Share Share via TwitterShare via FacebookShare via LinkedInShare via E-mail A small layer of dust suspended several feet above the moons surface that was first photographed by the Lunar Surveyor spacecraft in the 1960s and later observed by Apollo astronauts has been a puzzle to some planetary scientists.But a University of Colorado at Boulder research team is on the verge of explaining the odd dust phenomenon, which also may occur on asteroids, the rings of planets and even around spacecraft. The new results can help explain dust transport on the surface of the moon, said CU-Boulder doctoral student and experiment team member Amanda Sickafoose. The research also may help scientists mitigate problems related to the contamination of spacecraft, scientific instruments and space suits by dust as NASA contemplates future missions to the moon and Mars. Researchers have assumed the lunar dust levitation is caused by ultraviolet photons from the sun ejecting electrons from isolated grains of dust, giving each a positive charge. The same radiation also is thought to be knocking electrons off the moons surface rocks, causing the electrons to bounce upward and negatively charge dust grains near the surface, said CU-Boulder physics Professor Scott Robertson.The end result is thought to be that negatively charged dust particles fall back to the surface while a small belt of positively charged particles float several feet above the surface. The positively charged particles are thought to be held in place in a layer less than a foot across by gravitational forces pulling the particles toward the moons surface and the repelling force of the positively charged moon.The team from CU-Boulders Laboratory for Atmospheric and Space Physics designed an experiment to confirm the first step of the theory that included dropping individual, pepper grain-sized particles of zinc, copper and graphite through an evacuated chamber illuminated by UV light from an arc lamp. The grains fell about a foot into a device known as a Faraday cup, which directly measured the electrical charge of each grain.Each dust particle received roughly the amount of positive charge the research team expected, said Robertson. In a follow-up experiment, a zirconium plate was placed near the falling grains to simulate the effect of moon rocks emitting photoelectrons. That experiment produced negatively charged dust particles, as expected, said Sickafoose.A paper on the subject was published in the June 26 issue of Physical Review Letters. The paper was authored by Sickafoose and LASP Research Associates Joshua Colwell, Mihaly Horanyi and Robertson.”The original theory seemed to satisfy most planetary scientists when it was proposed some time ago,” said Robertson, also a research associate at CU-Boulders Laboratory for Atmospheric and Space Physics. “But no one seems to have bothered to do a rigorous experimental check.”The LASP teams final goal is to simulate the effect of floating dust by levitating particles over a substrate simulating the moons surface in the laboratory, said Sickafoose, who is pursuing a doctorate in the astrophysical and planetary sciences department. “By understanding how and why these dust particles charge, scientists can find ways to better protect telescope lenses, spacecraft instruments and astronauts from the negative effects of charged space dust,” she said.The experiments were devised after CU researchers modified an apparatus originally assembled at CU-Boulder by University of Northern Colorado faculty member Bob Walch several years ago. “CU-Boulder is one of the few places in the country that has the equipment necessary to carry out these type of experiments,” said Sickafoose. Published: July 11, 2000
Broadway.com salutes many great years working alongside the stellar staff at The Hartman Group—we’ll miss you! “Theater salvaged my sanity and defined community for me when I was younger and has continued to do so,” Hartman said in a statement. “It has been a privilege to work in an industry that I love and I owe a debt of gratitude to my clients and colleagues over the past 21 years for an absurdly vibrant life as a Broadway press agent in New York City. I am a very lucky man.” View Comments Broadway publicity firm The Hartman Group, which currently represents Wicked, If/Then, 700 Sundays, Big Fish, Romeo & Juliet, First Date, Rock of Ages and more, will close its doors January 5, 2014. The firm’s founder, press agent Michael Hartman, is leaving New York for Texas to start a family with his husband. Hartman will also become the CEO of Texas chain Amy’s Ice Creams, with 15 locations throughout the state. The Hartman Group was founded by Hartman in 2009, and remains one of the largest theatrical publicity firms in New York. Upcoming productions were slated to include The Last Ship, Charlie & the Chocolate Factory, Houdini, Rear Window, Cirkopolis, Dames at Sea and Coal Miner’s Daughter.
