11,958 research outputs found
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Food Security Under a Changing Climate: Exploring the Integration of Resilience in Research and Practice
Climate change poses significant risks to our food systems, thus jeopardising the food security of millions of people worldwide. The concept of resilience is increasingly being proposed as a framework to find solutions to these challenges. In this chapter, we assess how resilience has been integrated in discussions about climate change and food security by both academics and practitioners. We performed a targeted review of the academic literature on climate change, food security, and resilience and found that despite a growing body of literature on the subject, the pathways through which actions translate into resilience and then into food security remain unclear. An examination of a sample of projects implemented through the Adaptation Fund revealed that many good practices with potential for resilience-building are used but also that suitable indicators and methods to monitor and evaluate resilience and its outcomes are lacking. Based on our findings, we conclude that while the concept of resilience has accompanied and may have favoured a transition towards more integrated approaches and interventions in work related to climate change and food security, further efforts are needed to identify an efficient and rational sequence of interventions to improve food security in response to climate threats
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Ensuring Access to Safe and Nutritious Food for All Through the Transformation of Food Systems
Differential responses in some quinoa genotypes of a consortium of beneficial endophytic bacteria against bacterial leaf spot disease
Many effective plant-microbe interactions lead to biological changes that can stimulate plant growth and production. This study evaluated the effect of the interaction between quinoa (Chenopodium quinoa Willd.) and endophytic bacterial strains on differential responses under biotic stress. Four strains of endophytic bacteria were used to inoculate three quinoa genotypes. Endophytic bacteria, isolated from the endosphere of healthy genotypes of quinoa plants, were used to evaluate their biocontrol activity against Pseudomonas syringae on quinoa plants, which causes leaf spot disease, depending on some different parameters. Quinoa genotype plants were treated with four treatments: pathogenic bacteria only (T1), internal bacteria only (T2), pathogenic bacteria + endogenous bacteria (T3), and untreated as the control (T4). The results indicated that there was a significant difference between chlorophyll content index of infected plants without bioagent (untreated) compared to plants bio-inoculated with endophytic bacteria. The highest mean disease incidence was on the plants without bacterial inoculum (90, 80, and 100%) for quinoa genotypes G1, G2, and G3, respectively. The results showed that there were significant differences in the weight of grains/plant, as the value ranged from 8.1 to 13.3 g when treated with pathogens (T1) compared to the treatment with pathogens and endogenous bacteria (T3), which ranged from 11.7 to 18.6 g/plant. Decreases in total aromatic amino acids appeared due to the pathogen infection, by 6.3, 22.8, and 24.1% (compared to the control) in G1, G2, and G3, respectively. On the other hand, genotype G3 showed the highest response in the levels of total aromatic and total neutral amino acids. The endophytic strains promoted quinoa seedling growth mainly by improving nutrient efficiency. This improvement could not be explained by their ability to induce the production of amino acids, showing that complex interactions might be associated with enhancement of quinoa seedling performance by endophytic bacteria. The endophytic bacterial strains were able to reduce the severity of bacterial leaf spot disease by 30, 40, and 50% in quinoa genotypes G1, G2, and G3, respectively, recording significant differences compared to the negative control. The results indicated that, G1 genotype was superior in different performance indicators (pathogen tolerance index, yield injury %, superiority measure and relative performance) for grain weight/plant under pathogen infection condition when treated with endophyte bacteria. Based on this study, these bacterial strains can be used as a biotechnology tool in quinoa seedling production and biocontrol to diminish the severity of bacterial leaf spot disease
Causes of Cassava Post-Harvest Losses Among Farmers In Imo State, Nigeria
ABSTRACT
The study examined farmers perception of post harvest cassava losses in Imo state. It specifically addressed the frequency of use of electronic sources of information on post harvest losses, perceived causes of cassava post-harvest losses and the involvement in cassava processing. A structured questionnaire was used to obtain data from 120 rural farmers selected at random. Data was analyzed using SPSS to obtain the mean, percentage and mean score. Findings from the study reveal that the frequency of use of the eight electronic sources of information on post harvest cassava losses listed has a grand mean of 1.7, an indication of low use of the sources. Mobile phone calls/SMS has the highest mean score(3.01). Age, education, household size, farm size, were important socioeconomic characteristics influencing the perceived causes of post harvest losses having been found significant at 5% level. Cassava farmers should be granted credit facilities and be encouraged to form cooperatives to help raise fund and get facility needed to reduce post-harvest losses. Farmers should be encouraged to use other electronic sources in order to enjoy those services and keep abreast of information on cassava post harvest losses.
Keywords; post harvest cassava losses, E- information sources
Consent and the Construction of the Volunteer: Institutional Settings of Experimental Research on Human Beings in Britain during the Cold War
This study challenges the primacy of consent in the history of human experimentation and argues that privileging the cultural frameworks adds nuance to our understanding of the construction of the volunteer in the period 1945 to 1970. Historians and bio-ethicists have argued that medical ethics codes have marked out the parameters of using people as subjects in medical scientific research and that the consent of the subjects was fundamental to their status as volunteers. However, the temporality of the creation of medical ethics codes means that they need to be understood within their historical context. That medical ethics codes arose from a specific historical context rather than a concerted and conscious determination to safeguard the well-being of subjects needs to be acknowledged. The British context of human experimentation is under-researched and there has been even less focus on the cultural frameworks within which experiments took place. This study demonstrates, through a close analysis of the Medical Research Council's Common Cold Research Unit (CCRU) and the government's military research facility, the Chemical Defence Experimental Establishment, Porton Down (Porton), that the `volunteer' in human experiments was a subjective entity whose identity was specific to the institution which recruited and made use of the subject. By examining representations of volunteers in the British press, the rhetoric of the government's collectivist agenda becomes evident and this fed into the institutional construction of the volunteer at the CCRU. In contrast, discussions between Porton scientists, staff members, and government officials demonstrate that the use of military personnel in secret chemical warfare experiments was far more complex. Conflicting interests of the military, the government and the scientific imperative affected how the military volunteer was perceived
Responsible E-Waste Value Chains in Africa
Population growth, increasing prosperity and changing consumer habits globally are increasing demand for consumer electronics. Further to this, rapid changes in technology, falling prices, increased affordability and consumer appetite for new products have exacerbated e-waste management challenges and seen millions of tons of electronic devices become obsolete. This rapid literature review collates evidence from academic, policy focussed and grey literature on e-waste value chains. The report should be read I conjunction with an earlier report on e-waste management.
