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1970 articles for “3-acetyl-7-bromo-2H-chromen-2-one” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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5-Methyl-2-phenyl-2,4-dihydro-3H-pyrazol-4-one: Synthesis and Reactions
Abstract: The presence of the five-member pyrazole nucleus in different structures leads to a large diversity in its applications. In almost every research study, the pyrazole derivatives biological importance faces a competitive challenge in areas of technology, medicine and agriculture. This reflects the description of these derivatives as antibacterial, antifungal, anticancer, antidepressant, anti-inflammatory, anti-tuberculosis, antioxidant as well as antiviral agents. In our review, we will discuss and show the highlights of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 76–87 Read article
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A New Protocol for The Synthesis of 5-(azidomethyl)-4-phenyl-1H- 1,2,3-triazole From Baylis-Hillman Adducts Derived from Nitro Olefins.
Abstract: The Baylis-Hillman adducts derived from nitroolefins have been convenientlytransformed into 5-(azidomethyl)-4-phenyl-1h-1,2,3-triazole via simple reaction condition. These compounds have been demonstrated for the synthesis of azidomethyl is highly biological reactive compounds. This novel bromo derivative of the BH adduct was simply treated with mole percentage of sodium azide in reactive condition. As a result, these novel azidomethylcompounds were extremely encouraging and provided fresh chances for building libraries of several new molecules. …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 42–46 Read article
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Fabrication of 3D Printer
Abstract: This article gives us a insight about 3D printer technology considering its concepts, history and technology of a 3D printer. The major points covered in this article are Introduction of 3D printer, background, problem statement and scope of 3D printer. The printing process involves creating of a 3-dimensional model, converting it into. STL file, slicing it, feeding the stl file to the 3D printer and the final printing process done …
Published in Journal of Mechatronics and Automation · Vol. 7, Issue 2, 2020 · pp. 10–13 Read article
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Optimizating Pitting Corrosion in 3.5 N NaCl Medium of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets Using Genetic Algorithm
Abstract: Austenitic stainless steel sheets have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, pulsed current micro plasma arc welding (PCMPAW) was found beneficial due to its advantages over the conventional continuous current process. This paper highlights …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 132–142 Read article
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Electrical Conductivity and Antibacterial Studies on Chemically Synthesized Poly (2-Methyl Aniline-co-2-Chloro Aniline)-Blend-Polyurethane
Abstract: AbstractElectrically conducting copolymer blend, poly (2-methyl aniline-co-2-chloro aniline)-blend-polyurethane has been synthesized chemically by oxidative polymerization technique using 0.3 M ammonium persulphate (APS) as oxidant, 0.1 M of the anionic surfactant, sodium lauryl sulphate and 1 M HCl as dopant. The formation of the copolymer blend has been confirmed by comparison with the spectral data obtained for the copolymer which was synthesized under the same conditions and characterized. The copolymer blend …
Published in Journal of Polymer & Composites · Vol. 5, Issue 1, 2017 · pp. 7–14 Read article
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Identification of the Dietary Risk Factors of Diabetes Mellitus Type 2 among Employees of Aligarh Muslim University Aligarh: An Observational Study
Abstract: Background: Type 2 diabetes mellitus is closely related to lifestyle factors such as diet, physical activities, alcohol, smoking, calorie intake as well as obesity and positive family history. Available data suggest that diet is the main culprit and a change in dietary habits and dietetics has a greater potential to improve T2DM. Aims and Objectives: To identify the dietary risk factors of T2DM and find out the association of established …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 7, Issue 2, 2018 · pp. 20–25 Read article
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To Compare the Anti-Bacterial Activity of Uva Ursi 200 And Cantharis Vesicatoria 200 In Isolated E-Coli of Different Urine Samples by Kirby Bauer Disc Diffusion Method
Abstract: Background: The most common bacterial infections are Urinary Tract Infections (UTI), primarily caused by Escherichia coli (E. coli), a gram negative bacterium responsible for 80-90% of community-acquired UTIs. The rise of antibiotic-resistant E. coli strains has increased the demand for Homoeopathic remedies. This study explores the antibacterial efficacy of Uva ursi 200 and Cantharis vesicatoria 200, using Kirby-Bauer Disc Diffusion Method, by comparing the Zone of Inhibition (ZOI) of those …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 13, Issue 3, 2026 Read article
