La traducción de la telefonía móvil y de sus manuales de uso

619 p.

Arreta faltaren nahastea eta hiperaktibitatea duten lehen hezkuntzako umeentzako neurriak ikasgelan: erantzun egokia ematearen beharra

[eus] Arreta Faltaren Nahastea eta Hiperaktibitatea (AFNHa) gaur egun ikasgela batean aurki dezakegun nahaste ohikoenetariko bat da. Nahastea pairatzen duten umeek haien errendimendu akademikoan negatiboki eragiten duten zailtasun desberdinei aurre egin behar diete. Irakasleen ezagutza edo parte-hartze eza dela eta, ume horiei arrakasta lortzeko ez zaie beti bere esku jartzen gainontzekoei eskaintzen zaizkien aukera berdinak. Hortaz, irakasleak laguntzea eta ume horiei ikasgela baten barruan ahalik eta erantzun egokien ematea ikerketa lan honen helburua da. Horretarako, bilaketa bibliografiko baten bitartez, nahastean sakondu da eta estrategia desberdinak, metodologia egokia eta IKTen (Informazioaren eta komunikazioaren teknologien) erabilera proposatu dira. Inor atzean utzi gabe, guztientzako kalitatezko eta inklusiboa den hezkuntza defendatzen duen eta itxaropenerako bidea irekitzen saiatzen den lana da.

Dendrorremediación: El uso de Betula alba para monitorizar y reducir el contenido de metales en suelos mineros.

[EN] The intense industrial activity that took place over the past century resulted in large contaminated áreas. This is an important risk to human health and environmental safety. Recent biotechnological techniques for bioremediation include phytoremediation, which uses plants to remove or stabilize contaminants in soils. In our study we choose birch (Betula alba) as the preferred species to remedy mining soils, due to it produces a large biomass and can accumulate high levels of toxic elements in its tissues. The aim of this study was (i) to determine the possibility of using this species in reforestation and/or remediation of mining soils (ii) to elucidate the potential of tocopherol levels as indicators of heavy metal pollution. Trees growing in mining soils with high concentrations of Zn, Cd and Pb were sampled and the metal content in various organs and in tree rings was analyzed. α-tocoferol levels were also analyzed as an indicator of stress. The results showed a different distribution of metals in plant tissues. Zn and Cd had a higher accumulation in leaves, whereas Pb was stored in the timber. In addition, the metal content in tree rings was higher in older rings, leading to a conclusion that older tissues present a detoxification strategy. Furthermore, we saw how the presence of α- tocoferol on branches can be an indicator of metal stress in plants and it can be also used as a monitoring factor.