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Thursday, February 24, 2005

A paste containing synthetic tooth enamel can seal small cavities without drilling. Kazue Yamagishi and colleagues at the FAP Dental Institute in Tokyo say that the paste can repair small cavities in 15 minutes.

Currently, fillers don’t stick to such small cavities so dentists must drill bigger holes. Hydroxyapatite crystals, of which natural enamel is made, bond with teeth to repair tiny areas of damage.

Yamagishi and colleagues have tested their paste on a lower premolar tooth that showed early signs of decay. They found that the synthetic enamel merged with the natural enamel. The synthetic enamel also appears to make teeth stronger which will improve resistance to future decay. As with drilling, however, there is still the potential for pain: The paste is strongly acidic to encourage crystal growth and causes inflammation if it touches the gums.

The paste is reported in the journal Nature.

Friday, January 9, 2009

Global chemical manufacturer LyondellBasell — the third-largest private chemical company in the world — has collapsed. The firm filed for Chapter 11 bankruptcy protection in the United States, as well as the Dutch equivalent. They had failed to meet a January 4 deadline on postponed debt payments, and talks with creditors failed.

Headquartered in The Netherlands, LyondellBasell is owned by private equity tycoon Len Blavatnik, who had already refused the company a loan to help deal with debt resulting from a $12.7 billion merger between Basell International Holdings and Lyondell Chemical to create LyondellBasell Industries.

The company had already appointed Kevin McShea from Alix Partners to restructure the firm. McShea was assigned speculatively prior to the bankruptcy filing. Access Industries, Blavatnik’s company, refused to extend credit as part of a loan deal brokered in March, a decision Lyondell Chemicals Company, a subsidiary of LyondellBasell, stated they were unhappy with.

LyondellBasell had postponed $280 million worth of interest payments, which Standard & Poor said placed it in “selective default” with a “rapidly weakening liquidity position”. S&P also said that LyondellBasell have debts of $26 billion in a report on the company prior to the firm’s collapse.

LyondellBasell responded with a press release, issuing the following statement: “Standard & Poor’s definition of ‘selected default’ related to our corporate credit rating should not be misinterpreted to suggest that LyondellBasell is currently in default of its bank agreements. As they stated in their press release, ‘This is a default in our opinion according to our definitions and criteria.’ LyondellBasell is not currently in default according to its agreements with its lenders.”

The company met with high oil prices shortly after the expensive merger. This was followed by a general tail-off in demand caused by the ongoing financial crisis. Investors were continuing to bet before the collapse that the firm would restructure under bankruptcy protection, leaving lenders with big losses, potentially over 90% of their investments. The cost of credit protection for LyondellBasell bonds had soared. The creditors include Merrill Lynch, Goldman Sachs, Citigroup, ABN Amro and UBS.

On Thursday, an interim allowance was made by a judge for LyondellBasell to seek up to $2.167 billion of loans. There is also an emergency loan paid out of $100 million. As well as LyondellBasell, 79 affiliates have become insolvent. Citigroup has said the collapse will set them back $1.4 billion in unpaid debts.

Friday, November 13, 2009

Italian goalkeeper Carlo Cudicini has been seriously injured in a motorcycle accident in London. The player, who plays for Tottenham Hotspurs, was involved in a collision with a car at 10:30 GMT. The football club reported that he has fractured his wrists and injured his pelvis.

A spokesperson for the Metropolitan Police released a statement saying “A 36-year-old male suffered injuries described by the London Ambulance Service as possibly life-changing and was taken to Whipps Cross Hospital for further assessment and treatment”. No arrests have been made.

Cudicini crashed his motorcycle into a Ford Fiesta with a female driver and a child passenger. Neither the driver or passenger were injured in the accident.

Cudicini is the son of former AC Milan goalkeeper Fabio Cudicini. During his career he has played for Lazio, AC Milan and Chelsea. He played for Chelsea for 10 years until he was transferred to Tottenham in January. He made one appearance for the Italian national team.

