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01 Oktober 2011

Ternyata Pemanasan Global Picu Hewan Mengecil

Pemanasan Global Picu Hewan Mengecil - Banyak spesies hewan yang mengalami penyusutan ukuran fisik. Efek ini merupakan akibat pemanasan global yang kian parah. Kini ilmuwan berhasil mengetahui penyebabnya.

Spesies berdarah dingin telah lama bereaksi pada fenomena yang dikenal sebagai ‘aturan ukuran suhu’ di mana tiap individu satu spesies akan mencapai ukuran dewasa yang lebih kecil ketika suhu diperbesar.

Peneliti Queen Mary dari University of London mengaku berhasil menemukan penyebabnya. Ilmuwan mengatakan, pada banyak spesies berdarah dingin, tingkat pertumbuhan atau seberapa cepat massa terakumulasi dan tingkat perkembangan atau seberapa cepat individu melewati tahapan kehidupan secara konsisten ‘dipisahkan’ dengan perkembangan yang lebih sensitif pada suhu dibanding pertumbuhan.

“Pertumbuhan dan perkembangan meningkat pada tingkat yang berbeda ketika suhu menghangat. Konsekuensinya, makin hangat suhu, spesies tumbuh lebih cepat namun juga dewasa lebih cepat dan akibatnya, ukuran mereka mengecil,” papar peneliti Andrew Hirst.

Peneliti mengatakan seperti ditulis UPI, temuan ini menunjukkan tingkat dasar semua organism tak berbuah sejalan satu sama lain dengan pemanasan global.

Well, itulah seputar informasi tentang Pemanasan Global Picu Hewan Mengecil. Baca juga Foto Heidi Klum Hampir Bugil di Pantai, Kata Kata Bijak . Well, semoga informas tersebut bermanfaat buat anda.

20 Maret 2011

Price And Review Samsung Galaxy Tab

BlakBlakanNews - International, Tech. Review And Price Samsung Galaxy Tab. When you have a product that is as successful as the iPad, there is a kind of crushing inevitability that other firms will launch their own rival tablet-style devices in an attempt to grab a share of Apple's market.

PC firms such as Dell and Acer have already produced their own versions, and Blackberry will cash in on the tablet craze later this year with the Playbook.

But one of the higher-profile alternatives to the iPad so far has been the Samsung Galaxy Tab, which in terms of features and functionality has a good go at rivalling the Apple giant.

Compact: The Samsung Galaxy Tab is small enough to fit in your back pocket - but its size proves to be a disadvantage

Compact: The Samsung Galaxy Tab is small enough to fit in your back pocket - but its size proves to be a disadvantage

That said, it is not without its flaws, and while it is a more than acceptable subsitute, it's not necessarily a preferable one.

The main disadvantage here is that it is a lot more compact than its rival - while there is appeal to be had from the fact that it's small and thin enough to fit in your back pocket, on the downside you're looking at a much smaller screen than you might on other tablet PCs - seven inches to be precise.

As a result the Galaxy Tab often feels just too small for comfort, an awkward size somewhere between an iPad and an Android phone that doesn't quite work as effectively as it should.

The size of the screen makes web browsing tricky - hold it vertically and the page you're looking at appears to be tiny, hold it horizontally and it cuts half of it off (it fares better if you're using a site such as YouTube, providing speedy streaming and good quality pictures)

Acceptable rival: The Galaxy offers all of the features and apps that you would expect on a tablet PC

Acceptable rival: The Galaxy offers all of the features and apps that you would expect on a tablet PC

And yet there is much to recommend the Galaxy, which I did approach with some scepticism having not been a fan of the touch screen format in the past.

It's extremely easy to get to grips with, apps are easy to download and use (and yes, the available apps do include the ever popular Angry Birds), the touch screen keypad is fine for basic tasks such as responding to emails and the like, and the 3 megapixel camera and video camera provide some of the best quality pictures that you'll have seen from an Android device.

