Atmospheric distribution of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs), and non-ortho biphyenyls (PCBs) along a north – south Atlantic transect

first_imgAir samples were taken on board the RRS Bransfield (typically for 24−72 h), during an Atlantic cruise from the U.K. to Antarctica in October−December 1998, to investigate the global scale distribution of PCDD/Fs and coplanar PCBs. Highest concentrations of Cl2-8DD/Fs all occurred between 25 and 52 °N; lowest concentrations were measured around 60 °S and further south. Cl3DFs showed highest overall concentrations (up to 9800 fg/m3), followed by Cl2DFs (up to 5300 fg/m3) and OCDD (up to 1300 fg/m3). Lowest concentrations, measured in the remote Southern hemisphere, were generally 2 orders of magnitude lower than their highest concentrations over the North Atlantic. Concentrations of PCB-77 were higher in the northern hemisphere, while PCB-126 and PCB-169 exhibited highest concentrations around the equator. Evidence was obtained for substantial emissions of PCDD/Fs off west Africa and while in the port of Montevideo, Uruguay. Shifts in PCDD/F profile distribution were observed on increasing distance from source regions, such that those from the most remote locations were dominated by Cl3DF (40% of the total) and OCDD (20%). Gas-particle partition data was obtained for all samples. Cl4-6DD/Fs showed the widest range, varying between 10 and 90% of the total in the gas phase, depending on location/temperature. The study gave limited evidence for the influence of OH-radical initiated depletion reactions of gaseous PCDD/Fs. The global atmospheric burden is estimated to be on the order of 350 kg ΣCl4-8DD/Fs and 3 kg ΣTEQ.last_img read more

Iapetus Cracked Like a Nut

first_imgSaturn has a moon named for the two-faced Roman god Janus, but the real two-faced moon is the larger Iapetus.  Since Jean Dominique Cassini discovered the moon in 1671 and noticed its varying brightness, scientists have been mystified by its two hemispheres, one as black as coal, the other white as snow.  Investigators were sure they would figure it out when Voyager 2 flew by in 1981.  They didn’t.  Investigators were hopeful they would figure it out when Cassini flew by less than two weeks ago on December 31, 2004.  They didn’t.  In fact, they were thrown another curve: a ridge that wraps around the equator that gives the moon the appearance of a cracked walnut (see imaging team picture and caption).  This is no ordinary crack; the ridgeline forms a mountain range 800 miles long and 13 miles high in places – three times the height of Mt. Everest.  For a global perspective, see this 3D image and this composite of the dark hemisphere.  The landslide at the right of the previous image slumped from a 9-mile scarp of an impact basin, and flowed tens of miles across a crater floor.    For decades, scientists have tried to prove one of two models for Iapetus’ black-and-white contrast: either the dark material erupted from the inside (endogenic) and spread over the surface, or was splattered onto the moon from the outside (exogenic).  Since the dark material covers the leading hemisphere (the side facing the orbital motion, like a windshield), the exogenic model has been slightly favored, but planetary scientists could not understand a source for the material that would not have also plastered the inner moons, unless it was dust blown off from an impact on Phoebe (see 06/14/2004 headline) – but the spectra didn’t match.  The new hi-resolution images from Cassini, taken seven times closer than Voyager, still favor the exogenic model, because the dark regions have feathery edges and are distributed around the equator, not the poles.  The pictures seem to rule out a liquidy or mushy ooze spreading out from the interior, but scientists cannot eliminate the possibility that dusty debris erupted from cracks or geysers.  Could geological processes related to the equatorial ridge be related to the dark material?  If so, what drove those processes on a frozen moon?    The ridge is a geological feature unique in the solar system.  It seems to cut right through more ancient craters.  The albedo difference divides the leading and trailing hemispheres, but this ridge divides the northern and southern hemispheres.  Are they related?  Since Iapetus is “far out” (literally and figuratively), Cassini won’t get another chance to observe it at close range till 2007.  That encounter, in September of that year, will be much closer and provide 100 times better resolution.  The JPL press release says scientists are hoping to determine whether Iapetus was volcanically active in the past – odd for an icy-cold moon far from any tidal influences.  Two weeks ago, scientists had a major mystery to solve at Iapetus; now they have two.Planetary science is the art of building skeet for observations to shoot down.  Next episode in this exciting sport comes this Friday, when the Huygens Probe parachutes to the surface of Titan.(Visited 10 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

