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GLM or (general linear model)

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https://www.readbyqxmd.com/read/28719741/macroscopic-strain-induced-transition-from-quasi-infinite-gold-nanoparticle-chains-to-defined-plasmonic-oligomers
#1
Anja Maria Steiner, Martin Mayer, Maximilian Seuss, Svetoslav Nikolov, Kenneth D Harris, Alexander Alexeev, Christian Kuttner, Tobias A F Koenig, Andreas Fery
We investigate the formation of chains of few plasmonic nanoparticles - so called plasmonic oligomers - by strain induced fragmentation of linear particle assemblies. Detailed investigations of the fragmentation process are conducted by in-situ atomic force microscopy (AFM) and UV-vis-NIR spectroscopy. Based on these experimental results and mechanical simulations computed by the lattice spring model (LSM), we propose a formation mechanism which explains the observed decrease of chain polydispersity upon increasing strain and provides experimental guidelines for tailoring chain length distribution...
July 18, 2017: ACS Nano
https://www.readbyqxmd.com/read/28719499/a-retrospective-cohort-study-of-the-incidence-healthcare-resource-utilization-and-costs-of-icd-9-diagnosed-influenza-and-related-complications-in-us-children
#2
Philip O Buck, David M Smith, Rahul Shenolikar, Debra E Irwin
BACKGROUND: There is a paucity of data on the clinical and economic impact of seasonal influenza in children. This study estimated the incidence of diagnosed influenza and related complications, and associated healthcare resource utilization (HRU) and costs in US children. METHODS: Children ≥6 months and <18 years old diagnosed with influenza using ICD-9 codes and enrolled in a health plan during at least one influenza season between 2010-2014 were matched to similar patients without diagnosed influenza (GSK study identifier: HO-15-15728)...
July 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28719497/serologic-responses-in-childhood-pulmonary-tuberculosis
#3
Bareng A S Nonyane, Mark P Nicol, Nicholas J Andreas, Stefanie Rimmele, Nicole Schneiderhan-Marra, Lesley J Workman, Mark D Perkins, Thomas Joos, Tobias Broger, Jerrold J Ellner, David Alland, Beate Kampmann, Susan E Dorman, Heather J Zar
BACKGROUND: Identification of the Mycobacterium tuberculosis immunoproteome and antigens associated with serologic responses in adults has renewed interest in developing a serologic test for childhood tuberculosis (TB). We investigated IgG antibody responses against M. tuberculosis antigens in children with well-characterized TB. METHODS: We studied archived sera obtained from hospitalized children with suspected pulmonary TB, and classified as having confirmed TB (culture-confirmed), unlikely TB (clinical improvement without TB treatment), or unconfirmed TB (all others)...
July 15, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28719081/drought-induced-mortality-patterns-and-rapid-biomass-recovery-in-a-terra-firme-forest-in-the-colombian-amazon
#4
Daniel Zuleta, Alvaro Duque, Dairon Cardenas, Helene C Muller-Landau, Stuart Davies
Extreme climatic events affecting the Amazon region are expected to become more frequent under ongoing climate change. In this study, we assessed the responses to the 2010 drought of over 14,000 trees ≥ 10 cm dbh in a 25 ha lowland forest plot in the Colombian Amazon and how these responses varied among topographically defined habitats, with tree size, and with species wood density. Tree mortality was significantly higher during the 2010-2013 period immediately after the drought than in 2007-2010. The post-drought increase in mortality was stronger for trees located in valleys (+243%) than for those located on slopes (+67%) and ridges (+57%)...
