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Synthesis of oxa-bridged carbocycles via rhodium/Lewis acid catalyzed [3 + 3] and [4 + 3] cycloadditions of carbonyl ylides with donor–acceptor strained carbocycles

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01831A, Research Article
Jiale Li, Lingfei Wang, Pei-Nian Liu, Xingguang Li
A method for cooperative rhodium/Lewis acid-catalyzed cycloadditions of carbonyl ylides with donor–acceptor (D–A) strained carbocycles is described. It affords structurally diverse oxa-bridged carbocycles with high efficiency and stereoselectivity.
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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DFT investigation of the mechanism and role of N-heterocyclic carbene (NHC) in constructing asymmetric organosilanes using NHC-catalyzed [4+2] cycloaddition reaction

RSC Adv., 2024, 14,35475-35489
DOI: 10.1039/D4RA03676J, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Batoul Alipour
The mechanism and origin of stereoselectivity for the synthesis of asymmetric organosilanes using NHC are theoretically investigated.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Development of Polyoxometalate-loaded MOF for Heterogeneous Catalysis and Enhanced Dye Adsorption

Dalton Trans., 2024, Accepted Manuscript
DOI: 10.1039/D4DT02645D, Paper
Ketan Maru, Sarita Kalla, Ritambhara Jangir
The study focuses here on the enhancement of MIL-117 functionality by incorporating well-known polyoxometalate (POM); tetrabutylammonium octamolybdate [(n-C4H9)4N]4[Mo8O26]. Using an encapsulation method with conventional heating, Mo8O264- anions were first time...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Stable homogeneous silver(I) catalysts for the highly efficient cycloaddition of azides onto terminal alkynes in water

Dalton Trans., 2024, Accepted Manuscript
DOI: 10.1039/D4DT02825B, Communication
Meysam Kakavand, Anna Kozakiewicz, Abdollah Neshat
To develop stable and efficient silver(I) catalysts and evaluate the role of sulfur and phosphorus donor ligands in the catalytic cycloaddition of selected organic azides and alkynes (AAC), a series...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Asymmetric magnetic nanosnowman loaded with AgPd nanocage toward NIR-enhanced catalytic activity

Dalton Trans., 2024, 53,17864-17879
DOI: 10.1039/D4DT02425G, Paper
Jie Jin, Haoran Li, Hongfa Wang, Qunling Fang, Yunqi Xu, Weili Kong, Xia Chen, Ken Cham-Fai Leung, Hailong Wang, Shouhu Xuan
An asymmetric Fe3O4@AgPd/PDA nanosnowman embedded with an AgPd nanocage shows significantly enhanced catalytic activity under near-infrared (NIR) light.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Your stone-age brain in the screen age [electronic resource] : coping with digital distraction and sensory overload / Richard E. Cytowic.

Cambridge, Massachusetts : The MIT Press, [2024]




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Preparation and practical applications of a phosphate capture material with FeO(OH)-loaded polyurethane

Environ. Sci.: Water Res. Technol., 2024, Accepted Manuscript
DOI: 10.1039/D4EW00696H, Paper
Hao Li, Ruidong Tao, Zihan Liu, Mengjie Qu, Hui Pan, Mingming Zheng, Yunjun Mei
Metal (hydro) oxide particles with efficient phosphate removal properties are widely used in the treatment of eutrophic waters (mainly phosphorus). However, the disadvantages of easy agglomeration and difficult separation limit...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Synthesis of hollow sphere structured TiO2 loaded with Ag2O and its photocatalytic activity

React. Chem. Eng., 2024, 9,861-871
DOI: 10.1039/D3RE00473B, Paper
Hejin Liu, Ying Liu, Xueqin Wang, Peng Qiao, Wenyi Wang, Mei Zhang, Yanxiu Liu, Hua Song
Owing to its high stability and catalytic activity, TiO2 has been widely used as a photocatalyst where its photocatalytic performance can be significantly improved by microstructure regulation and semiconductor loading.
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Lazy Loading Images for Flexslider

Flexslider is one of the most used sliders, for good reason. This snippet helps lazy load your images. In order to create a perceived performance for users, we as authors shouldn’t allow the loading of every single image at once for sliders or carousels. In this snippet we only load the first and second image on init window load. This ... Read more

The post Lazy Loading Images for Flexslider appeared first on Web Design Weekly.




