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An analysis of Neanderthal bones indicates that they had disproportionately huge biceps and triceps on their right arms, and that spear thrusting does not seem to fully account for their lopsided muscles.?
A volunteer performs a spear-thrusting task like a Neanderthal would as electrodes monitor his muscle activity.
Cory Hofmann
EnlargeThe unusually powerful right arms of Neanderthals may not be due to a spear-hunting life as once suggested, but rather one often spent scraping animal skins for clothes and shelters, researchers say.
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Investigation of a recently discovered neanderthal skeleton reveals the substantial difference in the appearance of powerful muscles between neanderthals and modern humans. Interesting experiement video from BBC science show 'Neanderthal: The Rebirth'.The Neanderthals are our closest known extinct relatives, who were probably less brutish and more like modern humans than commonly portrayed. Their brains were at least as large as ours. They controlled fire, expertly made stone tools, were proficient hunters, lived in complex social groups, buried their dead, and perhaps artfully wore feathers. Genetic research even suggests they interbred with modern humans.
Neanderthals apparently had unusually strong right arms, judging by their right humerus ? the long arm bone underlying the biceps and triceps ? which often boasted protrusions with which to attach powerful muscles.
"Neanderthals have really interesting upper bodies," researcher Colin Shaw, a biological anthropologist at the University of Cambridge in England, told LiveScience. "If you and I are both right-handed, you'd expect 4 to 13 percent asymmetry between our arms. Neanderthals have up to 50 percent or more asymmetry. They were doing something with their dominant arms that were either more intense or repetitive or both than we do today. The only population of modern people that we see who are similar are tennis players, who hit tennis balls many, many years aggressively." [Top 10 Mysteries of the First Humans]
Scientists had suggested these arms may have grown strong through regular underhanded spear-thrusting. "We thought to test that idea," Shaw said.
Shaw, along with colleagues at Pennsylvania State University and the University of Oxford, took measured electrical activity in the muscles of 13 right-handed men as they performed three different spear-thrusting tasks ? single thrusts followed by rapid withdrawals, repeated strikes, and strikes followed by pushing of the spear forward. They also analyzed the men as they carried out four different scraping tasks on carpets ? hacking, pushing and two kinds of pulling.
The experiments were done on men because most Neanderthal skeletons analyzed by scientists have been male. Female skeletons do show the asymmetry, but the small number of specimens makes it tough to say for sure whether Neanderthal females had uneven arms, too.
The researchers found that spear-thrusting led to significantly higher muscle activity on the left side of the body than on the right, opposite to what is seen in Neanderthal fossils.
"Spear-thrusting did not appear to explain the mystery," Shaw said.
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The big news with Yahoo! is obviously its latest talent acquisition, particularly in appointing erstwhile Google VP Marissa Mayer to its CEO post. But in the Asia Pacific, Yahoo! Japan is making a big move for the cloud computing market, with its acquisition of cloud-storage firm Basho.
Yahoo! Japan has invested in the data center infrastructure business in Japan through its subsidiary IDC Frontier. Earlier this week, US-based cloud and database technology company Basho has announced that IDC Frontier is making a US$ 6.1 million strategic equity investment in the company. Under the investment, IDC Frontier will be integrating Basho's Riak distributed database and cloud-storage technology within its own cloud computing platform.
With this investment, IDC Frontier will be able to accelerate its expansion throughout the Asia Pacific region. Basho CEO Donald J. Rippert highlighted IDC Frontier's marketing as an important factor in reaching as wide an audience as possible. "IDC Frontier?s market leadership position and high quality infrastructure will be complimented perfectly by Basho?s technology, which emphasizes availability, scalability and high-performance at its core," he said.
This investment follows a US$ 5 million Series F financing raised in June 2012 through Georgetown Partners. The total capital infusion of US$ 11.5 million will be used by Basho in scaling up its technology and operations to meet with the demand in the "rapidly emerging market for distributed data technologies."
Basho launched the Riak platform in 2011 and significantly updated this with Riak CS in March 2012. Riak CS is a distributed database that offers multi-tenant capability and extensibility through an Amazon S3-compatible API. IDC Frontier will integrate the Riak CS technology in offering customers a distributed cloud storage offering that scales with the company's data centers across the region.
