Why do people participate in grassroots sustainability initiatives? Different motives for different levels of involvement

Grassroots sustainability initiatives experiment with alternative ways of consumption and are promising agents for fostering pro-environmental behavior change. However, sustainability initiatives depend on high levels of volunteering and collective action. With the present research we aimed to better understand why people participate in sustainability initiatives and whether doing so is an expression of a broader set of pro-environmental behaviors. We tested the predictive importance of various motivational factors derived from grassroots innovation research, the theory of planned behavior, and theories on collective action, using data from a cross-sectional factorial survey of participants in several sustainability initiatives in Switzerland (N = 180). Our results revealed different motivational patterns depending on the level of involvement. The intention to use services and offers of sustainability initiatives (low level of involvement) was best explained by favorable attitudes toward participation and perceived behavioral control, while the intention to volunteer for such initiatives (high level of involvement) was additionally based on strong social identity and a high belief in participative efficacy. Our results also revealed that participation in sustainability initiatives concurs with those other private-sphere pro-environmental behaviors that are most similar to the initiatives' activities. We conclude from our results that the divergence in motivational factors between users and volunteers might pose a challenge to the success of sustainability initiatives and therefore deserves greater attention in future research

Treatment of Medial Tibial Stress Syndrome according to the Fascial Distortion Model: A Prospective Case Control Study

Medial tibial stress syndrome (MTSS) is a common problem among athletes and soldiers. There is no proven theory that could explain the pathophysiology of shin splints. The therapies described so far are time-consuming and involve a high risk of relapse. The method according to the fascial distortion model (FDM) addresses local changes in the area of the lower leg fascia. It is suited to reduce pain and functional impairments associated with this symptom complex by applying targeted manual techniques. 32 patients (male: 30; female: 2) participated in this study. Visual analogue scale (VAS) was used for the quantification of pain. Scores were also given to rate the maximum painless exercise tolerance of the patients. Subsequently treatment of the crural fascia was performed. Patients retested ability of running and jumping. Therapy was continued until full exercise tolerance or painlessness was reached. A significant reduction of the VAS pain score from 5.2 to 1.1 could be achieved (P<0.001). The impairment of exercise tolerance could be reduced from 7 to 2 points (P<0.001). The duration of treatment was 6.3 (SD: 4.3) days on average. The FDM therapy is a potential effective method for acute treatment of MTSS

Free days for future? Longitudinal effects of working time reductions on individual well-being and environmental behaviour

Working time reductions (WTR) are a promising strategy to foster both environmental behaviour and individual well-being. It is unclear, however, whether these possible effects are more likely due to reduced income or to more discretionary time. Moreover, prior studies have only tested the environmental effects of WTR cross-sectionally, and have only tested the well-being effects of WTR including wage compensations. We conducted a longitudinal three-wave study with Swiss employees, including one group who voluntarily reduced their working hours following the first questionnaire. Between-subject analysis suggested that decreased working time is associated with decreased GHG-related behaviours, and increased individual well-being. While the improved GHG-related behaviour is mainly due to reduced income, the well-being effects arise despite lower income. Analyses over time revealed that after reducing their working hours, participants reported increased well-being, more intent-related pro-environmental behaviour, less car commuting, and decreased clothing expenditures. However, no improvement was found regarding other GHG-related behaviours, which are strongly linked to income levels. Thus, reducing standard working time, and simultaneously reducing income, may be a promising strategy. However, voluntarily working a day less per week will probably not reach the full ecological potential of a societal-level WTR

Public support for worktime reductions in Switzerland in the context of a transition to a post-growth society

Work time reductions (WTRs) may contribute to a transition to a post-growth society. We analysed Swiss stakeholders’ perceptions of the effects of WTRs and their support for measures to implement them. It is assumed that public support will play a significant role in putting WTRs into practice. There is some scientific evidence that work time reductions (WTRs) have beneficial ecological, social, and economic effects that could contribute to a transition to a post-growth society. However, little research has been conducted on whether the occurrence of such desired effects is acknowledged: Do they form part of the public debate and is there any public support for WTRs? We conducted a two-round survey among Swiss stakeholder groups (N = 51/28) to identify what effects they believe WTRs have, and what measures to implement WTRs they would be most likely to support. Stakeholders perceived WTRs to have several beneficial social and economic effects, including effects that are relevant for a transition to a post-growth society. However, they did not assume that ecological effects occur. Measures voluntarily implemented on an organisational level by businesses were more popular than those implemented on a national policy or social partnership level. Certain incremental measures and/or those that are merely conducive to WTRs were uncontested. Other more direct and extensive measures were predominantly supported, but not uncontested

