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Hier — 26 janvier 2022Libre

Courrier | L'asso reçoit du courrier | Abidjan Côte d'Ivoire| Janvier 2022

Courrier reçu en janvier 2022, posté depuis Abidjan en Côte d'Ivoire.
Vous aussi, envoyez une carte postale à l'asso ! Montpel'libre - 9, rue de la Poésie 34000 Montpellier Nous publierons votre courrier.
Abidjan est la ville la plus peuplée de la Côte d'Ivoire. Cette ancienne capitale administrative et politique du pays jusqu'en 1983, date de son transfert à Yamoussoukro, est devenue, depuis 2001, un « district autonome » qui regroupe dix communes et trois communes périphériques.
Capitale économique (...)

- Courrier
  • 26 janvier 2022 à 16:02

Accessibility Testing with Chrome Extensions

Par Tuukka Virtanen

Accessibility testing is considered an important part of software testing. Accessibility testing ensures that your software is accessible and usable to all kinds of people, regardless of their abilities. This includes people with disabilities like hearing loss, blindness and color blindness but also people of old age with decreased motor skills and other disadvantaged groups, like people suffering from ADHD and other mental conditions. Today, many public organizations have strict accessibility regulations to make sure that their public services are available to these groups.

There are many different tools for accessibility testing and tools to evaluate the accessibility of a user interface, but in this blog post I would like to focus on two tools, Funkify and Wave. I chose these tools to compare because both of them are available as easy-to-use Chrome extensions. As most modern software has a web UI, this makes them very useful for quickly evaluating the accessibility of a website.

Funkify has a unique approach to accessibility testing: it describes itself as a disability simulator. That makes immediate sense as soon as you start the extension on a testable website. Funkify offers different simulators, such as cognition simulator, dyslexia simulator, motor simulator and vision simulator, that can be turned on and off. If you turn on the dyslexia simulator, suddenly all the text on the website starts scrambling and moving around. It tries to emulate how the dyslexic view the world and provide the developers insight about how to structure the textual components of their UI.

Funkify’s other simulators work the same way. The visual simulators include options for simulating people with decreased visual contrast (lightens or darkens text and webelements), for simulating color blindness (images become tinted with a green hue and all red is removed), for simulating tunnel vision (only showing the center of the page with blackness around). The motor simulator simulates having troubles with navigating by making the cursor shake violently all over the screen. The cognition simulator simulates ADHD by constantly stopping your scrolling with irrelevant popups that take over the screen.

I really like Funkify’s idea of using different personas to represent different kinds of users. It would be easy to create a comprehensive accessibility testing plan by basing it on all these personas and how they interact with the software. However, there should also be some systematic review of all webelements to ensure correct contrast, alternative text and ARIA (Accessible Rich Internet Applications) elements. This is where Wave can provide help.

Wave is more conventional in its view of accessibility testing. Once you start it on a testable website, it opens a sidebar that shows you all accessibility violations it found. Wave lists all found errors, contrast errors, alerts, features, structural elements and ARIA violations. By clicking the details, you can see the breakdown of the results and all the violations appear as icons on the open web page. You can easily navigate the violations by clicking these icons and seeing what bit of code caused them. There is also a reference page that provides information about the violation and why it matters for accessibility.

Wave also provides a view of contrast errors. By clicking the contrast tab, you can see all the contrast errors listed and Wave also calculates the contrast for all of your text elements. It calculates the relationship between the text color and its background color and tells you, if it’s not at the required level of 4.5:1 for normal text and 3:1 for large text. This helps users with bad eyesight to read more easily without strain.

Comparing these two tools, Funkify and Wave, led me to the following conclusion. They don’t really compete with each other as much as I thought beforehand but support different aspects of accessibility testing. Funkify provides a persona-based accessibility view and Wave provides a systematic accessibility aspect view.

Checkout these tools and their websites:

Funkify: https://www.funkify.org/

Wave: https://wave.webaim.org/

The post Accessibility Testing with Chrome Extensions appeared first on SogetiLabs.

