Search results for "MTA"
showing 10 items of 174 documents
Jaunākā pirmsskolas vecuma mazākumtautību bērnu latviešu valodas apguve
2019
Jaunākā pirmsskolas vecuma mazākumtautību bērnu latviešu valodas apguve Darba autors: Ira Avsjuka Darba mērķis: pētīt mazākumtautību jaunākā pirmsskolas vecuma bērnu latviešu valodas apguves veicināšanas iespējas rotaļā Izmantotās metodes: 1.Teorētiskās: •pedagoģiskās, psiholoģiskās un metodiskās literatūras analīze; •citu avotu analīze. 2.Empīriskās: •pedagoģiskā novērošana; •vērtēšana; •aprakstošās statistikas metode. Kvalifikācijas darbā izpētīta un izanalizēta pedagoģiskā, psiholoģiskā un metodiskā literatūra par bilingvālo izglītību un rotaļu kā latviešu valodas apguves līdzekli mazākumtautību bērniem. Veikts pētījums par mazākumtautību bērnu latviešu valodas apguvi un tās sekmēšanu. P…
La libertad de la imprenta.
Signat a la fi: José Mor de Fuentes Text a 1 col Sign.: [ ]4
За счастьем в Россию: жизнь новгородских латышей-переселенцев в России, XIX–ХХ века
2017
Книга «За счастьем в Россию» написана по архивным материалам, выявленным в результате разысканий автора и относящимся к истории рода Эглескалн, представители которого переселились с другими крестьянами Курляндской губернии в 1884 году под Новгород на выкупленные ими земли и жили там в латышской колонии. Описывается жизнь и быт латышей-колонистов в XIX–XX веках. На основе собранных документов и устных воспоминаний потомков пролит свет на вопросы о судьбах репрессированных в 1930-е годы колонистов и их родных, оказавшихся волею обстоятельств оторванными от своей исторической Родины.
Advanced piezoresistive sensor achieved by amphiphilic nanointerfaces of graphene oxide and biodegradable polymer blends
2018
This work focuses on the preparation of a piezoresistive sensor device, by exploiting an amphiphilic sample of graphene oxide (GO) as a compatibilizer for poly (lactic acid) (PLA)-Poly (ethylene-glycol) (PEG) blends. The presence of GO determined a high stiffening and strengthening effect, without affecting toughness, and allowed a good stability of mechanical properties up to 40 days. Moreover, GO endowed the materials with electrical properties highly sensitive to pressure and strain variations: the biodegradable pressure sensor showed a responsivity of 35 μA/MPa from 0.6 to 8.5 MPa, a responsivity around 19 μA/MPa from 8.5 to 25 MPa. For lower pressure values (around 0.16–0.45 MPa), inst…
Novel epoxy formulations for high energy radiation curable composites
2005
Abstract It has been widely recognised that high energy radiation can be effectively applied to the cure of epoxy resins in applications as composite matrices or structural adhesives with improvements in product quality and/or reduction in production costs. In the presence of suitable initiators, polymerisation of epoxies occurs via cationic mechanism, thus restricting the choice of the resin system components to species which do not contain electron donor groups. The present investigation is aimed to identify suitable co-monomers to be formulated with an epoxy resin, resulting in different cure reaction kinetics and application properties of the cured resin. In particular, four different a…
Effetto dell’invecchiamento idrotermico sulle proprietà termiche e meccaniche di resine epossidiche strutturali
2018
Le resine termoindurenti, utilizzate come matrici per materiali compositi rinforzati con fibre di carbonio, sono caratterizzate da un elevato grado di densità di reticolazione che conferisce loro una elevata fragilità e che allo stesso tempo le espone a significativi effetti di invecchiamento idrotermico durante il loro utilizzo [1]. In particolare si assiste alla diminuzione della temperatura di transizione vetrosa, per effetto di fenomeni di plasticizzazione e degradazione, e alla diminuzione di modulo elastico a flessione. Recentemente gli autori hanno proposto un metodo, Photoelastic Stress Analysis (PSA), molto efficace per monitorare le modifiche del materiale, in termini di swelling …
Linguistica Lettica, Nr. 24
2016
Letter to the Editor
2011
Growth and reproductive simulation of candidate shellfish species at fish cages in the Southern Mediterranean: Dynamic Energy Budget (DEB) modelling …
2012
Abstract A Dynamic Energy Budget (DEB) model is used to simulate growth and reproduction of the shellfish Mytilus galloprovincialis and Crassostrea gigas in an integrated multi-trophic aquaculture (IMTA) farm scenario situated in the Southern Mediterranean (the Gulf of Castellammare, Sicily). We modelled the effect of primary production enrichment at fish cages on shellfish growth and life history traits using 4 years-hourly temperature data (01 January 2006–31 December 2009) at a depth of 1 m. Outputs of the DEB simulations were: the maximum theoretical total shell length of shellfish, the potential reproductive outputs and the mean annual von Bertalanffy growth rate. There was a mean incr…
Growth of Mytilus galloprovincialis (mollusca, bivalvia) close to fish farms: a case of integrated multi-trophic aquaculture within the Tyrrhenian Sea
2009
A current practice of marine aquaculture is to integrate fish with low-trophic-level organisms (e.g. molluscs and/or algae) during farming to minimise effects of cultivation on the surrounding environment and to potentially increase economic income. This hypothesis has been tested in the present article experimentally, by co-cultivating fish and mussels (Mytilus galloprovincialis) in the field. Integrated multi-trophic aquaculture (IMTA) experiments were started in July 2004 by transplanting mussel seed at two depths (-3 and -9 m) within 1,000 m downstream to fish cages and at 1,000 m upstream from cages. Mussels were cultured in nylon net bags for 12 months and the growth recorded biometri…