¿Por qué la materia es tan diversa y tiene propiedades tan distintas?

uración (en horas): De 11 a 20 horas. Nivel educativo: Grado

Separatas de artículos de los que es autor Miguel Pelay Orozko, quien dedica alguno de ellos a Luis Ruiz de Aguirre.

Fecha: 1971-1972 / Unidad de instalación: Carpeta 48 - Expediente 7-17 / Nº de pág.: 8 (mecanografiadas)

¿Es tan perjudicial la televisión que ven los jóvenes y adolescentes?

[Es] En este trabajo se presentan los resultados de un estudio piloto realizado en la Comunidad Autónoma del País Vasco con una muestra de sujetos con edades comprendidas entre 12 y 40 años. Dentro de una investigación más amplia donde se pretende relacionar la dieta televisiva y los valores implícitos y explícitos que se perciben en los contenidos televisivos, se exponen algunas diferencias y semejanzas respecto a los hábitos y dieta televisiva de los diferentes grupos de edad. Los datos encontrados nos permiten concluir que los programas más visionados no son los más perniciosos para adolescentes y jóvenes, ni tampoco que el visionado de la televisión impida el desarrollo de otro tipo de actividades.

¿En qué sentido es relativista David Hume?

[ES]En este trabajo tratamos de esclarecer en qué sentido Hume es relativista con relación a la ética y a la estética. El sentimentalismo inherente a su ética y estética hace que, desde el punto de vista de algunos intérpretes, Hume sea un relativista radical con respecto a dichos ámbitos. Sin embargo, tanto el innegable sentimentalismo de Hume como su supuesto relativismo requieren un profundo estudio. Nos valdremos del concepto de regla general para analizar las relaciones entre sentimentalismo y relativismo, y finalmente argumentaremos que si bien tiene sentido calificar a Hume como relativista, su relativismo es moderado y sensato.

La civilización vasca medieval: vida(s), cotidiana(s), mentalidad(es) y cultura(s)

[ES]A lo largo de las páginas de este trabajo se pasa revista a diversas cuestiones que permiten realizar una aproximación a las diversas formas de vida cotidiana y mentalidad del País Vasco y Navarra durante los siglos bajomedievales. Esas cuestiones aluden al primum vivere, al ciclo vital, al control de la vida privada de los individuos y pública de las comunidades por parte de las autoridades, las fiestas, las supersticiones y distintos aspectos relativos a la cultura, como literatura, historiografía y arte.

¿Cuál es la diferencia salarial que puede esperar un licenciado con respecto a un diplomado?

Duración (en horas): Más de 50 horas. Destinatario: Estudiante y Docente

Métodos cuantitativos versus métodos cualitativos en la economía de los Negocios. ¿Es una metodología reconciliable?

Changes in the organizational environment over the last three decades have increasingly led to traditional theories being called into question, by stimulating the search for new models suited to the new realities of business economics, generating a crisis or scientific revolution that may result in the appearance of a new paradigm. The positivism-phenomenology duality provokes an “epistemological crisis” in research in management sciences. But the existence of both approaches does not imply the election of one scientific orientation in frontal opposition to the other. From these two conceptions of research procedure, the methods applied can be classed into groups, quantitative and qualitative. The quantitative methodologies places great confidence in the ability of data and measurement to represent opinions or concepts, while qualitative methodologies focus on words and relations to describe a reality or situation. While the diversity of methods contribute to its development and indicates the maturity of an area, the methods must be suitably implemented to obtain significant, valid results. The methodology to be used is not going to depend solely on the type of study or the reality under examination, but also on the stage the research process has reached.

Study of Interaction Force between Antigen and Antibody Using Flow Chamber Method

A parallel plate flow chamber was used to study the interaction force between human IgG (immobilized on a chip surface as ligand) and goat anti-human IgG (immobilized on microspheres surface as receptor). First, it was demonstrated that the binding force between the microspheres and the chip surface came from the bio-specific interaction between the antigen and the antibody. Secondly, it was obtained that the critical shear rate to detach microspheres from the chip surface increases with the ligand surface concentration. Finally, two models to estimate the antigen-antibody bond strength considering bonds' positions were proposed and analyzed.

Visualization of molecule interaction between antigen and antibody - One of ellipsometric imaging applications

It is to investigate molecule interactions between antigen and antibody with ellipsometric imaging technique and demonstrate some features and possibilities offered by applications of the technique. Molecule interaction is an important interest for molecule biologist and immunologist. They have used some established methods such as immufluorcence, radioimmunoassay and surface plasma resonance, etc, to study the molecule interaction. At the same time, experimentalists hope to use some updated technique with more direct visual results. Ellipsometric imaging is non-destructive and exhibits a high sensitivity to phase transitions with thin layers. It is capable of imaging local variations in the optical properties such as thickness due to the presence of different surface concentration of molecule or different deposited molecules. If a molecular mono-layer (such as antigen) with bio-activity were deposited on a surface to form a sensing surface and then incubated in a solution with other molecules (such as antibody), a variation of the layer thickness when the molecules on the sensing surface reacted with the others in the solution could be observed with ellipsometric imaging. Every point on the surface was measured at the same time with a high sensitivity to distinguish the variation between mono-layer and molecular complexes. Ellipsometric imaging is based on conventional ellipsometry with charge coupled device (CCD) as detector and images are caught with computer with image processing technique. It has advantages of high sensitivity to thickness variation (resolution in the order of angstrom), big field of view (in square centimeter), high sampling speed (a picture taken within one second), and high lateral resolution (in the order of micrometer). Here it has just shown one application in study of antigen-antibody interaction, and it is possible to observe molecule interaction process with an in-situ technique.

Es más barata la prima del seguro de automóvil para las mujeres?

Duración (en horas): Más de 50 horas. Destinatario: Estudiante y Docente

¿Es positivo el conflicto en la Escuela?

Duración (en horas): De 31 a 40 horas. Destinatario: Estudiante y Docente

¿Que es el Codigo de Conducta para la Pesca Responsable?

(PDF contains 19 pages)

¿Es rentable invertir en nueva maquinaría para fabricar paneles solares?

Duración (en horas): De 21 a 30 horas. Destinatario: Estudiante

Distinct intron DNA structures in simian virus 40 T-antigen and adenovirus 2 E1A genes

Distinct structures delineating the introns of Simian Virus 40 T-antigen and Adenovirus 2 E1A genes have been discovered. The structures, which are centered around the branch points of the genes inserted in supercoiled double-stranded plasmids, are specifically targeted through photoactivated strand cleavage by the metal complex tris(4,7-diphenyl-1,10-phenanthroline)rhodium(III). The DNA sites that are recognized lack sequence homology but are similar in demarcating functionally important sites on the RNA level. The single-stranded DNA fragments corresponding to the coding strands of the genes were also found to fold into a structure apparently identical to that in the supercoiled genes based on the recognition by the metal complex. Further investigation of different single-stranded DNA fragments with other structural probes, such as another metal complex bis(1,10-phenanthroline)(phenanthrenequinone diimine)rhodium(III), AMT (4'aminomethyl-4,5',8 trimethylpsoralen), restriction enzyme Mse I, and mung bean nuclease, showed that the structures require the sequ ences at both ends of the intron plus the flanking sequences but not the middle of the intron. The two ends form independent helices which interact with each other to form the global tertiary structures. Both of the intron structures share similarities to the structure of the Holliday junction, which is also known to be specifically targeted by the former metal complex. These structures may have arisen from early RNA intron structures and may have been used to facilitate the evolution of genes through exon shuffling by acting as target sites for recombinase enzymes.