4,702 research outputs found

    Children\u27s Books

    Get PDF
    McLerran, Alice (1992). I Want to Go Home; Hughes, Shirley (1992). An Evening At Alfie\u27s; Scott, Elaine (1993). Look Alive; Pryor, Bonnie (1993). Poison Ivy and Eyebrow Wigs; Magnus, Erica (1992). Around Me; Kalan, Robert (1993). Stop, Thief!; Pomerantz, Charlotte (1993). If I had a Paka; Stock, Catherine (1993). Where Are You Going, Manyoni?; Crutcher, Chris (1993). Staying Fat for Sarah Byrnes

    LCF Life of NiCr-Y Coated Disk Alloys After Shot Peening, Oxidation and Hot Corrosion

    Get PDF
    In a prior companion study (Ref. 1), three different Ni-Cr coating compositions (29, 35.5, 45 wt% Cr) were applied at two thicknesses by Plasma Enhanced Magnetron Sputtering (PEMS) to two similar Ni-based disk alloys. One coating also received a thin ZrO2 overcoat. The low cycle fatigue (LCF) life of each coating was determined at 760 C and was less than that of the uncoated specimens. In this followon effort, shot peening was examined as a means to improve the as-deposited coating morphology as well as impart a residual compressive stress in the near-surface region. After evaluating the effect of the shot peening on the LCF life, the effectiveness of the shot-peened coating in protecting the disk alloy from oxidation and hot corrosion attack was evaluated. This evaluation was accomplished by exposing coated and shot-peened specimens to 500 h of oxidation followed by 50 h of hot corrosion, both at 760 C in air. These exposed specimens were then tested in fatigue and compared to similarly treated and exposed uncoated specimens. For all cases, shot peening improved the LCF life of the coated specimens. More specifically, the highest Cr coating showed the best LCF life of the coated specimens after shot peening, as well as after the environmental exposures. Characterization of the coatings after shot peening, oxidation, hot corrosion and LCF testing is presented and discussed

    From Food and Fuel to Farms and Flocks: The Integration of Plant and Animal Remains in the Study of the Agropastoral Economy at Gordion, Turkey

    Get PDF
    The site of Gordion, Turkey, provides a case study of the integrated use of archaeobiological data. Associations between botanical and faunal remains suggest a continuum of land‐use practices. At one end, high ratios of the seeds of wild plants versus cultivated cereal grains (calculated as count/weight) and high proportions of the bones of sheep, goat, and deer are signatures of a subsistence economy focused on pastoral production. At the other, low wild/cereal ratios along with high proportions of the bones of cattle, pig, and hare indicate an economy more focused on agriculture. Based on the millennium‐long sequence analyzed, the most sustainable land use around the ancient settlement emphasized pastoral production; only during the wealthy Middle Phrygian period did high population support greater reliance on agriculture

    The Iowa Crop Management Database: An Agronomic and Economic Information Recording Tool

    Get PDF
    The Iowa Crop Management Database (CMD) is designed to record field-by-field agronomic and economic information for crop production in Iowa. Iowa State University Extension is promoting use of such comprehensive records by producers and crop consultants to improve management decisions and farm profitability. Extension staff can use this information and summaries of these records in educational programs, and to document pollution prevention through refined crop management practices. The CMD program is a relational database designed on a model first developed by Pennsylvania State University. The Iowa version was expanded and developed to include a wider range of information resources needed by Iowa producers as a result of a cooperative effort between Extension, state agencies, and agribusiness organizations. The program can meet record-keeping needs for field-by-field agronomic planning, economic analysis, and regulatory documentation. The CMD program is being widely advertised in Iowa by newsletters, direct mailing, brochures displayed at ISU Extension offices, over the World Wide Web and on local radio stations. ISU Extension field specialists with responsibilities for crop production and farm management have been trained in the use of the program. ISU Extension Agribusiness Education is offering a one day short course to train CMD program users. The course will be held on December 10, 1997, January 14 & 21, 1998 and February 11, 1998

    Ovarian cycling and reproductive state shape the vaginal microbiota in wild baboons

    Get PDF
    Background: The vaginal microbiome is an important site of bacterial-mammalian symbiosis. This symbiosis is currently best characterized for humans, where lactobacilli dominate the microbial community and may help defend women against infectious disease. However, lactobacilli do not dominate the vaginal microbiota of any other mammal studied to date, raising key questions about the forces that shape the vaginal microbiome in non-human mammals. Results: We used Illumina sequencing of the bacterial 16S rRNA gene to investigate variation in the taxonomic composition of the vaginal microbiota in 48 baboons (Papio cynocephalus), members of a well-studied wild population in Kenya. Similar to prior studies, we found that the baboon vaginal microbiota was not dominated by lactobacilli. Despite this difference, and similar to humans, reproductive state was the dominant predictor of baboon vaginal microbiota, with pregnancy, postpartum amenorrhea, and ovarian cycling explaining 18% of the variance in community composition. Furthermore, among cycling females, a striking 39% of variance in community composition was explained by ovarian cycle phase, with an especially distinctive microbial community around ovulation. Peri-ovulatory females exhibited the highest relative abundance of lactic acid-producing bacteria compared to any other phase, with a mean relative abundance of 44%. To a lesser extent, sexual behavior, especially a history of shared sexual partners, also predicted vaginal microbial similarity between baboons. Conclusions: Despite striking differences in their dominant microbes, both human and baboon vaginal microbiota exhibit profound changes in composition in response to reproductive state, ovarian cycle phase, and sexual behavior. We found major shifts in composition during ovulation, which may have implications for disease risk and conception success. These findings highlight the need for future studies to account for fine-scale differences in reproductive state, particularly differences between the various phases of the ovarian cycle. Overall, our work contributes to an emerging understanding of the forces that explain intra- and inter-individual variation in the mammalian vaginal microbiome, with particular emphasis on its role in host health and disease risk

    The Potential Trajectory of Carbapenem-Resistant Enterobacteriaceae, an Emerging Threat to Health-Care Facilities, and the Impact of the Centers for Disease Control and Prevention Toolkit.

