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32 articles for “Isomers”
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Characterization and Antimicrobial Investigations of Isomeric Pr(III) Juglonates
Abstract: Hydroxy napthoquinone derivatives constitute an interesting group of ligands which is recognized as ‘Juglones’. Isomeric Lawsone-Juglone and Phthiocol-Plumbagin are the most important members of the Juglone series and are biologically active, having natural origin. They form isomeric pairs of ligands resulting into isomeric pairs of metal chelates. The isomerism is occurring due to formation of either five or six membered rings in the metal chelates. In the present work Prasodymium …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 545–552 Read article
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Quantitative Determination of Isomeric Components of essential oils by RP-HPLC-PDA in multi-herbal tablets
Abstract: Essential oils are lipophilic and highly volatile secondary plant metabolites, principally mono- and sesquiterpenes. The widespread usage and applications in biopharmaceutics and cosmoceutics of these components drives their quality assessments criteria to be established. Gas chromatography is one of the predominantly used technique for analyzing volatile oils. Although Gas Chromatography employs estimation designs operated at elevated temperatures leading for plausible structural alterations of thermo labile compounds. Hence, a novel gradient …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 11, Issue 3, 2020 · pp. 19–28 Read article
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Isomerization of Lighter Alkanes by Heteropoly Acids: A Review
Abstract: Isomerization is the reaction used to enhance the octane number of gasoline and thereby helps in increasing the life of the automobile engines. Although a number of methods are known, researchers are still struggling for a low cost catalytic material in order to replace the previous expensive ones. Heteropoly acid has come out as one of the promising alternatives to meet the requirements and is considered to be a bi-functional …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 2, 2015 · pp. 1–14 Read article
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Derivatization of Chiral Compounds with Chiral Reagents and Separation their Isomers by HPLC System
Abstract: Chiral compounds such as alanine amino acid and s-aminethylated L-cystiene derivatized with chiral reagents such as Marfey's reagents, 2,3,4,6-tetra-O-acetyl-b-D-glucopyranosylisothiocyanate (GITC) and 2,3,4,6-tetra-O-benzoyl-b-D-glucopyranosylisothiocyanate (BGIT), were achieved and separated by optimizing good methods using high performance liquid chromatography. Keywords: Derivatization, amino acid, chiral reagent, HPLCCite this Article Khlafulla Abdulrahim M, Maga Rajab A, Elmessmary Mohamad F. Derivatization of Chiral Compounds with Chiral Reagents and Separation their Isomers by HPLC System. Research & …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 6, Issue 2, 2016 · pp. 39–43 Read article
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A Shell Programming Framework for Automated Risk Assessment and Security Control in Linux Operating Systems
Abstract: Linux operating systems are widely used in servers, embedded platforms, cloud infrastructure, and high-performance computing environments, making continuous system monitoring and risk assessment essential for maintaining security and operational reliability. Conventional risk assessment approaches often rely on individual system commands and manual interpretation of processor, memory, process, file, and security information, which can limit timely identification of abnormal system conditions. This paper proposes a Bash shell programming-based automated risk assessment …
Published in Journal of Advances in Shell Programming · Vol. 13, Issue 2, 2026 · pp. 55–66 Read article
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Light-Matter Interactions in Molecular Photochemistry
Abstract: Molecular photochemistry explores the ways of molecules interaction with light, absorb photons, and excited‐state processes, and ultimately conversion of photon energy into chemical change. Core concepts of this innovative and relevant field are matter interaction like electronic, vibrational, and rotational transitions; non‐adiabatic couplings; energy & electron transfer; and light–matter coupling in weak and strong regimes. This article briefly surveys the multiplicity of these interactions, from the fundamentals of photon absorption …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 2, 2025 · pp. 33–42 Read article
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Various Bodyweight Training Effect on the Explosive Leg Strength of Badminton Players
Abstract: This study looked at how a six-week training program affected the leg strength of university badminton players in India. The program was done with thirty badminton players from Central University of Punjab who were between 18 and 24 years old. These badminton players did a training program that had them exercise three times a week. The training program had two types of exercises: exercises where the players held a position …
Published in Recent Trends in Sports · Vol. 3, Issue 2, 2026 · pp. 32–40 Read article
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The Principles and Applications of Structural Symmetry in Natural and Engineered Systems: A Comprehensive Review
Abstract: Structural symmetry is a fundamental constraint across scientific domains, dictating the stability, functionality, and efficiency of systems from the subatomic to the macroscopic. In physics and chemistry, symmetry is mathematically defined through Group Theory, specifically point groups (e.g., Cnv, Oh). These groups govern molecular orbital interactions; high-symmetry configurations, such as the icosahedral C60 fullerene, achieve optimal energy distribution and structural resilience. In Structural Biology, symmetry is an evolutionary strategy for …
Published in Emerging Trends in Symmetry · Vol. 2, Issue 1, 2026 · pp. 30–34 Read article
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Relative Cloud Computing and its Algebraic Application in e-Diagnosis Algorithm
Abstract: The theory of cloud computing is applied to develop an e-diagnosis system in this paper. The set of real numbers and the set of patients characterized by the diseases are studied by the isomorphism. This is analyzed by the block matrix. The mapping is defined by the discrete time set. The output time is classified by the cloud space. The patient information and its representation by the block matrix over …
Published in Journal of Advanced Database Management & Systems · Vol. 7, Issue 2, 2020 · pp. 15–18 Read article
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Flexibility Analysis of Refinery Piping System
Abstract: Piping systems in downstream refineries and process plants experience a great thermal strain due to the difference between ambient and operating temperatures of process and utility fluid flowing through them. This thermal growth causes thermal stresses which leads to failure in piping components like flange leakage, deflection in piping, fractures at nozzle juncture and other fatal errors in piping system. Therefore, these piping structures must be flexible enough to support …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 53–59 Read article
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Wearable Ankle Rehabilitation Robotic Device for Stroke Rehabilitation
Abstract: AbstractAnkle rehabilitation is vital in stroke recovery and this stage is critically intervention for stroke rehabilitation. It is shown that initial first few days of acute stroke is incredibly vial, so there is strong need for rehabilitation. Here, this study helps to develop the ankle movement of the acute stroke patient. The force sensor was used to detect the tendency of the ankle movement. The main objective of this wearable …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 2, 2018 · pp. 33–37 Read article
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Medical Applications of Artificial Neural Network
Abstract: The correspondence between the natural neurons and artificial neurons is defined in this paper. Thus, an excellent idea appears to design the standard diagnosis key diagnosis systems, which security is based on the well known number theoretic problem, i.e. elliptic curve discrete logarithm problem in multiplicative group of the finite field. But now we are moving in the revolutionary idea, “The Automatic groups G converted into the multiplicative groups G’ …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 7, Issue 2, 2020 · pp. 23–30 Read article
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Effect of Algal Toxin-Anatoxin on the Growth of Acorus calamus L.
