3,846 research outputs found
Moving Into College
I\u27m here, so what? All the years, and all the letters of wish you were back, all the homesick hopes, and all the train fare can never bring me home again. College is my story and I\u27m stuck with it
Effects of 12, 13 dibutyrate (PDBu) on resting and capsaicin-stimulated glutamate release in adult rat dorsal root neurons in culture
This study was conducted for G594, Guided Research in Medical Science. It was submitted in fulfillment of the requirements for the Master of Science in Medical Science degree at Indiana University School of Medicine.This investigation explored the role of PKC as an activator of VR1 through the use of capsaicin, a natural ligand for VR1, and the PKC activating phorbol ester 12,13 dibutyrate (PDBu). Direct effects of 30nM, 300nM, and 3000nM capsaicin and 0nM, 0.3nM, 1.0nM, 3.0nM, 10nM, and 30nM PDBu on glutamate release from adult rat dorsal root ganglia (DRGs) were examined. Based on those observations, the concentration of capsaicin causing the least glutamate release and the concentrations of PDBu that did not elicit significant glutamate release were selected to study effects of capsaicin on same cell type acutely sensitized with the selected concentrations of PDBu. It was found that glutamate released from combinations of 30nM capsaicin and 1.0nM PDBu (p<0.036) as well as 30nM capsaicin and 3.0nM PDBu (p<0.01) were statistically significant from the stimulation control—which was 30nM capsaicin alone
Altruism, Cooperation, and Efficiency: Agricultural Production in Polygynous Households
Altruism among family members can, in some cases, inhibit cooperation by increasing the utility that players expect to receive in a non-cooperative equilibrium. To test this, we examine agricultural productivity in polygynous households in West Africa. We find that cooperation is greater – production is more efficient – among co-wives than among husbands and wives because co-wives are less altruistic towards each other. The results are not driven by scale effects or self-selection into polygyny. Nor can they be explained by greater propensity for cooperation among women generally or by the household head acting as an enforcement mechanism for others' cooperative agreements.altruism, non-cooperative behavior, household bargaining, polygyny, Africa
Innovation in services: corporate culture and investment banking
The article discusses service innovation in the investment banking industry. Service industry innovations differ from innovations in industries that produce physical products because they rarely have intellectual property and patent protections. However, investment banking services are typically a series of interrelated businesses such as consulting, wealth management and accounting, and innovations require a business wide coordinated approach. The authors argue that a strong corporate culture can support rather than hinder innovation. The creation of such a culture requires strong leadership and an emphasis on innovation in hiring and promotions
Cohomogeneity-one G2-structures
G2-manifolds with a cohomogeneity-one action of a compact Lie group G are
studied. For G simple, all solutions with holonomy G2 and weak holonomy G2 are
classified. The holonomy G2 solutions are necessarily Ricci-flat and there is a
one-parameter family with SU(3)-symmetry. The weak holonomy G2 solutions are
Einstein of positive scalar curvature and are uniquely determined by the simple
symmetry group. During the proof the equations for G2-symplectic and
G2-cosymplectic structures are studied and the topological types of the
manifolds admitting such structures are determined. New examples of compact
G2-cosymplectic manifolds and complete G2-symplectic structures are found.Comment: 23 page
SOME TESTS OF THE ECONOMIC THEORY OF COOPERATIVES: METHODOLOGY AND APPLICATION TO COTTON GINNING
Little progress has been made in testing the often conflicting hypotheses generated from theoretical research on cooperatives. This paper addresses the deficiency by describing and applying (to California cotton ginning cooperatives) a methodology to test key hypotheses concerning (a) cooperativesÂ’ price-output equilibrium, (b) allocative efficiency, and (c) utilization of capital inputs. The empirical results (a) are consistent with predictions from the game theory model of cooperative behavior, (b) reject the null hypothesis of absolute allocative efficiency, and (c) indicate absolute overutilization of capital inputs among the sample cooperatives.Agribusiness, Crop Production/Industries,
A new fabrication method for precision antenna reflectors for space flight and ground test
Communications satellites are using increasingly higher frequencies that require increasingly precise antenna reflectors for use in space. Traditional industry fabrication methods for space antenna reflectors employ successive modeling techniques using high- and low-temperature molds for reflector face sheets and then a final fit-up of the completed honeycomb sandwich panel antenna reflector to a master pattern. However, as new missions are planned at much higher frequencies, greater accuracies will be necessary than are achievable using these present methods. A new approach for the fabrication of ground-test solid-surface antenna reflectors is to build a rigid support structure with an easy-to-machine surface. This surface is subsequently machined to the desired reflector contour and coated with a radio-frequency-reflective surface. This method was used to fabricate a 2.7-m-diameter ground-test antenna reflector to an accuracy of better than 0.013 mm (0.0005 in.) rms. A similar reflector for use on spacecraft would be constructed in a similar manner but with space-qualified materials. The design, analysis, and fabrication of the 2.7-m-diameter precision antenna reflector for antenna ground tests and the extension of this technology to precision, space-based antenna reflectors are described
Be ready to scout - attend Field Crop Scout School
Field Crop Scout School will help new scouts to understand principles and techniques of scouting. The one-day school will be held Saturday March 9 at the Scheman building at the Iowa State Center in Ames. The sessions will cover normal growth and development of corn, soybean, and alfalfa; how to identify common weeds, diseases, and insects; general soil information; and discussion of common crop problems. Most sessions will include hands-on activities. Scouts will receive a notebook of publications and information to help them scout effectively in the field
The Transformation in Who is Expected to Work in the United States and How it Changed the Lives of Single Mothers and People with Disabilities
In the 1990s, social expectations of single mothers shifted towards the notion that most should, could, and would work, if given the proper incentives. This shift in expectations culminated in the passage of the Personal Responsibility and Work Opportunity Reconciliation Act in 1996, commonly known as welfare reform. As a result, ADFC/TANF caseloads fell along with cash transfers to single mothers who did not work. A decade later the earnings and household income of single mothers are significantly higher and moving more in synch with the U.S. economy. In stark contrast and despite espoused goals to the contrary, public policies toward working age men and women with disabilities have remained imbued with the notion that most cannot and thus, would not work, no matter what incentives they faced. As a result, SSDI/SSI expenditures and caseloads have increased and the earnings and household income of working age men and women with disabilities have fallen, leaving them even further behind the average working age American than they were a decade ago. Using data from the Current Population Survey we follow the economic well-being and employment of single mothers and working age men and women with disabilities over the past two major United States business cycles (1982-1993 and 1993-2004) and show that despite the dramatic decline in AFDC/TANF funding, single mothers’ economic well-being, labor earnings and employment all have risen substantially. In contrast, despite the dramatic increase in SSDI/SSI funding, the economic wellbeing of working age men and women with disabilities remained stagnant, as their labor earnings and employment plummeted.
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