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Sci/Tech

NASA ROSES-20 Amendment 64: Release of Final text of E.8 Supplemental Open Source Software Awards

Submitted by Roy Schestowitz on Tuesday 27th of October 2020 09:06:33 PM Filed under
OSS
Sci/Tech
Legal

Supplemental open source software awards are used to encourage the conversion of legacy software into modern code to be released under a generally accepted, open source license (e.g., Apache-2, BSD-2-clause, GPL). The supplement would add a software component to their previously selected "parent" research and analysis award.

ROSES-2020 Amendment 64 Releases Final text for E.8 Supplemental Open Source Software Awards. Notices of Intent are not requested. Proposals will be accepted on a rolling basis with a final due date of April 14, 2021.

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Chemtool: Open-source Chemical Structure drawing program

Submitted by Roy Schestowitz on Tuesday 27th of October 2020 08:02:33 PM Filed under
Software
Sci/Tech

Chemtool is a lightweight application for drawing chemical structures like organic molecules. It's originally written by Thomas Volk from Germany. Later on, more developers came to aid for development and code maintenance.

[...]

The program is created for Linux X systems, it does not work on Windows or macOS.

License

Chemtool is released under GNU General Public License.

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Stellarium 0.20.3 Released with Tons of Changes [Ubuntu PPA]

Submitted by Roy Schestowitz on Tuesday 29th of September 2020 03:30:15 AM Filed under
Software
Sci/Tech
SciFi

Free-software planetarium Stellarium 0.20.3 was released a day ago with numerous changes. Here’s how to install it in Ubuntu 18.04, Ubuntu 20.04 via PPA.

Stellarium 0.20.3 fixed nutation and, with it, season beginning times, included many changes in AstroCalc tool, Oculars and Satellites plugins, and updated DSO catalog.

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LabPlot 2.8 Released

Submitted by Roy Schestowitz on Wednesday 16th of September 2020 04:29:14 PM Filed under
KDE
Software
Sci/Tech

In 2.8 we made it easier to access many online resources that provide data sets for educational purposes. These data sets cover a variety of different areas, such as physics, statistics, medicine, etc., and are usually organized in collections.

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“It Just Works”: An Interview with Dexai Robotics

Submitted by Rianne Schestowitz on Friday 11th of September 2020 08:16:14 AM Filed under
Linux
Interviews
Sci/Tech

The simulators wind up using a lot of computational power, which is one of the reasons why we use System76. Portability is another. I really like the fact that I can run the full software stack on a laptop that I can always have with me. Previously, we had desktops sitting around in a lab environment, and people were often having to sign into them and borrow them. We needed a solution for new hires to have a computer they can rely on at all times.

A co-worker mentioned that she bought a machine from you guys back in 2019. After she recommended it, I did a little bit of digging online for the best Linux laptops available, and you all were named a fair amount in those searches—so I ordered one. I was pleasantly surprised with how it just worked right out of the box. I wasn’t fiddling with drivers, I wasn’t dealing with bootloader problems and figuring out how to get a working desktop environment up; I just opened it up and installed a bunch of software and I was ready to go.

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CAELinux 2020: Linux for engineering

Submitted by Roy Schestowitz on Sunday 6th of September 2020 12:09:00 PM Filed under
GNU
Linux
Sci/Tech

CAELinux is a distribution focused on computer-aided engineering (CAE) maintained by Joël Cugnoni. Designed with students and academics in mind, the distribution is loaded with open-source software that can be used to model everything from pig livers to airfoils. Cugnoni's latest release, CAELinux 2020, was made on August 11; readers with engineering interests may want to take a look.

CAELinux's first stable version was released in 2007 and was based on PCLinuxOS 2007. The distribution was created to make the GPL-licensed finite element analysis tool Salome-Meca easier to obtain. CAELinux 2020 is now the eighth release of the distribution, which is based on Xubuntu 18.04 LTS, and has expanded its focus over the years into an impressive array of open-source CAE-related tools.

The minimum requirements for CAELinux 2020 are a x86-64 platform with 4GB of RAM for "simple analysis." For professional use, the project recommends 8GB of RAM or more with a "modern AMD/NVidia graphic card." The entire distribution can be run from an 8GB USB memory drive, with the option to install it to disk (35GB minimum). For those users (like me) who wanted to run the distribution as a virtual machine, the project recommends the commercial VMware Player over the open-source VirtualBox project due to "some graphical limitations" of VirtualBox.