On the Impossibility of Tight Cryptographic Reductions

The existence of tight reductions in cryptographic security proofs is an important question, motivated by the theoretical search for cryptosystems whose security guarantees are truly independent of adversarial behavior and the practical necessity of concrete security bounds for the theoretically-sound selection of cryptographic parameters. At Eurocrypt 2002, Coron described a meta-reduction technique that allows to prove the impossibility of tight reductions for certain digital signature schemes. This seminal result has found many further interesting applications. However, due to a technical subtlety in the argument, the applicability of this technique beyond digital signatures in the single-user setting has turned out to be rather limited. We describe a new meta-reduction technique for proving such impossibility results, which improves on known ones in several ways. First, it enables interesting novel applications. This includes a formal proof that for certain cryptographic primitives (including public-key encryption/key encapsulation mechanisms and digital signatures), the security loss incurred when the primitive is transferred from an idealized single-user setting to the more realistic multi-user setting is impossible to avoid, and a lower tightness bound for non-interactive key exchange protocols. Second, the technique allows to rule out tight reductions from a very general class of non-interactive complexity assumptions. Third, the provided bounds are quantitatively and qualitatively better, yet simpler, than the bounds derived from Coron\u27s technique and its extensions

The Influence in Airforce Soldiers Through Wearing Certain Types of Army-Issue Footwear on Muscle Activity in the Lower Extremities

The objective of the study was to analyse the influence of the shape and material of the military footwear worn by soldiers on muscle activity in the lower extremities, and whether such footwear could explain specific strain complaints and traumatic lesions in the region of the lower extremities

Reduktion der Erwerbsarbeitszeit – aber wie umsetzen?

Der potenzielle Beitrag einer Reduktion der Erwerbsarbeitszeit zu einer sozial-ökologischen Transformationen wird zunehmend angepriesen. Doch von welcher Reduktion ist die Rede? Und wie müssen sie und ihre Rahmenbedingungen ausgestaltet sein, damit sie einer sozialökologischen Transformation möglichst gerecht werden

Long-term benefit-risk balance of drug-eluting vs. bare-metal stents in daily practice: does stent diameter matter? Three-year follow-up of BASKET

Aims To assess the long-term benefit-risk ratio of drug-eluting (DES) vs. bare-metal stents (BMS) relative to stent size. Methods and results All 826 consecutive BASKET (BAsel Stent Kosten-Effektivitäts Trial) patients randomized 2:1 to DES vs. BMS were followed after 3 years. Data were analysed separately for patients with small stents (<3.0 mm vessel/<4.0 mm bypass grafts, n = 268) vs. only large stents (≥3.0 mm native vessels, n = 558). Clinical events were related to stent thrombosis. Three-year clinical target-vessel revascularization rates remained borderline reduced after DES [9.9 vs. 13.9% (BMS), P = 0.07], particularly in patients with small stents (10.7 vs. 19.8%, P = 0.03; large stents: 9.5 vs. 11.5%, P = 0.44). Cardiac death/myocardial infarction (MI) rates (12.7 vs. 10.0%, P = 0.30) were similar, however, death/MI beyond 6 months was higher after DES [9.1 vs. 3.8% (BMS), P = 0.009], mainly due to increased late death/MI in patients with large stents (9.7 vs. 3.1%, P = 0.006). The results paralleled findings for stent thrombosis. Conclusion The clinical benefit of DES was maintained at no overall increased risk of death or death/MI up to 3 years. However, death/MI rates were increased in DES vs. BMS patients beyond 6 months, particularly in patients with large stents, paralleling findings for stent thrombosis. Thus, stent size seems to influence the 3-year benefit-risk ratio after DES implantatio