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.

Wednesday, March 25, 2009

The Honourable Gail Shea, Minister of Fisheries and Oceans, opened the Canadian seal hunt amid protests by animal rights groups, at a time when bans on seal product imports are becoming more prevalent internationally.

Seal hunters along the coast of Newfoundland and Labrador, and the Gulf of St. Lawrence are allowed to catch a maximum of 270,000 Harp Seal pups from a total estimated population of 5.5 million. 8,200 is the allowable catch of Hooded seals from an estimated population of 600,000, and seal hunters may catch 50,000 grey seals from an approximate population of 300,000.

The Harp seal pups may be killed as soon as they have molted their white pelts, which occurs 10 to 21 days after birth.

It is reported that Russia has shut down the seal hunt on its shores. The United States, Netherlands, and Belgium ban the import of seal products. The European Parliament committee has endorsed a ban on seal product imports by the 27 European Union (EU) member states, in the form of a proposed bill that would still allow the Canadian Inuit to trade in seal products for first nation cultural purposes. All members of the EU must approve the bill for it to become law.

“While we are extremely disappointed that the European Parliament has called for a ban of the trade of seal products, our position remains that any ban on a humanely conducted hunt, such as Canada’s, is completely without merit. We will continue to explore all legal and diplomatic options and we will exercise our rights to their fullest extent under international trade laws if and when it becomes necessary and appropriate.”

“Sealing is a significant source of income in many small, isolated coastal communities throughout Atlantic Canada, Quebec and the North, and creates critical employment opportunities for processing plants, as well as fuel, food and equipment suppliers in coastal communities,” said Minister Shea.

“Our government will continue to defend the rights of Canadian sealers to provide a livelihood for their families through our humane, responsible and sustainable hunt,” she said. “It represents as much as 35 per cent of a sealer’s annual income and is important for thousands of families at a time of year when other fishing options are limited at best.”

The first area to open up to the seal hunt was the Gulf of St. Lawrence, where 30 percent of the catch is allowed.

Sixteen observer permits have been issued. “The majority of the observers are people who protest against the seal hunt, but there are journalists and other observers as well. We try to make sure there’s an even proportion of sealing activity and observer activity,” Mr. Jenkins, Department of Fisheries and Oceans spokesman said. The International Fund for Animal Welfare (IFAW) is going to observe and record the commercial seal hunt.

“It’s devastating to be here, to know the commercial seal hunt has started again. It’s clear that a change is on the horizon with the European Parliament voting on a proposal to ban seal-product trade in the EU and many people in the Canadian sealing industry believe that could spell the beginning of the end of the commercial seal hunt,” commented Rebecca Aldworth, director of the Canadian chapter of Humane Society International.

Friday, March 23, 2007

In a press release earlier today, New York State Agriculture Commissioner Patrick Hooker, along with Dean of Cornell University’s College of Veterinary Medicine Donald F. Smith, confirmed that scientists at the New York State Food Laboratory identified Aminopterin as a toxin present in cat food samples from Menu Foods.

Menu Foods is the manufacturer of several brands of cat and dog food subject to a March 16, 2007 recall.

Aminopterin is a drug used in chemotherapy for its immunosuppressive properties and, in some areas outside the US, as a rat poison. Earlier reports stated that wheat gluten was a factor being investigated, and officials now state that the toxin would have come from Chinese wheat used in the pet food, where it is used for pest control. Investigators will not say that this is the only contaminant found in the recalled food, but knowing the identity of the toxin should assist veterinarians treating affected animals.

The Food Laboratory tested samples of cat food received from a toxicologist at the New York State Animal Health Diagnostic Center at Cornell University. The samples were found to contain the rodenticide at levels of at least 40 parts per million.

Commissioner Hooker stated, “We are pleased that the expertise of our New York State Food Laboratory was able to contribute to identifying the agent that caused numerous illnesses and deaths in dogs and cats across the nation.”

The press release suggests Aminopterin, a derivative of folic acid, can cause cancer and birth defects in humans and can cause kidney damage in dogs and cats. Aminopterin is not permitted for use in the United States.

The New York State Food Laboratory is part of the Federal Food Emergency Response Network (FERN) and as such, is capable of running a number of unique poison/toxin tests on food, including the test that identified Aminopterin.

Tuesday, March 28, 2006

Pro Hart, the self-taught, internationally-acclaimed Australian artist, died at home in Broken Hill on March 28 after family members decided to cease his medication. The 77-year-old had been ill with motor neurone disease. Family members described his passing as peaceful. Hart is a household name in Australia.

Hart’s son, John Hart, says a State funeral is being organised for his father. He says his father lost the ability to paint about six months ago. Pro Hart’s son David today said the funeral for the “brushman of the bush” will be held in the far-western New South Wales mining city of Broken Hill next Tuesday. “It will be held next Tuesday”, he said, “probably in the town’s civic centre.”