Saturday, November 4, 2006

On November 13, Toronto residents will be heading to the polls to vote for their ward’s councillor and for mayor. Among Toronto’s ridings is Toronto Centre (Ward 28). One candidate responded to Wikinews’ requests for an interview. This ward’s candidates include Edward Chin, Paula Fletcher (incumbent), Patrick Kraemer, Suzanne McCormick, Daniel Nicastro, and Michael Zubiak.

For more information on the election, read Toronto municipal election, 2006.

Wednesday, April 25, 2012

According to Israeli Prime Minister Benjamin Netanyahu, the termination of a natural gas contract between Egypt and Israel is a business matter and not a political issue between the two counties. Netanyahu’s statement on Monday backs away from other officials’ earlier responses to the action.

Egyptian Natural Gas Company announced Sunday, April 22 that it will stop supplying Israel with natural gas over a disagreement about payments. The company’s leader claims the other side is in “breach of contract” as Gasco has not been paid for what has already been delivered.

In 2005, Israel and Egypt, under former president Hosni Mubarak, signed a 15-year trade deal whereby Egypt would supply natual gas at a discounted rate to the Israelis. Tensions between the two countries have made Israel cautious about relying on Egypt for its energy. Since the 2011 Egyptian revolution, the pipelines for transporting natural gas from Egypt to Israel have been damaged up to 14 times.

When this decision was broadcast on Sunday night in Egypt, commentators for Egyptian news services discussed whether this decision was a blatant contractual infringement, a necessary commercial move, or an attack on the original peace treaty between Egypt and Israel made at Camp David in 1978.

In Israel, Yuval Steinitz, the finance minister, said, “This is a dangerous precedent that diminishes the peace treaty [between the two countries].”

Avigdor Lieberman, foreign affairs minister, had called on Egypt to reverse the decision and prevent the contractual dispute from escalating into a political issue. Since Netanyahu’s more recent comment, Lieberman has also backed away from characterizing the issue as a political dispute.

Egypt’s natural gas exports once made up 40 percent of Israel’s natural gas reserves, but Israel has looked for other options as the political atmosphere in Egypt changed. Israel is developing its own offshore fields, and it has begun to import other types of “dirty fuels,” like gas and diesel. As a result, Israeli consumers have seen a nine percent increase in electricity costs and Israel is preparing for the possibility of blackouts.

Monday, February 27, 2012

Former Congressman Virgil Goode of Virginia spoke with Wikinews reporter William S. Saturn about his newly announced 2012 presidential campaign. Goode is currently seeking the nomination of the Constitution Party, a U.S. third party.

Goode served in the Virginia State Senate for twenty-three years. In 1996, he was elected to represent Virginia’s Fifth U.S. congressional district as a Democrat, and was re-elected two years later. Goode left the Democratic Party before his second re-election campaign in 2000, and ran as an Independent. He joined the Republican Party ahead of the 2002 election, and was re-elected three additional times until his defeat in 2008. Since then, Goode has joined the Constitution Party, and has served on its executive committee.

The Constitution Party was founded in 1991 as the U.S. Taxpayers Party. Eight years later, it changed to its current name. The party advocates states’ rights, gun rights, limited government, protectionism, and non-interventionism. It strongly opposes abortion and illegal immigration. In terms of voter registration, it is the third largest U.S. political party with 367,000 members. Pastor Chuck Baldwin won the party’s 2008 presidential nomination, and appeared on 37 state ballots receiving 199,314 votes (0.15%).

Goode had been speculated to make a run for the party’s presidential nomination since last year. In fact, the executive committee passed a resolution last spring to convince him to run. Goode filed paperwork with the Federal Election Commission (FEC) on February 10, and announced his candidacy to the Daily Caller six days later.

The 2012 Constitution Party National Convention will be held in April. Other candidates seeking the nomination include former Savannah State football coach Robby Wells. National chairman Jim Clymer described Goode last summer as the frontrunner for the party’s nomination.

