30,606 research outputs found
Transnational Social Protection and the Role of Diplomatic Networks of Migrant-Sending Countries
No full textIn the contemporary world, characterized by national Welfare State systems in crisis or subjected to retrenchment, while at the same more than 270 million people are living more than one year in Countries of which they are not citizens, it becomes very important to understand what kinds of social protection, both formal and informal, transnational migrants and their families can have access to, how such protection develops across borders and how such access may vary.
This article is set to describe and analyse the main elements of what is defined in international literature as Transnational Social Protection (TSP) and then to discuss what kind of challenges it poses to Nation-States, migrant-sending as well as migrant-receiving. TSP, as we will see, is a combination of formal and informal dimensions (Levitt et Al. 2017), even if often assembled together (Faist and Bilecen 2015). Nonetheless, our focus is on the former rather than on the latter, mainly on the activity carried out by the diplomatic network of the migrants’ origin Countries, representing formal elements of the “resource environment” on which these individuals rely to respond to their own social needs and those of their families.
After a general description of the concept of TSP, we are set focus on the instruments and procedures adopted by a Country in order to provide its emigrants with access to some transnational forms of healthcare services, relying mainly on its local consulates. As a relevant example, particular attention will be paid to the case of the activity of Mexico on the territory of the USA, stressing the importance of the whole diplomatic network as a crucial part of their migrants’ resource environment
Microwave medical imaging: potentialities and limitations of a stochastic optimization technique
No full textMicrowave medical imaging: Potentialities and limitations of a stochastic optimization technique
Author(s): Caorsi, S (Caorsi, S); Massa, A (Massa, A); Pastorino, M (Pastorino, M); Rosani, A (Rosani, A)
Source: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES Volume: 52 Issue: 8 Pages: 1909-1916 DOI: 10.1109/tmtt.2004.832016 Part: Part 2 Published: AUG 2004
Times Cited: 14 (from Web of Science)
Cited References: 29 [ view related records ] Citation Map
Abstract: An approach based on a stochastic optimization technique is proposed for medical microwave imaging. The approach is based on the integral equations of the electromagnetic inverse scattering. After discretization of the continuous model, the problem solution is recast as a global optimization problem. A functional is constructed on the basis of a Markov random field model and minimized by a genetic algorithm. In order to reduce the computational load, a model of the cross section of the biological body is considered. In this way, the investigation area is limited by separating the scattering contribution of a fixed region under test from those of other parts of the model. Some preliminary results concerning a two-dimensional model of a human thorax are reported. Such a biological structure is inspected by the proposed tomographic approach in order to detect and localize the presence of an "object" modeling a tumor.
Accession Number: WOS:000223051400007
Document Type: Article
Language: English
Author Keywords: genetic algorithms (GAs); inverse scattering; medical imaging; microwave imaging; optimization problems
KeyWords Plus: BREAST-CANCER DETECTION; GENETIC ALGORITHMS; ELECTROMAGNETICS; TISSUES; MODEL
Reprint Address: Rosani, A (reprint author), Univ Pavia, Dept Elect, I-27100 Pavia, Italy
Addresses:
1. Univ Pavia, Dept Elect, I-27100 Pavia, Italy
2. Univ Trent, Dept Informat & Commun Technol, I-38050 Trent, Italy
3. Univ Genoa, Dept Biophys & Elect Engn, I-16145 Genoa, Italy
E-mail Address: [email protected], [email protected], [email protected]
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855 USA
Web of Science Category: Engineering, Electrical & Electronic
Subject Category: Engineering
IDS Number: 843BW
ISSN: 0018-948
Optimization of difference patterns for monopulse antennas by a hybrid real/integer-coded differential evolution method
No full textOptimization of the difference patterns for monopulse antennas by a hybrid real/integer-coded differential evolution method
Author(s): Caorsi, S (Caorsi, S); Massa, A (Massa, A); Pastorino, M (Pastorino, M); Randazzo, A (Randazzo, A)
Source: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION Volume: 53 Issue: 1 Pages: 372-376 DOI: 10.1109/TAP.2004.838788 Part: Part 2 Published: JAN 2005
Times Cited: 46 (from Web of Science)
Cited References: 9 [ view related records ] Citation Map
Abstract: The optimization of difference patterns of monopulse antennas is considered. The synthesis problem is recast as an optimization problem by defining a suitable cost function. In particular, in this paper, the cost function is based on constraints on the side-lobe levels. A subarray configuration is adopted and the excitations of the difference pattern are approximately determined. The optimization problem isefficiently solved by a differential evolution algorithm, which is able to contemporarily handle real and integer unknowns. Numerical results are reported concerning classical array configurations previously considered in the literature.
