1,964 research outputs found
A note on the security of threshold implementations with input shares
Recently, threshold implementations (TI) with input shares have been proposed at Crypto 2015. This optimization aims for more lightweight TI designs while keeping the glitch-resistance of the original concept. In this note, we consider such an approach and provide preliminary simulation-based evidence, backed by empirical results, of the existence of -order leakages. We conclude that, while for first-order TI designs this solution can be overkill due to the extra randomness requirements, higher-order TIs can still benefit from it
Use of mixed microbial cultures to protect recycled concrete surfaces: A preliminary study
Funding Information: Funding: This work was supported by the Project BIA2017-83526-R “Self-healing processes using bio-polymers in recycled concrete and mortars”, funded by the Ministry of Economy and Competitiveness. This work was also supported by the Civil Engineering Research and Innovation for Sustainability Unit (CERIS), Applied Molecular Biosciences Unit (UCIBIO-REQUIMTE) and Associate Laboratory for Green Chemistry (LAQV-REQUIMTE), which are financed by national funds from FCT (UIDB/04625/2020, UIDB/04378/2020 and UID/QUI/50006/2020, respectively) and co-financed by the ERDF under the PT2020 Partnership. Paulo C. Lemos acknowledges the support by FCT for contract IF/01054/2014/CP1224/CT0005.One approach to tackle the problems created by the vast amounts of construction and demolition waste (CDW) generated worldwide while at the same time lengthening concrete durability and service life is to foster the use of recycled aggregate (RA) rather than natural aggregate (NA). This article discusses the use of polyhydroxyalkanoates (PHAs)-producing mixed microbial cultures (MMCs) to treat the surface of recycled concrete with a view to increase its resistance to watermediated deterioration. The microorganisms were cultured in a minimal medium using waste pinewood bio-oil as a carbon source. Post-application variations in substrate permeability were determined with the water drop absorption and penetration by water under pressure tests. The significant reduction in water absorption recorded reveals that this bioproduct is a promising surface treatment for recycled concrete.publishersversionpublishe
Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces
[EN] The large increase in the world population has resulted in a very large amount of con-
struction waste, as well as a large amount of waste glycerol from transesterification reactions of acyl
glycerides from oils and fats, in particular from the production of biodiesel. Only a limited percentage
of these two residues are recycled, which generates a large management problem worldwide. For that
reason, in this study, we used crude glycerol as a carbon source to cultivate polyhydroxyalkanoates
(PHA)-producing mixed microbial cultures (MMC). Two bioproducts derived from these cultures
were applied on the surface of concrete with recycled aggregate to create a protective layer. To
evaluate the effect of the treatments, tests of water absorption by capillarity and under low pressure
with Karsten tubes were performed. Furthermore, SEM-EDS analysis showed the physical barrier
caused by biotreatments that produced a reduction on capillarity water absorption of up to 20% and
improved the impermeability of recycled concrete against the penetration of water under pressure up
to 2.7 times relative to the reference. Therefore, this bioproduct shown to be a promising treatment to
protect against penetration of water to concrete surfaces increasing its durability and useful life
Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces
This work was supported by the Project BIA2017-83526-R "Self-healing processes using bio-polymers in recycled concrete and mortars", funded by the Ministry of Science, Innovation and Universities. This work was also supported by the Civil Engineering Research and Innovation for Sustainability Unit (CERIS), Applied Molecular Biosciences Unit (UCIBIO-REQUIMTE) and Associate Laboratory for Green Chemistry (LAQV-REQUIMTE), which are financed by national funds from FCT (UIDB/04378/2020, UIDB/04625/2020 and UID/QUI/50006/2020, respectively) and co-financed by the ERDF under the PT2020 Partnership. Paulo C. Lemos acknowledge the support by FCT for contract IF/01054/2014/CP1224/CT0005.The large increase in the world population has resulted in a very large amount of construction waste, as well as a large amount of waste glycerol from transesterification reactions of acyl glycerides from oils and fats, in particular from the production of biodiesel. Only a limited percentage of these two residues are recycled, which generates a large management problem worldwide. For that reason, in this study, we used crude glycerol as a carbon source to cultivate polyhydroxyalkanoates (PHA)-producing mixed microbial cultures (MMC). Two bioproducts derived from these cultures were applied on the surface of concrete with recycled aggregate to create a protective layer. To evaluate the effect of the treatments, tests of water absorption by capillarity and under low pressure with Karsten tubes were performed. Furthermore, SEM-EDS analysis showed the physical barrier caused by biotreatments that produced a reduction on capillarity water absorption of up to 20% and improved the impermeability of recycled concrete against the penetration of water under pressure up to 2.7 times relative to the reference. Therefore, this bioproduct shown to be a promising treatment to protect against penetration of water to concrete surfaces increasing its durability and useful life.publishersversionpublishe
Use of Mixed Microbial Cultures to Protect Recycled Concrete Surfaces: A Preliminary Study
[EN] One approach to tackle the problems created by the vast amounts of construction and
demolition waste (CDW) generated worldwide while at the same time lengthening concrete durability
and service life is to foster the use of recycled aggregate (RA) rather than natural aggregate (NA).
