wired2tech.com

Sunday, June 4, 2017

In an analysis published on Friday in Science, scientists announced data collected from the Curiosity Rover show that Mars’s Gale Crater was once a chemically stratified lake, meaning the aquatic environment differed markedly between deep and shallow water. According to the report, “all of the physical, chemical, and energetic conditions necessary to establish a habitable environment were present on Mars between ~3.8 billion and 3.1 billion years ago.”

Analysis shows the chemical index of alteration fluctuated over time in a way that suggested the lake varied between hot, wet periods and colder, drier periods. The shallow water would have been rich in oxidants brought in from the atmosphere and groundwater, and the deeper water would have been oxidant poor. Phosphates, carbon, nitrogen, iron and sulfur, indicating chemistry suitable for life, have also been found there in a variety of compounds.

Lead author Joel Hurowitz of Stony Brook University explained, “These were very different, co-existing environments in the same lake[…] This type of oxidant stratification is a common feature of lakes on Earth, and now we’ve found it on Mars. The diversity of environments in this Martian lake would have provided multiple opportunities for different types of microbes to survive.”

The scientists also evaluated the fineness of the sediment, meaning the sizes of individual particles of dirt, dust and sand. Curiosity found larger grains near the edges of the lake where sediments from incoming rivers and streams would have fed it, and smaller ones in what would have been the deep lakebed, which is consistent with particles dropping out of the water as the current slows down. “We could tell something was going on,” Hurowitz said in a statement. “What was causing iron minerals to be one flavor in one part of the lake and another flavor in another part of the lake? We had an ‘Aha!’ moment when we realized that the mineral information and the bedding-thickness information mapped perfectly onto each other in a way you would expect from a stratified lake with a chemical boundary between shallow water and deeper water.”

Tuesday, January 24, 2006

January’s second Interview of the Month was with Danny O’Brien of the Electronic Frontier Foundation (EFF) on 23 January in IRC.

The EFF is coming off a series of high-profile successes in their campaigns to educate the public, press, and policy makers regarding online rights in a digital world, and defending those rights in the legislature and the courtroom. Their settlement with Sony/BMG, the amazingly confused MGM v Grokster decision by the Supreme Court of the United States, and the disturbing cases surrounding Diebold have earned the advocacy organization considerable attention.

When asked if the EFF would be interested in a live interview in IRC by Wikinews, the answer was a nearly immediate yes, but just a little after Ricardo Lobo. With two such interesting interview candidates agreeing so quickly, it was hard to say no to either so schedules were juggled to have both. By chance, the timing worked out to have the EFF interview the day before the U.S. Senate schedule hearings concerning the Broadcast flag rule of the FCC, a form of digital rights management which the recording and movie industries have been lobbying hard for – and the EFF has been lobbying hard to prevent.

Monday, April 25, 2005

Australians and New Zealanders throughout the world stood still for their national war memorial days in remembrance of the failed Australian and New Zealand Army Corps — ANZAC — attack on Gallipoli, Turkey that began on 25 April 1915. The fateful attack was designed to end the First World War more quickly by creating a supply line to Russia. A hundred-thousand died in the battle, remembered every year as ANZAC Day by both nations.

The British-directed battle of Gallipoli is often seen as the defining moment in the ‘birth’ of Australia and New Zealand. With New Zealand Prime Minister Helen Clark saying “For New Zealand as for Australia it was at Gallipoli that our young nations came of age.” [1]. This being the 90th anniversary of the attack, Clark, Australian Prime Minister John Howard and Britain’s Prince Charles are all at Gallipoli to remember that fateful campaign.

Some controversy has been created about Australian Prime Minister John Howard not attending the New Zealand ceremony at Chunuk Bair on the Gallipoli Peninsula. This has upset many people as it is a break in a tradition that the Prime Ministers attend the ceremonies of both countries.

Thursday, December 25, 2008

The US Food and Drug Administration has written a warning letter to The Coca-Cola Company that Diet Coke Plus violates the Federal Food, Drug, and Cosmetic Act‘s guidelines. The December 10 letter, signed by Roberta Wagner, director of the office of compliance at the Center of Food Safety and Applied Nutrition, says Coca-Cola should “take prompt action to correct these violations.”

The product’s label describes the drink as “Diet Coke with Vitamins and Minerals.” FDA said the soft drink does not have enough nutrients to justify the use of the word “plus” in its trade name. According to statute, foods must contain at least 10 per cent more of the Reference Daily Intake (RDI) or Daily Reference Value (DRV) for a given nutrient “than an appropriate reference food” in order to be called “plus” legally.

