Shanghai Normal University

Aminohalogenation of Alkenes Enabled by I(I)/I(III) Catalysis

Abstract An iodoarene-catalyzed aminohalogenation of alkenes is reported via an I(I)/I(III) catalytic cycle. This protocol enables the unified installation of Cl, Br, and I across diverse alkenes at room temperature, employing inexpensive halogen sources. Notably, aryl- and alkyl...

Transcriptomic and Metabolomic Analyses Reveal the Phenylpropanoid Metabolism Regulatory Network in Arabidopsis Response to Colletotrichum higginsianum Infection

Colletotrichum higginsianum (Ch) is a typical hemibiotrophic ascomycetous fungus. The diseases it causes often lead to considerable economic losses in global cruciferous crop production. However, current knowledge is still insufficient for us to gain a deeper understanding of how...

Modular Synthesis of α‐Quaternary Pyrrolines by Pyridoxal‐Catalyzed Sequential Reactions With Precise Chirality Relay

ABSTRACT The construction of molecular architectures bearing two contiguous stereocenters, particularly those featuring a quaternary carbon, remains a significant synthetic challenge. Herein, we report a modular one‐pot, two‐step strategy that combines carbonyl catalysis with seq...

Freeze–Thaw Characteristics of Pb(II)-Contaminated Soil Stabilized Using NaOH- and Na 2 SiO 3 -Activated Geopolymer

Abstract Lead [Pb(II)] contamination poses a significant environmental concern due to its detrimental effects on soil physicochemical (i.e., physical and chemical) properties and structural stability. This issue is further exacerbated by freeze–thaw (F-T) cycles, which accelerate...

Are jet speeds governed by accretion modes?

Abstract Relativistic jets are observed in both stellar-mass black hole X-ray binaries (BHXRBs) and active galactic nuclei (AGNs), yet their bulk Lorentz factors differ systematically—those in black hole X-ray binaries are typically below ~2, whereas AGN jets can reach ~50. The o...

A Single-Camera System for Teacher Visual Attention Proxy Analytics and Rule-Based Teaching Behavior Segmentation in Classroom Videos

Scalable classroom process evidence can support teacher reflection and expert review, but manual observation is labor-intensive and direct eye tracking is often too intrusive for routine classroom use. This paper presents a single-camera classroom video analytics system that conv...

Machine Learning-Based Early-Warning System for Coupled Risks Within the Land–Real Estate–Finance Nexus

Real estate market risk has long been a core policy concern for governments worldwide, as risks across the land, real estate, and financial markets are inherently deeply coupled. Accurate measurement and early warning of systemic risks in the land–real estate–financial market sys...

Exploring the impact of robot-based services on hotel brand image among senior consumers

Robot has introduced new opportunities for enhancing hotel brand image, yet few studies on hotel robots have focused on senior consumers. Drawing on the Information Systems Success (ISS) model, this study examines the impact of information quality, system quality, and service qua...

Postoperative blood glucose levels: A predictor of poor survival in resected pancreatic cancer

Abstract Background: Although pancreatic resection influences glucose metabolism, the clinical impact of postoperative fasting blood glucose (FBG) on survival outcomes in patients undergoing curative-intent resection for pancreatic cancer remains unreported. Methods: Data from pa...

Teacher Caring Behaviour and Junior High School Students' Learning Engagement in Physical Education: The Mediating Roles of Psychological Capital and Learning Motivation

ABSTRACT Background Physical activity has been shown to benefit students' academic achievement and engagement, yet the mechanisms remain unknown. In the present study, we aimed to examine the relationship between teacher caring behaviour and learning engagement among junior high...

Realization of unconventional staircase topological Anderson phase transitions

Topological Anderson insulators provide a paradigm for disorder-induced topology, in which the underlying system turns from a trivial to a topological phase. It is widely recognized that the latter disappears at large disorder amplitude. Here, and contrary to the general belief,...

Prevalence and associations of biological rhythm disorders with depression and anxiety symptoms in Chinese adolescents: A multicenter study across seven provinces

Biological rhythm disruption is increasingly implicated in adolescent emotional ill-health. We conducted a multicenter cross-sectional survey of 9,498 senior high school students (15–18 years) from seven Chinese provinces. Depressive and anxiety symptoms were assessed with the Pa...

Harmony or Conflict? Grandparent–Parent Co‐Parenting Patterns and Children's Problematic Media Use

ABSTRACT Background Grandparent–parent co‐parenting is common in China, but its link to preschoolers' problematic media use is unclear. This study examined how co‐parenting patterns are associated with children's media use, focusing on the mediating role of parental digital paren...

From Digital Transformation to Circular Manufacturing: How Digital Organizational Capabilities Foster Green Innovation Under Regulatory Intervention

ABSTRACT This study investigates the influence of digital leadership, digital dexterity, and digital culture on green innovation and circular manufacturing, while examining the moderating role of government regulatory intervention within an integrated Resource‐Based View theoreti...