Why becoming truly great requires more than just good instincts.

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“If our performers – players, singers, and conductors alike – had a better insight into the essentials of musical scores, we would not be faced with what seems to have become almost a rule in the superficially over-polished performances of today: either the rattling through of a piece without any reasonable articulation, without any deeper penetration into its character, tempo, expression, meaning, and effect – or the hyper-individualistic distortion of the ideas expressed in a composer’s score.”

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The Nicholson Center at Florida Hospital, which trains doctors to use the latest medical technology, including robots, has been testing the latency between communication-rich environments, such as hospital campuses.


Early results have led researchers to a conclusion that is either astounding or not at all surprising, depending on the depth of your knowledge about network latency and the recent progress of robotic surgery. It turns out that telesurgery, in which a surgeon in one location performs an operation in another with the aid of a robot, could quite easily be practiced today with existing technology. I, for one, was astounded.


We didn’t know if we could stay below the necessary thresholds in terms of latency,” says Dr. Roger Smith, CTO of the Nicholson Center, referring to the delay between the moment information is transmitted and the moment it is received. “But it turns out that today’s internet has no trouble beating those thresholds. So the barrier to telesurgery really isn’t in the technology, but elsewhere.”


The burgeoning field of robotic surgery is dominated by Intuitive Surgical, which makes the da Vinci Surgical System. Intuitive received FDA clearance for the da Vinci in 2000, though at that time it wasn’t clear how readily surgeons would adopt the new technology or how patients would react to it. But the da Vinci proved its usefulness early on by reducing complications associated with prostate removal. Because of the position of the prostate, surgeons have to enter through the abdomen and then tunnel down to reach it. The invasiveness of the procedure carries high risks, and two common complications are incontinence and impotence. The da Vinci uses long pencil-like rods in place of a surgeon’s hands, meaning surgeries performed with it are less invasive and significantly reducing complications and recovery times.


Hundreds of thousands of surgeries are now conducted with da Vinci systems each year–virtually every prostate patient with a choice opts for it–and robotic surgery has quickly passed the crucial adoption threshold. Intuitive Surgical now has an $18.2B market cap. Interestingly, many of the patents that Intuitive acquired when constructing the da Vinci came from tech developed with funding from the Department of Defense. It makes sense. The military has a huge interest in robotic surgery. In combat, evacuating casualties to a state of the art medical facility can be exceedingly difficult. But neither is it practical to staff combat hospitals with the necessary array of surgical specialists. The best answer seems to lie in a robotic surgical device that can be operated remotely by an expert surgeon who is perhaps based hundreds of miles away. The da Vinci was a major step toward that vision, but it’s taken longer to clear the network hurdles necessary to make remote surgery viable.


Sourced through Scoop.it from: www.zdnet.com

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There once was a time where everything you needed to know for your career was taught to you by the educational institution you attended and the company you worked for. You would go get your four year bachelor’s degree in whatever topic and that information would stay with you for a little while, then you would periodically take some additional classes offered through your company.


Today by the time you graduate with a four year college degree most of the information you will learn will be outdated and perhaps obsolete.


The world has changed and it’s up to us as individuals (and as companies) to make sure that we can change too. Organizations must enable employees by deploying the right technologies to connect people and by supporting employees and allowing them learn outside of the company. Individuals must get rid of all excuses and understand that they can learn anything they want anytime they want to learn it.


Learn more:


https://gustmees.wordpress.com/2015/07/19/learning-path-for-professional-21st-century-learning-by-ict-practice/


https://gustmees.wordpress.com/2014/10/03/design-the-learning-of-your-learners-students-ideas/


Sourced through Scoop.it from: www.forbes.com

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Google has many different sources of revenue, but one of their most noticeable is the ads that appear next to search results for specific keywords. How much that keyword costs depends, in part, on how often people search for it — the more people search for a certain keyword, the more expensive it is.

Sourced through Scoop.it from: blog.hubspot.com

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Physicists have created a so-called magnetic wormhole that transports a magnetic field from one point to the other without being detected.

Ripped from the pages of a sci-fi novel, physicists have crafted a wormhole that tunnels a magnetic field through space. “This device can transmit the magnetic field from one point in space to another point, through a path that is magnetically invisible,” said study co-author Jordi Prat-Camps, a doctoral candidate in physics at the Autonomous University of Barcelona in Spain. “From a magnetic point of view, this device acts like a wormhole, as if the magnetic field was transferred through an extra special dimension.” 


The idea of a wormhole comes from Albert Einstein’s theories. In 1935, Einstein and colleague Nathan Rosen realized that the general theory of relativity allowed for the existence of bridges that could link two different points in space-time. Theoretically these Einstein-Rosen bridges, or wormholes, could allow something to tunnel instantly between great distances (though the tunnels in this theory are extremely tiny, so ordinarily wouldn’t fit a space traveler). So far, no one has found evidence that space-time wormholes actually exist.


The new wormhole isn’t a space-time wormhole per se, but is instead a realization of a futuristic “invisibility cloak” first proposed in 2007 in the journal Physical Review Letters. This type of wormhole would hide electromagnetic waves from view from the outside. The trouble was, to make the method work for light required materials that are extremely impractical and difficult to work with, Prat said.


But it turned out the materials to make a magnetic wormhole already exist and are much simpler to come by. In particular, superconductors, which can carry high levels of current, or charged particles, expel magnetic field lines from their interiors, essentially bending or distorting these lines. This essentially allows the magnetic field to do something different from its surrounding 3D environment, which is the first step in concealing the disturbance in a magnetic field.


So the team designed a three-layer object, consisting of two concentric spheres with an interior spiral-cylinder. The interior layer essentially transmitted a magnetic field from one end to the other, while the other two layers acted to conceal the field’s existence.

The inner cylinder was made of a ferromagnetic mu-metal. Ferromagnetic materials exhibit the strongest form of magnetism, while mu-metals are highly permeable and are often used for shielding electronic devices.

A thin shell made up of a high-temperature superconducting material called yttrium barium copper oxide lined the inner cylinder, bending the magnetic field that traveled through the interior.  The final shell was made of another mu-metal, but composed of 150 pieces cut and placed to perfectly cancel out the bending of the magnetic field by the superconducting shell. The whole device was placed in a liquid nitrogen bath in order to work. Normally, magnetic field lines radiate out from a certain location and decay over time, but the presence of the magnetic field should be detectable from points all around it. However, the new magnetic wormhole funnels the magnetic field from one side of the cylinder to another so that it is “invisible” while in transit, seeming to pop out of nowhere on the exit side of the tube, the researchers report today (Aug. 20, 2015) in the journal Scientific Reports.

Sourced through Scoop.it from: www.livescience.com

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