Search results for "ACE"
showing 10 items of 51604 documents
Working the fields of big data : Using big-data-augmented online ethnography to study candidate–candidate interaction at election time
2017
The paper proposes big-data-augmented ethnography as a novel mixed-methods approach to studying political discussions in a hybrid media system. Using such empirical setup, the authors examined candidate–candidate online interaction during election campaigning. Candidate–candidate interaction crossing party boundaries is scarce and occurs in the form of negative campaigning via social media, with the shaming of rival candidates and engaging in battles with them. The authors posit that ethnographic observations can be used to contextualize the computational analysis of large data sets, while computational analysis can be applied to validate and generalize the findings made through ethnography…
Hoitohenkilöstön käsitykset työyhteisön vuorovaikutuksen merkityksestä hyvinvoinnille
2015
Sairaalaorganisaatiossa hoitohenkilöstön työhyvinvointi kohtaa monenlaisia haasteita, jotka kumpuavat sekä työn luonteesta että organisaation rakenteista ja hierarkiaverkostoista. Tämän artikkelin tavoitteena on ymmärtää työhyvinvoinnin rakentumista sairaalatyöyhteisön vuorovaikutuksessa jäsentämällä hoitohenkilöstön käsityksiä vuorovaikutuksen ja työhyvinvoinnin yhteyksistä. Tutkimusasetelma on laadullinen. Tutkimusaineistona oli yhdeksän hoitohenkilöstön jäsenen respondenttihaastattelua. Aineisto kerättiin erään suomalaissairaalan yhdestä työyksiköstä. Analyysin lähtökohtana käytettiin fenomenografisen lähestymistavan näkemystä käsityksestä: pyrkimyksenä oli ymmärtää merkityksenantojen mo…
Behavioural, ecological, and evolutionary aspects of diversity in frog colour patterns
2017
The role of colours and colour patterns in behavioural ecology has been extensively studied in a variety of contexts and taxa, while almost overlooked in many others. For decades anurans have been the focus of research on acoustic signalling due to the prominence of vocalisations in their communication. Much less attention has been paid to the enormous diversity of colours, colour patterns, and other types of putative visual signals exhibited by frogs. With the exception of some anecdotal observations and studies, the link between colour patterns and the behavioural and evolutionary ecology of anurans had not been addressed until approximately two decades ago. Since then, there has been eve…
Farmaceitisko līdzekļu izplatība hidroekosistēmās un to potenciālā ietekme uz ūdens organismiem
2018
Pēdējos gados strauji pieaug vides piesārņojums ar farmaceitiskiem savienojumiem. Tas ļoti piesaista pētnieku uzmanību, jo šie potenciāli bioaktīvie savienojumi var būtiski ietekmēt ūdens kvalitāti un ūdens ekosistēmas, kā arī cilvēka veselību. Pētījuma mērķis ir noteikt ibuprofēnu, paracetamolu (acetaminofēnu), diklofenaku, amoksicilīnu, ipidakrīna hidrohlorīdu, hlorpiramīna hidrohlorīdu un sulpirīdu saturošu preparātu toksiskumu, izmantojot divas biotestēšanas metodes: Daphnia magna akūtā toksiskuma testu un aļģu augšanas inhibēšanas testu. Darba gaitā ir iegūti dati par farmaceitisko vielu inhibējošo ietekmi uz ūdens organismiem. Noskaidrotas to subletālās koncentrācijas - LC50 (koncentr…
Farmaceitisko līdzekļu potenciālā ietekme uz ūdens organismiem
2020
Pēdējos gados strauji pieaug vides piesārņojums ar farmaceitiskiem savienojumiem. Tie ir potenciāli bioaktīvi un var būtiski ietekmēt ūdens kvalitāti un ūdens organismus, tomēr par daudziem framaceitiskiem savienojumiem eko-toksikoloģiskā informācija ir nepilna vai pilnībā iztrūkst. Pētījums tika veikts ar mērķi noteikt plaši pielietojamu un ekotoksikoloģijā maz pētītu farmaceitisko produktu potenciālo ietekmi uz ūdens organismiem. Darba gaitā ir noskaidrotas preparātu LC50, EC50, LOEC un NOEC vērtības. Eksperimenta rezultāti parādīja, ka attiecībā uz ūdens organismiem testētiem preparātiem akūtos testos toksiskais efekts ir novērojams koncentrāciju robežās no 10 līdz 100 mg·l-1. Hroniskos …
