282 resultados para Savolainen, Sauli


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Sammandrag: Uppkomsten av finnskogarna och den savolaxiska rörligheten under den äldre Vasatiden

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Opinnäytetyö käsittelee kampanjointiviestintää eduskuntavaaleissa 2007 painottuen kampanjointikeinoihin verkossa. Itse olin keskeisesti mukana Sauli Niinistön eduskuntavaalikampanjassa työskentelemällä hänen kampanjansa tiimivastaavana ja kampanjatoimiston vetäjänä neljän kuukauden ajan. Niinistön kampanjassa käytettiin monipuolisesti hyödyksi Internetiä ja sen tarjoamia mahdollisuuksia. Muun nettikampanjoinnin lisäksi tuotettiin 19 uutisvideota. Tässä opinnäytetyössä tarkastelen Sauli Niinistön verkossa tapahtunutta vaalikampanjointia sekä Saulin Tietotoimiston Uutisia osana kokonaisuutta. Arvioin myös sitä, millaisia erilaisia kampanjointikeinoja ehdokkaat käyttävät verkossa ja miten ne toimivat Sauli Niinistön eduskuntavaalikampanjassa. Perehdyn myös tarkemmin näiden vaalien uutuuteen, verkkovideoihin sekä arvioin, millaista lisäarvoa nettiuutisilla saatiin Niinistön kampanjaan. Kontekstina työssäni on yleisesti kampanjakeinojen kehittyminen Internetissä 2000-luvun aikana. Verkosta on tullut entistä varteenotettavampi kampanjointipaikka sitä mukaa kuin äänestäjät ovat alkaneet kuluttaa entistä enemmän aikaa verkossa. Vaalikampanjoidenkin sisällön täytyy olla entistä ammattimaisemmin tuotettua. Vaalikampanjat käydään yhä enenevässä määrin median kautta. Median osuus on huomattava myös eduskuntavaaleissa, etenkin vaalipiireissä, joissa on paljon asukkaita. Tästä syystä kampanjaorganisaatiolta vaaditaan yhä enemmän viestintätaitoja. Organisaatiosta on löydyttävä ihmisiä, jotka ehdokkaan lisäksi voivat kommentoida kampanjaa eri välineille luontevasti. Moniosaajuuden merkitys siis korostuu myös vaalityössä.

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Tukhulmissa 1828

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Göttingen, Univ., Diss., 1871

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In the title compound, C13H12N2O2S, the dihedral angle between the two aromatic ring planes is 87.52 (12)degrees. The molecule shows an intramolecular N-H center dot center dot center dot O hydrogen bond. The crystal structure is stabilized by intermolecular N-H center dot center dot center dot S and C-H center dot center dot center dot O hydrogen bonding.

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The title compound, C13H12N2O2S, crystallizes with two independent molecules in the asymmetric unit. The two molecules differ in the conformation of the thiocarbonyl and carbonyl groups, and show the typical geometric parameters of substituted thiourea derivatives. The crystal structure is mainly stabilized by intermolecular N-H center dot center dot center dot O hydrogen bonding.

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The origin of species diversity has challenged biologists for over two centuries. Allopatric speciation, the divergence of species resulting from geographical isolation, is well documented. However, sympatric speciation, divergence without geographical isolation, is highly controversial. Claims of sympatric speciation must demonstrate species sympatry, sister relationships, reproductive isolation, and that an earlier allopatric phase is highly unlikely. Here we provide clear support for sympatric speciation in a case study of two species of palm (Arecaceae) on an oceanic island. A large dated phylogenetic tree shows that the two species of Howea, endemic to the remote Lord Howe Island, are sister taxa and diverged from each other well after the island was formed 6.9 million years ago. During fieldwork, we found a substantial disjunction in flowering time that is correlated with soil preference. In addition, a genome scan indicates that few genetic loci are more divergent between the two species than expected under neutrality, a finding consistent with models of sympatric speciation involving disruptive/divergent selection. This case study of sympatric speciation in plants provides an opportunity for refining theoretical models on the origin of species, and new impetus for exploring putative plant and animal examples on oceanic islands.

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C4 photosynthesis is an adaptation derived from the more common C3 photosynthetic pathway that confers a higher productivity under warm temperature and low atmospheric CO2 concentration [1, 2]. C4 evolution has been seen as a consequence of past atmospheric CO2 decline, such as the abrupt CO2 fall 32-25 million years ago (Mya) [3-6]. This relationship has never been tested rigorously, mainly because of a lack of accurate estimates of divergence times for the different C4 lineages [3]. In this study, we inferred a large phylogenetic tree for the grass family and estimated, through Bayesian molecular dating, the ages of the 17 to 18 independent grass C4 lineages. The first transition from C3 to C4 photosynthesis occurred in the Chloridoideae subfamily, 32.0-25.0 Mya. The link between CO2 decrease and transition to C4 photosynthesis was tested by a novel maximum likelihood approach. We showed that the model incorporating the atmospheric CO2 levels was significantly better than the null model, supporting the importance of CO2 decline on C4 photosynthesis evolvability. This finding is relevant for understanding the origin of C4 photosynthesis in grasses, which is one of the most successful ecological and evolutionary innovations in plant history.