Thursday, October 9, 2014

Why not translated into the Google Glass?

Why not translated into the Google Glass?

To use this application (currently only available in English), simply say "OK Glass, Recognize this" ( "Glass OK, admit it" ) and to take his smartphone near the person you are talking to that the transcription of words appears on the display of his glasses.

"This system allows us to focus on the movements of the face and gestures of their interlocutor, told CNet Professor Jim Foley, one of the project participants. If people hard of hearing include the statement, conversation can continue without having to wait for the subtitle.
http://eterna.stanford.edu/web/player/185759/
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However, if I missed a word I can take a look at the transcript, read one or two words I need, and return to my conversation."

Ultimately, the research team would like to go further than simple transcription conversation also incorporating simultaneous translation. In the meantime, you can download it for subtitling in English only on the site Google Glass.

Friday, August 15, 2014

The Mach-Zehnder interferometer

Wojciech Hubert Zurek and Hans Dieter Zeh were of a different opinion and, in the 1970s, they proposed a solution within the framework of what the theory of decoherence, verified in 1996 by known today Nobel Prize in Physics Serge Haroche and colleagues.

Yakir Aharonov physicist and his eternal cigar.  © Hayadan.org

There are many other paradoxes and puzzles in quantum physics especially when one tries to find out what exactly measuring a characteristic of a quantum system and what it reveals. Physicists are still very divided on this issue and some, like Max Tegmark , prefer to think in the context of the interpretation of Everett called multiple rather than one built in 1927 by Bohr, Heisenberg and Born worlds.

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Two years ago, the famous Yakir Aharonov and his colleagues had suggested another thought experiment designed to probe more deeply the mysteries of quantum theory and its predictions in some situations. Physicists at that time were introducing the concept of the quantum Cheshire cat . This is, of course, a blink of an eye the cat that appears in the famous novel Alice in Wonderland by Lewis Carroll.

The Mach-Zehnder interferometer

Reasoning researchers confirmed that the quantum world is as surreal as the universe of Carroll. In the latter, the Cheshire Cat has the ability to disappear leaving temporarily float in the air as her smile, which is so divorced from the animal. According to Aharonov and his colleagues, if we took a photon (quantum cat) and its polarization state (smile), it is possible to use an interferometer Mach-Zehnder interferometer to measure in a place to not be a photon , its polarization. In other words, an experiment with a quantum Cheshire cat somehow uses two detectors, one of which measures the presence of a photon in one place while its polarization is measured by another detector, in a place where it can not be found.

When Alice's cat into the country quantum wonders

When Alice's cat into the country quantum wonders

Physicists like to give original names to certain physical phenomena that appear strange and captivate the imagination, such as twins or Langevin Schrödinger's cat. An experiment that was conducted shows that one can separate in space, a neutron spin her like the smile of the cat 's Alice in Wonderland can separate from the animal invented by Lewis Carroll. There are many cats that quantum Cheshire called.

A representation of the Cheshire Cat, the famous feline Alice in Wonderland.  It now becomes the symbol of an experiment in quantum physics that has just been completed.  This shows that the quantum world is just as strange as that of Alice.  So he took the side of the famous Schrödinger cat.  © Leon Filter

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The paradox of Schrödinger's cat was originally a thought experiment designed to demonstrate that the magical laws of quantum physics involved a cat can be both alive and dead in some circumstances. When he proposed in 1935, Erwin Schrödinger wanted to show that the mysteries of the wave-particle duality and the quantification of the energy of physical systems were incompletely resolved by the so-called Copenhagen interpretation of equations of quantum mechanics . Like Einstein , he thought something was missing and that they were only approximations of the true quantum laws.

Octopus: 53 months for hatching eggs

53 months for hatching eggs

During the 53 months of incubation, the mother had to ensure that the eggs are bathed continuously in a well-oxygenated water, and prevent them from being covered with mud. It was also protected from predators . During that time, researchers have never seen the female to leave her eggs or feed. Instead, it did not seem to be interested in small crabs or shrimp around her, she lost weight and her skin became paler and loose.

Small hatched: the eggs are empty in this picture.
All eggs hatched © 2014 Robison et al. Plos One, cc by 4.0

This is not surprising in these cephalopods : Most octopus females lay only once in their life and usually die shortly after hatching. During brooding, octopus stop eating or drastically reduce their food intake. Here, scientists had no evidence that the animal was feeding during breeding. That's why they were wondering how the octopus was able to live so long, while low temperatures and inactivity lead to energy needs rather weak.

A rather long life expectancy
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For kids there are of course advantages to being incubated so long: these octopuses have no larval stage to hatching, they are able to survive by themselves and hunt small prey. From the point of view of evolution, the species would have found a balance between the benefits of a slow development and the ability of the mother to survive for years with very little food, if at all.

But this research also suggests a fairly long shelf life for this species: it could be one of cephalopods living as long as most octopuses generally live a year or two. For the researchers, "the brooding also provides an extension of the life of an adult far exceeds most projections of longevity cephalopods".

