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Thursday, June 14, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News


'Magical state' of embryonic stem cells may help overcome hurdles to therapeutics

Posted: 13 Jun 2012 12:32 PM PDT

With their potential to treat a wide range of diseases and uncover fundamental processes that lead to those diseases, embryonic stem (ES) cells hold great promise for biomedical science. A number of hurdles, both scientific and non-scientific, however, have precluded scientists from reaching the holy grail of using these special cells to treat heart disease, diabetes, Alzheimer's and other diseases. New research shows that ES cells cycle in and out of a "magical state" in the early stages of embryo development.

Got mass? Scientists observe electrons become both heavy and speedy

Posted: 13 Jun 2012 11:54 AM PDT

Scientists have shown how electrons moving in certain solids can behave as though they are a thousand times more massive than free electrons, yet at the same time act as speedy superconductors.

Self-assembling nanocubes for next generation antennas and lenses

Posted: 13 Jun 2012 11:54 AM PDT

Researchers have developed a technique that enables metallic nanocrystals to self-assemble into larger, complex materials for next-generation antennas and lenses. The metal nanocrystals are cube-shaped and, like bricks or Tetris blocks, spontaneously organize themselves into larger-scale structures with precise orientations relative to one another.

'Extremely little' telescope discovers pair of odd planets

Posted: 13 Jun 2012 11:53 AM PDT

Though the KELT North telescope in southern Arizona carries a lens no more powerful than a high-end digital camera, it's just revealed the existence of two very unusual faraway planets.

Small planets don't need 'heavy metal' stars to form

Posted: 13 Jun 2012 11:16 AM PDT

The formation of small worlds like Earth previously was thought to occur mostly around stars rich in heavy elements such as iron and silicon. However, new ground-based observations, combined with data collected by NASA's Kepler space telescope, show small planets form around stars with a wide range of heavy element content and suggest they may be widespread in our galaxy.

Scientists see new hope for restoring vision with stem cell help

Posted: 13 Jun 2012 10:33 AM PDT

Human-derived stem cells can spontaneously form the tissue that develops into the part of the eye that allows us to see, according to a new study. Transplantation of this 3-D tissue in the future could help patients with visual impairments see clearly.

Scientists synthesize first genetically evolved semiconductor material

Posted: 13 Jun 2012 10:33 AM PDT

In the not-too-distant future, scientists may be able to use DNA to grow their own specialized materials, thanks to the concept of directed evolution. Scientists have, for the first time, used genetic engineering and molecular evolution to develop the enzymatic synthesis of a semiconductor.

Alien Earths could form earlier than expected

Posted: 13 Jun 2012 10:32 AM PDT

Previous studies have shown that Jupiter-sized gas giants tend to form around stars containing more heavy elements than the sun. However, new research found that planets smaller than Neptune are located around a wide variety of stars, including those with fewer heavy elements than the sun. As a result, rocky worlds like Earth could have formed earlier than expected in the universe's history.

NASA's NuSTAR mission lifts off

Posted: 13 Jun 2012 10:32 AM PDT

NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) launched into the morning skies over the central Pacific Ocean at 9 a.m. PDT (noon EDT) Wednesday, beginning its mission to unveil secrets of buried black holes and other exotic objects.

Northeast Passage soon free from ice again?

Posted: 13 Jun 2012 10:31 AM PDT

The Northeast Passage, the sea route along the North coast of Russia, is expected to be free of ice early again this summer. The forecast was made by sea ice physicists based on a series of measurement flights over the Laptev Sea, a marginal sea of the Arctic Ocean.

New energy source for future medical implants: Sugar

Posted: 13 Jun 2012 10:31 AM PDT

An implantable fuel cell could power neural prosthetics that help patients regain control of limbs. Engineers have developed a fuel cell that runs on the same sugar that powers human cells: glucose. This glucose fuel cell could be used to drive highly efficient brain implants of the future, which could help paralyzed patients move their arms and legs again.

Bonobo genome completed: The final great ape to be sequenced

Posted: 13 Jun 2012 10:31 AM PDT

Scientists have completed the genome of the bonobo -- the final great ape to be sequenced. Bonobos, which together with chimpanzees are the closest living relatives of humans, are known for their peaceful, playful and sexual behavior that contrasts with the more aggressive behavior of chimpanzees.

