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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…
Latvijas sabiedrisko un komerciālo mediju žurnālistu komunikācija mikroblogošanas vietnē Twitter un sociālajā tīklā Instagram
2016
Bakalaura darba tēma ir „Latvijas sabiedrisko un komerciālo mediju žurnālistu komunikācija mikroblogošanas vietnē Twitter un sociālajā tīklā Instagram”. Veiktā darba mērķis ir noskaidrot, kādi tvitera un instagrama lietotāji ir sabiedrisko mediju un komerciālo mediju žurnālisti un, kādi ir šo žurnālistu sociālo mediju lietošanas paradumi. Darbs ietver 7 nodaļas un 17 apakšnodaļas. Bakalaura darba teorētiskajā daļā apkopoti teorētiskie materiāli par sociālajiem medijiem, tviteri, instagramu, žurnālistiku, reklāmu sociālo mediju profilos, kā arī, par tvitera un instagrama ietekmi uz žurnālistu profesionālo darbību. Bakalaura darbā izmantotas divas pētniecības metodes – kontentanalīze un inter…
Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment
2018
A direct search for the standard model Higgs boson decaying to a pair of charm quarks is presented. Associated production of the Higgs and Z bosons, in the decay mode ZH→ℓ+ℓ−c¯c is studied. A data set with an integrated luminosity of 36.1 fb−1 of pp collisions at √s=13TeV recorded by the ATLAS experiment at the LHC is used. The H→c¯c signature is identified using charm-tagging algorithms. The observed (expected) upper limit on σ(pp→ZH)×B(H→c¯c) is 2.7 (3.9+2.1−1.1) pb at the 95% confidence level for a Higgs boson mass of 125 GeV, while the standard model value is 26 fb.