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Persulfate promoted regioselective C-1 thiocyanation of imidazo[1,5-a]pyridines under visible light irradiation in water

New J. Chem., 2024, 48,7041-7044
DOI: 10.1039/D4NJ00327F, Communication
Pallavi Saha, Samarpita Das, Harish K. Indurthi, Rohit Kumar, Deepak K Sharma
A visible light-mediated, photocatalyst-free, persulfate-promoted approach has been explored for regioselective C-1 thiocyanation of imidazo[1,5-a]pyridines.
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Enantioselective enrichment of chiral 1-phenylethanol in the camphor-based chiral metal–organic framework CFA-22

CrystEngComm, 2024, 26,2051-2055
DOI: 10.1039/D4CE00181H, Communication
Richard Röβ-Ohlenroth, Katharina Knippen, Maryana Kraft, Dirk Volkmer
The novel enantioselective CFA-22 metal–organic frameworks were successfully developed and investigated for chiral adsorption separation of e.g. racemic 1-phenylethanol.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Researchers observes what exactly happens at beginning of possible endosymbiosis




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Supreme head of Jacobite Syrian Christian Church Mor Baselios Thomas I passes away




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Cu(OTf)2/HFIP catalyzed regioselective cycloisomerization of indole-C3-functionalized alkynols to carbazoles

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00421C, Communication
Srinivasarao Yaragorla, Tabassum Khan, Sayonika Chakroborty
We report here a simple and atom economic cycloisomerization reaction of indole-tethered alkynols for constructing diverse carbazoles via 1,2-alkly migration using Cu(OTf)2/HFIP as the excellent promoter system.
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Regioselective synthesis of 4-arylamino-1,2-naphthoquinones in eutectogel as a confined reaction medium using LED light

Org. Biomol. Chem., 2024, Advance Article
DOI: 10.1039/D4OB00140K, Communication
R. Vara Prasad, Yogendra Kumar, R. Arun Kumar, Tohira Banoo, Subbiah Nagarajan
The use of a simple carbohydrate-derived eutectogel facilitating a LED-light-induced regioselective synthesis of 4-arylamino-1,2-naphthoquinones in good yields is reported.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Stop iOS10 browser auto-locking

I had twitter open the other day and I had to put my phone down and attend to something else, the timeline happened to be on a looping gif video and I noticed when I came back that my phone was still awake and unlocked the fact that video was in view kept the phone … Continue reading "Stop iOS10 browser auto-locking"




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iOS18 Photos: Tab Bar to Single Scroll View

The most significant user interface change from iOS 17 to iOS 18 are the navigation differences in Apple's Photos app. The ubiquitous tab bar that's became the default navigation model in mobile apps is gone and in its place is one long scrolling page. So how does it work and why?

Most mobile applications have adopted a bottom bar for primary navigation controls. On Android it's called bottom navigation and on iOS, a tab bar, but the purpose is the same: make the top-level sections of an application visible and let people move between them.

And it works. Across multiple studies and experiments, companies found when critical parts of an application are made more visible, usage of them increases. For example, Facebook saw that not only did engagement go up when they moved from a “hamburger” menu to a bottom tab bar in their iOS app, but several other important metrics went up as well. Results like this made use of tab bars grow.

But in iOS 18, Apple removed the tab bar in their Photos app. Whereas the prior version had visible tabs for the top-level sections (Library, For You, Albums, Search), the redesign is just a single scroll view. The features previously found in each tab are now accessed by scrolling up and down vs. switching between tabs. One notable exception is Search which stays anchored at the top of the screen.

In addition to the persistent Search button, there's also a Select action and user profile image that opens a sheet with account settings. As you scroll up into your Photo library a persistent set of View controls appears at the bottom of the screen as well. The Close action scrolls you to the end of your Photo library and reveals a bit of the actions below making the location of features previously found in tabs more clear.

It's certainly a big change and given the effectiveness of tab bars, its also a change that has people questioning why? I have no inside information on Apple's decision-making process here but based on what I've learned about how people use Google Photos, Yahoo! Photos, and Flickr, I can speculate.

  1. By far the dominant use of a Photo gallery is scrolling to find an image whether to share, view, or just browse.
  2. Very few people organize their photo libraries and those that do, do it rarely.
  3. People continue to have poor experiences with searching images, despite lots of improvements, so they default to browsing when trying to find photos.
  4. Most automatic curation features like those found in For You just get ignored.