Mapping the healthy human microbiome

Posted: 13 Jun 2012 10:31 AM PDT

Human beings are ecosystems on two legs, each of us carrying enough microbes to outnumber our human cells by 10 to 1 and our genes by even more. The Human Microbiome Project Consortium has for the first time answered two fundamental questions about the microbiota that healthy humans carry: Who's there and what are they doing?

Where humans split from sharks: Common ancestor comes into focus

Posted: 13 Jun 2012 10:30 AM PDT

The common ancestor of all jawed vertebrates on Earth resembled a shark, according to a new analysis of the braincase of a 290-million-year-old fossil fish that has long puzzled paleontologists. Research on Acanthodes bronni, a Paleozoic fish, sheds light on the evolution of the earliest jawed vertebrates and offers a glimpse of the last common ancestor before the split between the earliest sharks and the first bony fishes -- the lineage that would eventually include human beings.

Nanoparticles found in moon glass bubbles explain weird lunar soil behavior

Posted: 13 Jun 2012 07:24 AM PDT

Using synchrotron-based nano tomography, scientists have found a highly porous network of alien-looking glassy particles inside unbroken bubbles of glass in a sample of lunar soil.

Robotic assistants may adapt to humans in the factory

Posted: 13 Jun 2012 07:24 AM PDT

In today's manufacturing plants, the division of labor between humans and robots is quite clear, but according experts, the factory floor of the future may host humans and robots working side by side, each helping the other in common tasks.

Inner ear may hold key to ancient primate behavior

Posted: 13 Jun 2012 07:24 AM PDT

CT scans of fossilized primate skulls or skull fragments from both the Old and New Worlds may shed light on how these extinct animals moved, especially for those species without any known remains.

No evidence for 'knots' in space: Theories of primordial universe predict existence of knots in space

Posted: 13 Jun 2012 07:22 AM PDT

Theories of the primordial universe predict the existence of knots in the fabric of space -- known as cosmic textures -- which could be identified by looking at light from the cosmic microwave background, the relic radiation left over from the Big Bang. Astronomers have performed the first search for textures on the full sky, finding no evidence for such knots in space.

Little mighty creature of the ocean inspires strong new material for medical implants and armour

Posted: 13 Jun 2012 07:21 AM PDT

A scientist may be onto an ocean of discovery because of his research into a little sea creature called the mantis shrimp. The research is likely to lead to making ceramics -- today's preferred material for medical implants and military body armour -- many times stronger. The mantis shrimp's can shatter aquarium glass and crab shells alike.

Toddler spatial knowledge boosts understanding of numbers

Posted: 13 Jun 2012 07:20 AM PDT

Children who are skilled in understanding how shapes fit together to make recognizable objects also have an advantage when it comes to learning the number line and solving math problems. The work is further evidence of the value of providing young children with early opportunities in spatial learning, which helps them mentally manipulate objects.

Dissonant music brings out the animal in listeners

Posted: 13 Jun 2012 06:10 AM PDT

Researchers have isolated some of the ways in which distorted and jarring music is so evocative, and they believe that the mechanisms are closely related to distress calls in animals.

Earlier birth, at 37 weeks, is best for twins, study suggests

Posted: 13 Jun 2012 04:30 AM PDT

Researchers say women pregnant with twins should elect to give birth at 37 weeks to avoid serious complications.

Radiation-resistant circuits from mechanical parts

Posted: 12 Jun 2012 07:12 AM PDT

Engineers have designed microscopic mechanical devices that withstand intense radiation and heat, so they can be used in circuits for robots and computers exposed to radiation in space, damaged nuclear power plants or nuclear attack.

Brain area identified that determines distance from which sound originates

Posted: 11 Jun 2012 12:31 PM PDT

Researchers have identified a portion of the brain responsible for determining how far away a sound originates, a process that does not rely solely on how loud the sound is.

The Cynical Girl: Henrietta Lacks

The Cynical Girl: Henrietta Lacks

Link to The Cynical Girl

Henrietta Lacks

Posted: 13 Jun 2012 03:45 AM PDT

Henrietta LacksHave you heard of Henrietta Lacks?

