Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

New study says ocean chemistry changing quickly

http://news-updations.blogspot.com/A new study says that carbon dioxide (CO2) absorbed from the air is causing ocean chemistry to change faster than it has in 100s of 1000s of years.

The National Research Council (NRC) reports that, as the oceans get more acidic, coral reefs can be damaged and the change also threatens other sea life from fish to shellfish.

While most concern about CO2 and other gases released into the air by industrial processes has focused on rising temperatures, scientists have also become more and more alarmed by its potential impact on the oceans.

Penguin parents implement another zoo's chick

http://news-updations.blogspot.com/African penguins have implemented a chick that had trouble hatching, & then wasn't being minded for by its biological parents at another Colorado zoo.

Officials of the Denver Zoo said that the chick's new home, say it's doing well. The baby African penguin appeared from its shell at the Pueblo Zoo on March 20, but it was 2 days overdue & required some help from a staff worker to get outside.

When the biological parents come out unable to care for the hatchling, it was taken to Denver & placed with surrogate parents, who instantly start to feed it & keep it warm. African penguins once came close to loss & are listed as "vulnerable" by the International Union for the Conservation of Nature & Natural Resources.

Animals lives with no oxygen

http://news-updations.blogspot.com/An extensive variety of single-celled organisms that live anaerobically, or without oxygen, had been found in the past, regularly deep underwater or deep underground. But investigators had not recovered a multi-cellular or metazoan animal that did so until now- the giant tube worms that live by hydrothermal vents, for example, rely on dissolved oxygen.

The investigators were only expecting to see viruses, bacteria & other microbes. The bodies of multi-cellular animals had previously been exposed in these sediments, "but were thought to have sunk there from upper, oxygenated, waters," they said.

The turning point of the study "offers the tantalizing promise of metazoan life in other anoxic settings for case, in the subsurface ocean underneath hydrothermal vents, or subduction zones, or in other anoxic basins," Levin said, referring to the subduction zones where one slab of Earth called a tectonic plate dives beneath another & occasionally leads to earthquakes.

Geologist confirms Andaman aftershocks makes fears

http://news-updations.blogspot.com/The 6.6 magnitude earthquake strikes at north of the Andaman Islands on March 30. It makes one more confirmation that this particular area will continue to be source of severe earthquakes, says a leading Indian geologist.

They had warned that a segment of the “plate boundary fault” left unruptured after the deadly 2004 Andaman earthquake would be a source of high magnitude earthquakes.

After the 2004 earthquake in this region had already produced 2 powerful aftershocks in 2008 & 2009, & the March 30 earthquake was the 3rd. “Such intra-plate earthquakes occurring in the subducting India plate under the unruptured segment are a matter of concern,” he said.

The NGRI team had notified after analyzing the 2 major aftershocks in the Andaman region after the deadly 2004 quake that produced a tsunami.

NASA Investigating Nuclear Power fault on Next Mars Rover

http://news-updations.blogspot.com/NASA is trying to fix a power problem it discovered in the nuclear power plant of the $2.3 billion Mars Science Laboratory, the next rover scheduled to explore Mars, reports said.

NASA preparations to launch Curiosity in 2011; the rover received a new name after the agency conduct a countrywide student contest last year. But just recently, the agency revealed a "slightly faster than wait for degradation rate" in the rover's radioisotope thermoelectric generator, which will increase the craft's range & whole lifetime on the red planet.

The generator uses 10 pounds of plutonium dioxide, regularly plutonium-238, as a heat source, the report said. A NASA engineer said that the agency is now working with the Department of Energy to understand the dilemma. So far, the only expected collision is that the rover will required some additional operational workarounds during the Martian winter.

Discovery's Launch One Week Away

http://news-updations.blogspot.comToday at NASA's Kennedy Space Center in Florida, technicians at Launch Pad 39A are preparing space shuttle Discovery's reaction control system for pressurization of the main propulsion system for flight. The shuttle and crew are scheduled to liftoff April 5 at 6:21 a.m. EDT to begin the STS-131 mission to the International Space Station.