July 18, 2017: Ecology
https://www.readbyqxmd.com/read/28719005/quantitative-structure-reactivity-relationships-of-hydroxyl-radical-rate-constants-for-linear-and-cyclic-volatile-methylsiloxanes
#5
Jaeshin Kim, Shihe Xu
The accurate understanding of the fate of volatile methylsiloxanes (VMS) in air is crucial in determining persistence and concentrations in the environment. Although oxidation by atmospheric hydroxyl radicals (oOH) is considered as a major degradation mechanism for airborne VMS, the existing bimolecular rate constants with •OH measured and modeled for any given VMS compound varied greatly, depending on the approaches used to generate the data. The objectives of this study were to measure •OH reaction rate constants for four cyclic and four linear VMS based on a relative rate method using a newly designed atmospheric chamber and to establish structure-reactivity relationships for the kinetics...
July 18, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28718661/anxiety-and-self-care-behaviour-in-patients-with-chronic-systolic-heart-failure-a-multivariate-model
#6
Thomas Müller-Tasch, Bernd Löwe, Nicole Lossnitzer, Lutz Frankenstein, Tobias Täger, Markus Haass, Hugo Katus, Jobst-Hendrik Schultz, Wolfgang Herzog
BACKGROUND: While comprehensive evidence exists regarding negative effects of depression on self-care behaviours in patients with chronic heart failure (CHF), the relation between anxiety and self-care behaviours in patients with CHF is not clear. The aim of this study was to analyse the interactions between anxiety, depression and self-care behaviours in patients with CHF. METHODS: The self-care behaviour of CHF outpatients was measured using the European Heart Failure Self-care Behaviour Scale (EHFScBS)...
July 1, 2017: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28718346/effect-of-desvenlafaxine-50-mg-and-100-mg-on-energy-and-lassitude-in-patients-with-major-depressive-disorder-a-pooled-analysis
#7
Raymond W Lam, Dalia B Wajsbrot, Ellen Meier, Elizabeth Pappadopulos, Joan A Mackell, Matthieu Boucher
Nine randomized, double-blind, placebo-controlled studies of major depressive disorder were pooled to evaluate the effects of desvenlafaxine 50- and 100-mg/d on energy and lassitude in adults with major depressive disorder ( n=4279). Changes from baseline to endpoint in 17-item Hamilton Rating Scale for Depression (HAM-D17) Work and Activities, Retardation, and Somatic Symptoms General items, HAM-D17 psychomotor retardation factor, and Montgomery-Åsberg Depression Rating Scale Lassitude item were analyzed with a mixed model for repeated measures analysis of variance...
July 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28717260/faculty-motivation-to-mentor-students-through-undergraduate-research-programs-a-study-of-enabling-and-constraining-factors
#8
Danielle X Morales, Sara E Grineski, Timothy W Collins
Undergraduate research experiences are a "high impact" educational practice that confer benefits to students. However, little attention has been paid to understanding faculty motivation to mentor undergraduate students through research training programs, even as the number of programs has grown, requiring increasing numbers of faculty mentors. To address this, we introduce a conceptual model for understanding faculty motivation to mentor and test it by using empirical data to identify factors that enable and constrain faculty engagement in an undergraduate research program...
August 2017: Research in Higher Education
https://www.readbyqxmd.com/read/28715797/neurodevelopment-at-3-years-in-neonates-born-by-vaginal-delivery-versus-cesarean-section-at-26-weeks-of-gestation-retrospective-analysis-of-a-nationwide-registry-in-japan
#9
Takeshi Kimura, Masato Takeuchi, Takumi Imai, Shiro Tanaka, Koji Kawakami
BACKGROUND: A high proportion of extremely preterm (EPT) infants are born by cesarean section (CS). However, whether the mode of delivery is related to long-term neurodevelopment in these infants is unclear. OBJECTIVES: This study aimed to determine whether the mode of delivery is associated with mortality and long-term outcomes in EPT infants. METHODS: We analyzed data of the Neonatal Research Network in Japan (NRNJ), a population-based, nationwide registry...
