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Many phytoplankton species produce resting cysts, forming 'seed banks' on lake sediments until they germinate and provide inocula (recruitment) for future pelagic populations. We have addressed the question of whether the littoral or the profundal zone provides the inoculum for planktonic populations in a eutrophic and dimictic lake (Lake Erken, Sweden). Our hypotheses were that high temperature,
Culture filtrates of the nematophagous fungi Verticillium chlamydosporium and V. suchlasporium growing on colloidal chitin showed increasing chitinolytic activity and production of two (32- and 43-kDa) main proteins. Maximum activity was found 18-20 days after inoculation, but V. suchlasporium always displayed higher activity. Zymography of such filtrates on carboxymethyl-chitin-Remazol brilliant
The purpose of this study was to investigate by direct measurement the cross-sectional relationship between accelerometer-measured physical activity and peak oxygen uptake ([Vdot]O(2peak): ml . min(-1) . kg(-1)), in a population-based cohort of young children, since such data are scarce. The study included 468 children (246 boys, 222 girls) aged 6.7 +/- 0.4 years, recruited from a population-based
Background: Little is known about the associations of metabolic aberrations with malignant melanoma (MM) and nonmelanoma skin cancer (NMSC). Objectives: To assess the associations between metabolic factors (both individually and combined) and the risk of skin cancer in the large prospective Metabolic Syndrome and Cancer Project (Me-Can). Methods: During a mean follow-up of 12 years of the Me-C
In this case-control study, interview data on smoking habits were available for 179 de novo cases (116 with cytogenetic data) of acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). Smoking habits were compared with a pooled set of population controls and hospital controls (diagnosed with malignant melanoma). Each pack-year of smoking increased the risk of MDS with 1.3% (95% CI 0.1-2.6
Omega-3s are found in oily fish. We have drastically reduced our intake of fish during the last century. Many of us therefore suffer from a deficiency of omega-3s, which has consequences for health. In this review, we focus on structure-functional relationships and the relation of omega-3s to the metabolic syndrome, infertility, and pregnancy.
The Autism – Tics, AD/HD, and other Comorbidities inventory (A-TAC) is a comprehensive interview for evaluating problems related to autism spectrum disorders (ASD), tic disorders, attention-deficit/hyperactivity disorder (AD/HD), and common comorbid conditions in children and adolescents. A-TAC telephone interviews were administered to parents of 2,957 children aged nine- or twelve-years, represen
Sphingolipids are abundant in the microvillar membrane of intestinal epithelial cells where they are essential for structural integrity and may act as receptors for toxins, virus and bacteria. Metabolism of dietary and membrane sphingolipids in the intestine generates ceramide, sphingosine, sphingosine-1-phosphate, and ceramide-1-phosphate, via the action of alkaline sphingomyelinase, neutral cera
Most complex diseases have well-established genetic and non-genetic risk factors. In some instances, these risk factors are likely to interact, whereby their joint effects convey a level of risk that is either significantly more or less than the sum of these risks. Characterizing these gene-environment interactions may help elucidate the biology of complex diseases, as well as to guide strategies
Objectives: A number of inflammatory biomarkers such as C reactive protein (CRP) are independent predictors of cardiovascular risk. The inflammatory biomarker procalcitonin (PCT) has previously been shown to be associated with coronary atherosclerosis and the metabolic syndrome. We evaluated the ability of PCT to predict future cardiovascular events in a population of apparently healthy individual
Interannual variability in meteorological dryness and wetness in central Finland during the period 1959–2009 was analysed using Standardized Precipitation Index (SPI) on three timescales (annual, seasonal and monthly). For different time steps (12, 3 and 1 months) of SPI values (SPI12, SPI3 and SPI1), trends based on the Mann-Kendall non-parametric test and the most significant relationships with
Abstract is not available
Since the voluntary environmental reporting of companies started in the late eighties, there has been a profusion of literature describing why a company should report and what principles should be followed. This thesis takes a less prescriptive approach by investigating what explains the environmental communication in some Italian firms in the Energy and the Ceramic sectors. The research for these
This report was developed as course literature for a masters program at the IIIEE. It contains an overview over the state of the art of environmental accounting as it stood in 1996. Methods such as Total Cost Assessment, Full Cost Accounting and Life Cycle Analysis/Assessment/Costing are discussed, as well as environmental disclosure in annual reports.
The enzyme ferrochelatase (EC 4.99.1.1) is the terminal enzyme in the biosynthetic pathway of heme b and catalyzes the insertion of Fe(II) into protoporphyrin IX. In this dissertation ferrochelatase from Bacillus subtilis was studied. A new purification method via inclusion bodies was developed that enabled simple purification of recombinant enzyme without tags or modifications that might affect t
