Maseno University Repository: Recent submissions
Now showing items 3381-3400 of 5713
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Agronomic performance of three most popular commercial watermelon cultivars in Kenya as compared to one newly introduced cultivar and one local landrace grown on dystric …
(Asian Research Publishing Network (ARPN)., 2008)Agronomic performance trial involving five cultivated watermelon accessions available in Kenya was conducted at Maseno University Research Fields for two seasons between year 2007 and 2008. The accessions included three ... -
Flavonoids from Tephrosia interrupta and T. linearis.
(CABI DIRECT, 1990)In east Africa, medicinal uses have been reported for the roots of T. interrupta (coughs and treatment of women after childbirth) and the leaves of T. linearis ([unspecified] diseases in infants). Flavonoid analyses are ... -
Isolation and chemical characterisation of pyrrolisidine alkaloids from some senecio
(University of Calgary, 1991) -
Errata. Pyrrolizidine Alkaloids from Senecio hadiensis
(American Chemical Society, 1991-09)17-Oxosparteine (1 mg), -isolupanine (3 mg), and N-methylcytisine (2 mg) were iden- tified by ms and tic comparisons with authentic samples (6,8). Catalytic reduction (2 mg) of 5,6-dehydrolu- panine (4 mg), oil, ms (9) ... -
Ruwenine and ruzorine: Pyrrolizidine alkaloids of Senecio ruwenzoriensis
(Pergamon, 1992-09-01)A reinvestigation of Kenyan Senecio ruwenzoriensis reported to contain two alkaloids of unknown structures, ruwenine and ruzorine, resulted in the isolation of the pyrrolizidine alkaloid isoline, accompanied by what appeared ... -
The pyrrolizidine alkaloids of Senecio syringifolius and S. hadiensis from Kenya
(Pergamon, 1993-01-01)Angularine, rosmarinine and 12-O-acetylrosmarine, together with their N-oxides were isolated from epigeal parts of S. syringifolius, while -
Chinchona Alkaloid from Dendrosenecio kilimanjari subsp. cottonii
(Georg Thieme Verlag Stuttgart· New York, 1997-02)Investigation of the Tanzanian Dendrosenecio kilimanjari subsp. cottonii resulted in the isolation of the cinchona alkaloid, cinchonidine (2). Conversion of cinchonidine to deoxy-cinchonidine was achieved in high yield ... -
Instructor evaluation in Kenyan teachers' colleges
(University of Alberta, 1988) -
Supervision and staff development: Overview of the literature
(Sage Publications, 2000-10)Instructional supervision should be an important component of a successful staff development program. This article examines the literature and research on instructional supervision and addresses the importance of supervision ... -
Rethinking staff development in Kenya: agenda for the twenty‐first century
(MCB UP Ltd, 2000-11-01)The Kenyan Government, being concerned about the quality of school education, is attempting to increase teacher effectiveness and student learning. To achieve these goals, current in‐service programs need to be improved ... -
Rethinking teacher evaluation in the third world: The case of Kenya
(Sage Publications, 2002-04)In a Third World country such as Kenya, the need to provide quality education has been emphasized by several writers. A major factor associated with education quality relates to teacher quality. The quality of teachers is ... -
The transition process: The early years of being a teacher
(Springer, Dordrecht, 2007) -
Adults helping adults: Teacher-initiated supervisory option for professional development
(Academic Journals, 2011-08-31)This paper discusses peer supervision among teachers. It considers the foci, practices, problem and potential importance of peer supervision in facilitating professional growth teachers. Peer supervision or peer coaching ... -
Influence of Water Availability on Food Crop Production in Semi-Arid Areas in Kibwezi District, Makueni County, Kenya
(Arts Humanit, 2015)Ecosystems provide essential services like water regulation and other processes which sustain and fulfill human life by directly or indirectly supporting humans‟ survival and quality of life. However, there is insufficient ... -
Instructional supervision in public secondary schools in Kenya
(Sage Publications, 2012-03)This article reports some findings of study regarding practices and procedures of internal instructional supervision in public secondary schools in Kenya. The findings are part of a large-scale project undertaken in Kenya ... -
THE DIMINISHING WEALTH: THE CASE OF NYAMASARIA WETLANDS IN KISUMU TOWN
(Egerton university press, 2007-04)Although household food security may not capture all dimensions of food such as availability, access and utilisation; inability of households to put enough and quality food on the table is a manifestation of bad food ... -
A Functional Calculus for (α, α+ 1)− type R Operators
(Int. Journal of Math. Analysis,, 2010)A closed densely defined operator H, on a Banach space X, whose spectrum is contained in R and satisfies (z − H)−1 ≤ c z α | z|β ∀ z ∈ R with z α := |z|2 + 1 (1) for some α , β ≥ 0; c > 0, is said to ... -
On the convexity of Stampfli's numerical range
(Cambridge University Press, 1996-02)This paper investigates a certain type of numerical range introduced by Stampfli. In particular, we investigate the convexity of this set of elements of operators on Hilbert spaces and its relationship to the algebra ... -
Norm of a derivation and hyponormal operators
(Int J Math Anal, 2010)We characterize when the norm of inner derivation on a norm ideal equals that on the quotient algebra. We further investigate norms of inner derivations implemented by normal and hyponormal operators on norm ... -
Norms of Inner Derivations on Norm ideals
(Int. Journal of Math. Analysis, 2010)Let B(H) be the algebra of bounded linear operators on a Hilbert space H and J be a norm ideal in B(H). We investigate the relationship between the diameter of the numerical range of an operator A ∈ B(H) and the norm ...