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Structural equation modeling

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https://www.readbyqxmd.com/read/29346235/posttraumatic-stress-in-children-after-injury-the-role-of-acute-pain-and-opioid-medication-use
#1
Aimee K Hildenbrand, Nancy Kassam-Adams, Lamia P Barakat, Kristen L Kohser, Jeffrey A Ciesla, Douglas L Delahanty, Joel A Fein, Lindsay B Ragsdale, Meghan L Marsac
OBJECTIVES: After injury, many children experience posttraumatic stress symptoms (PTSS) that negatively impact recovery. Acute pain and PTSS share neurobiological pathways, and acute dosage of morphine has been linked to reduced PTSS in naturalistic studies. However, the complex interactions between pain, morphine and other opioid use, and PTSS have yet to be investigated in robust pediatric samples.This prospective, longitudinal study examined relationships between acute pain, opioid medications, and PTSS after pediatric injury...
January 16, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29345945/chitosan-silica-hybrid-composites-for-removal-of-sulfonated-azo-dyes-from-aqueous-solutions
#2
Magdalena Blachnio, Tetyana M Budnyak, Anna Derylo-Marczewska, Adam W Marczewski, Valentin A Tertykh
In this study, the influence of chitosan immobilization method on properties of final hybrids materials was performed. Chitosan immobilized on the surface of mesoporous (ChS2) and fumed silica (ChS3) by physical adsorption and through sol-gel method (ChS1). It was found that physical immobilization of chitosan allow to obtain hybrid composites (ChS) with homogeneous distribution of polymer on the surface, relatively wide pores and specific surface area about 170 m2/g, pHPZC=5.7 for ChS3 and 356 m2/g, pHPZC=6...
January 18, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29345535/coping-styles-mediate-perfectionism-associations-with-depression-among-undergraduate-students
#3
Abbas Abdollahi, Simin Hosseinian, Gordon J G Asmundson
To better understand depression among adolescent university students, this study was designed to examine coping style as a potential mediator between perfectionism and depression. Participants comprised 510 undergraduate students from Malaysia. Structural Equation Modelling demonstrated that personal standards perfectionism and task-focused coping style were negatively associated with depression, while emotion-focused coping style, avoidant coping style, and evaluative concerns perfectionism were positively associated with depression...
January 18, 2018: Journal of General Psychology
https://www.readbyqxmd.com/read/29345484/journal-article-reporting-standards-for-quantitative-research-in-psychology-the-apa-publications-and-communications-board-task-force-report
#4
Mark Appelbaum, Harris Cooper, Rex B Kline, Evan Mayo-Wilson, Arthur M Nezu, Stephen M Rao
Following a review of extant reporting standards for scientific publication, and reviewing 10 years of experience since publication of the first set of reporting standards by the American Psychological Association (APA; APA Publications and Communications Board Working Group on Journal Article Reporting Standards, 2008), the APA Working Group on Quantitative Research Reporting Standards recommended some modifications to the original standards. Examples of modifications include division of hypotheses, analyses, and conclusions into 3 groupings (primary, secondary, and exploratory) and some changes to the section on meta-analysis...
January 2018: American Psychologist
https://www.readbyqxmd.com/read/29344891/stochastic-and-deterministic-models-for-the-metastatic-emission-process-formalisms-and-crosslinks
#5
Christophe Gomez, Niklas Hartung
Although the detection of metastases radically changes prognosis of and treatment decisions for a cancer patient, clinically undetectable micrometastases hamper a consistent classification into localized or metastatic disease. This chapter discusses mathematical modeling efforts that could help to estimate the metastatic risk in such a situation. We focus on two approaches: (1) a stochastic framework describing metastatic emission events at random times, formalized via Poisson processes, and (2) a deterministic framework describing the micrometastatic state through a size-structured density function in a partial differential equation model...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344765/parent-child-separation-the-relationship-between-separation-and-psychological-adjustment-among-chinese-rural-children
#6
Wenjian Xu, Ni Yan, Gang Chen, Xing Zhang, Tingyong Feng
PURPOSE: The current study aimed to explore the characteristics of psychological adjustment among Chinese left-behind children (LBC) in rural areas, and to examine the association between separation duration from parent/parents (SDP) and children's psychological adjustment and the extent to which personality mediates this hypothesized link. METHODS: We surveyed 534 rural children and adolescents aged 10-17 years at school (440 LBC and 94 non-LBC) in 2013, who were selected for participation using stratified cluster sampling from two counties in Chongqing, China...
January 17, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29344049/a-structural-equation-model-of-self-care-activities-in-diabetic-elderly-patients
#7
Mousa Alavi, Razieh Molavi, Parvin Eslami
Background: Self-care is a valuable strategy to improve health and reduce events of hospitalization and the duration of hospital stay in elderly diabetic patients. This study aimed to examine the model of self-care behaviors in elderly diabetic patients. Materials and Methods: A survey was conducted among 209 diabetic elderly patients who were admitted in three hospitals affiliated with the Isfahan University of Medical Sciences, Iran. Convenience sampling method was used to recruit the participants...
