University of Jyväskylä

About: University of Jyväskylä is a education organization based out in Jyvaskyla, Finland. It is known for research contribution in the topics: Population & Context (language use). The organization has 8066 authors who have published 25168 publications receiving 725033 citations. The organization is also known as: Jyväskylän yliopisto & Kasvatusopillinen korkeakoulu.

Job demands–resources model in the context of recovery: Testing recovery experiences as mediators

Abstract: The aim of the present study was to extend the original Job Demands– Resources (JD-R) model by taking into account recovery as an important mediation mechanism between work characteristics and well-being/ill-health. Specifically, we examined whether recovery experiences—strategies promoting recovery—might have a mediating role in the JD-R model among 527 employees from a variety of different jobs. The results showed that psychological detachment fully mediated the effects of job demands on fatigue at work and mastery partially mediated the effects of job resources on work engagement. Altogether, the results suggest that recovery merits consideration as a mediating mechanism in the JD-R model.

Cavity optomechanics mediated by a quantum two-level system

Abstract: Radiation pressure can control the motion of a nanoscale resonator, but pushing this to the quantum limit is difficult because the influence of a single photon is tiny. Here, the authors boost the radiation–pressure interaction by six orders of magnitude using a Josephson junction qubit

Limitation of reproductive success by food availability and breeding time in pied flycatchers

Abstract: Seasonal variation in reproductive success is a common phenomenon in many taxa. In birds, the costs and benefits associated with alternative breeding dates cause variation in clutch size, which is a main cause of seasonal decline in reproductive success. An immediate cause for this might be seasonal variation in the environment, or alternatively, but not mutually exclusively, date-independent differences in the parental/territory quality of early and late parents. The predictions of these hypotheses on seasonal reduction of reproductive success were tested by manipulating the hatching date and the amount of food during the nestling period of Pied Flycatchers (Ficedula hypoleuca). Delay in the hatching date caused lower fledging mass and lower fledging production, suggesting a causal relationship between breeding time and reproductive success. However, if delayed parents were provided with extra food, their success was the same as that of the controls. This suggests that deteriorating food supplies and/or higher energy demands for rearing the brood later in the season are important causes of the lower success of late breeders. Additionally, parental molt was affected by manipulation of both breeding date and food; delayed parents often began molting while still feeding young, but control parents generally did not. Furthermore, fledglings in the delayed group weighed less if their fathers began molting while feeding the young. This implies that parents traded off their onset of molt against the time and energy needed for their brood. These results support the view that timing-related energy constraints on breeding are important causes of seasonal decline in clutch size and reproductive success.