Thursday, November 6, 2014

Crowdsourcing Project Predicts Progression of ALS

Using data from old clinical trials, two groups of researchers have found a better way to predict how amyotrophic lateral sclerosis (ALS) progresses in different patients. The winning algorithms—designed by non-ALS experts—outperformed the judgments of a group of ALS clinicians given the same data. The advances could make it easier to test whether new drugs can slow the fatal neurodegenerative disease. For the competition, participants were given just a slice of this data set, collected over 3 months, and asked to design an algorithm to predict how patients would fare in the subsequent 9 months, according to a standard functional scale that measures their ability to move and care for themselves. When predictions from the two winning algorithms were combined, they outperformed estimates solicited from a dozen ALS clinicians who pored over the same data, the authors report. They estimate that using these algorithms to predict outcomes could allow a drug sponsor to reduce the size of the trial by at least 20% and save as much as $6 million in a large phase III trial.

TEDx: 10 Places Where Anyone Can Learn To Code by Jessica Gross

http://blog.ted.com/2013/01/29/10-places-where-anyone-can-learn-to-code/

  1. At Codecademy, you can take lessons on writing simple commands in JavaScript, HTML and CSS, Python and Ruby. (See this New York Times piece from last March, on Codecademy and other code-teaching sites, for a sense of the landscape.)
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  2. One of many programs geared toward females who want to code, Girl Develop It is an international nonprofit that provides mentorship and instruction. “We are committed to making sure women of all ages, races, education levels, income, and upbringing can build confidence in their skill set to develop web and mobile applications,” their website reads. “By teaching women around the world from diverse backgrounds to learn software development, we can help women improve their careers and confidence in their everyday lives.”
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  3. Stanford University’s Udacity is one of many sites that make college courses—includingIntroduction to Computer Science—available online for free. (See our post on free online courses for more ideas.)
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  4. If college courses seem a little slow, consider Code Racer, a “multi-player live coding game.” Newbies can learn to build a website using HTML and CSS, while the more experienced can test their adeptness at coding.
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  5. The Computer Clubhouse, which Resnick co-founded, works to “help young people from low-income communities learn to express themselves creatively with new technologies,” as he describes. According to Clubhouse estimates, more than 25,000 kids work with mentors through the program every year.
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  6. Through CoderDojo’s volunteer-led sessions, young people can learn to code, go on tours of tech companies and hear guest speakers. (Know how to code? You can set up your own CoderDojo!)
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  7. Code School offers online courses in a wide range of programming languages, design and web tools.
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  8. Similarly, Treehouse (the parent site of Code Racer) provides online video courses and exercises to help you learn technology skills.
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  9. Girls Who Code, geared specifically toward 13- to 17-year-old girls, pairs instruction and mentorship to “educate, inspire and equip” students to pursue their engineering and tech dreams. “Today, just 3.6% of Fortune 500 companies are led by women, and less than 10% of venture capital-backed companies have female founders. Yet females use the internet 17% more than their male counterparts,” the website notes.
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  10. Through workshops for young girls of color, Black Girls Code aims to help address the “dearth of African-American women in science, technology, engineering and math professions,” founder Kimberly Bryant writes, and build “a new generation of coders, coders who will become builders of technological innovation and of their own futures.”

Tuesday, November 4, 2014

Melissa Marshall: Talk nerdy to me



Five years ago, I experienced a bit of what it must have been like to be Alice in Wonderland. Penn State asked me, a communications teacher, to teach a communications class for engineering students. And I was scared. (Laughter) Really scared. Scared of these students with their big brains and their big books and their big, unfamiliar words. But as these conversations unfolded, I experienced what Alice must have when she went down that rabbit hole and saw that door to a whole new world. That's just how I felt as I had those conversations with the students. I was amazed at the ideas that they had, and I wanted others to experience this wonderland as well. And I believe the key to opening that door is great communication.

We desperately need great communication from our scientists and engineers in order to change the world. Our scientists and engineers are the ones that are tackling our grandest challenges, from energy to environment to health care, among others, and if we don't know about it and understand it, then the work isn't done, and I believe it's our responsibility as non-scientists to have these interactions. But these great conversations can't occur if our scientists and engineers don't invite us in to see their wonderland.So scientists and engineers, please, talk nerdy to us.

I want to share a few keys on how you can do that to make sure that we can see that your science is sexy and that your engineering is engaging. First question to answer for us: so what? Tell us why your science is relevant to us. Don't just tell me that you study trabeculae, but tell me that you study trabeculae, which is the mesh-like structure of our bones because it's important to understanding and treating osteoporosis.

