Search results for "PTE"
showing 10 items of 2238 documents
Eel immune response to Vibrio vulnificus infection. Host-pathogen relationship
2013
The European eel (Anguilla anguilla), has experienced a dangerous decline in recruitment, yield and stock over the last 30 years and this decline is likely to continue into the future. Several major threats are responsible for this situation, including overfishing of glass eels for consumption, new infections by introduced pathogens, dams and blocking of migration routes. The lack of knowledge concerning the biology of this species represents a handicap to the conservation and recovery of the population. Nevertheless,the eel farming industry is increasing, therefore it could be considered one of the major risks for wild eel stock perpetuation, which is threatened principally by the lack of …
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
2021
Resumen basado en el de la publicación Resumen en inglés El objetivo principal es la identificación de las representaciones de los estudiantes sobre la idea de cantidad de sustancia y para ver en qué medida la enseñanza de química establecida en las escuelas secundarias contribuye a darles una visión más atomista de la materia. Los resultados obtenidos confirman que los estudiantes, al completar sus estudios, prácticamente no han cambiado su concepción "globalista" de la cantidad de sustancias, y solo la mitad de los que estudiaron la química domina la actividad necesaria para poder entender el concepto de mol. ESP
High‐resolution 3D forest structure explains ecomorphological trait variation in assemblages of saproxylic beetles
2022
1. Climate, topography and the 3D structure of forests are major drivers affecting local species communities. However, little is known about how the specific functional traits of saproxylic (wood-living) beetles, involved in the recycling of wood, might be affected by those environmental characteristics. 2. Here, we combine ecological and morphological traits available for saproxylic beetles and airborne laser scanning (ALS) data in Bayesian trait-based joint species distribution models to study how traits drive the distributions of more than 230 species in temperate forests of Europe. 3. We found that elevation (as a proxy for temperature and precipitation) and the proportion of conifers p…
Mosquitos (Diptera: Culicidae) de los parques naturales de la Comunidad Valenciana
2013
La familia Culicidae incluye algunas de las especies de dípteros más relevantes en el ámbito de la Salud Pública, no solo por las molestias que son capaces de causar debido a su tipo de alimentación hematófaga, sino por su capacidad para actuar como vectores de enfermedades de afección humana. Por este motivo, los mosquitos han sido, desde siempre, una de las dianas predilectas en los programas de control establecidos para la regulación de sus poblaciones y, por tanto, como medida profiláctica para evitar la propagación de las enfermedades que son capaces de vehicular. Estas características, los convierten en organismos ligados íntimamente a las sociedades humanas, por lo que el conocimient…
Impiego di colla di fibrina (tissucol) nella pterigectomia. Nostra esperienza.
2011
Informació economicofinanceraen l’empresa farmacèutica
2019
En aquest tema es descriu a nivell bàsic la comptabilitat i els comptes anuals, on l'estudiant ha de saber llegir els comptes anuals. Es revisen ràtios bàsics de comptabilitat i s'estudia el marge brut i el punt d'equilibri. D'altra banda s'ensenya a l'alumne a calcular els preus dels medicaments inclosos imposats i recàrrec d'equivalència.
Upper Caraş River (Danube watershed) fish populations fragmentation – technical rehabilitation proposal
2017
Abstract We propose a technical solution for fish movement based on the flow of water over a spill threshold. Such barriers are common in the Danube system. The proposed system has a range of operating components which are easily detachable from the spill threshold, are resistant to corrosion and will not harm the fish. In fact, if designed to complement swimming abilities of target fish, it should provide adequate passage for both adults and juveniles. If implemented correctly, the design may offer a solution to help displaced fish recolonize upstream habitats.
A review of methods to assess connectivity and dispersal between fish populations in the Mediterranean Sea
2013
Fish populations are linked to each other via dispersal of individuals as eggs, larvae, juveniles or adults. The understanding of this process, known as connectivity, has a pivotal role for the management of overexploited fish stocks and the development of accurate conservation strategies. Knowledge on connectivity and fish movements is considered fundamental toward the correct design of marine protected area (MPA) networks for the achievement of the benefits of protection. Connectivity patterns are still largely unknown worldwide. A general lack of knowledge is particularly evident for the Mediterranean Sea where few studies dealing with this topic have been carried out and some methods, c…
Lycopodiidae for the “Flora Critica d’Italia”: material and methods
2015
Procedures are presented that were followed during the preparation of the first pteridophyte family treatments for the “Flora Critica d’Italia”: Lycopodiaceae, Isoetaceae, Selaginellaceae. The work was mainly based on the study of literature and herbarium specimens. In some cases SEM observation of spores has proved useful. Data collected from herbarium specimens and other verified sources were loaded into a database, from which a distribution map was prepared for each taxon. Several preliminary papers have been published, and for each family a taxonomic conspectus, with type designations, maps and an identification key, has been prepared. The treatment of these three families for the “Flor…
Desarrollo de métodos inmunoquímicos para el análisis en alimentos de fungicidas inhibidores de la succinato deshidrogenasa
2017
El uso de plaguicidas constituye una forma eficaz y hoy por hoy necesaria para combatir gran parte de las plagas que afectan a los cultivos agrícolas. Sin embargo, su uso puede dar lugar a la aparición de residuos en los alimentos que llegan al consumidor, lo que puede derivar en un problema de seguridad alimentaria. Por ello, es necesario el desarrollo de métodos analíticos altamente sensibles y selectivos para la monitorización de dichos residuos, que permitan la detección de concentraciones lo más bajas posibles. En este contexto, en esta Tesis Doctoral se ha abordado el desarrollo de métodos inmunoquímicos de elevada sensibilidad y selectividad para el análisis en muestras de alimentos …