January 2018: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/29342847/how-work-characteristics-are-related-to-european-workers-psychological-well-being-a-comparison-of-two-age-groups
#8
Laura Lorente, Núria Tordera, José María Peiró
This study aimed to analyze the mechanisms through which work characteristics are related to psychological well-being, exploring the mediational role of work meaningfulness and job satisfaction, and investigating differences in the patterns of relationships between two age groups. The sample was composed of 36,896 workers from the 5th European Working Conditions Survey. Structural equation modeling analyses and multiple group analyses were performed. The results revealed a parallel mediational model, in which work meaningfulness and general job satisfaction mediate the relationships between work characteristics and well-being...
January 13, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29342842/investigating-effect-of-service-encounter-value-and-satisfaction-on-word-of-mouth-an-outpatient-service-context
#9
Li-Chun Hsu
This study investigates the relationships among service encounter, service value, patient satisfaction, and word-of-mouth (WOM) intention from the viewpoint of interactive marketing. Data were collected using a questionnaire survey. A total of 372 questionnaires were obtained and 350 of these questionnaires were valid (94.09%), and a structural equation model was used to analyze the data. This study proposed seven hypotheses, and five of the seven hypotheses were supported. Service encounters indirectly affect their patient WOM through service value and satisfaction...
January 13, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29342394/identification-of-linear-and-nonlinear-sensory-processing-circuits-from-spiking-neuron-data
#10
Dorian Florescu, Daniel Coca
Inferring mathematical models of sensory processing systems directly from input-output observations, while making the fewest assumptions about the model equations and the types of measurements available, is still a major issue in computational neuroscience. This letter introduces two new approaches for identifying sensory circuit models consisting of linear and nonlinear filters in series with spiking neuron models, based only on the sampled analog input to the filter and the recorded spike train output of the spiking neuron...
January 17, 2018: Neural Computation
https://www.readbyqxmd.com/read/29342369/added-sugar-consumption-and-chronic-oral-disease-burden-among-adolescents-in-brazil
#11
C D S Carmo, M R C Ribeiro, J X P Teixeira, C M C Alves, M M Franco, A K T C França, B B Benatti, J Cunha-Cruz, C C C Ribeiro
Chronic oral diseases are rarely studied together, especially with an emphasis on their common risk factors. This study examined the association of added sugar consumption on "chronic oral disease burden" among adolescents, with consideration of obesity and systemic inflammation pathways through structural equation modeling. A cross-sectional study was conducted of a complex random sample of adolescent students enrolled at public schools in São Luís, Brazil ( n = 405). The outcome was chronic oral disease burden, a latent variable based on the presence of probing depth ≥4 mm, bleeding on probing, caries, and clinical consequences of untreated caries...
January 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29342218/cross-lagged-structural-equation-models-for-the-relationship-between-health-related-state-and-behaviours-and-body-bullying-in-adolescence-findings-from-longitudinal-study-elana
#12
Viviane S Straatmann, Ylva B Almquist, Aldair J Oliveira, Mikael Rostila, Claudia S Lopes
We investigated the stability and the directionality of being body bullied and a set of four variables- 1) Body Mass Index (BMI), 2) moderate and vigorous physical activity (MVPA), 3) television time (TV) and 4) video game/computer time (VG)-, termed in the present study as 'health-related state and behaviours (HRSB)'-across adolescence. The Adolescent Nutritional Assessment Longitudinal Study (ELANA) is a cohort study conducted among middle school students from two public and four private schools in Rio de Janeiro-Brazil...
2018: PloS One
https://www.readbyqxmd.com/read/29340945/electromagnetic-induction-sensor-for-dynamic-testing-of-coagulation-process
#13
Zhe Wang, Yuanhua Yu, Zhanjiang Yu, Qimeng Chen
With the increasing demand for coagulation POCT for patients in the surgery department or the ICU, rapid coagulation testing techniques and methods have drawn widespread attention from scholars and businessmen. This paper proposes the use of electromagnetic induction sensor probe for detection of dynamic process causing changes in the blood viscosity and density before and after coagulation based on the damped vibration principle, in order to evaluate the coagulation status. Utilizing the dynamic principle, the differential equation of vibration system comprising elastic support and electromagnetic induction device is established through sensor dynamic modeling...
January 16, 2018: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29339318/dietary-patterns-body-mass-index-and-inflammation-pathways-to-depression-and-mental-health-problems-in-adolescents
#14
Wendy H Oddy, Karina L Allen, Georgina S A Trapp, Gina L Ambrosini, Lucinda J Black, Rae-Chi Huang, Peter Rzehak, Kevin C Runions, Feng Pan, Lawrence J Beilin, Trevor A Mori
BACKGROUND: Observational studies suggest that dietary patterns may impact mental health outcomes, although biologically plausible pathways are yet to be tested. We aimed to elucidate the longitudinal relationship between dietary patterns, adiposity, inflammation and mental health including depressive symptoms in a population-based cohort of adolescents. METHODS: Data were provided from 843 adolescents participating in the Western Australian Pregnancy Cohort (Raine) Study at 14 and 17 years (y) of age...
