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111.
Agroecology has played a key role in helping Cuba survive the crisis caused by the collapse of the socialist bloc in Europe and the tightening of the US trade embargo. Cuban peasants have been able to boost food production without scarce and expensive imported agricultural chemicals by first substituting more ecological inputs for the no longer available imports, and then by making a transition to more agroecologically integrated and diverse farming systems. This was possible not so much because appropriate alternatives were made available, but rather because of the Campesino-a-Campesino (CAC) social process methodology that the National Association of Small Farmers (ANAP) used to build a grassroots agroecology movement. This paper was produced in a 'self-study' process spearheaded by ANAP and La Via Campesina, the international agrarian movement of which ANAP is a member. In it we document and analyze the history of the Campesino-to-Campesino Agroecology Movement (MACAC), and the significantly increased contribution of peasants to national food production in Cuba that was brought about, at least in part, due to this movement. Our key findings are (i) the spread of agroecology was rapid and successful largely due to the social process methodology and social movement dynamics, (ii) farming practices evolved over time and contributed to significantly increased relative and absolute production by the peasant sector, and (iii) those practices resulted in additional benefits including resilience to climate change. 相似文献
112.
Powell BJ Passalacqua NV Baumer TG Fenton TW Haut RC 《Journal of forensic sciences》2012,57(2):312-317
The objective of this study was to document patterns of fracture on infant porcine skulls aged 2-28 days (n = 57) because of a single, high energy blunt impact to the parietal bone with rigid (nondeformable) and compliant (deformable) interfaces. Fracture patterns were mapped using Geographic Information System software. For the same generated impact force, the rigid interface produced more fractures than the compliant interface for all ages. This study also showed that this increased level of impact energy versus an earlier study using a lower energy resulted in new sites of fracture initiation and also caused previously defined fractures that propagate into an adjacent bone. Several unique characteristics of bone and diastatic fracture were documented as a function of specimen age, impact energy, and interface. These data describe some baseline characteristics of skull fracture using an animal model that may help guide future studies from forensic case files. 相似文献
113.
Abstract: Indirect estimation methods of cocaine consumption may not reflect the real extent of cocaine use. Another approach is sewage epidemiology. This direct approach is based on analysis of a stable cocaine metabolite, benzoylecgonine (BE), in wastewater. Influent to the Lubbock (Texas) Water Reclamation Plant was sampled twice a week to assess weekly variations in estimates of cocaine consumption over a 5‐month period. BE was extracted from influent wastewater samples using solid phase extraction and analyzed using gas chromatography/mass spectrometry. Measured concentrations of BE were converted to cocaine equivalents; the estimated average daily consumption of cocaine during the study period was 1152 ± 147 g. Based on BE concentrations and sewage epidemiology, higher cocaine consumption was observed on weekends compared to weekdays (p < 0.0003). This method was effective in monitoring BE in wastewater and could be used to complement survey data in estimating cocaine use at a local level. 相似文献
114.
Todd H. Hall 《安全研究》2013,22(4):521-555
What does it mean to say a state is angry? To answer this question, this paper theorizes a diplomacy of anger. Specifically, the diplomacy of anger involves a vehement and overt state-level display of anger in response to a perceived violation. Although the diplomacy of anger threatens precipitous escalation in the face of further violations, it can be ameliorated by conciliatory gestures and will subside over time absent new provocations. What is more, the diplomacy of anger can also exercise a reciprocal influence on the emotional dispositions of those that practice it. The diplomacy of anger thereby contributes to constructing particular issues as sensitive and volatile, and thus outside the realm of standard bargaining interactions. To examine the analytical purchase of this approach vis-à-vis standard accounts of coercive diplomacy, this paper looks in-depth at the 1995–96 Taiwan Straits crisis. 相似文献
115.
