Search results for " Process"
showing 10 items of 17204 documents
Information, Communications and Media Technologies for Sustainability: Constructing Data-Driven Policy Narratives
2021
This paper introduces the idea of data-driven narratives to examine how the use of information, communications, and media technologies (ICMTs) impacts the sustainable growth of economies. While ICMTs have regularly been advocated as a policy tool for growth and development, there is a research gap in empirical studies validating how such policies may be effective. This analysis is based on historical panel data from 39 economies across the developed North (19) and developing South (20). The industry-standard Cross-Industry Standard Process for Data Mining (CRISP-DM) methodology was applied to construct narratives that weave extant theories with empirical data. The art of developing data-dri…
A Time-Non-Homogeneous Double-Ended Queue with Failures and Repairs and Its Continuous Approximation
2018
We consider a time-non-homogeneous double-ended queue subject to catastrophes and repairs. The catastrophes occur according to a non-homogeneous Poisson process and lead the system into a state of failure. Instantaneously, the system is put under repair, such that repair time is governed by a time-varying intensity function. We analyze the transient and the asymptotic behavior of the queueing system. Moreover, we derive a heavy-traffic approximation that allows approximating the state of the systems by a time-non-homogeneous Wiener process subject to jumps to a spurious state (due to catastrophes) and random returns to the zero state (due to repairs). Special attention is devoted to the cas…
Izglītības iestādes vadītāja izpratne par tiranizēšanu
2022
Maģistra darbs „Izglītības iestādes vadītāja izpratne par tiranizēšanu” izstrādāts ar mērķi izpētīt izglītības iestādes vadītāja izpratni par tiranizēšanu, tā būtību skolā. Teorētiskajā daļā analizēta tiranizēšana izglītībā, raksturots izglītības darba vadītāja darbības teorētiskais aspekts un vadības un pedagoģiskais process. Empīriskajā 1. daļā veikts pētījums – 3 intervijas ar noteiktas darbības jomas speciālistiem, kam ir bijusi saistība ar tiranizēšanu, tiranizēšanas gadījumiem skolā. Empīriskajā 2. daļā realizētas 5 intervijas ar Latvijas rietumdaļas pašvaldības izglītības iestādes vadītājiem, lai izzinātu viņu izpratni, lomu tiranizēšanā un tā mazināšanā.
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…
Il regime processuale delle eccezioni di difetto di legittimazione attiva e passiva e di difetto di titolarità del rapporto. La parola alle Sezioni U…
2015
Il contributo, muovendo dall'esame all'ordinanza di remissione alle Sezioni Unite Cass. 13 febbraio 2015 n. 2977, si propone di riesaminare la vexata quaestio della distinzione tra (difetto di) legittimazione attiva e passiva e (difetto di) titolarità delle posizioni giuridiche, attive e passive, dedotte. Si affronta, in particolare, il problema dell'identità o della diversità delle due fattispecie e, sopratutto, si analizza il loro regime processuale nel sistema delle eccezioni. In particolare si conclude che nessuna delle due potenziali difese del convenuto - difetto di legittimazione e della titolarità della posizione giuridica dedotta - costituisce un'eccezione in senso stretto, bensì: …
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 …
Single-cell analysis of population context advances RNAi screening at multiple levels
2012
Isogenic cells in culture show strong variability, which arises from dynamic adaptations to the microenvironment of individual cells. Here we study the influence of the cell population context, which determines a single cell's microenvironment, in image‐based RNAi screens. We developed a comprehensive computational approach that employs Bayesian and multivariate methods at the single‐cell level. We applied these methods to 45 RNA interference screens of various sizes, including 7 druggable genome and 2 genome‐wide screens, analysing 17 different mammalian virus infections and four related cell physiological processes. Analysing cell‐based screens at this depth reveals widespread RNAi‐induce…
Hölder regularity for stochastic processes with bounded and measurable increments
2022
We obtain an asymptotic Hölder estimate for expectations of a quite general class of discrete stochastic processes. Such expectations can also be described as solutions to a dynamic programming principle or as solutions to discretized PDEs. The result, which is also generalized to functions satisfying Pucci-type inequalities for discrete extremal operators, is a counterpart to the Krylov-Safonov regularity result in PDEs. However, the discrete step size $\varepsilon$ has some crucial effects compared to the PDE setting. The proof combines analytic and probabilistic arguments.
Improving the operation of an emergency department by using a simulation model
2007
FL Toni Ruohonen on tutkinut väitöskirjassaan monia suomalaisia koskettavaa ongelmaa: terveydenhuollon päivystysjärjestelmän tehottomuutta. Tietokonesimulointia apuna käyttäen Ruohonen kehitti päivystyspoliklinikan uuden toimintamallin, jolla päivystykseen tulevan potilaan hoitoprosessia voidaan nopeuttaa jopa 40 %. – Terveydenhuollon yksiköt ovat hyvin monimutkaisia kokonaisuuksia, ja niillä on paljon satunnaisia piirteitä. Uusien teoreettisten ratkaisumallien kehittäminen ongelmiin on ollut melko helppoa, mutta niiden toimivuus on voitu osoittaa vasta käytännön kokeilun jälkeen, Ruohonen toteaa.Tutkimuksessa Ruohonen loi aluksi tietokoneella mallin oikeasta poliklinikasta sairaalan henkil…
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…