Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
December 2024
Objective: To observe the clinical efficacy of vitamin B1 in patients with ICU-acquired weakness (ICU-AW).
Methods: A retrospective analysis was conducted to select ICU-AW patients treated with vitamin B1 in the intensive care unit (ICU) of Shanghai East Hospital, Tongji University from July 2022 to December 2023. Propensity score matching was used to match the control group and observation group at a 1 : 1 ratio, considering differences in patient age, gender, and acute physiology and chronic health evaluation II (APACHE II).
Unmanned rollers are typically equipped with satellite-based positioning systems for positional monitoring. However, satellite-based positioning systems may result in unmanned rollers driving out of the specified compaction areas during asphalt road construction, which affects the compaction quality and has potential safety hazards. Additionally, satellite-based positioning systems may encounter signal interference and cannot locate unmanned rollers.
View Article and Find Full Text PDFBackground: At present, there is a lack of efficient biomarkers for the diagnosis of thyroid cancer, and the influence of natural factors such as high iodine exposure on the expression of biomarkers remains unclear.
Methods: Serum samples from papillary thyroid cancer (PTC) and non-cancer controls matched 1:1 in different iodine nutritional regions were analyzed metabolomically using an ultra-high performance liquid chromatography-Orbitrap Exploris mass spectrometry (UHPLC-OE-MS) platform. Then the data were randomly divided into training and test sets in a 1:1 ratio according to the different iodine nutritional regions and different PTC status.
Ion triplets of the chloride salts of two commonly used weakly coordinating cations are reported (i.e., Cl·NMeCl () and Cl·PPhCl ()).
View Article and Find Full Text PDFFrom an economic and environmental perspective, pyrolysis-catalysis is a promising method for converting waste plastics into high-value products. Low-cost catalysts are crucial for the large-scale processing of waste plastics. This study prepared a nickel-based catalyst supported on solid waste coal gangue (CG) using a simple impregnation method and investigated the effect of catalyst composition on the catalytic pyrolysis of polyethylene to produce hydrogen and high-value carbon nanotubes (CNTs).
View Article and Find Full Text PDFCoal gasification fine slag (CGFS) is a solid waste produced from gasification process, which consists of residual carbon with porous structure and minerals. The capture of CO by porous materials is an effective method for reducing CO emissions from industrial sources. In this work, the effective separation of residual carbon and ash from CGFS was achieved by froth flotation.
View Article and Find Full Text PDFThe direct photodetachment and two-photon photodissociation-photodetachment processes of a series of PtIn- (n = 2-5) anions were systematically studied using cryogenic anion photoelectron spectroscopy and first-principles electronic structure calculations. The adiabatic/vertical detachment energies (ADEs/VDEs) of these anions were determined from their 193 nm photoelectron (PE) spectra, i.e.
View Article and Find Full Text PDFNat Biotechnol
September 2024
The editing efficiencies of prime editing (PE) using ribonucleoprotein (RNP) and RNA delivery are not optimal due to the challenges in solid-phase synthesis of long PE guide RNA (pegRNA) (>125 nt). Here, we develop an efficient, rapid and cost-effective method for generating chemically modified pegRNA (125-145 nt) and engineered pegRNA (epegRNA) (170-190 nt). We use an optimized splint ligation approach and achieve approximately 90% production efficiency for these RNAs, referred to as L-pegRNA and L-epegRNA.
View Article and Find Full Text PDFAqueous Zn battery is promising for grid-level energy storage due to its high safety and low cost, but dendrite growth and side reactions at the Zn metal anode hinder its development. Designing Zn with (002) orientation improves the stability of the Zn anode, yet grain boundaries remain susceptible to corrosion and dendrite growth. Addressing these intergranular issues is crucial for enhancing the electrochemical performance of (002)-textured Zn.
View Article and Find Full Text PDFNoncovalent interactions (NCIs) are crucial for the formation and stability of host-guest complexes, which have wide-ranging implications across various fields, including biology, chemistry, materials science, pharmaceuticals, and environmental science. However, since NCIs are relatively weak and sensitive to bulk perturbation, direct and accurate measurement of their absolute strength has always been a significant challenge. This concept article aims to demonstrate the gas-phase electrospray ionization (ESI)-negative ion photoelectron spectroscopy (NIPES) as a direct and precise technique to measure the absolute interaction strength, probe nature of NCIs, and reveal the electronic structural information for host-guest complexes.
