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OBJECTIVE: Depressive symptoms are a leading cause of disability retirement and sick leave. The aim of this study was to assess the risk of depressive symptoms in German employees and its associations with factors from both the occupational and the non-occupational domain and gender. METHODS: In the second wave of the German Study of Mental Health at Work (SMGA), a representative sample of 2640 German employees (52% women) was studied. Depressive symptoms were assessed with the PHQ-9 questionnaire. Psychosocial occupational and non-occupational conditions were assessed with quantitative interviews. In this cross-sectional sample, the association of these factors with depressive symptoms was examined using logistic regression models. RESULTS: Factors from both the occupational and the non-occupational domain were associated with risk of depressive symptoms. Low appreciation from superior (ORmen 2.1 (95% CI 1.2-3.7); ORwomen 3.2 (95% CI 2.1-4.8)), low job control (ORmen 2.9 (95% CI 1.6-5.4); ORwomen 1.6 (95% CI 1.0-2.5)), and critical life events (ORmen 3.0 (95% CI 1.6-5.4); ORwomen 2.3 (95% CI 1.5-3.7)) had the strongest association with risk of depressive symptoms. The association with quantitative demands was stronger in caregivers than in non-caregivers. The results indicated possible differences in the associations of working conditions between men and women, and between family caregivers and non-caregivers. CONCLUSION: Factors from both work and private life are associated with depressive symptoms, especially appreciation, job control, and critical life events. Gender differences, with respect to appreciation and influence at work, suggest a more gender sensitive approach to psychosocial occupational health research and interventions.

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Purpose. The prevention of burnout symptoms is an essential goal in occupational health promotion. Physical exercise provides health-promotion benefits. This study aimed to verify physical exercise and its planned preparation as additional predictors of employees' burnout symptoms next to job demands and resources. We used the job demands-resources model as a theoretical framework. Method. In this longitudinal online study, 342 employees completed two questionnaires at an interval of 4 weeks. Results. Moderation and moderated mediation analyses confirmed vigorous physical exercise as a relevant personal resource, revealing that it buffers the detrimental effects of job demands on burnout symptoms. Planning strategies strongly predicted physical exercise and supported the debilitating effects of job resources on burnout symptoms. Especially in employees with medium levels of job stress, coping planning supported the enactment of vigorous physical exercise. Physical exercise did not mediate the association between job demands, job resources and burnout symptoms. Conclusions. This study enriches our knowledge about occupational health prevention. It points to a pressing topic for the near future, i.e., how work conditions (e.g., job stress) and leisure time (e.g., physical exercise) can be successfully combined to keep individuals' job stress to a minimum and to prevent burnout symptoms.

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Research indicates that physical activity is associated with lower perceived job stress and burnout. Recent literature shows that regular vigorous-intensity aerobic physical activity (VPA) may have beneficial effects going well beyond those of regular moderate-intensity aerobic physical activity (MPA). However, research investigating the competing roles of VPA and MPA in the context of deleterious job conditions is scarce. Using data from an online-study with 847 employees, we tested if VPA and MPA relate to lower symptoms of burnout and whether they moderate the relationship of job demands and burnout. Results point towards a negative main effect between MPA and burnout whereas no main effect has been found between VPA and burnout. However, results indicate that VPA moderates the deleterious relationship of high job demands and burnout. Findings suggest that employees may benefit from MPA independently from level of job demand whereas VPA may additionally help coping with high job demands

La investigación indica que la actividad física se asocia con una menor percepción de estrés y agotamiento emocional. La literatura reciente muestra que la actividad física aeróbica habitual de intensidad vigorosa (AFV) puede tener efectos provechosos que pueden ir bastante más allá que los de la actividad física aeróbica habitual de intensidad moderada (AFM). No obstante, hay pocos estudios que investiguen los papeles enfrentados de la AFV y la AFM en condiciones de trabajo adversas. A partir de los datos de un estudio online realizado con 847 empleados pusimos a prueba si la AFV y la AFM tienen relación con síntomas menores de agotamiento emocional y si modulan la relación de las exigencias del puesto de trabajo y el agotamiento laboral. Los resultados señalan un efecto principal negativo entre la AFM y el agotamiento emocional, pero ninguno entre este y la AFV. Sin embargo, los resultados indican que la AFV modera la relación nociva de las exigencias elevadas del puesto de trabajo con el agotamiento emocional. Los hallazgos indican que los empleados pueden sacar provecho de la AFM con independencia del nivel de exigencia del puesto mientras que la AFV puede además ayudar a manejar un elevado nivel de exigencia

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After base treatment of ZSM-5 crystals below 100 nm in size, TEM shows hollow single crystals with a 10 nm shell. SEM images confirm that the shell is well- preserved even after prolonged treatment. Determination of the Si/Al ratios with AAS and XPS in combination with argon sputtering reveals aluminum zoning of the parent zeolite, and the total pore volume increases in the first two hours of base treatment. In corresponding TEM images, the amount of hollow crystals are observed to increase during the first two hours of base treatment, and intact crystals are visible even after 10 h of leaching; these observations indicate different dissolution rates between individual crystals. TEM of large, commercially available ZSM-5 crystals shows inhomogeneous distribution of mesopores among different crystals, which points to the existence of structural differences between individual crystals. Only tetrahedrally coordinated aluminum is detected with (27) Al MAS NMR after the base leaching of nano-sized ZSM-5.

