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| Articles about Interference |
| Thread Interference | | 2008-07-09 08:09:10 | | Consider a simple class called Counter class Counter { private int c = 0; public void increment() { c++; } public void decrement() { c--; } public int value() { return c; }}Counter is designed so that each invocation of increment will add 1 to c, and each invocation of decrement will subtract 1 from c. However, if a Counter object is referenced from multiple threads, interference between threads may prevent this from happening as expected. Interference happens when two operations, running in different threads, but acting on the same data, interleave. This means that the two operations consist of multiple steps, and the sequences of steps overlap. It might not seem possible for operations on instances of Counter to interleave, since both operations on c are single, simple statements. However, even simple statements can translate to multiple steps by the virtual machine. We won't examine the specific steps the virtual machine takes — it is enou... | | By: Free Download Books | | |
| | Improved RNA interference kits launched by Imgenex | | 2007-11-28 05:11:00 | | RNA interference (RNAi) is the process of mRNA degradation that is induced by double-stranded RNA in a sequence-specific manner. RNAi has been observed in all eukaryotes, from yeast to mammals. The RNAi pathway is thought to be an ancient mechanism for protecting the host and its genome against viruses and rogue genetic elements that use double-stranded RNA (dsRNA) in their life cycles. They have... | | By: healthy life | | |
| | Fan Interference | | 2007-06-15 22:44:34 | | Can’t do a full recap today, but as you probably know, there were a couple cases of fan interference in the OF bleachers today.
In the first case, Lee hit a ball to the point in LF where the “well” begins, and the home run basket sort of goes upward and back, at an angle. A fan grabbed hold of a railing, leaned out, and caught what he clearly thought was already a HR, on its way into the basket.
The umpire ruled, however, that the ball was still in play when the fan touched it and since it wasn’t interference with an on-field defensive opportunity, it was declared a double. Upon further review (and it took several reviews, and a blown-up image), the umps made the correct call. The ball was going to fall into the field of play, it wasn’t a HR. The interference didn’t hurt the outcome of the play. (Although conceivably, if he had managed to make the catch, perhaps the umps could have been fooled into calling it a home run, a la Jeffery Maier?) (Now tha... | | By: The Cub Reporter | | |
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