keyword
MENU ▼
Read by QxMD icon Read
search

Generalized additive models

keyword
https://www.readbyqxmd.com/read/28092633/unconventional-superconductivity-in-generalized-hubbard-model-role-of-electron-hole-symmetry-breaking-terms
#1
Marcin M Wysokiński, Jan Kaczmarczyk
We investigate the effect of the electron-hole (e-h) symmetry breaking on d-wave superconductivity induced by non-local effects of correlations in the generalized Hubbard model. The symmetry breaking is introduced in a two-fold manner: by the next-to-nearest neighbor hopping of electrons and by the charge-bond interaction-the off-diagonal term of the Coulomb potential. Both terms lead to a pronounced asymmetry of the superconducting order parameter. The next-to-nearest neighbor hopping enhances superconductivity for h-doping, while diminishes it for e-doping...
January 16, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28092418/an-examination-of-the-etiologic-overlap-between-the-genetic-and-environmental-influences-on-insomnia-and-common-psychopathology
#2
Mackenzie J Lind, Sage E Hawn, Christina M Sheerin, Steven H Aggen, Robert M Kirkpatrick, Kenneth S Kendler, Ananda B Amstadter
BACKGROUND: Insomnia is comorbid with internalizing and externalizing psychiatric disorders. However, the extent to which the etiologic influences on insomnia and common psychopathology overlap is unclear. There are limited genetically informed studies of insomnia and internalizing disorders and few studies of overlap exist with externalizing disorders. METHODS: We utilized twin data from the Virginia Adult Twin Studies of Psychiatric and Substance Use Disorders (total n = 7,500)...
January 16, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28091992/analysing-the-correlations-of-long-term-seasonal-water-quality-parameters-suspended-solids-and-total-dissolved-solids-in-a-shallow-reservoir-with-meteorological-factors
#3
Chen Zhang, Wenna Zhang, Yixuan Huang, Xueping Gao
To explore the correlations among water quality parameters, suspended solids (SS) and total dissolved solids (TDS) with meteorological factors in a shallow reservoir in China, the long-term variations of water quality were considered. A non-parametric regression method, generalized additive models (GAM), was used to analyse the correlations among eleven physicochemical and biological parameters as well as three meteorological factors (wind speed, rainfall and solar radiation) which we collected from 2000 to 2011...
January 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28091336/who-are-the-patients-that-default-tuberculosis-treatment-space-matters
#4
C Nunes, R Duarte, A M Veiga, B Taylor
The goals of this article are: (i) to understand how individual characteristics affect the likelihood of patients defaulting their pulmonary tuberculosis (PTB) treatment regimens; (ii) to quantify the predictive capacity of these risk factors; and (iii) to quantify and map spatial variation in the risk of defaulting. We used logistic regression models and generalized additive models with a spatial component to determine the odds of default across continental Portugal. We focused on new PTB cases, diagnosed between 2000 and 2013, and included some individual information (sex, age, residence area, alcohol abuse, intravenous drug use, homelessness, HIV, imprisonment status)...
January 16, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28089900/the-rs4238326-polymorphism-in-aldh1a2-gene-potentially-associated-with-non-post-traumatic-knee-osteoarthritis-susceptibility-a-two-stage-population-based-study
#5
Minjie Chu, Xiaoyue Zhu, Chunli Wang, Jiesheng Rong, Yidan Wang, Shengyu Wang, Baifen Xing, Yuchun Tao, Xun Zhuang, Liying Jiang
OBJECTIVE: A recent genome-wide association study reported significant associations of genetic variants within the ALDH1A2 gene with osteoarthritis (OA) of the hand in European populations. However, these findings have not been well generalized to other joints, or to other populations. METHODS: We performed a two-stage population-based case-control study including 196 non-post traumatic knee OA cases and 442 controls in the first stage and independent 143 non-post traumatic knee OA cases and 238 controls in the second stage in a Chinese population by genotyping 8 tagging polymorphisms in ALDH1A2...
