Now showing items 1-9 of 9
The relationship between perception and production in songbird vocal imitation: what learned calls can teach us
(Springer-Verlag, 2002-12)
Songbirds produce calls as well as song. This paper summarizes four studies of the zebra finch long call, used by both sexes in similar behavioral contexts. Female long calls are acoustically simpler than male long calls, ...
Molecular characterization and mapping of ATOH7, a human atonal homolog with a predicted role in retinal ganglion cell development
(Springer-Verlag; Springer-Verlag New York Inc., 2002-02)
The human ATOH7 gene encodes a basic helix-loop-helix (bHLH) transcription factor that is highly similar to Drosophila Atonal within the conserved bHLH domain. The ATOH7 coding region is contained within a single exon. We ...
Vascular tumor growth and treatment: Consequences of polyclonality, competition and dynamic vascular support
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2002-03)
A mathematical model is presented to describe the evolution of a vascular tumor in response to traditional chemotherapeutic treatment. Particular attention is paid to the effects of a dynamic vascular support system in a ...
Production and export of dissolved C in arctic tundra mesocosms: the roles of vegetation and water flow
(Kluwer Academic Publishers; Springer Science+Business Media, 2002-09)
To better understand carbon (C) cycling in arctic tundra we measureddissolved C production and export rates in mesocosms of three tundra vegetationtypes: tussock, inter-tussock and wet sedge. Three flushing frequencies ...
Sonoporation: Mechanical DNA Delivery by Ultrasonic Cavitation
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2002-11)
Development of nonviral gene transfer methods would be a valuable addition to the gene-therapy armamentarium, particularly for localized targeting of specific tissue volumes. Ultrasound can produce a variety of nonthermal ...
Expression patterns of neurotrophic factor mRNAs in developing human teeth
(Springer-Verlag, 2002-11)
Neurotrophic factors regulate survival, differentiation, growth and plasticity in the nervous system. In addition, based on their specific and shifting temporospatial expression patterns, neurotrophic factors have been ...
Microbial community composition and function beneath temperate trees exposed to elevated atmospheric carbon dioxide and ozone
(Springer-Verlag, 2002-04)
We hypothesized that changes in plant growth resulting from atmospheric CO 2 and O 3 enrichment would alter the flow of C through soil food webs and that this effect would vary with tree species. To test this idea, we ...
Minimally disturbed, multicycle, and reproducible synchrony using a eukaryotic “baby machine”
(Wiley Subscription Services, Inc., A Wiley Company, 2002-06)
A eukaryotic “baby machine” has been developed that produces synchronized cultures that display up to four synchronous cell cycles. 1 That such cells can be produced implies that methods unable to produce successive ...
Predicting community outcomes from pairwise interactions: integrating density- and trait-mediated effects
(Springer-Verlag, 2002-05)
Understanding how species interactions shape the structure of ecological communities based on pairwise comparisons has been a difficult undertaking for ecologists because effects in reassembled communities can be different ...