Record: a mother octopus incubates the eggs over 4 years

Record: a mother octopus incubates the eggs over 4 years

That would be a record in the animal world: an octopus from the ocean floor looks after her eggs for more than 4 years, small putting years to develop. The fate of such a super mom is inevitably death.

The Graneledone boreopacific mom, pictured here, lived in Monterey Canyon, off California.  © 2014 Robison et al. PLOS One, cc by 4.0

Taking care of her eggs for 4 years by eating very little, if at all, this may seem impossible. Yet that is what would an octopus Abyss. In the cold, dark waters underwater , metabolic processes are often long indeed. Therefore embryonic development could be very slow, but to what extent? Researchers at the University of Rhode Island and Monterey Bay Aquarium Research Institute had the opportunity to observe the nesting of an octopus in Monterey Bay, off the coast of California. They describe their observations in an article published in Plos One.

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In May 2007, during an exploration into the canyon of Monterey, the researchers found an octopus female of the species Graneledone boreopacifica clinging to a rock face at 1,397 m depth currently monitoring her eggs. Subsequently, the researchers went back to inspect this place 18 times in four and a half years. Each time, they found the same recognizable octopus with its scars on the body. Gradually, eggs swelled and young octopuses grew.

The researchers saw the mother for the last time in September 2011 One month later, she was gone, leaving behind about 160 empty egg capsules. Therefore, it would have hatched eggs for about four and a half years, or longer than any animal known to date.

In short: a penguin - fossil - 2m found in Antarctica

In short: a penguin - fossil - 2m found in Antarctica

Current record size for a penguin: 2 m to 115 kg. Pet name: Palaeeudyptes klekowskii . Habitat: the Antarctic Peninsula there are 40 million years.

Emperor penguins (often mistakenly baptized penguins), here at a young age, are the biggest current auks, a family which includes including puffins, guillemots, razorbills and the late great auk (destroyed in the nineteenth century) .  © Hannes Grobe / AWI, Wikipedia, cc by 3.0

An Argentine team Museum of La Plata has been lucky exploring the island of Seymour, at the end of the peninsula Antarctica , near the James Ross Island . In 2012, paleontologists have discovered the remains of thousands of penguin fossils dated from 37 to 40 million years. Recently, Acosta Hospitaleche and Marcelo Reguero, members of the museum team from La Plata, described the skeleton of a giant penguin , belonging to a species already known Palaeeudyptes klekowskii most comprehensive to date.

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"It was a wonderful time for the penguins , who was represented by 10-14 species on the Antarctic coast, " she explained to New Scientist . The researcher announced studying additional bone, belonging to the wing and foot, and especially great. Comparing with other species skeletons fossil , Acosta Hospitaleche estimates the size of the animal to 2 m and weight 115 kg.

If these values ​​are confirmed (for the proportions of skeletal bone may vary from one species to another, particularly over such long periods), so that P klekowskii would be the largest known but it is not alone in its class penguin. The fossil record has provided several species in stature and nose long and pointed. Found in New Zealand, Kairuku grebneffi reached 1.30 meters at Peru Icadyptes salasi measured 1.50 m. With 46 kg, 1.25 m and a short beak, the emperor penguin , the largest current auks seems puny.

Thursday, August 14, 2014

the formation of intestinal carcinoma

The researchers therefore administered orally , 3 mg / kg to mice that developed capsaicin many gastrointestinal tumors. Result: taking capsaicin inhibited the activation of the EGF receptor and suppressed the proliferation of cells epithelial. The treatment also allowed the mice to live longer, with a gain of about 30% in the life. The treatment was even more effective when combined with the celecoxib drug anti-inflammatory non-steroidal inhibitor of COX-2, used in the treatment of pain and symptoms of osteoarthritis .

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Therefore, capsaicin eliminate intestinal tumors by stimulating the TRPV1 receptor. For Eyal Raz, "our data suggest that people at high risk of developing recurrent intestinal tumors could benefit from the chronic activation of TRPV1" . The researchers therefore propose to administer TRPV1 agonists (such as capsaicin) with a COX-2 inhibitor to prevent the formation of intestinal carcinoma.

The active capsaicin receptor TRPV1

But what is TRPV1 while on the cells of the intestinal epithelium? Its action is linked to that of the EGF ( epidermal growth factor ) , an important receptor in the intestinal proliferation. Here, the researchers used a mouse model that made ​​a lot of neoplasia bowel. TRPV1 their deficiency increased the formation of adenomas , which allows the main author of the article Petrus de Jong, to assert that "the epithelial TRPV1 molecule normally functions as a tumor suppressor in the gut" . For researchers, the signal would control TRPV1 receptor growth factors , such as the EGF receptor.

Mice that are many intestinal tumors survive longer with capsaicin (red) than without (blue). However, if they do not express TRPV1 (black), they survive even worse. © de Jong et al, Journal of Clinical Investigation .

