Search results for "Scientific"

Come un tenero virgulto: termini e ideologie della crescita nel pensiero greco pre-aristotelico

2020

Dopo un inquadramento terminologico atto a presentare le più comuni radici che esprimono in greco antico i concetti di crescita e di sviluppo del vivente, l’attenzione è rivolta alle modalità con cui in testi di varia natura e datazione (da Omero sino al Corpus ippocratico) si descrive la crescita dell’essere umano a partire dal costante confronto con il mondo vegetale, in modo che dal configurarsi delle teorie possano risaltare le più o meno implicite mentalità. Attraverso il massiccio ricorso al ragionamento analogico, le fonti considerate permettono di farsi un’idea non solo del processo di crescita in sé, ma anche del ruolo assegnato nella cultura e nel pensiero della Grecia antica alla…

El proyecto mapa escolar de Valencia: Análisis de la zonificación educativa de la ciudad de Valencia

2018

The research project Mapa Escolar de Valencia (School Map of Valencia) was born out of an agreement between the City Council and the University of Valencia in order to carry out an investigation of the compulsory education system of the city and propose, if necessary, modifications to the current school zoning. The project is structured in several research areas. An analysis of the specialized scientific literature and public policies concerning education and schooling has been done, and it is currently analysing the evolution of quantitative and qualitative data on compulsory schooling in Valencia, its school zoning, the representations of education and the school climate in the city schoo…

Dificultades de aprendizaje y cambio conceptual, procedimental y axiológico (II): nuevas perspectivas

2009

En este trabajo veremos como las ciencias cognitivas, las neurociencias, los estudios CTS, la educacion cientifica no formal, etc., ofrecen nuevas posibilidades de avance en el campo del aprendizaje de conceptos, procedimientos y actitudes, y tambien veremos otras perspectivas que amplian el dominio usual de la didactica de las ciencias. Por ultimo, se muestra como los modelos de ensenanza deben tener en cuenta estas dimensiones del aprendizaje de las ciencias, para contribuir a la solucion de los nuevos problemas que se plantean sobre la educacion cientifica.Palabras clave: ciencias cognitivas; neurociencias; estudios CTSA; ensenanza, aprendizaje.Learning difficulties and conceptual, metho…

Optimization of the sorption process of copper cations from aqueous solution by pine bark (Pinus sylvestris)

2020

This study examined the effect of the chemical modification of pine bark (Pinus sylvestris) on the sorption efficiency of copper cations. The results were interpreted using pseudo-first order and pseudo-second order reaction models as well as Langmuir and Freundlich isothermal models. The sorption experiments were carried out using the batch technique. The study indicated the effect of the competitive sorption of copper cations and hydrogen cations as well as the adverse effect on the sorption efficiency of copper hydroxides formed under alkaline conditions. The need to assess the measurement uncertainty in determining the basic parameters of the sorption process was indicated. It was also …

Bacterial Viruses Subcommittee and Archaeal Viruses Subcommittee of the ICTV: Update of taxonomy changes in 2021

2021

In this article, we – the Bacterial Viruses Subcommittee and the Archaeal Viruses Subcommittee of the International Committee on Taxonomy of Viruses (ICTV) – summarise the results of our activities for the period March 2020 – March 2021. We report the division of the former Bacterial and Archaeal Viruses Subcommittee in two separate Subcommittees, welcome new members, a new Subcommittee Chair and Vice Chair, and give an overview of the new taxa that were proposed in 2020, approved by the Executive Committee and ratified by vote in 2021. In particular, a new realm, three orders, 15 families, 31 subfamilies, 734 genera and 1845 species were newly created or redefined (moved/promoted). Supplem…

The Museum of Engines and Mechanisms. More Than a Century of History of Technology

2015

The Museum of Engines and Mechanisms of the University of Palermo has preserved more than 300 pieces, which collectively narrate the evolution of science and technology in the field of fluid machines and their components and testify to the development in scientific disciplines, technologies and industrial applications over the course of more than a century. A rigorous chronological path through the various typological groups allows for a historical walk through the last 150 years, in the area of automotive, airplanes and marine engines; hydraulic machines and stationary engines; mechanical measurements and laboratory devices for scientific and educational purposes. The collection is availab…

Aree protette: scopi e risorse

2011

Commenting on Written Arguments as a Part of Argumentation Skills — comparison between students engaged in traditional vs on‐line study

1992

ABSTRACT The use of computer‐mediated communication (CMC) has increased in the area of education. This article reports a study whose aim was to improve the argumentation and scientific thinking skills of university students through argumentative on‐line studying. The research problems dealt on the one hand with learning outcomes in terms of subject content and on the other hand with argumentation skills. The results were compared between on‐line students and students who studied in a traditional way. The results indicated that the traditional group got better learning outcomes than the on‐line students who, by contrast, succeeded better in the tasks of argumentation skills. The findings sug…

Energy Barrier: Focus on the Essential: Extracting the Decisive Energy Barrier of a Complex Process (Adv. Mater. Interfaces 20/2019)

2019

Estimation of Granger causality through Artificial Neural Networks: applications to physiological systems and chaotic electronic oscillators

2021

One of the most challenging problems in the study of complex dynamical systems is to find the statistical interdependencies among the system components. Granger causality (GC) represents one of the most employed approaches, based on modeling the system dynamics with a linear vector autoregressive (VAR) model and on evaluating the information flow between two processes in terms of prediction error variances. In its most advanced setting, GC analysis is performed through a state-space (SS) representation of the VAR model that allows to compute both conditional and unconditional forms of GC by solving only one regression problem. While this problem is typically solved through Ordinary Least Sq…