May 24, 2012

Thinking about science


The Structure of Scientific Revolutions" 50 years ago, Thomas Kuhn spent virtually the rest of his career defending -- often in vain -- its key ideas. At least, this is the story David Weinberger tells in an article on Kuhn at the Chronicle of Higher Education. Perhaps the most vexing problem Kuhn faced, according to Weinberger, is how to account for scientific progress, when concepts like paradigm shift and incommensurability seem to suggest that "progress" is at best problematic, or worse, impossible. Weinberger attributes much of the trouble to Kuhn's distaste for a straightforward correspondance theory of truth, and thinks abandoning one concept of truth means "we need another idea of what truth is and how we can ascertain if we're progressing closer to it."

May 23, 2012

Speed of change


Think for a second about the atomic bomb. There's a big, just gigantic, technological change. But when did it happen? We can argue that the "speed of change" was really slow until July 16, 1945, when the first atomic bomb exploded in New Mexico--the speed of change was super-fast on that particular day. This would be silly. So we have to average out the "speed of change" somehow. But over what timescale? So many industrial inputs (precision machining, computing and the like) and basic scientific insights (being able to calculate the likelihood that a neutron hitting an atomic nucleus will cause it to split in two) went into building the bomb that it's unclear where to start.

The claim that some forms of knowledge are fundamentally resistant to quantification (memorably described as a "bitch-goddess" by Carl Bridenbaugh in this essay) is anathema to policymakers today, who've emerged from business schools and management consultancies convinced that Excel macros will let them give reality to the shadows on the walls of Plato's cave.


How MBA-speak is hurting the scientific academy.
From: Konstantin Kakaes |Posted Tuesday, April 3, 2012

May 22, 2012

Eating speed > living speed


What new information did your equation render?

That the conventional wisdom of 3,500 calories less is what it takes to lose a pound of weight is wrong. The body changes as you lose. Interestingly, we also found that the fatter you get, the easier it is to gain weight. An extra 10 calories a day puts more weight onto an obese person than on a thinner one.

Also, there's a time constant that's an important factor in weight loss. That's because if you reduce your caloric intake, after a while, your body reaches equilibrium. It actually takes about three years for a dieter to reach their new "steady state." Our model predicts that if you eat 100 calories fewer a day, in three years you will, on average, lose 10 pounds -- if you don't cheat.

Another finding: Huge variations in your daily food intake will not cause variations in weight, as long as your average food intake over a year is about the same. This is because a person's body will respond slowly to the food intake.

Continue reading "Eating speed > living speed" »

May 21, 2012

School of Life


School, which sells 'programmes and services concerned with how to live wisely and well', is a step towards 'an ideal new sort of institution', a 'university of life' that would encourage its students 'to master their lives through the study of culture rather than using culture for the sake of passing an exam'.

-- School of Life, on Marchmont Street in Bloomsbury

May 19, 2012

Daringfireball.net on attribution_and_credit


Linking is indeed key. You get a story from somewhere else, you link to the original when you post about it. That's the first rule of web attribution.

There are reasons why AllThingsD is far more respected than CNET.

"Enthusiast site" is pejorative. Enthusiast implies that MacStories is produced by zealous hobbyists. Not naming the site at all implied that the site was not worthy of being named. To later attribute it to "macstories.net" rather than "MacStories" implies that it is something less than a fellow peer publication, and not even worth the effort of hitting the shift key to camelcase the M and S. MacStories is the name of the website; macstories.net is MacStories's domain name. This is subtle, yes, but it is a disparagement nonetheless -- the most begrudging form of attribution that could have been added.

I don't see the angle on it. Why not err on the side of magnanimity?


Continue reading "Daringfireball.net on attribution_and_credit" »

May 18, 2012

Four Hour Learning


Look for anomalies. For any given skill, there's going to be an archetype of someone should be successful at that skill. If it's swimming, for example, it would be someone with the build of Michael Phelps. They would have a long wingspan, relatively tall, big hands, big feet and large lung capacity. So, if I can find someone who defies those anatomical proportions -- say, someone who's 5′ 5″, extremely heavily muscled, like 250, who is still an effective swimmer -- I want to study what the anomalies practice because attributes can compensate for poor training. I want to find someone who lacks the attributes that can allow them to compensate for poor training.

