Wednesday, September 18, 2013

The Three Wheel Revolution

Millions of urban dwellers around the world have adopted the scooter as their primary means of negotiating the crowded streets and limited parking of 21st-century cities. Given the scooter’s popularity everywhere from Rome to Bangkok, it may seem like changing to the vehicle’s design would be a fool’s errand. But three-wheeled scooters first designed in 2006 are finally starting to make headway in the North American market after garnering a dedicated following in Europe. While these three-wheelers may look a bit like a lunar module for the urban set, they combine the nimble steering and fuel economy of standard two-wheelers with the balance and stability of an automobile.

In hindsight, adding a third wheel may seem like an obvious way to give riders better balance. But creating a design that provided more stability without sacrificing a scooter’s capacity to tilt and turn was inherently complicated. Piaggio engineers came up with a patented suspension and steering system that does exactly that, allowing drivers to turn as they would in a standard two-wheeled scooter, but with a reduced chance of tilting too far and losing control. A locking system also kicks in when the scooter is at a full stop, so riders don’t have to bring their feet to the ground to stabilize the vehicle.

The market has been getting more crowded since Piaggio launched the three-wheeled MP3. In 2007, Can-Am, the Canadian manufacturer of recreational vehicles, added its own twist to the three-wheel concept with the Spyder, a motorcycle crossover with a front-end, two-wheel Y-axis powered by a 100-horsepower engine. Italian scooter-maker Quadro Vehicles first entered the fray in 2010, but recently introduced an on- and off-road scooter. In May, French automaker Peugeot released the Metropolis, a three-wheeler powered by a 400 cc engine.

These companies are betting on the same trend as Piaggio ­– namely, that three-wheeled scooters will benefit from a growing demand for a safe and fuel-efficient way to commute in congested cities. According to Piaggio, the U.S. scooter market grew by 8 percent in 2012 to 34,000 vehicles. With more brands introducing three-wheelers into the market, The Financialist highlights the new designs that could reshape urban commutes around the world.

Companies join forces to bring VVER to UK

According to Fortum, the trio of companies are to begin preparatory work towards a Generic Design Assessment (GDA) of a VVER-type power plant and site licensing. First commercial contracts have been signed by the parties.
The agreement is supported by a memorandum of understanding on cooperation in the nuclear power industry signed in Moscow by UK energy minister Michael Fallon and Rosatom head Sergei Kiriyenko. At the same time, Rolls-Royce signed a contract with Rosatom which will see the UK company undertake engineering and safety assessment work on Rosatom's VVER technology ahead of its potential entry in the GDA process.
The GDA forms part of the approval process for new reactor projects in the UK, and allows regulators to assess the safety, security and environmental implications of new reactor designs, separately from applications to build them at specific sites. The UK's first GDA process began in 2007, when four designs were submitted for initial consideration by UK regulators. Areva's EPR became the first reactor design to complete the GDA process and receive a Design Acceptance Confirmation and Statement of Design Acceptability in December 2012. Earlier this year, a GDA was begun for Hitachi-GE's Advanced Boiling Water Reactor (ABWR).
The companies bring together various experiences and expertise. Rosatom's VVER reactors currently operate in 11 countries. Finnish nuclear utility Fortum brings to the table its experience of construction, operation and maintenance of VVERs at the Loviisa plant, which has operated for over 30 years, while Rolls-Royce contributes expertise as a provider of technology and services to the nuclear industry as well as knowledge of the UK licensing regime and its network of suppliers as a leading engineering company. Rosatom has been working closely with Rolls-Royce since the two companies signed a memorandum of understanding in 2011.
Rosatom has long expressed an interest in the potential new build market offered by the UK, where eight sites have been approved as suitable for new build. EDF has already earmarked two of them - Hinkley Point C and Sizewell C - as potential sites for EPRs, while ABWRs are proposed for Horizon's sites at Oldbury and Wylfa.
Fortum executive vice president Matti Ruotsala said that the UK provided a "really interesting opportunity." although the company emphasised that it has not yet made any investment decisions related to UK new build.
Fallon said that he welcomed the agreements signed by the three companies, adding that all reactor technologies adopted in the UK must meet the "stringent and independent" regulatory standards required in the UK and the EU.

