Recently added

School of Science and Computing (JA): Recent submissions

  • Measurement of the ω → π 0 e + e − and η → e + e − γ Dalitz decays with the A2 setup at the Mainz Microtron 
    Adlarson, P.; Afzal, F.; Aguar-Bartolome, P.; Ahmed, Z.; Annand, J. R. M.; Arends, H. J.; Bantawa, K.; Beck, R. (American Physical Society, 2017-03-22)
    The Dalitz decays η → e+e−γ andω → π0e+e− have been measured in the γp → ηp and γp → ωp reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron. The value obtained for the slope parameter of ...
  • Measurement of the π 0 → e +e −γ Dalitz decay at the Mainz Microtron 
    Adlarson, P.; Afzal, F.; Aguar-Bartolom´, P.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Bantawa, K.; Beck, R.; Berghauser, H.; Biroth, M.; Borisov, N. S.; Braghieri, A.; Briscoe, W. J.; Cherepnya, S.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Dieterle, M.; Downie, E. J.; Drexler, P.; Ferretti Bondy, M. I.; Fil’kov, L. V.; Gardner, S.; Garni, S.; Glazier, D. I.; Glowa, D.; Gradl, W.; Gurevich, G. M.; Hamilton, D. J.; Hornidge, D.; Huber, G. M.; Jude, T. C.; Kaser, A.; Kashevarov, V. L.; Kay, S.; Keshelashvili, I.; Kondratiev, R.; Korolija, M.; Krusche, B.; Kulikov, V. V.; Lazarev, A.; Linturi, James M.; Lisin, V.; Livingston, K.; MacGregor, I. J. D.; Macrae, R.; Manley, D. M.; Martel, P. P.; Martemianov, M.; McGeorge, J. C.; McNicoll, E. F.; Metag, V.; Middleton, D. G.; Miskimen, R.; Mornacchi, E.; Mullen, C.; Mushkarenkov, A.; Neganov, A.; Neiser, A.; Nikolaev, A.; Oberle, M.; Ostrick, M.; Ott, P.; Otte, P. B.; Paudyal, D.; Pedroni, P.; Polonski, A.; Prakhov, S. (American Physical Society, 2017-02-07)
    The Dalitz decay π 0 → e +e −γ has been measured in the γp → π 0 p reaction with the A2 taggedphoton facility at the Mainz Microtron, MAMI. The value obtained for the slope parameter of the π 0 electromagnetic transition ...
  • Study of η and η0 Photoproduction at MAMI 
    Kashevarov, V. L.; Ott, P.; Prakhov, S.; Adlarson, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Beck, R.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Codling, R.; Collicott, C.; Costanza, S.; Denig, A.; Downie, E. J.; Dieterle, M.; Ferretti Bondy, M. I.; Fil’kov, L. V.; Fix, A.; Gardner, S.; Garni, S.; Glazier, D. I.; Glowa, D.; Gradl, W.; Gurevich, G.; Hamilton, D. J.; Hornidge, D.; Howdle, D.; Huber, G. M.; Käser, A.; Kay, S.; Keshelashvili, I.; Kondratiev, R.; Korolija, M.; Krusche, B.; Linturi, James M.; Lisin, V.; Livingston, K.; MacGregor, J. D.; MacRae, R.; Mancell, J.; Manley, D. M. (American Physical Society, 2017)
    The reactions γp→ηp and γp→η′p are measured from their thresholds up to the center-of-mass energy W=1.96 GeV with the tagged-photon facilities at the Mainz Microtron, MAMI. Differential cross sections are obtained with ...