Overall it's decent enough, but given the sheer brilliance of its rival you're still left with the impression that the Galaxy Tab is lacking something - be it the size or the general feeling that some of the features and functions aren't quite as good as they could be, or that Apple has done them better.

While it's an acceptable alternative, it may well have to address the issues that it has and improve upon them in subsequent versions in order to avoid being lost in an increasingly crowded market.


Price: £679rrp, but is available online from £359



RAF Tornado Jets Today Joined the Attack in Libya

BlakBlakanNews - International, Libya Crisis. RAF Tornado jets today joined the attack in Libya just hours after British and American warships unleashed cruise missiles against Libya as the world finally turned on Colonel Gaddafi.

Following the start of the assault, the dictator said that western air raids amount to terrorism and that Libyan forces on the ground would be victorious, adding that he would not leave the country and people should defend him and the capital.

Stormshadow missiles were launched from the GR4 fast jets which had flown 3,000 miles from RAF Marham in Norfolk and back - the longest range bombing since the Falklands.

As part of a co-ordinated strike, a barrage of 112 Tomahawk cruise missiles - some of them British - was also fired at Libya to knock out the dictator's air defence systems at more than 20 coastal locations.

At war: The U.S. navy Arleigh Burke-class guided-missile destroyer launches a Tomahawk missile at Libyan air defences in Operation Odyssey Dawn

At war: The U.S. navy Arleigh Burke-class guided-missile destroyer launches a Tomahawk missile at Libyan air defences in Operation Odyssey Dawn

A Tomahawk missile launches from USS Stout as part of Operation Odyssey Dawn

A Tomahawk missile launches from USS Stout as part of Operation Odyssey Dawn

A Royal Navy Trafalgar-class submarine stationed in the Mediterranean took part in the co-ordinated assault, which also involved forces from the US, France, Italy and Canada under the operational control of US Africa Command.

A British nuclear-powered submarine was among the vessels in the central Mediterranean that targeted Gaddafi’s defences near Tripoli and the town of Misurata.

It was part of a combined assault led by the United States, which also has Tomahawk-equipped submarines in the region.

Chancellor George Osborne was on BBC1's Andrew Marr show this morning where he sadi: 'We are not considering ground forces at the moment. We are undertaking operations from our Navy, through the submarine-launched cruise missiles and the RAF and the Tornado planes the flew missions last night.'

RAF Marham: An RAF Tornado GR4 aircraft being prepared earlier this morning ahead of its 3,000 mile flight from Norfolk to Libya

RAF Marham: An RAF Tornado GR4 aircraft being prepared earlier this morning ahead of its 3,000 mile flight from Norfolk to Libya

Map showing where the western forces have hit

He added that the Government is enforcing a UN resolution which was clear about what the allied forces are there to do.

'We are there to enforce a cease fire and protect the civilian population,' he said. 'We are not there to put an occupying force into the country.

'This is all about creating the space for the Libyan people to take their own decisions for the future and not be under vicious military assault from their own government.

'I don't think the Libyan government and Colonel Gaddafi should be in any doubt that we will enforce the will of the United Nations.'

Stormshadow

Defence Secretary Liam Fox said: 'The fast jets flew 3,000 miles from RAF Marham and back, making this the longest range bombing mission conducted by the RAF since the Falklands conflict.

'This operation was supported by VC10 and Tristar air-to-air refuelling aircraft as well as E3D Sentry and Sentinel surveillance aircraft.'

Dr Fox said HMS Westminster was off the coast of Libya, and HMS Cumberland was in the region ready to support operations. Typhoon aircraft were also standing by to provide support.

He added: 'Our capable and adaptable armed forces are once again displaying their courage and professionalism. This action has provided a strong signal - the international community will not stand by while the Libyan people suffer under the Gaddafi regime.'

Last night, the US Pentagon reported that 112 Tomahawk missiles had been fired from both US and British ships and submarines in Operation Odyssey Dawn while three B-2 stealth bombers from the U.S. have dropped 40 bombs on Libyan airfields.

