Sunday, September 21, 2014

Why do we like horror movies?

The horror movies show us terrible scenes, nevertheless the people enjoy so much to watch. Whether it scares people, why do we keep watching it?
According to Glenn Sparks, Ph.D, a professor and associate head of the Brian Lamb School of Communication at Purdue University, one reason for the appeal is how you feel after the movie. This is called the excitation transfer process. Sparks’s research found that when people watch frightening films, their heart rate, blood pressure and respiration increases.
Margarita Tartakovsky, M.S. says in her article (http://psychcentral.com/blog/archives/2012/10/31/why-some-people-love-horror-movies-while-others-hate-them/) “after the film is over, this physiological arousal lingers, Sparks said. (We’re just not aware of it.) That means that any positive emotions you experience – like having fun with friends – are intensified, he said. Instead of focusing on the fright you felt during the film, you recall having a great time. And you’ll want to come back for more.”
There are many theories about why we like to watch this kind of movies, one of them, is that the people, mainly men, enjoy to feel adrenaline that these films provide. Watching this kind of movie they feel stronger and safer, because they have no fear.
Another reason is the novelty, visual effects, suspense and the interesting histories that keep us involved in what is happening.

The truth is that they like to feel fearfulness, because the horror movies causes a different kind of fear, a feeling that make them get really scared, in panic, so they keep on alert waiting the next scene that will scared them.

Sunday, September 14, 2014

Quantum Computing

Scientists achieved new advances in research with quantum computing. Now, computers can resolve problems that then never could.
“Theories show how computing devices that operate according to quantum mechanics can solve problems that conventional (classical) computers, including super computers, can never solve.” A. P. Lund, A. Laing, S. Rahimi-Keshari, T. Rudolph, J. L. O’Brien, T. C. Ralph. Boson Sampling from a Gaussian State. Physical Review Letters, 2014; 113 (10).
Technology is advancing ever more and quantum computing is the future for computer science, recent research shows that we can solve many problems that we could not before. A quantum computer is a computation system that use of quantum-mechanical to perform operations on data. Quantum computation superposition of states (many states), unlike classical computers use binary digits (only two states).
If analyzed, quantum computing can be seen as a natural process of evolution of computers, since 1950, with the advent of transistors, the computers become fasters and their components get smaller. The physical boundary of these components is precisely the quantum size. The problem is that the quantum scale knowledge of classical physics cannot be applied.

Remember that for most conventional applications today's computers are efficient. But for applications that require intensive processing (for example, artificial intelligence, encryption, search in unordered lists, factoring large numbers) the quantum computer is the most promising option. According to the physicist Ivan Oliveira, Center for Research in Physics (CBPF), "In theory, Qubits based computers could solve problems that today would take billions of years in a matter of minutes."


Sunday, September 7, 2014

The Ebola Outbreak

The Ebola outbreak is spreading and it must to be stopped now. The time is passing and every day the disease is spreading, increasing the number of victims.
Despite the efforts of health workers from the affected countries and elsewhere, cases of Ebola will continue to increase, Frieden said. 
The area affected for the virus must to be isolated and specialists forward to the local of high contamination for help the patients and raise awareness. Lack of awareness is one of the causes of the increase in the number of infected.

If no action is taken now, the disease will spread more and more, and the Ebola outbreak can become global.