414 research outputs found
Food Insecurity Among College Students with and without Medical Disorders at a University in Appalachia
Objective: This study compared severity of food insecurity, characteristics, and behaviors of college students with and without diagnosed medical disorders.
Design: Data were collected using a cross-sectional online questionnaire. Variables measured were food security status, disorders, coping strategies, and perceived barriers to food access. Descriptive and inferential statistics examined associations and compared groups. Statistical significance was p≤0.05.
Setting: Data were collected at Appalachian State University in North Carolina.
Participants: The sample was 247 food insecure students, of whom 60% were females, 50% 3rd- and 4th-year students, and 75% whites.
Results: Medical disorders were reported by 67.2% of food insecure students, and a greater proportion of students with than without disorders experienced very low food security (63.3% vs. 43.2%, p=0.003). The most common disorder categories were psychiatric (40.5%) and gastrointestinal (31.6%). Characteristics of food insecure students with disorders included female gender, suboptimal academic performance, employed, off-campus residence. Coping strategies used by students with and without disorders, respectively, to improve food access, included brought food back to school after visiting family, friends, significant others (90.9% vs. 63.0%) and ate less healthy food so you could eat more (77.7% vs. 49.4%). Perceived barriers among students with disorders included feel overwhelmed making food choices (12.7%) and meal plan runs out (10.2%). Food insecure students with disorders made greater use of coping strategies and identified more perceived barriers.
Conclusions: Food insecure students with disorders experienced more severe food deprivation and require multidimensional food assistance programs beyond those generally available on college campuses
A historical study of the founding and development of Tuskegee Institute
Tuskegee Institute was established by an act of the General Assembly of Alabama on February 12, 1881, and Booker T. Washington opened the school on July 4 of that year to become its founder and first principal. Mr. Washington’s aim was to educate the head, the heart, and the hand, and through his students, transmit this learning to the community. He was committed to industrial, not liberal education, for the recently emancipated black population. Tuskegee Institute’s historical controversial philosophy of industrial education has been the subject of much criticism by some black leaders. Washington’s critics felt that the educational program at Tuskegee Institute was not in the best interest of black youth. There was also concern that Washington’s philosophy of education and his philosophy of race relations would force the Negro into a second slavery
Multiple-Planet Scattering and the Origin of Hot Jupiters
Exoplanets show a pile-up of Jupiter-size planets in orbits with a 3-day
period. A fraction of these hot Jupiters have retrograde orbits with respect to
the parent star's rotation. To explain these observations we performed a series
of numerical integrations of planet scattering followed by the tidal
circularization. We considered planetary systems having 3 and 4 planets
initially. We found that the standard Kozai migration is an inefficient
mechanism for the formation of hot Jupiters.
Our results show the formation of two distinct populations of hot Jupiters.
The inner population of hot Jupiters with semimajor axis a < 0.03 AU formed in
the systems where no planetary ejections occurred. This group contained a
significant fraction of highly inclined and retrograde orbits, with
distributions largely independent of the initial setup. However, our follow-up
integrations showed that this populations was transient with most planets
falling inside the Roche radius of the star in <1 Gyr. The outer population of
hot Jupiters formed in systems where at least one planet was ejected. This
population survived the effects of tides over >1 Gyr. The semimajor axis
distribution of Population II fits nicely the observed 3-day pile-up.
The inclination distribution of the outer hot planets depends on the number
of planets in the initial systems and the 4-planet case showed a larger
proportion (up to 10%), and a wider spread in inclination values. As the later
results roughly agrees with observations, this may suggest that the planetary
systems with observed hot Jupiters were originally rich in the number of
planets, some of which were ejected. In a broad perspective, our work therefore
hints on an unexpected link between the hot Jupiters and recently discovered
free floating planets.Comment: submitted to Ap
Novel microsatellites and investigation of faecal DNA as a non-invasive population monitoring tool for the banded hare-wallaby (Lagostrophus fasciatus)
Monitoring programs for populations of small or medium-sized animals often use live-capture or photo-monitoring trapping methods to estimate population size. The banded hare-wallaby (Lagostrophus fasciatus), a small macropodiform marsupial, does not readily enter traps or have individually unique distinguishing physical features and is consequently difficult to monitor using these methods. Isolating DNA from faecal material to obtain individual genotypes is a promising monitoring technique and may present an alternative approach for this species. We developed novel species-specific microsatellite markers and undertook trials to assess faecal DNA degradation in ambient environmental conditions at two locations where this species has been translocated. The quality of DNA yielded from faecal pellets was evaluated through amplification failure and genotyping error rates of microsatellite markers. Error rates were compared for different treatments and exposure duration across multiple individuals. DNA was successfully obtained from all samples and error rates increased with exposure duration, peaking after 14–30 days depending on the site and treatment. The level of solar exposure was the most significant factor affecting degradation rate but both this and exposure duration had significant effects on amplification failure. Analysing DNA obtained from faecal pellets may represent a practical non-invasive method of deriving population estimates for this species and warrants further development
“Acting the part of an illiterate savage”: James Kelman and the question of postcolonial masculinity
Results of a randomized, double-blind phase II clinical trial of NY-ESO-1 vaccine with ISCOMATRIX adjuvant versus ISCOMATRIX alone in participants with high-risk resected melanoma.