BlackBerry CEO Thorsten Heins: Maybe Not A Patsy After All

first_imgThe Rise and Rise of Mobile Payment Technology Thorsten Heins was supposed to be the steward that oversaw the final collapse of one of the great technology companies of the last 30 years. When Heins took over Research In Motion in early 2012, not many people gave him a lot of hope. “Thorsten Heins Is A Patsy Set Up To Fail” was my take here on ReadWrite.At the time, Research In Motion (now BlackBerry) was grasping for straws. It had just reported half a billion dollars in quarterly, losses and co-founders and co-CEOs Jim Balsillie and Mike Lazaridis were getting ousted by the RIM board — a panel they ostensibly controlled for more than a decade. At the time, Heins was seen as a front guy while Balsillie and Lazaridis pulled his strings from behind the curtain. Heins was supposed to be Norville Barnes. So long, Mike Lazaridis Heins Comes Into His OwnFast forward to today. BlackBerry has a new name, a new series of good smartphones in its BlackBerry Z10 and coming Q10 devices and a streamlined and more efficient business that has renewed focus on services and applications. In its latest quarterly earnings report, BlackBerry announced $94 million in profit and said it sold a million BlackBerry Z10 devices in a little over a month, with strong channel sales likely to come. “Our financial transformation over the past 12 months has been outstanding,” Heins said on the company’s earnings call. “To say that it was a very challenging environment to deliver improved financial results could well be the understatement of the year. In the face of numerous challenges this past year, BlackBerry has gone from a significant operating loss in the first quarter of the year to an operating profit in the fourth quarter.”Heins, who is prone to over enthusiasm and exaggeration, wasn’t lying. The company swung to profit from a GAAP loss of $518 million and an operating loss of $118 million. In that time, BlackBerry’s liquid cash hoard rose from $2.1 billion to $2.9 billion despite losing market share to the like of Android and Apple.Balsillie is gone. Lazaridis is retiring at the beginning of May. It appears that Heins has taken hold of BlackBerry and made it his without the puppeteers manipulating from the background.Remaking BlackBerry In His Own Image“Thorsten has been doing a good job at the helm, in my opinion. He got the devices to market (although a bit later than expected),” mobile analyst Jack Gold, principal at J. Gold Associates, wrote me in an email. “He’s effectively managing the bottom line (still not done but he’s on his way), and he’s made a number of management changes. The restructuring isn’t totally done yet, but he does seem to be remaking BB in his image of what it needs to be.”Heins & Alicia Keys at BlackBerry 10 LaunchBlackBerry and Heins had a baptism by fire in 2012. The new BlackBerry 10 mobile operating system was delayed. Then it was delayed again. BlackBerry completely missed the holiday shopping season, eventually launching its new devices on Jan. 30. at an event in New York City. Between the time that Heins took over and the launch of BlackBerry 10, the company was forced to lay off thousands of workers. It got so bad that BlackBerry hired powerful Wall Street groups J.P Morgan and RBC Capital to perform a strategic review, something that pointed to a potential sale of the company.Instead of a sale, it seems that the strategic review has led to a leaner, meaner BlackBerry. The company saw a billion dollars in savings from operating income a year before it expected to. That has led to profitability, even though BlackBerry technically lost 3 million subscribers (from 79 million to 76 million) in the most recent quarter. Just The BeginningBlackBerry is not done though. Heins called the profitable quarter and launch of BlackBerry 10 just the beginning. It has yet to launch the BlackBerry Q10, which like BlackBerrys of old features a physical keyboard, though it has been testing the device on 40 carriers in 20 countries. In 2013, more BlackBerry 10 devices will be released at lower price points to take advantage of emerging markets where BlackBerry plays particularly well, like the Middle East and Africa. BlackBerry Z10“Everyone at BlackBerry understands that there is more work to do. Delivering BlackBerry 10 and a profitable quarter is just the starting line, not the finish line,” Heins said.Through it all, Heins comes out looking like a hero. Instead of a patsy, he has superseded both Balsillie and Lazaridis and given the BlackBerry tangible hope for a profitable future. It may only be the beginning, but Heins’s first year of hardship is over. “Of course, the next two-to-four quarters will give us a better understanding of how successful he’s been, but so far I give him a pretty good grade,” Gold said.Lazaridis photo courtesy of Wikipedia  Role of Mobile App Analytics In-App Engagement dan rowinski What it Takes to Build a Highly Secure FinTech …center_img Why IoT Apps are Eating Device Interfaces Tags:#BlackBerry#BlackBerry 10#mobile#Thorsten Heins Related Posts last_img read more

