3,187 research outputs found
Media Freedom and the “Transition” Era in Mozambique: 1990-2000
Get PDFIn this article the author aims at analysing the evolution of Mozambican journalism, since 1990 (when the new Constitution was approved) until today. The key hypothesis is that Mozambican journalism has been strictly related to Mozambican democracy, and that in 1999-2000 there has been important facts which have determined the option for different avenues from the side of private and public press. After giving a short framework on the political situation in Mozambique, the article focuses its attention on the legal basis of Mozambican media freedom, stressing the limitations that, till today, it continues to register
"Ut Virtus pictura et poesis". Forme della virtù tra Arcadia e Accademia di San Luca (1702-1716)
No full textL’intervento ricostruisce i contatti e le reciproche influenze tra l’Arcadia e l’Accademia romana di San Luca, dal 1702 al
1716, indagando il legame tra la pittura e la poesia nelle forme di espressione della virtù. L’occasione è offerta dai testi poetici
arcadici recitati nelle accademie Clementine, che vedono promotrice e protagonista l’Accademia di San Luca sotto il patrocinio
di Clemente XI. Le sillogi poetiche, che raccolgono i versi di G. Crescimbeni, P. J. Martello, S. Maffei, G. B. Zappi, e
che esaltano la «virtù» e il «merito», permettono di esaminare parte della storia del rapporto tra le due accademie e tra gli
Arcadi e i Quirini a seguito dello scisma del 1711. L’intento è quello di mostrare il modo in cui viene data forma alla virtù
all’interno del quadro variegato e complesso delle reti accademiche e dei sodalizi primo settecenteschi, anche in forza dello
scenario storico-politico e dell’ attenzione attorno alla tragedia maturata negli stessi circuiti a inizio secolo
Apresentação
Get PDFO dossiê ora apresentado, intitulado “Filosofias do Sul: entre a África e a América Latina”, tem uma origem certa: Maputo, dezembro de 2019. Um dos editores do dossiê, Luca Bussotti, foi visitar o amigo e colega Severino Ngoenha, Reitor da Universidade Técnica de Moçambique. Severino entregou dois livros a Luca: o Manifesto por uma terceira via, escrito com outro filósofo moçambicano, José Castiano, e Lomuku, o primeiro estudo por ele publicado sobre a sociedade civil de Moçambique, de que os dois haviam falado, ao longo da sua redação. A obra fora lançada naquele mesmo mês, que antecedeu a eclosão da pandemia de COVID-19, no anfiteatro da Universidade Técnica de Moçambique
Media freedom and the “transition” era in Mozambique: 1990-2000
Get PDFIn this article the author aims at analysing the evolution of Mozambican journalism,
since 1990 (when the new Constitution was approved) until today. The key hypothesis
is that Mozambican journalism has been strictly related to Mozambican democracy, and
that in 1999-2000 there has been important facts which have determined the option for
different avenues from the side of private and public press. After giving a short framework
on the political situation in Mozambique, the article focuses its attention on the legal basis
of Mozambican media freedom, stressing the limitations that, till today, it continues to
register.info:eu-repo/semantics/publishedVersio
An assessment of the impact of possible CAP reform scenarios on Romanian agriculture
Get PDFUsing a simplified model, with key-variable the prices of two different possible scenarios of CAP reform after 2013 (moderate and radical), this paper present a comparison between the price effects of implementation of each reform scenario at 2015 horizon on Romanian agriculture. This short analysis shows that, under the presented hypotheses, the net welfare effect, due to the price changes, for the selected products, is positive in both reform scenarios, yet greater in the case of the radical reform. Integrated in the large context of Romanian development, it seems that the influence of CAP reform upon agriculture and rural areas will be most likely a gradual one: an interpenetration between the two scenarios is foreseeable, starting with the moderate reform that will dominate the period around 2013, the reform measures acquiring a more radical character afterwards.CAP reform, Romania, welfare effects, Agricultural and Food Policy,
History of an Anomalous Cooperation
No full textCommons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In accordance of the Creative Commons Attribution License all Copyrights © 2013 are reserved for SCIRP and the owner of the intellectual property Luca Bussotti, Antonella De Muti. All Copyright © 2013 are guarded by law and by SCIRP as a guardian. In this article the authors aim at showing how an “anomalous ” international and very intense cooperation between Italy and Mozambique was born. In fact, Italy has not a strong colonial tradition, especially in Mozambique, so it seems interesting to try to understand the reason why this former Portuguese colony has become the Italian most important partner in its cooperation activity. This analysis is based on the main hypothesis related to the birth of international bilateral cooperation: they have been seriously considered in order to explain the origin of this strange relationship, but they cannot completely clarify this particular case. According to the Italian social and political recent history, the privileged relationship with Mozambique is due more to a “bottom up ” process than to geo-strategic or economic reasons. The fact that Mozambique had belonged to a weak Western power such as Portugal certainly gave Italy the opportunity to penetrate more easily in this country than in the ones which had been under the strong dominion of France or England. One of the most important results of this “anomalous ” cooperation has t
Rich, Sturmian, and trapezoidal words