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The active capsaicin receptor TRPV1

These studies also suggest that capsaicin , a molecule present in peppers, irritating animals could suppress intestinal tumors. This causes a burning sensation when in contact with tissue. Biochemical point of view, this is actually a agonist of TRPV1: it would bind to the receptor and activate as if it were its ligand usual.

Chili would be beneficial against colorectal cancer

Chili would be beneficial against colorectal cancer

Capsaicin, a molecule present in peppers, inhibit the formation of colorectal tumors. This could be through the activation of TRPV1, a protein present on cells of the intestinal epithelium.

Peppers contain capsaicin, a molecule that could prevent intestinal tumors. © NG Ramesh, flickr, cc by sa 2.0

The intestinal epithelium has to renew itself rapidly characteristic. But if the pathways that control this regeneration are disordered, the tumors can develop. This is why research is concerned with molecules capable of preventing the loss of control causing cell proliferation that cause cancer colorectal .

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In an article published in the  Journal of Clinical Investigation , researchers from the University of California provide new information in this area. They studied a protein present on the cells of the epithelial intestinal canal to ions Ca called TRPV1. He had been found on neurons sense where it seems to play a role in the detection of pain generated by heat, acidity and spicy products are for Eyal Raz, a professor of medicine and author of the study "potentially harmful stimuli for the cell. Thus, TRPV1 has been briefly described as a pain molecular receptor ".

All Wi-Fi devices could help them see through walls

Of robots equipped with this technology could include browse rubble after accidents or natural disasters to search for survivors. The robots work in tandem using a mapping algorithm and simultaneous localization (English Simultaneous Localization And Mapping , or SLAM) working on the fly. Alternatively, a device on one side of a structure transmits a wireless signal while the other, on the opposite side picks up the signal. Radio waves passing through the unknown area, the objects therein attenuate the signal differently depending on their position and composition.

To see through walls, the robots use a mapping algorithm and simultaneous localization. The image at the center shows the sectional view of the structure. The right image shows what the robots see. The percentage represents the number of records Wi-Fi compared to the total number of pixels unknown. © UC Santa Barbara

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By measuring these variations with a wave propagation model that the system can map a content structure and determining where the solid objects and blank spaces. To improve the resolution of the images, the team from UC Santa Barbara with his robots with directional antennas. The system, which can be seen demonstrated in this  YouTube video , is not limited to robots. "  This technology can be integrated with any Wi-Fi device , "the researchers explain. It could be used with a Wi-Fi network fixed and then be used to monitor a building or a room to detect intrusions or estimate the number of occupants, for example, adjust the temperature.

Researchers still cite other possible uses for archaeological research or to detect and classify objects without touching a structure. Development work is ongoing to develop other applications and develop technology. Including references to associate the system to guide laser to improve spatial accuracy and resolution of the mapping.

Robots see through walls using the Wi-Fi

Robots see through walls using the Wi-Fi

Robots created by a team of researchers from the University of California at Santa Barbara can see through walls and detect objects that are behind using only a Wi-Fi signal. This technology opens the way to many applications from rescue missions to building security through detection and archeology.

Researchers at the University of California at Santa Barbara have developed what they call a "system of X-ray vision", which does not work at all in the X but uses radio waves Wi-Fi network. These two robots can identify hidden by the metal barrel concrete enclosure.  They alternate transmission and reception of Wi-Fi signal which they analyze changes to determine the position but also the composition of objects.  In this image, the red zone materializes perimeter that robots do not know (unknown volume).  © UC Santa Barbara

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Imagine robotic vehicles before arriving thick walls in concrete . They have no knowledge of what is behind, yet they are able to see through and detect any object they mask, all through a simple signal Wi-Fi . This technology, known as  X-ray vision for robots with WiFi only , has been developed and patented by a team of researchers from the University of California at Santa Barbara. It allows, despite a partition, to identify the objects, their positions, their geometry and also to determine whether it is a human, an object of metal or wood . By itself, the technique is not new. A method of imaging radio had already been shown in 2009.

Friday, August 1, 2014

Graphene material of the future of electronics, is revealed

Graphene material of the future of electronics, is revealed

It seems likely that the control of graphene is one of the fundamental keys to the nanotechnology revolution, justifying a research effort on a global scale. An international team has just succeeded with a novel technique to study the properties of this curious material to tiny size, about the size of a few atoms. Begin to imagine what the electronics of tomorrow.

On 31/07/2014 at 15:32 - By Laurent Sacco,

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A representation of the honeycomb structure of a graphene sheet. The graphite rod is of a stack our such structures is that the thickness of a carbon atom. © Jannik Meyer

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Europe devotes a billion euros in research on graphene . This material some call miraculous initially seems very trivial. It is simply a sheet consisting of a single layer of atoms of carbon arranged in a crystal lattice hexagonal. It is obtained by exfoliation of graphite . Equipped with electrical properties and resistance mechanical outsized make a serious competitor silicon, it would build computers with display on a single sheet of material plastic roll. One can imagine using it to give concrete existence the concept mobile phone from Nokia, the famous Morph . The graphene also has great potential for spintronics .

