Elementi contestuali nella costruzione del benessere degli insegnanti in due casi studio italiani

L’articolo propone una riflessione su alcuni elementi critici della costruzione del benessere professionale degli insegnanti mettendo in luce, accanto alle note cause di insorgenza della sindrome del burnout quali fattori individuali, emotivi e relazionali, anche gli effetti che sembrano riconducibili alla condizione lavorativa nel suo complesso e dunque al sistema di attività nel quale viene svolto questo mestiere. Per dar conto di tali effetti l’articolo discute i risultati di due contributi empirici, realizzati in modo indipendente, a distanza di dieci anni l’uno dall’altro, nel Sistema scolastico italiano. In particolare i due studi fanno riferimento alla condizione di benessere socio professionale di insegnanti di scuola dell’infanzia e primaria in due fasi distinte dell’evoluzione del sistema scolastico italiano (che nell’arco dei dieci anni intercorsi fra i due studi è stato interessato da continui tentativi di riforme, da un crescente precariato, da un progressivo indebolimento del riconoscimento della professione, dalla presenza diffusa in classe di bambini di differenti culture, dall’introduzione, largamente approssimativa, di nuove tecnologie, dalla scarsa corrispondenza tra lavoro effettivo ed aspettative dei futuri insegnanti). Senza la pretesa di fornire risposte definitive ad un problema evidentemente complesso la ri-lettura dei due studi sul burnout, realizzati in due distinte fasi dell’evoluzione del sistema scolastico, pur confermando, in parte, i risultati di altri lavori simili, solleva il problema complementare della contestualizzazione delle modalità di espressione del disagio degli insegnanti in relazione al più ampio tessuto identitario professionale nel quale essi operano. Tessuto che sembra mutare al mutare del posizionamento sociale e culturale dell’insegnamento. (DIPF/Orig.)

Work engagement among school directors and teachers' behavior at work

Using data from a representative sample of public primary schools in Madagascar, this paper analyzes engagement at work among school directors and investigates the impact of school heads' supervisory roles on teachers' behavior at work. The results show clear signs of weak management within public primary schools. We find that school heads' engagement at work is positively associated with their employment conditions, job satisfaction, and overall working environment. The results also indicate that principals' management styles have a positive effect on teachers’ commitment at work, but no significant impact on absenteeism.

Prevalence of vocal problems in portuguese primary and secondary shool level teachers

This study compared the prevalence of vocal problems in two Portuguese groups: 73 teachers that use their voice as professional tool (teachers’ group) and 73 non-voice professionals (control group). It also identified the risk factors that contributed to teachers’ group voice problems. A questionnaire was applied to both goups in order to obtain information about vocal health, hygiene and behavior, professional activity and general physical health. Statistical results revealed that the teachers’ group presented a higher prevalence of vocal problems than the control group: 52% reported hoarseness, 46.6% vocal fatigue and 45.2% vocal discomfort compared with 31.5%, 20.5 % e 28.7%, respectively. Environmental factors (eg., smoke and cold temperatures), vocal abuse and upper respiratory pathologies (e.g., colds, laryngitis and pharyngitis) seemed to increase teachers’ voice disorders (p-value < .05). In conclusion, the absence of vocal pedagogy in the curricular plan of teachers’ higher education associated to poor working environmental conditions and professional voice demands explained the higher prevalence of vocal problems in teachers’ group.

Commentary on "Stress ulcer prophylaxis in hospitalized patients, subsequent use in primary care and physicians' opinions about acid-suppressive therapy"

SIN FINANCIACIÓN

Vulnerabilidade ao stress, estratégias de coping e autoeficácia em professores portugueses