Lagrangian matches between observations from aircraft, lidar and radar in an orographic warm conveyor belt
2020
Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that involves aircraft, lidar and radar observations in a WCB ascending from western Europe towards the Baltic Sea during the Hydrological Cycle in the Mediterranean Experiment (HyMeX) and T-NAWDEX-Falcon in October 2012, a preparatory campaign for the THORPEX North Atlantic Waveguide and Downstream Impact Experiment (T-NAWDEX). Trajectories were used to link different observations along the WCB, that is, to establish so-called Lagrangian matches between observations. To this aim, …
From ‘no dogs here!’ to ‘beware of the dog!’ : restricting dog signs as a reflection of social norms
2019
Signs in public space reflect ‘normalcy’ in a community. The authors ask what restricting signs tell us about a society? In order to explore the system and variation in the ways dog signs manifest different norms and control, they compare two different data sets: dog signs in a Northern European town, Jyväskylä in Finland, and two Eastern European villages in Romania. They apply a qualitative methodology based on visual communication, geosemiotics and linguistic landscape studies. The focus of the article is on the resources of addressing and the visual semiotics of the image. The investigated communities seem to create a complementary distribution of what they regulate that is also displa…
La metodica wastewater based epidemiology come proxy di quantificazione del consumo di sostanze stupefacenti nella popolazione: l’esperienza della ci…
2016
INTRODUZIONE Le istituzioni europee e la comunità scientifica hanno, recentemente, definito un nuovo modello di sorveglianza attiva della potenziale diffusione delle droghe nella collettività, la Wastewater Based Epidemiology (WBE), attraverso la ricerca analitica delle molecole e dei loro metaboliti nelle acque reflue cittadine. Lo scopo di questo lavoro è stato la valutazione di una preliminare applicazione di METODIca WBE nella città di Palermo, poco studiata in precedenti analisi a livello nazionale e internazionale. METODI Sono stati prelevati 28 campioni (2 litri cad) di refluo medio delle 24 ore in ingresso ai due depuratori di Palermo (WP1=45.000 ab. eq.; WP2=330.000 ab. eq.) in un …
Assessment of environmental pollution caused by EDCs from everyday objects
2016
Związki modulujące pracę hormonów estrogenowych są grupą związków chemicznych, które przez ostatnich kilka dekad zwróciły uwagę zarówno społeczeństwa, jak i naukowców. Dowiedziono, że substancje te ingerują w prawidłową pracę układu hormonalnego i zaburzają rozwój, reprodukcję, homeostazę i metabolizm żywych organizmów. Zagrażają nie tylko ludziom, ale także wszystkim żywym organizmom. Są obecne w: plastikach, między innymi plastikowych opakowaniach na żywność, detergentach, pestycydach, tworzywach ognioodpornych, metalach ciężkich, a także farmaceutykach i produktach codziennej higieny, takich jak kosmetyki - kremy czy mydła, filtry UV, doustne środki antykoncepcyjne i przeciwbólowe, a tak…
Biopolymer Recovery from Aerobic Granular Sludge and Conventional Flocculent Sludge in Treating Industrial Wastewater: Preliminary Analysis of Differ…
2022
The recovery of biopolymers from sewage sludge could be a crucial step in implementing circular economy principles in wastewater treatment plants (WWTP). In this frame, the present study was aimed at evaluating the simultaneous production of polyhydroxyalkanoates (PHA) and extracellular polymeric substances (EPS) obtainable from the treatment of agro-industrial wastewater. Two biological enrichment systems, aerobic granular sludge (AGS) and a conventional activated sludge operating as a sequencing batch reactor (SBR), were monitored for 204 and 186 days, respectively. The maximum biopolymers accumulation capacity was close to 0.60 mgPHA-EPS gVSS−1 in the AGS when operating at 3 kgCODm…