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Wyszukujesz frazę "Stevens, C.O." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Utilization potentials of Moringa oleifera in Nigeria: a preliminary assessment
Autorzy:
Stevens, C.O.
Ugese, F.D.
Baiyeri, K.P.
Powiązania:
https://bibliotekanauki.pl/articles/11379.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
A survey on the utilization potentials of Moringa oleifera in Nigeria was conducted in 2011. The survey involved 14 states (including the Federal Capital Territory) across the five agroecological zones. The 14 States were Borno, Kano, Adamawa, Kebbi, Kaduna, Niger, Nassarawa, Abuja (F.C.T), Kogi, Benue, Kwara, Oyo, Enugu and Anambra. A semi-structured questionnaire and field visits were adopted in this study while a multistage random sampling technique was used in selecting the respondents. The survey found more than 25 local names of Moringa oleifera in Nigeria. Widespread utilization of Moringa as food was observed with its use as vegetable in soup, as salad or herbal tea having particularly high scores. There was low awareness of Moringa oleifera as a domestic cleansing agent although about 30% of respondents used it in domestic water clarification. The species has high ethno-medicinal value, addressing close to 20 conditions including typhoid and malaria fever (78.7%), ear infection (71.8%), eye infection (66.9%), lowering of blood sugar (diabetes mellitus) (65.2%) and blood pressure (64.7%). It is evident that this important species is still underutilized in Nigeria and more efforts are required for a fuller exploitation of its rich potentials.
Źródło:
International Letters of Natural Sciences; 2015, 40
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new mammal from the Turonian–Campanian (Upper Cretaceous) Galula Formation, southwestern Tanzania
Autorzy:
O’Connor, P.M.
Krause, D.W.
Stevens, N.J.
Groenke, J.R.
MacPhee, R.D.E.
Kalthoff, D.C.
Roberts, E.M.
Powiązania:
https://bibliotekanauki.pl/articles/20223.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
We here establish a new mammaliaform genus and species, Galulatherium jenkinsi (Mammalia), from the Upper Cretaceous Galula Formation in the Rukwa Rift Basin of southwestern Tanzania. This represents the first named taxon of a mammaliaform from the entire Late Cretaceous of continental Afro-Arabia, an interval of 34 million years. Preliminary study of the holotypic and only known specimen (a partial dentary) resulted in tentative assignation to the Gondwanatheria, a poorly known, enigmatic clade of Late Cretaceous–Paleogene Gondwanan mammals (Krause et al. 2003). The application of advanced imaging (μCT) and visualization techniques permits a more detailed understanding of key anatomical features of the new taxon. It reveals that the lower dentition consisted of a large, procumbent lower incisor and four cheek teeth, all of which were evergrowing (hypselodont). Importantly, all of the teeth appear devoid of enamel. Comparisons conducted with a range of Mesozoic and selected Cenozoic mammaliaform groups document a number of features (e.g., columnar, enamel-less and evergrowing teeth, with relatively simple occlusal morphology) expressed in Galulatherium that are reminiscent of several distantly related groups, making taxonomic assignment difficult at this time. Herein we retain the provisional referral of Galulatherium (RRBP 02067) to Gondwanatheria; it is most similar to sudamericids such as Lavanify and Bharratherium from the Late Cretaceous of Madagascar and India, respectively, in exhibiting relatively simple, high-crowned, columnar cheek teeth. Other features (e.g., enamel-less dentition) are shared with disparate forms such as the Late Jurassic Fruitafossor and toothed xenarthrans (e.g., sloths), here attributed to convergence. Revised analyses of the depositional context for the holotype place it as having lived sometime between the late Turonian and latest Campanian (roughly 91–72 million years ago). This enhanced geochronological context helps to refine the palaeobiogeographical significance of Galulatherium among Cretaceous mammals in general and those from Gondwanan landmasses specifically.
Źródło:
Acta Palaeontologica Polonica; 2019, 64, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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