Search results for "Global"
showing 10 items of 3796 documents
Ecology and extent of freshwater browning - What we know and what should be studied next in the context of global change
2022
Water browning or brownification refers to increasing water color, often related to increasing dissolved organic matter (DOM) and carbon (DOC) content in freshwaters. Browning has been recognized as a significant physicochemical phenomenon altering boreal lakes, but our understanding of its ecological consequences in different freshwater habitats and regions is limited. Here, we review the consequences of browning on different freshwater habitats, food webs and aquatic-terrestrial habitat coupling. We examine global trends of browning and DOM/DOC, and the use of remote sensing as a tool to investigate browning from local to global scales. Studies have focused on lakes and rivers while seldo…
A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils : changing the paradigm
2022
The paradigm that permafrost-affected soils show restricted mineral nitrogen (N) cycling in favor of organic N compounds is based on the observation that net N mineralization rates in these cold climates are negligible. However, we find here that this perception is wrong. By synthesizing published data on N cycling in the plant-soil-microbe system of permafrost ecosystems we show that gross ammonification and nitrification rates in active layers were of similar magnitude and showed a similar dependence on soil organic carbon (C) and total N concentrations as observed in temperate and tropical systems. Moreover, high protein depolymerization rates and only marginal effects of C:N stoichiomet…
The 1-way on-line coupled atmospheric chemistry model system MECO(n) – Part 2: On-line coupling with the Multi-Model-Driver (MMD)
2012
A new, highly flexible model system for the seamless dynamical down-scaling of meteorological and chemical processes from the global to the meso-γ scale is presented. A global model and a cascade of an arbitrary number of limited-area model instances run concurrently in the same parallel environment, in which the coarser grained instances provide the boundary data for the finer grained instances. Thus, disk-space intensive and time consuming intermediate and pre-processing steps are entirely avoided and the time interpolation errors of common off-line nesting approaches are minimised. More specifically, the regional model COSMO of the German Weather Service (DWD) is nested on-line into the …
Pluviométrie et circulation atmosphérique simulées par le modèle régional WRF en Afrique australe : sensibilité à la physique et variabilité interne
2011
This study evaluates the capability of the regional climate model WRF to simulate Southern African rainfall and associated atmospheric circulation, particularly over South Africa, a country covered by a dense network of in situ observations. Three sets of simulations are performed at a 35km horizontal resolution during the core of the austral rainy season (December to February: DJF) with 6-hourly forcings provided by ERA40 reanalysis. The first set quantifies sensitivity of the simulated climate to the parameterizations of atmospheric convection, planetary boundary layer and microphysics. The retained case study (DJF 1993-1994: DJF94) is representative of the South African rainfall climatol…
Analistas simbólicos, jerarquía urbana y atracción de talento en las ciudades mundiales españolas (2005-2019): un análisis a partir de la EPA
2021
Este trabajo utiliza los microdatos de la Encuesta de población activa del INE entre 2005 y 2019 para analizar el nivel de competencias de la población ocupada, los procesos de cualificación del mercado de trabajo de las ciudades mundiales españolas (Madrid, Barcelona, Valencia, Sevilla y Bilbao) y el papel que están teniendo las migraciones de profesionales y técnicos altamente cualificados como reflejo de su capacidad diferencial para atraer talento externo. Siguiendo el marco conceptual propuesto por Allen J. Scott de creciente polarización de los mercados de trabajo metropolitanos entre una clase de «analistas simbólicos» de alta cualificación y una «subclase de servicios», se considera…
Atribūcijas stila saistība ar akadēmiskajiem sasniegumiem
2022
Pētījuma mērķis bija noskaidrot, vai bakalaura līmeņa studentiem optimistisks atribūcijas stils ir saistāms ar augstākiem akadēmiskajiem sasniegumiem, nekā pesimistisks atrubūcijas stils. Pētījumā piedalījās 54 studenti. Izlase tika veidota pēc pieejamības principa. Pētījumā tika lietota Atribūcijas stila aptauja vispārējai lietošanai (An Attributional Style Questionnaire for General Use) (Dykema et al., 1996). Šī aptauja ir vienkāršota oriģinālā instrumenta (ASQ; Peterson et al., 1982) versija. Aptauja tika adaptēta latviešu valodā šī darba ietvaros. Adaptācija tika veikta, izmantojot divvirzienu tulkojumu, drošuma prasībām atbilda abas analizējamās skalas, Kronbaha alfa > 0,70 (Globalitāt…
Quantities, environmental footprints and beliefs associated with household food waste in Bosnia and Herzegovina.
2019
The objectives of this research were to identify the quantities and global warming, acidification and eutrophication potentials associated with household food waste in Bosnia and Herzegovina. In parallel, this study investigated perceptions related to food waste and using the quality function deployment for environment model, correlated reasons for discarding food waste and beliefs associated with food waste. Based on this study, it is estimated that around 2.8 kg of food waste is disposed of by the average household every week. Global warming, acidification and eutrophication potentials associated with household food waste are, on average, 3.49 kg CO2e/week, 2.42 g SO2e/week and 8.70 g PO…
Autortiesību teritorialitātes princips digitālajā vidē.
2018
Maģistra darbā aplūkoti risinājumi pretrunai, kas ir izveidojusies starp teritorialitātes principu autortiesībās, kas piesaista autortiesības konkrētām valsts robežām, un digitālo vidi, kurā fiziskas robežas nepastāv, pretrunai, kas apdraud ar autortiesībām apveltītu darbu drošību. Mērķis ir noskaidrot vai iepriekšminētā pretruna ir problēma, vai to ir iespējams regulēt izmantojot esošos tiesību avotus, vai arī ir nepieciešamas izmaiņas esošajos tiesību avotos autortiesību jomā. Maģistra darba uzdevums ir definēt autortiesību teritorialitātes principa un digitālās vides pretrunu, un analizēt Eiropas Savienības un Pasaules intelektuālā īpašuma organizācijas mēģinājumus risināt šo pretrunu. R…
Gli interessi moratori usurari ma contra legem
2021
Il saggio muove dalla recente sentenza delle Sezioni unite della Corte di cassazione sull'inclusione degli interessi moratori nell'ambito di applicazione della fattispecie dell'usura in astratto. La risposta data dalle Sezioni unite è positiva ed essa va pienamente condivisa, perché gli interessi moratori rientrano tra i costi dei finanziamenti, ancorché eventuali. Gli argomenti a sostegno di questa conclusione sono però totalmente errate e essi destano allarme perché si presentano chiaramente contra legem. The essay starts from the recent judgment of the Sezioni unite of the Court of Cassation on the inclusion of interests for non performance within the scope of the figure of usury so call…
La via errata delle Sezioni Unite al corretto riconoscimento della rilevanza usuraria degli interessi moratori
2021
Il saggio muove dalla recente sentenza delle Sezioni unite della Corte di cassazione sull'inclusione degli interessi moratori nell'ambito di applicazione della fattispecie dell'usura in astratto. La risposta data dalle Sezioni unite è positiva ed essa va pienamente condivisa, perché gli interessi moratori rientrano tra i costi dei finanziamenti, ancorché eventuali. Gli argomenti a sostegno di questa conclusione sono però totalmente errate e essi destano allarme perché si presentano chiaramente contra legem. The essay starts from the recent judgment of the Sezioni unite of the Court of Cassation on the inclusion of interests for non performance within the scope of the figure of usury so call…