Search results for "SUT"

The ABCflux database: Arctic-boreal CO2flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems

2022

Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited in their geographical and temporal coverage. Furthermore, these efforts have been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting their potential to be used in large-scale carbon budget assessments. To bridge these gaps, we developed a standardized monthly database of Arctic–boreal CO2 fluxes (ABCflux) that aggregates in situ measurements of terrestrial net ecosystem CO2 exchange and its derived partitioned…

Exploring CO2 hydrogenation to methanol at a CuZn–ZrO2 interface via DFT calculations

2023

Multi-component heterogeneous catalysts are among the top candidates for converting greenhouse gases into valuable compounds. Combinations of Cu, Zn, and ZrO2 (CZZ) have emerged as promisingly efficient catalysts for CO2 hydrogenation to methanol. To explore the catalytic mechanism, density functional theory (DFT) calculations and the energetic span model (ESM) were used to study CO2 conversion routes to methanol on CuZn–ZrO2 interfaces with a varying Zn content. Our results demonstrate that the presence of Zn sites at the interface improves CO2 binding. However, the adsorption and activation energies are insensitive to Zn concentration. The calculations also show that the hydrogenation of …

The influence of lipid content and taxonomic affiliation on methane and carbon dioxide production from phytoplankton biomass in lake sediment

2021

The greenhouse gases methane (CH4) and carbon dioxide (CO2) are end products of microbial anaerobic degradation of organic matter (OM) in lake sediments. Although previous research has shown that phytoplankton lipid content influences sediment methanogenesis, current understanding on how OM quality affects methanogenesis is still limited. Such information is needed to more accurately assess how lake greenhouse gas emissions may change in response to anthropogenic activities. We cultured 11 phytoplankton species from five classes and studied how taxonomic identity, C : N ratio, lipid content, and fatty acid composition of phytoplankton biomass affects the CH4 and net CO2 production in anaero…

Responsibilities for just transition to low-carbon societies : a role-based framework

2022

Low-carbon transitions in industrialised societies will have significant social, economic and environmental impacts, raising concerns of justice. Calls for urgent transitions evoke a question about the roles of different actors in advancing transitions and ensuring they are just. While the responsibilities for emission mitigation have been long discussed, responsibilities for making a just transition have not. The question about responsibilities is particularly pressing because of the diverse constellation of actors involved in climate action, including diverse forms of non-state actors from city-level and business alliances to grassroots activists. We examine the responsibilities of state …

Epidemiology, diagnosis and management of hirsutism: a consensus statement by the Androgen Excess and Polycystic Ovary Syndrome Society.

2012

Background Hirsutism, defined by the presence of excessive terminal hair in androgen-sensitive areas of the female body, is one of the most common disorders in women during reproductive age. Methods We conducted a systematic review and critical assessment of the available evidence pertaining to the epidemiology, pathophysiology, diagnosis and management of hirsutism. Results The prevalence of hirsutism is ~10% in most populations, with the important exception of Far-East Asian women who present hirsutism less frequently. Although usually caused by relatively benign functional conditions, with the polycystic ovary syndrome leading the list of the most frequent etiologies, hirsutism may be th…

Historian väitöskirjojen aikakaudet, julkaisukielet ja väitösyliopistot 1850-luvulta 2010-luvun jälkipuoliskolle

2019

Selective gas adsorption by calixarene-based porous octahedral M32 coordination cages

2022

Giant octahedral M32 coordination cages were prepared via self-assembly of sulfonylcalix[4]arene-supported tetranuclear M(II) clusters (M = Co, Ni) with hybrid linker based on tris(dipyrrinato)cobalt(III) complexes appended with peripherical carboxylic groups. Due to intrinsic and extrinsic porosity, the obtained solid-state supramolecular architectures demonstrated good performance as adsorbents for the separation of industrially important gases mixtures. peerReviewed

Sutenerisms

2019

Prostitūcija un sutenerisms kā asociāla parādība pastāvēja un pastāvēs visās valstīs neatkarīgi no tās kultūras un pretpasākumiem kādus tās veic cīņai pret šo problēmu. Ļoti bieži prostitūcija ir saistīta ar krimināli sodāmām aktivitātēm, jo tieši suteneri bieži ar draudiem un vardarbību iesaista personas, kuras nodarbojas ar prostitūciju nolūkā iedzīvoties uz tām. Darba mērķis ir izpētīt teorētiskos aspektus un risinājumus, kuri saistīti ar cīņu pret sutenerismu un izstrādāt priekšlikumus tās efektivitātes uzlabošanai cīņai pret sutenerismu. Lai minēto mērķi sasniegtu, ir izvirzīti šādi uzdevumi: padziļināti izanalizēt un izpētīt sutenerisma vēsturisko attīstību, tā jēdzienu, analizēt sute…

Sutenerisms un tā krimināltiesiskais aspekts

2022

Bakalaura darbā “Sutenerisms un tā krimināltiesiskais aspekts” tiek apskatīts sutenerisma jēdziens un tā vēsturiskā attīstība, paskaidrojot kā sutenerisms pastāvējis kopš pirmās civilizācijas līdz pat mūsdienām. Darba ietvaros analizēts sutenerisma sastāvs un problemātikas jautājumi attiecībā uz noziedzīgu nodarījumu kopībām, kā arī tika aplūkots ārvalstu krimināltieskais regulējums salīdzinājumā ar Latvijas Republiku. Aplūkojot jautājumus attiecībā uz sutenerismu, tika izmantota tiesu prakse, tiesību zinātņu pētnieku literatūra un normatīvie akti. Bakalaura mērķis ir pētīt nevienveidīgo tiesību praksi attiecībā uz citiem noziedzīgiem nodarījumiem, kas mēdz veidot kopību ar sutenerismu. Bak…

Ar prostitūciju saistītie noziedzīgie nodarījumi

2018

Prostitūcija un ar to saistītie noziedzīgie nodarījumi ir vienmēr pastāvējuši gan Latvijas teritorijā, gan ārvalstīs. Daudzi autori atzīst, ka to nav iespējams pilnībā apkarot, jo tie pastāvēs neatkarībā no likumdošanas un izstrādātas prostitūcijas novēršanas sistēmas valstī, tāpēc autores darba mērķis ir detalizēti izpētīt gan prostitūcijas, gan ar to saistīto noziedzīgo nodarījumu jēdzienu un būtību, noziedzīgo nodarījumu sastāvus, kvalifikācijas problēmas, veikt ārvalstu regulējuma analīzi, kas ļaus secināt par to nepieciešamību pārņemt Latvijā. Darba uzdevums ir, apkopojot iegūto informāciju un tiesu praksi, konstatēt Latvijas spēkā esošā regulējuma problēmjautājumus un izstrādāt secinā…