The FDA also advised “it is inappropriate to add extra nutrients to snack foods such as carbonated beverages.” The FDA warns Coca-Cola and asks it to revise the drink’s labeling and inform the agency of its reply regarding how it plans to fix the violation, within 15 days of receiving the warning. Coca-Cola says it will submit a reply to the FDA in early January, but currently has no plans to alter the label.

The US Federal Food, Drug, and Cosmetic Act (FFDCA, FDCA, or FD&C), is a set of laws passed by Congress in 1938 giving authority to the Food and Drug Administration (FDA) to oversee the safety of food, drugs, and cosmetics. A principal author of this law was Royal S. Copeland, a three-term U.S. Senator from New York, whose concerns about drug safety stemmed from the fact that he was also a homeopathic physician. The act has been amended many times, most recently to add requirements about bioterrorism preparations.

The Coca-Cola Company issued a statement saying, “This does not involve any health or safety issues, and we believe the label on Diet Coke Plus complies with FDA’s policies and regulations.”

The Coca-Cola Company is the world’s largest beverage company, largest manufacturer, distributor and marketer of non-alcoholic beverage concentrates and syrups in the world, and one of the largest corporations in the United States. The company is best known for its flagship product Coca-Cola, invented by pharmacist John Stith Pemberton in 1886. Diet Coke Plus (also known as Coca Cola Light Plus) was released in the United Kingdom in October 2007.

Forbes has reported that “Coca-Cola has been on a crusade to revamp its image from a purveyor of highly sweetened, fattening products to a more family-friendly image of low-calorie, nutritional drinks. Its violation of the Federal Food, Drug and Cosmetic Act could mean hefty fines and a seizure of product from the pop king, but often these sorts of issues are resolved without incident.”

Tuesday, January 11, 2011

Data from recent detailed analyses of samples collected on NASA Apollo moon missions, released Sunday, show that Lunar water may originate from comets that collided with the moon early in its geologic history.

A team of astrophysicists led by James Greenwood of Wesleyan University in Connecticut analyzed samples collected on the Apollo 11, 12, 14, and 17 missions and found that the chemical properties of traces of lunar water in these samples differ from water typical of Earth.

“The values of deuterium/hydrogen (D/H) that we measure in apatite in the Apollo rock samples”, Greenwood told Space.com, “is clearly distinguishable from water from the Earth, mitigating against this being some sort of contamination on Earth.” Greenwood and his team of researchers studied in particular the variations of hydrogen in the mineral apatite.

The newfound data show that the chemical properties of water in the apatite samples resemble data from the comets Hale-Bopp, Halley, and Hyakutake, suggesting that the water present on the moon could have originated from these comets or others.

According to Greenwood, the results of this study could also provide evidence as to the origin of water on Earth.

Wednesday, July 27, 2016

Yesterday, Italian football club Juventus F.C. announced signing of Argentine striker Gonzalo Higuaín from their rival club S.S.C. Napoli. 28-year-old Higuaín signed a five-year contract with the Old Lady for an Italian record transfer fee of €90 million.

Debuting at the age of 17 in 2005, Higuaín has made 329 league appearances and scored 191 goals. He joined Spanish capital club Real Madrid in 2006. Spending six-and-half seasons with Los Blancos, Higuaín has won the La Liga title there.

Higuaín — nicknamed Pipita — joined Napoli in 2013. While there he broke the goal scoring record set by Gunnar Nordahl of the Italian Serie A, netting 36 goals in 35 appearances. He helped Napoli qualify for the UEFA Champions League as the club finished second in the league.

In remarks to Gazetta World following Higuaín’s agreement to the contract, AS Roma captain Francesco Totti said, “Footballers today are a bit like nomads[…] They follow money and not their hearts.” 40-year-old Totti has played 25 years for Roma, signing a one-year contract extention last month.

Napoli’s president Aurelio De Laurentiis said, “Some believe that talking of a betrayal is an exaggeration, but I think differently. In this move there is the full meaning of a betrayal, which includes ingratitude.” ^{((it))Italian language: ?C’è chi dice che parlare di tradimento sia esagerato, e invece io penso il contrario, perché in questa scelta c’è il senso pieno del tradimento, che comprende anche l’ingratitudine}

Former Agrentine captain and Napoli legend Diego Maradona said, “This Higuain affair is hurting me because he is going to a direct rival like Juventus. But we cannot blame the player either. A player has a responsibility to himself and it is those fat cats of business that are grinning the most in this case. Nobody thinks of the fan.” ^{((es))Spanish language: ?Me duele lo de Higuaín, porque va a un rival directo, como la Juventus. Pero tampoco se le puede echar la culpa al jugador. Porque el jugador tiene su responsabilidad, pero los que hacen el negocio son los más felices. Nadie piensa en el hincha.}

Higuaín has been assigned the number 9 jersey.

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.