Neste trabalho, apresentamos uma investigação realizada com professores, no qual se procura determinar a vulnerabilidade ao stress ; identificar as principais fontes de stress ; estabelecer as principais estratégias de coping; analisar se as estratégias deste condicionam a presença de stress laboral; e reconhecer se a autoeficácia percebida é preditora desse tipo de stress . Trata-se duma investigação por questionário, do tipo correlacional, e a amostra é constituída por 54 professores do Ensino Básico público português. As respostas ao Questionário sociodemográfico e profissional; ao Questionário de Vulnerabilidade ao Stress — 23QVS (Serra, 2000); ao Questionário de Stress nos Professores — QSP (Gomes et al ., 2006; Gomes, 2007); ao Coping Job Scale — CJS de Latack (adaptação de Jesus & Pereira, 1994); e à Escala de Avaliação de Autoeficácia Geral (Ribeiro, 1995) revelam que 20,4% dos docentes são vulneráveis ao stress ; os comportamentos inadequados/indisciplina dos alunos são as principais fontes de stress ; as estratégias de controlo são as mais utilizadas pelos participantes para enfrentar o stress , seguidas das de escape e das de gestão de sintomas. Os professores não vulneráveis ao stress utilizam principalmente estratégias de controlo e apresentam níveis mais elevados de eficácia perante a adversidade, bem como de iniciativa e persistência em relação aos professores vulneráveis ao stress

Leaf-, Panel- And Latex-expressed Sequenced Tags From The Rubber Tree (hevea Brasiliensis) Under Cold-stressed And Suboptimal Growing Conditions: The Development Of Gene-targeted Functional Markers For Stress Response.

Hevea brasiliensis is a native species of the Amazon Basin of South America and the primary source of natural rubber worldwide. Due to the occurrence of South American Leaf Blight disease in this area, rubber plantations have been extended to suboptimal regions. Rubber tree breeding is time-consuming and expensive, but molecular markers can serve as a tool for early evaluation, thus reducing time and costs. In this work, we constructed six different cDNA libraries with the aim of developing gene-targeted molecular markers for the rubber tree. A total of 8,263 reads were assembled, generating 5,025 unigenes that were analyzed; 912 expressed sequence tags (ESTs) represented new transcripts, and two sequences were highly up-regulated by cold stress. These unigenes were scanned for microsatellite (SSR) regions and single nucleotide polymorphisms (SNPs). In total, 169 novel EST-SSR markers were developed; 138 loci were polymorphic in the rubber tree, and 98 % presented transferability to six other Hevea species. Locus duplication was observed in H. brasiliensis and other species. Additionally, 43 SNP markers in 13 sequences that showed similarity to proteins involved in stress response, latex biosynthesis and developmental processes were characterized. cDNA libraries are a rich source of SSR and SNP markers and enable the identification of new transcripts. The new markers developed here will be a valuable resource for linkage mapping, QTL identification and other studies in the rubber tree and can also be used to evaluate the genetic variability of other Hevea species, which are valuable assets in rubber tree breeding.

The Environment Of Professional Practice And Burnout In Nurses In Primary Healthcare.

to assess how nurses perceive autonomy, control over the environment, the professional relationship between nurses and physicians and the organizational support and correlate them with burnout, satisfaction at work, quality of work and the intention to quit work in primary healthcare. cross-sectional and correlation study, using a sample of 198 nurses. The tools used were the Nursing Work Index Revised, Maslach Burnout Inventory and a form to characterize the nurses. To analyze the data, descriptive statistics were applied and Spearman's correlation coefficient was used. the nurses assessed that the environment is partially favorable for: autonomy, professional relationship and organizational support and that the control over this environment is limited. Significant correlations were evidenced between the Nursing Work Index Revised, Maslach Burnout Inventory and the variables: satisfaction at work, quality of care and the intent to quit the job. the nurses' perceptions regarding the environment of practice are correlated with burnout, satisfaction at work, quality of care and the intent to quit the job. This study provides support for the restructuring of work processes in the primary health care environment and for communication among the health service management, human resources and occupational health areas.

