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Possible role of ectomycorrhizal fungi in cycling of aluminium in podzols

Budget studies in boreal podzols indicate a considerable upward transport of aluminium (Al) from the mineral soil into the organic horizon. In this paper we studied if ectomycorthizal (EcM) fungi can be involved in this upward transport via their extramatrical hyphae. We tested the use of gallium (Ga) as proxy for Al. Transport of Al through EcM hyphae was studied in vitro in a two-compartment Pet

A Flexible Spatio-Temporal Model for Air Pollution: Allowing for Spatio-Temporal Covariates

Given the increasing interest in the association between exposure to air pollution and adverse health outcomes, the development of models that provide accurate spatio-temporal predictions of air pollution concentrations at small spatial scales is of great importance when assessing potential health effects of air pollution. The methodology presented here has been developed as part of the Multi-Ethn

A Scientific Revolution that Made Life Longer, Schooling and the Decline of Infant Mortality in Europe

This paper addresses the decline in infant mortality that occurred with a remarkable synchronization across Europe around the turn of the century 1900. It is the argument of this paper that this development is not just, as in the conventional view, the side effect of economic growth but could be derived through a cumulative chain of events, starting with the discovery of the germ theory. Mokyr has

Surface temperature measurements in the cone calorimeter using phosphorescence

The Cone Calorimeter is the most complete reaction-to fire test apparatus available presently. It measures heat release rates and mass loss rate, ignitability properties and smoke and toxic gas production rate. One of the main advantages remains in its wide spread and use. There are, however, some drawbacks in the cone calorimeter that should be noticed and maybe corrected for. The sample size is

Technology, Talent and Tolerance - The Geography of the Creative Class in Sweden

The report is a statistical analysis of how the creative class approach and specifically how technology, talent, tolerance and the creative class are linked to regional growth in Sweden. When examining the location of the creative class, technology, talent and tolerance, Uppsala, Stockholm, Gothenburg and Malmö-Lund appear as the most competitive Swedish regions. By use of multivariate regression

Ultraviolet Spectral Analyses of HgMn Stars

Almost a decade after the last observations were performed by theInternational Ultraviolet Explorer (IUE) satellite its rich archivescomprise a wealth of opportunity for the stellar astronomer, inparticular when exploring large samples of stars. We have inaugurated anexploration into the nature of chemically peculiar stars through thoseelemental abundance studies which are best carried out at UVwa

En kritisk undersökning av det modernistiska projektet för design i Sverige.

The thesis has one aim: to investigate the modernist project for design in Sweden and extract its dominant ideals, with the purpose of discussing it critically. The ideals of the modernist project for design make the social democratic thought manifest. These ideals are interpreted as a socialistic aesthetic. The results of the investigation can be summoned up in the following conclusions: When a c

Total parenteral nutrition modulates hormone release by stimulating expression and activity of inducible nitric oxide synthase in rat pancreatic islets

The expression and activities of constitutive nitric oxide synthase (cNOS) and inducible nitric oxide synthase (iNOS) in relation to insulin and glucagon secretory mechanisms were investigated in islets isolated from rats subjected to total parenteral nutrition (TPN) for 10 d. TPN is known to result in significantly increased levels of plasma lipids during the infusion time. In comparison with isl

Cardioprotection by estrogens: implications of observational studies

Women younger than 50 have a lower age-specific incidence of CVD than men. With advancing age this difference gradually disappears. These well-established facts provide the rationale for numerous primary and a few secondary intervention studies with ERT. With increasing sophistication and longer observation periods, both case-control and cohort studies agree on a cardioprotective effect by estroge

The atypical lipase B from Candida antarctica is better adapted for organic media than the typical lipase from Thermomyces lanuginosa.

Candida antarctica lipase B (CALB) and Thermomyces lanuginosa lipase (TLL) were evaluated as catalysts in different reaction media using hydrolysis of tributyrin as model reaction. In o/w emulsions, the enzymes were used in the free form and for use in monophasic organic media, the lipases were adsorbed on porous polypropylene (Accurel EP-100). In monophasic organic media, the highest specific act

Amplification of 12q13 and 12q15 sequences in a sclerosing epithelioid fibrosarcoma

Sclerosing epithelioid fibrosarcoma (SEF) is a recently described entity. It is a low-grade sarcoma that occurs primarily in the deep soft tissues of the extremities of adults. It may histologically simulate benign lesions such as fibroma and myxoma or malignancies such as sclerosing carcinoma and lymphoma, extraskeletal myxoid chondrosarcoma, clear cell sarcoma of tendons and aponeuroses, and syn

Migrant Agricultural Workers and Their Socio-­‐economic, Occupational and Health Conditions– A Literature Review

