Jumat, 09 Oktober 2015

UK firms develop drone-freezing ray


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Three British companies have created a device to deter drones from entering sensitive areas by freezing them in mid-flight.
The Anti-UAV Defense System (Auds) works by covertly jamming a drone's signal, making it unresponsive.
After this disruption, the operator is likely to retrieve the drone believing that it has malfunctioned.
The system joins a host of recently announced technologies which can blast larger drones out of the sky.
A drone flying in sensitive airspace can be detected by the Auds radar and then sighted via a camera equipped with thermal imaging capabilities so that it can be targeted visually.
Then, a high-powered radio signal can be focused on the drone - essentially overriding the connection to whoever is operating it.
The whole process takes as little as 25 seconds, according to the manufacturers.

Radio jam

"It's a radio signal. There are a number of frequency bands that are used by all of the manufacturers," explained Paul Taylor of Enterprise Control Systems, which developed the product along with Blighter Surveillance Systems and Chess Dynamics.
"We transmit into those frequencies in the direction of the UAV using a directional antenna," he told the BBC.
"There's quite a lot of radio power on to the UAV - so much so that it can only hear our Auds signal."
The Auds operator can then choose to freeze the drone just for a short time - to convince its owner that there's something wrong with it - or for a longer period, until its battery dies and it crashes.
Auds has been tested in the UK, the USA and France, said Mr Taylor, and government organisations in all three countries had been involved in those tests.
Aviation authorities are increasingly concerned about nuisance hobbyists flying drones close to large aircraft at airports.
The US Federal Aviation Authority (FAA) is now receiving around 100 reports per month from pilots who have sighted drones within a five-mile radius of their aircraft.
Last year the sightings numbered only a few per month.
In response, the FAA recently signed an agreement to test new technology which detects drones and identifies the location of their operator.
A spokesman for UK's Civil Aviation Authority, however, told the BBC that the organisation was not likely to consider investigating similar technologies any time soon.
"It's not something that we really feel the need to be doing," he said. "Our focus is on educating consumers.
"We've had our rules in place for over six years now.
"The FAA are a little late to the party in many ways - they developed their regulations only recently."

Drone killers

Beyond simply halting a small quadcopter drone while in flight, there are also military grade weapons now available to blast larger UAVs out of the sky.
The US Army recently demonstrated a prototype weapon which fires special projectiles at UAVs to damage them.
These projectiles can be steered on approach to the drone, which is tracked on the ground with radar.
Once close enough, warheads on the projectiles can be detonated, theoretically destroying the target vehicle.
Alternatively, militaries around the world could also soon be swatting UAVs out of the air with lasers thanks to Boeing's Compact Laser Weapons System.
A recent video published on the company's YouTube profile shows the weapon in action as it burns through the tail of an airborne drone.
Although the technology might sound futuristic, earlier prototypes of so-called "beam weapons" were being tested as long ago as 1974.
It's taken decades of development for them to be considered viable weapon systems for the military today.

Senin, 05 Oktober 2015

Secrets of Music: People So Immune, Longevity, and ...


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Look at the beauty of nature and works of art such grandeur Grand Canyon as well as paintings on the ceiling of the Sistine Chapel, or listen to music that makes us shiver like the song Ave Maria Schubert's work was found to increase the body's defense system. Researchers from the University of California at Berkeley found that positive emotions, especially a sense of awe for the natural beauty, art, and spirituality of lower levels of cytokine proteins that trigger inflammation.

"This protein signals the immune system to work harder," said Jennifer Stellar, principal leader of the study, as quoted by Science Daily. This study he published in the journal Emotion.

Stellar said, the findings suggest that positive emotions associated with markers of good health. Although required to bring the body's defense cells to fight against disease, high levels of cytokines that indicate poor health, type two diabetes, heart disease, arthritis, and even Alzheimer's.

During this time, scientists believe a blend of sleep, eating, and exercise will boost the immune system. Studies of the University of California, Berkeley is the first study that shows that positive emotions also served to increase the immune system.

"Wonderful things that encourage a more healthy levels of cytokines that turned out to have a direct influence on the health and life expectancy," said a member of the research, Dacher Keltner.

In two separate experiments, more than 200 adults were questioned to what extent and when they feel positive emotions. Gum and cheek tissue samples of people who experience positive emotions that day had the lowest levels of cytokines.

This Toxins Detection Equipment Artificial Festive Offers Students Malang

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Students of the Faculty of Mathematics and Natural Sciences UB Malang, East Java, creating analytical tools for quantitative detection of cyanide levels in foods that are named Cyanide Test Kit.

