Search results for "imine"
showing 10 items of 2850 documents
Teachers as frontline agents of integration: Finnish physical education students’ reflections on intercultural encounters
2018
Background and purpose: This article focuses on how future Physical Education and Dance teachers may be better prepared to work in increasingly diverse education environments. It also discusses how tertiary institutions might address issues of social inclusion and cultural pluralism within their programmes, courses and assignments. The authors critically reflect on an experiential learning intervention in Jyväskylä, Finland, in which trainee PE teachers facilitated kinaesthetic language-learning workshops for asylum seekers. The applied use of physical education and dance in this context was aimed at providing a distinct opportunity to consider a PE teacher’s professional competence and rol…
Agency and Learning in the Work of Software Professionals
2017
This chapter addresses software professionals’ agency and learning in work characterized by a need for innovative learning and fluency in renewing work practices. The study presented was conducted with software professionals in a medium-sized Finnish company producing digital business applications. We applied a mixed-method approach to data collection and analysis. Regarding professional agency, we found a range of opportunities to influence work-related matters. The professionals were primarily able to influence their working hours and the order of their work tasks, but had fewer opportunities to influence customer projects, or their salary. To some extent they were able to develop themsel…
Data-driven decision support to reduce "driving-under the influence of alcohol" offenses
2018
Extracting valuable knowledge from data to support decision making is a widely practiced trend. Data-driven decision support (DDDS) provides insight for decision makers by exploring and extracting underlying patterns within a dataset. This thesis covers the process of DDDS in reducing driving under the influence of alcohol (DUI) offenses by introducing proposed prison sentences. In this thesis, DDDS is applied to a DUI dataset by analyzing patterns in the dataset and by introducing proposed prison sentences for offenders to reduce the number of DUI cases. Background theories in data mining, machine learning, optimization and decision science that are related to the thesis project are also c…
Come si diventa devianti
2019
Annoverato tra i classici della sociologia della devianza e, più complessivamente, della riflessione socio-criminologica contemporanea, Come si diventa devianti merita di essere riproposto – a cinquant’anni dalla sua pubblicazione – anche a nuove generazioni di studiosi e lettori. Il testo, presentato in una versione aggiornata, sollecita con inedita attualità la necessità di utilizzare un approccio naturalistico che tenga conto della prospettiva soggettiva dello stesso soggetto “deviante”. Confutando ogni deriva positivista e riflettendo criticamente sugli approcci classici, David Matza pone le basi per una sociologia pubblica della devianza e del crimine e sottolinea l’importanza della re…
Principali pubblicazioni di David Matza
2019
Principali pubblicazioni di David Matza
Ruthenium Metallodendrimers Based on Nitrile‐Functionalized Poly(alkylidene imine)s
2005
The preparation of the first- and second-generation of nitrile-functionalized poly(alkylidene imine) dendrimers with the organometallic ruthenium complex [Ru(η5-C5H5)(PPh3)2Cl] peripherally attached is described. The reaction of N,N′-bis(cyanomethyl)piperazine (1), N,N′-bis[N′′,N′′′-bis(cyanoethyl)aminoethyl]piperazine (2), or N,N,N′,N′-tetrakis(cyanoethyl)ethylenediamine (3) with [Ru(η5-C5H5)(PPh3)2Cl] (4) in the presence of TlPF6 gives the new air-stable ruthenium metallodendrimers 5, 6, and 7, respectively. These stable metallodendrimers are easily prepared and represent a novel quantitative method to solidify and chromatographically purify the otherwise semi-liquid nitrile-functionalize…
Ligand dynamics of tert-butyl isocyanide oxido complexes of molybdenum(IV).
2014
The six-coordinate molybdenum(IV) oxido isocyanide complex 1 [Δ,Λ-OC-6-2-3-[MoO(N(p)∩N(i))2(CN(t)Bu)]; N(p)∩N(i) = 4-tert-butylphenyl(pyrrolato-2-ylmethylene)amine] is obtained in diastereomerically pure form in the solid state, as revealed by single-crystal X-ray diffraction. In solution, this stereoisomer equilibrates with the Δ,Λ-OC-6-2-4 diastereomer 2 at ambient temperature. The stereochemistry of both isomers has been elucidated by NMR, IR, and UV/vis spectroscopy in combination with density functional theory (DFT)/polarizable continuum model and time-dependent DFT calculations. The isomerization 1 → 2 is suggested to proceed via a dissociative trigonal twist with dissociation of the …
Synthesis and reactivity of an 2-azabutadiene-based π-conjugated dithioether: Formation of a N,S-ligated molybdenum chelate complex and C,N,S-pincer …
2005
Abstract Nucleophilic attack of sodium isopropylthiolate on 4,4-dichloro-1,1-diphenyl-2-azabuta-1,3-diene [Cl2C C(H)–N CPh2}] (1) affords the 2-azabutadiene derivative [(i-PrS)2C C(H)–N CPh2] (2). Upon irradiation of Mo(CO)6 in THF in the presence of 2, the chelate complex cis-[(OC)4Mo{(i-PrS)2C C(H)–N CPh2}] (3) is obtained. Coordination on Mo occurs through the imine nitrogen and a thioether group. Polydentate dithioether 2 acts as N,C,S-pincer ligand after orthometallation reaction with Pd(II) or Pt(II). The molecular structures of 2 and (C,N,S)-[(i-PrS)2C C(H)–N C(Ph)C6H4)PtCl] (4b) have been determined by X-ray diffraction studies.
Theoretical study of isomerism in phenoxyimine-based precursors of coordinative olefin polymerization catalysts
2010
Precursors of post-metallocene olefin polymerization catalysts, unlike their predecessors, are usually octahedral transition metal complexes with multidentate ligands. Such ligands may wrap around the central atom in many ways, thus yielding several isomeric species. For a wide range of phenoxyimine (FI) ligands with different substituents, all the theoretically predicted diastereomers of group 4 and 5 complexes are available synthetically. However, only one of the isomers is usually preferred, and this is determined by the nature of the substituents in the FI ligand. The origin and mechanism of such preference has not been completely elucidated. We attempted to describe it quantitatively o…
A Co(III) complex of carbonic anhydrase inhibitor methazolamide and the amino-imino ‘aib’ ligand formed by reaction of acetone and ammonia
1993
Abstract Reaction of Co(NO 3 ) 2 ·6H 2 O with methazolamide {[ N -(3-methyl-5-sulfamoyl-1,3,4-thiadiazol-2(3 H )-ylidene)acetamide] (Hmacm)} and ammonia in acetone to produce [Co(methazolamidate)(2-methyl-2-amino-4-iminopentane) 2 (NH 3 )](NO 3 ) 2 ·2H 2 O is described. The ligand 2-methyl-2-amino-4-iminopentane (aib) is the product obtained from the condensation of two ammonia and two acetone molecules. The complex crystallizes in the monoclinic space group P 2 1 / c with a =16.713(5), b =9.180(1), c =20.273(1) A, β=97.44(4)° for Z =4. The R value is 0.081 for 2150 significant reflections. The Co(III) ion exhibits a nearly regular octahedral arrangement with the CoN bond distances in the …