Autor: Ikechukwu, E.O. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of climatic conditions on the biting density and relative abundance of Simulium damnosum complex in a rural Nigerian farm settlement
Autorzy:: Eyo, J.F.
Ikechukwu, E.O.
Ubachukwa, P.O.
Ivoke, N.
Ekeh, F.N.
Powiązania:: https://bibliotekanauki.pl/articles/49225.pdf
Data publikacji:: 2014
Wydawca:: Instytut Medycyny Wsi
Źródło:: Annals of Agricultural and Environmental Medicine; 2014, 21, 4
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Phytochemical screening and in vitro antimicrobial properties of Annona muricata extracts against certain human pathogens
Autorzy:: Oluyege, J.O.
Orjiakor, Paul Ikechukwu
Badejo, O.E.
Powiązania:: https://bibliotekanauki.pl/articles/135020.pdf
Data publikacji:: 2019
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: Annona muricata
pathogens
bacteria
fungi
antibiotics
medicinal plants
Opis:: All over the world, the use of medicinal plants is gaining more acceptability due to the possibility of discovering novel drugs from them and solving the problem of antimicrobial resistance associated with conventional antibiotics. The phytochemical composition and antimicrobial properties of crude extracts of the leaves, stems, and bark of Annona muricata were evaluated on Escherichia coli, Staphylococcus aureus, and Salmonella typimurium, while the antifungal properties were evaluated against Candida albicans and Candida tropicalis. The Agar well method was used for the study. At concentrations of 150 mg/ml and 300 mg/ml, inhibitory effects were observed on E. coli and S. aureus, with a visible zone of inhibition ranging from 15 mm to 21 mm respectively, and with respect to N- hexane, an antimicrobial activity range of 5 mm to 20 mm, for the leaf extract, which shows effective antimicrobial action against E. coli and S. aureus. Hot water extracts were observed to possess more bioactive compounds compared to organic solvent extracts, and exhibit higher ranges of activity against the tested bacterial species. All extracts exhibited low anti-fungal activity in the range of 8 mm to 15 mm. The phytochemical screening of the extracts of different parts of A. muricata revealed the presence of secondary metabolites such as tannins, alkaloids, saponins, flavonoids, steroids, and cardiac glycosides. The antimicrobial activity of the extracts was compared with a standard antibiotic, ketoconazole, and with ampicillin, which served as the controls). The results showed that A. muricata can be used as an anti-bacterial substance, since it shows broad spectrum activity against a range of bacteria responsible for the most common bacterial illnesses. Further research will be necessary to ascertain its full spectrum of efficacy.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2019, 60 (132); 203-209
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Geospatial and geostatistical analyses of particulate matter (PM10) concentrations in Imo State, Nigeria
Autorzy:: Iheanyichukwu, O.A.
Chizoruo, I.F.
Chukwuemeka, N.P.
Ikechukwu, A.J.
Kenechukwu, E.C.
Powiązania:: https://bibliotekanauki.pl/articles/11174.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:: Geospatial and geostatistical analysis of particulate matter (PM10) variation in Imo State, Nigeria was carried out. The objectives of the study were to determine and analyze the variation in concentration of ambient PM10 level in Imo State, Nigeria. Air quality sampling was conducted within November 2014 and June 2015, in wet and dry seasons three times daily using Haze Dust Particulate Monitor (10μm). The mean concentration of PM10 level observed in the study varied from 5.22 - 6.63mg/m3 in wet season and 5.80 - 8.38 mg/m3 in dry season. Coefficient of variation (CV %) revealed that the variability of PM10 level ranged between little and moderate variations in both wet and dry season. Analysis of variance (ANOVA p<0.05) showed statistically significant variation in the mean PM10 level in the study locations. Box and Whisker plots confirmed variation of PM10 in the morning, afternoon and evening. The GIS plots revealed the spatial attributes of the air pollutant in the study locations. Time series plots indicate that the air pollutants fluctuated throughout the study duration. The Wind Rose suggests that the prevailing wind speed and wind directions were responsible for the dispersal migration of the air pollutant in the study area. The highest seasonal mean values were observed in Egbema and Okigwe area in both dry and wet season. The seasonal mean values recorded in the study exceeded the Nigerian National Ambient Air Quality Standards. This calls for urgent response to prevent further air quality deterioration and its negative effects on man and the environment.
Źródło:: International Letters of Natural Sciences; 2016, 57
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Ikechukwu, E.O." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język