There are too many different software packages unique to the CAELinux distribution to cover them all in a single article. Since the distribution is built on top of Xubuntu, CAELinux comes with all of the standard tools available in the base distribution. In addition to the standard packages, however, CAELinux bundles CAE pre/post processors, CAD and CAM software, finite element solvers, computational fluid dynamics applications, circuit board design tools, biomedical image processing software, and a large array of programming language packages. A review of the release announcement provides a full list of the specific open-source projects available, including a few web-based tools that merely launch the included browser to the appropriate URL.

It would be impossible for me to claim familiarity with the full range of tools provided, but I was familiar with many. For example, FreeCAD has been written about at LWN, and CAMLab was used in our article on open-source CNC manufacturing. I have personally used other bundled packages like FlatCAM for isolation routing of homemade circuit boards and Cura to slice 3D models for printing. What was particularly neat about exploring the distribution was getting introduced to new open-source software that matched my interests. I discovered KiCad EDA's PCB Calculator utility (simple, but handy), and I am looking forward to checking out CAMotics as another CAM alternative for my CNC router.

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Cantor 20.08

Submitted by Roy Schestowitz on Saturday 15th of August 2020 07:56:56 PM Filed under
KDE
Sci/Tech

Our developers are adding some usability improvements to Cantor and some initial results from GSoC projects are now available with the 20.08 release.

For example, now you can collapse, uncollapse, and remove all results from the worksheet; exclude entries from the worksheet commands processing; add actions for selected texts; zoom widgets; get tooltips for almost all settings options; use the new horizontal rule entry; and more.

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Cantor - File Browser Panel

Submitted by Roy Schestowitz on Monday 20th of July 2020 03:25:36 PM Filed under
KDE
Sci/Tech

this is the fourth post about the progress in my GSoC project and I want to present some user experience improvements related to the handling of panels in Cantor and to present a new panel "File Browser" that I implemented recently.

The status of Cantor's panels was not saved when the user closed the application. Potential rearangements and size changes done on panels were gone and the user had to do the changes again upon the next start. Very bad UX, of course. Now, the state is saved and even more, the state is saved for every backend in Cantor. So, if you have a Python session in Cantor, open some panels and arrange them at your will, close and reopen Cantor with a Python session again - the previous state of the panels appears on start.

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Also: GSoC ’ 20 Progress: Week 5 and 6

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scikit-survival 0.13 Released

Submitted by Rianne Schestowitz on Sunday 28th of June 2020 11:05:04 PM Filed under
Software
GNOME
Sci/Tech

Today, I released version 0.13.0 of scikit-survival. Most notably, this release adds sksurv.metrics.brier_score and sksurv.metrics.integrated_brier_score, an updated PEP 517/518 compatible build system, and support for scikit-learn 0.23.

For a full list of changes in scikit-survival 0.13.0, please see the release notes.

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What Operating System Is the Best Choice for Software Engineers?

Submitted by Rianne Schestowitz on Sunday 28th of June 2020 09:50:04 PM Filed under
OS
Development
GNU
Linux
Sci/Tech

GNU/Linux is, hands down, the most highly acclaimed operating system for software engineering. It comes with an absolute ton of development tools and has unprecedented performance with regard to software development.

Linux, in case you are not aware, is a free, open-licensed operating system. This means that it is very developer-friendly and can be, to a certain extent, customized to your own desires.

But, it is not for everyone.

Linux comes with a large selection of distributions (called distros in the trade). Each one, unsurprisingly, has the Linux Kernel at its core, with other components built on top. Many Linux users will tend to switch between these distros until they find the perfect 'recipe' for their needs and tastes.

We will highlight a few of these towards the end of the article.

What are some of the pros of using Linux for software development?

1. One of the main benefits of Linux, not to mention the Linux ecosystem, according to software engineers, is the amount of choice and flexibility it provides. This really does make it the jewel in the crown of operating systems.

2. Linux is free and open-sourced. This means you don't have to fork out tons of cash on licenses for the OS and other apps used on it.

3. It is easy to install directly on your computer, or you can boot Linux from an external drive like a USB flash drive or CD. You can also install it with or inside Windows if you need both.

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WordPress 5.6 Second Beta and WordPress Survey

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Games: Stadia, Graveyard Keeper and Wildermyth

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    Graveyard Keeper - Game Of Crone is an expansion to the medieval graveyard building and management sim that's like a morbid take on Stardew. This fresh expansion adds in another bunch of hours (6-12 they said approximately) to play through, along with a whole new story to follow where you help a bunch of escaped prisoners build up a camp. "You’ll have to help the escaped prisoners of the Inquisition survive in the wilderness by providing them with everything they need. To develop their camp to a fortified settlement while keeping in mind its benefits. To protect those who entrusted you with their lives, from the sword and fire. And also - to untangle the circumstances of the cruel game, which turned into the Great Blast and the return of the Ancient Curse."

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