Atividade fisica e saude : estudo do conhecimento de professores de educação fisica do ensino fundamental atraves da educação a distancia

Universidade Estadual de Campinas . Faculdade de Educação Física

Stress at work among electric utility workers

In the last decades there was an increase in stress at work and its effects on workers' health. These issues are still little studied in the electric utility sector. This study aims to evaluate factors associated with stress at work and to verify its associations with health status among workers of an electric company in São Paulo State, Brazil. A cross-sectional study was conducted with 474 subjects (87.5% of the eligible workers). Data were collected using self-reported questionnaires. A descriptive analysis, a multiple linear hierarchical regression analysis and a correlation analysis were performed. The majority of participants were males (91.1%) and the mean age was 37.5 yr. The mean score of stress level was 2.3 points (scale ranging from 1.0 to 5.0). Hierarchical multiple analyses showed that: regular practice of physical activities (p=0.025) and individual monthly income (p=0.002) were inversely associated with stress level; BMI was marginally associated with the stress level (p=0.074). The demographic characteristics were not associated with stress. Stress at work was significantly associated with physical and mental health status (p<0.001). To improve health of electric utility workers, actions are suggested to decrease stress by remuneration and an appropriate practice of physical activity aiming reduction of BMI

ACE as a Mechanosensor to Shear Stress Influences the Control of Its Own Regulation via Phosphorylation of Cytoplasmic Ser(1270)

Objectives: We tested whether angiotensin converting enzyme (ACE) and phosphorylation of Ser(1270) are involved in shear-stress (SS)-induced downregulation of the enzyme. Methods and Results: Western blotting analysis showed that SS (18 h, 15 dyn/cm(2)) decreases ACE expression and phosphorylation as well as p-JNK inhibition in human primary endothelial cells (EC). CHO cells expressing wild-type ACE (wt-ACE) also displayed SS-induced decrease in ACE and p-JNK. Moreover, SS decreased ACE promoter activity in wt-ACE, but had no effect in wild type CHO or CHO expressing ACE without either the extra-or the intracellular domains, and decreased less in CHO expressing a mutated ACE at Ser(1270) compared to wt-ACE (13 vs. 40%, respectively). The JNK inhibitor (SP600125, 18 h), in absence of SS, also decreased ACE promoter activity in wt-ACE. Finally, SS-induced inhibition of ACE expression and phosphorylation in EC was counteracted by simultaneous exposure to an ACE inhibitor. Conclusions: ACE displays a key role on its own downregulation in response to SS. This response requires both the extra- and the intracellular domains and ACE Ser(1270), consistent with the idea that the extracellular domain behaves as a mechanosensor while the cytoplasmic domain elicits the downstream intracellular signaling by phosphorylation on Ser(1270).

Stress at Work among Electric Utility Workers

In the last decades there was an increase in stress at work and its effects on workers' health. These issues are still little studied in the electric utility sector. This study aims to evaluate factors associated with stress at work and to verify its associations with health status among workers of an electric company in Sao Paulo State, Brazil. A cross-sectional study was conducted with 474 subjects (87.5% of the eligible workers). Data were collected using self-reported questionnaires. A descriptive analysis, a multiple linear hierarchical regression analysis and a correlation analysis were performed. The majority of participants were males (91.1%) and the mean age was 37.5 yr. The mean score of stress level was 2.3 points (scale ranging from 1.0 to 5.0). Hierarchical multiple analyses showed that: regular practice of physical activities (p=0.025) and individual monthly income (p=0.002) were inversely associated with stress level; BMI was marginally associated with the stress level (p=0.074). The demographic characteristics were not associated with stress. Stress at work was significantly associated with physical and mental health status (p<0.001). To improve health of electric utility workers, actions are suggested to decrease stress by remuneration and an appropriate practice of physical activity aiming reduction of BMI.

High Glucose-Mediated Oxidative Stress Impairs Cell Migration

Deficient wound healing in diabetic patients is very frequent, but the cellular and molecular causes are poorly defined. In this study, we evaluate the hypothesis that high glucose concentrations inhibit cell migration. Using CHO.K1 cells, NIH-3T3 fibroblasts, mouse embryonic fibroblasts and primary skin fibroblasts from control and diabetic rats cultured in 5 mM D-glucose (low glucose, LG), 25 mM D-glucose (high glucose, HG) or 25 mM L-glucose medium (osmotic control - OC), we analyzed the migration speed, protrusion stability, cell polarity, adhesion maturation and the activity of the small Rho GTPase Rac1. We also analyzed the effects of reactive oxygen species by incubating cells with the antioxidant N-Acetyl-Cysteine (NAC). We observed that HG conditions inhibited cell migration when compared to LG or OC. This inhibition resulted from impaired cell polarity, protrusion destabilization and inhibition of adhesion maturation. Conversely, Rac1 activity, which promotes protrusion and blocks adhesion maturation, was increased in HG conditions, thus providing a mechanistic basis for the HG phenotype. Most of the HG effects were partially or completely rescued by treatment with NAC. These findings demonstrate that HG impairs cell migration due to an increase in oxidative stress that causes polarity loss, deficient adhesion and protrusion. These alterations arise, in large part, from increased Rac1 activity and may contribute to the poor wound healing observed in diabetic patients.

