Browsing by Title Artículos de revistas
Now showing items 631-650 of 4968
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(2011)Biological transformation of the meroditerpenoid, stypotriol triacetate (1) by the fungi Aspergillus niger, Cunninghamella elegans, Gibberella fujikuroi and Mucor plumbeus was studied. The incubation of 1 with A. niger ...
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(TAYLOR & FRANCIS LTD, 2008-01-09)Continued investigation of the marine alga Laurencia claviformis has led to the isolation of pacifenol, a halogenated sesquiterpene as the major metabolite. The microbial transformation of pacifenol is reported. It was ...
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(American Society of Plant Biologists, 2014)Cell polarity manifested by asymmetric distribution of cargoes, such as receptors and transporters, within the plasma membrane (PM) is crucial for essential functions in multicellular organisms. In plants, cell polarity ...
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(Nature, 2015)The anklebone (astragalus) of dinosaurs presents a characteristic upward projection, the 'ascending process' (ASC). The ASC is present in modern birds, but develops a separate ossification centre, and projects from the ...
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(University of California Press, 1997)An unusual pattern has been described in Patagonian forests, where bird species diversity seems to be inversely correlated with vegetation complexity. To test the occurrence of this pattern in the northern Nothofagus forests ...
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(American Physical Society, 2017)Exact electromagnetic wave solutions to Maxwell equations on anisotropic Bianchi I cosmological spacetime backgrounds are studied. The waves evolving on Bianchi I spacetimes exhibit birefringence (associated with linear ...
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(Universidad Católica del Norte, 2014)It is known that commutative algebras satisfying the identity of degree four ((yx)x)x +γy((xx)x) = 0, with γ in the field and γ 6= −1 are locally nilpotent. In this paper we study the birrepresentations of an algebra A ...
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(Blackwell Munksgaard, 1998)© 1998 International Union of Crystallography The structures of [Cu(C12H8N2)2(S4O 6)], (I), and [Cu(C12H8N2)3](S4O 6).5H2O, (II), are reported. Compound (I) consists of infinite polymeric chains where copper displays a ...
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(International Union of Crystallography, 2000)© 2000 International Union of Crystallography.The title complex, [Ru(C2H3N)2(C6H6N2)(C18H15P)2](PF6)2.-CH4O, is the third of a series of ruthenium complexes containing two triphenylphosphine groups in a trans arrangement, ...
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(1990)Bis[4-bromo-2-(isopropyliminomethyl)- phenolato]nickel(II), [Ni(CIoH]IBrNO)2], M, = 540.90, triclinic, Pi, a = 8.789 (6), b = 10.203 (7), c = 6.075 (4) A, a=103.92(5), /3=80-23(5), y= 110.21 (5) °, V = 493-9 (6)/~ 3, ...
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(Pergamon Journals Ltd., 1986-07-08)Callus cultures of 34 Berberís celllines representing 33 species were screened for alkaloids using TLC and HPLC. Jatrorrhizine was always found to be a major constituent; two B. stolonifera lines were the richest ...
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(American Chemical Society, 1985-01-21)The stem bark of Laurelia sempervirens R. et P. (Monimiaceae, subfamily Atherospermoideae) is a rich source of aporphinoids and has also been shown to contain a complex mixture of unidentified bisbenzylisoquinolines (1). ...
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(Pergamon Press plc., 1988-01-27)Bisbenzylisoquinoline alkaloid-producing cell cultures of Berberis stolonifera were fed with 14C-Iabelled tyrosine, tyramine, and several chiral l-benzyl-l,2,3,4-tetrahydroisoquinolines. Berbamunine subsequently isolated from ...
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(Wiley-VCH Verlag GmbH, 2020)Using the Heyd, Scuseria, and Ernzerhof (HSE) hybrid functional, with the range-separation parameter modified to match the CdTe bandgap, the electronic structure and thermodynamic properties of bismuth-doped CdTe are ...
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(Nature Research, 2021)Armoured dinosaurs are well known for their evolution of specialized tail weapons-paired tail spikes in stegosaurs and heavy tail clubs in advanced ankylosaurs(1). Armoured dinosaurs from southern Gondwana are rare and ...
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(JOHN WILEY, 2006-11-05)The phase behavior of blends containing N-alkylitaconamic acid-co-styrene copolymers (NAIA-co-S) with poly(N-vinyl-2-pyrrolidone) (PVY) of two different weight average molecular weights (M-w($) over bar), poly(2-vinylpyridine) ...
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(2006)The phase behavior of blends containing N-alkylitaconamic acid-co-styrene copolymers (NAIA-co-S) with poly(N-vinyl-2-pyrrolidone) (PVP) of two different weight average molecular weights (M̄w̄), poly(2-vinylpyridine) (P2VPy) ...
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(John Wiley and Sons Ltd.contentdelivery@wiley.com, 2020)
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(John Wiley and Sons Inc., 2014)© 2014 Wiley Periodicals, Inc.In this article, innovative applications of amphiphilic triblock and pentablock copolymers in the synthesis of gold nanoparticles are reported. The synthesis of gold nanoparticles is performed ...
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(1989)It has been established that early events in lymphocyte activation involve a rise in intracellular Ca++ as well as changes in the flux of other ions. Although a Ca++ channel has been postulated to participate in the early ...