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Health behavior, like fruit and vegetable consumption (FVC), is affected by unfavorable job conditions. However, there is little research to date that combines job stress models and health-behavior change models. This longitudinal study examined the contribution of risk factors associated with job stress to the intention-planning-FVC relationship. In the context of the Health Action Process Approach, action planning (when-where-how plans) and coping planning (plans to overcome anticipated barriers) have been shown to be successful mediators in the translation of health-related intentions into action. Risk factors for job stress are operationalized as the interaction of job demands and job resources in line with the Job Demands-Resources (JD-R) model. Two hundred seventy-two employees (mean age 41.2 years, 73.9% female) from different jobs completed measures of intention at baseline (t1), action planning and coping planning 2 weeks later (t2), and FVC another 2 weeks later (t3). Job demands and job resources were assessed at t1 and t2. A moderated mediation analysis indicated that risk factors for job stress moderate the translation of intention into action planning (B = -0.23, p < .05) and coping planning (B = -0.14, p < .05). No moderation effect of the planning-FVC relationship by risk factors for job stress was found. However, coping planning directly predicted FVC (B = 0.36, p < .001). Findings suggest that employees intending to eat healthily use action planning and coping planning when job demands exceed job resources. For increasing FVC, coping planning appears most beneficial.

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Depth resolved X-ray photoelectron spectroscopy (XPS) combined with a 25 µm liquid jet is used to quantify the spatial distribution of 3 nm SnO2 nanoparticles (NPs) from the air-water interface (AWI) into the suspension bulk. Results are consistent with those of a layer several nm thick at the AWI that is completely devoid of NPs.

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We report a method to synthesize hollow ZSM-5 single crystals of a size below 100 nm that could function as nanoreactors with access through the zeolite micropores only. In the first step, ZSM-5 is synthesized with the respective crystal size. In the second, the zeolite is base leached and acid washed under mild conditions.

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The dihydride pincer complex [IrH2(POCOP)] reacts with surface silanols of mesoporous silica (SBA-15) to give the coordinatively unsaturated, yet stable hydridesiloxo Ir(III) species [IrH(O-SBA-15)(POCOP)]. The silica-grafted complex catalyses the hydrogenation of ethene and propene at low temperature and pressure without prior activation.

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The majority of knee magnetic resonance imaging examinations are performed for meniscal evaluations. Displaced meniscal tears including free meniscal fragments are an important diagnosis as most of these tears are unstable and require surgical intervention. Magnetic resonance imaging can be an invaluable tool in the arthroscopic search for a free meniscal fragment. In addition to the commonly seen bucket-handle tears flipped into the intercondylar notch, it is important to be aware of less common locations where menisci may be displaced. First, we briefly summarize the basic meniscal anatomy and some of the more common tear patterns. We then investigate the broad range of meniscal migration.

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BACKGROUND: Exercise is a frequent trigger of symptoms in asthmatic children and it worsens their quality of life. AIM: To compare the perception about exercise among asthmatic pediatric patients and their parents. MATERIAL AND METHODS: Asthmatic patients with symptoms related to exercise, were tested with an exercise challenge test following the Tal protocol. Before testing, a questionnaire about symptoms triggered by exercise was answered by children and their parents. The data was analyzed with a Kappa correlation test. RESULTS: Seventy five patients, aged 6 to 15 years, were studied. Forty one percent exercised less than one hour per week. Although 64% reported to experience respiratory difficulty and 80% cough during exertion, 87% were willing to perform more exercise. Forty percent of all patients had a positive challenge test for exercise-induced asthma. Correlation between patient's and parent's answers about the effect of physical activity exercise was low, with a kappa of 0.53. There was no correlation between exercise test and the answers to the questionnaire. CONCLUSIONS: Children with asthma frequently have exercise-associated symptoms and parental perception about this problem is very low.

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BACKGROUND: Congenital hepatic fibrosis (CHF) is an autosomic dominant disease that has been associated with polycystic kidney disease. AIM: To describe the medical management of 5 children with CHF and to evaluate the presence and extension of the associated renal disease. PATIENTS AND METHODS: Retrospective review of the medical charts of 5 children with CHF, aged 2 to 14 years. RESULTS: Three children presented autosomic recessive polycystic kidney disease, which was diagnosed before the appearance of liver disease manifestations. They presented a more severe liver damage, with a more aggressive clinical course requiring use of transjugular intrahepatic porto-systemic shunts (TIPS) or surgical porto-systemic shunts to control portal hypertension. The other two children, in whom the diagnosed was based on asymptomatic hepatomegaly, had normal renal function and structure with a more benign clinical course. CONCLUSIONS: The diagnosis of CHF should be suspected not only in children with polycystic kidney disease but in those children with persistent, hard consistency, left lobe predominance hepatomegaly.

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