Objective This study provides the summary of current knowledge about migrant work in agriculture available from journal articles, books, reports and other relevant academic publications, focusing on political, economic, legal, social and medical aspects of migrant work in agriculture. Methods A systematic search was carried out on the LibHub and Google Scholar databases in order to compile the e

Lattice Boltzmann Modeling of Advection-Diffusion Transport With Electrochemical Reactions in a Porous SOFC Anode Structure

Lattice Boltzmann method (LBM) is a method that can be used to capture the detailed activities of the transport processes at microscale. Here LBM is used to model the porous anode for an anode-supported Solid Oxide Fuel Cell (SOFC). The purpose of this study is to investigate the effects of electrochemical reactions on the transport processes by a 3D model at microscale. A porous 3D modeling domai

New Methods for Automated Interpretation of Electrocardiograms and Lung Scintigrams

Popular Abstract in Swedish Datorer har blivit en viktig del inom den moderna medicinen. Resultat från patientundersökningar såsom bilder, kurvor och mätvärden bearbetas ofta av datorer och presenteras sedan på ett överskådligt sätt för läkaren som grundar sitt svar på bland annat denna information. Denna doktorsavhandling beskriver hur datorn kan hjälpa till vid själva tolkningen av undersökningThe principal purposes of the studies reported in this thesis were to develop new methods to make computerised decision support systems in medicine both more reliable and fully automated. These aims were pursued in the belief that the solution to these problems will lead to an increased clinical use of such systems resulting in benefit to both patient and physician. In the first two studies, meth

Tvärkulturell fostran : Svensk-italienska ungdomars erfarenhet av att växa upp med två kulturer

Popular Abstract in Swedish Med utgångspunkt från svensk-italienska ungdomars erfarenhet av att växa upp med två kulturer, vill författaren, utifrån ett pedagogiskt perspektiv, ge en beskrivning av innebörden i tvärkulturell fostran. Tvärkulturell fostran i den här studien innebär fostran med betydande inslag från minst två klart skilda kulturtraditioner, den svenska och den italienska. Den empiriThe present study dealt with what occurs in a social-cultural rearing-process when the parents derive from two different cultural traditions. It is a qualitative case study, with an ethnographically inspired approach, which considers processes rather than outcome, context rather than any specific variable and discovery rather than confirmation. The empirical data consist of interviews made with 41

The Ecophysiology of Arbuscular Mycorrhizal Fungi: Phosphatase Activity Associated with Extraradical and Intraradical Mycelium

Popular Abstract in Swedish Svampmycel i marken hämtar sin energi både från levande och dött organiskt material. Vissa svampar hämtar energi direkt från levande växter genom att bilda en symbios som kallas mykorrhiza. Arbuskulär mykorrhiza (AM) är en sådan typ som bildas av svampar som inte kan leva utan värdväxter. AM-svamp hämtar sin energi från rötter, samtidigt tar svampen upp viktiga växtnäri

Timing of spring migration in birds: long-term trends, North Atlantic Oscillation and the significance of different migration routes

We studied long-term trends and the yearly variation in mean spring passage time in 36 passerine bird species trapped at Ottenby Bird Observatory in south-eastern Sweden. Between the years 1952-2002, data were available for 22-45 years depending on species. Most long-distance migrant species passed progressively earlier over the study period (range: 2.5 days earlier to 0.7 days later per 10 years,

Simulation of soil chemistry and nutrient availability in a forested ecosytem of southern Quebec. Part II. Application of the SAFE model

The dynamic soil model SAFE was calibrated and validated in a small hardwood forest of southern Quebec as a function of its ability to reproduce current soil chemistry and similar pre-industrial soil conditions despite the difference in forest history. SAFE was relatively accurate for reproducing soil chemistry, but comparison of pre-industrial soil conditions between unburned and burned stands ca

Ex vivo and in vitro studies of transgene expression in rat astrocytes transduced with lentiviral vectors.

Implantation of cells genetically modified to express therapeutic genes into the brain has been proposed as a potential treatment for neurodegenerative diseases. In the current study embryonic rat-derived astrocytes were cultured and transduced with a lentiviral vector expressing the reporter gene green fluorescent protein (GFP) and subsequently grafted into the adult rat brain. The proportion of

Individual and neighbourhood determinants of social participation and social capital: a multilevel analysis of the city of Malmö, Sweden.

The aim of this study was to analyse the impact of neighbourhood on individual social capital (measured as social participation). The study population consisted of 14,390 individuals aged 45-73 that participated in the Malmö diet and cancer study in 1992-1994, residing in 90 neighbourhoods of Malmö, Sweden (population 250,000). A multilevel logistic regression model, with individuals at the first