Search results for "cART"
showing 10 items of 2010 documents
Introduction
2019
The introduction gives a brief overview of some important developments in recent scholarship on René Descartes and Baruch Spinoza. It is argued that there has been a shift of focus, away from Descartes-the-dualist towards an interest in Descartes’ ethics and his conception of the human being as a union of mind and body. This turn has also given rise to new perspectives on the relations between Descartes and Spinoza. After having presented the area of research covered by the volume, the introduction offers short presentations of the individual chapters. These are divided into three parts: the first part focusing on different features of Cartesian persons; the second discussing different aspe…
Un delicato equilibrio tra macchine, algebra e geometria: Descartes e una possibile estensione differenziale
Fiducia verso persone e istituzioni: evidenze da una survey sul capitale civico degli studenti
2017
Trust in people and institutions: evidence from a survey on the civic capital of students Objectives: According to economic theory, civic capital is the result of a process of social investment through vertical transmission channels, internal to the family, and horizontal socialization, among peers. The reference context, such as the neighbourhood, plays an important role influencing both of these channels. This paper presents some initial evidence obtained from a statistical survey conducted on students of secondary high schools of the city of Palermo with the aim of measuring the basic dimensions that contribute to the formation of the civic and human capital. In particular, the focus is …
Development and characterization of a thermal inkjet-based aerosol generator for micro-volume sample introduction in analytical atomic spectrometry
2011
A novel system for the introduction of liquid samples into analytical plasmas for atomic spectrometric analysis is presented in this manuscript for the first time. The proposed “drop-on-demand” (DOD) aerosol generator is based on the use of a modified thermal inkjet cartridge. This system employs a lab-built microcontroller, which allows accessing all parameters important for driving the dosing cartridge for the generation of pL-droplets from sample volumes in the μL range. The droplet generation frequency, thus the resulting liquid flow rate, is variable over a wide range from the generation of isolated droplets up to a theoretical flow rate of approximately 2 mL min−1, with parallel opera…
Study of passive sampling of polycyclic aromatic hydrocarbons in gas phase using Amberlite XAD resins as filling materials of semipermeable membranes
2013
Abstract In this work, a study was performed to evaluate the use of Amberlite XAD resins (XAD-2, XAD-4 and XAD-16), for the first time, as filling materials for low-density polyethylene membranes, which will be inserted as passive samplers for polycyclic aromatic hydrocarbons (PAHs) in gas phase. The use of samplers deployed for 48 h evidenced a relative capability to retain the compounds under study. A detailed study was performed to evaluate the recovery of analytes from the sampler through microwave-assisted extraction by using acetonitrile. A clean-up step using alumina-C18 cartridges was necessary before determination of the PAHs by high performance liquid chromatography with fluoresce…
Flow injection Fourier transform infrared determination of caffeine in coffee
1999
Abstract A fully automatized procedure has been developed for the Fourier transform infrared (FT-IR) spectroscopic determination of caffeine in coffee samples. The method involves the on-line extraction of caffeine with CHCl3. Samples, weighed inside empty PTFE cartridges of 0.5 cm internal diameter (i.d.) and 1.5 ml volume, were humidified with four drops of 0.25 M NH3. The cartridge was installed in a flow manifold, in which samples were extracted in a closed-flow system with 1 ml CHCl3 during 6 min. Four hundred microliters of the extract were introduced in a microflow cell and absorbance measured as a function of time at 1659 cm−1, with a baseline established between 1900 and 830 cm−1, …
Calibration of LA-ICP-MS via standard addition using dried picoliter droplets
2020
A novel microanalytical calibration approach for quantitative spatially resolved analysis of thin layered materials with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is presented. This method relies on standard addition via the generation of dried pL-droplet residues. Therefore, a drop on demand dosing device based on a modified commercial ink cartridge and a dosing interface, both accessible via a self-constructed microcontroller, were developed. This dosing device enables the precise deposition of pL-droplets onto solid samples for the generation of residues with dimensions in the low μm-range. The LA-ICP-MS analysis of such residues allows calibration over at l…
L'insegnamento della Geomatica al tempo della Gelmini
2012
L’articolo riporta e analizza i risultati del censimento dell’offerta formativa nel settore della Geomatica promosso nel 2011 dall’AUTeC. I dati vengono confrontati con quelli relativi al censimento del 2009; il confronto conferma la tendenza alla riduzione dell’offerta, in relazione soprattutto all’applicazione del nuovo ordinamento didattico e alla contrazione del numero dei docenti negli ultimi anni. Vengono presentate in conclusione alcune proposte per trovare spazi adeguati alla attività formativa del nostro settore.
Impacto de las aulas de creación en el nivel medio superior: el caso ITESO
2016
Resumen: El artículo plantea un análisis etnográfico del impacto de aulas y talleres de creación artística en Educación Media y Superior. Para ello se analiza en profundidad el caso de la red de aulas y talleres artísticos dePromoción Cultural del ITESO, a través de la revisión de un proyecto de investigación que recuperó la experiencia vivida, sirviendo de retroalimentación para la propia institución. En el desarrollo de esta investigación se apunta a una serie de criterios, ya detectados en distintas líneas de investigación, que pudieran favorecer un “enfoque proactivo de la creatividad”, confirmar la figura del artista-pedagogo, poco conocida en el contexto universitario, y un tipo de di…
La inefabilidad en el lenguaje natural
2016
English Title: "The Ineffability of Natural Language" Resumen: Los casos de variacion en las condiciones de satisfaccion de enunciados sin deicticos, junto con la asuncion de un principio de proposicionalidad, han llevado a filosofos como Carston a defender la idea de que nuestros pensamientos son inefables, esto es, no codificables en lenguaje natural. En contra de este enfoque argumentare (i) que esta teoria no se aplica al pensamiento consciente, (ii) que, contra el argumento de la desambiguacion, el principio de proposicionalidad no es obligatorio y (iii) que podemos explicar tanto los casos exitosos de comunicacion como aquellos en los que es necesario que el hablante precise que queri…