Browsing by Title Artículos de revistas
Now showing items 3001-3020 of 4968
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(1994)The dinuclear complexes [(η5 C5Me5)RhCl2]2 and [(η6 C6Me6)RuCl2]2 reacted with dppmSe2 giving the cationic compounds [(η5 C5Me5)RhCl&{η2 (SePPh2)2CH2&}]+ (1) and [(η6 C6Me6)RuCl&{η2 (SePPh2)2CH2&}]+ (2), which were isolated ...
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(American Chemical Society, 2014)Acidithiobacillus ferrooxidans is an extremophilic bacterium used in biomining processes to recover metals. The presence in A. ferrooxidans ATCC 23270 of canonical copper resistance determinants does not entirely explain ...
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(Elsevier, 2020)New pterosaur remains from Cerro La Isla, Quebrada Monardes Formation (Lower Cretaceous), Northern Chile, are described. The material comprises mandibular remains preserving dental bases and two vertebrae of the mid cervical ...
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(BioMed Central Ltd., 2014)Background: The homology of the digits in the bird wing is a high-profile controversy in developmental and evolutionary biology. The embryonic position of the digits cartilages with respect to the primary axis (ulnare ...
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(American Chemical Society, 1991-01-02)New developments in the continuum representation of solvent effects are presented. General expressions for the Helmholtz free energy of an arbitrary discrete charge distribution placed in spherical and spheroidal (oblate ...
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(1991)New developments in the continuum representation of solvent effects are presented. General expressions for the Helmholtz free energy of an arbitrary discrete charge distribution placed in spherical and spheroidal (oblate ...
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(Elsevier, 2020)Highly sodium deficient Na0.6NbO3 (NN) ceramics were prepared and characterized. Their mean structure could be described by a mixture of the predominant P polymorph (S.G. Pbma) and the Q phase (S.G. P2(1)ma), at room ...
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(Walter de Gruyter, 2016)We report a new locality for the rodent Chelemys megalonyx in Rinconada de Maipu (Santiago, metropolitan region, central Chile), located in the central valley of Chile, in the eastern slope of the Chilean coastal range. ...
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(2014)Two new diterpenes,2-acetoxy-13-hydroxy-mulin-11-ene and 2-acetoxy-mulin-11, 13-diene,have been isolated from the aerial parts of Azorella spinosa and their structures determined by spectroscopic and conventional chemical ...
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(TAYLOR & FRANCIS LTD, 2007-10-23)The family Trimusculidae produce labdane diterpenes, which differ in the degree and type of esterification with acetoxy and isovaleroyl ester, predominantly. In this article, we describe the isolation from the marine ...
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(Servicio Nacional Geología Minerva, 2015)Several Upper Cretaceous plesiosaur specimens recovered from southernmost Chile are described here. These were collected from upper levels of the Dorotea Formation exposed on three different localities (Sierra Baguales, ...
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(Sociedad Chilena de Quimica, 2002)A new route to the electron rich pentamethylcyclopetadienyl iron complexes (n5-C5Me5)=Cp*) starting from the commercially available dimer [Cp*Fe(CO)2]2, is presented. Reaction of the dimer with I2 in CH2Cl2, affords the ...
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(2002)A new species of lizard, belonging to the montanus group of the genus Liolaemus, is described from the northern Chile. The specimens of the new species were collected in February, 1999 at the Farellones de Tara, Loa Province, ...
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(Wolters Kluwer, 2019)
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(MDPI, 2022)Selective regional iron accumulation is a hallmark of several neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease. The underlying mechanisms of neuronal iron dyshomeostasis have been studied, ...
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(Elsevier, 2014)We describe a new specimen of an elasmosaurid plesiosaur from the upper Maastrichtian of central Chile. The specimen includes a relatively complete dorso-caudal series, a few cervical vertebrae, and a fragmentary pelvic ...
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(2000)The products 3-hydroxy-1,4-benzoxazin-2-one (5) and 5-nitro-2-aminophenol were isolated from the decomposition reaction of the title compounds in aqueous solutions. Two mechanisms are proposed for the formation of these products.