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Sci/Tech

Box Plot

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KDE
Sci/Tech

In one of our previous blog posts we wrote about the new development in the spreadsheet and the extension in the statistics dialog that now make use of new visualization elements. One of these elements is the Box Plot...

Of course, this new visualization type is not only available in the statistics dialog in the spreadsheet, but it can also be used in the Worksheet, in the area where LabPlot plots the data. In this blog post we will introduce this important new development, as it is going to be part of the next release.

A box plot (also known as a box-and-whisker plot) provides a quick visual summary of the important aspects of a distribution of values contained in a data set...

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Computer scientist showcases world's first RISC-V-based Linux PC coupled with an AMD RX 6700 XT GPU

Filed under
GNU
Linux
Sci/Tech

Back when Nvidia was announcing the intentions to buy ARM and many industry analysts immediately expressed their concern regarding the status of the ARM architecture that might not remain open source for too long, SiFive came out with a big push for its RISC-V CPU architecture as a true open source alternative. Similar to the Windows-on-ARM initiative, SiFive promised to deliver a general use PC platform that would allow software developers to adapt the Windows and Linux-based code for the RISC-V processors. It only took SiFive a few months to launch its first PC motherboard called the HiFive Unmatched, which is based on the U7 SoC. However, since the RISC-V community is not that big, development on the PC platform is not exactly fast. Interestingly enough, Nvidia recently managed to enable RTX 3000 support for ARM-based laptops, and, almost at the same time, a RISC-V enthusiast managed to make an AMD RX 6700 XT work on Linux-based HiFive Unmatched system.

This is essentially a double milestone for the RISC-V community. Hackster.io reports that computer scientist René Rebe first managed to make the HiFive Unmatched run Linux, and then added support for the Radeon RX 6700 XT GPU through the Mesa Gallium 21.1.5 driver. Apparently, the U7 SoC is not properly supported in Linux, but Rebe was able to work his magic and patched the Linux kernel to support both the RISC-V architecture and the RDNA2 GPU in around 10 hours. The GPU is not fully functional as of yet. It can display the GUI, can render 3D graphics in accelerated-mode and also decode hi-res videos, but cannot run games. Nevertheless, this is still an impressive achievement that is not facilitated by the SiFive team itself.

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Meet the open-source software powering NASA's Ingenuity Mars Helicopter

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Sci/Tech

So they turned to F Prime, a reusable, multi-mission flight software framework designed for CubeSats, small spacecraft, and instruments. The program was initially developed in 2013 by a team led by Tim Canham at NASA's Jet Propulsion Laboratory in Southern California with the aim of creating a low-cost, portable, pliable software architecture option that would allow components written for one application to be reused easily in other applications and run on a range of processors.

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Following NetBSD, DragonFlyBSD Now Has "COVID"

Filed under
BSD
Sci/Tech

There is now covid going around the BSDs... DragonFlyBSD has ported it from NetBSD.

Yes, COVID as in COVID-19 / SARS-CoV-2 but this is actually an open-source package containing the SARS-CoV-2 genome and a manual (man page) encouraging vaccination and other steps to help prevent the spread of COVID.

DragonFlyBSD lead developer Matthew Dillon ported the covid utility from NetBSD. Following that commit this weekend was a follow-up patch for this covid utility now living in DragonFlyBSD world.

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How To Host Counter-Strike: Global Offensive Server on Ubuntu

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Sci/Tech

Counter-Strike: Global Offensive popularly known as CS: GO is one of the most popular games of all time. Released in 1999, the game involves two teams where the Terrorist team tries to plant explosives whereas the Counter-Terrorists team tries to prevent it.

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GNU Scientific Library 2.7 released

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GNU
Sci/Tech

Version 2.7 of the GNU Scientific Library (GSL) is now available. GSL provides a large collection of routines for numerical computing in C.
This release introduces some new features and fixes several bugs. The full NEWS file entry is appended below.

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Needed Free and Open Source Medicine

Filed under
GNU
Sci/Tech

So, what could be the solution? This reminds one of a similar situation in computer software when hardware prices dropped like a stone in water but software costs rose like a helium balloon and became the dominant part of the cost for anyone wishing to use a computer. This was made possible by converting software into a product which offers only the right to use, as opposed to the prevailing practice of allowing the users to do whatever they want with it, as was done in the Unix world before software became proprietary. Thus was born Free Software, launched by a prominent hacker of the time at the Massachusetts Institute of Technology, Mr. Richard M. Stallman under the project he called GNU’s Not Unix (with the recursive acronym GNU). This is software that gives users the freedom to use, share, study and modify. With those rights, the software became freely downloadable at zero cost, enabling anyone to use even an old computer, and thus making it accessible to virtually anyone. Today the software has grown to be the dominant one among all computing devices.

