Wednesday, May 4, 2005

NASA‘s Mars Reconnaissance Orbiter (MRO), the latest robotic spacecraft destined for Mars, arrived at Kennedy Space Center‘s Shuttle Landing Facility on April 30 aboard a C-17 cargo plane and was delivered to the Payload Hazardous Servicing Facility to begin processing. Launching is scheduled for August 10, 2005.

With a mission time line through 2010, the MRO will conduct studies of the Martian atmosphere, surface and subsurface in far greater detail than previous missions. Possible landing sites for future Mars landings will be evaluated and the orbiter will also act as a high-data-rate communications relay for surface missions.

“Great work by a talented team has brought Mars Reconnaissance Orbiter to this milestone in our progress toward a successful mission,” said Jim Graf of NASA’s Jet Propulsion Laboratory (JPL) project manager for the mission.

Multiple mechanical assembly operations and electrical tests are scheduled to verify the craft’s readiness for launch. A May test to verify communication abilities through NASA’s Deep Space Network will be conducted and in June deployment of the high gain communications antenna will be tested. A deployment test is also scheduled for the Orbiter’s large solar arrays.

The MRO will be filled with hydrazine fuel in July for its “Mars orbit insertion burn” which reduces the craft’s velocity and places it in orbit about the red planet. July 26 will see the Mars Reconnaissance Orbiter installed in an Atlas V rocket fairing for final assembly with the rocket on July 29.

After the scheduled launch, the MRO will spend seven months cruising to Mars and another six months aerobraking after orbital insertion. A variety of scientific instruments on board will be used to search for geological evidence of past seas, ancient shorelines.The craft was built near Denver by Lockheed Martin Space Systems which also supplies the Atlas V launch vehicle.

The Mars Reconnaissance Orbiter mission is managed by JPL, a division of the California Institute of Technology, Pasadena, for the NASA Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project. International Launch Services, a Lockheed Martin joint venture, and Lockheed Martin Space Systems are providing launch services for the mission.

More information about the Mars Reconnaissance Orbiter is available at: Mars Reconnaissance Orbiter website

Wednesday, January 16, 2008

Yesterday at 6:00 UTC at 60° S 78° E , a Japanese whaling ship detained two Sea Shepherd Conservation Society activists in the Southern Ocean. Japan’s Institute of Cetacean Research (IRC) deny Sea Shepherd claims that they have been abused. The Japanese government has assured the Australian Government the release of the men.

According to the conservation agency Sea Shepherd, Australian Benjamin Potts, 28, a helicopter assistant, and Briton Giles Lane, an engine room worker, were detained on board a Yushin Maru No. 2 after delivering a letter asking the ship to exit Antarctic waters .

Captain Paul Watson of the Sea Shepherd’s vessel, Steve Irwin, said that the Japanese “tried to throw them overboard, then they tied them to a bulkhead and were beating them”.

He alleged that the men were tied to the radar masts before being brought below deck after which the men were not seen. Sea Shepherd’s international director, Jonny Vasic, claimed that they were “basically strapped by the arms with zip-ties and tied with rope around their chests” for 2½ to three hours.

The captain said he was surprised as he expected Japanese whale ships to treated his men more decently.

“We are concerned but I know the Australian and British governments are in touch with the Japanese government.”

Sea Shepherd said it has photographic evidence that the whalers were abusing the men.

However, the Japanese ship refuted the allegations.

“Any accusations that we have tied them up or assaulted them are completely untrue,” Director-general of the IRC Minoru Morimoto said in the press release, “It is illegal to board another country’s vessels on the high seas.”

Detaining the activists was the “only way”, he said. “You couldn’t have them running around the deck not knowing what they’re going to do.”

He said that the activists were making attempts to entangle the screw and were throwing bottles of butyric acid, as rancid butter, onto the deck of the vessel before boarding the vessel. Mr Watson has confirmed this and said that they were to act as a stink bomb but their actions were still peaceful.

Hideki Moronuki, the chief of the whaling section of The Fisheries Agency of Japan, claimed that “nobody took violent action against the two illegal intruders”.

Mr. Moronuki said that they were treated “very, very humanely” and were provided with “a warm, delicious hot meal”, “[a] warm, nice bath” and “[a] nice bed with clean white sheets”.

Australian foreign minister Stephen Smith said that the Japanese government promised him the release of the men late yesterday night.

“Late last night I was advised the Japanese had agreed to this and they had instructed the relevant whaling ship to return the men to the Steve Irwin,” he told ABC radio.

