Church's simple theory of types is a system of higher-order logic in which functions are assumed to be total. We present in this paper a version of Church's system called PF in which functions may be partial. The semantics of PF, which is based on Henkin's general-models semantics, allows terms to be nondenoting but requires formulas to always denote a standard truth value. We prove that PF is complete with respect to its semantics. The reasoning mechanism in PF for partial (...) functions corresponds closely to mathematical practice, and the formulation of PF adheres tightly to the framework of Church's system. (shrink)

The notion of social capital focuses attention on social connectedness within communities and the ways that this connectedness may affect health and well-being. There are many competing definitions of social capital but most suggest that it involves trust, social networks and reciprocity within communities, not necessarily geographically defined. The usefulness of social capital and related theories that help in understanding the function of nurses in rural communities are explored in this paper. Nurses and health service planners are becoming increasingly aware (...) of the potential contribution of community nurses in rural and/or remote areas, as evidenced in the development of nurse practitioners. Through their interrelational role and status in rural communities, nurses are often ‘immersed’ or ‘embedded’ in the social networks that make up the fabric of rural life and may therefore be important contributors to social capital. For a concept such as social capital to be useful in nursing research, it must have distinct attributes, delineated boundaries, and well-described preconditions and outcomes in multiple contexts. (shrink)

The k-provability for an axiomatic system A is to determine, given an integer k 1 and a formula in the language of A, whether or not there is a proof of in A containing at most k lines. In this paper we develop a unification-theoretic method for investigating the k-provability problem for Parikh systems, which are first-order axiomatic systems that contain a finite number of axiom schemata and a finite number of rules of inference. We show that the k-provability problem (...) for a Parikh system reduces to a unification problem that is essentially the unification problem for second-order terms. By solving various subproblems of this unification problem , we solve the k- probability problem for a variety of Parikh systems, including several formulations of Peano arithmetic. Our method for investigating the k-provability problem employs algorithms that compute and characterize unifiers. We give some examples of how these algorithms can be used to solve complexity problems other than the k-provability problem. (shrink)

This paper presents an algorithm that, given a finite set E of pairs of second-order monadic terms, returns a finite set U of ‘substitution schemata’ such that a substitution unifies E iff it is an instance of some member of U . Moreover, E is unifiable precisely if U is not empty. The algorithm terminates on all inputs, unlike the unification algorithms for second-order monadic terms developed by G. Huet and G. Winterstein. The substitution schemata in U use expressions which (...) represent sets of terms that differ only in how many times designated strings of function constants follow themselves. The substitution schemata may contain unresolved ‘identity restrictions’; consequently, the members of U generally do not characterize all the unifiers of E in a completely explicit way. The algorithm is particularly useful for investigating the complexity of formal proofs. (shrink)

A growing body of literature critical of ethics review boards has drawn attention to the processes used to determine the ethical merit of research. Citing criticism on the bureaucratic nature of ethics review processes, this literature provides a useful provocation for (re)considering how the ethics review might be enacted. Much of this criticism focuses on how ethics review boards _deliberate,_ with particular attention given to the lack of transparency and opportunities for researcher recourse that characterise ethics review processes. Centered specifically (...) on the conduct of ethics review boards convened within university settings, this paper draws on these inherent criticisms to consider the ways that ethics review boards might enact more communicative and deliberative practices. Outlining a set of principles against which ethics review boards might establish strategies for engaging with researchers and research communities, this paper draws attention to how _Deliberative communication_, _Engagement with researchers_ and the _Distribution of responsibility_ for the ethics review might be enacted in the day-to-day practice of the university human ethics review board. This paper develops these themes via a conceptual lens derived from Habermas’ (The theory of communicative action. Volume 1: Reason and the rationalization of society, 1984 ) articulation of ‘communicative action’ and Fraser’s (Social Text, 25(26), 56–80, 1990 ) consideration of ‘strong publics’ to cast consideration of the role that human ethics review boards might play in supporting university research cultures. _Deliberative communication_, _Engagement with researchers_ and the _Distribution of responsibility_ provide useful conceptual prompts for considering how ethics review boards might undertake their work. (shrink)