Brazil beat Croatia 3-1, clinch first points in FIFA World Cup

first_imgNeymar celebrates after scoring a goal for Brazil against Croatia on Friday Neymar gave Brazil a winning start to its home World Cup, scoring twice to lead the host nation to an unconvincing 3-1 victory over Croatia in the opening game on Thursday.STATISTICAL HIGHLIGHTS | REFEREE BLUNDER Brazil had a disastrous start when defender Marcelo found his own net while trying to clear a low cross by Ivica Olic in the 11th minute, but Neymar then showed why the nation’s high hopes are all pinned on him. The 22-year-old forward equalized in the 29th minute, clearing a defender in midfield before making a run toward the edge of the area and firing a perfectly placed low shot that went in off the post. The game turned on a controversial penalty awarded by Japanese referee Yuichi Nishimura in the 71st minute when striker Fred went down inside the area under minimal contact from defender Dejan Lovren. Neymar scored from the spot and the Croatians were furious. “If that was a penalty, we should be playing basketball,” said Croatia coach Niko Kovac. “Those kinds of fouls are penalized there.” “That is shameful, this is not a World Cup referee. He had one kind of criteria for them and another for us. The rules were not the same,” said Kovac. As Croatia searched desperately for an equalizer, Oscar added to the lead in the first minute of injury time with a toe poke from just outside the penalty area. Croatia had a few good chances toward the end and had a goal disallowed in the 83rd after the referee ruled Olic had fouled Brazil goalkeeper Julio Cesar.advertisement The host nation hasn’t lost in the opening match in the last nine World Cups. South Africa was held by Mexico to a 1-1 draw four years ago. A draw would have been a huge disappointment for Brazil, which had won its opening match the last eight times. The five-time champion entered the home tournament having won 15 of its last 16 games, including five in last year’s Confederations Cup, the warm-up tournament it won. The team hadn’t been held to a draw in the opener since a 1-1 result against Sweden in the 1978 World Cup in Argentina. The result kept Croatia without a win in its last five World Cup matches. Its last triumph was a 2-1 win over Italy in 2002. The Croats didn’t play in South Africa four years ago. The tournament finally got underway as planned after months of talk about the preparation problems that plagued Brazil since it was picked as host seven years ago. The troubled Itaquerao Stadium, which wasn’t fully finished for the opener, held up without major setbacks to fans or the match itself, although part of the lights atop the pitch went out a few times for brief periods in the first half. Despite the support from most of the more than 62,100 fans in attendance, Brazil got off to a slow start and allowed Croatia to threaten early. It opened the scoring with one of its first chances as Marcelo failed to clear Olic’s cross. The ball got slightly redirected by striker Nikica Jelavic before the Brazilian defender touched it backward into the goal. The crowd stayed behind the team despite the setback and Brazil started creating more chances. Midfielder Paulinho and playmaker Oscar both came close to scoring, but it was Neymar who found the net with his well-struck low shot into the far corner. “I wouldn’t say it was the best game, but it’s the World Cup debut,” said Oscar. “I’m representing the national team and I’m giving it my best. And I managed to do this.” The penalty kick was awarded when Fred appeared to be tugged inside the area by Lovren. The Croats insisted Fred wasn’t touched and at least five Croatian players swarmed around Nishimura of Japan to protest. Neymar converted his shot from the spot even though Croatia goalkeeper Stipe Pletikosa touched the ball and nearly made the save. The goals were Neymar’s 32nd and 33rd goals in 50 matches with Brazil’s national team. The Barcelona star got a standing ovation when he was substituted near the end of the match. He had received a yellow card in the 27th for elbowing Real Madrid playmaker Luka Modric. The other Group A match will be played between Mexico and Cameroon in Natal on Friday.last_img read more

Know your Touch/sports market? Do they know you?

first_imgFor answers and insights into these key questions and how Affiliates can better engage with their local communities and market and promote their competitions and product, be sure to catch the key ‘Affiliates Marketing’ workshop at tomorrow’s NSW State Conference at Bankstown Sports Club (for registered delegates only). The workshop taps off at 3.45pm and presented by TFA GM Marketing, Julian Buckmaster and Communications Coordinator, Lauren Pritchard. Pass it on!Related LinksKnow your Touch market? How well do your know your local Touch/sports market? And, importantly, how well do they know you?  last_img read more

a month agoFaustino Anjorin to make Chelsea debut in Carabao Cup

first_imgFaustino Anjorin to make Chelsea debut in Carabao Cupby Paul Vegasa month agoSend to a friendShare the loveFaustino Anjorin is set to make his Chelsea debut in the Carabao Cup against Grimsby.The Daily Mail says the 17-year-old is to be included in the squad for Wednesday’s Carabao Cup clash.The attacking midfielder is viewed as one of the brightest prospects in Chelsea’s burgeoning academy and has impressed Lampard and his assistant Jody Morris since their arrival back at Stamford Bridge earlier this summer.Anjorin is now poised to be the next Blues youngster to be given the chance to impress by the club’s new management team, who have shown they are not afraid to rely on academy players.The teenager has enjoyed a blistering start to the season, scoring five goals in his first seven games – including a brace in the EFL Trophy win over Swindon last month. About the authorPaul VegasShare the loveHave your saylast_img read more

