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Tailors stage protest demanding welfare assistance




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Crocodile Conservation Centre to come up at Anaikarai

The Centre is to be established at a cost of ₹2.5 crore based on a detailed proposal sent by the Principal Chief Conservator of Forests and Chief Wildlife Warden, Chennai




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Heavy rainfall forecast for Chennai, neighbouring districts till November 15

Chennai district collector has declared holiday for schools on November 12 owing to rain




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Absence of bund around deepened pond worries residents of Morais Garden Extension in Tiruchi

The pond at Runway Nagar, Kottapattu, which was deepened a few months ago, is now filled with water after recent rain. Residents are worried that it may overflow and the stagnant water might become a haven for snakes and insects.




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Stalin, Udhayanidhi congratulate winners of Chennai Grand Masters 2024




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Litigant withdraws PIL seeking revival of 2001 flyover construction scam case against T.N. CM Stalin

The Madras High Court also permits him to withdraw ₹1 lakh deposited in April this year to prove his bona fide intention




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Chennai and neighbouring districts to witness heavy rains till November 15

On Nov. 12, RMC, Chennai, upgraded its weather warning to orange alert, indicating a possibility of rainfall of very heavy intensity for 24 hours ending 8.30 a.m. on Nov. 13 in Chennai, Tiruvallur, and Chengalpattu districts




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BJP leader Tamilisai Soundararajan calls for ‘strong alliance of like-minded parties’ to defeat DMK in 2026

BJP’s Tamilisai Soundararajan says that it is not necessary that only parties with similar ideologies should form an alliance




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Madras High Court transfers cases against IT, Cable TV Rules to Delhi High Court

Justices M. Sundar and K. Rajasekar take the decision in light of the orders passed by the Supreme Court




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Stalin urges Jaishankar to secure release of T.N. fishermen in Sri Lankan Navy’s custody

In his letter, Mr. Stalin sought immediate diplomatic efforts to prevent such arrests




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Chain stretching in brushes favors sequence recognition for nucleobase-functionalized flexible precise oligomers

Soft Matter, 2024, 20,8303-8311
DOI: 10.1039/D4SM00866A, Paper
Kseniia Grafskaia, Qian Qin, Jie Li, Delphine Magnin, David Dellemme, Mathieu Surin, Karine Glinel, Alain M. Jonas
Flexible oligomers having precise sequences of nucleobases do not specifically recognize surface-grafted target chains at low grafting density. Moderately higher grafting densities promote sequence-specific recognition thanks to chain stretching.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Long range signature of liquid's inertia in nanoscale drainage flows

Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM01006J, Paper
Nathan Bigan, Mathieu Lizée, Marc Pascual, Antoine Niguès, Lydéric Bocquet, Alessandro Siria
In confinement, liquid flows are governed by a complex interplay of molecular, viscous and elastic forces.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Development of a coarse-grained molecular dynamics model for poly(dimethyl-co-diphenyl)siloxane

Soft Matter, 2024, 20,8480-8492
DOI: 10.1039/D4SM00875H, Paper
Weikang Xian, Amitesh Maiti, Andrew P. Saab, Ying Li
Polydimethylsiloxane and its copolymer systems have a wide range of application. We systematically develop a coarse-grained MD model for PDMS-co-PDPS system. The model preserves the structural and dynamic properties of the material quantitatively.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Effective patchiness from critical points of a coarse-grained protein model with explicit shape and charge anisotropy

Soft Matter, 2024, 20,8455-8467
DOI: 10.1039/D4SM00867G, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Jens Weimar, Frank Hirschmann, Martin Oettel
Critical points of an anisotropic, coarse-grained protein model are used to detemine an “effective patchiness” by comparison to the Kern–Frenkel patchy model.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Strain rate controls alignment in growing bacterial monolayers

Soft Matter, 2024, 20,8468-8479
DOI: 10.1039/D4SM00625A, Paper
Blake Langeslay, Gabriel Juarez
A model of cell alignment in confined growing bacterial monolayers connecting net monolayer deformation to the behavior of individual cells.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Linking local microstructure to fracture location in a two-dimensional amorphous solid under isotropic strain

Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00486H, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Max Huisman, Axel Huerre, Saikat Saha, John C. Crocker, Valeria Garbin
Machine learning predicts possible crack location in experiments of a fracturing colloid monolayer, shown along with the actual crack path.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Modeling nematic phase main-chain liquid crystal elastomer synthesis, mechanics, and thermal actuation via coarse-grained molecular dynamics

Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00528G, Paper
Nicolas Herard, Raja Annapooranan, Todd Henry, Martin Kroger, Shengqiang Cai, Nicholas Boechler, Yelena Sliozberg
This paper presents a coarse-grained molecular dynamics simulation study of the synthesis, mechanics, and thermal actuation of nematic phase main-chain liquid crystal elastomers (LCEs), a type of soft, temperature-responsive, polymeric...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Dynamical crossovers and correlations in a harmonic chain of active particles

