Results 51 to 60 of about 17,312,778 (333)

New-Onset Post-Operative Atrial Fibrillation in Patients Undergoing Coronary Artery Bypass Grafting Surgery - A Retrospective Case-Control Study [PDF]

open access: yesBrazilian Journal of Cardiovascular Surgery, 2022
Introduction: New-onset postoperative atrial fibrillation (POAF) is a common complication following coronary artery bypass grafting (CABG) surgery. Objective: To explore predictive factors and potential mechanisms of new-onset POAF in isolated off-pump ...
Xuehui Cui   +6 more
doaj   +1 more source

Double Happiness: Enhancing the Coupled Gains of L-lag Coupling via Control Variates. [PDF]

open access: yes, 2020
The recently proposed L-lag coupling for unbiased MCMC \citep{biswas2019estimating, jacob2020unbiased} calls for a joint celebration by MCMC practitioners and theoreticians.
Radu V. Craiu, Xiao-Li Meng
semanticscholar   +1 more source

Being a morning man has causal effects on the cerebral cortex: a Mendelian randomization study

open access: yesFrontiers in Neuroscience, 2023
IntroductionNumerous studies have suggested a connection between circadian rhythm and neurological disorders with cognitive and consciousness impairments in humans, yet little evidence stands for a causal relationship between circadian rhythm and the ...
Fan Yang   +14 more
doaj   +1 more source

Optimal Control of Variational Inequalities [PDF]

open access: yesCommunications in Information and Systems, 2010
We consider control problems for the variational inequality describing a single degree of freedom elasto-plastic oscillator. We are particularly interested in finding the "critical excitation", i.e., the lowest energy input excitation that drives the system between the prescribed initial and final states within a given time span.
Bensoussan, Alain   +2 more
openaire   +2 more sources

Association of vitamin D receptor gene variants with polycystic ovary syndrome: a meta-analysis

open access: yesBMC Medical Genetics, 2019
Background Polycystic ovary syndrome (PCOS) is a common endocrine disorder in reproductive-age women. Multiple susceptible gene as well as environmental factors and their interaction each other are contributed to the PCOS risk.
Xiao-Yuan Shi   +3 more
doaj   +1 more source

Relative Variational Intrinsic Control

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
In the absence of external rewards, agents can still learn useful behaviors by identifying and mastering a set of diverse skills within their environment. Existing skill learning methods use mutual information objectives to incentivize each skill to be diverse and distinguishable from the rest.
Kate Baumli   +3 more
openaire   +2 more sources

Control Variates for Probability and Quantile Estimation [PDF]

open access: yes, 1997
In stochastic systems, quantiles indicate the level of system performance that can be delivered with a specified probability, while probabilities indicate the likelihood that a specified level of system performance can be achieved.
Timothy C. Hesterberg, Barry L. Nelson
core   +1 more source

Estimating simulation metamodels using correlated control variates

open access: yes, 2010
[[abstract]]© 1995 Taylor & Francis - This paper develops a variance reduction technique that applies correlated control variates in a simulation experiment to estimate linear regression metamodels.
Neng Hui Shih;Wheyming Tina song
core   +1 more source

Placental OPRM1 DNA methylation and associations with neonatal opioid withdrawal syndrome, a pilot study

open access: yesExploration of Medicine, 2020
Aim: Epigenetic variation of DNA methylation of the mu-opioid receptor gene (OPRM1) has been identified in the blood and saliva of individuals with opioid use disorder (OUD) and infants with neonatal opioid withdrawal syndrome (NOWS).
Elisha M. Wachman   +8 more
doaj   +1 more source

The Impact of Promoting Alternative Thinking Strategies (PATHS) on Loneliness in Primary School Children: Results From a Randomized Controlled Trial in England

open access: yesFrontiers in Education, 2021
Research suggests that loneliness during childhood is associated with poor well-being and mental ill-health. There is a growing social and educational imperative to explore how school-based interventions can support young children’s social development ...
Alexandra Hennessey   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy