Search results for "OTA"
showing 10 items of 33012 documents
Digitālās komunikācijas pašefektivitātes un vajadzības pēc izziņas saistība ar ziņojuma ticamības dimensiju novērtējumu sociālo mediju lietotāju uztv…
2022
Pētījuma mērķis bija noskaidrot digitālās komunikācijas pašefektivitātes un vajadzības pēc izziņas saistību ar ziņojuma ticamības dimensiju novērtējumu sociālo mediju lietotāju uztverē. Izlases apjoms: 100 respondenti - sievietes (82 %) un vīrieši (18 %). Respondenti vecumā no 18 līdz 66 gadiem (M = 40,39, SD = 13,84). Tika izmantota Spitsberga (2006) veidotā datorizētas komunikācijas kompetences (Computer mediated communication competence; CMC competence) apakšskala par pašefektivitāti (Spitzberg, 2006). Aptaujas tulkošanu Latvijā veikusi Annija Abarone. Vajadzība izzināt skala (Need for Cognition Scale, Cacioppo, Petty, & Kao, 1984). Latviešu valodā tulkojuši Ģ. Dimdiņš un I. Austers 2010…
Zodiaka zīmju dizaina plānotājs un kalendārs
2022
Diplomdarba tēma ir “Zodiaka zīmju dizaina plānotājs”. Darba mērķis ir, balstoties uz teorētiskajā un empīriskajā daļā iegūto informāciju, izstrādāt plānotāju 2023.gadam zodiaka zīmju tematikā, izmantojot pētījumā iegūto informāciju par plānotāju dizaina vēsturi, stilistikas iezīmēm un aspektiem. Teorētiskajā daļā aprakstīts zodiaka zīmju grafiskais dizains kalendāros un plānotājos, zodiaka zīmju attistība, plānotāju vēsture, plānotāju attīstība Latvijā. Lai varētu izveidot pēc iespējas funkcionālāku dizainu, tika izpētīts formāts, kompozīcijas, režģa un grafisko elementu izmantošana plānotājos. Darba empīriskajā daļā tika analizēti 10 ka…
Terrestrial carbohydrates support freshwater zooplankton during phytoplankton deficiency
2016
Article
Phosphorus limitation enhances parasite impact: feedback effects at the population level
2014
Background Nutrient deficiency affects the growth and population dynamics of consumers. Endoparasites can be seen as consumers that drain carbon (C) or energy from their host while simultaneously competing for limiting resources such as phosphorus (P). Depending on the relative demands of the host and the parasite for the limiting nutrient, intensified resource competition under nutrient limitation can either reduce the parasite’s effect on the host or further reduce the fitness of the nutrient-limited host. So far, knowledge of how nutrient limitation affects parasite performance at the host population level and how this affects the host populations is limited. Results We followed the popu…
Inferring phytoplankton community composition with a fatty acid mixing model
2015
Abstract. The taxon specificity of fatty acid composition in algal classes suggests that fatty acids could be used as chemotaxonomic markers for phytoplankton composition. The applicability of phospholipid-derived fatty acids as chemotaxonomic markers for phytoplankton composition was evaluated by using a Bayesian fatty acid-based mixing model. Fatty acid profiles from monocultures of chlorophytes, cyanobacteria, diatoms, euglenoids, dinoflagellates, raphidophyte, cryptophytes and chrysophytes were used as a reference library to infer phytoplankton community composition in five moderately humic, large boreal lakes in three different seasons (spring, summer and fall). The phytoplankton commu…
Water chemistry, zooplankton and benthos in small lakes within the distribution area of the rare European pool frog Pelophylax lessonae (Camerano) in…
2020
Summary In June 2018, water chemistry, benthos and zooplankton were investigated in 7 small lakes/ ponds within the key area of the European pool frog Pelophylax lessonae (Camerano) in Norway. The geographic distribution of the Norwegian population is minor, limited to a very few small lakes in the county of Agder in southernmost Norway. Since the species is thermophilic, reproduction success only occurs in warm summers. Accordingly, the pool frog is one of the most rare vertebrates in Norwegian fauna, classified as critically endangered in the Norwegian red list. A breeding program is today established in order to rescue this species.The article deals with potential biotope challenges most…
Limnological aspects of sicilian reservoirs: A comparative, ecosystemic approach
1999
This paper is a report on the state-of-the-art of reservoir limnology in Sicily, the largest island of the Mediterranean Sea. The territory is characterised by a semi-arid climate with a dry and a wet semester occurring in the year. Evaporative losses are strong during the summer and, on an annual basis, they often exceed precipitation. Thus, reservoirs constitute an important water resource for the island to supply drinking water and to provide for agricultural needs in the periods of drought. However, despite their importance, they receive poor attention from the scientific and political communities and in the absence of any environmental policy or suitable territorial planning, their wat…
The importance of phytoplankton production for carbon budgets in a semiarid floodplain wetland
2011
Phytoplankton production (PP) in wetlands is not measured as often as that of macrophytes. A three year-study during a period of sustained high flooding was undertaken in a central Spanish floodplain wetland (Las Tablas de Daimiel National Park) to determine net PP, its spatial heterogeneity and controlling factors, and compare it with primary production in macrophyte communities. This enabled us to estimate carbon budgets for each community. All PP variables showed high spatial and temporal variability among sites, resulting in low coherence even when flooding connected all sites. Net PP corresponded to 25- 36% of submerged plant production and 3-10% of helophyte production. Net PP was con…
Vidējā pirmsskolas vecuma zēnu pašapkalpošanās prasmju pilnveide lomu rotaļās
2017
Kvalifikācijas darba temats ir "Vidējā pirmsskolas vecuma zēnu pašapkalpošanās prasmju pilnveide lomu rotaļās". Darba autors Latvijas Universitātes pedagoģijas, psiholoģijas un mākslas fakultātes, nepilna laika klātienes, studiju programmas, pirmsskolas izglītības skolotājs, studente Saiva Zara. Darba vadītājs, Latvijas Universitātes profesore Dr. Paed. Maruta Sīle. Pētījuma objekts- pašapkalpošanās prasmju pilnveide lomu rotaļās. Pētījuma priekšmets- vidējā pirmsskolas vecuma zēnu pašapkalpošanās prasmes. Pētījuma mērķis- pētīt vidējā pirmsskolas vecuma zēnu pašapkalpošanās prasmju pilnveidi lomu rotaļās. Hipotēze- Vidējā pirmsskolas vecuma zēnu pašapkalpošanās prasmju pilnveide lomu rotaļ…
« Mais qui êtes-vous donc, Monsieur Charles Nodier ? »
2020
Biographical note addressing all aspects of the intellectual and artistic life of Charles Nodier (1780-1844), the reasons for his exclusion from the Pantheon of French Letters from his death until the second half of the 20th century and the most recent signs of its gradual rebirth.