bluuebunny/crossref_metadata_2025 huggingface dataset:
Robust Hazardous Materials Closed-Loop Supply Chain Network Design with Emergency Response Teams Location
Authors: Mohabbati-Kalejahi Nasrin , Vinel Alexander
Published: February 2021

Hazardous materials (hazmat) storage and transportation pose threats to people’s safety and the environment, which creates a need for governments and local authorities to regulate such shipments. This paper proposes a novel mathematical model for what is termed the hazmat closed-loop supply chain network design problem. The model, which can be viewed as a way to combine several directions previously considered in the literature, includes two echelons in the forward direction (production and distribution centers), three echelons in the backward direction (collection, recovery, and disposal centers), and emergency response team positioning. The two objectives of minimizing the strategic, tactical, and operational costs as well as the risk exposure on road networks are considered in this model. Since the forward flow of hazmat is directly related to the reverse flow, and since hazmat accidents can occur at all stages of the lifecycle (storage, shipment, loading, and unloading, etc.), it is argued that such a unified framework is essential. A robust framework is also presented to hedge the optimization model in case of demand and return uncertainty. The performance of both models is evaluated based on a standard dataset from Albany, NY. Considering the trade-offs between cost and risk, the results demonstrate the design of efficient hazmat closed-loop supply chain networks where the risk exposure can be reduced significantly by employing the proposed models.
Gravity Model of Passenger and Mobility Fleet Origin–Destination Patterns with Partially Observed Service Data
Authors: He Brian Yueshuai , Chow Joseph Y. J.
Published: February 2021

Mobility-as-a-service systems are becoming increasingly important in the context of smart cities, with challenges arising for public agencies to obtain data from private operators. Only limited mobility data are typically provided to city agencies, which are not enough to support their decision-making. This study proposed an entropy-maximizing gravity model to predict origin–destination patterns of both passenger and mobility fleets with only partial operator data. An iterative balancing algorithm was proposed to efficiently reach the entropy maximization state. With different trip length distributions data available, two calibration applications were discussed and validated with a small-scale numerical example. Tests were also conducted to verify the applicability of the proposed model and algorithm to large-scale real data from Chicago transportation network companies. Both shared-ride and single-ride trips were forecast based on the calibrated model, and the prediction of single-ride has a higher level of accuracy. The proposed solution and calibration algorithms are also efficient to handle large scenarios. Additional analyses were conducted for north and south sub-areas of Chicago and revealed different travel patterns in these two sub-areas.
Experimental Study on the Design and Behavior of Concrete Pavement Joint Sealants
Authors: Kim Jinho , Zollinger Dan , Lee Seunghyun
Published: February 2021

Joints in concrete pavement are intended to provide freedom of movement in a concrete slab relative to the volumetric effects. Changes such as this can occur owing to drying shrinkage, temperature changes, and moisture differences that develop within the slab. A key reason to seal the rigid pavement joints is to prevent, or at least reduce, the amount of water from rainfall events infiltrating the pavement structure, which can ultimately contribute to subbase erosion, loss of support, and the build-up of a fine, incompressible material on the face of the joint. The strength of the joint sealant bond and stress of the interface between the sealant and the face of the joint reservoir play important roles in joint sealant failure. Thus, in this research, experimental coupling tests were conducted to investigate the geometric characteristics of the sealant/joint reservoir design. The stress–strain relationship on the interface was investigated according to its geometry, both with regard to the shape factor (SF) and the degree of curvature (DoC). The SF and DoC were evaluated through a tensile test of the joint sealant based on these geometric characteristics. Also discussed are the shape factors (SFs) of the joint sealant currently being recommended, the SF most appropriate for a narrow-width joint, and the surface finish of the joint sealant. Based on this study, the effects of sealant geometries (i.e., SF and DoC) should be considered during design and installation. Also, further research into more realistic SFs for narrow-width joints and self-leveling sealants is recommended.
Risk Factors for Ramp Lesions of the Medial Meniscus: A Systematic Review and Meta-analysis
Authors: Kunze Kyle N. , Wright-Chisem Joshua , Polce Evan M. , DePhillipo Nicholas N. , LaPrade Robert F. , Chahla Jorge
Published: February 2021

Background:

Failure to appropriately identify and repair medial meniscal ramp lesions at the time of anterior cruciate ligament (ACL) reconstruction (ACLR) may result in increased anterior tibial translation and internal rotation, increasing the risk for graft failure. Knowledge of the risk factors leading to the development of ramp lesions may enhance clinicians’ vigilance in specific ACL-deficient populations and subsequently repair of these lesions at the time of ACLR.

Purpose:

To perform a systematic review and meta-analysis of factors tested for associations with ramp lesions and to determine which were significantly associated with the presence of ramp lesions.

Study Design:

Systematic review and meta-analysis; Level of evidence, 4.

Methods:

PubMed, OVID/Medline, and Cochrane databases were queried in April 2020. Data pertaining to study characteristics and reported risk factors for ramp lesions were recorded. DerSimonian-Laird binary random-effects models were constructed to quantitatively evaluate the association between risk factors and ramp lesions by generating effect estimates in the form of odds ratios (ORs) with 95% CIs. Qualitative analysis was performed to describe risk factors that were variably reported.