All that together can easily get you to the design answer of "the app should just be a scrolling list of all your Photos". Of course there's trade-offs. The top-level sections, and their features are much less visible, and thereby less obvious. The people who do make use of features like Albums and Memories now need to scroll to them vs. tapping once. But as iOS18 rolls out to everyone in the Fall, we'll see if these trade-offs were worth it.




ios

Acer Predator Helios 300 SpatialLabs launched in India

The premium gaming laptop supports glasses-free 3D gaming




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Here's everything to expect in Apple's new iOS14

Here’s what to expect in your next iPhone update.




ios

Mg separation from samples with very high Ca/Mg ratios for Mg isotope analysis

J. Anal. At. Spectrom., 2024, 39,2767-2773
DOI: 10.1039/D4JA00266K, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Niklas Keller, Michael Tatzel
We present an efficient method to separate Mg from samples with high Ca/Mg matrices for the analysis of Mg isotope ratios. By utilising the automated sample purification system prepFAST, the labour is substantially minimised.
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Apple complies with Censors in China and removes two RSS Feeds from their iOS App Store

It is reported today in Hong Kong that more RSS apps are disappearing from Apples App Store in China in a new crackdown on feed readers. Apple removed two additional apps that pull content from RSS feeds, allowing Chinese users to access articles that might normally be blocked by the countrys Great Firewall.

Fiery Feeds and Reeder both acknowledged on Twitter that their iOS apps had been removed in the country. They cited a 2017 tweet by Inoreader, another popular RSS service, which posted a letter from Apple saying its app was removed in China because it included content that is illegal in the country. Inoreader said the entire service was blocked in April this year.




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The most beneficial Worldwide Romantic relationship Apps Just for Ios And Android

Content Buy A Mexican Spouse What’s The Worldwide Trafficking Of Girls Here the registration is certainly free, you can even produce a profile, put your picture and consider profiles of Asian ladies with out being charged. To get access to excellent tools, individuals have to acquire credits. This sort of tools while contact demands, flower […]




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BlackBerry ‘pauses’ global rollout of BBM for Android, iOS




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Synergistic in situ growth of a MOF on the surface of Ti3C2Tx MXene nanosheets with different tannic acid (TA) ratios for the photocatalytic degradation of pollutants

J. Mater. Chem. C, 2024, 12,17620-17634
DOI: 10.1039/D4TC02771J, Paper
Huanggen Yang, Pei Zhang, Qi Zheng, Asif Hayat, Hisham S. M. Abd-Rabboh, Saleem Raza, Duofu Li, Yan Sui
The integration of a two-dimensional (2D) transition metal carbide (MXene) with metal–organic frameworks (MOFs) presents a promising avenue for addressing the limitations of MXene materials in various applications.
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Nanoplasmonic biosensors for environmental sustainability and human health

Chem. Soc. Rev., 2024, 53,10491-10522
DOI: 10.1039/D3CS00941F, Review Article
Wenpeng Liu, Kyungwha Chung, Subin Yu, Luke P. Lee
This review examines recent developments in nanoplasmonic biosensors to identify analytes from the environment and human physiological parameters for monitoring sustainable global healthcare for humans, the environment, and the earth.
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Enantioselective synthesis of molecules with multiple stereogenic elements

Chem. Soc. Rev., 2024, 53,11165-11206
DOI: 10.1039/D3CS00238A, Review Article
Open Access
Arthur Gaucherand, Expédite Yen-Pon, Antoine Domain, Alix Bourhis, Jean Rodriguez, Damien Bonne
This review explores the fascinating world of molecules featuring multiple stereogenic elements, unraveling the different strategies designed over the years for their enantioselective synthesis.
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Madras Week | Pose at one of Chennai’s oldest photo studios, thriving since 1930 despite the age of selfies

From glass negatives to daguerreotype cameras, 92-year-old Sathyam Studios in Mylapore is a testament to Madras’ rich history with photography



  • History & Culture

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Volatility, Valuation Ratios, and Bubbles: An Empirical Measure of Market Sentiment [electronic journal].




ios

Solving heterogeneous agent models in discrete time with many idiosyncratic states by perturbation methods [electronic journal].




