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

Significance of urinary incontinence, age, and consciousness level on arrival among patients with stroke

Purpose: We retrospectively investigated prognostic factors including urinary incontinence on arrival among the patients with stroke. Materials and Methods: A medical chart review was retrospectively performed for patients with stoke admitted between January 2010 and December 2010 in Ken-o Tokorozawa Hospital which had stroke care unit. The subjects were divided into a control group (functional outcome with modified Rankin scale (mRS) 0-3 at 3 months) and a poor group (severe disability or death, mRS 4-6). Results: There were 160 cases that had favorable outcome (the Control group) and 77 cases that had poor outcome (the Poor group). There were no significant differences between the two groups concerning the sex ratio, systolic blood pressure, heart rate, temperature, ratio of diabetes mellitus. However, the average age, ratio of hemorrhagic stroke, ratio of patients with a previous stroke, ratio of urinary incontinence upon admission, and duration of hospitalization in the Poor group was significantly higher than in the Control group. The Glasgow Coma Scale upon admission and ratio of hypertension in the Poor group were significantly lower than that in the Control group. Using a multiple logistic regression analysis, urinary incontinence (odds ratio, 3.17; 95% confidence interval, 1.45-6.93; P = 0.002), age (odds ratio, 1.04; 95% confidence interval, 1.01-1.07; P = 0.003) and Glasgow Coma Scale (odds ratio, 0.87; 95% confidence interval, 0.78-0.97; P = 0.01) were found to be factors independently associated with a poor outcome. Conclusion: Among the patients with strokes, the presence of urinary incontinence on arrival, the old age, and the level of consciousness are important prognostic factors. Physicians should therefore check for these factors when evaluating a patient who has experienced a stroke or suspected stroke