entomologist discovered a new type of fly has been named the world's smallest flies. The study revealed, however, had the smallest flies decapitate other small insects, ants.
Flies were found by a team of researchers who are members of Thailand Inventory Group for Entomological Research Park. His discovery, published in the journal Annals of the Entomological Society of America July 2012 edition.
Fly species found Euryplatea named nanaknihali. The fly is a member of the first Euryplatea genus found in Asia. Flies a Phoriadae clan, clan known pemenggal consists flies ants.
Brian
V Brown, curator of insects at the Natural History Museum of Los
Angeles County, as quoted by The New York Times, Tuesday (07/03/2012),
said, "The flies are so small that it is hard to see with the naked eye
and has wings, eyes, and organ systems are complete. "
Nanaknihali Euryplatea size is only 0.4 mm. By
that measure, it flies 15 times smaller than a house fly, five times
more than the fruit fly, and even smaller than a grain of salt!
The flies have wings gray. As with other insects, females of this type also has an organ called an ovipositor jutting out makes it easier to lay eggs.
Euryplatea nanaknihali including parasitoid insects. Although small, this insect could decapitate ants bigger. Decapitate mechanism more complicated than imagined, not as simple as biting ants up the severed head.
As reported by LiveScience, Tuesday, parent insects will lay eggs in the ant's body. Fly eggs hatch into larvae, then migrate to the ant's head to feed the muscles used for opening and closing the mouth. The larvae will also eat ants brain. Eventually, the larvae dissolve the membrane which unites the head and body of the ant up the severed head.
"Here we show that even the smallest ant in parasitoid host system can not escape from parasitism," Brown said.
Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
Tuesday, September 25, 2012
Monday, September 24, 2012
Researchers Formulas Hair Pigtail shape to Award
The team of researchers from the United States and Britain are finding formulas form pigtails Ig Nobel award. The research won the award in the field of physics.
Ig Nobel science awards in this study is a more "down to earth" and glance seem silly. Awards are given in various areas include neuroscience, chemistry, anatomy, medicine and literature.
Despite sounding silly, research scientists who receive this award are very close to the daily life and also published in international scientific journals.
In addition to the discovery of the formula pigtail shape, award winning research is research that chimpanzees can recognize each other by just looking at the back and research why spilled coffee cup when driven.
Patrick Warren, a researcher from Unilever, was proud to receive this award. "I am pleased that little research activity is getting so much attention," he said.
"My field, statistical physics, is not something that many heard, so I'm very proud that we are doing something that is acceptable to others," he said as quoted by the BBC, Jumnat (21/09/2012).
The formula is found Warren and his colleagues called "Equation Form Pigtail Hair". According to the equation, the shape is determined by the fiber pigtails hair, stiffness, the effect of gravity, the hair kekeritingan.
Warren claimed, longstanding research. In the company, the hair becomes very important matter because Unilever manufactures many hair care products. However, this research could have broad implications.
"I also think that we can contribute to the wider field of animation. Hair, for example, is an object that is difficult to make natural in computer animation," he said.
Ig Nobel held on Thursday (09/20/2012) at Harvard's Sanders Theatre. This award is given to the the 22nd time. The award was initiated by the science humor magazine, Annals of Improbable Research.
Awards are always attended and delivered by Nobel laureates simple. Award recipients were given 60 seconds to say a few words after receiving the award. If so, a messenger girl would yell "boring".
Ig Nobel science awards in this study is a more "down to earth" and glance seem silly. Awards are given in various areas include neuroscience, chemistry, anatomy, medicine and literature.
Despite sounding silly, research scientists who receive this award are very close to the daily life and also published in international scientific journals.
In addition to the discovery of the formula pigtail shape, award winning research is research that chimpanzees can recognize each other by just looking at the back and research why spilled coffee cup when driven.
Patrick Warren, a researcher from Unilever, was proud to receive this award. "I am pleased that little research activity is getting so much attention," he said.
"My field, statistical physics, is not something that many heard, so I'm very proud that we are doing something that is acceptable to others," he said as quoted by the BBC, Jumnat (21/09/2012).
The formula is found Warren and his colleagues called "Equation Form Pigtail Hair". According to the equation, the shape is determined by the fiber pigtails hair, stiffness, the effect of gravity, the hair kekeritingan.
