1,359,219 research outputs found
D’Alessandro (Coleoptera: Chrysomelidae: Alticinae): new data and description of a new species from Limpopo (Republic of South Africa)
No full text"A second fl ea-beetle species attributable to the South-African genus Afroaltica Biondi &. D’Alessandro 2007, is here described: A. parvula n.sp. External habitus with scanning electronic. micrographs and line drawings of some diagnostic morphological characteristics are reported. New. localities for A. subaptera Biondi & D’Alessandro 2007, are also provided. Because of these new. records, both new diagnostic characters and an update of the distribution of the genus Afroaltica are. also supplied.
Arsipoda reidi, a new replacement name for Arsipoda montana D’Alessandro, Samuelson & Biondi (Coleoptera: Chrysomelidae)
Get PDFAppendice 2. Nuovo Mercato Testaccio (Roma) e fornaci di Marina di Città Sant’Angelo (PE). Anfore adriatiche. Petrografia.
No full textSono stati comunque selezionati per l’analisi in sezione sottile al microscopio polarizzatore 32 campioni di anfore, principalmente del tipo Dressel 6A, rinvenute al Nuovo Mercato Testaccio, in seguito all’osservazione preliminare dell’intero contesto tramite lentino 10X e microscopio stereoscopico. I campioni, scelti in stretta collaborazione con Lucilla D’Alessandro, sono per la maggior parte rappresentativi di insiemi più numerosi con simili caratteristiche macroscopiche di impasto e/o tipologiche ed epigrafiche, ma in alcuni casi appartengono anche a singole anfore problematiche e/o con caratteristiche tipologiche o di impasto peculiari. Sono stati inoltre presi in esame, per uno studio comparativo, 11 campioni ceramici di varie categorie provenienti dalla fornace di Marina di Città Sant’Angelo (PE), prelevati da Lucilla D’Alessandro e forniti da Andrea Staffa, per verificare la validità dei confronti suggeriti dallo studio epigrafico e delle caratteristiche tipologiche di una parte delle anfore adriatiche del Nuovo Mercato Testaccio
Introduction of the carbon tax in Italy: Is there room for a quadruple-dividend effect?
Get PDFThis study seeks to examine the environmental and societal impacts of a carbon tax in Italy, where the policy has yet to be implemented but has been the subject of much debate. We use numerical simulations based on the EUROGREEN macro-system dynamic model (D’Alessandro et al., 2020) to evaluate the potential benefits and drawbacks of this policy from 2010 to 2050.
We employ a sequential scenario approach, starting with a baseline that incorporates Italy’s Integrated National Energy and Climate Plan (PNIEC), followed by the introduction of a gradually increasing carbon tax.
Additionally, we test two hypotheses regarding the possible adaptive behaviors of consumers and producers in response to the policy. Our analysis evaluates the long-term impacts of the carbon tax on GDP, unemployment, public debt, carbon emissions, and income inequality, in pursuit of a "quadruple-dividend" effect.
Our findings suggest that the carbon tax: (i) has a limited impact on reducing carbon emissions, with a difference of only 2% compared to the PNIEC by 2050, (ii) has the potential to mitigate regressive effects through the redistribution of its revenue to low-income households, resulting in an improvement of approximately 2 Gini-points compared to the PNIEC, and (iii) can achieve a quadruple-dividend effect only if consumers and industries adapt their behavior to the policy.
Our research argues that Italy could reap the benefits of a carbon tax, with the revenue being redistributed to low-income households, leading to a more equitable and sustainable energy transition. This can only be achieved by combining top-down policies with bottom-up initiatives and public interventions, making environmental taxation more acceptable to the general public
Control of a two-level quantum system in a coherent feedback scheme
No full textWe consider a scheme for the control of a spin 1/2, S, where an auxiliary spin 1/2, A, plays the role of the controller, and an Ising interaction is assumed between the spins. We demonstrate that even if there is no complete controllability on the system S + A we can have full control on the system S if and only if the initial state of A is pure. This provides the simplest example where the system
S is indirectly controllable while the whole system S + A is not completely controllable. We also give an explicit algorithm for the indirect control of S
Conceptualización de estrategias de monetización datos : cómo crear valor en diferentes mercados verticales a partir de la recopilación y explotación de los diferentes tipos de datos de los consumidores.