And when you're describing your science, beware of jargon. Jargon is a barrier to our understanding of your ideas. Sure, you can say "spatial and temporal," but why not just say "space and time," which is so much more accessible to us? And making your ideas accessible is not the same as dumbing it down.Instead, as Einstein said, make everything as simple as possible, but no simpler. You can clearly communicate your science without compromising the ideas. A few things to consider are having examples, stories and analogies. Those are ways to engage and excite us about your content. And when presenting your work, drop the bullet points. Have you ever wondered why they're called bullet points? (Laughter) What do bullets do? Bullets kill, and they will kill your presentation. A slide like this is not only boring, but it relies too much on the language area of our brain, and causes us to become overwhelmed.Instead, this example slide by Genevieve Brown is much more effective. It's showing that the special structure of trabeculae are so strong that they actually inspired the unique design of the Eiffel Tower. And the trick here is to use a single, readable sentence that the audience can key into if they get a bit lost,and then provide visuals which appeal to our other senses and create a deeper sense of understanding of what's being described.

So I think these are just a few keys that can help the rest of us to open that door and see the wonderland that is science and engineering. And because the engineers that I've worked with have taught me to become really in touch with my inner nerd, I want to summarize with an equation. (Laughter) Take your science, subtract your bullet points and your jargon, divide by relevance, meaning share what's relevant to the audience, and multiply it by the passion that you have for this incredible work that you're doing,and that is going to equal incredible interactions that are full of understanding. And so, scientists and engineers, when you've solved this equation, by all means, talk nerdy to me. (Laughter) Thank you. 
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Sunday, November 2, 2014

SoulPancake


Rainn Wilson (who played Dwight in U.S. TV show The Office) has a wonderful website, SoulPancake that deals with many issues we cover in this module, and is well worth visiting:

Tuesday, October 28, 2014

1,000 Years of Scientific Texts From The Islamic World Are Now Online


Between the 9th and 19th centuries, Arabic-speaking scholars translated Greek, Latin and even Sanskrit texts on topics such as medicine, mathematics and astronomy, fostering a vibrant scientific culture within the Islamic world. Some of the most influential texts are now available at the Qatar Digital Library.
The library, a joint project of the British Library and the Qatar Foundation, offers free access to 25,000 pages of medieval Islamic manuscripts. Among some of the most significant texts The Book of Knowledge of Ingenious Mechanical Devices (1206 A.D.), which was inspired by an earlier, 9th-century translation of Archimedes' writings on water clocks. Devices such as the "Elephant Clock" (pictured below) were the most accurate time-keeping pieces before the first pendulum clocks were built in the 17th century by the Dutch scientist Christiaan Huygens.

Wednesday, October 22, 2014

Paralyzed Man Walks Again After Brain Cells Are Injected into His Spine


Back in 2010, Darek Fidyka became paralyzed from the waist down after suffering stab wounds to his back. Now, after 19 months of treatment in which cells from his brain were transplanted into his spinal column, he can walk with a frame. Researchers are calling it a "historic breakthrough."
The new technique, the details of which now appear in the latest edition of Cell Transplantation, involve olfactory ensheathing cells (OECs), which come from a part of our brains that deals with the sense of smell. By transplanting them into Fidyka's spinal column, the neurologists were able to construct a "nerve bridge" between two stumps of the damaged spinal column.
"We believe... this procedure is the breakthrough which, as it is further developed, will result in a historic change in the currently hopeless outlook for people disabled by spinal cord injury," noted the study's lead author Geoffrey Raisman in a Reuters article. He's currently a professor at University College London's (UCL) institute of neurology.
Fidyka, who's 38 years old, has recovered some voluntary movement and some sensation in his legs. He's continuing to improve more than predicted, and he's now able to drive and live more independently.
More here:

Tuesday, October 21, 2014

Isaac Asimov: On Creativity


How do people get new ideas?

Presumably, the process of creativity, whatever it is, is essentially the same in all its branches and varieties, so that the evolution of a new art form, a new gadget, a new scientific principle, all involve common factors. We are most interested in the “creation” of a new scientific principle or a new application of an old one, but we can be general here.

One way of investigating the problem is to consider the great ideas of the past and see just how they were generated. Unfortunately, the method of generation is never clear even to the “generators” themselves.

But what if the same earth-shaking idea occurred to two men, simultaneously and independently? Perhaps, the common factors involved would be illuminating. Consider the theory of evolution by natural selection, independently created by Charles Darwin and Alfred Wallace.

There is a great deal in common there. Both traveled to far places, observing strange species of plants and animals and the manner in which they varied from place to place. Both were keenly interested in finding an explanation for this, and both failed until each happened to read Malthus’s “Essay on Population.”

Both then saw how the notion of overpopulation and weeding out (which Malthus had applied to human beings) would fit into the doctrine of evolution by natural selection (if applied to species generally).

Obviously, then, what is needed is not only people with a good background in a particular field, but also people capable of making a connection between item 1 and item 2 which might not ordinarily seem connected.

