Sökning: "microbial chemical markers"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden microbial chemical markers.

  1. 1. Characterisation of the Microbial Community in Indoor Environments: a Chemical-Analytical Approach

    Författare :Aleksandra Sebastian; Avdelningen för medicinsk mikrobiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; indoor air; microbial chemical markers; asthma; allergies; tobacco smoke; Infektioner; Infections;

    Sammanfattning : Inhalation of airborne microorganisms and their toxic components and products may induce a wide spectrum of acute and chronic airway manifestations. The study describes important capabilities of chemical marker analysis in defining human exposure to microorganisms in indoor environments. LÄS MER

  3. 2. Untangling ambiguities in the microbial fossil record : experimental abiotic and biological approaches

    Författare :Sigrid Huld; Anna Neubeck; Sebastian Willman; Sean McMahon; Barbara Cavalazzi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemical gardens; pseudofossils; experimental mineralisation; microbial fossils; methanogens;

    Sammanfattning : Life on early earth has long been the topic of discussion for many researchers: how did it come to be? Which cells came first? Where can we find them? The most ancient rocks on our planet may hold some of the answers to these questions, but many may only be answered in laboratories. Chemical and morphological traces can be found from Archaean deposits, tantalisingly similar to modern day prokaryotes. LÄS MER

  4. 3. Effects of FODMAPs and gluten on irritable bowel syndrome- from self-reported symptoms to molecular profiling

    Författare :Elise Nordin; Chalmers tekniska högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; short-chain fatty acids; metabotyping; Bristol Stool Form Scale; randomized clinical trial; double-blind; irritable bowel syndrome; FODMAPs; microbiota; personalized nutrition; fecal consistency; differential responses; metabolomics; stool water content; gluten;

    Sammanfattning : Irritable bowel syndrome (IBS) is a complex disorder of gut-brain interactions. The diagnosis of IBS is based on subjective reporting of abdominal pain and altered bowel habits in the absence of any clinical alterations of the gut or other pathological conditions. LÄS MER

  5. 4. Indoor and Outdoor Air Pollution in Relation to Allergy and Asthma in Taiyuan, China

    Författare :Zhuohui Zhao; Dan Norbäck; Jan Sundell; Uppsala universitet; []
    Nyckelord :Medical sciences; Indoor air; China; School; Allergen; Dust; Microbial exposure; SO2; Air pollutants; Epidemiology; MEDICIN OCH VÅRD;

    Sammanfattning : The aim was to study the prevalence of asthma, eczema, allergy and respiratory symptoms among pupils in Shanxi province, China, in relation to home and school environment and outdoor air pollution. In one study there was a low prevalence of self-reported asthma, eczema and pollen or pet allergy among pupils (9-20y). LÄS MER

  7. 5. Tracking the fate of biocontrol microorganisms in the environment using intrinsic SCAR markers

    Författare :Anna-Ida Johnsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Biocontrol microorganisms can be used as an alternative to conventional chemical pesticides to control plant diseases. This thesis investigated the fate and behaviour of three microbial model control agents with effect against fungal pathogens in cropping systems, and the spread of one of the model strains in bioaerosols. LÄS MER