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470 articles for “Doses”
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COMPOSITION, RADIATION DOSE AND TEMPERATURE DEPENDENT DEGRADATION STUDIES OF POLYAMIDE 6 HOMOPOLYMER AND COPOLYMERS
Abstract: Composition radiation dose temperature dependency on free radicals generated in PA6, PA6/ PA12 copolymer, has been investigated by electron spin resonance (ESR) and FTIR techniques. ESR spectra of -irradiated PA6 has shown complex shaped and number of hyperfine lines is observed to be in between 6-10. This complex spectrum is assigned to macro-radicals of the type ~CH2CHCH2~, which in principle has to give a ten line ESR spectrum. However, due …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 1, 2018 · pp. 25–37 Read article
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Prevention of Breakthrough Varicella and Outbreaks by Two Dose Vaccination
Abstract: Among viral infections, one of the known human herpes viruses, Varicella-Zoster Virus (VZV) causes latent infection. The VZV causes two distinct diseases, varicella (chickenpox) and after latency shingles (herpes zoster). Although safe and effective vaccine is available, it is not widely used in many geographic areas mainly because of non-inclusion in the routine immunization schedule. Over the years, many countries have reported more than 90% reduction in number of varicella …
Published in Research and Reviews : A Journal of Immunology · Vol. 4, Issue 3, 2014 · pp. 24–28 Read article
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Effects of High Dose of Ethanolic Extract of Luffa cylindrica on Rat Uterus
Abstract: The objective of the present study was to investigate the various aspects of uterus and uterine histology in cyclic female albino rats to gain insights into the possible mechanism of antifertility effect of the ethanolic extract of Luffa cylindrica. High dose level (0.5 mg/ml) of ethanoloic leaf extract of Luffa cylindrica was administered to determine the effect of the extract on uterine histology of female albino rats. The high dose …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 3, Issue 1, 2012 · pp. 20–28 Read article
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Quantifying Hybrid Head Cabbage (Brassica oleraceae var. capitatal) Yields in Response to Varied Vermicompost Dose
Abstract: A field experiment was conducted with the objective of investigating the promotive role of varied Vermicompost doses in filling the Yield gaps among selected of Head cabbage (Brassica oleraceae var. capitatal) varieties. The experiment was carried out during November 2018 to April, 2019. Four vermicompost doses;0, 1.5, 2 and2.5t/ha were applied over the hybrid head cabbage varieties and laid out in a 3x4 factorial Randomized Complete Block Design (RCBD) with …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 9, Issue 3, 2020 · pp. 1–9 Read article
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Oral Capsaicin Ingestion: A Brief Update Dose, Tolerance and Side Effects
Abstract: Capsaicin has attracted increasing scientific attention in recent years relative to its potential pain relief properties, with oral ingestion providing a useful mode of capsaicin delivery. Yet, despite many exciting new findings in this area, there appears to be significant discrepancy across current research so far about an established oral dosage for use in scientific trials. In an attempt improve future research in this area, this commentary provides a short …
Published in Research & Reviews : Journal of Herbal Science · Vol. 5, Issue 2, 2016 · pp. 1–5 Read article
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Effect of Different Doses of Phosphorus on the Growth and Yield of Mung Bean (Vigna radiata L.)
Abstract: Phosphatic fertilizers play a vital role in enhancing mung bean production by not only improving crop yield but also increasing the quality of the produce. A field trial was done at the Nepal Polytechnic Institute research field to determine the effect of different levels of phosphorus on yield of Mung bean at Bharatpur, Chitwan during the summer season 2024. The test was carried out as per Randomized Complete Block Design …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 14, Issue 2, 2025 · pp. 1–7 Read article
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Simultaneous Estimation of Prazosin and Polythiazide in Bulk and Fixed Dose Combination (Tablets) by RP-HPLC
Abstract: Objective:A New method was established for simultaneous estimation of Prazosin and Polythiazide by RP-HPLC method. Methods:Chromatographic separations were carried using HPLC equipped with Auto Sampler and PDA Detector, Discovery (150 x 46 mm, 5mm) column with a mobile phase composition of Buffer and ACN: taken in the ratio 60:40 (60:40 v/v) have been delivered at a flow rate of 1ml/min and the detection was carried out using waters HPLC auto …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 66–74 Read article
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Toxicology-Focused Development and Validation of an RP-HPLC Technique for Quantifying Bempefoic Acid and Rosuvastatin in a Fixed-Dose Combination
Abstract: A straightforward, precise method was developed to simultaneously assess Bempedoic acid and Rosuvastatin in both bulk and tablet forms. Utilizing a DIKMA Spursil C18 column (4.6 mm x 250 mm, 3.0 μm), chromatography was conducted with a mobile phase comprising 30% phosphate buffer and 70% acetonitrile, flowing at 1 ml/min. Operating at ambient temperature, the optimized wavelength for detection was set at 240 nm, revealing retention times of 4.418 min …
Published in Research and Reviews: A Journal of Toxicology · Vol. 14, Issue 2, 2024 · pp. 1–9 Read article
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Dosing Control of Urea in Selective Catalytic Reduction (SCR) to enhance the reduction of Nitrogen oxides
Abstract: Selective Catalytic Reduction (SCR) is an effective aftertreatment technique designed to comply with rigorous emission criteria established by global regulatory authorities for the elimination of nitrogen oxides from exhaust streams. Since NOx and ammonia reagents are poisonous and an excess of either is therefore very undesired, it poses an intriguing control problem, particularly at high conversion. SCR systems must reduce NOx emissions as much as possible and reduce the possibility …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 110–120 Read article
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Detection of Radioactive Material Out of Regulatory Control: A Radiation Dose Survey of a University Environs in Rivers State, Nigeria
Abstract: This research investigates radiation levels at refuse dump sites and laboratories within the University of Port Harcourt, Nigeria environs and assesses the associated risks to human health and the environment. The study utilizes two radiation detection instruments namely the Personal Radiation Detector and the Radioisotope Identifier Device. The PRD offers real-time detection and spectroscopic analysis of gamma and neutron radiation, while the RID combines gamma and neutron radiation detection with …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–11 Read article
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Investigation of the Effects of Solpawa SBR-X TM Doses on Total Petroleum Hydrocarbon in Loam Soil at Different Depths
Abstract: Laboratory trials of environmental remediation products bring the hope of inventing such products to reality for many of today’s intractable environmental pollution conditions, paving the way for the field trials and subsequent large-scale field application. This laboratory study was conducted as the first phase of a 2-tiered adaptive trials of Solpawa® Bioremediation System (Solpawa-SBX) funded by the Nigerian Content Development and Monitoring Board (NCDMB). The study investigated the effectiveness of …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 64–72 Read article
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The Acute Toxicological Effects of Paraquat on Male Reproductive Hormones (Testosterone, Luteinizing Hormone and Follicle Stimulating Hormone) of Intoxicated Rats
Abstract: Paraquat (PQ) a contact herbicide widely used to control weeds in agricultural, recreational, or industrial sites has been linked in various studies as a contributory agent to high male infertility in regions of most use. The current study investigated the acute toxicity effect of PQ administered intraperitoneal (ip.) on reproductive hormones; luteinizing hormone (LH), follicle stimulating hormone (FSH) and testosterone (Te) of male rats. 24 rats, grouped four per group …
Published in Research and Reviews: A Journal of Toxicology · Vol. 5, Issue 3, 2015 · pp. 13–16 Read article
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Analysis of Virechana Karma with Trivritta Avaleha: A Retrospective Study
Abstract: The Virechana (therapeutic purgation) is one of the popular Panchakarma procedures which has been performed to maintain the health and treat various ailments such as constipation, skin diseases, menstrual disorders etc. The ancient classical texts have described the procedure of Virechana Karma in detail, but, it becomes practically difficult to perform the Virechana Karma as the drugs mentioned for Virechana Karma in the classical texts are either not available in …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 10, Issue 3, 2021 · pp. 1–6 Read article
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Role of Radiation Therapy in the Management of Mycosis Fungoides
Abstract: Cutaneous T-cell lymphoma (CTCL) consists of spectrum of diseases of which Mycosis Fungoides and Sézary's syndrome are most common. Mycosis Fungoides (MF) is a low-grade, chronic lymphoproliferative disorder affecting skin caused by abnormal proliferation of CD4 + T-cells. The incidence of MF is showing an increasing trend all over the world. Also, it is seen twice as often in males as in females (2:1) and mostly it occurs after fourth …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 1, Issue 1, 2012 · pp. 6–15 Read article
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Reliability-Aware Mathematical Model for Radiation-Hardened Satellite Communication Systems
Abstract: Satellite communication systems operate in radiation environments in which total ionizing dose (TID), displacement damage, and single-event effects (SEE) can progressively degrade electronic, optoelectronic, and communication components and can ultimately reduce link availability and mission reliability. This paper develops a Reliability-Aware Radiation-Hardened Satellite Communication Model (R-RHSCM) that mathematically couples the orbital radiation environment, accumulated radiation dose, component degradation, communication-link performance, single-event failure probability, redundancy, thermal effects, and adaptive mitigation. The …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 15, Issue 2, 2026 Read article
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Radio-Assay of Plant Samples at the Proposed Nuclear Reactor Site in Geregu, North-Central Nigeria
Abstract: Radio-assay of plant samples at the Geregu site, North-Central Nigeria, was evaluated to determine the radiological burden on the environment. Plant samples were collected from ten different locations on the site and the concentrations were measured using gamma spectroscopy. Radiological equivalent dose was estimated using standard analytical methods. The mean value for the external outdoor absorbed gamma dose rates due to terrestrial γ-rays from the nuclides Ra-226, Th-232 and K-40 …
Published in Journal of Nuclear Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 6–13 Read article
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Preliminary Phytochemical and Acute Toxicity Studies of Different Extracts of Guiera Senegalensis
Abstract: The leaf of Guiera senegalensis is used in the management of many diseases in Nigeria and many African countries, but the medial lethal doses (LD50) of its different extracts are not widely investigated. To evaluate the phytochemical constituents and acute toxicity indexes of aqueous, hexane, dichloromethane and methanol leaf extracts of G. senegalensis, basic phytochemical screening methods were applied. While up and down procedure and Lorke’s method was used for …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 6, Issue 3, 2019 · pp. 11–16 Read article
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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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Worker Radiation Exposure during Transportation of Irradiated LEU Targets in a Typical MTR Reactor
Abstract: The paper estimates the radiation dose exposure for the worker in the second Egyptian research reactor ETRR-2 during the process of transporting the irradiated low enriched uranium LEU plates from the core to the hot cell. The aim of estimating the radiation doses distribution is determining the exposure dose for the worker during the transportation process as a safety point of view. In order to estimate irradiated LEU plates radiation …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 48–51 Read article
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Phytochemical Screening and Anticonvulsant Activity of Sebastiania chamaelae
Abstract: Epilepsy is one of the most common serious neurological conditions. Here, phytochemical screening and anticonvulsant activity of Sebastiania chamaelea evaluated. The present study was undertaken to screen anticonvulsant activity of Sebestiana chamelea. The drug was administered in the form of hydro-alcoholic extract orally and the effect was noted at two doses. The drug was found quite safe by the oral route as animals tolerated drug up to the dose of …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 6, Issue 3, 2019 · pp. 23–28 Read article