Results:

The review included 12 studies with 8410 patients. The overall pooled prevalence of ramp lesions was 21.9% (range, 9.0%-41.7%). A total of 45 risk factors were identified, of which 8 were explored quantitatively. There was strong evidence to support that posteromedial tibial edema on magnetic resonance imaging (MRI) (OR, 2.12; 95% CI, 1.27-3.56; P = .004), age <30 years (OR, 2.02; 95% CI, 1.23-3.22; P = .002), and complete ACL tears (OR, 3.0; 95% CI, 1.41-6.20; P = .004) were risk factors for ramp lesions. There was moderate evidence to support that male sex (OR, 1.58; 95% CI, 1.36-1.83; P < .001) and concomitant lateral meniscal tears (OR, 1.54; 95% CI, 1.11-2.13; P = .009) were risk factors for ramp lesions. Chronic ACL injury (≥24 months) demonstrated minimal evidence as a risk factor (OR, 1.41; 95% CI, 1.14-1.74; P = .001). No significant associations were determined between contact injury or revision ACLR and the presence of ramp lesions.

Conclusion:

Significant associations between male sex, age <30 years, posteromedial tibial edema on MRI, concomitant lateral meniscal tears, complete ACL tears, injury chronicity, and the presence of ramp lesions were found. Contact injury and revision ACLR were not significantly associated with the presence of ramp lesions.
Lifestyle in urology: Benign diseases
Authors: Bientinesi Riccardo , Gandi Carlo , Vaccarella Luigi , Sacco Emilio
Published: February 2021

Modifiable lifestyle-related risk factors are the object of increasing attention, with a view to primary and tertiary prevention, to limit the onset and development of diseases.

Also in the urological field there is accumulating evidence of the relationship between urological diseases and lifestyle-related risk factors that can influence their incidence and prognosis. Risk factors such as nutrition, physical activity, sexual habits, tobacco smoking, or alcohol consumption can be modified to limit morbidity and reduce the social impact and the burdensome costs associated with diagnosis and treatment.

This review synthesizes the current clinical evidence available on this topic, trying to satisfy the need for a summary on the relationships between the most important lifestyle factors and the main benign urological diseases, focusing on benign prostatic hyperplasia (BPH), infections urinary tract (UTI), urinary incontinence (UI), stones, erectile dysfunction, and male infertility.
Social representations of psychology: When paradoxes become a strength
Authors: Caillaud Sabine , Haas Valérie , Drozda-Senkowska Ewa
Published: February 2021

This article investigates the understanding by different groups of what psychology is and what psychologists do. We first recall some of the tensions that fuelled the discipline and underpinned its institutionalization in France. Then, drawing on social representations (SR) theory and on the wind-rose model, we explore how SR of psychology and of the psychologist are developed in two different groups and when these groups come together. The first study shows how future psychologists construct, during their studies, a paradoxical understanding of the discipline and of the profession, which echoes some historical tensions: they neither abandon common-sense ideas, nor do they integrate the different psychological dimensions to develop a global approach to the person. The second study, conducted in a context of legal innovation faced by multi-professional teams in charge of assessing disabilities, shows how very different representations of the discipline and of the profession are developed in order to serve local power relationships. Finally, the third study looks at SR constructed through psychological practices by analyzing reports written by psychologists and addressed to these teams. Through their writings, psychologists reconstruct historical tensions, but they also strategically emphasize the different facets of the discipline depending on the issue at play. Thus, when they address these teams with various representations of the discipline and diverse expectations of psychologists, the tensions structuring psychology may become a strength and serve their legitimacy. All in all, the social representations of psychology and of the psychologist appears as a dynamic and interactive process.
Suicide-related Twitter Content in Response to a National Mental Health Awareness Campaign and the Association between the Campaign and Suicide Rates in Ontario
Authors: Côté David , Williams Marissa , Zaheer Rabia , Niederkrotenthaler Thomas , Schaffer Ayal , Sinyor Mark
Published: February 2021

Objective:

Mental health awareness (MHA) campaigns have been shown to be successful in improving mental health literacy, decreasing stigma, and generating public discussion. However, there is a dearth of evidence regarding the effects of these campaigns on behavioral outcomes such as suicides. Therefore, the objective of this article is to characterize the association between the event and suicide in Canada’s most populous province and the content of suicide-related tweets referencing a Canadian MHA campaign (Bell Let’s Talk Day [BLTD]).

Methods:

Suicide counts during the week of BTLD were compared to a control window (2011 to 2016) to test for associations between the BLTD event and suicide. Suicide tweets geolocated to Ontario, posted in 2016 with the BLTD hashtag were coded for specific putatively harmful and protective content.

Results:

There was no associated change in suicide counts. Tweets ( n = 3,763) mainly included content related to general comments about suicide death (68%) and suicide being a problem (42.8%) with little putatively helpful content such as stories of resilience (0.6%) and messages of hope (2.2%).

