards looking for increased frequency of spontaneous adverse drug event (ADE) reporting over variable time frames, seasonality of ADEs may have implications for signal detection. OBJECTIVE: The aim of this study was to investigate whether a set of illnesses that might be expected to display seasonality in general, did so when spontaneously reported as ADEs...
September 2016: Drugs—Real World Outcomes
Ebba Malmqvist, Zeyan Liew, Karin Källén, Anna Rignell-Hydbom, Ralf Rittner, Lars Rylander, Beate Ritz
Air pollution has been suggested to affect fetal growth, but more data is needed to assess the timing of exposure effects by using ultrasound measures. It is also important to study effects in low exposure areas to assess eventual thresholds of effects. The MAPSS (Maternal Air Pollution in Southern Sweden) cohort consists of linked registry data for around 48,000 pregnancies from an ultrasound database, birth registry and exposure data based on residential addresses. Measures of air pollution exposure were obtained through dispersion modelling with input data from an emissions database (NOx) with high resolution (100-500m grids)...
October 11, 2016: Environmental Research
Lori A Stolz, Uwe Stolz, J Matthew Fields, Turandot Saul, Michael Secko, Matthew J Flannigan, Johnathan M Sheele, Robert P Rifenburg, Anthony J Weekes, Elaine B Josephson, John Bedolla, Dana M Resop, Jonathan Dela Cruz, Megan Boysen-Osborn, Terrell Caffery, Charlotte Derr, Rimon Bengiamin, Gerardo Chiricolo, Brandon Backlund, Jagdipak Heer, Robert J Hyde, Srikar Adhikari
OBJECTIVES: Emergency ultrasound (EUS) has been recognized as integral to the training and practice of emergency medicine (EM). The Council of Emergency Medicine Residency-Academy of Emergency Ultrasound (CORD-AEUS) consensus document provides guidelines for resident assessment and progression. The Accredited Council for Graduate Medical Education (ACGME) has adopted the EM Milestones for assessment of residents' progress during their residency training which includes demonstration of procedural competency in bedside ultrasound...
October 14, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Sunderajhan Sekar, Ross Crawford, Yin Xiao, Indira Prasadam
Osteoarthritis is a progressive, age-related disease characterized by the degradation of the cartilage, abnormal bone remodelling, and joint pain eventually leading to disability. The occurrence of clinically diagnosed OA and the incidence of disability show geographic variations, which suggests that lifestyle and factors such as diet play a vital role in the formation and progression of OA. Obesity is associated with a state of low-grade inflammation and increased plasma concentrations of fatty acids such as the saturated fatty acids (SFA)...
October 13, 2016: Journal of Cellular Biochemistry
Tiziana Grassi, Antonella De Donno, Francesco Bagordo, Francesca Serio, Prisco Piscitelli, Elisabetta Ceretti, Claudia Zani, Gaia C V Viola, Milena Villarini, Massimo Moretti, Sara Levorato, Annalaura Carducci, Marco Verani, Gabriele Donzelli, Sara Bonetta, Silvia Bonetta, Elisabetta Carraro, Silvia Bonizzoni, Alberto Bonetti, Umberto Gelatti
The prevalence of obesity among Italian children has reached such alarming levels as to require detailed studies of the causes of the phenomenon. A cross-sectional study was carried out in order to assess the weight status of 1164 Italian children aged 6-8 years (the Monitoring Air Pollution Effects on Children for Supporting Public Health Policy (MAPEC_LIFE) cohort) and to identify any associations between selected socio-economic and environmental factors and overweight/obesity. The data were obtained by means of a questionnaire given to parents, and any associations were examined by binomial logistic regression analyses...
October 11, 2016: International Journal of Environmental Research and Public Health
Paula M Frew, Allison Kennedy Fisher, Michelle M Basket, Yunmi Chung, Jay Schamel, Judith L Weiner, Jennifer Mullen, Saad B Omer, Walter A Orenstein
OBJECTIVE: Understanding the current status of parents' vaccine decision making is crucial to inform public policy. We sought to assess changes in vaccine decisions among parents of young children. METHODS: We conducted a web-based national poll of parents of children <7years in 2012 and 2014. Participants reported vaccine decisions for their youngest child. We calculated survey-weighted population estimates of overall immunizations decisions, and delay/refusal rates for specific vaccines...