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Load a Different Header in WordPress

This little snippet can come in handy when you need to serve a different header on a per page basis. All you need to do is create a new header file – header-yourfilename.php and then put in some logic in your desired template file. In my case I have a header file called header-home.php and in my homepage template I ... Read more

The post Load a Different Header in WordPress appeared first on Web Design Weekly.




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Cycloaddition of CO2 with epoxides into cyclic carbonates catalyzed by a binary organocatalyst under mild conditions

Catal. Sci. Technol., 2024, 14,6215-6223
DOI: 10.1039/D4CY00639A, Paper
Wen-Wang Yu, Xiang-Guang Meng, Zi-Yu Gan, Wen Li, Yu-Lian Zhang, Jie Zhou
Highly efficient capture and conversion of CO2 into cyclic carbonates from flue gas under atmospheric pressure.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Fundamental studies of ruthenium species supported on boron nitride nanotubes: metal loading and pretreatment effects on CO oxidation

Catal. Sci. Technol., 2024, 14,6198-6206
DOI: 10.1039/D4CY00945B, Paper
Jinwon Choi, Amol Pophali, Byeongseok Kim, Kwangsuk Yoon, Thomas You-Seok Kim, Hocheol Song, Sang Eun Shim, Jaewoo Kim, Taejin Kim
RuOx/BNNT catalysts were prepared with varying metal loadings and under oxidation and reduction conditions. RuOx/BNNT showed superior catalytic activity than Ru/BNNT. The catalyst will be favorable to the ER mechanism over the LH mechanism.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Effect of metal loading sequences in CO2 methanation activity on samarium-doped ceria supported bimetallic catalysts

Catal. Sci. Technol., 2024, Advance Article
DOI: 10.1039/D4CY01007H, Paper
Andrew C. Chien, Corinna C. Chi
The La/Ni/SDC catalyst from one pot microwave-heating gives higher methanation activity than La–Ni/SDC and Ni–La/SDC from stepwise heating.
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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Enhanced antifungal activity of siRNA-loaded anionic liposomes against the human pathogenic fungus Aspergillus fumigatus

Nanoscale, 2024, Advance Article
DOI: 10.1039/D4NR03225J, Communication
Open Access
Yidong Yu, Theresa Vogel, Sina Hirsch, Jürgen Groll, Krystyna Albrecht, Andreas Beilhack
Application of anionic liposomes co-loaded with amphotericin B and siRNA demonstrates a temporary antifungal effect lasting 3–4 days, highlighting their therapeutic potential.
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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Correction: Clodronate-nintedanib-loaded exosome–liposome hybridization enhances the liver fibrosis therapy by inhibiting Kupffer cell activity

Biomater. Sci., 2024, Advance Article
DOI: 10.1039/D4BM90028F, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Keqin Ji, Mingrui Fan, Dong Huang, Lingna Sun, Bingqin Li, Ruoting Xu, Jiajing Zhang, Xuan Shao, Yanzuo Chen
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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Apple releases iOS 16.1.1. Here’s how to download

6 steps to download iOS 16 updates




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Google to let users resume cancelled app downloads in Play Store

However, the pause option can be used only within that day




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One-pot synthesis of conjugated vinylene-extended viologen ionic radical polyacetylenes for visible light-promoted photocatalytic CO2 cycloaddition

Green Chem., 2024, 26,10876-10885
DOI: 10.1039/D4GC03683B, Paper
Yanan Chang, Shuo Wang, Juan Chen, Zixuan Xu, Qing Shi, Yunjie Mao, Yanli Gai, Zhouyang Long, Guojian Chen
In situ synthesis of a conjugated vinylene-extended viologen ionic radical polyacetylene (VIRP-2) for visible light-promoted photocatalytic CO2 cycloaddition under ambient conditions.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Electrochemistry-enabled Rh-catalyzed regioselective [4 + 1] and [4 + 2] cycloaddition of benzoic acid with alkynyl esters/amides