January 12, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28089843/early-chronic-low-level-pb-exposure-alters-global-exploratory-behaviors-but-does-not-impair-spatial-and-object-memory-retrieval-in-an-object-in-place-task-in-pre-adolescent-c57bl-6j-mice
#6
Christina Sobin, Mayra Gisel Flores-Montoya, Juan Manuel Alvarez
The mechanisms by which early chronic low-level lead (Pb) exposure disrupts the developing brain are not yet understood. Rodent models have provided promising results however behavioral tests sensitive to effects at lowest levels of exposure during development are needed. Preadolescent animals (N=52) exposed to low and higher levels of Pb via lactation from birth to PND 28 completed the Object-in-Place Task of visual spatial and visual object memory retrieval (at PND 28). Generalized linear mixed models were used, controlling for sex and litter as a random effect...
January 12, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28089788/cardiovascular-disease-risk-assessment-in-australian-community-pharmacy
#7
Kevin P Mc Namara, Gregory M Peterson, Josie Hughes, Ines Krass, Vincent Versace, Robyn A Clark, James Dunbar
BACKGROUND: Population screening and monitoring of cardiovascular risk is suboptimal in Australian primary care. The role of community pharmacy has increased considerably, but without any policy framework for development. The aim of this study was to explore the nature of community pharmacy-based screening models in Australia, capacity to increase delivery of pharmacy screening, and barriers and enablers to increasing capacity. METHODS: An online survey weblink was emailed to pharmacy managers at every quality-accredited pharmacy in Australia by the Quality Pharmacy Care Program...
November 30, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28089675/burden-of-clostridium-difficile-infection-associated-hospitalization-in-a-cohort-of-middle-aged-and-older-adults
#8
Yingxi Chen, Kathryn Glass, Bette Liu, Rosemary J Korda, Thomas V Riley, Martyn D Kirk
BACKGROUND: Clostridium difficile is the principal cause of infectious diarrhea in hospitalized patients. The aim of this study was to describe and compare length of stay (LOS), costs, and in-hospital deaths for C difficile infection (CDI) and non-CDI hospitalizations, in a cohort of middle-aged and older Australians. METHODS: We used survey data from the 45 and Up Study, linked to hospitalization and death data. We calculated the average LOS and costs per hospitalization, and the proportion of in-hospital deaths for CDI and non-CDI hospitalizations...
January 13, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28089534/in-situ-measurements-of-light-absorbing-impurities-in-snow-of-glacier-on-mt-yulong-and-implications-for-radiative-forcing-estimates
#9
Hewen Niu, Shichang Kang, Xiaofei Shi, Rukumesh Paudyal, Yuanqing He, Gang Li, Shijin Wang, Tao Pu, Xiaoyi Shi
The Tibetan Plateau (TP) or the third polar cryosphere borders geographical hotspots for discharges of black carbon (BC). BC and dust play important roles in climate system and Earth's energy budget, particularly after they are deposited on snow and glacial surfaces. BC and dust are two kinds of main light-absorbing impurities (LAIs) in snow and glaciers. Estimating concentrations and distribution of LAIs in snow and glacier ice in the TP is of great interest because this region is a global hotspot in geophysical research...
January 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28089294/the-american-academy-of-pediatrics-workforce-survey-for-the-section-on-urology-2015
#10
E Shapiro, Christopher S Cooper, S Greenfield
INTRODUCTION: In 2013, the American Academy of Pediatrics (AAP) Division of Workforce and Medical Education Policy assumed the task of organizing the updated AAP Workforce Survey, which was modeled after the Future of Pediatric Education II study. OBJECTIVE: The objective of the present study was to evaluate changes in practice patterns of all pediatric medical and surgical specialists over time, to facilitate advocacy work by the Academy at federal and state levels...