Issue #48 – Real Fake

Par Thijs Pepping

Real Fake Newsletter

On the 15th of October our book “Real Fake – Playing with Reality in the Age of AI, Deepfakes and the Metaverse” has been released. It is our take on synthetic media, deepfakes, fake news, conspiracy theories, memes, internet culture, Generation Z and Alpha, crypto, narrative economics, virtual humans, CGI influencers, vTubers, NFTs, DAOs, VR, Web3, the Creator Economy and the Metaverse. Real Fake is about how humans continuously manipulate reality and how new digital technology tools enable us to go one step further in this ancient game.

Reality Surfing

The metaverse promises to bring us an abundance of realities.  […] The metaverse will do for reality what the web did for information: give us so many options that we don’t have to experience any of them very deeply at all. We’ll be able to reality surf, zipping out of a reality whenever it becomes too “heavy,” as the hippies used to say.“

West Elm Caleb: Inside The Making Of A TikTok Villain

“In less than a week, a seemingly average, 20-something single man [=West Elm Caleb] has become TikTok’s latest punching bag — with a hashtag of his own, millions of views and scores of videos decrying his name. […] Through each iteration of what some experts have deemed “TikTok’s witch hunt effect,” the people who become a hashtag have been dehumanized into a meme and then left to pick up the pieces after the mob moves on. [..] We now are stuck in this cycle where every three to four weeks there is a new person that everyone’s is attacking and that’s why we can’t even get ourselves out of this cycle.”

Enter The Metaverse

The metaverse represents the most recent battle between human freedom and the constraints of reality. It could also become a battle to define reality itself.”

Facebook Patents Reveal How It Intends To Cash In On Metaverse

“Pupil movements, body poses and nose scrunching are among the flickers of human expression that Meta wants to harvest in building its metaverse, according to an analysis of dozens of patents recently granted to Facebook’s parent company. […] The objective is to create 3D replicas of people, places and things, so hyper-realistic and tactile that they’re indistinguishable from what’s real, and then to intermediate any range of services . . . in truth, they’re undertaking a global human-cloning programme. […] The patents indicate how Meta could offer ads in its immersive world that are even more personalised than what is possible within its existing web-based products.”

What To Wear In The Metaverse?

Dressing for the metaverse is like having a doll of yourself you can dress up, except the doll is not actually separate from you; it is you. And it is shaped by our own pre-existing relationship with the metaverse, whether or not we think of it that way, via social networks in which we curate, and often filter, the narrative of our lives. So it is reality — but not real.”

Dune Book Bought For Millions By People Who Don’t Understand Movie Rights

“A group of crypto enthusiasts has made an unusual purchase: a rare copy of Dune, by science fiction writer Frank Herbert, for a staggering €2.66 million ($3.04 million). […] It’s an odd occurrence when a book expected to fetch €25,000 goes for 100 times that amount, but the stranger part is that the buyers – a collective called SpiceDAO – appear to believe that owning an early copy of the hit sci-fi about space worms gives them the copyright, to do with what they will.”

Buying a copy of something doesn’t give you the exclusive rights to monetise its content. It’s literally the bedrock of intellectual property law… Who wants to tell them?

‘War Is Coming’: Mysterious TikTok Videos Are Scaring Sweden’s Children

In Sweden, an unusual anxiety is afflicting children and young teenagers. Some can’t sleep. Some ask their parents if Russia is about to attack their country. Where did they get that idea? TikTok. War is coming, say some of the videos that the social-media platform is feeding to young Swedes.”

Abusing AI Girlfriends

“The friendship app Replika was created to give users a virtual chatbot to socialize with. But how it’s now being used has taken a darker turn. Some users are setting the relationship status with the chatbot as “romantic partner” and engaging in what in the real-world would be described as domestic abuse. And some are bragging about it on online message board Reddit.”

What’s All the Hype About the Metaverse?

The metaverse is the convergence of two ideas that have been around for many years: virtual reality and a digital second life. For decades, technologists have dreamed of an era when our virtual lives play as important a role as our physical realities. In theory, we would spend lots of time interacting with our friends and colleagues in virtual space. As a result, we would spend money there, too, on outfits and objects for our digital avatars.

