Search results for "RP"
showing 10 items of 25034 documents
Korporatīvo obligāciju emisijas procesa analīze un tā pilnveidošana Latvijā
2020
Katras valsts tautsaimniecība var attīstīties tad, ja palielinās tā valsts kapitālsabiedrību vai privāto uzņēmumu ražošanas un pakalpojumu sniegšanas spēja. Līdz ar to, viens no valsts ekonomikas izaugsmes izšķirošajiem faktoriem ir attīstītais kapitāla tirgus, kur uzņēmumi var ātri un ērti piesaistīt nepieciešamo parāda kapitālu savai attīstībai. Tomēr, Latvijā obligāciju tirgus attīstība būtiski tiek aizkavētā, neskatoties uz tirgus attīstības potenciālu. Laika periodā no 2014. līdz 2018. gadam Latvijas korporatīvo obligāciju tirgus kapitalizācija pret valsts IKP saglabājās zemā līmenī. Turklāt, tirgū joprojām ir liels trūkums pēc jauniem obligāciju emitentiem, it sevišķi pēc uzņēmumiem n…
Calcium mediated polyelectrolyte adsorption on like-charged surfaces.
2011
International audience; Monte Carlo simulations within the primitive model of calcium-mediated adsorption of linear and comb polyelectrolytes onto like-charged surfaces are described, focusing on the effect of calcium and polyion concentrations as well as on the ion pairing between polymers and calcium ions. We use a combination of Monte Carlo simulations and experimental data from titration and calcium binding to quantify the ion pairing. The polymer adsorption is shown to occur as a result of surface overcharging by Ca2+ and ion pairing between charged monomers and Ca2+. In agreement with experimental observations, the simulations predict that the polymer adsorption isotherm goes through …
Voltammetric Detection of Lead(II) Using Amide-Cyclam- Functionalized Silica-Modified Carbon Paste Electrodes
2009
2-(4,8,11-Triscarbamoylmethyl-1,4,8,11-tetraazacyclotetradec-1-yl)acetamide (TETAM) derivatives bearing 1, 2, or 4 silylated arms have been synthesized and grafted to the surface of silica gel and ordered mesoporous silica samples. The resulting organic-inorganic hybrids have been incorporated into carbon paste electrodes and applied to the preconcentration electroanalysis of Pb(II). The attractive recognition properties of these cyclam derivatives functionalized with amide pendent groups toward Pb(II) species and the highly porous structure of the adsorbents can be exploited for the selective and sensitive detection of the target analyte. Various parameters affecting the preconcentration a…
Method and Practical Guidelines for Overcoming Enterprise Architecture Adoption Challenges
2017
During the last few years, interest towards Enterprise Architecture (EA) has increased, not least due to anticipated benefits resulting from adopting it. For instance, EA has been argued to provide cost reduction, technology standardisation, process improvement, and strategic differentiation. Despite these benefits, the EA adoption rate and maturity are still low. Consequently, EA benefits are not realised. A major reason hindering the adoption is that EA is not understood correctly. This paper aims for minimising the effect of the lack of understanding EA to adopting EA. Based on the research conducted in Finnish public sector, we propose an improved Enterprise Architecture Adoption Method…
To correct or to cooperate : Mediational processes and L2 development
2018
The present article argues for a conceptual distinction between corrective feedback and mediation that emphasizes the status of the latter not as an instructional practice but as a defining feature of human psychology (Vygotsky, 1987) that has direct implications for how instruction might be approached. Specifically, Sociocultural Theory (SCT) posits that humans are always and everywhere mediated, as individuals draw upon meanings and ways of thinking they have already internalized as well as those that are available in their immediate environment to regulate their actions. With regard to second language (L2) education, rather than exclusively focusing on learner independent performance or…
Lärarnas uppfattningar av att inleda undervisningen i A1-språk i årskurs 1
2022
Since 2020, the teaching of the A1 language starts in grade 1. In order to study the shift to an earlier start to the teaching of the A1 language, a survey of the teaching of A1 languages in grade 1 was carried out with the focus on the most common A1 languages: Finnish in the Swedish-medium schools and English in the Finnish-medium schools. The article examines the teachers’ perceptions of starting the teaching of A1 languages in grade 1. The data consists of 644 answers to an online questionnaire, of which 94 apply to A1 Finnish and 550 to A1 English. The results show that the teachers generally have a positive perception of early language teaching and consider starting the language in gr…
Developing a metatheoretical framework for second language development : a cultural-historical theory and dynamic systems theory perspective
2017
The main aim of this article-based dissertation is to construct and articulate a dialectical metatheoretical architecture for the study of second language development termed Purposive-Historical Systems Theory (PHiST) invoking, inter alia, the axiomatic imperatives of dynamic systems theory (DST), Vygotskian cultural-historical theory (CHT), and Pepperian root metaphor theory (RMT). Specifically, it primarily purports, first, to demonstrate the tenability of a dialectical synthesis of DST and CHT; second, to philosophize on the fundamental contours of PHiST; third, to apply a novel metatheoretical perspective, as a quintessential example, to reconceptualizing the seminal construct of the Zo…
Extramedullary hematopoiesis within endothelial papillary hyperplasia (Masson?s pseudoangiosarcoma) of the tongue
2007
We report the unique association of Masson?s pseudoangiosarcoma (endothelial papillary hyperplasia) and extramedullary hematopoiesis. The lesion was present as a violaceous nodule on the side of the tongue of a 78-year-old man with history of multiple myeloma and long-standing mild anemia. This association between a peculiar form of thrombus organization and extramedullary hematopoiesis has been reported previously only once, in an infant with a cranial hematoma, and raises interesting pathogenetic questions.
New is not always costly: evidence from online processing of topic and contrast in Japanese.
2013
Two visual ERP experiments were conducted to investigate topic and contrast assigned by various cues such as discourse context, sentential position and marker during referential processing in Japanese. Experiment 1 showed that there was no N400-difference for new vs. given noun phrases (NPs) when the new NP was expected (contrastively focused) based on its preceding context and sentential position. Experiment 2 further revealed that the N400 for new NPs can be modulated by the NP’s contrastive meaning (exhausitivity) induced from the marker. Both experiments also showed that new NPs engendered an increased Late Positivity. The reduced N400 for new vs. given supports an expectation-based lin…
Sorption of Acid Green 16 from Aqueous Solution onto Low-moor Peat and Smectite Clay Co-occurring in Lignite of Belchatow Mine Field
2015
Celem badań było wyznaczenie pojemności sorpcyjnej iłu smektytowego i torfu niskiego towarzyszących pokładom złóż węgli brunatnych w stosunku do barwnika Acid Green 16 (AG–16) oraz określenie mechanizmu jego wiązania. Wyniki wskazały, że badany torf niski był skutecznym sorbentem barwnika AG-16 w całym zakresie stężeń początkowych (1–1000 mg/dm3), natomiast ił smektytowy – jedynie z zakresie stężeń wysokich (> 250 mg/dm3). W wyniku aktywacji termicznej iłu nastąpił wzrost jego pojemności sorpcyjnej w stosunku do badanego barwnika. Proces sorpcji barwnika przebiegał przy ujemnie naładowanej powierzchni sorbentów i wskazywał, że jednym z mechanizmów wiązania barwnika AG–16 były oddziaływania …