Sunday, July 3, 2011

Philippines Foreign Secretary Albert del Rosario is scheduled to visit China from July 7 to 9, raising hopes that a territorial dispute between the two countries may be resolved.

A six-nation dispute has escalated in the sea concerning territorial claims to several islands including the Spratly Islands. The area is thought to be rich in natural gas and oil. Both the Philippines and China wish to have a peaceful resolution to this conflict. “I’ve been invited to Beijing and we’re looking for peaceful means to settle the challenges facing us,” said Del Rosario.

The news comes after the United States and the Philippines began a series of naval exercises last week in the South China Sea, scheduled to last for 11 days. A Philippine military commander stated that the drills are part of an annual series of activities taking place under a defense agreement between the two countries and have nothing to do with the territorial dispute.

The Philippines maintains a close relation with the U.S. as a former territory of the nation.

The drills come at a time when several competing disputes in the South China Sea have begun to intensify. “Since February 25th, we actually have noted as many as nine intrusions of different varieties, but clearly becoming more aggressive and more frequent,” said Del Rosario. Several countries in Asia, including China, the Philippines, Vietnam, Brunei, Malaysia, and Taiwan, have territorial claims in the area spanning the Spratly and Paracel Islands. The region may be rich in oil and gas reserves. The US and Philippines have urged the Association of Southeast Asian Nations (ASEAN) to address the conflict.

Secretary of State Hillary Clinton has argued that the United States would remain neutral regarding the disputes. She has also said that the United States has a “national interest” in freedom of navigation, respect for international law, and unimpeded, lawful commerce in the South China Sea.” Both countries are bound by a 1951 Mutual Defense Treaty.

On June 27, the US Senate unanimously passed a motion condemning “the use of force by naval and maritime security vessels from China in the South China Sea.” China, on the other hand, has stated that it will not use force to resolve disputes in the South China Sea.

Tuesday, July 7, 2009

Australia’s cricketer Brett Lee is out of the first Ashes test match – which starts on July 8 in Cardiff – with a torn muscle in his left side. He is also doubtful to play the second Test at Lord’s, which begins on July 16. It will be at least two weeks before he can start training in the nets again.

“I am very very disappointed and gutted that I will not be there for the first Test match but I will find a way to bounce back,” said Lee. “I still see myself hopefully playing a major role for Australia through the end part of the series, whether that’s the second, third, fourth or fifth Test match depending on how things go.”

The fast bowler complained about soreness in his left side after playing the England Lions at Worcester. Scans on Monday revealed he has a tear to his rib muscle. Other reports have described the injury as a strained abdominal muscle.

Kevin Pietersen commented on Lee’s absence saying it was “a huge, huge, huge loss” for Australia.

Australia now have to choose which player to pick as a replacement for Lee. Two likely options are spinner Nathan Hauritz or pace bowler Ben Hilfenhuas.

England will start their campaign on Wednesday to attempt to regain the ashes after Australia completed a 5-0 whitewash last time.

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.

Monday, May 7, 2018

On Saturday, United Launch Alliance launched a Atlas V 401 rocket carrying NASA’s InSight Mars lander and two Mars Cube One (MarCO) miniature spacecraft known as cubesats. The pre-dawn launch from Vandenberg Air Force Base Space Launch Complex 3E in Lompoc, California was declared a success. This was the very first deep space launch from the west coast of the United States, and aimed to send a lander to the surface of the planet Mars to study its interior.

Launched alongside InSight were two MarCO cubesats, the first to be sent beyond Earth, nicknamed ‘WALL-E’ and ‘Eve’ after the protagonists of the 2008 animated science fiction film WALL-E. They were designed as a dual telecommunications relay for InSight during the spacecraft’s descent through the Martian atmosphere.

Traditionally, NASA launched interplanetary spacecraft at Cape Canaveral Air Force Station in Florida on the United States’ east coast. There, rockets were sent eastward over the Atlantic Ocean, borrowing the Earth’s rotational velocity to shoot their payloads out into the solar system. Due to congestion on the launch calendar at Canaveral, NASA chose to launch the spacecraft from from Vandenberg Air Force Base on the country’s west coast instead. A launch eastward from Vandenberg would have been dangerous due to densely populated areas being located downrange. Instead, rockets launched from Vandenberg were sent in a south-southeast trajectory. For Insight and MarCO, the spacecraft was placed in a temporary polar orbit after the launch, with the pair being shot towards Mars during a escape burn performed over the North Pole.

