Search results for "Materiali"
showing 10 items of 876 documents
POSS Grafting on Polyethylene and Maleic Anhydride-Grafted Polyethylene by One-Step Reactive Melt Mixing
2018
This study reports the one-step reactive melt mixing preparation of organic-inorganic hybrid based on maleic anhydride-grafted polyethylene and 3-(2-aminoethyl)aminopropyl-heptaisobutyl substituted polyhedral oligomeric silsesquioxane, (NPOSS), as well as on low-density polyethylene and allyl-heptaisobutyl-POSS (1POSS) in dicumyl peroxide presence, which is believed to activate the unsaturation of the reactive functional group of POSS itself. The successful grafting of POSS molecules onto polymeric backbones was probed through rheological and spectroscopic analysis. Grafting of POSS molecules enhances their dispersion in the polymeric matrix as shown by morphological analysis. Moreover, the…
Sintesi di ossadiazoli fluorurati come nuovi Low molecular weight hydrogelators
2010
Perfluorocarbons–graphene oxide nanoplatforms as biocompatible oxygen reservoirs
2018
Abstract 3-Pentadecafluoroheptyl,5-perfluorophenyl-1,2,4-oxadiazole (FOX) molecules were attached onto a graphene oxide (GO) via a facile aromatic substitution in alkaline environment. This approach allows achieving high degree of functionalization under mild conditions. The covalent attachment of perfluoromoieties onto GO lamellae was confirmed by spectroscopic analyses. The performance of these nanoplatforms (GOF) as oxygen reservoirs was assessed at different concentrations and temperature. The results revealed that under physiologic conditions GO and FOX synergistically operate for increasing oxygen uptake and release, either from a thermodynamic and a kinetic point of view. Even at low…
Einübung in das Denken. Gérard Granels ‚Introduction‘ zu seiner Übersetzung von Martin Heideggers Was heißt Denken?
2018
Im Beitrag wird Gérard Granels "introduction“ zu seiner "traduction" von Heideggers "Was heißt Denken?" vorgestellt, die Ende der Fünfzigerjahre in Zusammenarbeit mit dem deutschen Aloys Becker entstand und 1959 erstmalig bei den Presses Universitaires de France erschien. Dieser sprachlich und gedanklich bemerkenswert dichte Übersetzungskommentar Granels ist im Hinblick auf die Frage nach dem Verhältnis von Theorie und Praxis des Übersetzens, die als Frage nach der Möglichkeit einer Überwindung gestellt wird, umso aufschlussreicher, als bereits die heideggersche Vorlage wesentlich um den Zusammenhang von Denken und Übersetzen, Sprachmaterialität und Sinnschöpfung kreist.
COMPARISON OF CRIMSON FOUNTAINGRASS AND DISS FIBRES AS AGGREGATES FOR CEMENT MORTARS
2019
The use of natural fibres in cement composites is an expanding research field as their use can improve the mechanical and thermal behavior of cement mortars and reduce their carbon footprint. In this paper two different wild grasses, i.e. Pennisetum Setaceum, also known as crimson fountaingrass, and Ampelodesmos Mauritanicus, also called diss, are used as source of natural fibres for cement mortars. The principal aim is to evaluate the possibility of using the more invasive crimson fountaingrass in place of diss inside cement based vegetable concrete. The two plants’ fibres have been characterized by means of electron microscopy, helium picnometry; moreover, the thermal conductivity of fibr…
Materialities in supported housing for people with mental health problems : a blurry picture of the tenants
2020
Our daily lives and sense of self are partly formed by material surroundings that are often taken for granted. This materiality is also important for people with mental health problems living in supported housing with surroundings consisting of different healthcare services, neighbourhoods, buildings or furniture. In this study, we explored how understandings of tenants are expressed in the materialities of supported housing. We conducted ethnographic fieldwork in seven different supported accommodations in Norway and analysed the resultant field notes, interviews, photographs and documents using Situational Analysis. The analysis showed that supported housing materialities expressed a blur…
Äärellisyysfilosofia kaappaa Kantin?
2021
Evaluation of Cement Content in Hardened Concrete
2011
Kant and the scientific study of consciousness.
2010
We argue that Kant’s views about consciousness, the mind—body problem and the status of psychology as a science all differ drastically from the way in which these topics are conjoined in present debates about the prominent idea of a science of consciousness. Kant never used the concept of consciousness in the now dominant sense of phenomenal qualia; his discussions of the mind—body problem center not on the reducibility of mental properties but of substances; and his views about the possibility of psychology as a science did not employ the requirement of a mechanistic explanation, but of a quantification of phenomena. This shows strikingly how deeply philosophical problems and conceptions c…
Rationalitäten der Wissenproduktion: Über Transformationen von Gegenständen, Technologien und Information in Biomedizin und Lebenswissenschaften
2009
Rationalities of Knowledge Production: On Transformations of Objects, Technologies and Information in Biomedicine and the Life Sciences. Since decades, scientific change has been interpreted in the light of of paradigm shifts and scientific revolutions. The Kuhnian interpretation of scientific change however is now more and more confronted with non-disciplinary thinking in both, science and studies on science. This paper explores how research in biomedicine and the life sciences can be characterized by different rationalities, sometimes converging, sometimes contradictory, all present at the same time with varying ways of influence, impact, and visibility. In general, the rationality of obj…