Typically, you find much more refined approaches when you look at the anomalies. That's true for any skill I have looked at, whether that's programming or otherwise. So, let's just take computer programming. If the common belief is that someone should start with language A, then progress to framework B and then progress to language C, if I can find someone who skipped those first two steps and is regarded as one of the best programmers in language C, I'm going to look closely at how they developed that skill set. In some cases, it correlates to their use of analogies and background from music or natural languages (for example, Derek Sivers or Chad Fowler)

May 17, 2012

Price negotiation with real estate developers


GAME PLAN

The New York real estate market has tightened this spring, but buyers can still get good deals on new condos. Following are some tactics you might consider:

BE FIRST Developers want to kick-start sales to generate momentum, and they also need to sell a certain percentage of units to qualify the condominium as a functioning business entity.

BE LAST Especially if a project has been on the market for many months, the developer and brokers may offer discounts or incentives to unload the final few units.

ON THE MARGINS Smaller developments in emerging or out-of-the-way neighborhoods can be harder to sell. But if they meet your needs, there are bargains to be had.

BRING CASH Buyers who don't need financing contingencies in their contracts are a developer's dream.

RESPECT THE ASKING PRICE Developers are loath to offer price discounts because they lower the value of all other units. Instead, ask if some closing costs or legal fees could be covered.

May 16, 2012

Facebook: trove for police ?


Analysis: WikiLeaks Julian Assange and Facebook banter over an accusation that the site offers back-door access to U.S. spy agencies.
By Dan Tynan, ITworld May 8, 2011 11:13 am

Facebook's an appalling spy machine? That's what WikiLeakers founder (and Martina Navratilova impersonator) Julian Assange is saying. In an interview with Russia Times, the floppy-haired leaker extraordinaire declares:

Facebook in particular is the most appalling spying machine that has ever been invented. Here we have the world's most comprehensive database about people, their relationships, their names, their addresses, their locations and the communications with each other, their relatives, all sitting within the United States, all accessible to US intelligence. Facebook, Google, Yahoo -- all these major US organizations have built-in interfaces for US intelligence. It's not a matter of serving a subpoena. They have an interface that they have developed for US intelligence to use.

Now, is it the case that Facebook is actually run by U.S. intelligence? No, it's not like that. It's simply that U.S. intelligence is able to bring to bear legal and political pressure on them. And it's costly for them to hand out records one by one, so they have automated the process. Everyone should understand that when they add their friends to Facebook, they are doing free work for United States intelligence agencies in building this database for them.

Julian Assange (Credit: Wikicommon)How does Mr. Assange come to be in possession of this knowledge? I suspect he made a few rather large logical leaps, based on the confidential document WikiLeaks just made available on PublicIntelligence.net: Facebook's 2010 Law Enforcement Guidelines.

Continue reading "Facebook: trove for police ?" »

May 15, 2012

Just bing it


If a person searched for the movie "The Avengers," for example, Bing would annotate the results to indicate whether the searcher's Facebook friends had "liked" any of the Web pages found in that search previously on the social network.

Microsoft executives said that approach, on its own, did not have much success, partly because it cluttered the display of search results. "It was a good experiment, but it wasn't working in the way we expected," said Derrick Connell, a corporate vice president of Bing program management.

The new Bing has a much cleaner design that tucks all of the social search results away into a sidebar on the Bing search results pages, where they are now clearly distinct from the traditional Bing search results on the left side of the screen.

But the revamping also goes much further in the kind of information it picks up from Facebook.

For the search for "best hotels in Maui," for example, the results will also allow searchers to post questions about favorite hotels to the friends with Maui expertise that Bing has identified, without leaving the Bing search results page.

