A visualization of a supercomputer simulation of merging black holes sending out gravitational waves. Credit: NASA/C. Henze A trio of students from the University of Glasgow have developed a sophisticated artificial intelligence which could underpin the next phase of gravitational wave astronomy. In a new paper published today in the journal Physical Review Letters, the researchers discuss how they used artificial intelligence tools to train an AI ‘brain’ to search for gravitational wave signals. Gravitational waves, ripples in spacetime caused by massive astronomical events, were first hypothesised by Albert Einstein in 1915. It took another century before the Laser Interferometry Gravitational-Wave Observatory (LIGO) detectors in the United States first picked up the very faint signals from the collision of binary black holes. Since that historic first detection in September 2015, the Advanced LIGO and European VIRGO detectors have picked up numerous signals from other binary black holes and one from the collision of binary neutron stars. Currently, gravitational wave signals are picked from the background noise of the detectors using a technique known as matched filtering, which measures the outputs from the detectors against a bank of template waveforms. Signals which match the shape of a template waveform are then examined more closely to determine whether they represent a genuine gravitational wave detection. However, the process requires a great deal of computing power. As the detectors are upgraded and their sensitivity to gravitational wave signals increases, astronomers expect significantly more detections to be made during each observing run, bringing with it an accompanying increase in required computing power. University of Glasgow Physics and Astronomy postgraduate students Hunter Gabbard and...
React Native allows you to build iOS and Android apps in JavaScript using React and Relay‘s declarative programming model. This leads to more concise, easier-to-understand code; fast iteration without a compile cycle; and easy sharing of code across multiple platforms. You can ship faster and focus on details that really matter, making your app look and feel fantastic. Optimizing performance is a big part of this. Here is the story of how we made React Native app startup twice as fast. Why the hurry? With an app that runs faster, content loads quickly, which means people get more time to interact with it, and smooth animations make the app enjoyable to use. In emerging markets, where 2011 class phones on 2G networks are the majority, a focus on performance can make the difference between an app that is usable and one that isn’t. Since releasing React Native on iOS and on Android, we have been improving list view scrolling performance, memory efficiency, UI responsiveness, and app startup time. Startup sets the first impression of an app and stresses all parts of the framework, so it is the most rewarding and challenging problem to tackle. Always be measuring We converted the Events Dashboard feature in the Facebook for iOS app to React Native (navigate to the More tab in the app and tap Events to see it). This was the perfect candidate for testing performance because the native product was already highly optimized and provided a typical “interactive list of items” experience. Next, we set up an automated CT-Scan performance test that helped us navigate to the rightmost tab, which...
Since the past recent years, mobile apps have been changed constantly. And because of their enormous popularity and usefulness, they serve to be a significant opportunity for appreneurs as well as enterprises. Smartphones have fully dominated the life of people. There is hardly any individual in the world who is unaware of the features and uses of smartphones. People spend maximum hours of their day using smartphone apps and features like listening to music, reading news, sending official reports and a lot more. Among the users of a mobile phone, the maximum users are youngsters below the age of 30 who use mobile phones for doing texting and calling. With the increasing usage and the need for mobile phones also increases the development of mobile applications. The mobile app development has forced the companies to think of better and innovative ways to meet the growing demand for smartphone users. Top Trends in Mobile App Development AMP will change the web scenario: Google’s AMP is under process in the current year. With this project, Google will bring a separate index on the mobile web. With this, there will be a great change and advancement in the development of a mobile application. This results in faster loading on smartphones and a reduction in the bouncing rates. Also, it will offer better and improved visibility, thus increases the number of visitors. Thus, with the AMP feature, there will be trending changes in both web application and SEO standpoint. AR and VR will play a more significant role: You must be aware of VR and AR, the top two trending technologies that are...
The Ministry of Defence (MoD) has formally “stood up” a dedicated cyber security regiment tasked with protecting the UK’s defence networks both at home and on overseas operations. Based at Blandford in Dorset, home of the Royal Signals, the 13th Signal Regiment will be tasked with providing “digital armour” around armed forces personnel operating overseas to give commanders and soldiers alike the ability to operate with confidence in their IT and comms systems while under fire. The MoD said that that both adversaries and hostile actors were already creating a “cyber frontline” alongside the more traditional domains of land, sea and air, and as the character of warfare evolves, digital and cyber capabilities will be increasingly relied on to ensure the UK’s national security. “This is a step-change in the modernisation of the UK armed forces for information warfare. Cyber attacks are every bit as deadly as those faced on the physical battlefield, so we must prepare to defend ourselves from all those who would do us harm and 13th Signal Regiment is a vital addition to that defence,” said defence secretary Ben Wallace. Sitting within the (UK) Signal Brigade, under the command of 6th (UK) Division, the 250-strong regiment forms the core of the new Army Cyber Information Security Operations Centre – although it will also work on behalf of the Royal Navy and the Royal Air Force – and will provide specialist technical support for a hub to test and implement next-generation information capabilities. It unifies a number of existing cyber functions from across the Army, with personnel from 15 different units joining in the first intake,...
I’m jolted awake to the sound of the tones going off in my room. I knew that I hadn’t been asleep long because we’d already run a late call and it was still dark outside. Running to the truck, I hear the address come out over the radio for a medical call. It’s the third time this week we’ve been called to the same house. My driving is on autopilot because I know the city streets like the back of my hand. Not only had I worked in the same fire department for the last 6 years, but I’d also grown up in this city. On this and many other times I’d been woken up in the middle of the night, I’m starting to realize that I’m losing my passion for the job I once loved. How I Got Into Firefighting At 19 years old I was working in fast food, and I knew I needed to do something more with my life. I wasn’t really keen on going to college just yet, so I started looking for jobs that only needed vocational school. Knowing that I wouldn’t be a very good police officer, I signed up for fire school. During fire school I found the only way to get a job as a firefighter in Florida was to also be an EMT in order to run medical calls, so I enrolled in there as well. While I was in school, one of the instructors I met told me their department was taking on volunteers. Six years in the field, a year of paramedic school, and many sleepless nights...
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