Accession Number: WOS:000226261600014
Document Type: Article
Language: English
Author Keywords: array antennas; evolutionary algorithm; monopulse antennas; sum and difference patterns
KeyWords Plus: SUM; ARRAYS
Reprint Address: Caorsi, S (reprint author), Univ Pavia, Dept Elect, Via Palestro 3, I-27100 Pavia, Italy
Addresses:
1. Univ Pavia, Dept Elect, I-27100 Pavia, Italy
E-mail Address: [email protected]
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Web of Science Category: Engineering, Electrical & Electronic; Telecommunications
Subject Category: Engineering; Telecommunications
IDS Number: 886VT
ISSN: 0018-926
Discrezionalità e discrezione del giudice. Verso uno studio del minimalismo nella giustizia costituzionale
No full textSeguire il lavoro di Roberto Bin mi ha sempre aiutato ad aprire la mente: a idee e autori (per me) nuovi; a problemi talora tanto avvolgenti, da essere difficili da afferrare, senza un aiuto teorico iniziale; a soluzioni, o anche solo strumenti per ragionare, sempre costruttivi, pure quando esposti in modo icastico, spiazzante, provocatorio. Tra le idee con le quali, così, sono venuto a contatto, ce ne sono un paio tipiche di un certo indirizzo statunitense, portato avanti in anni recenti soprattutto da Cass R. Sunstein. Si tratta degli accordi non completamente teorizzati (incompletely theorized agreements) e del minimalismo come stile e atteggiamento opportuno per il giudice costituzionale. Il primo concetto è una premessa del secondo. Insieme, suggeriscono una concezione della Costituzione e del ruolo che spetta al giudice nell’applicazione di essa. Ruolo che dovrebbe essere contraddistinto da prudenza e modestia («discrezione», nel senso in cui la parola è usata qui nel titolo) tanto maggiori, quanto più ampia è la discrezionalità del giudice medesimo («discrezione», nel senso in cui la parola è usata nel titolo di un volume del Nostro). Mentre risalivo alle fonti di questi concetti (§ 3), ho continuato a studiarli attraverso le pagine di Roberto (§ 2). Sono arrivato a chiedermi se si possa proseguire verso ricerche più strutturate su questi temi (§ 4)
New or interesting records of Palearctic Orthoptera (Insecta).
