Author: Admin

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.

Sunday, October 21, 2007

Torture proliferates American headlines today: whether its use is defensible in certain contexts and the morality of the practice. Wikinews reporter David Shankbone was curious about torture in American popular culture. This is the first of a two part series examining the BDSM business. This interview focuses on the owners of a dungeon, what they charge, what the clients are like and how they handle their needs.

When Shankbone rings the bell of “HC & Co.” he has no idea what to expect. A BDSM (Bondage Discipline Sadism Masochism) dungeon is a legal enterprise in New York City, and there are more than a few businesses that cater to a clientèle that wants an enema, a spanking, to be dressed like a baby or to wear women’s clothing. Shankbone went to find out what these businesses are like, who runs them, who works at them, and who frequents them. He spent three hours one night in what is considered one of the more upscale establishments in Manhattan, Rebecca’s Hidden Chamber, where according to The Village Voice, “you can take your girlfriend or wife, and have them treated with respect—unless they hope to be treated with something other than respect!”

When Shankbone arrived on the sixth floor of a midtown office building, the elevator opened up to a hallway where a smiling Rebecca greeted him. She is a beautiful forty-ish Long Island mother of three who is dressed in smart black pants and a black turtleneck that reaches up to her blond-streaked hair pulled back in a bushy ponytail. “Are you David Shankbone? We’re so excited to meet you!” she says, and leads him down the hall to a living room area with a sofa, a television playing an action-thriller, an open supply cabinet stocked with enema kits, and her husband Bill sitting at the computer trying to find where the re-release of Blade Runner is playing at the local theater. “I don’t like that movie,” says Rebecca.

Perhaps the most poignant moment came at the end of the night when Shankbone was waiting to be escorted out (to avoid running into a client). Rebecca came into the room and sat on the sofa. “You know, a lot of people out there would like to see me burn for what I do,” she says. Rebecca is a woman who has faced challenges in her life, and dealt with them the best she could given her circumstances. She sees herself as providing a service to people who have needs, no matter how debauched the outside world deems them. They sat talking mutual challenges they have faced and politics (she’s supporting Hillary); Rebecca reflected upon the irony that many of the people who supported the torture at Abu Ghraib would want her closed down. It was in this conversation that Shankbone saw that humanity can be found anywhere, including in places that appear on the surface to cater to the inhumanity some people in our society feel towards themselves, or others.

“The best way to describe it,” says Bill, “is if you had a kink, and you had a wife and you had two kids, and every time you had sex with your wife it just didn’t hit the nail on the head. What would you do about it? How would you handle it? You might go through life feeling unfulfilled. Or you might say, ‘No, my kink is I really need to dress in women’s clothing.’ We’re that outlet. We’re not the evil devil out here, plucking people off the street, keeping them chained up for days on end.”

Below is David Shankbone’s interview with Bill & Rebecca, owners of Rebecca’s Hidden Chamber, a BDSM dungeon.

Monday, November 28, 2005

SpaceX called off the much-delayed inaugural launch of their new Falcon 1 rocket on Saturday from Kwajalein’s Omelek Island launch site. The intent was to launch the U.S. Air Force Academy’s FalconSat 2 satellite, which will monitor plasma interactions with the Earth’s upper atmosphere and magnetosphere.

The launch was delayed, then finally cancelled after an oxygen boil-off vent had accidentally been left open. The oxygen was unable to cool the helium pressurant, which then proceeded to evaporate faster than it could be replenished. A main computer issue, probably serious enough to cause a scrub on its own, was also discovered.

This long-anticipated flight was originally expected to be launched in January 2005, however a series of setbacks forced a series of delays, with the flight most recently scheduled to be in early 2006. It was intended to be launched from the Kwajalein atoll in the middle of the Pacific Ocean.

The maiden voyage was originally intended to launch from Vandenberg Air Force Base in California with a Naval Research Laboratory satellite and a Space Services Incorporated space burial payload.

Tuesday, July 29, 2008

As gas prices have risen in the United States, the regional transport authority for southeastern Pennsylvania, SEPTA, has seen a sharp increase in ridership, which has caused overcrowding on the trains.

