Factor Price Disparity in the Feeder Cattle Market and Retained Ownership Decision Making: An Application of Farm-Level Feed-Out Data

This study uses farm-level data from a university feed-out program to evaluate how the value of feeder cattle ultimately realized through finishing and grid pricing differs from their market value at public auction. Results indicate that uncertainty related to feedlot performance, final carcass merits, and fed cattle prices likely contribute to significant risk premiums in the feeder cattle market. This is consistent with the theory of factor price disparity. This result indicates that producers of cattle with known feedlot performance and/or carcass potential may be better off retaining ownership of their calves or marketing them in a way that communicates the information that is known about their potential performance directly to the buyer.Marketing,

Vortices and turbulence in trapped atomic condensates

After over a decade of experiments generating and studying the physics of quantized vortices in atomic gas Bose-Einstein condensates, research is beginning to focus on the roles of vortices in quantum turbulence, as well as other measures of quantum turbulence in atomic condensates. Such research directions have the potential to uncover new insights into quantum turbulence, vortices and superfluidity, and also explore the similarities and differences between quantum and classical turbulence in entirely new settings. Here we present a critical assessment of theoretical and experimental studies in this emerging field of quantum turbulence in atomic condensates

Land tenure and the adoption of agricultural technology in Haiti:

There has long been an active debate in Haiti - as in many other developing countries - over whether or not the customary tenure system constrains technology adoption and agricultural development, and whether cadaster and land titling should be national priorities. This paper contributes to this debate by reviewing and interpreting the body of literature and new empirical evidence concerning the relationship between land tenure and the adoption of technology in rural Haiti. The findings suggest that (a) formal title is not necessarily more secure than informal arrangements, (b) informal arrangements based on traditional social capital resources assure affordable and flexible access to land for most people, and (c) perceived stability of access to land-via stability of personal and social relationships-is a more important determinant of technology adoption than mode of access. The paper concludes that there is no definitive relationship between tenure and technology adoption by peasants; peasants are preoccupied more by political and economic insecurity than insecure tenure; and rather than tinkering with formalizing tenure, policy makers should prioritize other more fundamental rural sector reforms. The paper ends by considering some of the implications for theory and suggests several avenues for future research on land policy.

Chewing up the wood-wide web : selective grazing on ectomycorrhizal fungi by collembola

This work was supported by the Natural Environment Research Council (NE/C507510/1). We thank S. Van der Linde, A. Sim, L. Shivraj, and P. Parkin.Peer reviewedPublisher PD

The Professional Quality of Life of Counselors in the U.S. Gulf State of Mississippi Following Multiple Traumatic Events

This dissertation was an exploratory research study using a cross-sectional survey design to examine the impact of ecological, environmental, psychological, and financial hardship on counselors of the U.S. Gulf Region. Since 2005, the U.S. Gulf Region, unlike any other region of the United States, has faced multiple disasters including Hurricanes Katrina, Rita, Ike and Gustav (Walsh, 2010), the Great Recession (Conant, 2010), and the largest ecological disaster in the history of the United States, the BP Oil Spill (Gray, 2010). The purpose of this study was to explore the attitudes and characteristics of counselors in one U.S. Gulf State, specifically Mississippi, to obtain valuable information about compassion fatigue and compassion satisfaction of counselors as measured by the Professional Quality of Life (ProQOL) (Stamm, 2009). The researcher used a demographic survey and the ProQOL (Stamm) for analyses. The researcher collected the ProQOL (Stamm) sub-scale scores of 282 Mississippi counselors who attended the 60th Annual Mississippi Counseling Conference. The counselors recorded high compassion satisfaction scores, low burnout scores and low secondary traumatic stress scores. Additionally, the researcher used one-way MANOVAs to examine the main effects of counselor characteristics such as educational level, gender, geographic location, self-care methods, and years of experience on the ProQOL (Stamm) sub-scale means of compassion satisfaction, burnout, and secondary traumatic stress. The researcher found two statistically significant differences in gender and years of experience. Male participants’ burnout and secondary traumatic stress scores were significantly less than female participants’ burnout and secondary traumatic stress scores. Participants with 1-10 years of experience recorded statistically significant higher burnout scores and lower compassion satisfaction scores than participants with less than one year of experience, 10-20 years of experience, and more than 20 years of experience. In contrast to assumptions related to the ecological, environmental, psychological, and financial hardship present in this region, high levels of satisfaction was found in counselors who serve this region. The researcher found that despite the impact of these multiple traumatic events these counselors were satisfied with their work

Oral history interview transcript with Virginia White

Oral history interview transcript with Virginia White. Her topics include the Cheney City Council and the Cheney Community Service Council. Interviewer: Janet Anderso

Operator-Based Truncation Scheme Based on the Many-Body Fermion Density Matrix

In [S. A. Cheong and C. L. Henley, cond-mat/0206196 (2002)], we found that the many-particle eigenvalues and eigenstates of the many-body density matrix $\rho_B$ of a block of $B$ sites cut out from an infinite chain of noninteracting spinless fermions can all be constructed out of the one-particle eigenvalues and one-particle eigenstates respectively. In this paper we developed a statistical-mechanical analogy between the density matrix eigenstates and the many-body states of a system of noninteracting fermions. Each density matrix eigenstate corresponds to a particular set of occupation of single-particle pseudo-energy levels, and the density matrix eigenstate with the largest weight, having the structure of a Fermi sea ground state, unambiguously defines a pseudo-Fermi level. We then outlined the main ideas behind an operator-based truncation of the density matrix eigenstates, where single-particle pseudo-energy levels far away from the pseudo-Fermi level are removed as degrees of freedom. We report numerical evidence for scaling behaviours in the single-particle pseudo-energy spectrum for different block sizes $B$ and different filling fractions \nbar. With the aid of these scaling relations, which tells us that the block size $B$ plays the role of an inverse temperature in the statistical-mechanical description of the density matrix eigenstates and eigenvalues, we looked into the performance of our operator-based truncation scheme in minimizing the discarded density matrix weight and the error in calculating the dispersion relation for elementary excitations. This performance was compared against that of the traditional density matrix-based truncation scheme, as well as against a operator-based plane wave truncation scheme, and found to be very satisfactory.Comment: 22 pages in RevTeX4 format, 22 figures. Uses amsmath, amssymb, graphicx and mathrsfs package