Continue reading "Just bing it" »

May 14, 2012

Quantified-Self


Footsteps, sweat, caffeine, memories, stress, even sex and dating habits - it can all be calculated and scored like a baseball batting average. And if there isn't already an app or a device for tracking it, one will probably appear in the next few years.

Over the last weekend of May, in the upstairs of the Computer History Museum in Mountain View, California, in the heart of Silicon Valley, 400 "Quantified-Selfers" from around the globe have gathered to show off their Excel sheets, databases and gadgets.

-- April Dembosky, FT's San Francisco correspondent


Continue reading "Quantified-Self" »

May 13, 2012

Service economy


Workers who once built houses, offices or big-box retail complexes are now venturing into the absurd. Ken, who declined to give his last name because he said he was embarrassed by his situation, said he had been paid $250 to clean out a Palm Beach apartment where a tenant had committed suicide.

But he has rebuffed other responses to his ads, variations on "RENT A HUSBAND ! ! ! HANDYMAN SERVICES - 25% OFF." Last month, he said, "I had a guy call me 10 o'clock at night and ask me if I had a vise. And I said yeah, and he said 'Can you meet me somewhere and I want to put my hand in the vise and you crush it ?' " Ken said he demurred.

Then there was the woman from Fort Lauderdale who called wanting to hire him to rig up a sex swing while her husband was away. "She wanted me to come hang it in her 'room of doom,' " he said. "She offered me a lot of money, but I said 'No, no it just doesn't seem like something I want to get involved in.' "

Continue reading "Service economy" »

May 12, 2012

Position: open to enter, exit to close

Four things to understand before adding risk via options:

1. Understand the Cause of Volatility in your instrument

2. What is ATM Implied Volatility

3. What is the Curvature of the Skew (how pricy are calls and puts)

4. What is the current Term Structure

-- OptionPit

May 11, 2012

ETFs over mutual funds

exchange-traded-funds (ETF) history lesson.

Exchange-Traded Funds
Ozgur Emre Ergungor
Cleveland Fed

May 7-9 was a great streak at Barry's BP.

May 10, 2012

On sociology

It's not like the power people are studying one area while the economic people are studying another. They're all looking at society as a whole, but from different premises. That's why it's incoherent: all 4 will look at the same phenomenon and confidently describe it in mutually incompatible ways.


1 Hard core interactionism/social constructionism: Social reality is defined mainly by how it's enacted in specific situations and these vary quite a bit. Moreover, interactions aren't necessarily reducible to the broader social order. The more radical elements of this tradition run into post-modernism - there is no coherent social reality because it's created differently in different contexts (i.e., no coherent self). You see it also pop up in the strong sociology of knowledge (construction of ideas may have little to do with "reality").

2 Critical social theory: The basis of social reality is power. This can be defined in economic terms (Marx), race (DuBois), or gender (feminists). Or it can be generically defined (Bourdieu). Most of social life boils down to struggle over the stuff that gives your power, or resisting the power.

3 Values, institutions, and relations: This is the broad trend stemming from Weber and Durkheim. The basic elements of VI&R are that human communities have values, which are translated into order via rules, organizations, and institutions. This basic set up motivates everyone from Parsons, to Selznick, to Sumner, to Luhmann, to the world polity crowd. The flavors may be different, but they're all about the push and pull between values and structure.

4 Resources and Action: This strand represents what might be called the "economic view" on things. Psychology and values are strongly de-emphasized and you just work on strategic action. The old version was called "social exchange." Now we call it rational choice. But the R&A tent is big enough to catch some other types of sociology. Organizational ecology - psychology thin and focusing on competition - fits here as well. So might lightly theoretical stratification research.


May 9, 2012

Rogue HOA in Las Vegas

When a new development was nearing completion, the group would buy a couple of units in the community and then transfer partial ownership of the condos to individuals secretly on its payroll, according to court documents. While pretending to be residents of the communities, these "straw buyers" would run for leadership positions on boards of the new homeowner associations.

