Purple bacteria 'batteries' turn sewage into clean energy
You've flushed something valuable down the toilet today.
Nov 13, 2018
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905
Energy & Green Tech
You've flushed something valuable down the toilet today.
Nov 13, 2018
0
905
Engineering
Milling rice to separate the grain from the husks produces about 100 million tons of rice husk waste globally each year. Scientists searching for a scalable method to fabricate quantum dots have developed a way to recycle ...
Apr 12, 2022
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665
Energy & Green Tech
A team of researchers affiliated with several institutions in the U.S. has found a way to improve the efficiency of perovskite-based solar cells—by adding guanidinium thiocyanate to the mix. In their paper published in ...
Electronics & Semiconductors
Fiber-type solid-state supercapacitors can provide a stable power supply for next-generation wearable and flexible electronics. Typically, high charge storage and superior mechanical properties can be integrated into a single ...
Energy & Green Tech
Researchers at the Laboratory of Organic Electronics, Linköping University, have for the first time demonstrated an organic battery. It is of a type known as a 'redox flow battery," with a large capacity that can be used ...
Oct 15, 2020
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502
Business
Artificial intelligence is shaking up journalism and in the short term will cause "a fundamental change in the news ecosystem", media expert David Caswell told AFP.
Apr 20, 2024
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52
Robotics
A team of researchers from Toronto General Hospital Research Institute, Unither Bioelectronics Inc., and Techna, University Health Network, has demonstrated the feasibility of using drones to carry human organs for transplantation ...
Engineering
A Tunisian startup is developing a 3-D-printed bionic hand, hoping the affordable and solar-powered prosthetic will help amputees and other disabled people across Africa.
Nov 3, 2020
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57
Energy & Green Tech
A team of researchers from the National University of Singapore (NUS) has set a new record in the power conversion efficiency of solar cells made using perovskite and organic materials. This technological breakthrough paves ...
Jan 21, 2022
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484
Robotics
Vector-borne diseases are illnesses that can be transmitted to humans by blood-feeding insects, such as mosquitoes, ticks and fleas. Mosquitoes are known to contribute to the spread of a number of vector-borne diseases, including ...
In biology, an organism is any living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many billions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The terms "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with life on Earth. Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria. Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.
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