Green Chem., 2024, 26,10996-11002
DOI: 10.1039/D4GC03753G, Paper
Wei-Jung Chiu, Chung-Ming Sun
The reaction of benzoic acids with alkynyl esters/amides in the presence of a Rh-catalyst and AcOH as an additive to give phthalides by [4 + 1] annulation. In contrast, the additive NaOAc exclusively affords isocoumarins through the [4 + 2] pathway.
The content of this RSS Feed (c) The Royal Society of Chemistry




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REFUND JASON NOT UPLOADING

The uploaded JSON file which was created via offline utility has invalid data format.. IS THE ERROR I GET EVERYTIME ON UPLOADING EVEN WHEN IM USING MSOFFICE2010 AND HAVE VALIDATED THE DATA IN XL




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Original Content podcast: ‘Upload’ is a cheerful show about a nightmarish future

“Upload” feels like a slight, funny show — until you realize that without the jokes, the story would be unwatchably bleak. The Amazon Prime Video series (created by Greg Daniels of “The Office,” “Parks & Recreation” and the upcoming “Space Force”) takes place in a near future where people can upload digital copies of themselves […]




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Dean Laidley had been hiding away in an island paradise and offloading property

AFL great Dean Laidley provided several public insights into his despair in the lead-up to his shocking arrest. 




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Firmware for R&S®CLGD DOCSIS cable load generator




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Uber loses US$2.9b, offloads bike and scooter business

Uber lost US$2.9 billion in the first quarter as its overseas investments were hammered by the coronavirus pandemic, but the company is looking to its growing food delivery business and aggressive cost-cutting to ease the pain. The ride-hailing...




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Heartbreaking! Brand-new Royal Enfield falls off trailer while unloading: Shows why safety gear is paramount

A horrific video of a Royal Enfield falling from a trailer has surfaced on the web. Watch what exactly happened!




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Airtel tops the chart on download speed: Opensignal report

Airtel emerged on the top in terms of latency experience with an average response time of 54.1 milliseconds, followed by Jio at 56.3 ms.




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Will Hong Kong manage the Tourist overload?

The Hong Kong Tourism Commission has confessed that hundred million people will be visiting the city every year by 2023 which is almost twice the current amount.In January, Gregory So Kam-leung, the Secretary for Economic and Commerce Development, produced…




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PBBoard 2.0.5 Add Administrator / Shell Upload

PBBoard version 2.0.5 suffers from add administrator and shell upload vulnerabilities.




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FileExecutive File Disclosure / Path Disclosure / Shell Upload

FileExecutive suffers from file disclosure, path disclosure, shell upload, edit administrator and add administrator vulnerabilities.




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Weboptima CMS Add Administrator / Shell Upload

Weboptima CMS suffers from add administrator and remote shell upload vulnerabilities.




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Traidnt Upload 3 Add Administrator

Traidnt Upload 3 add administrator exploit that leverages cookie manipulation.




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SPIP CMS 2.x / 3.x Add Administrator / File Upload

SPIP CMS versions 2.x and 3.x suffer from unauthenticated add administrator and arbitrary file upload vulnerabilities.




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Anomalous-Payload-based-Worm-Detection-and-Signature-Generation.pdf

Anomalous Payloadbased Worm Detection and Signature Generation.




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Is Geothermal the Only Baseload Power Replacement that Makes Sense?

There are no plans for new coal plants to be built in the United States. This opens doors for the geothermal industry possibly more than ever before in U.S. history. In an Energy Information Administration (EIA) forecast to 2018, coal was one of the top-cost commissioning technology options; geothermal was one of the lowest.




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Venezuela's military says it seized three Colombian boats loaded with weapons, days after failed incursion

Venezuela says its military seized three abandoned Colombian light combat vessels that soldiers found while patrolling the Orinoco river, several days after the Government accused its neighbour of aiding a failed invasion.