Todd Sandler 《Public Choice》2010,143(3-4):317-324
This paper highlights Elinor Ostrom’s innovative and important work on common-property resources (CPRs), which helped earn her the Nobel Prize in Economics. In particular, she showed that neither privatization nor centralization necessarily would fix resource misallocation in CPRs. Ostrom recognized that common owners often developed effective governance that limited access to the CPR and promoted efficient transfers among generations. Through myriad approaches, she identified factors that foster efficient governance in hybrid institutions that are neither market nor state controlled. I use some simple games to illustrate her insights. 相似文献
116.
Dana Štefanová 《The History of the Family》2010,15(3):271-282
Due to the lack of micro-historical empirical studies, a general account of the situation of women in early modern rural societies of demesne lordship (Gutsherrschaft) is not possible, yet. Previous research has generally assumed that their economic position was difficult. Recent studies, however, aimed to modify this picture by emphasizing, in particular, their independent economic activities, especially with increasing age.This paper will address the position of widows in rural society. It will analyze land transfer contracts for three individual villages of the Northern Bohemian estate of Frýdlant between 1558 and 1750 and contrast the results with normative sources of the same estate. It will particularly deal with the question whether widows could work subject farms and holdings independently and how they secured livelihood after selling their properties. 相似文献
117.
Eyewitness identification research has reliably shown that accurate identifications are faster than inaccurate identifications. Recently, D. Dunning and S. Perretta (2002) claimed that an identification latency of 10-12 s not only best discriminates between accurate and inaccurate identifications but also produces extremely high accuracy rates, approaching 90%. Consistent with predictions from recognition memory theory, however, we show that the optimum time boundary varies with overall response latency under manipulations of retention interval and nominal lineup size, and that the accuracy rate inside the optimum time boundary is much less impressive than previously reported. We outline directions for clarifying the accuracy and latency relationship to assist the reliable diagnosis of identification accuracy. 相似文献
118.
Omalu BI Luckasevic T Shakir AM Rozin L Wecht CH Kuller LH 《The American journal of forensic medicine and pathology》2004,25(3):237-242
Obesity has attained epidemic proportions in the United States, with more than 50% of adults classified as overweight or obese. If untreated, morbidly obese patients have a 1 in 7 chance of reaching normal life expectancy. The surgical treatment of obesity has emerged as the most effective treatment modality in long-term weight control and has become increasingly popular, with attendant postoperative complications and death. We performed a cross-sectional, coroner based, 2-year retrospective review of archival case records for decedents who died following bariatric surgery for the treatment of obesity to identify underlying causes of death and forensic characteristics of this cohort. Fifteen (0.5%) out of 3097 archival cases died following bariatric surgery, with approximately 73% of decedents dying within 6 months of surgery. The underlying causes of death in 80% of decedents were natural comorbidities of obesity, with cardiovascular diseases (33%) being the most frequent causes of death, followed by gastrointestinal diseases (20%), acute pulmonary thromboembolism (13%), and acute bacterial pneumonia (13%). The majority of decedents were white females who remained morbidly obese after bariatric surgery. Only 2 decedents died of direct inadvertent/accidental surgical complications. 相似文献
119.
Dana Petersen Meredith Minkler Victoria Breckwich Vsquez Andrea Corage Baden 《政策研究评论》2006,23(2):339-354
In 2000, a regional rule governing maximum individual cancer risk from stationary facilities in Southern California was dramatically altered, reducing allowable risk levels by 75%. This article uses a case study approach to explore the role of a community‐based participatory research (CBPR) partnership, the Southern California Environmental Justice Collaborative, in producing research and helping spearhead policy advocacy leading to this policy change. It also highlights the role of the collaborative in helping to change the framing of the issue from individual to cumulative risk assessment, so that the regulatory agencies began to reflect this broader thinking in their policymaking. The collaborative's structure and methodology, regional focus, relationships with key decision makers, and its reputation as an important source of both credible science and “people power” were seen as contributing to its effectiveness. The role of contextual factors including a recovering and more regulation‐friendly economy also is highlighted, as are key barriers faced. Implications for other community–academic partnerships working to address regional and statewide public policy are discussed. 相似文献
120.