It can be dangerous to go without sleeping, even for a day. Longer-term sleep deprivation can cause cognitive impairment, hallucinations, and other side effects. The longest recorded time without ...

Nobel Peace Prize winner and opposition leader Maria Corina Machado Venezuela announced on Monday it would close its embassy in Oslo, days after opposition leader María Corina Machado was awarded the ...

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Approximate solutions to more complex equations can be found using a process called iteration. Iteration means repeatedly carrying out a process. To solve an equation using iteration, start with an ...

Background Sedentary behaviour is associated with impaired cognition, whereas exercise can acutely improve cognition. Objective We compared the effects of a morning bout of moderate-intensity exercise ...

Nicolas Sarkozy served about three weeks of a five-year prison sentence for his conviction in a campaign finance scandal. By Ségolène Le Stradic The payments underscore how lucrative foreign political ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amy is an ACA and the CEO and founder of ...

Will ashwagandha cure my “cortisol face”? By Jessica Grose One in seven Americans has migraines. They deserve relief. By Tom Zeller Jr. Thousands missed their first paychecks this week, with no end in ...

Abstract: This article presents a novel quadratic isolated step-down converter (NQISC) that integrates a double-ended forward converter with a buck circuit to achieve a quadratic step-down feature and ...

Abstract: This paper presents an ultra-high voltage gain, quadratic-based DC-DC structure optimized for cost-effectiveness and high power density, specifically for DC microgrid applications. The ...