A spokesman said: ‘The missiles struck more than 20 integrated air-defence systems and other defence facilities ashore. These strikes were carefully co-ordinated with our coalition partners.

‘The targets themselves were selected based on a collective assessment that the sites either pose a direct threat to the coalition pilots or, through use by the regime, pose a direct threat to the people of Libya.

‘I want to stress that this is just the first phase of what will likely be a multi-phased military operation designed to enforce the United Nations resolution and deny the Libyan regime the ability to use force against its own people.’

He added that most of the locations targeted were on or near the coast. The British submarine involved in the operation, codenamed Operation Ellamy by the UK military, was the 130-crew HMS Triumph. It can carry up to 30 weapons, including Tomahawk missiles and heavy torpedoes.

A U.S. Air Force AWACS surveillance aircraft comes in to land at an RAF base in Cyprus earlier this morning

A U.S. Air Force AWACS surveillance aircraft comes in to land at an RAF base in Cyprus earlier this morning

Night vision: Tomahawk cruise missiles fired from USS Barry in the Mediterranean Sea

Night vision: Tomahawk cruise missiles fired from USS Barry in the Mediterranean Sea

The Royal Navy bought 65 Tomahawks in 1995 at a cost of $1 million (£650,000) each from US defence firm Raytheon Systems. Two American destroyers, the USS Barry and Stout, have been deployed. According to a Pentagon source, each carries up to 96 Tomahawk missiles.

‘The total number of Tomahawks in our inventory is classified but I don’t think there’s any danger of running out,’ the spokesman said. ‘The bigger danger is we know virtually nothing about who’s going to control Libya after we wipe out Gaddafi.’

Two amphibious assault ships, the USS Ponce and Kearsarge, carrying 1,600 Marines, anti-missile defence systems and helicopter fleets, were also off the Libyan coast, as was the command support vessel USS Mount Whitney. An aircraft carrier, USS Enterprise, equipped with dozens of fighter planes, was reported to be heading for the area.

As the attacks began yesterday, Libyan state TV claimed that ‘civilian’ targets in Tripoli were being bombarded by ‘planes of crusader enemies’. It later added that the international coalition had also 'targeted ‘fuel stores’ for Misurata, which Gaddafi’s forces attacked with tanks and heavy artillery on Friday, killing more than 40 people.

Gaddafi appeared on TV to say he was opening up munition stores to the people. He said: ‘It is now necessary to open the stores and arm all the masses with all types of weapons to defend the independence, unity and honour of Libya.’

Last night there were reports of loud explosions east of Tripoli amid unconfirmed reports that the Tomahawks had successfully hit Gaddafi’s air traffic control installations and aircraft hangars.

It followed a day of high drama in which tanks and armoured vehicles were also destroyed in air strikes by French warplanes after pro-Gaddafi forces attacked the rebel stronghold of Benghazi in violation of the UN resolution.

About 20 French Rafale and Mirage warplanes were involved in the first phase of the operation. France last night denied that one of its aircraft had been shot down.


Shining a light on agony of psoriasis


BlakBlakanNews - International, Health. Shining a light on agony of psoriasis, By Dr Ellie Cannon.

Psoriasis, a skin condition that causes red, flaky, crusty patches of skin covered with silvery scales, affects around two per cent of Britons. It can start at any age but develops most often between the ages of 11 and 45. There is no cure and the cause of the autoimmune disorder is unknown.

Although it is not life-threatening, it can be debilitating. Fortunately, as DR ELLIE CANNON explains, the symptoms can be relieved.


Q. I thought I had eczema but my GP says it is psoriasis. Are they similar?

Psoriasis, like eczema, is a chronic skin condition that flares up periodically. It affects the skin in patches, which are red and well outlined with a silvery top, so it looks different to eczema. Psoriasis can be itchy but less so than eczema. Some people have psoriasis that affects only the scalp or the nails.

