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Comment What about those 500,000 apps? (Score 1) 631

It's arguable that Apple as a business might not directly create as many jobs as a traditional manufacturing business; however, Apple certainly fosters the creation of "collateral" jobs with myriads of developers working night and day to produce iOS apps. As of today, Apple has approved more than 500,000 of them (source).

Comment Re:Iran is led by an engineer.... (Score 1) 188

He may indeed be spouting plenty of nonsense; however, I wouldn't be so sure about the legitimacy of his PhD. His PhD was in transportation engineering and planning (could it get even more nebulous?), while he was the mayor of a province (source).

Set aside all the controversy regarding the abundance and legitimacy of PhD graduates in his entourage (source), as a PhD student myself, I find it hard to believe that he could complete a PhD degree in a reasonable amount of time while working full-time as the mayor of a large province (Ardabil).

Comment Re:Managing Perceptions (Score 1) 128

Actually, I think it would be worse for Amazon to admit that they did suffer a DDoS. I can easily imagine the more "technically challenged" people confusing an attack with an actual break-in. A break-in would imply that their accounts are exposed, including personal data, and could potentially cause a threat to them (impersonation, blackmailing, etc).

Comment It is being done for the heart (Score 3, Interesting) 252

The same applies to the dissection of other organs as well. For instance, any dissection of the heart is inherently biased towards the cutting planes defined by the dissector (source). The true arrangement of muscle fibers in the left ventricle of the heart (more precisely the existence of sheet structure) is still a subject of hot debate because of this. Obviously, one might think that by now, we should be able to just pick an organ and throw it into the best relevant imaging scanner (CT, MRI, PET, etc.). The truth is, there is still anatomical information that even state-of-the-art medical imaging modalities cannot reliably reveal.

As an example, consider DT-MRI that measures the diffusion of water molecules along the tissue fibers in an organ. The discretization in the data is such that only the local average orientation of the diffusion of water is known at any given location. To obtain more useful anatomical information, the full fiber pathway in a region needs to be reconstructed, a task called fiber tractography. Different computational methods based on different anatomical assumptions lead to results that are often contradictory (as is the case in the heart models described in the article cited above) and since there is no ground truth (remember that the dissection is biased), we currently hit a dead-end.

Hopefully, as more dissections (like this one) are performed and the data is made available publicly, we will eventually be able to faithfully reconcile pieces of what we observe in medical conditions, in medical scanners, and on the dissection table.

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