Publications by authors named "Guobao Li"

High-grade non-oriented silicon steel with high magnetic induction and low iron loss produced with low carbon emissions is crucial for the development of new energy and energy-saving motors. In this paper, the trace mixed rare earth (RE) elements exhibit a great potential to enhance magnetic properties in a lower carbon emission process by multiple effects on microstructure, texture, and inclusion in non-oriented silicon steel. With the trace-doped RE elements (0.

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and are opportunistic pathogens that cause severe infections in hospitals, and their co-infections are increasingly reported. The interspecies interactions between these two bacterial species and their potential impacts on infections are largely unexplored. In this study, we first demonstrated that inhibits the growth of by iron chelating via quorum sensing.

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The Li/Mn ordered structure of lithium-rich (LR) cathodes leads to the heterogeneous LiMnO and LiTMO components, readily triggering structural degeneration and performance degradation in long-term cycling. However, the lack of guiding principles for promoting cation disorder within the transition metal (TM) layers has posed a persistent challenge in designing homogeneous layered LR cathodes. Herein, the (Li + Mn) content in the TM layer as a criterion for the design of cation-disordered layered LR cathodes is proposed.

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The crystallization of organic polymers is often hindered by chiral units, hence resulting in chiral organic polymers typically existing as amorphous or partially crystalline phases such as natural rubber and cellulose. Similarly, as an emerging crystalline chiral polymer, chiral covalent organic frameworks (COFs) also inevitably face a delicate balance between chiral units and crystallization, limiting their production and applications in separation, catalysis, and optics. Here, we present a general strategy for producing a series of conformational chiral COFs with high crystallinity through breaking the meso conformation of achiral COFs.

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Article Synopsis
  • Sodium and potassium were introduced into LaSrCuO to create LaSrKNaCuO solid solutions through a solid-state reaction, resulting in distinct crystallization patterns for different compositions.
  • The substitution of four Sr ions by one Na, one K, and two La ions leads to a varying property, specifically the transition temperature (T), which changes with the composition of the solution.
  • As the Na content increases, the transition temperature initially rises from 14.8 K at low Na concentration (x = 0.00) to 33.9 K at x = 0.10, before dropping to 18.5 K at x = 0.175.
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Tuberculosis (TB) caused by Mycobacterium tuberculosis (Mtb), results in significant morbidity and mortality worldwide. Host-directed therapy (HDT), including conventional drugs, is a promising anti-TB strategy that shows synergistic antibacterial effects when combined with anti-TB drugs. Here, the mycobactericidal effect of three anti-diabetic drugs was examined.

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Article Synopsis
  • Tuberculous meningitis (TBM) is a serious CNS infection that is difficult to diagnose due to inadequate detection methods, leading this study to evaluate current clinical practices.
  • A cohort of 514 patients from 2018 to 2020 was analyzed, revealing TBM and neurosyphilis as the most common CNS infections, with a significant percentage showing signs of CNS inflammation in their Cerebrospinal Fluid (CSF) analysis.
  • The study found that metagenomic next-generation sequencing (mNGS) had high sensitivity for detecting TBM, while combining GeneXpert and microbial cultures provided a useful and cost-effective alternative for diagnosis.
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Pseudomonas aeruginosa is a widespread nosocomial pathogen with a significant to cause both severe planktonic acute and biofilm-related chronic infections. Small RNAs (sRNAs) are noncoding regulatory molecules that are stabilized by the RNA chaperone Hfq to trigger various virulence-related signaling pathways. Here, we identified an Hfq-binding sRNA in P.

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The bacterial membrane vesicles (MVs) are non-replicative, nanoscale structures that carry specific cargos and play multiple roles in microbe-host interactions. An appropriate MV isolation method that mimics complex pathogen infections in vivo is needed. After bacterial MVs extraction, flagella or pili can be frequently observed along with MVs by transmission electron microscope (TEM).

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Tuberculosis (TB) remains one of the deadliest chronic infectious diseases globally. Early diagnosis not only prevents the spread of TB but also ensures effective treatment. However, the absence of non-sputum-based diagnostic tests often leads to delayed TB diagnoses.

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Article Synopsis
  • - The Spike protein of SARS-CoV-2 has a multibasic cleavage site that allows Furin to cleave it, leading to enhanced cell fusion (syncytia), which can worsen the virus's effects by aiding in its spread and evasion of the immune system.
  • - Research reveals that the SARS-CoV-2 M protein inhibits syncytia formation caused by the Spike protein and its variants by preventing its cleavage and interactions with Furin.
  • - M protein also binds to Spike to keep it in the cytoplasm rather than the cell membrane, indicating a complex interaction among viral proteins that could inspire new treatment strategies against SARS-CoV-2.
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Benzylic amine derivatives are ubiquitous structural motifs in organic chemistry. Herein we report a direct synthesis of these compounds a direct desulfonylative -arylation of -tosyl hydroxamates. The applicability of this Ru-catalyzed aminoalkylation is being exemplified by a set of late-stage functionalizations of natural products.