Warren claimed, longstanding research. In the company, the hair becomes very important matter because Unilever manufactures many hair care products. However, this research could have broad implications.
"I also think that we can contribute to the wider field of animation. Hair, for example, is an object that is difficult to make natural in computer animation," he said.
Ig Nobel held on Thursday (09/20/2012) at Harvard's Sanders Theatre. This award is given to the the 22nd time. The award was initiated by the science humor magazine, Annals of Improbable Research.
Awards are always attended and delivered by Nobel laureates simple. Award recipients were given 60 seconds to say a few words after receiving the award. If so, a messenger girl would yell "boring".
Intelligence nation increasingly revealed through the study of birds. Parrot
African gray has great verbal skills, scrub jay birds have a remarkable
memory, while the New Caledonian crow has the ability to use the
equipment. Now, the scientists succeeded in proving that the pigeons are also good at math.
According to a study conducted by Dr Damian Scarf and his team from the University of Otago, birds have the ability to count, sort abstract numbers from the smallest to the biggest, from 1 to 9. This result is surprising because similar capabilities previously thought to exist only in primates nation.The results showed that pigeons can understand that two is greater than one, and three is greater than two.
To obtain these results, the scientists initially trained pigeons with 35 sets of images set. Each with one, two, and three objects of different colors and shapes. Furthermore, pigeons are faced with a bigger set of objects without trained to examine whether they are still able to rank them.
The results showed that pigeons can understand that two is greater than one, and three is greater than two. Even without training, pigeons are also proven to understand that six is greater than five, and so on. This homing ability to match the ability of rhesus monkeys that had been studied by the same method in the 1990s.
"Our findings add to the evidence that the dove is a species of bird that has a great mental ability," says Scarf, Physorg quoted on Thursday (22/12/2011).
Research published in the journal Science on Thursday (22/12/2011), also provide evidence that the birds are not less intelligent primates.
Scarf, as described New York Times, said the ability of birds and primates in calculating obtained through evolution. The ancestors of birds and primates that lived 300 million years ago did have numeracy skills are then derived. Scarf bet, this ability is certainly beneficial for the two nations animal.
Scarf research published in the journal Science, published Friday (23/11/2011). Until now not known whether pigeons are able to develop a set of objects of larger amount, more than 9. However, research is still going to continue, including pigeons observe brain activity while it is counting.
According to a study conducted by Dr Damian Scarf and his team from the University of Otago, birds have the ability to count, sort abstract numbers from the smallest to the biggest, from 1 to 9. This result is surprising because similar capabilities previously thought to exist only in primates nation.The results showed that pigeons can understand that two is greater than one, and three is greater than two.
To obtain these results, the scientists initially trained pigeons with 35 sets of images set. Each with one, two, and three objects of different colors and shapes. Furthermore, pigeons are faced with a bigger set of objects without trained to examine whether they are still able to rank them.
The results showed that pigeons can understand that two is greater than one, and three is greater than two. Even without training, pigeons are also proven to understand that six is greater than five, and so on. This homing ability to match the ability of rhesus monkeys that had been studied by the same method in the 1990s.
"Our findings add to the evidence that the dove is a species of bird that has a great mental ability," says Scarf, Physorg quoted on Thursday (22/12/2011).
Research published in the journal Science on Thursday (22/12/2011), also provide evidence that the birds are not less intelligent primates.
Scarf, as described New York Times, said the ability of birds and primates in calculating obtained through evolution. The ancestors of birds and primates that lived 300 million years ago did have numeracy skills are then derived. Scarf bet, this ability is certainly beneficial for the two nations animal.
Scarf research published in the journal Science, published Friday (23/11/2011). Until now not known whether pigeons are able to develop a set of objects of larger amount, more than 9. However, research is still going to continue, including pigeons observe brain activity while it is counting.
Four Types of Leaf-nosed Bat Found
Researchers have identified four new species of horseshoe bats. Bats horseshoe bats are the ones that have a big nose shaped like a leaf.
Four species of bats identified berhabitat in eastern Africa. Initially, four are classified in one species named Rhinolophus hildebranditii. However, through research it is known that animals that had been classified in the species is actually divided into four distinct species.
