Search results for "Imine"
showing 10 items of 2850 documents
Leadership and student learning in higher education
2014
Motivated by the many schools the Presbyterian Church in Cameroon has from primary, post primary and recently a university, I as a member of the academic family join many to acquire leadership skills useful to the students. The goal to influence the students academically and morally calls for much investment in leadership. More so, as a young university, older universities can serve as lenses for our leadership insight. Hence, the research is done in a Finnish university. The research intends to have an in-depth knowledge of how various leadership roles in a university influence student learning. A qualitative method of research has been considered for these findings, using the semi-structu…
The role of informal learning in adults' literacy proficiency
2021
This study used the Programme for International Assessment of Adult Competencies (PIAAC) dataset to examine informal literacy learning’s effects on adults’ literacy proficiency. Also, the factors associated with informal literacy learning at and outside of work were studied. The study participants were Nordic adults aged 35–65 years. The statistical method was regression analysis, and the results indicate that informal literacy activities at work are associated primarily with occupation, and informal literacy activities outside of work with education, parents’ education and gender. Initial education, occupation, language background and age exerted the strongest estimated associations with r…
Adducts of 1,4-diazabutadienes with group IIB metal halides
1981
Abstract The reactions of 1,4-diazabutadienes (or α-diimines) RNC(R′)C(R″)NR, DAB, (R = p -C 6 H 4 OMe, R′ = R″ = H, DAB I ; R = p -C 6 H 4 OMe,R′ = H, R″ = Me, DAB II ; R = p -C 6 H 4 OMe, R′= R″ = Me; DAB III ; R = CMe 3 , R′ = R″ = H, DAB IV ) with MX 2 M = Zn, Cd, Hg; X = CI, Br) yield in general 1/1 adducts. These species are assigned a monomeric configuration with a σ,σ′-N,N′, chelating DAB ligand for M = Zn, Hg, whereas the CdCl 2 adducts have polymeric structures with terminal and/or bridging chlorides. In the reactions of CdCl 2 with DAB I or DAB IV polymeric species [(CdCl 2 ) 2 (DAB)] x are obtained in which all chlorides are bridging. Spectrophotometric dissociation equilib…
Chiral complexes of titanium containing a linked amido-cyclopentadienyl ligand: synthesis, structure, and asymmetric imine hydrogenation catalysis
2000
Abstract A series of mono- and disubstituted derivatives (−)-(S)-Ti(η5:η1-C5Me4SiMe2NCHMePh)(X)Cl (X=CH2SiMe3, BH4) and (−)-(S)-Ti(η5:η1-C5Me4SiMe2NCHMePh)X2 (X=OSO2CF3, OiPr, Me, CH2Ph) was prepared from (−)-(S)-Ti(η5:η1-C5Me4SiMe2NCHMePh)Cl2 without significant racemization at the stereogenic center. The monosubstituted complexes are formed as mixtures of diastereomers. One diastereomeric monoalkyl (STi, SC)-Ti(η5:η1-C5Me4SiMe2NCHMePh)(CH2SiMe3)Cl was characterized by X-ray single crystal structure analysis. When the (−)-(S)-NCHMePh group is attached to planar chiral ring moieties 3-tBuC5H3, C9H6, and C9H5(SiMe3)-3 and coordinated at the titanium center, diastereomeric mixtures are formed…
Investigating young Finnish CLIL pupils’ perceptions of foreign language use through visual narratives
2022
Abstract This article explores how pupils in early CLIL (Content and Language Integrated Learning) education perceive language skills and use. The participants were 25 French-medium and 16 English-medium CLIL pupils in Grade 2 (aged 8 years). They had received CLIL education since the 1st Grade. The data were visual narratives drawn by the pupils and some associated open-ended questions they answered in writing. The data were analyzed using visual and content analysis. The results show that the pupils’ perceptions of language were a combination of traditional and modern views of language. The pupils compartmentalized the different languages as separate entities. They mostly saw language bei…
Tuntuuko, jos tästä painaa? Epäsuoruus, toimintaan kehottaminen ja asiantuntijuus terveydenhuollon ammattilaisten teksteissä
2014
Artikkelissa kasitellaan suomea toisena kielena kayttavien terveydenhuoltoalan ammattilaisten epasuoraa viittaamista henkiloon ja epasuoraa toimintaan kehottamista seka epasuoruuden kytkeytymista asiantuntijuuden muunlaiseen ilmenemiseen teksteissa. Epasuora ilmaustapa on tyypillinen erilaisissa terveydenhuollon tilanteissa, kuten potilaan ja terveydenhuollon ammatilaisen valisessa vuorovaikutuksessa ja kollegojen valisessa viestinnassa. Epasuoraa viittausta kaytetaan esimerkiksi kuvattaessa jonkin ilmion yleisia vaikutuksia keneen tahansa henkiloon tai toisaalta tiettyyn puhuteltavaan, joka jatetaan kuitenkin kielellisesti maarittelematta. Epasuoruus on tyypillista myos kehotettaessa toist…
Exploring the cross-linguistic transfer of reading skills in Spanish to English in the context of a computer adaptive reading intervention
2017
ABSTRACTWe explore the potential of a computer-adaptive decoding game in Spanish to increase the decoding skills and oral reading fluency in Spanish and English of bilingual students. Participants were 78 first-grade Spanish-speaking students attending bilingual programs in five classrooms in Texas. Classrooms were randomly assigned to the treatment (i.e., where students played Graphogame Spanish) for 16 weeks for ten minutes per day (n = 3) versus business as usual instruction (n = 2). Results indicate that students at some risk on Spanish pseudoword reading appeared to benefit the most from playing the game. Analysis of gains suggests a potentially small, but meaningful educational effect…
“You Can Stand Under My Umbrella”: Immersion, CLIL and Bilingual Education. A Response to Cenoz, Genesee & Gorter (2013)
2014
Classrooms the world over are full of people who, for different reasons, are learning additional languages and/or are studying through languages that are not their first. Gaining insight into such contexts is complicated for researchers and practitioners alike by the myriad of contextual variables that come with different implementations and make comparison and generalization a tricky business. We welcome Cenoz et al.’s (2013) article as an important contribution to the debate on how best to tackle this problem. In this Forum piece we would like to, however, redress the balance on two issues: the fact that terminologies have histories and the emphases on the research agenda suggested for fu…
Defending either a personal or an assigned standpoint
2018
Abstract This study clarifies whether a specific type of role play supports upper secondary school students’ collaborative argumentation. Data consist of 12 dyadic face-to-face and 12 chat debates. Data analysis focused on the quality of students’ argumentation. Comparisons were made between students who defended standpoints at variance with their personal opinions on the topics, between the two study modes and topics, and by gender. When the students defended a standpoint differing from their personal opinion, the male students engaged in counterargumentation more often than the female students. When, in turn, the students defended their personal standpoint, they produced both counterargum…
L2 English vocabulary breadth and knowledge of derivational morphology : One or two constructs?
2022
Derivational morphology (DM) and how it can be assessed have been investigated relatively rarely in language learning and testing research. The goal of this study is to add to the understanding of the nature of DM knowledge, exploring whether and how it is separable from vocabulary breadth. Eight L2 (second or foreign language) English DM knowledge measures and three measures of the size of the English vocabulary were administered to 120 learners. We conducted two confirmatory factor analyses, one with one underlying factor and the other treating vocabulary breadth and DM as separate. As neither model had a satisfactory fit without introducing a residual covariance to the two-factor model,…