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Sunday, June 28, 2020

Last month, a study conducted by archæologist Dr. Naomi Martisius and other researchers concluded Neanderthals living in Europe tens of thousands of years ago were more sophisticated than previously thought. The now-extinct species used to carefully select bones from a particular animal species to manufacture their bone tools, the research showed. The research was published on May 8 in Nature’s Scientific Reports journal.

Dr Martisius and her team used five bone tools discovered from Neanderthals’ sites in southwest France for this research. Four of these bone tools were found in a site called Abri Peyrony and the other one was from Pech-de-l’Azé I. These tools were just a few centimetres in size and were about 50 thousand years old, Dr Martisius told Wikinews. Microscopy analysis of these bone tools called lissoirs (smoothers) suggested Neanderthals used these tools for working animal skin to leathers.

The study stated the fauna of the sites were primarily medium-sized ungulates such as reindeer, in one layer nearly 90%. Despite the overabundance of medium-sized ungulates, Neanderthals used ribs of large bovids for making lissoirs. Dr Martisius told Wikinews this was likely due to the physical characteristics of the bovid ribs, which were “thicker” and “stronger” as compared to the “thin and flimsy ribs” of reindeers. In order to check the origins of the bone tools, the researchers used a technology called non-destructive Zooarchæology by Mass Spectrometry (ZooMS).

Instead of damaging the bone artefacts in order to discover its origins, the researchers collected collagen from the plastic containers in which these artefacts were kept. Collagen is a type of protein. These bone artefacts were kept in plastic containers: some were kept for about five years, some for just a few months. During this time, the collagen proteins from bone tools were stuck to the walls of its plastic containers. The collagen samples collected from the walls of the containers are broken into smaller molecules called peptides by using a chemical enzyme called trypsin.

After the trypsin has broken collagen fibres into peptides, it is analysed using a technology called Matrix-assisted laser desorption/ionization (MALDI) Time-of-Flight mass spectrometer (ToF MS). The assisting matrix is a coloured compound. The acidic peptide is combined with the matrix, vapourised, and peptides are released. Some of them are positively-charged particles which travel across a vacuum tube in an electric field. Depending on the weight of the peptides, these molecules reach the end of the vacuum tube at different instances of time, forming a spectrum. These graphs are like unique fingerprints of a species: they are different for different species of animals. Looking at the database of such graphs, taxonomic identifications of the collagen proteins came be made.

All four bone tools from Abri Peyrony gave positive results and showed that the bones were made from large bovids, even though reindeer were more abundant during that time. One of the advantages of using bovid ribs over reindeer’s thin ribs was the bovid ribs would be more resistant to breaking during flexion, Dr Martisius said.

Dr Martisius said such non-destructive ZooMS analysis was previously conducted, but for tools no older than a few centuries. She said such an analysis had never been previously conducted for artefacts so ancient.

Wikinews caught up with Dr Martisius to discuss this research in-depth.

Sunday, December 2, 2007

American heavy metal performer Ozzy Osbourne, who became famous as the lead vocalist for Black Sabbath and later as a solo act, has raised more than US$800,000 for The Sharon Osbourne Colon Cancer Program, founded by his spouse Sharon Osbourne at the Cedars Sinai Hospital, by auctioning off personal items.

A number of the items that he auctioned off over the two day period have been seen on his reality TV show The Osbournes, which featured home life with Sharon, Ozzy and their two children. Amongst some of the higher-priced items were a carved walnut Victorian-style custom built pool table which raised $11,250, a painting from Edourad Drouot which fetched $10,500, a pair of Ozzy’s famous round glasses which raised $5,250 and a dog bed given to Sharon by Elton John which sold for $2,375.

Some more famous items were also amongst the 500 lots offered. Ozzy’s black satin coat, complete with bat-wing cape, raised $3,300 and a hand-painted floral cup used regularly on The Osbournes made $1,625. A bronze plaque of a demon’s head that was regularly seen in its position adorning the front door of their house had been expected to go for $800 to $1,200instead raised $8,750. A wire model of the Eiffel Tower from on the kitchen table sold for $10,000, while skull-covered trainers Ozzy had worn reached $2,625. Bidders came from as far away as Germany to buy what they could from his mansion in Beverly Hills, California.

However, three cars included in the auction failed to attract bidders and did not sell. They were a 2006 Bentley Continental Flying Spur, estimated at $160,000 to $180,000, a 2005 Cadillac CTS-V sedan estimated at $30,000 to $40,000 and a 1950 Oldsmobile Futuramic 88 Club Coupe previously owned by author Danielle Steel estimated at $40,000 to $50,000. Sharon had earlier said of the cars “We’re not great car people. They really don’t do a lot for us.