Can this be a model for medicine too? Yes, indeed. It can. In fact, there are medical systems other than modern medicine that practised this kind of openness. All traditional medical systems were open, as the concept of the ownership of knowledge, such as copyright and patent laws came only very recently. In fact, the first copyright law was enacted only in 1710 by Queen Anne of England and was known as the Statute of Anne. It was actually meant to prevent publishers from controlling the printing and sales of books to benefit only themselves. The statute sought to benefit the authors in order to encourage them to write more for the good of society. That it eventually got to be controlled by publishers is another story altogether.

The point is that, before all that happened, all knowledge was free (well, almost1), and everyone could learn whatever they wanted. Thus, medicines were often prescribed not by just a name, but by giving the recipe to prepare them. This continues to be the custom in systems like Ayurveda, Siddha and Unani systems of medicine developed in India and the Arab world and the Traditional Chinese Medicines (TCM2). But these medical systems may not be acceptable to many who are looking for scientific validation. This, unfortunately, is a drawback of these systems that were created millennia before modern science was born. But it could be easily recified if some researchers in the medical field are open-minded enough to do experiments to validate their medicines and treatment protocols, which have many pieces of anecdotal evidence of success. Alternatively, the government of India could direct its own Central Council for Research in Ayurvedic Sciences (CCRAS) to validate Ayurvedic, Siddha or Unani treatment protocols using modern scientific methods.

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Martian rover has some Linux computers, too

Filed under
Linux
Sci/Tech

NASA’s Perseverance rover is equipped with a Linux-driven, Atom-based CompuLab COMEX-IE38 module designed to compress images. The rover also has a Qualcomm 801 Linux system like its Ingenuity copter, which is embarking on a new scouting mission.

As LinuxGizmos and many other sites reported in February, NASA’s semi-autonomous Ingenuity drone copter is equipped with an embedded Linux computer based on the Qualcomm 801 (formerly Snapdragon 801). Ingenuity, which has since run several successful test flights on Mars, making it the first craft to fly in the atmosphere of an extra-terrestrial planet, uses the Qualcomm 801 via the Qualcomm Flight platform for navigation and camera control and processing.

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BREAKING NEWS: Linux Flies on Mars

Filed under
Linux
Sci/Tech

The National Aeronautics and Space Administration (NASA) is the American space agency responsible for the civilian space program, as well as aeronautics and space research.

A tiny and extremely lightweight helicopter, named Ingenuity, was transported to Mars in NASA’s Perseverance Rover. Ingenuity was deployed on 3 April 2021.

NASA has successfully flown this helicopter on the red planet today.

As it’s primarily a technology demonstration, Ingenuity’s first powered flight on the alien planet was brief. The Mars-copter flew to about 3m, hover, swivel and safely land in its momentous 40 second flight. But it’s a huge step forwards, paving the way for longer flights and the prospect of this technology undertaking reconnaissance missions.

[...]

This is a moment in history for us to remember. An open source operating system built by thousands flies a helicopter on another planet.

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Google operates with a Debian developer to produce COVID-19 research simpler on Linux

Filed under
Google
Debian
Sci/Tech
Ubuntu

“The Bazel team jumped in to help Olek and the COVID-19 research community. Yun Peng, Software Engineer at Google with Olek Wojnar led the team of Bazel and Debian volunteers to move the project forward. The joint effort between Debian and Google has produced some great results, including packaging the Bazel bootstrap variant in 6 months’ time (Debian 11 — released in Late 2021; Ubuntu 21.04 — 22 April 2021),” clarifies Google.

The search giant further says, “Bazel is now available as an easy to install package distributed on Debian and Ubuntu. The extended Google team continues to work with Debian towards the next step of packaging and distributing Tensorflow on Debian and other Linux distributions.”

While Olek Wojnar deserves a lot of credit for this successful partnership, Google has clearly acquired significant praise as well. Not only has the search giant assisted amazingly in this case, yet it has for some time been a companion of both the open-source and Linux communities.

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today's howtos

  • How to Install Glances System Monitor on Linux Mint 20 - LinuxCapable

    Glances System Monitor is free, an open-source command-line tool for process monitoring, system resources such as CPU, Disk I/O, File System, Load Average, Memory, Network Interfaces and processes. Glances are built with Python language. Glances support cross-platform monitoring, which can be used in conjunction with a web-based interface. One of the excellent features Glances supports is the ability to set thresholds in the program. You can set careful, warning, and critical in the configuration file, which will then relay information in colors that can show alerts to systems resources bottlenecks, system resources issues, and much more. Glances, by default, comes with a pre-set list of colors, but you can modify and add additional configs.

