Search results for "Long"

The frequency of parents’ reading-related activities at home and children's reading skills during kindergarten and Grade 1

2012

Abstract This longitudinal study investigated the associations between the frequency of parents’ reading-related activities at home and their children's reading-related skills during the transition from kindergarten to Grade 1. Longitudinal data were obtained for 1436 Finnish children (5- to 6-year-olds at baseline) and their mothers and fathers. 684 girls and 752 boys participating in the study represented four Finnish municipalities. The reading skills of the children were measured four times: at the beginning and at the end of their kindergarten year, and at the beginning and at the end of Grade 1. In kindergarten, decoding tests were administered individually. In Grade 1, group tests in…

Effect of Hot Drawing on the Mechanical Properties of Biodegradable Fibers

2016

The use of biodegradable polymers is increasingly attracting interest over the last years, since they can reduce the environmental effects related to disposal of traditional plastics and, in general, the use of fossil, non-renewable resources. One of the most promising applications is represented by fibers production. However, the orientation and the crystallinity degrees can significantly affect the mechanical properties. Therefore, it is of interest to investigate on the optimum processing conditions, in order to improve the mechanical properties. In particular, while crystallinity can be slightly modified by the processing, orientation can be significantly improved. In this work, the eff…

Keski-ikä elämänvaiheena

2010

Psychosocial safety climate (PSC) and enacted PSC for workplace bullying and psychological health problem reduction

2017

Bullying at work has profound effects on both the individual and organization. We aimed to determine if organizational psychosocial safety climate (PSC; a climate specific to worker psychological health) could reduce workplace bullying and associated psychological health problems (i.e., distress, emotional exhaustion, depression) if specific procedures were implemented (PSC enactment). We theorized that the PSC enactment mechanism works via psychosocial processes such as bullying mistreatment climate (anti-bullying procedures), work design (procedures reduce stress through work redesign), and conflict resolution (procedures to resolve conflict). We used two-wave national longitudinal interv…

Influence of mobbing (workplace bullying) on depressive symptoms: a longitudinal study among employees working with people with intellectual disabili…

2013

BACKGROUND: The problem of mobbing has attracted a great deal of attention over the past few years. This concern has increased the study of the phenomena, which has resulted in many scientific publications. Mobbing has been characterised as an emerging risk at work. The aim of this longitudinal study was to analyse the influence of mobbing on depressive symptoms in a sample of employees working with people with intellectual disabilities (ID). METHOD: The sample consisted of 372 Spanish employees working with people with ID at 61 job centres in the Valencian Community (Spain). Seventy-nine (21.2%) participants were men, and 293 were (78.8%) women. Mobbing was evaluated by the Mobbing-UNIPSIC…

The prospective effects of work–family conflict and enrichment on job exhaustion and turnover intentions: comparing long-term temporary vs. permanent…

2015

This study investigated work–family conflict (WFC) and enrichment (WFE) in relation to job exhaustion and turnover intentions among long-term temporary (n = 384) and permanent (n = 430) workers. We used three-wave data collected among Finnish university employees in 3 consecutive years. The participants were either permanently or temporarily employed for the whole 3-year period. The results showed that permanent employees reported both higher WFC and WFE during the follow-ups than temporary employees. Temporary workers reported higher job exhaustion and turnover intentions compared to permanent workers. Job contract functioned as a moderator: high WFC showed a prospective effect on increase…

INTEGRAL long-term monitoring of the Supergiant Fast X-ray Transient XTE J1739-302

2008

In the past few years, a new class of High Mass X-Ray Binaries (HMXRB) has been claimed to exist, the Supergiant Fast X-ray Transients (SFXT). These are X-ray binary systems with a compact companion orbiting a supergiant star which show very short and bright outbursts in a series of activity periods overimposed on longer quiescent periods. Only very recently the first attempts to model the behaviour of these sources have been published, some of them within the framework of accretion from clumpy stellar winds.Our goal is to analyze the properties of XTE J1739-302/IGR J17391-3021 within the context of the clumpy structure of the supergiant wind. We have used INTEGRAL and RXTE/PCA observations…

Changes in Mental Health during the COVID-19 Pandemic among Representative Sample of Young Adults from Germany, Israel, Poland, and Slovenia: A Longi…

2022

The aim of this cross-national longitudinal study was to identify a change in mental health indicators: coronavirus-related post-traumatic stress disorder (PTSD), perceived stress, and fear of vaccination (FoVac). The first measurement (T1) took place in February 2021, and the second (T2) took place in May–June 2021. The sample consisted of 1723 participants across Germany, Israel, Poland, and Slovenia, between the age of 20 and 40 (M = 30.74, SD = 5.74). A paired-samples Student’s t-test was used for testing the differences between T1 and T2. A repeated measures two-way ANOVA was performed to examine changes over time (T) and across the countries (C). A significant although small decrease …

A cohort perspective of youth poverty in the United States

2014

The aim of this paper is to study the degree of poverty persistence of American young adults and its evolution. Using data from NLSY79 and NLSY97, respectively, we compared two cohorts followed along eight years (in the 1980s and in the 2000s) to asses which socio-economic characteristics preserve them to fall in chronic poverty or determine the duration and severity of this detrimental experience.

Global dynamical behaviors in a physical shallow water system

2016

International audience; The theory of bifurcations of dynamical systems is used to investigate the behavior of travelling wave solutions in an entire family of shallow water wave equations. This family is obtained by a perturbative asymptotic expansion for unidirectional shallow water waves. According to the parameters of the system, this family can lead to different sets of known equations such as Camassa-Holm, Korteweg-de Vries, Degasperis and Procesi and several other dispersive equations of the third order. Looking for possible travelling wave solutions, we show that different phase orbits in some regions of parametric planes are similar to those obtained with the model of the pressure …