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ML-Based Predictive Modeling of Mechanical Properties in 3D-Printed Polymer Composites for IoT Applications
Abstract: This study aims to develop an interpretable and high-accuracy machine learning framework for predicting the mechanical properties of 3D-printed fiber-reinforced polymer composites, with a focus on structure–property correlations relevant to polymer processing and functional performance. Composite specimens based on PLA and ABS matrices were fabricated using FDM with varying weight fractions (5–20 wt%) of carbon and glass fibers. Standardized mechanical testing (ASTM D638, D256, D790) was performed to evaluate tensile …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 61–78 Read article
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Adoption of One-Touch Emergency Alert Apps: User Authentication, Simplicity, and Trust for Human Safety
Abstract: Quick reactions to disasters are extremely important to the safety and health of people. Nonetheless, another frequent problem with emergency cases is the time lag between reports of the incidents and the success and timely response of the concerned authorities. Mobile-based emergency alert systems have thus come in as a potential solution to this problem, given that they enable straightforward and direct communication between the citizens and the law enforcement …
Published in International Journal of Mobile Computing Technology · Vol. 4, Issue 1, 2026 · pp. 01–13 Read article
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Heterogeneous Teleoperation Model for Controlling 3D Printed Humanoid Robot Arm with 5 DOF using 3 DOF Exoskeleton
Abstract: The main objectives of the present work are to model and implement a control system of five degrees of freedom (5 DOF) humanoid arm by using an exoskeleton system with 3 DOF. The exoskeleton system is used to transport the movements of the human’s arm to the controller to control the humanoid arm by using sensors at each target joint to measure the angular displacement of it. To achieve this …
Published in Journal of Control & Instrumentation · Vol. 10, Issue 2, 2019 · pp. 1–15 Read article
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Determination of The Mean Fetal Biometrics and The Mean of Ratio of biometrics in 2nd and 3rd Trimester of Pregnancy in Correlation with Fetal Gestational Age: As a Predictive Biometric Parameters
Abstract: Introduction: Fetal cerebellar diameter in normal gestation is also highly correlated with fetal growth indices. Objective: To determine to mean fetal biometric ratios in 2nd and 3rd trimester of pregnancy on ultrasound as a predictive biometric parameter of gestational age. Study Design: Cross-sectional study. Material and Methods: A total of 140 pregnant women in their second and third trimester were included in this study. BPD, AC, FL and TCD were …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 7, Issue 3, 2018 · pp. 12–16 Read article
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Prevalence of Perceived Stigma and Associated Factors among People with Epilepsy in Mekelle, Tigray, Ethiopia, 2019
Abstract: AbstractBackground: Epilepsy is defined as the most common, chronic, noninfectious neurologic disease that attacks around fifty up to sixty-nine million peoples without any age, sex, religion, ethnicity boundaries. Stigma is typically a practiced or predicted social system, characterized by exclusion or rejection of a person or group. Now a day perceived stigma among people with epilepsy become public health problems in the world. Perceived stigma in epileptic patients affects many …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 10, Issue 2, 2020 · pp. 24–35 Read article
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Patterns and Risk Factors of Gestational Diabetes Mellitus among Mothers Who Visited Antenatal Clinics in Public Health Centers of Mekelle City, Tigray, Ethiopia, 2015
Abstract: Gestational diabetes mellitus is associated with significant morbidity in the short and long-term, for both mother and offspring. It is now well established that women with a history of GDM are at a significant increased risk of developing type-2 diabetes, later in life. There were limited studies conducted on pattern and risk factors of gestational diabetes mellitus in Tigray region. The aim of this study is to assess patterns and …
Published in Research and Reviews : Journal of Surgery · Vol. 5, Issue 2, 2016 · pp. 12–20 Read article
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Biomechanical Comparison of Tension-Band Wiring Fixations in accordance with Kirschner Wires Placement Modes for Olecranon Fractures: A 3D-Finite Element Analysis
