Thursday, May 6, 2010
Women in U.S. having children later, better educated
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NASA team cites new evidence that meteorites from Mars contain ancient fossils
- NASA's Mars Meteorite Research Team reopened a 14-year-old controversy on extraterrestrial life last week, reaffirming and offering support for its widely challenged assertion that a 4-billion-year-old meteorite that landed thousands of years ago on Antarctica shows evidence of microscopic life on Mars.
In addition to presenting research that they said disproved some of their critics, the scientists reported that additional Martian meteorites appear to house distinct and identifiable microbial fossils that point even more strongly to the existence of life.
"We feel more confident than ever that Mars probably once was, and maybe still is, home to life," team leader David McKay said at a NASA-sponsored conference on astrobiology.
The researchers' presentations were not met with any of the excited frenzy that greeted the original 1996 announcement about the meteorite -- which led to a televised statement by President Bill Clinton in which he announced a "space summit," the formation of a commission to examine its implications and the birth of a NASA-funded astrobiology program.
Fourteen years of relentless criticism have turned many scientists against the McKay results, and the Mars meteorite "discovery" has remained an unresolved and somewhat awkward issue. This has continued even though the team's central finding -- that Mars once had living creatures -- has gained broad acceptance among the biologists, chemists, geologists, astronomers and other scientists who make up the astrobiology community.
Speaking at a four-day conference near NASA's Johnson Space Center, McKay's team didn't claim it had definitive proof that the meteorites they are studying -- which can be identified as Martian because the gases inside them match the Martian atmosphere -- contain the remains of living organisms. Rather, the researchers described their re-energized confidence as emerging from a process of nitty-gritty science, based on inference, simulated testing and a kind of interplanetary forensics.
McKay cited years of work by team members Kathie Thomas-Keprta and Simon Clemett that he said rebuts a central critique of the meteorite's significance. He also pointed to the presence of what appear to be fossilized microbes in other Martian meteorites, as well as the steady flow of discoveries by others pointing to a Mars that at one time could have supported life -- wet, warmer and enveloped in a potentially protective atmosphere and a magnetic field.ad_icon
Rebutting the critics
The Thomas-Keprta work, published late last year in the journal Geochemica, centers on the origin of iron-based crystals called magnetites in the original Mars meteorite, called ALH84001. Magnetites on Earth are sometimes created by bacteria that respond to the planet's magnetic field; the McKay team argued that some of the Martian magnetites were of this biologically created type.
Critics had said that the magnetites could have just as easily existed without bacteria or biology -- that they sometimes form as a result of the shock and searing heat that could come, for instance, from an asteroid strike. But in the recent paper, Thomas-Keprta, an expert in the use of electron beam technology to look inside rocks, reported that the purity of the magnetites made that explanation impossible.
Reflecting both the contentiousness and drama of the debate, Thomas-Keprta finished her talk by referring to a recent article in a science journal that said the astrobiology community had "mostly abandoned" the biological explanations for the makeup of ALH84001. Her retort: "As Mark Twain put it, 'Reports of our death have been greatly exaggerated.' "McKay complained that not enough attention had been paid to work such as Thomas-Keprta's.
"All the criticisms of our original paper got widely distributed, but when we did the work to prove the critics were wrong, it hardly made a ripple," he said at a conference interview. "We're now in a position to say we've knocked down all the criticisms -- and our biological explanation is the one left standing."Unbelieveble Muslims
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In addition to presenting research that they said disproved some of their critics, the scientists reported that additional Martian meteorites appear to house distinct and identifiable microbial fossils that point even more strongly to the existence of life.
"We feel more confident than ever that Mars probably once was, and maybe still is, home to life," team leader David McKay said at a NASA-sponsored conference on astrobiology.
The researchers' presentations were not met with any of the excited frenzy that greeted the original 1996 announcement about the meteorite -- which led to a televised statement by President Bill Clinton in which he announced a "space summit," the formation of a commission to examine its implications and the birth of a NASA-funded astrobiology program.
Fourteen years of relentless criticism have turned many scientists against the McKay results, and the Mars meteorite "discovery" has remained an unresolved and somewhat awkward issue. This has continued even though the team's central finding -- that Mars once had living creatures -- has gained broad acceptance among the biologists, chemists, geologists, astronomers and other scientists who make up the astrobiology community.
Speaking at a four-day conference near NASA's Johnson Space Center, McKay's team didn't claim it had definitive proof that the meteorites they are studying -- which can be identified as Martian because the gases inside them match the Martian atmosphere -- contain the remains of living organisms. Rather, the researchers described their re-energized confidence as emerging from a process of nitty-gritty science, based on inference, simulated testing and a kind of interplanetary forensics.
