555 research outputs found
Morphological and Syntactic Meaning: An Interactive Crossword Puzzle Approach
This research involved the use of word distributions
and morphological knowledge by speakers of Arabic learning English
connected different allomorphs in order to realize how the
morphology and syntax of English gives meaning through using
interactive crossword puzzles (ICP). Fifteen chapters covered with a
class of nine learners over an academic year of an intensive English
program were reviewed using the ICP. Learners were questioned
about how the use of this gaming element enhanced and motivated
their learning of English. The findings were positive indicating a
successful implementation of ICP both at creational and user levels.
This indicated a positive role technology had when learning and
teaching English through adopting an interactive gaming element for
learning English
The Effects of Ethanolic Leaf Extract of Commiphora africana (Burseraceae) on Lipid Profile in Rats
Hydrogeological map of Kabo Sheet 80NW topographical sheet 1:50,000
A hydro geological mapping of the Federal Surveys of Nigeria, Kabo Sheet 80 NW, on scale 1:50,000 were made with areal coverage of 729Km2 on the Crystalline Basement Complex, and the hydrogeoogical maps produced are maps of depth to the water table and maps of configuration peak of dry season and wet season, for 2 consecutive years. Hydrogeological cross-section, and hydraulic gradient was also determined as 0.015m. These configuration maps show depth of water and direction of groundwater flow and the constructed hydro geological maps of water tables show a correspondence between the water table contours and topographical contours; as well as revealed the effluent nature of the river system in the study area. Also hydrograph analysis of 2 (Km) gauging station at River Challawa was conducted for only 2 hydro years 1971/72, thus a total runoff average of 216,240,192m3/a and mean base flow of 114,455m3/a, and surface runoff mean of 159, 228,113m3/a, also mean base flow coefficient of base 0.0182, and mean coefficient of surface runoff 0.062m were determined for the area.
Key words: Hydro geological maps, Configurations maps, Hydro years, Base flow, Coefficient of base flow and Hydraulic gradient
Analysis of Heavy Metals Contaminations in Kano River (Upstream, Midstream and Downstream)
The study analyses effects of heavy metals levels of heavy metals concentrations of Pb, Cd, Zn, CR , Ni, Co in the Kano River Drainage basin from its headstream, midstream up to the downstream and in both surface and groundwater and the water is used for may purpose including water supply, fishing and agriculture mainly irrigation. Based on above pH average water in the study area can be interpreted as slightly alkaline and still within permissible limits of all the three standards/guidelines. EC with above average also shows that all the water their values falls within the three guidelines. Samples from both surface and groundwater in the studied area have ranges and means of: Co ranges from 0.11-21.24 ppb and average of 2.26 ppb , Ni ranges from 0.26 - 37.01 ppb and average of 7.37 ppb , Cu ranges from 0.17 - 640.93 ppb and average of 37.62 ppb, Zn ranges from 15 - 408 ppb and average of 115.03 ppb, As ranges from 0.09 - 2.31ppb and average of 0.62 ppb ,Pb ranges from 0.16 - 834.38 ppb and average of 29.82 ppb , Cr ranges from 0.16 - 5557.35 ppb and average of 419.58 ppb ,Cd ranges from 0.04 - 1.64 ppb and average of 0.21 ppb. EC. It is therefore recommended that concentrations level in crops grown with these waters needs to be investigated. Again it is confirmed that probably this may be one of the reasons for the drop in fish catch from midstream up to the downstream especially in area like Wudil which is known for its fishing, Gadar Ringim and even Tarabu town in Kirikasamma local government of Jigawa state. Keywords: Levels, Concentrations, Heavy metals, Surface water, and Midstream
Phytochemical analysis, analgesic and antipyretic properties of ethanolic leaf extract of Vernonia amygdalina Del.
Introduction: Vernonia amygdalina Del. has been traditionally used in relieving pain and inflammatory conditions as well as in treatment of feverish conditions by local people of the North-east Nigeria. Consequently this study aims at evaluating the phytochemical content, antipyretic and analgesic properties of V. amygdalina (biter leaf).Methods: The leaf of V. amygdalina was soxhlet extracted with ethanol and sequentially partitioned using solvent of different polarities. Phytochemical test was conducted to ascertain the secondary metabolites present in the extract using standard procedures. Acute toxicity (LD50) of the extract on laboratory rats was estimated by following protocols of Lorke. The antinociceptive activity of the ethanolic extract was also evaluated using acetic acid induced pain and hot plate method.Results: The results revealed the presence of tannins, phlobatannins, saponins, carbohydrates, cardioactive glycoside, flavonoids, alkaloids, steroids and terpenes. Anthraquinones were absent in the extract. The intraperitoneal LD50 was found to be 3721 mg/kg. On administration of 5000 mg/kg dose of the extract via oral route, there was no dead. The extract demonstrated significant antinociceptive activities as 36.0 ± 0.81, 43.8 ± 0.11 and 52.8±0.37 (Mean number of writhings) respectively for the doses 600, 400 and 200 mg/kg i.p.) as compared to the control (60.0 ± 0.11). High dose of 400 mg/kg significantly reduced rectal temperature (P < 0.05)Conclusion: These results demonstrated the medicinal potentiality of V. amygdalina and might be used as analgesic, and antipyretic agent. Phytochemicals found in such as flavonoids, tannins, alkaloids and steroids seem to be implicated in having such pharmacological activities
Epidemiological Interactions between Urogenital and Intestinal Human Schistosomiasis in the Context of Praziquantel Treatment across Three West African Countries
© 2015 Knowles et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article
Influence of inorganic fertilizer and spacing on growth and yield of two maize cultivars under Striga hermonthica infestation
Field experiment was conducted during the 2013 rainy season at Lapai and Mokwa in the Southern Guinea savanna of Nigeria, to evaluate the reactions of maize cultivars to nitrogen and intra-row spacing in a Striga hermonthica infested field. The treatments consisted of two maize cultivar (Local (kabako) and SAMMAZ 16), four levels of nitrogen fertilizer (0, 60, 120 and 180 kg N ha-1) and three intra-row spacing (20, 25 and 30 cm). The treatments were factorial combined and laid out in a Randomized Complete Block Design and replicated three times. Results revealed that plant height, number of leaves and days to 50 % anthesis of Local maize cultivars responded significantly with 60 kg N ha-1 at 9 WAS. 180 kg N ha-1 and 25cm intra-row spacing in combination with SAMMAZ 16 recorded the highest grain yield, 100 grain weight, stover yield, shelling percentage and harvest index. The local cultivars supported greater Striga infestation at 20 cm intra-row spacing and 180 kg N ha-1 was found remarkable for Striga suppression at 9 WAS in this study. From these findings, it could be concluded that the above combinations can be used for effective management of Striga hermonthica for optimum yield of maize.Keywords: spacing, maize cultivar, nitrogen fertilizer, Striga hermonthic
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