Tensiones identitarias y discursos conmemorativos: los ítalo-uruguayos filofascistas ante las fiestas cívicas de sus dos patrias (1918-1941)

In the interwar period, the spread of fascism in the Italo-Uruguayan community stresses the loyalty shown by migrants to the society of origin and the host society. Such tension varies as a result of the changing political contexts of both nations, and it is reflected in the press of the period, particularly in the weekly L’Italiano, since its speeches, commemorating the civic celebrations of the two countries, seek to reconcile the Italian and Uruguayan identity in the remembrance of events that allude to the pasts of one country and the other.En el período interbélico, la difusión del fascismo en la comunidad ítalo-uruguaya tensiona la lealtad que muestran los migrantes hacia la sociedad de procedencia y la sociedad receptora. Tal tensión varía como resultado de los contextos políticos cambiantes de ambas naciones y se refleja en la prensa del período, particularmente en el semanario L’Italiano, ya que sus discursos conmemorativos sobre las fiestas cívicas de las dos patrias buscan conciliar la identidad italiana y la uruguaya en la recordación de eventos que aluden a los pasados de los dos paíse

Abundance and phenology of predatory arthropods in soybean: preliminary analysis

Los artrópodos son organismos que se han adaptado a múltiples ecosistemas, incluyendo los agroecosistemas. La soja es un agroecosistema que ha sufrido una gran expansión y también la fauna acompañante. El conocimiento de esta fauna es escaso en Uruguay, fundamentalmente la de artrópodos depredadores, agentes de control biológico conservativo. En este trabajo se evaluó la fauna de depredadores de suelo en etapas fenológicas de germinación, primer nudo, floración, y llenado de grano. Se recolectó la fauna mediante trampas pitfall a lo largo y ancho del cultivo, y en zonas aledañas, con vegetación natural. Las familias predominantes fueron Lycosidae (Araneae), Carabidae (Coleoptera) y Formicidae (Hymenoptera). En general los índices de diversidad mostraron menores valores en la etapa de llenado de grano. Se encontró una interacción significativa entre el orden y la abundancia de artrópodos con una dominancia consistente de las arañas a lo largo de la mayoría de etapas fenológicas. En general, estos resultados preliminares, coinciden con otros estudios realizados a nivel regional. Se deberán muestrear otros sitios en diferentes zonas del país para evaluar si se mantiene la tendencia encontrada. Además, es necesario evaluar la eficacia de los depredadores encontrados sobre insectos-plaga de soja.Arthropods are organisms that have been able to adapt to multiple ecosystems, including agroecosystems. Soybean is an agroecosystem that has undergone great expansion and also the accompanying fauna. The knowledge of this fauna is scarce in Uruguay, mainly for native predatory arthropods, agents of conservative biological control. In the present work, the fauna of soil predators is evaluated in the phenological stages of germination, first node, flowering, and grain filling. The fauna was collected by pitfall traps throughout the crop, and in surrounding areas, with natural vegetation. The predominant families were Lycosidae (Araneae), Carabidae (Coleoptera) and Formicidae (Hymenoptera). The diversity varied across phenological stages, being lower in the grain filling stage. We also found a significant interaction between the phenological stage, and arthropod order abundance, where spiders were one of the most abundant groups. Overall,these preliminary results agree with other studies carried out in soybean and other crops. Other sites in different areas of the country should be sampled to assess whether the trend found is maintained. Furthermore, it is necessary to evaluate together with the abundance the predatory efficacy of the groups in soybean insects-plague

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Combinations of single-top-quark production cross-section measurements and vertical bar f(LV)V(tb)vertical bar determinations at root s=7 and 8 TeV with the ATLAS and CMS experiments

This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb(-1) at = 7 TeV and 12.2 to 20.3 fb(-1) at = 8 TeV. These combinations are performed per centre-of-mass energy and for each production mode: t-channel, tW, and s-channel. The combined t-channel cross-sections are 67.5 +/- 5.7 pb and 87.7 +/- 5.8 pb at = 7 and 8 TeV respectively. The combined tW cross-sections are 16.3 +/- 4.1 pb and 23.1 +/- 3.6 pb at = 7 and 8 TeV respectively. For the s-channel cross-section, the combination yields 4.9 +/- 1.4 pb at = 8 TeV. The square of the magnitude of the CKM matrix element V-tb multiplied by a form factor f(LV) is determined for each production mode and centre-of-mass energy, using the ratio of the measured cross-section to its theoretical prediction. It is assumed that the top-quark-related CKM matrix elements obey the relation |V-td|, |V-ts| << |V-tb|. All the |f(LV)V(tb)|(2) determinations, extracted from individual ratios at = 7 and 8 TeV, are combined, resulting in |f(LV)V(tb)| = 1.02 +/- 0.04 (meas.) +/- 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.Peer reviewe