COVID 19: Formación y convivencia de parejas durante el aislamiento.

El presente artículo es el resultado de una investigación implementada por el equipo de investigadores del laboratorio de investigación en Neurociencias y Ciencias Sociales (Lincs) y la Universidad de Flores. El estudio buscó comprender cómo el aislamiento, establecido por las políticas de salud pública a causa del COVID-19, impactó sobre la formación de parejas durante este período. El concepto de pareja, para este estudio, es considerado como la relación formal de noviazgo, que no implica necesariamente la convivencia. Para esto, se aplicó un cuestionario en línea distribuido a través de las redes sociales. Se obtuvieron datos de 2562 personas, de las cuales 276 de los encuestados no estaban en pareja durante el aislamiento. De las mismas, 129 -el 46.7%- se consolidaron como pareja durante el aislamiento. El resultado al que se arribó, es que 55 de estos sujetos además de formar pareja decidieron convivir y manifestaron un alto grado de satisfacción con su relación actual -34.5% totalmente satisfecho y 21.8% bastante satisfecho- y con la convivencia -29% totalmente satisfecho y 25.5% bastante satisfecho-. Por otra parte, de 52 encuestados, el 53.9% consideró que no fue una decisión apresurada, al contrario del 46.1% de los sujetos. Se ha concluido que, dichas relaciones, se adaptaron favorablemente a los desafíos contextuales críticos, con un nivel de satisfacción alto

Quantitative spatial distribution analysis of mafic monogenic volcanism in the southern Puna, Argentina: Implications for magma production rates and structural control during its ascent

Establishing the factors that control the pathways of magma ascent is an important issue in the study of monogenic mafic volcanism since it provides information about the relationship between the source of the ascending magma and the regional and local tectonic frameworks. We have quantitatively analyzed the spatial distribution of the volcanic centers in the monogenic volcanic fields (MVFs) of the Southern Puna using Nearest-Neighbor Analysis to assess the degree of randomness between individual centers. We also performed alignment analysis which highlights the structural weaknesses that magmas use to ascend. We integrate these novel data with published structural, petrologic, and geophysical data to propose a source-to-surface model which explains the spatial distribution of monogenic mafic centers of the Southern Puna. We find that MVFs display two distinct spatial patterns related to different magmatic production rates. Specifically, in those areas where the magmatic production is long-lasting and relatively high, the magma exerts strain rates suffciently high to reactivate pre-exisiting discontinuities with random orientations with respect to the current local stress conditions. As a result the volcanic centers are arranged with a clustered spatial distribution. We define these as MVFs controlled by magmatism or high flux fields (MVFs-M). On the other hand, low magmatic production rates tend to produce areas where mafic centers display a Poisson distribution, because strain rates are only sufficient to reactivate pre-existing discontinuities that are nearly parallel to the maximum compressive stress. This latter group is defined as MVFs controlled by tectonism or low flux fields (MVFs-T). Available petrological and geophysical data indicate that both groups are fed by a complex lower crustal MASH zone where magma production is associated with lithospheric foundering and subduction-related mantle melting. Spatial distribution of the MVFs in the Southern Puna are also affected by the development of upper crustal magma storage zones.Fil: Morfulis Geipel, Marcos Nicolas. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Baez, Walter Ariel. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Retamoso, Santiago. Universidad Nacional de Salta; ArgentinaFil: Bardelli, Lorenzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta; ArgentinaFil: Filipovich, Ruben Eduardo. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sommer, Carlos Augusto. Universidade Federal do Rio Grande do Sul; Brasi

Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)