Get PDFFil: D’Alessandro, Alberto. Universidad de San Andrés. Escuela de Administración y Negocios; Argentina
Rituals/Materials
Get PDFThe exhibition RITUALS / MATERIALS provides
an opportunity to reflect on religious coexistence
in the modern city through a site-specific installation
created by the Berlin-based architecture studio
KUEHN MALVEZZI and photographer ARMIN LINKE,
in collaboration with Claudia Professione and
Greta Valentinotti. It is curated by Eleonora D’Alessandro
together with Giulia Massenz and
Daniele Campobenedetto.
The installation consists of a dense series of images
and videos that depict the House of One, a multi-faith
building designed by KUEHN MALVEZZI currently under
construction in Berlin. Arranged in a non-hierarchical and
non-chronological manner, the images form a narrative
that visually conveys the development and design
process of the building. Furthermore, it encourages a
reconsideration of the methods of dialogue, integration,
and coexistence among the diverse communities
residing in the city.
RITUALS / MATERIALS images describe a layered and
intricate operational map, providing visitors with a sense
of the complex journey involved in this extraordinary
project, conveyed through various authorial voices.
These images delve into Berlin’s role as a modern urban
paradigm through abstraction, revealing how migration
and globalization shape its evolving landscape.
RITUALS / MATERIALS, made possible thanks to
the support of Fondazione CRT, the Department of
Architecture and Design of Politecnico di Torino and
the Interuniversity Department of Regional and Urban
Studies and Planning of Politecnico di Torino and
Università di Torino, and under the patronage of Comune
di Torino, Comitato Interfedi and Centro Interculturale,
represents the second stage of a journey that began
in Rome in June 2023, at the Ex Mattaroio of Testaccio,
Department of Architecture (Roma Tre). The exhibition is
accompanied by a rich program of activities
Microbial methane oxidation leading to extreme isotopic fractionation in thermal springs of central Greece
Get PDFThe Greek territory belongs to the geodynamically active Alpine-Himalayan orogenic belt. As such, it shows intense
seismic activity, active volcanic systems and areas of enhanced geothermal fluxes. One of these areas is the Sperchios
basin and the northern part of Evia island in central Greece, which present widespread thermal manifestations
(D’Alessandro et al., 2014). Five of them with temperatures from 33 to 80°C present bubbling gases whose dominating
species are either CO2 or N2. All gases contain from 27 to 4000 ppm of CH4. The isotopic composition of CH4 in these
gases covers a wide range with δ13C values ranging from -21.7 to +16.9 ‰ and δ2H values ranging from -124 to
+301 ‰.
The hottest manifestation displays the lowest isotopic values within the typical range of volcanic and geothermal
systems. All the remaining samples fit a methane oxidation trend reaching very positive values. If we consider the
lowest values as the deep hydrothermal marker the obtained ΔH/ΔC values range between 5 and 13 which are close to
those typical of microbially driven oxidation (Kinnaman et al., 2007).
Although the outlet temperature of the hottest manifestations is at the upper limit for methanotrophic microrganisms
(Sharp et al., 2014), we can hypothesize that environmental conditions are not favorable for their survival at this site
while they can thrive in the other, strongly consuming methane and producing very positive isotopic values.
D’Alessandro, W., Brusca, L., Kyriakopoulos, K., Bellomo, S., Calabrese S. (2014): A geochemical traverse along the "Sperchios
Basin-Evoikos Gulf" Graben (Central Greece): origin and evolution of the emitted fluids. Mar. Petrol. Geol., 55, 295-308.
Kinnaman, F.S., Valentine, D.L., Tyler, P.A. (2007): Carbon and hydrogen isotope fractionation associated with the aerobic
microbial oxidation of methane, ethane, propane and butane. Geochim. Cosmochim. Acta, 71, 271-283.
Sharp, C.E., Smirnova, A.V., Graham, J.M., Stott, M.B., Khadka, R., Moore, T.R., Grasby, S.E., Strack, M., Dunfield, P.F. (2014):
Distribution and diversity of Verrucomicrobia methanotrophs in geothermal and acidic environments. Environ. Microbiol., 16,
1867-1878
Architettura come opera d’arte. Arte e architettura nell’opera di Oswald Mathias Ungers
No full textLO SCRITTO SI OCCUPA DELL'INDIVIDUAZIONE DI UN PUNTO DI CONTATTO TRA ARTE E ARCHITETTURA NELL'OPERA DI OSWALD MATHIAS UNGERS, PONENDO L'ATTENZIONE NELLO SPECIFICO DELL'AZIONE PROGETTUALE IN COLLABORAZIONE CON ARTISTI
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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