Electrocatalytic Micelle-Driven Hydrodefluorination for Accessing Unprotected Monofluorinated Indoles.

Toxic organic solvents and electrolytes, traditionally indispensable for electro-organic synthesis, are now being reconsidered. In developing more sustainable electro-organic synthesis, we've harnessed the aqueous micelles as solvents and electrolyte-like structures when deformed under an electric field. The technology is showcased in synthetically highly valued hydrodefluorination reactions of difluorinated indoles.

Lipoxygenases (LOXs): Will turning off this genetic switch help safeguard the flavor and nutritional quality of stored lipid-rich staple foods?

Beyond storage capacity, long-term grain storage faces significant challenges due to the activity of lipoxygenases (LOXs). These enzymes catalyze the production of volatiles from free fatty acids, leading to stale odors and off-flavors. These changes degrade the quality of stored grains, even under regulated conditions, affecting the profitability of stored products to the farmers and the assurance of high-quality food for consumers.

Tobacco consumption behavior and its associated factors among in-school adolescent students of Saptari, Nepal.

Tobacco consumption among adolescent students in Nepal has grown to an alarming proportion, raising serious concerns about associated factors. The study aimed to describe the tobacco consumption behavior of in-school adolescent students and its associated factors. A cross-sectional survey design was followed to conduct the study.

Synthesis of -dA Damaged DNAs to Probe the Replication Ability of Human Translesion Polymerases.

The DNA adducts formed by the alkenylbenzene natural products, safrole (SF) and methyleugenol (MEG) are primarily attributed to their reported carcinogenic properties. Herein, we report a concise strategy to access -Ac-SF/MEG-dA phosphoramidites, which were selectively incorporated into DNA oligonucleotides by solid-phase DNA synthesis. The replication studies using human polymerases hpolκ and hpolη showed that both polymerases replicate these adducts error-free, which indicates that these polymerases do not contribute to the adduct-induced mutagenicity.

Design and Synthesis of Triazine-Based Hydrogel for Combined Targeted Doxorubicin Delivery and PI3K Inhibition.

Melanoma, an aggressive skin cancer originating from melanocytes, presents substantial challenges due to its high metastatic potential and resistance to conventional therapies. Hydrogels, 3D networks of hydrophilic polymers with high water-retention capacities, offer significant promise for controlled drug delivery applications. In this study, we report the synthesis and characterization of hydrogelators based on the triazine molecular scaffold, which self-assemble into fibrous networks conducive to hydrogel formation.

All-electrical recursive generation and time-domain mode division multiplexing of Hermite-Gaussian pulses for optical, THz and RF links.

Space division multiplexing (SDM) with Hermite Gaussian (HG) modes, for instance, can significantly boost the transmission link capacity. However, SDM is not suitable in existing single mode fiber networks, and in long-distance wireless, microwave, THz or optical links, the far-field beam distribution may present a problem. Recently it has been demonstrated, that time domain HG modes can be employed to enhance the link capacity.

Engineering ultra-strong electron-phonon coupling and nonclassical electron transport in crystalline gold with nanoscale interfaces.

Electrical resistivity in good metals, particularly noble metals such as gold (Au), silver (Ag), or copper, increases linearly with temperature (T) for T > Θ, where Θ is the Debye temperature. This is because the coupling (λ) between the electrons and the lattice vibrations, or phonons, in these metals is weak, with λ ~ 0.1-0.

Northern Hemisphere sea ice variability in a transient CGCM simulation of the past 2.6 Ma.

The recent sea ice changes in the Northern Hemisphere (NH), necessitate elucidating the sea ice variability over the past 2.6 million years (Ma), when the Earth's glacial cycles transitioned from ∼41 to ∼100 kyr periodicity, following the Mid-Pleistocene Transition (MPT) period (0.7-1.

Simulating anharmonic vibrational polaritons beyond the long wavelength approximation.

In this work, we investigate anharmonic vibrational polaritons formed due to strong light-matter interactions in an optical cavity between radiation modes and anharmonic vibrations beyond the long-wavelength limit. We introduce a conceptually simple description of light-matter interactions, where spatially localized cavity radiation modes couple to localized vibrations. Within this theoretical framework, we employ self-consistent phonon theory and vibrational dynamical mean-field theory to efficiently simulate momentum-resolved vibrational-polariton spectra, including effects of anharmonicity.

Assembly of graphene oxide reduced graphene oxide in a phospholipid monolayer at air-water interfaces.

Graphene and its derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO), have propelled advancements in biosensor research owing to their unique physicochemical and electronic characteristics. To ensure their safe and effective utilization in biological environments, it is crucial to understand how these graphene-based nanomaterials (GNMs) interact with a biological milieu. The present study depicts GNM-induced structural changes in a self-assembled phospholipid monolayer formed at an air-water interface that can be considered to represent one of the leaflets of a cellular membrane.

Structure-based interaction study of Samaderine E and Bismurrayaquinone A phytochemicals as potential inhibitors of KRas oncoprotein.

Ras is identified as a human oncogene which is frequently mutated in human cancers. Among its three isoforms (K, N, and H), KRas is the most frequently mutated. Mutant Ras exhibits reduced GTPase activity, leading to the prolonged activation of its conformation.

A Rare Case of Primary Chondrosarcoma of the Breast: A Case Report and Comprehensive Literature Review.

