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Conjugated polyelectrolyte with potassium cations enables inverted perovskite solar cells with an efficiency over 20%

J. Mater. Chem. A, 2020, 8,8238-8243
DOI: 10.1039/D0TA01279C, Communication
Luozheng Zhang, Xianyong Zhou, Jiaming Xie, Shi Chen, Sanghoon Bae, Jeehwan Kim, Baomin Xu
A conjugated polyelectrolyte bearing stronger ability of defect-passivation and hole-extraction yields an efficiency of 20.01% as a hole transporting material.
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Screening metal-free photocatalysts from isomorphic covalent organic frameworks for the C-3 functionalization of indoles

J. Mater. Chem. A, 2020, 8,8706-8715
DOI: 10.1039/D0TA02164D, Paper
Ziping Li, Songjie Han, Chunzhi Li, Pengpeng Shao, Hong Xia, He Li, Xiong Chen, Xiao Feng, Xiaoming Liu
An excellent framework photocatalyst was screened from a series of isomorphic COFs. The photocatalytic properties of C-3 functionalization of indoles by COF-based photocatalysts were first reported.
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Rocking-chair capacitive deionization with flow-through electrodes

J. Mater. Chem. A, 2020, 8,8476-8484
DOI: 10.1039/C9TA14112J, Paper
Yong Liu, Xin Gao, Kai Wang, Xinyue Dou, Haiguang Zhu, Xun Yuan, Likun Pan
Flow-through Rocking-chair Capacitive Deionization system with ultrahigh desalination rate is built for the first-time, in which sodium-pre-intercalated MnO2 coated carbon nanofiber aerogels are employed as the flow-through electrode.
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A strategy to unlock the potential of CrN as a highly active oxygen reduction reaction catalyst

J. Mater. Chem. A, 2020, 8,8575-8585
DOI: 10.1039/C9TA14085A, Paper
Junming Luo, Xiaochang Qiao, Jutao Jin, Xinlong Tian, Hongbo Fan, Demei Yu, Wenlong Wang, Shijun Liao, Neng Yu, Yijie Deng
The potential of CrN as highly active ORR catalyst can be unlocked by enhancing its conductivity, enriching its d electrons and enlarging the exposure of active sites.
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Enhancing the operational stability of unencapsulated perovskite solar cells through Cu–Ag bilayer electrode incorporation

J. Mater. Chem. A, 2020, 8,8684-8691
DOI: 10.1039/D0TA01606C, Paper
Chieh-Ting Lin, Jonathan Ngiam, Bob Xu, Yu-Han Chang, Tian Du, Thomas J. Macdonald, James R. Durrant, Martyn A. McLachlan
Incorporation of bilayer electrodes (Cu:Ag) significantly reduces electrode corrosion and device degradation in perovskite solar cells operating in air. A symbiosis exists whereby Ag inhibits Cu oxidation and Cu prevents interfacial reactions between the perovskite (MAPbI3) and Ag.
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Anderson polyoxometalate built-in covalent organic frameworks for enhancing catalytic performances

J. Mater. Chem. A, 2020, 8,8548-8553
DOI: 10.1039/D0TA02443K, Paper
Rui Ma, Naifang Liu, Ting-Ting Lin, Tianbo Zhao, Sheng-Li Huang, Guo-Yu Yang
Anderson polyoxometalate-based covalent organic frameworks exhibited the highest catalytic activity in the photodegradation of RhB and MB, as well as 100% selective oxidation of sulfides to sulfoxides.
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A series of highly stable porphyrinic metal–organic frameworks based on iron–oxo chain clusters: design, synthesis and biomimetic catalysis

J. Mater. Chem. A, 2020, 8,8376-8382
DOI: 10.1039/D0TA02033H, Paper
Gang Liu, Hao Cui, Sujuan Wang, Li Zhang, Cheng-Yong Su
A facile synthesis of a series of Fe–oxo chain-based porphyrinic MOFs (namely M-PMOF-3(Fe), M = Fe, Co, Ni, Cu) has been reported.
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Evidence of phase coexistence in hydrothermally synthesized K0.5Na0.5NbO3 nanofibers