Conclusions:

In Ontario, this national mental health media campaign was associated with a high volume of suicide-related tweets but not necessarily including content expected to diminish suicide rates. Campaigns like BLTD should strongly consider greater attention to suicide-related messaging that promotes help-seeking and resilience. This may help to further decrease stigmatization, and potentially, reduce suicide rates.
The Potential Impact of Recreational Cannabis Legalization on the Prevalence of Cannabis Use Disorder and Psychotic Disorders: A Retrospective Observational Study
Authors: Vignault Catherine , Massé Amélie , Gouron David , Quintin Jacques , Asli Khashayar Djahanbakhsh , Semaan William
Published: February 2021

Objectives:

The principal objective of our study was to document the short-term impact of the legalization of recreational cannabis on active cannabis use, cannabis use disorder, and various psychotic disorders.

Methods:

We carried out a retrospective observational study of patients who were at least 12 years old and who had visited a psychiatrist in the emergency unit of the Centre hospitalier universitaire de Sherbrooke (CHUS). We included all the consultations of this type over a 5-month period, immediately following the legalization of recreational cannabis in Canada. We then divided our population into an adult (over 18) and teenager group (12 to 17) compared the data to the data from consultations made 2 years earlier, using a generalized linear mixed model.

Results:

We examined consultations in patients over 18 years old in prelegalization ( n = 1,247) and postlegalization ( n = 1,368) groups. We observed a statistically significant increase in the use of cannabis (28.0% to 37.1%; odds ratio [ OR] = 1.81 [1.34 to 2.44], P = 0.00011) as well as an increase in diagnoses of active cannabis use disorder (17.7% to 24.3%; OR = 1.53 [1.13 to 2.08], P = 0.0064). The increase in cannabis use disorder was more prominent among patients between 18 and 24 years old (17.3% to 25.9%; OR = 2.27 [1.17 to 4.40], P = 0.015). We observed no statistically significant difference in terms of psychotic disorder diagnoses (27.4% to 29.2%; OR = 1.17 [0.84 to 1.63], P = 0.35)]. Conversely, we identified a greater proportion of patients who had a personality disorder diagnosis in the postlegalization period (39.6% to 44.9%; OR = 1.35 [1.02 to 1.80], P = 0.038). Examination of pediatric (under 18 years old) consultations revealed no statistically significant differences.

Conclusion:

Although an affirmative conclusion is tentative, the current findings suggest a first link between the legalization of cannabis in Canada and increased diagnoses of cannabis use disorder, as well as cannabis use in general among patients in a university hospital psychiatric emergency department.
Rural–Urban Differences in Suicide Mortality: An Observational Study in Newfoundland and Labrador, Canada: Différences de la Mortalité Par Suicide en Milieu Rural-Urbain: Une Étude Observationnelle à Terre-Neuve et Labrador, Canada
Authors: Reccord Charlene , Power Nicole , Hatfield Keeley , Karaivanov Yordan , Mulay Shree , Wilson Margo , Pollock Nathaniel
Published: February 2021

Background:

Suicide rates are higher in rural compared to urban areas. Although this pattern appears to be driven by higher rates among men, there is limited evidence about the characteristics of rural people who die by suicide in Canada. The objective of this study was to examine the demographics, manner of death, and social and clinical antecedents of people who died by suicide in rural areas compared to urban areas.

Methods:

We conducted an observational study of all suicide deaths that occurred among Newfoundland and Labrador residents between 1997 and 2016 using a linked data set derived from a comprehensive review of provincial medical examiner records. We used t tests and χ2 to assess associations between rural/urban status and variables related to demographics, circumstances, and manner of death, as well as social and medical history. Logistic regression was utilized to assess the independent contribution of any variable found to be significant in univariate analysis.

Results:

Rural people who died by suicide accounted for 54.8% of all deaths over a 20-year period. Overall, 81.6% of people who died were male. Compared to urban, rural people who died by suicide were younger, more likely to use firearms or hanging, and had a higher mean blood alcohol content at the time of death (27.69 vs. 22.95 mmol/L). Rural people were also less likely to have had a known history of a prior suicide attempt, psychiatric disorder, alcohol or substance abuse, or chronic pain.

Discussion:

The demographic and clinical differences between rural and urban people who died by suicide underscore the need for suicide prevention approaches that account for place-based differences. A key challenge for suicide prevention in rural communities is to ensure that interventions are developed and implemented in a manner that fits local contexts.
Validation française d’une échelle de mesure de l’utilisation problématique des jeux vidéo en ligne : l’Internet Gaming Disorder-20
Authors: Plessis Cédric , Altintas Emin , Romo Lucia , Guerrien Alain
Published: February 2021

Introduction:

L’objectif de cette étude est de valider en langue française une échelle de mesure de l’usage problématique des jeux vidéo en ligne ( Internet Gaming Disorder ou IGD): l’Internet Gaming Disorder-20. L’échelle IGD-20 s’inscrit dans le débat sur les déterminants et les facteurs de maintien de l’IGD, trouble introduit dans la section III du DSM-5 et récemment référencé à la classification statistique internationale des maladies et des problèmes connexes sous l’intitulé de « trouble du jeu vidéo ». L’échelle se compose de 20 items séparés en six composantes reposant sur le modèle de l’addiction de Griffiths.

