Indian Institute of Science Bangalore

Catalytic Asymmetric Allylic Substitution with Alkynylogous Silyl Enol Ethers En Route to Chiral Allenes

Abstract Despite their potential as building blocks of allenes, alkynylogous enol silanes have rarely been employed in organic synthesis. Herein, we establish their utility as nucleophiles in catalytic asymmetric allylic substitution, which results in skipped enallenes bearing tw...

Off-diagonal Rado number for x+y+c=z and x+qy=z

Ramsey-type problems for linear equations began with Schur’s theorem and were systematically generalized by Richard Rado. In the off-diagonal framework for two colors, one considers two different linear equations ( E 1 , E 2 ) and determines the minimum integer N for which any re...

Multiyear dual-isotope fingerprinting at South Asian receptor sites constrains carbon monoxide sources and enhanced oxidation

Carbon monoxide (CO) is an indirect short-lived climate forcer with uncertainties both in sources and its role in atmospheric oxidation. Based on nine winter-long dual-isotope campaigns at two South Asian receptor sites intercepting the continental outflow, we quantified CO sourc...

Limited global awareness of invasive alien species and little support for their management

Invasive alien species (IAS) are one of the main drivers of global change and can cause a wide range of negative ecological and social impacts. Addressing these impacts requires management actions, which can fail to be effective when not supported by the public. Here, we conducte...

A Fast and Generalizable Deep Neural Network for the Detection of Atrial Fibrillation

Atrial fibrillation (AFib) is the most prevalent sustained cardiac arrhythmia, yet most deep learning detectors are validated on a single cohort and few report uncertainty. We developed a compact 14M-parameter convolutional neural network for binary AFib classification from 10 s,...

Anomalous Photoluminescence in Undoped and Mn2+-Doped 2D Hybrid Lead Halide Systems

Abstract Two-dimensional (2D) hybrid lead halide systems have emerged as promising materials for optoelectronic applications due to their remarkable optical properties and enhanced moisture stability. However, photoluminescence (PL) from such 2D samples has been reported to vary...

Electrolyte-Induced Band Bending and Barrier Tuning to Enhance Photodetection in Inkjet-Printed Organic–Inorganic Heterojunctions

Abstract Hybrid organic–inorganic heterojunctions have attracted considerable interest in optoelectronic applications, as they combine the excellent electronic transport of inorganic semiconductors with the ease of processing and tunability of organic conductors. While the perfor...

Role of core–shell boron distribution in the long-term stability of M23C6 precipitates in modified 9Cr–1Mo steel

Boron (B) improves the creep resistance of ferritic–martensitic steels by suppressing coarsening of M 23 C 6 precipitates, though the mechanism remains unresolved. Using 3D atom probe tomography on tempered and aged modified 9Cr–1Mo steel, we report, for the first time, a core–sh...

Wideband dielectric resonator antenna for K-Band/n258 applications with intelligent response filtering

This work presents a wideband rectangular dielectric resonator antenna (RDRA) integrated with a machine learning (ML) response filtering framework for K-band and 5 G NR n258 applications. The antenna utilizes an RT/Duroid 5880 substrate, a partial ground plane, a heart-shaped str...

Hydrogeochemical controls on drinking and irrigation water suitability of spring water in the Champawat District, Uttarakhand: insights from multivariate statistical analysis

ABSTRACT In the Himalayan region of Uttarakhand, natural springs constitute the primary freshwater source for a large rural population. To investigate the spring water quality of the Lohawati catchment, 27 spring water samples (n = 27) were collected and analyzed to identify the...

Tellurium-Based Hybrid Structure for Thermal Management Applications

Abstract Personal thermal management (PTM) textiles have been increasingly explored for automotive applications to regulate vehicle surface temperature by reducing ice formation in cold environments without external energy. Developing adaptable PTM fabrics offers a promising stra...

Reversible, Chemically Gated FRET via Ligand‐Activated Acceptors

ABSTRACT Genetically encoded fluorogen‐activating tags enable conditional fluorescence, yet the structural and excited‐state mechanisms underlying ligand activation remain unclear. Here, we combine X‐ray crystallography, computational modelling, and fluorescence lifetime imaging...

Regime-dependent evaporator wall temperature distribution in a small diameter thermosyphon

Passive two-phase heat transfer devices, such as thermosyphons, are widely used in applications ranging from geothermal systems to electronics thermal management. With the continuous miniaturization of electronics, there has been a growing attention towards small-diameter thermos...

Anisotropic In-Plane Thermal Conductivity of Freestanding Few-Layer ReS2

Abstract ReS2 is a low-symmetry transition-metal dichalcogenide exhibiting strong in-plane anisotropy, weak interlayer coupling, and stacking-dependent physical properties. While anisotropic thermal conductivity has been reported in bulk ReS2, experimental studies on stacking-dep...

Land use sequestration potential and uncertainties in India’s net-zero pathway

Land use can contribute substantially to climate change mitigation through carbon storage in vegetation and soils. We assess how India’s long-term land-use carbon sequestration may vary under different policy pathways and biophysical uncertainties by integrating economic dynamics...

Signatures of rapid trajectory control during finger and arm movements

Normative goal-directed hand and finger movements often follow invariant kinematics, characterized by approximate straight-line trajectories. A fundamental unresolved issue is whether movement trajectories are planned or whether they are a consequence of trajectory-free online co...

A Tetrameric Cobalt(II) Assembly Integrating Aggregation-Induced Emission and Weak Antiferromagnetic Coupling

Abstract A supramolecularly rigidified tetrameric cobalt(II) assembly, [Co4T8(H2O)2] (T-Co), where T = Tropolonate ion, has been constructed using tropolonate ligands to investigate the interplay between aggregation-controlled photophysics and magnetic exchange interactions in mu...

Liquefaction assessment of non-woven geotextile-reinforced sand under high-frequency torsional excitation using resonant column tests

The current research examines the liquefaction potential of non-woven geotextile-reinforced fully saturated loose sand by imposing high frequencies (14-60 Hz) torsional excitations with the usage of resonant column (RC) undrained tests. Tests have been conducted for different but...

Strain-Release Driven, Lewis Acid-Catalyzed, and Hexafluoroisopropanol-Mediated Reactions of Bicyclo[1.1.0]butanes

Conspectus Strain-release driven transformations of bicyclo[1.1.0]butanes (BCBs) have emerged as a powerful strategy for rapidly constructing functionalized cyclobutanes and complex bicyclic architectures through radical, nucleophilic, and electrophilic pathways. Owing to their u...

Multiscale Symmetry Breaking Enables Tunable Magnetic Anisotropy and Damping in Co 2 FeAl Thin Films

ABSTRACT The ability to simultaneously engineer magnetic stability and spin dissipation remains difficult to realize in scalable metallic thin films. Here, we show that multiscale symmetry breaking provides a route to achieve this control in polycrystalline Co 2 FeAl films withou...