To Wikinews, Goode affirmed his credentials for the presidency and shared his view on the Obama administration. Among other issues, he addressed immigration, spending, energy, and foreign policy.

Monday, May 12, 2008

The investigation into the crash of a British Airways Boeing 777 (B777) written off on January 17 after landing short of the runway at London’s Heathrow International Airport has been updated. The crash of Flight 38 injured one passenger seriously and 12 others on board, including four crew members, as well as being the first hull loss of a B777.

The latest word from the United Kingdom’s Air Accidents Investigation Branch (AAIB) is that both engines had low fuel pressure in their high pressure (HP) fuel inlets, leading to the failure of both engines. Having departed from Beijing, China the aircraft was on final approach for landing at Heathrow when the thrust on the engines first reduced and became unresponsive, then ceased completely. The copilot, who was flying the aircraft at the time, received significant media praise for gliding the aircraft past housing and airport barriers to crash land the airliner onto the grass at the runway threshold, likely saving the 136 passengers and 16 crew from death or further injury as well as preventing potential ground casualties. The landing gear collapsed and the airframe, wings and engines were significantly damaged.

Each HP inlet also exhibited “unusual and fresh cavitation damage to the outlet ports consistent with operation at low inlet pressure”, according to the AAIB’s latest report on investigatory progress, which also states engine failure was definitely caused by low pressure and that the autothrottle had opened up appropriate valves fully in an effort to increase fuel flow, but to no avail. The report indicates the investigation has also considered an area of unusually cold air over Russia which the B777 passed through at 40,000 feet on its journey. Between the Ural mountain range and East Scandinavia the air was found to have been as low as -76°C. The AAIB has ruled out fuel turning to ice as the fuel temperature never fell below -34°C. This is compared to an average freezing temperature of -47°C for jet fuel and test showing the fuel in the B777’s tanks needed cooled to at least -57°C before it froze. Floating ice particles had previously been suggested as a possible causal factor.

However, it has been suggested outside of the investigation that although the fuel did not freeze, it could have become unusually thickened, restricting its flow through the HP inlets, although the temperatures did remain within what are currently considered safe levels. Another possible explanation was that the fuel was contaminated or of inferior quality, but the AAIB has ruled this out. Also disproved are suggestions that the plane suffered a bird strike or that it was disrupted by electromagnetic interference from jamming devices set up to protect a motorcade carrying Prime Minister Gordon Brown.

The report says that there was also no evidence to suggest any control systems failed, that the aircraft encountered a wake vortex or that there was core engine icing or other evidence that the engines suffered core lock. There was no damage to the fuel systems excluding that caused by the low pressure and no blockages, therefore it is suspected that fuel flow was restricted.

The investigation has also begun analysing previous flights on comparable aircraft in a large sample of flights. Thus far, no parameters present on Flight 38 have been found that differ significantly from anything previously encountered. The purpose is primarily to identify potentially troublesome combinations of unusual operational parameters.

The report concludes by stating that interested parties to the investigation, specifically the Federal Aviation Administration, the European Aviation Safety Agency, the Civil Aviation Authority and British Airways are being kept fully informed of the investigation’s progress.

Although this shows some progress, according to David Learmount, operations and safety editor at periodical industry magazine Flight International, “This report takes us absolutely nowhere, I think they still have no idea.”

The B777 has never had any other hull losses or any fatal accidents and is considered to have one of the world’s safest commercial airliners. According to one spokesman for British Airways “It has one of the best safety records of any commercial aircraft. At no stage since the accident has the AAIB, Boeing or Rolls Royce advised against the continued operation of the Boeing 777.”

The engines underwent analysis at manufacturer Rolls-Royce‘s facility in Derby, while airframer Boeing is studying the fuel systems in the United States. Rolls Royce’s engine test bed was modified to replicate control inputs from aircraft control systems, and Boeing are working at replicating the cold conditions experienced over Eastern Europe. The investigation is ongoing.