Mirna Castro, Javier García‐Planells, Eugènia Monrós, Joaquı́n Cañizares, Rafael P. Vázquez‐Manrique, Juan J. Vílchez, Miguel Urtasun, Miguel Lucas, Guillermo Navarro, Guillermo Izquierdo, María Dolores Moltó, Francesc Palau,
Tópico(s): Amyotrophic Lateral Sclerosis Research
2000 - Springer Science+Business Media | Human Genetics
Joaquin Garcia‐Alfaro, Fabien Autrel, Joan Borrell, Sergio Castillo, Frédéric Cuppens, Guillermo Navarro‐Arribas,
Tópico(s): Network Security and Intrusion Detection
2004 - Springer Science+Business Media | Lecture notes in computer science
Carles Garrigues, Sergi Robles, Joan Borrell, Guillermo Navarro‐Arribas,
Tópico(s): Network Security and Intrusion Detection
2009 - Elsevier BV | Journal of Systems and Software
Guillermo Izquierdo, Santiago Angulo, J M García-Moreno, Miguel Ángel Gamero-García, Guillermo Navarro, J. M. Gata, J L Ruiz-Peña, María Dolores Páramo,
We study the power of IgG synthesis value as a marker of disease activity in multiple sclerosis (MS).Link index was calculated in 202 MS patients. Time between first, second and third attack and progression index (PI) were compared in patient with normal (NLI) high (HL) or very high Link index (VHLI).Secondary progressive (SP) patients had a higher LI than relapsing-remitting (RR) and primary progressive (PP) courses (1.10 +/- 0.5 for SP vs 0.86 +/- 0.5 for RR and 0.81 +/- 0.5 for PP, P=0.01 and 0.03, respectively). ...
Tópico(s): Peripheral Neuropathies and Disorders
2002 - Wiley | Acta Neurologica Scandinavica
J. Cucurull, Ramón Martí, Guillermo Navarro‐Arribas, Sergi Robles, B.J. Overeinder, Joan Borrell,
Mobile agents are autonomous software entities driven by a set of goals and tasks. Reactivity, social ability, autonomy, the ability to move to different network locations, and the weak agent notion of proactiveness, allow for autonomous processing of distributed information according to their environment (context awareness). Although agent mobility has been devised for homogeneous environments, deployment of agent mobility in heterogeneous environments has been hindered by the absence of a common ...
Tópico(s): Multi-Agent Systems and Negotiation
2008 - Elsevier BV | Computer Communications
Joaquin Garcia‐Alfaro, Guillermo Navarro‐Arribas,
Security is becoming one of the major concerns for web applications and other Internet based services, which are becoming pervasive in all kinds of business models, organizations, and so on. Moreover, critical systems such as those related to health care, banking, or even emergency response, are relying on such applications and services. Web applications must therefore include, in addition to the expected value offered to their users, reliable mechanisms to ensure their security. In this paper, ...
Tópico(s): Advanced Malware Detection Techniques
2008 - Springer Science+Business Media | Lecture notes in computer science
Joaquin Garcia‐Alfaro, Guillermo Navarro‐Arribas, Ana Cavalli, Jean Leneutre,
Tópico(s): Privacy-Preserving Technologies in Data
2010 - Springer Science+Business Media | Lecture notes in computer science
Arnau Erola, Jordi Castellà‐Roca, Guillermo Navarro‐Arribas, Vicenç Torra,
Tópico(s): Cryptography and Data Security
2010 - Springer Science+Business Media | Lecture notes in computer science
Daniel Abril, Guillermo Navarro‐Arribas, Vicenç Torra,
In the data privacy context, specifically, in statistical disclosure control techniques, microaggregation is a well-known microdata protection method, ensuring the confidentiality of each individual. In this paper, we propose a new approach of microaggregation to deal with semantic sets of categorical data, like text documents. This method relies on the WordNet framework that provides complete semantic relationship taxonomy between words. Therefore, this extension aims ensure the confidentiality ...
Tópico(s): Access Control and Trust
2010 - Springer Science+Business Media | Lecture notes in computer science
Guillermo Navarro‐Arribas, Vicenç Torra,
Purpose The purpose of this paper is to anonymize web server log files used in e‐commerce web mining processes. Design/methodology/approach The paper has applied statistical disclosure control (SDC) techniques to achieve its goal. More precisely, it has introduced the micro‐aggregation of web access logs. Findings The experiments show that the proposed technique provides good results in general, but it is especially outstanding when dealing with relatively small websites. Research limitations/implications ...
Tópico(s): Internet Traffic Analysis and Secure E-voting
2010 - Emerald Publishing Limited | Internet Research
... the "school museums" by professors Pedro Scalabrini and Guillermo Navarro. These account for the tension between searching for ...
