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Rescooped by
michel verstrepen
from Raspberry Pi
May 23, 2022 3:51 PM
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Before getting enthusiastic about the upcoming release of 5.19, Torvalds advised developers to "run boring old plain 5.18." Learn more about the changes in the latest Linux Kernel version.
Via F. Thunus
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Rescooped by
michel verstrepen
from Media, Business & Tech
May 23, 2022 3:50 PM
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A video protesting the Shanghai lockdown spread quickly on the app, as Chinese users raced to outwit censors and keep it alive.
Via Bruno Renkin
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Rescooped by
michel verstrepen
from Into the Driver's Seat
May 22, 2022 6:09 PM
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Gone are the “good old days” when the only emails we had to worry about were from a Nigerian prince asking for half a million dollars or an occasional threat of a computer virus. Your tech director has been faced with many new threats to school technology assets– networks, computers, and data security. You can be a big help in keeping your school district and your own personal devices secure by following a few time-honored adages from one of our founding fathers, Ben Franklin.
“An Ounce of Prevention Is Worth a Pound of Cure.”
Via Jim Lerman
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Rescooped by
michel verstrepen
from Planète DDurable
May 22, 2022 2:53 AM
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Les appareils vampires sont des appareils qui continuent de consommer de l’énergie lorsqu’on ne les utilise pas. Ces derniers entraînent des gaspillages
Via Hubert MESSMER
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Rescooped by
michel verstrepen
from Raspberry Pi
May 21, 2022 1:40 AM
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NoSQL Database is one of the most popular types of databases used in the industry for various use-cases. But, what is a NoSQL database?Is it any better...
Via F. Thunus
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Rescooped by
michel verstrepen
from Raspberry Pi
May 20, 2022 5:37 AM
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Home » content Devices and Open Hardware leftovers Submitted by Roy Schestowitz on Friday 13th of May 2022 09:38:33 AM Filed under Hardware Pine fun - Telephony (Roger, Roger?) In this article we will describe how we enabled basic telephony support on the Pinephone. 64 megapixel 'Hawk-Eye' brings high-res imaging to the Pi Well, the new 64MP 'Hawk-Eye' Pi camera takes the same autofocus system and straps it to an ultra-high-res 64 megapixel sensor (rumored to be Sony's excellent IMX686), then glues it to a board that fits in most places the official Pi Camera Module goes. moteus r4.11 This revision supports two alternate footprints for the CAN-FD transceiver to better support component availability and refines the power stage for the DRV8353 gate driver. moteus r4.8 was the first version to use the DRV8353 because of, once again, component availability issues. However, it was developed on a very abbreviated schedule. With r4.11 the EMI is much improved over r4.8 and r4.5, and the efficiency is much better than r4.8 at all input voltages and PWM frequencies. Fast bitset decoding using Intel AVX-512 Intel latest processors have new instruction sets (AVX-512) that are quite powerful. In this instance, it allows to do the decoding without any branch and with few instructions. The key is the vpcompressd instruction and its corresponding C/C++ Intel function (_mm512_mask_compressstoreu_epi32). What it does is that given up to 16 integers, it only selects the ones corresponding to a bit set in a bitset. Thus given the array 0,1,2,3….16 and given the bitset 0b111010, you would generate the output 1,3,4,6. The function does not tell you how many relevant values are written out, but you can just count the number of ones, and conveniently, we have a fast instruction for that, available through the _popcnt64 function. So the following code sequence would process 16-bit masks and write them out to a pointer (base_ptr). Faster bitset decoding using Intel AVX-512 At least two readers (Kim Walisch and Jatin Bhateja) pointed out that you could do better if you used the very latest AVX-512 instructions available on Intel processors with the Ice Lake or Tiger Lake microarchitectures. These processors support VBMI2 instructions including the vpcompressb instruction and its corresponding intrinsics (such as _mm512_maskz_compress_epi8). What this instruction does is take a 64-bit word and a 64-byte register, and it outputs (in packed manner) only the bytes corresponding to set bits in the 64-bit word. Thus if you use as the 64-bit word the value 0b11011 and you provide a 64-byte register with the values 0,1,2,3,4… you will get as a result 0,1,3,4. That is, the instruction effectively does the decoding already, with the caveat that it will only write bytes. In practice, you often want the indexes as 32-bit integers. Thankfully, you can go from packed bytes to packed 32-bit integers easily. One possibility is to extract successive 128-bit subwords (using the vextracti32x4 instruction or its intrinsic _mm512_extracti32x4_epi32), and expand them (using the vpmovzxbd instruction