When people have nerve problems such as those caused by spinal injuries, they can lose the ability to feel when their bladder is full. This means that they don't know when it needs to be emptied, resulting in a build-up of pressure that can damage both the bladder and their kidneys. Now, a tiny sensor may offer a better way of assessing their condition, to see if surgery is required or if medication will suffice.
Presently, in order to observe how well the bladder is functioning, a catheter is inserted into the patient's urethra and used to fill their bladder with saline solution. This is understandably uncomfortable for the patient, plus it's claimed to provide an inaccurate picture of what's going on, as the bladder fills up much more quickly than would normally be the case.
That's why scientists at Norwegian research group SINTEF are proposing replacing the catheters with tiny pressure sensors. The current prototypes can be injected into the bladder directly through the skin, and could conceivably stay in place for months or even years, providing readings without any discomfort, and without requiring the bladder to be filled mechanically.
Patients would be able to move around normally, plus the risk of infection would reportedly be reduced. Currently readings are transmitted from the prototypes via a thin wire that extents from the senor out through the skin, although it is hoped that subsequent versions could transmit wirelessly – perhaps even to the patient's smartphone.
Next month, a clinical trial involving three spinal injury patients is scheduled to begin at Norway's Sunnaas Hospital. Down the road, plans call for trials involving 20 to 30 test subjects.
Although they're currently about to be tested in the bladder, the sensors could conceivably be used to measure pressure almost anywhere in the body.
Pour sa troisième édition TEDxToulouse met les petits plats dans les grands ! Nous vous donnons rendez-vous le samedi 24 mai 2014 au Théâtre Sorano. La ville de Toulouse nous met à disposition cette superbe salle de spectacle. Depuis près de cinquante ans, le théâtre Sorano est un lieu incontournable de la vie culturelle toulousaine. Nous sommes extrêmement honorés et chanceux que Ghislaine Gouby (directrice du théâtre) et son équipe soutiennent l’aventure TEDx.
" Below is a list featuring the 5 iPad apps that I believe are among the best in this field. I invite you to have a look and if you think I missed a good title to add to this list, please share with us in the comment form below."
A new microscopy method could enable scientists to generate snapshots of dozens of different biomolecules at once in a single human cell, a team from the Wyss Institute of Biologically Inspired Engineering at Harvard University reported Sunday in Nature Methods.
Such images could shed light on complex cellular pathways and potentially lead to new ways to diagnose disease, track its prognosis, or monitor the effectiveness of therapies at a cellular level.
Cells often employ dozens or even hundreds of different proteins and RNA molecules to get a complex job done. As a result, cellular job sites can resemble a busy construction site, with many different types of these tiny cellular workers coming and going. Today's methods typically only spot at most three or four types of these tiny workers simultaneously. But to truly understand complex cellular functions, it's important to be able to visualize most or all of those workers at once, said Peng Yin, Ph.D., a Core Faculty member at the Wyss Institute and Assistant Professor of Systems Biology at Harvard Medical School.
To capture ultrasharp images of biomolecules, they had to overcome laws of physics that stymied microscopists for most of the last century. When two objects are closer than about 200 nanometers apart — about one five-hundredth the width of a human hair — they cannot be distinguished using a traditional light microscope: the viewer sees one blurry blob where in reality there are two objects.
Since the mid-1990s, scientists have developed several ways to overcome this problem using combinations of specialized optics, special fluorescent proteins or dyes that tag cellular components.
Ralf Jungmann, Ph.D., now a Postdoctoral Fellow working with Yin at the Wyss Institute and Harvard Medical School, helped develop one of those super-resolution methods, called DNA-PAINT, as a graduate student. DNA-PAINT can create ultrasharp snapshots of up to three cellular workers at once by labeling them with different colored dyes.
To visualize cellular job sites with crews of dozens of cellular workers, Yin's team, including Jungmann, Maier Avendano, M.S., a graduate student at Harvard Medical School, and Johannes Woehrstein, a postgraduate research fellow at the Wyss Institute, modified DNA-PAINT to create a new method called Exchange-PAINT.
Exchange-PAINT relies on the fact that DNA strands with the correct sequence of letters, or nucleotides, bind specifically to partner strands with complementary sequences. The researchers label a biomolecule they want to visualize with a short DNA tag, then add to the solution a partner strand carrying a fluorescent dye that lights up only when the two strands pair up. When that partner strand binds the tagged biomolecule, it lights up, then lets go, causing the biomolecule to "blink" at a precise rate the researchers can control. The researchers use this blinking to obtain ultrasharp images.
