Types of Radioactive Decay and Their Effect on the Nucleus Video - Lesson and Example Introduction What images come to mind when you hear the words 'nuclear radiation'? Most likely these words conjure up a graphic scene of three-eyed fish and glowing green ooze. Nuclear Radiation Did you know that less than 1% of all the radiation you are exposed to comes from the nuclear industry? What exactly is radiation, and how damaging is it? Nuclear Notation As you may recall, the two particles that are found in the nucleus are the protons and neutrons. Particles in the nucleus can also be represented by this nuclear notation. Alpha Decay Now let's move on to the most common types of nuclear decay. Alpha particles are relatively heavy and quite slow-moving. Beta Decay Next up is beta decay or beta-minus decay. Gamma Decay Finally, we have gamma decay. Blocking a gamma ray is a lot more difficult. Lesson Summary As I previously mentioned, there is no way to escape radiation completely, and it wouldn't make any sense to walk around in lead clothing.
Cómo confeccionar un currículum atractivo con LinkedIn Hoy día, son muchas las industrias que usan LinkedIn como una de las principales fuentes de oportunidades laborales. Esto quiere decir que buscan potenciales empleados a través de la red social orientada hacia los negocios, y lentamente, el paradigma está virando hacia una presentación completamente digitalizada. Otros servicios, como About.me, nos permiten crear una tarjeta de presentación completamente virtual. Quizás estamos yendo demasiado lejos cuando nos referimos a los early adopters de LinkedIn, una plataforma que está presente desde 2002. Podemos crear un currículum atractivo con LinkedIn en unos segundos. Vale la pena aclarar, quizás por tranquilidad, que esta plataforma para crear un currículum atractivo con LinkedIn fue desarrollada por LinkedIn Labs, una serie de proyectos experimentales desarrollados por los ingenieros de la plataforma y mejorados gracias al feedback de los usuarios. En la barra lateral encontraremos todos los templates que se encuentran disponibles.
Internet Traffic is now 51% Non-Human So you thought the Internet was made by and for people? Think again. A study by Incapsula, a provider of cloud-based security for web sites (mind you where this data comes from), concludes that 51% of all Internet traffic is generated by non-human sources such as hacking software, scrapers and automated spam mechanisms. While 20% of the 51% non-human traffic is’ good’, the 31% majority of this non-human traffic is potentially malicious. The study is based on data collected from 1,000 websites that utilize Incapsula’s services, and it determined that just 49% of Web traffic is human browsing. 20% is benign non-human search engine traffic, but 31% of all Internet traffic is tied to malicious activities. 19% is from ” ‘spies’ collecting competitive intelligence,” 5% is from automated hacking tools seeking out vulnerabilities, 5% is from scrapers and 2% is from content spammers. Presumably these numbers will only rise. Thanks Bruce.
Ciencias para el mundo contemporáneo bitelia : Convierte tu perfil de LinkedIn... Future Scenarios What Will The Internet Look Like In 10 Years? The Internet Society engaged in a scenario planning exercise to reveal plausible courses of events that could impact the health of the Internet in the future. While obviously not intended to be a definitive overview of the landscape or all potential issues, we believe the results are interesting and, we hope, thought-provoking. We are sharing them in the hope that they will inspire thought about possibilities for the future development of the Internet, and involvement in helping to make that happen in the best possible way. Future Scenario Resources Besides viewing the video scenarios below, you can: Common Pool Scenario Link to transcript of video Positive “generative” and “distributed & decentralised” properties. Boutique Networks Scenario Link to transcript of video Moats and Drawbridges Scenario Link to transcript of video Porous Garden Scenario Link to transcript of video
Ciencia Sin Fronteras Con el fin de ilustrar el recorrido que hemos tenido a los largo de estos años, lo invitamos a que revise algunos de los reconocimientos recibidos por nuestro programa o por su director Julián D. Amorín M. Q.B., Doctor Demo, y algunos eventos en los que hemos participado. Hemos realizado más de 500 presentaciones del Show Científico del Dr. Demo entre escuelas, colegios y eventos particulares. Nuestros dos grupos asistentes han realizado mas de 200 presentaciones. Reconocimientos 30 cursos universitarios, online y gratuitos que inician la próxima semana Siguiendo con las propuestas en cursos universitarios online para este mes de noviembre, sumamos 30 nuevas opciones desde la plataforma Open2Study. Todos