Born Kevin Charles Hart in Broken Hill on May 30, 1928, his mining mates nicknamed him ‘Professor’ due to his passion for invention. He started painting “cheeky” pictures on the wooden beams of the mines he worked in. Hart went to few art classes and started painting full-time in 1958.

Since then, he has exhibited all over the world, including London, New York, Paris and Tokyo. He also illustrated several books. Hart’s preoccupation with art began as a teenager on his family’s sheep station near Menindee.

His work hangs in collections all over the world. Agent Amanda Phillips says Hart was one of Australia’s most renowned artists yet his paintings are not in the National Gallery of Australia. “He’s a great Australian, I mean he’s been given an MBE for his services to art, he’s been honoured all around the world, his work hangs in major collections around the world, why isn’t he displayed here in Australia? A spokeswoman for the National Gallery confirmed they had a “very limited collection” of Pro Hart’s works although no paintings.

Thursday, October 5, 2006

The Independent Monitoring Commission has reported that the Provisional Irish Republican Army has undergone major changes within their military structure and shows that the IRA Army Council wants to put its military campaign behind it. The Commission consists of John Alderdice, a former Alliance Party leader; Joe Brosnan, former Secretary General of the Department of Justice, Republic of Ireland; John Grieve, former Deputy Assistant Commissioner of the Metropolitan Police and former head of the Metropolitan Police Anti-Terror Branch; and Dick Kerr, former Deputy Director of Central Intelligence Agency.

The report states the IRA no longer has the capacity to mount a military campaign anymore or return to one. The units that have been shut down were responsible for weapons-making, arms smuggling and training. The IRA decommissioned their arms last year.

The report also mentions that the IRA has also put its criminality beyond use and is “clamping down” on criminals within the organization, said Lord Alderdice, as he presented the report. He also added, “That doesn’t mean that criminal activity by all members has stopped but the leadership has made public statements and internal directions, investigated incidents of breach of the policy, even expelled some members and has emphasised the importance of ensuring that business affairs are conducted in a legitimate way.”

Finally, the report added that there is not enough evidence or intelligence to identify who killed Denis Donaldson, a British spy who infiltrated the IRA and Sinn Fein, before revealing his status as a spy.

However, the report added that splinter groups like the Real IRA (RIRA) and Continuity IRA (CIRA) are still threats and are still continuing their activity. The Real IRA was the group behind the deadly 1998 Omagh bombing. The Irish National Liberation Army (INLA) “was not capable of undertaking a sustained campaign [against the British State], nor does it aspire to” according to the report.

It is also noted the creation of two new organizations, Oglaigh na hEireann (Irish Gaelic for “Volunteers of Ireland” and is used by the Irish Defence Forces and the various IRAs.) and the Republican Defence Army. However, the groups are small dissident factions according to the report.

The report also added that the two loyalist paramilitaries, the Ulster Defence Association (UDA) and the Ulster Volunteer Force (UVF) are also beginning to move from violence but at slower pace and not at a grassroots level like the IRA. Another loyalist paramilitary, the Loyalist Volunteer Force

The report was received warmly by Irish Toaiseach Bertie Ahern and British Prime Minister Tony Blair. Ahern, said “These positive and clear-cut findings are of the utmost importance and significance. It is time to make decisions and for Northern Ireland to look to the future.”

“The IRA has done what we asked it to do, and while issues like policing remain to be solved, the door is now open to a final settlement, which is why the talks next week in Scotland are going to be so important.” said Tony Blair in a live statement.

In a surprising reaction, the notoriously hardline leader of the Democratic Unionist Party, Ian Paisley, also welcomed the report. He believes that his party’s pressure is working and if Sinn Fein signs up to policing there could be a deal. Paisley said, “If the police question is settled absolutely on a democratic basis and principle we would have come a long way along the road.”

Sinn Fein leader Gerry Adams said “The DUP don’t have anything other than very limited options. They will or will not participate in power-sharing arrangements. If they don’t participate they are condemning people here, but particularly their own constituents, to second class public services, run by second class fly-in, fly-out British ministers. All the DUP can do is to delay, is to attempt to slow down, but they can’t stop the process of changing.”

Thursday, August 14, 2014

On Tuesday many internet routers, used to find the pathways to different parts of the web, reached their memory limit of 512,000 entries in the tables they use to store the routes, causing problems for many users.

A router is used to direct a user towards the area of the internet where they will find the content they are looking for, e.g. a web page. The recent problem was caused by the arbitrary memory limit built into the design of many aging routers. A limit was needed to prevent the cost of hardware from becoming prohibitively expensive in the days when physical data storage was still comparatively expensive. This small amount of memory in turn limits the number of directions which can be stored on a single router leading to different parts of the internet. When this limit was reached, it caused outages of services among Internet Service Providers. Many routers, including older ones provided by Cisco Systems Inc., are limited to storing a total of 512,000 routes or paths.