To test Exchange-PAINT, the researchers created 10 unique pieces of folded DNA, or DNA origami, that resembled the numerals 0 through 9. These numerals could be resolved with less than 10 nanometers resolution, or one-twentieth of the diffraction limit.
The team was able to use Exchange-PAINT to capture clear images of the 10 different types of miniscule DNA origami structures in one image. They also used the method to capture detailed, ultrasharp images of fixed human cells, with each color tagging an important cellular component — microtubules, mitochondria, Golgi apparatus, or peroxisomes.
"This eleventh edition describes annual findings from the NMC Horizon Project, an ongoing research project designed to identify and describe emerging technologies likely to have an impact on learning, teaching, and creative inquiry in education. Six key trends, six significant challenges, and six emerging technologies are identified across three adoption horizons over the next one to five years, giving campus leaders and practitioners a valuable guide for strategic technology planning."
Excerpt from article by Mashable: "How each story is told is as important as the story itself," begins the promo video for Facebook's new much-hyped Paper app. The app mixes curated news feeds with your Facebook timeline to create a platform that integrates news discovery and sharing into your timeline.
With its tiled layout and gesture-based user interface, it feels very similar to Flipboard's suite of apps. We put both apps side by side to see how the two stack up. Here's how they compare:
Design: Tiles And Gestures
Both use a tiled layout that displays news in a grid. But while Flipboard's design puts content first, Paper puts Facebook first, emphasizing interacting with your Facebook friends and timeline whenever possible. Both apps rely heavily on gestures for navigation.
News: Curation vs. Aggregation
When it comes to finding and reading news, the two apps take very different approaches. Simply put, Flipboard is an aggregator while Paper is a curator. Flipboard, with its customized RSS, topic-based feeds and themed magazines, places importance on personalization first, discovery second. Paper puts discovery first, telling users what stories they should pay attention to, while emphasizing interacting with friends on Facebook. Users can subscribe to the app's topic-based news sections, create customized "magazines" based around their interests, or use the app like an RSS feed to subscribe to specific sources.
Sharing and social media integration is at the heart of any news discovery app. Unsurprisingly, social media integration with Flipboard is much more subtle, while Paper puts Facebook front and center. Facebook may be venturing into the news curation business with Paper, and it may be one of the first of many standalone apps from the social media giant, but the company is still very much emphasizing Facebook as the vehicle for news curation and discovery.
Wrapping It Up
Flipboard is great for collecting all the news you want to read from the sources you like. And if you rely on Flipboard as an aggregator, Paper won't be a replacement. Paper is more of a Facebook app than a "news" app, and it's best suited for those looking to share and discover content with friends.
Flipboard is available for web, iOS, Android, Windows Phone 8, BlackBerry, Kindle Fire and Nook. Paper is currently iPhone only..."
Facebook launched ten years ago in February 2004. Social media hasn't, doesn't and won't stay still. As Myspace rises, Friendster declines. The pattern's repeated itself a few times already, and even Google hasn't quite cracked the magic social network formula, at least not yet. The crown currently belongs to Facebook, a company that's made some big, big startup purchases on the way, although Twitter continues to pack (arguably) more influence. A whole lot has happened in the last decade, but we've tried to squeeze the more interesting parts into something a little more visual.
Run by a small group of powerful individuals (let’s call them oligarchs)
Transitions of power only occur when those in power hand it hand down to chosen successors or as a result of bloody coups
Status in the society is intensely hierarchical. Changes in status are managed carefully after interviews and testing by those responsible for correct human behaviour
The rewards to oligarchs can far exceed those of others in the country
Resources are subject to allocation and expropriation. Individuals engage in barter and black market activities to work around resource constraints
There is a constant state of war with the country battling external threats and the daily activities and goals are often meaningless
Decision making can be arbitrary and decisions are often made without consultation or explanation
The oligarchy engages in continuous propaganda. There is a black market in real information
Freedom of speech and action is tightly constrained by policies and process.
Any form of rebellion against these stringent rules results in exile or a significant loss of status and livelihood.
Sadly, countries like this are all too common in human history. Most prompt a consistent flow of refugees fleeing an environment that stifles human potential and human relationships.
How many of these characteristics apply to your organisation?