Yahoo! Japan is a joint venture between Yahoo! and Softbank Corp, Japan's biggest mobile carrier. Yahoo! has reportedly considered selling its stake in the venture, similar to its sale of half its stake in China's Alibaba Group earlier this year. With the recent appointment of a new CEO, though, the company is likely to undertake more due diligence in considering such a divestment.
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Source: http://creativityandinnovation.blogspot.com/2012/07/three-big-social-media-mistakes.html
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Wouldn?t it be nice if the search engines could comprehend our impressions of search results and adjust their databases accordingly? Properly optimized web pages would show up well in contextual searches and be rewarded with favorable reviews and listings. Pages which were spam or which had content that did not properly match the query would get negative responses and be pushed down in the search results.
Well, this reality is much closer than you might think.
To date, most webmasters and search engine marketers have ignored or overlooked the importance of traffic as part of a search engine algorithm, and thus, not taken it into consideration as part of their search engine optimization strategy. However, that might soon change as search engines explore new methods to improve their search result offerings. Teoma and Alexa already employ traffic as a factor in the presentation of their search results. Teoma incorporated the technology used by Direct Hit, the first engine to use click through tracking and stickiness measurement as part of their ranking algorithm. More about Alexa below.
How can Traffic be a Factor?
Click popularity sorting algorithms track how many users click on a link and stickiness measurement calculates how long they stay at a website. Properly used and combined, this data can make it possible for users, via passive feedback, to help search engines organize and present relevant search results.
Click popularity is calculated by measuring the number of clicks each web site receives from a search engine?s results page. The theory is that the more often the search result is clicked, the more popular the web site must be. For many engines the click through calculation ends there. But for the search engines that have enabled toolbars, the possibilities are enormous.
Stickiness measurement is a really great idea in theory, the premise being that a user will click the first result, and either spend time reading a relevant web page, or will click on the back button, and look at the next result. The longer a user spends on each page, the more relevant it must be. This measurement does go a long way to fixing the problem with ?spoofing? click popularity results. A great example of a search engine that uses this type of data in their algorithms is Alexa.
Alexa?s algorithm is different from the other search engines. Their click popularity algorithm collects traffic pattern data from their own site, partner sites, and also from their own toolbar. Alexa combines three distinct concepts: link popularity, click popularity and click depth. Its directory ranks related links based on popularity, so if your web site is popular, your site will be well placed in Alexa.
The Alexa toolbar doesn?t just allow searches, it also reports on people?s Internet navigation patterns. It records where people who use the Alexa toolbar go. For example, their technology is able to build a profile of which web sites are popular in the context of which search topic, and display the results sorted according to overall popularity on the Internet.
For example a user clicks a link to a ?financial planner?, but the web site content is an ?online casino?. They curse for a moment, sigh, and click back to get back to the search results, and look at the next result; the web site gets a low score. The next result is on topic, and they read 4 or 5 pages of content. This pattern is clearly identifiable and used by Alexa to help them sort results by popularity. The theory is that the more page views a web page has, the more useful a resource it must be. For
example, follow this link today -
http://www.alexa.com/data/details/traffic_details?q=&url=http://www.metamend.com/
- look at the traffic details chart, and then click the ?Go to site now? button. Repeat the procedure again tomorrow and you should see a spike in user traffic. This shows how Alexa ranks a web site for a single day.
What Can I Do To Score Higher With Click Popularity Algorithms?
Since the scores that generate search engine rankings are based on numerous factors, there?s no magic formula to improve your site?s placement. It?s a combination of things. Optimizing your content, structure and meta tags, and increasing keyword density won?t directly change how your site performs in click-tracking systems, but optimizing them will help your web site?s stickiness measurement by ensuring that the content is relevant to the search query. This relevance will help it move up the rankings and thus improve its click popularity score.
Search Engines Can Use the Click Through Strategy to Improve Results
Search engines need to keep an eye to new technologies and innovative techniques to improve the quality of their search results. Their business model is based on providing highly relevant results to a query quickly and efficiently. If they deliver inaccurate results too often, searchers will go elsewhere to find a more reliable information resource. The proper and carefully balanced application of usage data, such as that collected by Alexa, combined with a comprehensive ranking algorithm could be employed to improve the quality of search results for web searchers.
Such a ranking formula would certainly cause some waves within the search engine community and with good reason. It would turn existing search engine results on their head by demonstrating that search results need not be passive. Public feedback to previous search results could be factored into improving future search results.