Partial functions are ubiquitous in both mathematics and computer science. Therefore, it is imperative that the underlying logical formalism for a general-purpose mechanized mathematics system provide strong support for reasoning about partial functions. Unfortunately, the common logical formalisms — first-order logic, type theory, and set theory — are usually only adequate for reasoning about partial functionsin theory. However, the approach to partial functions traditionally employed by mathematicians is quite adequatein practice. This paper shows how the traditional approach to partial functions (...) can be formalized in a range of formalisms that includes first-order logic, simple type theory, and Von-Neumann—Bernays—Gödel set theory. It argues that these new formalisms allow one to directly reason about partial functions; are based on natural, well-understood, familiar principles; and can be effectively implemented in mechanized mathematics systems. (shrink)

Simple type theory is a higher-order predicate logic for reasoning about truth values, individuals, and simply typed total functions. We present in this paper a version of simple type theory, called PF*, in which functions may be partial and types may have subtypes. We define both a Henkin-style general models semantics and an axiomatic system for PF*, and we prove that the axiomatic system is complete with respect to the general models semantics. We also define a notion of an interpretation (...) of one PF* theory in another. PF* is intended as a foundation for mechanized mathematics. It is the basis for the logic of, an Interactive Mathematical Proof System developed at The MITRE Corporation. (shrink)

Partial functions can be easily represented in set theory as certain sets of ordered pairs. However, classical set theory provides no special machinery for reasoning about partial functions. For instance, there is no direct way of handling the application of a function to an argument outside its domain as in partial logic. There is also no utilization of lambda-notation and sorts or types as in type theory. This paper introduces a version of von-Neumann-Bernays-Gödel set theory for reasoning about sets, proper (...) classes, and partial functions represented as classes of ordered pairs. The underlying logic of the system is a partial first-order logic, so class-valued terms may be nondenoting. Functions can be specified using lambda-notation, and reasoning about the application of functions to arguments is facilitated using sorts similar to those employed in the logic of the IMPS Interactive Mathematical Proof System. The set theory is intended to serve as a foundation for mechanized mathematics systems. (shrink)

Simple type theory is a higher-order predicate logic for reasoning about truth values, individuals, and simply typed total functions. We present in this paper a version of simple type theory, called PF*, in which functions may be partial and types may have subtypes. We define both a Henkin-style general models semantics and an axiomatic system for PF*, and we prove that the axiomatic system is complete with respect to the general models semantics. We also define a notion of an interpretation (...) of one PF* theory in another. PF* is intended as a foundation for mechanized mathematics. It is the basis for the logic of , an Interactive Mathematical Proof System developed at The MITRE Corporation. (shrink)

At the beginning of 2020, COVID-19 became a global problem. Despite all the efforts to emphasize the relevance of preventive measures, not everyone adhered to them. Thus, learning more about the characteristics determining attitudinal and behavioral responses to the pandemic is crucial to improving future interventions. In this study, we applied machine learning on the multi-national data collected by the International Collaboration on the Social and Moral Psychology of COVID-19 (N = 51,404) to test the predictive efficacy of constructs from (...) social, moral, cognitive, and personality psychology, as well as socio-demographic factors, in the attitudinal and behavioral responses to the pandemic. The results point to several valuable insights. Internalized moral identity provided the most consistent predictive contribution—individuals perceiving moral traits as central to their self-concept reported higher adherence to preventive measures. Similar was found for morality as cooperation, symbolized moral identity, self-control, open-mindedness, collective narcissism, while the inverse relationship was evident for the endorsement of conspiracy theories. However, we also found a non-negligible variability in the explained variance and predictive contributions with respect to macro-level factors such as the pandemic stage or cultural region. Overall, the results underscore the importance of morality-related and contextual factors in understanding adherence to public health recommendations during the pandemic. (shrink)

