bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Implementing an Ergonomic Work Schedule on Heart Rate Variability in Shift‐working Nurses
Authors: Järvelin‐Pasanen Susanna , Ropponen Annina , Tarvainen Mika , Paukkonen Marja , Hakola Tarja , Puttonen Sampsa , Karjalainen Pasi Antero , Lindholm Harri , Louhevaara Veikko , Pohjonen Tiina 
Published: May 2013

Effects of Implementing an Ergonomic Work Schedule on Heart Rate Variability in Shift working Nurses: Susanna JÄRVELIN‐PASANEN, et al. Ergonomics, Institute of Public Health and Clinical Nutrition, School of Medicine, Faculty of Health Sciences, University of Eastern Finland—ObjectivesThe aim of this study was to compare the psychophysiological strain related to a conventional shift schedule and new ergonomically improved two‐ and three‐shift schedules using heart rate variability (HRV) analysis. The specific aim was to determine whether the introduced ergonomic shift arrangement had any positive effects on the psychophysiological strain such as increased HRV or decrease in the sympathovagal balance of the autonomic nervous system (ANS).MethodsQuestionnaire data and 24‐hour HRV recordings were gathered from 48 female shift‐working nurses once while working the conventional shift schedule (baseline) and again after one year working an ergonomic shift schedule during the morning shift.ResultsComparisons between conventional and ergonomic shift schedules (baseline and follow‐up, respectively) revealed significant differences in frequency‐domain parameters. Implementing an ergonomic shift schedule resulted in decreased normalized low frequency (LF) power, increased normalized high frequency (HF) power, and decreased LF/HF ratio at the beginning of the shift. Furthermore, at baseline, mean RR interval, root mean square of successive RR interval differences (RMSSD) and normalized HF power were increased at the end of the shift compared with the values at the beginning of the morning shift. In contrast, at the follow‐up, LF power was increased between the end and beginning of the morning shift.ConclusionsThe psychophysiological strain measured by HRV analysis was lower at the beginning of the work shift for the ergonomic shift schedules compared with the conventional schedule. This indicates that an ergonomic shift schedule may have a positive effect on the ANS recovery occurring between successive work shifts.
A Cross‐sectional Study of the Association between Working Hours and Sleep Duration among the Japanese Working Population
Authors: Ohtsu Tadahiro , Kaneita Yoshitaka , Aritake Sayaka , Mishima Kazuo , Uchiyama Makoto , Akashiba Tsuneto , Uchimura Naohisa , Nakaji Shigeyuki , Munezawa Takeshi , Kokaze Akatsuki , Ohida Takashi 
Published: May 2013

A Cross‐sectional Study of the Association between Working Hours and Sleep Duration among the Japanese Working Population: Tadahiro OHTSU, et al. Department of Public Health, Showa University School of Medicine, Japan—ObjectivesThis study aimed to clarify the association between long working hours and short sleep duration among Japanese workers.MethodsWe selected 4,000 households from across Japan by stratified random sampling and conducted an interview survey of a total of 662 participants (372 men; 290 women) in November 2009. Logistic regression analyses were performed using “sleep duration <6 hours per day” as a dependent variable to examine the association between working hours/overtime hours and short sleep duration.ResultsWhen male participants who worked for ≥7 but <9 hours per day were used as a reference, the odds ratio (OR) for short sleep duration in those who worked for ≥11 hours was 8.62 (95% confidence interval [CI]: 3.94−18.86). With regard to overtime hours among men, when participants without overtime were used as a reference, the OR for those whose period of overtime was ≥3 hours but <4 hours was 3.59 (95% CI: 1.42−9.08). For both men and women, those with long weekday working hours tended to have a short sleep duration during weekdays and holidays.ConclusionsIt is essential to avoid working long hours in order to prevent short sleep duration.
Multidrug-Resistant Tuberculosis Among Patients in Baja California, Mexico, and Hispanic Patients in California
Authors: Bojorquez Ietza , Barnes Richard F. W. , Flood Jennifer , López-Gatell Hugo , Garfein Richard S. , Bäcker Claudia E. , Alpuche Celia , Vinetz Joseph M. , Catanzaro Antonino , Kato-Maeda Midori , Rodwell Timothy C. 
Published: May 2013