Metaverse Deepdive

“Marketers the world over are waking up to the fact the metaverse is not to be ignored, but how exactly most brands will exist in this new frontier remains to be seen. We explore the exciting new opportunities for marketers in this rapidly growing space, and provide all the information you need to start creating your very own metaverse strategy.”

A deepdive (a collection of articles) into the Metaverse by The Drum.

The Beauty Business Turns To Augmented Reality

“With COVID keeping people away from cosmetics counters, the latest thing in “beauty tech” is the VTO — or virtual try-on. Customers love playing with these apps so much that companies see big revenue boosts after introducing them. […] With VTO, beauty companies are able to turn the sales experience into a form of entertainment, which lifts sales.“

Metaworse

“I’m not smart enough or visionary enough to know what the metaverse shopping experience should look like but if it is me putting on a headset to flog around the aisles of a virtual supermarket then that’s never going to gain traction. Why create something that is worse in the virtual world than the options we already have in front of us in the real world just so that it can be done in 3D?”

Is The Media Doomed?

“Fifteen years from now, in January of 2037, media will be even more inescapable. It will have become a permanent, seamless overlay on reality, a warped window through which we see the world.”

Some experts and media thinkers on what media will look like in the next 15 years.

How Tumble Became Popular For Being Obsolete

“Tumblr is something like an Atlantis of social networks. Once prominent, innovative, and shining, on equal footing with any other social-media company, it sank under the waves as it underwent several ownership transfers in the twenty-tens. But it might be rising once more. Tumblr’s very status as a relic of the Internet—easily forgotten, unobtrusively designed, more or less unchanged from a decade ago—is making it appealing to prodigal users as well as new ones.”“Tumblr, unofficial home of fandoms, niche subcultures and broad self expression is undergoing a resurgence with Gen Z as they look for new ways to connect and form community.”

Novak Djokovic Is The New Face Of The ‘Unvaxxed Sperm’ Movement

“The anti-vaccine activist community has been awaiting a truly global superstar to become their standard-bearer, and they appear to have finally found it in Serbian tennis champion Novak Djokovic. […] “Without a doubt, his sperm is the most valuable right now. He’d be a great hero for the movement,” a member of the Unvaxxed Sperm group wrote.”

What Bored Apes Can Teach CMOs About Guiding Their Companies Into the Future

“Bored Apes are emblematic of all that is possible in today’s digital landscape: a cultural, creative, technological, influential affair. Understanding this phenomenon can help weave the Bored Apes mentality into your work. […] Competitive advantage is done. It has given way to something more rewarding and abundant: collaborative advantage. From influencers and media to businesses, brands have entered the age of collaboration.”

The future of companies depends on their capability to create shared value. Can you help create shared value within your ecosystem? Every ecosystem thrives on signature interactions. It’s the future of business. And the future of your brand.

MUST READ: Reality+

“Advances in technology will deliver virtual worlds that rival and then surpass the physical realm. And with limitless, convincing experiences on tap, the material world may lose its allure”

In his book Reality+ author David Chalmer claims that virtual reality is genuine reality. 

Rave Party In Decentraland

Source: https://twitter.com/alexmoss/status/1484138206291443714

How exciting….

MUST WATCH: NFT Profile Pictures on Twitter Blue

Twitter Blue NFT.

Doesn’t Twitter have bigger problems to solve?

MUST WATCH: Samsung Exynos

SAMSUNG EXYNOS YouTube 16 9 60s v04

Contact

Real Fake is a weekly newsletter in which SogetiLabs’s Research Institute VINT examines the future where synthetic reality becomes part or our objective reality. We investigate the impact of new technology on people, organisations and our society. If you have any questions or comments, do not hesitate to contact us. You can reach us at vint@sogeti.com.

If you want to read these updates more often, subscribe here to receive the newsletter in your email every week: https://www.getrevue.co/profile/playingwithreality

The post Issue #48 – Real Fake appeared first on SogetiLabs.

