Search for dissertations about: "cypermethrin"

Showing result 1 - 5 of 6 swedish dissertations containing the word cypermethrin.

  1. 1. Pheromonal Mediated Behaviour and Endocrine Responses in Salmonids The impact of Cypermethrin, Copper, and Glyphosate

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Alia Jaensson; Södertörns högskola.; Södertörns högskola.; Uppsala universitet.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURAL SCIENCES Biology Cell and molecular biology Toxicology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Toxikologi; Biologi med inriktning mot ekotoxikologi; Biology with specialization in Environmental Toxicology; Cypermethrin; copper; glyphosate; behaviour; hormones; pheromones; olfaction; 11-ketotestosterone 11-KT ; 17α; 20β-dihydroxy-4-pregnen-3-one 17; 20β-P ; reproduction;

    Abstract : The effects of cypermethrin, copper and glyphosate on the endocrine system and subsequent response to female pheromones were investigated in mature male brown trout (Salmo trutta) parr.  Responses measured were the amount of strippable milt, blood plasma levels of both an androgen (11-ketotestosterone (11-KT)) and a progestin (17α,20β-dihydroxy-4-pregnen-3-one (17,20b-P)), and behavioural changes. READ MORE

  2. 2. Ecological effects of pesticides in freshwater model ecosystems

    University dissertation from Lina Wendt-Rasch, Ecotoxicology, Ecologybuilding, Sölvegatan 37, Lund, Sweden

    Author : Lina Wendt-Rasch; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; marine biology; aquatic ecology; limnology; Marinbiologi; Hydrobiology; community; zooplankton; algae; herbicide; insecticide; pesticide mixture; macrophytes; cypermethrin; metsulfuron-methyl; risk assessment; pesticides; microcosms; limnologi; akvatisk ekologi;

    Abstract : Popular Abstract in Swedish Bekämpningsmedel och algblomningar - finns det någon koppling? Inom det konventionella jordbruket används idag regelmässigt stora mängder bekämpnings-medel, bara i sverige spreds under år 2001 mer än 1700 ton kemiska bekämpnings-medel på åkrarna. Ett stort problem med användandet av dessa ämnen är risken att de sprids och förorenar den intilliggande naturen. READ MORE

  3. 3. Developmental neurotoxicity of persistent and non-persistent pollutants Behavioral and neurochemical assessments of a perfluorinated compound, pesticides and interaction effects

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Iwa Lee; Uppsala universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Brain; Neonatal; Mixtures; Cholinergic system; Organochlorines; Pyrethroids; Organophosphates; Carbamates; Insecticides; PFCs; PFAAs; PFHxS; Endosulfan; Cypermethrin; Chlorpyrifos; Carbaryl; Biology with specialization in Environmental Toxicology; Biologi med inriktning mot miljötoxikologi;

    Abstract : The focus of this thesis was to investigate developmental neurotoxic effects of different persistent and non-persistent environmental pollutants, alone or in binary mixtures, when exposure occurs during a critical period of brain development, in mice. The compounds investigated included a perfluorinated compound, perfluorohexane sulphonate (PFHxS), and four different pesticides, endosulfan, cypermethrin, chlorpyrifos and carbaryl. READ MORE

  4. 4. Isolation, Synthesis and Structure-Activity Relationships of Antifeedants against the Pine Weevil, Hylobius Abietis

    University dissertation from Stockholm : KTH

    Author : Carina Eriksson; KTH.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Pine weevil; Hylobius abietis; semiochemicals; antifeedant; feeding deterrent; feeding stimulant; bark extract; carboxylic acid; piperidine alkaloids; structure-activity; cinnamic aldehyde; benzaldehyde; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi;

    Abstract : The large pine weevil, Hylobius abietis L., is a major insect pest on conifer seedlings in northern Europe. Due to its feeding newly planted trees get girdled, resulting in high seedling mortality (up to 80%). As a consequence great financial losses to the forest industry occur. READ MORE

  5. 5. Studies of nucleotide receptors-induced calcium response in glomerular mesangial cells and afferent arterioles

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Antonio M. Gutiérrez; Uppsala universitet.; [1999]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology and anatomy; mesangial cells; nucleotide receptors; purinoceptors; desensitization; afferent arterioles; ATP; UTP; adenosine; protein phosphatases; calcium; Fysiologi och anatomi; MEDICINE Physiology and pharmacology; MEDICIN Fysiologi och farmakologi; Physiology; fysiologi;

    Abstract : It is known that intracellular calcium concentration ([Ca2+]i) changes in rat glomerular mesangial cells (GMC) and rabbit afferent arterioles (AA) in response to extracellular nucleotides. We studied the nucleotide-induced calcium response in cultured GMC and AA. READ MORE