747 research outputs found

    About the barotropic compressible quantum Navier-Stokes equations

    Get PDF
    In this paper we consider the barotropic compressible quantum Navier-Stokes equations with a linear density dependent viscosity and its limit when the scaled Planck constant vanish. Following recent works on degenerate compressible Navier-Stokes equations, we prove the global existence of weak solutions by the use of a singular pressure close to vacuum. With such singular pressure, we can use the standard definition of global weak solutions which also allows to justify the limit when the scaled Planck constant denoted by Ï”\epsilon tends to 0

    Alien Registration- London, Violet M. (Monticello, Aroostook County)

    Get PDF
    https://digitalmaine.com/alien_docs/33972/thumbnail.jp

    Proceedings of the Regional Conference on Gender Issues in Communitv-Based Natural Resource Management CBNRM (Cresta Lodge, Harare : 24 - 27 August 1998)

    Get PDF
    A conference paper on the need to preserve trees in the Mozambican refugee camps in Malawi. Paper presented at regional conference on gender issues in community-based natural resource management (CBNRM), Cresta Lodge, Harare, 24 - 27 August.Malawi is a landlocked country that is bordered by Mozambique in the south and east, Zambia in the west and Tanzania in the north. The total land area is 119,140 square kilometres, 20% is covered by water and approximately five million hectares is covered by indigenous forests and woodland. Of this 20% consists of national parks and game reserves and 20% forest reserves and protected hill tops and 60% of natural woodland on customary land, 80,000 hectares is under exotic plantation management. Between 1986 and 1994 Malawi hosted over a million Mozambican refugees who fled their country following the protracted armed struggle between FRELIMO soldiers and REMAMO bandits. The large influx had negative effects on the socio-economic spheres of the society as well as the natural resources: such as water, land, trees and forests. This paper will assess how gender sensitive the measures taken by different organizations were and the impact that this had on the afforestation project.The success of this conference and the publication of these proceedings has been possible through support from the US Agency for International Development (USAID

    Evaluating Head Start: An Historical Review of Program Goals and Factors Which Impact Program Evaluation

    Get PDF
    This exploratory historical study researches the Head Start program goals and performance standards from the original task force and President Johnson\u27s declaration of the war on poverty, to the present day. The historical research on the Head Start program is presented by decade adjacent to historical information about child development and early childhood education, and the political climate of that decade. The study will examine major Head Start program evaluations which occurred during each of the past three decades and discuss historical factors which may have impacted the research designs. The ultimate goal of this project is to learn from the past and to offer strategies for planning and implementing future evaluations of the Head Start progra

    A Geographic Information System for Invasive Species: Sahara Mustard Weed

    Get PDF
    Invasive plant species are aggressively spreading and threatening the Joshua Tree National Park (JOTR) ecosystem. Uncontrolled invasives will crowd out native plants and disrupt the natural habitat for desert animal species. JOTR needed a geographic information system (GIS) that can provide support for developing weed control plans against the Sahara mustard threat. This project addressed this need by developing a geodatabase for analysis, compiling required GIS feature layers, developing a mustard weed data model and a predictive spread model to aid in tracking the invasive weed. The data model identifies the essential data to collect for assessing and monitoring mustard weed observations. The compiled GIS feature layers consists of human activity factors (road network, trail, disturbed areas) and land factors (soil type, elevation, slope, vegetation cover, etc.). Human activity is a strong predictor of weed spread and these feature classes are the main element in one tool, the Predict Weed Spread Model. Land assessment analysis helps identify JOTR areas that are potentially high risk to mustard weed infestation. Results showed that a fundamental understanding of the Sahara mustard dynamics is required to model weed habitats and to predict weed spread that contributed to its existence and spread

    A Biosystematic Study of the Fern Genus LYGODIUM in Eastern North America

    Get PDF
    The mainly tropical genus Lygodium differs from other ferns in that the fronds are indeterminate and are vine-like. A single species, L. palmatum is native in temperate North America. The temperate Asian L. japonicum is naturalized throughout much of the southeastern United States. About twenty years ago, L. microphyllum was introduced into South Florida and is now naturalized in several counties. The present study documents differences among spores and their generation, development of sporophytes from the fertilized egg, and in flavonoid chemistry. Hybridization experiments showed a strong possibility for cross fertility between species. Experiments with prothallial development and differentiation revealed that environment influenced variation and gametangium formation. Greater similarity in sporophyte developmental stages and in frond phytochemistry show that the native L. palmatum is phenetically closer to the tropical L. microphyllum than to L. japonicum. All three species are clearly distinct at all levels examined

    Alien Registration- Gallant, Violet M. (Portland, Cumberland County)

    Get PDF
    https://digitalmaine.com/alien_docs/24059/thumbnail.jp

    Interview with Violet Jamison Riffe

    Get PDF
    An interview with Violet Riffee regarding her experiences in a one-room school house.https://scholars.fhsu.edu/ors/1112/thumbnail.jp

    PRINCIPALS’ PERCEPTION OF CHALLENGES UNDERMINING EFFECTIVE IMPLEMENTATION OF FREE SECONDARY EDUCATION IN LIKUYANI SUB-COUNTY, KENYA

    Get PDF
    Free Secondary Education (FSE) in Kenya was introduced in 2018 with an aim of enhancing access to secondary education in the country. This initiative however, has experienced challenges related to funding, infrastructure in schools and staffing shortages. In this regard, the study sought to examine principals’ perception of the challenges with a view to determining the extent to which the challenges could be undermining effective implementation of the programme in Likuyani sub-county. The study used ex-post facto research design. Data was collected by use of a personally delivered questionnaire from 52 principals who were randomly selected from a total population of 60 principals in the study area. Data analysis was done using Statistical Package for Social Science (SPSS) programme version 20. Nominal scale data was analysed using frequency counts and percentages while ordinal scale data was analysed using t-test and ANOVA statistics. Gender of the principal had no statistically significant influence on principals’ perception of the challenges undermining FSE implementation. However, years of experience had a statistically significant influence on the rating of FSE implementation challenges. The study has proffered a number of recommendation on ways in which implementation of FSE can be enhanced in the study area and by implicating other parts of the country.  Article visualizations

    Site specific nutrient management software for coffee

    Get PDF
    Chemical fertilizers are integral part of agriculture and continue to be inevitable source of nutrients. A site specific soil test based nutrient management system ensures the judicious use of fertilizers by contributing to the sustainable and economic production without polluting the soil resources. Coffee is a major commercial crop of India and the site specific fertilizer recommendations for this crop have proved to have advantages over ‘blanket fertilization’ by improving the fertilizer use efficiency and profitability. The software was designed in such a way that entries corresponding to the block-wise soil test data viz., soil pH, available N, P and K generate necessary information on the quantity of suitable and available fertilizers that need to be applied to each block to meet the demand of the crop and plant
    • 

    corecore