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Drug-resistant tuberculosis (TB) poses a major threat to global TB control; consequently, there is an urgent need to develop novel anti-TB drugs or strategies. Host-directed therapy (HDT) is emerging as an effective treatment strategy, especially for drug-resistant TB. This study evaluated the effects of berbamine (BBM), a bisbenzylisoquinoline alkaloid, on mycobacterial growth in macrophages.

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Background: This study aimed to develop a comprehensive instrument for evaluating and ranking clinical practice guidelines, named Scientific, Transparent and Applicable Rankings tool (STAR), and test its reliability, validity, and usability.

Methods: This study set up a multidisciplinary working group including guideline methodologists, statisticians, journal editors, clinicians, and other experts. Scoping review, Delphi methods, and hierarchical analysis were used to develop the STAR tool.

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Background: At the 74th World Health Assembly, the WHO issued a strategy for the prevention and control of several major infectious diseases. To achieve the WHO-initiated targets for these infectious diseases, the elimination of mother-to-child transmission is essential. To date, a systematic review of the global and regional prevalence of infections with relevant mother-to-child transmission and outside the spectrum of congenital infections is lacking.

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We describe the synthesis, crystal structure and semiconducting properties of a number of hexacyanidometallates with the formula A[MFe(CN)]·HO (A = Na, K; M = Mg, Ca, Sr and Ba). All crystal structures were studied single-crystal or powder X-ray diffraction. The unexpectedly low-symmetric structures in these ferrocyanides are described and contrasted with analogous transition-metal compounds which have been reported to be strictly or nearly cubic.

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Background: Tuberculosis (TB) caused by Mycobacterium tuberculosis (M. tb) remains a global health issue. The characterized virulent M.

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The long-term effect of coronavirus disease 2019 (COVID-19) has been rarely known. This study aimed to investigate healthy outcomes of COVID-19 survivors up to 2 years after the infection. A total of 155 COVID-19 patients, who were discharged from Shenzhen Third People's Hospital from February 2020 to April 2020, were enrolled and followed up until March 4, 2022.

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The aryl hydrocarbon receptor (AhR) protein senses microbial-secreted metabolites to trigger the host's innate immune system. The quinolone signal (PQS) and (MTb) metabolite phthiocol (Pht) are both ligands of AhR with similar chemical structures. As PQS is an essential quorum-sensing molecule that regulates a wide range of virulence factors in , we hypothesized that Pht and its analogs are potential quorum-sensing inhibitors (QSIs) with immune-modulating functions.

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Mycobacterium tuberculosis (Mtb), the pathogenic agent of tuberculosis, remains a primary inducement of morbidity and mortality globally. Mtb have evolved mechanisms to recognize diverse signals, such as acidic pH within phagolysosomes and therefore to reprogram multiple physiological and metabolic processes to adapt to intracellular survival. Moreover, lysine malonylation has been suggested to participate in regulation of enzymes in carbon metabolism.

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Unlabelled: Children are the future of the world, but their health and future are facing great uncertainty because of the coronavirus disease 2019 (COVID-19) pandemic. In order to improve the management of children with COVID-19, an international, multidisciplinary panel of experts developed a rapid advice guideline at the beginning of the outbreak of COVID-19 in 2020. After publishing the first version of the rapid advice guideline, the panel has updated the guideline by including additional stakeholders in the panel and a comprehensive search of the latest evidence.

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Objective: Patients with tuberculosis have a high nutritional risk, and patients with tuberculosis and structural lung disease have a poor quality of life. However, few studies have investigated the nutritional risk of patients with tuberculosis and structural lung disease. This study aimed to evaluate nutritional risk in patients with pulmonary tuberculosis and structural lung disease and to identify factors associated with nutritional risk in this population.

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Transparency Ecosystem for Research and Journals in Medicine (TERM) working group summarized the essential recommendations that should be considered to review and publish a high-quality guideline. These recommendations from editors and reviewers included 10 components of essential requirements: systematic review of existing relevant guidelines, guideline registration, guideline protocol, stakeholders, conflicts of interest, clinical questions, systematic reviews, recommendation consensus, guideline reporting and external review. TERM working group abbreviates them as PAGE (essential requirements for Publishing clinical prActice GuidelinEs), and recommends guideline authors, editors, and peer reviewers to use them for high-quality guidelines.

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