New Hopes for an AIDS Vaccine

First of December. World AIDS Day : a time to stop in medical advances to combat the disease. 35 million people are suffering AIDS in the world, among them more than 25 million are in Africa. Therapies slow down the progression of this disease, but are expensive and long time toxicity .

Px Therapeutics scientists searching a vaccine against AIDS. The 41 Euroneut program involving 17 European partners investigates how to block entry of the virus into the body.

The vaccine is based on the gp41 protein which is within the virus . 

Nicolas Mouz is the director of Px Therapeutics, in Grenoble , France: " The GP41 protein was chosen because it is a protein that is located on the surface of the virus. Is a protein that the immune system can sense and also plays a important role in the mechanism of virus entry into the cell. "  The AIDS virus is constantly changing to fool our immune system. But the GP41 protein does not change, what could be the Achilles heel of the virus. If the body produces neutralizing antibodies, the vaccine could be effective .

In the UK, the Guilford Center conducts tests on volunteer patients . Dr. David Lewis , medical immunologist , is responsible for the investigation of this vaccine. The Doctor Lewis says: "If we put the vaccine in the nose a good response in the genital tract is stimulated. So the concept is innovative start administering the vaccine in the nose with 3 doses . This prepares the body for a good response in the genital tract in order to block infection with antibodies to keep it out . "

The human immunodeficiency virus is so complex that you have to combine all the preventive measures from access to antiretrovirals to achieve a safe and effective vaccine.

Informative Video: New Hopes for an AIDS Vaccine

Science vs religion.

Science vs religion 
This is a topic that has been discussed a lot, they keep discussed about it and continue to discussed it because never ending the controversy between them.
There is much interest for years to determine their relation. So, why science has always clashed with religion? Because each is considered the most appropriate to gain knowledge and criticize the work of another field, (science doesn't accept the faith without evidence and religion says science denies the most fundamental). Although the two disciplines must collaborate because they share some goals and can bring up ideas.

 But, we can explain everything from two views? For example, we talked about how life arose because the age of the world according to the Bible not conform to 3,000 million years tell us that science.

• The theory of the scientific community is that life evolved from inanimate matter almost 4.000 million years. 
• According to religion, however, the world was created by God in seven days. 

 Science and religion; a strange couple. What about this relation? Stephen Jay Gould says science studies how is the sky and religion how to get there.

 Definitely, it shouldn't be so difficult relation between science and faith if each know their objectives and methodology, but in practice it has been difficult

The Dark Energy

Of all the mysteries of the universe unsolved one that has my calls my attention is the issue of dark energy hi so I want to upload this entry on this topic. Under current physical dark energy is a type of energy that is present throughout the universe and enb causing the galaxies apart ever go faster, in other words dark energy causes the acceleration of the universe accelerates and increasingly more and more.Yet there are still many things we do not know about this energy and the universe,Hope that someday you can solve this mysteries

Your brain eleminate the trash when you sleep

The investigators of the Rochester University has made one study about the importance of sleep.

This study say that when we sleep our brain eliminate the trash that we not need, when we sleep our brine is very active in the trash elimination as the beta-amiloide, that produce Alzheimer ore other diseases.

The glinfático system is the responsible system of the elimination of the trash in the rest of the body.

Know how pass this elimination is one thing that was not possible until now, because the technologies have evolved, with the two-photon microscopy.

Other thing that to the brain when we sleep in reduced its size one 60%, this produce more space in the cells and do that the elimination of the beta-amoloide is more easy.

The conclusion are that when we sleep more, we have less provability to have Alzheimer or other diseases, but if we sleep little we have more provability, for this is very important sleep.  

Wearing socks over your shoes reduces your chances of slipping on ice

Wearing socks over your shoes reduces your chances of slipping on ice

This Study was conducted by New Zelans scientists who wanted to know if wearing socks over shoes improved the tracion in icy sidewalks.

They do an experiment. After conducting the experiment with 29 people, two-third had previously fallen on ice, scientists found that wearing socks over their shoes was associated with a statisically significant improvement in tracion.

Wormholes

Wormholes

The Wormholes  is an astronomic rare and very incredible object. According to the article that I have read in a book of astronomy, the Wormholes are enormous routes that allow to connect different parts of the universe, in the time and in the space. 

Sounds like science fiction. Nevertheless, the holes of worm exist, at least as mathematical solutions to a series of formulae known as Einstein's field equations. Even this way, his royal existence is another question still not seizure.


Wormhole picture.

Time travel

Popular television shows such as "Doctor Who" have brought the idea of time travel into the vernacular of popular culture. But problem of time travel is even more complicated than one might think. LSU's Mark Wilde has shown that it would theoretically be possible for time travelers to copy quantum data from the past.

It all started when David Deutsch, a pioneer of quantum computing and a physicist at Oxford, came up with a simplified model of time travel to deal with the paradoxes that would occur if one could travel back in time. For example, would it be possible to travel back in time to kill one's grandfather? In the Grandfather paradox, a time traveler faces the problem that if he kills his grandfather back in time, then he himself is never born, and consequently is unable to travel through time to kill his grandfather, and so on. Some theorists have used this paradox to argue that it is actually impossible to change the past.

"The question is, how would you have existed in the first place to go back in time and kill your grandfather?" said Mark Wilde. Deutsch solved the Grandfather paradox originally using a slight change to quantum theory, proposing that you could change the past as long as you did so in a self-consistent manner.

"Meaning that, if you kill your grandfather, you do it with only probability one-half," Wilde said. "Then, he's dead with probability one-half, and you are not born with probability one-half, but the opposite is a fair chance. You could have existed with probability one-half to go back and kill your grandfather."

But the Grandfather paradox is not the only complication with time travel. Another problem is the no-cloning theorem, or the no "subatomic Xerox-machine" theorem, known since 1982. This theorem, which is related to the fact that one cannot copy quantum data at will, is a consequence of Heisenberg's famous Uncertainty Principle, by which one can measure either the position of a particle or its momentum, but not both with unlimited accuracy.