Land of the tomb raiders- Bulgaria is trying to claw back tens of thousands of ancient artefacts plundered from its historic sites in a £25m-a-year export racket

Real-life vampires, giant rock vaginas, ancient sites to rival those of Greece and Rome – Bulgaria’s archaeologists are putting their country on the map of world history, but first they have to stop the mafia stealing its treasures.

The illegal diggers come at night with shovels and sacks, hunting through the places where they know the professionals have been. They’re looking for the tonnes of ancient artefacts that lie hidden in Bulgaria’s soil.
In the past two decades, Bulgarian law enforcement agencies say this plunder has turned into a €30m-a-year industry for local gangs, putting it a close third behind drugs and prostitution. The artefacts – gold Roman coins, ancient Greek silver, Thracian military helmets – wind up with falsified documents in auction houses in Europe and North America, or increasingly with wealthy Arab and Asian collectors.
“You cannot put a value on what is lost because the real loss is information,” says Professor Bozhidar Dimitrov, director of the National Museum of History in Sofia, who has spearheaded efforts to reclaim lost relics. “Even if we recover them, we don’t know where they were originally found, so our understanding of the history is gone.”
Police say there are 300 criminal treasure-hunting gangs in Bulgaria at present, but as many as 50,000 people are thought to be involved in illegal digging in some form. Entire villages have been known to take part in some impoverished corners of Bulgaria.
Belatedly waking up to the scale of the problem, Bulgarian authorities are trying to claw back some of their lost history from around the world.
“The record so far belongs to the Canadians,” said Prof Dimitrov. “A couple of years back, they returned 21,000 artefacts in one go.
“The Italians had so much to return that the minister of culture became worried about the cost of the shipment, so he ordered his entire delegation to carry two extra bags of luggage when they came here. He himself showed up at my office with two huge suitcases full of priceless artefacts.”
Prof Dimitrov’s huge office looks more like a Bond villain’s than that of a historian: wood-panelled walls and a long window staring up at the Vitosha mountains. “It was designed to intimidate guests”, he says between chain-smoked cigarettes – the museum was formerly the residence of Communist dictator Todor Zhivkov, who ruled Bulgaria for 35 years up to 1989.
The Communist legacy is part of the reason why only a quarter of Bulgaria’s treasures are thought to have been discovered so far. Trapped behind the Iron Curtain for half a century, Bulgaria had few tourists, which meant minimal investment in archaeology and preservation.
 This was followed by a decade of political confusion and economic crisis after the fall of Communism, when organised crime groups had almost completely free rein.
“In the Nineties, the police could stop only about 10 per cent of the stuff leaving the country,” estimates Prof Dimitrov. “Things have improved a lot. Now they get about 70 to 80 per cent. The police show up all the time with new hordes they have seized from shops in Sofia.”
As if to prove the point, the professor cuts the meeting short to receive the deputy director of the police, who says he has 2,000 artefacts to hand over, discovered in the basement of a local antiques store.
Historical discoveries have been one of the few bright spots for Bulgaria’s beleaguered economy in recent years, helping to convince the authorities of the need to protect their heritage.
Archaeologist Nikolay Ovcharov – nicknamed “Bulgaria’s Indiana Jones” – has just started the final excavations at Perperikon, a 7,000-year-old sacred site deep in the Rhodope mountains whose highlight is a walk-in vagina.First discovered in the 1980s when ethnographers interviewed local villagers, Perperikon was in ancient times as famous as the oracle at Delphi in Greece, a place of wild bacchanalian rituals to the goddess Dionysus, and, according to legend, the birthplace of the Greek prophet Orpheus, which counted Alexander the Great among its visitors.
“It rivals Machu Picchu,” says Prof Ovcharov. “Bulgarian archaeology has enormous potential. It can change the way people think about this country. It can give us national pride as well as bringing in a lot of wealth.”
