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+ - Exposure to Morning Sunlight Helps Managing Weight

Submitted by jones_supa
jones_supa (887896) writes "A new Northwestern Medicine study reports the timing, intensity and duration of your light exposure during the day is linked to your weight — the first time this has been shown. People who had most of their daily exposure to even moderately bright light in the morning had a significantly lower body mass index (BMI) than those who had most of their light exposure later in the day, the study found. It accounted for about 20 percent of a person’s BMI and was independent of an individual’s physical activity level, caloric intake, sleep timing, age or season. About 20 to 30 minutes of morning light is enough to affect BMI. The senior author Phyllis C. Zee rationalizes this by saying that light is the most potent agent to synchronize your internal body clock that regulates circadian rhythms, which in turn also regulate energy balance. The study was small and short. It included 54 participants (26 males, 28 females), an average age of 30. They wore a wrist actigraphy monitor that measured their light exposure and sleep parameters for seven days in normal-living conditions. Their caloric intake was determined from seven days of food logs. The study was published April 2 in the journal PLOS ONE. Giovanni Santostasi, a research fellow in neurology at Feinberg, is a co-lead author."

+ - Mozilla CEO attacked about his views of Gay Marriage.

Submitted by raque
raque (457836) writes "The NYTimes is running this story about Mozilla CEO Brendan Eich being attacked about his views on Gay Marriage. The Times reported that was blocking access to their site for Firefox users.

Is there anything in the ideals of the Open Source community that is relevant to Gay Marriage and LGBT issues in general? Is supporting Gay Marriage a requirement for developing Open Source Software? As I read the story and comments I was wondering how sexual orientation fit into the GPL."

Comment: Model Airplanes are Advances in Air Power (Score 1) 211

Drones are just souped-up model airplanes piloted by remote control. By leaving the pilot on the ground, they can stay in the air a lot longer. By using smart bombs, they can drop them one at a time, instead of a whole bomb load at once, like the B-52 and B-2, et cetera. By using stealth tech, they are less vulnerable.

There is still a pilot with responsibility and authority, and they can be relieved in the middle of combat by another. So fewer mistakes. Drones can be piloted by a group, kind of like pair programming. And no captured pilots to be held as hostages.

The latest technological advance is to use smaller explosives because the bombs are more accurate.

Comment: Poked too much (Score 1) 124

by oldCoder (#45501685) Attached to: New Smart Glasses Allow Nurses To See Veins Through Skin

I recently spent far too much time in a hospital and they poked me a lot. A whole lot. Each time they needed to find a vein. I've been asking for technology like this for a long time.

Finding a vein is now a very personalized skill. One doctor who was a real genius at this, has poor sight and hearing, and told me he does it by feel. Others use very bright lights. One nurse, who was the backup when everybody else couldn't find a vein, said she doesn't know how she does it.

For people who need intravenous meds all the time, there are permanent installations they attach to the patients arm or neck. They go into the big vein leading into the top of the heart, the superior vena cava.

This could be a great boon to patients.

Comment: Geology might be too narrow (Score 1) 237

by oldCoder (#44348617) Attached to: Ask Slashdot: Scientific Research Positions For Programmers?

What with oil possibly on the way out or on the way down, employment long-term might be narrowing in geology, over the decades.

But one computer-intensive area seems to be on the way up: Bioinformatics. More data, more processing, more algorithms to be invented, an endless supply of medical and biological research problems. Also, more different languages in use. Even Google has a bioinformatics research program.

Either way, though, you'd be better off with a masters degree of some kind.

There's a reason that several universities offer a masters in bioinformatics. There are offerings in geomatics, but they don't seem to be targeted directly at geology. At least on the first Google page.

Comment: Water and Water Vapor (Score 1) 440

by oldCoder (#44348489) Attached to: How Climate Scientists Parallel Early Atomic Scientists

Water vapor is more complex than CO2 alone. Water vapor creates clouds both high and low, water clouds and ice clouds, day clouds and night clouds. Without the water vapor effects, the CO2 wouldn't be causing much warming. But water vapor effects vary much more than CO2 effects.

