Playing remotely in times of crisis: a program to overcome social isolation

Objectives: This study aims to examine the feasibility of an intergenerational remote intervention program designed to promote the wellbeing and social connection of vulnerable older adults, mainly people with aphasia and dementia during the COVID‐19 pandemic in the south of Brazil. Undergraduate students were guided to lead weekly sessions of clowning, storytelling, dancing, and cooking‐ related activities for 3 months (from November/2020 to February/2021). Method: The mixed‐method design of the study addresses the implementation and feasibility of the program. Data analysis considered both quantitative—number of individuals who accepted the invitation to participate, voluntary dropouts, attendance—and qualitative data—participative observation and thematic analysis of evaluative conversations. An inclusive group of 34 older adults with stroke‐ induced cognitive impairments, dementia and individuals without any neurological conditions enrolled in the program based on social and racial equity principles. Feasibility and acceptability were addressed in terms of recruitment, implementation, remote evaluation, delivery of remote intervention, adherence, and attendance. Activities and participants' perceptions are described. Results: The initial period of the program achieved 83.7% of adherence and sustainability for additional 3 months. Preliminary results suggest feasibility and acceptability, considering formal and informal support in digital inclusion. Participatory observations describe that the structure of sessions and activities were well received. The analysis of participants' perceptions detects the thematic saliency of feelings of social connection and a sense of having learned with the group. Conclusions: Preliminary results of this study demonstrate the feasibility and acceptability of the program, pointing to its potential mental health benefits

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