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Degradation of tetracycline by visible light using Ca2Nb2O7 composite oxides with perovskite and pyrochlore sub-crystalline phases

CrystEngComm, 2024, Advance Article
DOI: 10.1039/D4CE00044G, Paper
Junwei Xu, Chengxin Lu, Xianfeng Zhang, Rumeng Ouyang, Xiuzhong Fang, Xianglan Xu, Xiang Wang
We synthesized two paramorphs of Ca2Nb2O7 for visible light degradation of tetracycline, and found that pyrochlore phase has better reactivity compared to perovskite phase, which is attributed to the intrinsic oxygen vacancies and lattice disorder of pyrochlore phase.
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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S-scheme heterojunction based on CuWO4/WO3 microspheres with improved photocatalytic property under visible light

CrystEngComm, 2024, Accepted Manuscript
DOI: 10.1039/D4CE00301B, Paper
Yangang Sun, Jianhua Ge, jiaqi xu, Jinguo Wang
Dye wastewater green treatment has always been one of the research hotspots in the environmental protection and remediation field. The photocatalytic degradation and mineralization of organic dyes are considered to...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Meta launches more parental supervision tools for Instagram. Is it enough?

Many of the features require minors and their parents to opt in, raising questions about how effective the measures are




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I&B Ministry issues advisory to media and social media platforms ahead of Ram temple consecration ceremony

This comes after the Ministry observed that certain fake and unverified messages are being spread, especially on social media.




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GST payers get communication to first show irreversible ITC and then reverse, experts advise caution in filing Nov GSTR-3B

In August 2022 this year, Central Board of Indirect Taxes & Custom (CBIC) issued a detailed clarification on reporting of information about reversal of ITC as well as ineligible ITC




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More than 5.57 lakh cos struck off due to non-compliance with companies law provisions

A special task force has recommended the use of certain red flag indicators as alerts to identify shell companies




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Ten places to visit in Norway

JOSEPH ANDREWS lists some of Scandinavia’s most striiking destinations




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Journeymen from Europe visit Coimbatore during their travels in India

Journeymen Wesley and Diana, called Wandergesellen in German, are in India for the last leg of their journey



  • Life & Style

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Swedish delegation visits Kerala University

Delegation explores research and exchange opportunities in social sciences, management studies, and humanities




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Penguin death: activist writes to global bodies seeking intervention




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Fadnavis SOS to Modi, seeks seven exemptions




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Ajit Pawar, Fadnavis slam MVA for suggesting they covet CM Shinde’s chair

‘Eknath Shinde-led Shiv Sena- BJP-Ajit Pawar’s NCP faction ‘Mahayuti’ government a strong force intent on development’




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6 must-visit places in Mumbai for an exciting weekend

From a brand-new cocktail bar in Bandra to a menu inspired by the Kerala spice trade, we’ve got all your cravings covered




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BJP is trying to convince rebel candidates to withdraw in Maharashtra: Fadnavis

Maharashtra Deputy CM admits that there will be friendly fights in some seats, though BJP is trying to help rebel withdraw their names; BJP, Sena wll support Amit Thackeray of the MNS for the Mahim seat




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Fadnavis expresses confidence in convincing rebels to stick to the BJP  

Devendra Fadnavis is contesting from the Nagpur South-West Assembly constituency in the upcoming Maharashtra election




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Grover Zampa Vineyards to open Nashik winery to visitors early next year

The company will expand the production capacity of its Nashik winery from 500,000 litres to 1.25 million litres in the next 18 months




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Salman Visits Eknath Shinde's Home For Ganpati Darshan

Film folk visited Maharashtra Chief Minister Eknath Shinde's residence for Ganpati darshan over the weekend.




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Japanese PM to visit Peru, Brazil for APEC and G20 Summit




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No longer one-sided beneficiary of alliance with US: South Korean National Security Advisor




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Vistara merger with Air India takes off, Group to now operate 300 aircraft




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Gujarat CM to unveil Rs 5 billion worth of projects during his Vadodara visit




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Amazon Web Services India vision: Investing in cloud and local partnerships for economic growth

Our planned investment will contribute $23.3 billion to India’s GDP by 2030, and support approximately 1,31,700 full-time jobs annually at local businesses, says Chris Casey of AWS




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Indian IT industry confident amid potential Trump return, sees reduced H1B visa dependency

 The U.S. remains the largest market for India’s IT exports, contributing 55% of its $200 billion in IT-BPM exports.




