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195 articles for “Preliminaries”
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Preliminary Study on the Production of Activated Carbon from Moringa Oleifera Seed Shells by Thermal Activation Method
Abstract: Activated carbon was prepared from Moringa oleifera seed shells by thermal activation method. The carbonization and activation temperatures were 500, 600 and 700°C respectively, at 13 min for each process after pre-carbonization for 25 min. The pH of the activated carbon produced were 9.55 at 500°C, 9.78 at 600°C and 9.97 at 700°C while the yield decreased with increase in temperature as follows: 30.40% at 500°C, 29.35% at 600°C and …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 6, Issue 1, 2015 · pp. 13–16 Read article
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Preliminary Studies of the Effects of Some Extraction Methods/Procedures on the Yield and Physicochemical Properties of African Breadfruit Seed Oil (Treculia africana)
Abstract: African breadfruit seed oil (ABFSO) was extracted using traditional and solvent extraction methods. The procedure for the solvent extraction was varied as different solvent including; n-hexane, methanol, xylene and acetone were used in the extraction. The least oil yield (3.6%) was obtained from the traditional method while the highest was obtained using n-hexane in solvent extraction. The oil extracts which includes the traditional extract (TDE), n-hexane extract (N-HE), methanol extract …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 6, Issue 2, 2015 · pp. 23–30 Read article
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A Preliminary Evaluation of Renewable Energy Technology Financing Options for Nigeria
Abstract: Renewable energy technologies (RETs) ought to play a complementary role to conventional energy technologies as these have the potential to meet up energy needs in rural areas with regards to access, availability and affordability. Despite these potentials, the current challenge is how to finance their deployment and services. Since long-term growth in the market for RETs is going to be determined by social and economic development that is occurring in …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 5, Issue 1, 2014 · pp. 1–5 Read article
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Preliminary design assessment of heavy water purification columns through shortcut calculations including hydraulic and mass transfer characteristics
Abstract: Heavy water having deuterium content of 99.9% and more is used as the moderator and the coolant in pressurized heavy water nuclear reactors (PHWRs). This purity is maintained by vacuum distillation in packed columns. This work analyses the effect of packing type on preliminary column design based on certain user-defined specifications, with a focus on mass transfer and hydraulic characteristics of the column. Geometrical characteristics of commercial metallic packing materials …
Published in Journal of Water Pollution & Purification Research · Vol. 5, Issue 3, 2018 · pp. 20–29 Read article
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Lasiosiphon glaucus: Preliminary Phytochemical Screening, Antioxidant Activity and Anti-inflammatory Activity of Ethnomedicinal Plant
Abstract: An important ethnobotanical medicinal plant Lasiosiphon glaucus was evaluated for its antioxidant and anti-inflammatory potentials. The plant showed significant antioxidant activity as evaluated by DPPH free radical scavenging activity (IC50 100 µg/ml) and ABTS radical scavenging activity (IC50 96 µg/ml) and Total antioxidant activity of 33 mg/g ascorbic acid equivalent. The plant has a total phenol content of 8.7 mg/g gallic acid equivalent. It is evident form HRBC membrane destabilisation …
Published in Research & Reviews : Journal of Herbal Science · Vol. 7, Issue 1, 2018 · pp. 1–7 Read article
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Preliminary Phytochemical Analysis and Haemolytic Activity Assay of Tuber Extract of Ruellia tuberosa L.
