Search results for "LF"
showing 10 items of 12543 documents
How Does the Type of Migration Influence the Social Functioning of Polish Migrants in the Culture of the Host Country?
2014
The aim of the project was to research the social functioning of labour migrants in the culture of the host country. We were interested in showing the relationship between the time-frame of migration and the dimensions of socio-cultural adaptation. The study was conducted on a N=105 sample of Poles working abroad. A link to an online questionnaire was sent to those who had worked abroad during the study. The subjects were Poles who migrated to various countries in Western Europe. The research was of a quantitative-qualitative nature. The tools used in the study included a measure of Job Satisfaction, a Core Self Evaluation Score, and a questionnaire assessing work abroad. The qualitative pa…
Structural distortions in homoleptic (RE)4A (E = O, S, Se; A = C, Si, Ge, Sn): Implications for the CVD of tin sulfides
2001
The structures of Sn(SBut)4 and Sn(SCy)4 have been determined and adopt S4 and D2 conformations respectively; the anion [(PhS)Sn3]−, as its Ph4P+ salt, has a structure approaching Cs symmetry. In all three compounds, there are large variations in the ∠S–Sn–S within the same molecule, which have been rationalised in terms of the C–S–Sn–S–C conformations. For Sn(SR)4, the ∠S–Sn–S increases as the conformations change from trans, trans to trans, gauche and gauche, gauche, as the number of eclipsed lone pairs decreases and this rationale is shown to be applicable to a variety of A(ER)4 (A = C, Si, Ge, Sn; E = O, S, Se) and related [Mo(SR)4, Ga(SR)4−] systems. AM1 calculations have been used to …
Deposition of tin sulfide thin films from tin(iv) thiolate precursors
2001
AACVD (aerosol-assisted chemical vapour deposition) using (PhS)(4)Sn as precursor leads to the deposition of Sn3O4 in the absence of H2S and tin sulfides when H2S is used as co-reactant. At 450 degreesC the film deposited consists of mainly SnS2 while at 500 degreesC SnS is the dominant component. The mechanism of decomposition of (PhS)(4)Sn is discussed and the structure of the precursor presented.
Estrés por disulfuro en pancreatitis aguda experimental. Implicaciones fisiopatológicas
2014
El estrés oxidativo se define como la alteración en el equilibrio entre las especies oxidantes y antioxidantes, a favor de las primeras. Mientras que hay muchos tipos de daño oxidativo, cada vez más pruebas sugieren un papel importante en la oxidación de proteínas en múltiples enfermedades. Los puentes disulfuro se forman en el citosol durante el estrés oxidativo y funcionan como intercambiadores redox. El glutatión es un tripéptido y es uno de los principales antioxidantes, lo que le confiere un papel clave en numerosas funciones celulares. El estado redox del glutatión se considera el mejor indicador de estrés oxidativo en las células, ya que refleja el equilibrio entre el estado antioxid…
Catalan fiction in the 15th century
2018
Catalan fiction in the 15th century is framed within the context of the expansion of the Crown of Aragon around the Mediterranean, the emergence of Valencia as the cultural capital of the Crown, the crisis in the prevailing mediaeval values, the consolidation of a monetary economy, and fertile contacts between Catalan culture and Castile, France, Burgundy and especially Italy. This is perfectly illustrated by the five most important fictional pieces from that era: Història de Jacob Xalabín, which refers to the Ottoman Empire; Curial e Güelfa, which is set in Italy, France, the German Empire, the eastern Mediterranean and North Africa; Tirant lo Blanc, by Joanot Martorell, which focuses on E…
Self-regulatory efficacy and sources of efficacy in elementary school pupils: Self-regulatory experiences in a population sample and pupils with atte…
2019
In this study, we examined self-regulatory efficacy and sources of self-efficacy (mastery experiences, vicarious experiences, social persuasion and physiological/emotional states) and the relationships between self-efficacy and its sources among elementary school pupils. Two groups were compared: a population sample (PS, N = 1284) and pupils with difficulties in attention and executive functions (AED, N = 61). Data gathered from self-report questionnaires indicated that pupils in the PS group had more positive efficacy beliefs and mastery experiences and fewer negative physiological/emotional states than the AED group. Analyses showed strong connections between sources and self-regulatory e…
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…
Current L2 self-concept of Finnish comprehensive school students : The role of grades, parents, peers, and society
2021
L2 (second/foreign language) motivation research in Finland has been scarce. Furthermore, international motivational research has focused more on ideal and ought-to selves, leaving the current L2 self-concept in the background. In the present study, we attempted to address this gap, exploring what shapes L1 (mother tongue) Finnish students' understanding of themselves as users and learners of L2s. Using structural equation modelling, we studied the relationships between students' (n = 1206) current L2 self-concept and parental encouragement, peer pressure, societal expectations, and grades. We further studied which of these factors are the best predictors of students' current L2 self-concep…
Motivation to learn English : a case study of a 7th grade class
2017
Motivaatiota ja sen vaikutusta kielen oppimiseen on tutkittu laajalti. Tämän tutkimuksen tarkoituksena on selvittää 7. luokkalaisten opiskelumotivaatiota, kun he ovat aloittaneet yläkoulun uudessa koulussa, uudessa luokassa ja uuden opettajan kanssa. Keskeisenä kysymyksenä on: Mikä saa 7. luokkalaisen ymmärtämään motivaation merkityksen englannin kielen opiskelussa? Tämä tutkimus keskittyy oppilaiden narratiivisiin kirjoitelmiin, jossa he tuovat esiin omia näkökulmiaan ja ajatuksiaan oppimiseen motivoivista tekijöistä sekä oppimisen motivaatiota heikentävistä tekijöistä. Tutkimus toteutettiin narratiivisten kirjoitelmien avulla tapaustutkimuksena. Tutkimukseen osallistui oppilaita vain yhde…
Dialogical view on learner agency of immigrant pupils : a case study of the learners of Finnish as L2
2022
This study explores the dialogical nature of agency when two immigrant pupils, who are learning Finnish as their new target language, are authoring their selves. Bakhtin’s dialogism was the inspiration for this examination of the discourses that surround the L2 pupils’ agency and how they respond to discourses through their agency. Ethnographically oriented data collection included classroom observations, the pupils’ portfolios, and interviews with the pupils (as main participants) and meaningful adults. These data yielded a set of narratives from multiple voices. The results show that the pupils negotiate more subjective meanings of their selves, and re-color them with their internal goals…