los cursos que vamos a mencionar iniciar el 18 de noviembre. Si nos interesa conocer más información de alguno de ellos solo tenemos que dirigirnos al enlace correspondiente. Para aquellos interesados en su formación docente, hay una serie de cursos interesantes a tener en cuenta: Becoming a Confident Trainer (TAFE SA) Cómo desarrollar habilidades que contribuyan a un entorno de aprendizaje productivo. Early Childhood Education (Gowrie Victoria) Un recorrido por las diferentes etapas de desarrollo en los niños en sus primeros años. Education in a Changing World (Open2Study) Analiza el papel social de la educación, así como la evolución del currículo educativo. Teaching Adult Learners (TAFE) Cómo desarrollar un ambiente de aprendizaje ameno y edificante. Si buscamos opciones relacionadas con la Salud encontraremos estos cursos:
SIN Graph - Countdown to SIN Logarithmic Chart Countdown to Singularity, Events expressed as Time before Present (Years) on the X axis and Time to Next Event (Years) on the Y axis, Logarithmic Plot Page 17, Linear Plot page 18. Source: M.T. Rosing, "13C-Depleted carbon microparticles in >3700-Ma sea-floor sedimentary rocks from west greenland," Science 283.5402 (January 29, 1999): 674-6, See also H. Furnes et al., "Early life recorded in archean pillow lavas," Science 304.5670 (April 23, 2004):578-81; M.T. Rosing, "Early Archaean oxygenic photosynthesis - The observational approach," Geophysical Research Abstracts 7.11202 (2005); W. Altermann and J. B. Y Kimura, "Examining time trends in the Oldowan technology at Beds I and II, Olduvai Gorge," Journal of Human Evolution 43.3 (September 2002):291-321. A.M. Dennis O'Neil, " Evolution of Modern Humans: Early Archaic Homo sapiens," T.D. D. O. H. Cuneiform Digital Library Initiative E.
How Doctors Die By Ken Murray, MD Years ago, Charlie, a highly respected orthopedist and a mentor of mine, found a lump in his stomach. He had a surgeon explore the area, and the diagnosis was pancreatic cancer. This surgeon was one of the best in the country. It’s not a frequent topic of discussion, but doctors die, too. Of course, doctors don’t want to die; they want to live. To administer medical care that makes people suffer is anguishing. How has it come to this—that doctors administer so much care that they wouldn’t want for themselves? To see how patients play a role, imagine a scenario in which someone has lost consciousness and been admitted to an emergency room. The above scenario is a common one. But of course it’s not just patients making these things happen. Some doctors are stronger communicators than others, and some doctors are more adamant, but the pressures they all face are similar. Should I have been more forceful at times? But doctors still don’t over-treat themselves.
How to create iMovie 10 trailers In our last lesson we looked at building a straightforward iMovie project—the kind of movie you might throw together of the family gathered over a holiday meal or, in warmer times of the year, frolicking in the gush of an untended hydrant. Such movies allow you to piece together as much material as you like, which can be great if you’re the creator of Star Wars 4 – 6 Legomania! and less terrific if you’re the poor sap subjected to 90 full minutes of Baby’s First Bath! Fortunately, iMovie 10 also offers you a way to create videos that are necessarily limited to a running time of just over or under a minute. Previewing the trailers To create a trailer choose File > New Trailer, press Command-Shift-N, or click the Create button in iMovie’s toolbar, and choose Trailer from the menu that appears. Select any template, and a Play button appears over its thumbnail. Below each template is a Cast Members entry, which gives you an idea of how many “main characters” the template supports.
Change of Shift: Vol. 5, Number 5 // Emergiblog September 2, 2010, 4:42 pm Welcome to Change of Shift! Boy, that was a fast two weeks! For those who don’t follow me on Facebook, I’m a little slow on the computer front as I am recovering from Lasik – please excuse any typos that have made it through my blurry proof-read. Also – I have discount codes for BlogWorld/New Media Expo 10, so if you are planning on attending the second annual Social Health track (and you should!!) Time to dive in…. Editor’s pick: Haste posted at New Nurse Insanity: Fundus Chop!. The Muse, RN has heard “…why isn’t she a doctor?” My heart goes out to Keith at Digital Doorway. Will is finishing nursing school and celebrating his blogiversary. The nursing profession is “graying”, but are you even remotely ready to retire? Welcome new nurse blogger Joni to Change of Shift! Talk about a segue made in heaven! Nurse Teeny has been through the health-system wringer, and wonders what it must be like for those who are not familiar with the system.