Blockchain oracles resolve the issue of delivering external data to the blockchain – but we still need to know which of them we can trust.

Styles, by default, in wpf, in Avalonia, are neutral, and far from always suitable for the tasks we need. In this article, I would like to talk about the basics of working with styles and show a couple of interesting examples.

Have you ever needed to debug or profile an executable (.exe file) that you don’t have source for or can’t build? Then the least known Visual Studio project type, the EXE project, is for you!

In Visual Studio you can open any EXE as a ‘project’. Just go to File->Open->Project/Solution and browse to the .exe file. Like you would if it was a .sln file. Visual Studio will then open that EXE as a project. This feature has been around for a long time. It works on all currently supported Visual Studio versions and the docs for it are at  ‘Debug an app that isn’t part of a Visual Studio solution‘.

 

Cascadia Code is finally here! You can install it directly from the GitHub repository’s releases page or automatically receive it in the next update of Windows Terminal.

Wait, what’s Cascadia Code?

Cascadia Code was announced this past May at Microsoft’s Build event. It is the latest monospaced font shipped from Microsoft and provides a fresh experience for command line experiences and code editors. Cascadia Code was developed hand-in-hand with the new Windows Terminal application. This font is most recommended to be used with terminal applications and text editors such as Visual Studio and Visual Studio Code.

As per the latest stats reveal, there are more than 2.7 billion smartphone users globally and over 2.8 million apps on Google Play Store.

Now, it's a fact that the number of mobile users is increasing at outstanding speed, and so is the name of apps on Google Play Store.

But does all the apps success to make a difference? No, but just a handful of having stood out and gain popularity.

For instance, there are several games on the Play Store, but why only Candy Crush, Subway Surfers and Angry Birds topped the charts while the other games struggle for even ten downloads.

The trick is to provide the players with what they want, and in turn, the response for such apps is tremendous.

However, at this point, when the competition is very high, it's challenging to come up with something new that can stand out from the crowd.

It's crucial to create a brand name so that people can talk about it.

Setting up Linux on the development board like SocKit with a double-core ARM Cortex A9 is not rocket science. A manufacturer of the board supports the ready-to-use image, appropriate for installing on SD card or another media. But what if you are craving to touch bare metal, approaching a neck-breaking speed of code not restrained by an OS core? Well, it is possible, but not so easy and obvious. In this short essay, I'll give you step-by-step instruction, how to build and run you first bare-metal application on Cyclone V SoC, that uses ARM Cortex A9 core of the HPS subsystem of the SoC.

You need to have the development board with Intel (Altera) Cyclone V SoC. I used SoCKit board:

Many programmers struggle when using formal methods to solve problems within their programs, as those methods, while effective, can be unreasonably complex. To understand why this happens, let’s use the model checking method to solve a relatively easy puzzle:

Conditions

You’re in a hallway with seven doors on one side leading to seven rooms. A cat is hiding in one of these rooms. Your task is to catch the cat. Opening a door takes one step. If you guess the correct door, you catch the cat. If you do not guess the correct door, the cat runs to the next room.

This week we issue a really huge selection of all the essential news you might have missed on Front-end development. Make sure to check the latest updates on CSS, HTML, and JavaScript.

The Agile methodology consists of various mandatory concepts and artifacts. A product backlog is one of them. This is actually a set of requirements received from the business and formulated in the form of development tasks.

Backlog grooming is not a magic wand; it's a comprehensive activity aimed to ensure that all the tasks are always in clear order. How can the grooming process be improved? And what are the special things about it?

Manual lung segmentation takes about 10 minutes and it requires a certain skill to get the same high-quality result as with automatic segmentation. Automatic segmentation takes about 15 seconds.

I assumed that without a neural network it would be possible to get an accuracy of no more than 70%. I also assumed, that morphological operations are only the preparation of an image for more complex algorithms. But as a result of processing of those, although few, 40 samples of tomographic data on hand, the algorithm segmented the lungs without errors. Moreover, after testing in the first five cases, the algorithm didn’t change significantly and correctly worked on the other 35 studies without changing the settings.

Also, neural networks have a disadvantage — for their training we need hundreds of training samples of lungs, which need to be marked up manually.

Roslyn, the .NET compiler platform, helps you catch bugs even before you run your code. One example is Roslyn’s spellcheck analyzer that is built into Visual Studio. Let’s say you are creating a static method and misspelled the word static as statc. You will be able to see this spelling error before you run your code because Roslyn can produce warnings in your code as you type even before you’ve finished the line. In other words, you don’t have to build your code to find out that you made a mistake.



Roslyn analyzers can also surface an automatic code fix through the Visual Studio light bulb icon that allows you to fix your code immediately.