or its intrinsic _mm512_cvtepu8_epi32). You get the following result: [...] Teaching with Raspberry Pi Pico in the computing classroom Raspberry Pi Pico is a low-cost microcontroller that can be connected to another computer to be programmed using MicroPython. We think it’s a great tool for exploring physical computing in classrooms and coding clubs. Pico has been available since last year, amid school closures, reopenings, isolation periods, and restrictions for students and teachers. Recently, I spoke to some teachers in England about how their reception of Raspberry Pi Pico, and how they have found using it to teach physical computing to their learners. Summer Sale on Librem 14 Laptops Looking for the best time to order your Librem 14 laptop? Librem 14 is one of the most secure laptops we’ve built so far. The laptop is designed chip-by-chip, line-by-line, to respect your rights to privacy, security, and freedom. Standard orders ship within 10 days. All you have to do is enter the coupon code, L14SUMMER in the ‘Promotion Code’ box, at this link, to claim $100 off on your final order. Advantech, Canonical Boost Security and Edge Features in UNO Embedded Automation Platform with Pre-Loaded Ubuntu and Ubuntu Core 20 Advantech, leading provider of industrial Internet of Things (IoT) and automation technology, has announced its industry-proven UNO Embedded Automation Computer platform now has enhanced security and edge features with the pre-installation of Canonical’s Ubuntu Operating System (OS). Advantech’s UNO-2271G-V2 Edge IoT gateway is pre-loaded and certified for Ubuntu Desktop and Ubuntu Core 20 to streamline time-to-market for users, while also offering top-of-the-line security. A growing Advantech and Canonical collaboration means deployment-ready IoT devices are more market accessible and ensure developers have the best out-of-the-box Ubuntu experience. The rapid growth of IoT technologies comes with massive amounts of data from numerous systems and devices. This brings challenges in collection, storage, latency, and resiliency when relying only on the cloud. » Login or register to post comments Printer-friendly version 409 reads PDF version More in Tux Machines HighlightsFront PageLatest HeadlinesArchiveRecent comments All-Time Popular StoriesHot TopicsNew Members 20 Best Linux PDF Editors: Edit Pdf Files on Your Linux System Portable Document Format – PDF is a popular and widely used file system for emailing, sharing, and printing documents. You may need to install a suitable Linux pdf editor for basic editing because Linux does not have a default pdf editor. There are many options available when the question comes to editing pdf in Linux, but the choice is very limited if you compare it with adobe acrobat for Windows and macOS. That’s why here I have reviewed both free, open source, and paid Linux pdf editors for fulfilling the requirement of advanced and basic options. today's leftovers Rationale for a Browser-Level Color Scheme Preference Having dealt with implementing dark mode myself, my second reaction was: wait, this should be part of the browser! “As a user, I want to override my color scheme preference for the website I’m looking at but not be required to do it via the OS-level preference.” Why are links blue and purple? These colors weren’t really any safer since they’d be double-quantized on different palettes. Thankfully this dumb “web safe colors” myth died when 24-bit displays became affordable. Undone replacement of pipewire-media-session with wireplumber Two days ago the wireplumber package was made to replace pipewire-media-session as the latter session manager for PipeWire is considered dead upstream and will see no more releases. Unfortunately, this step was premature. Kubernetes 1.24: gRPC container probes in beta With Kubernetes 1.24 the gRPC probes functionality entered beta and is available by default. Now you can configure startup, liveness, and readiness probes for your gRPC app without exposing any HTTP endpoint, nor do you need an executable. Kubernetes can natively connect to your your workload via gRPC and query its status. Devices and Open Hardware leftovers Pine fun - Telephony (Roger, Roger?) In this article we will describe how we enabled basic telephony support on the Pinephone. 64 megapixel 'Hawk-Eye' brings high-res imaging to the Pi Well, the new 64MP 'Hawk-Eye' Pi camera takes the same autofocus system and straps it to an ultra-high-res 64 megapixel sensor (rumored to be Sony's excellent IMX686), then glues it to a board that fits in most places the official Pi Camera Module goes. moteus r4.11 This revision supports two alternate footprints for the CAN-FD transceiver to better support component availability and refines the power stage for the DRV8353 gate driver. moteus r4.8 was the first version to use the DRV8353 because of, once again, component availability issues. However, it was developed on a very abbreviated schedule. With r4.11 the EMI is much improved over r4.8 and r4.5, and the efficiency is much better than r4.8 at all input voltages and PWM frequencies. Fast bitset decoding using Intel AVX-512 Intel latest processors have new instruction sets (AVX-512) that are quite powerful. In this instance, it allows to do the decoding without any branch and with few instructions. The key is the vpcompressd instruction and its corresponding C/C++ Intel function (_mm512_mask_compressstoreu_epi32). What it does is that given up to 16 integers, it only selects the ones corresponding to a bit set in a bitset. Thus given the array 0,1,2,3….16 and given the bitset 0b111010, you would generate the output 1,3,4,6. The function does not tell you how many relevant values are written out, but you can just count the number of ones, and conveniently, we have a fast instruction for that, available through the _popcnt64 function. So the following code sequence would process 16-bit masks and write them out to a pointer (base_ptr). Faster bitset decoding using Intel AVX-512 At least two readers (Kim Walisch and Jatin Bhateja) pointed out that you could do better if you used the very latest AVX-512 instructions available on Intel processors with the Ice Lake or Tiger Lake microarchitectures. These processors support VBMI2 instructions including the vpcompressb instruction and its corresponding intrinsics (such as _mm512_maskz_compress_epi8). What this instruction does is take a 64-bit word and a 64-byte register, and it outputs (in packed manner) only the bytes corresponding to set bits in the 64-bit word. Thus if you use as the 64-bit word the value 0b11011 and you provide a 64-byte register with the values 0,1,2,3,4… you will get as a result 0,1,3,4. That is, the instruction effectively does the decoding already, with the caveat that it will only write bytes. In practice, you often want the indexes as 32-bit integers. Thankfully, you can go from packed bytes to packed 32-bit integers easily. One possibility is to extract successive 128-bit subwords (using the vextracti32x4 instruction or its intrinsic _mm512_extracti32x4_epi32), and expand them (using the vpmovzxbd instruction or its intrinsic _mm512_cvtepu8_epi32). You get the following result: [...] Teaching with Raspberry Pi Pico in the computing classroom Raspberry Pi Pico is a low-cost microcontroller that can be connected to another computer to be programmed using MicroPython. We think it’s a great tool for exploring physical computing in classrooms and coding clubs. Pico has been available since last year, amid school closures, reopenings, isolation periods, and restrictions for students and teachers. Recently, I spoke to some teachers in England about how their reception of Raspberry Pi Pico, and how they have found using it to teach physical computing to their learners. Summer Sale on Librem 14 Laptops Looking for the best time to order your Librem 14 laptop? Librem 14 is one of the most secure laptops we’ve built so far. The laptop is designed chip-by-chip, line-by-line, to respect your rights to privacy, security, and freedom. Standard orders ship within 10 days. All you have to do is enter the coupon code, L14SUMMER in the ‘Promotion Code’ box, at this link, to claim $100 off on your final order. Advantech, Canonical Boost Security and Edge Features in UNO Embedded Automation Platform with Pre-Loaded Ubuntu and Ubuntu Core 20 Advantech, leading provider of industrial Internet of Things (IoT) and automation technology, has announced its industry-proven UNO Embedded Automation Computer platform now has enhanced security and edge features with the pre-installation of Canonical’s Ubuntu Operating System (OS). Advantech’s UNO-2271G-V2 Edge IoT gateway is pre-loaded and certified for Ubuntu Desktop and Ubuntu Core 20 to streamline time-to-market for users, while also offering top-of-the-line security. A growing Advantech and Canonical collaboration means deployment-ready IoT devices are more market accessible and ensure developers have the best out-of-the-box Ubuntu experience. The rapid growth of IoT technologies comes with massive amounts of data from numerous systems and devices. This brings challenges in collection, storage, latency, and resiliency when relying only on the cloud. Programming Leftovers Three packages that port the tidyverse to Python As I’ve been saying every year for the past seven years or so, I am learning Python. (It’s been a journey.) Python packages like pandas have several ways to work with data. There are several options for indexing, slicing, etc. They have a lot of flexibility but also a lot of conventions to remember.I am familiar with the grammar of the tidyverse, which provides a consistent set of verbs to solve common data manipulation challenges. I investigated ways to port tidyverse-like verbs to Python (hopefully making Python a little easier to grasp).Here are three packages that do just that. Programming Style Influences In programming, in contrast, we rarely talk about our influences, other than a frequently expressed allegiance to a single programming language. This seems a shame to me, because it denies new people to our field helpful pointers to programmers and systems whose style might be a useful influence. As a modest attempt to rectify this situation, I'm going to show how one particular system, OpenBSD, has had a big influence on my programming style over time. It's far from the only system that's influenced me – not to mention various programmers and communities who've also been an influence [1] – but I need something concrete to use as an example. Modernizing AWK, a 45-year old language, by adding CSV support Why do we need this in the first place? Unfortunately standard AWK doesn’t have a way to handle CSV files with quoted fields, which is very important for processing real-world CSV files.