At NASA's Johnson Space Center in Houston, the astronauts continue slipping their sleep schedule in preparation for the mission. This afternoon, they will review procedures with the piston grip tool used during spacewalks.

Last Friday, NASA managers gave Discovery the "go" for launch after an all-day Flight Readiness Review meeting. At the review, they determined that there were no unresolved issues that would prevent Discovery and crew from flying a safe and successful mission.

Scientists check volcano explosion in Iceland

http://news-updations.blogspot.com/Scientists are check whether it’s safe or not to the people after the volcanic explosion in Iceland. Saturday night's explosion of the Eyjafjallajokull volcano which is situated close to the glacier of the similar name shot ash & melt lava into the air almost 500 people to leave their homes.

Some of them are allowed to return their home late Sunday, but close to the volcano explosion are not allowed to come back. Volcano Explosion caused some of the flights to be canceled because of the threat of in the air volcanic ash.

The last explosion close to this glacier came in 1821 that lasted gradually & constantly for 2 years.

Climate satellite launching process postponed

http://news-updations.blogspot.com/The European Space Agency (ESA) said it had set the date of Apr 8 for the delayed launch of CryoSat-2. It is designed to see how Earth's ice sheets respond to climate change.

In this satellite launch had been penciled for February 25, from Russia's Baikonur Cosmodrome in Kazakhstan. It was delayed to probe fears that the 2nd-stage engine's fuel reserve was not enough.

For the period of the investigation, the Ukrainian company responsible for the in general design of the Dnepr launcher, Yuzhnoye SDO, & the company that develops the launcher's control system, Hartron-Arkos, confirmed that the percentage of fuel to oxidiser could be adjusted to advance the performance of the 2nd stage engine,' ESA said in a press release.

'In this small change involved modifying the software that manages the fuel usage. The alterations have since been made & validated. Now the launch of satellite is scheduled on1357 GMT on Apr 8.

Bacteria left on crime scene could help to find criminal

http://news-updations.blogspot.com/In a study in Proceedings of the National Academy of Sciences, researchers find out colonies of bacteria that be alive on people's hands are highly personal to each & everyone.

That means forensic specialists could one day use those bacteria to prove who had touched an object. In adding to smudged fingerprints, the method may also be useful in determining who has touched things like fabrics & highly textured materials, the researchers said.

The average of human hand contains nearly 150 species of bacteria with only about 13 percent shared by any 2 people, Researchers found in previous studies.

Thalidomide outcome mystery solved

http://news-updations.blogspot.com/Scientists have revealed the major mechanism by which thalidomide causes abnormal limbs in rising embryos. This was recognized after thousands of infected children were born to mothers who had been given the drug for morning sickness.

In this research exposes that thalidomide binds to & renders inactive the protein cereblon, which is perform a key role in limb formation. This research could help the growth of safer thalidomide-like drugs.

The scientists complete their conclusion by using genetic techniques to decrease the production of the cereblon protein in up warding zebrafish & chick embryos.

Researchers find 2 different types of blood stem cells

http://news-updations.blogspot.com/All stem cells are not created equal, a new study finds. 2 different types of self-renewing blood cells have been marked in mice, muddying a simplistic sight of stem cell categories. Knowing how these dissimilar types of stem cells behave may help scientists better understand & treat blood diseases.

“The description of a stem cell, as you look closer, gets more complicated,” comments stem cell researcher Timm Schroeder for Environmental Health’s Institute of Stem Cell study in Neuherberg. The latest learn, appearing March 5 in Stem Cell, adds to a growing body of confirmation that “black & white classifications might not be right,” says Schroeder.

In the blood, millions of diverse cells die each & every second. To stay up with this loss, stem cells frequently divide to create the correct balance of cell types, which include oxygen-carrying red blood cells & a menagerie of immune cells.

For the longest time, peoples thought there was only one type of blood stem cell in the bone marrow that repeatedly replenished the blood system throughout the life of a person. Recent studies show that blood stem cells have distinct behaviors, but no one had been able to pinpoint the various kinds of cells. “We’re the first group to truly identify those using different markers,” Challen says.