  • Measurement of π 0 photoproduction on the proton at MAMI C 
    Adlarson, P.; Afzal, F.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Azimov, Ya. I.; Beck, R.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cherepnya, S.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Downie, E. J.; Dieterle, M.; Ferretti Bondy, M. I.; Fil'kov, L. V.; Fix, A.; Gardner, S.; Garni, S.; Glazier, D. I.; Glowa, D.; Gradl, W.; Gurevich, G.; Hamilton, D. J.; Hornidge, D.; Huber, G. M.; Käser, A.; Kashevarov, V. L.; Kay, S.; Keshelashvili, I.; Kondratiev, R.; Korolija, M.; Korolija, M.; Krusche, B.; Kulikov, V. V.; Lazarev, A.; Linturi, James M.; Lisin, V.; Livingston, K.; MacGregor, I. J.; Manley, D. M.; Martel, P. P.; Martemianov, M.; McGeorge, J. C.; Meyer, W.; Middleton, D. G.; Miskimen, R.; Mushkarenkov, A.; Neganov, A.; Neiser, A.; Oberle, M.; Ostrick, M.; Ott, P.; Otte, P. B.; Oussena, B.; Paudyal, D.; Pedroni, P.; Polonski, A.; Polyanski, V. V.; Prakhov, S.; Rajabi, A.; Reicherz, G.; Ron, G.; Rostomyan, T.; Sarty, A.; Schott, D. M.; Schumann, S.; Sfienti, C.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Strakovsky, I. I.; Strub, Th.; Supek, I.; Taragin, M. F.; Thiel, A.; Thiel, M.; Tiator, L.; Thomas, A.; Unverzagt, M.; Usov, Yu. A.; Wagner, S.; Watts, D. P.; Werthmüller, D.; Wettig, J.; Witthauer, L.; Wolfes, M.; Workman, R. L.; Zana, L. A. (American Physical Society, 2015)
    Differential cross sections for the gamma p -> pi^0 p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass energy W=1.9 GeV. The new results, obtained ...
  • Insight into the Narrow Structure in η Photoproduction on the Neutron from Helicity-Dependent Cross Sections 
    Witthauer, L.; Dieterle, M.; Abt, S.; Achenbach, P.; Afzal, F.; Ahmed, Z.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N. S.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Costanza, S.; Collicott, C.; Denig, A.; Downie, E. J.; Drexler, P.; Ferretti-Bondy, M. I.; Gardner, S.; Garni, S. (American Physical Society, 2016-09-22)
    The double polarization observable E and the helicity dependent cross sections σ1/2 and σ3/2 were measured for η photoproduction from quasifree protons and neutrons. The circularly polarized tagged photon beam of the A2 ...
  • Transcriptional responses of Anopheles gambiae s.s mosquito larvae to chronic exposure of cadmium heavy metal 
    Muturi, Catherine N.; Rono, Martin K.; Masiga, Daniel K.; Wachira, Francis N.; Ochieng, Richard; Mireji, Paul O. (F1000Research, 2017-12-22)
    Background: Anopheles gambiae larvae traditionally thrive in non-polluted environments. We previously documented the presence of the larvae in heavy metal polluted urban aquatic environments and the associated biological ...
  • Traditional knowledge on use of medicinal plants in Kitui County, Kenya 
    Kisangau, Daniel P.; Kauti, Matheaus K.; Mwobobia, Royford M.; Kanui, Titus I.; Musimba, Nashon K. R. (2017-11)
    Background: The use of traditional medicines in Kenya accounts for more than 70% or more of basic health-care treatments. Documentation of herbal plants is necessary because they are becoming more important, especially due ...
  • Indigenous leafy vegetables with potential medicinal and immune boosting properties 
    Kisangau, Daniel P. (2017)
    Many studies have been carried out on the nutritive value of indigenous leafy vegetables but few have been done on the medicinal value of these traditional vegetables. A study was carried out to document the medicinal ...
  • A special Norlund means and its spectrum 
    Okello, I. A.; Akanga, J. R.; Wali, Augustus N. (Hikari, 2017)
    In summability theory, different classes of matrices have been in-vestigated and characterized. There are various types of summability methods e.g. N orlund means, Cesaro, Riesz, Euler, Abel and many others. The spectrum ...
  • Computer Laptop Project Strategy for Basic Education Schools in Kenya 
    Mariga, Geoffrey; Ogenga, Stephen; Shikali, Casper S.; Muliaro, Joseph (2017-05)
    Kenya’s Vision 2030 recognizes the enabling role of Information and Communication Technology ( ICT ) and anchors some of its key aspirations upon the availability and adoption of computers for schools. The overall ...
  • Hydrogen sulfide and ammonia removal from biogas using water hyacinth - derived carbon nanomaterials 
    Makauki, Elizabeth; King’ondu, Cecil K.; Kibona, Talam E. (Academic Journals, 2017-07)
    he presence of hydrogen sulfide (H2S) and ammonia (NH3) in biogas pose serious human health and environmental challenges. In this study, H2S and NH3 were successfully removed from biogas using water hyacinth-derived carbon ...