J. Mater. Chem. A, 2020, 8,8731-8739
DOI: 10.1039/C9TA14153G, Paper
Mohammad B. Ghasemian, Aditya Rawal, Zahra Shahrbabaki, Qi Zhang, Teng Lu, Yun Liu, Danyang Wang
The 2D 23Na 3QMAS NMR analyses provide new insights into the crystalline structure of K0.5Na0.5NbO3 nanostructures on the microscopic scale, which are critical to understand the functional properties of these nano-materials.
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Understanding the mechanism of byproduct formation with in operando synchrotron techniques and its effects on the electrochemical performance of VO2(B) nanoflakes in aqueous rechargeable zinc batteries

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA00858C, Paper
Qiang Pang, Hainan Zhao, Ruqian Lian, Qiang Fu, Yingjin Wei, Angelina Sarapulova, Junqi Sun, Chunzhong Wang, Gang Chen, Helmut Ehrenberg
The byproduct protects the vanadium-based positive electrode of ARZBs and facilitates Zn2+ insertion into the electrode.
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A universal cross-linking binding polymer composite for ultrahigh-loading Li-ion battery electrodes

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA00714E, Paper
Dong Wang, Qian Zhang, Jie Liu, Erying Zhao, Zhenwei Li, Yu Yang, Ziyang Guo, Lei Wang, Shanqing Zhang
A general, facile-operability, and sustainable strategy to achieve ultrahigh-loading electrodes has been proposed that is simply replacing the traditional PVDF binder with an eco-friendly and robust c-PAA-XG binder with a high-efficiency damper.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Quasi-quantum dot-induced stabilization of α-CsPbI3 perovskite for high-efficiency solar cells

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA02807J, Paper
Cheng Liu, Yi Yang, Xin Liu, Yong Ding, Zulqarnain Arain, Xinye Li, Yuanlong Li, Zian Zhou, Songyuan Dai, Mohammad Khaja Nazeeruddin
Quasi-quantum dots α-CsPbI3 films are in situ prepared by using a new ligand with ultralow contents. By increasing the film hydrophobicity and surface Gibbs energy, the device with efficiency of 13.5% keeps stable under ambient condition for 30 days.
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Moisture-tolerant and high-quality α-CsPbI3 films for efficient and stable perovskite solar modules

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA01968B, Paper
Ruihao Chen, Yong Hui, Binghui Wu, Yongke Wang, Xiaofeng Huang, Zhongyuan Xu, Pengpeng Ruan, Wuyong Zhang, Fangwen Cheng, Weijie Zhang, Jun Yin, Jing Li, Nanfeng Zheng
Crown ether effectively stabilizes the cubic phase of CsPbI3 to inhibit the moisture invasion and phase transformation of CsPbI3 films, producing large-area devices and improving device performance.
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Two-dimensional covalent–organic frameworks for ultrahigh iodine capture

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/C9TA13980J, Communication
Jinheng Li, Huixin Zhang, Lingyan Zhang, Ke Wang, Zhengkang Wang, Guiyan Liu, Yanli Zhao, Yongfei Zeng
Two new two-dimensional covalent–organic frameworks are synthesized using a three-connected building block, showing ultrahigh iodine capture capacities of 5.625 g g−1 and 4.820 g g−1 on account of physical–chemical adsorption.
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Hollow PtCu Nanoparticles Encapsulated into Carbon Shell via Mild Annealing of Metal-Organic Frameworks

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA01549K, Paper
Guanjun Chen, Huaqiang Shan, Yan Li, Hongwei Bao, Tingwei Hu, Long Zhang, Shuai Liu, Fei Ma
Alloying Pt with less expensive 3d transition metal to form bimetallic nanoparticles (NPs) has been proven to be an ideal strategy for synthesis of catalysts, especially in the field of...
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Optical in-situ monitoring during the synthesis of halide perovskite solar cells reveals formation kinetics and evolution of optoelectronic properties

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA01237H, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Klara Suchan, Justus Just, Pascal Becker, Eva Lisa Unger, Thomas Unold
The formation mechanism and the evolution of optoelectronic properties during annealing of chlorine-derived methylammonium lead iodide (MAPbI3-xClx) is investigated in detail combining in-situ und ex-situ optical and structural characterization. Using...
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High-Humidity Processed Perovskite Solar Cells