Water vapor effects also include thunderstorms and hurricanes, which move around hot tropical air and have a net cooling effect on the earth, by moving hot air to a higher altitude. Or so it seems.

So climate is in chaos, limited by the laws of thermodynamics.

Speaking of water, it appears that some significant fraction of the heat is going into the deeper oceans. We're not sure how much, not sure how it gets there, and not sure how long it will stay. These are all open research questions.

So while sensitivity shows no sign of being negative, it isn't very predictable. And, in fact, estimates of sensitivity have been wandering up and down for some time now. We need to know the sensitivity of the temperature of air at the earth's surface to CO2, water vapor, methane, and so on. But the total energy added can distribute to the deep sea as well, so surface temps aren't simply dependent on energy added.

The amount of energy that would raise the air temperature by two degrees, would only raise the deep sea temp by a tiny fraction of that, due to the difference in the heat capacity of water vs air. So temperature-change is not related to the energy added in a simple way.

Whatever the answer, it ain't simple.

Comment: How Does Syria Pay? (Score 1) 188

Syria must be seriously broke by now. In comparison to Syria, Israel's economy is doing fantastically well. I think the only payment Syria could make would be to let the Russians have military bases on Syrian soil, and expand Russian naval presence on the Mediterranean.

On Deep Background:

A Russian ship is currently visiting Israel, which has many ex-Russian citizens.

Russia has also received title to a large tract of land in downtown Jerusalem, purchased in previous centuries by the Russian Orthodox Church.

The most effective way for Obama to help the Syrian rebels might be to persuade Netanyahu to announce support for the Assad regime, and that the Assads are actually (but secretly) a Jewish family.

Comment: Bad Metric — Lines of Code (Score 1) 209

by oldCoder (#43668919) Attached to: 450 Million Lines of Code Can't Be Wrong: How Open Source Stacks Up

Let's say two different programs, A and B, do the same thing, and they each have 6 bugs. If program A has twice as many LoC (Lines of Code) as program B, then program A gets the higher score! Program A has half the error density of program B; But program A is clearly inferior, as it uses more memory, uses more disk space, probably runs more slowly, and is harder to debug.

I can easily fatten up any program to use more LoC, and not just with newlines, with real code, that might even be executed now and then. Coverity could, I suppose, counter my sabotage with a code-coverage tool to find the bloat, but there are sneaky ways to fool that, too.

Comment: Re:doh! (Score 1) 138

by oldCoder (#39420191) Attached to: Satellites Expose 8,000 Years of Civilization

It's entirely possible that some event happened around 6000 years ago that changed (all or some) of humanity. Perhaps there was a genetic change that made human minds more sensitive, or possibly even a Divine Intervention altering the souls of the then-existing naked apes. This event could have made people "More human".

I am not aware that any physical evidence has turned up to support this hypothesis. Yet.

Comment: Worthwhile Goal (Score 2) 58

by oldCoder (#39332525) Attached to: Algorithm Brings Speedier, Safer CT Scans

A while back I had several full-body CT scans on an emergency basis. They found what they were looking for in my liver and it was treated. But I was forbidden to have any X-Rays of any kind for two years after that. So when I came down with bronchitis and pneumonia, the doctor had to play it by ear (literally, he just listened to my chest). All is well, now. But lowering the X-Ray dosage of CT scans is very worthwhile.

Comment: Re:Today's dose of fearmongering... (Score 1) 609

by oldCoder (#39245405) Attached to: Iran's Smart Concrete Can Cope With Earthquakes and Bombs

============== Mon Mar 5, 2012 10:45 ==============
Iran's concrete is defensive. It's their ballistic missiles that are offensive. Look up the Shahab and Sajil ballistic missiles.
It's lying to the IAEA that raises suspicions. It's Iran's claim to have the right to dominate the entire Middle East that frightens the Sunni Arab states. And Iran's constant cries of "Death to America" and "Death to Israel" tell us a great deal.

The phrase that was translated by Iran's official English website as "Wiping Israel off the map" was made clearer when they put it on a banner attached to a ballistic missile in a military parade.

If Israel or the US wanted to attack Iran, they've had 31 years to do it. Iran's nuclear weapons program is not defensive.

Porsche: there simply is no substitute. -- Risky Business