Science technology and reaserch
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Science technology and reaserch
Various artcles about...well science technology and reaserch
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Quantum simulator gives clues about magnetism

Quantum simulator gives clues about magnetism | Science technology and reaserch | Scoop.it
Researchers optically trapped a cloud of gas a billion times colder than air in a very low-pressure vacuum, and found a lower speed limit to diffusion. Assembling the puzzles of quantum materials is, in some ways, like dipping a wire hanger into a vat of soapy water, says one of the researchers. Long before mathematical equations could explain the shapes and angles in the soap foams, mathematicians conjectured that soap films naturally found the geometry that minimized surface area, thus solving the problem of minimal surfaces. They could be created simply by blowing soap bubbles.
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Dramatic Improvements in nanogenerator power efficiency for wearable, implantable electronics

Dramatic Improvements in nanogenerator power efficiency for wearable, implantable electronics | Science technology and reaserch | Scoop.it
The energy efficiency of a new piezoelectric nanogenerator has increased by almost 40 times, one step closer toward the commercialization of flexible energy harvesters that can supply power infinitely to wearable, implantable electronic devices. Nanogenerators are innovative self-powered energy harvesters that convert kinetic energy created from vibrational and mechanical sources into electrical power, removing the need of external circuits or batteries for electronic devices. This innovation is vital in realizing sustainable energy generation in isolated, inaccessible, or indoor environments and even in the human body.
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Next gen cell phones, computers? Harnessing magnetic vortices for making nanoscale antennas

Next gen cell phones, computers? Harnessing magnetic vortices for making nanoscale antennas | Science technology and reaserch | Scoop.it
Scientists seeking ways to synchronize the magnetic spins in nanoscale devices to build tiny yet more powerful signal-generating or receiving antennas and other electronics have published a study showing that stacked nanoscale magnetic vortices separated by an extremely thin layer of copper can be driven to operate in unison. These devices could potentially produce a powerful signal that could be put to work in a new generation of cell phones, computers, and other applications.
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Engineers grow functional human cartilage in lab

Engineers grow functional human cartilage in lab | Science technology and reaserch | Scoop.it
Engineers have successfully grown -- for the first time -- fully functional human cartilage in vitro from human stem cells derived from bone marrow tissue. Their study demonstrates new ways to better mimic the enormous complexity of tissue development, regeneration, and disease.
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Surprising material could play huge role in saving energy: Tin selenide is best at converting waste heat to electricity

Surprising material could play huge role in saving energy: Tin selenide is best at converting waste heat to electricity | Science technology and reaserch | Scoop.it
One strategy for addressing the world's energy crisis is to stop wasting so much energy when producing and using it, such as in coal-fired power plants or transportation. Nearly two-thirds of energy input is lost as waste heat. Now scientists have discovered a surprising material that is the best in the world at converting waste heat to useful electricity. This outstanding property could be exploited in solid-state thermoelectric devices, with potentially enormous energy savings.
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Nanostructures with applications in infrared and terahertz ranges

Nanostructures with applications in infrared and terahertz ranges | Science technology and reaserch | Scoop.it
Scientists have created a compound semiconductor of nearly perfect quality with embedded nanostructures containing ordered lines of atoms that can manipulate light energy in the mid-infrared range. More efficient solar cells, less risky and higher resolution biological imaging, and the ability to transmit massive amounts of data at higher speeds are only a few applications that this unique semiconductor will be able to support.
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Knowledge transfer between computers: Computers teach each other Pac-Man

Knowledge transfer between computers: Computers teach each other Pac-Man | Science technology and reaserch | Scoop.it
Researchers have developed a method to allow a computer to give advice and teach skills to another computer in a way that mimics how a real teacher and student might interact. Researchers had the agents -- as the virtual robots are called -- act like true student and teacher pairs: student agents struggled to learn Pac-Man and a version of the StarCraft video game. The researchers were able to show that the student agent learned the games and, in fact, surpassed the teacher.
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Heat‐conducting polymer cools hot electronic devices at 200 degrees C