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA01178A, Review Article
Mohamad Firdaus Mohamad Noh, Nurul Affiqah Arzaee, Inzamam Nawas Nawas Mumthas, Nurul Aida Mohamed, Siti Nur Farhana Mohd Nasir, Javad Safaei, Abd. Rashid bin Mohd Yusoff, Mohammad Khaja Nazeeruddin, Mohd Asri Mat Teridi
Perovskite solar cells (PSCs) are considered the next-in-line technology in the solar industry. This technology can reduce the costs of solar energy to an unprecedented level given their remarkably high...
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Synchronous surface and bulk composition management for red-shifted light absorption and suppressed interfacial recombination in perovskite solar cells

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA02449J, Paper
Jun-Xing Zhong, Jin-Feng Liao, Yong Jiang, Lianzhou Wang, Dai-Bin Kuang, Wu-Qiang Wu
Perovskite solar cells with a reverse vertical gradient distribution of α/δ-FAPbI3 achieved a record efficiency of up to 21.9% owing to synergistic advantages of expanded photon harvesting and robust surface defect passivation.
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Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA02388D, Paper
Junhui Tang, Ruisi Chen, Lidong Chen, Guillermo C. Bazan, Ziqi Liang
n-Type Co NWs/N2200 TENCs yield a high S, mainly from the semiconducting polymer, yet σ is limited by poor connectivity between inorganic and organic domains. By adding flexible n-doped SWCNTs to yield more conductive paths, σ and mechanical bendability are greatly enhanced.
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Graphene oxide laminates intercalated with 2D covalent-organic frameworks as a robust nanofiltration membrane

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA01727B, Paper
Xiao Sui, Ziwen Yuan, Chang Liu, Li Wei, Meiying Xu, Fei Liu, Alejandro Montoya, Kunli Goh, Yuan Chen
Porous yet rigid 2D covalent–organic framework nanosheets can not only increase the interlayer spacing between graphene oxide nanosheets and provide direct transfer channels but also enhance the self-supporting capacity of graphene oxide laminates.
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The nature of the methylamine–MAPbI3 complex: fundamentals of gas-induced perovskite liquefaction and crystallization

J. Mater. Chem. A, 2020, Advance Article
DOI: 10.1039/D0TA02494E, Paper
Dmitry Bogachuk, Lukas Wagner, Simone Mastroianni, Michael Daub, Harald Hillebrecht, Andreas Hinsch
In this work we scrutinize the exact interaction mechanisms between methylamine and perovskite based on extensive experimental evidence.
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Perovskite-Sensitized β-Ga2O3 Nanorod Arrays for Highly Selective and Sensitive NO2 Detection at High Temperature

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA02691C, Paper
Bo Zhang, Hui-Jan Lin, Haiyong Gao, Xingxu Lu, Chang-Yong Nam, Pu-Xian Gao
Amongst various gaseous pollutants, NO2 is one of the major exhausts originating from fossil fuel and gas combustions in vehicle engines and power plants at high temperature. Under such scenario,...
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Smart Porous Wood Supported Flower-like NiS/Ni Conjuction with Vitrimer Co-effect as Multifunctional Material with Reshaping, Shape-memory and Self-healing for High-Performance Supercapacitors, Catalysts and Sensors

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA03664A, Paper
Chuanyin Xiong, Bingbing Li, Heguang Liu, Wei Zhao, Chao Duan, Haiwei Wu, Yong Ni
Wood-based materials are attracting more and more attention for applications in energy storage, due to their environment friendly and numerous channels structure. However, the poor conductivity and flexibility of wood...
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Plasmon-Enhanced Electrocatalytic Oxygen Reduction in Alkaline Media on Gold Nanohole Electrodes

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/C9TA14174J, Paper
Nait Saada Tamazouzt, Anderson da Silva, Palaniappan Subramanian, Liuqing Pang, Noual Adnane, Bahram Djafari-Rouhani, Vladyslav Mishyn, Dalila Meziane, Sorin Melinte, Georgiana Sandu, Franck Dumeignil, Sebastien Paul, Robert Wojcieszak, Rabah Boukherroub, Sabine Szunerits
Plasmon-driven chemical transformation has become a promising approach for enhancing sluggish electrocatalytic reactions. Herein, an alternative enhancement strategy employing plasmon-induced hot electrons is developed to be competitive with oxygen reduction...
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Dihydrazone-based Dynamic Covalent Epoxy Networks with High Creep Resistance, Controlled Degradability, and Intrinsic Antibacteria from Bioresources