Is any search engine employing such a ranking formula? The answer is yes. Exactseek recently announced it had implemented such a system, making it the first search engine to integrate direct customer feedback into its results. Exactseek still places an emphasis on content and quality of optimization, so a well optimized web site, which meets their guidelines will perform well. What this customer feedback system will do is validate the entire process, automatically letting the search engine know how well received a search result is. Popular results will get extended views, whereas unpopular results will be pushed down in ranking.
Exactseek has recently entered into a variety of technology alliances, including the creation of an Exactseek Meta Tag awarded solely to web sites that meet their quality of optimization standards. Cumulatively, their alliances combine to dramatically improve their search results.
ExactSeek?s innovative approach to ranking search results could be the beginning of a trend among search engines to incorporate traffic data into their ranking algorithms. The searching public will likely have the last word, but webmasters and search engine marketers should take notice that the winds of change are once again blowing on the search engine playing field.
Did you find the information in this article useful? Feel free to pass it along to a friend or drop us a line at comments@metamend.com.
About The Author
Richard Zwicky is a founder and the CEO of Metamend Software, a Victoria, B.C. based firm whose cutting edge Search Engine Optimization software has been recognized around the world as a leader in its field. Employing a staff of 10, the firm?s business comes from around the world, with clients from every continent. Most recently the company was recognized for their geo-locational, or GIS technology, which correlates online businesses with their physical locations, as well as their cutting edge advances in contextual search algorithms.
articles@metamend.com
Source: http://www.webprone.com/archives/413
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Source: http://news.yahoo.com/zealand-clamp-down-legal-highs-033734756.html
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BEIRUT (Reuters) - Syrian rebels said they shot down an army helicopter on Tuesday as they battled government forces backed by air power and artillery in the fiercest fighting to hit Damascus since the revolt against President Bashar al-Assad erupted last year.
Rebel officers said thousands of fighters had converged on the capital, a government stronghold during 16 months of turmoil, to bring the battle from Syria's turbulent provinces into Assad's power center.
But it was not clear whether either side could deliver a decisive blow. Free Syrian Army fighters said they had killed 70 members of the security forces and pro-Assad militiamen known as shabbiha over the past 24 hours.
The encroachment of violence into the capital came as United Nations envoy Kofi Annan said he hoped the U.N. Security Council would be able to reach agreement on a Syria resolution.
The council is due to vote on Wednesday on a Western-backed resolution that threatens Syrian authorities with sanctions if they do not stop using heavy weapons in towns, but Russia has said it will block the move.
"I would hope that we will continue discussions and hopefully find a language that will pull everybody together for us to move forward on this critical issue," Annan said in Moscow after meeting Russia's President Vladimir Putin.
Video uploaded by opposition activists showed Damascus buildings and shops that were set ablaze by what they said was rocket and artillery fire. One showed a grocer sweeping out the scorched contents of his shop as smoke still rose from the back.
"I couldn't sleep at all. There was shelling with artillery and helicopter gunships from midnight until 6 in the morning. They didn't stop firing for a single minute," said a Damascus resident, contacted from Beirut by telephone.
"They were using artillery, helicopter gunships and mortars. At dawn you could hear the call to prayer mixed with the sound of gunfire. Now we can hear clashes with heavy machinegun fire. Helicopters are hovering over the area."
Clashes continued in the Midan district in central Damascus and artillery and rocket fire also hit the opposition area of Tadamon, on the outskirts, they said. Many roads in and out of the capital had been closed, they added.
Two rebel fighters and an activist said rebels shot down an army helicopter in the Qaboun district in north-east Damascus. "Helicopters are flying at low altitude. It's easy to target them using anti-aircraft weapons," a senior rebel officer said.
Israel's army intelligence chief said Assad's control of Damascus was slipping and he had redeployed troops from areas near the Israeli frontline to bolster forces around the city.
"Assad has moved many of his forces that were in the Golan Heights to the conflict areas," Major-General Aviv Kochavi said. "He's not afraid of Israel at this point, but primarily wants to bolster his forces around Damascus.
"DRAINING THE REGIME"
Syria's Information Minister Omran Zoabi denied media reports which he said "do not reflect facts on the ground", saying security forces had confronted fighters who infiltrated the capital Damascus and forced many to flee.