Despite a heavy fog settling in at the rocket’s launch pad in Lompoc, the United Launch Alliance declared a “100% chance of favorable weather for liftoff”. Spectators in Lompoc were treated to a mostly obscured view of the launch, though they were witness nonetheless to the sound and shock waves of the Atlas V’s Common Core first stage as it lifted the spacecraft off the ground on-schedule at 4:05 PDT (1105 UTC). People along the coast of southern California and northern Baja California, however, were in clear view of the Atlas V’s main engine burn and the first burn of the rocket’s Centaur upper stage. People in Orange County, California were treated to the sight of InSight and the Centaur almost eclipsing the planet Jupiter in the night sky.

The recently-inaugurated Administrator of NASA, Jim Bridenstine, congratulated the InSight team in an address televised live on NASA TV after the launch, along with the United Launch Alliance on what was their 128th successful launch in a row. The InSight mission part of NASA’s Discovery program, a class of low-cost solar system exploration missions. It was selected to launch in the program after beating the Comet Hopper and Titan Mare Explorer proposals amongst responses to a 2010 request.

Both InSight and the MarCO cubesats are en route to Mars. InSight carries eight scientific instruments, including a seismometer known as Seismic Experiment for Interior Structure (SEIS). The SEIS instrument will be recording the very first seismic measurements of Mars, which scientists hope will shed light on the structure of Mars beneath its surface. The lander was equipped with two cameras, based on the architecture of the Mars Exploration Rover’s navigation camera and hazard avoidance camera, to allow mission scientists to monitor the activity of the instruments. NASA scheduled a November 26 landing for InSight on a broad plain in the planet’s northern hemisphere, known as Elysium Planitia.

Monday, August 26, 2013

German weekly publication Der Spiegel yesterday accused the United States’ National Security Agency (NSA) of spying on the United Nations headquarters in New York. The magazine claims to have access to official NSA documents, provided by former NSA and CIA computer specialist and current fugitive Edward Snowden.

If the allegations of bugging are confirmed, it would mean that the United States has breached International Treaties including the 1946 Convention on the Privileges and Immunities of the United Nations. The Treaty states that countries must not carry out covert operations that relate to the UN’s activities.

“The property and assets of the United Nations, wherever located and by whomsoever held, shall be immune from search, requisition, confiscation, expropriation and any other form of interference, whether by executive, administrative, judicial or legislative action”, the Convention stipulates.

The documents analysed by Der Spiegel indicate that the NSA runs bugging programs in more than 80 embassies and consulates across the globe, in what is reportedly called the “Special Collection Service”.

Der Spiegel claimed that, according to their intelligence, the NSA was able to bug the UN headquarters by hacking into its video conferencing system in the summer of 2012. Their article included quotes from the leaked documents like ““The data traffic gives us internal video teleconferences of the United Nations (yay!)”.

Allegedly, decoded UN communications rose from 12 to 458 within three weeks of the NSA gaining access. Analysed documents also indicated the NSA found evidence Chinese spies were also monitoring the UN, and began logging what the Chinese were accessing.

The UN’s nuclear watchdog in Vienna, the International Atomic Energy Agency, and the European Union are said to be among the organisations NSA spies have been targeting. The US government has previously denied any wrongdoing by the NSA, although President Barack Obama this month announced plans to curb government spying activities.

Wednesday, January 9, 2019

Planetary scientist Vlada Stamenkovi? of the NASA Jet Propulsion Laboratory and colleagues have developed a new chemical model of how oxygen dissolves in Martian conditions, which raises the possibility of oxygen-rich brines; enough, the work suggests, to support simple animals such as sponges. The model was published in Nature on October 22. Wikinews caught up with him in an email interview to find out more about his team’s research and their plans for the future.

The atmosphere of Mars is far too thin for humans to breathe or for lungs like ours to extract any oxygen at all. It has on average only around 0.6% of the pressure of Earth’s atmosphere, and this is mainly carbon dioxide; only 0.145% of the thin Martian atmosphere is oxygen. The new model indicated these minute traces of oxygen should be able to enter salty seeps of water on or near the planet’s surface at levels high enough to support life forms comparable to Earth’s microbes, possibly even simple sponges. Some life forms can survive without oxygen, but oxygen permits more energy-intensive metabolism. Almost all complex multicellular life on Earth depends on oxygen.

“We were absolutely flabbergasted […] I went back to recalculate everything like five different times to make sure it’s a real thing,” Stamenkovi? told National Geographic.

