Robust Fluorine-Functionalized {Ln}-Organic Frameworks for Excellent Catalytic Performance on Cycloaddition of CO with Epoxides and Knoevenagel Condensation.

Lanthanide-organic frameworks (LnOFs) are a class of promising catalysts on a large number of organic reactions because of the higher coordination number of Ln ions, inspired by which exploratory preparation of cluster-based LnOFs was carried out by us. Herein, the exquisite combination of spindly [Ln(μ-OH)(CO)(HO)] clusters (abbreviated as {Ln}) and fluorine-functionalized tetratopic ligand of 2',3'-difluoro-[-terphenyl]-3,3″,5,5″-tetracarboxylic acid (F-HPTTA) engendered two highly robust isomorphic nanoporous frameworks of {[Ln(FPTTA)(μ-OH)(HO)](NO)} (, = and ). compounds are rarely reported {Ln}-based 3D frameworks with nano-caged voids (19 Å × 17 Å), which are shaped by twelve [Ln(μ-OH)(COO)] clusters and eight completely deprotonated F-PTTA ligands.

Effects of Various Processing Methods on the Nutritional Quality and Carcinogenic Substances of Bactrian Camel () Meat.

Bactrian camel () meat, as a product of national geographical indication, is mainly produced in the northwest regions of China. This study systematically evaluated the edible quality, nutritional quality, and carcinogenic substances of Bactrian camel meat using different heating times in four thermal processing methods (steaming, boiling, frying, and microwaving). Compared with the control group (uncooked), the thermal processing of meat demonstrated lower redness and moisture content; higher shear force values and protein, fat, and ash contents; and sharply increased the levels of amino acids and fatty acids.

Metal-Ion-Doped Manganese Halide Hybrids with Tunable Emission for Advanced Anti-Counterfeiting.

Stimuli-responsive luminescent materials have received great attention for their potential application in anti-counterfeiting and information encryption. Manganese halide hybrids have been considered an efficient stimuli-responsive luminescent material due to their low price and adjustable photoluminescence (PL). However, the photoluminescence quantum yield (PLQY) of PEAMnBr is relatively low.

Spatial and temporal characteristics analysis and prediction model of PM2.5 concentration based on SpatioTemporal-Informer model.

The primary cause of hazy weather is PM2.5, and forecasting PM2.5 concentrations can aid in managing and preventing hazy weather.

Automatic identification and analysis of multi-object cattle rumination based on computer vision.

Rumination in cattle is closely related to their health, which makes the automatic monitoring of rumination an important part of smart pasture operations. However, manual monitoring of cattle rumination is laborious and wearable sensors are often harmful to animals. Thus, we propose a computer vision-based method to automatically identify multi-object cattle rumination, and to calculate the rumination time and number of chews for each cow.

Comparative Analysis Using Raman Spectroscopy of the Cellular Constituents of Zhang in a Normal and Viable but Nonculturable State.

This study aimed to investigate the molecular composition of a viable but nonculturable (VBNC) state of a probiotic strain, Zhang ( Zhang), using single-cell Raman spectroscopy (SCRS). Fluorescent microcopy with live/dead cell staining (propidium iodide and SYTO 9), plate counting, and scanning electron microscopy were used in combination to observe bacteria in an induced VBNC state. We induced the VBNC state by incubating the cells in de Man, Rogosa, and Sharpe broth (MRS) at 4 °C.

Research on Rolling Bearing Fault Diagnosis Based on Digital Twin Data and Improved ConvNext.

This article introduces a novel framework for diagnosing faults in rolling bearings. The framework combines digital twin data, transfer learning theory, and an enhanced ConvNext deep learning network model. Its purpose is to address the challenges posed by the limited actual fault data density and inadequate result accuracy in existing research on the detection of rolling bearing faults in rotating mechanical equipment.

Safety and efficacy of microwave ablation for the treatment of low-risk papillary thyroid microcarcinoma: a prospective multicenter study.

Objectives: To assess the safety and efficacy of ultrasound-guided thermal ablation for low-risk papillary thyroid microcarcinoma (PTMC) via a prospective multicenter study.

Methods: From January 2017 through June 2021, low-risk PTMC patients were screened. The management details of active surveillance (AS), surgery, and thermal ablation were discussed.

Bonding character, electronic properties, and electronic transitions of perfluorocubane as a small electron acceptor.

Perfluorocubane is a fluorinated analogue of a polyhedral hydrocarbon observed recently in experiment (M. Sugiyama, M. Akiyama, Y.

Study on the preparation and mechanical properties of purple ceramics.

This paper aims at preparing a smart wearable purple ceramic that meet the color requirements of purple smart wear in the market after using zirconate neodymium as a chromogenic agent. However, the mechanical performance of zirconate neodymium purple ceramic is not satisfactory, especially it has an extremely low fracture toughness. To solve this, a 3 mol% yttria-stabilized zirconia (3YSZ) is added to zirconate neodymium in the preparation of multiphase ceramics to improve its mechanical properties.

Computational identification of promoters in by using support vector machine.

Promoters are the basic functional cis-elements to which RNA polymerase binds to initiate the process of gene transcription. Comprehensive understanding gene expression and regulation depends on the precise identification of promoters, as they are the most important component of gene expression. This study aimed to develop a machine learning-based model to predict promoters in ().

Cu-doped NdSrCoCuO ( = 0, 0.05, 0.1, 0.15, 0.2) as the cathode for intermediate-temperature solid oxide fuel cells.

