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Apr 28, 2016

DNA used to build the world’s smallest thermometer

Posted by in categories: biotech/medical, nanotechnology

DNA used in a thermometer.


A thermometer 20,000-times smaller than a human hair has been developed by researchers using DNA that is capable of measuring temperatures within living cells.

The thermometer, unveiled this week in the journal Nano Letters, was built by scientists at the University of Montreal and is expected to improve human understanding of nanotechnologies.

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Apr 28, 2016

Molecular architects: how scientists design new materials

Posted by in categories: habitats, materials

When Thomas Edison wanted a filament for his light bulb, he scoured the globe collecting thousands of candidates before settling on bamboo. (It was years before people were able to make tungsten work properly.) That’s our traditional way of getting materials. We picked up stones for axes, chopped wood for housing and carved tools out of bone.

Nano-architects design materials that can work together at very tiny scales, like these interlocking gears made of carbon tubes and benzene molecules. NASA

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Apr 28, 2016

Now, a brain map to help decode inner thoughts

Posted by in categories: biotech/medical, neuroscience

Cool


New York: Scientists have built a “semantic atlas” or a brain map that identifies areas that respond to words having similar meanings. The finding can help give voice to those who cannot speak such as victims of stroke, brain damage or motor neuron diseases.

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Apr 28, 2016

New Brain Map Shows Where Words Are Stored Inside Your Head

Posted by in categories: biotech/medical, neuroscience

New keys unlock how words are stored in our brains.


Researchers have created a new map of the human brain which shows where we organize words depending on their meaning—and it could help us read minds more accurately than ever.

Scientists from the University of California, Berkeley, have published an interactive version of the map online. It allows you to explore the whole brain, clicking around to see where different types of words—from social and spatial, to violent and visual—are stored.

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Apr 28, 2016

Math points to 100-times faster mapping of gene activity

Posted by in categories: bioengineering, biotech/medical, chemistry, mathematics

New research by UCSF scientists could accelerate – by 10 to 100-fold – the pace of many efforts to profile gene activity, ranging from basic research into how to build new tissues from stem cells to clinical efforts to detect cancer or auto-immune diseases by profiling single cells in a tiny drop of blood.

The study, published online April 27, 2016, in the journal Cell Systems, rigorously demonstrates how to extract high-quality information about the patterns of in individual cells without using expensive and time-consuming technology. The paper’s senior authors are Hana El-Samad, PhD, an associate professor of biochemistry and biophysics at UCSF, and Matt Thomson, PhD, a faculty fellow in UCSF’s Center for Systems and Synthetic Biology.

“We believe the implications are huge because of the fundamental tradeoff between depth of sequencing and throughput, or cost,” said El-Samad. “For example, suddenly, one can think of profiling a whole tumor at the single cell level.”

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Apr 28, 2016

New genetic tools to boost productivity

Posted by in categories: biotech/medical, food, genetics

There’s a precision genetic tool being put to work in crop breeding that offers benefits for future elite, high-performing crops. Pioneer is moving forward with work on a commercial hybrid.

With CRISPR-Cas it’s possible to do precision gene insertions (or deletions) in a crop genome that boost productivity or enhance other traits. This isn’t a GMO because the work done involves traits from the same species — corn gene into a corn plant, for example.

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Apr 28, 2016

These old black-and-white photos were colorized

Posted by in category: robotics/AI

Researchers at Waseda University in Tokyo have created a way to realistically colorize black-and-white photos without any human intervention for the first time ever. The team’s approach is based on convolutional neural networks — a type of machine learning originally inspired by the visual cortex of a cat.

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Apr 28, 2016

How to measure prosperity | The Economist

Posted by in categories: economics, governance

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“GDP is a bad gauge of material well-being. Time for a fresh approach”

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Apr 28, 2016

Spanish scientists create human sperm from mature skin cells in search for infertility solution

Posted by in category: biotech/medical

Scientists in Spain say they have created human sperm from skin cells, which could eventually lead to a treatment for infertility.

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Apr 28, 2016

Tiny Spacecraft to Take on Journey to Alpha Centauri

Posted by in categories: computing, engineering, space travel

Draper’s ChipSat Research Could Make Stamp-Sized Spacecraft Functional for Interstellar Mission

CAMBRIDGE, MA – Chip-sized spacecraft will be beamed about 25 trillion miles to Alpha Centauri within 20 years of launch – a mission that would otherwise take 30,000 years – thanks to an engineering project sponsored by the Breakthrough Starshot team. Since 2010, Draper and Cornell University have collaborated on research into spacecraft that could be reduced to the size of a postage stamp and dubbed “ChipSats.” While ChipSats are small and inexpensive to launch, they face challenges far different from those of larger spacecraft and require a completely different approach to space missions.

Due to their tiny size, ChipSats experience disturbances in space in a different manner from large spacecraft. Much like a dinghy is greatly affected by waves that cannot move an oil tanker, the importance of small environmental forces, such as solar radiation pressure and aerodynamic drag, is magnified for ChipSats. This represents a challenge for completing the journey to Alpha Centauri and pointing precisely to send data back to Earth. But it is also an opportunity for developing new guidance and control approaches that take advantage of the environment.

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