“Our work is calling for a complete revision for how we think about the potential for life on Mars, and the work oxygen can do,” he told Scientific American, “implying that if life ever existed on Mars it might have been breathing oxygen”.

Stamenkovi? et al cite research from 2014 showing some simple sponges can survive with only 0.002 moles of oxygen per cubic meter (0.064 mg per liter). Some microbes that need oxygen can survive with as little as a millionth of a mole per cubic meter (0.000032 mg per liter). In their model, they found there can be enough oxygen for microbes throughout Mars, and enough for simple sponges in oases near the poles.

In 2014, also suggesting multicellular life could exist on Mars, de Vera et al, using the facilities at the German Aerospace Center (DLR), studied some lichens, including Pleopsidium chlorophanum, which can grow high up in Antarctic mountain ranges. They showed those lichens can also survive and even grow in Mars simulation chambers. The lichens can do this because their algal component is able to produce the oxygen needed by the fungal component. Stamenkovi? et al’s research provides a way for oxygen to get into the Martian brines without algae or photosynthesis.

Stamenkovi? et al found oxygen levels throughout Mars would be high enough for the least demanding aerobic (oxygen-using) microbes, for all the brines they considered, and all the methods of calculation. They published a detailed map^[3] of the distributions of solubility for calcium perchlorates for their more optimistic calculations, which they reckoned were closer to the true case, with and without supercooling. The lowest concentrations were shown in the tropical southern uplands. Brine in regions poleward of about 67.5° to the north and about 72.5° to the south could have oxygen concentrations high enough for simple sponges. Closer to the poles, concentrations could go higher, approaching levels typical of sea water on Earth, 0.2 moles per cubic meter (6.4 mg per liter), for calcium perchlorates. On Earth, worms and clams that live in the muddy sea beds require 1 mg per liter, bottom feeders such as crabs and oysters 3 mg per liter, and spawning migratory fish 6 mg per liter, all within 0.2 moles per cubic meter, 6.4 mg per liter.

((Wikinews)) Does your paper’s value of up to 0.2 moles of oxygen per cubic meter, the same as Earth’s sea water, mean that there could potentially be life on Mars as active as our sea worms or even fish?

Stamenkovi?: Mars is such a different place than the Earth and we still need to do so much more work before we can even start to speculate.

Stamenkovi? et al studied magnesium and calcium perchlorates, common on Mars. They found the highest oxygen concentrations occur when the water is colder, which happens most in polar regions.

((WN)) The temperatures for the highest levels of oxygen are really low, -133 °C, so, is the idea that this oxygen would be retained when the brines warm up to more habitable temperatures during the day or seasonally? Or would the oxygen be lost as it warms up? Or — is the idea that it has to be some exotic biochemistry that works only at ultra low temperatures like Dirk Schulze-Makuch’s life based on hydrogen peroxide and perchlorates internal to the cells as antifreeze?

Stamenkovi?: The options are both: first, cool oxygen-rich environments do not need to be habitats. They could be reservoirs packed with a necessary nutrient that can be accessed from a deeper and warmer region. Second, the major reason for limiting life at low temperature is ice nucleation, which would not occur in the type of brines that we study.

Stamenkovi? et al’s paper is theoretical and is based on a simplified general circulation model of the Mars atmosphere — it ignores distinctions of seasons and the day / night cycle. Stamenkovi?’s team combined it with a chemical model of how oxygen would dissolve in the brines and used this to predict oxygen levels in such brines at various locations on Mars.

When asked about plans for a future model that might include seasonal timescales, Stamenkovi? told Wikinews, “Yes, we are now exploring the kinetics part and want to see what happens on shorter timescales.”

Stamenkovi? et al’s model also takes account of the tilt of the Mars axis, which varies much more than Earth’s does.

Wikinews asked Stamenkovi? if he had any ideas about whether and how sponges could survive through times when the tilt was higher and less oxygen would be available:

((WN)) I notice from your figure^[4] that there is enough oxygen for sponges only at tilts of about 45 degrees or less. Do you have any thoughts about how sponges could survive periods of time in the distant past when the Mars axial tilt exceeds 45 degrees, for instance, might there be subsurface oxygen-rich oases in caves that recolonize the surface? Also what is the exact figure for the tilt at which oxygen levels sufficient for sponges become possible? (It looks like about 45 degrees from the figure but the paper doesn’t seem to give a figure for this.)

