Päivi Pihlaja

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It is generally known that hyperventilation produces an increase in neuronal excitability. However, the mechanism whereby a change in CO2 partial pressure (PCO2) leads to changes in neural excitability is not known. We have studied this phenomenon in rat hippocampal slices using double-barrelled microelectrodes for simultaneous recording of field excitatory(More)
Increasing number of governmental organizations have transformed material on their web sites as a way of providing users with information about their products and services. In this paper, we apply Yang et al (2005) instrument for analyzing municipal early childhood education (ECE) web sites in Finland. The objective of the study was to find out the quality(More)
Micrometeorites-submillimetre-sized particles derived from asteroids and comets-occur in significant quantities in deep sea sediments, and the ice sheets of Greenland and Antarctica. The most abundant micrometeorites are cosmic spherules, which contain nickel-rich spinels that were crystallized and oxidized during atmospheric entry, therefore recording the(More)
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