A current advance within the agricultural industry is the use of genetic engineering to produce novel crops for food production. This technology raises questions about how societies should position themselves with respect to genetically modified (GM) crop development and implementation; namely, how should the potentials and risks of this technology be evaluated? We argue that current methods to evaluate the risks and benefits of GM crops are inadequate and not conducive to the strategic development of this technology, where a way (...) to ameliorate technology assessments for GM crops is to include farmers in the research process of evaluating these crops prior to their commercialization. However, particularities concerning the ethical status of such research require special consideration and vigilance. For example, in such technology assessment initiatives, farmers would occupy both the roles of research participant and research investigator. Other particularities surface due to factors related to the nature of GM crops. These particularities are examined with reference to concepts drawn from the field of research ethics, namely informed consent, compensatory decisions, and issues of participant inclusion/exclusion. (shrink)

Two major episodes of farm protest have occurred in the past decade. In each case, protesting farmers have chosen to create new farm organizations rather than express their grievances through one of many existing farm interest groups. The result has been the development of a durable grassroots farm lobby, a hybrid mode of exercising political influence that combines features of interest group lobbying and social movement protest. The first episode saw the mobilization of the American Agriculture Movement (AAM), a nation-wide (...) protest organization devoted to achieving a federal guarantee of parity prices. When AAM's attempt to change federal farm policy failed, it was unable to sustain a high level of member mobilization or organizational activity. This failure is attributed to the lack of a stable organizational structure, the lack of durable membership incentives, and the counterproductive effects of disruptive protest tactics. The second episode of protest occurred in reaction to the farm-debt crisis of the 1980s. Protesting farmers organized numerous crisis groups to provide emergency services to financially distressed farmers. The crisis groups coalesced into the National Save the Family Farm Coalition (NSFFC) in order to exert influence over federal farm policy. It is argued that this coalition structure, along with membership incentives provided by crisis groups through their constituent service programs, may allow this latest farm movement to exert more considerable and durable influence over federal farm policy than AAM was able to do in the late 1970s. The problems of maintaining a national coalition of grassroots groups are discussed and evaluated. (shrink)

Ambitious targets to reduce greenhouse gas emissions from agriculture have been set by both national governments and their respective livestock sectors. We hypothesize that farmer self-identity influences their assessment of climate change and their willingness to implement measures which address the issue. Perceptions of climate change were determined from 286 beef/sheep farmers and evaluated using principal component analysis. The analysis elicits two components which evaluate identity, and two components which evaluate behavioral capacity to adopt mitigation and adaptation measures. Subsequent (...) Cluster Analyses reveal four farmer types based on the PCA scores. ‘The Productivist’ and ‘The Countryside Steward’ portray low levels of awareness of climate change, but differ in their motivation to adopt pro-environmental behavior. Conversely, both ‘The Environmentalist’ and ‘The Dejected’ score higher in their awareness of the issue. In addition, ‘The Dejected’ holds a high sense of perceived risk; however, their awareness is not conflated with an explicit understanding of agricultural GHG sources. With the exception of ‘The Environmentalist’, there is an evident disconnect between perceptions of agricultural emission sources and their contribution towards GHG emissions amongst all types. If such linkages are not conceptualized, it is unlikely that behavioral capacities will be realized. Effective communication channels which encourage action should target farmers based on the groupings depicted. Therefore, understanding farmer types through the constructs used in this study can facilitate effective and tailored policy development and implementation. (shrink)

AbstractAgroecosystems in the Midwestern United States are undergoing changes that pressure farmers to adapt their farming practices. Because farmers decide what practices to implement on their land, there are needs to understand how they adapt to competing demands of changes in global markets, technology, farm sizes, and decreasing rural populations. Increased understanding of farmer decision-making can also inform agricultural policy in ways that encourage farmer adoption of sustainable practices. In this research we adopt a grounded view of farmers (...) by interpreting their decision-making through their stories of everyday life. We use a narrative analysis to identify recurrent themes that characterize farmer decisions as active negotiations between the demands of efficiency in maximizing crop yields with a desire to steward land through past, present, and future generations. Together these narratives portray farmer decisions as a place-making process that seeks compatibility among distinct aspirations for their land. (shrink)