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Catalyst- and base-free visible light-enabled radical relay trihalomethylation/functional group-migration/carbonylation with CX3SO2Cl

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00292J, Paper
Jinkai Hu, Chenglei Yang, Xiaotao Qin, Hui Liu, Tongtong Ma, Ao-tong Shi, Qing-Long Lv, Xingman Liu, Jinhui Yang, Dianjun Li
A visible light-enabled photocatalyst-free radical trihalomethylation/cyano (or benzo[d]thiazol-2-yl) 1,4-migration/carbonylation reaction of 2-hydroxy-2-hex-5-enenitrile (or (benzo[d]thiazol-2-yl)-pent-4-enol) with CX3SO2Cl (X = F, Cl) is reported.
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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Revisiting Biginelli-like Reactions: Solvent Effects, Mechanisms, Biological Applications and Correction of Several Literature Reports

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00272E, Paper
Brenno A. D. Neto, Pedro Beck, Arthur Leitão, Yasmin Santana, Jose R. Correa, Carime Vitória da Silva Rodrigues, Daniel Machado, Guilherme Matos, Luciana Machado Ramos, Claudia Cristina Gatto, Carlos Kleber Z. Andrade, Sarah Caldas
This study critically reevaluates reported Biginelli-like reactions using a Kamlet-Abboud-Taft-based solvent effect model. Surprisingly, structural misassignments were discovered in certain multicomponent reactions, leading to the identification of pseudo three-component derivatives...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Tetrabutylammonium decatungstate (TBADT), a compelling and trailblazing catalyst for visible-light-induced organic photocatalysis

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00171K, Review Article
Bor-Cherng Hong, Ranadheer Reddy Indurmuddam
This review summarizes recent developments in visible-light or near-visible-light photocatalysis reactions enabled by the TBADT catalyst.
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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Visible light-driven photocatalytic sulfonative oxidation of benzyl secondary amines

Org. Biomol. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4OB00348A, Paper
Yong-Xiang Lü, Xinqian Wang, Ying-Ming Pan, Keyume Ablajan
A method for the α-oxidation and sulfonation of benzyl secondary amines was developed utilizing Ir(III) or Eosin Y as the photocatalyst in the presence of O2 as a green oxidant....
The content of this RSS Feed (c) The Royal Society of Chemistry




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Cabin crew with an invisible cape 

Being a cabin crew member is not a mere job, but an ineffable life experience




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Wellness retreat that King Charles and Queen Camilla visited in Bengaluru to soon expand to Portugal 

King Charles III and Queen Camilla, who left the retreat after a three-day rejuvenation session, are happy with the expansion plans as this would be closer to the UK, says holistic health practitioner Issac Mathai, who runs the facility




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Stop abuse of patent monopolies in rare diseases, say patient representatives and treatment activists 

They seek urgent intervention by government, courts, and lawmakers into the issue  




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'I am Brahma, Vishnu, Mahesh!'

'I am a straight 3.0 version!'




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'Nobody Expected Armaan To Slap Vishal'

'It is difficult to understand Armaan's game plan because there is a vast difference between what he says and what goes on in his head.'




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A Visionary Leader in Technology and Solutioning: Senthil Babu

As Captiv Techno Solutions continues to unveil its cutting-edge AI-based products, industry observers are keenly monitoring how Babu and his team will shape the future of technology.




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Review unlocking power of people analytics: Vibhu Verma's vision for data-driven workforce

People analytics focuses on leveraging employee data to identify patterns, assess performance, and understand the factors driving engagement and retention.




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The roots of legacy: A visit to Thanjavur Quartet's house

Jagyaseni Chatterjee goes on the trail of Bharatanatyam's roots




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A new approach to visioning




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Centre revises wheat stock limits to rein in prices, hoarding

Ministry directs all wheat stocking entities to register on government’s wheat stock limit portal and update the stock position every Friday




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Ask LukeW: PDF Parsing with Vision Models

Over the years, I've given more than 300 presentations on design. Most of these have been accompanied by a slide deck to illustrate my points and guide the narrative. But making the content in these decks work well with the Ask Luke conversational interface on this site has been challenging. So now I'm trying a new approach with AI vision models.

To avoid application specific formats (Keynote, PowerPoint), I've long been making my presentation slides available for download as PDF documents. These files usually consist of 100+ pages and often don't include a lot of text, leaning instead on visuals and charts to communicate information. To illustrate, here's of few of these slides from my Mind the Gap talk.

In an earlier article on how we built the Ask Luke conversational interface, I outlined the issues with extracting useful information from these documents. I wanted the content in these PDFs to be available when answering people's design questions in addition to the blog articles, videos and audio interviews that we were already using.

But even when we got text extraction from PDFs working well, running the process on any given PDF document would create many content embeddings of poor quality (like the one below). These content chunks would then end up influencing the answers we generated in less than helpful ways.

To prevent these from clogging up our limited context (how much content we can work with to create an answer) with useless results, we set up processes to remove low quality content chunks. While that improved things, the content in these presentations was no longer accessible to people asking questions on Ask Luke.

So we tried a different approach. Instead of extracting text from each page of a PDF presentation, we ran it through an AI vision model to create a detailed description of the content on the page. In the example below, the previous text extraction method (on the left) gets the content from the slide. The new vision model approach (on the right) though, does a much better job creating useful content for answering questions.

Here's another example illustrating the difference between the PDF text extraction method used before and the vision AI model currently in use. This time instead of a chart, we're generating a useful description of a diagram.

This change is now rolled out across all the PDFs the Ask Luke conversational interface can reference to answer design questions. Gone are useless content chunks and there's a lot more useful content immediately available.

