Search for dissertations about: "Biological agents"

Showing result 1 - 5 of 312 swedish dissertations containing the words Biological agents.

  2. 1. In vivo dosimetry of some alkylating agents as a basis for risk estimation

    Author : Dan Segerbäck; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The present study concerns in vivo dosimetry of ultimate electrophilic reagents as a step in risk estimation of mutagenic and carcinogenic chemicals. The level of reaction products with nucleophilic groups in macromolecules could be used for dose determination. READ MORE

  4. 2. Effects of antiresorptive agents on inflammation and bone regeneration in different osseous sites - experimental and clinical studies

    Author : Carina Cardemil; Peter Thomsen; Cecilia Larsson Wexell; Bente Brokstad Herlofson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Qntiresorptive agents; ovariectomised rat; osteoporosis; skeletal site; differences osteonecrosis of the jaw; osseointegration; bone substitute; inflammation; bone regeneration; gene expression; histomorphometry; Micro-CT; antiresorptive agents; ovariectomised rat; osteoporosis; skeletal site differences; osteonecrosis of the jaw; osseointegration; bone substitute; inflammation; bone regeneration; gene expression; histomorphometry; Micro-CT;

    Abstract : The biological mechanisms involved in bone regeneration in osteoporotic bone and the effect of antiresorptive drugs in relation to surgically inserted biomaterials are not fully understood. Improved osseointegration of titanium implants but also adverse effects of antiresorptive therapies, such as osteonecrotic jaw have been described in the literature. READ MORE

  5. 3. Hazard assessment of ciprofloxacin, sulfamethoxazole and triclosan for marine periphyton : Ecotoxicology, Pollution Induced Community Tolerance and Co-Tolerance

    Author : Henrik Johansson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecotoxicology; Antibioitcs; Antimicrobial agents; Ciprofloxacin; Sulfamethoxazole; Triclosan; Community ecotoxicology; Periphyton; Toxicant-induced succession; Pollution-Induced Community Tolerance PICT ;

    Abstract : Antibiotics and personal care products are used in large quantities and commonly detected in various environmental compartments. The two antibiotics, ciprofloxacin and sulfamethoxazole, and the personal care product triclosan are among the most commonly detected compounds in sewage treatment plants and aquatic environments. READ MORE

  6. 4. Virion- and VAP-receptor recognition in the human adenovirus type 2 system

    Author : Eduardo Rodriguez; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; T7pol-M13; adenovirus fiber shaft fragment; receptor recirculation; lysosomotropic agents; Adenovirus; HeLa cells; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Abstract : This thesis is focused on the early steps of a complex virus-cell interaction. The human adenovirus type 2 (HAdV-2) infects permissive cells, by first recognizing a protein of the immunoglobulin superfamily that serves as the Coxsackie and adenovirus receptor (CAR). This attachment step is mediated by the adenovirus fiber protein. READ MORE

  7. 5. Barley defense genes against aphids

    Author : Aleksandra Losvik; Lisbeth Jonsson; Ulla Rasmussen; Robert Glinwood; Bogumił Leszczyński; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Aphid resistance; protease inhibitor; lipoxygenase; induced plant resistance; volatiles; Hordeum vulgare; Rhopalosiphum padi; Myzus persicae; Plant Physiology; växtfysiologi;

    Abstract : Aphids are insect pests with major importance worldwide. By feeding from plant phloem, they directly withdraw nutrients. The feeding injury is often visible in the form of leaf rolling, chlorosis, necrosis or plant deformation. Their pest status is attributed also to vectoring of plant viruses. READ MORE