Eleven organic and two conventionalSwedish livestock farmers and two initiators(non-farmers who took part in shaping earlyorganic livestock production in Sweden) wereinterviewed, using a semi-structured method.Respondents were selected through purposive andheterogeneous sampling with regard toconversion year, type of production, and sizeof farm. Conversion of the animal husbandrytook place between 1974 and 2000. All but twohad positive attitudes towards organiclivestock production and saw it as a wayforward for Swedish livestock production,although especially the latecomers did notperceive it as the only alternative. There wasa (...) distinct difference in values between thepioneers, who converted their farms early, andthose converting later. Pioneer farmers sharedthe values of the initiators. They expressed amore ecocentric view emphasizing a systemicapproach, and displayed a more holisticapproach to questions, interpreting them inlarger frameworks. They also had a moreecocentric understanding of animal welfare. Thelater the conversion, the more important theeconomic reason for conversion appeared to be.Those converting later also tended to have amore superficial relationship to organicprinciples. However, the farmers also tended tobe more influenced by organic values the longerthey worked with organic farming. (shrink)

Genetically modified cassava is currently being developed to address problems of diseases that threaten the food security of farmers in developing countries. The technologies are aimed at smallholder farmers, in hopes of reducing the vulnerability of cassava production to these diseases. In this paper we examine barriers to farmers’ voice in the development of GM cassava. We also examine the role of a translational research process to enhance farmers’ voice, to understand the sources of vulnerability farmers in a group in (...) Kenya’s Coast face, and to determine if their concerns are consistent with those of the scientists in agriculture addressing farmers’ needs. A two-way communication participatory process provided insights into the complex vulnerability context of farmers, their primary concerns with processing and markets of cassava in order to improve livelihoods, the lack of networks with two way communication flows, and the lack of information on GM technologies. The translational research engaged farmers and scientists in an iterative process where scientists are learning what farmers need, and farmers are learning about the potential benefits and risks from GM technologies, while at the same time expressing their concerns. (shrink)

First, the thorny problem of locating the Midwest is treated. Second, the ancient Stoics’ understanding of nature is proposed as a fertile field of ecological wisdom. The significance of nature in Stoicism is explained. Stoic philosophers (big-S Stoics) are distinguished from stoical non-philosophers (small-s stoics). Nature’s lessons for living a good Stoic life are drawn. Are such lessons too theoretical to provide practical guidance? This worry is addressed by examining the examples of Cincinnatus and Cato the Elder—ancient Romans lauded for (...) their virtues who worked the land. They exhibited the virtues of civic responsibility, justice, self-sufficiency, parsimony, perseverance, equanimity, modesty, and respect for limits—an agrarian virtue dear to Wendell Berry. Agrarianism views rural society as superior to urban society and the independent farmer as superior to the paid worker. Reflection on the virtues of stoical Roman agrarians suggests that features of Roman Stoic agrarianism resonate with a contemporary instantiation of Stoicism in the Midwest. The main thesis is that Midwest Stoic agrarianism (MSA), guided by an array of earthy virtues, promotes agricultural practices that harmonize with nature and support living in agreement with nature, while rejecting agricultural practices contrary to nature and propelled by vice. MSA endorses, e.g., locally sourced, sustainably grown crops instead of CAFOs. MSA tackles the ecological and sociopolitical pressures confronting Midwest farmers in the Anthropocene and can fortify environmental virtue ethics beyond this region. (shrink)

Near the end of Eyrbyggja saga þórir asks Óspak and his men where they had gotten the goods they were carrying. Óspak said that they had gotten them at þambárdal. “How did you come by them?” said þórir. Óspak answered, “They were not given, they were not paid to me, nor were they sold either.” Óspak had earlier that evening raided the house of a farmer called Álf and made away with enough to burden four horses. And this was (...) exactly what he told þórir when he wittily eliminated the other modes of transfer by which he could have acquired the goods. There is no question of thievery here. An Icelandic thief had to conceal the taking, and Óspak was not so craven. His taking was open and notorious, and þórir did not fail to conceive his meaning. This was a rán, an open, hostile taking. (shrink)

