Conventional surface-enhanced infrared absorption (SEIRA) relies on precise spectral overlap between molecular vibrational resonances and plasmonic modes, requiring strict nanofabrication and resulting in inherently narrowband operation. Here, we experimentally demonstrate an angle-tunable off-resonant SEIRA platform on a simple flexible plasmonic 1D metagrating (FPM). The FPM is fabricated in a single step and has an extended spectrally steerable Fano mode. The deterministic angle tuning sup...

Global demand for natural aggregates has grown as a result of the rapid urbanization and infrastructure development, thus increasing the depletion of the resources. Steel slag, a by-product of industry, is a potential substitute. Unlike many previous studies that investigated partial replacement or relied on supplementary cementitious materials, fibres, or chemical admixtures, the present study evaluates complete replacement of both fine and coarse natural aggregates with steel slag in a plai...

The sustainable electrosynthesis of H2O2via the two-electron oxygen reduction pathway requires highly selective catalysts. Viologen-based porous organic polymers show promise as metal-free electrocatalysts. By tuning the size of the secondary building block in polymers, we modulate the positive charge density, optimize O2 adsorption and intermediate stabilization, and achieve enhanced kinetics and H2O2 selectivity. This journal is © The Royal Society of Chemistry, 2026.

[No abstract available]

Background SARS-CoV-2 continues to exert a profound impact on global health by inducing inflammatory and metabolic dysregulation. Purpose Our study investigates the therapeutic potential of polyherbal formulation, Ayush-64, in mitigating SARS-CoV-2 Spike-induced immunometabolic modulations. The COVID-19 illness has long-lasting effects in terms of multi-organ effects, particularly in the nervous system. Study design With post-COVID complications, we assess the efficiency of this phytocompound...

Powered two-wheeler (PTW) riders face disproportionately high crash risk worldwide, particularly in urban contexts where time pressure is intrinsic to modern mobility and delivery systems. Despite its prevalence, the quantitative impact of time-induced cognitive stress on PTW rider performance remains insufficiently understood. We address this gap using a controlled simulator experiment, analyzing a high-resolution dataset from 153 riding sessions by 51 experienced riders exposed to no time p...

Reconfigurable photonic circuits are essential for programmable optical signal processing and high-speed optical interconnects

As anthropocene explains the influence of behavior and activities of humans over environment, this chapter attempts to trace the possible philosophical roots which might have had influenced and generated the drives in humans to subjugate 1 nature. It creates a dialectical situation while debating the ‘dominancy’ (of human) either as an immanent predisposition inherent in nature or as a nurture-product imposed upon Homo sapiens by the history of thought which is highly anthropocentric. Besides...

GeoHam is a geometric-regularization framework inspired by Hamiltonian mechanics for remote-sensing change detection (CD). It replaces conventional feature subtraction with multiscale Störmer-Verlet symplectic integration applied to learned feature dynamics. Unlike physics-informed neural networks (PINNs) that enforce PDE residuals from physical laws, GeoHam exploits the mathematical structure of Hamiltonian mechanics as an inductive bias on bitemporal feature trajectories: the symplectic two...

Inflammation is essential for host defense and tissue repair, yet its dysregulation contributes to the development of numerous chronic diseases. Macrophages play a central role in these processes through their remarkable functional plasticity and ability to adopt pro-inflammatory or pro-resolving states. Nanoparticles have emerged as promising immunomodulatory platforms capable of reprogramming macrophage function through precisely engineered physicochemical properties. This review examines h...

Background Despite a general improvement in the HIV burden over the past two decades, gendered social determinants including intimate partner violence (IPV) continue to affect women's vulnerability to HIV, which could be further exacerbated as resources dwindle over the coming years. Our study aimed to quantify recent trends in the HIV burden, the magnitude of the HIV burden associated with IPV, and the potential impact of declining financial support globally. Methods Using the Global Burden ...

Surface passivation has showed to be a successful strategy to enhance the overall performance of the dye-sensitized solar cells (DSSCs) and reduce the charge recombination kinetics. Machine learning (ML), however, has recently made a significant impact on the field of energy by determining secreted patterns and classifying correlations between desired output values and input objects. Organic passivating materials, compared to other passivating materials, play a significant role in reducing th...

While agricultural modernization has driven significant agricultural advancements, it has also fuelled agricultural pollution despite agriculture being the prime beneficiary of technological innovations more than any other sector. Working at the nanoscale (1–100 nm), nanoagriculture offers revolutionary biotechnological and agri-industrial applications. As ‘magic bullets’, nanoparticles can encapsulate herbicides, fertilizers, pesticides or even genes, and deliver directly to plant cell organ...

The rapid growth of next generation wireless communication systems has significantly increased the complexity of resource management in Radio Access Networks (RANs). Modern 5G and future 6G networks require intelligent and adaptive resource allocation mechanisms capable of handling dynamic traffic conditions while satisfying diverse Quality of Service (QoS) requirements. Conventional static and heuristic based approaches often fail to efficiently manage varying network demands, motivating t...

Free-space optical (FSO) communication offers licence-free, high-bandwidth connectivity ideal for sixth-generation backhaul networks, but atmospheric turbulence and beam misalignment cause frequent deep fades that threaten link reliability. Adding a parallel radio-frequency (RF) sub-link and applying adaptive maximal ratio combining at the relay significantly improves availability, while non-orthogonal multiple access (NOMA) on the second hop allows simultaneous service to multiple users wit...

Reconfigurable Intelligent Surfaces (RIS) have emerged as a promising technology for next-generation wireless communication and electromagnetic wave manipulation, offering low-cost, energy-efficient, and highly adaptable alternatives to conventional systems. This thesis presents a comprehensive study on the design, analysis, and development of meta surface-based RIS architectures, progressing from passive digitally coded meta surfaces (DCMS) to advanced reconfigurable and multifunctional stru...