80% of products were not clamoring words strong password

Of fallible authorization system. 80% of products were not clamoring words strong password and identifiers were also used to online services and mobile applications.
Default encryption of communications. 70% of these objects are not connected amounted communications over a local network or Internet . This is one of the more disturbing given that a number of sensitive data flows in this manner.

Online interfaces poorly secured. Six out of ten devices were problems in this area, whether default credential too weak or transmitted in the clear.

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Inadequate protection software. 60% of the products tested did not use encryption to download software updates. HP says that some downloads could be intercepted and recovered as files in Linux to be read and not modified.

If the observation made by HP seems rather severe, it is above all a good way to praise the qualities of its own security solution Fortify on Demand. The study also concludes on an optimistic note by saying that there is still enough time to address these issues before the connected devices become a mass market.

HP has used its own platform online

But there is one aspect still little or no reference: the safety of these products. How does a refrigerator , a surveillance camera or a connected TV are they protected against viruses and hackers? The giant Hewlett-Packard (or HP) conducted a study on this subject whose findings are troubling for many. 70% of connected objects evaluated had numerous vulnerabilities that could be easily exploited.

Smart TV are among the most popular items connected tested in the study by HP.  The manufacturer claims to have found an average of 25 vulnerabilities per test unit.  © Sony

25 vulnerabilities per test unit
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The study looked at a wide range of connected televisions, cameras , home automation accessories ( thermostats , electrical outlets, locks, alarms, doors automatic ...) boxes multi-device control. The majority of these products with services operated cloud and all were using mobile applications to access and control remotely. HP has used its own platform online Fortify on Demand for scanner ten connected objects among the most common and found an average of 25 faults of safety device. Technicians have identified five types of problems:

Terms of insufficient data. Eight out of ten devices were mismanaging the confidentiality of information provided by the user, such as name, email or postal address, date of birth, credit card information or health data. And 90% of the tested devices were collecting at least one personal information via the product itself, the service cloud or implementing mobile.

According to HP, 70% of connected objects contain security flaws

According to HP, 70% of connected objects contain security flaws

While the wave of connected objects is just beginning, Hewlett-Packard wanted to assess the security level of the most common appliances such as televisions, appliances or home automation accessories. Conclusion: 70% of them would present numerous vulnerabilities that could be easily exploited by hackers ...

On 31/07/2014 at 17:29 - By Marc Zaffagni, Futura-Sciences
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The Internet of things wants to transform a large number of household appliances (TV, refrigerator, washing machine ...) to make communicating and controlled remotely.  But are they adequately protected against possible cyber attacks?  © LG

The Internet of Things is the buzzword that promises a future in which we live surrounded by sensors and electronic devices can communicate with them and be controlled remotely. We speak of televisions, appliances , sensors and devices automation connected, clothing and smart accessories. This represents a market with enormous growth potential, which marks the second chapter of the mobile revolution after that of smartphones and tablets . One projection firm Gartner on 2020, the installed base of connected objects represent 26 billion units for a total turnover of 300 billion dollars. What whet the appetite of manufacturers that take a source of growth for the next decade.

Milk older than 40,000 years mammoth!

Khroma was however found in poorer condition than Lyuba. She remained preserved in the permafrost in a vertical position so that when it was found, predators such as foxes Arctic had removed parts of his trunk and his head , and the lump of fat that should probably cover the back of his neck. The scanner revealed that the size of the brain of Khroma was slightly lower than that of a baby elephant of the same age, suggesting the hypothesis that the time of gestation at the mammoths was shorter than for elephants .

The conservation status of soft tissues is such that researchers do not hesitate to talk about mummies for the two bodies. We can study the muscles, connective tissue, organs and skin of woolly mammoths. We are even able to reconstruct the likely scenario of their dead.

Milk older than 40,000 years mammoth!
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In the case of Lyuba, it was not even necessary to use the data provided by the industrial scanner Ford factory in Michigan where she was examined. Of sediment for blocking his trunk, throat and bronchi . She would be dead by suffocation inhaling mud. This suggests that it should be crossing a lake, walking on the frozen surface when the ice gave way under his weight. In support of this hypothesis, it was found in these sediments a mineral called vivianite that forms in cold, oxygen-poor environments such precisely the lake bottom.

For Khroma, coarser sediments were found again in his trunk and throat, but unfortunately not in his lungs , not preserved. His spine fractured indicates a fall. This suggests that it was close to a river and a collapse of the bank was precipitated in water. Remarkably, his stomach contained very well preserved undigested milk and having the appearance of a yogurt leftovers. His mother was breastfeeding within an hour before his death, the researchers said.

In any event, Lyuba and Khroma is now a sort of Rosetta stone that will help paleontologists to decipher the remains of other woolly mammoths that can be found in the permafrost of Arctic Siberia. As one is older by about one month than the other, they give us both an overview of the transformations of this species during their growth.

