19,406 research outputs found
Assessing the Impacts of Federal Farm Bill Programs on Rural Communities
This report summarizes the state of scientific knowledge on the impact of federal farm and food programs on rural communities in the United States. We focus on the impacts of five specific programs of what is commonly referred to as the āfarm bill.ā These five include farm commodity programs; farm risk management, insurance, and disaster programs; agricultural conservation programs; food and nutrition programs; and rural development programs. Although there is extensive research on the relative merits and effectiveness of specific rural development programs and policies on rural community outcomes, the impacts of the other four main farm bill programs on rural America have received much less empirical scrutiny
Repetition Differences between Three Curl-Up Tests for Abdominal Strength
Curl-up tests are common for assessing abdominal strength and endurance, however, little has been explored on the differences in repetition outcomes of different versions of these tests. PURPOSE: To identify differences in repetitions between three commonly used curl-up tests for abdominal strength and endurance. METHODS: Thirty-six participants (27.5Ā±8.1 yrs, 167.1Ā±9.5 cm, 80.2Ā±23.4 kg, 28.3Ā±10.3% BF) were measured for upper body anthropometrics and repetitions from the FITNESSGRAM curl-up, a military curl-up, and patella curl-ups. Repeated measures ANOVA was used to identify differences in repetitions and the Bonferroni technique was used with pairwise comparisons. Alpha was set at .05 for all tests. RESULTS: There was no significant interaction of sex and curl-up, F(2, 33) = 1.05, p = .58. There was a significant difference in repetitions between military and patella (p = .001) when sex was combined, but not among any of the other comparisons. There was a significant correlation between abdominal circumference and curl-ups for the military and patella tests (r(34)=-.38, p=.021 and r(34)=-.37, p=.024, respectively) as well as well as for arm length and the FITNESSGRAM curl up (r(34)=.40, p=.016). CONCLUSION: Findings indicate a significant difference between the military and patella curl up test, suggesting that these two tests should not be interchanged. Furthermore, it may be that those with longer arms may have an advantage with the FITNESSGRAM curl-ups while greater abdominal circumferences may contribute to fewer repetitions with the military and patella tests
Barriers to the use of a diagnostic oral microbiology laboratory by general dental practitioners
OBJECTIVE: To identify barriers on the use of diagnostic microbiology facilities in general dental practice. DESIGN: A cross-sectional survey using a postal questionnaire. SETTING: Primary/secondary care interface between the diagnostic oral microbiology laboratory, University of Glasgow Dental Hospital and School, Glasgow and dental practitioners within the surrounding health boards, 1998. SUBJECTS: All GDPs (797) within Argyll and Clyde, Ayrshire and Arran, Lanarkshire and Greater Glasgow Health Boards. MAIN OUTCOME MEASURES: The responses were expressed as both absolute and relative frequencies. RESULTS: Responses were received from 430 (55%). The most frequent reason for failure to use the service was lack of information, with more than half of the respondents claiming to be unaware of the facility. Lack of request forms and sampling equipment were also viewed as barriers to using the service. CONCLUSIONS: The laboratory is failing to successfully communicate its role in addressing the growing burden of antibiotic resistance in the community and must be more proactive in encouraging appropriate use and increasing accessibility of the service to GDPs
Faking like a woman? Towards an interpretative theorization of sexual pleasure.
This article explores the possibility of developing a feminist approach to gendered and sexual embodiment which is rooted in the pragmatist/interactionist tradition derived from G.H. Mead, but which in turn develops this perspective by inflecting it through more recent feminist thinking. In so doing we seek to rebalance some of the rather abstract work on gender and embodiment by focusing on an instance of 'heterosexual' everyday/night life - the production of the female orgasm. Through engaging with feminist and interactionist work, we develop an approach to embodied sexual pleasure that emphasizes the sociality of sexual practices and of reflexive sexual selves. We argue that sexual practices and experiences must be understood in social context, taking account of the situatedness of sex as well as wider socio-cultural processes the production of sexual desire and sexual pleasure (or their non-production) always entails interpretive, interactional processes
Social Dimensions of Urban Flood Experience, Exposure, and Concern
With growing urban populations and climate change, urban flooding is an important global issue, even in dryland regions. Flood risk assessments are usually used to identify vulnerable locations and populations, flooding experience patterns, or levels of concern about flooding, but rarely are all of these approaches combined. Furthermore, the social dynamics of flood concerns, exposure, and experience are underexplored. We combined geographic and survey data on householdālevel measures of flood experience, concern, and exposure in Utah\u27s urbanizing Wasatch Front. We asked: (1) Are socially vulnerable groups more likely to be exposed to flood risk? (2) How common are flooding experiences among urban residents, and how are these experiences related to sociodemographic characteristics and exposure? and (3) How concerned are urban residents about flooding, and does concern vary by exposure, flood experience, and sociodemographic characteristics? Although floodplain residents were more likely to be White and have higher incomes, respondents who were of a racial/ethnic minority, were older, had less education, and were living in floodplains were more likely to report flood experiences and concern about flooding. Flood risk management approaches need to address social as well as physical sources of vulnerability to floods and recognize social sources of variation in flood experiences and concern
Optical Studies of Zero-Field Magnetization of CdMnTe Quantum Dots: Influence of Average Size and Composition of Quantum Dots
We show that through the resonant optical excitation of spin-polarized
excitons into CdMnTe magnetic quantum dots, we can induce a macroscopic
magnetization of the Mn impurities. We observe very broad (4 meV linewidth)
emission lines of single dots, which are consistent with the formation of
strongly confined exciton magnetic polarons. Therefore we attribute the
optically induced magnetization of the magnetic dots results to the formation
of spin-polarized exciton magnetic polarons. We find that the photo-induced
magnetization of magnetic polarons is weaker for larger dots which emit at
lower energies within the QD distribution. We also show that the photo-induced
magnetization is stronger for quantum dots with lower Mn concentration, which
we ascribe to weaker Mn-Mn interaction between the nearest neighbors within the
dots. Due to particular stability of the exciton magnetic polarons in QDs,
where the localization of the electrons and holes is comparable to the magnetic
exchange interaction, this optically induced spin alignment persists to
temperatures as high as 160 K.Comment: 26 pages, 7 figs - submitted for publicatio
Mapping local optical densities of states in silicon photonic structures with nanoscale electron spectroscopy
Relativistic electrons in a structured medium generate radiative losses such
as Cherenkov and transition radiation that act as a virtual light source,
coupling to the photonic densities of states. The effect is most pronounced
when the imaginary part of the dielectric function is zero, a regime where in a
non-retarded treatment no loss or coupling can occur. Maps of the resultant
energy losses as a sub-5nm electron probe scans across finite waveguide
structures reveal spatial distributions of optical modes in a spectral domain
ranging from near-infrared to far ultraviolet.Comment: 18 pages, 4 figure
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