127,234 research outputs found
[Letter from M. C. Gonzalez to John J. Herrera - May 9, 1956]
No full textLetter to John J. Herrera from M.C. Gonzalez, dated May 9, 1956 asking Herrera to endorse Gonzalez and support him as he runs for office of the National President of LULAC. Gonzalez was the presenter of the nomination speech for National President for John J. Herrera
General Correspondence; Gonzalez, Cruz E.; 1889
No full textLetters to John M. Whitaker, 1888 to 1896Letter dated 22 February 1888 at Wellsville, Cache Co., Utah, from Charles Gunnell to John M. Whitaker; Letter dated 30 March 1889 at Chihuahua, Mexico, from C. E. Gonzalez to John M. Whitaker at New York; [Various memos]; Letter dated 21 September 1893 at Logan, Utah, from C. D. Fjeldsto(?) to John M. Whitaker; Letter dated 9 January 1895 at Salt Lake City from Ralph L. Graves to John M. Whitaker; Letter dated 27 May 1896 at Scranton, Pennsylvania, from Amos A. Fuller to John M. Whitaker at Salt Lake City, Uta
El lenguaje familiar como medio de expresión de espacios comunes en Natalia Ginzburg y Carmen Martín Gaite
No full textIl presente studio intende analizzare i numerosi luoghi comuni rilevati nella scrittura di Carmen Martín Gaite e Natalia Ginzburg, due scrittrici appartenenti a due culture caratterizzate per le loro proffonde interrelazioni storiche. In particolare, lo studio si incentrerà sull’analisi del linguaggio famigliare che caratterizza la produzione narrativa di entrambi le scrittrici, dopo aver tracciato una panoramica generale sulle diverse tematiche che accomunano sia la loro opera che la loro personalità
On the origin of the mitochondrial genetic code: Towards a unified mathematical framework for the management of genetic information
No full textThe origin of the genetic code represents one of the most challenging problems in molecular evolution. The genetic code is an important universal feature of extant organisms and indicates a common ancestry of different forms of life on earth. Known variants of the genetic code can be mainly divided in mitochondrial and nuclear classes. Here we provide a new insight on the origin of the mitochondrial genetic code: we found that its degeneracy distribution can be explained by using a mathematical approach recently developed for the description of the Euplotes nuclear variant of the genetic code. The results point to a primeval mitochondrial genetic code composed of four base codons, which we call tesserae, that, among other features, exhibit outstanding error detection capabilities. The theoretical description suggests also a formulation of a plausible biological theory about the origin of protein coding. Such theory is based on the symmetry properties of hypothetical primeval chemical adaptors between nucleic acids and amino acids (ancient tRNA’s). Our paper provides a unified mathematical framework for different hypotheses on the origin of genetic coding. Also, it contributes to revisit our present view about the evolutionary steps that led to extant genetic codes by giving a new first-principles perspective on the difficult problem of the origin of the genetic code, and consequently, on the origin of life on earth
On the Dunford property (C) for bounded linear operators SR and RS
No full textIn this paper we show that if S in L(X; Y ) and R in L(Y;X),
X and Y complex Banach spaces, then the products RS and SR share the Dunford property (C
Women's representation in politics: The effect of electoral systems
No full textWe study how electoral systems affect the presence of women in politics in the context of Spanish municipal elections, in which national law mandates that municipalities follow one of two electoral systems: a closed-list system in which voters pick one party-list, or an open-list system, in which voters pick individual candidates. Using a regression discontinuity design, we find that the closed-list system increases the share of women among candidates, councilors, and mayors, by 4.1, 4.8, and 7.1 percentage points, respectively. We develop a model that allows us to test for three possible mechanisms: gender differences in the supply of candidates between the electoral systems, voter bias, and party bias. Model estimation indicates that a combination of supply differences and party bias best explains the results
Postpartum interval, ovarian-uterine relationships of beef cattle and effect of monensin fed to prepuberal heifers under natural and cultivated grazing conditions in the Venezuelan llanos
No full textIncludes bibliographical references (leaves 173-200)A group of three experiments were conducted in the Central Llanos of Venezuela to determine physiological reproductive effects of ovaries transplanted to the uterine muscle or parotid muscle, the effect of feeding monensin on the age, weight at puberty of prepuberal heifers grazing fertilized Aleman grass (Echinochloa polystachya, (H.B.K.) Hitchc) pastures and the postpartum interval from calving to first estrus of Bos indicus and Bos Taurus cows under natural grazing of yaraguagrass (Hyparrhenia rufa (Nees) Staf) pastures. In the first study, the ovarian transplants were successfully accomplished in 94% of the cows (17/18) and in 83% of the heifers (5/6). Autotransplantation of active ovaries (AO) of mature cycling cows to the myometrium of the uterine horn (U) or the parotid muscles (P) with the inactive ovaries (IO) left in situ resulted in more estrus activity (P.05) vs M and F heifers which had similar scores. All M heifers (100%) reached puberty (10/10) (P<.075), while puberty was reached in 80% of F heifers (8/10) and in 60% of C heifers (6/10). Administration of monensin to the prepuberal heifers stimulated total ovarian volume significantly (P<.05) over the control heifers but did not differ from F heifers. Fertility was enhanced in M heifers with 20% pregnancy compared to no heifers in the concentrate or grass-fed groups became pregnant..
