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Using a variant of information-sharing models, we examine the pros and cons of group foraging against the alternative of staying alone. Models of this category-assuming that in groups food finding by one results in food sharing by many-conclude that patch-finding rate improves with group size. In our modification interference among individuals reduces(More)
For the correct development of the central nervous system, the balance between self-renewing and differentiating divisions of the neuronal progenitors must be tightly regulated. To maintain their self-renewing identity, the progenitors need to retain both apical and basal interfaces. However, the identities of fate-determining signals which cells receive(More)
  • Tarja Latva-Karjanmaa, Leena Suvanto, Kari Leinonen, Hannu Rita, Résumé
  • 2003
Aspen produces large numbers of seeds, even though it mainly reproduces asexually with root suckers. The aim of this study was to find out how different moisture conditions affect emergence and survival of Populus tremula L. seedlings. This was studied with a sowing experiment (totally randomized factorial design). There were altogether 10 blocks, each(More)
BACKGROUND We hypothesized that food allergy causes a state of non-specific jejunal dysmotility. This was tested in a mouse model. METHODS Balb/c mice were epicutaneously sensitized with ovalbumin and challenged with 10 intragastric ovalbumin administrations every second day. Smooth muscle contractility of isolated circular jejunal sections was studied in(More)
  • Tarja Latva-Karjanmaa, Leena Suvanto, Kari Leinonen, Hannu Rita
  • 2005
Aspen (Populus tremula) is capable of reproducing both sexually and asexually from root suckers, the latter being more common. Seedlings are rare even though potential seed production is enormous. The aim of this study was to find out how different moisture conditions affect emergence and survival of aspen seedlings on burned soil. We set up a sowing(More)
BACKGROUND The plant stanol ester margarine Benecol is a functional food that has been shown to lower effectively serum total and LDL-cholesterol. The purpose of this post-marketing study is to characterize users of plant stanol ester margarine with and without cardiovascular disease. METHODS A cohort of plant stanol ester margarine users was established(More)
During retinal development, six different neuronal classes and one glial cell type arise in a conserved, temporal sequence from multipotent, cycling retinal progenitor cells (RPCs). Developing tissues, such as the retina, are exquisitely sensitive to timing of Notch signaling. Interestingly, removal of Notch1 during retinal development resulted in cell(More)
Dissertation for the degree of Doctor of Technology to be presented with due permission for public examination and debate in Auditorium Abstract: The current study analyzes the different modes of variation in methane fluxes from different microsites of a boreal mire. The results emphasize the importance of microsite characteristics, water table and(More)
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