NdSrCoCuO ( = 0, 0.05, 0.1, 0.

Dynamics of dissipative Landau-Zener transitions in an anisotropic three-level system.

We investigate the dynamics of Landau-Zener (LZ) transitions in an anisotropic, dissipative three-level LZ model (3-LZM) using the numerically accurate multiple Davydov D2Ansatz in the framework of the time-dependent variational principle. It is demonstrated that a non-monotonic relationship exists between the Landau-Zener transition probability and the phonon coupling strength when the 3-LZM is driven by a linear external field. Under the influence of a periodic driving field, phonon coupling may induce peaks in contour plots of the transition probability when the magnitude of the system anisotropy matches the phonon frequency.

Construction of Inorganic-Rich Cathode Electrolyte Interphase on Co-Free Cathodes.

Lithium-rich layered oxides (LRLOs), with the chemical formula of LiMnO·(1 - )LiMO, delivering higher specific discharge capacity, are potential cathode materials for lithium-ion batteries. However, the dissolution of transition metal ions and the instability of the cathode-electrolyte interphase (CEI) hinder the commercial application of LRLOs. Herein, a simple and affordable method is developed for the construction of a robust CEI layer by quenching a kind of cobalt-free LRLO, LiNiFeMnO (denoted as NFM), in 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether solvent.

MiR-210 improves postmenopausal osteoporosis in ovariectomized rats through activating VEGF/Notch signaling pathway.

Background: To explore the effect and mechanism of action of miR-210 on postmenopausal osteoporosis (PMPO) in ovariectomized rats in vivo.

Methods: An ovariectomized (OVX) rat model was established by ovariectomy. Tail vein injection was performed to overexpress and knock down miR-210 in OVX rats, followed by the collection of blood and femoral tissues from each group of rats.

A case of infection-induced thrombotic thrombocytopenic purpura.

Background: Thrombotic thrombocytopenic purpura (TTP) are a group of microvascular thrombohemorrhagic syndromes with low incidence and high mortality, which are characterized by thrombocytopenia, microangiopathic hemolytic anemia, fever, neuropsychiatric disorders, and renal involvement. In addition, TTP has a high rate of misdiagnosis and underdiagnosis due to the lack of specific clinical manifestations.

Case Report: A male patient aged 47 years was admitted to our hospital with complaints of dizziness and nausea for 2 days and soy-colored urine for 1 day.

Crack Damage Propagation and Morphology Distribution of Hydraulic Electric Pulse Fractured Coal.

This work discusses the damage and failure effect of a hydraulic electric pulse and the law of crack growth on coal. The impact and failure effect of a water shock wave and the mechanism of crack initiation, propagation, and arrest were studied by numerical simulation and the fracturing test of coal, combined with CT scanning, PCAS software, and Mimics 3D reconstruction technology. The results show that a high voltage electric pulse that increases permeability is an effective artificial crack making technology.

Enhancement of the Josephson Current in a Quantum Dot Connected to Majorana Nanowires.

We investigate the behavior of the Josephson current in a system composed of a quantum dot (QD) sandwiched between two nanowires by using the nonequilibrium Green's function technique. We consider that the nanowires are in proximity to s-wave superconducror substrates, and Majorana bound states (MBSs) are induced at their ends. It is also assumed that the two nanowires are not aligned in the same orientation, but form a bent angle with respect to each other.

-[MoO]-based multifunctional hybrid material for high catalytic performance on the cycloaddition of CO, esterification and knoevenagel condensation.

Developing materials with excellent properties has become the norm in the field of basic research, prompting us to explore highly robust hybrid materials based on electron-rich POMs and electron-deficient MOFs. Herein, a -[MoO]-based hybrid material of [Cu(BPPP)]{-[MoO]} (NUC-62) with excellent physicochemical stability was self-assembled under acidic solvothermal conditions from NaMoO and CuCl in the presence of a designed chelated ligand of 1,3-bis(3-(2-pyridyl)pyrazol-1-yl)propane (BPPP), which has sufficient coordination sites, spatial self-regulation and great deformation ability. In NUC-62, each of two tetra-coordinated Cu ions and two BPPP are unified into one dinuclear unit serving as the cation, which is interactively linked to -[MoO] anions rich hydrogen bonds of C-H⋯O.

[Prediction of superantigen active sites and clonal expression of staphylococcal enterotoxin-like W].

The docking and superantigen activity sites of staphylococcal enterotoxin-like W (SElW) and T cell receptor (TCR) were predicted, and its SElW was cloned, expressed and purified. AlphaFold was used to predict the 3D structure of SElW protein monomers, and the protein models were evaluated with the help of the SAVES online server from ERRAT, Ramachandran plot, and Verify_3D. The ZDOCK server simulates the docking conformation of SElW and TCR, and the amino acid sequences of SElW and other serotype enterotoxins were aligned.

Timing of endoscopy for acute variceal bleeding in patients with cirrhosis (CHESS1905): A nationwide cohort study.

Background: Endoscopy plays an important role in the management of acute variceal bleeding (AVB) in patients with cirrhosis. This study aimed at determining the optimal endoscopy timing for cirrhotic AVB.

Methods: Patients with cirrhosis with AVB across 34 university hospitals in 30 cities from February 2013 to May 2020 who underwent endoscopy within 24 hours were included in this study.