Now showing items 1-10 of 931
Directly probing the mechanical properties of the spindle and its matrix
(Rockefeller University Press, 2010-02-22)
Several recent models for spindle length regulation propose an elastic pole to pole spindle matrix that is sufficiently strong to bear or antagonize forces generated by microtubules and microtubule motors. We tested this ...
Ancestry of motor innervation to pectoral fin and forelimb
(Nature Publishing Group, 2010-07-27)
Motor innervation to the tetrapod forelimb and fish pectoral fin is assumed to share a conserved spinal cord origin, despite major structural and functional innovations of the appendage during the vertebrate water-to-land ...
Chromosomes can congress to the metaphase plate before biorientation
The stable propagation of genetic material during cell division depends on the congression of chromosomes to the spindle equator before the cell initiates anaphase. It is generally assumed that congression requires that ...
Probabilistic forecast for twenty-first-century climate based on uncertainties in emissions (without policy) and climate parameters
(American Meteorological Society, 2009-10-01)
The Massachusetts Institute of Technology (MIT) Integrated Global System Model is used to make probabilistic projections of climate change from 1861 to 2100. Since the model’s first projections were published in 2003, ...
Consequences of considering carbon–nitrogen interactions on the feedbacks between climate and the terrestrial carbon cycle
(American Meteorological Society, 2008-08-01)
The impact of carbon–nitrogen dynamics in terrestrial ecosystems on the interaction between the carbon cycle and climate is studied using an earth system model of intermediate complexity, the MIT Integrated Global Systems ...
(American Meteorological Society, 2010-04-15)
Corrigendum: Sokolov, A., and Coauthors, 2009: Probabilistic forecast for twenty-first-century climate based on uncertainties in emissions (without policy) and climate parameters. J. Climate, 22, 5175–5204.
Biogeography of bacterioplankton in lakes and streams of an arctic tundra catchment
(Ecological Society of America, 2007-06)
Bacterioplankton community composition was compared across 10 lakes and 14 streams within the catchment of Toolik Lake, a tundra lake in Arctic Alaska, during seven surveys conducted over three years using denaturing ...
Protein phosphatase 2A plays a crucial role in Giardia lamblia differentiation
The ability of Giardia lamblia to undergo two distinct differentiations in response to physiologic stimuli is central to its pathogenesis. The giardial cytoskeleton changes drastically during encystation and excystation. ...
The environmental toxicant 2,3,7,8-tetrachlorodibenzo-p-dioxin disrupts morphogenesis of the rat pre-implantation embryo
(BioMed Central, 2008-01-02)
Environmental toxicants, whose actions are often mediated through the aryl hydrocarbon receptor (AhR) pathway, pose risks to the health and well-being of exposed species, including humans. Of particular concern are exposures ...
Dendritic signals from rat hippocampal CA1 pyramidal neurons during coincident pre- and post-synaptic activity : a combined voltage- and calcium-imaging study
The non-linear and spatially inhomogeneous interactions of dendritic membrane potential signals that represent the first step in the induction of activity dependent long-term synaptic plasticity are not fully understood, ...