Undoubtedly in the first half of the 19th century, a great many naturalists had studied the manner in which species were differentiated among themselves. A great many people had read Malthus. Perhaps some both studied species and read Malthus. But what you needed was someone who studied species, read Malthus, and had the ability to make a cross-connection.

That is the crucial point that is the rare characteristic that must be found. Once the cross-connection is made, it becomes obvious. Thomas H. Huxley is supposed to have exclaimed after reading On the Origin of Species, “How stupid of me not to have thought of this.”

But why didn’t he think of it? The history of human thought would make it seem that there is difficulty in thinking of an idea even when all the facts are on the table. Making the cross-connection requires a certain daring. It must, for any cross-connection that does not require daring is performed at once by many and develops not as a “new idea,” but as a mere “corollary of an old idea.”

It is only afterward that a new idea seems reasonable. To begin with, it usually seems unreasonable. It seems the height of unreason to suppose the earth was round instead of flat, or that it moved instead of the sun, or that objects required a force to stop them when in motion, instead of a force to keep them moving, and so on.

A person willing to fly in the face of reason, authority, and common sense must be a person of considerable self-assurance. Since he occurs only rarely, he must seem eccentric (in at least that respect) to the rest of us. A person eccentric in one respect is often eccentric in others.

Consequently, the person who is most likely to get new ideas is a person of good background in the field of interest and one who is unconventional in his habits. (To be a crackpot is not, however, enough in itself.)

Once you have the people you want, the next question is: Do you want to bring them together so that they may discuss the problem mutually, or should you inform each of the problem and allow them to work in isolation?

My feeling is that as far as creativity is concerned, isolation is required. The creative person is, in any case, continually working at it. His mind is shuffling his information at all times, even when he is not conscious of it. (The famous example of Kekule working out the structure of benzene in his sleep is well-known.)

The presence of others can only inhibit this process, since creation is embarrassing. For every new good idea you have, there are a hundred, ten thousand foolish ones, which you naturally do not care to display.

Nevertheless, a meeting of such people may be desirable for reasons other than the act of creation itself.

No two people exactly duplicate each other’s mental stores of items. One person may know A and not B, another may know B and not A, and either knowing A and B, both may get the idea—though not necessarily at once or even soon.

Furthermore, the information may not only be of individual items A and B, but even of combinations such as A-B, which in themselves are not significant. However, if one person mentions the unusual combination of A-B and another unusual combination A-C, it may well be that the combination A-B-C, which neither has thought of separately, may yield an answer.

It seems to me then that the purpose of cerebration sessions is not to think up new ideas but to educate the participants in facts and fact-combinations, in theories and vagrant thoughts.

But how to persuade creative people to do so? First and foremost, there must be ease, relaxation, and a general sense of permissiveness. The world in general disapproves of creativity, and to be creative in public is particularly bad. Even to speculate in public is rather worrisome. The individuals must, therefore, have the feeling that the others won’t object.

If a single individual present is unsympathetic to the foolishness that would be bound to go on at such a session, the others would freeze. The unsympathetic individual may be a gold mine of information, but the harm he does will more than compensate for that. It seems necessary to me, then, that all people at a session be willing to sound foolish and listen to others sound foolish.

If a single individual present has a much greater reputation than the others, or is more articulate, or has a distinctly more commanding personality, he may well take over the conference and reduce the rest to little more than passive obedience. The individual may himself be extremely useful, but he might as well be put to work solo, for he is neutralizing the rest.

The optimum number of the group would probably not be very high. I should guess that no more than five would be wanted. A larger group might have a larger total supply of information, but there would be the tension of waiting to speak, which can be very frustrating. It would probably be better to have a number of sessions at which the people attending would vary, rather than one session including them all. (This would involve a certain repetition, but even repetition is not in itself undesirable. It is not what people say at these conferences, but what they inspire in each other later on.)

For best purposes, there should be a feeling of informality. Joviality, the use of first names, joking, relaxed kidding are, I think, of the essence—not in themselves, but because they encourage a willingness to be involved in the folly of creativeness. For this purpose I think a meeting in someone’s home or over a dinner table at some restaurant is perhaps more useful than one in a conference room.

Probably more inhibiting than anything else is a feeling of responsibility. The great ideas of the ages have come from people who weren’t paid to have great ideas, but were paid to be teachers or patent clerks or petty officials, or were not paid at all. The great ideas came as side issues.

To feel guilty because one has not earned one’s salary because one has not had a great idea is the surest way, it seems to me, of making it certain that no great idea will come in the next time either.

Yet your company is conducting this cerebration program on government money. To think of congressmen or the general public hearing about scientists fooling around, boondoggling, telling dirty jokes, perhaps, at government expense, is to break into a cold sweat. In fact, the average scientist has enough public conscience not to want to feel he is doing this even if no one finds out.