Cutting Carbon Emissions Is Harder Than the Glasgow Climate Pact Thinks

Par Vaclav Smil


Three months ago the Glasgow Climate Pact (COP26) declared that by 2030 the world must cut total carbon dioxide emissions by 50 percent relative to the 2010 level, which was 30.4 billion tonnes. This would bring annual emissions to less than 20 billion tonnes, a level last seen more than 30 years ago.

What are the chances of that? Let’s look at the arithmetic.




First, assume that all energy-consuming sectors share the cuts equally and that global energy demand stays constant (instead of increasing by 2 percent a year, as it did in the prepandemic decade). Today our best commercial batteries have energy densities of about 300 watt-hours per kilogram, less than 3 percent as much as kerosene; among some 25,000 planes in the global commercial fleet, there is not a single high-capacity electric or hydrogen-powered aircraft. A 50 percent cut in kerosene-fueled flying would mean that by 2030 we would have to build about 12,000 new airplanes with capacities of from 100 people (the Embraer 190) to 400 people (the Boeing 777-300ER), all powered by as-yet-nonexistent superbatteries or equally nonexistent hydrogen systems. That’s what we’d need to fly about 2.2 billion passengers a year, for a total of about 4.3 trillion carbon-free passenger-kilometers. What are the chances of that?

In 2019 the world produced 1.28 billion tonnes of pig (cast) iron in blast furnaces fueled with coke made from metallurgical coal. That pig iron was charged into basic oxygen furnaces to make about 72 percent of the world’s steel (the rest comes mostly from electric arc furnaces melting scrap metal). Today there is not a single commercial steel-making plant that reduces iron ores by hydrogen. Moreover, nearly all hydrogen is now produced by the reforming of natural gas, and zero-carbon iron would require mass-scale electrolysis of water powered by renewable energies, something we still haven't got. A 50 percent cut of today’s carbon dependence would mean that by 2030 we would have to smelt more than 640 million tonnes of iron–more than the annual output of all of the blast furnaces outside China–-by using green hydrogen instead of coke. What are the chances of that?

Decarbonizing the global fleet of cars by 40 percent in nine years would require that we manufacture 63 million EVs a year, nearly as much as the total global production of all cars in 2019.

In 2021 there were some 1.4 billion motor vehicles on the road, of which no more than 1 percent were electric. Even if the global road fleet were to stop growing, decarbonizing 50 percent of it by 2030 would require that we manufacture about 600 million new electric passenger vehicles in nine years—that’s about 66 million a year, more than the total global production of all cars in 2019. In addition, the electricity to run those cars would have to come from zero-carbon sources. What are the chances of that?

To set goals that correspond to available technical capabilities while taking into account reasonable advances in the production and adoption of non-carbon energy sources, we must start with grade-school algebra. What are the chances of that?

This article appears in the February 2022 print issue as “Decarbonization Algebra.”

3D-Printed OLEDs Enable DIY  Screens Nearly Anywhere

Par Payal Dhar


LCDs may be the mainstay of consumer displays, but when it comes to picture quality, including high contrast ratio, brighter colors, and wider viewing angles, OLEDs have the edge. These organic light-emitting diode displays are so-called because of their self-emission capabilities, using organic carbon-based compounds and other ingredients to create colors. Because each pixel produces its own light, OLEDs require no backlighting. They are, therefore, more power efficient, and can be fabricated into slimmer and more flexible displays.

Of course, there is a catch. OLED displays are expensive to manufacture, and traditional fabrication techniques need specialized set-ups. Researchers have been looking at 3D-printing solutions, but even these have had drawbacks, among them a lack of uniformity in the active (emitting) layers of the display.

Recent research from the University of Minnesota (UM) Twin Cities describes a “one-pot” 3D-printing platform for flexible OLEDs that overcomes some of the common printing problems and simplifies the manufacturing process. Essentially, the researchers combined all the critical steps for the production of the display—extrusion printing of the lower layers, spray printing of the active layers, and structural reconfiguration—into a single device, a custom-built table-top 3D printer.

