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Sciara as an experimental model for studies on the evolutionary relationships between the zygotic, maternal and environmental primary signals for sexual development.

REA Auditado

Sex determination refers to the developmental programme that commits the embryo to either the male or the female pathway. There are a plethora of mechanisms via which gender is decided. These mechanisms can be classified into three main categories depending on the origin of the primary, genetic, sex-determination signal, which can be zygotic, maternal or environmental. In the dipteran Sciara, the zygotic signal is a consequence of the maternal signal, and this in turn can be a consequence of the environmental signal.

Tema: general: 

• Ciencias›Biología

Fish Gonadogenesis. Part I: Genetic and Environmental Mechanisms of Sex Determination

REA Auditado

Many species of fish produced in aquaculture or for the ornamental fish trade exhibit sexual dimorphism in growth, age at maturity, secondary sexual characters, or other traits of interest. This has led to a desire to produce populations of only one sex for commercial ongrowing. Although direct sex reversal via manipulation of sex differentiation is used commercially (e.g., in tilapia aquaculture), in most cases there is a need to understand the sex determination system to some extent and manipulate this to produce monosex fish.

Tema: general: 

• Ciencias

Temperature-Dependent Sex Determination in Fish Revisited: Prevalence, a Single Sex Ratio Response Pattern, and Possible Effects of Climate Change

REA Auditado

[Background] In gonochoristic vertebrates, sex determination mechanisms can be classified as genotypic (GSD) or temperature-dependent (TSD). Some cases of TSD in fish have been questioned, but the prevalent view is that TSD is very common in this group of animals, with three different response patterns to temperature. [Methodology/Principal Findings] We analyzed field and laboratory data for the 59 fish species where TSD has been explicitly or implicitly claimed so far.

Tema: general: 

• Ciencias

Where Is Music？

REA Catalogado

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3

Promedio: 3 (1 reseña)

This resource is basically the notes from an assigned reading, which includes a reflexion as to whether things just happen or whether they happen because they are meant to happen. I suggest this reading for a basic philosophy course in which the concepts of determinism and libertarianism are discussed.

Tema: general: 

• Filosofía y Religión›Filosofía›Obras Generales y Temas Especiales

Consommation alimentaire - alcoolique et perception du risque: exemple d'une problématique de "santé" dans les terres italiennes caractérisées par la production du vin (Udine, Nord d'Italie)

REA Auditado

The main aim of this study is to understand the relationship between alcohol
consumption and risk perception of these health determinants among general
population in Italian wine producers regions (Udine, Northern Italy).
800 people were asked about these and other items (different ways of alcohol
consumption; risks perception; opinions about �to drink� meaning) and significant
differences arose in particular between generations (below or above 25 years old),
between gender and between different types of alcohol consumer.

Tema: general: 

• Ciencias›Biología

Network mapping and usage determination

REA Auditado

A large computer network such as the Internet contains millions of computers, services and users, interconnected in a complicated and ever changing web. This article provides an introduction to network mapping and usage determination – the study of the physical connectivity of a computer network and how it is being utilised. The article discusses the different processes involved in gathering information about computer networks, such as host discovery, port scanning, service detection and operating system detection.

Tema: general: 

• Ingeniería y Ciencias Aplicadas›Ingeniería›Ingeniería (General)

Development of different damage pathways in Norway lobster (Nephrops norvegicus) stored under different chilling systems

REA Auditado

Slurry ice is a biphasic system that has recently shown a number of advantages when employed as a chilling medium for fish species. Its use for a crustacean species of high commercial value, Norway lobster (Nephrops norvegicus), was evaluated in parallel with traditional flake icing. Quality parameters related to microbial spoilage and biochemical breakdown (aerobe and psychrotroph counts, pH, K value, total volatile amines, trimethylamine, free fatty acids and non-enzymatic browning reactions) were assessed and compared with sensory (carapace, eyes, gills, odour and flesh) acceptability.

Tema: general: 

• Ciencias

Recomendaciones para la aplicación de algunos métodos analíticos incluidos en el reglamento CEE 2568/91 relativo a las características de los aceites de oliva y de orujo de oliva

REA Auditado

[ES] Entre los métodos analíticos aceptados oficialmente por la Unión Europea para su aplicación a los aceites de oliva y los aceites de orujo de oliva, las determinaciones de esteroles, trilinoleína, isómeros trans de los ácidos grasos y ceras han mostrado algunas dificultades en su aplicación.
El estudio de dichos problemas ha permitido establecer diversas modificaciones y recomendaciones que facilitan la práctica de los métodos y mejoran la fiabilidad de los resultados.

Tema: general: 

• Ciencias›Química

La determinación temporal del enunciado (I) Fundamentación teórica

REA Auditado

Se inicia con este una serie de trabajos sobre los determinadores temporales del enunciado que, en plazo breve, irán publicándose en esta misma colección. Aquí se presentan nuestros conceptos de enunciado y de determinación temporal. Concebimos el enunciado como unidad abstracta que integra en un todo el proceso de enunciación y la actualización de un esquema oracional.

Tema: general: 

• Filosofía y Religión›Filosofía

ESTIMATION PROBLEMS FOR SATELLITE ORBIT AND ATTITUDE DETERMINATION AND FOR GPS-BASED REMOTE IONOSPHERIC SENSING

REA Auditado

Three separate applications of estimation problems in satellite navigation and attitude determination and in ionospheric scintillation monitoring have been solved numerically.

Tema: general: 

• General