Search results for "ilma"
showing 10 items of 1022 documents
Risk factors for Lyme disease : A scale-dependent effect of host species diversity and a consistent negative effect of host phylogenetic diversity
2021
Biodiversity can influence disease risk. One example of a diversity-disease relationship is the dilution effect, which suggests higher host species diversity (often indexed by species richness) reduces disease risk. While numerous studies support the dilution effect, its generality remains controversial. Most studies of diversity-disease relationships have overlooked the potential importance of phylogenetic diversity. Furthermore, most studies have tested diversity-disease relationships at one spatial scale, even though such relationships are likely scale dependent. Using Lyme disease as a model system, we investigated the effects of host species richness and phylogenetic relatedness on the…
Dizaina procesa apguve darbā ar tekstilmateriāliem 5 – 6 gadus veciem bērniem pirmsskolā
2021
Kvalifikācijas darba nosaukums “Dizaina procesa apguve darbā ar tekstilmateriāliem 5 – 6 gadus veciem bērniem pirmsskolā”, darba autore ir Latvijas Universitātes studente Lelde Petrovska. Darba vadītāja Asoc.prof. Māra Urdziņa – Deruma. Pētījuma mērķis ir pētīt vecākā pirmsskolas vecuma bērnu dizaina procesa apguvi darbojoties ar tekstilmateriāliem. Pētījuma hipotēze - dizaina procesa apguve darbā ar tekstilmateriālu tiek sekmēta tad, ja praktiskie uzdevumi ir daudzveidīgi un radoši, ir pozitīva emocionāla vide, dizaina darbi ir izvēlēti atbilstoši bērna attīstības pakāpei un interesēm.Pētījuma laikā tika izmantotas divas pētījuma metodes – pētīšanas metode un empīriskās metodes. Pirmajā kv…
Adaptation and ecological speciation in seasonally varying environments at high latitudes: Drosophila virilis group
2022
Living in high latitudes and altitudes sets specific requirements on species’ ability to forecast seasonal changes and to respond to them in an appropriate way. Adaptation into diverse environmental conditions can also lead to ecological speciation through habitat isolation or by inducing changes in traits that influence assortative mating. In this review, we explain how the unique time-measuring systems of Drosophila virilis group species have enabled the species to occupy high latitudes and how the traits involved in species reproduction and survival exhibit strong linkage with latitudinally varying photoperiodic and climatic conditions. We also describe variation in reproductive barriers…
Sectoral policies cause incoherence in forest management and ecosystem service provisioning
2022
Various national policies guide forest use, but often with competing policy objectives leading to divergent management paradigms. Incoherent policies may negatively impact the sustainable provision of forest ecosystem services (FES), and forest multifunctionality. There is uncertainty among policymakers about the impacts of policies on the real world. We translated the policy documents of Finland into scenarios including the quantitative demands for FES, representing: the national forest strategy (NFS), the biodiversity strategy (BDS), and the bioeconomy strategy (BES). We simulated a Finland-wide systematic sample of forest stands with alternative management regimes and climate change. Fin…
Mahtavia ydinvoimalaitoksia vai tekniikan ulkomuseoita : käsitekamppailut eduskunnan debatissa viidennestä ydinvoimalasta
2011
Tutkimus tarkastelee eduskunnan debatissa viidennestä ydinvoimalasta käytyjä retorisia kamppailuja eri avainkäsitteiden sisällöistä ja merkityksistä. Näitä avainkäsitteitä ovat tulevaisuuteen, tietoon sekä ympäristöön liittyvät käsitekonstellaatiot. Tutkimuksen lähtökohtana on, että Suomen energiapolitiikassa on 2000-luvulla tapahtunut muutos jonka myötä ydinvoiman lisärakentaminen on tullut poliittisesti mahdolliseksi, siinä missä 1980- ja 1990-luvuilla hankkeet viidennen ydinvoimalan rakentamiseksi kaatuivat. Tätä muutosta analysoidaan tarkastelemalla eduskunnan debatissa käytettyä retoriikkaa ja käsitetulkintoja. Parlamentti tutkimuskohteena perustuu siihen, että parlamentaariset aineist…
Toward Successfully Integrating Mini Learning Games into Social Virtual Reality Environments : Recommendations for Improving Open and Distance Learni…
2017
Social virtual reality environments, also known as 3D virtual immersive environments, are threedimensional computer-generated virtual spaces that are increasingly used in attendance-based and distance education. Thanks to their unique characteristics that separate them from two-dimensional virtual learning environments, social virtual reality environments can enhance distance education efficacy when used in combination with applying instructional methodologies such as situated learning, experiential learning and game-based learning. The authors of this paper describe the design and findings of a research study on game-based learning in social virtual immersive environments. The research met…
Combined effects of eutrophication and warming on polyunsaturated fatty acids in complex phytoplankton communities:A mesocosm experiment
2022
Climate change and eutrophication are among the main stressors of shallow freshwater ecosystems, and their effects on phytoplankton community structure and primary production have been studied extensively. However, their combined effects on the algal production of polyunsaturated fatty acids (PUFA), specifically, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are currently unresolved. Moreover, the proximate reasons for changes in phytoplankton EPA and DHA concentrations are unclear, i.e., the relative importance of ecological (changes in the community composition) vs. ecophysiological (within taxa changes in EPA and DHA levels) factors. We investigated the responses of phytopla…
Kreikkalaisten ja suomalaisten kuudesluokkalaisten Eurooppa-kuva
1997
Mitä odottaa uuden europarlamentin ulkopolitiikalta?
2019
Euroopan unionin on määriteltävä roolinsa ja yhtenäinen politiikkansa yhä monimutkaisemmassa maailmassa. Transatlanttisten suhteiden tulevaisuus, brexitin vaikutus EU:n ulko- ja turvallisuuspolitiikkaan ja vastaaminen globaaleihin kysymyksiin kuten ilmastonmuutokseen ovat tulevankin EU:n parlamentin agendalla. nonPeerReviewed
Fridays for Future Wants to Save the World : But What Do People Think about the Movement?
2023
Fridays for Future is a movement initiated by Greta Thunberg designed to alert millions around the globe that we are amid a climate crisis by organising Friday protests. Led by Greta Thunberg, Fridays for Future has generated a lot of press in recent years: Greta has been listed among the World’s 100 Most Powerful Women as well as being twice nominated for the Nobel Prize. Greta was also named Time Magazine Person of the Year 2019. While her cause may be noble, many criticise the Fridays for Future movement—others simply do not believe in its global warming message. Twitter is a powerful electronic word of mouth (eWOM) platform, which, as a form of peer-to-peer communication, has the power …