“As fuel prices have continued to rise, SEPTA ridership has steadily increased and is the highest in 18 years,” said SEPTA General Manager Joseph Casey. Monthly ridership was 22 percent higher last month than a year ago.

“They have crushed loads on their rail lines, already where people are standing, and there’s not enough seats,” said Rich Bickel, the director of the Delaware Valley Regional Planning Commission.

“At peak times some railcars are standing room only and commuter parking lots are nearly full. All Regional Rail lines are running near full capacity and the train station parking lots are at about 90 percent capacity or more,” SEPTA spokesperson Felipe Suarez said.

While SEPTA awaits new Silverliner V trains from Hyundai Rotem, which begin arriving in 2009, it had hoped to lease eight rail cars from New Jersey Transit, at an agreed-upon rate of US$10,000 per month. However, due to problems with insurance and liability indemnification, the deal fell through, according to Casey.

SEPTA has entered a new agreement to purchase the eight rail cars from NJ Transit. The transit authority will pay US$670,000 for the cars and assorted supplies plus one additional inoperative car which will be used for spare parts. The rail cars will be operated using a SEPTA provided locomotive as they are not self-propelled.

The cars are being disposed of by NJ Transit because it has switched from single-floor cars to double-decker cars.

SEPTA is expecting to raise US$3.1 million by selling rail that has been out of service since 1981 at auction.

Sunday, January 27, 2019

In findings published earlier this month in Ecological Applications, scientists from the University of Washington and Center for Ecosystem Sentinels examine the reason for the plummeting numbers of female Magellanic penguins, Spheniscus magellanicus, that have been reported at the birds’ breeding sites in South America over the past twenty years and more. Wikinews caught up with postdoctoral researcher and study co-author Natasha Gownaris to learn more.

In a press release, Gownaris said, “Two decades ago, there were about 1.5 adult male Magellanic penguins for every adult female at Punta Tombo[…] Today, it’s approaching three males for every female.” The findings suggested a disparity in the death rate of juvenile and adult penguins, rather than differences in chick survival, account for this difference.

Punta Tombo is one of the annual breeding sites for the species; it is in Argentina. The penguins travel thousands of miles each year to reach these sites.

The work involved building population models out of over thirty years of data collected by tagging individual penguins. Findings also suggested the pronounced sex disparity might make population models used to predict survival among other birds with a more even gender balance inappropriate for use on Megallanic penguins.

According to the data, since 1987, overall population of Magellanic penguins in Punta Tombo at one of their annual breeding sites in Argentina has declined 40%, while the male-to-female ratio has greatly increased.

Since 1983, the research team has been putting stainless steel bands on tens of thousands of chicks hatched at the Punta Tombo breeding site in Argentina, noting which juvenile and adult birds make it back to the site the next year and extrapolating how many lived and died. Among juveniles, there was a 17% survival rate for males and 12% for females. Among adults, it was 89% and 85%. These effects became compounded every year, reaching as high as six males to one female among older penguins.

The researchers noted implications for penguin conservation: Gownaris remarked, “Over the years, this team has helped preserve the land and waters around breeding colonies like Punta Tombo[…] But now we’re starting to understand that, to help Magellanic penguins, you have to protect waters where they feed in winter, which are thousands of miles north from Punta Tombo.”

Gownaris answered a series of questions for our correspondent.

((Wikinews)) What prompted your curiosity about Magellanic penguins?

Natasha Gownaris: I’ve wanted to be a marine scientist since I was a child, when I would collect sand crabs (Emerita talpoida) from local beaches in New York. I studied fish as a graduate student, but I have a pair of adopted parrots and I am generally fascinated by birds. Plus, penguins eat fish! Studying penguins seemed like a great way to merge my love for the ocean and my love for birds. Penguins and other seabirds are also important to study because they tell us something about the health of the ocean ecosystems they feed in, similar to the use of canaries to test air quality in coal mines. Unfortunately, the decline of many seabird species worldwide is yet another warning sign of the negative and widespread impacts humans are having on the ocean.

((WN)) How did you approach putting together such a large-scale study?

NG: This study started in 1982, long before my joining the lab in March of 2016. Dr. Dee Boersma began this study as a response to a Japanese company’s interest in harvesting penguins for their skin, meat, and oil. Although the project has evolved over time, Dr. Boersma had the foresight to start banding chicks in 1983 and to set up a standard protocol that we follow each year. Since then, over 44,000 chicks have been banded at Punta Tombo. We’ve been able to follow some individuals for 30+ years, collecting detailed information on things like how often they breed and how many mates they’ve had.

((WN)) How much time did you end up spending in Argentina? What was it like at the breeding site?

NG: Members of the Boersma lab and volunteers spend approximately six months each year at Punta Tombo. I was fortunate enough to spend nearly four months at the colony between 2015 and 2017. It’s an incredible, otherworldly place. Magellanic penguins nest in burrows or bushes, and some areas of the colony are so dense with burrows that you feel like you’re on a different planet. The colony has declined by over 40% since the study started…so I can’t even imagine what it was like in the 1980s. My favorite time of the day is around 8PM, when (hopefully fat) penguins are returning to the colony en masse after a foraging trip. They are also most vocal in the morning and evening, making their characteristic braying sound— the related African penguin earned the name “jackass penguin” because they sound a bit like donkeys. The colony is also full of other beautiful and interesting creatures, including a llama-like species called the guanaco and an ostrich-like species called the rhea.

((WN)) Do you have any theories on why more female juveniles die at sea? You mention starvation; what might be the causes of that, and are there other possible explanations you can think of?

NG: We are not yet certain why females are more likely to die, but we think it must be related to their smaller body size. Because the mortality is most uneven in juveniles, higher mortality doesn’t seem to be related to greater costs of breeding for females than for males. Female Magellanic penguins are about 17% lighter than males and have smaller bills. We think that, because of this size difference, females have a lower storage capacity, can’t dive as deep, and can’t take as wide a range of prey as males — all disadvantages when faced with limited and unpredictable food resources. These disadvantages hit juvenile females even harder, as juveniles are still learning how to forage and often travel further than adults do in the non-breeding season. Counts of carcasses in the species’ migration range support starvation as the main cause of female-biased mortality; while oiled carcasses have a sex ratio of 1:1, females outnumber males in carcasses of starved birds. The only other possibility is that females are moving to other colonies at higher rates than are males, but this species is known to almost always return to its natal colony to breed.

((WN)) You suggest conservation efforts should look at protection of feeding grounds. What sort of measures do you think might be beneficial?

NG: Because penguins migrate such long distances over the non-breeding season, a mixture of tools (including no-take marine protected areas and traditional fisheries management tools, like catch limits) is likely to be needed. Although there is currently some spatial protection surrounding the species’ breeding colony, this protection does not extend to their migratory route. And, of course, everyone can contribute to penguin conservation by reducing their plastic waste, making more sustainable food choices, and reducing their carbon footprint.

((WN)) What do you think might be causing pressure on food sources for the penguins?

NG: The two main threats to the food sources of this colony are climate change, which cause shifts in primary productivity and fish stocks, and fisheries. Fisheries compete with penguins for fish species such as hake and anchovy.

((WN)) Have you noticed differences in behavior among the penguins as the ratios become increasingly skewed?

NG: In a separate study currently under review, we have shown that aggression between males of Magellanic penguins is higher when the sex ratio at the colony is more skewed towards males. We also showed that nearly all females at the colony breed but that, over time, fewer and fewer males find mates. Single male penguins sometimes intrude [on] nests of mated pairs and interrupt the incubation of eggs or feeding of chicks, leading to mortality. In some cases, they will even attack and kill chicks.

((WN)) Your release mentioned sexing the penguins was problematic; how did you achieve it with confidence?

NG: We have some methods of sexing penguins that we feel confident about — using genetics or measures of cloaca size around egg laying, for example. However, these methods are time intensive, so we have also developed visual cues for sex penguins (bill size, behavior, forehead shape). We looked at individuals that had been sexed using both a certain method (e.g. genetics) and visual methods to calculate how often we got it right based on visual cues alone and found that we have very high accuracy. We also used statistical tools to help to deal with uncertainty in the sex of some individuals.

