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Food production has been changing significantly in recent years as a result of climate change and of growing demand for food. This article aims to understand the link between food security and international security in the context of climate change, applying a systematic and qualitative analysis of the literature using the bibliometric method. This research observes that climate change tends to affect agricultural productivity, exposing societies to risk and the need for migration. However, good governance, together with international cooperation, can reduce the hazards of food insecurity, strengthening ties between countries and stimulating a fairer and more inclusive form of international trade.  相似文献   
53.
A critical task for peace pedagogy is to challenge views of peace as primarily responses to declared war. Crisis-based politics tend to focus on exceptional situations and fail to capture the entire spectrum of violence. Premised on the idea that peace cannot be understood in isolation of larger structural problems, this paper proposes the concept of ‘everyday peace’ as a framework for peace education. Drawing from a pedagogical initiative, we examine how students engage with the concept of everyday peace and present our findings in three related domains: (1) definition of everyday peace, (2) application of everyday peace principles and (3) role of collaboration in everyday peace approaches. Our analysis underscored two important themes in participants’ definitions of everyday peace: (1) peace as a value-based praxis and (2) individual-level and systemic components of everyday peace. Applying these principles to a violent event in the local community, participant responses emphasized compassion, cultures of peace and the need to draw reflexive, meaningful connections between local and global contexts. The participants also outlined the synergistic role of collaboration in everyday peacebuilding. We discuss our findings in relation to extant research and consider implications of an everyday peace framework for holistic peace education.  相似文献   
54.
Chioqueta AP  Stiles TC 《危机》2007,28(2):67-73
In this study we examined the role of psychological buffers (life satisfaction, self-esteem, perception of family cohesion, and perception of social support) in the development of hopelessness and suicidal ideation. The participants were 314 university students, 71 males and 243 females, who were asked to complete a battery of instruments measuring the psychological buffers mentioned above. The results of a set of hierarchical multiple regression analyses suggested that life satisfaction and self-esteem are independent predictors of lower levels of hopelessness, while perception of social support seems to be the major predictor of lower levels of suicidal ideation independent of depression and hopelessness severity. Thus, hopelessness seems to be minimized by the level of life satisfaction and level of self-esteem exhibited by the individuals, while the key factor to the mitigation of suicidal ideas seems to be perception of social support.  相似文献   
55.
The pandemic of Covid-19 has exposed the veins of inequality in Latin America. With a socioeconomic disaster looming, social emergency policies seemed inevitable. Yet while governments argue over the continuity of such policies and whether the fiscal rules in place should be respected, no sustainable response has come out. This essay problematises whether the pandemic could represent a critical juncture to forge ahead with political narratives that highlight tax exemptions and privileges enjoyed by the rich. We analyse the mitigation measures adopted by Argentina, Brazil, Chile and Uruguay and their repercussions on the debate surrounding progressive tax reforms to fund social schemes.  相似文献   
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DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa.  相似文献   
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In normative terms, human dignity usually implies two consequences: (a) human beings cannot be treated in some particular ways due to their condition as humans; and (b) some forms of life do not correspond to the ideal life of our community. This study consists in discussing the meaning of this idea of human dignity in contrast to the concept of humiliation in the context of institutional, i.e. political and legal, rights. Two concepts of human dignity will be discussed. The first absolute/necessary and formal/transcendental concept implies the proposition “because human beings have dignity, the following cluster of rights is valid”. Conversely, the second contingent and material concept corresponds to the thought “for being able to live in dignity, we must respect the following rights”. This paper claims that human dignity should be understood as the right to be protected from humiliation. Humiliation is the situation of incapacity or absence of self-determination.

  相似文献   
59.
Ammonium nitrate fuel oil is an explosive mixture found in most antipersonnel landmines (APL) buried throughout the Colombian territory. During more than 50 years of internal conflict, the Colombian government has found that trained dogs are the most effective method to detect APL. However, the olfactive signature in ANFO is unknown and also if there are differences in detection related to the explosive manufacturing origin. Therefore, this work begins with the analytical validation of the method used to determine ammonia, in its derivatized form as carbamate, released by home-made ANFO using HS-SPME-GC-FID. Once validated, the method was used to identify ammonia and other organic volatile compounds present in ANFO, under laboratory and simulated field conditions. The validation process includes the evaluation of the optimum conditions for the derivation and extraction of butylcarbamate, the determination of the working ranges with linear response in FID, the limits of detection and quantification, the sensitivity, and the precision. The results of the validation established linearity and sensitivity in a concentration between 20 and 120 mg/L, as well as low limits of detection and quantification of 6.4 and 21.4 mg/L, respectively. Also, an intermediate precision of 11% for butylcarbamate with a repeatability of 8%. The validated method showed in real samples of home-made ANFO besides ammonia, the presence of low molecular methylamines, and also exhibited differences in volatile compositions according to the origin. The objective of this work is to offer a reliable analytical methodology for the extraction and analysis of volatile compounds from ANFO.  相似文献   
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