Throughout the developing world, it is a well-documented fact that women farmers tend to get lower yields than their male counterparts. Typically this is attributed to disproportionate access to high-quality inputs and labor, with some even arguing there could be a skills-gap stemming from unbalanced access to training and education. This article examines the gender-based yield gap in the context of Zambian maize producers. In addition to the usual drivers, we argue that Zambia’s patriarchal and multi-tiered land distribution system could (...) disfavor women with respect to accessing quality soils. We are uniquely able to control for soil characteristics using farm data from a sample of 1573 fields with accompanying soil analysis. We find an expected difference in yields, but no evidence of a gap in unobserved characteristics, like skill, after controlling for access to inputs, especially quality soil, suggesting women are indeed disproportionately disadvantaged. We discuss how our findings could be used to develop self-targeting policy interventions that could empower women and would be consistent with the government’s stated equity goals. (shrink)

To mitigate animal suffering under industrial farming conditions, biotechnology companies are pursuing the development of genetically disenhanced animals. Recent advances in gene editing biotechnology have brought this to reality. In one of the first discussions of the ethics of disenhancement, Thompson argued that it is hard to find compelling reasons to oppose it. We offer an argument against disenhancement that draws upon parallels with human disenhancement, ecofeminism’s concern with the “logic of domination,” and a relational ethic that seeks to preserve (...) a meaningful relationship between farmers and their animals. In addition, we respond to two arguments in favor of animal disenhancement—one grounded in the non-identity problem and one that argues disenhancement is the best we can do to protect animal well-being right now. We argue that animal disenhancement does not address the fundamental issue of oppression of animals in the context of contemporary animal agriculture. Therefore, we conclude that animal disenhancement is not nearly as valuable as it might appear initially. (shrink)

Floods generate both risks and benefits. In Langhorne Creek, South Australia, a historically-embedded system of shared floodwater management exists among farmers, who rely on semi-regular flood inundations as part of the region’s hydrosocial terroir – a dynamic conjunction of water, landscape, social relations and agricultural practice. Unruly floods coexist with a heavily regulated and precisely measured system of modern water management for viticultural irrigation across the region. Since the mid-twentieth century, groundwater extraction and new pipeline schemes have linked Langhorne Creek (...) to the Murray Darling Basin water management system, which has displaced flooding as the primary source of irrigation water. The associated modernist shift towards the rationalization of water as a measurable resource has acted to sideline flood irrigation. Yet, floods maintain important viticultural, ecological and social roles in Langhorne Creek, adding to the flexibility and resilience of the region in response to water management challenges. The system involves technological and infrastructural components, such as flood gates and channels, but also relies upon the cooperation and coordination of community members. Local vignerons suggest that flood irrigation is environmentally as well as economically beneficial, rejuvenating riparian wetlands along watercourses. A more formal acknowledgement of the specific regional experiences of water management in a wine region like Langhorne Creek helps to fill a gap between emplaced and hydrosocial understandings of flood irrigation and broader assumptions about flooding as wasteful and inefficient. (shrink)

Outside (though not completely so) the circuit of the international division of labor, there are people whose consciousness we cannot grasp if we close off our benevolence by constructing a homogeneous Other referring only to our own place in the seat of the Same or the Self. Here are subsistence farmers, unorganized peasant labor, the tribals, and the communities of zero workers on the street or in the countryside. To confront them is not to represent (vertreten) them but to learn (...) to represent (darstellen) ourselves. Spivak (1988, 288-9). (shrink)

We consider the implications of trends in the number of U.S. farmers and food imports on the question of what role U.S. farmers have in an increasingly global agrifood system. Our discussion stems from the argument some scholars have made that American consumers can import their food more cheaply from other countries than it can produce it. We consider the distinction between U.S. farmers and agriculture and the effect of the U.S. food footprint on developing nations to argue there might (...) be an important role for U.S. farmers, even if it appears Americans don’t need them. For instance, we may need to protect U.S. farmland and, by implication, U.S. farmers, for future food security needs both domestic and international. We also explore the role of U.S. farmers by considering the question of whether food is a privilege or a right. Although Americans seem to accept that food is a privilege, many scholars and commentators argue that, at least on a global scale, food is a right, particularly for the world’s poor and hungry. If this is the case, then U.S. farmers might have a role in meeting the associated obligation to ensure that the poor of the world have enough food to eat. We look at the consequences of determining that food is a right versus a privilege and the implications of that decision for agricultural subsidies as well as U.S. agriculture and nutrition policies. (shrink)

