Regioselective Suzuki-Miyarua Cross-Coupling for Substituted 2,4-Dibromopyridines Catalyzed by -Symmetric Tripalladium Clusters.

Multipalladium clusters possess peculiar structures and synergistic effects for reactivity and selectivity. Herein, -symmetric tripalladium clusters (, 0.5 mol %) afford C-regioselective SMCC of 2,4-dibromopyridine with phenylboronic acids or pinacol esters (C:C up to 98:1), in contrast to Pd(OAc) in ligand-free conditions.

Dynamic classification and attention mechanism-based bidirectional long short-term memory network for daily runoff prediction in Aksu River basin, Northwest China.

Inland river runoff variability is pivotal for maintaining regional ecological stability. Daily flow forecasting in arid regions is crucial in understanding water body ecological processes and promoting healthy river ecology. Precise daily runoff forecasting serves as a cornerstone for ecological evaluation, management, and decision-making.

Global Trends in the Incidence and Primary Causes of Femoral Fractures, Excluding Femoral Neck Fractures: A Global Epidemiological Study.

Purpose: Fractures pose a significant global health challenge, with varying incidence trends and causes across demographics and regions. This study aims to analyze global patterns in the incidence and primary causes of femoral shaft fractures.

Methods: Data from the Global Burden of Disease database were analyzed for femoral fractures (excluding femoral neck fractures) by age, gender, and socio-demographic index regions.

[Effects of Xihuang Pills on angiogenesis, invasion, and metastasis of p rostate cancer based on FAK/Src/ERK pathway].

Based on the focal adhesion kinase(FAK)/steroid receptor coactivator(Src)/extracellular regulated protein kinase(ERK) pathway, this study explored the effects of Xihuang Pills on angiogenesis, invasion, and metastasis in prostate cancer. Liquid chromatography-tandem mass spectrometry(LC-MS/MS) was used to analyze and identify the active ingredients of Xihuang Pills. Bioinformatics techniques, including R language and Perl programs, were employed to analyze the interactions between prostate cancer-related targets and the potential targets of Xihuang Pills.