16 days agoBarcelona captain Lionel Messi: I was ready to leave in 2013 and 2014

first_imgBarcelona captain Lionel Messi: I was ready to leave in 2013 and 2014by Carlos Volcano16 days agoSend to a friendShare the loveBarcelona captain Lionel Messi admits he’s seriously considered leaving the club in the past.Messi, speaking on RAC1, revealed he was upset with the way he was being treated by the Spanish tax authorities.He stated: “There have been times when I ended up tired due to a lot of circumstances. I had several times, especially in 2013 and 2014, when I had the problem with the Treasury. It was very difficult for me and my family.”People really don’t know about what happens at that moment, they don’t listen, they think and talk. I was the first one and that’s why it was all so hard. Since they got angry and showed that they were going for everything with me, showing that they were going for all the players, it was diluted. “The best of all is that my children were small and did not know anything, but we had a hard time. At that time I had the mind to leave, not for wanting to leave Barça, but for what was happening.” TagsTransfersAbout the authorCarlos VolcanoShare the loveHave your saylast_img read more

Grassy Narrows supporters dump mysterious liquid outside Ontario legislature

first_imgThe Canadian Press TORONTO – Six protesters supporting the remote Grassy Narrows First Nation were arrested by Toronto police Thursday after they dumped a mysterious liquid outside the front doors of the Ontario legislature.Members of FreeGrassy.net, wearing protective white coveralls and surgical masks, brought four barrels sporting skull and crossbones warnings to the legislature. One barrel was spilled, dumping a thick grey substance that oozed out over the broad front driveway.Security officials blocked the legislature’s main doors and cleared the vast south lawn of tourists while hazardous materials crews tried to determine what the substance was.At Queen’s Park-Supporters have created a chemical dump to call for cleaning of Grassy Narrows river. #OnPoli pic.twitter.com/kuTkrgsGbx— No One Is Illegal (@nooneisillegal) June 23, 2016Protest spokesman Syed Hussan refused to identify “the chemical spill” on the legislature’s doorstep.“It definitely looks a lot like mercury, but I can’t tell you,” said Hussan. “If this was in Grassy Narrows, the government would take 40 years to identify it and clean it up.”Grassy Narrows, which is near the Manitoba border and north of Kenora, has suffered from mercury poisoning since the Dryden Chemical Co. dumped 9,000 kilograms of it into the Wabigoon and English River systems during the 1960s.The government closed the local fishery that formed the basis of the Grassy Narrows economy in the 1970s, but some residents ignored the order to stop eating the fish.The mercury contamination is blamed for many illness and some deaths in the community.Hussan said the protesters wanted people in downtown Toronto to feel the worry that Grassy Narrows residents have lived with for decades.“We’re absolutely trying to bring a slight amount of the fear that the people of Grassy Narrows face every day into this community to show the injustice, and to say that just like this (spill) will be cleaned, we want the river system to be cleaned, too,” he said.“It’s not about a stunt.”Legislative security staff called in Toronto police and firefighters to help deal with the protest and try to determine exactly what was dumped, but authorities were not treating it as a highly toxic substance that would require evacuations.“At this point there is no reason to believe there is any threat to public safety,” said Toronto police Const. Craig Brister.“Right now they’re just at the point of determining exactly what it is.”The response to the spilled substance at Queen’s Park included the Chemical, Biological, Radiological, Nuclear and Explosive Team as well as a Hazardous Materials Team, but Brister couldn’t say how long it would take to complete the testing of the grey liquid.“That’s essentially going to take as long as it’s going to take,” he said.The six protesters who were arrested were charged with mischief.A group of Grassy Narrows teens were ejected from the legislature three weeks ago for wearing T-shirts that said “water is sacred.” Wearing T-shirts with slogans is considered a protest, which is not allowed inside the legislature.Two Ontario cabinet ministers are scheduled to visit Grassy Narrows on Monday to talk with community leaders about various reports on the mercury contamination and find out what should be done to clean it up.last_img read more