Khroma and Lyuba, The mummies of baby mammoth

Khroma , as it is called now, was not the only one to deliver some of the secrets of woolly mammoths using X. Another baby found by ranchers ray reindeer in May 2007, in the Yamal Peninsula on the banks of the river Yuribei in northwest Siberia was examined in the same way by a US team. It was a female named Lyuba, who died very young, about a month after her birth. A method of study of the growth of the teeth was determined that the two mammoths were born in the spring. They belonged to two separated by thousands of kilometers populations but have both lived here 40,000 years.

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Lyuba images taken using a scanner show the remarkable state of preservation of the baby mammoth whose death occurred between 30 and 35 days after birth. For Khroma, it is estimated that it was aged between 52 and 57 days when she died. © UM News Service, YouTube

Babies the best preserved mammoth ever found

Lyuba and Khroma proved to be the baby mammoth specimens most complete and best preserved ever found. A report on their study using scanners has recently been published jointly by Russian teams, French and United States in  the Journal of Paleontology .

Very well kept, two baby woolly mammoth reveal their secrets

Very well kept, two baby woolly mammoth reveal their secrets

Lyuba and Khroma are two baby mammoths found in Arctic permafrost in the late 2000s by an international team of paleontologists has drilled some of their secrets by means of X-ray The results of several years of study, along with 30 new images taken scanner, has just been published.

On 08/01/2014 at 08:34 - By Laurent Sacco, Futura-Sciences

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Mummy of Lyuba, a baby mammoth died there more than 40,000 years old, very well preserved by the cold of the arctic permafrost of Siberia.  To limit the damage from an autopsy, the female who was among the woolly mammoth was examined with a scanner.  © Francis Latreille

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The 5 th International Conference on Mammoths and their families was held in September 2010 in Le Puy-en-Velay was the occasion of the arrival in France of a special guest over the age of 40,000 years. A baby mammoth found in October 2008 near the Khroma River in the far north of Yakutia, northern Siberia. We first thought it was a young male who died two months after his birth, but the study of its anatomy by computed tomography using a scanner to X-rays , especially in the service radiology the Centre Hospitalier Emile Roux, showed that it was actually a female.

These holes they explain a feature of the landscape of the Yamal peninsula?

These holes they explain a feature of the landscape of the Yamal peninsula?

Scientists are very interested in this phenomenon and studies are conducted on the first crater discovered. According to Andrey Plekhanov at the Research Centre of the Arctic , this hole is formed there is one or two years. Teams work on images taken by satellites to determine. Shots have been made ​​since the interior of the cavity , which is about 70 m deep. The background, which was not achieved, appears filled with ice. It seeps from the lips of the crater, sinks to the bottom and then freezes. (See all the images in the three sections of the Siberian Times whose links are grouped at the bottom of this article.).

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The explanation of this phenomenon remains to be written. According to Andrey Plekhanov, there was no explosion, as has been said. The floor was thrown around the hole by "internal force" . The first possible cause is the unusually high temperature prevailing in the region this summer, as was already the case in 2012 and 2013, but nothing at the moment no reason to make this assumption a certainty. The researcher recalls a sense of the 1980s, since abandoned, that small lakes are typical of the peninsula Yamal , were formed by a phenomenon of the same type. He said that if these things happen from time to time for about 8,000 years, they could explain the landscape of this region.

Strange Holes close to the Yamal Peninsula

Reported by the same journal, two new holes were discovered by farmers reindeer , rare people to patronize these regions. One of them, a 15 m diameter, appeared a few hundred kilometers from the first, close to the Yamal Peninsula, across the Gulf of Ob, Taz in the district. According to nearby residents, he would have formed in September 2013 with an explosive noise. The third crater, meanwhile, was spotted much further on the Taimyr Peninsula, to the east and north. This crater forms a cone perfect, surrounding a central perforation of 4 m in diameter.

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The first hole was located on the Yamal Peninsula in northwestern Siberia, the Yamal-Nenets Autonomous District, near Bovanenkovo.  The second was located on the other side of the Gulf of Ob, near Antipayuta. Thumbnail in the upper right shows an enlargement of the region southeast of Bovanenko, we note that the peninsula is dotted with lakes of different sizes. & Nbsp; © Google Earth, Futura-Sciences


After two new holes in Siberia, the mystery remains

After two new holes in Siberia, the mystery remains

What's happening in the Siberian permafrost? After the first hole discovered in the Yamal Peninsula, two were spotted by reindeer herders in neighboring regions. Scientists have not yet chosen among possible hypotheses, but soil warming in principle frozen, probably plays a role.