If you company was the country above, would you choose to live there? Are some of these characteristics driving engagement in your organisation?
Today more talented individuals are choosing careers that avoid the kinds of experiences listed above. They are refugees who ‘voted with their feet’ to leave dysfunctional organisations.
In a country, arbitrary decision making power used without consultation is seen as bad thing, risking unrest, poor policy outcomes and corruption. In business, it is called ‘strong management’. Many organisations are beginning to see the limits of these traditional models.
Rethink Power, Purpose and Potential
The answer is not necessarily that we should make every organisation function like a country using a political system like democracy or an anarchy. We know from looking at our own countries that these systems have real issues too. For almost all organisations that transition is too great a leap to make in one step. Few organisations that have led working in new ways are copied. However we can learn by reflecting on what refugees are seeking.
There are three transitions most people would seek in fleeing the country above, if they could. Anyone who becomes a refugee knows that the life ahead is hard and that they must put up with many new challenges. People flee to escape oppression and experience better leadership, fulfil purpose and to realise their potential.
These are the key transitions that leaders of organisations can help create to avoid that exodus:
From Power to Participation: A move from arbitrary hierarchical power to a situation where people, customers and community are respected and there is an opportunity for all to lead and contribute transparently to the discussion and the work.
From Subsistence to Purpose: Giving people the opportunity to find intrinsic meaning and to work for a purpose, not just a pay check.
From Subjugation to Potential: Recognising that everyone has the ability to contribute more if given information, flexibility, a chance to learn and the opportunity to grow.
Those three transitions don’t even require leaders to surrender final say in decisions, their hierarchies and their processes today. However, these transitions build trust and enable new conversations about how the organisation will work and the consequences of its actions. Those insights will form the basis of the next phase of transformation of the way the organisation works.
Leadership is the way to better realise human potential. Leveraging the innovation inherent in human potential is the way to improve our leadership and our organisations.
University of Utah electrical engineers fabricated the smallest plasma transistors that can withstand the high temperatures and ionizing radiation found in a nuclear reactor.
Such transistors someday might enable smartphones that take and collect medical X-rays on a battlefield, and devices to measure air quality in real time.
“These plasma-based electronics can be used to control and guide robots to conduct tasks inside the nuclear reactor,” says Massood Tabib-Azar, a professor of electrical and computer engineering.
“Microplasma transistors in a circuit can also control nuclear reactors if something goes wrong, and also could work in the event of nuclear attack.” The most commonly used type of transistor is called a metal oxide semiconductor field effect transistor, or MOSFET.
Plasma-based transistors, which use charged gases or plasma to conduct electricity at extremely high temperatures, are employed currently in light sources, medical instruments and certain displays under direct sunlight (but not plasma TVs, which are different). These microscale devices are about 500 microns long, or roughly the width of five human hairs. They operate at more than 300 volts, requiring special high-voltage sources. Standard electrical outlets in the United States operate at 110 volts.
The new devices designed by the University of Utah engineers are the smallest such microscale plasma transistors to date. They measure 1 micron to 6 microns in length, or as much as 500 times smaller than current state-of-the-art microplasma devices, and operate at one-sixth the voltage. They also can operate at temperatures up to 1,450 degrees Fahrenheit. Since nuclear radiation ionizes gases into plasma, this extreme environment makes it easier for plasma devices to operate.
“Plasmas are great for extreme environments because they are based on gases such as helium, argon and neon that can withstand high temperatures,” says Tabib-Azar. “This transistor has the potential to start a new class of electronic devices that are happy to work in a nuclear environment.”
Almost four years have passed since the first iPad went on sale in April 2010. Back then, not even the keenest optimists could have predicted the impact of the device that was then mocked as an oversized iPod Touch.
"This post is not to set the record straight with the armchair critics that litter the internet, but to provide some actual real life examples to counter what I am seeing as many people talking out of their backsides. A good teacher is still central to the learning process and it is their management that determines whether these myths have any truth to them."
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How to integrate my topics' content to my website?
Integrating your curated content to your website or blog will allow you to increase your website visitors’ engagement, boost SEO and acquire new visitors. By redirecting your social media traffic to your website, Scoop.it will also help you generate more qualified traffic and leads from your curation work.
Distributing your curated content through a newsletter is a great way to nurture and engage your email subscribers will developing your traffic and visibility.
Creating engaging newsletters with your curated content is really easy.