WASHINGTON – More than 26 million people worldwide have Alzheimer’s disease, and a new forecast says the number will quadruple by 2050. At that rate, one in 85 people will have the brain-destroying disease in 40 years, researchers from Johns Hopkins University conclude. The new estimates, being presented Saturday at an Alzheimer’s Association conference in Washington, are not very different from previous projections of the looming global dementia epidemic with the graying of the world’s population. But they serve as a sobering reminder of the toll to come if scientists cannot find better ways to protect aging brains. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!
Brand South Africa will bring an opportunity to discuss education with specialists in the field, to the community in Soweto when it hosts the second Play Your Part/Sowetan dialogue in Soweto, Orlando West, Uncle Toms Hall on 22 January.Education plays a significant role in growing a country and in its competitiveness, says Brand South Africa CEO Miller MatolaThe dialogue will focus on the topic, “Why many learners and students start but don’t finish?” and is in line with the awareness that learners must stay in school to receive quality education.The discussion will be guided by:Adam Habib – Vice Chancellor at Wits UniversityVuyo Jack – CEO and founder of EmpowerdexPanyaza Lesufi – National Department of Basic EducationRosie Chirongoma – (PfP) Fundraising and Stakeholder Engagement at SymphoniaDr Jeffrey Mabelebele – Higher Education South AfricaBrand South Africa CEO Miller Matola said, “Education plays a significant role in growing a country and in its competitiveness. We therefore need to ensure our school system can deliver quality education to enrich our learners and provide them with the tools they need to be successful.”“I invite all those interested in ensuring our education system is able to deliver the kind of education that supports the intellectual growth and development of our young people to play their part and attend the dialogue,” concluded Mr Matola.Sowetan Dialogues are public conversations held in local communities across the country. They provide a platform for discussions on issues that affect societies and what we can collectively do to improve these conditions.Media are invited to attend as follows:Date : Wednesday, 22 January 2013Venue : Soweto, Orlando West, Uncle Toms HallTime : 18h00 for 18:30RSVP : Fikile MakhobaEmail: [email protected] Mobile: 082 404 4856The entrance to the dialogue is free although places must be booked. To book please SMS keyword DIALOGUES, name and surname to 41936. SMSes are charged at R1.50/SMS. Free minutes do not apply. Booking line closes on 21st January 2014. Confirmation will be sent via SMS or RSVP to [email protected] of the panelistsProfessor Adam HabibProfessor Adam Habib is the Vice-Chancellor and Principal of the University of the Witwatersrand, and has served in this position as from the 1st of June 2013. He is an academic, an activist, an administrator, and a renowned political media commentator and columnist. A Professor of Political Science, Habib has more than 30 years of academic, research, institutional and administration expertise. His experience spans five universities and multiple local and international institutions, boards and task teams. His professional involvement in institutions has always been defined by three distinct engagements: the contest of ideas; their translation into actionable initiatives; and the building of institutions.Panyaza LesufiMr Panyaza Lesufi is a spokesman for the Department of Basic Education. He was born in Tembisa where he led a number of youth and student structures before getting arrested under the 1988 Apartheid Emergency Regulation for belonging to then banned organizations (ANC, MK and COSAS). Mr Lesufi matriculated at Vital Link Student Cooperation and went on to study Business Administration at the University of Natal in Durban where he was voted President of the SRC. He served in the Senate, Council and EXCO of the University and was awarded the Best SRC President ever by the University Natal as well as the Albert Luthuli Inter-Personal Relations Award. He served as Deputy Regional Secretary of the ANC at Ekurhuleni for 10 years before being elected to the Provincial Executive Committee (PEC) of the ANC Gauteng Province. Mr Lesufi also served as a board member of the Ellis Park Disaster Fund and Chairperson of the Matthew Goniwe School of Leadership.Rosie ChirongomaMs Rosie Chirongoma deals with Fundraising and Stakeholder Engagement at Symphonia. Ms Chirongoma’s interests include current affairs, creating awareness about the issues that affect African children and working with children in disadvantaged communities. Armed with a National Diploma in Architectural Technology, she