Soft Matter, 2024, 20,8638-8653
DOI: 10.1039/D4SM00350K, Paper
Subhajit Paul, Abhishek Dhar, Debasish Chaudhuri
We explore the dynamics of a tracer in a harmonic chain of active particles, investigating the influence of interactions. Depending upon the time-scales governed by the interaction and the persistence of activity, we explore crossovers between different scaling behaviors of its dynamics.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Bending of polymer films: a method for obtaining a compressive modulus of thin films

Soft Matter, 2024, 20,8589-8600
DOI: 10.1039/D4SM00084F, Paper
Akihiro Ohara, Ko Okumura
We constructed a theory and method for measuring the compressive modulus by combining tensile and bending tests. Elastic asymmetry was confirmed in an industrial PET film.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Dynamics of polymers in coarse-grained nematic solvents

Soft Matter, 2024, Accepted Manuscript
DOI: 10.1039/D4SM00968A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Zahra Valei, Karolina Wamsler, Alex J Parker, Therese A Obara, Alex Klotz, Tyler Nathan Shendruk
Polymers are a primary building block in many biomaterials, often interacting with anisotropic backgrounds. While previous studies have considered polymer dynamics within nematic solvents, rarely are the the effects of...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Pairing-specific microstructure in depletion gels of bidisperse colloids

Soft Matter, 2024, Advance Article
DOI: 10.1039/D4SM00811A, Paper
Open Access
Rony A. Waheibi, Lilian C. Hsiao
We report the ensemble-averaged and pairing-specific network microstructure formed by short-range depletion attractions in bidisperse hard sphere-like colloidal systems.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Future Accessibility Guidelines—for People Who Can’t Wait to Read Them

Alan Dalton uses this, the International Day of Persons with Disabilities, to look back at where we’ve come from, to evaluate where we are, and to look forward to what’s coming next in the future of accessibility guidelines.


Happy United Nations International Day of Persons with Disabilities! The United Nations have chosen “Promoting the participation of persons with disabilities and their leadership: taking action on the 2030 Development Agenda” for this year’s observance. Let’s see how the World Wide Web Consortium (W3C)’s Web Accessibility Initiative (WAI) guidelines of accessibility past, present, and yet-to-come can help us to follow that goal, and make sure that the websites—and everything else!—that we create can include as many potential users as possible.

Guidelines of Accessibility Past

The W3C published the Web Content Accessibility Guidelines (WCAG) 1.0 on 5th May 1999, when most of us were playing Snake on our Nokia 3210s’ 1.5” monochrome screens…a very long time ago in technology terms. From the start, those guidelines proved enlightening for designers and developers who wanted to avoid excluding users from their websites. For example, we learned how to provide alternatives to audio and images, how to structure information, and how to help users to find the information they needed. However, those guidelines were specific to the web technologies of the time, resulting in limitations such as requiring developers to “use W3C technologies when they are available […]”. Also, those guidelines became outdated; I doubt that you, gentle reader, consult their technical documentation about “directly accessible applets” or “Writing for browsers that do not support FRAME” in your day-to-day work.

Guidelines of Accessibility Present

The W3C published the Web Content Accessibility Guidelines (WCAG) 2.0 on 11th December 2008, when most of us were admiring the iPhone 3G’s innovative “iPhone OS 2.0” software…a long time ago in technology terms. Unlike WCAG 1, these guidelines also applied to non-W3C technologies, such as PDF and Flash. These guidelines used legalese and future-proofed language, with terms such as “time-based media” and “programmatically determined”, and testable success criteria. This made these guidelines more difficult for designers and developers to grasp, but also enabled the guidelines to make their way into international standards (see EN 301 549 — Accessibility requirements suitable for public procurement of ICT products and services in Europe and ISO/IEC 40500:2012 Information technology — W3C Web Content Accessibility Guidelines (WCAG) 2.0) and even international law (see EU Directive 2016/2102 … on the accessibility of the websites and mobile applications of public sector bodies).

More importantly, these guidelines enabled designers and developers to create inclusive websites, at scale. For example, in the past 18 months:

The updated Web Content Accessibility Guidelines (WCAG) 2.1 arrived on 5th June last year—almost a 10-year wait for a “.1” update!—and added 17 new success criteria to help bring the guidelines up to date. Those new criteria focused on people using mobile devices and touchscreens, people with low vision, and people with cognitive and learning disabilities.

(If you need to get up to speed with these guidelines, take 36 minutes to read “Web Content Accessibility Guidelines—for People Who Haven’t Read Them” and Web Content Accessibility Guidelines 2.1—for People Who Haven’t Read the Update.)