Heat‐conducting polymer cools hot electronic devices at 200 degrees C | Science technology and reaserch | Scoop.it
By harnessing an electropolymerization process to produce aligned arrays of polymer nanofibers, researchers have developed a thermal interface material able to conduct heat 20 times better than the original polymer. The material can operate at up to 200 degrees Celsius.
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Engineering materials for super-efficient nanoelectronics: Potential way to make graphene superconducting

Engineering materials for super-efficient nanoelectronics: Potential way to make graphene superconducting | Science technology and reaserch | Scoop.it
Scientists have discovered a potential way to make graphene -- a single layer of carbon atoms with great promise for future electronics -- superconducting, a state in which it would carry electricity with 100 percent efficiency.
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How light affects our brain's performance: Photic memory for executive brain responses

How light affects our brain's performance: Photic memory for executive brain responses | Science technology and reaserch | Scoop.it
It has long been known that light exerts powerful effects on the brain and on our well-being. Light is not only required for vision but is also essential for a wide range of “non-visual” functions including synchronization of our biological clock to the 24h day-night cycle. A novel photoreceptor has now been shown to be an essential component for relaying light information to a set of so-called non-visual centers in the brain. Continuous changes in light throughout the day also change us, new research suggests.
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Biostatistics approach to genetics yields new clues to roots of autism

Biostatistics approach to genetics yields new clues to roots of autism | Science technology and reaserch | Scoop.it
Researchers have developed a statistical method for genetic screens that improves the classic genome-wide association screen, and, applying to autism, have uncovered genes related to the disorder that had not been suggested in previous analyses. The scientists offer evidence that beginning treatment in infants at the first symptoms could change the course of the disease, possibly preventing the permanent “pruning” of neurons, which occurs during the first two years of life, from cementing autistic symptoms in place.
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Your memory is no video camera: It edits the past with present experiences

Your memory is no video camera: It edits the past with present experiences | Science technology and reaserch | Scoop.it
Your memory is a wily time traveler, plucking fragments of the present and inserting them into the past, reports a new study. In terms of accuracy, it's no video camera. Rather, memory rewrites the past with current information, updating your recollections with new experiences to aid survival. Love at first sight, for example, is more likely a trick of your memory than a Hollywood-worthy moment.
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Highly efficient broadband terahertz radiation from metamaterials

Highly efficient broadband terahertz radiation from metamaterials | Science technology and reaserch | Scoop.it
Scientists have demonstrated broadband terahertz wave generation using metamaterials. The discovery may help develop noninvasive imaging and sensing, and make possible terahertz-speed information communication, processing and storage.
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Nanowire bridging transistors open way to next-generation electronics

Nanowire bridging transistors open way to next-generation electronics | Science technology and reaserch | Scoop.it
Combining atoms of semiconductor materials into nanowires and structures on top of silicon surfaces shows promise for a new generation of fast, robust electronic and photonic devices. Scientists have recently demonstrated three-dimensional nanowire transistors using this approach that open exciting opportunities for integrating other semiconductors, such as gallium nitride, on silicon substrates.
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Lighting the way to graphene-based devices

Lighting the way to graphene-based devices | Science technology and reaserch | Scoop.it
A technique whereby semiconductors made from graphene and boron nitride can be charge-doped to alter their electronic properties using only visible light has been demonstrated by researchers. Graphene continues to reign as the next potential superstar material for the electronics industry, a slimmer, stronger and much faster electron conductor than silicon.
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New lab-on-a-chip device overcomes miniaturization problems

New lab-on-a-chip device overcomes miniaturization problems | Science technology and reaserch | Scoop.it
Chemists have invented a new type of tiny lab-on-a-chip device that could have a diverse range of applications, including to detect toxic gases, fabricate integrated circuits and screen biological molecules. The novel technique developed by the team involves printing a pattern of miniscule droplets of a non-volatile solvent -- an ionic liquid -- onto a gold-coated or glass surface.
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Stem cell therapy regenerates heart muscle damaged from heart attacks in primates

