A total lunar eclipse will grace the night skies this weekend, providing longer than usual thrills for stargazers across North and South America.
Space Exploration
May 13, 2022
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3649
The so-called Doomsday Clock, created by the Bulletin of the Atomic Scientists to measure the imminent risk of nuclear conflagration, has been at 100 seconds to midnight since 2020. It's now looking increasingly out of time ...
Social Sciences
Apr 22, 2022
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40
Evolution takes place constantly, everywhere in nature. Nevertheless, it is always exciting for biologists to observe evolution "in real time." One such opportunity for observation is currently being presented by the internal ...
Plants & Animals
Mar 31, 2022
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46
Most living organisms have an internal clock which, among other things, controls the sleep-wake rhythm. The internal rhythm lasts approximately one day (circadian), i.e. about 24 hours, and is regulated by means of various ...
Plants & Animals
Mar 21, 2022
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256
We all have an internal clock but what makes us tick? Scientists at the Earlham Institute and IBM Research have developed new artificial intelligence (AI) and machine learning (ML) technology to understand how gene expression ...
Molecular & Computational biology
Aug 10, 2021
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665
Scientists have discovered how plants manage to live alongside each other in places that are dark and shady.
Plants & Animals
Jun 29, 2021
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32
Cambridge plant scientists say circadian clock genes, which enable plants to measure daily and seasonal rhythms, should be targeted in agriculture and crop breeding for higher yields and more sustainable farming.
Molecular & Computational biology
Apr 29, 2021
1
318
The "Doomsday Clock" illustrating the perils facing the planet and mankind will remain at 100 seconds to midnight this year amid the threats of the coronavirus pandemic, nuclear war and climate change.
Other
Jan 27, 2021
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15
Humans have them, so do other animals and plants. Now research reveals that bacteria too have internal clocks that align with the 24-hour cycle of life on Earth.
Cell & Microbiology
Jan 8, 2021
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273
Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different continents. The results were published in the scientific journal Nature Physics by an international collaboration ...
Astronomy
Oct 8, 2020
1
221
A circadian rhythm is a roughly-24-hour cycle in the biochemical, physiological or behavioral processes of living entities, including plants, animals, fungi and cyanobacteria (see bacterial circadian rhythms). The term "circadian", coined by Franz Halberg, comes from the Latin circa, "around," and diem or dies, "day", meaning literally "approximately one day." The formal study of biological temporal rhythms such as daily, tidal, weekly, seasonal, and annual rhythms, is called chronobiology.
Circadian rhythms are endogenously generated, and can be entrained by external cues, called Zeitgebers, the primary one of which is daylight. These rhythms allow organisms to anticipate and prepare for precise and regular environmental changes.
This text uses material from Wikipedia, licensed under CC BY-SA