October 8, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28089210/pm10-and-pm2-5-chemical-source-profiles-with-optical-attenuation-and-health-risk-indicators-of-paved-and-unpaved-road-dust-in-bhopal-india
#11
Shilpi Samiksha, Ramya Sunder Raman, Jayant Nirmalkar, Samresh Kumar, Rohit Sirvaiya
Size classified (PM10 and PM2.5) paved and unpaved road dust chemical source profiles, optical attenuation and potential health risk from exposure to these sources are reported in this study. A total of 45 samples from 9 paved road and 6 unpaved road sites located in and around Bhopal were re-suspended in the laboratory, collected onto filter substrates and subjected to a variety of chemical analyses. In general, road dust was enriched (compared to upper continental crustal abundance) in anthropogenic pollutants including Sb, Cu, Zn, Co, and Pb...
January 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28088678/three-dimensional-lumbar-segment-movement-characteristics-during-paediatric-cerebral-palsy-gait
#12
D Kiernan, A Malone, T O'Brien, C K Simms
Kinematic analysis of the trunk during cerebral palsy (CP) gait has been well described. In contrast, movement of the lumbar spine is generally ignored. This is most likely due to the complex nature of the spine. As an alternative to using complex sensor protocols, this study modelled the lumbar region as a single segment and investigated characteristic patterns of movement during CP gait. In addition, the impact of functional level of impairment and the relationship with lower lumbar spinal loading were examined...
January 3, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28086860/nicotiana-attenuata-data-hub-nadh-an-integrative-platform-for-exploring-genomic-transcriptomic-and-metabolomic-data-in-wild-tobacco
#13
Thomas Brockmöller, Zhihao Ling, Dapeng Li, Emmanuel Gaquerel, Ian T Baldwin, Shuqing Xu
BACKGROUND: Nicotiana attenuata (coyote tobacco) is an ecological model for studying plant-environment interactions and plant gene function under real-world conditions. During the last decade, large amounts of genomic, transcriptomic and metabolomic data have been generated with this plant which has provided new insights into how native plants interact with herbivores, pollinators and microbes. However, an integrative and open access platform that allows for the efficient mining of these -omics data remained unavailable until now...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28086846/stochastic-agent-based-modeling-of-tuberculosis-in-canadian-indigenous-communities
#14
Ashleigh R Tuite, Victor Gallant, Elaine Randell, Annie-Claude Bourgeois, Amy L Greer
BACKGROUND: In Canada, active tuberculosis (TB) disease rates remain disproportionately higher among the Indigenous population, especially among the Inuit in the north. We used mathematical modeling to evaluate how interventions might enhance existing TB control efforts in a region of Nunavut. METHODS: We developed a stochastic, agent-based model of TB transmission that captured the unique household and community structure. Evaluated interventions included: (i) rapid treatment of active cases; (ii) rapid contact tracing; (iii) expanded screening programs for latent TB infection (LTBI); and (iv) reduced household density...
January 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28086828/subjective-and-objective-assessment-of-physical-activity-in-multiple-sclerosis-and-their-relation-to-health-related-quality-of-life
#15
Theresa Krüger, Janina R Behrens, Anuschka Grobelny, Karen Otte, Sebastian Mansow-Model, Bastian Kayser, Judith Bellmann-Strobl, Alexander U Brandt, Friedemann Paul, Tanja Schmitz-Hübsch
BACKGROUND: Physical activity (PA) is frequently restricted in people with multiple sclerosis (PwMS) and aiming to enhance PA is considered beneficial in this population. We here aimed to explore two standard methods (subjective plus objective) to assess PA reduction in PwMS and to describe the relation of PA to health-related quality of life (hrQoL). METHODS: PA was objectively measured over a 7-day period in 26 PwMS (EDSS 1.5-6.0) and 30 matched healthy controls (HC) using SenseWear mini® armband (SWAmini) and reported as step count, mean total and activity related energy expenditure (EE) as well as time spent in PA of different intensities...