New idea in fight against terror:the nose

http://news-updations.blogspot.com/Scientists say every human nose is as unique like a fingerprint & the latest computer scanner has been invented to recognize them. Dr Adrian Evans told that noses might be extra reliably recognized than fingerprints or irises because they were tougher to hide.

The lecturer at Bath University said that the latest scanning technique could use in the combat in opposition to terrorism, illegal immigration, & fraud, identity theft. The scanner, known as the Photo Face, works by taking 4 photos of the nose in quick sequence from dissimilar angles.

Photo Face analysis the images depending to 6 shapes that is Roman, Greek, Nubian, Hawk, Snub, & Turn-up. Dr Evans said: "Irises are a powerful biometric, but it can be hard to find accurately and can simply be obscured by eyelids or glasses.

Host star destroy extra-solar planet: Astronomers

http://www.news-updations.blogspot.com/BEIJING: A newly discovered extra-solar planet, which is almost double of Jupiter's volume, is being distorted & damaged by its host star, giving an exclusive chance to astronomers to examine how a planet go into final stage of its life.

An international team of astronomers has initiated that a massive planet 'WASP-12b', which was discovered in 2008, is being unclear & destroyed by its host star. "This is the 1st time that astronomers are witnessing the ongoing trouble & death march of a planet".

WASP-12b is 1 of the most enigmatic of 400-plus planets that have been established outside our solar system over the earlier period 15 years. It orbits a star, in the constellation Auriga, roughly similar in mass to our sun, told lead author Shu-lin Li from the National Astronomical Observatories of China.

It’s also bigger than astrophysical models would predict. Its mass is calculated to be nearly 50 % larger than Jupiter's & 80 % larger than Jupiter's volume. It is also abnormally hot, with a daytime temperature of more than 2500°C.

GOES-P Mission

http://news-updations.blogspot.com/The Geostationary Operational Environmental Satellite (GOES)-P represents a continuation of the newest generation of environmental satellites built by Boeing for the National Oceanic and Atmospheric Administration (NOAA) under the technical guidance and project management of NASA's Goddard Space Flight Center, Greenbelt, Md.

GOES satellites provide the familiar weather pictures seen on United States television newscasts every day. The GOES imaging and sounding instruments (built by ITT) feature flexible scans for small-scale area viewing in regions of the visible and infrared spectrum allowing meteorologists to improve short-term forecasts. GOES provides nearly continuous imaging and sounding, which allow forecasters to better measure changes in atmospheric temperature and moisture distributions and hence increase the accuracy of their forecasts.

GOES environmental information is used for a host of applications, including weather monitoring and prediction models, ocean temperatures and moisture locations, climate studies, cryosphere (ice, snow, glaciers) detection and extent, land temperatures and crop conditions, and hazards detection.

The GOES-O & P Imagers have improved resolution. The finer spatial resolution allows an improved cloud-top product, better information on atmospheric motion and volcanic ash detection. GOES-P continues the improved image navigation and registration, additional power and fuel lifetime capability, space weather, solar x-ray imaging, search and rescue, and communication services as provided on GOES-13 and GOES-14.

Fear of spiders can develop before birth

http://www.news-updations.blogspot.com/<br />Scientists figure humans can be born with a fear of spiders & snakes, healthy phobias that up the odds of survival in the wild. It's not identified how such an inborn fear might develop, however. Now researchers have confirmed that unborn crickets can gain a fear of spiders based on their mother's disturbing experiences.

Scientists plant pregnant crickets into terrariums containing a wolf spider. The spiders' fangs were covered by wax so the spiders could stalk but not kill the pregnant crickets. After the crickets laid their eggs, the researchers compared the performance of the offspring with offspring whose mothers hadn't been out to spiders. The differences were dramatic, the scientists said.

The results of the cricket test advice that "the transfer of information from mother to offspring regarding predation risk, in the absence of any parental care, might be more common than one might think," told Jonathan Storm of the University of South Carolina Upstate in Spartanburg.