Objectives. We sought to compare prevalence and determinants of multidrug-resistant tuberculosis (MDR-TB) between tuberculosis patients in Baja California, Mexico, and Hispanic patients in California. Methods. Using data from Mexico’s National TB Drug Resistance Survey (2008–2009) and California Department of Public Health TB case registry (2004–2009), we assessed differences in MDR-TB prevalence comparing (1) Mexicans in Baja California, (2) Mexico-born Hispanics in California, (3) US-born Hispanics in California, and (4) California Hispanics born elsewhere. Results. MDR-TB prevalence was 2.1% in Baja California patients, 1.6% in Mexico-born California patients, 0.4% in US-born California patients, and 2.7% in Hispanic California patients born elsewhere. In multivariate analysis, previous antituberculosis treatment was associated with MDR-TB (odds ratio [OR] = 6.57; 95% confidence interval [CI] = 3.34, 12.96); Mexico-born TB patients in California (OR = 5.08; 95% CI = 1.19, 21.75) and those born elsewhere (OR = 7.69; 95% CI = 1.71, 34.67) had greater odds of MDR-TB compared with US-born patients (reference category). Conclusions. Hispanic patients born outside the US or Mexico were more likely to have MDR-TB than were those born within these countries. Possible explanations include different levels of exposure to resistant strains and inadequate treatment.
Early Life Exposure to the 1918 Influenza Pandemic and Old-Age Mortality by Cause of Death
Authors: Myrskylä Mikko , Mehta Neil K. , Chang Virginia W. 
Published: May 2013

Objectives. We sought to analyze how early exposure to the 1918 influenza pandemic is associated with old-age mortality by cause of death.Methods. We analyzed the National Health Interview Survey (n = 81 571; follow-up 1989–2006; 43 808 deaths) and used year and quarter of birth to assess timing of pandemic exposure. We used Cox proportional and Fine-Gray competing hazard models for all-cause and cause-specific mortality, respectively.Results. Cohorts born during pandemic peaks had excess all-cause mortality attributed to increased noncancer mortality. We found evidence for a trade-off between noncancer and cancer causes: cohorts with high noncancer mortality had low cancer mortality, and vice versa.Conclusions. Early disease exposure increases old-age mortality through noncancer causes, which include respiratory and cardiovascular diseases, and may trigger a trade-off in the risk of cancer and noncancer causes. Potential mechanisms include inflammation or apoptosis. The findings contribute to our understanding of the causes of death behind the early disease exposure–later mortality association. The cancer–noncancer trade-off is potentially important for understanding the mechanisms behind these associations.
Impact of Welfare Reform on Mortality: An Evaluation of the Connecticut Jobs First Program, A Randomized Controlled Trial
Authors: Wilde Elizabeth T. , Rosen Zohn , Couch Kenneth , Muennig Peter A. 
Published: May 2013

Objectives. We examined whether Jobs First, a multicenter randomized trial of a welfare reform program conducted in Connecticut, demonstrated increases in employment, income, and health insurance relative to traditional welfare (Aid to Families with Dependent Children). We also investigated if higher earnings and employment improved mortality of the participants. Methods. We revisited the Jobs First randomized trial, successfully linking 4612 participant identifiers to 15 years of prospective mortality follow-up data through 2010, producing 240 deaths. The analysis was powered to detect a 20% change in mortality hazards. Results. Significant employment and income benefits were realized among Jobs First recipients relative to traditional welfare recipients, particularly for the most disadvantaged groups. However, although none of these reached statistical significance, all participants in Jobs First (overall, across centers, and all subgroups) experienced higher mortality hazards than traditional welfare recipients. Conclusions. Increases in income and employment produced by Jobs First relative to traditional welfare improved socioeconomic status but did not improve survival.
Installation of a Bridge Barrier as a Suicide Prevention Strategy in Montréal, Québec, Canada
Authors: Perron Stéphane , Burrows Stephanie , Fournier Michel , Perron Paul-André , Ouellet Frédéric 
Published: May 2013