  • Galactitol as phase change material for latent heat storage of solar cookers: Investigating thermal behavior in bulk cycling 
    John, Geoffrey; König-Haagen, Andreas; King’ondu, Cecil K.; Dieter Brüggemann, Dieter (2015-09)
    Galactitol, in terms of its phase change enthalpy and temperature, is a promising phase change material (PCM) for medium temperature (150–200 °C) latent heat storage of solar cookers. This study aimed at determining the ...
  • Energy Characteristics of Five Indigenous Tree Species at Kitulangalo Forest Reserve in Morogoro, Tanzania. 
    Warburg, Christopher T.; King’ondu, Cecil K. (2014)
    This study presents the investigation of material composition and energy characteristics of B. spiciformis, B. boehmii, C. molle, P. maprouneifolia, and S. birrea indigenous tree species at kitulangalo forest reserve in ...
  • Potential distribution dataset of honeybees in Indian Ocean Islands: Case study of Zanzibar Island 
    Mwalusepo, Sizah; Muli, Elliud; Nkoba, Kiatoko; Nguku, Everlyn; Kilonzo, Joseph; Abdel-Rahman, Elfatih M.; Landmann, Tobias; Fakih, Asha; Raina, Suresh (Elsevier, 2017-08-30)
    Honeybees (Apis mellifera) are principal insect pollinators, whose worldwide distribution and abundance is known to largely depend on climatic conditions. However, the presence records dataset on potential distribution of ...
  • Genetic diversity of indigenous Bradyrhizobium nodulating promiscuous soybean [Glycine max (L) Merr.] varieties in Kenya: Impact of phosphorus and lime fertilization in two contrasting sites 
    Wasike, V. W.; Lesueur, D.; Wachira, Francis N.; Mungai, N. W.; Mumera, L. M.; Sanginga, N.; Mburu, H. N.; Mugadi, D.; Wango, P.; Vanlauwe, B. (Springer Verlag, 2009-09)
    While soybean is an exotic crop introduced in Kenya early last century, promiscuous (TGx) varieties which nodulate with indigenous rhizobia have only recently been introduced. Since farmers in Kenya generally cannot afford ...
  • First report of a phytoplasma associated with Bermuda grass white leaf disease in Kenya 
    Obura, E.; Masiga, D.; Midega, C. A.; Wachira, Francis N. (2010-06-11)
    Cynodon dactylon plants were observed at 5 locations in Mbita and 2 locations in Bungoma areas of western Kenya showing symptoms similar to Bermuda grass white leaf (BGWL) disease, caused by a phytoplasma. Affected grasses ...
  • Screening of Kenyan tea clones for susceptibility to mite attack at different ecological zones 
    Sudoi, Vincent; Cheramgoi, Evelyne; Langat, Joel K.; Kamunya, Samson M.; Wachira, Francis N. (2011-06-26)
    Tea growers in Kenya are faced with a number of challenges; the major one being mite attack. It is therefore necessary to continuously breed and screen tea varieties that are not only high yielding but tolerant to mite ...
  • Measurement of pozzolanic activity index of scoria, pumice, and rice husk ash as potential supplementary cementitious materials for portland cement 
    Mboya, Hieronimi A.; King’ondu, Cecil K.; Njau, Karoli N.; Mrema, Alex L. (Hindawi Publishing Corporation, 2017-08)
    This work investigated the properties of scoria and pumice as supplementary cementitious materials (SCMs) for Portland cement and compared to those of rice husk ash (RHA). X-ray fluorescence, X-ray diffraction, and pozzolanic ...
  • Experimental investigation of a finned pentaerythritol-based heat storage unit for solar cooking at 150-200 °C 
    NKhonjera, Lameck; Kuboth, Matthias; König-Haagen, Andreas; John, Geoffrey; King’ondu, Cecil K.; Brüggemann, Dieter; Bello-Ochende, Tunde (Elsevier, 2016)
    An experimental study on the charging and discharging performance of a finned thermal energy storage unit (TESu) that utilizes pentaerythritol (PE) as phase change material (PCM) was conducted. It is known that fins enhance ...
  • Effects of tea on survival rates and liver pathology of Trypanosoma brucei brucei infected mice 
    Mbuthia, S. K.; Wachira, Francis N.; Ngure, R. M.; Ouma, J.; Kagira, J. M. (National Research Center for Protozoan Diseases, 2011)
    The current study investigated the effects of different types of Kenyan tea extracts on the pathogenesis ofTrypanosoma brucei brucei in a Swiss White mice model. Following infection with trypanosomes, the micewere monitored ...

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