January 13, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28086786/widespread-introgression-in-deep-sea-hydrothermal-vent-mussels
#16
Corinna Breusing, Robert C Vrijenhoek, Thorsten B H Reusch
BACKGROUND: The analysis of hybrid zones is crucial for gaining a mechanistic understanding of the process of speciation and the maintenance of species boundaries. Hybrid zones have been studied intensively in terrestrial and shallow-water ecosystems, but very little is known about their occurrence in deep-sea environments. Here we used diagnostic, single nucleotide polymorphisms in combination with one mitochondrial gene to re-examine prior hypotheses about a contact zone involving deep-sea hydrothermal vent mussels, Bathymodiolus azoricus and B...
January 13, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28081261/the-role-of-tor1a-polymorphisms-in-dystonia-a-systematic-review-and-meta-analysis
#17
Vasileios Siokas, Efthimios Dardiotis, Evangelia E Tsironi, Georgios Tsivgoulis, Dimitrios Rikos, Maria Sokratous, Stylianos Koutsias, Konstantinos Paterakis, Georgia Deretzi, Georgios M Hadjigeorgiou
IMPORTANCE: A number of genetic loci were found to be associated with dystonia. Quite a few studies have been contacted to examine possible contribution of TOR1A variants to the risk of dystonia, but their results remain conflicting. The aim of the present study was to systematically evaluate the effect of TOR1A gene SNPs on dystonia and its phenotypic subtypes regarding the body distribution. METHODS: We performed a systematic review of Pubmed database to identify all available studies that reported genotype frequencies of TOR1A SNPs in dystonia...
2017: PloS One
https://www.readbyqxmd.com/read/28080042/relative-stability-of-empty-exohedral-fullerenes-%C3%AF-delocalization-versus-strain-and-steric-hindrance
#18
Yang Wang, Sergio Díaz-Tendero, Manuel Alcami, Fernando Martin
Predicting and understanding the relative stability of exohedral fullerenes is an important aspect of fullerene chemistry, since the experimentally formed structures do not generally follow the rules that govern addition reactions and/or the making of pristine fullerenes. First-principles theoretical calculations are of limited applicability due to the large number of possible isomeric forms, e.g., more than 50 billion for C60X8. Here we propose a simple model, exclusively based on topological arguments, that allows one to predict the relative stability of exohedral fullerenes without the need for electronic structure calculations or geometry optimizations...
January 12, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28079919/copper-oxide-nanoparticles-and-copper-sulphate-act-as-antigenotoxic-agents-in-drosophila-melanogaster
#19
Mohamed Alaraby, Alba Hernández, Ricard Marcos
The biological reactivity of metal and metal oxide nanomaterials is attributed to their redox properties, which would explain their pro- or anti-cancer properties depending on exposure circumstances. In this sense, copper oxide nanoparticles (CuONP) have been proposed as a potential anti-tumoral agent. The aim of this study was to assess if CuONP can exert antigenotoxic effects using Drosophila melanogaster as an in vivo model. Genotoxicity was induced by two well-known genotoxic compounds, namely potassium dichromate (PD) and ethyl methanesulfonate (EMS)...
January 12, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28078528/reducing-stress-among-mothers-in-drug-treatment-a-description-of-a-mindfulness-based-parenting-intervention
#20
Vanessa L Short, Meghan Gannon, Wendy Weingarten, Karol Kaltenbach, Marianna LaNoue, Diane J Abatemarco
Background Parenting women with substance use disorder could potentially benefit from interventions designed to decrease stress and improve overall psychosocial health. In this study we assessed whether a mindfulness based parenting (MBP) intervention could be successful in decreasing general and parenting stress in a population of women who are in treatment for substance use disorder and who have infants or young children. Methods MBP participants (N = 59) attended a two-hour session once a week for 12 weeks...
January 11, 2017: Maternal and Child Health Journal
keyword
keyword
90526
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"