July 14, 2017: Neonatology
https://www.readbyqxmd.com/read/28715728/mobile-phone-use-during-driving-effects-on-speed-and-effectiveness-of-driver-compensatory-behaviour
#10
Pushpa Choudhary, Nagendra R Velaga
This study analysed and modelled the effects of conversation and texting (each with two difficulty levels) on driving performance of Indian drivers in terms of their mean speed and accident avoiding abilities; and further explored the relationship between speed reduction strategy of the drivers and their corresponding accident frequency. 100 drivers of three different age groups (young, mid-age and old-age) participated in the simulator study. Two sudden events of Indian context: unexpected crossing of pedestrians and joining of parked vehicles from road side, were simulated for estimating the accident probabilities...
July 14, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28715209/comparison-of-the-predictive-performance-and-interpretability-of-random-forest-and-linear-models-on-benchmark-datasets
#11
Richard Liam Marchese Robinson, Anna Palczewska, Jan Palczewski, Nathan Kidley
The ability to interpret the predictions made by quantitative structure activity relationships (QSARs) offers a number of advantages. Whilst QSARs built using non-linear modelling approaches, such as the popular Random Forest algorithm, might sometimes be more predictive than those built using linear modelling approaches, their predictions have been perceived as difficult to interpret. However, a growing number of approaches have been proposed for interpreting non-linear QSAR models in general and Random Forest in particular...
July 17, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28713888/a-road-map-for-multi-way-calibration-models
#12
REVIEW
Graciela M Escandar, Alejandro C Olivieri
A large number of experimental applications of multi-way calibration are known, and a variety of chemometric models are available for the processing of multi-way data. While the main focus has been directed towards three-way data, due to the availability of various instrumental matrix measurements, a growing number of reports are being produced on order signals of increasing complexity. The purpose of this review is to present a general scheme for selecting the appropriate data processing model, according to the properties exhibited by the multi-way data...
July 17, 2017: Analyst
https://www.readbyqxmd.com/read/28713869/association-of-anisocytosis-with-markers-of-immune-activation-and-exhaustion-in-treated-hiv
#13
Sadeer G Al-Kindi, David A Zidar, Grace A McComsey, Chris T Longenecker
BACKGROUND: Treated HIV infection is associated with heightened inflammation which can contribute to increased risk of cardiovascular disease (CVD). We have previously shown that anisocytosis, as measured by red cell distribution width (RDW), is independently associated with prevalent CVD in people living with HIV (PLHIV). In this study, we sought to identify immune correlates of RDW in PLHIV receiving antiretroviral therapy. METHODS: We performed a cross-sectional and longitudinal analysis of 147 virally-suppressed PLHIV, who had LDL < 130 mg/dL and evidence of heightened inflammation, in a randomized trial of statin therapy...
2017: Pathogens & Immunity
https://www.readbyqxmd.com/read/28712980/association-of-selective-serotonin-reuptake-inhibitors-and-bone-mineral-density-in-elderly-women
#14
Smita Saraykar, Vineeth John, Bo Cao, Matthew Hnatow, Catherine G Ambrose, Nahid Rianon
Depression and osteoporosis are 2 common comorbidities in geriatric patients. There are concerns about the deleterious effects of selective serotonin reuptake inhibitor (SSRI) antidepressant use on bone mineral density (BMD). We examined the association between SSRI use and BMD in elderly women (≥65 yr) referred to a geriatric osteoporosis clinic for bone health evaluation. Cross-sectional analyses using the general linear model were performed on data collected retrospectively from August 2010 to April 2015...
July 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28712622/pharmaceutical-pricing-in-germany-how-is-value-determined-within-the-scope-of-amnog
#15
Victoria Desirée Lauenroth, Tom Stargardt
OBJECTIVES: To analyze how value is determined within the scope of the German Pharmaceutical Restructuring Act, which came into effect in 2011. METHODS: Using data from all pharmaceuticals that had undergone assessment, appraisal, and price negotiations in Germany before June 30, 2016, we applied generalized linear model regression to analyze the impact of added benefit on the difference between negotiated prices and the prices of comparators. Data were extracted from the Federal Joint Committee's appraisals and price databases...
