Senin, 24 November 2014

Biodiversity still erosion

The bluefin tuna , scientists find, themselves partly reconstituted in these two regions, which after negotiations led to the decision to an annual increase of 20% per year of the quota fishing allowed from 2015-2017. http://enjoycoloring.com/ Fishing will then reach 23 155 t in the year, this quota is, however, subject to verification of the status of stocks in 2016. In the western Atlantic, where stocks are very low, the ICCAT quota rose to 2,000 tons per year.

Biodiversity still erosion

The WWF, through the voice of Sergi Tudela, head for the association of Mediterranean Fisheries Programme, said he was "very concerned" by "the excessively rapid increase" , fearing that "the immense conservation efforts that have been undertaken in recent years can quickly disappear " . The association also regrets that the discussions had focused on quotas and not on illegal fishing.

At the same time, the IUCN http://enjoycoloring.com/tag/easy/ (International Union for Conservation of Nature), which keeps updating its famous Red List , just enroll in the "vulnerable" category the Pacific bluefin tuna (Thunnus orientalis), while he was previously in the "least concern" column. Clearly, it is considered threatened with extinction . Founded 50 years ago, the list now includes 76,199 species assessed, 22,413 of which are threatened with extinction. Fugu (Takifugu chinensis), fish prized Japanese, has seen its population decline by 99.99% in 40 years, says the IUCN.

Increase in fishing quotas for bluefin tuna in the Atlantic

Increase in fishing quotas for bluefin tuna in the Atlantic

Given the partial replacement of stocks after the restrictions of the past years, fishermen countries decided to back 20% per year the amount of catch for the next three years for bluefin tuna in the eastern Atlantic and throughout the Mediterranean. http://enjoycoloring.com/ As for the Pacific species is endangered.

In the eastern Atlantic and the Mediterranean, the fishermen will increase their catch by 20% per year over the next three years as inventories have started to increase.  Illegal, however, was not taken into account.

The nineteenth extraordinary meeting of the International Commission for the Conservation of Atlantic Tunas (ICCAT, or ICCAT , its English acronym) has just ended. She met in Genoa, Italy, representatives of 47 countries plus the European Union, http://enjoycoloring.com/tag/dolphin/ all the great fishing bluefin tuna in the Atlantic ( Atlantic bluefin tuna ), live in the ocean and the Mediterranean. The drastic decline in stocks led to reduced fishing quotas . In 2011-2012, there were 12,900 t per year for the Atlantic and the Mediterranean, and 1,750 t for the western Atlantic. The noose is loose (for fishermen) in 2013-2014 by a small increase with 13,500 t of taken this year in the east Atlantic and Mediterranean.

Find them before they find us

Find them before they find us

That said, if these cars burn a few meters into the atmosphere, some larger are not stopped and may cause damage. This is the case of meteorite Chelyabinsk . http://enjoycoloring.com/ In February 2013, the meteor passed through the Earth's atmosphere to explode just twenty kilometers altitude. From about 15 meters and weighing between 7 and 10,000 tons, it exploded near the Russian city of Chelyabinsk in the Urals, killing more than a thousand injured and significant damage. The energy then released was equivalent to 440-500 kt of TNT, an estimated thirty times the energy of the atomic bomb dropped on Hiroshima in August 1945.

At the time of the Internet and social networks, this impact had the merit of drawing public attention to the potential dangers of the fall of such celestial objects. http://enjoycoloring.com/tag/difficult/ The risk is taken very seriously by space agencies, which have engaged in extensive air monitoring programs to discover and catalog all the objects eventually could threaten the Earth, including those who come from the Earth and whose orbit cut of our planet (NEO). If the number of asteroids is estimated at 20 million 10 to 20 meters close to the Earth, only 500 of them are identified to date. In contrast , it is estimated to have recorded 96% of the thousand objects at least one kilometer near the Earth. Finally, NASA also wants to catalog 90% of small asteroid 140 meters in diameter less than 1 km, 25 times more than a kilometer.

A large meteorite falls every two weeks

A large meteorite falls every two weeks

According to a study from NASA, about 556 meteorite impact of at least one meter in diameter hit the Earth between 1994 and 2013. http://enjoycoloring.com/ These meteorites are certainly disintegrated on entering the atmosphere, but what retains NASA is the amount of energy radiated in the visible unobscured by each impact.