Abstract: AbstractThe growth of Acorus calamus L. in Bheemasandra accession of Tumkur district, Karnataka state was studied. The roots of Acorus calamus L., are used to build immunity in the children. Narayan Das Prajapathi 2003 in his book “A handbook of medicinal plants” reports that, it has a stimulating, nervine and anti-spasmodic properties and acts as a rejuvenative for the brain and nervous system. It is used to promote cerebral circulation. …
Published in Research & Reviews : Journal of Botany · Vol. 4, Issue 1, 2015 · pp. 26–32 Read article
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Chompound contaning oxadiazole derivatives and their potential therapeutic uses.
Abstract: Derivatives of oxadiazole or furadi azole rings constitute a significant class of heterocyclic substances. Oxadiazole is a heterocyclic, five-membered ring with two carbons, one oxygen atom, two nitrogen atoms, and two double bonds. They are produced by substituting two nitrogen (-N =) atoms for two methylene groups (= CH) in furan. The furan ring's aromaticity was significantly decreased by substituting these groups, resulting in a conjugated diene character. There were …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 1, 2024 · pp. 68–74 Read article
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Photochemical Insights into Light: Responsive Heterocyclic Compounds
Abstract: eterocyclic compounds are significant in a wide range of chemical fields. They are crucial components of the structural makeup of bioactive substances. Such compounds can be conveniently transformed through photochemical processes. Chemical reagents are rarely utilized. It is possible for members of one compound family to change into members of another. There is discussion of three key categories of photochemical rearrangements involving heterocyclic compounds: Photochemical reactions involving hydrogen atom transfer …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 2, 2023 · pp. 01–07 Read article
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Oxadiazole Derivatives Recent Progress in Synthesis and Bioactivity
Abstract: Over the past few decades, significant advancements have been made in the development of heterocyclic derivatives, leading to the production of numerous novel agents, both synthetic and natural in origin. Because of its numerous biological properties, including antibacterial, antiviral, and antifungal properties, thiazole is a special five-membered heterocyclic motif among heterocyclic compounds. It is utilized as a fundamental building block in many pharmaceutically significant compounds. To the best of our …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 1, 2024 · pp. 62–67 Read article
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Exploring Biomedical Innovations in the Formulation and Assessment of Medicated Hard Candy Lozenges Containing Metoclopramide Hydrochloride
Abstract: The objective of this study was to formulate and evaluate metoclopramide hydrochloride medicated lozenges for antiemetic action through buccal absorption by incorporating a polymer. All formulations were developed and assessed for in-vitro drug release, physical appearance, weight variation, thickness, hardness, moisture content, mouth-dissolving time, and drug content. The prepared lozenges exhibited uniformity in weight and thickness. The hardness of all formulations ranged between 7.3–15.50 kg/cm², falling within standard limits. The …
Published in International Journal of Biomedical Innovations and Engineering · Vol. 2, Issue 2, 2024 · pp. 50–62 Read article
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Study of Algebraic Structures in Discrete Mathematics and Its Applications
Abstract: Algebraic structures such as groups, rings, fields, semi groups, and lattices form the foundational framework of discrete mathematics. These structures are defined by specific sets and operations that follow algebraic laws, enabling a systematic approach to problem-solving in various domains. This paper explores the theoretical principles of these algebraic systems and highlights their vital role in computer science, cryptography, automata theory, coding theory, and software engineering. By examining their properties …
Published in Emerging Trends in Symmetry · Vol. 1, Issue 1, 2025 · pp. 35–40 Read article
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Advancements in Zeolite Catalysis for Efficient Oil Refining and Sustainable Energy Production
Abstract: Fossil fuels remain the primary reliable and cost-effective energy source for maintaining the desired product quality. This dominance stems from advancements in petrochemistry and oil refining, driven by substantial investments in research and innovation. The exceptional efficiency of oil refining is largely attributed to the use of zeolites as catalysts, a breakthrough regarded as one of the most significant achievements in modern chemistry. Their applications span across several catalytic processes, …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 2, 2025 · pp. 35–42 Read article
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Optimization of Process Parameters for Isopropylation of Toluene over Modified Zeolite using Response Surface Methodology
Abstract: Vapor-phase isopropylation of toluene with isopropanol has been investigated in a fixed-bed flow reactor under atmospheric pressure using N2 carrier gas over Cerium modified 13X zeolite catalyst. The main product of this alkylation reaction was p-cymene followed by meta-isomer, while ortho-cymene was negligibly formed. Response surface methodology was used to study the combined effects of temperature, reactant molar ratio and space time on the conversion of toluene and selectivity of …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 22–30 Read article