30 documents found, page 1 of 3
Serão as bolachas de arroz ou de milho, numa perspetiva de saúde pública, uma o...
Albuquerque, T.G.; Bento, A.; Silva, M.A.; Ferreira, J.; Costa, H.S.A prática dos hábitos alimentares saudáveis deve ser promovida, constituindo um alicerce essencial para a promoção da saúde pública. A escola constitui um local privilegiado para promover hábitos alimentares saudáveis e para melhorar o nível de literacia. Os lanches escolares são muitas vezes preparados pelas famílias das crianças, e por vezes apresentam uma qualidade nutricional pobre, sendo constituídos por a...
Probing spin-dependent dark matter interactions with 6 Li: CRESST Collaboration
Angloher, G.; Benato, G.; Bento, A.; Bertoldo, E.; Bertolini, A.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Di Lorenzo, S.; Einfalt, L.CRESST is one of the most prominent direct detection experiments for dark matter particles with sub- GeV/c2 mass. One of the advantages of the CRESST experiment is the possibility to include a large variety of nuclides in the target material used to probe dark matter interactions. In this work, we discuss in particular the interactions of dark matter particles with protons and neutrons of 6Li. This is now possi...
First measurements of remoTES cryogenic calorimeters: easy-to-fabricate particl...
Angloher, G.; Bharadwaj, M. R.; Dafinei, I.; Di Marco, N.; Einfalt, L.; Ferroni, F.; Fichtinger, S.; Filipponi, A.; Frank, T.; Friedl, M.; Fuss, A.Low-temperature calorimeters based on a readout via Transition Edge Sensors (TESs) and operated below $100$ mK are well suited for rare event searches with outstanding resolution and low thresholds. We present first experimental results from two detector prototypes using a novel design of the thermometer coupling denoted remoTES, which further extends the applicability of the TES technology by including a wider...
Cryogenic characterization of a $$\hbox {LiAlO}_{2}$$ crystal and new results o...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Di Lorenzo, S.; Erb, A.In this work, a first cryogenic characterization of a scintillating LiAlO2 single crystal is presented. The results achieved show that this material holds great potential as a target for direct dark matter search experiments. Three different detector modules obtained from one crystal grown at the Leibniz-Institut für Kristallzüchtung (IKZ) have been tested to study different properties at cryogenic temperatures...
New limits on the resonant absorption of solar axions obtained with a $$^\mathb...
Abdelhameed, A. H.; Bakhlanov, S. V.; Bauer, P.; Bento, A.; Bertoldo, E.; Canonica, L.; Derbin, A. V.; Drachnev, I. S.; Iachellini, N. FerreiroA search for resonant absorption of solar axions by 169Tm nuclei was carried out. A newly developed approach involving low-background cryogenic bolometer based on Tm3Al5O12 crystal was used that allowed for significant improvement of sensitivity in comparison with previous 169Tm based experiments. Themeasurements performed with 8.18 g crystal during 6.6 days exposure yielded the following limits on axion coupli...
Erratum to: Geant4-based electromagnetic background model for the CRESST dark m...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D’Addabbo, A.; Lorenzo, S. Di; Erb, A.
Exploring CE νNS with NUCLEUS at the Chooz nuclear power plant: NUCLEUS Collabo...
Angloher, G.; Ardellier-Desages, F.; Bento, A.; Canonica, L.; Erhart, A.; Ferreiro, N.; Friedl, M.; Ghete, V. M.; Hauff, D.; Kluck, H.; Langenkämper, A.Coherent elastic neutrino–nucleus scattering (CEνNS) offers a unique way to study neutrino properties and to search for new physics beyond the Standard Model. Nuclear reactors are promising sources to explore this process at low energies since they deliver large fluxes of antineutrinos with typical energies of a few MeV. In this paper, a new-generation experiment to study CEνNS is described. The NUCLEUS experim...
Geant4-based electromagnetic background model for the CRESST dark matter experi...
Abdelhameed, A. H.; Angloher, G.; Bauer, P.; Bento, A.; Bertoldo, E.; Breier, R.; Bucci, C.; Canonica, L.; D'Addabbo, A.; Lorenzo, S. Di; Erb, A.The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in CaWO4 crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The res...
Incarceration as violence: inflicting pain in Portuguese prisons
Frois, C.; Bento, A.This article sets the groundwork for understanding prison violence as a broad and interrelated phenomenon which is bound by shifting notions of legitimacy. We argue that the concept of violence can help understand how the “pains of imprisonment” are inflicted and punishment is produced in different prison settings. Drawing upon fieldwork carried out in several Portuguese prisons, we describe how unequal sets of...
Resposta da couve Tronchuda (Brassica oleracea var. costata) à aplicação de azo...
Rodrigues, M. A.; Pereira, J. A.; Arrobas, M.; Andrade, P. B.; Bento, A.Os portugueses são dos maiores apreciadores mundiais de brássicas. A couve Tronchuda é cultivada em Portugal em área superior a 1000 ha. O seu consumo é sobretudo apreciado na quadra natalícia. Neste trabalho reportam-se resultados da fertilização com azoto e boro, na forma de adubos convencionais, e da utilização de Dix10 (com 10 % N total), um fertilizante orgânico autorizado em agricultura biológica. Planta...