Quercetin inhibits UV irradiation-induced inflammatory cytokine production in primary human keratinocytes by suppressing NF-kappa B pathway

Background: Topical flavonoids, such as quercetin, have been shown to reduce ultraviolet (UV) irradiation-mediated skin damage. However, the mechanisms and signaling pathways involved in this protective effect are not clear. UV irradiation leads to activation of two major signaling pathways, namely nuclear factor kappa B (NF-kappa B) and activator protein-1 (AP-1) pathways. Activation of NF-kappa B pathway by UV irradiation stimulates inflammatory cytokine expression, whereas activation of AP-1 pathway by UV irradiation promotes matrix metalloproteinase (MMP) production. Both pathways contribute to UV irradiation-induced skin damage, such as photoaging and skin tumor formation. Objective: To elucidate the underlying mechanism, we examined the effect of quercetin on UV irradiation induced activation of NF-kappa B and AP-1 pathways. Methods: Primary human keratinocytes, the major skin cell type subjected to physiological solar UV irradiation, were used to study the effects of quercetin on UV irradiation-induced signal transduction pathways. Results: Quercetin decreased UV irradiation-induced NF-kappa B DNA-binding by 80%. Consequently, quercetin suppressed UV irradiation-induced expression of inflammatory cytokines IL-1 beta (similar to 60%), IL-6 (similar to 80%), IL-8 (similar to 76%) and TNF-alpha (similar to 69%). In contrast, quercetin had no effect on UV irradiation activation of three MAP kinases, ERK, JNK, or p38. Accordingly, induction of AP-1 target genes such as MMP-1 and MMP-3 by UV irradiation was not suppressed by quercetin. Conclusion: Our data indicate that the ability of quercetin to block UV irradiation-induced skin inflammation is mediated, at least in part, by its inhibitory effect on NF-kappa B activation and inflammatory cytokine production. (C) 2011 Japanese Society for Investigative Dermatology. Published by Elsevier Ireland Ltd. All rights reserved.

Emotional Intelligence as a Moderator of Emotional and Behavioral Reactions to Job Insecurity

We present a model linking perceptions of job insecurity to emotional reactions and negative coping behaviors. Our model is based on the idea that emotional variables explain, in part, discrepant findings reported in previous research. In particular, we propose that emotional intelligence moderates employees' emotional reactions to job insecurity and their ability to cope with associated stress. In this respect, low emotional intelligence employees are more likely than high emotional intelligence employees to experience negative emotional reactions to job insecurity and to adopt negative coping strategies.

School Science Lessons

This website is linked to UNESCO.org and is free to download for educational purposes. It contains a database of school science experiments and investigations in physics, chemistry, biology, astronomy, geology, weather studies, agriculture projects for primary and secondary schools; and sexuality education and drugs education. It is based on a revision, updating and expansion of the "New UNESCO source book for science teaching", 1979 edition, UNESCO, Paris. It contains experiments from the "low cost" science teaching movement, simplified versions of classical experiments, experiments using locally available substances and kitchen chemicals, and environmental science. Some experiments anticipate experiments usually done in senior high school or college classes. The experiments should be "student-friendly" and "teacher-friendly" because there is no overwhelming technology. Enough theoretical background is included to remind teachers of the theoretical context of the experiment. Every experiment is based on materials listed in a modern commercial catalogue of chemicals and equipment for use by educational institutions. The procedures and safety standards are consistent with instructions issued by Education Queensland (Ministry of Education), State of Queensland, Australia.