 One of the most extraordinary aspects of Perperikon is a nearby fertility shrine – a 10-metre vulva carved in the rock, leading into a womb-like cave. Around midday at the right time of year, a phallus-shaped ray of sunlight reaches an altar deep in the cave.
“It felt very unusual standing in a vagina,” says Prof Ovcharov, remembering the moment he first saw the cave in 2002. “It was so unique. It still makes my hair stand on end.”
The big surprise for Bulgaria’s historians has been the global interest in its vampires.
A grave unearthed in the Black Sea resort of Sozopol last year turned up a skeleton with an iron stake through its rib cage. It belonged to a famous 14th-century pirate named Kirov, whose job was to attack the ships of illegal Venetian traders. He was later made governor of the town.
Locals believed the souls of evil men did not ascend to heaven and instead left their graves at night to drink the blood of the living. Although Kirov was given an aristocrat’s burial, locals evidently thought him a nasty piece of work, and snuck in after the funeral to drive a stake through the body in order to keep his soul from escaping. They pulled out his teeth, too, just to be safe.
The discovery reached the press almost by accident. Prof Dimitrov was sneaking a cigarette outside Sozopol’s town hall just after the grave was found and some journalists came up to tease him about his heavy smoking. He only mentioned the vampire to deflect attention.
“Suddenly, it became a huge international sensation,” he says at his office, lighting another cigarette. “Vampires are very common here – we’ve already found more than a hundred – so we hadn’t thought to publicise it. I didn’t know there was a vampire movie with Brad Pitt and that they were so popular. It was featured in over 1,200 publications. That’s more than covered the fall of our Communist dictator.”
The vampire has proved a great pull for tourists, and drawn further attention to the astounding discoveries being made in Sozopol.
In 2010, a marble box containing a tooth and bits of skull were found on an adjacent island which are said to be relics of St John the Baptist. Foreign experts dated them to the first century AD and said the DNA belonged to a Middle Eastern man, making the claims plausible enough to attract coach-loads of pilgrims.
Another site in the town has uncovered the ruins of Roman baths alongside a Greek temple to the God Poseidon and a medieval church – a rare chance to see the evolution of worship in a single spot.This is not so surprising for Bulgaria, a country whose strategic location at the crossroads of Europe and Asia has made it one of the world’s most sought-after territories throughout the ages. Greeks, Romans, Thracians, Byzantines and Ottomans all fought countless wars to gain control of its fertile lands – a bitter irony given the controversial emigration of young Bulgarians over the past two decades.
Not all are happy with the government’s efforts to control the trade in historical artefacts, however. Bulgaria’s small shopkeepers complain about restrictions on selling any pre-twentieth century objects.
“The police can shut me down for having just one old coin,” says Constantine Georgiev, owner of a small bric-a-brac store in Sofia. “But this just means the trade in antiques is controlled by around 10 very rich guys with political connections. No one goes after the big mafia bosses because they can afford the bribes.”
Efforts to increase sentences for illicit smugglers have started to change attitudes towards a crime that was not taken too seriously in the past.
“Many used to see it as a fun adventure,” says Prof Dimitrov. “The men dig while the women do a barbecue. You had police and even priests taking part.”
Indeed, a 41-year-old priest from the northern city of Vratsa was busted in 2010 after conducting over 1,000 illegal sales of ancient coins and jewellery over the internet.
 But despite these efforts, experts say that widespread corruption and the high demand from overseas means Bulgaria’s treasures will continue to disappear into private collections, while authorities face a relentless challenge trying to protect over 40,000 known archaeological sites across the country.
“We lobbied for an amnesty a few years back so that private owners could declare what they had on the condition it was not sold or exported. That was one of the first laws that was overturned when GERB [a right-wing Bulgarian political party] took power in 2009,” says Prof Ovcharov. “Rich collectors are a powerful lobby.”