By paying off community managers, hiring private investigators to find dirt on legitimate candidates and rigging elections, the documents allege, the straw buyers were able to infiltrate boards at several new developments in Las Vegas from 2003 to 2008. Once in control of the boards, the straw buyers would then use their governing positions to steer millions of dollars in construction and legal fees back to their co-conspirators. Targets included the Chateau Nouveau, Chateau Versailles, Park Avenue, Palmilla Townhomes, Jasmine, Pebble Creek, Mission Ridge, Mission Pointe, Horizons at Seven Hills, Sunset Cliffs and the Vistana.

-- Felix Gillette, Businessweek

Continue reading "Rogue HOA in Las Vegas" »

May 8, 2012

Wipe down the telephone, night stand, remote control and bathroom with disinfectant. Disinfect the handle on the minibar fridge, and relax.


AT THE HOTEL Dr. Philip M. Tierno, a microbiologist at the New York University School of Medicine, recommends laying the bedspread aside, because it is washed rarely, and making sure the sheets are crisp and clean; if they are not, request another room. Check the mattress for bed bugs. Wipe down the telephone, night stand, remote control and bathroom with disinfectant. Disinfect the handle on the minibar fridge, and relax.

OUT AND ABOUT Americans traveling to less developed nations should pay special attention to the water, according to Dr. David Schlossberg, a professor of medicine at Temple University who contributed to and edited the book "Infections of Leisure." He recommends drinking only bottled water with a sealed cap, to make sure you're not swallowing dressed-up tap water. Carbonated water is best. Do not use ice (frozen tap water), do not eat salad (washed in tap water) or fruit you can't peel yourself. Use bottled water to brush your teeth. At restaurants, he cautions against eating anything that is room temperature or seems undercooked. "For all the advances in medicine, infectious disease remains the No. 1 killer on the planet," he said.

May 7, 2012

VXX loses


Roll Yields'

That issue isn't disclosed until page 15 of the note's prospectus: "The existence of contango in the futures markets could result in negative 'roll yields', which could adversely affect the value of the index underlying your ETNs and, accordingly, decrease the payment you receive at maturity or upon redemption."

Kristin Friel, a spokeswoman for London-based Barclays, declined to comment.

The average ETN annual investor fee is 0.84 percent, according to Morningstar data. That doesn't include a lot of the tacked-on charges, Lee said. The UBS short VIX ETNs, for example, add about a 4 percent annual fee for "event-risk" hedging, leading to a total cost of 5.35 percent, he said.

Christiaan Brakman, a UBS spokesman, declined to comment.

Continue reading "VXX loses" »

May 6, 2012

Use technology to stay private, online


If you do not want the content of your e-mail messages examined or analyzed at all, you may want to consider lesser-known free services like HushMail, RiseUp and Zoho, which promote no-snooping policies. Or register your own domain with an associated e-mail address through services like Hover or BlueHost, which cost $55 to $85 a year.

Another shrouding tactic is to use the search engine DuckDuckGo, which distinguishes itself with a "We do not track or bubble you!" policy. Bubbling is the filtering of search results based on your search history. (Bubbling also means you are less likely to see opposing points of view or be exposed to something fresh and new.)

Regardless of which search engine you use, security experts recommend that you turn on your browser's "private mode," usually found under Preferences, Tools or Settings. When this mode is activated, tracking cookies are deleted once you close your browser, which "essentially wipes clean your history," said Jeremiah Grossman, chief technology officer with WhiteHat Security, an online security consulting firm in Santa Clara, Calif.


Continue reading "Use technology to stay private, online" »

May 5, 2012

Housing in better school district costs a $11,000 a year


A new study from the Brookings Institution quantifies that price gap, and the differences between the cost of living near a high-scoring public school and a low-performing one are striking.

The study, by Jonathan Rothwell, a senior research analyst in the Metropolitan Policy Program at Brookings, found that housing costs in the nation's 100 largest metropolitan areas were an average of 2.4 times as high - a difference of $11,000 a year - for homes near schools whose average test scores put them in the top fifth of schools in the area, compared with schools in the bottom fifth.

