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Archive for the ‘biological’ category: Page 170

Mar 21, 2017

Researchers Seek Guidelines for Embryo-Like Entities Created in Labs

Posted by in category: biological

A group of prominent researchers is calling for changes to scientific-research guidelines to address a range of new biological entities created in labs that may share similar characteristics to embryos.

These entities, created through a variety of techniques, have been studied at only the earliest stages of development. In some cases, scientists have taken cells from an embryo and manipulated them to generate another embryo-like…

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Mar 19, 2017

New Artificial Synapse Bridges the Gap to Brain-Like Computers

Posted by in categories: biological, robotics/AI

From AlphaGo’s historic victory against world champion Lee Sedol to DeepStack’s sweeping win against professional poker players, artificial intelligence is clearly on a roll.

Part of the momentum comes from breakthroughs in artificial neural networks, which loosely mimic the multi-layer structure of the human brain. But that’s where the similarity ends. While the brain can hum along on energy only enough to power a light bulb, AlphaGo’s neural network runs on a whopping 1,920 CPUs and 280 GPUs, with a total power consumption of roughly one million watts—50,000 times more than its biological counterpart.

Extrapolate those numbers, and it’s easy to see that artificial neural networks have a serious problem—even if scientists design powerfully intelligent machines, they may demand too much energy to be practical for everyday use.

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Mar 16, 2017

Warming Mars and thickening its atmosphere can be done in 10–100 years

Posted by in categories: biological, engineering, environmental, space

If all the solar incident on Mars were to be captured with 100% efficiency, then Mars would warm to Earth-like temperatures in about 10 years. However, the efficiency of the greenhouse effect is plausibly about 10%, thus the time it would take to warm Mars would be ~100 years. This assumes, of course, adequate production of super greenhouse gases over that entire time. The super greenhouse gases desired for use on Mars would be per fluorinated compounds (PFCs) as these are not toxic, do not destroy ozone, will resist degradation by ultraviolet life, and are composed of elements (C, S, and F) that are present on Mars. Fluorine has been detected on Mars by Curiosity.

The Warming Phase of a terraforming project on Mars results in a planet with a thick CO2 atmosphere. The thickness is determined by the total releasable CO2 present on Mars.

The temperatures would become well above freezing and liquid water is common. An Earth-like hydrological cycle is maintained. Photosynthetic organisms can be introduced as conditions warm and organic biomass is thus produced. A rich flora and fauna are present. A natural result of this is the biological consumption of the nitrate and perchlorate in the.

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Mar 4, 2017

Stellaris: Utopia “Path to Ascension” Release Date Reveal Trailer

Posted by in categories: biological, habitats, space

Would you like to know more? http://pdxint.at/2mvFVSx

Stellaris: Utopia brings even greater depth and variety to a game already celebrated for its story-telling power and near endless possibilities. Are you ready for perfection?

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Feb 23, 2017

Artificial intelligence in quantum systems, too

Posted by in categories: biological, quantum physics, robotics/AI

Quantum biomimetics consists of reproducing in quantum systems certain properties exclusive to living organisms. Researchers at University of the Basque Country have imitated natural selection, learning and memory in a new study. The mechanisms developed could give quantum computation a boost and facilitate the learning process in machines.

Unai Alvarez-Rodriguez is a researcher in the Quantum Technologies for Information Science (QUTIS) research group attached to the UPV/EHU’s Department of Physical Chemistry, and an expert in information technologies. Quantum information technology uses quantum phenomena to encode computational tasks. Unlike classical computation, quantum computation “has the advantage of not being limited to producing registers in values of zero and one,” he said. Qubits, the equivalent of bits in classical computation, can take values of zero, one or both at the same time, a phenomenon known as superposition, which “gives quantum systems the possibility of performing much more complex operations, establishing a computational parallel on a quantum level, and offering better results than classical computation systems,” he added.