Strain of HIV virus found in monkeys is cleared by vaccine

A vaccine designed to tackle SIV, the monkey equivalent of HIV, may have successfully cleared the virus from infected animals, paving the way for research into a HIV vaccine for humans. 

It was previously thought that both the human and simian immunodeficiency viruses could be managed with antiretroviral therapies, but not eradicated.
However, a study published in the science journal Nature showed that of 16 monkeys exposed to the virus who were injected with a vaccine, nine appeared to be able to clear their body of the disease.
US researchers from the Vaccine and Gene Therapy Institute at Oregon Health and Science University are now hoping to use a similar approach to test for a vaccine equivalent in humans.
The team examined a strain of the virus called SIVmac239, which is up to 100 times more deadly than HIV.
Researchers first inoculated monkeys with the vaccine and then exposed them to SIV. The virus did not spread in over half of the inoculated monkeys, which usually die within two years of being infected.
The vaccine used a modified version of the cytomegalvirus (CMV), which belongs to the herpes family, to sweep through the monkey body and encourage the immune system to fight off SIV.
After being exposed to the virus, some monkey bodies began to respond by searching out and destroying signs of SIV. They remained clear up to three years after first being inoculated.
Prof. Louis Picker told the BBC: “It's always tough to claim eradication - there could always be a cell which we didn't analyse that has the virus in it. But for the most part, with very stringent criteria... there was no virus left in the body of these monkeys.”
However, he said the team were still trying to determine why the vaccine was only successful in nine monkeys.
“It could be the fact that SIV is so pathogenic that this is the best you are ever going to get", he explained.
“There is a battle going on, and half the time the vaccine wins and half the time it doesn't.”
Now, the team want to examine if the same technique could be developed and made safe enough to be successful in humans. Clinical human trials could start within two years if the vaccine is approved and the team receive permission from regulatory bodies, Prof Picker added.

Double nuclear by 2040 says Exxon

Exxon Mobil's 2013 Outlook for Energy bases its findings on data from 100 countries across the globe, looking at 15 demand centres and 20 fuel types. It also takes into consideration the technology and policy issues underpinning the world's energy situation, Exxon Mobil technology advisor David Khemakhem explained to delegates at the World Nuclear Association's Annual Symposium. Latest figures indicate that, with world population anticipated to be close to 9 billion by 2040, energy demand will continue to increase. Electricity demand will drive that growth.
Exxon's figures suggest that world nuclear capacity could be set to double to help meet that demand, as the cheapest form of low-CO2 electricity generation: other options such as onshore wind and solar photovoltaics have significant knock-on grid costs, Khemakhem remarked.
Exxon Mobil's figures spurred a lively and wide-ranging debate amongst Khemakhem's fellow speakers in a panel discussion on energy and nuclear power. Ron Cameron, head of nuclear development at the OECD Nuclear Energy Agency (NEA), led a call for greater transparency over prices across the energy sector. Growth in renewables of the scale seen in recent years had been made possible through subsidies, but the way subsidies had been handled in some countries had been an "economic disaster", he said. Consumers were effectively being asked to pay for the transition into renewables, he said, pleading for the hidden costs of renewables to be made clear, with no disconnect between wholesale cost of electricity and the price. "Affordability is an issue," he remarked.
Nuclear should be seen as complementary to rather than in competition with renewables, the panellists felt. Nuclear could play a vital role in providing affordable baseload power to support the intermittent nature of many renewables, in the absence of a truly effective and affordable means of storing electricity. Energy policy, climate change, and carbon trading expert Bryony Worthington, representing The Weinberg Foundation, urged the nuclear industry not to waste any energy "talking down" renewables, and pointed to the emergence of new third-party advocates opening up the nuclear debate to new audiences.
Also on the panel, moderated by MZ Consulting president Milton Caplan, were Areva UK CEO Robert Davies, UX Consulting Company senior vice president Jonathan Hinze and energy strategist John Licata. All joined in enthusiastically in a lively discussion on the shape the nuclear generation sector may take in the coming decades, from large-capacity reactors to the role of smaller reactors such as SMRs and the need for energy security, with Licata drawing on his own experience and analysis of the effects of "superstorm Sandy", which left large areas of the eastern USA without power in October 2012.

Osborne on EDF nuclear charm offensive

The Chancellor George Osborne has personally written to the board of French energy giant EDF to express his commitment to the UK’s nuclear programme.The letter was in part intended to further negotiations with EDF over the proposed £14bn nuclear plant at Hinkley Point in Somerset.