That means that a family would have to pay more per year to move into a good public school zone than for their children to attend some private schools. Translated into an average home price, the gap works out to an average of $205,000 more for a home near a high-performing school.

"We think of public education as being free, and we think of the main divide in education between public and private schools," Mr. Rothwell said in an interview. "But it turns out that it's actually very expensive to enroll your children in a high- scoring public school." Mr. Rothwell said that in the New York metropolitan area, for example, annual housing costs are $16,000 higher on average in neighborhoods near high-performing schools than in neighborhoods near low-performing schools,

Continue reading "Housing in better school district costs a $11,000 a year " »

May 4, 2012

Avent, Glaeser and Yggls go urban


Cities are really important, as engines of the broad economy via industrial clustering, as enablers of efficiency-enhancing specialization and trade, as sources of customers to whom each of us might sell services. Contrary to many predictions, technological change seems to be making human density more rather than less important to prosperity in the developed world. Commerce intermediated at a distance via material goods has become the province of cheap workers in distant lands, and will very soon be delegated to robots. The value of human work is increasingly in collaborative information production and direct personal services, all of which benefit from the proximity of diverse multitudes.

-- and Avent, Glaeser and Yglesias

Continue reading "Avent, Glaeser and Yggls go urban" »

May 3, 2012

Smooth or pejazzled is the choice for men in NYC


"What we're finding is, it's everybody," said Mike Indursky, the president of the Bliss chain of spas, which offers a men's Brazilian called the Ultimate He-Wax for $125. "It's the gay community, it's the straight community, it's very conservative guys, it's very liberal guys. All different age groups are coming in. It's much, much bigger than we ever thought."

Men's bikini waxing accounts for around 70 percent of the weekly business at Face to Face, a discreet salon in the Flatiron district of Manhattan with a predominantly male clientele founded eight years ago by Enrique Ramirez. "When I started, I was like, 'Nobody's going to come in and get this done,' and it's just kept growing and growing," Mr. Ramirez said. "In the past two years, it's been crazy."

The salon offers a full Brazilian called South of the Border for $70, along with partial treatments. Also on its menu is something called "pejazzling," in which crystals in patterns like stars and dolphins are affixed on newly defuzzed skin.

Fashion & Style
A He-Wax for Him
By RACHEL FELDER
Published: April 10, 2012
Lately, men's grooming has gone one step farther than a manicure or a facial, into territory previously reserved solely for women: bikini waxing.

Continue reading "Smooth or pejazzled is the choice for men in NYC" »

May 2, 2012

Exercise then eat: extra hungry, hungry for what


The researchers had the volunteers either vigorously ride computerized stationary bicycles or sit quietly for an hour before settling onto the M.R.I. tables. Each volunteer then swapped activities for their second session.

Immediately afterward, they watched a series of photos flash onto computer screens. Some depicted low-fat fruits and vegetables or nourishing grains, while others showcased glistening cheeseburgers, ice cream sundaes and cookies. A few photos that weren't of food were interspersed into the array.

In the volunteers who'd been sitting for an hour, the food-reward system lit up, especially when they sighted high-fat, sugary items.

But if they had worked out for an hour first, those same people displayed much less interest in food, according to their brain scans. Their insula and other portions of the food-reward system remained relatively quiet, even in the face of sundaes.

"Responsiveness to food cues was significantly reduced after exercise," says Todd A. Hagobian, a professor of kinesiology at California Polytechnic who oversaw the study, published last month in The Journal of Applied Physiology. "That reduction was spread across many different regions of the brain," he continues, "including those that affect liking and wanting food, and the motivation to seek out food." Though he didn't follow the volunteers after they'd left the lab to see whether they might have headed to an all-you-can-eat buffet on days they exercised, on questionnaires they indicated feeling much less interested in seeking out food after exercise than after rest.

Those results may not be typical, though. The Cal-Poly subjects uniformly were in their 20s, normal weight and fit enough to ride a bike strenuously for an hour. Many of us are not.