Méthode:

L’étude a porté sur 166 joueurs de jeux vidéo francophones, recrutés sur des forums spécialisés, jouant en moyenne 21,9 heures par semaine. La version française de l’IGD-20 a été soumise à une analyse factorielle confirmatoire par le biais d’une modélisation en équations structurelles (SEM) afin de retrouver les six facteurs de l’échelle originale (saillance, modification de l’humeur, tolérance, manque, conflits et rechute).

Résultat:s

L’analyse factorielle confirmatoire par modélisation en équations structurelles montre un ajustement satisfaisant du modèle (RMSEA = 0,063 [0,049; 0,077], CFI = 0,912, TLI = 0,909).

Discussion:

Une validation en langue française d’un outil tel que l’IGD-20 a un intérêt pour les populations francophones, notamment pour les thérapeutes qui pourront investiguer de façon plus précise le trouble et pour les personnes atteintes qui bénéficieront d’un accompagnement affiné.
A Comparison of Adolescent versus Young Adult Outpatients with First-Presentation Borderline Personality Disorder: Findings from the MOBY Randomized Controlled Trial
Authors: Chanen Andrew M. , Betts Jennifer K. , Jackson Henry , Cotton Sue M. , Gleeson John , Davey Christopher G. , Thompson Katherine , Perera Sharnel , Rayner Victoria , Chong Sinn Yuin , McCutcheon Louise
Published: February 2021

Objective:

The increasing focus on adolescent personality disorder has tended to ignore evidence of the developmental continuity of the period from puberty to young adulthood. This study aims to: (1) describe the characteristics of a sample of young people with borderline personality disorder (BPD) who had no previous history of evidence-based treatment for the disorder and (2) compare their characteristics by participant age group.

Methods:

One hundred and thirty-nine young people (15 to 25 years) with BPD, newly enrolled in the Monitoring Outcomes of BPD in Youth randomized controlled trial, completed semi-structured interview and self-report measures assessing demographic, clinical, and functional characteristics. Younger (aged 15 to 17 years; n = 64) and older (aged 18 to 25 years; n = 75) participants were compared on these same variables using t-tests, chi-square tests, and logistic regression.

Results:

Young outpatients with BPD had extensive and severe psychopathology and were functioning poorly. Adolescents and young adults with BPD showed substantial similarities on 20 key aspects of their presentation. Significant between-groups differences were observed in household makeup, treatment history, antisocial personality disorder, emotion dysregulation, substance use, age of commencement and extent of self-harm, and achievement of age-appropriate educational milestones. Adolescent BPD group membership was predicted by family composition and self-harm, whereas young adult BPD group membership was predicted by not achieving age-appropriate milestones, vocational disengagement, and emotion dysregulation. The final model explained 54% of the variance and correctly classified 80.2% of the sample by age.

Conclusions:

Both adolescents and young adults with early stage BPD present with severe and often similar problems to one another, supporting developmental continuity across this age range. However, there are also meaningful differences in presentation, suggesting that pathways to care might differ by age and/or developmental stage. Detection and intervention for personality disorder should not be delayed until individuals reach 18 years of age.
Analytical modeling and numerical analysis of the effect of mosaic patterns on composite pressure vessels with dome
Authors: Akhtar Muhammad Kaleem , Qureshi Waqar Ahmad , Jamshed Rehan , Raza Mohsin
Published: February 2021

The aim of this work is to provide an analytical tool and numerical analysis for the optimum design of composite pressure vessels with the dome, incorporating triangular mosaic patterns. This article presents the analytical modeling involving kinematic constraints based on geodesic trajectory: the helical angle and dome thickness. The structural analysis is performed using a commercial finite element analysis tool. The results show that this new analytical method gives more accurate dome thickness than cubic spline function and Gramoll and Namiki’s methods. The incorporation of mosaic patterns based on winding kinematics provides more realistic modeling of the real stress distribution and the stress values compared to the vessel without mosaic patterns and vessels with mosaic patterns based on nongeodesic trajectories. The results have been validated and are quite promising with regard to better accuracy and safety.
Educational Robots Improve K-12 Students’ Computational Thinking and STEM Attitudes: Systematic Review
Authors: Zhang Yanjun , Luo Ronghua , Zhu Yijin , Yin Yuan
Published: February 2021

Due to the interdisciplinary nature of robotics, more and more attention has been paid to its effectiveness in the field of education in recent years. This systematic review evaluated existing studies in improving K-12 students’ computational thinking and STEM attitudes. Research articles published between 2010 and 2019 were collated from major databases according to six criteria, and 17 studies were eligible. A meta-analysis was conducted to evaluate the effectiveness of educational robots in terms of standardized mean differences (SMD) or mean differences (MD) of test scores as outcome measures. The overall effect size was medium (SMD = 0.46, 95% CI: 0.23–0.69). Subgroup analysis found that some groups to have better effectiveness. Specifically, the effect of STEM attitudes (SMD = 0.01) was smaller than computational thinking (SMD = 0.48). Educational robots had more significant effect on boys (MD = 0.39) than girls (MD = 0.27). The effect in primary school (SMD = 0.27) was higher than in middle school (SMD = 0.04), and the effect was great on short-term instruction with educational robots (SMD = 0.35). Based on these results, the study makes some recommendations for educators about strengthening the influence of educational robots on STEM attitudes, improving the persistence of their learning effects, and further exploring their application models.
Quantitative Prostate MRI Analysis Following Fluvastatin Therapy for Localized Prostate Cancer - A Pilot Study
Authors: Avery Allan , Sussman Marshall , Longo Joseph , Menezes Ravi J. , Hamilton Robert J. , der Kwast Theodorus H. van , Fleshner Neil E. , Penn Linda Z. , Ghai Sangeet
Published: February 2021

Purpose:

To assess the role of multi-parametric MRI (mpMRI) in assessment of tumor response to fluvastatin administered prior to radical prostatectomy.