C++20 adds a new operator, affectionately dubbed the «spaceship» operator: <=>. There was a post awhile back by our very own Simon Brand detailing some information regarding this new operator along with some conceptual information about what it is and does. The goal of this post is to explore some concrete applications of this strange new operator and its associated counterpart, the operator== (yes it has been changed, for the better!), all while providing some guidelines for its use in everyday code.

«It's a dangerous business, Frodo, going out your door. You step onto the road, and if you don't keep your feet, there's no knowing where you might be swept off to.»

― J.R.R. Tolkien, The Lord of the Rings

Europe’s roads are the safest in the world. Current figures show that there are 50 fatalities per one million inhabitants, compared to the global figure of 174 deaths per million. Despite this, each loss remains a tragedy. In 2017, 25,300 people lost their lives on European roads.

The cause of these accidents can vary from human error and weather conditions, to damaged structures and surfaces. While some things are beyond the realms of control, road and bridge conditions are a variable which can be governed.

As soon as a road is paved, a combination of traffic and weather conditions begin to degrade and erode the surface. Undetected cracks, abrasions or defects can quickly lead to bigger problems, such as costly repairs, major traffic delays, and in the worst cases, unsafe condition. These problems are also shared by bridges, particularly when concrete is critical in maintaining the integrity of the structure. The earlier faults are detected, the sooner they can be addressed, saving time and money, while minimising disruption. Ultimately, this helps ensure that the roads themselves are safer for those travelling on them.

The detection of these faults, however, can be very difficult to carry out manually, especially as early-forming cracks are hard to spot with the naked eye. Predicting where faults are likely to occur ahead of time so that appropriate measures can be taken in advance also possess a massive challenge. Thankfully, technology is here to help.

We are pleased to announce that the June 2019 release of the Python Extension for Visual Studio Code is now available. You can download the Python extension from the Marketplace, or install it directly from the extension gallery in Visual Studio Code. If you already have the Python extension installed, you can also get the latest update by restarting Visual Studio Code. You can learn more about Python support in Visual Studio Code in the documentation.

In this release we made improvements that are listed in our changelog, closing a total of 70 issues including a plot viewer with the Python Interactive window, parallel tests with pytest, and indentation of run selection in the terminal.

This week we issue a really huge selection of all the essential news you might have missed on Front-end development. Make sure to check the latest updates on CSS, HTML, and JavaScript.

A few words about SObjectizer and its history

SObjectizer is a rather small C++ framework that simplifies the development of multithreaded applications. SObjectizer allows a developer to use approaches from Actor, Publish-Subscribe and Communicating Sequential Processes (CSP) models. It's an OpenSource project that is distributed under BSD-3-CLAUSE license.

SObjectizer has a long history. SObjectizer itself was born in 2002 as SObjectizer-4 project. But it was based on ideas from previous SCADA Objectizer that was developed between 1995 and 2000. SObjectizer-4 was open-sourced in 2006, but its evolution was stopped soon after that. A new version of SObjectizer with the name SObjectizer-5 was started in 2010 and was open-sourced in 2013. The evolution of SObjectizer-5 is still in progress and SObjectizer-5 has incorporated many new features since 2013.

SObjectizer is more or less known in the Russian segment of the Internet, but almost unknown outside of the exUSSR. It's because the SObjectizer was mainly used for local projects in exUSSR-countries and many articles, presentations, and talks about SObjectizer are in Russian.

A niche for SObjectizer and similar tools

Multithreading is used in Parallel computing as well as in Concurrent computing. But there is a big difference between Parallel and Concurrent computing. And, as a consequence, there are tools targeted Parallel computing, and there are tools for Concurrent computing, and they are different.

There are many ways to work out the order and privilege in which your product features should be brought to life. In fact, someone often tempts to go just with their gut. Feature scoring is a low-cost and convenient way to define the relative value of any number of things you may work on.

Hello, dear Habr users! This article is about Web 3.0 — the decentralized Internet. Web 3.0 introduces the concept of decentralization as the foundation of the modern Internet. Many computer systems and networks require security and decentralization features to meet their needs. A distributed registry using blockchain technology provides efficient solutions for decentralization.

The role of project management is becoming more and more relevant no matter in which area or industry it is implemented. In fact, it balances all project processes and steps and helps project teams meet their goals and objectives.

Project management helps to reach goals faster, cheaper and avoid risks thereby contributing greatly to business strategy execution. More companies cannot imagine their performance success without project management as one of the key business competencies. Since this competence is actively developing, professional project management software is also evolving with it in the same way.

The San Juan Math, Science, and Technology center in Puerto Rico is using game-based learning to pave the way for a new level of engagement among their students. The institution is part of San Juan’s municipal education system and is recognized by Microsoft alongside a global community of other schools engaged in K-12 education transformation. The school decided to integrate Minecraft: Education Edition into their curriculum and have seen exciting results in STEM learning.