Mr. Moronuki said the “two illegal intruders” will not be released by the vessel’s captain until “Paul Watson has accepted the conditions of the safety of the Japanese vessel”. He said he knew nothing of the comments that the Japanese government agreeing to release the men.

Mr. Watson said the Japanese were “[holding] hostages and make demands” and were acting like “a terrorist organisation”. A press release said Sea Shepherd “will not negotiate with poachers and demands that the Japanese whalers release Benjamin Potts and Giles Lane as soon as possible”.

Mr. Watson said he would not send a zodiac to collect the men as requested in an email because it “endangers the life of the crew, to put them out in these waters in a small boat, 10 miles out of view”.

On Sky TV, IRC spokesman Glenn Inwood said Sea Shepherd were “not answering phone calls or emails at this stage” to take advantage of “fair amount of media coverage” but they were “still making attempts to contact them”.

An Australian Federal Police spokeswoman said that Sea Shepherd made a police report at around 7:00 UTC.

Saturday, October 23, 2021

China property giant Evergrande Group wired USD83.5 million in interest owed in an offshore bond from September 23 on Thursday, temporarily averting default, according to a Reuters source and Chinese newspaper Securities Times.

The wire to a Citibank fiduciary account following a 30-day grace period came after assurances by various members of the Chinese government, Reuters reported. At a Beijing forum Wednesday, Chinese Vice Premier Liu He described the risks as controllable, and chairman of the China Securities Regulatory Commission Yi Huiman said that while authorities needed to curb excessive debt more broadly by “improv[ing] the effectiveness of the constraint mechanism on debt financing”, the matter would be dealt with properly.

Once China’s top real estate developer, Evergrande had accumulated approximately USD305 billion in liabilities, two per cent of the Chinese gross national product, after “dwindling resources” cut its value by 80%, according to Reuters. September data revealed Chinese home sales by value fell by nearly 17% year-on-year, according to The Guardian, and fears over its default led to a slowdown in China’s third quarter GDP growth to a year low of 4.9%. Two sale negotiations with rival developers Hopson Development and Yuexiu, valued at USD2.6 billion and USD1.7 billion, respectively, were suspended, reportedly due to a lack of consent by the government of Guangdong province currently overseeing Evergrande’s restructuring.

News of Evergrande’s remittance caused its shares to rise by as much as 7.8% this morning after a two-week pause in trading for the anticipated sale of 50.1% in Evergrande Property Services Group, and offering some reprieve for bondholders, according to Reuters. Portfolio manager at GaoTeng Global Asset Management James Wong, interviewed by The Guardian, called the news “a positive surprise”, adding “[i]f Evergrande pays this time, I don’t see why it won’t pay the next time.” Jun Rong Yeap for IG Asia pte., interviewed by Bloomberg, said the report “overturned” the narrative “that Evergrande will face difficulty in securing cash ahead”.

Further missed payments are due October 29 and November 11 after similar 30-day grace periods; including yesterday’s USD83.5 million, nearly USD280 million is owed to bondholders.

Stocks have been down for many major Chinese developers: Reuters Wednesday reported year-to-date stock prices fell 87.8% for Sinic Holdings, currently in Fitch Ratings’ ‘restricted default’ after failing to make an October 18 bond payment valued, according to The Guardian, at USD246 million; 80.2% for Evergrande itself; 78.3% for E-House, 58.5% for Fantasia Holdings and 54.6% for Kaisa Group, which defaulted in 2015 and had bonds reach record lows.

Estimates of the Chinese real estate market’s size range from 16 to 25% of the Chinese gross domestic product, according to The Guardian. Chinese President Xi Jinping’s aim to transform the country’s economy from one of debt-fuelled “inflated” growth to one of improved “quality and returns” included imposing regulations on developers that limited their capacity to borrow. A Guardian comment piece from economist George Magnus published on October 15 made reference to China’s “ghost cities” and “rampant credit creation” that has given rise to high vacancy rates and the “financialisaton of housing”.

Wednesday, September 7, 2011

Fire authorities struggled to manage a vast string of wildfires stretching across the eastern part of Texas on Sunday. News sources report that prolonged dry conditions and excessive winds were the main factors in the blazes.

Traffic along Interstate-20 near Longview, Texas was backed up for several miles. Fire authorities fought a brush fire in Tyler, near Tyler Pounds Field airport; a large truck near this area was also ablaze. A fire threatened a power sub-station near the city of Van. Regional utilities companies reported Sunday that over 8,000 customers were without electricity.