On 08/01/2014 at 11:27 - By Jean-Luc Goudet, Futura-Sciences

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Hole No. 2, in the order of their discovery, appeared near the town of Antipayuta on the Gulf of Ob, several hundred kilometers from the first.  Its diameter is about 15 m.  © Press Office of the Governor YaNAO

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How many holes? This is the question posed in Siberia for several days. On July 15, the newspaper Siberian Times unveiled images of a curious crater formed in the peninsula Yamal, the "end of the world" in the local dialect, northwest Siberia, washed by the Kara Sea. Opening with clean edges, opening onto a large underground cavity, appeared in the ground which usually remains frozen throughout the year (the permafrost or permafrost in English), not far from one of the largest deposits gas Europe.

Monday, July 28, 2014

Escherichia coli uses sodium to build structures

Bacteria well protected in salt crystals
NATURE & ENVIRONMENT | Comment
Escherichia coli  uses sodium to build structures where it remains dormant. A little water is enough to wake her.
Bacteria well protected in salt crystals

Grafted liver cells at birth, okay Nazdana
HEALTH | Comment
A small Canadian who received an experimental treatment against a disorder of the urea cycle at birth is doing well two years later.
Grafted liver cells at birth, okay Nazdana

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After the high-tech and robotics, Google invests in genetics
HIGH-TECH
Erwan Lecomte
By Erwan Lecomte
Sciences et Avenir
While the research division of Google X wants to make the "Big Data" with the human body, back to the crazy diversification of the American giant.
After the high-tech and robotics, Google invests in genetics

Eating cat, is it reasonable?
NATURE & ENVIRONMENT | 1 comment
In Vietnam, yes. Meat "little tigers", although officially illegal, is prized by gourmets.
Eating cat, is it reasonable?

Ebola virus: the epidemic passes a new frontier
HEALTH | Comment
The Ebola epidemic in the West Africa continues to spread. Nigeria has recorded its first case as the capital of Sierra Leone.

Water is it too expensive?

This initiative accompanies Sciences et Avenir continues in early July with the launch of a poster contest open to all. Those chosen by a jury will be rewarded with the DVD set of the complete series Kaamelott autographed by Jacques Chambon and Franck Pitiot (Merlin and Perceval in the series).

SERIES. Both actors are involved in this effect GRAIE campaign by starring in a web series (see "reading on the same topic" at the top of this article). The winners will also be invited to attend a day of filming Season 2 in September.

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READ A web series on water management
The illustrations are intended to enrich the seven subjects conflict with Medley in season 1:

  • Water is it too expensive?
  • Why must leave space to the rivers in cities?
  • Are there too many pesticides in aquatic environments?
  • Will we run out of water in France?
  • Drugs in water are dangerous?
  • Should we send all stormwater to treatment plants?
  • A dam is it the solution to remove the risk of flooding?

To learn more about the contest, visit the website of Mix & Match.

Thurs Get full Kaamelott informing you on the water

Thurs Get full Kaamelott informing you on the water
Erwan Lecomte By Erwan Lecomte
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Posted on 26-07-2014 at 15:00
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The Water Information site "Mix & Match" launches competition illustrations (photos, drawings or slogans) to enrich his subjects associated with this resource.
Meli Meli Melo illustration contest Melo Meli Meli Melo illustration contest Melo

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CONTEST. Since May, the Research Group Rhône-Alpes on infrastructure and water (GRAIE), embarked on a campaign to inform the public about water.

This combination of 300 players involved in the management or use of this resource published at regular intervals articles and videos on the site  Meli-Melo , dedicated to this project.

the pathophysiology of Gaucher disease

READ Patients with rare diseases receive their sight
Subsituter the missing enzyme

TREATMENT. Evolution of the disease can lead to irreversible complications. Fortunately, treatment is available.

It consists of administering an infusion of the missing enzyme, every two weeks, to allow the metabolism of the affected person to function almost normally again and stop the accumulation of waste. There is talk of enzyme replacement therapy. Overall, it is well tolerated and has few side effects, according to VML association.

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DISCOVERY. Gaucher disease was discovered by Dr. Philippe Gaucher. This doctor has identified the disease for the first time in 1882 in a patient 32 years with splenomegaly (enlarged spleen). At that time, he thought he recognized a form of splenic tumor and had published his discovery in his doctoral thesis. It was not until 1965 that the pathophysiology of Gaucher disease has been elucidated.

The Symptoms of Gauche Disease

Pain, fatigue and bulkier bodies

CELL. Gaucher disease is a disease called "lysosomal storage". In the cell, contains the lysosome enzymes to degrade numerous organic molecules. Or an enzyme missing in patients with Gaucher: glucocerebrosidase. And this is not without consequences for these patients, since the most common conditions are pain, including bone crises, fatigue, the presence of enlarged spleen (splenomegaly) or an enlarged liver (hepatomegaly).

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Note that there are more than 50 lysosomal storage disease and Gaucher disease is the most common.

Comparison to a lysosome in a cell (macrophage) in a healthy and Gaucher said cell. © GaucherFrance

TRANSMISSION. Gaucher disease is a disease of genetic , autosomal recessive. This means that for a child is sick, both the father and mother must disclose the mutated allele. If only one of them passes him the mutated allele, then the child will not get sick.