McKay cited years of work by team members Kathie Thomas-Keprta and Simon Clemett that he said rebuts a central critique of the meteorite's significance. He also pointed to the presence of what appear to be fossilized microbes in other Martian meteorites, as well as the steady flow of discoveries by others pointing to a Mars that at one time could have supported life -- wet, warmer and enveloped in a potentially protective atmosphere and a magnetic field.ad_icon
Rebutting the critics
The Thomas-Keprta work, published late last year in the journal Geochemica, centers on the origin of iron-based crystals called magnetites in the original Mars meteorite, called ALH84001. Magnetites on Earth are sometimes created by bacteria that respond to the planet's magnetic field; the McKay team argued that some of the Martian magnetites were of this biologically created type.
Critics had said that the magnetites could have just as easily existed without bacteria or biology -- that they sometimes form as a result of the shock and searing heat that could come, for instance, from an asteroid strike. But in the recent paper, Thomas-Keprta, an expert in the use of electron beam technology to look inside rocks, reported that the purity of the magnetites made that explanation impossible.
Reflecting both the contentiousness and drama of the debate, Thomas-Keprta finished her talk by referring to a recent article in a science journal that said the astrobiology community had "mostly abandoned" the biological explanations for the makeup of ALH84001. Her retort: "As Mark Twain put it, 'Reports of our death have been greatly exaggerated.' "McKay complained that not enough attention had been paid to work such as Thomas-Keprta's.
"All the criticisms of our original paper got widely distributed, but when we did the work to prove the critics were wrong, it hardly made a ripple," he said at a conference interview. "We're now in a position to say we've knocked down all the criticisms -- and our biological explanation is the one left standing."Unbelieveble Muslims
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*Extensive exposure to Solution Design, System Implementation and IT Service Management, Project Management Methodology and practice*Strong knowledge with End-to-End Solutions such as ERP, HRMS, FMS and hands-on practices on Technologies such as application servers, database
*Exceptional leadership and interpersonal skills, Lean Six Sigma
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FMEA, DOE, ISO family etc.short term：blog lace wedding dresses
look for new job and adapt to new job quickly long term：be an expert in EMS and semiconductor area or get a senior position。
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Wednesday, March 24, 2010
Campus Love,a Forever Topic
"Campus love cannot last long!" For decades, this saying has been passed on from generation to generation. Many dizzy and seemingly correct reasons have been attached to it during the years that you are the only one who feels betrayed students are not mature enough to confront all those troublesome and irritating matters brought near by love, that the major task of students is learning and nothing can replace it, that there is still a long way of life before students and anything can the first time in my life come and break the two up. In some cases, these arguments can be true. But certainly,they shouldn't be taken as universal truths.
Admittedly, when speaking of maturation, students cannot,of course, hold a candle to those who have been saturated in the all included, ranging from benevolence to evil, social "sea". But what's the business of maturation when we are talking about love? As one of the innate a plan to make all of this right emotions of human beings, love happens deeply from it's your turnone's heart and all impulsively. Thus, though practically impossible, no rational components should involve in a pure love matter. When being far away from the dreary commitment to mean ambition, the love of comfort, social climbing,and the devotion to material things, young people treat their love more simply and seriously. That is true love, what else can last even longer? And it is also a fallacy when use "future events can break the two up" to speak against campus love. Some people may cite the example of being separated upon graduation to illustrate the transience of campus love. Who are you? But why not think in a reverse way?
True love builds up a strong affinity for each other between the lovers. It can help them overcome all external obstacles to get together. Now that we can clearly recognize the irrationality of the old saying, some more potent bases of argument are supporting for its antithesis. Margaret and Archie have been couple for over 50 years.They got to know each other in the lab of Zoology in their college. "Her drawings were always neat and, where stippling was required, her dots were spread evenly on the drawing and precise. My drawings were rather irregular and my stippling looked more like commas than dots..." Archie can remember clearly all the details during the periods in the Zoology lab with Margaret."We came together just because we always had the same painful task to deal with!" Yes, that's the most cases. Campus love usually takes place when the two are both pursuing the same goal.In such condition, they become intimate partners and help each other all the way through. Thus, the love turns to be strong and steadfast. "Now, we would both be happy to call it (college) our permanent home, and plan to continue living around this area after the wedding." Bill and Beth is another pair of lovers who get acquainted on campus. "We study together in the library, eat together in the dining room, watch movie, attend classes, and go to the parties. Campus provided us with so many opportunities to stay together. Surely we get intimate and know each other better!"
This illustrates the point that campus can be a really perfect place to ignite eternal love. While this lasting love can also happen more remarkably on a sinking ship or in a cruel war, we can, at least, proclaim safely that no convincing evidence can support the veto against perpetual love initiating on campus. So, why keep on sticking with that platitudinous old saying? Maybe Cupid has already prepared an arrow for you...