Darren Julien, president of Julien’s Auctions, which organised the two-day sale, said “It did very well. It raised some good money for a very worthy cause.”

“For a celebrity garage sale, it was pretty spectacular.,” he went on. He also commented on the fact that there was fierce competition for the many artworks included. “We had Ozzy fans bidding against these sophisticated fine art buyers, which you don’t see every day. For the most part the metalheads were outbidding the art crowd.”

Thursday, June 5, 2008

On June 3rd, 2008, two United States Internet service providers (ISPs) announced they would begin tests to slow web access for their most active customers and charge them for extra speed. Comcast and Time Warner Cable, two of the largest ISPs in North America, both made separate announcements of their plans. The actions come in the wake of an investigation by the Federal Communications Commission (FCC), over whether Comcast had restricted some customers from sharing videos, music, and similar files. The FCC investigation led to a US Congress debate over whether and how much control ISPs should have over the flow of customer data.

Public interest groups complained in November 2007 to the FCC that Comcast had specifically targeted customers using applications that made use of the BitTorrent system, a popular form of file sharing. Free Press, an advocacy group that pushes for better oversight of cable operators such as Comcast, stated that Comcast practices were discriminatory towards users of the legal technology. “The cable companies see a hammer hovering above their heads and are scrambling to find ways to reduce the appearance of wrongdoing,” said Ben Scott, head of the group.

According to Roger Entner, a senior vice president from Nielsen IAG, as little as 5 percent of all Internet users may consume as much as 50 percent of all the bandwidth on the Internet. “This is the politically correct version of doing what Comcast had been doing before, though it takes the occasional [peer-to-peer] user off the hook,” Entner said. Sena Fitzmaurice, a Comcast spokesperson, said, “This says we won’t be looking at what type of traffic that there is, even though we still need to manage the network.”

Comcast’s tests are expected to begin in Chambersburg, Pennsylvania and Warrenton, Virginia.

While Comcast will attempt to throttle the speed of all its high-volume users, Time Warner Cable intends to use a different method. They will meter and bill clients, charging more money for faster speeds and larger amounts of transmitted data, functioning more like a traditional public utility, such as an electric company or cell phone service. Their metered billing test will begin on June 5 in Beaumont, Texas for newly enrolled customers. “Instead of raising prices across the board, consumers who are excessive users would pay,” said Alex Dudley, a Time Warner Cable spokesman. “It is clearly the fairest way to fund the investment that is going to be required to support that use.”

An Associated Press report that Time Warner Cable will bill customers between $29.95 to $54.90USD per month has been confirmed by the cable operator, with clients charged an extra $1 for each gigabyte (GB) by which they exceed their purchased plan. Art Brodsky, communications director of Public Knowledge, a consumer advocacy group in Washington D.C., has expressed concerns about the Time Warner Cable plan. Time Warner Cable’s most expensive offering, $54.90, comes with 15 megabits-per-second of data transfer speed and a 40 gigabyte limit on total data transfer.

“An HD (high-definition) movie is 8GB or so, three movies is more than half your allowance for a month, and heaven knows what else you might want to watch,” Brodsky says. “This is not a relieving congestion scheme as much as it is a rationing scheme. All it does is protect an inadequate infrastructure from the cable company.”

Thursday, August 10, 2006

A Chinese government official convicted of working for the Taiwanese government has been executed, and thousands of civil workers viewed the taped trial for “educational purposes” on Monday. The prisoner’s name was Tong Daning and was in his mid-50’s and held a rank just under “Assistant-Minister” before he was found guilty of espionage. According to the anonymous sources, Daning had been selling state sources for over 15 years, making a profit of about US$250,000.

Daning is the highest ranking person executed in China since 1999, when a Major General and Senior Colonel were executed for selling state secrets. China and Taiwan have been spying on each other ever since 1949, when the People’s Republic of China was officially created, but that has not stopped over 1 million Taiwanese citizens from working and investing over 100 billion USD in China. There have been many cases of espionage within the last few years, with all but two resulting in a death sentence.

Thursday, December 7, 2006

The New Zealand Government has tabled the Therapeutic Products and Medicines Bill, despite unprecedented political opposition.

