Editor’s note: We offer our long-term sponsors the opportunity to write posts and tell their story. These posts are clearly marked as written by sponsors, but we also want them to be useful and interesting to our readers. We hope you like the posts and we encourage you to support our sponsors by trying out their products.1. Loving a cloud before determining the problem you are trying to solve. Just move to the cloud. It’s easy right? As they say on TV… “To the cloud!” The fact is, moving to the cloud as an SMB can be both advantageous and overwhelming. Adopting cloud computing technology within your organization should only be done if it solves an immediate problem not because of popularity trends. SMB customer’s of Skytap are interested in cost savings but more specifically they are looking for the ability to create virtual environments, run applications without code changes or rewrites and the ability to collaborate and share using a simple self-service web user interface. A cloud that just offers pure infrastructure will make it hard for functional users to accomplish business tasks without a UI framework to guide the workflow.SMB Cloud Tip:Determine the problem you are trying to solve. Moving to the cloud should make sense for all specific requirements of your business.2. Spending dev test resources getting your apps to run in the cloud.“I don’t need IT anymore. I have a cloud, right?” Wrong… in fact very wrong! Moving to the cloud doesn’t mean washing your hands of IT policies.Some clouds won’t look so white and fluffy once you realize that you have to rewrite your code or applications to work on that cloud provider’s platform. Assuming that you can just sign up for any cloud service and then experience nirvana is a very real and painful lesson that businesses of all sizes have experienced. Do yourself a favor and learn from the mistakes of others. Most users are already familiar with the business and technical applications they use today, whether its email, training or sales demo applications. clouds that power these applications without any changes will deliver immediate value. At Skytap, we have learned firsthand that SMB users won’t always wait for IT to build or rewrite applications for use in the cloud.SMB Cloud Tip:Running your existing applications without changes is a huge factor in determining if a cloud is easy to use and cost effective, especially for SMB’s.3. Ignoring IT policies, security and getting enamored with self-service.“I don’t need IT anymore. I have a cloud, right?” Wrong… in fact very wrong! Moving to the cloud doesn’t mean washing your hands of IT policies. You cannot assume that a cloud will manage itself. You must make sure that your selected provider allows the ability to enforce IT policies with cost controls and charge-back billing to internal groups. The solution should have the capability to ensure quotas can be applied to individuals and departments to cap usage. Most importantly the solution should enable IT policies to be enforced globally, such as approved subnet ranges for virtual data centers and the ability to prevent assignment of public IP addresses to virtual machines.SMB Cloud Tip:Your IT team should have complete visibility and control over anything and everything you do with the cloud. 4. Assuming the cloud will manage itself and not watching the meter run.It is a common misconception that moving to the cloud will help your business realize immediate cost savings. The reality is that the cloud can prove to be a “free for all” system if not carefully managed. Most infrastructure providers offer no advanced and easy to use cost control capabilities such as auto-suspending resources when not in use to save cloud usage costs. This often times can lead to cloud sticker shock. Solutions like Skytap Cloud can measure the value on a per user basis as well as offer distinct pricing for different usage levels. Having a solution like this in place can help you avoid paying the same fee for light and heavy users within your organization.SMB Cloud Tip:Avoid spiraling cloud costs by choosing a provider that enables you to automatically manage usage.5. Select a cloud that is not user friendly and a provider that offers no enterprise level supportOne of the most painful things is not being able to get responsive support when you need help, especially when your business is on the line. Success in new technologies, such as cloud computing, requires responsive support. Determine if you can call your cloud provider directly or if you must work through an online form or email inquiry to troubleshoot an issue or resolve an open question. Also ensure that the support team will respond to your inquiries within a few hours versus a day or more. Lastly, avoid long-term contracts with providers, especially if you are just getting started with the cloud. Stick to providers like Skytap who won’t lock you into long-term contracts.SMB Cloud Tip:There are several cloud options. Choose a solution that is easy to use and a provider that will support you well.About the Author: Nate Odell is Director of Marketing at Skytap, a leading provider of cloud automation solutions. He is an industry veteran with a successful 11-year career in B2B marketing for Startups and SMB’s. Follow Nate on Twitter @N8Odell or @Skytap.Photo by notsogoodphotography rww sponsor 1 Related Posts Why Tech Companies Need Simpler Terms of Servic… Tags:#Sponsors#web 8 Best WordPress Hosting Solutions on the Market Top Reasons to Go With Managed WordPress Hosting A Web Developer’s New Best Friend is the AI Wai…