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA01419B, Paper
Xiwei Xu, Songqi Ma, Sheng Wang, Jiahui Wu, Qiong Li, na lu, yanlin liu, Jintao Yang, Jie Feng, Jin Zhu
Covalent adaptable networks (CANs) provide a promising approach to the recycle issue of thermosets due to their dynamic cross-linked networks. However, CANs are susceptible to creep at relatively low temperatures,...
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The man who was known as 'Snakehips'

By the time he appeared in the film, Snakehips Tucker was already a name attraction in Harlem nightclubs like the Cotton Club and Connie's Inn




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Samsung Galaxy S20 Plus review: Wholesome package justifies premium pricing

Several major upgrades to predecessor Galaxy S10 Plus but the same price tag of Rs 73,999 make the Galaxy 20 Plus a worthy premium smartphone




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WATCH LIVE - Opening Celebration of “Rosa Parks: In Her Own Words”

Starting at 7 p.m EST., tonight Dec. 4, 2019. 

A new Library of Congress exhibition,“Rosa Parks: In Her Own Words,” opens December 5. Celebrate Rosa Parks with us at this opening event. Hear from Librarian of Congress Carla Hayden, the Honorable John Lewis & others.

WELCOME: Carla Hayden, Librarian of Congress

REMARKS: The Honorable John Lewis, Representative from Georgia

DISCUSSION: Fred Gray and Jane Gunter, Moderated by Michelle Miller, CBS News The exhibition will immerse visitors in Parks’ words, reflections, handwritten notes and photographs, allowing her to tell her own life story. It is the first exhibition of Rosa Parks’ personal collection.

The exhibition offers an intimate view of this seminal figure’s life – beyond her famous refusal to give up her seat to a white man on a city bus – to reveal the real Rosa Parks, a seasoned activist with a spirit forged over decades of challenging inequality and injustice. Learn more about the exhibition https://www.loc.gov/exhibitions/rosa-parks-in-her-own-words/about-this-exhibition/ 

Click here to watch. 




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National Book Festival Presents Winter and Spring Events

National Book Festival Presents, the new series from the Library of Congress showcasing authors, their books, and related Library treasures, will continue with a winter and spring season of events featuring Alice McDermott, Douglas Brinkley, Margaret Atwood, Nan Talese, Richard Ford, Joy Harjo and other authors.

The season will kick off with “Fearless: A Tribute to Irish American Women” on Feb. 6, featuring novelist Alice McDermott in conversation with Pennsylvania Rep. Mary Gay Scanlon and CBS News’ Margaret Brennan.

Click here for more information.

Request ADA accommodations five business days in advance at (202) 707-6362 or ADA@loc.gov.




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NEWS: Cherry Blossom Book Features Library Collections

Vibrant springtime traditions of cherry blossom viewing in Japan and Washington, D.C., are explored in the new book “Cherry Blossoms: Sakura Collections from the Library of Congress,” published today by Smithsonian Books, in association with the Library of Congress. Events at the Library in April will feature the book and celebrate the annual return of the cherry blossoms to the nation's capital.

Click here for more information.




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REMINDER: In Conversation with Librarian of Congress: Garth Brooks & Trisha Yearwood

 

 

Country Music Icon Trisha Yearwood and Gershwin Prize Recipient Garth Brooks “In Conversation with Librarian of Congress,” March 2

Librarian of Congress Carla Hayden will host a conversation with Grammy Award-winning country music singer and songwriter Garth Brooks and country music artist, actress, author, celebrity chef and wife of Brooks, Trisha Yearwood on Monday, March 2 at 7:00 p.m. in the Library of Congress Coolidge Auditorium in the Thomas Jefferson Building, 10 First Street S.E., Washington, D.C.

Brooks will receive the Library of Congress Gershwin Prize for Popular Song later that week on Wednesday, March 4. The country music titan and multiple hall of famer is the youngest recipient of the prestigious prize. You can follow and join in on the #GershwinPrize conversation via Twitter.