PC Wars: Politics and Theory in the Academy addresses the very issue of political correctness and the current skirmishes in the culture wars. It includes statements from many of our leading contemporary public intellectuals, including Joan Wallach Scott, Michael Be;rube;, Bruce Robbins, Henry Giroux, and Gerald Graff. The collection marks a watershed in the debate about "pc" in that it presents serious considerations and analyses of the factors, causes, and consequences of the culture wars. Carefully examining the construction of "pc," (...) PC Wars analyses political correctness by focusing on the mass media, class politics, and the ideology of managerial democracy. It places the disputes around "pc" in the context of contemporary developments in critical and cultural theory and the current backlash against theory, manifested in the recent attacks on Marxism, feminism and deconstruction. The book also scrutinizes the undercurrents of anti-intellectualism and anti-professionalism which have tended to create a fertile ground for the "pc" hysteria. Offering much more than slogans and slinging arrows, PC Wars provides a spirited and critical look at the reaction, ideology, and political forces that have coalesced around the term. Contributors: Michael Be;rube;, Reed Way Dasenbrock, Frank Farmer, Henry Giroux, Gerald Graff, Darlene Hantzis and Devoney Looser, John S. Howard and James M. Lang, Tom Lewis, James Neilson, Christopher Newfield, Richard Ohmann, Burce Robbins, Barry Sarchett, Joan W. Scott, Michael Sprinker, Jeffrey Williams. (shrink)

This spectacular collection of photographs takes the viewer on a stroll through the heart of Madison, around the Capitol Square and down renowned State Street, with stops at some of the most recent additions to the city s skyline, including the Monona Terrace Convention Center and the Overture Center for the Arts. Then it s on toward the University of Wisconsin campus, with its historic buildings, walkways, and the Memorial Union Terrace, one of the city s best-known spots for students (...) and locals to meet, eat and listen to live music. The tour continues through Madison s diverse neighborhoods, visiting numerous ethnic restaurants, music festivals and the one Madison s most famous traditions, the Dane County Farmers Market. The visual journey finishes with visits to the breathtaking parks and gardens scattered throughout the city.". (shrink)

With a vast majority of the land in the Driftless Region of the Midwestern United States dedicated to agricultural production, the future of farming has significant economic, social, recreational, agricultural, and ecological implications. An important literature stream has developed on ways agriculture can change to impact both human and ecological communities positively. In this study, we examine the processes and extent to which community narratives assert and inform regional identities that shape the meaning of being a good farmer. Using (...) a mixed methods approach, we examine what farmers consider good farming and how they utilize community narratives to assert their perspective of good farming. Employing a correlational analysis, we examined the relative importance of the four dimensions of good farming (productivist, conservationist, civic-minded, and naturalist). In addition, we used narrative analysis to explore the development of community narratives that assert a multi-dimensional view of good farming. Data for this study was collected through 21 semi-structured interviews with farmers, two focus groups of farmers, and a survey of farmers with 82 survey participants. The mean scores for conservationist, civic-minded, and naturalist dimensions were significantly higher than those for productivists. There was no significant correlation between the productivists dimension and the three other dimensions of good farming. Through analysis of transcripts, we identified a community narrative that actively problematized a dominant cultural narrative centered on production agriculture. Collectively, a community narrative is emerging in the Driftless Region that sought to normalize agricultural practices that promote profitable farms, vibrant communities, and a wide array of ecosystem services. (shrink)

Cahokia, the largest pre-European settlement in North America, was situated on the Middle Mississippi River floodplain and flourished for approximately three hundred years from the 10th century AD onward. The site was favorably located from an environmental standpoint, being proximal to a diversity of microhabitats including expanses of open water and marshes from which the essential, renewable fish protein could be procured. More importantly, the largest local zone of soils characterized as optimal for prehistoric hoe cultivation lay immediately to the (...) east. Here, on the floodplain and along its bordering alluvial fans, the large maize outfields were situated, while the multi-crop house gardens were placed within the habitation zone on soils that had often been culturally enriched by prior occupation. As successful as this strategy might have been for small, dispersed populations in such a plentiful environment, nucleation of large numbers of people at Cahokia provided a different adaptive context that ultimately led to ruinous consequences. The seeds for the city's destruction centered anthropogenically produced environmental degradation. Demands on wood resources for fuel and construction were enormous and agricultural field clearance was in forested rather than prairie settings. The resultant watershed deforestation produced greatly increased rates of erosion, runoff, and unseasonable downstream flooding during the summer growing season. The economic and social consequences of declining production and localized crop failures proved disastrous for this city of farmers. (shrink)