Afghan boxer Hamid Rahimi won the first professional bout in his war-torn country late on Tuesday night, stopping Said Mbelwa of Tanzania in the seventh round.Rahimi, based in Germany, said his aim in organising “Afghanistan Fight 4 Peace” was to bring the people of his country together after decades of warfare.Several hundred spectators watched the bout live in a large hall in the capital, cheering wildly when Rahimi won the vacant WBO intercontinental middleweight title. Mbelwa was unable to continue because of a shoulder injury.Mbelwa showboated in the early rounds but retreated to his corner holding his shoulder in the seventh after Rahimi delivered four fierce rights in quick succession.Rahimi’s supporters carried a banner reading “We Want Peace” during the match. Spectators crowded into the ring after the match to congratulate both fighters.”I am very happy because this victory belongs to all Afghans,” Rahimi said. The boxer has lived in Germany since childhood when his parents moved there in 1992. He has won 22 of his 23 pro fights.Organisers said the two men made history by staging the first professional match in Afghanistan, but amateur boxing is popular in Afghanistan and the nation’s first Olympic boxer, flyweight Ajmal Faisal, took part in the London Games this year.The fight was the latest of several sporting events which authorities hope will help unite the nation. Earlier this month, Afghanistan’s new football league held its first national championship at Kabul’s renovated Ghazi Stadium.In September, the country’s cricket team participated in the World Twenty20 tournament in Sri Lanka, where they were eliminated after losing to India and England.advertisement
To embed this piece of audio in your site, please use this code: Listen Houston, like many communities across the country, has a serious opioid epidemic, experts say, but there isn’t sufficient data on the extent of the problem here, according to Dr. James Langabeer, professor of biomedical informatics, emergency medicine, and public health at UTHealth. In the ten years between 2005 and 2015, the number of opioid-related deaths in Texas doubled. The number jumped from less than 2,000 in 2005 to around 4,000 by 2015, according to the National Center for Health Statistics.In the map below, you can click on each county to see the number of opioid-related deaths and how it compares to the Texas average and national average.Dr. Langabeer said hopes the lack of enough specific data for Houston will change with a new intervention program that focuses specifically on people who overdose on opioids. It’s called the Houston Emergency Opioid Engagement System (HEROES). In the audio above, Dr. Langabeer discusses the issues with Houston Matters host Craig Cohen.If someone you know is struggling with substance abuse, Dr. Langabeer recommends contacting the Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline at 800-662-HELP. 00:00 /19:50 X Share
Lead in ‘tap-water’ in ancient Rome up to 100 times more than local spring waters © 2016 Phys.org Painting by Joseph Mallord William Turner (between 1817 and 1820) Vesuvius in Eruption, watercolor. Credit: Yale Center for British Art. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. To bring water to cities, the early Romans built vast waterworks systems using aqueducts and lead pipes—the water that was delivered, unbeknownst to the Romans, contained some amount of lead which in addition to making its way into the bodies of those who drank it, also made it into the ground or other water systems via sewage. In the case of the cities and towns around Naples, sewage was piped to certain locations where it was dumped directly into the harbor which resulted in sediment build up, some of which contained lead particles. Modern researches studying sediment cores can analyze the different layers of sediment and note the different amounts of lead in it and the differences in the types of lead, which can offer information about the amount of water brought into the system, and in this case, the changes to the system that came about.In studying their sediment core samples taken from the harbor, the researchers found marked changes in lead particles immediately after Mount Vesuvius erupted, likely, they suggest, because the eruption either clogged pipes, or destroyed some of the water delivery system. Differences in isotopic composition, they noted suggested lead pipes had been brought in from different locations to replace those that had been damaged. They noted also that the original water system had remained in place for approximately 15 years after the eruption before it was finally replaced. The team also found evidence of a continually expanding water system until approximately the fifth century, when natural disasters and invasions led to a sharp decline in upgrades.The researchers suggest their techniques could be used in other parts of the world, not just the area once covered by the Roman Empire—to better understand population changes, or other events that had an impact on the people that lived there. More information: Hugo Delile et al. A lead isotope perspective on urban development in ancient Naples, Proceedings of the National Academy of Sciences (2016). DOI: 10.1073/pnas.1600893113AbstractThe influence of a sophisticated water distribution system on urban development in Roman times is tested against the impact of Vesuvius volcanic activity, in particular the great eruption of AD 79, on all of the ancient cities of the Bay of Naples (Neapolis). Written accounts on urbanization outside of Rome are scarce and the archaeological record sketchy, especially during the tumultuous fifth and sixth centuries AD when Neapolis became the dominant city in the region. Here we show that isotopic ratios of lead measured on a well-dated sedimentary sequence from Neapolis’ harbor covering the first six centuries CE have recorded how the AD 79 eruption was followed by a complete overhaul of Neapolis’ water supply network. The Pb isotopic signatures of the sediments further reveal that the previously steady growth of Neapolis’ water distribution system ceased during the collapse of the fifth century AD, although vital repairs to this critical infrastructure were still carried out in the aftermath of invasions and volcanic eruptions. Journal information: Proceedings of the National Academy of Sciences Citation: Sediments in Gulf of Naples reveal impact on Roman water distribution after Vesuvius eruption (2016, May 17) retrieved 18 August 2019 from https://phys.org/news/2016-05-sediments-gulf-naples-reveal-impact.html Explore further (Phys.org)—A team of researchers with members from France, the U.S., the U.K. and Italy has found evidence of disruptions to the water delivery system in the area around Naples after the eruption of Mount Vesuvius in AD 79. In their paper published in Proceedings of the National Academy of Sciences, the team describes their testing of sediment cores taken from the harbor at Naples, what they found and what their study has revealed about the history of the area.