During the conversation, Brooks and Yearwood will discuss their success as a country music power couple, their careers as music industry changemakers and the humanitarian projects they devote their efforts to each year. The conversation is being presented as part of the Library’s initiative to Explore America’s Changemakers.

Click here for more information.

Request ADA accommodations five business days in advance at (202) 707-6362 or ADA@loc.gov.




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Upcoming Events: Kluge Center Spring Events

The John W. Kluge Center at the Library of Congress is pleased to announce a packed schedule of public events happening this spring.

Click here for more information.

Request ADA accommodations five business days in advance at (202) 707-6362 or ADA@loc.gov.




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Upcoming Events: Earth and Space Science Talks

This month, the Library of Congress will kick off the annual Earth and Space Science lecture series. The series is presented in partnership with the NASA Goddard Space Flight Center and the Science, Technology and Business Division at the Library.

Click here for more information.

Request ADA accommodations five business days in advance at (202) 707-6362 or ADA@loc.gov.




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Advanced CSS Tricks and Techniques

As time goes by, CSS is becoming more and more powerful and nowadays it offers lots of possibilities to create visually stunning websites. This article is a compilation of fresh, advanced CSS tips and techniques to master your web design and front-end web development skills. Each technique features sample code snippet, demo, and explanations. Warning: …

Advanced CSS Tricks and Techniques Read More »




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Best WooCommerce Code Snippets: Add to Cart Link & More

Since over 5 years, WooCommerce is recognized as the most powerful and easy to use e-commerce plugin for WordPress. In this article, I have compiled my all time favorite hacks and code snippets to extend WooCommerce possibilities.




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Best CSS Frameworks for Building Better Websites

When building a website, using a CSS framework is a real time saver as it provides you with tools every web designer and front-end developer needs when crafting a site (other than good web hosting). A CSS framework is a software framework created to allow for easier, more standards-compliant web design using HTML/CSS. Many popular …

Best CSS Frameworks for Building Better Websites Read More »




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Janaushadhi Kendras accepting orders on WhatsApp, e-mail to facilitate access to medicines: Government

"It is heartening to note that many PMBJKs are using modern communication tools including social media platforms like Whatsapp to provide better services in effecting faster delivery of essential medicines to the needy," Minister of Chemicals and Fertilizers DV Sadananda Gowda said.




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Gilead scouting for partners in India, Pakistan for remdesivir

Recent clinical trial results and the decision by the US Food and Drug Administration to issue 'Emergency Use Authorisation' for remdesivir have highlighted the urgency of this work and the importance of planning for access to remdesivir globally, Gilead said.




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Assam keen to woo MNCs looking to move out of China

Multinational companies looking to move out of China should consider Assam, with its abundant natural resources, strategic location and robust industrial infrastructure, as their destination for setting up production facilities in India, state Industries Minister Chandra Mohan Patowary said on Wednesday.




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Gilead under gun to mass-produce virus drug or risk exclusivity

All of that could add up to market wins if remdesivir lives up to expectations and Gilead can ramp up to sufficiently respond to Covid-driven demand. But if it can’t, Gilead could be “very vulnerable” to the federal government using its powers to compel the licensure of remdesivir patents, Roth said.




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Dr Reddy's gets USFDA inspection closure report for Srikakulam plant

The US Food and Drug Administration (USFDA) had issued a warning letter to the facility in November, 2015, after inspecting it in 2014.




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Chinese drugmaker in talks to test virus vaccine globally

With China having largely curbed its growth of new infections, its drugmakers will need to seek international cooperation to test their vaccine candidates in other countries — a task that may be complicated by tensions between China and some nations, especially the US, over how and where the virus originated.




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Late works / Elliott Carter

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Breaking ground: a celebration of women composers / Natalie Mannix, Stephanie Bruning

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All that the man left behind when he died / Daichi Fujiki

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The book of keyboards / Philippe Manoury

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Ergo: new music for piano & Chinese folk instruments / Zhen Chen

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Dark holler / David Kirkland Garner

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Anasa: True colors ; Unforgettable / George Tsontakis

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The Andrée expedition: From the diary of Virginia Woolf / Dominick Argento

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'From noon to starry night' / Baker

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