6,872 research outputs found

    Ecological and economic benefits of integrating sheep into viticulture production

    Get PDF
    The integration of crop and livestock systems has been recognized for its potential to reduce the environmental impacts associated with agriculture and improve farmer livelihoods. However, to date, most research has focused on the integration of cattle into crop and pasture systems. Here we examine the integration of sheep into vineyards and assess farmers’ perceived benefits and costs of the practice. Viticulture expansion has led to significant land use change in recent years and new environmental challenges, particularly with respect to herbicide use. Sheep integration into vineyards offers the potential to utilize the synergies of both systems to reduce external inputs, promote soil health, and increase farmer profit. Our study focuses in New Zealand, the world’s 15th largest wine producer, particularly in Marlborough, which produces 75% of the country’s wine. As a result, the case study is an excellent representation of New Zealand viticulture, while also providing unique insights into a novel practice. Using a semi-structured interview and survey, we interviewed fifteen farmers representing five percent of total New Zealand wine production to examine ecological and economic benefits of sheep integration in viticulture systems. We find that seasonal integration of sheep during vine dormancy is common, while integration during the growing season is rare. Overall, farmers perceive significantly more benefits than challenges with the integration of sheep into vineyards, particularly reduced mowing (100% of farmers) and herbicide use (66% of farmers). On average, farmers reported 1.3 fewer herbicide applications annually, saving US 56 per hectare. As well, farmers indicated they were doing 2.2 fewer mows annually saving US 64 per hectare. These results suggest that wide-scale adoption of seasonal integration of sheep and viticulture can provide large ecological benefits and higher profitability vis-à-vis conventional viticulture practices; however, further integration of the two systems may provide even greater benefits not currently realized

    Review: Do the Different Sensory Areas within the Cat Anterior Ectosylvian Sulcal Cortex Collectively Represent a Network Multisensory Hub?

    Get PDF
    Current theory supports that the numerous functional areas of the cerebral cortex are organized and function as a network. Using connectional databases and computational approaches, the cerebral network has been demonstrated to exhibit a hierarchical structure composed of areas, clusters and, ultimately, hubs. Hubs are highly connected, higher-order regions that also facilitate communication between different sensory modalities. One region computationally identified network hub is the visual area of the Anterior Ectosylvian Sulcal cortex (AESc) of the cat. The Anterior Ectosylvian Visual area (AEV) is but one component of the AESc that also includes the auditory (Field of the Anterior Ectosylvian Sulcus - FAES) and somatosensory (Fourth somatosensory representation - SIV). To better understand the nature of cortical network hubs, the present report reviews the biological features of the AESc. Within the AESc, each area has extensive external cortical connections as well as among one another. Each of these core representations is separated by a transition zone characterized by bimodal neurons that share sensory properties of both adjoining core areas. Finally, core and transition zones are underlain by a continuous sheet of layer 5 neurons that project to common output structures. Altogether, these shared properties suggest that the collective AESc region represents a multiple sensory/multisensory cortical network hub. Ultimately, such an interconnected, composite structure adds complexity and biological detail to the understanding of cortical network hubs and their function in cortical processing

    The Effects of a Test-Taking Skills Intervention on Test Anxiety and Test Performance in 4th Graders

    Get PDF
    Increases in standardized testing have been accompanied by increased reports of test anxiety in younger students. School-based test anxiety interventions can be implemented to decrease test anxiety and improve test performance. Skill-based interventions have effectively addressed both of these variables; however, the research has primarily targeted secondary and university students. The purpose of the current study was to determine if a test-taking skills intervention would decrease test anxiety and improve test performance in 4th grade students. Results indicated that the test-taking skills intervention resulted only in a minor decrease in test anxiety that maintained at 1-month follow-up. Effects on test performance were mixed immediately following the intervention, and test performance was equivalent to baseline levels at the conclusion of the study. Limitations of this study and recommendations for future research are included

    Majority of Rural Residents Compost Food Waste: Policy and Waste Management Implications for Rural Regions

    Get PDF
    A growing number of municipalities and states are implementing household food waste diversion efforts such as curbside compost programs, though these programs present challenges for participation and implementation. While many food waste diversion programs are occurring in densely populated regions, understanding food waste management in rural regions is less studied. This research examines the food waste perceptions and current and future food waste management behaviors of residents in Vermont, one of the most rural U.S. states, through a representative telephone survey of Vermont residents (n = 583) in 2018. The findings suggest 55% of residents support banning food waste from landfills. Furthermore, 72% of residents compost at least some of their food waste currently and more than 75% anticipate doing so in the future. Conversely, 34% of residents anticipate using the garbage or a curbside compost pickup program in the future with urban county residents, renters, and those currently using garbage most interested in curbside programs. The majority of respondents were unwilling to pay anything additional for curbside compost pickup programs. These results suggest food waste management strategies in rural regions may be different than densely populated areas, particularly for programs that may require significant investments and have limited participation given the popularity of home composting. As a result, greater investment in education and infrastructure for backyard composting may be an important component of rural food waste management