View Article and Find Full Text PDFBackground: Tacrolimus is widely used to treat pediatric nephrotic range proteinuria (NRP). Diltiazem, a CYP3A4/5 inhibitor, is often administered with tacrolimus, affecting its pharmacokinetic profile. The impact of this combination on tacrolimus exposure, particularly in CYP3A5*3 genetic polymorphism, remains unclear in pediatric NRP patients.
View Article and Find Full Text PDFObjective: Blood lipid levels play a critical role in the progression of atherosclerosis. However, even with adequate lipid reduction, significant residual cardiovascular risk remains. Therefore, it is necessary to seek novel therapeutic strategies for atherosclerosis that can not only lower lipid levels but also inhibit inflammation simultaneously.
View Article and Find Full Text PDFTo address the conflict between pressure relief and support effectiveness caused by large-diameter boreholes in roadway surrounding rock, this paper proposes a method involving variable-diameter boreholes for pressure relief and energy dissipation. With a typical rock burst coal mine as the engineering context, the study establishes a mechanical model for variable-diameter boreholes through theoretical analysis to examine the elastic stress distribution around boreholes within the coal body. Physical similarity simulation tests are conducted to investigate the influence of conventional borehole and variable diameter borehole on the transmission pattern of dynamic load stress waves.
View Article and Find Full Text PDFBackground: The main challenge against patients with cancer to derive benefits from immune checkpoint inhibitors targeting PD-1/PD-L1 appears to be the immunosuppressive tumor microenvironment (TME), in which IL-33/ST2 signal fulfills critical functions. However, whether IL-33 limits the therapeutic efficacy of anti-PD-L1 remains uncertain.
Methods: Molecular mechanisms of IL-33/ST2 signal on anti-PD-L1 treatment lewis lung carcinoma tumor model were assessed by RNA-seq, ELISA, WB and immunofluorescence (IF).
The oxidation of phenolic compounds is one of the most important reactions prevalent in various biological processes, often explicitly coupled with proton transfers (PTs). Quantitative descriptions and molecular-level understanding of these proton-coupled electron transfer (PCET) reactions have been challenging. This work reports a direct observation of PCET in photodetachment (PD) photoelectron spectroscopy (PES) of hydrogen-bonded phenolic (ArOH) nitrate (NO) complexes, in which a much slower rising edge provides a spectroscopic signature to evidence PCET.
View Article and Find Full Text PDFConducting a comprehensive molecular-level evaluation of a photoacid generator (PAG) and its subsequent impact on lithography performance can facilitate the rational design of a promising 193 nm photoresist tailored to specific requirements. In this study, we integrated spectroscopy and computational techniques to meticulously investigate the pivotal factors of three prototypical PAG anions, p-toluenesulfonate (pTS-), 2-(trifluoromethyl)benzene-1-sulfonate (TFMBS-), and triflate (TF-), in the lithography process. Our findings reveal a significant redshift in the absorption spectra caused by specific PAG anions, attributed to their involvement in electronic transition processes, thereby enhancing the transparency of the standard PAG cation, triphenylsulfonium (TPS+), particularly at ∼193 nm.
View Article and Find Full Text PDFMolding COFs into aerogels from monomers can establish interpenetrating spatial network structures on the centimeter scale that increase the accessibility of dominant pore channels and the convenience of real application, which radically gets rid of the difficult reprocessing problems of insoluble and non-fusible powder COFs. However, the construction of bulk COF structures and achieving crystallinity are often incompatible, especially with sp carbon-based COFs, whose powder synthesis has been quite demanding. Herein, for the first time, we report an efficient method to prepare sp carbon-linked π-conjugated DFB-TMTA-COF (DT-COF) aerogels by an ultrasound-assisted mild solvothermal technique and freeze-drying.
View Article and Find Full Text PDFIn percolation of patchy disks on lattices, each site is occupied by a disk, and neighboring disks are regarded as connected when their patches contact. Clusters of connected disks become larger as the patchy coverage of each disk χ increases. At the percolation threshold χ_{c}, an incipient cluster begins to span the whole lattice.
View Article and Find Full Text PDFAs an important vehicle in road construction, the unmanned roller is rapidly advancing in its autonomous compaction capabilities. To overcome the challenges of GNSS positioning failure during tunnel construction and diminished visual positioning accuracy under different illumination levels, we propose a feature-layer fusion positioning system based on a camera and LiDAR. This system integrates loop closure detection and LiDAR odometry into the visual odometry framework.
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