Matsitsi, Muthama S.; Linturi, James M.; Kebwaro, J. M.; Maweu, O. M.(2019-03)
A total of 56 samples of raw building materials (26 rocks and 30 sand samples) each weighing 500g were randomly sampled along the riverine for the alternate rainy and dry seasons. Gamma-ray spectrometric analysis of rocks ...
Matsitsi, Muthama S.; Linturi, James M.; Kebwaro, J. M.; Kirago, L. M.(Oxford University Press, 2020-01-14)
Gamma spectroscopic analyses of sand and rock samples from Tyaa River report an average activity concentration of 33 ± 1, 55 ± 2.8 and 812 ± 40.46 Bqkg−1 for 226Ra, 232Th and 40K, respectively in the sand. A similar analysis ...
The current study sought to establish the effect of capital gains tax on performance of real estate businesses in Mavoko Municipality, Machakos County. The study used descriptive research design where the target population ...
Kavisi, Janet M.; Cheloti, Selpher K.; Mulwa, Janet K.(2020-02)
The purpose of this study was to establish the influence of availability of teaching resources in
implementation of Strengthening of Mathematics and Science Education programme (SMASE) in
Public Secondary Schools in ...
Musyoka, Victoria M.; Ndungu, Charles K.; Kauti, Matheaus K.(Juniper Publishers Inc., 2020-02)
This study set out to investigate contribution of forestry provisioning ecosystem services (FPES) to the household income of small holder farmers living adjacent Chyulu Hills Forest and assess factors influencing utilization ...
Musyoka, Victoria M.; Ndungu, Charles K.; Kauti, Matheaus K.(Juniper Publishers Inc., 2019-03-22)
A study was carried out to examine the types of forest provisioning ecosystem services (FPES) extracted from Chyulu Hills Forest by small holder farmers living in the forest adjacent area. Using a Survey Research Design, ...
The purpose of this study was to establish the different energy sources used in public secondary schools in Mtito Andei Division, Makueni County, investigate the factors determining the choice of the energy sources and ...
The World Drug Report 2019 shows that in 2017, an estimated 271 million people, or 5.5 per cent of the global population aged 15–64, had used drugs in the previous year and that the drug problem had reached crisis level. ...
Shagwila, Victor; Okelo, N. B.; Obogi, Robert; Cyprian, O. S.(2019-05)
In the present paper, we introduce and study the concept of norms of derivations, in particular norm estimates of derivations implemented by self-adjoint operators. We show that kδC k = kCX −XCk ≤ 2kCk, for inner derivation ...
Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B.(Hindawi, 2015-05)
The concept of essential numerical range of an operator was defined and studied by Stampfli and Williams in 1972. In this paper, we consider the joint essential numerical range of an m-tuple of operators T = (푇1,...,푇푚)in ...
Cyprian, O. S.; Chikamai, L.; Aywa, S.(SciPress, 2019)
This paper focuses on the properties of the essential maximal numerical range of Aluthge transform Te. For instance, among other results, we show that the essential maximal numerical range of Aluthge transform is nonempty ...
Masibayi, Andrew; Cyprian, O.S; Okelo, N. B.(Hindawi, 2015-05)
Navier-Stokes equations are the equations of conservation of linear momentum.In this paper we express this type of equation from vector form to spherical co-ordinates. We refer to some equations in this paper ...
Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B.(Hindawi, 2015-05)
In this paper, we consider at the equations of motion in vector form and convert them to cylindrical coordinates.We also consider the continuity and momentum properties of these equations.
The study amalgamated earthworm and agro-industrial wastes through vermicomposting and then evaluated the potential of the bedding (mixture of Eisenia fetida and
vermicompost) to replace fishmeal in semi-intensive farming ...
Musila, Annastasia K.; Maithya, Harrison M.; Masinde, Jamin(2019)
Retirement is a period that is associated with many problems ranging from physical, psychological to socioeconomic ones. While the majority of research in Kenya has focused on the challenges of retirement, little is known ...
Cyprian, O. S.; Masibayi, Andrew; Okelo, N. B.(Hindawi, 2015-05)
The concept of maximal numerical range of a bounded operator T on B(X) was introduced
and studied in by Stampfli who used it to derive an identity for the norm of derivation. This
concept was later generalised by Ghan ...
Musila, Annastasia K.; Masinde, Jamin; Maithya, Harrison M.(2019-09-25)
Retirement is a period that is associated with many challenges ranging from physical, psychological to socio-economic ones. This study sought to find out how retired teachers in Makueni County adjusted in their retirement ...
The Aluthge transform Te of a bounded linear operator T on a complex Hilbert space X is the operator |T| 1 2 U|T| 1 2 . Here, T = U|T| is any polar decomposition of T with U a partial isometry and |T| = (T ∗T) 1 2 . This ...
The study of the Aluthge transform Te was introduced and studied by Aluthge
in his study of p-hyponormal operators in 1990. Several researchers have since studied various properties of the transform for a single operator ...
Denote by T the bounded linear operator on a complex Hilbert space X and let T = U|T | be any polar decomposition of T with U a partial isometry and |T | = (T ∗T ) 1 2 . Then, the Aluthge transform Te of T is the operator ...