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Bacteria and fungi are the main agents in decomposition of soil organic matter. Their activity is determined by the availability and quality of substrate, especially its content of carbon, but also nitrogen and phosphorus. Other environmental factors, which affect the activity of the microbial community in soil, are temperature, moisture and pH. In this thesis the focus was on how temperature and

In this thesis, the importance of cobalt and humic substances of terrestrial origin for the growth of some bloom-forming marine phytoplankton species is examined. Cobalt (Co) is considered an essential and potentially limiting trace metal for phytoplankton growth and is needed for the synthesis of vitamin B12. Since Co can be mobilised from soils at low pH values, acidification may have led to an

Popular Abstract in Swedish Huvud- hals cancer Studier kring betydelsen av kärltäthet, svar på strålbehandling och tumörmetabolism, undersökt med positron emissions tomografi ( PET) Bakgrund Cancer i huvud-hals området är ovanligt i Sverige och utgör c:a 2,5% av alla nya cancerfall (40 000) per år. Beteckningen är ett samlingsnamn för tumörer med sinsemellan skilda egenskaper, uppkomna från i förTreatment options of head and neck squamous cell carcinoma (HNSCC) usually include combinations of radiotherapy and surgery, and in some cases addition of chemotherapy. In locally advanced cases cure rates are low. Current prognostic factors cannot foresee the outcome for the individual patient. There is consequently a need for reliable prognostic and predictive factors. Through identification of

Popular Abstract in Swedish Internet har under de senaste tio åren växt från marginalföreteelse till ett populärt och mycket använt medium. Många företeelser och tjänster tar steget över till Internet och bland dessa finns även journalistik. I fokus för denna avhandling står förändringsprocesser för journalistikens villkor, ideal och normer när nyhetsjournalistiken bedrivs på?Internet studerade utDuring the last decade the Internet has become a widely used source of information for the average person and also a publishing tool for media corporations. The transition of journalism from one medium to another is one with important implications as the world wide public consumption of online news grows. This dissertation puts focus on how journalistic content changes when it's published on the W

This paper reviews means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variabilit

Basic English Grammar A web linked course Basic English Grammar is not a grammar book per se, with para­graphs and rules, but a course designed specifically for speakers of Swedish who wish to improve their proficiency and confidence in English. Since most Swedish speakers have a great deal of intuitive knowledge about the structure of the English language, the authors have integrated exercises i

A fundamental building block of any Grid infrastructures is the Grid information service and the information model. The information model describes the entities and relationships between entities within the infrastructure along with their semantics. The realization into a concrete data model defines the syntax by which these concepts can be exchanged. This data model enables consumers of informati

The book presents a classification system for Scandinavian flint for use by archaeologists. Flint types are described and evaluated in terms of knappability, limitations posed by nodule size, and prehistoric availability. Flint formation, geographic distribution of flint sources, provenience studies, and patination are discussed in detail.

A major component of aircraft noise is the jet noise created by the high velocity hot stream exhausting from a jet engine, interacting with itself and with the surrounding cold air. In the present paper the flow and acoustic fields that are generated by two coaxial jets are considered. Numerically, the problem is divided into a flow related part (Navier-Stokes system of equation) and an acoustic p

Sockerproduktionen tillhör de sektorer inom EU som erhållit de högsta stöden inom ramen för den gemensamma jordbrukspolitiken. Motståndet mot en reform har därför av förklarliga skäl varit stort från främst råvaruproducenterna samtidigt som reformkraven växt sig allt starkare. När nu EU har lyckats få majoritet för ett steg i en reformering av sockerregleringen innebär detta ett väsentligt genombr