She was a poor Southern tobacco farmer who worked the same land as her slave ancestors, yet her cells—taken without her knowledge—became one of the most important tools in medicine. The first "immortal" human cells grown in culture, they are still alive today, though she has been dead for more than sixty years. If you could pile all HeLa cells ever grown onto a scale, they'd weigh more than 50 million metric tons—as much as a hundred Empire State Buildings. HeLa cells were vital for developing the polio vaccine; uncovered secrets of cancer, viruses, and the atom bomb's effects; helped lead to important advances like in vitro fertilization, cloning, and gene mapping; and have been bought and sold by the billions. Yet Henrietta Lacks remains virtually unknown, buried in an unmarked grave.

I just finished The Immortal Life of Henrietta Lacks and I cannot recommend this book enough even though I don’t know anything about science. It’s a relatively quick read and you will learn how humanity owes a debt of gratitude to a poor black woman.

That’s not a shock.

What’s shocking is how Henrietta Lacks has been monetized by all the wrong people and in the most insidious ways.

  • The Lacks family received no payment from this scientific discovery.
  • The scientists and academics who were responsible for collecting, cultivating and distributing the human cells received quite a bit of notoriety but they didn’t become wealthy from the discovery, either.
  • And Johns Hopkins denies profiting in any substantial way.

But there are smart and savvy businessmen who made a mint off the manufacturing and development of the HeLa cells. They didn’t know anything about science but understood supply chain and logistics.

It is disgusting.

I was surprised to discover business lessons in this book — but I found a few.

  • First of all, drug discovery and manufacturing is complex and expensive. I was reminded that one commercial drug is the outcome of decades of scientific research and study. And sometimes it’s the result of luck and good fortune.
  • Also, it doesn’t matter how passionate you are about something because not everyone who works hard in life — at a job, at work, etc. — will get the credit they deserve.
  • Finally, I was reminded that the free market is neither free nor fair.

Go read The Immortal Life of Henrietta Lacks and then think about your own workforce. Who truly sacrifices in your organization and who really reaps the benefits and rewards of that hard work?

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


'No-sleep energy bugs' drain smartphone batteries

Posted: 13 Jun 2012 03:40 PM PDT

Researchers have proposed a method to automatically detect a new class of software glitches in smartphones called "no-sleep energy bugs," which can entirely drain batteries while the phones are not in use.

Increased use of hand held devices may call for new photo guidelines

Posted: 13 Jun 2012 11:54 AM PDT

Viewing Facebook and Flickr photos on a smart phone are becoming common practice. But according to a recently published study, pictures on the small screen often appear distorted. Vision scientists found that perceptual distortions occur because picture takers do not take their viewing distance into account.

Got mass? Scientists observe electrons become both heavy and speedy

Posted: 13 Jun 2012 11:54 AM PDT

Scientists have shown how electrons moving in certain solids can behave as though they are a thousand times more massive than free electrons, yet at the same time act as speedy superconductors.

Self-assembling nanocubes for next generation antennas and lenses

Posted: 13 Jun 2012 11:54 AM PDT

Researchers have developed a technique that enables metallic nanocrystals to self-assemble into larger, complex materials for next-generation antennas and lenses. The metal nanocrystals are cube-shaped and, like bricks or Tetris blocks, spontaneously organize themselves into larger-scale structures with precise orientations relative to one another.

'Extremely little' telescope discovers pair of odd planets

Posted: 13 Jun 2012 11:53 AM PDT

Though the KELT North telescope in southern Arizona carries a lens no more powerful than a high-end digital camera, it's just revealed the existence of two very unusual faraway planets.

Small planets don't need 'heavy metal' stars to form

Posted: 13 Jun 2012 11:16 AM PDT

The formation of small worlds like Earth previously was thought to occur mostly around stars rich in heavy elements such as iron and silicon. However, new ground-based observations, combined with data collected by NASA's Kepler space telescope, show small planets form around stars with a wide range of heavy element content and suggest they may be widespread in our galaxy.

Scientists synthesize first genetically evolved semiconductor material

Posted: 13 Jun 2012 10:33 AM PDT

In the not-too-distant future, scientists may be able to use DNA to grow their own specialized materials, thanks to the concept of directed evolution. Scientists have, for the first time, used genetic engineering and molecular evolution to develop the enzymatic synthesis of a semiconductor.