“Anyone with the basic knowledge of 3D printing can [print] OLED displays... in homes that possess the proper inks and designs.”
—Ruitao Su, MIT

“[Our] printing platform consists of…a high-precision motion control module, an ink dispensing module that extrudes or sprays materials, an imaging system that assists the alignment of device layers, and an ink curing system,” says Ruitao Su, former Ph.D. student at the University, now a post-doctoral researcher at MIT’s Computational Design and Fabrication Group.

The result was a six-layer, 1.5-inch square flexible display, in which the electrodes, interconnects, insulation, and encapsulation were extrusion-printed, while the active layers were spray-printed using the same 3D printer at room temperature. The device had 64 pixels, each one emitting light. It was also flexible, and the emission remained stable over 2,000 bending cycles.

The major challenge printing the active or emitting layers, Su says, is achieving a relatively uniform morphology on the 3D printer. He says his team solved the problem by generating homogenous layers of the OLEDs with controllable thickness. Another issue involved creating stable, room-temperature cathode–polymer junctions. That one, Su says, they solved by developing a mechanical compression process “that simulates conventional metal forging but conducted on 3D printers.”

For Su and team, one of the considerations in coming up with a fabrication process for a flexible, fully 3D-printed OLED display was cost effectiveness. Traditional production processes require expensive microfabrication facilities that have to be housed in cleanrooms, he says, but “[in our prototype] the cost…is reduced in terms of the required facilities and specialized personnel.”

Apart from its potential in soft electronics and wearables, this “one-pot” methodology allows for other unique form factors beyond the typical 2D layout. “I envision the direct printing of OLED displays on non-conventional surfaces such as tables, cars, or even human bodies for ubiquitous information display,” says Su.

Such flexible displays could be packaged in an encapsulating material for a wide variety of applications as well. “The pixels can be conformally printed on curved surfaces to integrate with daily objects in the era of Internet of Things…. The OLED pixels can also be printed in 3D matrices so that the entire printed [device] functions as displays.” The group's print-your-own-display tech could even ultimately enable homemade holograms—though, he says, further innovations in the hardware would be necessary first.

The word hello in yellow pixelsThe word “HELLO” captured while the text scrolled on the 8 × 8 OLED display.Ruitao Su/University of Minnesota

Even though their method was designed for small-batch, customized fabrication, Su says, “The point is that you don’t have to build a semiconducting factory in order to have your desired devices fabricated. Because anyone with the basic knowledge of 3D printing can operate the machine, the OLED displays theoretically can be printed in homes that possess the proper inks and designs.”

Working with flexible OLEDs bring specific challenges too. “[They] require pixels and conductive interconnects that maintain good performance under large mechanical deformations,” Su explains. “Therefore, we selected materials that maintained high electrical conductivities, such as silver-based inks for our electrodes. For the encapsulation, we used a common transparent and flexible polymer, PDMS, to coat the device on top.”

There is plenty of work yet to be done to improve this technology, of course. Better device efficiency and increased brightness are major challenges for 3D-printed semiconducting devices, Su adds, and that is where their next focus will be.

  • 26 janvier 2022 à 16:24
  • 26 janvier 2022 à 16:22
  • 26 janvier 2022 à 13:58
  • 24 janvier 2022 à 13:52

Une machine virtuelle Windows 11 pour les développeurs à télécharger gratuitement

Par Korben

Amis développeurs, saviez-vous que Microsoft proposait sur son site une machine virtuelle Windows 11 Entreprise qui vous est entièrement destinée ?

Conçue pour vous permettre de créer des applications Windows rapidement avec les derniers outils Microsoft, elle vous intègre en plus de Windows 11 avec le mode développeur activé, le SDK de Windows 10, une version récente de Visual Studio avec avec UWP (plateforme Windows universelle), le bureau .NET et Azure activés ainsi que l’extension Windows Template Studio.

Visual Studio Code est également de la partie et le sous-système pour Linux est également présent avec Ubuntu installé par défaut. Sans oublier le terminal évidemment.

Cette machine virtuelle d’environ 20 Go est disponible pour VMWare, Hyper-V, Virtualbox ou encore Parallels et c’est gratuit.

À découvrir ici.

❌