Until is a notoriously difficult temporal operator as it is both existential and universal at the same time: AUB holds at the current time instant w iff either B holds at w or there exists a time instant w in the future at which B holds and such that A holds in all the time instants between the current one and w. This “ambivalent” nature poses a significant challenge when attempting to give ded...

The Journal of Obstetrics & Gynecology of India needs the services of its readers who are experienced with publishing. One big rate-limiting step of our publication releasing its bi-monthly issues on time is the process of peer review. In the last 20 years that I have worked my way up the ladder, the darkest secret of delayed volumes has been the indifference of the peer reviewers and inordinat...

Until now, fossil fuels have played an important role in the daily life of human beings and civilization [...]