A church in Hallsville opened to assist evacuees. Residences spanning several counties were evacuated by authorities for safety reasons. Multiple residences in north-central Anderson county were evacuated by fire officials about two hours after a large blaze there erupted. Authorities closed off a 9-mile perimeter of roadways surrounding this blaze. Many homes in the area were blanketed with a thick haze of visible smoke. One evacuee told Wikinews, “I have [homeowner’s] insurance. I got my dog, that matters a’ lot to me.”

• A wildfire near the north-central part of Anderson county Image: Paul M. Budd.

• Fire authorities evacuate residents in Anderson county Image: Buddpaul.

Friday, September 8, 2006

From September 3 to 8, experts gathered at the 10th International Congress on Obesity in Sydney, Australia, to discuss what they call the worldwide “obesity epidemic”. According to the World Health Organization (WHO), 1 billion people in the world today are overweight, and 300 million of those are obese. “Obesity and overweight pose a major risk for serious diet-related chronic diseases, including type 2 diabetes, cardiovascular disease, hypertension and stroke, and certain forms of cancer“, a WHO fact sheet states. According to AP, experts at the conference “have warned that obesity is a bigger threat than AIDS or bird flu, and will easily overwhelm the world’s health care systems if urgent action is not taken”.

Of particular concern is the large number of overweight children. Dr. Stephan Rossner from Sweden’s Karolinska University Hospital, a leading obesity expert who was present at the conference, has warned that as a result of the increasing number of overweight children, “we will have, within a decade or two, a number of young people who are on kidney dialysis. There will not be organs for everybody”. UK-based International Obesity Task Force has said that junk food manufacturers target children, for example, through Internet advertising, chat rooms, text messages, and “advergames” on websites. Politicians are not doing enough to address the problem of obesity, including childhood obesity, the experts said.

According to Wikipedia, examples of junk food include, but are not limited to: hamburgers, pizza, candy, soda, and salty foods like potato chips and french fries. A well-known piece of junk food is the Big Mac. The US version of just one Big Mac burger contains 48% of calories from fat, 47% US Recommended Dietary Allowance (RDA) of fat, 52% RDA of saturated fat, 26% RDA of cholesterol, 42% RDA of sodium, and little nutritional value. It also has 18% of calories from protein. According to WHO, most people need only about 5% calories from protein. Staples such as rice, corn, baked potatoes, pinto beans, as well as fruits and vegetables such as broccoli, cauliflower, zucchini, oranges, and strawberries, provide more than this required amount of protein without the unhealthy amounts of fats or sodium, without cholesterol, and with plenty of fiber, vitamins, and minerals.

Both WHO and the American Centers for Disease Control and Prevention (CDC) define overweight in adults as a Body Mass Index (BMI) of 25 or above, and obese as a BMI of 30 or above. To combat overweight and obesity, WHO recommends that, among other things, people should be taking the following steps

• eating more fruit and vegetables, as well as nuts and whole grains;
• engaging in daily moderate physical activity for at least 30 minutes;
• cutting the amount of fatty, sugary foods in the diet;
• moving from saturated animal-based fats to unsaturated vegetable-oil based fats.

Tuesday, March 29, 2005A team of Australian surgeons yesterday reattached both hands and one foot to 10-year-old Perth boy, Terry Vo, after a brick wall which collapsed during a game of basketball fell on him, severing the limbs. The wall gave way while Terry performed a slam-dunk, during a game at a friend’s birthday party.

The boy was today awake and smiling, still in some pain but in good spirits and expected to make a full recovery, according to plastic surgeon, Mr Robert Love.

“What we have is parts that are very much alive so the reattached limbs are certainly pink, well perfused and are indeed moving,” Mr Love told reporters today.

“The fact that he is moving his fingers, and of course when he wakes up he will move both fingers and toes, is not a surprise,” Mr Love had said yesterday.

“The question is more the sensory return that he will get in the hand itself and the fine movements he will have in the fingers and the toes, and that will come with time, hopefully. We will assess that over the next 18 months to two years.

“I’m sure that he’ll enjoy a game of basketball in the future.”

The weight and force of the collapse, and the sharp brick edges, resulted in the three limbs being cut through about 7cm above the wrists and ankle.

Terry’s father Tan said of his only child, the injuries were terrible, “I was scared to look at him, a horrible thing.”

The hands and foot were placed in an ice-filled Esky and rushed to hospital with the boy, where three teams of medical experts were assembled, and he was given a blood transfusion after experiencing massive blood loss. Eight hours of complex micro-surgery on Saturday night were followed by a further two hours of skin grafts yesterday.

“What he will lose because it was such a large zone of traumatised skin and muscle and so on, he will lose some of the skin so he’ll certainly require lots of further surgery regardless of whether the skin survives,” said Mr Love said today.