((WN)) How well can you extrapolate population trends at Punta Tombo based on the birds you tagged? More broadly, how well do you think this work represents global populations?

NG: It is likely that females have higher mortality than males at other colonies of this species and in other penguin species. We unfortunately do not have enough information from other colonies of this species (e.g. sex ratio and population trends) for an accurate global assessment of population trends. We do know that some colonies of the species are growing but that, at the global level, the species is still in decline.

((WN)) In your opinion, for how much longer are penguin populations sustainable without intervention?

NG: This is nearly impossible to answer without more information on other colonies of the species, but the Punta Tombo colony is declining rapidly. We estimate declines of at least 43% since 1987 from our annual surveys at the colony, but it is likely that actual declines are higher because of the increasingly skewed sex ratio.

((WN)) What are your next plans moving forward with your work?

NG: We are currently studying the sex ratio in Magellanic penguin chicks (at hatching and at fledging) to determine how this influences the sex ratio in adults. There are two priorities moving forward — 1) estimating sex ratio at other colonies of this species and determining whether females are more likely to leave Punta Tombo for other colonies than are males and 2) determining the mechanisms underlying lower female survival, e.g. by studying the foraging behavior and diet of males and females and the individual characteristics (like body size) that correlate with survival.

Friday, December 12, 2008

Top broker and Wall Street adviser Bernard L. Madoff, aged 70, was arrested and charged by the FBI on Thursday with a single count of securities fraud, also known as stock fraud and investment fraud. He allegedly told senior employees of his firm on Wednesday that his $50 billion business “is all just one big lie” and that it was “basically, a giant Ponzi scheme (since at least 2005).” Mr. Madoff faces up to 20 years imprisonment and a fine of up to $5 million. FBI agent Theodore Cacioppi said Mr. Madoff’s investment advisory business had “deceived investors by operating a securities business in which he traded and lost investor money, and then paid certain investors purported returns on investment with the principal received from other, different investors, which resulted in investors’ losses of approximately $50 billion dollars.”

The former chairman of the Nasdaq Stock Market is also the founder and primary owner of Bernard L. Madoff Investment Securities LLC, the closely-held market-making firm he launched in 1960. The firm is one of the top market maker firms on Wall Street. He founded his family firm with an initial investment of $5,000, after attending Hofstra University Law School. He saved the money earned from a job lifeguarding at Rockaway Beach in Queens and a part time job installing underground sprinkler systems.

A force in Wall Street trading for nearly 50 years, he has been active in the National Association of Securities Dealers (NASD), a self-regulatory organization for the U.S. securities industry. His firm was one of the five most active firms in the development of the NASDAQ, having been known for “paying for order flow,” in other word paying a broker to execute a customer’s order through Madoff. He argued that the payment to the broker did not alter the price that the customer received. He ran the investment advisory as a secretive business, however.

Dan Horwitz, counsel of Mr. Madoff, in an interview, said that “he is a longstanding leader in the financial-services industry with an unblemished record; he is a person of integrity; he intends to fight to get through this unfortunate event.” Mr. Madoff was released on his own recognizance on the same day of his arrest, after his 2 sons turned him in, and posting $10 million bail secured by his Manhattan apartment. Without entering any plea, the Court set the preliminary hearing for January 12.

Madoff’s hedge fund scheme may rank among the biggest fraud in history. When former energy trading giant Enron filed for bankruptcy in 2001, one of the largest at the time, it had $63.4 billion in assets. The scheme would dwarf past Ponzis, and it would further be nearly five times the telecommunication company WorldCom fraud and bankruptcy proceedings in 2002.

The Securities and Exchange Commission filed a separate civil suit on Thursday against Bernard L. Madoff Investment Securities and its eponymous founder Mr. Madoff. It was docketed as “U.S. v. Madoff,” 08-MAG-02735, by the U.S. District Court for the Southern District of New York (Manhattan). SEC, New York associate director of enforcement, Andrew M. Calamari, asked the judge to issue seizure orders on the firm and its assets, and appoint a receiver. The SEC pleads, among others, that “it was an ongoing $50 billion swindle; our complaint alleges a stunning fraud that appears to be of epic proportions.” It further accused the defendant of “paying returns to certain investors out of the principal received from other, different investors” for years. Madoff’s hedge fund business had previously claimed to have served between 11 and 25 clients and had $17.1 billion in assets under management. But virtually all of the assets were missing.