Thanks to Yangguang Li for the dev help on this change.




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A Visual Approach to Help Pages

As the functionality and scope of Web sites and applications has grown over the years, so has the prevalence of Help pages. Nearly every feature has an explanatory article outlining how to use it and why. But most Help pages are walls of text making them hard to act on. So a few years ago, we tried something different.

First let's look at the status quo. This Help page from Amazon is both pretty typical and by those standards, pretty good. It's specific to one topic, brief, outlines steps clearly, and includes links to help people accomplish their intended task. Companies iterated to these kinds of Help pages because they mostly work and because they're less work.

Keeping Help text up to date and accurate is less labor-intensive than updating images or videos with the same information. But as the old saying goes, a picture is worth a lot of words and there's a reason many people turn to video tutorials to learn how to do things instead of reading about how to do them.

When building Polar several years ago, we wanted a more approachable and fun way of helping people learn how to use our product. And while you might say "the best Help pages are no Help pages -just make your app easy to use" not all Help pages are smearing over usability issues. Some introduce higher level concepts, others outline capabilities, and some serve as marketing for specific features.

So with those goals in mind, we iterated to a simple formula. Each concept or feature gets a Help page that has a title alongside 1-2 sentences and as many sections consisting of a title, 1-2 sentences, plus a graphic as needed.

This approach meant people primarily relied on images (or their alt tags if visually impaired) to figure out how to get things done. So we iterated a fair amount on the images to find the right balance of detail and abstraction. Make the UI too realistic and it becomes hard to focus on the relevant elements. Realistic UI images also need updating anytime the actual product UI changes. Conversely, make the image too simplistic and it doesn't provide enough detail for people to actually learn how to do things.

Of course, not all Help topics are well suited to an image but the process of trying to create one often triggers ideas on how to simplify the actual UI or concepts within a product. So it's worth the iteration.

But is a visual approach to Help pages able to scale? Assuming it works, can companies invest the time and effort needed to generate all these images and keep them up to date? Perhaps in a time of image generation AI models, it's increasingly possible through automated or supervised pipelines. Time will tell!




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‘Samajavaragamana’ movie review: Sree Vishnu and Naresh shine in this humorous family drama

Director Ram Abbaraju’s ‘Samajavaragamana’ offers plenty of laughs that override the film’s shortcomings. Sree Vishnu and Naresh are a riot




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Reservation reelism : redfacing, visual sovereignty, and representations of Native Americans in film / Michelle H. Raheja.

Lincoln : University of Nebraska Press, [2010]




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A Chinese-English dictionary : Hakka-dialect as spoken in Kwang-tung province / prepared by D. MacIver ; revised and rearranged with many additional terms and phrases by M.C. Mackenzie, E.P. Mission, Wu-king-fu.

Taiwan : SMC Publishing Inc., 1991.




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Henry Moore : in the light of Greece / exhibition curator, Roger Cardinal ; catalogue editorial supervision and co-ordination, Kyriakos Koutsomallis, Elizabeth Plessa.

Andros : Basil and Elise Goulandris Foundation, [2000]




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Theology, modernity, and the visual arts / edited by Ben Quash and Chloë Reddaway.

Turnhout : Brepols, [2024]




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Examining Heisei Japan / supervised by Kitaoka Shinichi.

Tokyo : Japan Publishing Industry Foundation for Culture (JPIC), 2021-2023.




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The history of Japan. 16, Towards a more diverse society : from the Heisei era to the Reiwa era / editorial supervisor, Kaoru Iokibe ; cover and manga illustrations, Kou Yaginuma.

Chiyoda-ku, Tokyo, Japan : Japan Publishing Industry Foundation for Culture (JPIC), 2023.




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Reinhold Niebuhr revisited : engagements with an American original / edited by Daniel F. Rice.

Grand Rapids, Mich. : W.B. Eerdmans Pub. Co., 2009.




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Witness through troubled times : a history of the Orthodox Church of Georgia, 1811 to the present / with contributions by Zaza Abashidze [and four others] ; edited by Tamara Grdzelidze, Martin George & Lukas Vischer.

London : Bennett & Bloom, 2006.




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Novel high-efficiency near-infrared phosphor CaZrTaGaO7:Cr3+ and its application in night vision and anti-counterfeiting

Mater. Chem. Front., 2024, 8,3608-3615
DOI: 10.1039/D4QM00558A, Research Article
Xue Meng, Zhijun Wang, Xiaoxue Huo, Mingxin Zhou, Yu Wang, Panlai Li
NIR phosphor CaZrTaGaO7:Cr3+ shows high internal quantum efficiency (IQE: 90.7%) and high thermal stability (84.8% at 423 K), enabling it for application in night vision, anti-counterfeiting, etc.
The content of this RSS Feed (c) The Royal Society of Chemistry




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WIRED Visits Olafur Eliasson's Berlin Studio

A rare insight into the creative workings of Eliasson’s Berlin based studio, by the artist himself.