Alien Earths could form earlier than expected

Posted: 13 Jun 2012 10:32 AM PDT

Previous studies have shown that Jupiter-sized gas giants tend to form around stars containing more heavy elements than the sun. However, new research found that planets smaller than Neptune are located around a wide variety of stars, including those with fewer heavy elements than the sun. As a result, rocky worlds like Earth could have formed earlier than expected in the universe's history.

Ancient effect harnessed to produce electricity from waste heat

Posted: 13 Jun 2012 10:32 AM PDT

A phenomenon first observed by an ancient Greek philosopher 2,300 years ago has become the basis for a new device designed to harvest the enormous amounts of energy wasted as heat each year to produce electricity. It is the first-of-its-kind "pyroelectric nanogenerator."

NASA's NuSTAR mission lifts off

Posted: 13 Jun 2012 10:32 AM PDT

NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) launched into the morning skies over the central Pacific Ocean at 9 a.m. PDT (noon EDT) Wednesday, beginning its mission to unveil secrets of buried black holes and other exotic objects.

New energy source for future medical implants: Sugar

Posted: 13 Jun 2012 10:31 AM PDT

An implantable fuel cell could power neural prosthetics that help patients regain control of limbs. Engineers have developed a fuel cell that runs on the same sugar that powers human cells: glucose. This glucose fuel cell could be used to drive highly efficient brain implants of the future, which could help paralyzed patients move their arms and legs again.

Green fuel from carbon dioxide

Posted: 13 Jun 2012 10:29 AM PDT

Scientists agree that carbon dioxide has an effect on global warming as a greenhouse gas, but we still pump tons and tons of it into the atmosphere every day. Scientists have now developed a new system for producing methanol that uses CO2 and hydrogen. Methanol can, for example, be used as an environmentally friendly alternative for gasoline. The goal of the scientists is to harness the power of CO2 on a large scale and integrate it into the utilization cycle as a sustainable form of energy production.

Nanoparticles found in moon glass bubbles explain weird lunar soil behavior

Posted: 13 Jun 2012 07:24 AM PDT

Using synchrotron-based nano tomography, scientists have found a highly porous network of alien-looking glassy particles inside unbroken bubbles of glass in a sample of lunar soil.

Robotic assistants may adapt to humans in the factory

Posted: 13 Jun 2012 07:24 AM PDT

In today's manufacturing plants, the division of labor between humans and robots is quite clear, but according experts, the factory floor of the future may host humans and robots working side by side, each helping the other in common tasks.

No evidence for 'knots' in space: Theories of primordial universe predict existence of knots in space

Posted: 13 Jun 2012 07:22 AM PDT

Theories of the primordial universe predict the existence of knots in the fabric of space -- known as cosmic textures -- which could be identified by looking at light from the cosmic microwave background, the relic radiation left over from the Big Bang. Astronomers have performed the first search for textures on the full sky, finding no evidence for such knots in space.

Little mighty creature of the ocean inspires strong new material for medical implants and armour

Posted: 13 Jun 2012 07:21 AM PDT

A scientist may be onto an ocean of discovery because of his research into a little sea creature called the mantis shrimp. The research is likely to lead to making ceramics -- today's preferred material for medical implants and military body armour -- many times stronger. The mantis shrimp's can shatter aquarium glass and crab shells alike.

Nonlinear optics: Now in the terahertz range

Posted: 13 Jun 2012 07:21 AM PDT

Researchers have recently reported on the direct observation of a nonlinear-optical effect, occurring in the regime of single-cycle pulse of light at terahertz (THz) frequencies. They used a doped semiconductor as an efficient nonlinear medium, where the THz-range optical nonlinearity arises from the response of free-electron plasma to THz electric fields.

GPS technology improves weather forecasting

Posted: 13 Jun 2012 04:31 AM PDT

The satellite-based Global Positioning System (GPS) technology that guides modern in-car navigation systems is now being used to improve weather forecasts.

Robbing banks: Crime doesn't always pay, econometrics study shows

Posted: 11 Jun 2012 04:34 PM PDT

Contrary to images of unimaginable wealth in the movies, the takings from the average bank robbery are small, according to a new report. Indeed, they often appear to be lower than the cost of installing some security devices designed to deter them.

'Game of Thrones' Showrunners, HBO Apologize for Bush's Head on Spike


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