  • How To Install OpenLDAP on Ubuntu 20.04 - idroot

    In this tutorial, we will show you how to install OpenLDAP on Ubuntu 20.04 LTS. For those of you who didn’t know, OpenLDAP (lightweight directory access protocol) provides user authentication and enables you to set up user accounts that provide the user access to each computer in your network without having to set up a local user account on each computer. OpenLDAP is the free and open-source implementation of LDAP. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the OpenLDAP on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • Add storage with LVM | Opensource.com

    Logical Volume Manager (LVM) allows for a layer of abstraction between the operating system and the hardware. Normally, your OS looks for disks (/dev/sda, /dev/sdb, and so on) and partitions within those disks (/dev/sda1, /dev/sdb1, and so on). In LVM, a virtual layer is created between the operating system and the disks. Instead of one drive holding some number of partitions, LVM creates a unified storage pool (called a Volume Group) that spans any number of physical drives (called Physical Volumes). Using the storage available in a Volume Group, LVM provides what appear to be disks and partitions to your OS. And the operating system is completely unaware that it's being "tricked."

  • Turn Your Old PC into an Access Point [Ed: Old article reposted]

    Got some older computer equipment lying around? Don’t throw away those old PCs just yet. Whether you’re cleaning out or upgrading the computers in the office or at home, you should be able to find something to do with them. As we’ll discuss, you can use them for experimentation, routing, security, file or Internet serving, and more. Use these five suggestions to make one of the projects your late-night endeavor on the weekend or your new project at work.

  • How to back up Linux apps and files on your Chromebook - TechRepublic

    If you've made the jump and installed Linux support on your Chromebook, you've probably already started installing apps and working with files and data. That being the case, you might be curious as to how you back up those apps and data. In some cases, you'll be saving data within the Linux filesystem hierarchy (and not on either your local or cloud storage, via Chrome OS. Fortunately, the Chrome OS developers thought of this, so you don't have to bother with locating that data and running commands to back it all up.

Windows 11 will be the new Vista (or Windows 8)

I've been using Windows 10 in production for about two years now - testing it since even before the official release. Early on, my impression was that it was comparable to Windows 7. Okay. Nothing too special, new or revolutionary. Over time, this impression has changed. With subsequent semi-annual releases, I encountered issues I've never had in Windows before, mostly various system errors and bugs that speak of low quality and bad design. Then, Windows 10 would occasionally undo some of my tweaks and options, wasting my time, and forcing me to tighten the screws ever more. All in all, my outlook isn't bright or happy. Bored and exhausted by the nonsense would be the best word. Now, Windows 11 is coming. As I've done many times in the past, I logged into my Insiders account and started testing, to see what awaits me. Right away, I found the experience quite dejecting. My early impression of Windows 11 Dev Build was mediocre at best, and it progressively got worse with each update. Different from Windows 10, though. What happened was, I found myself reliving 2011, when I tested Windows 8 and came to pretty much the same conclusions. To wit, this is what I think will unfold. Read more

Maui Report – 15

Maui 2 was released a month ago, and since then new features, bug fixes, and improvements have been made to the Maui set of apps and frameworks; the following blog post will cover some of the changes and highlights from the last or so months of development. What’s new? Among many bug fixes that will be listed below for each individual app, some of the highlights include better support for client-side decorations aka CSD. Clip, the video player, is now working again on Android; MauiKit Controls now provide improved contextual menu actions and a lighter tab bar styling. Index, the file manager, can now also preview PDF documents, adding up to support for previews of text, video, audio and fonts file types; and translucency support is now embedded into MauiKit itself. Read more

Overcoming the Challenges of Embracing Linux: a Different Perspective

After months of working at SUSE, my Jungle Green t-shirt was finally recognized at a store. “SUSE?” the gentleman asked, pointing at the large white letters. “Yes, I work there!” I responded, thrilled that I had the opportunity to engage in our mutual love of the chameleon, Geeko, “But I don’t work on the technology, I’m in Program Management.” “Well, let me ask you this – what is the operating system on your computer at home?” he asked, inquiring to my level of SUSE-ness. “Just the basic… Microsoft,” I responded. He continued, “I have a virtual machine with Slackware 1.0 I’m running, and I’ve been trying to get my hands on something old, openSUSE older than 5.3.” I breathed a sigh of relief when our conversation was cut short and he ran off to help another customer. Slackware? Virtual Machine? All terms I had just enough exposure to know what category they belonged in, yet not enough to carry a conversation. Despite the embarrassment, I knew I wasn’t alone. A 2020 study by the AnitaB.org Institute found that women make up 28.8% of the tech workforce. When considering open source technology, this number further shrinks down to the single digits. Nonetheless, the number of women becoming cloud native practitioners is growing. Recently, Lynne Chamberlain, CEO of SUSE Rancher Government Solutions, and Denise Schannon, Director of Engineering, joined special host Katie Gamanji for a special feature of OCTOpod in which they discussed their contributions to Linux, challenges they have faced and shared inspiring stories on how they’ve overcome those challenges to get to where they are today. Read more