A SURVEY OF THE FOODSERVICE INDUSTRY

Agribusiness,

Financial Performance of Dairy Cooperatives

Combined balance sheets and operating statements were used to develop benchmark financial ratios for dairy marketing cooperatives. Data from 291 cooperatives were summarized for five types of dairy cooperatives, then by three types and three size combinations. Both type and size of cooperative made differences in most of the 16 financial ratios calculated as well as in the common size balance sheets and operating statements.Finance, Dairy, Cooperatives, Milk, Ratios, Agribusiness,

A multi-scale distribution model for non-equilibrium populations suggests resource limitation in an endangered rodent.

Species distributions are known to be limited by biotic and abiotic factors at multiple temporal and spatial scales. Species distribution models, however, frequently assume a population at equilibrium in both time and space. Studies of habitat selection have repeatedly shown the difficulty of estimating resource selection if the scale or extent of analysis is incorrect. Here, we present a multi-step approach to estimate the realized and potential distribution of the endangered giant kangaroo rat. First, we estimate the potential distribution by modeling suitability at a range-wide scale using static bioclimatic variables. We then examine annual changes in extent at a population-level. We define available habitat based on the total suitable potential distribution at the range-wide scale. Then, within the available habitat, model changes in population extent driven by multiple measures of resource availability. By modeling distributions for a population with robust estimates of population extent through time, and ecologically relevant predictor variables, we improved the predictive ability of SDMs, as well as revealed an unanticipated relationship between population extent and precipitation at multiple scales. At a range-wide scale, the best model indicated the giant kangaroo rat was limited to areas that received little to no precipitation in the summer months. In contrast, the best model for shorter time scales showed a positive relation with resource abundance, driven by precipitation, in the current and previous year. These results suggest that the distribution of the giant kangaroo rat was limited to the wettest parts of the drier areas within the study region. This multi-step approach reinforces the differing relationship species may have with environmental variables at different scales, provides a novel method for defining available habitat in habitat selection studies, and suggests a way to create distribution models at spatial and temporal scales relevant to theoretical and applied ecologists

Letter to William James regarding award of the Lucile Elliott Scholarship, May 11, 1982

A letter from Louise H. Stafford to William James accepting the Luicle Elliott Scholarship

Correlated charge polarization in a chain of coupled quantum dots

Coherent charge transfer in a linear array of tunnel-coupled quantum dots, electrostatically coupled to external gates, is investigated using the Bethe ansatz for a symmetrically biased Hubbard chain. Charge polarization in this correlated system is shown to proceed via two distinct processes: formation of bound states in the metallic phase, and charge transfer processes corresponding to a superposition of antibound states at opposite ends of the chain in the Mott-insulating phase. The polarizability in the insulating phase of the chain exhibits a universal scaling behavior, while the polarization charge in the metallic phase of the model is shown to be quantized in units of $e/2$.Comment: 9 pages, 3 figures, 1 tabl

Transforming Training in Orientation and Mobility: Examining the Effect Using an Audio-Link on the Distance Between Trainer and Trainee

Increased distances between instructor and trainee during orientation and mobility (O&M) training is purported to be associated with improved outcomes of heightened independence, self-efficacy, and preparation for real-world experience as a traveller. However, there is currently no research that identifies standard or optimal instructor-trainee distances or effoctive strategies to increase distances that enhance training outcomes. This exploratory, qualitative study compared the distance between two instructor-trainee dyads over ten 1.5-hour lessons. The first jive lessons were conducted without an Audio-link device, and the second jive occurred using the device. Results indicated that use of an Audio-link system significantly increased training distances between teacher/student dyads beyond proximities measured without the device. The implications for training and research are discussed