"What is happening is that some armed elements infiltrated Damascus and tried to make a move in one of the areas. But the security forces surrounded them and dealt with them - and are still dealing with them," he told Reuters.
"Some (fighters) have surrendered and others escaped on foot and by car and are firing randomly in the air to frighten people," Zoabi said.
Opposition activists said clashes close to the seat of government showed that rebels were chipping away at state power in a capital once seen as Assad's impenetrable stronghold.
"When you turn your guns against the heart of Damascus, on Midan, you have lost the city," said Damascus-based activist Imad Moaz. "The rebels in the street have the support of families across Damascus."
One Free Syrian Army officer said thousands of rebel fighters from the opposition centers of Idlib, Raqqa, Hama and Homs had moved to Damascus, but lacked firepower to deliver a decisive blow and were seeking instead to "drain the regime".
Another senior rebel said Damascus was "in a state of general alert ... We are doing well but we cannot announce anything yet. We cannot talk about seizing an area because the regime will then destroy it completely."
"It is too soon to talk about toppling him now."
REFUGEES FLEE
While fighting raged in Damascus, a Turkish official said a Syrian brigadier general and several other military defectors were among 1,280 Syrians to have fled to Turkey overnight.
They were the latest in a steady stream of officers to join the revolt, and follow the defection of Syria's ambassador to Iraq last week and the escape from Syria by Manaf Tlas, a member of Assad's inner circle.
Underlining the depth of the crisis, neighboring Iraq called on its citizens - many of whom had fled to escape Iraq's own sectarian bloodshed - to leave Syria because of the increase in violence.
Clashes and shelling in opposition areas continued across the country and the British-based Syrian Observatory for Human Rights, which has a network of activists across the country, said more than 150 people were killed on Monday.
Activist accounts are hard to verify because the government restricts access to international media.
With violence rising, the West wants Moscow to drop its support for Assad. Along with China, Moscow has vetoed action against the president at the U.N. Security Council. But before talks with Annan, Foreign Minister Sergei Lavrov signaled no change in Moscow's position.
Lavrov said Western efforts to pass a Security Council resolution, which would extend a U.N. monitoring mission in Syria and also include a threat of sanctions, contained "elements of blackmail". He called for support for Moscow's rival text, which does not call for sanctions.
"If our partners decide to block our resolution no matter what, then the U.N. mission will not have a mandate and will have to leave Syria. That would be a pity," he said.
The small, unarmed U.N. monitoring mission of about 300 is the only international military presence in Syria. It was brought in as part of a peace plan backed by Annan, but suspended due to rising violence in Syria. Activists say more than 17,000 people have died.
U.S. Secretary of State Hillary Clinton, interviewed by the BBC during a Middle East tour, said she hoped Moscow would open the way for a Yemen-style transition to avoid all-out civil war. Former Yemeni President Ali Abdullah Saleh stepped down in February after months of protests, in a U.S.-backed transfer of power brokered by Yemen's wealthy Gulf Arab neighbors.
"The international community has been more than ready to impose all kinds of pressure on the Assad regime," Clinton said.
"Unfortunately, we haven't been able to do that and part of it is because the Russians are very clear: they don't want to give any opening for force that could be used."
Saying she had spoken to Annan before his Moscow trip, she said: "I hope he's able to persuade the Russians that there's a way forward that they should sign on to."
British Foreign Secretary William Hague, speaking after meeting Syrian refugees in Jordan, said his visit left him in no doubt "that a Chapter Seven resolution of the United Nations Security Council is required to mandate the implementation of Kofi Annan's peace (plan)".
Chapter Seven allows the 15-member council to authorize actions ranging from diplomatic and economic sanctions to military intervention. U.S. officials have said they are talking about sanctions on Syria, not military intervention.
"We will continue to argue for it over the course of the coming hours," he told a news conference in Amman.
What began as a protest movement in Syria, inspired by demonstrations in other Arab countries, has become an armed insurgency fighting against Assad's crackdown. The International Committee for the Red Cross now classifies the conflict as a civil war.
(Additional reporting by Khaled Yacoub Oweis in Amman, Oliver Holmes in Beirut, Jonathon Burch in Ankara and Jeffrey Heller in Jerusalem; writing by Dominic Evans, editing by Philippa Fletcher)
Source: http://news.yahoo.com/syria-fighting-closes-capital-001616720.html
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