lists strong leadership, good communication skills, being passionate and driven as well as willingness to take risks as her strengths. Ms Chirongoma has been actively involved in affecting change at a grassroots level in South Africa since 2007. Her list of community projects include: Big Brother Big Sister; the Paballo Ya Batho project which helps provide food, medical care and companionship to 500 destitute and homeless people living in the inner city of Johannesburg. In 2010, Ms Chirongoma spent her weekends looking after abandoned children at the TLC Children’s Home. She was recognised as a Nedbank Local Hero, in 2007, for providing 450 learners at New Generation School with learning resources and an environment conducive for learning in an informal settlement.Vuyo JackVuyo Jack grew up in Dube, Soweto where he entertained the idea of becoming a film director, before a family friend in merchant banking changed his mind. He then decided to study accounting which he sees as a critical basis for informed economic decision-making, and as a central measure of business performance. Since co-founding Empowerdex, Vuyo was appointed as a member of the dti’s BEE Task Team in 2003 and has advised both government departments and various corporates on matters of BEE. Vuyo has a weekly column in Sunday’s Business Report on issues surrounding BEE. In addition to his role as Executive Chairman of Empowerdex, Vuyo lectures Financial Accounting at Wits on a part-time basis.Dr Jeffrey MabelebeleDr Jeffrey Mabelebele joined Higher Education South Africa (HESA) in 2009 as a Director, Operations and Sector Support. Prior to this, he worked for the Human Sciences Research Council as a Researcher, Government Communication and Information System as a Director in the Project Office and the National Treasury’s Technical Assistance Unit as Director, Knowledge Management. His research interests include social values, identity and memory. Dr Mabelebele studied at the universities of Limpopo and UNISA. His work is published widely in accredited and peer reviewed journals.
Now that Web 2.0 is all the rage and wholewebsites are being devoted to it, I feel it’s time to get my due as being the first blogger in this space. Therefore from now on, I’d like you all to refer to me as the “Father of Web 2.0” whenever you link to me. Now, I realise that I am not actually the father of Web 2.0 – it was probably Tim O’Reilly or John Battelle who coined the term. But the Internet never lets the truth stand in the way of a good meme. So I see no reason why y’all shouldn’t start referring to me as The Father of Web 2.0… you know, around the blogosphere.Here are some examples of how you could slip this into your blogs:– “Richard MacManus, considered by many to be the Father of Web 2.0…”– “An interesting conversation has been brewing over at Read/Write Web, home of the Father of Web 2.0…”– “Richard MacManus, widely hailed as the Father of Web 2.0…”Indeed it seems Google already recognizes me as the Father of Web 2.0. Nevertheless I could use your help to spread the meme even further. 😉 richard macmanus A Web Developer’s New Best Friend is the AI Wai… Tags:#Trends#web Top Reasons to Go With Managed WordPress Hosting Related Posts Why Tech Companies Need Simpler Terms of Servic… 8 Best WordPress Hosting Solutions on the Market
Why Tech Companies Need Simpler Terms of Servic… Google Docs just got an amazing new feature called insert drawing. With it you can now create and insert drawings directly into your Google documents, spreadsheets and presentations. The drawing creation tool is easy to use, and supports snapping to grid points and full free-form or constrained rotation and sizing of individual lines, shapes, or groups of composite items. The best part is that the entire insert drawing module is rendered in-browser. It only takes a few minutes of playing with the new module to discover that it has a number of great things going for it: First, it has a huge number of pre-defined shapes for you to use. This is especially handy if you want to draw decision or flow charts, where you want to use the same shape over and over again, or if your drawing skills aren’t all that great, like ours (hint, a better example can be found here). Second, the tool supports snap-to-grid which makes lining up objects easy. And when you hold down shift while re-sizing or rotating a shape, you get a constrained action, which is good if you want to maintain a certain aspect ratio or orient something perfectly vertically or horizontally. Finally, you can group-select objects and resize or move them en-masse.These are all fairly basic features of any vector drawing program, such as the open source application Inkscape or Dia. The difference here is that this tool is rendered completely in-browser using SVG, or if that isn’t available, VML. So no longer do you have to go to a separate application, create your drawing, and insert it as a graphic. Now you can simply create it all online, and invite people to review and revise your drawing once it’s inserted. Related Posts phil glockner Tags:#Google#news#web Top Reasons to Go With Managed WordPress Hosting A Web Developer’s New Best Friend is the AI Wai… 8 Best WordPress Hosting Solutions on the Market