The boy was kept unconscious under anaesthetic between the two procedures. In an interview yesterday, Mr Love explained why:

“He could have actually been woken up the next day. Because we were intending to take him back to theatre for a second look, to look at the traumatised skin flaps, to close more of his wounds and to do split skin grafting, it was felt the best thing to do would be to keep him stable and to keep him anaesthetised.”

Professor Wayne Morrison, director of the respected Bernard O’Brien Institute of Microsurgery and head of plastic and hand surgery at Melbourne’s St Vincent’s Hospital, said he believed the operation to be a world first.

Tuesday, September 1, 2015

Nick Bos, of the University of Helsinki, studies “the amazing adaptations social insects have evolved in order to fight the extreme parasite pressure they experience”. In a recently-accepted Evolution paper Bos and colleagues describe ants appearing to self-medicate.

The team used Formica fusca, an ant species that can form thousand-strong colonies. This common black ant eats other insects, and also aphid honeydew. It often nests in tree stumps or under rocks and foraging workers can sometimes be spotted climbing trees.

Some ants were infected with Beauveria bassiana, a fungus. Infected ants chose food laced with toxic hydrogen peroxide, whereas healthy ants avoided it. Hydrogen peroxide reduced infected ant fatalities by 15%, and the ants varied their intake depending upon how high the peroxide concentration was.

In the wild, Formica fusca can encounter similar chemicals in aphids and dead ants. The Independent reported self-medicating ants a first among insects.

Bos obtained his doctorate from the University of Copenhagen. He began postdoctoral research at Helsinki in 2012. He also runs the AntyScience blog. The blog aims to help address “a gap between scientists and ‘the general public’.” The name is a pun referencing ants, its primary topic, science, and “non-scientific” jargon-free communication. He now discusses his work with Wikinews.

((Wikinews)) What first attracted you to researching ants?

Nick Bos Me and a studymate were keeping a lot of animals during our studies, from beetles, to butterflies and mantids, to ants. We had the ants in an observation nest, and I could just look at them for hours, watching them go about. This was in my third year of Biology study I think. After a while I needed to start thinking about an internship for my M.Sc. studies, and decided to write a couple of professors. I ended up going to the Centre for Social Evolution at the University of Copenhagen where I did a project on learning in Ants under supervision of Prof. Patrizia d’Ettorre. I liked it so much there I ended up doing a PhD and I’ve been working on social insects ever since.

((Wikinews)) What methods and equipment were used for this investigation?

NB This is a fun one. I try to work on a very low budget, and like to build most of the experimental setups myself (we actually have equipment in the lab nicknamed the ‘Nickinator’, ‘i-Nick’ and the ‘Nicktendo64’). There’s not that much money in fundamental science at the moment, so I try to cut the costs wherever possible. We collected wild colonies of Formica fusca by searching through old tree-trunks in old logging sites in southern Finland. We then housed the ants in nests I made using Y-tong [aerated concrete]. It’s very soft stone that you can easily carve. We carved out little squares for the ants to live in (covered with old CD covers to prevent them escaping!). We then drilled a tunnel to a pot (the foraging arena), where the ants got the choice between the food with medicine and the food without.

We infected the ants by preparing a solution of the fungus Beauveria bassiana. Afterwards, each ant was dipped in the solution for a couple of seconds, dried on a cloth and put in the nest. After exposing the ants to the fungus, we took pictures of each foraging arena three times per day, and counted how many ants were present on each food-source.

This gave us the data that ants choose more medicine after they have been infected.

The result that healthy ants die sooner when ingesting ROS [Reactive Oxygen Species, the group of chemicals that includes hydrogen peroxide] but infected ants die less was obtained in another way (as you have to ‘force feed’ the ROS, as healthy ants, when given the choice, ignore that food-source.)

For this we basically put colonies on a diet of either food with medicine or without for a while. And afterwards either infected them or not. Then for about two weeks we count every day how many ants died. This gives us the data to do a so-called survival analysis.

We measured the ROS-concentration in the bodies of ants after they ingested the food with the medicine using a spectrophotometer. By adding certain chemicals, the ROS can be measured using the emission of light of a certain wave-length.

The detrimental effect of ROS on spores was easy to measure. We mixed different concentrations of ROS with the spores, plated them out on petridishes with an agar-solution where fungus can grow on. A day after, we counted how many spores were still alive.

((Wikinews)) How reliable do you consider your results to be?

