Search results for "Transition"

A systematic literature review of the transition to the circular economy in business organizations: Obstacles, catalysts and ambivalences

2021

There is a need for a transition from unsustainable linear business models to a more sustainable circular approach, called the circular economy. To promote this need, a deeper understanding of which issues hinder organizations’ transition to the circular economy and which ones catalyse it is needed. A systematic literature review was performed on the business implementation of the circular economy and 69 articles covering the topic were found. The review identifies different types of catalyst, obstacles and ambivalent factors influencing circular economy implementation in business. This study contributes to research on circular economy implementation at business organizations by providing u…

Transition to Digital Distribution Platforms and Business Model Evolution

2019

How do business models evolve when technology-based firms move from physical distribution channels to digital distribution platforms? This is an important question, since digitalization of distribution platforms provides new opportunities to expand the reach and customer base of technology-based firms. Based on an in-depth multi-case study of four Japanese high-tech firms, we seek to expand our understanding of digital transformation and business model literature. Our findings indicate that that through digital transformation, the case firms’ business models evolved toward more constant interaction with the market, in particular through digital platforms. This interaction includes growing a…

Dynamics of supercooled confined water measured by deep inelastic neutron scattering

2017

In this paper, we present the results of deep inelastic neutron scattering (DINS) measurements on supercooled water confined within the pores (average pore diameter ~ 20 Å) of a disordered hydrophilic silica matrix obtained through hydrolysis and polycondensation of the alkoxide precursor Tetra-Methyl-Ortho-Silicate via the sol-gel method. Experiments were performed at two temperatures (250 K and 210 K, i.e., before and after the putative liquid–liquid transition of supercooled confined water) on a “wet” sample with hydration h ~ 40% w/w, which is high enough to have water-filled pores but low enough to avoid water crystallization. A virtually “dry” sample at h ~ 7% was also inve…

Experimental evidence for a liquid-liquid crossover in deeply cooled confined water.

2014

International audience; In this work we investigate, by means of elastic neutron scattering, the pressure dependence of mean square displacements (MSD) of hydrogen atoms of deeply cooled water confined in the pores of a three-dimensional disordered SiO 2 xerogel; experiments have been performed at 250 and 210 K from atmospheric pressure to 1200 bar. The " pressure anomaly " of supercooled water (i.e., a mean square displacement increase with increasing pressure) is observed in our sample at both temperatures; however, contrary to previous simulation results and to the experimental trend observed in bulk water, the pressure effect is smaller at lower (210 K) than at higher (250 K) temperatur…

The boson peak of deeply cooled confined water reveals the existence of a low-temperature liquid-liquid crossover.

2014

International audience; The Boson peak of deeply cooled water confined in the pores of a silica xerogel is studied by inelastic neutron scattering at different hydration levels to separate the contributions from matrix, water on the pore surfaces and "internal" water. Our results reveal that at high hydration level, where the contribution from internal water is dominant, the temperature dependence of the Boson peak intensity shows an inflection point at about 225 K. The complementary use of differential scanning calorimetry to describe the thermodynamics of the system allows identifying the inflection point as the signature of a water liquid-liquid crossover.

Synthesis of isomorphous cobalt and nickel thiocyanate coordination compounds: Effect of metals on compound properties

2019

The reaction of 2-methylpiperazine with the thiocyanate ligand and two transition metals leads to the production of two new isomorphous [ML2SCN4] where L is the 2-methylpiperazine and [M =Co (1), and Ni (2)], presenting an octahedral configuration. These compounds were characterized by single crystal X-ray crystallography, TG-DTA analysis, as well as infrared and UV-Vis spectroscopy and TG-DTA. The magnetic and antibacterial properties were also determined. Through the link with N-H···S hydrogen bonds, a global 3D network was established. The studied compounds show the metal center’s impact leading to different properties. Indeed, the first compound shows high spin orbit coupling, whereas t…

A longitudinal analysis of the occupational status of the graduates of the University of Palermo

The availability of a large amount of longitudinal data provided by the surveys carried out by STELLA (Statistics about Graduates and Labour Market) allowed us to describe the occupational paths of graduates of the University of Palermo. In this paper we refer to a disproportionate stratified sample of graduates in 2009, interviewed three dierent times: one year (2010), three years (2012), ve years (2014) after the graduation. In such a global economic crises context, our aims are describing the labour market of the Palermitan graduates, identifying the variables that influence most their occupational status and nally outlining a transition probability structure among the states: Work, Sear…

The Concordance between Teachers’ and Parents’ Perceptions of School Transition Practices: A Solid Base for the Future

2015

This study focuses on parents’ and teachers’ perceptions of practices aimed at easing the transition to formal schooling (e.g., familiarization with the school, discussions about the school entrants). A total of 230 preschool teachers, 131 elementary school teachers, and 2,662 mothers and fathers filled in a questionnaire containing items on how important they considered different preschool-school transition practices. The participants considered the various transition practices to be at least somewhat important. On average, familiarization with the school was considered to be most important, whereas teacher co-operation and joint writing of curricula were considered to be least important. …

Children’s Emotions in Educational Settings: Teacher Perceptions from Australia, China, Finland, Japan and Spain

2019

The transition to formal education is a critical transition in children’s lives that has importance for socio-emotional and behavioral functioning. In the transition process, teachers are key players who work intensively with children and their families. This article focuses on teachers’ perceptions of children´s socio-emotional behavior during the transition from preschool to primary school. We collected qualitative teacher interviews from 112 teachers from five different countries—Australia, China, Finland, Japan and Spain. The research questions were: (1) How do teachers in the five countries perceive children’s abilities in expressing and regulating emotions. (2) How are children’s emot…

Marriage, sexuality, and holiness: Aspects of marital ethics in the <i>Corpus Paulinum</i>

2011

A fundamental change in the understanding of marriage becomes apparent in the first century A.D., described by M. Foucault as the transition from a “matrimonial” to a “conjugal” marital concept. While early Christianity participated in this development, it also influenced it at decisive points and developed its own marital ethics. Through a consideration of philosophical (Musonius, Plutarch) and early Judaic (esp. Qumran, Jubilees) texts, this article outlines the marital concepts existing in the NT environment. In this context, the reciprocal community and the duration of the marital relationship are emphasized while sexuality remains wholly limited to reproduction. The core of the article…