Results 11 to 20 of about 79,825 (49)
Modern cryptogamic ground covers (CGCs), comprising assemblages of bryophytes (hornworts, liverworts, mosses), fungi, bacteria, lichens and algae, are thought to resemble early divergent terrestrial communities.
R. Mitchell +5 more
semanticscholar +1 more source
Oncogenes, Proto-Oncogenes, and Lineage Restriction of Cancer Stem Cells
In principle, an oncogene is a cellular gene (proto-oncogene) that is dysfunctional, due to mutation and fusion with another gene or overexpression. Generally, oncogenes are viewed as deregulating cell proliferation or suppressing apoptosis in driving ...
Geoffrey Brown
semanticscholar +1 more source
Wearable passive upper-limb exoskeletons have been proposed and commercialized as tools to improve the ergonomics of workers in repetitive or physically demanding tasks.
I. Pacifico +12 more
semanticscholar +1 more source
The Oligo–Miocene closure of the Tethys Ocean and evolution of the proto-Mediterranean Sea
The tectonically driven Cenozoic closure of the Tethys Ocean invoked a significant reorganization of oceanic circulation and climate patterns on a global scale. This process culminated between the Mid Oligocene and Late Miocene, although its exact timing
A. Torfstein, J. Steinberg
semanticscholar +1 more source
Mutually stabilizing interactions between proto-peptides and RNA
The close synergy between peptides and nucleic acids in current biology is suggestive of a functional co-evolution between the two polymers. Here we show that cationic proto-peptides (depsipeptides and polyesters), either produced as mixtures from ...
Moran Frenkel-Pinter +9 more
semanticscholar +1 more source
Proto-oncogene Src links lipogenesis via lipin-1 to breast cancer malignancy
Increased lipogenesis has been linked to an increased cancer risk and poor prognosis; however, the underlying mechanisms remain obscure. Here we show that phosphatidic acid phosphatase (PAP) lipin-1, which generates diglyceride precursors necessary for ...
Lintao Song +17 more
semanticscholar +1 more source
Roles of the RET Proto-oncogene in Cancer and Development
RET (REarranged during Transfection)is activated by DNA rearrangement of the 3′ fragment of the receptor tyrosine kinase gene, namely, RET proto-oncogene, with the 5′ fragment of various genes with putative dimerization domains, such as a coiled coil ...
Masahide Takahashi, K. Kawai, N. Asai
semanticscholar +1 more source
Comprehensive single cell transcriptome lineages of a proto-vertebrate
Ascidian embryos highlight the importance of cell lineages in animal development. As simple proto-vertebrates, they also provide insights into the evolutionary origins of cell types such as cranial placodes and neural crest cells. Here we have determined
Chen Cao +9 more
semanticscholar +1 more source
The proto‐Paratethys Sea covered a vast area extending from the Mediterranean Tethys to the Tarim Basin in western China during Cretaceous and early Paleogene.
M. Kaya +14 more
semanticscholar +1 more source
A systematic study of proto-neutron star convection in three-dimensional core-collapse supernova simulations [PDF]
This paper presents the first systematic study of proto-neutron star (PNS) convection in three dimensions (3D) based on our latest numerical fornax models of core-collapse supernova (CCSN).
H. Nagakura +3 more
semanticscholar +1 more source