Gaucher disease: what is it?

Gaucher disease: what is it?
Lise Loume By Lise Loume
See all Articles
Posted on 26-07-2014 11:00
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This July 26 is the first World Day of Gaucher disease. The opportunity to present this rare and little-known genetic condition.
Gaucher disease is characterized by the presence of a large time (hepatomegaly).  © GaucherFrance Gaucher disease is characterized by the presence of a large time (hepatomegaly). © GaucherFrance

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You probably have never heard of, and for good reason: Gaucher disease is rare. It affects 1 in 60,000 in the world.

On the occasion of World Day of Gaucher disease, the combination Overcoming the Lysosomal Diseases (VML) wants to raise awareness of this disease in France: how do they affect people in France? How is it spread? Is there a treatment? Elements of answer.

young salmon located Chanteuge (Haute-Loire)

PLAN. attempt to save the species, the France has set up a preservation plan  including a business continuity via erasures ecological thresholds, creating fish passage and rarely by the destruction of dams. That of Poutès in the Haute-Loire and should be dismantled in 2018.

The association manages wild salmon in turn a unit of reproduction of young salmon located Chanteuge (Haute-Loire), which is considered the largest salmon stocking in Europe. The marathon is an opportunity to remember the importance of a fish once so abundant that brought substantial income to residents of the Loire and the Allier .

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DECLINE. At the same time, the fish catch increased from 12,500 tonnes to 1,300 tonnes. Retail worrying decline disproportionately affects older who spent several winters at sea salmon Yet it is these individuals that return to spawn in the rivers where they were born.. In France, the Atlantic salmon is still present in fifty rivers, mainly on the Rhine and across the South Atlantic coast of Brittany in small coastal rivers Adour in the Basque country.

organization for the conservation of salmon

Meeting in Saint-Malo on June 6, the organization for the conservation of salmon in the North Atlantic  had painted a very alarming report on the status of stocks of this species. Over the past 30 years, stocks fell 75% in the North Atlantic. Within this ocean, there were 10 million salmon in the early 70s, there are more than 3.6 million today.

DECLINE. At the same time, the fish catch increased from 12,500 tonnes to 1,300 tonnes. Retail worrying decline disproportionately affects older who spent several winters at sea salmon Yet it is these individuals that return to spawn in the rivers where they were born..

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In France, the Atlantic salmon is still present in fifty rivers, mainly on the Rhine and across the South Atlantic coast of Brittany in small coastal rivers Adour in the Basque country.

Loire and Allier rivers are iconic for the migration of these fish that can no longer feed after returning freshwater than 1000 miles of streams. On the Loire, there were approximately 100,000 spawning salmon per year in the 19th century. They are less than 1,000 today.

They walked to save salmon

They walked to save salmon
Loïc Chauveau By Loïc Chauveau
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Posted on 26-07-2014 17:00
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Party Langeac (Allier), the marathon salmon ends. Its purpose? Educate residents about the dangers of loss of the last wild salmon Loire.
On the Loire, there were approximately 100,000 spawning salmon per year in the 19th century.  They are less than 1,000 today.  © National Conservation of wild salmon On the Loire, there were approximately 100,000 spawning salmon per year in the 19th century. They are less than 1,000 today. © National Conservation of wild salmon

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Smolts. For 15 days, walkers, runners and kayakers down the Loire to the mouth, as do the smolts, young salmon hurtling toward the ocean to spend their adult lives (see map below) .

Backed by ecologists Conservatories natural areas and permanent Centers for Environmental Initiatives (EIPC), the wild salmon Association wanted and remember the risks an iconic species of the rivers of Europe and the North America. The water pollution and barriers (dams, thresholds) impeding their migration, the species are in jeopardy at extremely low levels.

The program tonight? Dancing with the stats

The program tonight? Dancing with the stats
Olivier Lascar By Olivier Lascar
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Posted on 26-07-2014 19:00
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Here Statistics explained by modern dance: four short films to see on the blog "Statistically yours."
Explain statistics through dance.  Possible?  Judge for yourself ... © British Psychological Society Explain statistics through dance. Possible? Judge for yourself ... © British Psychological Society

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FAME. Demystifying statistics. This is the objective of the British Psychological Society   has produced four short films illustrating various statistical concepts through modern dance. Films that deal with the relationship, frequency distributions, sampling and standard error, and finally the variance.

The result? It is to see on the blog "Statistically yours" led by Avner Bar-Hen mathematician from the University Paris Descartes

Sunday, July 27, 2014

Treatment and certain medications can also cause hair loss

"Even just to pull your hair too tight at the time want menguncir hair can also cause hair loss," said Dr. Scwhartz. https://audioboo.fm/Kirvich The American Academy of Dermatology recommends to use a regular conditioner and limit the use of dryers and curling irons.

