Sökning: "PEST analysis"

Visar resultat 6 - 10 av 16 avhandlingar innehållade orden PEST analysis.

1. 6. Purification, Stereoisomeric Analysis and Quantification of Biologically Active Compounds in Extracts from Pine Sawflies, African Butterflies and Orchid Bees

   Författare :Joakim Bång; Erik Hedenström; Kristina Sjödin; Hans-Erik Högberg; Anna-Karin Borg-Karlsson; Mittuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semiochemicals; sex pheromone; pine sawflies; Bicyclus; Euglossa; chiral separation; derivatisation; GC-­MS; Organic chemistry; Organisk kemi;

   Sammanfattning : Stereochemistry plays an important role in nature because biologically important molecules such as amino acids, nucleotides and sugars, only exist in enantiomerically pure forms. Semiochemicals carry messages, between the same species (pheromones) and between different species (allelochemicals). LÄS MER

3. 7. In the wake of the Green Revolution : Environmental and socioeconomic consequences of intensive rice agriculture - The Problems of weeds in Muda, Malaysia

   Författare :Magnus Jirström; Institutionen för kulturgeografi och ekonomisk geografi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; intensification; land degradation; rice agriculture; IPM integrated pest management ; Social geography; sustainable agriculture; Green Revolution; Socialgeografi;

   Sammanfattning : The agricultural intensification strategies represented by the Green Revolution have since the mid-1960s had a very positive impact on food-grain production in Asia. Presently, however, a post-Green Revolution phase of declining growth in output and productivity is experienced in many of the areas where intensification took place. LÄS MER

4. 8. Co-developing pest management for organic apple production : combining participatory action research, activity theory, laboratory and field trials in a Swedish context

   Författare :Weronika Swiergiel; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Participatory Action Research (PAR) is an interventionist, action-orientated and transdisciplinary approach to applied research that strives for the collaborative development of any practice together with relevant stakeholders. It enhances the relevance of research to practice by active stakeholder involvement in all research steps, including the spaces in which the practice is conducted, its iterative knowledge construction and the recognition that knowledge exists in practice and is created when attempting to transform reality. LÄS MER

5. 9. Acute pesticide poisonings in Nicaragua : underreporting, incidence and determinants

   Författare :Marianela Corriols Molina; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Pesticide poisonings; surveillance system; underreport; incidence; economic costs; determinants; integrated pest management;

   Sammanfattning : Background: Acute pesticide poisonings (APP) are a public health problem in Nicaragua. The quality and coverage of APP´s register, the real incidence of APP, the main determinants, the economic cost of treating cases and the effectiveness of educational intervention are not well known. LÄS MER

7. 10. Food webs in agroecosystems : implications for biological control of insect pests

   Författare :Eve Roubinet; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The management of insect pests in modern agriculture is dominated by chemical control, despite wide recognition of its detrimental impact on the environment and human health. As a sustainable alternative, the service of biological control of insect pests is provided by a diversity of natural enemies, such as ground dwelling carabids and spiders. LÄS MER