Search results for "NAD"

Fundamentos teóricos básicos para la defensa de un paradigma P2P cooperativo desde la perspectiva de la producción de conocimiento

2015

Con la intención de iniciar el debate sobre el impacto del paradigma P2P en la producción de conocimiento, este artículo analiza en modo superficial la producción de conocimiento en entornos digitales partiendo de una mirada sistémica de los distintos tipos de información, y, especialmente distinguiendo entre información descriptiva e información procedimental. Cabe incidir en el concepto de interoperabilidad de la información, resaltando su importancia para garantizar la autonomía e integración de las comunidades de producción de conocimiento. Una nueva mirada sobre estos conceptos permite abordar algunos de los aspectos más importantes de la producción de conocimiento en la actualidad, mo…

Computers and young workers' wages in europe

2013

In this work evidence was found that wage differentials are in favour of those workers who have a home computer. In order to achieve these results the frontier stochastic method and the Kernel filter for analising errors was used. The research is based on the data provided by the survey of the European Community Household Panel (ECHP). Taking this survey as a starting point, a data panel is built containing those individuals that have remained in the sample for seven consecutives years. The results demonstrate that with the execption of Denmark, workers in each analised country, i.e. Germany, Italy, Spain and the United Kingdom have a wage premium measured by its closeness to the wage front…

Vanadium Modulates Proteolytic Activities and MMP-14-Like Levels during Paracentrotus lividus Embryogenesis

2022

The increasing industrial use of vanadium (V), as well as its recent medical use in various pathologies has intensified its environmental release, making it an emerging pollutant. The sea urchin embryo has long been used to study the effects induced by metals, including V. In this study we used an integrated approach that correlates the biological effects on embryo development with proteolytic activities of gelatinases that could better reflect any metal-induced imbalances. V-exposure caused morphological/morphometric aberrations, mainly concerning the correct distribution of embryonic cells, the development of the skeleton, and the embryo volume. Moreover, V induced a concentration change …

Análisis bibliométrico y sistémico de la relación entre la gestión y el carbono

2022

[EN] This paper aims to present a bibliometric and systemic analysis of the Bibliographic Portfolio (BP) jointly examining the literature related to topics like “Greenhouse gas,” mainly carbon, and “Management,” as published in databases data such as Web of Science and Scopus in the field of economic and social sciences. The Knowledge and Constructivist Development Process methodology —Proknow-C— was used to establish the final portfolio and through the VosViewer program were mapped the various groups or relationships between the studied literature. The paper presents the theoretical and methodological aspects focusing on the areas and countries of study and highlighting the most relevant a…

Orientació o entrenament de líders (entrenador de gerència i d'equips d'alt rendiment)

2004

Arquitectura renacentista "inacabada" de Jerónimo Quijano y su integración en determinados templos de origen gòtico

2014

Jerónimo Quijano fue un arquitecto español que destacó durante la etapa del Renacimiento Pleno en España en el tercio central del siglo XVI. Los edificios seleccionados principalmente son: iglesia de Santiago de Orihuela –Alicante– e iglesia de Santa María del Salvador de Chinchilla –Albacete–. En ambos se construyó una nueva cabecera renacentista e integrada en una nave gótica preexistente y en el caso de haber sido “acabadas” íntegramente con el criterio del maestro serían sin duda ejemplos claves del Renacimiento español. En Orihuela se percibe la necesidad de “descubrir” visualmente el magnífico arco de triunfo romano que hace de portada de la nueva cabecera renacentista, sugiriendo así…

Valoración patrimonial de los yacimientos del Mioceno inferior del Barranco de Campisano de la Cuenca de Ribesalbes-Alcora (Araia d'Alcora, Castelló,…

2019

En el presente trabajo se realiza una valoración patrimonial del conjunto de yacimientos del Mioceno inferior del barranco de Campisano (cuenca de Ribesalbes-Alcora). Los resultados obtenidos al calcular los parámetros según la metodología del Inventario Español de Lugares de Interés Geológico (IELIG) ponen de manifi esto el alto valor científi co y didáctico de la zona, así como un valor turístico y recreativo medio. El riesgo de degradación es medio, por lo que debería ser tenido en cuenta para la protección de los yacimientos a corto plazo. En consonancia con estos datos, se propone la consideración de los yacimientos como LIG (Lugar de Interés Geológico) y su inclusión en el IELIG. In t…

Ovarian steroids and cancer: news on the breast, questions on the reproductive tract

2021

The association between steroid hormones and cancer has been a primary research focus for many years. Reproductive hormones are of particular interest given the fact that several highly prevalent c...

Polycystic ovary and gonadoblastoma in Turner's syndrome.

2007

Turner's syndrome (TS) is characterized by typical facial features, short stature, hypergonadotropic hypogonadism, streak gonads, infertility, hearth and kidney malformations. Typical karyotype is 45,X0; however, 6% of TS have mosaic patterns including Y chromosome or fragments of Y. This karyotype is a risk factor of developing a dysgerminoma in dysgenic gonads. Furthermore, rare cases of polycystic ovary are described in young-adult patients with TS. We describe the clinical case of a 12-year-old girl with TS treated with GH who showed a good response to treatment. She developed an ovary with histological polycystic pattern and a contralateral gonadoblastoma in the streak gonad. Laparosco…

Acute stress may induce ovulation in women

2010

Abstract Background This study aims to gather information either supporting or rejecting the hypothesis that acute stress may induce ovulation in women. The formulation of this hypothesis is based on 2 facts: 1) estrogen-primed postmenopausal or ovariectomized women display an adrenal-progesterone-induced ovulatory-like luteinizing hormone (LH) surge in response to exogenous adrenocorticotropic hormone (ACTH) administration; and 2) women display multiple follicular waves during an interovulatory interval, and likely during pregnancy and lactation. Thus, acute stress may induce ovulation in women displaying appropriate serum levels of estradiol and one or more follicles large enough to respo…