Abstract: Presence of certain chemical compounds is responsible for medicinal properties of the plant. In the present study, the various biochemical tests were conducted to examine the presence of various phytochemicals in the methanolic, petroleum ether and chloroform tuber extracts of Ruellia tuberosa L. Also, the extracts were subjected to the in vitro haemolytic activity assay. The tests confirmed the presence of carbohydrates, alkaloids, tannins, terpenoids and flavanoids in all the …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 7, Issue 3, 2017 · pp. 23–27 Read article
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Preliminary Phytochemical Screening from Different Extracts of Bryonopsis laciniosa Fruits
Abstract: Plants derived bioactive compounds have been the focus of recent research due to their health promoting effects. There is continuous and urgent need to discover new antimicrobial, antioxidant and anticancer compounds with diverse chemical structures and novel mechanism of action because there has been an alarming increase in the incidence of new and re-emerging diseases. The present investigation was carried out to assess the qualitative phytochemical analysis of Bryonopsis laciniosa …
Published in Research & Reviews : Journal of Herbal Science · Vol. 5, Issue 2, 2016 · pp. 25–29 Read article
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Evidence of Phthalates in Plastic Packaged Vegetable Oil through GCMS: A Preliminary Assessment Study
Abstract: Foods are the major sources of exposure to contaminants; the contamination of foodstuffs with undesirable substances migrated from the packaging materials has received more attention in recent years. The common food-packaging materials are considered as contaminant sources for a variety of substances. Plastic food packages may contain additives used to minimize degradation during processing, to facilitate processing, and to increase stability during storage. Additives, such as antioxidants, dyes, pigments, antifogging …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 4, Issue 1, 2015 · pp. 43–46 Read article
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Preliminary Studies on the Bacteriological and Physicochemical Qualities of Selected Surface Drinking Water in Selected Rural Communities of Ondo North Senatorial District, Ondo State
Abstract: The present study evaluated the quality of surface water samples used for drinking in selected communities of Ondo State Northern Senatorial region. The physiochemical parameters analyzed range were; pH, (7.2–7.8), temperature (22.8–29.3°C) conductivity (59–118 μs/cm), total dissolved solids (38–147 mg/L), total suspended solids (74–153 mg/L), total hardness (11.3–36.4 mg/L), biological oxygen demand (3.8–10.1 mg/L), nitrate (2.94–19.34 mg/L), phosphate (0.54–1.65 mg/L). The results were compared with WHO standards in which they …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 7, Issue 3, 2018 · pp. 20–27 Read article
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Antibacterial Activity and Preliminary Phytochemical Screening of the Extracts of the Bark of Moringa oleifera
Abstract: Ethyl acetate, acetone, methanol and aqueous extracts of the bark Moringa oleifera were screened against the enteric pathogens isolates namely, Esherichia coli, Shigella sonnei and Salmonella enteritis. All the extracts other than aqueous extract showed antimicrobial activity with the methanol extract having the percentage of activity. Preliminary phytochemical screening revealed the presence of and tannins in the methanol extract. Keywords: Moringa oleifera, bark, antimicrobial activity, flavones, tannins
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 1, Issue 2, 2014 · pp. 1–4 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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Youthful Students’ Perception of The Nursing Profession: A Preliminary Single-group Research
Abstract: Aim: This study had four objectives: (1) examine how adolescents perceive nursing before and after organized teaching programs; (2) examine how adolescents perceive nursing after structured teaching programs; (3) compare pre-test and post-test results to assess the efficacy of a structured teaching program; (4) relate the mean improvement in nursing image to particular demographic factors. Background: This study assists in identifying potential areas for improvement or any potential interventions to …
Published in International Journal of Community Health Nursing And Practices · Vol. 1, Issue 2, 2023 Read article
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Preliminary Checklist of Acridoidea (Orthoptera) of Patna District, Bihar (India)
Abstract: The family Acrididae, which falls under the order Orthoptera includes locusts and grasshoppers. Insects are found all over the globe. In general, locusts refer to larger acridids, while smaller species are known as grasshoppers. The comprehensive study indicates that there are 19 species from various families, which include 12 species from Acrididae, 4 Catantopidae, and 3 from Pyrgomorphidae. A thorough investigation was carried out across different crops and habitats to …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 14, Issue 3, 2024 · pp. 67–71 Read article
