Artículos de revistas: Recent submissions
Now showing items 2121-2140 of 4970
-
(1987)The gramine content in different barley cultivars was not changed under water stress. Proline and glycine-betaine increased as plant water potential decreased. The population growth rate of the aphids Schizaphis graminum ...
-
(Taylor and Francis Inc., 2008)Growth responses of Phragmites australis (Cav.) Trin. Ex Steud, (reed grass), a helophyte species, were examined under in vitro and greenhouse conditions in the presence of various residues from a Kraft pulp mill. Plant ...
-
(1986)Theoretical stellar structure models find that stars later than ∼dM3 are fully convective. It is widely believed that this should result in reduced non-radiative heating and activity levels, however, the observational ...
-
(Sociedad Chilena de Quimica, 2004)Condensation of 4-methylthiobenzaldehyde with 1-nitropropane unexpectedly afforded separable amounts of both (E)- and (Z)-1-(4-methylthiophenyl)-2- nitrobutene. The 1H and 13C NMR spectra allowed the unequivocal assignment ...
-
(1990)The reactions of N,N′-thiobismorpholine, {A figure is presented}, with Fe(CO)5, Fe2(CO)9, Fe3(CO)11 and [(η5-C5H5)Fe(CO)2THF]BF4 were examined. Thiobismorpholine undergoes desulphurization towards Fe(CO)5 with formation ...
-
Mitochondrial DNA variation and systematics of the guanaco (Lama guanicoe, Artiodactyla: Camelidae) (2008)Guanacos (Lama guanicoe) are the most important native herbivorous species in the South American steppes and the dominant ungulate in a fauna rich in rodents but poor in large mammal species. Between 2 and 4 subspecies are ...
-
(1990)The relative thermodynamic stabilities of several ion-pair structures, including intimate and solvent-separated forms, in solution have been studied for the allyl+/F- and allyl-/Li+ model systems. The electrostatic part ...
-
(1992)Infrared spectra of solids Cp*Re(CO)2[PO(OMe)2]X, where Cp* = η5-C5Me5 and X = Cl, Br and I, were recorded. An assignment is offered in which the normal modes are described in terms of "local symmetry". This assignment is ...
-
(1994)Infrared spectra in the region 4000-70 cm-1 are recorded for [1,2-bis(diphenylphosphino)methane](triphenylphosphite)bromo (cis,cis- and trans-dicarbonyl)manganese, and η5-cyclopentadienyl-[1,2-bis(diphenylphosphino)ethan ...
-
(2008)The genus Robsonella Adam, 1938 belongs to the family Octopodidae and can only be identified by some characters present in males. In this work the species Robsonella fontaniana is redescribed from morphological and ...
-
(Sociedad Chilena de Quimica, 2007)This paper describes the electrochemical reduction of nitrite ion in basic media 0.2M KHC03, with glassy carbon or ITO electrodes modified with a conducting polymer derived from Co(II)tetra-3-aminophenyl-porphyrin. Cyclic ...
-
(1992)The solubility behavior in water of different salts of cetyltrimethyl ammonium (CTA+), such as iodide (CTAI), thiocyanate (CTASCN), and perchlorate (CTAClO4), is reported. The order of solubilities is CTASCN > CTAI > ...
-
(1990)The exposure of drugs to light produces photodecomposition processes in several cases: the drugs undergo important chemical changes with a parallel change in their activities or potencies and generally with a loss of their ...
-
(2004)An effective method for controlling nonlinear switching of discrete solitons in arrays of weakly coupled optical waveguides was discussed. The key ideas of the array engineering by means of a steplike variation of the ...
-
(2007)The cytoskeleton and cytoskeletal motors play a fundamental role in neurotransmitter receptor trafficking, but proteins that link GABAB receptors (GABABRs) to the cytoskeleton have not been described. We recently identified ...
-
(2008)The Xylocopinae contains four tribes with species which show a range of nesting habits, from solitary to social. The Manueliini is the sister group to all other Xylocopine tribes, with one genus, Manuelia, of three species ...
-
(1990)The effects of gramine on the bacterium Pseudomonas syringae in culture and on barley leaf disks were studied. Gramine prolonged the lag phase of growth and decreased the size of the population at stationary phase at ...
-
(American Chemical Society, 1987)New cationic high-spin iron(II) complexes with substituted thioureas and with perchlorate or tetrafluoroborate anions (X) were obtained: [FeL6]X2(L = N-ethylthiourea, N,N’-di-n-propylthiourea); [FeLn](ClO4)2(L = ...
-
(Elsevier, 1997)We perform a fully quantum mechanical numerical calculation for the problem of a single electron (or excitation) propagating in an N-site one-dimensional chain in the presence of a single Holstein impurity. We compute the ...
-
(2007)We study surface modes at the edge of a semi-infinite chirped photonic lattice in the framework of an effective discrete nonlinear model. We demonstrate that the lattice chirp can change dramatically the conditions for the ...
