Vip Patel is the founder of eHealthInsurance Inc., an online company in Sunnyvale, California, that markets individual and small-group health insurance products to the public. He previously worked for ...

Anthony Brandt, a musicologist whose work focuses on music cognition, talks about what this musical form and how human beings ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

This puzzle looks like it needs calculus… but you’re not allowed to use it. I explore alternative methods to get the answer only using basic math tools. 8 million inflation refund checks sent out ...

In a bold step toward deepening our understanding of the universe, Carnegie Mellon University’s Department of Physics has launched "In Theory," a Seminar Series in Theoretical Physics. This initiative ...

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IN a review in NATURE 1 it is stated that the equation of conduction of heat can be regarded only as a limiting case of an equation arising in the calculus of variations. A successful attempt has been ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

ABSTRACT: In this paper, we consider a class of damped vibration systems with super-quadratic potential. We obtain at least two nonzero periodic solutions through the minimization method and Morse ...

Abstract: In this article, we present a proper extension of the problems of classical calculus of variations and of optimal control to the case of discontinuous trajectories. An appropriate impulsive ...