Methods:

Men with MRI-visible, clinically significant prostate cancer and due to be treated with radical prostatectomy were prospectively enrolled. mpMRI was performed at baseline and following 6-7 week of neoadjuvant oral statin therapy (40 mg fluvastatin, twice daily), prior to prostatectomy. MRI assessment included tumor size, T2 relaxation time, ADC value, K-trans (volume transfer constant), Kep (reflux constant), and Ve (fractional volume) parameters at the 2 time points. Initial prostate needle biopsy cores, prior to starting oral statin therapy, corresponding to site of tumor on radical prostatectomy specimens were selected for analysis. The effect of fluvastatin on tumor proliferation (marker Ki67) and on tumor cell apoptosis (marker cleaved Caspase-3, CC3) were analyzed and correlated with MRI findings.

Results:

Nine men with paired MRI studies were included in the study. Binary histopathological data was available for 6 of the participants. No significant change in tumor size ( P = 0.898), T2 relaxation time ( P = 0.213), ADC value ( P = 0.455), K-trans ( P = 0.613), Kep ( P = 0.547) or Ve ( P = 0.883) between the time of biopsy and prostatectomy were observed. No significant change in tumor proliferation (%Ki67-positive cells, P = 0.766) was observed by immunohistochemistry analysis. However, there was a significant increase in tumor cell apoptosis (%CC3-positive cells, P = 0.047).

Conclusion:

mpMRI techniques may not be sufficiently sensitive to detect the types (or magnitude) of tumor cell changes observed following 6-7 weeks of fluvastatin therapy for prostate cancer.
Magnetic Resonance Imaging (MRI) and Spectroscopy in Succinic Semialdehyde Dehydrogenase Deficiency
Authors: Afacan Onur , Yang Edward , Lin Alexander P. , Coello Eduardo , DiBacco Melissa L. , Pearl Phillip L. , Warfield Simon K. , Consortium SSADH Deficiency Investigators
Published: February 2021

Succinic semialdehyde dehydrogenase (SSADH) deficiency is an autosomal recessive disorder of γ-aminobutyric acid (GABA) degradation, resulting in elevations of brain GABA and γ-hydroxybutyric acid (GHB). Previous magnetic resonance (MR) spectroscopy studies have shown increased levels of Glx in SSADH deficiency patients. Here in this work, we measure brain GABA in a large cohort of SSADH deficiency patients using advanced MR spectroscopy techniques that allow separation of GABA from overlapping metabolite peaks. We observed significant increases in GABA concentrations in SSADH deficiency patients for all 3 brain regions that were evaluated. Although GABA levels were higher in all 3 regions, each region had different patterns in terms of GABA changes with respect to age. We also report results from structural magnetic resonance imaging (MRI) of the same cohort compared with age-matched controls. We consistently observed signal hyperintensities in globus pallidus and cerebellar dentate nucleus.
Longitudinal Impact of the myPlan App on Health and Safety Among College Women Experiencing Partner Violence
Authors: Glass Nancy E. , Clough Amber , Messing Jill T. , Bloom Tina , Brown Megan Lindsay , Eden Karen B. , Campbell Jacquelyn C. , Gielen Andrea , Laughon Kathryn , Grace Karen Trister , Turner Rachael M. , Alvarez Carmen , Case James , Barnes-Hoyt Jamie , Alhusen Jeanne , Hanson Ginger C. , Perrin Nancy A.
Published: February 2021

The objective of this study was to examine differences in change over time in health and safety outcomes among female college students randomized to myPlan, a tailored safety planning app, or usual web-based safety planning resources. Three hundred forty-six women (175 intervention, 171 control) from 41 colleges/universities in Oregon and Maryland completed surveys at baseline, 6- and 12-months from July 2015 to October 2017. Generalized estimating equations were used to test group differences across time. Both groups improved on four measure of intimate partner violence (IPV; Composite Abuse Scale [CAS], TBI-related IPV, digital abuse, reproductive coercion [RC]) and depression. Reduction in RC and improvement in suicide risk were significantly greater in the myPlan group relative to controls ( p = .019 and p = .46, respectively). Increases in the percent of safety behaviors tried that were helpful significantly reduced CAS scores, indicating a reduction in IPV over time in the myPlan group compared to controls ( p = .006). Findings support the feasibility and importance of technology-based IPV safety planning for college women. myPlan achieved a number of its objectives related to safety planning and decision-making, the use of helpful safety behaviors, mental health, and reductions in some forms of IPV.
Association Between Violent Discipline at Home and Risk of Illness and Injury in Children: Findings From a Cross-sectional Study in Rural Western China
Authors: Huang Yue , Wang Yinping , Chen Chunyi , Gao Yaqing , KC Ashish , Wang Xi , Zou Siyu , Zhou Hong
Published: February 2021

