Karolinska Institute, Stockholm, Research

From INSTITUTE OF ENVIRONMENTAL MEDICINE Karolinska Institutet, Stockholm, Sweden STUDIES ON METALS IN MOTOR NEURON DISEASE

From the Institute of Environmental Medicine Karolinska Institutet, Stockholm, Sweden ASPECTS OF ECZEMA IN CHILDHOOD

A RESEARCH REPORT FROM STOCKHOLM INSTITUTE FOR F INANCIAL RESEARCH All Guts, No Glory: Trading and Diversification among Online Investors

I explore cross-sectional portfolio performance in a sample containing 324,736 transactions conducted by 16,831 investors at an Internet discount brokerage firm during the period May 1999 to March 2002. On average, investors hold undiversified portfolios, show a strong preference for risk, and trade aggressively. I measure performance using a panel data model, and explain the cross-sectional va...

From the DEPARTMENT OF NEUROSCIENCE Karolinska Institutet, Stockholm, Sweden MOLECULAR MECHANISMS IN SYNAPTIC VESICLE RECYCYLING

Neurons communicate through specialized contacts called synapses, which consist of preand postsynaptic compartments separated by a narrow synaptic cleft. The stimulusdependent rapid influx of calcium ions into the presynaptic compartment induces fusion of neurotransmitter-filled vesicles with the plasma membrane and release of their content into the synaptic cleft. The vesicle membrane then nee...

From THE DEPARTMENT OF CLINICAL SCIENCE AND EDUCATION, SÖDERSJUKHUSET Karolinska Institutet, Stockholm, Sweden

Intensive research in the field of food hypersensitivity (FHS) and food allergy has resulted in determination of serum levels of IgE antibodies to food above which the probability of demonstrating symptoms is ≥ 95%. However, data concerning clinical phenotypes of FHS and the relationship between sensitization to food and symptoms are presently scarce. Moreover, research on the impact of FHS on ...