Guidelines of Accessibility Yet to Come

So, what’s next? Well, the W3C hope to release another minor update (WCAG 2.2) in November 2020. However, they also have a Task Force working on produce major new guidelines with wider scope (more people, more technologies) and fewer limitations (easier to understand, easier to use) in November 2022. These next guidelines will have a different name, because they will cover more than “Web” and “Content”. Andrew Kirkpatrick (Adobe’s Head of Accessibility) named the Task Force “Silver” (because the initials of “Accessibility Guidelines” form the symbol of the silver element).

The Silver Task Force want the next major accessibility guidelines to:

  • take account of more disabilities;
  • apply to more technologies than just the web, including virtual reality, augmented reality, voice assistants, and more;
  • consider all the technologies that people use, including authoring tools, browsers, media players, assistive technologies (including screen readers and screen magnifiers), application software, and operating systems.

That’s quite a challenge, and so the more people who can help, the better. The Silver Task Force wanted an alternative to W3C’s Working Groups, which are made up of employees of organisations who are members of the W3C, and invited experts. So, they created a Silver Community Group to allow everyone to contribute towards this crucial work. If you want to join right now, for free, just create a W3C account.

Like all good designers, the Silver Task Force and Silver Community Group began by researching. They examined the problems that people have had when using, conforming to, and maintaining the existing accessibility guidelines, and then summarised that research. From there, the Silver Community Group drafted ambitious design principles and requirements. You can read about what the Silver Community Group are currently working on, and decide whether you would like to get involved now, or at a later stage.

Emphasise expertise over empathy

Remember that today’s theme is “Promoting the participation of persons with disabilities and their leadership: taking action on the 2030 Development Agenda”. (The United Nations’ 2030 Development Agenda is outside the scope of this article, but if you’re looking to be inspired, read Alessia Aquaro’s article on Public Digital’s blog about how digital government can contribute to the UN’s Sustainable Development Goals.) In line with this theme, if you don’t have a disability and you want to contribute to the Silver Community Group, resist the temptation to try to empathise with people with disabilities. Instead, take 21 minutes during this festive season to enjoy the brilliant Liz Jackson explaining how empathy reifies disability stigmas, and follow her advice.

Choose the right route

I think we can expect the next Accessibility Guidelines to make their way into international standards and international law, just like their predecessors. We can also expect successful companies to apply them at scale. If you contribute to developing those guidelines, you can help to make sure that as many people as possible will be able to access digital information and services, in an era when that access will be crucial to every aspect of people’s lives. As Cennydd Bowles explained in “Building Better Worlds”, “There is no such thing as the future. There are instead a near-infinity of potential futures. The road as-yet-untravelled stretches before us in abundant directions. We get to choose the route. There is no fate but what we make.”


About the author

Alan Dalton worked for Ireland’s National Disability Authority for 9½ years, mostly as Accessibility Development Advisor. That involved working closely with public sector bodies to make websites, services, and information more accessible to all users, including users with disabilities. Before that, he was a consultant and trainer for Software Paths Ltd. in Dublin. In his spare time, he maintains StrongPasswordGenerator.com to help people stay safe online, tweets, and takes photos.

More articles by Alan




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After a 20 year-long wait, Anita Dongre launches her vegan accessory line comprising handbags and belts

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From techno-inspired rave bags to pants that depict neurons, this Chennai-based gender neutral fashion label’s creations are conversation starters

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Public sector – Saab Chalta Hai!




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Aiming for Salman standard

Ruslaan Mumtaz tells us what all he does to have lean and fit body




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Racing against time

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Sail through your run

Running can be injury free and effortless if one is conscious of his/her running form (body mechanics)




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Just what your trainer ordered

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Time to act against early-onset diabetes

Catching diabetes in its early stages could mean lesser complications later




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Hyderabad mountaineer’s Project 3K in Ladakh

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Editorial. Rail Budget’s capex boost welcome, but concerns remain

The Railways must attract higher freight volumes, even as it positions itself as a high end passenger travel option




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Editorial. Overall rain surplus but spatial, temporal spread concerning

While the IMD has strived to improve its predictive models, global warming is the wild card factor




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Editorial. SEBI right in trying to restrict retail F&O punts

These punts result in flight of capital too, as the counter-parties are often global algo-trading and high frequency shops




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Editorial. TRAI rules can ring in better telecom service quality

The changes promise a better user experience, with faster load times for web pages and smoother live streams




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Editorial. Clinical trials waiver for some drugs raises questions

The Centre should not relax its clinical trials norms unless the situation is exceptional or dire




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Editorial. E-commerce bogey, again

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Editorial. SEBI’s take on household financial savings clears the air

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Editorial. Labour pains

PLFS data show worrying trends in job quality