To estimate the prevalence of violent discipline at home against young children, and to explore the potential association between violent discipline at home and multifaceted health risks in children. A community-based cross-sectional survey was conducted in twenty rural counties of weight provinces in western China. The information about child neglect and socio-demographic factors, exposure to different forms of violent discipline at home and four health outcomes was collected by face-to-face interview. Before analysis, the included interviews were weighted by the double-weighted comprehensive weighting. The proportion of children reported by primary caregivers to have experienced different forms of violent discipline by gender were calculated. To adjust the clustering effect of the survey design, two-level univariate and multivariate logistic regression models were constructed to evaluate the potential association between a child’s exposure to violent discipline at home and risk of suffering from diarrhea, fever, cough and injury. A total of 3,682 weighted interviews were finally included in the analysis. The prevalence of any violent discipline, psychological aggression, any physical punishment and severe physical punishment were 76.4%, 57.5%, 68.3% and 14.1%, respectively. In multivariate analysis, after adjusting for clustering, there was still a positive association between a child’s exposure to psychological aggression and risk of diarrhea (adjusted OR: 1.47, 95%CI: 1.14-1.90) and injury (adjusted OR: 1.95, 95%CI: 1.36-2.80); a child’s exposure to any physical punishment and risk of diarrhea (adjusted OR: 1.36, 95%CI: 1.04-1.77), cough (adjusted OR: 1.37, 95%CI: 1.14-1.66), and injury (adjusted OR: 2.05, 95%CI: 1.37-3.06); and a child’s exposure to severe physical punishment and risk of injury (adjusted OR: 2.07, 95%CI: 1.41-3.05). Considering that using violent discipline at home is prevalent in rural western China, and it could threaten young children’s health, effective measures to prevent young children from violent discipline are urgently needed.
Associations Between Self-Reported Sleep Duration and Mortality in Employed Individuals: Systematic Review and Meta-Analysis
Authors: Pienaar Paula R. , Kolbe-Alexander Tracy L. , van Mechelen Willem , Boot Cécile R. L. , Roden Laura C. , Lambert Estelle V. , Rae Dale E.
Published: February 2021

Objective:

Sleeping less or more than the 7-8 h has been associated with mortality in the general population, which encompasses diversity in employment status, age and community settings. Since sleep patterns of employed individuals may differ to those of their unemployed counterparts, the nature of their sleep-mortality relationship may vary. We therefore investigated the association between self-reported sleep duration and all-cause mortality (ACM) or cardiovascular disease mortality (CVDM) in employed individuals.

Data sources:

Based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses, searches between January 1990 and May 2020 were conducted in PubMed, Web of Science and Scopus. Inclusion/exclusion criteria: Included were prospective cohort studies of 18–64-year-old disease-free employed persons with sleep duration measured at baseline, and cause of death recorded prospectively as the outcome. Gray literature, case-control or intervention design studies were excluded.

Data Extraction:

Characteristics of the studies, participants, and study outcomes were extracted. The quality and risk of bias were assessed using the Newcastle-Ottawa Scale.

Data synthesis:

The pooled relative risks (RR) with 95% confidence intervals (CI) were obtained with a random-effects model and results presented as forest plots. Heterogeneity and sensitivity analysis were assessed.

Results:

Shorter sleep duration (≤6 h) was associated with a higher risk for (ACM) (RR: 1.16, 95% CI: 1.11 -1.22) and CVDM (RR: 1.26, 95% CI: 1.12 -1.41) compared to 7-8 h of sleep, with no significant heterogeneity. The association between longer sleep (≥8 h) and ACM (RR: 1.18, 95% CI:1.12 -1.23, P < 0.001) needs to be interpreted cautiously owing to high heterogeneity (I2 = 86.0%, P < 0.001).

Conclusion:

Interventions and education programs targeting sleep health in the workplace may be warranted, based on our findings that employed individuals who report shorter sleep appear to have a higher risk for ACM and CVDM.
Climate Change and Infant Nutrition: Estimates of Greenhouse Gas Emissions From Milk Formula Sold in Selected Asia Pacific Countries
Authors: Dadhich JP , Smith Julie P. , Iellamo Alessandro , Suleiman Adlina
Published: February 2021

Background

There is growing recognition that current food systems and policies are environmentally unsustainable. There is an identified need to integrate sustainability objectives into national food policy and dietary recommendations.

Research Aims

To (1) describe exploratory estimates of greenhouse gas emission factors for all infant and young child milk formula products and (2) estimate national greenhouse gas emission association with commercial milk formulas sold in selected countries in the Asia Pacific region.

Method

We used a secondary data analysis descriptive design incorporating a Life Cycle Assessment (LCA) concepts and methodology to estimate kg CO2 eq. emissions per kg of milk formula, using greenhouse gas emission factors for milk powder, vegetable oils, and sugars identified from a literature review. Proportions of ingredients were calculated using FAO Codex Alimentarius guidance on milk formula products. Estimates were calculated for production and processing of individual ingredients from cradle to factory gate. Annual retail sales data for 2012–2017 was sourced from Euromonitor International for six purposively selected countries; Australia, South Korea, China, Malaysia, India, Philippines.

