Search results for "Mixed"

Teaching and learning business ethics in a multicultural group

2017

Mixed Titanium–Hafnium Chloridometallate Complexes

2007

The addition of either NEt 3 BzCl or [Ph 3 PNPPh 3 ]Cl (1 equiv. chloride per metal) to a 1:1 mixture of HfCl 4 and TiCl 3 in SOCl 2 results in Ti oxidation and leads to the corresponding salts of the [TiHfCl 10 ] 2- ion. A solution IR investigation in the v(M-Cl) region indicates that this ion is in equilibrium with the homodimetallic [Ti 2 Cl 10 ] 2- and [Hf 2 Cl 10 ] 2- ions. An X-ray study of the NEt 3 Bz + salt reveals an edge-sharing bioctahedral dianion sitting on a crystallographic inversion centre. The crystal is a solid solution of different species with compositional disorder at the metal site, each metal position having the occupancy Ti 0.685 Hf 0.315 . The M-M and M-Cl distance…

Regulatory O 2 tensions for the synthesis of fermentation products in Escherichia coli and relation to aerobic respiration

1997

In an oxystat, the synthesis of the fermentation products formate, acetate, ethanol, lactate, and succinate of Escherichia coli was studied as a function of the O2 tension (pO2) in the medium. The pO2 values that gave rise to half-maximal synthesis of the products (pO0. 5) were 0.2-0.4 mbar for ethanol, acetate, and succinate, and 1 mbar for formate. The pO0.5 for the expression of the adhE gene encoding alcohol dehydrogenase was approximately 0.8 mbar. Thus, the pO2 for the onset of fermentation was distinctly lower than that for anaerobic respiration (pO0.5/= 5 mbar), which was determined earlier. An essential role for quinol oxidase bd in microaerobic growth was demonstrated. A mutant de…

An Iterative Approach to Dynamic Elastic-Plastic Analysis

1998

The step-by-step analysis of structures constituted by elastic-plastic finite elements, subjected to an assigned loading history, is here considered. The structure may possess dynamic and/or not dynamic degrees-of-freedom. As it is well-known, at each step of analysis the solution of a linear complementarity problem is required. An iterative method devoted to solving the relevant linear complementarity problem is presented. It is based on the recursive solution of a linear complementarity, problem in which the constraint matrix is block-diagonal and deduced from the matrix of the original linear complementarity problem. The convergence of the procedure is also proved. Some particular cases …

Evaluación de la investigación sobre la pedagogía Construcción de Conocimiento: un enfoque metodológico mixto

2020

Knowledge Building (KB) is a theoretical framework that promotes collective inquiry through the resolution of knowledge problems that are relevant for certain educational community. There is an increasing number of authors looking into benefits of this approach, thus an overview of the trends of research is needed. The aim of this study is to provide the state of the art concerning the research production on Knowledge Building pedagogy including trends and relevant issues. In this study a sequential explanatory design was applied. Both quantitative (scientometric analysis) and qualitative (systematic review) approaches were applied. The sample was selected from the most recent productions p…

Stakeholder Strategy and Design Alignment Framework for Design Science Research – A Study in the Context of VR-Aided Marketing and Sales

2020

This study introduces a framework to align various perceptions and objectives that different stakeholders have at the beginning of a Design Science Research (DSR) process and consolidate them into stakeholders’ strategies and theory-ingrained design artifacts. We coin this framework as Stakeholder Strategy and Design Alignment (SSDA). As an application area, we concentrate on a Virtual Reality (VR) application designed for marketing and sales purposes. The empirical testing of the framework shows that the marketing and sales potential of the application are, indeed, perceived very differently among three stakeholder groups: company representatives, developers and customers. In addition to t…

Supporting Creativity and Learning at Work : Practices and Structures from Growth Companies

2021

The constant change embedded in contemporary working life requires employees and organisations alike to continuously learn and, simultaneously, adapt and be creative. The potential to attract, manage and engage creative people, as well as support learning, has become increasingly important in organisational contexts. It is essential to recognise what the underlying learning theories are and how they connect with the current understanding of creativity. It is also important to study different manifestations of creativity and learning and reactively and proactively discover ways of supporting and developing both aspects in contemporary organisations. In this chapter, we first present our appr…

Imbalanced Job Polarization and Skills Mismatch in Europe

2016

Abstract This paper considers the education of the labour force based on an analysis of trends in and the relationships between job polarization and skills mismatch. Both job polarization and skills mismatch have become topics of increasing interest, but relationships between the two have been relatively neglected in the literature. We argue that the relationship between polarization and skills mismatch is an empirical matter, which we analyse at both the macroeconomic and microeconomic level in European countries. A novel job polarization index (JPI) is proposed to measure imbalanced job polarization. It takes into account not only the change in the share of medium-level jobs, as is typica…

Recruitment through migrant social networks from Latvia to the United Kingdom: Motivations, processes and developments

2015

A burgeoning body of literature exists in relation to the role of social networks in connecting migrant workers with employment opportunities, particularly in lower wage jobs. This evidence points to social networks being an attractive recruitment channel from the perspective of both migrants seeking employment and employers seeking employees. This analysis presents a wide breadth of original material, which examines recruitment through social networks from the perspective of both migrants and employers. This includes data drawn from an extensive mixed methods approach involving a novel online survey of Latvian migrants in the UK and face-to-face interviews with British low-wage employers. …

Monohydroxylated fatty acid substrate specificity of human leukocyte 5-lipoxygenase and ω-hydroxylase

1988

Various monohydroxylated fatty acids were synthesized from eicosapolyenoic acids, namely arachidonic (20:4 omega-6), timnodonic (20:5 omega-3), dihomogammalinolenic (20:3 omega-6) and mead (20:3 omega-9) acids. 12-Hydroxy derivatives, as well as 12-hydroxy-5,8,10-heptadecatrienoic acid (HHT), were produced with platelets as the enzyme source, and 15-hydroxy derivatives were produced by soya bean lipoxygenase treatment. Each monohydroxylated fatty acid was incubated with human leukocytes in the presence or absence of the calcium ionophore A23187, and dihydroxylated products were analysed by h.p.l.c. 12-Hydroxy derivatives of 20:4 omega-6, 20:5 omega-3 and 20:3 omega-9 were similarly oxygenat…