Objectives. We investigated whether the installation of a suicide prevention barrier on Jacques-Cartier Bridge led to displacement of suicides to other jumping sites on Montréal Island and Montérégie, Québec, the 2 regions it connects. Methods. Suicides on Montréal Island and Montérégie were extracted from chief coroners’ records. We used Poisson regression to assess changes in annual suicide rates by jumping from Jacques-Cartier Bridge and from other bridges and other sites and by other methods before (1990–June 2004) and after (2005–2009) installation of the barrier. Results. Suicide rates by jumping from Jacques-Cartier Bridge decreased after installation of the barrier (incidence rate ratio [IRR] = 0.24; 95% confidence interval [CI] = 0.13, 0.43), which persisted when all bridges (IRR = 0.39; 95% CI = 0.27, 0.55) and all jumping sites (IRR = 0.66; 95% CI = 0.54, 0.80) in the regions were considered. Conclusions. Little or no displacement to other jumping sites may occur after installation of a barrier at an iconic site such as Jacques-Cartier Bridge. A barrier’s design is important to its effectiveness and should be considered for new bridges with the potential to become symbolic suicide sites.
Job Strain and Health-Related Lifestyle: Findings From an Individual-Participant Meta-Analysis of 118 000 Working Adults
Authors: Heikkilä Katriina , Fransson Eleonor I. , Nyberg Solja T. , Zins Marie , Westerlund Hugo , Westerholm Peter , Virtanen Marianna , Vahtera Jussi , Suominen Sakari , Steptoe Andrew , Salo Paula , Pentti Jaana , Oksanen Tuula , Nordin Maria , Marmot Michael G. , Lunau Thorsten , Ladwig Karl-Heinz , Koskenvuo Markku , Knutsson Anders , Kittel France , Jöckel Karl-Heinz , Goldberg Marcel , Erbel Raimund , Dragano Nico , DeBacquer Dirk , Clays Els , Casini Annalisa , Alfredsson Lars , Ferrie Jane E. , Singh-Manoux Archana , Batty G. David , Kivimäki Mika 
Published: May 2013

Objectives. We examined the associations of job strain, an indicator of work-related stress, with overall unhealthy and healthy lifestyles. Methods. We conducted a meta-analysis of individual-level data from 11 European studies (cross-sectional data: n = 118 701; longitudinal data: n = 43 971). We analyzed job strain as a set of binary (job strain vs no job strain) and categorical (high job strain, active job, passive job, and low job strain) variables. Factors used to define healthy and unhealthy lifestyles were body mass index, smoking, alcohol intake, and leisure-time physical activity. Results. Individuals with job strain were more likely than those with no job strain to have 4 unhealthy lifestyle factors (odds ratio [OR] = 1.25; 95% confidence interval [CI] = 1.12, 1.39) and less likely to have 4 healthy lifestyle factors (OR = 0.89; 95% CI = 0.80, 0.99). The odds of adopting a healthy lifestyle during study follow-up were lower among individuals with high job strain than among those with low job strain (OR = 0.88; 95% CI = 0.81, 0.96). Conclusions. Work-related stress is associated with unhealthy lifestyles and the absence of stress is associated with healthy lifestyles, but longitudinal analyses suggest no straightforward cause–effect relationship between work-related stress and lifestyle.
Bullying and Quality of Life in Youths Perceived as Gay, Lesbian, or Bisexual in Washington State, 2010
Authors: Patrick Donald L. , Bell Janice F. , Huang Jon Y. , Lazarakis Nicholas C. , Edwards Todd C. 
Published: May 2013

Objectives. We examined the association between perceived sexual orientation (PSO), bullying, and quality of life (QOL) among US adolescents. Methods. We analyzed data from the 2010 Washington State Healthy Youth Survey collected in public school grades 8, 10, and 12 (n = 27 752). Bullying status was characterized as never bullied, bullied because of PSO, or bullied for other reasons. Survey-weighted regression examined differences in QOL, depressed mood, and consideration of suicide by bullying status. Results. Among male students, 14%, 11%, and 9% reported being bullied because of PSO in 8th, 10th, and 12th grades, respectively; and among female students, 11%, 10%, and 6%. In all gender and grade strata, being bullied because of PSO was associated with lower QOL scores and increased the odds of depressed mood or consideration of suicide. Moreover, the magnitudes of these associations were greater than for being bullied for other reasons. Conclusions. Bullying because of PSO is widely prevalent and significantly affects several facets of youth QOL. Bully-prevention or harm-reduction programs must address bullying because of PSO.
Does proclination of maxillary incisors really affect the sagittal position of point A?
Authors: Bicakci Ali Altug , Cankaya Ozkan Semih , Mertoglu Serhat , Yilmaz Nurbengu , Altan Burcu Kocoglu 
Published: May 2013

ABSTRACT

Objective:
To examine the effect of maxillary incisor proclination due to orthodontic treatment upon the sagittal position of point A and evaluate the effect of this possible movement of point A on sella-nasion-point A (SNA) angle.

Materials and Methods:
A study group was formed from 25 subjects (12 male and 13 female) who had Class II division 2 malocclusion with retroclined upper incisors, and a control group was formed from 25 subjects (12 male and 13 female) who had minor crowding in the beginning of the treatment and required no or minimal maxillary anterior tooth movement. Treatment changes in maxillary incisor inclination, sagittal position of point A, SNA angle, and movement of incisor root apex and incisal edge were calculated on pretreatment and posttreatment lateral cephalographs.

