Results 31 to 40 of about 895,341 (164)
Emergence of catalytic function in prebiotic information-coding polymers
Life as we know it relies on the interplay between catalytic activity and information processing carried out by biological polymers. Here we present a plausible pathway by which a pool of prebiotic information-coding oligomers could acquire an early ...
Alexei V Tkachenko, Sergei Maslov
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La Création du Monde, Œuvre monumentale de Jean-Pierre Pincemin
This article describes a study of a huge work of art realized by Jean-Pierre Pincemin which state of conservation was in a necessity of emergency restoration.
Coline Braye
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The efficient preparation of novel bioactive peptide drugs requires the availability of reliable and accessible chemical methodologies together with suitable analytical techniques for the full characterisation of the synthesised compounds.
Roser Segovia +4 more
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Background and Purpose: Eucalypt is an important raw material source of several industrial purposes. However, some eucalypt essences are still underutilized, possibly due to the lack of more embracing information about their properties.
Marta Cristina de Jesus Albuquerque Nogueira +7 more
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Zebrafish Embryos Display Characteristic Bioelectric Signals during Early Development
Bioelectricity is defined as endogenous electrical signaling mediated by the dynamic distribution of charged molecules. Recently, increasing evidence has revealed that cellular bioelectric signaling is critical for regulating embryonic development ...
Martin R. Silic +4 more
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Characterization of factors involved in the coupling of 3' end processing and splicing and in the 3' end formation of mRNA precursors [PDF]
Eukaryotic mRNA precursors are processed at their 5’ and 3’ ends and are spliced prior to their export from the nucleus to the cytoplasm. Although all three processing reactions can be studied separately in vitro, they are coupled in vivo.
Kyburz Kooznetsoff, Andrea Martina
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Reconstitution of CPSF active in polyadenylation: recognition of the polyadenylation signal by WDR33 [PDF]
Cleavage and polyadenylation specificity factor (CPSF) is the central component of the 3' processing machinery for polyadenylated mRNAs in metazoans: CPSF recognizes the polyadenylation signal AAUAAA, providing sequence specificity in both pre-mRNA ...
Zavolan, Mihaela +7 more
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Neutral organic electron-donor 7, formally a pyridinylidene carbene dimer, effects reductive cleavage of C-O sigma-bonds in acyloin derivatives Ar(CO)CRR'OX (X = OAc, OPiv, OBz, OMs) and this represents the first cleavage of C-O sigma-bonds by a neutral ...
Cutulic, S.P.Y. +4 more
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The Gammacoronavirus infectious bronchitis virus (IBV) causes a highly contagious and economically important respiratory disease in poultry. In the laboratory, most IBV strains are restricted to replication in ex vivo organ cultures or in ovo and do not ...
Phoebe Stevenson-Leggett +2 more
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The Effects of Ethanol and Strontium on Growth and Development of Two-Cell Arrested Mouse Embryos [PDF]
Background Arresting at a certain stage of development like the two-cell stage could be one of the causes of infertility. The aim of this study is to evaluate the effects of ethanol and strontium on growth and development of mice embryos arrested at ...
Mohammad Reza Darabi +2 more
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