I would suggest that members at a cerebration session be given sinecure tasks to do—short reports to write, or summaries of their conclusions, or brief answers to suggested problems—and be paid for that; the payment being the fee that would ordinarily be paid for the cerebration session. The cerebration session would then be officially unpaid-for and that, too, would allow considerable relaxation.

I do not think that cerebration sessions can be left unguided. There must be someone in charge who plays a role equivalent to that of a psychoanalyst. A psychoanalyst, as I understand it, by asking the right questions (and except for that interfering as little as possible), gets the patient himself to discuss his past life in such a way as to elicit new understanding of it in his own eyes.

In the same way, a session-arbiter will have to sit there, stirring up the animals, asking the shrewd question, making the necessary comment, bringing them gently back to the point. Since the arbiter will not know which question is shrewd, which comment necessary, and what the point is, his will not be an easy job.

As for “gadgets” designed to elicit creativity, I think these should arise out of the bull sessions themselves. If thoroughly relaxed, free of responsibility, discussing something of interest, and being by nature unconventional, the participants themselves will create devices to stimulate discussion.

http://www.technologyreview.com/view/531911/isaac-asimov-mulls-how-do-people-get-new-ideas/


Thursday, March 13, 2014

Angela Lee Duckworth: The key to success? Grit





When I was 27 years old, I left a very demanding job in management consulting for a job that was even more demanding: teaching. I went to teach seventh graders math in the New York City public schools. And like any teacher, I made quizzes and tests. I gave out homework assignments. When the work came back, I calculated grades.

What struck me was that I.Q. was not the only difference between my best and my worst students. Some of my strongest performers did not have stratospheric I.Q. scores. Some of my smartest kids weren't doing so well.

And that got me thinking. The kinds of things you need to learn in seventh grade math, sure, they're hard: ratios, decimals, the area of a parallelogram. But these concepts are not impossible, and I was firmly convinced that every one of my students could learn the material if they worked hard and long enough.

After several more years of teaching, I came to the conclusion that what we need in education is a much better understanding of students and learning from a motivational perspective, from a psychological perspective. In education, the one thing we know how to measure best is I.Q., but what if doing well in school and in life depends on much more than your ability to learn quickly and easily?

So I left the classroom, and I went to graduate school to become a psychologist. I started studying kids and adults in all kinds of super challenging settings, and in every study my question was, who is successful here and why? My research team and I went to West Point Military Academy. We tried to predict which cadets would stay in military training and which would drop out. We went to the National Spelling Bee and tried to predict which children would advance farthest in competition. We studied rookie teachers working in really tough neighborhoods, asking which teachers are still going to be here in teaching by the end of the school year, and of those, who will be the most effective at improving learning outcomes for their students? We partnered with private companies, asking, which of these salespeople is going to keep their jobs? And who's going to earn the most money? In all those very different contexts, one characteristic emerged as a significant predictor of success. And it wasn't social intelligence. It wasn't good looks, physical health, and it wasn't I.Q. It was grit.

Grit is passion and perseverance for very long-term goals. Grit is having stamina. Grit is sticking with your future, day in, day out, not just for the week, not just for the month, but for years, and working really hard to make that future a reality. Grit is living life like it's a marathon, not a sprint.

A few years ago, I started studying grit in the Chicago public schools. I asked thousands of high school juniors to take grit questionnaires, and then waited around more than a year to see who would graduate. Turns out that grittier kids were significantly more likely to graduate, even when I matched them on every characteristic I could measure, things like family income, standardized achievement test scores, even how safe kids felt when they were at school. So it's not just at West Point or the National Spelling Bee that grit matters. It's also in school, especially for kids at risk for dropping out. 

To me, the most shocking thing about grit is how little we know, how little science knows, about building it. Every day, parents and teachers ask me, "How do I build grit in kids? What do I do to teach kids a solid work ethic? How do I keep them motivated for the long run?" The honest answer is, I don't know. (Laughter) What I do know is that talent doesn't make you gritty. Our data show very clearly that there are many talented individuals who simply do not follow through on their commitments. In fact, in our data, grit is usually unrelated or even inversely related to measures of talent.

So far, the best idea I've heard about building grit in kids is something called "growth mindset." This is an idea developed at Stanford University by Carol Dweck, and it is the belief that the ability to learn is not fixed, that it can change with your effort. Dr. Dweck has shown that when kids read and learn about the brain and how it changes and grows in response to challenge, they're much more likely to persevere when they fail, because they don't believe that failure is a permanent condition.

So growth mindset is a great idea for building grit. But we need more. And that's where I'm going to end my remarks, because that's where we are. That's the work that stands before us. We need to take our best ideas, our strongest intuitions, and we need to test them. We need to measure whether we've been successful, and we have to be willing to fail, to be wrong, to start over again with lessons learned.

In other words, we need to be gritty about getting our kids grittier. Thank you.