Hebei Normal University

High‐Resolution Temperature and Precipitation Variability in Northeast Asia Since the Last Glacial Maximum Recorded in an Annually Laminated Maar Lake

Abstract Temperature and precipitation variability in monsoonal Asia is central to understanding regional climate dynamics and global teleconnections. How post‐LGM warming and hydroclimate change unfolded in Northeast Asia, and how they were linked to external forcing, remain poo...

A photoinduced, FeX3-catalyzed, stereo- and regio-selective halofunctionalization of olefins with MXn via a radical-polar crossover reaction

The classical reaction for the halofunctionalization of olefins involves hazardous and highly toxic molecular halogens. The goal of chemists is to establish green, inherently safe, highly efficient and sustainable synthetic methods. Here, we report a green approach for the halofu...

Dual Electrophilic–Nucleophilic Behavior of M(II) Centers (M = Co, Ni, Cu) in M(acac)2 Complexes: Insights into Intermolecular Noncovalent Interactions

Abstract Quantum-chemical calculations were performed to elucidate the electrophilic and nucleophilic properties of first-row transition-metal centers in M(acac)2 (M = Co2+, Ni2+, Cu2+; Hacac = acetylacetone), as well as the nature of the resultant M···N/I interactions with pyraz...

Quasi-high-entropy alloy CoNiCuMnCd/NC directly derived from ZIF-type MOFs as counter electrode catalysts for dye-sensitized solar cells

High-entropy alloys (HEAs) as counter electrode (CE) catalysts can promote the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs), due to their intrinsic characteristics of the high configurational entropy, lattice distortion, delayed diffusion and cocktail e...

Spent Iron-Char Catalysts Are Not Waste: A Viewpoint on Integrating Methane Pyrolysis with Steelmaking

Abstract Methane pyrolysis offers a CO2-free pathway to hydrogen production; however, its commercial deployment remains hindered by a stoichiometric constraint: each kilogram of H2 co-produces three kilograms of solid carbon, which rapidly deactivates the catalyst. Conventional s...

F-Convexity of Real Functions

Let F be a family of sets in Rd. A set M⊂Rd is called F-convex if for any points x,y∈M there is a set F∈F such that x,y∈F and F⊂M. A function f:R→R is called F-convex if its epigraph is F-convex. In this paper we investigate various F-convexities for real functions

Exercise-mimicking effect of exogenous lactate administration: Promoting visceral fat reduction via ventromedial hypothalamic SF-1 neurons in female rats

Lactate, a metabolic product of high-intensity training, may possess exercise-mimicking effects that promote fat loss via the hypothalamic-adipose axis, yet its neuronal targets remain unclear. This study investigated whether lactate administration mimics HIT-induced fat loss thr...

A NOTE ON TREE–CYCLE RAMSEY NUMBERS

Abstract Let R ( T n , C m ) $R(T_n,C_m)$ upper R left parenthesis upper T Subscript n Baseline comma upper C Subscript m Baseline right parenthesis denote the Ramsey number of a tree T n $T_n$ upper T Subscript n on n $n$ n vertices versus a cycle C m $C_m$ upper C Subscript m o...

Accelerated Charge Recombination in MOF Cocrystals Enables Efficient NIR‐Driven Photothermal Polymerization

ABSTRACT Understanding charge transfer across donor‐acceptor interfaces is essential for designing high‐performance optoelectronic materials. Herein, we construct host‐guest metal‐organic framework (MOF) cocrystals employing a calcium‐based naphthalenediimide (NDI) host and elect...

Accelerated Charge Recombination in MOF Cocrystals Enables Efficient NIR‐Driven Photothermal Polymerization

Understanding charge transfer across donor-acceptor interfaces is essential for designing high-performance optoelectronic materials. Herein, we construct host-guest metal-organic framework (MOF) cocrystals employing a calcium-based naphthalenediimide (NDI) host and electron-rich...

Access to Sb III -containing polyoxotungstates with structure-dependent catalytic enhancement toward Knoevenagel condensation

Abstract Owing to the unique lone-pair effect and pronounced hydrolytic tendency, the controllable synthesis of SbIII-containing polyoxometalates (POMs) remains a significant challenge. Rather than being confined as internal heterogroup, the employment of SbIII as an accessible m...

The miR168a– TaAGO1b module improves Fusarium head blight resistance and yield in wheat

ABSTRACT Fusarium head blight (FHB) is a devastating fungal disease of wheat that causes severe yield loss and mycotoxin contamination. Wheat varieties offering higher grain yield while maintaining moderate resistance to FHB are highly desirable. Here, we report that microRNA168a...

Diorganotelluride···N Chalcogen Bonds: Analysis and Tuning of Two σ‐Holes

Organotellurium(II) compounds contain two σ‐holes that may be fine‐tuned through substituents. This work investigates the structural chemistry of two new chalcogen bond (ChB) aggregates of organotellurium(II) compounds and the strong bases 1,4‐diazabicyclo[2.2.2]octane (DABCO) an...

A semantic–kinematic mapping framework for user-centered transfer-assist nursing robot design

Abstract To address the limited integration of affective expectations into transfer-assist nursing robot design, this study proposes a semantic–kinematic affective design framework and applies it to the development of a transfer-assist nursing robot. The framework first construct...

Mitochondrial Genome Comparison and Phylogenetic Analysis of the Family Carabidae (Coleoptera: Adephaga)

The family Carabidae, one of the largest families within Coleoptera, represents one of the most important groups of predatory insects and bioindicators in ecosystems, playing significant roles in agricultural pest control and ecological environment assessment. However, the phylog...

Multiscale Pore Architecture and Fractal Heterogeneity of Coal, Shale, and Tight Sandstone: An Integrated HMIP–N2/CO2 Adsorption–NMR Characterization Framework

Abstract Comprehensive characterization of multiscale pore structures in unconventional reservoirs is crucial for evaluating gas storage, migration pathways, and production potential. This study presents an integrated, multimethod investigation of Lower Jurassic low-rank coal, lo...

Enzymatic Hydroxylation vs Desaturation: Mechanistic Insights from the Case of Diiron Alkane Monooxygenase AlkB

Abstract Understanding the enzymatic catalytic preferences for hydroxylation or desaturation could provide useful information for the potential regulation and engineering of enzymatic activity. AlkB, a non-heme diiron-dependent alkane oxygenase that catalyzes the hydroxylation of...

Furin deficiency in excitatory neurons leads to cognitive dysfunction and glutamatergic synaptic impairment

Furin, a pivotal member of the proprotein convertase family, exhibits markedly diminished expression in both Alzheimer’s disease (AD) patients and animal models. However, the precise mechanisms by which furin regulates AD-associated cognitive impairment have yet to be fully eluci...

Rapid screening and taste mechanism investigation of novel umami peptides from krill using combined virtual and actual enzymatic hydrolysis

Abstract To enhance the utilization value of krill, this study investigated umami peptides in krill using cutting-edge techniques, including virtual proteolysis combined with actual enzymatic hydrolysis, machine learning models, molecular docking, and molecular dynamics simulatio...

Enhancing adult lifelong learning through data fusion algorithms and quality assurance

This study presents a Data Fusion + Random Forest (RF) framework to predict adult learners’ educational outcomes, such as dropout risk and course completion. Adult lifelong learning is crucial for personal and professional growth, but challenges like high dropout rates and low en...