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Revista de Estudios Políticos y Estratégicos [electronic journal].

Universidad Tecnologica Metropolitana




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Revista de Estudios Jurídicos y Criminológicos [electronic journal].

Universidad de Cádiz




ios

Revista científica anfibios [electronic journal].

Escuela de Formación de Infanteria de Marina (EFIM)




ios

Religiosity and Terrorism: Evidence from Ramadan Fasting [electronic journal].




ios

Optimal Taxes on Capital in the OLG Model with Uninsurable Idiosyncratic Income Risk [electronic journal].

National Bureau of Economic Research




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Mergers and Innovation Portfolios [electronic journal].




ios

In Crisis, We Pray: Religiosity and the COVID-19 Pandemic [electronic journal].




ios

Idiosyncratic shocks: a new procedure for identifying shocks in a VAR with application to the New Keynesian model [electronic journal].




ios

Five Facts About Beliefs and Portfolios [electronic journal].

National Bureau of Economic Research




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Espacios en blanco. Serie indagaciones [electronic journal].

Núcleo de Estudios Educacionales y Sociales; Facultad de Ciencias Humanas; Universidad Nacional del Centro de la Provincia de Buenos Aires




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Devotion and Development: Religiosity, Education, and Economic Progress in 19th-Century France [electronic journal].




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Characteristics of Mutual Fund Portfolios: Where Are the Value Funds? [electronic journal].

National Bureau of Economic Research




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Bioscience journal [electronic journal] : BJ.

Uberlândia, MG, Brazil : Universidade Federal de Uberlândia, [1998]-




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Betting on the Lord: Lotteries and Religiosity in Haiti [electronic journal].




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Asklepios Kliniken GmbH & Co. KGaA MarketLine Company Profile [electronic journal].

Marketline




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Arte & Ensaios [electronic journal].

Universidade Federal do Rio de Janeiro




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Ahammune Biosciences raises Pre-Series A funding from Ideaspring Capital, Indian Angel Network




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Unified enantiospecific synthesis of drimane meroterpenoids enabled by enzyme catalysis and transition metal catalysis

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC06060A, Edge Article
Open Access
Yipeng You, Xue-Jie Zhang, Wen Xiao, Thittaya Kunthic, Zheng Xiang, Chen Xu
A unified synthetic strategy for drimane meroterpenoids was developed by combining heterologous biosynthesis, enzymatic oxidation, and transition metal catalysis. Six drimane meroterpenoids were synthesized in a concise and enantiospecific manner.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Pd(II)-Catalyzed Enantioselective C-H Olefination and Photoregulation of Sterically-Hindered Diarylethenes

Chem. Sci., 2024, Accepted Manuscript
DOI: 10.1039/D4SC05375C, Edge Article
Open Access
Guanlun Zhang, Xu Wu, Shiyu Mao, Mengqi Li, Honglong Hu, Bing-Feng Shi, Weihong Zhu
Sterically-hindered diarylethenes with intrinsic chirality have shown great potential in chiral signal regulation, light-controlled liquid crystals (LCs), etc. Their unique enantiospecific phototransformation between axial chirality of ring-open isomer and central...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Enantioselective dearomative formal (3+3) cycloadditions of bicyclobutanes with aromatic azomethine imines: access to fused 2,3-diazabicyclo[3.1.1]heptanes

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC06334A, Edge Article
Open Access
Xue-Chun Yang, Feng Wu, Wen-Biao Wu, Xu Zhang, Jian-Jun Feng
We present the first enantioselective dearomative (3+3) cycloadditions of bicyclobutanes (BCBs) utilizing a chiral Lewis acid catalyst and bidentate chelating BCB substrates.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Analysis of the cryptic biosynthetic gene cluster encoding the RiPP curacozole reveals a phenylalanine-specific peptide hydroxylase

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC02262A, Edge Article
Open Access
Samantha Hollands, Julia Tasch, David J. Simon, Dimah Wassouf, Isobel Barber, Arne Gessner, Andreas Bechthold, David L. Zechel
The noncanonical biosynthesis of curacozole by Streptomyces curacoi is shown to be dependent on the bldA-encoded Leu-tRNAUUA. The minimal biosynthetic gene cluster is defined, and the functions of key biosynthetic enzymes are established in vitro.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Regioselectivity switches between anthraquinone precursor fissions involved in bioactive xanthone biosynthesis

