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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 785.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014

    Animal genetic resources ex situ conservation is an essential and complementary tool to in situ conservation. It is one of the main procedures for population recovery. The aim of this study was to calculate and to break down the cost, determining criopreserved seminal doses annual maintenance expenses by species. During the study, the costs of two maintenance methods, on one hand kept under self-maintenance and on the other hand by means of hiring an outside maintenance service, were compared for the following species: cattle, goats, sheep, pigs and equines.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Colombia

    Acid sulfated soils are characterized by high amounts of iron and sulfur, which in presence of air are oxidized and form sulfuric horizons extremely acidic, generating environmental changes ranging from water pollution to problems associated with fertility and crop production, among others. This research was conducted in order to identify suitable plant species to control the acidity of these soils in the town of Paipa, Boyacá, Colombia. A completely randomized experimental design with 6 treatments and 3 replications was implemented in potting shed; there, the response of Beta vulgaris L.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Irán

    and is becoming a scarce natural resource due to the burgeoning population growth and urbanization. Essentially, detecting changes in land surface is significant for understanding and assessing human impacts on the environment. Nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. This study investigates the land use changes in Birjand of Iran using Landsat TM5 images between 1986 and 2010. Artificial neural network was used for classification of Landsat images.

  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014
    Europa

    Background. The 7th Framework Programme for Research and Technological Development is helping the European to prepare for an integrative system for intelligent management of biodiversity knowledge. The infrastructure that is envisaged and that will be further developed within the Programme “Horizon 2020” aims to provide open and free access to taxonomic information to anyone with a requirement for biodiversity data, without the need for individual consent of other persons or institutions.

  5. Library Resource
    Artículos de revistas y libros
    Septiembre, 2014
    Bangladesh

    Bangladesh is located on a huge delta, an area of high population density. The study investigates the situation of commonly used resources in rural Bangladesh, with case studies in two villages in different hydrological situations. In rural Bangladesh, most land is owned privately or by the government, and the common properties are very few. Instead, swamps were open to local communities and anyone has access to it.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 2014

    This paper considers the importance of macroeconomic factors as well as investment climate for foreign direct invest­ ment attraction in the Baltic states. It reviews some of the indicators for measuring the investment climate and their usefulness as indicators of strength of FDI attraction and uses the results of econometric analysis to consider relative importance of various macroeconomic factors. The results suggest that perceptions of corruption and fiscal policy are some of the more important drivers of FDI attraction.

  7. Library Resource
    Artículos de revistas y libros
    Abril, 2014
    Japón

    Here we propose an accurate and robust method for large-area land-use and land-cover (LULC) mapping using multi-temporal optical data. The conventional method for LULC classification usually uses time-series data at regular intervals to consider the seasonality of LULC. However, high-resolution optical data have considerable seasonal biases, making it difficult to use time-series data.

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