NB The results we got are very reliable. We had a lot of colonies containing a lot of ants, and wherever possible we conducted the experiment blind. This means the experimenter doesn’t know which ants belong to which treatment, so it’s impossible to influence the results with ‘observer bias’. However, of course this is proof in just one species. It is hard to extrapolate to other ants, as different species lead very different lives.

((Wikinews)) Where did the ants and fungus you used come from? How common are they in the wild?

NB For ants, see above about the collection.

This species of fungus does appear in Finland, but we chose to use a different strain from Denmark (with thanks to Prof. J. Eilenberg and the laboratory technician Louise Lee Munch Larsen from the University of Copenhagen). Animals can adapt to local strains (‘local adaptation’), and just to make sure we thought it would be good to use a strain of fungus that the ants definitely did not evolve specific resistances against. This means that the reaction of the ants (to self-medicate) is very likely to be a general response, and not just against their local fungal enemies.

((Wikinews)) Are there any ethical considerations around exposing ants to toxins and parasites?

NB Legally, no. Insects do not have any ‘rights’ as such regarding ethics. That said, we do take measures to not make them ‘suffer unnecessarily’. For example, dissections are done when the ants are anesthetized (either by CO2 or Ice), and when ants need to be killed, we do it in alcohol, which kills the ants in a matter of seconds. So while the ants do not have ‘rights’ as such, we still try to handle them with as much respect as possible (even though the experiment involves infecting them with a deadly fungus).

But even though the 12,000 ants in our study sounds like a lot (and it is), this is negligible in the ‘grand scheme of things’. It has been calculated that in the Netherlands alone, nearly a trillion insects die against just the licence-plates of cars every six months. I don’t own a car, so that means I’m excused right? 😉

((Wikinews)) This is the first evidence for self-medicating insects. How widespread do you think this phenomenon could be in reality?

NB It’s not actually the first evidence for self-medication in insects. Moths and fruit flies definitely do it, and there’s evidence in honey bees and bumble-bees as well. So it seems to be quite wide-spread in the insect world. I have no doubt that as time goes on, there will be more and more cases documented. Insects (and animals in general) seem to be quite good at taking care of themselves.

((Wikinews)) How might ants locate healing substances in the wild?

NB Very good question. This is something that’s important to know. If they would only do it in the lab, the behaviour wouldn’t be very interesting. We have some guesses where they might get it from, but at the moment we don’t know yet. That said, I plan to investigate this question (among others) further [in] the next couple of years.

((Wikinews)) For your PhD you researched ants’ scent-based communications. Could healthy ants perhaps tell other ants are infected and encourage this behaviour?

NB There’s not much known about this. There’s conflicting evidence about whether sick ants actually smell different from healthy ones or not. At the moment it seems that sick ants mostly take care of the problem themselves. Sick ants stop most interaction with nestmates and especially brood, and leave the nest to die in isolation. This is probably for reducing chance of infecting nestmates, but of course it also reduces the work load of their nest-mates, as their corpse doesn’t have to be dragged out etc.

So as an answer to the question, I would find it unlikely that such a behaviour would evolve, but it’s not known yet.

((Wikinews)) Ants generally avoided the peroxide if they were healthy, but in some circumstances might they try to build resistance against infection in advance?

NB Who knows? Also not known yet unfortunately. That said, there is a very interesting study about resin collection in ants. Wood ants collect tree-resin, which has anti-microbial properties. They collect this even if not infected, and when you infect them, they don’t collect more of the resin than normal. So basically it seems like they collect it in order to keep diseases out of the nest, so they stop the disease before it can actually infect them.

((Wikinews)) Are there plans to follow this research up? Might you research other species? Other substances?

NB I first want to find out where they get it from in nature. There might be many sources of medicine (recent evidence suggests that tobacco plays a similar role for bumble bees). Dalial Freitak, who is also on this paper is currently running tests with Ph.D. student Siiri Fuchs (who is also on the paper) with other substances to see if any have the same effect as H2O2 [hydrogen peroxide].

Once the behaviour has been well described in this species of ant, I might do a comparison with other species. For example, once we find the source of the medicine in nature… would species without access to this source also have evolved the same behaviour in the lab? And if so… where would they get it from?

Also… can ants medicate their friends? 🙂

((Wikinews)) What other research are you working on right now?

NB Phew…lots! 🙂

I still have some questions left unanswered from my Ph.D. work related to how ants recognize who is a friend and who isn’t. I also started collaborating with Prof. Michael Poulsen from the University of Copenhagen on immunity in fungus-growing termites, as well as their chemical recognition abilities. Furthermore we’re working on social parasitism in wood-ants (ants have lots of animals exploiting the nest for shelter and resources, which all somehow have to get in to the fortress without getting killed).