448 research outputs found
Resilience and unemployment: A case study of East German women
This is the author's PDF version of an article published in German politics ©2005. The definitive version is available at http://www.ingentaconnect.com/content/routledg/gpThis article discusses unemployment in the former East Germany and the impact that exceptionally high unemployment in the new German states has had on East German women since reunification. It reflects, in particular, on the potential influence of their experience of life in the GDR in developing coping strategies to deal with the effects of unemployment, an ongoing resistance to unemployment and, most significantly, to a male-breadwinner ethos
London 2012 and the physical activity legacy: to question legacy claims is to risk being labelled âunpatrioticâ
Those who ask difficult and critical questions about the participation legacy of the London Games, risk being grouped with anti-Olympic protesters and regarded as pessimistic cynics or simply moaners. However, just as nothing about the staging of the event was left to chance, a meticulous evidence-based approach should be applied to realising a physical activity legacy argue Kathy Armour, Jonathan Grix and Nikos Ntoumanis
Distribution, drivers, and impacts of compound marine heatwave and low net primary productivity extreme events in the ocean
Ocean extreme events can severely impact marine organisms and ecosystems. Of particular concern are multivariate compound events, namely when conditions are simultaneously extreme for multiple ocean ecosystem stressors. In 2013-2015, for example, an extensive marine heatwave (MHW), known as the âBlobâ, co-occurred locally with extremely low net primary productivity (NPPX) and negatively impacted marine life in the northeastern Pacific. Yet, little is known about the distribution, drivers, and impacts of such multivariate compound MHW-NPPX events.
The introduction of this thesis (Chapter 1) motivates the study of compound MHW-NPPX events by first giving an overview of how sea surface temperature (SST) and net primary production (NPP) are changing under climate change, with repercussions on climate and marine ecosystems. Long-term changes in SST and NPP are associated with a rise in extremely high SST and low NPP events, which may co-occur during compound MHW-NPPX events and drive severe impacts on marine ecosystems.
The Methods section (Chapter 2) then introduces the tools used in this thesis to study these potentially harmful compound MHW-NPPX events. We specifically use a combination of satellite-derived SST, chlorophyll concentration, and NPP observations, and large ensemble simulations by two Earth system models and by one global marine fish model.
Chapter 3, published in Biogeosciences (Le Grix et al., 2021), characterizes the distributions of MHW-NPPX events over the satellite period using satellite-based SST and chlorophyll concentration as a proxy for NPP. From 1998 to 2018, we find compound events to be frequent in the low latitudes, especially in the center of the equatorial Pacific, in the Arabian Sea and along the borders of the subtropical gyres. In contrast, compound events are rare in the high latitudes, where MHWs rarely co-occur with NPPX events. The frequency of compound MHW-NPPX events also varies across seasons, with most events occurring in spring in the mid-latitudes and in summer in the high latitudes. At the interannual time scale, large-scale modes of climate variability seem to modulate the frequency of compound events. For example, in the eastern equatorial Pacific, compound event likelihood is multiplied by a factor of 4 during El Niño events. Climate modes are associated with particular ocean conditions, which can favor or prevent the occurrence of compound MHW-NPPX events. Surface warming and reduced upwelling of nutrient-rich waters in the eastern equatorial Pacific during El Niño events may, for instance, contribute to driving compound MHW-NPPX events (Le Grix et al., 2022).
Earth system models (ESMs) can help identify the exact drivers of compound MHW-NPPX events. In Chapter 4, also published in Biogeosciences (Le Grix et al., 2022), we use large ensemble simulations by two ESMs: the GFDL ESM2M and the CESM2. Their representation of compound MHW-NPPX events is evaluated against satellite-derived observations. Both models correctly simulate frequent compound MHW-NPPX events in the low latitudes. There, MHWs are associated with nutrient limitation on phytoplankton growth and a relative increase in phytoplankton loss (e.g., grazing) compared to phytoplankton production, which drive low phytoplankton NPP and result in frequent compound MHW-NPPX events. In the high latitudes, however, models disagree on the likelihood and drivers of compound MHW-NPPX events. There, improved understanding of the factors controlling phytoplankton NPP is key to improving model representation of NPPX events and, ultimately, of compound MHW-NPPX events.