No full textThe author reports some interesting Orthoptera from Palearctic region, namely: Pezodrymadusa subinermis Karabag, 1961, Phytodrymadusa viridipennis (Shchekanovtsev, 1915), Paranocarodes sulcatus (I. Bolivar, 1912) from Armenia, Scintharista notabilis notabilis (Walker, 1870) from Azores, Brachycrotaphus tryxalicerus (Fischer, 1853) from Egypt, and Euchorthippus declivus (Brisout, 1848) from Sardinia (Italy). Additionally, he establishes the synonymies Eupholidoptera peneri Kaltenbach, 1969 = Uvarovistia rammei Katbeh Bader et Massa, 2001 from Jordan; Stenobothrus ursulae Nadig, 1986 = S. nadigi La Greca, 1986 from Piedmont and Aosta Valley (Italy); Pterolepis pedata A. Costa, 1882 = Rhacocleis berberica dubronyi Baccetti, Massa et Canestrelli, 1995 from Lampedusa Is. (Sicily). He also describes the unknown male of Ocnerosthenus verrucosus (Brunner von Wattenwyl, 1882) and the unknown female of Orchamus kaltenbachi Massa, 2009. Finally, he records a female of Anadrymadusa ornatipennis (Ramme, 1926) from Patmos Is. (Greece), and a female of Eupholidoptera uvarovi (Karabağ, 1952) from Kassos Is. (Greece)
La leale collaborazione fra istituzioni dell'Unione europea e istituzioni regionali e locali. Introduzione
No full textSono introdotti i contributi al convegno, i cui atti sono raccolti nel volume, presentati e discussi nella sessione dedicata alla leale collaborazione fra istituzioni dell’Unione Europea e istituzioni regionali e locali. I lavori sono ricondotti a uno schema che li collega uno con l’altro e con l’architettura generale del convegno (il secondo organizzato dalla rivista Diritti regionali). Sono infine anticipati alcuni interrogativi che la lettura dei contributi ha suscitato
FIGURE 7. Mimoscudderia spinicercata n in New taxa of Orthoptera (Insecta Tettigoniidae Phaneropterinae) from Madagascar
No full textFIGURE 7. Mimoscudderia spinicercata n. sp., male: habitus (A), lateral view of head and pronotum (B), face (C), stridulatory file (D), lateral (E) and dorsal view (F) of last abdominal segments and cerci, subgenital plate (G).Published as part of Massa, Bruno, 2017, New taxa of Orthoptera (Insecta Tettigoniidae Phaneropterinae) from Madagascar, pp. 299-312 in Zootaxa 4242 (2) on page 311, DOI: 10.11646/zootaxa.4242.2.5, http://zenodo.org/record/37640
Methodological approach for recognition of species from 0 kHz – 12 kHz nocturnal PAM recordings: the case of Orthoptera
No full textLa scoperta fortuita di Acheta pantescus Massa, Cusimano, Fontana, Brizio, 2022, nata dall’osservazione di un canto di grillo non riconosciuto durante la revisione di registrazioni di monitoraggio acustico passivo (PAM), ha rivelato il potenziale dei registratori non supervisionati come strumenti per la valutazione della diversità degli ortotteri. Questo studio, basato su una campagna PAM notturna di un mese in due località pugliesi, copre le problematiche del riconoscimento delle specie di ortotteri mediante mezzi bioacustici e delinea un flusso di lavoro di analisi e diagnosi per paesaggi sonori contestati, con particolare riferimento a registrazioni di media qualità (frequenza di campionamento di 24 kHz, banda 0 kHz - 12 kHz), scelte come il miglior compromesso tra qualità e capacità di archiviazione. Al prezzo di un significativo impiego di tempo, il metodo si è dimostrato adatto per una valutazione preliminare della diversità degli ortotteri a canto notturno. I risultati includono diverse lezioni apprese, un elenco delle specie osservate e alcune nuove osservazioniThe fortuitous discovery of Acheta pantescus Massa, Cusimano, Fontana, Brizio, 2022, born from the observation of an unknown cricket song during the review of passive acoustic monitoring (PAM) recordings, disclosed the potential of unsupervised recorders as tools for the assessment of orthopteran diversity. This case study, based on a one-month, nightly PAM campaign in two Apulian locations, covers the issues of orthopteran species recognition by bioacoustical means and outlines an analysis and diagnosis workflow for contested soundscapes, with special reference to the medium-quality record settings (24 kHz sampling frequency, 0 kHz - 12 kHz band), chosen as the best compromise between quality and storage capacity. At the price of substantial labour, the method proved suitable for a preliminary assessment of the diversity of the night-singing orthoptera. Results include several lessons learned, a list species observed and some novel observation
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