Needles in a haystack: screening and healthcare system evidence for homelessness

Effectiveness of screening for homelessness in a large healthcare system was evaluated in terms of successfully referring and connecting patients with appropriate prevention or intervention services. Screening and healthcare services data from nearly 6 million U.S. military veterans were analyzed. Veterans either screened positive for current or risk of housing instability, or negative for both. Current living situation was used to validate results of screening. Administrative evidence for homelessness-related services was significantly higher among positive-screen veterans who accepted a referral for services compared to those who declined. Screening for current or risk of homelessness led to earlier identification, which led to earlier and more extensive service engagement

Quantum Degenerate Mixture of Ytterbium and Lithium Atoms

We have produced a quantum degenerate mixture of fermionic alkali 6Li and bosonic spin-singlet 174Yb gases. This was achieved using sympathetic cooling of lithium atoms by evaporatively cooled ytterbium atoms in a far-off-resonant optical dipole trap. We observe co-existence of Bose condensed (T/T_c~0.8) 174Yb with 2.3*10^4 atoms and Fermi degenerate (T/T_F~0.3) 6Li with 1.2*10^4 atoms. Quasipure Bose-Einstein condensates of up to 3*10^4 174Yb atoms can be produced in single-species experiments. Our results mark a significant step toward studies of few and many-body physics with mixtures of alkali and alkaline-earth-like atoms, and for the production of paramagnetic polar molecules in the quantum regime. Our methods also establish a convenient scheme for producing quantum degenerate ytterbium atoms in a 1064nm optical dipole trap.Comment: 4 pages, 3 figure

The influence of soil textural stratification and compaction on moisture flow

This bulletin reports on Department of Soils research project 211, Infiltration. This study was performed in cooperation with the Soil and Water Conservation Research Division, ARS, U.S. Department of Agriculture--P. [3].Digitized 2007 AES.Includes bibliographical references (page 14)

Comparing the utilization and cost of health services between veterans experiencing brief and ongoing episodes of housing instability

Housing instability is associated with costly patterns of health and behavioral health service use. However, little prior research has examined patterns of service use associated with higher costs among those experiencing ongoing housing instability. To address this gap, we compared inpatient and outpatient medical and behavioral health service utilization and costs between veterans experiencing brief and ongoing episodes of housing instability. We used data from a brief screening instrument for homelessness and housing instability that has been implemented throughout the US Department of Veterans Affairs (VA) health care system to identify a national sample of veterans experiencing housing instability. Veterans were classified as experiencing either brief or ongoing housing instability, based on two consecutive responses to the instrument, and we used a series of two-part regression models to conduct adjusted comparisons of costs between veterans experiencing brief and ongoing episodes of housing instability. Among 5794 veterans screening positive for housing instability, 4934 (85%) were experiencing brief and 860 (15%) ongoing instability. The average total annual incremental cost associated with ongoing versus brief episodes of housing instability was estimated at $7573, with the bulk of this difference found in inpatient services. Cost differences resulted more from a higher probability of service use among those experiencing ongoing episodes of housing instability than from higher costs among service users. Our findings suggest that VA programmatic efforts aimed at preventing extended episodes of housing instability could potentially result in substantial cost offsets for the VA health care system.This study was supported by funding from the Department of Veterans Affairs (VA) Health Services Research & Development (HSR&D) grant IIR 13-334-3 and from the VA National Center on Homelessness Among Veterans

Sympathetic cooling in an optically trapped mixture of alkali and spin-singlet atoms

We report on the realization of a stable mixture of ultracold lithium and ytterbium atoms confined in a far-off-resonance optical dipole trap. We observe sympathetic cooling of 6Li by 174Yb and extract the s-wave scattering length magnitude |a6Li-174Yb| = (13 \pm 3)a0 from the rate of inter-species thermalization. Using forced evaporative cooling of 174Yb, we achieve reduction of the 6Li temperature to below the Fermi temperature, purely through inter-species sympathetic cooling.Comment: 4 pages, 3 figure

Motivating bureaucrats through social recognition: External validity - A tale of two states

This is the final version. Available on open access from Elsevier via the DOI in this recordBureaucratic performance is a crucial determinant of economic growth, but little real-world evidence exists on how to improve it, especially in resource-constrained settings. We conducted a field experiment of a social recognition intervention to improve record keeping in health facilities in two Nigerian states, replicating the intervention – implemented by a single organization – on bureaucrats performing identical tasks. Social recognition improved performance in one state but had no effect in the other, highlighting both the potential benefits and also the sometimeslimited generalizability of behavioral interventions. Furthermore, differences in facility-level observables did not explain cross-state differences in impacts, suggesting that it may often be difficult to predict external validity

Anomalies, Unparticles, and Seiberg Duality

We calculate triangle anomalies for fermions with non-canonical scaling dimensions. The most well known example of such fermions (aka unfermions) occurs in Seiberg duality where the matching of anomalies (including mesinos with scaling dimensions between 3/2 and 5/2) is a crucial test of duality. By weakly gauging the non-local action for an unfermion, we calculate the one-loop three-current amplitude. Despite the fact that there are more graphs with more complicated propagators and vertices, we find that the calculation can be completed in a way that nearly parallels the usual case. We show that the anomaly factor for fermionic unparticles is independent of the scaling dimension and identical to that for ordinary fermions. This can be viewed as a confirmation that unparticle actions correctly capture the physics of conformal fixed point theories like Banks-Zaks or SUSY QCD.Comment: 13 pages, 1 figur

Sealing farm ponds in Missouri

Missouri Agricultural Experiment Station and the United States Department of Agriculture cooperating.Digitized 2007 AES.Includes bibliographical references (page 28)

Resource policy implications of animal rights activism : a demographic, attitudinal and behavioral analysis

The thesis analyzes the demographic, attitudinal and behavioral characteristics of animal rights activists, placing them in the context of resource policy. It is argued that the animal rights movement combined the Victorian critique of empiricism with a reaction to modernity that was characteristic of other contemporary mass movements. Animal rights activism emerged from a sociopolitical milieu that legitimized and encouraged political activism in the form of interest groups, and was consistent with American interest group politics. Nonetheless, the movement could not have appeared in its current form prior to the 1960's. Changes in American politics during the last four decades have facilitated the emergence of mass movements, including civil rights and environmentalism. Survey research indicated that activists were caucasian, highly-educated urban professional women approximately thirty years old with a median income of $33,000 (1989). Most were Democrats or Independents and had moderate to liberal political views. They were often suspicious of science. It was concluded that animal rights activism is, in part, a symbolic manifestation of egalitarian social and political beliefs reacting to scientific and technological change. The California Wildlife Protection Act of 1990 provided a case study of the movement's implications for natural resource policy. Activists were able to ban the hunting of mountain lions and reallocate$900 million dollars in the California budget toward habitat acquisition. They demonstrated sophistication and finesse in building a coalition with environmentalists. Nevertheless, both movements were divided by fundamental philosophical differences which makes political cooperation difficult. Animal rights activism was also marked by extraordinary levels of intensity which arose from quasi-religious fervor, and it is suggested that activism fulfills Yinger's functional definition of religion in the lives of at least some of the movement's core constituency. This explains the movement's ability to retain activism in the face of incremental change. The thesis concludes with a discussion concerning the future implications of animal rights activism in society (312 words)