Each day, the Earth is bombarded by more than one hundred tonnes of dust particles. Every two weeks, it is a asteroid at least one meter in diameter that falls on Earth disintegrating fortunately in the atmosphere . This is what emerges from a study of NASA who has recorded 556 on a map the impacts of meteorites reported since 1994.

On this map, the size of orange dots (events diurnal ) and blue (events night ) is proportional to the energy radiated in the visible, which is measured in gigajoules (GJ). For example, the lowest point in an event of a gigajoule of energy radiated in the visible, equivalent to five tons of TNT about. http://enjoycoloring.com/tag/cute/ As for the point representing one hundred and ten thousand and a million gigajoules of energy, they correspond to the energy impact of about three hundred tons, eighteen thousand tons and a million tons of TNT.

Extrapolating the data contained on the size and frequency of falls, the study also estimates the damage would be likely to cause larger asteroids and what are the most dangerous for humans.

Android to test the system

A computer system can handle a volume of information and consider all possible outcomes in a way that is impossible for one person. So even if someone in the audience may have already seen a variation of this tour before, the AI can use psychological and mathematical principles to create many different versions and ensure to maintain the mystery  " http://enjoycoloring.com/ said Howard Williams, one of the researchers involved in this project.

This video is a demonstration application Phoney developed by Queen Mary University of London. It reproduces a magic trick that involves guessing the card chosen at random by a person, the smartphone plays the role of a magician.

Android to test the system

Around the magical puzzle is to assemble the parts to create geometric shapes and then to reassemble by removing some of these forms. http://enjoycoloring.com/tag/cowboy/ Several factors come into play, such as the size of the puzzle, the number of parts and shapes and configurations. Much data an algorithm can handle with ease. It is also possible to recreate the experience by downloading the kit named The 12 magicians of Osiris .

The team at Queen Mary University also established three applications that allow Android to play soothsayers with a smartphone . One of these applications, called Phoney , is finding the card randomly selected by a person (see video above). More impressive, another application called Crystal Ball can identify the word that a person mentally statement. These programs can be found on the app store Google Play, but they are paid, which is rather a shame for an academic project.

When the computer does magic tricks

When the computer does magic tricks

Researchers at Queen Mary University of London working on artificial intelligence have taught magic tricks to a computer. Using the basic rules of a card trick and a magical puzzle of how humans understand these towers, the machine was able to create variations. http://enjoycoloring.com/ A system that could play the assistants to the magicians.

Researchers at Queen Mary University of London working on artificial intelligence have developed an algorithm that can play tricks and propose novel variants.  © Queen Mary University of London

The magicians were they of concern to do? For the first time, a program of artificial intelligence has managed to reproduce magic tricks and especially to create novel variations. The experiment was developed by a team of researchers from Queen Mary University of London, who published the results of their work in the journal Frontiers in Psychology . http://enjoycoloring.com/tag/cool/ The magic in question were based on mathematical techniques, not of magic or other types of illusions. In this case, it is a magical puzzle of recreating geometric forms and a card trick where you have to guess the card chosen at random in a game.

Researchers have entered into their computer program the operating principles of the two towers which they added the results of experiments on how viewers understand. From these mathematical and psychological data, the algorithm was able to create several new variants of these two magic tricks . "

The natural wealth of karst

The natural wealth of karst

In 2010 there was a Franco-Chinese expedition led by Louis Deharveng, National Museum of Natural History in Paris. Of the 48 caves visited, 12 had populations Trechinae. http://enjoycoloring.com/ 103 samples were collected, including 10 different species, including 7 new.

The 7 kinds of species Dongodytes described include 3 Dongodytes strictly and 4 of the subgenus Dongodytodes . They are appointed Donglodytes elongatus , D. troglodytes , D. lani (in honor of Professor Jiahu Lan) D. (Dongodytodes) brevipenis (with aedeagus, that is to say, an organ of mating male, short), D. (Dongodytodes) jinzhuensis (named locality), D. (Dongodytodes) inexpectatus (which surprised the researchers!) and D. (Dongodytodes) yaophilus (for the Yao minority in these regions).

Dongodytes and became one of the genre 's richest among Trechinae underground in China. Species Dongodytes are distributed in a very limited area, http://enjoycoloring.com/tag/cartoon/ with Hongshui river that acts as a natural barrier in their distribution, a particularly interesting area for biodiversity: "this new discovery reveals the importance of karst Du'an as hotspot biological for Trechinae in China".