Search for dissertations about: "PH indicator"

Showing result 1 - 5 of 33 swedish dissertations containing the words PH indicator.

  2. 1. Brain Aromatase in the guppy, Poecilia reticulata : Distribution, control and role in behaviour

    Author : Stefan Hallgren; Håkan Olsén; Bertil Borg; Julie Bakker; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Oestrogen production; behaviour; anatomy; endocrinology; bio markers; endocrine disruption; Organism biology; Organismbiologi; funktionell morfologi; Functional Zoomorphology; Biology;

    Abstract : Oestrogens are produced by aromatisation of androgens by the aromatase enzyme. In the vertebrate brain this synthesis has vital functions in nerve protection, cell proliferation and nerve development during injury respectively brain development. READ MORE

  4. 2. Climate vulnerability assessment methodology : Agriculture under climate change in the Nordic region

    Author : Lotten Wiréhn; Tina-Simone Schmid Neset; Björn-Ola Linnér; Giuseppe Feola; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Agriculture; Assessment methodology; Climate change; Geographic Visualization; Indicator-based methods; Vulnerability; Bedömningsmetodologi; Geografisk Visualisering; Indikatorbaserade metoder; Jordbruk; Klimatförändringar; Sårbarhet;

    Abstract : Food security and climate change mitigation are crucial missions for the agricultural sector and for global work on sustainable development. Concurrently, agricultural production is directly dependent on climatic conditions, making climate change adaptation strategies essential for the agricultural sector. READ MORE

  5. 3. Statistical modeling and design in forestry : The case of single tree models

    Author : Leakemariam Berhe; Göran Arnoldsson; Göran Broström; Dieter Rasch; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Forest data; Covariance structures; Nonlinear mixed effects models; Tree taper models; Ds-optimal design; Replication-free design.; Statistics; Statistik;

    Abstract : Forest quantification methods have evolved from a simple graphical approach to complex regression models with stochastic structural components. Currently, mixed effects models methodology is receiving attention in the forestry literature. READ MORE

  6. 4. Conservation of semi-natural grasslands : Effects of different management methods on biodiversity

    Author : Malin Tälle; Lars Westerberg; Per Milberg; Uno Wennergren; Hans Henrik Bruun; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Species-rich semi-natural grassland are valuable habitats in the agricultural landscape as they may contain a high diversity of both plant and animal species, as well as provide essential ecosystem services like pollination. To keep these habitats open and to maintain the biodiversity in them, management like grazing or mowing is necessary. READ MORE

  7. 5. Characterization of Pathfinders and Indicators of Gold

    Author : Gabriel Kofi Nzulu; Martin Magnuson; Per Eklund; Hans Högberg; Farid Akhtar; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Pathfinder; Indicator; Gold; Hydrothermal; X-ray; Diffraction; Kubi; Ghana;

    Abstract : Research on natural minerals and their chemical bonding to economically critical raw materials is a viable industrially relevant research area due to its increasing demand. Meeting demands requires fast, robust, and efficient techniques to explore new ore deposits and continuous operation of active mines as well as recycling. READ MORE