January 12, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29338802/separating-common-from-unique-variance-within-emotional-distress-an-examination-of-reliability-and-relations-to-worry
#15
Andrew J Marshall, Emma K Evanovich, Sarah Jo David, Gregory H Mumma
BACKGROUND: High comorbidity rates among emotional disorders have led researchers to examine transdiagnostic factors that may contribute to shared psychopathology. Bifactor models provide a unique method for examining transdiagnostic variables by modelling the common and unique factors within measures. Previous findings suggest that the bifactor model of the Depression Anxiety and Stress Scale (DASS) may provide a method for examining transdiagnostic factors within emotional disorders...
January 17, 2018: Behavioural and Cognitive Psychotherapy
https://www.readbyqxmd.com/read/29338699/assessing-predictors-of-intention-to-prescribe-sick-leave-among-primary-care-physicians-using-the-theory-of-planned-behaviour
#16
Yogarabindranath Swarna Nantha, Lei Hum Wee, Caryn Mei-Hsien Chan
BACKGROUND: Providing sickness certification is a decision that primary care physicians make on a daily basis. The majority of sickness certification studies in the literature involve a general assessment of physician or patient behaviour without the use of a robust psychological framework to guide research accuracy. To address this deficiency, this study utilized the Theory of Planned Behaviour (TPB) to specifically gauge the intention and other salient predictors related to sickness certification prescribing behaviour amongst primary care physicians...
January 16, 2018: BMC Family Practice
https://www.readbyqxmd.com/read/29338585/the-effects-of-a-nutrition-media-literacy-intervention-on-parents-and-youths-communication-about-food
#17
Erica Weintraub Austin, Bruce W Austin, Brian F French, Marilyn A Cohen
Interventions addressing links between media exposure and obesity risk for school-age youth have not explicitly addressed the role of family communication about media. Youths' influence attempts on parents to purchase advertised foods can create conflict and negatively affect parental food choices. This study tested whether a family-based media literacy curriculum improves parents' media management skills and decreases youths' susceptibility to appealing but unrealistic food marketing. A matched-group pretest/posttest field experiment of parent-youth dyads with control group (N = 100 dyads, youth M = 11 years of age) tested the six-session curriculum...
January 17, 2018: Journal of Health Communication
https://www.readbyqxmd.com/read/29338310/therapy-induced-plasticity-in-chronic-aphasia-is-associated-with-behavioral-improvement-and-time-since-stroke
#18
Priya Santhanam, E Susan Duncan, Steven L Small
Cortical reorganization after stroke is thought to underlie functional improvement. Patterns of reorganization may differ depending on the amount of time since the stroke or the degree of improvement. We investigated these issues in a study of brain connectivity changes with aphasia therapy. Twelve individuals with chronic aphasia participated in a 6-week trial of imitation-based speech therapy. We assessed improvement on a repetition test and analyzed effective connectivity during functional magnetic resonance imaging (fMRI) of a speech observation task before and after therapy...
January 16, 2018: Brain Connectivity
https://www.readbyqxmd.com/read/29337847/hiv-care-continuum-disparities-among-bisexual-black-men-and-the-mediating-effect-of-psychosocial-co-morbidities
#19
M Reuel Friedman, Jordan M Sang, Leigh A Bukowski, Derrick D Matthews, Lisa A Eaton, H Fisher Raymond, Ron Stall
INTRODUCTION: Differences across the HIV care continuum between men who have sex with men and women (MSMW) and men who have sex with men only (MSMO) are emerging in recent literature but have not been comprehensively documented among Black MSM. Although MSMW have lower HIV prevalence than MSMO, they are more likely to be HIV-positive unaware and be virally unsuppressed. Explanatory factors for these differences have not previously been assessed. METHODS: Between 2014-2016, we surveyed sexually active Black MSM ≥18 years old at Black Gay Pride events in six U...
January 15, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29337347/a-latent-state-trait-analysis-of-interoceptive-accuracy
#20
Martin F Wittkamp, Katja Bertsch, Claus Vögele, André Schulz
Interoceptive accuracy (IAc), that is, the ability to accurately perceive one's own bodily signals, is widely assumed to be a trait, although experimental manipulations such as stress may affect IAc. We used structural equation modeling to estimate the reliability of IAc, and the proportions of individual differences in IAc, explained by a trait and occasion-specific effects of situation and person-situation interactions. We assessed IAc in 59 healthy participants (40 women, MAge  = 23.4 years) on three consecutive measurement occasions, approximately 1 week apart, in a rest and poststress condition, using a heartbeat counting and a heartbeat discrimination task...
January 16, 2018: Psychophysiology
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