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Admittedly, when speaking of maturation, students cannot,of course, hold a candle to those who have been saturated in the all included, ranging from benevolence to evil, social "sea". But what's the business of maturation when we are talking about love? As one of the innate a plan to make all of this right emotions of human beings, love happens deeply from it's your turnone's heart and all impulsively. Thus, though practically impossible, no rational components should involve in a pure love matter. When being far away from the dreary commitment to mean ambition, the love of comfort, social climbing,and the devotion to material things, young people treat their love more simply and seriously. That is true love, what else can last even longer? And it is also a fallacy when use "future events can break the two up" to speak against campus love. Some people may cite the example of being separated upon graduation to illustrate the transience of campus love. Who are you? But why not think in a reverse way?
True love builds up a strong affinity for each other between the lovers. It can help them overcome all external obstacles to get together. Now that we can clearly recognize the irrationality of the old saying, some more potent bases of argument are supporting for its antithesis. Margaret and Archie have been couple for over 50 years.They got to know each other in the lab of Zoology in their college. "Her drawings were always neat and, where stippling was required, her dots were spread evenly on the drawing and precise. My drawings were rather irregular and my stippling looked more like commas than dots..." Archie can remember clearly all the details during the periods in the Zoology lab with Margaret."We came together just because we always had the same painful task to deal with!" Yes, that's the most cases. Campus love usually takes place when the two are both pursuing the same goal.In such condition, they become intimate partners and help each other all the way through. Thus, the love turns to be strong and steadfast. "Now, we would both be happy to call it (college) our permanent home, and plan to continue living around this area after the wedding." Bill and Beth is another pair of lovers who get acquainted on campus. "We study together in the library, eat together in the dining room, watch movie, attend classes, and go to the parties. Campus provided us with so many opportunities to stay together. Surely we get intimate and know each other better!"
This illustrates the point that campus can be a really perfect place to ignite eternal love. While this lasting love can also happen more remarkably on a sinking ship or in a cruel war, we can, at least, proclaim safely that no convincing evidence can support the veto against perpetual love initiating on campus. So, why keep on sticking with that platitudinous old saying? Maybe Cupid has already prepared an arrow for you...
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technique of WLAN
With the rapid development of the technique of WLAN, it has solved the question in the remote testing domain which enhances unceasingly to the network Take my hand performance requirement. Wireless networking which based on 802.11 agreements, generally suit in the high speed data transmission application that covered several dozens meters to several put all this behind us kilometers. Because of the wireless network build's convenience, WLAN is suitable warm hand in the place where needed the temporary networking and hard wiring. At present, the wireless remote test network that based on WLAN, became a priority choice in scattered testing unit and bad testing environment.The wireless data transmission platform is key point in the testing system. She is the love of my life.How to play more effective role in remote testing domain, which is a issue that many people concerned about. How to apply the wireless network as the transmission medium, the system builds wireless data transmission platform by the text communication and file transfer, realizes real-time transmission and the resource sharing of the remote testing data, which will be the key point of this paper research.What do you want from the future? This paper analyzes the WLAN and the network programming correlation technique, chooses the wireless local area network as the network transmission medium, according to application characteristic of the wireless remote testing transmission system, carries on the detailed analysis to hardware and software of the system, gives system's overall design plan, proposes and realizes remote testing data transmission platform based on the wireless networking.802.11 a is taken as the air interface standard in the system,it works in the 5.8GHZ frequency band. The communication distance is over 20KM, and the communication bandwidth can reach 30Mbps. The system uses C/S mode. The design of server and client’s I/O models that were selected overlapping I/O and event notification models, suitable to the software achieve of scale. The server and the client satisfy the multiuser request by using the multithreading. The software solves the question of the data“stick the package”in the text communication, realizes“breaking point supervention”in the file transfer aspect, increases the test data transmission reliability and the effectiveness under the wireless network application background.It is proved that the wireless remote testing data transmission platform has realized data resources sharing, raised the efficiency of testing work, conformers existing resources effectively and builds a prompt and convenient network message communication platform for testers.The application scope of wireless remote testing data transmission platform is widespread, which can meet the situation of long-distance range, the high speed, disoperation of testing unit, poor testing environment, the testing information needs real-time alternately and sharing resources effectively. It can be used in monitor domains widely such as hydrology, meteorology, geology.
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Was promoted from Trainee of Fresh Division Manager relief to Fresh Division Manager You and me…It's real… half a month later after kneel only to God entering into the company, took over whole fresh division of Global Plaza Store, lead Fresh team to achieve the company man from hell targets. 2003. 2 - 2003. 8 Assistant to Director of Merchandise Dept Just have a little faith. in South RegionMerchandise Director acted as my Sponsor, my level was Management Trainee. I followed my boss to attend important management meetings, tracked the execution and feedback of significant department issues, consolidated merchandise department internal data, communicated, coordinated and cooperated with other external departments; got a professional training about operating retail system, quickly mastered its application.
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