RapidUp: Multi-Domain Permutation Protocol for Lookup Tables

SNARKs for some standard cryptographic primitives tend to be plenty designed with SNARK-unfriendly operations such as XOR. Previous protocols such as [GW20] worked around this problem by the introduction of lookup arguments. However, these protocols were only appliable over the same circuit. RapidUp is a protocol that solves this limitation by unfolding the grand-product polynomial into two (equivalent) polynomials of the same size. Morevoer, a generalization of previous protocols is presented by the introduction of selectors

Envejecimiento de la población

•Actividades básicas de la vida diaria en personas mayores y factores asociados •Asociación entre depresión y posesión de mascotas en personas mayores •Calidad de vida en adultos mayores de Santiago aplicando el instrumento WHOQOL-BREF •Calidad de vida en usuarios con enfermedad de Parkinson, demencia y sus cuidadores, comuna de Vitacura •Caracterización de egresos hospitalarios de adultos mayores en Puerto Natales (2007-2009) •Comportamiento de las patologías incluidas como GES para el adulto mayor atendido en un Cesfam •Contribución de vitaminas y minerales a las ingestas recomendadas diarias en ancianos institucionalizados de Madrid •Estado de salud oral del paciente inscrito en el Programa de Visita Domiciliaria •Evaluación del programa de discapacidad severa en Casablanca con la matriz de marco lógico •Factores asociados a satisfacción vital en una cohorte de adultos mayores de Santiago, Chile •Pauta instrumental para la identificación de riesgos para el adulto mayor autovalente, en su vivienda •Perfil farmacológico del paciente geriátrico institucionalizado y posibles consecuencias en el deterioro cognitivo •Programa de cuidados paliativos y alivio del dolor en Puerto Natales •Rehabilitación mandibular implantoprotésica: efecto en calidad de vida relacionada con salud bucal en adultos mayores •Salud bucodental en adultos mayores autovalentes de la Región de Valparaíso •Transición epidemiológica y el estudio de carga de enfermedad en Brasi

Database of spatial distribution of non indigenous species in Spanish marine waters

Research in marine Spanish waters are focused on several actions to achieve an effectively management on protected areas, with the active participation of the stakeholders and research as basic tools for decision-making. Among these actions, there is one about the knowledge and control on NIS. One of its objectives is the creation of NIS factsheets, which are going to be added to the National Marine Biodiversity Geographical System (GIS) providing complementary information about taxonomic classification, common names, taxonomic synonyms, species illustrations, identification morphological characters, habitat in the native and introduced regions, biological and ecological traits, GenBank DNA sequences, world distribution, first record and evolution in the introduced areas, likely pathways of introduction, effects in the habitats and interaction with native species, and potential management measures to apply. The database will also provide data for (1) the European online platforms, (2) the environmental assessment for the Descriptor 2 (D2-NIS) of the EU Marine Strategy Framework Directive (MSFD), as well as (3) supporting decisions made by stakeholders. It is the result of extensive collaboration among scientist, manager’s and citizen science in the Spanish North-Atlantic, South-Atlantic, Gibraltar Strait-Alboran, Levantine-Balearic and Canary Islands marine divisions, providing an updated overview of the spatial distribution of relevant extended and invasive NIS of recent and established NIS introduced by maritime transport and aquaculture pathways, as well as on cryptogenic or native species in expansion due to the climatic water warming trend

Colombian consensus recommendations for diagnosis, management and treatment of the infection by SARS-COV-2/ COVID-19 in health care facilities - Recommendations from expert´s group based and informed on evidence

La Asociación Colombiana de Infectología (ACIN) y el Instituto de Evaluación de Nuevas Tecnologías de la Salud (IETS) conformó un grupo de trabajo para desarrollar recomendaciones informadas y basadas en evidencia, por consenso de expertos para la atención, diagnóstico y manejo de casos de Covid 19. Estas guías son dirigidas al personal de salud y buscar dar recomendaciones en los ámbitos de la atención en salud de los casos de Covid-19, en el contexto nacional de Colombia

VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad

Acta de congresoLa conmemoración de los cien años de la Reforma Universitaria de 1918 se presentó como una ocasión propicia para debatir el rol de la historia, la teoría y la crítica en la formación y en la práctica profesional de diseñadores, arquitectos y urbanistas. En ese marco el VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad constituyó un espacio de intercambio y reflexión cuya realización ha sido posible gracias a la colaboración entre Facultades de Arquitectura, Urbanismo y Diseño de la Universidad Nacional y la Facultad de Arquitectura de la Universidad Católica de Córdoba, contando además con la activa participación de mayoría de las Facultades, Centros e Institutos de Historia de la Arquitectura del país y la región. Orientado en su convocatoria tanto a docentes como a estudiantes de Arquitectura y Diseño Industrial de todos los niveles de la FAUD-UNC promovió el debate de ideas a partir de experiencias concretas en instancias tales como mesas temáticas de carácter interdisciplinario, que adoptaron la modalidad de presentación de ponencias, entre otras actividades. En el ámbito de VIII Encuentro, desarrollado en la sede Ciudad Universitaria de Córdoba, se desplegaron numerosas posiciones sobre la enseñanza, la investigación y la formación en historia, teoría y crítica del diseño, la arquitectura y la ciudad; sumándose el aporte realizado a través de sus respectivas conferencias de Ana Clarisa Agüero, Bibiana Cicutti, Fernando Aliata y Alberto Petrina. El conjunto de ponencias que se publican en este Repositorio de la UNC son el resultado de dos intensas jornadas de exposiciones, cuyos contenidos han posibilitado actualizar viejos dilemas y promover nuevos debates. El evento recibió el apoyo de las autoridades de la FAUD-UNC, en especial de la Secretaría de Investigación y de la Biblioteca de nuestra casa, como así también de la Facultad de Arquitectura de la UCC; va para todos ellos un especial agradecimiento

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Desing and Evaluation of Certificate Revocation Systems

Este trabajo presenta tanto el estado del arte como un análisis de los principales sistemas de revocación de certificados digitales. El hecho de comprender bien el mecanismo de revocación de un certificado es importante tanto para los proveedores de servicios PKI como para los usuarios finales de la PKI: una mejor comprensión de las complejidades del sistema de revocación permite a estas entidades mejorar su proceso de decisión a la hora de aceptar o rechazar un certificado teniendo en cuenta la gran cantidad de variables inherentes en los sistemas de revocación. La revocación de certificados se presenta como uno de los problemas más complejos a resolver en toda la PKI. Por tanto este aspecto se está convirtiendo en un punto crucial para el amplio desarrollo de las PKIs. Hay estudios que incluso argumentan que los costes de la PKI derivan en gran medida de la administración de la revocación.Esto nos ha motivado para desarrollar nuevas propuestas. En este sentido, hemos desarrollado tres propuestas: H-OCSP (propuesta de mejora basada en el estándar OCSP), AD-MHT (propuesta basada en los árboles de hash de Merkle) y E-MHT (propuesta que aglutina varios mecanismos que permiten mejorar la eficiencia de los sistemas tradicionales basados en el árbol de hash de Merkle). Las propuestas que se plantean en esta tesis no son solo un conjunto de mecanismos teóricos sino que son también sistemas prácticos que han sido implementados como parte de una plataforma de pruebas llamada Cervantes. El diseño de Cervantes permite además encajar cualquier otro tipo de sistema de revocación sin cambios significativos en la estructura o el código fuente de la plataforma. En particular, en esta tesis se detalla como se han implementado los dos grandes estándares de revocación: CRL y OCSP y como se han implementado las propuestas realizadas. Finalmente utilizando Cervantes se pueden observar resultados de rendimiento para todos los sistemas estudiados y en particular nuestras propuestas han demostrado finalmente ser más escalables y eficientes en tratamiento de la información de revocación que las propuestas anteriores.Certificates are necessary but not sufficient to secure transactions between parties. The Public Key Infrastructure (PKI) has to provide its users the ability to check, at the time of usage, that certificates are still valid (not revoked). So understanding revocation is an important concern to both PKI service providers and end users. By a better understanding of the complexities of certificate revocation, certificate-using entities can improve their decision-making process in order to accept or reject a certain certificate. In this sense, this thesis presents a comprehensive survey and analysis of the main existing revocation schemes. Furthermore, the certificate revocation represents one of the hardest scalability problems of the whole PKI; so this aspect is getting more and more crucial with the development of wide spread PKIs. There are studies that even argue that the running expenses of a PKI derives mainly from administering revocation. This motivate us to propose scalable, timely, secure, and cost-effective systems to manage the revocation information. In this respect, we have three new proposals: H-OCSP (which is a modification over the standard OCSP), AD-MHT (which is based on the Merkle Hash Tree) and E-MHT (which agglutinates several mechanisms that enhance the efficiency of traditional MHT-based systems). Our proposals are not only a set of theoretical mechanisms but they are also practical systems that have been implemented inside a Java test-bed called Cervantes (Certificate Validation Test-bed). The design of Cervantes allows it to fit any kind of revocation system without significative changes in the structure or the source code of the platform. Finally using Cervantes we are able to obtain performance results about each system developed

