New urban Soundscapes: Angklung Buskers in Yogyakarta

Caratterizzati da una costante sovrapposizione di stimoli acustici di diversa natura, i paesaggi sonori delle realtà metro- politane contemporanee sono entità composite di difficile interpretazione. Entro questi contesti, tuttavia, la produzione di musica dal vivo ha senza dubbio un ruolo cruciale nella costruzione degli spazi sonori pubblici e dell’immaginario acustico ad essi associato. Nel presente articolo sono presentati alcuni risultati di una ricerca svolta a Yogyakarta (Giava, Indonesia) su un particolare fenomeno di musica di strada, le angklung bands: gruppi di musicisti di strada che si guadagna- no da vivere esibendosi quotidianamente negli spazi più trafficati della città. Applicando il metodo etnografico dell’osservazione partecipante, è stata documentata l’attività di questi musicisti, indagandone storie di vita, prassi performative e repertori, considerando la complessità del feno- meno e il suo rapporto “osmotico” con l’ambiente urbano Yogyanese. Descrivendo questo specifico caso di studio, si cercherà di dimostrare come una pratica musicale apparentemente marginale possa avere una funzione importante nella costruzione di una realtà acustica metropolitana, sino a divenirne un’impronta sonora. Il saggio è corredato da esempi video che illustrano la pratica musicale in analisi e consentono di valutarne l’impatto sul paesaggio sonoro circostante.Being characterized by a constant overlapping of different kinds of acoustic stimuli, contemporary metropolitan soundscapes are composite entities that are rather difficult to interpret. Within these contexts however, the production of live music undoubtedly has a crucial role in the construction of sonic public spaces and of the acoustic ideas and concepts that are associated with them. This paper presents some results of a research conducted in Yogyakarta (Java, Indonesia) regarding a particular kind of street music, i.e. the angklung bands: groups of buskers who make a living by performing every day in the most crowded spaces of the city. By applying the ethnographic method of participant observation, the activity of these musicians was documented, together with their life stories, repertoires and performative practices. In addition, the complexity of the phenomenon and its “osmotic” relationship with the Yogyanese urban context was carefully considered. This specific case study is utilized in order to show how an apparently marginal musical practice has had a significant function in the construction of a metropolitan acoustic environment, to the extent of becoming one of its soundmarks. This paper is accompanied by several video examples, which illustrate how the musical practice analyzed is conducted and make it possible to evaluate its impact on the surrounding soundscape

A Design Methodology for a Computer-Supported Collaborative Skills Lab in Technical Translation Teaching

Aim/Purpose The aim of this study is to adopt more systematically the collaborative learning dimension in the technical translation teaching at Master Degree level. In order to do so, a computer-supported skills lab approach is targeted. This approach is aimed at enhancing traditional courses on Computer-Assisted Translation (CAT) so that student competences and soft skills are enhanced. Background In traditional CAT courses, laboratory sessions complement theoretical lessons, thus providing students mainly with tool-oriented operational knowledge, while nowadays more intertwined competences are required by the labor market. Moreover, this sector lacks skills labs which engage students in collaborative activities mimicking professional workflows, thus not exploiting team-based learning potential effectiveness. Methodology In this paper, therefore, a design methodology to deploy and operate an enhanced skills lab as a remote Computer-Supported Collaborative Simulated Translation Bureau (CS2TB) is proposed and validated. The proposed methodology is based on a set of intertwined methodological frameworks that address: 1) student competences and educational requirements, 2) collaborative aspects, 3) regulatory policies as well as functional and interactional guidelines for the simulated fieldwork. The overall effectiveness of the proposed methodology has been assessed by using pre-post questionnaires to ascertain student feedback. The improvement in technology skills has been evaluated by collecting and examining student help requests as well as system error logs. Contribution The CS2TB provides a technology-enhanced simulation-based learning environment whose aim is twofold: first, enriching traditional approaches with a Computer-Supported Collaborative Learning (CSCL) experience and, second, incorporating widely adopted approaches for the translation-teaching domain as the required grounding knowledge. Findings Results demonstrate the effectiveness of CS2TB in improving students' competences (specifically in the IT area but also in the technical translation area), students' willingness to operate in a fieldwork-like context and cooperative learning efficacy. Recommendations for Practitioners The educational implications of the proposed approach concern the development of a full range of competences and soft skills for students in the technical translation teaching at the higher education level, ranging from language and translation proficiency to the usage of IT platforms as well as personal and interpersonal interactional soft skills. Recommendations for Researchers This study offers a wide overview of all the aspects entailed by the design, implementation, management, and evaluation of a skills lab for technical translation teaching. Researchers may benefit from the rigorous modelling approach as well as from the adopted assessment techniques. Moreover, the study stresses the pivotal role of a tight collaboration between language/translation teaching and computer engineering. Impact on Society Higher education institutions that already have courses on computer-assisted translation may benefit from the proposed CS2TB approach, which allows them to design new thematic activities leveraging team-based learning, collaborative learning, and fieldwork-situated simulation. Moreover, the presented broad range of assessment approaches can be used to measure the impact of CS2TB on learning outcomes of the involved students. Future Research Future research activities will be dedicated to examining the impact of a different set of enabling IT platforms on the collaborative learning perspective, to evaluate alternative scaffolding approaches (e.g., chatbots or augmented reality), and to increase simulation fidelity further, so that even more student competences can be fostered

Modelling Innovative High Temperature Superconductors for Fusion Applications

L'abstract è presente nell'allegato / the abstract is in the attachmen

Wave-Shaped Round Functions and Primitive Groups

Round functions used as building blocks for iterated block ciphers, both in the case of Substitution-Permutation Networks and Feistel Networks, are often obtained as the composition of different layers which provide confusion and diffusion, and key additions. The bijectivity of any encryption function, crucial in order to make the decryption possible, is guaranteed by the use of invertible layers or by the Feistel structure. In this work a new family of ciphers, called wave ciphers, is introduced. In wave ciphers, round functions feature wave functions, which are vectorial Boolean functions obtained as the composition of non-invertible layers, where the confusion layer enlarges the message which returns to its original size after the diffusion layer is applied. This is motivated by the fact that relaxing the requirement that all the layers are invertible allows to consider more functions which are optimal with regard to non-linearity. In particular it allows to consider injective APN S-boxes. In order to guarantee efficient decryption we propose to use wave functions in Feistel Networks. With regard to security, the immunity from some group-theoretical attacks is investigated. In particular, it is shown how to avoid that the group generated by the round functions acts imprimitively, which represent a serious flaw for the cipher

An extension of Overbeck's attack with an application to cryptanalysis of Twisted Gabidulin-based schemes

In the present article, we discuss the decoding of Gabidulin and related codes from a cryptographic perspective and we observe that these codes can be decoded with the single knowledge of a generator matrix. Then, we extend and revisit Gibson's and Overbeck's attacks on the generalised GPT encryption scheme (instantiated with Gabidulin codes) for various ranks of the distortion matrix and apply our attack to the case of an instantiation with twisted Gabidulin codes