    ASD Parent guidelines: Informed conversations at the IEP Table

    Get PDF
    This criterion-based study was conducted on research of an autism spectrum disorder diagnosis, the different severity levels now included in the DSM5, and evidence-based accommodations that allow students with autism to have a successful educational experience, in order to create Parent Guidelines: Informed Conversations at the IEP Table. The guide provides descriptions and examples of the criteria used to make an ASD diagnosis and the different severity levels. The accommodations found were categorized into four areas that address common deficits for students with autism: behavior, social-communication, academic, and sensory. The information was gathered and presented in a guide for parents of children with autism. The guide informs parents how to use and interpret the language established within a spectrum diagnosis and to articulate best practices regarding accommodations that have been proven to increase the possibility of behavioral, social, and academic success for their child. The parent guide could be used to give parents a sense of where their child is on the spectrum. In addition, the parents can use the description and examples of the three levels of severity, to properly target the areas of deficit when deciding on accommodations. As parents determine what deficits might become a barrier for their child\u27s educational experience, the guide will provide accommodations to overcome those areas. Having this knowledge will give parents the tools so that they can make the best decisions for their child, allowing them to play an integral role in their child\u27s education during Individual Education Plan (IEP) meetings

    A feasibility study for advanced technology integration for general aviation

    Get PDF
    An investigation was conducted to identify candidate technologies and specific developments which offer greatest promise for improving safety, fuel efficiency, performance, and utility of general aviation airplanes. Interviews were conducted with general aviation airframe and systems manufacturers and NASA research centers. The following technologies were evaluated for use in airplane design tradeoff studies conducted during the study: avionics, aerodynamics, configurations, structures, flight controls, and propulsion. Based on industry interviews and design tradeoff studies, several recommendations were made for further high payoff research. The most attractive technologies for use by the general aviation industry appear to be advanced engines, composite materials, natural laminar flow airfoils, and advanced integrated avionics systems. The integration of these technologies in airplane design can yield significant increases in speeds, ranges, and payloads over present aircraft with 40 percent to 50 percent reductions in fuel used

    Agricultural Innovation for Climate Change Mitigation and Adaptation: A Comparison of New Zealand and California Farmers and Policies

    Get PDF
    In response to agriculture\u27s vulnerability and contribution to climate change, many governments are developing initiatives that promote the adoption of mitigation and adaptation practices among farmers. Since most climate policies affecting agriculture rely on voluntary efforts by individual farmers, success requires a sound understanding of the factors that motivate farmers to change practices. Recent evidence suggests that past experience with the effects of climate change and the psychological distance associated with people\u27s concern for global and local impacts can influence environmental behavior. This work examines how farmer\u27s perceptions and psychological distance of climate change, environmental policy perceptions, and perceived impacts influence the adoption of adaptation and mitigation behaviors and support for climate change policies across California and New Zealand. A total of 11 interviews and 162 surveys were conducted in Yolo County, California and 37 interviews and 490 surveys were conducted in Marlborough and Hawke\u27s Bay, New Zealand. I used multiple mediation models and structural equation models to understand the relationship of a variety of factors that influence climate change behaviors and policy support. Overall, I found that farmer\u27s experiences with specific climate change events (water in California, water in Hawke\u27s Bay, and water and temperature impacts and future concerns) were the most salient in affecting their adoption of adaptation practices. Conversely, climate change beliefs were the most direct in affecting the adoption of mitigating behaviors. I developed a limiting factors theory based on this evidence to suggest that a farmer\u27s future adoption of adaptation behaviors will be strongly affected by the most limiting factor within their systems (in these cases, water or temperature). Furthermore, I demonstrated the effect of environmental policy perceptions and the drivers of climate change policy support across both regions. In California, in part because environmental policies were perceived to be psychologically close to farmers, I found that farmer\u27s past experiences with existing environmental policies had a larger influence on their climate change beliefs, risk perceptions and climate change policy support than their experiences with biophysical climate change impacts. Similarly, in New Zealand, I found that climate change policy support was heavily affected by climate change belief, and risk perceptions, but also strongly influenced by farmer\u27s perceptions of the costs of climate change policies and the perceived capacity that the farmer possessed about their ability to reduce their own emissions. Overall, this work suggests that farmer\u27s perceptions of climate change events, beliefs and risk perceptions are crucial precursors to predicting the adoption of adaptation and mitigation behaviors. However, environmental policy perceptions, cost perceptions and perceived capacity are also important for predicting support for climate change policies. Additional future work can apply these theories and approaches in other regions of agricultural production to understand if there are universal predictors for climate change behaviors

    A Guatemalan Soycow Cooperative: Is the Whole Greater than the Sum of its Parts?

    Get PDF
    Teaching Notes available upon request: [email protected]; Author video:http://www.youtube.com/user/ifamr1?feature=mhum#p/u/8/FhUZu2lt6NsSoycow, cooperative, Guatemala, teaching case, Agribusiness, Q10,
    • …
    corecore