"Cyanide including compounds that are toxic and can inhibit the distribution of oxygen in the body. These compounds can cause death in humans if consumed exceeds the limits of the maximum levels permitted by BPOM in just 15 minutes," said one member of the research team Luluil Maknun in Malang, Monday, October 5, 2015.

The fourth student was Hilda Emilia Fahriyani, Balamah Milda, Noerma July Azhari and Luluil Maknun. Based on the BPOM, 2006, he said, cyanide is allowed to enter into the body is not more than 1 mg / kg body weight.

Cyanide found in many foods, especially tubers, such as cassava, bamboo shoots, yam, and surly and analysis of cyanide in Indonesia has been using spectrophotometry, titrimetry, and argentometry which still includes tools imported from other countries.

Analysis using these tools are still fairly expensive, and it takes a long and complicated analysis because it takes special skills and hard to apply in the field.

However, with the guidance of Dr. Hermin Sulistyarti, four students were trying to overcome the dependence on imported tools and rapid analysis of cyanide by means of an alternative form of Cyanide Test Kit.

Cipta Karsa PKM team "Cyanide Test Kit" Analysis using the tool Cyanide Test Kit is done by dissolving the sample with a reagent to form a red solution.

The intensity of the red color formed then matched with the color comparator to indicate the concentration of cyanide in the sample.

Cyanide Test Kit student creations are sold at Rp 20 thousand to 60 times the analysis, at a price of Rp350 per analysis. The sensitivity of this instrument is quite high because it can detect levels of cyanide that is 0.04 ppm.

Within about 5 minutes, this tool is able to detect the presence of cyanide in the test sample. This tool can help rapid analysis in the field with the required sample mass of approximately 0.1 grams.

Cyanide is one of the most toxic poisons and quick reaction to the bodies of animals and humans. With a fairly small doses (0.5 to 2.5 mg.kg-1), cyanide can turn off almost all species of animals within a few minutes after taking it.

In humans, oral dose of cyanide can be deadly is 0.5 to 3.5 mg.kg-1 body weight (Food Standards Australia, 2008). Cyanide in low doses found in food products and other products such as in cigarettes, motor vehicle fumes and industrial waste.

The research result Cyanide Test Kit by four students of the Science Faculty have passed the selection to follow the National Student Science Week (Pimnas) to 28th 2015 which was organized by the Directorate General for Strengthening Research and Development (DG risbang) Ministry of Research, Technology and Higher Education (Kemenristekdikti) in Kendari on 5-10 October 2015.

Trio scientists rewarded the Nobel Prize in Medicine


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rio scientists from three different countries awarded the Nobel Prize for Medicine which was announced at the Karolinska Institute, Stockholm, Sweden, Monday, October 5, 2015. The scientists it was William Campbell of Ireland, Satoshi Omura of Japan, and Tu Youyou of China.

Campbell and Omura received the Nobel thanks to their research to develop a drug to treat roundworm parasite infection that causes onkosersiasis diseases or infections in the skin and eyes. The Tu develop drugs from herbs to combat malaria.

Nobel Committee declared the discovery of three scientists it is essential for mankind to face the disease that affects millions of people every year. "The impact of the drug to the improvement of human health has been invaluable," declared the Committee in its decision.

Omura find an antidote to the parasite in research through the collection of soil samples throughout Japan. He managed to isolate the bacterium Streptomyces avermitilis avermectin is the source of drugs for treating onkosersiasis or infections in the skin and eyes due to parasitic worms.

Campbell Moura enrich research and found that the bacterium Streptomyces avermitilis could also kill the parasites that attack livestock. He modified avermectin compounds become more effective ivermectin kills the larvae of the parasite.

Meanwhile, Tu developing antimalarial drugs by researching various herbs. The woman was discovered artemisinin compound of Artemisi annua plant capable of killing the malaria parasite in the early stages of growth. Tu is the 12th female scientists who managed to get the Nobel Prize in medicine.

Puzzle How to Eat Blue Whale Solved


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The blue whale is the largest creature on earth it is not surprising if the animal has a big appetite. But, how to eat a large creature in order to get enough food has not been known until now.

"We found that blue whales have a strategy complicated than keeping oxygen during quality prey to low and then spend a lot of oxygen when a lot of prey," lata Elliott Hazen, environmental researchers from the National Oceanic and Atmospheric Administration Fisheries' Southwest Fisheries Science Center and University of California Santa Cruz, as quoted by Reuters.