Journal information: Nature Physics (Phys.org)—A team of researchers with the University of California, MIT, Lawrence Berkeley National Laboratory and the National Institute for Materials Science in Japan has created images of relativistic electrons trapped in graphene quantum dots. In their paper published in the journal Nature Physics the team describes how they achieved this feat and where they plan to take their work in the future. Researchers find electron chirality in graphene impacts current flow As the many unique properties of graphene continue to unfold, scientists seek new ways to harness and eventually make use of them. One such use might be to control electrons to allow their use in nano-scaled devices, which could also inadvertently lead to a deeper understanding of Dirac fermions. In this new effort, the researchers have made progress in that area by devising a means for capturing and holding electrons and for creating images of the result.Obtaining images of electron waveforms has thus far been particularly difficult—virtually all existing methods have resulted in too many defects. To get around such problems, the researchers took another approach to capturing the electrons. They first created circular p-n junctions by sending voltage through the tip of a scanning tunneling microscope down to a graphene sample below. At the same time, they also applied voltage to a slab of silicon underneath the piece of graphene, which was kept separated by a layer of silicon-oxide and a flake of boron nitride. Doing so caused defects in the boron nitride to ionize, resulting in charges migrating to the graphene.To create images of those charges, the researchers placed a scanning tunneling microscope tip just above the surface of the quantum dot, which allowed for measuring the tunneling current—moving the tip to different locations allowed for taking multiple measurements which when taken together allowed for creating an image.The new method, the team suggests, could be used as the basis for developing systems that are more complicated, such as those with multiple quantum dots. They next plan to investigate using their technique with bilayer graphene samples, which hold far more Dirac charge carriers to see if they reflect when they impinge on the p-n junction barrier in expected ways. The STM tip spatially probes Dirac fermion wavefunctions in the presence of the p–n junction. Credit: (c) Nature Physics (2016). DOI: 10.1038/nphys3805 More information: Juwon Lee et al. Imaging electrostatically confined Dirac fermions in graphene quantum dots, Nature Physics (2016). DOI: 10.1038/nphys3805AbstractElectrostatic confinement of charge carriers in graphene is governed by Klein tunnelling, a relativistic quantum process in which particle–hole transmutation leads to unusual anisotropic transmission at p–n junction boundaries. Reflection and transmission at these boundaries affect the quantum interference of electronic waves, enabling the formation of novel quasi-bound states. Here we report the use of scanning tunnelling microscopy to map the electronic structure of Dirac fermions confined in quantum dots defined by circular graphene p–n junctions. The quantum dots were fabricated using a technique involving local manipulation of defect charge within the insulating substrate beneath a graphene monolayer. Inside such graphene quantum dots we observe resonances due to quasi-bound states and directly visualize the quantum interference patterns arising from these states. Outside the quantum dots Dirac fermions exhibit Friedel oscillation-like behaviour. Bolstered by a theoretical model describing relativistic particles in a harmonic oscillator potential, our findings yield insights into the spatial behaviour of electrostatically confined Dirac fermions. © 2016 Phys.org Explore further Citation: Images made of relativistic electrons trapped in graphene quantum dots (2016, July 15) retrieved 18 August 2019 from https://phys.org/news/2016-07-images-relativistic-electrons-graphene-quantum.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.