E-waste is any electrical or electronic equipment, including all components, subassemblies and consumables, which are part of the equipment at the time the equipment becomes waste. When e-waste is collected and treated formally, it normally includes the following steps: Collection, Sorting and disassembly, Size reduction, Separation.
The following five pillars of a sustainable e-waste management system have been identified:
• Business and finance
• Policy and regulation
• Technology and skills
• Monitoring and control
• Marketing and awareness
As such, to support the development of a responsible e-waste value chain, the following elements must be addressed.
• Understanding how e-waste is currently managed
• There is no one-size-fits all solution to building a robust e-waste management system based on extended producer responsibility.
• An e-waste system built without a participatory approach is likely to be hampered by a series of issues.
• An overarching policy is necessary
• The choices made for the sector should be founded on two crucial elements – data from on the ground, and inputs from stakeholders.
• Enforcement is incumbent on the government mandate
The push towards a circular economy has provided stakeholders across the value chain with an impetus to initiate systemic improvements and invest in infrastructure and awareness raising.FCDO (Foreign, Commonwealth and Development Office
Walking with the Earth: Intercultural Perspectives on Ethics of Ecological Caring
It is commonly believed that considering nature different from us, human beings (qua rational, cultural, religious and social actors), is detrimental to our engagement for the preservation of nature. An obvious example is animal rights, a deep concern for all living beings, including non-human living creatures, which is understandable only if we approach nature, without fearing it, as something which should remain outside of our true home. “Walking with the earth” aims at questioning any similar preconceptions in the wide sense, including allegoric-poetic contributions. We invited 14 authors from 4 continents to express all sorts of ways of saying why caring is so important, why togetherness, being-with each others, as a spiritual but also embodied ethics is important in a divided world
Cooking the wild: the role of the Lundayeh of the Ulu Padas, (Sabah, Malaysia) in managing forest foods and shaping the landscape
This thesis provides an account of the Lundayeh subsistence system as found in the villages of Long Pasia and Long Mio, situated in the Ulu Padas, Sabah. The research focuses on Lundayeh food and diet, describing the diversity of resources used and the importance of forest foods. Comparison with studies from elsewhere in Borneo suggests that there are many similarities between Lundayeh practices and those of other highland peoples. These data are used to critically examine the concepts of 'wild' and 'wilderness', considering whether these concepts are meaningful, either analytically or for the Lundayeh. Investigation of the way in which the Lundayeh manipulate and manage their resources suggests that they have had a profound influence on their environment. Consequently, the Ulu Padas cannot be described as a wilderness, nor its resources as wild. The extent to which the Lundayeh themselves construct the categories of 'wild' and 'cultivated' foods is investigated through examining how these resources are owned, and their different roles in the diet. These data suggest that the Lundayeh recognise that there is no simple dichotomy of 'wild' and 'cultivated', but rather, that there is a gradation between these two categories. There is also evidence to suggest that the Lundayeh do not consider any resources as wild, in the sense of being uninfluenced by people. The environmental perceptions of the Lundayeh are also investigated, and how these have been shaped by their particular way of life, history, beliefs and knowledge systems. It is apparent that for the Lundayeh, the Ulu Padas is a cultural landscape. However, this is changing, as a result of recent social and environmental changes. This thesis concludes by examining the impact of changing perceptions on how the Lundayeh are managing their environment, and on their attitudes towards conservation
Intersectionality as a tool to adjudicate human rights law; A case study on the Inter-American System of Human Rights
Intersectionality is currently used in international human rights law adjudication primarily due to the influence of feminist approaches to international law. The application of intersectionality ranges from being included in soft law to being used as a tool in adjudicative processes. However, there is no clear understanding of how intersectionality is being conceptualised in human rights, nor is there any clear understanding as to how, when, and why intersectionality is being used as a tool to adjudicate rights. Nowadays, the use of intersectionality in human rights law is being developed independently of the discussions and debates of the same theory that are taking place amongst feminist scholars.
Using the works of Kimberlé Crenshaw and other key contemporary intersectional feminist scholars, this thesis critically analyses the concept of intersectionality as used both in feminist theory and in international human rights law as a means through which to better understand the use of the concept in international human rights law. The concept of intersectionality currently applied in human rights law is reworked to provide a clearer understanding of what this theory can and should entail when applied at law. Seeking to understand the implications of the concept as applied, the present work proposes an operationalisation process of intersectionality to be used in adjudicative processes. With a special focus on the Inter-American System of Human Rights and drawing on two key case studies, the research demonstrates how human rights adjudicative processes can benefit from using intersectionality as a tool to assess the different qualitative experience of harm of a victim oppressed by different systems simultaneously.
This thesis contributes to knowledge through its analysis of intersectionality as understood in both human rights law and within applied feminist theory and provides a model of how intersectionality can be better understood and used to better deliver justice
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