Get PDFIn this paper we explore various interconnections between rich words, Sturmian words, and trapezoidal words. Rich words, first introduced by the second and third authors together with J. Justin and S. Widmer, constitute a new class of finite and infinite words characterized by having the maximal number of palindromic factors. Every finite Sturmian word is rich, but not conversely. Trapezoidal words were first introduced by the first author in studying the behavior of the subword complexity of finite Sturmian words. Unfortunately this property does not characterize finite Sturmian words. In this note we show that the only trapezoidal palindromes are Sturmian. More generally we show that Sturmian palindromes can be characterized either in terms of their subword complexity (the trapezoidal property) or in terms of their palindromic complexity. We also obtain a similar characterization of rich palindromes in terms of a relation between palindromic complexity and subword complexity
Characterization Results for the Poset Based Representation of Topological Relations - I: Introduction and Models
No full text@article{DBLP:journals/informaticaSI/ForlizziN99,
author = {Luca Forlizzi and
Enrico Nardelli},
title = {Characterization Results for the Poset Based Representation
of Topological Relations - I: Introduction and Models.},
journal = {Informatica (Slovenia)},
volume = {23},
number = {2},
year = {1999},
bibsource = {DBLP, http://dblp.uni-trier.de}
Characterization Results for the Poset Based Representation of Topological Relations - II: Intersection and Union
No full text@article{DBLP:journals/informaticaSI/ForlizziN00,
author = {Luca Forlizzi and
Enrico Nardelli},
title = {Characterization Results for the Poset Based Representation
of Topological Relations - II: Intersection and Union.},
journal = {Informatica (Slovenia)},
volume = {24},
number = {1},
year = {2000},
bibsource = {DBLP, http://dblp.uni-trier.de}
System-on-chip Computing and Interconnection Architectures for Telecommunications and Signal Processing
No full textThis dissertation proposes novel architectures and design techniques targeting SoC building blocks for telecommunications and signal processing applications.
Hardware implementation of Low-Density Parity-Check decoders is approached at both the algorithmic and the architecture level. Low-Density Parity-Check codes are a promising coding scheme for future communication standards due to their outstanding error correction performance.
This work proposes a methodology for analyzing effects of finite precision arithmetic on error correction performance and hardware complexity. The methodology is throughout employed for co-designing the decoder. First, a low-complexity check node based on the P-output decoding principle is designed and characterized on a CMOS standard-cells library. Results demonstrate implementation loss below 0.2 dB down to BER of 10^{-8} and a saving in complexity up to 59% with respect to other works in recent literature. High-throughput and low-latency issues are addressed with modified single-phase decoding schedules. A new "memory-aware" schedule is proposed requiring down to 20% of memory with respect to the traditional two-phase flooding decoding. Additionally, throughput is doubled and logic complexity reduced of 12%. These advantages are traded-off with error correction performance, thus making the solution attractive only for long codes, as those adopted in the DVB-S2 standard. The "layered decoding" principle is extended to those codes not specifically conceived for this technique. Proposed architectures exhibit complexity savings in the order of 40% for both area and power consumption figures, while implementation loss is smaller than 0.05 dB.
Most modern communication standards employ Orthogonal Frequency Division Multiplexing as part of their physical layer. The core of OFDM is the Fast Fourier Transform and its inverse in charge of symbols (de)modulation. Requirements on throughput and energy efficiency call for FFT hardware implementation, while ubiquity of FFT suggests the design of parametric, re-configurable and re-usable IP hardware macrocells. In this context, this thesis describes an FFT/IFFT core compiler particularly suited for implementation of OFDM communication systems. The tool employs an accuracy-driven configuration engine which automatically profiles the internal arithmetic and generates a core with minimum operands bit-width and thus minimum circuit complexity. The engine performs a closed-loop optimization over three different internal arithmetic models (fixed-point, block floating-point and convergent block floating-point) using the numerical accuracy budget given by the user as a reference point. The flexibility and re-usability of the proposed macrocell are illustrated through several case studies which encompass all current state-of-the-art OFDM communications standards (WLAN, WMAN, xDSL, DVB-T/H, DAB and UWB). Implementations results are presented for two deep sub-micron standard-cells libraries (65 and 90 nm) and commercially available FPGA devices. Compared with other FFT core compilers, the proposed environment produces macrocells with lower circuit complexity and same system level performance (throughput, transform size and numerical accuracy).
The final part of this dissertation focuses on the Network-on-Chip design paradigm whose goal is building scalable communication infrastructures connecting hundreds of core. A low-complexity link architecture for mesochronous on-chip communication is discussed. The link enables skew constraint looseness in the clock tree synthesis, frequency speed-up, power consumption reduction and faster back-end turnarounds. The proposed architecture reaches a maximum clock frequency of 1 GHz on 65 nm low-leakage CMOS standard-cells library. In a complex test case with a full-blown NoC infrastructure, the link overhead is only 3% of chip area and 0.5% of leakage power consumption.
Finally, a new methodology, named metacoding, is proposed. Metacoding generates correct-by-construction technology independent RTL codebases for NoC building blocks. The RTL coding phase is abstracted and modeled with an Object Oriented framework, integrated within a commercial tool for IP packaging (Synopsys CoreTools suite). Compared with traditional coding styles based on pre-processor directives, metacoding produces 65% smaller codebases and reduces the configurations to verify up to three orders of magnitude
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