Via F. Thunus
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Rescooped by
michel verstrepen
from Into the Driver's Seat
May 19, 2022 10:21 PM
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We've all been in situations that required making sense of voluminous documents in a short time. Unless the document's author was generous enough to create a summary, the only way out is to skim through the whole document.
However, if you are a fan of Google Docs, Google is now offering an easy way out. When a document's author doesn't offer a summary, Google Docs will now be able to do that automatically through a new feature called Auto-Generated Summaries. Here's what we know about the feature so far.
Via Jim Lerman
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Rescooped by
michel verstrepen
from Daily Magazine
May 18, 2022 2:12 AM
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Community is a text messaging service that connects individuals and organizations instantly and directly to their audiences through text messaging at scale.
Via THE OFFICIAL ANDREASCY
You should bookmark these incredibly useful sites because you may need them someday! They are handy for many different purposes.
Via John Evans
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Rescooped by
michel verstrepen
from Media, Business & Tech
May 17, 2022 2:09 PM
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Une étude menée par OpinionWay pour Mailinblack révèle l'impact des biais cognitifs et de facteurs comme le stress sur la cybersécurité.
Via Bruno Renkin
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Rescooped by
michel verstrepen
from Into the Driver's Seat
May 17, 2022 2:08 PM
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"There are many ways to share files between people and devices, but a lot of those methods can be cumbersome by requiring app downloads, account registrations, cloud storage setups, etc. Who has the time for that? That's why we prefer no-hassle file sharing websites instead.
By file sharing, we don't mean the peer-to-peer torrenting variety. We're talking about sites that let you drag-and-drop files and share links to those files so that others can download them right away, without registering.
Here are 15 of the best sites that you should bookmark to save time going forward."
Via Jim Lerman
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Après certaines pratiques révélées pendant la crise sanitaire, le gardien français de la vie privée a lancé une consultation publique sur la régulation de l'intelligence artificielle appliquée à la vidéosurveillance. Les caméras augmentées peuvent repérer des situations suspectes sans identifier les passants mais en analysant ce qu'ils font.
Via Intelligence Economique, Investigations Numériques et Veille Informationnelle
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Rescooped by
michel verstrepen
from Media, Business & Tech
May 23, 2022 3:50 PM
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La décision de la Cnil de déclarer illégale l'utilisation du service de Mountain View raisonne comme un nouveau rappel à l'ordre. L'occasion de faire le point sur les politiques des hyperscalers en matière de gestion des données personnelles.
Via Bruno Renkin
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Rescooped by
michel verstrepen
from Art of Hosting
May 22, 2022 2:56 AM
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Rescooped by
michel verstrepen
from Audiobook Business News
May 21, 2022 3:14 PM
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Audiobooks are one of the fastest-growing segments of not just the publishing industry, but the entire media and entertainment market
Via Byron Wagner
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Rescooped by
michel verstrepen
from Raspberry Pi
May 21, 2022 1:39 AM
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Researchers at the National Technical University of Athens required a system to help them monitor the shipwreck of a merchant ship near Peristera, one of...
Via F. Thunus
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Rescooped by
michel verstrepen
from Into the Driver's Seat
May 21, 2022 12:04 AM
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There's a difference between using your smartphones or laptops and making the most out of them. To a large extent, automation tools allow you to get the most out of your gadgets by taking on repetitive and time-consuming tasks to focus on more important things.
In this article, we'll explore some apps that can help you save time and streamline your workflow.
Via Jim Lerman
How to cite this article APA: Bainbridge, S. (2016, August 18). The State of Open Access [Blog post]. Retrieved from
Via Dr. Susan Bainbridge
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Rescooped by
michel verstrepen
from Daily Magazine
May 18, 2022 2:12 AM
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Musk's Twitter deal is still going ahead, though not smoothly by any interpretation.
Via THE OFFICIAL ANDREASCY
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Rescooped by
michel verstrepen
from Daily Magazine
May 18, 2022 2:12 AM
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Rescooped by
michel verstrepen
from Freewares
May 17, 2022 2:09 PM
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LANDrop est une application gratuite multi-plateformes qui permet de partager facilement des fichiers entre différents appareils, que ce soit sur Windows, macOS, Linux, iOS ou encore Android. Ce logiciel effectue des transferts de fichiers en toute sécurité en utilisant votre réseau local : il faut que tous les appareils échangeant des fichiers soient connectés sur le même réseau Wifi.
Via Freewares&Tutos
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Rescooped by
michel verstrepen
from Into the Driver's Seat
May 17, 2022 2:08 PM
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Since the internet is the fastest way to connect with people, having the fastest possible connectivity is more important than ever. A fast internet ensures that you enjoy lag-free streaming and instant downloads.
As such, here are different changes you can make to increase your internet speed in Windows 11.
Via Jim Lerman
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