Search results for " Migration"
showing 10 items of 754 documents
The return of young professionals to Rezekne
2018
Bakalaura darba tēma ir “Jauno speciālistu atgriešanās Rēzeknē”. Šī pētījuma galvenais mērķis ir noskaidrot, kādi ir noteicošie faktori, kas pamudina jaunos speciālistus atgriezties Rēzeknē. Pētījuma objekts ir Rēzeknes iedzīvotāji, kuri pēc vidējās izglītības iegūšanas Rēzeknē ir devušies uz citu Latvijas pilsētu iegūt augstāko izglītību un kuri, ieguvuši augstāko izglītību, ir pēdējo 5 gadu laikā atgriezušies uz dzīvi Rēzeknē. Darba teorētiskais pamatojums ir balstīts uz migrācijas, iekšējās migrācijas skaidrojumu un klasifikāciju, kā arī teorijām par piederību vietai un saitēm ar pilsētu. Darbā tika izmantotas kvalitatīvās pētniecības metodes – tika veiktas 13 daļēji strukturētās intervi…
Implementing cloud ERP solutions: a review of sociotechnical concerns
2018
Abstract Cloud ERP solutions allow organizations of all sizes to support and coordinate key business processes by leveraging virtualization. Nevertheless, the implementation of cloud ERPs is not straightforward and there are significant issues that need to be taken into account when launching cloud ERP initiatives. To explore these issues, we conducted an in-depth systematic review of related research literature. We identified six key issues related to cloud ERP implementation: a) functionality fit, b) integration, c) data migration, d) organizational change, e) data security, and f) reliability. Furthermore, we mapped these issues to the different sizes of organizations. Based on this revi…
Spring raptor migration at Ustica, southern Italy
2004
The island of Ustica, lying at 38°42’N 13°12’E in the Tyrrhenian Sea, is approximately 60 km north of western Sicily and 270 km northeast of the Cap Bon promontory in Tunisia (fig.1). Although covering an area of only 7,600 ha, its isolation makes it attractive to migrant birds. In order to establish the importance of Ustica for the spring migration of raptors in the Mediterranean basin, counts of migrating raptors were made from the highest point of the Falconiera promontory, which dominates the northeast coast of the island, between 22nd March and 20th May 2002.Each spring, thousands of raptors cross the Mediterranean Sea between Africa and southern Italy during their northward migration …
A network analysis of student mobility patterns from high school to master’s
2021
Human migration involves the movement of people from one place to another. An example of undirected migration is Italian student mobility where students move from the South to the Center-North. This kind of mobility has become of general interest, and this work explores student mobility from Sicily towards universities outside the island. The data used in this paper regards six cohorts of students, from 2008/09 to 2013/14. In particular, our goal is to study the 3-step migration path: the area of origin (Sicilian provinces), the regional university for the bachelor’s degree, and the regional university for the master’s. Our analysis is conducted by building a multipartite network with four …
A many-body approach to transport in quantum systems : From the transient regime to the stationary state
2022
We review one of the most versatile theoretical approaches to the study of time-dependent correlated quantum transport in nano-systems: the non-equilibrium Green's function (NEGF) formalism. Within this formalism, one can treat, on the same footing, inter-particle interactions, external drives and/or perturbations, and coupling to baths with a (piece-wise) continuum set of degrees of freedom. After a historical overview on the theory of transport in quantum systems, we present a modern introduction of the NEGF approach to quantum transport. We discuss the inclusion of inter-particle interactions using diagrammatic techniques, and the use of the so-called embedding and inbedding techniques w…
Paracrine effect of membrane vesicles released by mouse mesoangioblast stem cells on non correlated cell types
2016
Introduction Mouse mesoangioblasts are vessel-associated multipotent progenitor stem cells, which are able to differentiate into different mesodermal cell types. In our previous paper we have demonstrated that these cells are able to shed in the extracellular environment membrane vesicles (EV), which contain both structural proteins and biological factors such as FGF2 and the two gelatinases MMP2/9. EV represent an important mediator of cell-to-cell communication and are involved in both autocrine and paracrine signalling. Interestingly, there is a bidirectional signalling exchange between stem cell EV and damaged cells. In particular, EV from injured cells can reprogram stem cells to acqui…
Ferrocenyl-Coupled N-Heterocyclic Carbene Complexes of Gold(I)
2016
Four gold(I) carbene complexes featuring 4-ferro-cenyl-substituted imidazol-2-ylidene ligands were investigated for antiproliferative and antivascular properties. They were active against a panel of seven cancer cell lines, including multidrug-resistant ones, with low micromolar or nanomolar IC50 (72 h) values, according to their lipophilicity and cellular uptake. The delocalized lipophilic cationic complexes 8 and 10 acted by increasing the reactive oxygen species in two ways: through a genuine ferrocene effect and by inhibiting the thioredoxin reductase. Both complexes gave rise to a reorganization of the F-actin cytoskeleton in endothelial and melanoma cells, associated with a G1 phase c…
Cuando la violencia genera identidad. La guerra en Sri Lanka y la diáspora tamil en Sicilia
2011
Sri Lanka, durante las dos últimas décadas, fue el escenario de una prolongada guerra civil entre la mayoría cingalesa budista y la minoría tamil hindú, que ha defendido su independencia. La primera parte de este artículo muestra que no fueron las diferencias de origen étnico-cultural las que llevaron a la guerra, sino las razones políticas y económicas. La guerra civil ha llevado a una radicalización y cristalización de las diferencias étnicas a través de la manipulación del pasado y del papel político del budismo. La guerra provocó la diáspora tamil en todo el mundo, incluyendo también Sicilia. En la segunda parte del artículo, se presentan algunos puntos del trabajo de campo realizado co…
Engaging universities in social innovation research for understanding sustainability issues
2017
International audience; The paper presents the analysis of a three-stage research conducted by the authors within a social innovation project in collaboration with international master students of Riga Technical University for determining the factors, which motivate people to be involved in the solution of social problems. The authors not only analyse and use the outcomes of the students’ research but also provide feasibility study of using the potential of study research at the university, for implementing serious research projects. Data collection from Africa, Asia, America and Europe was organised jointly by all the students via web-based survey for creating an original data base for the…
The Influence of Hyaluronic Acid Biofunctionalization of a Bovine Bone Substitute on Osteoblast Activity In Vitro
2021
Bovine bone substitute materials (BSMs) are used for oral bone regeneration. The objective was to analyze the influence of BSM biofunctionalization via hyaluronic acid (HA) on human osteoblasts (HOBs). BSMs with ± HA were incubated with HOBs including HOBs alone as a negative control. On days 3, 7 and 10, cell viability, migration and proliferation were analyzed by fluorescence staining, scratch wound assay and MTT assay. On days 3, 7 and 10, an increased cell viability was demonstrated for BSM+ compared with BSM− and the control (each p ≤ 0.05). The cell migration was enhanced for BSM+ compared with BSM− and the control after day 3 and day 7 (each p ≤ 0.05). At day 10, an accelerated wound…