This article discusses the use of polyhydroxyalkanoates (PHAs)-producing mixed microbial cultures
(MMCs) to treat the surface of recycled concrete with a view to increase its resistance to water-
mediated deterioration. The microorganisms were cultured in a minimal medium using waste
pinewood bio-oil as a carbon source. Post-application variations in substrate permeability were
determined with the water drop absorption and penetration by water under pressure tests. The
significant reduction in water absorption recorded reveals that this bioproduct is a promising surface
treatment for recycled concrete.N
Population-based multicase-control study in common tumors in Spain (MCC-Spain): rationale and study design
Introduction: We present the protocol of a large population-based case-control study of 5 common tumors
in Spain (MCC-Spain) that evaluates environmental exposures and genetic factors.
Methods: Between 2008-2013, 10,183 persons aged 20-85 years were enrolled in 23 hospitals and primary
care centres in 12 Spanish provinces including 1,115 cases of a new diagnosis of prostate cancer,
1,750 of breast cancer, 2,171 of colorectal cancer, 492 of gastro-oesophageal cancer, 554 cases of chronic
lymphocytic leukaemia (CLL) and 4,101 population-based controls matched by frequency to cases by age,
sex and region of residence. Participation rates ranged from 57% (stomach cancer) to 87% (CLL cases) and
from 30% to 77% in controls. Participants completed a face-to-face computerized interview on sociodemographic
factors, environmental exposures, occupation, medication, lifestyle, and personal and family
medical history. In addition, participants completed a self-administered food-frequency questionnaire
and telephone interviews. Blood samples were collected from 76% of participants while saliva samples
were collected in CLL cases and participants refusing blood extractions. Clinical information was recorded
for cases and paraffin blocks and/or fresh tumor samples are available in most collaborating hospitals.
Genotyping was done through an exome array enriched with genetic markers in specific pathways. Multiple
analyses are planned to assess the association of environmental, personal and genetic risk factors
for each tumor and to identify pleiotropic effects.
Discussion: This study, conducted within the Spanish Consortium for Biomedical Research in Epidemiology
& Public Health (CIBERESP), is a unique initiative to evaluate etiological factors for common cancers
and will promote cancer research and prevention in Spain.The study was partially funded by the “Accion Transversal
del Cancer”, approved on the Spanish Ministry Council on the
11th October 2007, by the Instituto de Salud Carlos III-FEDER
(PI08/1770, PI08/0533, PI08/1359, PS09/00773, PS09/01286,
PS09/01903, PS09/02078, PS09/01662, PI11/01403, PI11/01889,
PI11/00226, PI11/01810, PI11/02213, PI12/00488, PI12/00265,
PI12/01270, PI12/00715, PI12/00150), by the Fundación Marqués
de Valdecilla (API 10/09), by the ICGC International Cancer Genome
Consortium CLL, by the Junta de Castilla y León (LE22A10-2), by
the Consejería de Salud of the Junta de Andalucía (PI-0571), by the
Conselleria de Sanitat of the Generalitat Valenciana (AP 061/10),
by the Recercaixa (2010ACUP 00310), by the Regional Government
of the Basque Country by European Commission grants FOOD-CT-
2006-036224-HIWATE, by the Spanish Association Against Cancer
(AECC) Scientific Foundation, by the The Catalan Government
DURSI grant 2009SGR1489
Measurement of the cross-section and charge asymmetry of bosons produced in proton-proton collisions at TeV with the ATLAS detector
This paper presents measurements of the and cross-sections and the associated charge asymmetry as a
function of the absolute pseudorapidity of the decay muon. The data were
collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with
the ATLAS experiment at the LHC and correspond to a total integrated luminosity
of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements
varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the
1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured
with an uncertainty between 0.002 and 0.003. The results are compared with
predictions based on next-to-next-to-leading-order calculations with various
parton distribution functions and have the sensitivity to discriminate between
them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables,
submitted to EPJC. All figures including auxiliary figures are available at
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13
Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector
A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of √s=13 TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV
Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector
Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √ s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT > 120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between Emiss T > 150 GeV and Emiss T > 700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presente
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Memoria ID-020 Ayudas de la Universidad de Salamanca para la innovación docente, curso 2020-2021
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