May 1, 2012

California squeezes middle class


California Democrats want to raise taxes even more. Mind you, the November ballot initiative that Mr. Brown is spearheading would primarily hit those whom Democrats call "millionaires" (i.e., people who make more than $250,000 a year). Some Republicans have warned that it will cause a millionaire march out of the state, but Mr. Kotkin says that "people who are at the very high end of the food chain, they're still going to be in Napa. They're still going to be in Silicon Valley. They're still going to be in West L.A."

That said, "It's really going to hit the small business owners and the young family that's trying to accumulate enough to raise a family, maybe send their kids to private school. It'll kick them in the teeth."

A worker in Wichita might not consider those earning $250,000 a year middle class, but "if you're a guy working for a Silicon Valley company and you're married and you're thinking about having your first kid, and your family makes 250-k a year, you can't buy a closet in the Bay Area," Mr. Kotkin says. "But for 250-k a year, you can live pretty damn well in Salt Lake City. And you might be able to send your kids to public schools and own a three-bedroom, four-bath house."

According to Mr. Kotkin, these upwardly mobile families are fleeing in droves. As a result, California is turning into a two-and-a-half-class society. On top are the "entrenched incumbents" who inherited their wealth or came to California early and made their money. Then there's a shrunken middle class of public employees and, miles below, a permanent welfare class. As it stands today, about 40% of Californians don't pay any income tax and a quarter are on Medicaid.

It's "a very scary political dynamic," he says. "One day somebody's going to put on the ballot, let's take every penny over $100,000 a year, and you'll get it through because there's no real restraint. What you've done by exempting people from paying taxes is that they feel no responsibility. That's certainly a big part of it.

And the welfare recipients, he emphasizes, "aren't leaving. Why would they? They get much better benefits in California or New York than if they go to Texas. In Texas the expectation is that people work."

THE WEEKEND INTERVIEW
April 20, 2012, 7:19 p.m. ET

Joel Kotkin: The Great California Exodus
A leading U.S. demographer and 'Truman Democrat' talks about what is driving the middle class out of the Golden State.

April 30, 2012

Journal of Retraction

The journal of Infection and Immunity wound up retracting six of the papers from the author, Naoki Mori of the University of the Ryukyus in Japan. And it soon became clear that Infection and Immunity was hardly the only victim of Dr. Mori's misconduct. Since then, other scientific journals have retracted two dozen of his papers, according to the watchdog blog Retraction Watch.

-- Dr. Ferric C. Fang (2010) editor in chief of the journal, professor at the University of Washington School of Medicine.

Last month, in a pair of editorials ( 1, 2 ) in Infection and Immunity, the two editors issued a plea for fundamental reforms. They also presented their concerns at the March 27 meeting of the National Academies of Sciences committee on science, technology and the law.

In October 2011, for example, the journal Nature reported that published retractions had increased tenfold over the past decade, while the number of published papers had increased by just 44 percent. In 2010 The Journal of Medical Ethics published a study finding the new raft of recent retractions was a mix of misconduct and honest scientific mistakes.


April 29, 2012

Amulet


For a long time and for a lot of us, "college" was more or less a synonym for success. We had only to go. We had only to graduate. And if we did, according to parents and high-school guidance counselors and everything we heard and everything we read, we could pretty much count on a career, just about depend on a decent income and more or less expect security. A diploma wasn't a piece of paper. It was an amulet.

Continue reading "Amulet" »

April 28, 2012

Hikikomori


Rental "relatives" are available for sparsely attended wedding parties; so-called "babyloids" -- furry dolls that mimic infant sounds -- are being developed for lonely seniors; and Japanese researchers are at the forefront of efforts to build robots that resemble human babies. The younger generation includes millions of so-called "parasite singles" who still live with (and off) their parents, and perhaps hundreds of thousands of the "hikikomori"--"young adults," Eberstadt writes, "who shut themselves off almost entirely by retreating into a friendless life of video games, the Internet and manga (comics) in their parents' home."

Incredible Shrinking Country
There are "babyloids" and relatives-for-rent in an increasingly childless Japan.

Word of the day: