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835 articles for “no-effect concentration”
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Assessment of Natural Radiation Exposure from Sand and Sediment Samples Obtained from Kuakata Beach Area in Bangladesh
Abstract: In Bangladesh, Kuakata Beach situated in Patuakhali district contains some in sand and sediment. In this paper the activity concentration and absorb dose of sand and sediment collected sand and sediment collected from Kuakuta Beach were measured. The activity concentrations of radionuclides and their respective annual effective dose rates, produced by 226Ra, 232Th, 40 K were measured using a High Purity Germanium (HPGe) detector of relative efficiency 40%. The measured …
Published in Journal of Nuclear Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 18–26 Read article
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Analysis of Modulation Response of a 450 nm True Blue Semiconductor Laser by Varying Differential Gain
Abstract: AbstractIn this work the analysis of modulation response of a 450 nm InGaN based multi-quantum well (MQW) true blue semiconductor laser have been presented. The internal designing of 450 nm blue laser has been done before. but the desired wavelength of 450 nm was obtained by adjusting the exact concentration of In0.211Ga0.789N/Al0.07Ga0.93N in this work. The effects on modulation response by varying the differential gain have been observed. Also, the …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 1, 2015 · pp. 1–8 Read article
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Jala Neti: My Practice & Experience
Abstract: Jala Neti is one of the six purification methods called Shatkarmas and is explained in “ Hath Yoga Pradipika.” The word Jala Neti is Sanskrit word which literally means cleansing with water. It is nasal irrigation. The water used for this process is saline. Today’s world is getting more and more polluted with air pollution being very predominant in major cities. This makes it important for everybody to adopt the …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 10, Issue 1, 2023 · pp. 1–5 Read article
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Decolorization of Diazo Dye Amido Black 10B by a Bacterium Kerstersia sp. Strain VKY1
Abstract: Amido Black 10B, a diazo dye having various industrial applications was decolorized by a bacterium Kerstersia sp. strain VKY1. The effect of various parameters such as dye concentration, pH, temperature and NaCl concentration was investigated. At 200 mg/l dye concentration, the strain decolorized 81% of the dye at temperature 35°C and pH 7.0 in 36 h of incubation. This strain decolorized the dye over a wide range of pH (5–11), …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 37–43 Read article
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Once a Day Pellets of Theophylline by Extrusion Spheronization Technique Using Gelucire® Matrix
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Theophylline, a xanthine bronchodilator has narrow therapeutic index (5 – 15 µg/mL). The aim of the present work was to prepare once a day pellets of theophylline …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 2, Issue 1, 2011 · pp. 36–44 Read article
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Synthesis of Homogenous Colloidal Silver Nanoparticles
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Silver nanoparticles have potential applications in various fields such as biology, medicine, electronics and optical components. Suitability for these applications depends on the size, shape and chemical composition of the nanoparticles. The method of synthesis plays an important role in determining many of these properties. In this study, the formation of silver nanoparticles has been studied via the chemical reduction of …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 2, 2011 · pp. 59–66 Read article
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Morphological and Optical Characterization of Zinc Sulphide Nanostructure Synthesized by Green Route of Musa Peels
Abstract: AbstractZinc sulphide nanoparticles are very good candidate for optoelectronic applications. In this paper we have reported green synthesis of zinc sulphide nanoparticles using Musa peels available in abundance as organic waste. Various precursor ratios and various extract concentrations were used. The samples obtained were analyzed using optical and morphological characterization. Strong blue shift in absorption edges was observed for increasing concentration of thiourea. It also was influenced by concentration of …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 7, Issue 2, 2017 · pp. 23–28 Read article
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Production and Characterization of Thermostable Amylase Produced from Spore Former Thermophilic Bacilli Isolated and Screened from Teff (Eragrostis teff) Starch Rich Soil
Abstract: There is a need to isolate and screen amylase-producing bacilli bacteria from soil rich in content of teff starch at high temperature environment. Therefore, the aim of this study was to isolate and screen amylase-producing bacilli isolates and characterization of their optimal amylase activities. Amylase-producing bacilli were isolated and their enzymes characterized. Effect of temperature, pH, substrate and salt concentration were determined. All isolates have clear zone over 15 mm …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 4, Issue 1, 2014 · pp. 1–11 Read article
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Optimization of Red Pigment Yield from Monscus purpureus Solid State Fermentation (Isolation and Characterization of Monscus purpureus and Optimization of its Red Pigment Production)
Abstract: Natural pigments production is one of the important approaches recently for being natural and having therapeutic properties. Monscus purpureus was isolated from imported red yeast rice, characterized and propagated on local rice as solid state culture. Morphological characteristics which include colonies, ascosporous and conidial stage were used to identify the fungi besides its red pigment production. Red pigment was produced using 10% of seed culture of Monescus purpureus, incubated at …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 4, Issue 2, 2015 · pp. 21–29 Read article
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Bioconversion of Textile Industry Sludge into Soil Enriching Material Through Vermistabilization
Abstract: Disposal of textile sludge onto the environment imposes deleterious effects on the micro and macroflora. Vermistabilization of sludge could be considered as the pioneering solution for the prevailing concern. In this regard, textile sludge has been admixed with cow dung in the ratio of 1:2 to enhance the suitability of the sludge as growth medium for Eudrilus eugeniae. Various physicochemical and worm growth parameters have been evaluated to discern the …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 1, 2019 · pp. 51–58 Read article
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Therapeutic Efficacy of Artificial Intelligence based Counselling for Anxiety and Depression: A Systematic Review
Abstract: Background: The occurrence of the COVID-19 pandemic resulted in a notable rise in the prevalence of mental health issues, majorly anxiety and depression. Treatments like cognitive behavioural therapy (CBT) conducted in a face-to-face setting, have consistently demonstrated their effectiveness. Though not always accessible or reasonably priced for everyone, face-to- face treatment environments offer great assistance. AI-based counselling is starting to be a good replacement for those in need of real-time, …
Published in Recent Trends in Social Studies · Vol. 2, Issue 1, 2025 · pp. 8–16 Read article
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Coriander Seed Extract Enhances the Yield of T2 Bacteriophage in E. coli by Stimulating Adenylate Cyclase
Abstract: Coriander has been shown to have antibacterial activity in vitro. Relatively low concentrations of coriander seed extract added to LB broth have no effect on the growth of Escherichia coli. The addition of coriander seed extract to E. coli cultures growing in LB broth at a concentration of 0.012% enhanced the yield of T2 bacteriophage up to 225% of the control. Varying the length of time the extract was present …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 2, 2018 · pp. 7–13 Read article
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Biodegradable Polymer Nano Composites for Enhanced Drug Bioavailability
Abstract: Polymer-based nanoparticles have emerged as a revolutionary approach in drug delivery systems, particularly in enhancing the bioavailability of poorly soluble and unstable drugs. These nanoparticles, composed of both natural and synthetic polymers, serve as effective vehicles for encapsulating a wide range of therapeutic agents. Their surface characteristics can also be modified to enable targeted drug delivery, increasing the concentration of drugs at the site of action while minimizing side effects. …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 433–443 Read article
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Mechanical and Morphological Characterization of Halloysite Nanotube (HNT) Reinforced Urethane Dimethacrylate (UDMA) Dental Composites
Abstract: Dental resin composites are widely used in restorative dentistry because of their excellent aesthetics, conservative cavity preparation, and satisfactory mechanical properties. However, their long-term clinical performance is limited by polymerization shrinkage, wear, microcrack formation, water absorption, and degradation in the oral environment. This study investigates the mechanical and morphological characteristics of Halloysite Nanotube (HNT)-reinforced Urethane Dimethacrylate (UDMA) dental composites to enhance the structural performance and durability of restorative materials. UDMA-based …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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PLC Based Smart Car Parking Barrier System
Abstract: This research paper presents an innovation of PLC-based smart car parking barrier system that is intended to improve parking management and security in urban areas. To effectively control the space efficiently & enhance the reliability of the parking system. PLCs (programmable logic controllers) are the foundation of the system, and sensors are connected to enable automated vehicle entry and exit. In this case, the up and down mechanism of barriers …
Published in Journal of Control & Instrumentation · Vol. 17, Issue 1, 2026 · pp. 34–38 Read article
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Antioxidant Activity in Se-Enriched Edible Mushrooms
Abstract: Mushrooms enriched with essential minerals, such as selenium (Se), are food that compensate for dietary nutrient deficiencies. Extracts from Se-enriched Pleurotusostreatus and Lentinula edodes mushrooms contain active antioxidant compounds, which enhance the immune system. To evaluate whether Se-enrichment changes antioxidant and lipid peroxidation potential, the concentration of total phenolic compounds, antioxidant activity, lipid peroxidation and the total concentration of minerals (Mn, Fe, Cu, Zn, V, Cr, Co, Ni, As, Cd …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 9, Issue 3, 2020 · pp. 28–34 Read article
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The Effect of Sonication Time on Alumina Nanofluids with Paradoxical Behavior
Abstract: Nanofluids can be considered to be the next-generation heat transfer fluids as they offer exciting new possibilities to enhance heat transfer performance compared to pure liquids. Heat transfer enhancement using nanofluids have been reported in literature pertinent to thermal conductivity under the static conditions, convective heat transfer and phase change heat transfer. Except for the studies from the first category where the nanofluids exhibited much higher thermal conductivities than those …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 16, Issue 3, 2014 · pp. 31–40 Read article
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Gossypetin Inhibits ROS Generation in HeLa and HepG2 Cell Lines
Abstract: Antioxidants are known for their ability to neutralize the reactive oxygen species present within the living system. These antioxidants are mainly secondary metabolites present in plant products and are generally known as nutraceuticals or bioactive compounds. Antioxidant can be categorized into many categories based upon their structure and activities like flavonoids, anthrocyanins and carotenoids. Flavonoids are heterogeneous polyphenolic compounds having beneficiary effect on human body and are also known to …
Published in Research and Reviews: A Journal of Toxicology · Vol. 7, Issue 1, 2017 · pp. 25–31 Read article
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Effect of Nano Metal Oxide Loading Rates on Polymer-Nano Metal Oxide Nanocomposites
Abstract: Many industries, such as those in the fields of medicine, textiles, cosmetics, agriculture, optics, food packaging, optoelectronics, semiconductors, aerospace, building materials, and catalysis, utilise nanoparticles and nanocomposites in a variety of applications. A unique class of materials, polymeric nanocomposites outperform their microparticle counterparts by fusing organic polymers with inorganic nanoparticles. Consequently, they ought to advance the field of engineering applications. The presence of inorganic nanoparticles can significantly alter the properties …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 14, Issue 1, 2024 · pp. 1–12 Read article
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Electronics and Communication Design of an AI-Powered Smart Chair for Real-Time Multilingual Interaction
Abstract: Revolutionizing the passive listening experience, a smart chair designed for presentation attendees goes far beyond mere cushioning, dynamically adapting to individual posture and offering ergonomic support to combat fatigue during lengthy sessions. Equipped with integrated sensors, these intelligent seats can subtly prompt listeners to adjust their position for optimal comfort and focus, sometimes even providing gentle haptic feedback for key takeaways or to signal important transitions in the presentation. Furthermore, …
Published in Recent Trends in Electronics Communication Systems · Vol. 12, Issue 3, 2025 · pp. 16–29 Read article