Researchers put trackers on more than 50 blue whales off the California coast. The tracking device to see their movement and their prey, namely krill, small crustaceans kind of shaped like a shrimp.

Based on research, blue whales do not eat haphazardly as long as it was calculated. They eat a lot when there are plenty of krill but not when the amount of krill bit by saving a backup oxygen for diving.

Blue whales filter krill from seawater with baleen plates in their mouths. The plates are made of keratin, which is also found in human fingernails. When eating, fast-moving whale and open mouth, insert prey-laden water up to 130 percent of its weight.

Throat bulging because of the water. He then uses the muscles in the throat and tongue to remove water from the mouth of the baleen plates that served to filter krill. Blue whales eat about four tons of krill every day.

"The Pope is much more actively assess their environment and exploit prey in a manner not previously known to increase the profits of energy acquisition," said environmental experts from the Marine Mammal Institute at Oregon State University Ari Friedlaender.

The new pope including hewam endangered due to hunting in the 20th century that made them almost extinct. Now there are about 10 thousand blue whales worldwide, reaching 30 meters in length and weighs 180 tons.

"Blue whales face a dangerous risk in the ocean, ranging from assault ships to human noise. For animals that are on the fence, it is very important to provide lots of prey and thus reproduce," said Hazen.

May 2016, appropriation of N219 Targeted Completed Aircraft

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Menristekdikti M. Nasir expressed manufacture N219 aircraft made in Indonesia is targeted to be completed production and certification in May 2016.

"Aircraft industry really had stopped, but I decided to be continued in order to connect the small islands and cities with a distance not too far away. The plane will be starting October 28, 2015," said M. Nasir.

Thereafter, further Nasir, the best result of cooperation Kemenristekdikti and the National Institute of Aeronautics and Space (LAPAN) is then equipped with the avionics system, followed by certification in February to March.

While Germany, said Nasir, also helped build R-80 aircraft developed by PT Regio Aviation Industries, a company owned Ilham Habibie, Indonesia's third President son BJ Habibie.

Location Tomb of Queen Neferiti So Historians debate

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High-resolution scan indicates the tomb of the king's childhood Ancient Egypt Tutankhamun, contains two secret rooms, one of which was thought to be the final resting place of Queen Nefertiti.

Egyptologist Nicholas Reeves, from England, said in a press conference in Cairo he believes the mausoleum of King Tutankhamun was filled by Nefertiti, experts thought was his stepmother, and he has been lying there for more than 3,000 years behind the space that separated the wall , as reported by the Telegraph pages.

Reeves said radar and thermal imagery, radar and thermal imaging, can help uncover the secret room hidden behind the tomb of Tutankhamun and what was behind it.

Egyptian Antiquities Minister Mamdouh al-Damaty said the next step is working on radar study that will begin one to three months.

Tut, died around 1323 BC. His tomb, which is equipped with a gold mask, discovered in the Valley of the Kings by British scientists Howard Carter in 1922.

Experts have long studied why the tomb of King Tut is smaller than the other pharaohs and why its shape more in line with the Egyptian queen at the time.

Egyptologists are still not sure where Nefertiti died and was buried. He is believed to have died while her husband was still in power, leading to the assumption he was buried at Amarna, a bust of him was found in 1912.

More recently, most experts, including Reeves, believes he outlived her husband Pharaoh Akhenatten, changed his name and probably ruled Egypt in a short time.

Reeves developed his theory of Nefertiti's tomb after studying the high-resolution scans showed that he believed the two secret chamber in the northern and western parts of the walls of the tomb of King Tut.

One room, according to him, is a storage area and another one containing the bodies of Nefertiti, whose name means "beautiful he has come".

But other archaeologists to be careful because the evidence is still lacking and other scientists believe the mummy of Nefertiti was found in 1898 and stored in the Egyptian Museum.

"The idea that one room may refer to the former tomb, say Nefertiti, still pure speculation," said Aidan Dodson, an expert on Egypt at Bristol University, told Reuters.

Damaty, who recently returned from a tour of the Valley of the Kings with Reeves and other experts, said he believes there is a secret room that may contain the bodies of royal women, chances are the mother of King Tut.

Nefertiti was the first wife of Pharaoh Akhenaten, who introduced monotheism in Egypt around the 14th century BC.

Many scientists say King Tut was the son of Akhenaten from his sister Kia.

Tutankhamun is believed to be married to his half sister Ankhesenamun, one of six daughters of Akhenaten and Nefertiti.

Nefertiti is said to live longer than her husband and ruled Egypt under the name Neferneferuaten.