102,505 research outputs found
"Tecniche, corpi, saperi"
No full textIl saggio descrive l’importanza epistemologica del concetto di “pratica” nell’antropologia contemporanea. A partire dalla contraddizione profonda nella teoria classica fra livello strutturale, oggettivista, macrosociale, e livello personale, fenomenologico ed ermeneutico, le teorie della pratica, da Pierre Bourdieu in poi, si costituiscono come modelli estremamente efficaci per rappresentare le componenti performative della “cultura”, per analizzare la soggettività delle scelte individuali e per fornire prospettive più avanzate nell’interpretazione dell’agire sociale
Diversity of some gene frequencies in European and Asian populations. V. Steep multilocus clines
No full textRegions of abrupt genetic change, which result from either rapid spatial change of selective pressures or limited admixture, were investigated in Europe and Asia on the basis of eight red cell markers typed in 960 samples. Two methods were employed, one based on genetic distances and one on evaluation of the first derivative of the surfaces representing allele-frequency variation. Genetic divergence tends to be maximal between populations that are separated by physical factors (mountain ranges and seas) but also separated by cultural barriers (different language affiliation). This suggests that mating isolation, rather than adaptive response to environmental change, accounts for spatially abrupt genetic change at the loci studied and that cultural differences associated with language contribute to isolating populations. Although selection may have determined two wide allele-frequency gradients, the genetic structure of European and Asian populations seems primarily to reflect isolation by distance when investigated on a small scale and migration patterns (or absence of migration) when investigated on a larger scale
A proposito di un processo specifico della morfologia gergale: la derivazione di nomi mediante il suffisso -oso
No full textBio-based furan-polyesters/graphene nanocomposites prepared by in situ polymerization
No full textIn situ intercalative polymerization has been investigated as a strategic way to obtain poly(propylene 2,5-furandicarboxylate) (PPF) and poly(hexamethylene 2,5-furandicarboxylate) (PHF) nanocomposites with different graphene types and amounts. Graphene (G) has been dispersed in surfactant stabilized water suspensions. The loading range in composites was 0.25–0.75 wt %. For the highest composition, a different type of graphene (XT500) dispersed in 1,3 propanediol, containing a 6% of oxidized graphene and without surfactant has been also tested. The results showed that the amorphous PPF is able to crystallize during heating scan in DSC and graphene seems to affect such capability: G hinders the polymer chains in reaching an ordered state, showing even more depressed cold crystallization and melting. On the contrary, such hindering effect is absent with XT500, which rather induces the opposite. Concerning the thermal stability, no improvement has been induced by graphene, even if the onset degradation temperatures remain high for all the materials. A moderate enhancement in mechanical properties is observed in PPF composite with XT500, and especially in PHF composite, where a significative increase of 10–20% in storage modulus E’ is maintained in almost all the temperature range. Such an increase is also reflected in a slightly higher heat distortion temperature. These preliminary results can be useful in order to further address the field of application of furan-based polyesters; in particular, they could be promising as packaging materials
Abilità manuale e resti 'sacri'. Pratica, creatività e produzione di reliquie
No full textL'articolo focalizza sulle pratiche manuali di religiose di clausura che si occupano della produzione di reliquie attraverso la lavorazione dei resti umani
A phase I trial of 5-fluorouracil, leucovorin and interferon-alpha 2b administered by 24 h infusion in metastatic colorectal carcinoma.
No full textA phase I trial of 5-fluorouracil (5-FU), leucovorin (LV) and interferon (IFN) was conducted in 15 advanced colorectal cancer patients refractory to a bolus regimen of 5-FU/LV. Therapy consisted of a weekly i.v. infusion of 5-FU at 2600 mg/m2 administered concomitantly with LV at 500 mg/m2 over a 24 h period. IFN-alpha 2b was administered by 24 h infusion from the second cycle at escalating dose (4.5, 9, 18 and 27 MU/m2). The maximum tolerated dose of IFN was 18 MU/m2. At 27 MU/m2 two patients complained of diarrhea grade 3, so that the escalation of IFN dose was stopped. Two patients achieved a partial response (IFN level dose 9-18 MU/m2). Eight patients had stable disease. Pharmacokinetics of 5-FU were not influenced by IFN at any level dose. Our results show that doses of IFN of 18 MU/m2 given by a 24 h infusion can be administered safely to an established and active schedule of weekly 24 h infusion of 5-FU and LV. A phase II study has been planned to define the level of activity of this regimen
LEIOMIOMA EPITELIOIDE DEL POLMONE
No full textTHE AUTHORS REPORT A CASE OF PULMONARY LEIOMIOMA. THE SURGICAL TREATMENT IS NOT VERY DIFFERENT FROM THAT OF PULMONARY CANCER. THE EARLY DIAGNOSIS IS VERY IMPORTAN
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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