In response to the chronic overuse and misuse of pesticides in agriculture, governments in Southeast Asia have sought to improve food safety by introducing public standards of good agricultural practices (GAP). Using quantitative farm-level data from an intensive horticultural production system in northern Thailand, we test if fruit and vegetable producers who follow the public GAP standard use fewer and less hazardous pesticides than producers who do not adhere to the standard. The results show that this is not the case. (...) By drawing on qualitative data from expert interviews and an action research project with local litchi (“lychee”) producers we explain the underlying reasons for the absence of significant differences. The qualitative evidence points at poor implementation of farm auditing related to a program expansion that was too rapid, at a lack of understanding among farmers about the logic of the control points in the standard, and at a lack of alternatives given to farmers to manage their pest problems. We argue that by focusing on the testing of farm produce for pesticide residues, the public GAP program is paying too much attention to the consequences rather than the root cause of the pesticide problem; it needs to balance this by making a greater effort to change on-farm practices. (shrink)

Previous research addressing the association between leisure and happiness has given rise to the hypothesis that informal social activities might contribute more to happiness than solitary activities. In the current study, we tested how the two types of leisure—social and solitary—contribute to a person’s subjective sense of well-being. For the empirical estimate, we used four consecutive quarters of data collected from 533 people over the age of 16, from 13 Tsimane’ hunter-farmer villages in the Bolivian Amazon. Results suggest that (...) only social, not solitary, leisure has a positive and statistically significant association with subjective well-being. The association between solitary leisure and subjective well-being was negligible or negative. Future research should focus on emic definitions of social and solitary time, for solitary time might not always be equivalent to leisure and productive group activities might substitute for social leisure. (shrink)

The development and utility of genetically modified crops for smallholders around the world is controversial. Critical questions include what traits and crops are to be developed; how they can be adapted to smallholders’ ecological, social and economic contexts; which dissemination channels should be used to reach smallholders; and which policy environments will enable the greatest benefits for smallholders and the rural poor. A key question is how the voices of smallholders who have experience with or desire to use GM technologies (...) enter the larger debate. Africa has the greatest number of smallholders and poor with the least exposure to GM crops. Because of the well-established use of GM crops in South Africa by commercial farmers, we formed a community of practice involving smallholders, extension, researchers, non-profits and agribusiness in KwaZulu-Natal to examine the conditions under which GM crops are used by smallholders, how smallholders interact with GM technologies and what insights smallholders and other stakeholders can provide regarding these questions. One of the advantages of the CoP approach is that it brings stakeholders together in a non-hierarchical way that encourages new ways of thinking and new partnerships. Such interaction around a specific project can enhance the voice of smallholders in a variety of ways. In our project, smallholder participants have increased their knowledge and can make better decisions about GM technologies, which had been barriers for them. Notably, they have also improved their knowledge of maize production practices, accessed new practice networks, and met new researchers and resource providers. They are now being integrated into these networks in a way that should improve their livelihoods and make the wants and needs of smallholders better known. Such knowledge and experience has improved their voice in agriculture and rural development discussions. (shrink)

Burning fossil fuel in the North American continent contributes more to the CO2 global warming problem than in any other continent. The resulting climate changes are expected to alter food production. The overall changes in temperature, moisture, carbon dioxide, insect pests, plant pathogens, and weeds associated with global warming are projected to reduce food production in North America. However, in Africa, the projected slight rise in rainfall is encouraging, especially since Africa already suffers from severe shortages of rainfall. For all (...) regions, a reduction in fossil fuel burning is vital. Adoption of sound ecological resource management, especially soil and water conservation and the prevention of deforestation, is important. Together, these steps will benefit agriculture, the environment, farmers, and society as a whole. (shrink)