Energy & Green Tech
North Carolina State University-led researchers have developed an analytical measurement "framework" which could allow organic solar cell researchers and manufacturers to determine which materials will produce the most stable ...
Jan 11, 2021
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Consumer & Gadgets
Editor's note: MVS Chandrashekhar is a professor of electrical engineering at the University of South Carolina. In this interview, he explains how smoke detectors work and why they sometimes sound an alarm for what seems ...
Jan 8, 2021
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Engineering
An electrochemical method for stabilizing a reactive molecule can help the development of higher efficiency solar cells.
Jan 5, 2021
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Security
So much remains unknown about what is now being called the Sunburst hack, the cyberattack against U.S. government agencies and corporations. U.S. officials widely believe that Russian state-sponsored hackers are responsible.
Dec 30, 2020
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Energy & Green Tech
The world population is estimated to reach 9.5 billion by 2050. Given that most of our current energy is generated from fossil fuels, this creates significant challenges when it comes to providing enough sustainable electricity ...
Dec 23, 2020
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Energy & Green Tech
Ten years ago, if you needed a battery for something more than a flashlight or an alarm clock, your options were pretty limited. Lithium-ion batteries had found their way into consumer electronics in the 1990s, and researchers ...
Dec 15, 2020
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Security
IBM security researchers say they have detected a cyberespionage effort using targeted phishing emails to try to collect vital information on the World Health Organization's initiative for distributing COVID-19 vaccine to ...
Dec 3, 2020
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Electronics & Semiconductors
The oxygen evolution reaction (OER) is a chemical process that leads to the generation of molecular oxygen. This reaction is of key importance for the development of clean energy technologies, including water electrolyzers, ...
Business
BuzzFeed is buying HuffPost from Verizon as part of a bigger deal that has the wireless giant investing in the digital-media company.
Nov 19, 2020
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Electronics & Semiconductors
Hydrogen gas and methanol for fuel cells, or as raw materials for the chemicals industry, for example, could be produced more sustainably using sunlight, a new Uppsala University study shows. In this study, researchers have ...
Nov 18, 2020
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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
