956 research outputs found
A Uniform Framework for Regulating Service Access and Information Release on the Web
No full textThe widespread use of Internet-based services is increasing the amount of information (such as user profiles) that clients are required to disclose. This information demand is necessary for regulating access to services, and functionally convenient (e.g., to support service customization), but it has raised privacy-related concerns which, if not addressed, may affect the users disposition to use network services. At the same time, servers need to regulate service access without disclosing entirely the details of their access control policy. There is therefore a pressing need for privacy-aware techniques to regulate access to services open to the network. We propose an approach for regulating service access and information disclosure on the Web. The approach consists of a uniform formal framework to formulate - and reason about - both service access and information disclosure constraints. It also provides a means for parties to communicate their requirements while ensuring that no private information be disclosed and that the communicated requirements are correct with respect to the constraints
How to hit scylla without avoiding charybdis: Comment on Perruchet, Tyler, Galland, and Peereman (2004)
No full textM. Pe (n) over tildea, L. L. Bonatti, M. Nespor, and J. Mehler (2002) argued that humans compute nonadjacent statistical relations among syllables in a continuous artificial speech stream to extract words, but they use other computations to determine the structural properties of words. Instead, when participants are familiarized with a segmented stream, structural generalizations about words are quickly established. P. Perruchet, M. D. Tyler, N. Galland, and R. Peereman (2004) criticized M. Pe (n) over tildea et al.'s work and dismissed their results. In this article, the authors show that P. Perruchet et al.'s criticisms are groundless
Regulating Service Access and Information Release on the Web
No full textThe widespread use of Internet-based services is increasing the amount of information (such as user profiles) that clients are required to disclose. This information demand is necessary for regulating access to services, and functionally convenient (e.g., to support service customization), but it has raised privacy-related concerns which, if not addressed, may affect the users disposition to use network services. At the same time, servers need to regulate service access without disclosing entirely the details of their access control policy. There is therefore a pressing need for privacy-aware techniques to regulate access to services open to the network. We propose an approach for regulating service access and information disclosure on the Web. The approach consists of a uniform formal framework to formulate-and reason about-both service access and information disclosure constraints. It also provides a means for parties to communicate their requirements while ensuring that no private information be disclosed and that the communicated requirements are correct w.r.t. the constraints
A false sense of security
No full textThe growing literature on confidentiality in knowledge representation and reasoning
sometimes may cause a false sense of security, due to lack of details about the attacker, and
some misconceptions about security-related concepts. This note analyzes the vulnerabilities
of some recent knowledge protection methods to increase the awareness about their actual
effectiveness and their mutual differences
Big Data and Analytics in the Age of the GDPR
No full textThe new European General Data Protection Regulation places stringent restrictions on the processing of personally identifiable data. The GDPR does not only affect European companies, as the regulation applies to all the organizations that track or provide services to European citizens. Free exploratory data analysis is permitted only on anonymous data, at the cost of some legal risks.We argue that for the other kinds of personal data processing, the most flexible and safe legal basis is explicit consent. We illustrate the approach to consent management and compliance with the GDPR being developed by the European H2020 project SPECIAL, and highlight some related big data aspects
Termini di prescrizione
No full textIl volume si occupa di commentare la trasposizione in Italia della direttiva europea sul risarcimento del danno da illecito antitrust. Il capitolo riguarda la norma relativa al termine di prescrzion
Ultrastructural Evidence for Cellular Response in Tobacco Leaves Following Infiltration with Protein‐Lipopolysaccharide Complexes of Pseudomonas syringae pv. tabaci)
No full textThe ultrastructure of tobacco leaves cv. White Burley infiltrated in the intercellular spaces with protein‐lipopolysaccharide (pr‐LPS) complexes of a virulent strain of Pseudomonas syringae pv. tabaci was studied. Light and electron microscope observations were made immediately and 4, 6, 8 and 24 h after infiltration. For the light microscope semithin sections were treated with the periodic acid‐Schiff (PAS) method to reveal polysaccharides. For electron microscopy ultrathin sections of 24 h samples were cytochemically treated to reveal the plasmalemma, the proteins and the β → 4 polysaccharides. Light microscopy only revealed the presence of intercellular PAS positive areas in the treated tissue from 6 h onwards. Electron microscopy revealed a localized cellular response (L.C.R.) on the walls where pr‐LPS complexes had formed deposits. The L.C.R., barely visible after 4 h, became well established at 24 h. It involved the plasmalemma, which retracted, and the underlying cytoplasm, where there was an increase in the endoplasmic reticulum. Details of the ultrastructural alterations were interpreted on the basis of the cytochemical visualization. During the L.C.R. the plasmalemma appeared to be site of an active transport process. The results show that the virulent strain of P. syringae pv. tabaci possesses surface macromolecules containing cognons involved in recognition by tobacco leaf cells. Die Ultrastruktur von Tabakblättern der Sorte ‘White Burley’ wurde nach der Infiltration von Protein‐Lipopolysaccharid (pr‐LPS)‐Komplexen eines virulenten Stammes von Pseudomonas syringae pv. tabaci in die Interzellularräume untersucht. Licht‐ und elektronenmikroskopische Beobachtungen wurden 4, 6, 8 und 24 Std. nach Infiltration durchgeführt. Für die lichtmikroskopischen Studien wurden halbdünne Schnitte nach der Schiff'schen Perjodsäure (PAS)‐Methode behandelt, um Polysaccharide sichtbar zu machen. Für die Elektronenmikroskopie wurden Ultradünnschnitte von 24 Std. pi‐Proben cytochemisch aufbereitet, um Plasmalemma, Proteine und die β1→4 Polysaccharide kenntlich zu machen. Die lichtmikroskopischen Untersuchungen ergaben erst ab 6 Std. pi im behandelten Gewebe bei Gegenwart von interzellulärer PAS positive Zonen. Im Elektronenmikroskop war eine lokalisierte zelluläre Reaktion (L.C.R.) an den Zellwänden sichtbar, an denen die pr‐LPS‐Komplexe Ablagerungen gebildet hatten. Die L.C.R. war nach 4 Std. kaum sichtbar, nach 24 Std. deutlich ausgebildet und führte zu einer Kontraktion des Plasmalemmas und im darunter liegenden Cytoplasma zu einer Zunahme des endoplasmatischen Reticulums. Einzelheiten der ultrastrukturellen Veränderungen wurden auf der Basis der cytochemischen Sichtbarmachung interpretiert. Während der L.C.R.‐Reaktion war das Plasmalemma offenbar der Ausgangspunkt für den aktiven Transportprozeß. Die Ergebnisse zeigen, daß der virulente Stamm von P. syringae pv. tabaci an den Oberflächen Makromoleküle besitzt, die sog. Cognon enthalten, und von den Tabak‐Blattstellen als solche wieder erkannt werden. 1985 Paul Parey Scientific Publishers, Berlin and Hambur
Esibizione delle prove presso controparte o terzo e Sanzioni per violazione della disciplina delle prove
No full textIl volume si occupa di commentare l'attuazione in Italia della direttiva europea sul risarcimento del danno da illeciti antitrust. Il capitolo riguarda la disciplina dell'ordine di esibizione del giudice rispetto a prove o informazioni detenute dalla parte danneggiant
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