Abstract: Background: Tension-band wiring is a widely accepted fixation technique and remains a standard method of surgical treatment in displaced olecranon fractures. There are 2 techniques according to the Kirschner wires (K-wires) placements; one is to insert the K-wires into the intramedullary canal of the proximal ulna and the other is provided by those anchored into the anterior cortex of the ulna. The purpose of this study was to compare biomechanical …
Published in Research and Reviews : Journal of Surgery · Vol. 10, Issue 3, 2021 · pp. 14–22 Read article
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Pharmacophore mapping, 3D QSAR, docking, and ADME prediction studies of novel Benzothiazinone derivatives
Abstract: Background Tuberculosis is a major public health concern worldwide which is caused by Mycobacterium tuberculosis. DprE1 (Decaprenyl Phosphoryl Ribose 2’- Epimerase) is the most challenging target for development of novel anti- tubercular agents because it is a small protein and located into cytoplasmic membrane. So, novel anti-TB drugs did not bound effectively with it. DprE1 catalyzes the oxidation of the 2’ hydroxyl group of DPR (Decaprenyl Phosphoryl D- Ribose) …
Published in International Journal of Antibiotics · Vol. 1, Issue 1, 2024 · pp. 59–82 Read article
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Chemical Profile and Toxicity of Fresh and Dry leaves of the Essential Oils of Vetiveria zizanioides (L.) Nash. From Southwest Nigeria
Abstract: The fresh and dry leaves of Vetiveria zizanioides (L.) Nash (Gramineae) plant was collected, air dried and authenticated at the University of Ibadan Herbarium with voucher number: UIH-23237. The plant's dried, fresh leaves were hydro distilled in a Clevenger device to extract the essential oils. The oils were characterized by Gas Chromatography-Mass Spectrometry (GC – MS) while the toxicity of the essential oils was tested using brine shrimps’ lethality assay. …
Published in Recent Trends in Cosmetics · Vol. 1, Issue 1, 2024 · pp. 44–49 Read article
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Super Ni 718 Machinability Investigation on Electrical Discharge Machining Using Hybrid Al 7(075+178) Electrode Under Abrasive Assisted Dielectric
Abstract: As aluminum alloy is the lightest metal and has the best mechanical qualities among metal, it has proven to be a perfect choice for strututal industry, particularly in the aerospace sector.7xxx alloys from the Al alloy family are widely used in aviation constructions due to their outstanding processing, welding efficiency, great specific strength & stiffness, and high toughness. The two aluminum alloys that are most frequently used in airplane structures …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 1–17 Read article
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Advancements in Metal-Plastic Hybrid Structures: Experimental Analysis and Design Optimization of 3D-Printed Honeycomb Frameworks
Abstract: The exploration of metal-plastic hybrid structures has gained significant attention due to their potential for lightweight, high-strength applications across industries such as aerospace, automotive, and construction. This study investigates the experimental and design enhancements of a metal-plastic hybrid structure utilizing a honeycomb architecture produced through 3D printing. By integrating metals with plastic polymers in a honeycomb configuration, this hybrid approach aims to combine the high strength and stiffness of metals …
Published in Trends in Machine design · Vol. 11, Issue 3, 2024 · pp. 36–43 Read article
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Design, Synthesis, and Spectroscopic Elucidation of 3-Methyl-1-Phenylpyrazol-5-One: A Cheminformatics-Aided Approach to Heterocyclic Drug Scaffolds
Abstract: Pyrazolone, a notable heterocyclic compound, has drawn increasing interest due to its broad pharmacological profile and structural versatility. The synthesis, characterisation, and biological assessment of new pyrazolone derivatives are examined in this work. A comprehensive review of existing synthetic strategies is presented, emphasizing green and efficient methodologies. Novel derivatives were synthesized using varied starting materials and catalytic systems, followed by structural confirmation through spectroscopic analyses, including NMR, IR, and mass …
Published in International Journal of Cheminformatics · Vol. 3, Issue 1, 2025 · pp. 29–40 Read article
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ONE NATION, ONE SUBSCRIPTION (ONOS) : RESHAPING LIBRARY ACQUISITION IN GOVERNMENT COLLEGES OF GUJARAT
Abstract: The study investigates the awareness and readiness of library professionals in the government colleges of Gujarat about the One Nation, One Subscription (ONOS) program. The objectives cover to evaluate library professionals’ knowledge, recognize their requirements for infrastructure and training, identify benefits and challenges they predict and recommend the idea for the betterment of the initiative. The study divided responses into five geographical regions of Gujarat like Central, East, North, South, …
Published in Journal of Advancements in Library Sciences · Vol. 12, Issue 2, 2025 Read article