Energy & Green Tech
Back in May, Steven Shankland in CNET said that, for the lighting business, "the next technology is coming: OLED (organic light-emitting diode) lighting. It replaces the small, bright dots of LEDs with sheets of light that ...
Other
As an international group of agencies investigates why the Titan submersible imploded while carrying five people to the Titanic wreckage, U.S. maritime officials say they'll issue a report aimed at improving the safety of ...
Jun 27, 2023
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6
Energy & Green Tech
Organic photovoltaics are a third-generation solar cell technology made of electron donor and electron acceptor materials instead of conventional semiconductor p-n junctions. The performance of this alternative solar cell ...
Internet
A systematic review of research into the dark side of social media use has identified 46 harmful effects, ranging from physical and mental health problems to negative impacts on job and academic performance, as well as security ...
Oct 12, 2021
1
141
Engineering
Chemists and engineers find innovative ways to access water—including by pulling it out of thin air. Now, University of Chicago researchers found a way to extract even more water.
Mar 30, 2023
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338
Robotics
Science fiction novelists couldn't have come up with a crazier plot: microrobots streaming through blood or through other body fluids that are driven by light, can carry drugs to cancer cells and drop off the medication on ...
Feb 2, 2022
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63
Energy & Green Tech
A new report by Skoltech scientists and their colleagues describes an organic material for the new generation of energy storage devices, which structure follows an elegant molecular design principle. It has recently been ...
May 25, 2021
0
293
Energy & Green Tech
Note that number, 13.2 percent. Heliatek, in its research for new organic absorber materials, said it set a new organic photovoltaic (OPV) world record. A world record for what? The record is for the direct conversion of ...
Energy & Green Tech
Washington University researchers have developed a filter that treats wastewater and also generates electricity—an advance that could reshape energy use at treatment plants.
Jun 3, 2021
1
11
Energy & Green Tech
Imperial researchers are designing cheaper and more flexible solar energy materials, set to rival traditional rigid silicon panels.
Jan 12, 2017
2
25
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.
This text uses material from Wikipedia, licensed under CC BY-SA