Q. What causes psoriasis? Is it genetic?

We don't know what causes it but a third of sufferers have a close relative with it, implying a genetic cause. Some patients develop a type of psoriasis after a throat infection called guttate psoriasis. This usually does not recur. People who smoke or are obese are more likely to develop psoriasis.

Q. Once you have psoriasis does it last for life?

Psoriasis comes and goes in episodes but how often and how severely varies. Once you have the condition it is always possible to have flare-ups. Worsening of the condition can be caused by stress, injury to the skin, infections and hormonal changes. Those with psoriasis need to be careful regarding medication as many drugs, such as anti-inflammatories, antibiotics and blood-pressure tablets, can bring on an attack.

Q. Can the symptoms of psoriasis be treated?

Yes, treatment starts with a cream regime - moisturisers, steroids as well as vitamin D-based creams and coal-tar preparations. Different creams work differently and sometimes people need to shop around to find the best one for them. Patients should be regimented with their routine.

Q. What is light treatment for psoriasis?

For a long time, psoriasis sufferers have noted that sunshine improves their condition. Phototherapy is used widely for treatment of severe psoriasis. Either UVB lights to the skin or UVA treatment with tablets can be effective. (dailymail)







Flossing your teeth could save you from a stroke


BlakBlakanNews - International, health. Flossing may be a bore but this kind of fastidious teeth-cleaning might be a lifesaver

Tooth loss increases the risk of a stroke many years later, according to a new Japanese study, and underlying gum disease may be to blame.

Researchers have calculated that those with fewer than 24 of their own teeth (adults should have 32) are 60 per cent more likely to suffer a stroke.

Stroke is caused by a disturbance of blood supply to the brain.

The most common type is an ischemic stroke, which occurs when a blood vessel that normally delivers oxygen and nutrients to the brain is blocked.

An haemorrhagic stroke is when a blood vessel bursts, causing bleeding into the brain.

In any stroke the nerve cells in the affected area of the brain may die within minutes of being denied oxygen, leading to impairment of bodily functions. An estimated 150,000 people have a stroke in Britain each year, leading to about 53,000 deaths annually.

In the new study, researchers at Hiroshima University looked at the dental conditions of 358 patients and found that stroke patients in their 50s and 60s had significantly fewer remaining teeth than did patients in the same age groups who had been treated for other conditions.

The number of teeth remaining was also significantly lower among stroke patients in their 50s than in the general population of the same age.


Researchers have calculated that those with fewer than 24 of their own teeth (adults should have 32) are 60 per cent more likely to suffer a stroke



The researchers then analysed results from four separate studies. They found that having 24 or fewer teeth increased the risk of stroke by 57 per cent compared with those with 25 or more teeth. The researchers also took into account a range of other risk factors associated with stroke, including smoking habits, obesity and alcohol use.

'This review suggests that tooth loss may be related to both ischemic and haemorrhagic strokes,' says Dr Mitsuyoshi Yoshida, who led the study.

Some studies have suggested a link between periodontal disease and heart disease. Periodontal diseases range from gum inflammation to diseases that damage the tissue and bone that support the teeth. Gum disease is one of the main causes of tooth loss after the age of 40.

The mouth is brimming with bacteria, which contributes to the sticky, colourless plaque that binds to teeth. Brushing and flossing helps get rid of plaque.

Research into heart disease has shown that micro-organisms associated with gum disease have been found in atheromas - accumulation of calcified material - in the arteries of patients. It has been suggested that toxins in these micro-organisms damage cells in the lining of the arteries.

One theory is that periodontal disease may cause inflammation in the arteries and brain tissues, and cause greater amounts of compounds involved in clotting.

Dr Sharlin Ahmed of The Stroke Association says: 'It is believed that oral bacteria can contribute to the furring up and narrowing of artery walls, which could result in a stroke. Oral bacteria could also attach to fatty deposits in the arteries, which can lead to a blood clot and could result in a stroke.' (dailymail.)