Treatment and certain medications can also cause hair loss. "We know that people who undergo chemotherapy and radiation-related cancer will experience hair loss, but not many people are talking about how antibiotics can cause hair loss," says Dr. Schwartz.

Other drugs that baldness is associated with blood thinners, https://dribbble.com/Kirgichstein beta-blockers, and blood pressure medication calcium channel blocker (calcium Channer-blockers), antidepressants, and non-steroidal anti-inflammatory for pain, including ibuprofen.

Stress can also cause hair loss. "Taking care of yourself will help your hair grow back," said Dr. Scwartz. Healthy diet, adequate sleep, and regular exercise is highly recommended.

Thyroid disorders also cause hair loss. http://hadanovich.deviantart.com/ "Most people who have thyroid problems hair lose," said Dr. Schwartz. Thinning hair, being rude, and rapid fatigue is a common sign of thyroid damage.

Overcoming Baldness Without Drugs

Overcoming Baldness Without Drugs

Bald hair loss hair loss is one of the classic problems that must be faced by both men and women. According to the American Academy of Dermatology, http://hadanovich.deviantart.com/ half of the number of bald men go bald at the age of 50 years.

Genes play a big role in this, and experts agree that not much can be done to baldness linked to genetic factors, although some medications can reduce the occurrence of hair loss. https://dribbble.com/Kirgichstein The most popular is minoxidil (Rogaine) and finasteride (Propecia), which are both quite effective but have serious side effects.

Even so, there are many causes of hair loss that you can control, says Dr. Schwartz, an author of Healthy Balance, women's health magazine. https://audioboo.fm/Kirvich Something as simple as changing the way the hair care can make the hair grow back.

Hair is dead, can be caused by overuse of tight braids. On the other hand, the use of chemical relaxers and other harsh treatment can cause hair loss.

Oats are a source of soluble fiber

Friday
Eat more vegetables from the family of legumes such as peas, lentils, and beans. https://audioboo.fm/Kirvich These foods are very good for people that high cholesterol levels. In addition to low-fat, vegetables are rich in essential nutrients such as iron, unsaturated fats, and vitamin B. Furthermore, these vegetables contain soluble fiber which can help lower cholesterol levels.

Saturday
Have breakfast with oatmeal. Oatmeal is rich in fiber foods are good for heart health. Oats contain essential nutrients such as iron, vitamin E, and vitamin B. https://dribbble.com/Kirgichstein Oats are a source of soluble fiber that can lower cholesterol levels and reduce the risk of heart disease.

Sunday
Eat nuts that contain unsaturated fats. http://hadanovich.deviantart.com/ Choose low-fat nuts like hazelnuts, walnuts, and almonds. As has been explained that foods containing unsaturated fats have the potential to reduce levels of bad cholesterol.

Reduce your intake of foods that contain unhealthy fats

Tuesday
Reduce your intake of foods that contain unhealthy fats, trans fats, and saturated fats can increase blood cholesterol levels. Limiting the intake of fast food and junk food is one way. http://hadanovich.deviantart.com/  In addition, choose healthy oils such as olive oil to replace butter, and choose also low-fat dairy products, and avoid poultry skin and fat from meat.

Wednesday
Cook food with olive oil, because oil contains monounsaturated fat which is healthy. This healthy oil oxidation threshold have higher when compared with other monounsaturated oils as well as more stable at high temperatures. https://dribbble.com/Kirgichstein This makes olive oil is more resistant to the formation of trans fat and hidrogenerasi. Monounsaturated fats can help reduce bad cholesterol levels in the blood.

Thursday
Consumption of garlic more. Research shows that garlic can reduce levels of bad cholesterol in the blood. Garlic also contribute to thin the blood, https://audioboo.fm/Kirvich which in turn may help reduce heart risk. Other studies have shown that in some countries the majority of the population has a habit of eating garlic every day are known to have a low risk of heart disease.

Wicked Ways of Lowering Cholesterol Levels In 7 Days

lower bad cholesterol an asset to be protected. Eating healthy foods and exercising regularly are some ways to take care of. https://audioboo.fm/Kirvich Contribute food causes health problems by 80 percent. One of the health problems that come from unhealthy food is the accumulation of bad cholesterol (LDL), where it can interfere with the smooth circulation of blood. If not managed properly, this cholesterol can cause health problems such as gallstones, hypertension, heart attack up.

Lowering bad cholesterol levels in 7 days

If the levels of bad cholesterol in your body has reached the danger, then you should start now thinking to lower it. As a way to overcome it is not too difficult. https://dribbble.com/Kirgichstein Here is a diet guide from Lisa Guy, a nutritionist, you can apply to reduce levels of bad cholesterol in just seven days. Here's the explanation.

Monday
On the first day you are advised to consume vegetables and fruits are rich in essential nutrients. http://hadanovich.deviantart.com/ Vegetables and fruits are rich in fiber which has the effect to absorb the bad cholesterol. Eat vegetables and fruits that vary each day so as not to get bored.