Indian Institute of Technology Dhanbad

Electrochemical Selenocyanation and Thiocyanation of Azaindoles and Deazapurines

An economical and regioselective electrochemical oxidative C─H selenocyanation or thiocyanation of N ‐rich heteroarenes, such as azaindole and deazapurine, is reported utilizing graphite electrodes. The reaction proceeds without the need for any catalyst or oxidant under a consta...

Ball‐Milling‐Enabled Solvent‐ and Ligand‐Free Tsuji–Trost Reaction of C ‐, N ‐, O ‐, S ‐, and Se ‐Nucleophiles in Air: Synthesis and Late‐Stage Modification of Drugs

We report a novel ball‐milling‐enabled, ligand‐free Tsuji–Trost reaction involving C ‐, N ‐, O ‐, S ‐, and Se ‐nucleophiles with allyl and cinnamyl acetates, as well as allyl phosphate. Thiophenols and benzeneselenol have been demonstrated for the first time as nucleophiles in a...

Multidisciplinary insights into Late Pleistocene-Holocene palaeoenvironment at the archaeo-palaeontological Loltún Cave site in Yucatán, Mexico

Abstract A lack of well-dated archaeological and palaeontological sequences containing proxy-based palaeoenvironmental information has hindered the reconstruction of long-term human-biodiversity interactions in Mexico. Here, we re-evaluate the stratigraphy of the Huechil Chamber...

A fluid dual to the charged large D membrane paradigm

A bstract According to the formulation of the charged large D membrane paradigm, an arbitrary dynamic black hole solution to a theory of gravity with a U(1) gauge field is dual to the dynamics of a membrane in a non-gravitational background. This membrane is endowed with a stress...

Towards sustainable 3D concrete printing: influence of waste foundry sand on rheology and printability of OPC–LC2 systems

Concrete demand depletes natural resources and increases CO2 emissions; simultaneously, industrial waste causes land pollution. Using waste foundry sand (FS) and low-carbon limestone calcined clay (LC2) offers a sustainable solution to these challenges. In this study, quartz sand...

Contrastive Pretraining on Real LHC Jets: Transfer, Scorer Dependence and Mass Distortion

We compare contrastive pretraining on real AspenOpenJets and simulated LHC Olympics jets for background-based anomaly ranking, using matched random backbones and jet observables as controls. Equal training budgets comprise 100,000 jets per domain, one real-data shard and three se...

Contrastive Pretraining on Real LHC Jets: Transfer, Scorer Dependence and Mass Distortion

We compare contrastive pretraining on real AspenOpenJets and simulated LHC Olympics jets for background-based anomaly ranking, using matched random backbones and jet observables as controls. Equal training budgets comprise 100,000 jets per domain, one real-data shard and three se...

Moire Patterns-Based Low-Cost Flexible SERS Substrates for Multi-Analyte Detection of Biological and Chemical Molecules

Abstract Reliable detection across diverse analyte classes remains a significant challenge in surface-enhanced Raman spectroscopy (SERS), particularly when a single platform must address both biological and environmental targets. This work develops a geometrically engineered Moir...

A Self-Therapeutic Upconversion Polyphenolic Nanoreactor for NIR-Assisted Multifaceted ROS Generation and Dual Chemotherapy

Abstract Conventional chemotherapy with drug-loaded hybrid nanosystems is restricted by limited drug delivery, poor loading content, internal accumulation, or premature drug release. Drug-derived nanoreactors acting as self-therapeutic agents are considered a promising approach t...

Nonlocal elastic analysis of Rayleigh wave propagation in three-layered heterogeneous media

The present study investigates the propagation characteristics of Rayleigh waves in a three-layered nonlocal medium consisting of a nonlocal fiber-reinforced layer over a nonlocal sandy intermediate layer, underlain by a nonlocal transversely isotropic half-space. The theoretical...

Optimization of Tin‐Doped CsPbBr 3 Perovskite‐Based Solar Cell: A Numerical Simulation Approach

Exceptional optoelectronic properties and rapidly improving efficiency of lead‐based perovskite solar cells (PSCs) make this renewable energy technology highly promising for commercialization. This study presents a comprehensive simulation‐based investigation of Sn 2+ ‐doped CsPb...

Visible Light-Mediated Dearomative Remote Functionalization of Arenes via a Tandem Strain-Release Spirocyclization Relay

Abstract Tandem strain-release addition cyclization reactions in bicyclo[1.1.0]butanes (BCBs) present a versatile platform for rapidly creating molecular complexity. While lactams and indolinones have been accessed using alkenes and arenes as appendages via this strategy, the dea...

Redox non-innocent ligand-controlled selective CO2 reduction to HCOOH by a Co(II) catalyst.

insertion reaction to generate HCOOH as the end product. DFT calculations lend support to the experimental findings and indicate that the formation of HCOOH is more feasible than CO.

Comparative analysis of material removal rate and surface roughness in electrochemical machining of AISI 304 steel using complexing and reducing agent mixed electrolytes

Electrochemical machining (ECM) of AISI 304 stainless steel is often limited by passivation and chromium-containing surface films, which reduce material removal efficiency and surface quality. This study investigates the effect of two electrolyte additives, ethylenediaminetetraac...

Microstructural evolution and mechanical behavior of EN AW-2014A (AlCu 4 SiMg)/SiC reinforced composites under friction stir welding

Friction stir welding (FSW) was used to join stir-cast EN AW-2014A aluminum matrix composites reinforced with 5, 10, and 15 wt.% SiC, under fixed process parameters (270 r/min, 78 mm/min, 2° tilt). This work provides the first systematic, zone-resolved analysis linking SiC weight...

Minority stress, borders and nowhereness: work–life balance among gay men

Purpose Minority stress experienced in the workplace and family domains can make work–life balance (WLB) particularly challenging for gay employees. This study explores gay men's WLB by examining (1) stressors in the work and non-work domains, (2) bi-directional spillover effects...

Titanosaurian postcranial remains from the Lameta Formation of a new fossiliferous site in Jabalpur District, Central India

The Late Cretaceous (Maastrichtian) Lameta Formation of central and western India is well known for its rich dinosaurian fossil assemblage, particularly titanosaurian remains. In central India, the Bara Simla, Chota Simla, and Lameta Ghat areas of Jabalpur District and the Pisdur...

A Bayesian Gaussian Process Framework for the Discrete Inversion of 2D Gravity Data: Applications to the West Korea and Godavari Basins

Summary While Bayesian inference is widely applied to magnetotelluric, seismic, and magnetic datasets, its application to gravity anomalies remains relatively unexplored. To address this, we introduce InDIA (Inversion of Density Interface and its Application), a Python-based Baye...

On weak bounded negativity conjecture

In the first part of this article, we give bounds on self-intersections C2 of integral curves C on blow-ups BlnX of surfaces X with the anti-canonical divisor −KX effective. In the last part, we prove the weak bounded negativity for self-intersections C2 of integral curves C in a...

Solvent-DirectedAssembly and Rheological Dynamicsof Multistimuli-Responsive Mg(II) and Cu(II) MetallosupramolecularFlexible Nanoscaffolds for Biological Applications

Abstract Mg(II) and Cu(II) sources with decanedioic acid (DDA) were utilized for the preparation of diverse mechanically flexible self-repairing supramolecular metallogels, abbreviated as Mg-DMSO-DDA-DMSO, Mg-DMSO-DDA-DMF, and Cu-water-DDA-DMSO. The strategy of employing a low-mo...