October 6, 2016: Vaccine
B D Enger, R R White, S C Nickerson, L K Fox
Two meta-analyses were conducted using data from peer-reviewed natural exposure (NE) and experimental challenge (EC) teat dip efficacy trials to identify factors influencing the new intramammary infection (IMI) rate. A NE data set containing 16 studies and an EC data set containing 21 studies were created. New IMI rate was calculated based on the percentage of new quarter infections per month (PNQI/mo) for each observation, in both data sets, and used as the dependent variable for model derivation. A linear, mixed-effects model with a random study effect, weighted by number of quarters eligible for infection, was derived for each data set...
October 5, 2016: Journal of Dairy Science
Kyoko Nagao, Tammy Riegner, Jennifer Padilla, L Ashleigh Greenwood, Jessica Loson, Sarah Zavala, Thierry Morlet
BACKGROUND: Although auditory processing disorder (APD) is a widely recognized impairment, its prevalence and demographic characteristics are not precisely known in the pediatric population. PURPOSE: To examine the demographic characteristics of children diagnosed with APD at a tertiary health-care facility and the prevalence of pediatric APD. RESEARCH DESIGN: A cross-sectional study. STUDY SAMPLE: A total of 243 children (149 boys and 94 girls) who were referred to the Nemours Audiology Clinics in the Delaware Valley for an APD evaluation...
October 2016: Journal of the American Academy of Audiology
Wang Wei, Jin Yuan-Yuan, Yan Ci, Alayi Ahan, Cao Ming-Qin
BACKGROUND: The spatial interplay between socioeconomic factors and tuberculosis (TB) cases contributes to the understanding of regional tuberculosis burdens. Historically, local Poisson Geographically Weighted Regression (GWR) has allowed for the identification of the geographic disparities of TB cases and their relevant socioeconomic determinants, thereby forecasting local regression coefficients for the relations between the incidence of TB and its socioeconomic determinants. Therefore, the aims of this study were to: (1) identify the socioeconomic determinants of geographic disparities of smear positive TB in Xinjiang, China (2) confirm if the incidence of smear positive TB and its associated socioeconomic determinants demonstrate spatial variability (3) compare the performance of two main models: one is Ordinary Least Square Regression (OLS), and the other local GWR model...
October 6, 2016: BMC Public Health
Kirsten K Davison, Selma Gicevic, Alyssa Aftosmes-Tobio, Claudia Ganter, Christine L Simon, Sami Newlan, Jennifer A Manganello
BACKGROUND: The involvement of fathers in caregiving has increased substantially over the past 30 years. Yet in child and adolescent psychopathology, few studies include fathers as research participants and few present results for fathers separate from those for mothers. We test for the first time whether a similar pattern exists in research on parenting and childhood obesity. OBJECTIVES: To conduct a systematic review and quantitative content analysis of observational studies on parenting and childhood obesity to (1) document the inclusion of fathers, relative to mothers, as research participants and (2) examine characteristics of studies that did and did not include fathers...
November 2016: American Journal of Public Health
Pilar Requena, Edmilson Rui, Norma Padilla, Flor E Martínez-Espinosa, Maria Eugenia Castellanos, Camila Bôtto-Menezes, Adriana Malheiro, Myriam Arévalo-Herrera, Swati Kochar, Sanjay K Kochar, Dhanpat K Kochar, Alexandra J Umbers, Maria Ome-Kaius, Regina Wangnapi, Dhiraj Hans, Michela Menegon, Francesca Mateo, Sergi Sanz, Meghna Desai, Alfredo Mayor, Chetan C Chitnis, Azucena Bardají, Ivo Mueller, Stephen Rogerson, Carlo Severini, Carmen Fernández-Becerra, Clara Menéndez, Hernando Del Portillo, Carlota Dobaño
P. vivax infection during pregnancy has been associated with poor outcomes such as anemia, low birth weight and congenital malaria, thus representing an important global health problem. However, no vaccine is currently available for its prevention. Vir genes were the first putative virulent factors associated with P. vivax infections, yet very few studies have examined their potential role as targets of immunity. We investigated the immunogenic properties of five VIR proteins and two long synthetic peptides containing conserved VIR sequences (PvLP1 and PvLP2) in the context of the PregVax cohort study including women from five malaria endemic countries: Brazil, Colombia, Guatemala, India and Papua New Guinea (PNG) at different timepoints during and after pregnancy...