8 Best WordPress Hosting Solutions on the Market A marketing manager helping me to un-mix my metaphors once explained to me that, in terms of software, a “tool” becomes an “environment” when it collects too many tools. Salesforce.com is an example of a product that has clearly metamorphosed into an “environment,” with this week’s Dreamforce ’11 conference in San Francisco devoting much of its space and time to tools that are integrating with Salesforce.One prominent example is called Cloud Extend. Announced last April and officially launched this week by Active Endpoints, this tool endows Salesforce with workflow graphs called guidance trees, originally developed to assist in patient diagnosis, but with their sharp edges filed down to help agents maintain better customer relations.“The reason we named it ‘Cloud Extend,” remarks Eric Egertson, Active Endpoints’ VP for Business Development, in anticipation of my obvious question, “is because we’re letting people add workflow and process automation to cloud applications. “Cloud Extend for Salesforce.com lets sales ops managers, marketing managers, sales managers – non-technical users, but subject matter experts – to add process automation to Salesforce.com.”A stroll amongst the guidance treesThe typical SaaS application, Egertson argues, is fairly adequate at collecting, recording, and reporting data. The guidance tree metaphor lets a designer walk a sales rep through the typical steps for completing an everyday task or transaction. As he explains it, while his company was working with beta test partners, they pushed the company to move its workflow technology into Salesforce, away from this outside envelope. One such customer – consulting and training firm Bluewolf – came up with an example: a situation where it needs to schedule a meeting with multiple representatives of one of its clients, about an urgent business situation. At the Dreamforce conference this week, individuals who stop by the Cloud Extend booth (Moscone Center, booth #8), who provide their name, their company, and their picture, will find themselves populating the Salesforce database automatically via Cloud Extend, by way of LinkedIn. “We can poll social databases that are out there, and utilize that information as well as Salesforce Chatter,” says Taber. A Cloud Extend user can then use a guidance tree to trigger Salesforce Chatter messages on given conditions.Like Salesforce, Cloud Extend uses a flat $50 per-user, per-month subscription, without complicated licensing. It’s available through AppExchange.com. scott fulton Why Tech Companies Need Simpler Terms of Servic… A Web Developer’s New Best Friend is the AI Wai… Another example guidance tree walks a sales rep through the Salesforce.com pipeline, asking for a self-evaluation for each one. “In our company, we create opportunities based on how far along we are in the sales cycle,” explains Egertson. “If we say it’s a committed deal… we should have an agreement on business terms, we should have the technical [plan] ready, so we walk the rep through those questions; and if they haven’t properly qualified that deal, it would change the status and write the data back to Salesforce.com.“It puts the power of the decision of what to do next,” he tells RWW, “into the hands of the sales rep, who’s in the best position to know. But it reminds the sales reps to keep following, and to make suggestions about what to do.”An Active Endpoints white paper explains the guidance tree principle:Guidance trees are somewhat analogous to decision trees, but where decision trees are used to make a decision based on known data, guidance trees are for guiding a user through a set of questions, instructions and automated steps.The problem being solved does not have to perfectly match to a tree. The guidance tree can also have leaves of the tree that are jump steps, which can go to any other step in the guidance tree, whether it is up the tree or down another branch. The jump step is labeled with the step it will jump to and the designer can click on the label to go there. This means that the designer is always seeing a tree, but the underlying model may actually be a graph. This works because the designer thinks of the main paths as the ones represented by the branches of the tree. The jump steps are needed, but it is not important that they be shown as lines on the canvas, as that would muddle