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Friday, November 3, 2006

On November 13, Torontoians will be heading to the polls to vote for their ward’s councillor and for mayor. Among Toronto’s ridings is Eglinton—Lawrence (Ward 16). Two candidates responded to Wikinews’ requests for an interview. This ward’s candidates include Steven Bosnick, Charm Darby, Albert Pantaleo, Yigal Rifkind, Karen Stintz (incumbent), and Steve Watt.

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

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.

Wednesday, June 20, 2007

A security camera at the First Judicial District courthouse in Santa Fe, New Mexico has captured an unidentified star shaped object that appears to spin, on camera. The object was recorded on Friday and some say it is a ghost, a reflection, or a piece of cottonwood fluff.

Alfred Arana, a Sheriff Deputy for Santa Fe County first discovered the object after he began to watch the surveillance recordings from the day before. He then requested Sgt. Vanessa Pacheco watch the recording to see what she thought. The object appeared at the time stamp of just before 7:30 a.m. (pacific time) on Friday morning.

“Generally, most people who’ve seen (the video) believe it is some type of spirit or ghost. It’s something unexplainable, (but) I don’t believe in ghosts so I don’t think that’s what it is,” said Sgt. Pacheco.

Public defender Earl Rhoads who works at the courthouse says that the object is totally explainable and that it is likely a piece of fluff from the cottonwood trees that stand close to the camera.

“I’m not willing to say it’s proof of paranormal activity. I think it’s totally explainable. I’m open to other possibilities, but my best guess at this point is that it’s a small floating object near the camera lens, probably a fluff of cotton from the cottonwoods nearby or an insect or something like that,” said Rhoads.

In the video, the object moves from the back door of the courthouse (in the upper right corner of the screen). It then floats, while rotating, shining and appearing in the shape of a star, toward the bottom right corner of the screen, past a police car, and then out of view.

Monday, September 24, 2007

Marion Schaffer is running for the Green Party of Ontario in the Ontario provincial election, in the Oakville riding. Wikinews’ Nick Moreau interviewed her regarding her values, her experience, and her campaign.

Stay tuned for further interviews; every candidate from every party is eligible, and will be contacted. Expect interviews from Liberals, Progressive Conservatives, New Democratic Party members, Ontario Greens, as well as members from the Family Coalition, Freedom, Communist, Libertarian, and Confederation of Regions parties, as well as independents.

Sunday, August 21, 2005

A robotic system at Stanford Medical Center was used to perform a laparoscopic gastric bypass surgery successfully with a theoretically similar rate of complications to that seen in standard operations. However, as there were only 10 people in the experimental group (and another 10 in the control group), this is not a statistically significant sample.

If this surgical procedure is as successful in large-scale studies, it may lead the way for the use of robotic surgery in even more delicate procedures, such as heart surgery. Note that this is not a fully automated system, as a human doctor controls the operation via remote control. Laparoscopic gastric bypass surgery is a treatment for obesity.

There were concerns that doctors, in the future, might only be trained in the remote control procedure. Ronald G. Latimer, M.D., of Santa Barbara, CA, warned “The fact that surgeons may have to open the patient or might actually need to revert to standard laparoscopic techniques demands that this basic training be a requirement before a robot is purchased. Robots do malfunction, so a backup system is imperative. We should not be seduced to buy this instrument to train surgeons if they are not able to do the primary operations themselves.”

There are precedents for just such a problem occurring. A previous “new technology”, the electrocardiogram (ECG), has lead to a lack of basic education on the older technology, the stethoscope. As a result, many heart conditions now go undiagnosed, especially in children and others who rarely undergo an ECG procedure.