October 2016: PLoS Neglected Tropical Diseases
Wasantha P Jayawardene, David K Lohrmann, Stephanie Dickinson, Mohammad R Torabi
PURPOSE: To estimate school-level obesity burden, as reflected in prevalence of obesity, based on the characteristics of students' socioeconomic and geographic environments. DESIGN: Secondary analysis of cross-sectional data. SETTING: Public schools (N = 504) from 43 of 67 counties in Pennsylvania. PARTICIPANTS: Kindergarten through grade 12 students (N = 255 949). MEASURES: School-level obesity prevalence for the year 2014 was calculated from state-mandated student body mass index (BMI) measurements...
October 5, 2016: American Journal of Health Promotion: AJHP
Chunzhu Wei, Pablo Cabrera-Barona, Thomas Blaschke
This study aims to explore the effect of the neighborhood scale when estimating public services inequality based on the aggregation of social, environmental, and health-related indicators. Inequality analyses were carried out at three neighborhood scales: the original census blocks and two aggregated neighborhood units generated by the spatial "k"luster analysis by the tree edge removal (SKATER) algorithm and the self-organizing map (SOM) algorithm. Then, we combined a set of health-related public services indicators with the geographically weighted principal components analyses (GWPCA) and the principal components analyses (PCA) to measure the public services inequality across all multi-scale neighborhood units...
October 1, 2016: International Journal of Environmental Research and Public Health
Tianhao Zhang, Gang Liu, Zhongmin Zhu, Wei Gong, Yuxi Ji, Yusi Huang
The real-time estimation of ambient particulate matter with diameter no greater than 2.5 μm (PM2.5) is currently quite limited in China. A semi-physical geographically weighted regression (GWR) model was adopted to estimate PM2.5 mass concentrations at national scale using the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth product fused by the Dark Target (DT) and Deep Blue (DB) algorithms, combined with meteorological parameters. The fitting results could explain over 80% of the variability in the corresponding PM2...
September 30, 2016: International Journal of Environmental Research and Public Health
Sebastián Apesteguía, Juan D Daza, Tiago R Simões, Jean Claude Rage
The fossil record shows that iguanian lizards were widely distributed during the Late Cretaceous. However, the biogeographic history and early evolution of one of its most diverse and peculiar clades (acrodontans) remain poorly known. Here, we present the first Mesozoic acrodontan from Africa, which also represents the oldest iguanian lizard from that continent. The new taxon comes from the Kem Kem Beds in Morocco (Cenomanian, Late Cretaceous) and is based on a partial lower jaw. The new taxon presents a number of features that are found only among acrodontan lizards and shares greatest similarities with uromastycines, specifically...
September 2016: Royal Society Open Science
A J Spittle, J Olsen, A Kwong, L W Doyle, P B Marschik, C Einspieler, Jly Cheong
INTRODUCTION: Infants born extremely preterm (EP; <28 weeks' gestation) and/or with extremely low birth weight (ELBW; <1000 g birth weight) are at increased risk for adverse neurodevelopmental outcomes. However, it is challenging to predict those EP/ELBW infants destined to have long-term neurodevelopmental impairments in order to target early intervention to those in most need. The General Movements Assessment (GMA) in early infancy has high predictive validity for neurodevelopmental outcomes in preterm infants...
October 3, 2016: BMJ Open
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