Fossils proof past sea changes

<br />http://www.news-updations.blogspot.com/Fossilised coral reefs in the Great Barrier Reef could help out scientists understand how sea levels have altered over the past 20,000 years. An international group of researchers will spend 45 days at sea, get-together core samples from about 40 sites.

Described as the "trees of the sea", coral have development rings that show seasonal variations. Researchers say the samples will also shed light going on past sea temperatures, as well as other changes toward the reef.

Alan Stevenson, team head of marine geology at the British Geological Survey (BGS), which is involved in the project, said the fossilised corals' annual growth rings provided an imminent to conditions under waves.

"We can then analyze those rings to build up an incredibly detailed picture of what the ocean was like when they were forming, with temperature and salinity.

New show lists 'most thrilling experiences

<br />http://www.news-updations.blogspot.com/Travellers who like great experiences might be interested in a new guide being released by Lonely Planet. The 1,000 definitive Experiences book covers events and activities all over the world that are sure to provide participants with a few long-lasting memories.

Along with the experiences in the top 10 is river rafting down the Zambezi, climbing the Sydney Harbour Bridge, swimming through sharks in South Africa and running with bulls in Pamplona, Spain. One more activity optional by Lonely Planet is swimming with dolphins at Kaikoura, off the shore of New Zealand's South isle.

Local company Dolphin Encounter takes visitors out on the water, allowing them 2 watch the mammals from the boat or swim with the animals in their natural atmosphere. Dolphin pod sizes range from 10 to 1,500 along the Kaikoura coastline, which is famous for its marine wildlife. Lonely Planet has also out a new iPhone guide to the city of Vancouver, Canada, which is accessible for free download.

Space shuttle blasts off on previous night

 http://www.news-updations.blogspot.com/Space shuttle Endeavour is rocketing to the space station on 1 of the shuttle program's last scheduled missions. Endeavour and its team of 6 blasted off early Monday.

The pre-dawn launch was the last one in darkness if the rest of the shuttle schedule holds. Only 4 extra shuttle flights are missing. Endeavor is carrying a new room for the International Space Station and an surveillance deck. These are the final main pieces for the orbiting complex.

The shuttle is programmed to reach the space station Wednesday. Its flight was belated a day by cloudy weather. The Obama Administration has yet to give specifics on what happens after the last operation this fall. NASA's back-to-the-moon Constellation plan is a casualty under the new budget plan.

Researchers turn reproduction bee silk

http://www.news-updations.blogspot.com/Australian researchers formed artificially produced honey bee silk using genetically adapted bacteria. CSIRO entomologist Dr Tara Sutherland, who led the group of researchers, says "the silks would be good for hard, lightweight textiles, and high-strength applications like superior aviation and oceanic composites."

"It would also be helpful in medical applications with sutures, artificial tendons and ligaments." To make their insect silk from E. coli, Sutherland and colleagues initially had to genetically change the bacteria. "Honey bee silk was favored because E. coli can't produce long stranded silks like spiders or silk worms make, however can make the shorter protein strands, made by honey bees," says Sutherland.

"Numerous hard works have been prepared to express other invertebrate silks in transgenic systems but the complicated structure of the silk genes in added organisms means that producing silk exterior silk glands is extremely not easy."

"We had earlier identified the honeybee silk genes and knew the silk was fixed by four small non-repetitive genes - a lot simpler understanding which prepared them excellent candidates for transgenic silk production."

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Japan's whale skill

A group of 18 scientists from Australia, France and New Zealand will go away today on a six-week journey to Antartica today to explain Japan's annual kill of whales for scientific purposes is needless.

The group will leave from Wellington with the aim of proving that non-lethal study could give all the information wanted to realize and keep whales.

Australian Antarctic Division acting chief scientist Steve Nicol says the researchers will learn whale biology and their shock on the ecosystem of the iced up continent.

Japan at present has six-ship whaling navy in Antarctic waters as division of its scientific whaling plan.

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