    Get PDF
    Carbapenem-resistant Enterobacteriaceae (CRE), a group of pathogens resistant to most antibiotics and associated with high mortality, are a rising emerging public health threat. Current approaches to infection control and prevention have not been adequate to prevent spread. An important but unproven approach is to have hospitals in a region coordinate surveillance and infection control measures. Using our Regional Healthcare Ecosystem Analyst (RHEA) simulation model and detailed Orange County, California, patient-level data on adult inpatient hospital and nursing home admissions (2011-2012), we simulated the spread of CRE throughout Orange County health-care facilities under 3 scenarios: no specific control measures, facility-level infection control efforts (uncoordinated control measures), and a coordinated regional effort. Aggressive uncoordinated and coordinated approaches were highly similar, averting 2,976 and 2,789 CRE transmission events, respectively (72.2% and 77.0% of transmission events), by year 5. With moderate control measures, coordinated regional control resulted in 21.3% more averted cases (n = 408) than did uncoordinated control at year 5. Our model suggests that without increased infection control approaches, CRE would become endemic in nearly all Orange County health-care facilities within 10 years. While implementing the interventions in the Centers for Disease Control and Prevention's CRE toolkit would not completely stop the spread of CRE, it would cut its spread substantially, by half

    A quick guide for student-driven community genome annotation

    Full text link
    High quality gene models are necessary to expand the molecular and genetic tools available for a target organism, but these are available for only a handful of model organisms that have undergone extensive curation and experimental validation over the course of many years. The majority of gene models present in biological databases today have been identified in draft genome assemblies using automated annotation pipelines that are frequently based on orthologs from distantly related model organisms. Manual curation is time consuming and often requires substantial expertise, but is instrumental in improving gene model structure and identification. Manual annotation may seem to be a daunting and cost-prohibitive task for small research communities but involving undergraduates in community genome annotation consortiums can be mutually beneficial for both education and improved genomic resources. We outline a workflow for efficient manual annotation driven by a team of primarily undergraduate annotators. This model can be scaled to large teams and includes quality control processes through incremental evaluation. Moreover, it gives students an opportunity to increase their understanding of genome biology and to participate in scientific research in collaboration with peers and senior researchers at multiple institutions

    Development and Assessment of a Patient-Centered Care Curriculum

    Get PDF
    The purpose of this paper is to chronicle the development and implementation of a pilot offering of the patient-centered care (PCC) curriculum sponsored by a partnership of schools of allied health and nursing and a local health care system. The objective of this interdisciplinary track is to increase the competency of allied health and nursing graduates to function in health care teams in both PCC and non-PCC hospital environments, thus improving the effectiveness of patient care. The elective track consists of two courses; a third course is under consideration. Students and faculty participating in the elective track were surveyed to assess their attitudes toward change and patient-centered care. Generally, participants believed that they could work well together but were not convinced of the viability of the PCC. Although the curriculum is still in its implementation stage and the nursing participation became minimal, this study aids in understanding opinions of nursing and allied health faculty and students regarding a new PCC curriculum

    Nursing Home Staff Palliative Care Knowledge and Practices: Results of a Large Survey of Frontline Workers

    Get PDF
    CONTEXT: Deficits in quality end-of-life care for nursing home (NH) residents are well known. Palliative care is promoted as an approach to improve quality. The Palliative Care Survey (PCS) is designed to measure NH staff palliative care knowledge and practice. OBJECTIVES: To comparing palliative care knowledge and practices across NH staff roles using the PCS, and to examine relationships between facility characteristics and PCS scores. METHODS: The PCS was administered to frontline NH staff-certified nursing assistants (CNAs), licensed practical nurses (LPNs), registered nurses (RNs), and social workers (SWs)-in 51 facilities in 2012. Descriptive statistics were calculated by job role. Linear mixed effects models were used to identify facility and individual factors associated with palliative care practice and knowledge. RESULTS: The analytic sample included 1200 surveys. CNAs had significantly lower practice and knowledge scores compared to LPNs, RNs, and SWs (P < 0.05). LPNs had significantly lower psychological, end-of-life, and total knowledge scores than RNs (P < 0.05 for all). Although knowledge about physical symptoms was uniformly high, end-of-life knowledge was notably low for all staff. A one-point higher facility star rating was significantly associated with a 0.06 increase in family communication score (P = 0.003; 95% CI: 0.02-0.09; SE = 0.02). Higher penetration of hospice in the NH was associated with higher end-of-life knowledge (P = 0.003; parameter estimate = 0.006; 95% CI: 0.002-0.010; SE = 0.002). Sixty-two percent of respondents stated that, with additional training, they would be interested in being leaders in palliative care. CONCLUSION: Given observed differences in palliative care practice and knowledge scores by staff training, it appears the PCS is a useful tool to assess NH staff. Low end-of-life knowledge scores represent an important target for quality improvement
    corecore