Stem cell therapy regenerates heart muscle damaged from heart attacks in primates | Science technology and reaserch | Scoop.it
Heart cells created from human embryonic stem cells successfully restored damaged heart muscles in monkeys, researchers report. Stem-cell derived heart muscle cells infiltrated into damaged heart tissue, assembled muscle fibers and began to beat in synchrony with macaque heart cells. Scientists are working to reduce the risk of heart rhythm problems and to see if pumping action improves.
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Thinnest membrane feasible has been produced

Thinnest membrane feasible has been produced | Science technology and reaserch | Scoop.it
A new nano-membrane made out of the 'super material' graphene is extremely light and breathable. Not only can this open the door to a new generation of functional waterproof clothing, but also to ultra-rapid filtration. The new membrane just produced is as thin as is technologically possible.
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Laboratory-grown vaginas implanted in patients

Laboratory-grown vaginas implanted in patients | Science technology and reaserch | Scoop.it
Scientists reported the first human recipients of laboratory-grown vaginal organs. They have described long-term success in four teenage girls who received vaginal organs that were engineered with their own cells.
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lloyd stanley gordon's curator insight, June 6, 2014 4:43 PM

This  very  absorbing,  and  utilitarian  technology  could  be  used  to  grow  new  sections  of the  Gastro-Intestinal  tract,the  anal  region,  also  the  mouth  and  nostrils. This  opens  up  new  possibilities  for  plastic  surgery  to  restore  badly  damaged  interiors  of  organs  such as  the  stomach,  and  the  oesophagus  when  damaged  due  to  Gastro-oesophageal Reflux  Disease  could  likewise  be  repaired.

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Fabricating nanostructures with silk could make clean rooms green rooms

Fabricating nanostructures with silk could make clean rooms green rooms | Science technology and reaserch | Scoop.it
Engineers have demonstrated that it is possible to generate nanostructures from silk in an environmentally friendly process that uses water as a developing agent and standard fabrication techniques. This approach provides a green alternative to the toxic materials commonly used in nanofabrication while delivering fabrication quality comparable to conventional synthetic polymers. Nanofabrication is at the heart of manufacture of semi-conductors and other electronic and photonic devices.
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Overcoming structural uncertainty in computer models

Overcoming structural uncertainty in computer models | Science technology and reaserch | Scoop.it
A computer model is a representation of the functional relationship between one set of parameters, which forms the model input, and a corresponding set of target parameters, which forms the model output. A true model for a particular problem can rarely be defined with certainty. The most we can do to mitigate error is to quantify the uncertainty in the model. Scientists have now offered a method to incorporate judgments into a model about structural uncertainty that results from building an 'incorrect' model.
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Outside the body our memories fail us

Outside the body our memories fail us | Science technology and reaserch | Scoop.it
New research demonstrates for the first time that there is a close relationship between body perception and the ability to remember. For us to be able to store new memories from our lives, we need to feel that we are in our own body. According to researchers, the results could be of major importance in understanding the memory problems that psychiatric patients often exhibit.
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Scientists build thinnest-possible LEDs to be stronger, more energy efficient

Scientists build thinnest-possible LEDs to be stronger, more energy efficient | Science technology and reaserch | Scoop.it
Scientists have built the thinnest-known LED that can be used as a source of light energy in electronics. The LED is based off of two-dimensional, flexible semiconductors, making it possible to stack or use in much smaller and more diverse applications than current technology allows.
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Researchers develop first single-molecule LED

Researchers develop first single-molecule LED | Science technology and reaserch | Scoop.it
The ultimate challenge in the race to miniaturize light emitting diodes (LED) has now been met: Scientists have developed the first ever single-molecule LED. The device is formed from a single polythiophene wire placed between the tip of a scanning tunneling microscope and a gold surface. It emits light only when the current passes in a certain direction.
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Energy storage in miniaturized capacitors may boost green energy technology

Energy storage in miniaturized capacitors may boost green energy technology | Science technology and reaserch | Scoop.it
"Supercapacitors" take the energy-storing abilities of capacitors (which store electrical charge that can be quickly dumped to power devices) a step further, storing a far greater charge in a much smaller package.
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