Results:
Maxillary incisors were significantly proclined (17.33°) in the study group and not significantly proclined (1.81°) in the control group. This proclination resulted in 2.12-mm backward movement of the root apex and 5.76-mm forward movement of the incisal edge of maxillary incisors. Point A moved 1.04 mm backward (P  =  .582) and 0.48 mm (P  =  .811) forward in the study and control groups, respectively. Incisor root apex and incisal edge almost remained stable in the control group. No significant change was observed in the value of the SNA angle in both the study and control groups.

Conclusions:
Proclination of maxillary incisors accompanied by backward movement of incisor root apex caused posterior movement of point A. However, this posterior movement does not significantly affect the SNA angle.
Effects of Consumer-Facing Technologies on Patient Engagement, Behavior Change, and Type 2 Diabetes–Related Health Outcomes
Authors: Dyer Jennifer Shine 
Published: May 2013

In Brief
The decisions most affecting the health and well-being of patients with diabetes are made by the patients themselves. Thus, technologies that target patient empowerment and behavior change are making a large impact on diabetes-related health outcomes. This article highlights a variety of technologies that encourage insulin dosing changes, provide motivation for checking blood glucose, organize blood glucose meter data, and motivate patients to lose weight. It includes discussion of several theories of patient engagement and health behavior change involving consumer-facing patient-centered technologies.
Synthesis of phase purity V2AlC via self-propagation high temperature sintering
Authors: Li Xin , Li Xiao , Liang Baoyan 
Published: May 2013

Abstract
V2AlC was synthesized via self-propagation high-temperature sintering using V/Al/C powders as raw materials. Results showed that the main phase of the product was V2AlC in the sample from 2V/Al/C powders. A low amount of VC0.75 was also observed in the product. The weight contents of V2AlC and VC0.75 in this sample were 94.5 % and 5.5 %, respectively. Excess Al additives clearly improved the synthesis of V2AlC. For the raw material 2V/1.1Al/C, single-phase V2AlC material can be obtained.
The Effect of Shear Strain Amplitude and Loading Cycle on the Horizontal Characteristics of Fiber Reinforced Nanocomposite Elastomeric Seismic Isolators
Authors: Motameni M. Mokhtari , Kokabi M. , Bahramian A. R. 
Published: May 2013

AbstractFiber-reinforced elastomeric isolators (FREIs) are a new generation of seismic isolation devices in which steel plates are replaced by fibers. FREIs have a number of advantages over SREIs including; superior energy dissipation capability, potentially low manufacturing cost, light weight, and the possibility of being produced in long rectangular strips or large sheets and being modified to the required size locally. The main purpose of this work was to investigate the effect of shear strain amplitude and loading cycles on the horizontal characteristics of fiber reinforced nanocomposite elastomeric isolators (FRNEIs) which were manufactured based on nanocomposite rubber compounds. The results of typical isolator horizontal test showed that by increasing the number of cycles of loading and shear strain, the values of effective horizontal stiffness and shear modulus of FRNEI decrease and the viscous damping increases. This stress softening is known as the “Mullins effect”, which occurs in filled rubbers.
Differential Molding System for Micro Injection Molding of Thermoplastics
Authors: Wang X. , Xie P. , Zhang P. , Ding Y. , Yang W. 
Published: May 2013

Abstract
A differential molding system for micro injection molding of thermoplastics was designed and fabricated. As the core part, a planetary gear pump was integrated into the molding module and used for metering, delivering and supercharging. The molding system was installed in the stationary platen beside which a servo motor was connected to the transmission shaft of the pump through a coupling. A traditional injection molding machine which was equipped with this module could be upgraded to a precise micro injection molding machine and realized the function of multiple micro injection molding machines. A process study was first performed to verify the machine performance and to determine the influence of the main process parameters. It has been proved by experiments that the differential molding system could realize the manufacture of fine and precision parts with micro structures in one step with high efficiency at low cost.
Effect of Hot Water and Water-carrying Agent on the Properties of Silane-water Crosslinked Linear Low Density Polyethylene
Authors: Chen T. , Wang J. , Shi P. , Li Q. , Wu C. 
Published: May 2013