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC06369D, Edge Article
Open Access
Xiao Jing Lv, Chun Zhi Ai, Li Rong Zhang, Xiu Xiu Ma, Juan Juan Zhang, Jia Peng Zhu, Ren Xiang Tan
BruN and BTG13 cleave chrysophanol hydroquinone into monodictyphenone and cephalanone F, respectively, with the regioselectivities found tunable via the key amino acid (AA) substitution strategy.
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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Differentiating carrier protein interactions in biosynthetic pathways using dapoxyl solvatochromism

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC05499G, Edge Article
Open Access
Matthew G. Miyada, Yuran Choi, Kyle Rich, James J. La Clair, Michael D. Burkart
A highly sensitive solvatochromic system was developed to monitor the loading and interactivity of carrier proteins associated with fatty acid, polyketide and non-ribosomal peptide biosynthesis.
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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Malankara Metropolitan Joseph Gregorios to lead Jacobite Syrian Church temporarily




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Kerala State Sports & Games 2024: curiosity pulls in more people to baseball games

Though not a very popular game like cricket, more youngsters are getting drawn into the sport, says a baseball coach




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Construction of a three-mode sensor based on gold nanoparticles and carbon quantum dots as probes for the detection of thiosemicarbazone

Anal. Methods, 2024, 16,2127-2134
DOI: 10.1039/D4AY00256C, Paper
Zhili Liu, Xiaojun Wang, Jing Li, Wenfeng Zhou, Haixiang Gao, Runhua Lu
A three-mode sensor for thiocarbazone (TSC) was constructed based on gold nanoparticles and carbon quantum dots (CQDs). (A) Synthesis process of CQDs using ginkgo leaves. (B) Colorimetric and chrominance TSC detection. (C) Fluorescence detection of TSC.
The content of this RSS Feed (c) The Royal Society of Chemistry




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One-step electrodeposited hybrid nanofilms in amperometric biosensor development

Anal. Methods, 2024, Advance Article
DOI: 10.1039/D4AY00290C, Tutorial Review
Yuliya E. Silina
This review summarizes developments in amperometric biosensors with electrodeposited sensing films. It was shown how the analytical merit of one-step designed biosensors can be controlled by the change of chemical factors within the same engineering platform.
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A Rapid and Sensitive Aptamer-Based Biosensor for Beta-lactoglobulin in milk

Anal. Methods, 2024, Accepted Manuscript
DOI: 10.1039/D4AY00460D, Paper
Anqi Liu, Meng Jiang, Yuyin Wu, Han Guo, Ling Kong, Zhiwei Chen, Zhaofeng Luo
β-Lactoglobulin, a naturally occurring milk protein and a major cause of milk allergy in infants, was the focus of this study. A highly selective, sensitive, and cost-effective BLI biosensor was...
The content of this RSS Feed (c) The Royal Society of Chemistry




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A Multimode Biosensor Based on Prussian Blue Nanoparticle Loaded with Gold Nanoclusters for the Detection of Aflatoxin B1

Anal. Methods, 2024, Accepted Manuscript
DOI: 10.1039/D3AY02330C, Paper
zhaodi Fu, juan Huang, Wei Wei, zhihui Wu, Xingbo Shi
Herein, a novel fluorescent/colorimetric/photothermal biosensor is proposed for aflatoxin B1 (AFB1) detection in food based on Prussian blue nanoparticles (PBNPs) (~50 nm), gold nanocluster (AuNCs) and aptamer (Apt) within three...
The content of this RSS Feed (c) The Royal Society of Chemistry




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An overview of electrochemical biosensors used for COVID-19 detection

Anal. Methods, 2024, 16,2164-2176
DOI: 10.1039/D3AY02042H, Minireview
Tatiana Lima Valerio, Raquel Anastácio, Stella Schuster da Silva, Carolina Camargo de Oliveira, Marcio Vidotti
This short review presents the latest advances in the field of electrochemical biosensors, focusing particularly on impedimetric biosensors for the direct measurement of analytes.
The content of this RSS Feed (c) The Royal Society of Chemistry