Safe government jobs for friends and family

first_img Safe government jobs for friends and family. Sweetheart real estate deals: properties sold to the politician for far less than they are worth, with a loan just waiting for their signature. I know something about bribery. When I was a teenager, my dad was in the construction business in Chicago. So, as soon as I got my driver’s license (at 16), I was sent out delivering bribes. That’s just the way     things were done, and my dad let me drive a fancy car (with an FM radio!) to make the deliveries. I delivered leather coats to wives, envelopes to government offices, other envelopes to politicians at their fundraisers, booze to lots of people, and in one case, the answers to the state driver’s exam to a guy in… um… a different line of work. I extricated myself from these chores fairly quickly. Aside from the cool car, it made me uncomfortable. These escapades did, however, give me a fairly good understanding of how bribery in America works. Big League Bribery Most of the bribery I did as a kid was fairly mundane – minor league stuff. The one exception was the political fundraiser. That was big league bribery. Following explicit orders, I dressed up and stood in a greeting line for as long as it took to come face to face with the politician. I handed him the envelope and told him precisely who it was from. I shook his hand and he told me to please enjoy the buffet. I thanked him, then stepped away. This was done in a gala ballroom, with hundreds of people in the meet-and-greet line. Almost every man was in a suit, and the women were in fancy dresses. Everything was pristine. That’s the way bribery is done in the big leagues. I know there are people who will say, “Campaign donations are legal, so they can’t be considered bribery,” but I know precisely why all these people were standing in line to give the politician money. I lived this for a period of time and watched it for a much longer period of time. All of these people wanted something and expected to get it in return for their “donation.” “Legal” or not, in honest words this is called bribery. Approved bribery, polished bribery, but bribery just the same. It’s Big Business The national election of 2012 brought in over six billion dollars of donations, and that was just for a few hundred races. I can’t find figures on all the state and local elections, but since they include many thousands of races, I have to assume that they involve even larger amounts of money. So, I think it’s probably safe to say that a minimum of twelve billion dollars are spent as campaign contributions each year. That’s a fairly large business, and the vast majority of it – everything beyond the “hopeful granny” money – is donated on a quid pro quo basis. People donate so they can get more back. But this is only part of the whole. Many more billions are given to politicians each year in back-door payoffs. These bribes come in forms like these: Ownership shares of local businesses. A swimming pool for their yard, after giving a construction project to the right person.last_img read more

Last December Stephen Hawking warned that it coul

first_imgLast December, Stephen Hawking warned that it could “spell the end of the human race.” You’re reading this, so “it” hasn’t happened yet. And I don’t think it will. But who am I to argue with Professor Hawking? “It,” by the way, is full artificial intelligence. Hawking told the BBC that it “would take off on its own, and redesign itself at an ever-increasing rate.” Eventually, it would supersede humans. That’s a far-off worry. Hawking can fret about it for us. In the meantime, I’m concerned about another computer-related problem: investors are turning to robo-advisors and ignoring their portfolios. Robo-advisors are a cheap tool for managing your investments. They use a series of algorithms to pick stocks and rebalance your portfolio for you. They’re supposed to make investing fun. In my experience, investing is only fun when you make money. When you lose money, it’s not. No gadget or gizmo can change that. So, if you want a robo-advisor to help you have this type of fun, keep these three points in mind: 1. Use your own judgment. Both humans and robots make errors. As a tool, a robo-advisor is only as good as the information you provide. Answer its questions accurately, then decide for yourself if its recommendations are right for you. 2. Don’t be penny wise and pound foolish. A good financial advisor might charge 1% of your overall portfolio to help manage your money. For a $1 million portfolio, that’s $10,000 per year, regardless of performance. While robo-advisors aren’t free, they are less expensive. Maybe you don’t want to pay for ongoing advice. I get it. But at least ask for help when you start using a robo-advisor. Otherwise, you might learn the true meaning of “garbage in, garbage out.” Philip van Doorn shared a telling example of an iffy robo projection with MarketWatch: “If I stuck with the plan, I would be ‘on track’ to build a nest egg of $4.3 million by March 2047, with a required minimum annual return of 9.7%.” 9.7%? Yeah right! Sure, it might happen. But even in boom times, the conservative estimate for long-term planners was 6%. A human can serve as the ultimate reality check. You don’t want to wake up in 2047 thinking, “I had the perfect plan. If only I’d consistently earned 9.7%.” 3. Monitor your results often. Using a robo-advisor does not mean you can set it and forget it. Things change. The Fed’s zero-interest-rate policy was unthinkable in 2007. Then it happened. Eventually, another unthinkable market scenario will become reality. When it does, you’ll need to adjust your plan. A robo-advisor can be a useful tool—but it’s only a tool. Just like a hammer, it needs a human to wield it.last_img read more