Results

Annual emissions for milk formula products ranged from 3.95–4.04 kg CO2 eq. Milk formula sold in the six countries in 2012 contributed 2,893,030 tons CO2 eq. to global greenhouse gas emissions. Aggregate emissions were highest for products (e.g., toddler formula), which dominated sales growth. Projected 2017 emissions for milk formula retailed in China alone were 4,219,052 tons CO2 eq.

Conclusions

Policies, programs and investments to shift infant and young child diets towards less manufactured milk formula and more breastfeeding are “Triple Duty Actions” that help improve dietary quality and population health and improve the sustainability of the global food system.
Nature instigated Grey wolf algorithm for parametric optimization during machining (Milling) of polymer nanocomposites
Authors: Kharwar Prakhar Kumar , Verma Rajesh Kumar
Published: February 2021

The new era of engineering society focuses on the utilization of the potential advantage of carbon nanomaterials. The machinability facets of nanocarbon materials are passing through an initial stage. This article emphasizes the machinability evaluation and optimization of Milling performances, namely Surface roughness (Ra), Cutting force (Fc), and Material removal rate (MRR) using a recently developed Grey wolf optimization algorithm (GWOA). The Taguchi theory-based L27 orthogonal array (OA) was employed for the Machining (Milling) of polymer nanocomposites reinforced by Multiwall carbon nanotube (MWCNT). The second-order polynomial equation was intended for the analysis of the model. These mathematical models were used as a fitness function in the GWOA to predict machining performances. The ANOVA outcomes efficiently explore the impact of machine parameters on Milling characteristics. The optimal combination for lower surface roughness value is 1.5 MWCNT wt.%, 1500 rpm of spindle speed, 50 mm/min of feed rate, and 3 mm depth of cut. For lower cutting force, 1.0 wt.%, 1500 rpm, 90 mm/min feed rate and 1 mm depth of cut and the maximize MRR was acquired at 0.5 wt.%, 500 rpm, 150 mm/min feed rate and 3 mm depth of cut. The deviation of the predicted value from the experimental value of Ra, Fc, and MRR are found as 2.5, 6.5 and 5.9%, respectively. The convergence plot of all Milling characteristics suggests the application potential of the GWO algorithm for quality improvement in a manufacturing environment.
Career Competencies and Career Success: On the Roles of Employability Activities and Academic Satisfaction During the School-to-Work Transition
Authors: Presti Alessandro Lo , Capone Vincenza , Aversano Ada , Akkermans Jos
Published: February 2021

Building on the integrative career competencies framework, we examined the indirect association between career competencies, assessed at graduation, and subjective career success (SCS) via employability activities, both assessed six months after graduation, among a sample of 613 Italian graduates. We also examined the moderating role of three facets of academic satisfaction (i.e., vocational choice, educational goals, and occupational prospects). Our findings showed an indirect relation between career competencies and SCS through employability activities. Furthermore, academic satisfaction acted as a moderator. The results of this time-lagged study, that tapped into the actual transition into work process, have implications for (1) school-to-work transitions, providing insights into graduates’ transition into the labor market, (2) employability, focusing on employability activities and providing additional knowledge on their antecedents and outcomes, and (3) career competencies, providing further empirical evidence that career competencies are an important resource that graduates can mobilize to during and after their school-to-work transition.
Ecological momentary assessment to explore fatigue, mood and physical activity levels in people receiving peritoneal dialysis: A study protocol
Authors: Tarca Brett , Jesudason Shilpanjali , Le Leu Richard , Ovenden Michelle , Borlace Monique , Meade Anthony , Bennett Paul N , Wycherley Thomas P , Boyle Terry , Ferrar Katia E
Published: February 2021

Introduction:

Fatigue is a frequent and debilitating symptom for people with end-stage kidney disease (ESKD) receiving dialysis. Ecological momentary assessment (EMA) allows real-time data capture of day-to-day and diurnal variations. EMA has been used to study haemodialysis-related fatigue but not in people receiving peritoneal dialysis who are unique in their physical, environmental and logistical characteristics. The aim of this study is to explore the real-time associations between fatigue and mood (EMA mobile application) and objective physical activity levels (accelerometry) in people with EKSD receiving peritoneal dialysis.

Method:

A 7-day intensive longitudinal study will be conducted. People receiving peritoneal dialysis within South Australia will be invited to participate. Five times throughout the day, participants will be prompted to answer 18 questions relating to fatigue (Visual Analogue Scale to Evaluate Fatigue Severity) and a single question for mood (Visual Analogue Mood Scale). Participants will continuously wear a GENEActiv accelerometer to capture physical activity levels during the 7-day period. At the completion of the data collection, participants will answer questions to evaluate the feasibility and acceptability of using EMA.