The research group to which Alvarez-Rodriguez belongs decided to focus on imitating biological processes. “We thought it would be interesting to create systems capable of emulating certain properties exclusive of living entities. In other words, we were seeking to design protocols whose dynamics were analogous to these properties.” The processes they chose to imitate by means of quantum simulators were natural selection, memory and intelligence. This led them to develop the concept of quantum biomimetics.

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Feb 21, 2017

NI Science Festival

Posted by in categories: biological, computing, food, neuroscience, quantum physics, science, space

Combines, space, poetry, optics, stories, TV, cognitive computing, atomic food safety, astrophysics and quantum biology in a fun-packed programme for everyone.

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Feb 20, 2017

Tiny 3D-printed lenses will help robots see like eagles

Posted by in categories: 3D printing, biological, robotics/AI

In many ways, the human eye is nothing like a digital camera. Our eyes don’t have a fixed frame rate or resolution; there’s no consistent color reproduction, and we have literal, sizable blind spots. But, these optic inconsistencies — found in every biological eye — are the product of natural selection, and offer a number of benefits which scientists working in digital vision can take advantage of.

Case in point is a new type of 3D-printed lens created by researchers from the University of Stuttgart in Germany. Each lens is made from plastic and is no bigger than a grain of salt. But, their size is only one aspect of their cleverness. The real innovation here is that the lenses mimic the action of the “fovea,” a key physiological feature of the eyes of humans and eagles, that allows for for speedier image processing.

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Feb 16, 2017

High-res biomolecule imaging

Posted by in categories: biological, engineering, nanotechnology

Nice.


CAMBRIDGE, Mass. — Determining the exact configuration of proteins and other complex biological molecules is an important step toward understanding their functions, including how they bind with receptors in the body. But such imaging is difficult to do. It usually requires the molecules to be crystallized first so that X-ray diffraction techniques can be applied — and not all such molecules can be crystallized.

Now, a new method developed by researchers at MIT could lead to a way of producing high-resolution images of individual biomolecules without requiring crystallization, and it could even allow zoomed-in imaging of specific sites within the molecules. The technique could also be applied to imaging other kinds of materials, including two-dimensional materials and nanoparticles.

The findings are reported this week in the Proceedings of the National Academy of Sciences, in a paper by Paola Cappellaro, the Esther and Harold E. Edgerton Associate Professor of Nuclear Science and Engineering at MIT, and others at MIT and at the Singapore University of Technology and Design.

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Feb 16, 2017

RadioBio research effort aims to find the role of electromagnetic signaling in biological systems

Posted by in categories: biological, quantum physics

More on DARPA’s Quantum Biosystem program “RadioBio”
During Phase 1, performers will be asked to theoretically model and simulate hypothesized electromagnetic signaling pathways and then experimentally test those theoretical predictions.

In Phase 2, the goal would be to independently develop test beds to replicate, confirm, and demonstrate the pathways modeled in Phase 1 and reveal design principles potentially relevant to biological or other applications aka can we enable human to human communication without a device.


ARLINGTON, Va. Defense Advanced Research Projects Agency (DARPA) officials launched a new program that seeks to establish if purposeful electromagnetic wave signaling between biological cells exists — and if evidence supports that it does — to determine what information is being transferred.

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Feb 15, 2017

An algae that survived two years in outer space may hold the secret to growing food on Mars

Posted by in categories: biological, food, space

Humans won’t survive on Mars for very long if they don’t learn to grow their own food. That’s why we need to answer the question: What, if anything, can grow on the red planet?

A two-year experiment on the International Space Station (ISS) gives us some hints. A species of green algae and photosynthesizing bacteria have survived their 450-day stay in outer space. All but one of the algae samples started growing after being returned to Earth.

The experiment was part of the Biology and Mars Experiment (BIOMEX) to understand to what extent terrestrial life can survive in space. It involved a series of pockets where hundreds of specimens of bacteria, fungi, lichens, algae, and mosses were exposed to conditions of near vacuum, temperatures between −4 °F (−20 °C) and 116 °F (47 °C), and a continuous blast of ultraviolet radiation.

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