منابع مشابه
Golgi united are also divided
n page 1133, Bao et al. demonstrate that a neuronal growth factor signals to neighboring cells while also communicating back to the nucleus of its own cell. This two-way signaling is necessary to maintain neuronal survival. In the forward direction , either a soluble or membrane-bound form of the Nrg-1 growth factor activates erbB receptor tyrosine kinases on a variety of adjacent cells. The Nr...
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Phylogenetic analyses on four new bat genomes provide convincing support for the placement of bats relative to other placental mammals, suggest that microbats are an unnatural group, and have important implications for understanding the evolution of echolocation.
متن کاملUnited We Stand; Divided We Fibrillate?
The heart is an electric and biochemical syncytium with its cardiac myocytes coupled by gap junctions that allow the passage of both ionic current and small molecules. Electric coupling allows the rapid spread of depolarization through the atrium, ventricle, and specialized conduction system that is required for coordinated and efficient mechanical function. In addition, these low-resistance in...
متن کاملUnited we stand, divided we fall.
This is an abridged version of Margaret Seward's Donald Taylor Memorial Lecture delivered on February 20, 1996, during the 75th anniversary celebrations of the Royal Army Dental Corps. The annual lecture is held to honour the unique contribution of Brigadier Donald Vernon Taylor CBE to the RADC and to the wider profession of dentistry.
متن کاملWhy Are Ethnically Divided Countries Poor?
This paper presents a dynamic game with capital accumulation of war between ethnic groups. Ethnically divided countries are more prone to fighting wars and the threat of war reduces income. Ethnic divisions lead to pressure for the government to redistribute resources from some ethnic groups to other groups. Groups fight each other to control redistribution policy. The model can account for 70 ...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2003
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb1616iti4