Search results for "Latin."
showing 10 items of 3698 documents
Diversidades geográficas e construção de um conhecimento crítico para participar em rede. A experiência do Geoforo Iberoamericano. Balanço inicial
2011
The diversity of people, cultures and social situations in Latin America countries does not obstruct the critical and honest dialogue concerning the research carried out on the learning of world problems. Geography, as a science, can contribute to this challenge, but it needs, then, to leave the intellectual, corporate and academic obstacles that prevent its study by the pupils. In this work we communicate the initiatives developed by a group of teachers by means of the Geoforo, which takes advantage of the facilities of the cyberspace, from the Geocrítica portal of the University of Barcelona.
Scientific productivity and collaboration in viticulture and enology in Latin American countries
2013
[EN] The aim of this study was to analyze the scientific activity of Latin American researchers in viticulture and oenology through bibliometric analyses of articles included in the Science Citation Index Expanded database for the period of 2006 to 2010. A total of 917 research articles were published in 364 domestic and international journals. We highlight the important growth in the number of research papers published during the period, especially in Brazil, Argentina and Chile, as well as an increasing number of international collaborations, mainly with non-American grape- and-wine producing countries. A social network analysis of collaborations between institutions and countries was als…
Sconfinamenti. La strana storia della letteratura in Roma antica
2018
Oggetto di questo contributo è l'analisi di come, nella letteratura latina, lo “sconfinamento” rappresenti un principio vitale e virale di rinnovamento, che funziona sul piano delle forme letterarie ma anche delle idee, dei significati, delle proposte etiche e politiche che queste vogliono mettere in circolo.
Design and Characterization of Effective Ag, Pt and AgPt Nanoparticles to H₂O₂ Electrosensing from Scrapped Printed Electrodes.
2019
The use of disposable screen-printed electrodes (SPEs) has extraordinarily grown in the last years. In this paper, conductive inks from scrapped SPEs were removed by acid leaching, providing high value feedstocks suitable for the electrochemical deposition of Ag, Pt and Ag core-Pt shell-like bimetallic (AgPt) nanoparticles, onto screen-printed carbon electrodes (ML@SPCEs, M = Ag, Pt or AgPt, L = metal nanoparticles from leaching solutions). ML@SPCEs were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The results were compared to those obtained when metal nanoparticles were synthesised using standard solutions of metal salts (MS@…
Vanadium Toxicity Monitored by Fertilization Outcomes and Metal Related Proteolytic Activities in Paracentrotus lividus Embryos
2022
Metal pharmaceutical residues often represent emerging toxic pollutants of the aquatic environment, as wastewater treatment plants do not sufficiently remove these compounds. Recently, vanadium (V) derivatives have been considered as potential therapeutic factors in several diseases, however, only limited information is available about their impact on aquatic environments. This study used sea urchin embryos (Paracentrotus lividus) to test V toxicity, as it is known they are sensitive to V doses from environmentally relevant to very cytotoxic levels (50 nM; 100 nM; 500 nM; 1 µM; 50 µM; 100 µM; 500 µM; and 1 mM). We used two approaches: The fertilization test (FT) and …
Semi densi, semi sottili. Infertilità e Harmoniae Veneris (a proposito di Lucr. IV, 1240-1277)
2010
Indagine sui principi di riproduzione considerati da Lucrezio e sulle forme di accoppiamento, soprattutto in rapporto alla fecondazione umana.
Parola e silenzio nell'ultimo Cicerone: il caso della Philippica I
2017
Il silenzio e la parola sono, più che temi posti ad oggetto della riflessione dell’ultimo Cicerone, poli di una dialettica identitaria entro la quale egli prova a far rientrare il proprio profilo esistenziale. Tornato a Roma dopo Farsàlo, dopo esser rimasto a lungo in attesa del benestare al suo rientro da parte di Cesare, nell’aprile del 46 Cicerone rompe il silenzio completando in breve tempo il Brutus. Si tratta di un’opera dal profilo letterario ibrido cui egli affida il compito di testimoniare il suo ritorno entro una dinamica di reciprocità amicale, letteraria e sociale attraverso una ricostruzione dell’oratoria romana, ad uso di una compagine politica di cui, negli eventi convulsi de…
Design and Characterization of Effective Ag, Pt and AgPt Nanoparticles to H2O2 Electrosensing from Scrapped Printed Electrodes
2019
The use of disposable screen-printed electrodes (SPEs) has extraordinarily grown in the last years. In this paper, conductive inks from scrapped SPEs were removed by acid leaching, providing high value feedstocks suitable for the electrochemical deposition of Ag, Pt and Ag core-Pt shell-like bimetallic (AgPt) nanoparticles, onto screen-printed carbon electrodes (ML@SPCEs, M = Ag, Pt or AgPt, L = metal nanoparticles from leaching solutions). ML@SPCEs were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The results were compared to those obtained when metal nanoparticles were synthesised using standard solutions of metal salts (MS@…
'Circolarità virtuosa' e 'virtù crudele': per una pragmatica relazionale nel De beneficiis di Seneca.
2012
Le testimonianze letterarie del passato consegnano alla società di oggi categorie socio-antropologiche e dinamiche relazionali nelle quali è possibile individuare quella che Assmann chiama “struttura connettiva” tra antichità e modernità. Un esempio paradigmatico è costituito dalla prassi dello scambio dei benefici nel de beneficiis di Seneca.