Author Correction: Sustainable oxygen evolution electrocatalysis in aqueous 1 M H2SO4 with earth abundant nanostructured Co3O4 (Nature Communications, (2022), 13, 1, (4341), 10.1038/s41467-022-32024-6)
No full textThe original version of this Article contained an error in Fig. 5, in which x-axis beneath panel c was incorrectly labelled. The correct version of Fig. 5 is: (Figure presented.)
Morphological and Surface Potential Characterization of Protein Nanobiofilm Formation on Magnesium Alloy Oxide: Their Role in Biodegradation
No full textThe formation of a protein nanobiofilm on the surface of degradable biomaterials such as magnesium (Mg) and its alloys influences metal ion release, cell adhesion/spreading, and biocompatibility. During the early stage of human body implantation, competition and interaction between inorganic species and protein molecules result in a complex film containing Mg oxide and a protein layer. This film affects the electrochemical properties of the metal surface, the protein conformational arrangement, and the electronic properties of the protein/Mg oxide interface. In this study, we discuss the impact of various simulated body fluids, including sodium chloride (NaCl), phosphate-buffered saline (PBS), and Hanks' solutions on protein adsorption, electrochemical interactions, and electrical surface potential (ESP) distribution at the adsorbed protein/Mg oxide interface. After 10 min of immersion in NaCl, atomic force microscopy (AFM) and scanning Kelvin probe force microscopy (SKPFM) showed a higher surface roughness related to enhanced degradation and lower ESP distribution on a Mg-based alloy than those in other solutions. Furthermore, adding bovine serum albumin (BSA) to all solutions caused a decline in the total surface roughness and ESP magnitude on the Mg alloy surface, particularly in the NaCl electrolyte. Using SKPFM surface analysis, we detected a protein nanobiofilm (∼10-20 nm) with an aggregated and/or fibrillary morphology only on the Mg surface exposed in Hanks' and PBS solutions; these surfaces had a lower ESP value than the oxide layer.Materials Science and EngineeringTeam Yaiza Gonzalez GarciaTeam Arjan Mo
Therapeutic and other interventions to reduce the risk of mother-to-child transmission of HIV-1 in Europe. The European Collaborative Study
No full textC. Thorne, M.-L. Newell, A. Bailey, C.S. Peckham, C. Giaquinto, E. Ruga, A. De Rossi, D. Truscia, I. Grosch-Worner, A. Schafer, J. Mok, F. Johnstone, F. Omenaca, J. Jiminez, C.De Alba, M.C. Garcia-Rodriguez, I. Bates, I. De Jose, F. Hawkins, R. Martinez Zapico, F. Asensi-Botet, M.C. Otero, D. Perez-Tamarit, A. Gonzalez Molina, H. Canosa, H. Scherpbier, K. Boer, A.B. Bohlin, S. Lindgren, E. Belfrage, J. Levy, A. Alimenti, P. Barlow, A. Ferrazin, A. Dre Maria, C. Gotta, V. Maritati, A. Mur, M.T. Rovira, A. Paya, O. Coll,
C. Fortuny, J. Boguna, M. Casellas Caro, Y. Canet, G. Pardi, A.E. Semprini, M. Ravizza, C. Castagna,
S. Fiore, B. Guerra, S. Bianchi, L. Bovicelli, E. Prati, S. Zanelli, M. Duse, A. Soresina, G. Scaravelli,
M. Stegagno, M. De Santis, M.-L. Muggiasca, P. Marchisio, A. Iasci, A. Spinillo, A. Bucceri, E. Grossi,
L. Rancilio, R. Smith, A.-M. Lewi
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