The Sunday Telegraph understands that the purpose of the letter was to tell the company, led by chairman Henri Proglio, that the proposed Hinkley Point C reactor would be eligible for £10bn of financing guarantees.
The Chancellor’s intervention is said to have been well received by EDF, which had previously been frustrated by what it felt was an unreasonably tough negotiating stance adopted by the Treasury.
The guarantees scheme is key to the future of the project, and will see the Government act as guarantor if EDF were unable to repay its loans, thereby helping reduce risk for creditors, making them more willing to lend money to the project.
EDF remains locked in talks about the so-called “strike price” for electricity that the plant will generate, which will be guaranteed for more than 30 years.Whitehall is thought to be awaiting the next move from EDF. Both sides have described talks as “positive” but an agreement is understood to still be several weeks away. However confirmation of the strike price will not be enough to complete the deal. EDF will also need to attract partners to take up to a 49pc stake in the project.
Energy minister Michael Fallon held talks last month with China Guangdong Nuclear Power Group, which has long been seen as a likely partner for EDF.
Ministers hope that China Guangdong will not only come in as a minority partner for the project but may also in future lead the construction of further UK reactors itself.

New study finds health kick can reverse the ageing process

The results of a study conducted by the University of California suggest that going on a health kick could reverse cell ageing, according to researchers.

The small pilot study, conducted by a team from the Preventative Medicine Research Institute, examined how telomere shortness in human beings acts as a "prognostic marker of ageing, disease and premature morbidity" .
Just as shoelace tips stop fraying, telomeres keep chromosomes stable and prevent mix-ups when cells divide.
But each time a cell divides, its telomeres shorten. In the end they can no longer ensure chromosomal stability and this is when genetic mistakes begin to occur.
Eventually the cell freezes and stops dividing, or destroys itself.
The speed at which telomeres shorten varies in individuals and biological ageing is faster in people who already have rapidly-shortening telomeres.
Short telomere length in white blood cells is especially associated with age-related diseases, including many types of cancer.
But the results of this study showed positive changes to diet and lifestyle encouraged longer telomeres.
Researchers followed 35 men who had suffered low-risk prostate cancer and had chosen to undergo active surveillance.
Twenty-five male participants placed in the "intervention group" underwent a series of lifestyle changes to their diet, activity, stress management, and social support such as counselling. Ten men in the control group did not undertake any life style changes and continued to live as they normally would.  
Blood samples were taken for analysis from both groups five years later.
Men in the intervention group who had switched to a strict vegetarian lifestyle, exercised and practiced yoga showed considerably genetically younger cells. Instead of the length of their telomeres shortening, they increased by ten per cent.
In contrast, the telomeres of men in the control group had shortened in length by 3 per cent.
It has been suggested as a trigger mechanism for the genetic scrambling associated with prostate cancer. Men with short telomeres in prostate cancer-associated cells are much more likely to die from the disease.
Professor Dean Ornish, from the Preventive Medicine Research Institute at the University of California in San Francisco, US, who led the team, said: “The implications of this relatively small pilot study may go beyond men with prostate cancer.
“If validated by large-scale randomised controlled trials, these comprehensive lifestyle changes may significantly reduce the risk of a wide variety of diseases and premature mortality.
“Our genes, and our telomeres, are a predisposition, but they are not necessarily our fate.”
“Our bodies often have a remarkable capacity to begin healing themselves, and much more quickly than we did once realize, if we simply make the lifestyle changes that are really the primary determinants of our health and well-being,” he said.
"It's not the fountain of youth, but it certainly is a step in the right direction. Until now we thought that only telomeres could get shorter. Now we found that they actually can get longer."
Results were published in the Lancet Oncology Journal on Monday. However, some experts are arguing that as the group were only monitored for a five year period, it was too soon to draw definite conclusions from the results.
Biochemist Dr Lynne Cox, from Oxford University, said: "This new study suggests that reducing stress, improving diet and increasing exercise have the effect of not only preventing telomere loss but also of leading to small but significant increases in telomere length, as measured in circulating white blood cells.
"It is perhaps too soon to judge whether this increase in telomere length will correlate with increased longevity or healthspan.
"There are two things to bear in mind here. Firstly, short telomeres that occur as result of chronic stress are highly associated with poor health, and studies in mice have shown improved tissue health when telomeres are restored experimentally. Secondly, by contrast, globally increasing telomere length in cancer-prone mice actually predisposes to more aggressive cancers.
"The small increases in telomere length in this new human study are more likely to correlate with improved health than cancer risk, though it is too early to be definite."
The studies authors also concluded that: "Larger randomised controlled trials are warranted" to confirm their findings.