Sökning: "Bolivian highlands"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Bolivian highlands.

  1. 1. Addressing water scarcity in the Bolivian Altiplano for sustainable water management

    Författare :Claudia Canedo Rosso; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Climatology; climate modes; Drought; Water balance; ENSO; Soil moisture; crop yield; Remote sensing; Bolivian highlands; arid and semiarid regions; Climate anomaly;

    Sammanfattning : Water scarcity is a consequence of complex interactions between water access and water use. In fact, the time period over which precipitation deficit accumulates is a determing factor for the occurrence of drought. Drought induces crop production losses and far-reaching societal effects. In the South American Altiplano, drought is a major hazard. LÄS MER

  3. 2. Biologically active terpenoids from Bolivian medicinal plants

    Författare :Maribel Lozano Palacios; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bolivian plants; cytotoxicity; triterpenes; damsin; breast cancer;

    Sammanfattning : Pseudo-guaianolides represent a large group of sesquiterpene lactones exhibiting significant cytotoxic and anti-inflammatory activities. Their biological activities are due to a 훼-methylene-훾-lactone unit in their chemical structure, which reacts with free sulfhydryl groups of free cysteine via a Michael-addition. LÄS MER

  4. 3. Natural Products from Highland and Medicinal Plants from Bolivia

    Författare :Yonny Flores; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Defense mechanism; Bolivian plants; Organic chemistry; Organisk kemi; Secondary Metabolites;

    Sammanfattning : Bolivia is located in the central part of South America and has a large varied ecology - the Amazonas rainforests, the dry forests of the Chaco, the mist forests, the punas and high Andean vegetation. Plants that live in the Bolivia highlands have developed physical and chemicals defense mechanisms to survive in the hard environment of the region. LÄS MER

  5. 4. Building knowledge for a forage breeding program on native Festuca species in the highlands of Bolivia

    Författare :Karina Rossio Ustariz Olivera; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Native grasses constitute the most important source of feed for camelids, sheep and cattle in the highlands of Bolivia, where the genus Festuca is one of the major feed components. The two most important species of this region are F. dolichophylla J. Presl (known as “chilliwa”) and F. LÄS MER

  7. 5. Symbolic and Material Boundaries : An archaeological genealogy of the Urus of Lake Poopó, Bolivia

    Författare :Virginia Sáenz; Frands Herschend; Paul Sinclair; Per Stenborg; Uppsala universitet; []
    Nyckelord :Archaeology; Indians; Andes; Bolivia; Lake Poopó; Pampa Aullagas; Uru; ethnic groups; ethnic markers; Anthropology; History; Archaeology; Architecture; Linguistics; Sociology; multi-disciplinary approach; Arkeologi; arkeologi; Archaeology;

    Sammanfattning : The thesis focuses on Bolivian Indians who are assimilated into ethnic groups as one of many consequences of the colonial past. An understanding of the complexity of this construction draws from disciplines such as Anthropology, Archaeology, History, Sociology, in an effort to expose the power relations behind the construction. LÄS MER