New privacy practices for blockchain software

In this article, we present the software tools we have implemented to bring complex privacy technologies closer to developers and to facilitate the implementation of privacyenabled blockchain applicationsThis research is supported by the Ethereum Foundation Ecosystem Support, privacy and security in blockchain (RISEBLOCK, Id: PID2019- 110224RB-I00), intelligent, interoperable, integrative and deployable open source MARKETplace with trusted and secure software tools for incentivizing the industry data economy (i3-MARKET, European Commission, H2020, Id: 871754), a software architecture for rate-control over integrated satellite-terrestrial networks (ARPASAT, Id: TEC2015-70197-R), Information Security Group (ISG, Id: 2014-SGR-1504), Photoreal REaltime Sentient ENTity (PRESENT, European Commission, H2020, Id: 856879), and Técnicas avanzadas de cadenas de bloques para la internet de las cosas (Id: RTI2018-102112-B-I00)

Root dynamics of peach trees submitted to partial rootzone drying and continuous deficit irrigation

The root dynamics of young early-season peach trees (Prunus persica L. Batsch, cv. Flordastar) were studied during one growing season. The trees were submitted to three drip irrigation treatments: T1 (control) irrigated at 100% of the estimated crop evapotranspiration (ETc) requirements, T2 (continuous deficit) irrigated at 50% ETc and T3 (partial rootzone drying, PRD, treatment), alternating irrigation from one half to the other every 2-3 weeks. Root length was measured frequently using minirhizotrons and a circular-vision scanner. Overall, root length density was reduced by ≈73% in the continuous deficit irrigated treatment and by ≈42% in the T3 treatment with respect to the well irrigated treatment. A roughly similar amount of water was applied in both deficit irrigated treatments (44 and 56% of T1, for T2 and T3, respectively), but the continuous deficit irrigation applied to both sides of the root system in T2 resulted in a greater reduction in root growth than in T3. The dynamics of the root growth were similar in the three treatments. In general, root growth declined during the fruit growth period and increased after harvest, reaching its peak in mid July. By late July, root growth had declined again, and an alternating pattern of growth between the aerial and root parts of the tree was observed. Roots were mostly located in the upper 0.55 m of soil and were particularly concentrated at 0.40-0.55 m. More than 88% of these roots were very thin, with diameters of <0.5 mm. The study looks at the impact of deficit irrigation on the phenological processes related with root growth, and will help in making decisions concerning fertigation in areas with scarce water resources where deficit irrigation strategies are considered desirable. © 2008 Elsevier B.V. All rights reserved.The study was supported by Ministerio de Educación y Ciencia (MEC) (AGL2006-12914-C02-01), Séneca Foundation, Murcia (03130/PI/05), IRRIQUAL (FP6-FOOD-CT-2006-023120), and Consolider-Ingenio2010 (CSD2006-0067) grants to the authors. O. Mounzer and W. Conejero received a fellowship from MEC-FPI (Spain) Y. García-Orellana from Fundayacucho (Venezuela) and I. Abrisqueta from I3P-CSIC (Spain).Peer Reviewe

Carbonate and organic matter sedimentation and isotopic signatures in Lake Chungará, Chilean altiplano, during the last 12.3 kyr.

Sediments in lakes in the Andean volcanic setting are often made up of diatomaceous ooze together with volcaniclastics and small amounts of carbonates. Despite their scarcity, carbonates along with organic matter provide significant paleoenvironmental information about lake systems. This study focuses on the carbonates in Lake Chungará, their morphologies, distribution and origin deduced from the isotopic markers. These markers re flected changes in the water and the biomass between the onset of the Holocene and around 9.6 calkyr BP. These changes are marked by general increases in TOC, TN,and TN-δ15 NAIR, andby fluctuating values of TOC-δ13 CVPDB in its sediments and are probably related to major shifts in the lake surface/volume associated with rises in lake level. An increase in salinity around 10 cal kyr BPis thought to be linked toa short dryperiod, giving rise to the onset of carbonate production. The mid-Holocene arid period between 7.3 and 3.5 cal ka BP, with a maximum of aridity around 6.0 cal kyr BP, was deduced from δ18O VPDB values in the endogenic carbonates. These results match the reconstructions in Lake Titicaca based on benthic diatoms and paleoshore levels