Search results for "Scientific"
showing 10 items of 1193 documents
Piano Nazionale Lauree Scientifiche – Fisica: un percorso di laboratorio sulle tematiche energetiche
2011
Il terremoto avvenuto in Giappone l'11 Marzo del 2011 ha riaperto il dibattito sull'energia quale elemento centrale di sviluppo della societa' moderna. L'esperienza didattica su tematiche energetiche, maturata a Palermo nell'ambito del Piano Nazionale Lauree Scientifiche - Fisica (PLS-Fisica), si inserisce in questo contesto. Noi proponiamo un percorso formativo di laboratorio riguardante tematiche energetiche, al fine di stimolare i docenti di fisica a portare in aula e in laboratorio questi argomenti e contribuire cosi' ad aumentare la consapevolezza che gli studenti hanno riguardo alle fonti energetiche rinnovabili, ma anche riguardo alle fonti basate sui combustibili fossili e nucleari.…
Effects of pilates exercise programs in people with chronic low back pain: a systematic review
2015
The Pilates method has recently become a fast-growing popular way of exercise recommended for healthy individuals and those engaged in rehabilitation. Several published studies have examined the effects of Pilates method in people with chronic low back pain (LBP). The objective of this study is to describe and provide an extensive overview of the scientific literature comparing the effectiveness of the Pilates method on pain and disability in patients with chronic nonspecific LBP. The study is based on the data from the following sources: MEDLINE-NLM, MEDLINE-EBSCO, Scopus Elsevier, Cochrane, DOAJ, SciELO, and PLOSONE. Original articles and systematic reviews of adults with chronic nonspeci…
Publishing studies
2015
In some parts of the world, Publishing Studies are a fairly well-established field of research as well as of higher education. Not least since this is not so much the case in continental Europe, the Publishing Studies community increasingly sees a more elaborated self-concept as an important prerequisite for a prosperous further development of the field in research as well as in teaching. This paper starts off by relating the question for an advanced self-concept of Publishing Studies to the question what criteria have to be fulfilled to call a field (like Publishing Studies) a scholarly discipline. As the second source for the possible formation of a more elaborate self-concept, the paper …
Nitroarene hydrogenation catalysts based on Pd nanoparticles glued with PDA on inorganic supports: Multivariate Curve Resolution as an useful tool to…
2021
[EN] Two green catalysts based on Pd(0) nanoparticles (Pd NPs) anchored through PDA on porous silica and magnetite have been synthesized using a generalized simple and reproducible "two-step" methodology. Both catalysts were tested for a model reaction, the hydrogenation of 4-nitrophenol using NaBH4 as the hydrogenating agent, and especially good activity has been achieved in the case of the catalysts containing magnetite as inorganic core (Pd NPs-PDA@Fe3O4). We analyzed the effect associated with the catalyst separation method (centrifugation or magnetically) that affect to the distribution and aggregation degree of the Pd NPs. In addition, we also correlate the final catalyst morphology w…
L’oggettività nelle teorie scientifiche rispetto alle pratiche del “discorso dominante” in Foucault
2022
The correspondence theory of truth can be arranged in such a way as to contain aspects of a “molecular” holism, in which background knowledge is linked but kept distinct from the content of the single proposition. Within this perspective, a proposition can still be a “representation” of a fact, always approximate and renegotiable, which nonetheless highlights the structure of the state of affairs in order to also illuminate the molecular group of states of affairs, of finite number, connected to the fact. Theories describe or represent real aspects of the world, but these aspects can always be analyzed in more depth, and they are never definitive, similar to the different levels of reality …
How (Not) to Write the History of Pragmatist Philosophy of Science?
2008
This survey article discusses the pragmatist tradition in twentieth century philosophy of science. Pragmatism, originating with Charles Peirce's writings on the pragmatic maxim in the 1870s, is a background both for scientific realism and, via the views of William James and John Dewey, for the relativist and/or constructivist forms of neopragmatism that have often been seen as challenging the very ideas of scientific rationality and objectivity. The paper shows how the issue of realism arises in pragmatist philosophy of science and how some pragmatists, classical and modern, have attempted to deal with it. Various dimensions of the realism dispute are thus discussed, especially realism as c…
Pragmatist Perspectives on Theological and Religious Realism
2014
This essay first applies the general issue of realism vs. antirealism to theology and the philosophy of religion, distinguishing between several different ‘levels’ of the realism dispute in this context. A pragmatic approach to the problem of realism regarding religion and theology is sketched and tentatively defended. The similarities and differences of scientific realism, on the one hand, and religious and/or theological realism, on the other hand, are thereby also illuminated. The concept of recognition is shown to be crucially relevant to the issue of realism especially in its pragmatist articulation.
Latvijas Universitātes 95 mirkļi
2014
Latvijas Universitātes 95. gadadienai veltīts izdevums. -- The edition dedicated to the 95th anniversary of the University of Latvia
Elucidation of reaction process between solid tricalcium silicate and a lanthanum salt solution in connection with the precipitation pH. Extension to…
1993
Abstract Dissolution of tricalcium silicate is strongly accelerated in a La salt solution and releases the amounts of OH, Ca and silicate ions just required to precipitate all of lanthanum at pH 8. It remained to be proved that (1) La silicate hydrate could form at pH 8, and (2) Ca silicate hydrate could not precipitate simultaneously. The plot of silicate hydrate and hydroxide precipitation pH of La, Ca and other elements (Th, Zr) against the dropped volume of K2SiO3 and KOH solution and some physico-chemical characterization methods bring affirmative answers to these questions and allow the immobilization process of La and other elements in the presence of tricalcium silicate to be better…
A transdisciplinary educational experience at the Botanical Garden around scientific travelers
2019
In the framework of the transdisciplinary educational innovative project “Sciences and Arts” at the University of Valencia, we present here the design and outcome of an activity around the phenomenon of scientific travelers. It consisted in a scientific-literary tour through the Botanical Garden of the University of Valencia, that 100 students from the subjects “Natural Sciences for teachers” and “Literary training for teachers” attended. The activity was designed as a collaborative work in which scientific travelers served as a pretext to address six educational aspects that the students from each subject tackled in two different ways: from a more scientific than literary approach and vice…