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A Preliminary Study on Biopolymerised Concrete with Sawdust as an Admixture
Abstract: In this study bio polymer obtained from Tapioca starch and sawdust in fine form were assessed for the use as partial replacement of cement materials for an application in lightweight concrete. Physical and chemical characteristics of bio polymer and sawdust were analyzed initially. Properties of concrete that has been investigated were compressive, tensile and flexural strength. The cement has been replaced by bio polymer and saw dust accordingly in the …
Published in Journal of Structural Engineering and Management · Vol. 1, Issue 2, 2014 · pp. 1–4 Read article
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Preliminary Investigation on Steel Slag: Production, Processing and Cementitious Properties
Abstract: Steel slag is glass-like by-product left over from the conversion of iron to steel in a basic oxygen furnace, or from the melting of scrap to make steel in an electric arc furnace. This paper reviews the production, processing, and cementitious properties of steel slag, and its use as a cementing component in different cementing systems. The chemical composition of raw ore and cooling of molten steel slag have a …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 17–22 Read article
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A Preliminary Study of Solar Bicycle using Crank-Lever Mechanism
Abstract: There are many types of bicycle in the world such as normal bicycle that people need topaddle for it to move and electricbicycle that can only be sufficient for an hour. Chain drive power transmission have some disadvantages will motivate the direct drive for bicycle. The idea of a solar bicycle without chain drive came in mind. The idea is to make thebicycle last longer and can be automatically recharge …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 19–24 Read article
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An Indian Corpus of Gestures for Nouns and Verbs: A Preliminary Study
Abstract: The study aimed to develop a corpus of comprehensive gestures for a set of nouns and verbs in the Indian context. The study was conducted in the following three phases. Phase 1: Gestural nouns and verbs were selected from the existing word lists. Phase 2: A set of 221 nouns and 122 verbs were enacted and recorded by a professional actor and a cameraman respectively. Phase 3: Two groups of …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 11, Issue 1, 2021 · pp. 18–32 Read article
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Qualitative assessment of the psychological and emotional responses of COVID-19 patients and the stigma they feel and face from the society prior and post math of their recovery: A preliminary study.
Abstract: Abstract:From the very beginning of the SARS-COV-2 pandemic, there has been an enormous and everlasting uncertainty among the people about how things will get back on track. This uncertainty along with the other contagious pandemic protocols like social distancing, quarantine, lockdown, job loss, financial crisis, stress, career anxieties, eviction from rooms and apartments and social stigma to the patients have contributed enormously the psychological pressures. This study aimed at estimating …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 12, Issue 3, 2022 · pp. 14–24 Read article
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Groundwater Contamination in Punjab Due to High Levels of Nitrate (NO3 - ) and Its Health Hazards: A Preliminary Report
Abstract: Punjab is facing a crisis due to high levels of heavy metals and nitrate concentration in groundwater of several districts of Punjab. The highest level of NO3 content of 2553 mg/l has been recorded in two villages of Patiala district. The concentration of NO3 in groundwater of seven districts of Punjab has been studied. The maximum content values range from 78.20 in Pathankot to 2553 mg/l in Patiala district, which …
Published in Research and Reviews: A Journal of Toxicology · Vol. 12, Issue 3, 2022 · pp. 18–26 Read article
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Preliminary Analytical Study of Parangipattai Rasayanam (PRM) – A Siddha Polyherbal Formulation
Abstract: Parangipattai Rasayanam is a purely herbal product used commonly for the management of Vaatha diseases (anti-inflammatory and analgesic activity), skin diseases, etc. The Parangipattai Rasayanam is an orally administrable pharmaceutical drug which is a combination of 28 ingredients namely Parangipattai (Smilax china, Linn), Kodiveli (Plumbago zeylanica), Amukaraa (Withania somnifera, Linn), Milagu (Piper nigrum, Linn), Thipili (Piper longum, Linn), Omam (Carum capticum benth and Hook), Kurosaaniomam (Hyoscyamus niger, Linn), etc. Lack …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 1, Issue 1, 2014 Read article