Tópico(s): Indigenous Cultures and History
2007 - Fundação Oswaldo Cruz, Casa de Oswaldo Cruz | História Ciências Saúde-Manguinhos
Produção Nacional
Revisado por pares
Esteve Corbera, Manuel Estrada, Peter H. May, Guillermo Navarro‐Arribas, Pablo Pacheco,
Land tenure and carbon rights constitute critical issues to take into account in achieving emission reductions, ensuring transparent benefit sharing and determining non-permanence (or non-compliance) liabilities in the context of REDD+ strategies and projects. This is so because tenure systems influence who becomes involved in efforts to avoid deforestation and improve forest management, and that land tenure, carbon rights and liabilities may be linked or divorced with implications for rural development. ...
Tópico(s): Agriculture, Land Use, Rural Development
2011 - Multidisciplinary Digital Publishing Institute | Forests
Daniel Abril, Guillermo Navarro‐Arribas, Vicenç Torra,
Tópico(s): Data-Driven Disease Surveillance
2011 - Springer Science+Business Media | Annals of Operations Research
Guillermo Navarro‐Arribas, Vicenç Torra, Arnau Erola, Jordi Castellà‐Roca,
The anonymization of query logs is an important process that needs to be performed prior to the publication of such sensitive data. This ensures the anonymity of the users in the logs, a problem that has been already found in released logs from well known companies. This paper presents the anonymization of query logs using microaggregation. Our proposal ensures the k-anonymity of the users in the query log, while preserving its utility. We provide the evaluation of our proposal in real query logs, ...
Tópico(s): Internet Traffic Analysis and Secure E-voting
2011 - Elsevier BV | Information Processing & Management
Joaquin Garcia‐Alfaro, Guillermo Navarro‐Arribas, Ana Cavalli, Jean Leneutre,
This book constitutes the thoroughly refereed joint post proceedings of two international workshops, the 5th International Workshop on Data Privacy Management, DPM 2010, and the 3rd International Work
Tópico(s): Advanced Malware Detection Techniques
2011 - Springer Science+Business Media | Lecture notes in computer science
Daniel Abril, Guillermo Navarro‐Arribas, Vicenç Torra,
Tópico(s): Cloud Data Security Solutions
2011 - Elsevier BV | Information Fusion
Carles Martínez-García, Guillermo Navarro‐Arribas, Joan Borrell,
Tópico(s): Privacy-Preserving Technologies in Data
2011 - Elsevier BV | Information Processing Letters
Daniel Abril, Guillermo Navarro‐Arribas, Vicenç Torra,
We introduce the anonymization of unstructured documents to settle the base of automatic declassification of confidential documents. Departing from known ideas and methods of data privacy, we introduce the main issues of unstructured document anonymization and propose the use of named entity recognition techniques from natural language processing and information extraction to identify the entities of the document that need to be protected.
Tópico(s): Digital and Cyber Forensics
2011 - Springer Science+Business Media | Lecture notes in computer science
Pedro Vieira‐Marques, Sergi Robles, Jordi Cucurull, Ricardo Cruz‐Correia, Guillermo Navarro‐Arribas, Ramón Martí,
Healthcare is information driven and knowledge driven. Good healthcare depends on making decisions at the right time and place, using the right patient data and applicable knowledge. Communication is of utmost relevance in today's healthcare settings, in that delivery of care, research, and management all depend on sharing information. The proposed system can securely gather, integrate, and display distributed medical information using mobile-agent technology and agent-driven security
Tópico(s): Peer-to-Peer Network Technologies
2006 - Institute of Electrical and Electronics Engineers | IEEE Intelligent Systems
Guillermo Navarro‐Arribas, Vicenç Torra,
In this paper, we review the role of information fusion in data privacy. To that end, we introduce data privacy, and describe how information and data fusion are used in some fields of data privacy. Our study is focused on the use of aggregation for privacy protections, and record linkage techniques.
Tópico(s): Cryptography and Data Security
2012 - Elsevier BV | Information Fusion
Guillermo Navarro, José J. Fernández, Manuel Norte,
Five new meroditerpenes have been isolated from a brown alga of the genus Cystoseira collected around the Canary Islands. One, cystoseirone diacetate (3), possesses a new rearranged structure with an unusual ether linkage in the diterpene side chain. Its biogenetic origin was explained as derived from the oxidation of amentol chromane diacetate (2) and subsequent cyclization. Structures were determined through the interpretation of the spectral data and by means of chemical transformations. The relative ...
Tópico(s): Seaweed-derived Bioactive Compounds
2004 - American Chemical Society | Journal of Natural Products
Guillermo Navarro‐Arribas, Vicenç Torra,
This book provides an overview of the research work on data privacy and privacy enhancing technologies carried by the participants of the ARES project. ARES (Advanced Research in Privacy an Security,
Tópico(s): Digital and Cyber Forensics
2014 - Springer Nature | Studies in computational intelligence
Guillermo Izquierdo, Ana Venegas, Carmen Amalia Camacho Sanabria, Guillermo Navarro,
Objectives Comprehensive epidemiologic data for multiple sclerosis (MS) in Spain are limited. The aim of this study was to collect epidemiologic data on MS in the Northern Seville District of Spain. Materials and methods This longitudinal study identified possible MS cases every year from nine centres between 1 January 1991 and 31 December 2011. Patients with a confirmed diagnosis of MS were included. MS data prior to enrolment were collected retrospectively from clinical records and prospectively ...
