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… and from week to week. Yet, to date little is known about these dynamic aspects of recovery. In the present project, the focus will be on examining these dynamic aspects of central recovery-related variables (e.g. sleep, fatigue) by investigating how they systematically change over the course of the workweek. Hypothesis and Objectives: It will be investigated how work characteristics (e.g. regular vs. irregular workweeks), work demands, and characteristics of employees (e.g. personality … quality and fatigue over the course of the week. Setting and Methods: A series of experience-sampling studies will be conducted (in China or Europe), involving various measurement occasions per day over the course of 14 days. Data collection can occur online or via smartphones. Impact: Recovery from work demands is key to long-term occupational health. Since the dynamic aspects of recovery are still poorly understood, the present project will make an important contribution to this line of research. It has both theoretical as well as practical implications. Requirements candidate: Highly motivated student with good English communication skills and proactive and resolute attitude. Keywords: occupational health, recovery, sleep, work demands, work stressors, personality characteristics Top 5 selected publications: 1. Hülsheger, U. R., Lang, J. W. B., …

… 15) Proposal (250 words): Introduction: For many young same-sex attracted individuals/young LGBT, social media use is a prominent form of self-expression, and means to acquiring community norms, finding support, avoiding discrimination and coping with rejection. At the same time, it is a gateway for exposure and access to and risk contexts, such as substance use and sexual risk-taking. Quite likely, social media use is a main determinant of young LGBT’s psycho-social well-being and is related … taking in young LGBT. Sub goals are: 1. Testing the buffer vs. risk hypothesis of social media use, i.e., finding support vs. exposure to risks. 2. Understanding how norms about sexual risk and substance use are communicated in social media, and how they influence individual behavior. 3. Understanding well-being of young LGBT using social media in relation to their coming out status and face- keeping. 4. Assessing social media use as a determinant for depression, loneliness, and suicidal ideation. … a romantic relationship can protect same-sex attracted youth from the impact of expected rejection. Journal of Adolescence, 37, 1293-1302. (cited 8 times) 3. Baams, L. Jonas, K. J.,Utz, S., Bos, H.M.W., & van der Vuurst, L. (2011). Internet use and online social support among same sex attracted individuals of different ages. Computers in Human Behavior, 27, 1820- 1827. (cited 46 times) 4. Stutterheim, S. E., Pryor, J. B., Bos, A. E., Hoogendijk, R., Muris, P., & Schaalma, H. P. (2009). …