This limit was reached on Tuesday, reported to have been triggered by Verizon publishing another 15,000 paths. Those affected included eBay, LastPass, and clients of the web hosting company Liquid Web, who lost much of their services until Verizon withdrew some of these new paths. Problems nevertheless continued throughout the day, even after the withdrawal.

A longer term fix is possible, but it would require manually replacing old routers with newer, more capable ones. It is hard to tell what issues would temporarily cascade though the internet by taking down routers from part of the internet for maintenance. Many experts have warned that problems could continue until these difficult fixes have been implemented, although the recent switch to a newer form of IP Addresses, IPv6, will temporarily help the issue. Wired News reported that Andre Toonk, a network engineer, had stated that the number of network outages on the internet, typically around 1,500, yesterday peaked at 2,587, enough to become clearly noticeable.

Friday, March 23, 2007

In a press release earlier today, New York State Agriculture Commissioner Patrick Hooker, along with Dean of Cornell University’s College of Veterinary Medicine Donald F. Smith, confirmed that scientists at the New York State Food Laboratory identified Aminopterin as a toxin present in cat food samples from Menu Foods.

Menu Foods is the manufacturer of several brands of cat and dog food subject to a March 16, 2007 recall.

Aminopterin is a drug used in chemotherapy for its immunosuppressive properties and, in some areas outside the US, as a rat poison. Earlier reports stated that wheat gluten was a factor being investigated, and officials now state that the toxin would have come from Chinese wheat used in the pet food, where it is used for pest control. Investigators will not say that this is the only contaminant found in the recalled food, but knowing the identity of the toxin should assist veterinarians treating affected animals.

The Food Laboratory tested samples of cat food received from a toxicologist at the New York State Animal Health Diagnostic Center at Cornell University. The samples were found to contain the rodenticide at levels of at least 40 parts per million.

Commissioner Hooker stated, “We are pleased that the expertise of our New York State Food Laboratory was able to contribute to identifying the agent that caused numerous illnesses and deaths in dogs and cats across the nation.”

The press release suggests Aminopterin, a derivative of folic acid, can cause cancer and birth defects in humans and can cause kidney damage in dogs and cats. Aminopterin is not permitted for use in the United States.

The New York State Food Laboratory is part of the Federal Food Emergency Response Network (FERN) and as such, is capable of running a number of unique poison/toxin tests on food, including the test that identified Aminopterin.

Tuesday, June 1, 2010

Relics dated back to the Qing Dynasty were found under civil servants’ quarters at the Rua de D. Belchior Caneiro adjacent to The Ruins of St. Paul in Macau by archaeological teams at the Chinese Academy of Social Sciences.

Since St Paul’s College is believed to have been located under those quarters, the Macau government will demolish them in order to cope with the experts’ findings at the Ruins of St. Paul. The two blocks closer to the Ruins of St. Paul were demolished in March to make room for the archaeological project.

The relics included Chinese-styled porcelain tiles, eave tiles, potteries and iron artillery shells. Furthermore, a part of an ancient wall is found at a nearby construction site.

The walls are confirmed as parts of the Ruins of St. Paul as it does match the maps of it dated back to 1760, 1886, and 1912. By examining the walls, it is proved that the wall was constructed of at least five layers of stone, with layers of blue bricks on top of them, as well as rammed earth each measuring at least ten centimeters thick.

The remaining two buildings will be demolished next week for further investigation.

Sunday, April 24, 2005

New York Stock Exchange (NYSE) announced last Wednesday that it has agreed definitively to merge with Chicago-based Archipelago Exchange (ArcaEx) and form a new publicly traded, for-profit company known as NYSE Group. This announcement was followed two days later by NASDAQ®, which independently announced a definitive agreement to purchase Instinet Group.

Archipelago and Instinet are innovative e-trading (electronic trading) companies, and formerly were the two largest American rivals to NYSE and NASDAQ, in recent years taking increasingly large portions of their market share. The Securities and Exchange Commission (SEC) and other regulatory agencies still have to review and approve the transactions, particularly with respect to US securities law and antitrust law, in order to ensure that the marketplace remains lawful and competitive.

Other pending issues for NASDAQ include obtaining the approval of Instinet shareholders, as well as customary closing conditions. NYSE must obtain the approval of its members and Archipelago shareholders.

These changes, a reaction to increased e-trading competition and a changed regulatory environment, will result in NASDAQ and NYSE trading each other’s shares and attempting to grab market share, which many hope will drive down transaction costs and ultimately benefit consumers. However, at least one commentator, Dan Ackman writing in Forbes, has noted that the trading commission at the NYSE currently averages less than a nickel (US$0.05) per share, and was less enthusiastic about potential efficiency gains from electronic trading at the exchange.

The transactions are also intended to make the two leading American stock exchanges more globally competitive with such exchanges as the London Stock Exchange, the Frankfurt Stock Exchange, the Toronto Stock Exchange, and the Australian Stock Exchange located in Sydney.