Every new internal combustion car and truck sold in America today is equipped with a four-stroke engine, as are the vast ...

High-resolution cryo-electron microscopy makes it possible to study complex enzymatic processes in detail. With this method, a research team of the University of Potsdam and Humboldt-Universität ...

Researchers from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences and Columbia University ...

The luteal phase of the menstrual cycle happens right after ovulation. Learn more about symptoms, how long it lasts, and how ...

Period loss, or amenorrhea, affects approximately 3% to 4% of women of reproductive age. It can be the body’s response to an energy crisis resulting from a combination of too much exercising, too few ...

The skills needed in many roles are continually changing—and sources of talent are too.

Maximize your recruiting dollars with a step-by-step onboarding process. Our sample onboarding steps and how to create an onboarding process guide will get you started.

Long-term studies in microbial oceanography are predicated on the straightforward assertion that certain processes, such as climate-driven changes in microbial community structure and productivity ...

Kondratieff Wave, named after Russian economist Nikolai Kondratieff, refers to cycles, lasting up to 60 years, experienced by capitalist economies.

Bernhard, A. The Nitrogen Cycle: Processes, Players, and Human Impact. Nature Education Knowledge 2, 12 (2010). Bongaarts, J. Human population growth and the demographic transition.

The GA, in its resolution 77/294, declared 12 July as International Day of Combating Sand and Dust Storms to recognize that sand and dust storms cause numerous human health problems in different ...