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Only 50% of Britons would download NHS tracing app – poll

Teething problems threaten the effectiveness of government ‘test, track and trace’ strategy

Just over half the population is likely to download the NHS app developed to track and trace cases of coronavirus, new polling suggests, amid concerns that test result delays could hamper its effectiveness.

A narrow majority of 52% of people told an Opinium poll for the Observer that they were likely to download the app, which alerts users if they have been in close contact with someone who has tested positive for the virus.

Continue reading...




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Enjoy a Flirty Valentine's Day With Lots of Love and Loads of Gifts

It's again that time of the year when girls and boys are busy hunting for the best of flowers, candies and chocolates




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SLBS:Bhavcopy Download




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Liberal MP unloads on 'fear mongering Chairman Dan' Andrews for 'incredibly cruel' lockdown

Tim Smith, Liberal member for Kew in Melbourne's east, said the premier was 'fear mongering' despite Prime Minister Scott Morrison releasing a national roadmap to ease lockdown restrictions.




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Apple iOS 10 India update: Complete download guide




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Apple iOS 10 download: Update marred by glitches

Several user reports and news websites mentioned that after the installation process the handset showed an error prompting users to plug it to iTunes on a PC. On connecting, another error cropped up which read, “There is a problem with the iPhone 'iPhone' that requires it to be updated or restored.”




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Apple watchOS 3, tvOS 10: Top features and download guide

To download watchOS 3, users are recommended to install the latest iOS version and keep the Apple Watch’s minimum charge of up to 50%.




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Sci-fi comedy series 'Upload' gets the nod for season 2




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Using `setTimeout` to speed up `window.onload`

A few days ago, Martín Borthiry contacted me with a question. He had been using the optimized asynchronous Google Analytics snippet for a while, and noticed an additional speed gain when wrapping it inside a setTimeout() with a delay of 0 milliseconds. His tests made it pretty clear that this technique was indeed slightly faster, but Martín had no clue why.




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Loading JSON-formatted data with Ajax and `xhr.responseType='json'`

This post explains a hidden gem in the XMLHttpRequest standard that simplifies fetching and parsing JSON data through Ajax.




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Govt. college teachers to upload e-lessons

Teachers in government arts and science colleges will soon upload their lectures online and via social media platforms.Since April, batches of governm




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Microsecond time-resolved X-ray diffraction for the investigation of fatigue behavior during ultrasonic fatigue loading

A new method based on time-resolved X-ray diffraction is proposed in order to measure the elastic strain and stress during ultrasonic fatigue loading experiments. Pure Cu was chosen as an example material for the experiments using a 20 kHz ultrasonic fatigue machine mounted on the six-circle diffractometer available at the DiffAbs beamline on the SOLEIL synchrotron facility in France. A two-dimensional hybrid pixel X-ray detector (XPAD3.2) was triggered by the strain gage signal in a synchronous data acquisition scheme (pump–probe-like). The method enables studying loading cycles with a period of 50 µs, achieving a temporal resolution of 1 µs. This allows a precise reconstruction of the diffraction patterns during the loading cycles. From the diffraction patterns, the position of the peaks, their shifts and their respective broadening can be deduced. The diffraction peak shift allows the elastic lattice strain to be estimated with a resolution of ∼10−5. Stress is calculated by the self-consistent scale-transition model through which the elastic response of the material is estimated. The amplitudes of the cyclic stresses range from 40 to 120 MPa and vary linearly with respect to the displacement applied by the ultrasonic machine. Moreover, the experimental results highlight an increase of the diffraction peak broadening with the number of applied cycles.




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Locked and loaded: unique trigger design fires this ant’s snapping jaws

In conflicts between predators and prey, speed is a decided advantage, and evolution has given the trap-jaw ant a distinct advantage with spring-loaded jaws that […]

The post Locked and loaded: unique trigger design fires this ant’s snapping jaws appeared first on Smithsonian Insider.




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Use GPO to Import Safe Senders & Auto Download External Email Content




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How To Download Email To A Specific Folder With Outlook Express.