Lastly, in Chapter 5 (Le Grix et al., 2023 (submitted)), we evaluate the actual threat posed by compound MHW-NPPX events on marine ecosystems using a global marine fish model, the DBEM, forced by a large ensemble simulation from an ESM, the GFDL ESM2M. We first identify events of extremely low biomass of pelagic fish, and then look back at the ocean conditions that may have driven these events. We find that MHWs and NPPX events are both drivers of extreme impacts on pelagic fish biomass in the equatorial Atlantic, the central and eastern equatorial Pacific, in the northern part of the Indian Ocean and in the northeastern Pacific. There, pelagic marine ecosystems may be particularly vulnerable to compound MHW-NPPX events. We also identify regions where impacts may be caused by ocean conditions other than compound MHW-NPPX events, and by ocean conditions that do not necessarily correspond to a compound extreme event. Moderate anomalies in one ocean ecosystem stressor were found to never drive extreme impacts on pelagic fish. In contrast, over 78% of the global ocean, a combination of anomalies in multiple ocean ecosystem stressors is necessary to experience extreme impacts. Overall, Chapter 5 highlights the key role of ocean compound events in driving extreme impacts on marine ecosystems.
The Discussion (Chapter 6) summarizes our results and puts them into the larger perspective of ocean and compound event research. Overall, this thesis provides a first understanding of the distribution, drivers, and impacts of compound MHW-NPPX events. We highlight the need to improve their representation in ESMs, to further study their impacts, and to extend compound event research to other types of oceanic compound events. We also inform potential strategies to predict, prevent and moderate compound MHW-NPPX events impacts on marine ecosystems
Empathic and Self-Regulatory Processes Governing Doping Behavior
Evidence associating doping behavior with Moral Disengagement (MD) has accumulated over recent years. However, to date,
research examining links between MD and doping has not considered key theoretically-grounded influences and outcomes of MD. As
such, there is a need for quantitative research in relevant populations that purposefully examines the explanatory pathways
through which MD is thought to operate. Towards this end, the current study examined a conceptually-grounded model of doping
behavior that incorporated empathy, doping self-regulatory efficacy (SRE), doping MD, anticipated guilt and self-reported
doping/doping susceptibility. Participants were specifically recruited to represent four key physical-activity contexts and consisted
of team- (n = 195) and individual- (n = 169) sport athletes and hardcore- (n = 125) and corporate- (n = 121) gym exercisers
representing both genders (nmale = 371; nfemale = 239); self-reported lifetime prevalence of doping across the sample was 13.6%.
Each participant completed questionnaires assessing the aforementioned variables. Structural equation modelling indicated strong
support for all study hypotheses. Specifically, we established: (a) empathy and doping SRE negatively predicted reported doping; (b)
the predictive effects of empathy and doping SRE on reported doping were mediated by doping MD and anticipated guilt; (c) doping
MD positively predicted reported doping; (d) the predictive effects of doping MD on reported doping were partially mediated by
anticipated guilt. Substituting self-reported doping for doping susceptibility, multisample analyses then demonstrated these
predictive effects were largely invariant between males and females and across the four physical-activity contexts represented.
These findings extend current knowledge on a number of levels, and in doing so aid our understanding of key psychosocial
processes that may govern doping behavior across key physical-activity contexts
Of Mechanisms and Myths: Conceptualising Statesâ âSoft Powerâ Strategies through Sports Mega-Events
© 2016 Taylor & Francis. Joseph Nyeâs concept of âsoft powerâ has become an increasingly used term to help explain why statesâincluding so-called âemerging statesââare paying greater attention to acquiring various forms of cultural and political attraction. However, within mainstream International Relations, Political Science, and Sport Studies literature, a continuous debate remains as to what actually constitutes soft power, how national leaders go about acquiring it, and how forms of attraction convert into power outcomes in both the short- and long-term. This analysis endeavours to overcome these issues by offering an âideal typeâ model that details statesâ soft power strategies, the mechanisms they use, and the tangible future outcomes they gain
The Sochi Winter Olympics and Russiaâs unique soft power strategy
According to Joseph Nye, who coined the concept of âsoft powerâ, Putin âfailed to capitalize on the soft-power boost afforded to Russia by hosting the 2014 Winter Olympic Games in Sochiâ. With political volatility in the region throughout the year, Russiaâs ensuing actionsâculminating in the secession of Crimeaâand its position over the armed conflict in Ukraine, certainly appear to bear this out. The Sochi Olympics were predominantly framed by the Western press as a Russian soft power quest and an attempt to obtain belated recognition as a great power. However, Sochi should be understood as a part of a wider package of âspatial governanceâ undertaken by Putinâs regime. We argue that the Sochi mega-event is part of a wider soft power strategyâone which is not the same as, for example, the UKâs or Brazilâs use of such events. For Russia, international status means possessing both soft and hard power resources and being able to use them
- âŠ