July 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28712353/cost-effectiveness-of-a-ptsd-intervention-tailored-for-individuals-with-severe-mental-illness
#16
Eric P Slade, Jennifer D Gottlieb, Weili Lu, Philip T Yanos, Stanley Rosenberg, Steven M Silverstein, Shula K Minsky, Kim T Mueser
OBJECTIVE: This study examined the cost-effectiveness of a cognitive-behavioral therapy (CBT) intervention for posttraumatic stress disorder (PTSD) that is tailored for adults with a co-occurring severe mental illness. METHODS: Data were from a randomized trial involving 183 adult clients of two outpatient clinics and three partial hospitalization programs. All had a severe mental illness diagnosis (major mood disorder, schizophrenia, or schizoaffective disorder) and severe PTSD...
July 17, 2017: Psychiatric Services: a Journal of the American Psychiatric Association
https://www.readbyqxmd.com/read/28712139/warming-drives-a-front-of-white-spruce-establishment-near-western-treeline-alaska
#17
Amy E Miller, Tammy L Wilson, Rosemary L Sherriff, James Walton
Regional warming has led to increased productivity near the boreal forest margin in Alaska. To date, the effects of warming on seedling recruitment have received little attention, in spite of forecasted forest expansion. Here, we used stand structure and environmental data from ninety-five white spruce (Picea glauca) plots sampled across a longitudinal gradient in southwest Alaska to explore factors influencing spruce establishment and recruitment near western treeline. We used total counts of live seedlings, saplings, and trees, representing five life stages, to evaluate whether geospatial, climate, and measured plot covariates predicted abundance, using current abundance distributions as a surrogate for climate conditions in the past...
July 16, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28711336/short-term-air-pollution-exposure-and-cardiovascular-events-a-10-year-study-in-the-urban-area-of-como-italy
#18
Simone Vidale, Marco Arnaboldi, Vittorio Bosio, Giovanni Corrado, Mario Guidotti, Roberto Sterzi, Carlo Campana
BACKGROUND: In the last years several studies have investigated the effects of some air pollutants on cardiovascular diseases (CVD), but the results are not conclusive. Aim of this study was to investigate the association between short-term exposure to ambient air pollution and CVD events in a long-term observational period. METHODS: All CVD events (myocardial infarction - MI and ischemic stroke - IS) which occurred in residents of Como between January 2005 and December 2014 were included...
June 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28710247/congenital-diaphragmatic-hernia-and-growth-to-12-years
#19
Lisette Leeuwen, Daphne S Mous, Joost van Rosmalen, Joanne F Olieman, Laura Andriessen, Saskia J Gischler, Koen F M Joosten, Rene M H Wijnen, Dick Tibboel, Hanneke IJsselstijn, Marjolein Spoel
OBJECTIVES: Growth problems are reported in patients with congenital diaphragmatic hernia during the first years of life. However, it is unknown if poor growth persists during childhood. We therefore evaluated growth of patients longitudinally until 12 years of age. METHODS: This prospective study included 172 patients (43 treated with extracorporeal membrane oxygenation [ECMO]) born from 1999 to 2014. Z scores of height-for-age (HFA), weight-for-height, and distance-to-target height were calculated at 6 months of age and at 1, 2, 5, 8, and 12 years of age...
July 14, 2017: Pediatrics
https://www.readbyqxmd.com/read/28709943/propagation-and-control-of-gene-expression-noise-with-non-linear-translation-kinetics
#20
J David Van Dyken
Gene expression is a stochastic process involving small numbers of molecules. As a consequence, cells in a clonal population vary randomly and sometimes substantially from one another in the concentration of mRNA and protein species, a phenomenon known as gene expression noise. Previous theoretical models of gene expression noise assumed that translation is first-order (linear) in mRNA concentration, leading to unfiltered propagation of mRNA noise to the protein level. Here I consider the biological ramifications of relaxing this assumption...
July 11, 2017: Journal of Theoretical Biology
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