Identify started after the reported difference in the frequency of the ultrasonic waves generated species. Bats produce ultrasonic sound waves to locate prey. The technique is called echolocation of bats. The difference in frequency of the alleged basis of species differences.
According to the study, four species that have been classified as type R. hildebranditii have differences in skull shape, frequency of calls, and DNA. Morphological differences are hard to see that this species is often called species complex.
Four species of bats identified himself this time include Cohen horseshoe bat (Rhinolophus cohenae) found in the Mpumalanga province of South Africa, Mount Mabu horseshoe bats (Rhinophus mabuensis) were found on Mount Mabu, Smither horseshoe bat (Rhinophus smithersi) are found in the north valley Mozambique and the Limpopo and Mozambique horseshoe bat (Rhinophus mossambicus) were found in the grass Zimbabwe and Mozambique.
These findings add to the diversity of types of horseshoe bats. Unique horseshoe bats because if other bats emit sonar from the mouth, bats emit sonar this type of nose. Nose width horseshoe bat is useful to help focus the sonar system.
Four species of bats identified berhabitat in eastern Africa. Initially, four are classified in one species named Rhinolophus hildebranditii. However, through research it is known that animals that had been classified in the species is actually divided into four distinct species.
Identify started after the reported difference in the frequency of the ultrasonic waves generated species. Bats produce ultrasonic sound waves to locate prey. The technique is called echolocation of bats. The difference in frequency of the alleged basis of species differences.
According to the study, four species that have been classified as type R. hildebranditii have differences in skull shape, frequency of calls, and DNA. Morphological differences are hard to see that this species is often called species complex.
Four species of bats identified himself this time include Cohen horseshoe bat (Rhinolophus cohenae) found in the Mpumalanga province of South Africa, Mount Mabu horseshoe bats (Rhinophus mabuensis) were found on Mount Mabu, Smither horseshoe bat (Rhinophus smithersi) are found in the north valley Mozambique and the Limpopo and Mozambique horseshoe bat (Rhinophus mossambicus) were found in the grass Zimbabwe and Mozambique.
These findings add to the diversity of types of horseshoe bats. Unique horseshoe bats because if other bats emit sonar from the mouth, bats emit sonar this type of nose. Nose width horseshoe bat is useful to help focus the sonar system.
Saturday, September 22, 2012
Shrinking Arctic Ocean ice To Record Low
Arctic sea ice has shrunk to the smallest surface area since the start of the recording. As a result, the world is now in a 'scenario never predictable' as the more intense the effects of climate change, according to U.S. scientists.
Satellite picture shows the ice had melted up to 3.4 million square kilometers as of 16 September, the lowest point this year.
This is the area of ice cover in the Arctic since the smallest on record in 1979, according to Snow and Ice Data Center National.
"Now we are in a situation that had never imagined," said agency director Mark Serreze said in a statement Wednesday.
"While we have long known that as the warming of the planet, the first change will be evident in the Arctic, but few of us know how to prepare for the rapid changes that are happening now."
Arctic ice is expanding and shrink with the seasons, and the lowest point usually occurs in September.
This year the full extent of the ice continues to shrink to its lowest point, the record had occurred on 26 August and 4 September.
And in two weeks, widespread melting ice cover reaches 517,997 square kilometers, a figure that is large enough for the end of summer.
According to the scientist Walt Meier, "The decline in ice cover are strong at the end of the summer to be an indication of how thin the ice is now."
"The ice is definitely very thin so that it can continue to melt at sunset and autumn comes."
The scientists use the arctic ice extent as a benchmark the overall climate. Apart from annual fluctuations due to natural weather variations, permafrost was apparent shrinking trend in the last 30 years, according to Snow and Ice Data Center National.
"The minimum level of this year nearly 50 percent lower than the 1979-2000 average," according to them.
The research center based in Colorado, said that the composition of the Arctic is changing. Moments before the ice remains frozen throughout the summer, now mostly melted and froze again as the seasons change.
"Twenty years from now in August, you might be able to board through the Arctic Ocean," said scientist Julienne Strove. Though the area is usually covered by ice all year round.