Breast sarcomas are a diverse group of malignant neoplasms originating from the mammary stroma. They are uncommon tumors, often occurring as a component of other tumors. Among malignant breast mesenchymal tumors, pure sarcomas lacking epithelial components are even rarer, comprising only 0.

Screening of Breast among Women: A Cross-Sectional Study in Nepal.

Background: Breast cancer ranks as the second most prevalent malignancy among women in Nepal. This cancer has a high likelihood of cure, if detected early. Therefore, it is imperative to emphasize awareness and screening for breast cancer in Nepal.

Prevalence of risk factors of non-communicable diseases among adults in urban slums of Burdwan municipality, West Bengal: A cross sectional study.

Background & objectives Non communicable diseases (NCD) have emerged as one of the leading causes of mortality and morbidity in India in the past few decades. This study was undertaken to determine the prevalence of NCD risk factors among adults residing in urban slums of West Bengal, India. Methods A community based cross-sectional study was conducted among adult population aged 15-69 yr in urban slums of Purba Burdwan district, West Bengal over a period of two months.

Metal-Independent Correlations for Site-Specific Binding Energies of Relevant Catalytic Intermediates.

Establishing energy correlations among different metals can accelerate the discovery of efficient and cost-effective catalysts for complex reactions. Using a recently introduced coordination-based model, we can predict site-specific metal binding energies (Δ ) that can be used as a descriptor for chemical reactions. In this study, we have examined a range of metals including Ag, Au, Co, Cu, Ir, Ni, Os, Pd, Pt, Rh, and Ru and found linear correlations between predicted Δ and adsorption energies of CH and O (Δ and Δ ) at various coordination environments for all the considered metals.

Fine Needle Aspiration Cytology of Ovarian Tumors With Histopathological Correlation: A Revisit to Borderline Category.

Background: Borderline ovarian tumors (BOTs) comprise 15%-20% of all ovarian epithelial malignancies. The majority of them are serous tumors followed by mucinous tumors. Pre-operative cytological diagnosis plays an important role with histopathology being the gold standard.

Mentorship advances antimicrobial use surveillance systems in low- and middle-income countries.

A shortage of trained personnel poses significant challenges to implementing antimicrobial use (AMU) surveillance systems in low- and middle-income countries (LMICs). Traditional training models, such as workshops, seminars and online courses, often lack the sustained engagement and support necessary for deep learning and skill mastery. This article advocates for mentorship as an effective training method for AMU professionals in LMICs.

Retraction notice to "Bioremediation of polycyclic aromatic hydrocarbons: An updated microbiological review" [Chemosphere 328 (2023) 138498].

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).

Spectroscopic approach to optimize the biogenic silver nanoparticles for photocatalytic removal of ternary dye mixture and ecotoxicological impact of treated wastewater.

The fabricating of extremely effective, economical, ecologically safe, and reusable nanoparticle (NP) catalysts for the removal of water pollution is urgently needed. This study, spectroscopically optimizes the process parameters for the biogenic synthesis of AgNP catalysts using Cledrdendrum infortunatum leaf extract. The optimization of several synthesis parameters was systematically studied using UV-Vis spectroscopy to identify the ideal conditions for AgNPs formation.

Single (375 mg/m) vs. double dose of rituximab along with mycophenolate mofetil for children with steroid-dependent/frequently relapsing nephrotic syndrome: a multicentre open-label randomized controlled trial.

Background: Optimal dosing of rituximab when given with mycophenolate mofetil (MMF) for frequently relapsing nephrotic syndrome/steroid-dependent nephrotic syndrome (FRNS/SDNS) remains uncertain.

Methods: This was a prospective, non-inferiority, open-label randomized controlled multicentre study. Children (2-18 years old) with difficult FRNS/SDNS were randomized to group A (rituximab 375 mg/m once) or group B (rituximab 375 mg/m twice; 7-14 days apart) followed by continuous MMF and 3 months of tapered steroids.

Unraveling Ruminant Feed Efficiency Through Metabolomics: A Systematic Review.

Background: Advancements in metabolomic technologies have revolutionized our understanding of feed efficiency (FE) in livestock, offering new pathways to enhance both profitability and sustainability in ruminant production.

Methods: This review offers a critical and systematic evaluation of the metabolomics methods used to measure and assess FE in ruminants. We conducted a comprehensive search of PubMed, Web of Science, and Scopus databases, covering publications from 1971 to 2023.

Thyroxine (T3)-mediated regulation of early cardiac repair in a chemical-induced hypoxia/reoxygenation model of adult zebrafish (Danio rerio).

Hypoxia-mediated cardiac tissue injury and its repair or regeneration are one of the major health management challenges globally. Unlike mammals, lower vertebrate species such as zebrafish (Danio rerio) represent a natural model to study cardiac injury, repair and regeneration. Thyroxine (T3) has been hypothesised to be one of the endocrine factors responsible for the evolutionary trade-off for acquiring endothermy and regenerative capability in higher vertebrates.

Computational Insights into Hydrogen Atom Transfer Mediators in C-H Activation Catalysis of Nonheme Fe(IV)O Complexes.

This study presents a detailed density functional theory (DFT) investigation into the mechanism and energetics of C-H activations catalyzed by bioinspired Fe(IV)O complexes, particularly in the presence of -hydroxy mediators. The findings show that these mediators significantly enhance the reactivity of the iron-oxo complex. The study examines three substrates with varying bond dissociation energies─ethylbenzene, cyclohexane, and cyclohexadiene─alongside the [Fe(IV)O(N4Py)] complex.