Abstract
The influence of hot water and the water-carrying agent aluminum potassium sulfate dodecahydrate (alum) on the mechanical and thermal properties of the silane-water crosslinked linear low density polyethylene (LLDPE) was investigated. LLDPE was melt-grafted with various content of vinyl trimethoxysilane (VTMS) using dicumyl peroxide (DCP) as initiator. The results show that the contribution of hot water to gel content is poor, about 2 to 16%, compared with that of the silane grafted LLDPE. Is feasible to achieve silane-water crosslinking reaction with alum for self-crosslinked LLDPE; furthermore, the self-crosslinked LLDPE has lower crosslink density (ν). It was found that alum could not only conduct silane-water crosslinking reaction effectively, but also improve the mechanical properties, especially the elongation behavior. The heat of fusion (ΔHm), the melting temperature (Tm), and the degree of crystallinity (Xc) of the hot water crosslinked LLDPE decreased with the advancement of VTMS. The Avrami exponent n of self-crosslinked sample was larger than that of hot water crosslinked sample. This means that the alum could contribute to the growth of crystallization.
Golimumab in Patients with Active Rheumatoid Arthritis Despite Methotrexate Therapy: Results Through 2 Years of the GO-FORWARD Study Extension
Authors: Keystone Edward C. , Genovese Mark C. , Hall Stephen , Miranda Pedro C. , Bae Sang-Cheol , Palmer William , Wu Zhong , Xu Stephen , Hsia Elizabeth C. 
Published: May 2013

Objective.To assess the longterm efficacy and safety of golimumab in patients with active rheumatoid arthritis (RA) despite methotrexate (MTX) therapy.Methods.We randomized 444 RA patients with inadequate response to MTX (3:3:2:2) to placebo + MTX (Group 1), golimumab 100 mg + placebo (Group 2), golimumab 50 mg + MTX (Group 3), or golimumab 100 mg + MTX (Group 4). Subcutaneous golimumab/placebo was injected every 4 weeks. Patients could escape early (Group 1 added golimumab 50 mg, Group 2 added MTX, Group 3 increased golimumab to 100 mg, Group 4 continued 100 mg) based on Week 16 swollen and tender joint counts. From Week 24, Group 1 patients received golimumab 50 mg + MTX. After the Week 52 database lock, patients in the longterm extension received golimumab 50–100 mg ± MTX. Coprimary endpoints [Week 14 American College of Rheumatology (ACR)20, Week 24 Health Assessment Questionnaire Disability Index (HAQ-DI)] and Week 52 findings have been published; 2-year findings (observed data by randomized group, no imputation) are presented.Results.Of 444 randomized patients, 392 continued from Week 52 (Group 1: n = 116, Group 2: n = 116, Group 3: n = 84, Group 4: n = 76). Clinical improvement was maintained through Week 104; ∼75% and 72% of patients randomized to golimumab 50 mg + MTX and 100 mg + MTX achieved ACR20 response, respectively. The majority [88% (105/120)] of golimumab + MTX–treated patients with Week 24 HAQ-DI improvement ≥ 0.25 maintained improved physical function through Week 104. Group 1 patients with delayed golimumab treatment exhibited more Week 104 radiographic progression (mean change score = 1.15) than golimumab + MTX-randomized patients (0.52). Incidences of serious infections were 2.24, 4.77, 5.78/100 patient-years of followup for golimumab 50 mg + MTX, 100 mg + placebo, and 100 mg + MTX, respectively.Conclusion.Clinical improvement was maintained and no new safety signals were identified with 2 years of golimumab + MTX. Golimumab efficacy and safety, including serious infections, will continue to be monitored through 5 years (Clinical Trial No. NCT00264550).
L'extension de la psychanalyse
Authors: Kaës René 
Published: May 2013

L’auteur expose les problèmes épistémologiques posés par la mise en œuvre de la méthode et de la problématique freudiennes dans un autre champ que celui de la cure individuelle : dans les dispositifs de travail psychanalytiques avec plusieurs sujets, et notamment dans les dispositifs de groupe. Tous les dispositifs psychanalytiques ne mobilisent pas les mêmes configurations psychiques. Les dispositifs de groupe mettent en travail non pas un seul espace psychique, mais trois : celui du groupe, celui des liens intersubjectifs et celui de chaque sujet. Chaque dispositif explore positivement un ou plusieurs espaces de la réalité psychique, mais il laisse à ses frontières un « reste à connaître » : quels processus et formations de la réalité psychique connaissons-nous par le moyen de ces dispositifs, comment les connaissons-nous, et que laissons-nous de côté, telles sont les principales questions formulées dans cette étude. Y répondre entraîne la nécessité de reformuler certaines conceptions de la réalité psychique inconsciente et de ses effets de subjectivité.