up the main paths.Working with a tree also makes it possible to reason about the problem as a tree. In a typical workflow or business process, there are only two levels at which it can be understood: the individual activity or the entire canvas. However, with a tree, every step in the tree can also serve as shorthand for all the steps that come after it in the tree. The design environment takes advantage of this. It is possible to cut, copy, paste and delete entire sub trees. Also, when one step specifies that a data field, such as a phone number, is required, then the system (and the designer) can treat it as a requirement that that phone number be present for all the steps that are down the tree from that step.Getting trees in front of the right facesAccording to data compiled by Active Endpoints and its partners, some 60% of leads never get more than one phone call, 80% never get more than two, 90% never more than three, 98% no more than four. Meanwhile, no-sales are typically registered on the first call. “The median number of calls it takes to make a sale is typically six.” Using that data, Cloud Extend and another partner, PSA Financial, coalesced to create what they call warmup plans – guidance trees that walk sales reps through the process of how to better optimize their phone time.Salesforce may not be the only environment in which you’ll find Cloud Extend in the coming months. Active Endpoints CEO Mark Taber – a veteran of IBM’s Application Infrastructure Middleware group – tells RWW he has plans to integrate the product into cloud-based ERP platform NetSuite and human resource platforms Taleo and Success Factors.“We want to enable anybody – a VP of sales, an operations person, an accounting manager, an HR manager – without any IT skills, with just ten minutes worth of training, to utilize these applications and get everyone else on board, and make sure their best practices are followed… When you’re looking at consultants, you no longer have to rely on the super-techie IT developers. Instead you’re working with business consultants who are focused on your industry and your type of company, who will share with you their guidance trees that would be applicable to you, so you can do the customization yourself. The consultants help you think through the process, rather than act as more IT staff.” says Taber.In fact, integrating a tool into a software/service platform may be the only way to work that tool into the modern enterprise. It’s like programming a TV show, in a way – you have to know where your audience is. Right now, the audience is tuned to Salesforce; and not only are users investing their time but businesses their dollars, on a utility-driven scale. These platforms need to reap benefits by the month, not by the year or after four years’ time. If a company makes a visible investment in what we used to call a third-party application, that’s perceived as a bet against the platform in which the company is already vested – a kind of hedge.This is especially interesting given Active Endpoints’ recent history. AE actually has a platform of its own, called ActiveVOS. It markets this as a business process management platform for IT, and its built-in screenflow development tool essentially is the guidance tree tool.“You really don’t want to be building third-party type applications and new UI for these users,” explains Taber. “If you’re in sales, you buy Salesforce.com because you love its UI. Everybody has his anchor application that he wants to stay inside of. So this capability should be able to be seamlessly integrated, look like it’s a native application, and keep it inside the same UI.” Salesforce makes it easy for Active Endpoints and others to do these things, he went on, by providing SOAP Web service APIs for their developers. Related Posts Top Reasons to Go With Managed WordPress Hosting Tags:#cloud#Products#saas
No # Cores Queues and execution resources PCI Express FSB – 1.6GHz 4 Gen 2 4 Xeon 5400 Discrete 2 x 6MB 45nm Intel VT + Enhancements L2 Cache Size – Did they double the number of cores?- No…same number of cores. Xeon 5500 DDR3 16 DDR2-FB-DIMM 3.4GHz 45nm – Did they make major changes to the CPU micro-architecture…like issuing and retiring many more instructions per clock? – No. Same 4-instruction per clock issue/retire capabilities. 4 4 Core Frequency Baseline Yes The various changes added up to “major” improvements in performance. Some of these changes are listed below…shown in comparison to the previous generation Xeon 5400 series platform which was/is no slouch. Even today, more than a year after its introduction, the Xeon 5400 was still was the highest performing 2-scoket platform on many benchmarks. That is until the Xeon 5500. N/A So how did they “double’ the performance? This is what truly amazes me. This team was able to essentially double the performance of the platform, without changing the most obvious (e.g. # of cores, CPU frequency, major micro-architecture changes, Si process technology or cache size). Instead, they made many changes and optimizations to the entire “platform” as well as some incremental enhancements to the processor micro-architecture (like deeper queues)…which collectively removed bottle necks in many different places and the results are nothing short of fantastic. 