منابع مشابه
Beyond Kon-Tiki: did Polynesians sail to South America?
11 JUNE 2010 VOL 328 SCIENCE www.sciencemag.org C R E D IT : P H IL IP D E B A Y /C O R B IS IT WAS LATE IN THE DAY IN DECEMBER 2007 when the curator pulled out a half-dozen ancient human skulls from dusty drawers in the museum in Concepción, Chile. The skulls, of varying ages, had been found during the past century by locals as well as scientists on the windswept island of Mocha, 30 kilometers...
متن کاملThe conserved transmembrane proteoglycan Perdido/Kon-tiki is essential for myofibrillogenesis and sarcomeric structure in Drosophila
Muscle differentiation requires the assembly of high-order structures called myofibrils, composed of sarcomeres. Even though the molecular organization of sarcomeres is well known, the mechanisms underlying myofibrillogenesis are poorly understood. It has been proposed that integrin-dependent adhesion nucleates myofibrils at the periphery of the muscle cell to sustain sarcomere assembly. Here, ...
متن کاملKon-tiki enhances PS2 integrin adhesion and localizes its ligand, Thrombospondin, in the myotendinous junction.
Cell-extracellular-matrix adhesion is mediated by cell receptors, mainly integrins and transmembrane proteoglycans, which can functionally interact. How these receptors are regulated and coordinated is largely unknown. We show that the conserved transmembrane Drosophila proteoglycan Kon-tiki (Kon, also known as Perdido) interacts with the αPS2βPS integrin (αPS2 is encoded by inflated and βPS by...
متن کاملMolecular mechanism of central nervous system repair by the Drosophila NG2 homologue kon-tiki
Neuron glia antigen 2 (NG2)-positive glia are repair cells that proliferate upon central nervous system (CNS) damage, promoting functional recovery. However, repair is limited because of the failure of the newly produced glial cells to differentiate. It is a key goal to discover how to regulate NG2 to enable glial proliferation and differentiation conducive to repair. Drosophila has an NG2 homo...
متن کاملEmissions and Char Quality of Flame-Curtain "Kon Tiki" Kilns for Farmer-Scale Charcoal/Biochar Production
FLAME CURTAIN BIOCHAR KILNS Pyrolysis of organic waste or woody materials yields charcoal, a stable carbonaceous product that can be used for cooking or mixed into soil, in the latter case often termed "biochar". Traditional kiln technologies for charcoal production are slow and without treatment of the pyrolysis gases, resulting in emissions of gases (mainly methane and carbon monoxide) and ae...
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ژورنال
عنوان ژورنال: Nature
سال: 1969
ISSN: 0028-0836,1476-4687
DOI: 10.1038/223185a0