Various climate models predict "ice-free conditions" that occurred in 2050, but the decline of ice extent indicates that conditions could occur more quickly than expected.
The center has now warned that the heat and moisture from the melting Arctic icecap could carry global implications.
"It will gradually affect the climate in the area where we live," he said. "We have fewer polar polar, then there will be more variety and extreme (weather)."
Greenpeace environmental activists concerned about the announcement. They hope that this fact will lead to a sense of relief and the action slowed this trend.
"In just 30 years, we've changed how our planet looks from space., And now the Arctic soon will be ice-free in summer," said Greenpeace director Kumi Naidoo said in a statement.
"I hope that future generations will look at this day as a turning point, when the spirit of global cooperation appears to overcome the great challenges we experienced."
According to scientists, climate change occurred when carbon dioxide and other gases produced by humans appears to the atmosphere and makes it difficult planet to reflect heat back into space, causing the greenhouse effect.
Along with the melting of ice in Greenland, another greenhouse gas, methane trapped in permafrost were released into the air.
Methane comes from the remains of plants and animals that are trapped in the sediment and then terutup the ice in the last Ice Age.
Methane is 25 times more effective at trapping heat than carbon dioxide sunlight.
When methane is released into the atmosphere and the planet warmed again as the greenhouse effect, the more that will melt the ice again, and releasing more carbon into the air.
Satellite picture shows the ice had melted up to 3.4 million square kilometers as of 16 September, the lowest point this year.
This is the area of ice cover in the Arctic since the smallest on record in 1979, according to Snow and Ice Data Center National.
"Now we are in a situation that had never imagined," said agency director Mark Serreze said in a statement Wednesday.
"While we have long known that as the warming of the planet, the first change will be evident in the Arctic, but few of us know how to prepare for the rapid changes that are happening now."
Arctic ice is expanding and shrink with the seasons, and the lowest point usually occurs in September.
This year the full extent of the ice continues to shrink to its lowest point, the record had occurred on 26 August and 4 September.
And in two weeks, widespread melting ice cover reaches 517,997 square kilometers, a figure that is large enough for the end of summer.
According to the scientist Walt Meier, "The decline in ice cover are strong at the end of the summer to be an indication of how thin the ice is now."
"The ice is definitely very thin so that it can continue to melt at sunset and autumn comes."
The scientists use the arctic ice extent as a benchmark the overall climate. Apart from annual fluctuations due to natural weather variations, permafrost was apparent shrinking trend in the last 30 years, according to Snow and Ice Data Center National.
"The minimum level of this year nearly 50 percent lower than the 1979-2000 average," according to them.
The research center based in Colorado, said that the composition of the Arctic is changing. Moments before the ice remains frozen throughout the summer, now mostly melted and froze again as the seasons change.
"Twenty years from now in August, you might be able to board through the Arctic Ocean," said scientist Julienne Strove. Though the area is usually covered by ice all year round.
Various climate models predict "ice-free conditions" that occurred in 2050, but the decline of ice extent indicates that conditions could occur more quickly than expected.
The center has now warned that the heat and moisture from the melting Arctic icecap could carry global implications.
"It will gradually affect the climate in the area where we live," he said. "We have fewer polar polar, then there will be more variety and extreme (weather)."
Greenpeace environmental activists concerned about the announcement. They hope that this fact will lead to a sense of relief and the action slowed this trend.
"In just 30 years, we've changed how our planet looks from space., And now the Arctic soon will be ice-free in summer," said Greenpeace director Kumi Naidoo said in a statement.
"I hope that future generations will look at this day as a turning point, when the spirit of global cooperation appears to overcome the great challenges we experienced."
According to scientists, climate change occurred when carbon dioxide and other gases produced by humans appears to the atmosphere and makes it difficult planet to reflect heat back into space, causing the greenhouse effect.
Along with the melting of ice in Greenland, another greenhouse gas, methane trapped in permafrost were released into the air.
Methane comes from the remains of plants and animals that are trapped in the sediment and then terutup the ice in the last Ice Age.
Methane is 25 times more effective at trapping heat than carbon dioxide sunlight.
When methane is released into the atmosphere and the planet warmed again as the greenhouse effect, the more that will melt the ice again, and releasing more carbon into the air.
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