Stamenkovi?: 45 deg is approx. the correct degree. We were also tempted to speculate about this temporal driver but realized that we still know so little about the potential for life on Mars/principles of life that anything related to this question would be pure speculation, unfortunately.

((WN)) How quickly would the oxygen get into the brines — did you investigate the timescale?

Stamenkovi?: No, we did not yet study the dynamics. We first needed to show that the potential is there. We are now studying the timescales and processes.

((WN)) Could the brines that Nilton Renno and his teams simulated, forming on salt/ice interfaces within minutes in Mars simulation conditions, get oxygenated in the process of formation? If not, how long would it take for them to get oxygenated to levels sufficient for aerobic microbes? For instance could the Phoenix leg droplets have taken up enough oxygen for aerobic respiration by microbes?

Stamenkovi?: Just like the answer above. Dynamics is still to be explored. (But this is a really good question ?).

Wikinews also asked Stamenkovi? how their research is linked to the recent discovery of possible large subglacial lake below the Martian South Pole found through radar mapping.

((WN)) Some news stories coupled your research with the subglacial lakes announcement earlier this year. Could the oxygen get through ice into layers of brines such as the possible subglacial lakes at a depth of 1.5 km?

Stamenkovi?: There are other ways to create oxygen. Radiolysis of water molecules into hydrogen and oxygen can liberate oxygen in the deep and that O₂ could be dissolved in deep groundwater. The radiolytic power for this would come from radionuclides naturally contained in rocks, something we observe in diverse regions on Earth.

((WN)) And I’d also like to know about your experiment you want to send to Mars to help with the search for these oxygenated brines.

Stamenkovi?: We are now developing at “NASA/JPL-California Institute of Technology” a small tool, called TH2OR (Transmissive H2O Reconnaissance) that might one day fly with a yet-to-be-determined mission. It will use low frequency sounding techniques, capable of detecting groundwater at depths down to ideally a few km under the Martian surface, thanks to the high electric conductivity of only slightly salty water and Faraday’s law of induction. Most likely, such a small and affordable instrument could be placed stationary on the planet’s surface or be carried passively or actively on mobile surface assets; TH2OR might be also used in combination with existing orbiting assets to increase its sounding depth. Next to determining the depth of groundwater, we should also be able to estimate its salinity and indirectly its potential chemistry, which is critical information for astrobiology and ISRU (in situ resource utilization).

((WN)) Does your TH2OR use TDEM like the Mars 94 mission — and will it use natural ULF sources such as solar wind, diurnal variations in ionosphere heating and lightning?

Stamenkovi?: The physical principle it uses is the same and this has been used for groundwater detection on the Earth for many decades; it’s Faraday’s law of induction in media that are electrically conducting (as slightly saline water is).

Stamenkovi?: However, we will focus on creating our own signal as we do not know whether the EM fields needed for such measurements exist on Mars. However, we will also account for the possibility of already existing fields.

Wednesday, October 19, 2011

In solidarity with the Occupy Wall Street and other “Occupy” protests, activists set up camp outside St Paul’s Cathedral in London on Saturday, and they plan to remain indefinitely. The protest thus far has been described as “largely peaceful” by a police spokesman.

On Saturday, an estimated thousand or more people attempted to protest in Paternoster Square, the site of the London Stock Exchange, but were blocked by police enforcing a High Court judgment. Julian Assange from Wikileaks also joined the protest to address the activists. A flag flies over the occupation showing the ‘Anonymous’ logo of a headless man in a black suit.

At around 9:30am Wednesday, many campers were still asleep, but around 30–50 people were listening in solidarity to trade union representatives from the National Shop Stewards Network, while 20 to 30 officers from the City of London police watched on. On the steps of St. Paul’s Cathedral, the speakers spoke about a variety of struggles including strikes by electricians that started in August against Balfour Beatty, one of Britain’s largest construction firms. Solidarity was expressed with the travellers at Dale Farm, and speakers described how the media and others were trying to “divide” workers, students and elderly people. One of the speakers said that while today they are occupying the square in London, “tomorrow we will be occupying universities and colleges” and spoke of the suspension of Vik Chechi, the Unison branch secretary who has been suspended by Queen Mary University. By 9:45am, the trade union talks had finished and the sound system was reactivated and reggae music started playing.

After the talks peter out, activity begins to resume on the site: people sorting out tents and serving food, under signs and banners playfully mixing politics (“The London Stock Exchange: Britain’s Biggest Casino”) with Internet memes (a Reddit cartoon man depicted saying “Y U NO JOIN US?”).