Electronics & Semiconductors
The molecular structure of organic semiconductors is key to the outdoor stability of organic solar cells. Molecular-level insight into one family of organic solar cell materials, known as Y-series nonfullerene acceptors (Y-NFAs), ...
Nov 6, 2023
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Security
For years, organizations have taken a defensive "castle-and-moat" approach to cybersecurity, seeking to secure the perimeters of their networks to block out any malicious actors. Individuals with the right credentials were ...
May 18, 2022
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Electronics & Semiconductors
How can I prepare myself for something I do not yet know? Scientists from the Fritz Haber Institute in Berlin and from the Technical University of Munich have addressed this almost philosophical question in the context of ...
Apr 23, 2021
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Electronics & Semiconductors
For around 10 years, smartphones and computer screens have been based on a display technology composed of so-called thin film transistors. These are inorganic transistors that require very little power, and they have proven ...
Oct 7, 2020
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Electronics & Semiconductors
Organic electronics—electronics where the active material is carbon-based—are making possible diverse new technologies ranging from sensors for monitoring cannabinoid levels in cannabis plants to lightweight, bendable ...
Jan 16, 2024
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150
Energy & Green Tech
A new method to treat sewage can efficiently convert leftover sludge to biogas, an advance that could help communities lower their waste treatment costs while helping the environment.
Nov 3, 2022
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Energy & Green Tech
In recent years, engineers worldwide have been trying to develop more sustainable technologies to produce electrical energy. One of the most promising among these solutions are organic solar cells.
Business
For two decades, global news outlets have complained internet companies are getting rich at their expense, selling advertising linked to their reports without sharing revenue.
Feb 18, 2021
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Energy & Green Tech
Declining energy resources, environmental hazards, rural and urban pollution...going green appears to be a daunting task but a single family's effort to "go green" with a small product could make a big impact.
Engineering
Many major advances in medicine, especially in neurology, have been sparked by recent advances in electronic systems that can acquire, process, and interact with biological substrates. These bioelectronic systems, which are ...
Feb 27, 2019
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153
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
