Results 21 to 30 of about 90,579 (168)

Transient glare: its effect on the lower threshold of motion [PDF]

open access: yes, 2000
We measured the lower threshold of motion (LTM) of suprathreshold gratings as a function of spatial frequency and contrast, for both transient glare and no-glare conditions. A two alternatives forced choice paradigm, using the method of constant stimuli,
Barraza, Jose Fernando   +1 more
core   +1 more source

Trayectorias del sufragio femenino en Tucumán: los proyectos durante el Segundo Congreso de Municipalidades (1928)

open access: yesDescentrada, 2022
En Argentina, la década de 1920 fue prolífica en la aparición de proyectos que bregaban por los derechos políticos de las mujeres. Los estudios de caso realizados hasta el momento nos develaron los recorridos a nivel provincial y municipal en Santa Fe y ...
María Marta Segura
doaj   +1 more source

Theoretical and experimental study of a new thiosulfonate derivative: Methyl trifluoromethanethiosulfonate, CF3SO2SCH3. Conformational transferability in CX3SO2S-R compounds [PDF]

open access: yes, 2017
Methyl trifluoromethanethiosulfonate, CF3SO2SCH3, was synthesized and characterized by 13C NMR, 19F NMR, and vibrational spectroscopy. This structural study was supported by MP2 and DFT (B3LYP and MPW1PW91) calculations, which revealed a strong ...
Ben Altabef, Aída   +5 more
core   +1 more source

Tucumanin, a β-hydroxy-γ-lactone bistetrahydrofuranic acetogenin from Annona cherimolia, is a potent inhibitor of mitochondrial complex I [PDF]

open access: yes, 2004
A new β-hydroxy-γ-methyl-γ-lactone bistetrahydrofuranic acetogenin, tucumanin, with the infrequent symmetrical threo/trans/threo/trans/ threo relative configuration at the tetrahydrofuran rings was isolated from Annona cherimolia (Annonaceae) seeds.
Alvarez, Olga   +8 more
core   +1 more source

Novel pathway for corrinoid compounds production in lactobacillus [PDF]

open access: yes, 2018
Vitamin B12 or cobalamin is an essential metabolite for humans, which makes it an interesting compound for many research groups that focus in different producer-strains synthesis pathways.
Font, Graciela Maria   +4 more
core   +2 more sources

Hidroquímica de la cuenca del río Calera, provincia de Tucumán, República Argentina

open access: yesEstudios Geologicos, 2007
La cuenca del río Calera se ubica al norte de la provincia de Tucumán, en el noroeste de Argentina. En esta región existe un asentamiento poblacional dedicado casi exclusivamente a la explotación agrícola- ganadera.
C. D’Urso   +3 more
doaj   +1 more source

Ensayo del terrorismo de Estado en Argentina: el Operativo Independencia (Tucumán, 1975-1977)

open access: yesBoletín de Historia Argentina y Americana Dr. Emilio Ravignani, 2021
Este artículo tiene como objetivo aportar a una línea de estudios sobre el surgimiento del terrorismo de Estado en la Argentina, a partir del abordaje del Operativo Independencia, una campaña militar desarrollada en Tucumán entre febrero de 1975 y ...
Santiago Garaño
doaj   +1 more source

Modulation of intestinal microbiota and immunometabolic parameters by caloric restriction and lactic acid bacteria [PDF]

open access: yes, 2018
The objective of this work was to evaluate the effect of a caloric restriction diet with and without the administration of Lactobacillus fermentum CRL1446, Lactobacillus casei CRL431 and Lactococcus lactis CRL1434, on immunemetabolic parameters and the ...
Abeijon Mukdsi, Maria Claudia   +5 more
core   +1 more source

TÉCNICAS DE REGISTRO DE ARTE RUPESTRE EN UN SITIO DE LAS TIERRAS BAJAS DE TUCUMÁN (ARGENTINA)

open access: yesLa Zaranda de Ideas, 2022
Se presentan los resultados del procesamiento y análisis de distintas técnicas de registro y relevamiento del arte rupestre del sitio El Cajoncito, ubicado en un sector de las tierras bajas de Tucumán, caracterizado por ...
Mauro Grezzana
doaj  

Identification and biotechnological characterization of lactic acid bacteria isolated from chickpea sourdough in northwestern Argentina [PDF]

open access: yes, 2019
Chickpea, a relevant legume worldwide, can be nutritional and functionally improved by fermentation with lactic acid bacteria (LAB). In order to select suitable autochthonous starter cultures, we isolated and identified LAB from kabuli chickpeas ...
Hebert, Elvira Maria   +3 more
core   +1 more source

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