BACKGROUND: To compare the clinical efficacy of New York Esophageal squamous cell carcinoma-1 (NY-ESO-1) vaccine with ISCOMATRIX adjuvant versus ISCOMATRIX alone in a randomized, double-blind phase II study in participants with fully resected melanoma at high risk of recurrence. METHODS: Participants with resected stage IIc, IIIb, IIIc and IV melanoma expressing NY-ESO-1 were randomized to treatment with three doses of NY-ESO-1/ISCOMATRIX or ISCOMATRIX adjuvant administered intramuscularly at 4-week intervals, followed by a further dose at 6 months. Primary endpoint was the proportion free of relapse at 18 months in the intention-to-treat (ITT) population and two per-protocol populations. Secondary endpoints included relapse-free survival (RFS) and overall survival (OS), safety and NY-ESO-1 immunity. RESULTS: The ITT population comprised 110 participants, with 56 randomized to NY-ESO-1/ISCOMATRIX and 54 to ISCOMATRIX alone. No significant toxicities were observed. There were no differences between the study arms in relapses at 18 months or for median time to relapse; 139 vs 176 days (p=0.296), or relapse rate, 27 (48.2%) vs 26 (48.1%) (HR 0.913; 95% CI 0.402 to 2.231), respectively. RFS and OS were similar between the study arms. Vaccine recipients developed strong positive antibody responses to NY-ESO-1 (p≤0.0001) and NY-ESO-1-specific CD4+ and CD8+ responses. Biopsies following relapse did not demonstrate differences in NY-ESO-1 expression between the study populations although an exploratory study demonstrated reduced (NY-ESO-1)+/Human Leukocyte Antigen (HLA) class I+ double-positive cells in biopsies from vaccine recipients performed on relapse in 19 participants. CONCLUSIONS: The vaccine was well tolerated, however, despite inducing antigen-specific immunity, it did not affect survival endpoints. Immune escape through the downregulation of NY-ESO-1 and/or HLA class I molecules on tumor may have contributed to relapse
Dreaming of drams: Authenticity in Scottish whisky tourism as an expression of unresolved Habermasian rationalities
In this paper, the production of whisky tourism at both independently owned and corporately owned distilleries in Scotland is explored by focusing on four examples (Arran, Glengoyne, Glenturret and Bruichladdich). In particular, claims of authenticity and Scottishness of Scottish whiskies through commercial materials, case studies, website-forum discussions and 'independent' writing about such whisky are analysed. It is argued that the globalisation and commodification of whisky and whisky tourism, and the communicative backlash to these trends typified by the search for authenticity, is representative of a Habermasian struggle between two irreconcilable rationalities. This paper will demonstrate that the meaning and purpose of leisure can be understood through such explorations of the tension between the instrumentality of commodification and the freedom of individuals to locate their own leisure lives in the lifeworld that remains. © 2011 Taylor & Francis
MicroRNA-200b Regulates Vascular Endothelial Growth Factor–Mediated Alterations in Diabetic Retinopathy
OBJECTIVE—Diabetic retinopathy (DR) is a leading cause of blindness. Increased vascular endothelial growth factor (VEGF), promoting angiogenesis and increased permeability, is a key mechanistic abnormality in DR. We investigated microRNA (miR) alterations in DR with specific focus on miR-200b, and its downstream target, VEGF. RESEARCH DESIGN AND METHODS—MiR expression pro-filing microarray was used to examine the retinas of streptozo-tocin-induced diabetic rats. Expressions of specific miRNAs were verified with PCR in the rat retina and in glucose-exposed en-dothelial cells. A target search, based on sequence complemen-tarities, identified specific targets. We analyzed mRNA levels and protein expression in endothelial cells from large vessels and retinal capillaries and in the rat retina, with or without injection of miR-200b mimic or antigomirs. Localization of miR-200
Employee Attributions of the Why of HR Practices: Their Effects on Employee Attitudes and Behaviors, and Customer Satisfaction
The construct of Human Resource (HR) Attributions is introduced. We argue that the attributions that employees make about the reasons why management adopts the HR practices that it does have consequences for their attitudes and behaviors, and ultimately, unit performance. Drawing on the strategic HR literature, we propose a typology of five HR-Attribution dimensions. Utilizing data collected from a service firm, we show that employees make varying attributions for the same HR practices, and that these attributions are differentially associated with commitment and satisfaction. In turn, we show that these attitudes become shared within units and that they are related to unit-level organizational citizenship behaviors and customer satisfaction. Findings and implications are discussed
Use of a seagrass residency index to apportion commercial fishery landing values and recreation fisheries expenditure to seagrass habitat service.
Where they dominate coastlines, seagrass beds are thought to have a fundamental role in maintaining populations of exploited species. Thus, Mediterranean seagrass beds are afforded protection, yet no attempt to determine the contribution of these areas to both commercial fisheries landings and recreational fisheries expenditure has been made. There is evidence that seagrass extent continues to decline, but there is little understanding of the potential impacts of this decline. We used a seagrass residency index, that was trait and evidence based, to estimate the proportion of Mediterranean commercial fishery landings values and recreation fisheries total expenditure that can be attributed to seagrass during different life stages. The index was calculated as a weighted sum of the averages of the estimated residence time in seagrass (compared with other habitats) at each life stage of the fishery species found in seagrass. Seagrass-associated species were estimated to contribute 30%-40% to the value of commercial fisheries landings and approximately 29% to recreational fisheries expenditure. These species predominantly rely on seagrass to survive juvenile stages. Seagrass beds had an estimated direct annual contribution during residency of €58-91 million (4% of commercial landing values) and €112 million (6% of recreation expenditure) to commercial and recreational fisheries, respectively, despite covering <2% of the area. These results suggest there is a clear cost of seagrass degradation associated with ineffective management of seagrass beds and that policy to manage both fisheries and seagrass beds should take into account the socioeconomic implications of seagrass loss to recreational and commercial fisheries
- …