Discussion:

This study will be the first to explore the real-time relationships between fatigue, mood and physical activity in people with ESKD receiving peritoneal dialysis. Understanding the fluctuations people experience and the relationships between mood and physical activity and fatigue will inform clinical management and well-being intervention development.
Hours of Paid Work and Volunteering: Evidence From Danish Panel Data
Authors: Qvist Hans-Peter Y.
Published: February 2021

The nature of the relationship between the time people spend on paid work and volunteering remains debated in the social sciences. Time constraint theory suggests a negative relationship because people can allocate only as much time to volunteering as their work responsibilities permit. However, social integration theory suggests a more complex inverse U-shaped relationship because paid work not only limits people’s free time but also plays a key role in their social integration. Departing from these competing theories, this study uses two-wave panel data from Denmark to examine the relationship between hours of paid work and volunteering. In support of time constraint theory, the results suggest that hours of paid work have a significant negative effect on the total number of hours that people spend volunteering, not mainly because paid work hours affect people’s propensity to volunteer but because they affect the number of hours that volunteers contribute.
Shaping the entrepreneurial university: Two experiments and a proposal for innovation in higher education
Authors: Etzkowitz Henry , Dzisah James , Clouser Michael
Published: February 2021

The paper delineates three elements of an entrepreneurial university in practice through innovations demonstrating the academic entrepreneurial transition: the Novum Trivium, Professors of Practice (PoPs) and Link initiatives. The Novum Trivium provides a model for the integration of entrepreneurship into a liberal arts curriculum, so that students learn how to put their knowledge to use and acquire a new language and new cultural understanding to interact globally. The PoPs initiative interlinks firm and university through shared dual roles in each setting, attracting back to the university on half-time basis scientific entrepreneurs from industry to serve as entrepreneurial role models. The Link projects build on ties between a leading entrepreneurial university (Stanford) and an aspiring one (Edinburgh), taking advantage of the fact that each university is already embedded in its region and could be linked to the other’s entrepreneurial culture. The paper demonstrates how industry and higher education are integrated by these initiatives, with the elements of each embedded in the other through shared resources, people and practices.
Towards blended learning: Stakeholders’ perspectives on a project-based integrated curriculum in ICT engineering education
Authors: Mielikäinen Maisa
Published: February 2021

It is increasingly vital, in the current era of ever-expanding remote work and learning, to develop blended methods for engineering education. This research aims to develop a blended, project-based information and communication technology (ICT) education model, conceptualizing a digital ecosystem based on stakeholders’ experiences and expectations. The article describes the first phase of the first cycle of the design-based research, analysis and exploration. Semi-structured interviews and online surveys were used to gather stakeholders’ – i.e. students’ (N = 27), instructors’ (N = 15) and industry representatives’ (N = 3) – thoughts and expectations about the current holistic integrated and project-based curriculum, on which little academic literature exists. The article gathers design principles for a broader intervention through which ICT education is transferred into blended learning. Study participants included third-year ICT engineering education students and instructors at the Lapland University of Applied Sciences, along with local industry representatives. The vast majority of the students described the integrated curriculum and project-based learning approach as a motivating pedagogical model. The participation of industry representatives was perceived as motivational to students. Working-life cooperation with companies should thus be encouraged and further developed in higher education curricula. The students’ positive attitudes towards integrated project-based learning may inspire higher education institutions to apply this framework.
Effect of biomass derived biochar materials on mechanical properties of biochar epoxy composites
Authors: Minugu Om Prakash , Gujjala Raghavendra , Shakuntala Ojha , Manoj Panchal , Chowdary M Somaiah
Published: February 2021

In the current research work an attempt is made to utilize the ecofriendly biochar materials as reinforcements in polymer composites. Biochar materials were developed from Arhar stalks and Bael shells waste biomass by pyrolysis process and studied for different characteristics. The surface morphology, crystalline structure, fixed carbon content and elemental composition of synthesized biochar materials were studied using scanning electron microscope, x-ray diffraction and proximate analysis. The results showed that the biochar (BB) produced using Bael shells are highly amorphous in nature and have high amount of elemental carbon than arhar stalk biochar (AB). Using epoxy as matrix and biochar materials as reinforcement composites were fabricated with three different filler weight fractions i.e., 2%, 4% and 6%. The composites with 4% Bael shell biochar exhibited high tensile strength, and has 183% more strength when compared with neat epoxy. Increasing the filler percentage from 4% to 6% the strength and hardness of composites reduced due to poor interfacial bonding. Morphological studies were performed on fractured surfaces of tensile tested samples by using scanning electron microscope. From thermogravimetric analysis it was found that with the inclusion of biochar materials thermal stability of composites was significantly enhanced. 4% Bael biochar composites (BBC) exhibited higher thermal resistance which left 8% residual mass.
Viscous dissipation and joule heating effects on forced convection power law fluid flow through annular duct
Authors: Ahmed Farhan , Iqbal Mazhar , Akbar Noreen Sher
Published: February 2021

Here we numerically analyse the effects of viscous dissipation and Joule heating on forced convection heat transfer rate of electrically conducting magnetohydrodynamic, ( MHD) power law fluid flow through annular duct. Mathematical model is formulated for constant properties power law fluid with steady, incompressible and laminar fully developed flow assumptions. Heat transfer results are determined by taking constant heat flux with peripheral wall temperature “known as H1 thermal boundary condition” at the solid walls of the channel. It has been observed that the effect of viscous dissipation reduces due to enhance damping magnetic field effect by increasing the value of Hartman number, Ha, especially in the case of shear thickening fluids.