In 2003 the Hon Annette King signed a Treaty with Australia agreeing to hand control of the natural health products sector over to an Australian regulatory body, however she needs to pass enabling legislation in New Zealand. “This will be a world-class joint scheme designed to regulate the safety, quality, effectiveness and promotion of therapeutic products in both New Zealand and Australia. That includes the regulation of complementary and alternative medicines, over-the-counter and prescription medicines, medical devices, blood and blood products and tissues and cellular therapies,” Ms King said.

Twice the Bill has been thrown out by select committees, but the Government is determined to ram it through Parliament, according to the New Zealand Health Trust.

“Late tonight the Bill was finally tabled, with no announcement from the Minister,” said Amy Adams, spokesperson for the Trust, “Clearly the Minister is keen to sneak it into Parliament under cover of the silly season, in the hope that she can keep it under the public’s radar.”

“I welcome the support of a majority of the House who want to see the Bill go to Select Committee where New Zealanders can have their say,” Ms King said.

The NZ Health Trust conducted research earlier this year which showed 62% of New Zealanders used natural health products. “This Bill represents a massive and irreparable change to the way we make rules for New Zealand dietary supplements,” Mrs Adams said.

“Under the proposed regime, well over a million New Zealand consumers would find the choice of products adversely affected, and experience cost increases. So you can see why the Government is trying to sneak this into the House without any fuss – they don’t want the public to know.”

All the political parties except Labour have pledged their opposition the proposal, despite some intense lobbying by Australian and New Zealand officials.

“It is a very serious thing to hand sovereignty over your country over to another nation,” Mrs Adams said. “And all the other political parties see the sense in making sure the sector is regulated from New Zealand – not as a minor state of Australia.”

Ms King said: “The Bill… ensures that New Zealand will have an equal say in the setting up and running of the new Authority and joint scheme.” The new authority will be like a crown-owned entity and will have to provide an anuual report and a statement of intent to parliament each year.

Monday, November 21, 2005

Possible under reporting of bird flu infections in China and other Southeast Asian countries may be promoting an illusory sense that human infections are very limited. Common press reports only describe fewer than 130 people as infected with H5N1 avian flu and that fewer than 70 have died worldwide. Yet, there are enormous problems getting accurate data, especially in a country like China with a population of more than a billion.

“Reporting a suspected bird flu infection in bird or humans is a very unlikely event,” said Dr. Shoshana Zimmerman of the eHealth Institute. She is also a founder of www.birdflubeacon.com, a site dedicated to bird flu issues. “There are very few incentives to report, and lots of reasons to refrain from reporting. From the viewpoint of local rural small farmers, there is little to be gained and much to be lost by reporting an infection. The worse threat is that their flocks could be killed, leaving them destitute.”

There are many factors which mitigate against reporting bird or human infections of bird flu.

• The deaths of chickens, ducks, and birds are common events for farmer. Even when a large number die at one time they may see no purpose in reporting the deaths.

• When a human dies in locations with little or no medical services, the rural farmer’s priority for discerning the cause of death may be low.

• In rural areas most people are not taken to hospitals when they are sick.

• Bird flu symptoms are not widely known. If the symptoms are not known, they will not be recognized and reports of possible bird or human infections can not be made.

• The expenses required for detection are those of proper collection and shipment of samples to one of approximately 200 laboratories worldwide, as well as the testing procedure that requires a two week period of waiting before results are obtained.

• The lack of incentive for countries to report large scale outbreaks as it may lead to widespread panic and economic loss, as occurred with SARS. These factors can be seen at work in the way that the first bird flu death was reported in China,” Dr. Zimmerman stated.

A young woman, Zhou Maoya, died after returning home to the village of Yantan in Annui province to prepare for her wedding. Her family has stated that they did not take her to the hospital because they thought it would not do any good. Officials also note rural Chinese also often cite relatively expensive medical costs as a reason for not seeking treatment when sick.

Although initially authorities attributed her death to pneumonia the resulting political pressure prompted China to invite the World Health Organization to send experts to investigate. The authorities then rescinded the previous position and attributed her death to bird flu based on the similarity of the symptoms that she was reported to exhibit with those of bird flu. The village was quarantined and journalists were denied access. It is not known how many others might be infected in the village. Official announcements were made of plans to vaccinate and cull birds.

A local government official, Fan Qian, told AFP that it was believed Zhou was infected while she was outside of the province.

Fan Tan, a local official, told AFP news that 1,000 birds in Yantan had been culled (killed). Plans were announced to vaccinate 2 million poultry in the area, a huge and difficult task.