Tópico(s): Rheumatoid Arthritis Research and Therapies
2015 - Wiley | Acta Neurologica Scandinavica
Vicenç Torra, Guillermo Navarro‐Arribas,
Abstract Data privacy has been studied in the area of statistics (statistical disclosure control) and computer science (privacy preserving data mining and privacy enhancing technologies) for at least 40 years. In this period models, measures, methods, and technologies have been developed to effectively protect the disclosure of sensitive information. The coming of big data, with large volumes of data, dynamic and streaming data, poses new challenges to the field. In this paper we will review some ...
Tópico(s): Cryptography and Data Security
2016 - Springer Science+Business Media | IFIP advances in information and communication technology
Guillermo Navarro, David K. Umberger, Milos Manic,
Disk arrays provide data storage by combining sets of disks into one or more virtual disks (VDs) utilizing specialized control algorithms. A VD is a partition of such combined storage capacity perceived by the user as a physical disk. VD cloning is a data protection technique that copies the data from one VD to another. A typical problem with VD cloning is that it delays user reads and writes, i.e., increases response times. This paper presents VD- Interval Type 2 (IT2), an effective IT2 fuzzy logic ...
Tópico(s): Parallel Computing and Optimization Techniques
2016 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Fuzzy Systems
Danilo Davyt, Walter Enz, Eduardo Manta, Guillermo Navarro, Manuel Norte,
Abstract Two new chromenol derivatives, compounds (5) and (6) were isolated from the brown alga Desmarestia menziessi and their structures were elucidated by spectroscopic methods. The already described compounds desmarestial (1), sargadiol I (3), plastoquinone (2) and its hydroquinone form, were also isolated. The results obtained from tests for cytotoxic and anthelmintic activity of all those compounds are reported.
Tópico(s): Microbial Natural Products and Biosynthesis
1997 - Taylor & Francis | Natural product letters
Sergi Delgado-Segura, Cristina Pérez‐Solà, Guillermo Navarro‐Arribas, Jordi Herrera‐Joancomartí,
Tópico(s): Distributed systems and fault tolerance
2017 - Elsevier BV | Future Generation Computer Systems
Guillermo Izquierdo, Fátima Damas, María Dolores Páramo, Juan Luis Ruíz-Peña, Guillermo Navarro,
Fingolimod approval was based mainly on two clinical trials, FREEDOMS and TRANSFORMS, which demonstrated the efficacy and safety of fingolimod in patients with multiple sclerosis (MS). We present an observational study that validates these trials findings in a real-world setting, whereby the effectiveness and safety of fingolimod was assessed in Seville's' (Spain) clinical practice. This retrospective study in MS patients assessed effectiveness (relapses, EDSS, gadolinium-enhancing T1 and new/enlarged ...
Tópico(s): Immune Response and Inflammation
2017 - Public Library of Science | PLoS ONE
Joaquin Garcia‐Alfaro, Guillermo Navarro‐Arribas, Hannes Hartenstein, Jordi Herrera‐Joancomartí,
This proceedings focus on data integration, privacy policies, sensitive identifiers, privacy engineering, smart contracts, soft- and hardforks.
Tópico(s): Blockchain Technology Applications and Security
2017 - Springer Science+Business Media | Lecture notes in computer science
Óscar Fernández, Guillermo Izquierdo, Victoria Fernández, Laura Leyva, Virginia Reyes, Miguel Guerrero, Antônio Ponce de León, Carlos Arnáiz, Guillermo Navarro, María Dolores Páramo, Antonio de la Cuesta, Bernat Soria, Abdelkrim Hmadcha, David Pozo, Rafael Fernández-Montesinos, María M. Leal, Itziar Ochotorena, Patricia Gálvez, Maria Angeles Geniz, Francisco Javier Barón-López, Rosario Mata, Cristina Medina, Carlos Caparrós-Escudero, Ana Cardesa, Natividad Cuende,
Currently available treatments for secondary progressive multiple sclerosis(SPMS) have limited efficacy and/or safety concerns. Adipose-mesenchymal derived stem cells(AdMSCs) represent a promising option and can be readily obtained using minimally invasive procedures.In this triple-blind, placebo-controlled study, cell samples were obtained from consenting patients by lipectomy and subsequently expanded. Patients were randomized to a single infusion of placebo, low-dose(1x106cells/kg) or high-dose( ...
Tópico(s): Effects of Vibration on Health
2018 - Public Library of Science | PLoS ONE