Publications

Found 28 results

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2009
Alexander RMN, Maloiy GMO, Ker RF, Jayes AS, Warui CN. "The role of tendon elasticity in the locomotion of the camel (Camelus dromedarius).". 2009. Abstract

Several ofthe distal leg muscles ofcamels have very short or even rudimentary muscle fibres. This makes it possible to calculate the elastic extensions of tendons that occur in running, from the leg positions observed in films. A series of experiments have been performed for this purpose on the dissected legs of a camel. The initial conclusions derived from them are modified in the light of estimates of the forces that act on the tendons, and of measurements of the elastic properties of one tendon. Evidence for movement at the intertarsal and tarso-metatarsal joints. and the corresponding joints of the fore leg, is examined. The importance of the various tendons as elastic energy stores in running is assessed.

2000
Mwangi DK, Warui CN. "Stereological analysis of the cerebellum of 24-day old rats with propylthiouracil-induced hypothyroidism.". 2000. Abstract

Objective: To investigate the structural parameters of the developing cerebellum in propylthiouracil (PTU)-induced hypothyroidism during pre and postnatal stages in 24 day old rat pups. Method: Hypothyroidism was induced by feeding the breeding dams with PTU in water before and during copulation, pregnancy and lactation and the pups through the dams and ingestion in water. The number of control and treated dams and pups was five for each dam group and twelve and thirteen for pups respectively. The whole cerebellum was dissected out from the pups and processed routinely for histological examination and morphometric analysis. The total volumes of cerebellum, intracerebellar nuclei and cerebellar compartments were estimated by Cavalieri method. The mean numerical densities of neurones and neuroglia in the intracerebellar nuclei and Purkinje, granule and combined stellate and basket cells in cerebellar cortex were estimated using optical disector and the total numbers calculated as the product of the respective numerical densities and reference volumes. Results: The treated dams and pups had relatively lower mean body weights and etraiodothyronine (T4) serum concentrations. The serum Triiodothyronine (T3) was normal and lower in the treated dams and pups respectively. The differences in the respective body weights and dam T4 concentration in treated dams and pups were significant (p<0.05) compared to the control. Morphometric results showed that the mean volumes of cerebellum, intracerebellar nuclei, white matter, internal granular layer, molecular layer and the cerebellar cortex were lower and the differences between the values for each parameter were significant (p<0.05) in the treated pups compared to the control. The mean numerical densities of neurones and neuroglia in the intracerebellar nuclei (Nvne; Nvgl) and the combined stellate and basket cells (Nvsb) in the cerebellar cortex were relatively higher and the mean values for the respective numerical densitys of Purkinje and granule cells (Nvpu; Nvgr) were relatively lower in the treated pups compared to the control. On the other hand the treated pups had relatively lower values for the respective total numbers of neurons (Nne), neuroglia (Ngl), Purkinje (Npu), granule (Ngr) and the combined stellate and basket (Nsb) cells compared to the control. The differences between the respective values for Nvne, Nvsb, Npu, and Ngr, were significant (p<0.05). Conclusion: These results show that rat pups with PTU-induced hypothyroidism have relatively lower mean values for the structural parameters in the cerebellum when compared to control pups. This confirms that growth and maturation of the cerebellum is dependent on the maintenance of normal T4 and T3 levels, underscores the magnitude of the deviations from the normal and sheds light on possible structural limitations in the cerebellum in

1999
NDERITU PROFWARUICHARLES. "Warui, C.N. (1999). Recent advances in avocado oil extraction biotechnology.". In: Proceedings of the first Biotechnology Workshop, Department of Chemistry, 7-11 June 1999.; 1999.
1998
NDERITU PROFWARUICHARLES. "Kamau, G.N., Kithinji, Z. ,Morris, G.F., and Warui, C.N. (1998). Extraction and spectroscopic study of avocado oil. International J. of Biochem, Physics, Vol. 6 and 7, Nos 1 and 2: 36 - 43.". In: Proceedings of the first Biotechnology Workshop, Department of Chemistry, 7-11 June 1999.; 1998.
NDERITU PROFWARUICHARLES. "Macharia, R.G., Warui, C.N. and Kisia, S.M. (1998). The effects of Decamethonium bromide induced paralysis on the skeletal development in the chick embryo. The Kenya Veterinary Journal, Vol 23,No.3 pp. 82-85.". In: Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.; 1998.
NDERITU PROFWARUICHARLES. "Nanguri, D.L., Warui, C.N. and Kamau, G.N. (1998). Spectroscopic studies and physico-chemical properties of Unsaponifiable matter of avocado oil.". In: Proceedings of the 1st Pan-African conference of the federation of African Societies of Biochemistry and Molecular Biology (FASBMB) 145-150.; 1998.
NDERITU PROFWARUICHARLES. "Warui, C.N. and Skadhauge, E. (1998). Morphological and functional anatomy of the cloaca and terminal colon of the African Ostrich:.". In: Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.; 1998.
1996
NDERITU PROFWARUICHARLES. "Warui, C.N. (1996). Commercialization of research work on the avocado oil extraction and avocado seedcake UNISPAR project.". In: Proceedings of the World Congress of Engineering Educators and Industry leaders, UNESCO, July 1996.; 1996.
1995
1994
1992
NDERITU PROFWARUICHARLES. "Makori, N., Oduor-Okello, D., Warui, C.N., and Otiang.". In: Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya.; 1992.
1989
NDERITU PROFWARUICHARLES. "Maina, J.N., Maloiy, G.M.O., Warui C.N., Njogu, E. K. and Kokwaro, E.D. (1989).A Scanning electron microscope study of the reptilian lung: The savanna monito lizard (Varanus exanthematicus) and the pancake tortoise Malacochersus tornieri).Anatomical Recor.". In: Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya.; 1989.
NDERITU PROFWARUICHARLES. "Warui, C.N., (1989). Light Microscopical morphometry of the kidneys of fourteen avian species. J. Ant..142: 19 - 31.". In: Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya.; 1989.
1987
Macaques R, Ott-Joslin JE, Lasiey BL, Zucker EL, Miller TJ, Bennett B, Stover J. "Zoo Zoology.". 1987.Website
NDERITU PROFWARUICHARLES. "Maloiy, G.M.O., Warui, C.N. and Clemens, E.T. (1987). Comparative gastrointestinal morphology of the Kori bustard and secretary bird. Zoo Biology 6.243-251.". In: Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya.; 1987.
1985
NDERITU PROFWARUICHARLES. "Warui, C.N. (1985). Quantitative observations on the structural characteristics of the avian kidney. Ph.D. Thesis, University of Liverpool (England).". In: Proceedings of the XIIth International Anatomical Congress: London 764 A.; 1985.
NDERITU PROFWARUICHARLES. "Warui, C.N. (1985). Stereological observations on the kidneys of 16 avian species.". In: Proceedings of the XIIth International Anatomical Congress: London 764 A.; 1985.
NDERITU PROFWARUICHARLES. "Warui, C.N., and King, A.S. (1985. Stereological observations on the kidney of the domestic fowl. J. Anat. 142: 129-139.". In: Proceedings of the XIIth International Anatomical Congress: London 764 A.; 1985.
1984
NDERITU PROFWARUICHARLES. "Warui, C.N. (1984). A stereological comparison of the perfused and immersed avian kidneys. J. Anat. 139: 729-730.". In: Proceedings of the XIIth International Anatomical Congress: London 764 A.; 1984.
1982

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