Zhang, another official, said authorities had met with all villagers to give them flu vaccinations and to tell them how to protect themselves against the bird flu virus, including not consuming poultry products. It is known that flu vaccinations do not protect against bird flu.

Villagers and local officials minimized the threat. In outlying areas of Yantan, residents said that they did not know of any new outbreaks. Other possible infections have been attributed to similar common causes but there have not been any tests performed validating those attributions.

Fan Litan, a peasant woman from Fantu village, about 2 miles from Yantan, lost many of her ducks, and chickens and also a dog; she has attributed these deaths to the acts of hooligans. She said her family had been extremely frightened when her animals suddenly died. “We were scared to death,” said Fan, standing next to a red sign posted on the outside wall of her home that said: “Prevention and control by the masses is basic for people.” Fan said ducks and chickens are all healthy but she admitted that she had stopped eating poultry. No testing of these birds has been reported yet.

According to a recent AFP report from Liuchang, 59 miles south of Yantan, the obstacles to identifying infections are enormous.

Like many, one Liuchang villager named Wang Hemin said he was concerned and would keep a closer eye on his ducks and chickens, but felt no immediacy since the infection was not in his province. He learned about bird flu on TV, and is aware that officials have come to his village of 2,700 people to warn residents about the virus. They offered guidelines: they told people that poultry which die suddenly could have contracted bird flu and should not be eaten or sold and that such an incident should also immediately be reported. However, the symptoms of H5N1 bird flu were not directly described.

Residents have not yet been fully informed of what symptoms to look for in ill poultry–they are fever, diarrhea, teary eyes and swelling in the legs of the birds. Though a pledge was made earlier in the week to vaccinate 2 million birds immediately, no bird vaccinations in this area have been reported yet.

In another nearby village, Nazahuang, chickens scuttle in and out of houses. One resident, Fan Jiexu, 73, said no officials had yet warned her village to take precautions. Throughout rural areas, it is customary for chickens to scuttle in and out of homes. Ducks and bird often die and are eaten by villagers when it is believed safe to do so.

China has reported 17 avian flu outbreaks as of this week. Despite the Chinese government issued high alerts, critical information is not being adequately communicated to some rural villages. The size of the poultry population, the common and normal occurrence of poultry death on farms, and status of roughly 70% of the poultry population as being kept in backyards are factors complicating infection control.

The head of World Health Organization’s China office, Henk Bekedam, is aware that slow reaction to bird flu threats and difficulty monitoring poultry in the world’s most populous country makes control of its spread challenging.

Testing is required to confirm H5N1 virus, and positive test results lead to the killing of nearby flocks. The incentive for many villagers, officials, and governments to minimize reports of H5N1 virus infections and severe medical and economic complications for making confirmations of infection are obstacles opposing complete and full reporting of the spread and infection rates of the virus.

Thursday, March 9, 2017

In a study that appeared on Monday in Biological Psychiatry, scientists from the Universities of California and North Carolina, with several other universities in the United States and Canada, report a strong correlation between abnormal distribution of cerebrospinal fluid in infants and later development of autistic symptoms.

“The more extra-axial CSF present at six months, the more severe the autism symptoms when the kids were diagnosed at 24 months of age,” said first author Dr. Mark Shen, a postdoctoral fellow at the University of North Carolina.

The study covered 343 children examined aged six months, twelve months, and twenty-four months, 221 of whom had older siblings with autism. Children with higher than usual volumes of cerebrospinal fluid in the subarachnoid space — the area just around the brain — were more likely to be diagnosed with autism later in life, with a strong correlation in the high-risk group. Ultimately, cerebrospinal volume was able to provide an early diagnosis of probably ASD in high-risk children with 70% accuracy. The six-month-old babies who later went on to a diagnosis of autism had an average of 18% more CSF by volume than those who were not so diagnosed. This built on the findings of a 2013 study that covered only 55 children.

Researchers said it is not clear whether a large amount of cerebrospinal fluid actually causes autism or not. While studies have shown that cerebrospinal fluid, once thought to act solely as a cushioner and shock absorber for the brain, can influence the way neurons grow, Shen speculated that the large amount of fluid may itself be a symptom: “We believe that extra-axial CSF is an early sign that CSF is not filtering and draining when it should. The result is that there could be a buildup of neuro-inflammation that isn’t being washed [a]way.”

Currently, coauthor David Amaral said, children are not diagnosed with autism spectrum disorders until they are old enough for their behavior to change, usually at two or three years old. Researchers said these findings could be used to develop an early diagnostic system usable when the patient is as young as six months old.