800, 1066, 1333MHz Deeper queues & more resources Process Technology In my last blog I talked about working on great projects which were “special”. Special in that everyone enjoyed coming to work, they worked well together, and part of the “magic” was we all knew we were working on something revolutionary. Well that special, revolutionary project is now available for all to see, and it is known as the Intel® Xeon® processor 5500 series and Intel Xeon® 5500 series chipset. 4 x 256MB Instructions per clock 533, 667, 800MHz Intel® Turbo-Boost Technology 18 Bus Connection No QPI – 6.4GT/s Memory Controller Feature Integrated What amazes me the most about this project/platform is the incredible leap in performance compared to its previous generation platform which was based on the Intel Xeon processor 5400 series. For a new generation platform, 20-30% improvements in performance is typical. And 50% vs. the previous generation platform is above normal, but the new Xeon 5500 series platform out performs the previous generation platform (Xeon 5400) by 2X or more on many benchmarks. That’s right…nearly twice the performance! (Click here for performance details.) Max # DIMMS (2 Socket Platform) – Did they use a new silicon process technology? – No…both use the same 45nm process. Memory Type L3 Cache Size 8MB Intel® Hyper-Threading Technology Yes So how did they achieve this monster leap in performance? – Did they double the core frequency? – No…in fact core frequency has gone down slightly. Gen 1 Memory Channels (2 Socket platform) 6 Virtualization Features Memory Frequency 3.2GHz 4 Intel VT – Did they increase cache size? – No…total L2 + L3 cache size actually went down (9MB vs 12MB). All I can say is wow! And all this performance comes in a lower platform power envelope than the Xeon 5400. The performance and power savings are a true testament to this team’s ability to work together and deliver a truly revolutionary product. Congratulations to the entire “Nehalem” team (aka Xeon 5500)! Click the link below to find out more about “Nehalem”. http://www.intel.com/products/processor/xeon5000/index.htm
The One Drop Foundation, Guy Laliberté’s international non-profit organization dedicated to providing access to safe water, is celebrating its 10-year anniversary by launching ‘10 Waves of One Drop.’This series of fundraising initiatives will offer unique celebrity experiences through Charity Network’s online auctions and sweepstakes to benefit One Drop, with half of the proceeds going to the celebrities’ charities of choice.“10 Waves of One Drop is a creative and atypical celebration of the power of generosity,” Guy Laliberté said. “Since One Drop’s inception, we were lucky enough to count on the support of dozens of celebrities who share my desire to change the world in a bold and positive way. For our 10 years, I have asked them to join us with their charity of choice, so that this online celebration can generate an impact not just for One Drop, but for 10 other extraordinarily important causes.”In just a decade, One Drop has raised more than $120 million to help improve access to safe water, and is on the way of helping transform the lives of more than 1 million people in some of the world’s most vulnerable communities.This new fundraising initiative will be promoted through the Charity Network and its two digital fundraising platforms, Charitybuzz and Prizeo. From November 2017 throughout 2018, uniquely-tailored experiences will be launched every month featuring celebrities from all walks of life such as Shakira (supporting Pies Descalzos), Rafael Nadal (Rafa Nadal Foundation), Michael Douglas (One Drop Foundation), Jack Nicklaus (Nicklaus Children’s Health Care Foundation), and Ferran Adrià (elBulli Foundation).The first 10 Waves of One Drop experience is launching on Charitybuzz with legendary elBulli chef Ferran Adrià. It offers the opportunity to have the world-renowned chef reinvent your favorite childhood dish with an exclusive tasting in his company at the newly opened Enigma Atelier in Barcelona.“I am truly happy to be part of this philanthropic celebration and to offer an original experience that will raise funds to help people without access to safe water around the world,” said Adrià.To learn more about 10 Waves of One Drop and bid on the first auction lot with Ferran Adrià, click here.