United States District Court for the Southern District of New York Louis L. Stanton on Thursday appointed Lee Richards, a Manhattan lawyer, as the firm’s receiver. A hearing is set for Friday, for a ruling on the SEC’s petition to grant plenary powers to the receiver over the entire firm, and an absolute asset sequestration.

Doug Kass, president of hedge fund Seabreeze Partners Management said that “this is a major blow to confidence that is already shattered — anyone on the fence will probably try to take their money out.”

Monday, July 5, 2021

On Friday, a ransomware attack which initially targeted software company Kaseya spread to over 200 companies in the US through Kaseya’s network management software. Huntress Labs, a cybersecurity company, alleged the attack was carried out by REvil, a Russia-based ransomware group. Kaseya told its customers to stop using its services when it learned of the attack.

According to NBC News, the ransomware first spread to about 40 of Kaseya’s customers, which are mainly companies that manage Internet services for their customers, some of which manage them for thousands of companies. John Hammond, a security researcher at Huntress Labs, said that “It’s reasonable to think this could potentially be impacting thousands of small businesses”. Kaseya notified its customers of the attack on Friday afternoon and warned them to stop using its services immediately.

Business Insider reported REvil is a Russian-based organization which provides ransomware-as-a-service. BleepingComputer reported receiving a sample of the ransomware used in REvil’s attacks and says that they demand USD five million for the ransomed files to be decrypted, though it is unknown if every victim received a demand for that same amount. Fabian Wosar, Chief Technical Offier (CTO) at the Emsisoft security firm, said affected customers had received demands for USD 44,999.

Swedish grocery chain Coop was also affected by the attack, and had to close all 800 of its stores because its checkout tills could not process payments due to the ransomware. Speaking to Swedish Television, Therese Knapp, a Coop spokesperson, said “We have been troubleshooting and restoring all night, but have communicated that we will need to keep the stores closed today”. Swedish company Visma Esscom, which manages servers for businesses, was using Kaseya software, according to Reuters. Railway services in Sweden were also disrupted.

On Saturday, US President Joe Biden directed intelligence agencies to investigate who was behind the attack. He said that “we’re not certain” who is behind the attack, adding “[t]he initial thinking was it was not the Russian government but we’re not sure yet”. The US Cybersecurity and Infrastructure Security Agency stated that it is “taking action to understand and address the recent supply-chain ransomware attack”.

Monday, November 27, 2006

Michael Chong, Minister of Intergovernmental Affairs, Minister of Sport, and MP for the riding of Wellington—Halton Hills, has resigned over Stephen Harper’s Quebec motion. The motion asks MPs if Quebec is a nation “within a united Canada”.

Chong opposed the vote saying that it was akin to ethnic nationalism, which he opposes.

“It is nothing else but the recognition of ethnic nationalism, and that is something I cannot support. It cannot be interpreted as the recognition of a territorial nationalism, or it does not refer to the geographic entity, but to a group of people,” Chong said.

“I am resigning as minister so I can abstain from the vote tonight,” Chong said at a news conference in Ottawa, the nations capital. “While I am loyal to my party and to my leader, my first loyalty is to my country. I believe in one nation undivided called Canada.”

Chong remains a Conservative member of Parliament. Later in the day, Prime Minister Stephen Harper appointed York—Simcoe, Ontario MP Peter Van Loan to the position vacated by Chong.

Harper asked Liberal race contender Stéphane Dion for guidance with the Quebec motion instead of asking the now former Intergovernmental Affairs Minister, Michael Chong.

Michael Ignatieff, the front-runner in the Liberal leadership race, has proposed a similar motion. Liberal leadership candidate, Gerard Kennedy, said he opposes the motion and finds it divisive to national unity and could advance the separatist agenda.

The vote will be held tonight in the House of Commons.