Search results for " original"
showing 10 items of 53 documents
El trono de plata de la imagen original de la Virgen de los Desamparados (1738-1742)
2013
Glochidial infection by the endangered Margaritifera margaritifera (Mollusca) increased survival of salmonid host (Pisces) during experimental Flavob…
2021
AbstractCo-infections are common in host-parasite interactions, but studies about their impact on the virulence of parasites/diseases are still scarce. The present study compared mortality induced by a fatal bacterial pathogen, Flavobacterium columnare between brown trout infected with glochidia from the endangered freshwater pearl mussel, Margaritifera margaritifera, and uninfected control fish during the parasitic period and after the parasitic period (i.e. glochidia detached) in a laboratory experiment. We hypothesised that glochidial infection would increase host susceptibility to and/or pathogenicity of the bacterial infection. We found that the highly virulent strain of F. columnare c…
Los grabados de reproducción como elemento de identificación de pinturas del Museo de Bellas Artes de Valencia
2010
La utilización del grabado por los artistas es usual en la Historia del Arte, pero resulta más evidente en la pintura. Los pintores utilizaron las estampas para copiarlas literalmente ante la ausencia de imaginación o crear nuevas composiciones. Este artículo pretende soslayar el uso más literal para estudiar el grabado, sobre todo el de reproducción, y la estampa devocionaria como un documento histórico para identificar la autoría de ciertas obras consideradas como anónimas en el Museo de Bellas Artes de Valencia, e incluso algunas iconografías. Esto sucede con obras de José Orient, Vicente López y José Antonio Zapata y Nadal. (A)
The Original Position and the Rationality of Primo Levi's Shame
2016
Contrary to what he expected, Primo Levi didn’t experience his life after being released from Auschwitz as cheerful and light-hearted. He – like many other survivors – was haunted by an obscure and solid anguish that he finally identified as springing from a sense of shame or guilt in front of those who were exterminated in the Lager. Levi was unable to either acknowledge his shame as rational or reject it as irrational. This looks, though, like a rather unstable situation calling for some further elucidation. I will thus examine Levi’s shame in light of the dominant conception of practical deliberation and, more specifically, in view of the the role that John Rawls ascribes to the original…
Comentarios a la ponencia del prof. Vives
2015
De los siete apartados en que el Prof. vives divide su artículo, sólo discrepo del apartado sexto, en el que discute la cuestión de fundamentación de los principios de justicia, dando por superados los elementos metafísicos de la filosofía política y del Derecho de Kant. Procederé haciendo primero una exposición de la teoría de la justicia de Rawls, centrándome en los temas kantianos de Rawls. Me referiré después al posible punto de discrepancia con la posición de Vives. Por último, acompañaré a Vives en su defensa del liberalismo. De los siete apartados en que el Prof. vives divide su artículo, sólo discrepo del apartado sexto, en el que discute la cuestión de fundamentación de los princip…
Spermiogram and sperm head morphometry assessed by multivariate cluster analysis results during adolescence (12-18 years) and the effect of varicocele
2016
Artículo científico This work evaluates sperm head morphometric characteristics in adolescents from 12 to 18 years of age, and the effect of varicocele. Volunteers between 150 and 224 months of age (mean 191, n = 87), who had reached oigarche by 12 years old, were recruited in the area of Barranquilla, Colombia. Morphometric analysis of sperm heads was performed with principal component (PC) and discriminant analysis. Combining seminal fluid and sperm parameters provided five PCs: two related to sperm morphometry, one to sperm motility, and two to seminal fluid components. Discriminant analysis on the morphometric results of varicocele and nonvaricocele groups did not provide a useful class…
Comparison of different statistical approaches to evaluate morphometric sperm subpopulations in men.
2016
This study was designed to characterize morphometric sperm subpopulations in normozoospermic men by using different statistical methods and examining their suitability to classify correctly different sperm nuclear morphologies present in human ejaculates. Ejaculates from 21 normozoospermic men were collected for the study. After semen collection and analysis, samples were prepared for morphometric determination. At least 200 spermatozoa per sample were assessed for sperm morphometry by computer-assisted sperm morphometry analysis (CASA-Morph) using fluorescence. Clustering and discriminant procedures were performed to identify sperm subpopulations from the morphometric data obtained. Cluste…
Morphometric comparison by the ISAS
2016
DNA fragmentation has been shown to be one of the causes of male infertility, particularly related to repeated abortions, and different methods have been developed to analyze it. In the present study, two commercial kits based on the SCD technique (Halosperm® and SDFA) were evaluated by the use of the DNA fragmentation module of the ISAS® v1 CASA system. Seven semen samples from volunteers were analyzed. To compare the results between techniques, the Kruskal–Wallis test was used. Data were used for calculation of Principal Components (two PCs were obtained), and subsequent subpopulations were identified using the Halo, Halo/Core Ratio, and PC data. Results from both kits were significantly …
Computer-assisted sperm morphometry fluorescence-based analysis has potential to determine progeny sex
2016
This study was designed to determine the ability of computer-assisted sperm morphometry analysis (CASA-Morph) with fluorescence to discriminate between spermatozoa carrying different sex chromosomes from the nuclear morphometrics generated and different statistical procedures in the bovine species. The study was divided into two experiments. The first was to study the morphometric differences between X- and Y-chromosome-bearing spermatozoa (SX and SY, respectively). Spermatozoa from eight bulls were processed to assess simultaneously the sex chromosome by FISH and sperm morphometry by fluorescence-based CASA-Morph. SX cells were larger than SY cells on average (P < 0.001) although with impo…
Breeding state and season affect interspecific interaction types: indirect resource competition and direct interference.
2011
Indirect resource competition and interference are widely occurring mechanisms of interspecific interactions. We have studied the seasonal expression of these two interaction types within a two-species, boreal small mammal system. Seasons differ by resource availability, individual breeding state and intraspecific social system. Live-trapping methods were used to monitor space use and reproduction in 14 experimental populations of bank voles Myodes glareolus in large outdoor enclosures with and without a dominant competitor, the field vole Microtus agrestis. We further compared vole behaviour using staged dyadic encounters in neutral arenas in both seasons. Survival of the non-breeding over…