Search results for " materia"

Evidence of Weak Halogen Bonding: New Insights on Itraconazole and its Succinic Acid Cocrystal

2012

Exact knowledge of the crystal structure of drugs and lead compounds plays a significant role in the fields of crystal engineering, docking, computational modeling (drug–receptor interactions), and rational design of potent drugs in pharmaceutical chemistry. The succinic acid cocrystal of the systemic antifungal drug, itraconazole, reported by Remenar et al. (J. Am. Chem. Soc.2003, 125, 8456–8457) (CSD: IKEQEU), represents one of the classical examples displaying a molecular fitting mechanism in the solid state. In this work, we disclose the X-ray single-crystal structure of the cis-itraconazole–succinic acid (2:1) cocrystal and found that it differs slightly from the previously reported st…

Swelling of cellulose fibres in composite materials: Constraint effects of the surrounding matrix

2013

Swelling of cellulose fibres in composite materials : Constraint effects of the surrounding matrix

Adsorption and Activation of Water on Cuboctahedral Rhodium and Platinum Nanoparticles

2017

Rh and Pt are widely used as the components in heterogeneous catalysts for multiple industrial applications. Because the metals are typically in the form of nanoparticles in real catalysts, it is important to carefully select models for the computational prediction of the catalytic properties. Here we report a first-principles study on the water activation, an important step in numerous catalytic reactions, using the finite-size Rh and Pt nanoparticle models and compare them to the extended surface models. We show that regardless of the model, adsorption and activation of water is practically identical for both metals, whereas the dissociation is energetically more favorable on Rh. The expe…

Taboo or not taboo: a study of taboo content in Finnish EFL learning materials

2011

Tabu on monimuotoinen käsite, jota on vaikea määritellä yksiselitteisesti johtuen sekä tabujen valtavasta määrästä että niiden osittaisesta kulttuurisidonnaisuudesta. Tabuja ja tabukielen esiintymistä oppimateriaaleissa on tutkittu erittäin vähän ja tutkimus onkin keskittynyt lähinnä määrittelemään, mitkä aiheet ovat tabuja maailmanlaajuisissa englannin kielen oppimateriaaleissa. Tutkimuksen kohteena ovat olleet myös mahdolliset riskit, jotka liittyvät tabujen ja tabukielen oppimateriaaleihin sisällyttämiseen. Näitä edellä mainittuja tutkimuksia on tehty pääasiassa Yhdysvalloissa ja Iso-Britanniassa. Aiempien tutkimuksien keskittyessä siihen, mitkä aiheet ovat teoriassa tabuja maailmanlaaju…

Task-Specific Organic Salts and Ionic Liquids Binary Mixtures: A Combination to Obtain 5-Hydroxymethylfurfural From Carbohydrates

2019

The increase in energy demand and depletion of fossil fuels are among major issues of modern society. Valorization and transformation of raw materials in products of industrial value represents a challenge. This justifies the growing interest of scientific research towards the identification of suitable media and methodologies able to pursue above goals, paying attention to matter of sustainability. On this subject, we studied sulfonic-acid functionalized diimidazolium salts as catalysts for the conversion of fructose and sucrose to 5-hydroxymethylfurfural (5-HMF) in an ionic liquid mixture. In general, using these salts allowed us to obtain 5-HMF in good yields from both substrates in mild…

Process and product in non-narrative writing : a teaching material package for the upper secondary school

1997

IEL.22-23-Unit 5. The Protection of the Atmosphere

2023

El document forma part dels materials docents presentants al Servei de Política Lingüística de la Universitat de València, convocatòria Premis Fernando Sapiña 2022 a la qüalitat lingüística en l’elaboració de materials docents en valencià i en anglès. UNIT 5.-THE PROTECTION OF THE ATMOSPHERE. 1. General aspects: Long-Range Transboundary Air Pollution Convention, 1979. 2. Vienna Convention for the Protection of the Ozone Layer. 3. Legal instruments regulating Climate Change: UNFCCC; Kyoto Protocol; Paris Agreement; COP26 - Glasgow Climate Pact

Welcome to M-Campus : raising awareness of skills and motivation through an electronic learning module

2004

Suomea sukulaisille: Maticsák Sándor & Anna Tarvainen 2002. Finn Nyelv

2002

Kirja-arvio Sándor, Maticsák & Tarvainen, Anna : Finn nyelv nonPeerReviewed

VERNACULAR ARCHITECTURE IN INSULAR ITALY: HERITAGE TO PRESERVE AND VALUE

2021

The Mediterranean civilisation, in its millenary history, has also expressed itself through particular artefacts that have strongly characterised the territory. Knowledge of the artefacts that "qualify" a territory, both in historical and material terms, is a necessary prerequisite for tackling the planning and management problems relating to their protection and conservation. The architecture of the "vernacular" is linked to domestic life, customs, the "dialects" of places and the essence of the Genius Loci. The building heritage of the islands surrounding Sicily features special building techniques and systems that exploit natural resources to generate original artefacts and extremely fun…