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    Effects of biocementation on some properties of cement-based materials incorporating Bacillus Species bacteria – a review 

    Mutitu, Karanja D.; Munyao, Mulwa O.; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong'o, Karanja J. (Taylor and Francis, 2019-11)
    There is a growing need in the construction industry to improve transfer and durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently emerged as potential micro-organisms well known for precipitation ...
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    Bacteria and Archaea diversity within the hot springs of Lake Magadi and Little Magadi in Kenya 

    Mwirichia, Romano K.; Kambura, Anne Kelly; Kasili, Remmy Wekesa; Karanja, Edward Nderitu; Makonde, Huxley Mae; Boga, Hamadi Iddi (2016-07)
    Background: Lake Magadi and little Magadi are hypersaline, alkaline lakes situated in the southern part of Kenyan Rift Valley. Solutes are supplied mainly by a series of alkaline hot springs with temperatures as high as ...
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    Influence of Starkeya novella on Mechanical and Microstructural Properties of Cement Mortars 

    Munyao, Onesmus Mulwa; Thiong’o, Joseph K.; Wachira, Jackson M.; Mutitu, Daniel Karanja; Mwirichia, Romano K. (Hindawi, 2020-04)
    Cement-based materials are subject to degradation during their service life. Most of the structural failures have been associated with corrosion of the rebar due to chloride ingress, alkali aggregate reaction, and/or sulfate ...
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    Influence of Lysinibacillus sphaericus on compressive strength and water sorptivity in microbial cement mortar 

    Mutitu, Daniel Karanja; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong'o, Joseph Karanja; Munyao, Onesmus Mulwa; Muriithi, Genson (Elsevier, 2019-11)
    Cement structures are subject to degradation either by aggressive media or development of micro/macro cracks which create external substance ingress pathways. Microbiocementation can be employed as a self-intelligent solution ...
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    Effects of biocementation on some properties of cement-based materials incorporating Bacillus Species bacteria – a review 

    Mutitu, Karanja Daniel; Munyao, Mulwa O.; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong'o, Karanja J.; Marangu, Mwiti J. (Taylor and Francis, 2019-11)
    There is a growing need in the construction industry to improve transfer and durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently emerged as potential micro-organisms well known for precipitation ...
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    Biocementation Influence on Flexural Strength and Chloride Ingress by Lysinibacillus sphaericus and Bacillus megaterium in Mortar Structures 

    Mutitu, Daniel Karanja; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong’o, Joseph Karanja; Munyao, Onesmus Mulwa; Genson, Muriithi (Hindawi, 2020-05)
    The concrete/mortar durability performance depends mainly on the environmental conditions, the microstructures, and its chemistry. Cement structures are subject to deterioration by the ingress of aggressive media. This ...
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    Metabolic traits of an uncultured archaeal lineage -MSBL1- from brine pools of the Red Sea 

    Mwirichia, Romano K.; Intikhab, Alam; Mamoon, Rashid; Manikandan, Vinu; Wail, Ba-Alawi; Kamau, Anthony A.; Ngugi, David K.; Göker, Markus; Klenk, Hans-Peter; Bajic, Vladimir; Ulrich, Stingl (2016-01)
    The candidate Division MSBL1 (Mediterranean Sea Brine Lakes 1) comprises a monophyletic group of uncultured archaea found in different hypersaline environments. Previous studies propose methanogenesis as the main metabolism. ...
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    Isolation and characterization of actinobacteria from Lake Magadi, Kenya 

    Ronoh, Regina C.; Budambula, Nancy; Mwirichia, Romano K.; Boga, Hamadi I. (Academic Journals, 2013-08-09)
    Actinobacteria are ubiquitous and have been detected in terrestrial and aquatic ecosystems. Although, various studies have focused on the ecology of this phylum, data on the ecology of actinobacteria endemic to soda lakes ...
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    Bacterial Diversity in the Haloalkaline Lake Elmenteita 

    Mwirichia, Romano K.; Cousin, S.; Muigai, A.W.; Boga, Hamadi I.; Stackebrandt, Erko (Springer-Verlag, 2010-06)
    Lake Elmenteita is one of the alkaline saline lakes within the Kenyan Rift valley. The lake is situated on the floor of the Kenyan Rift Valley at 1,776 m above sea level and has no direct outlet. The microbial diversity ...
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    Complete genome sequence of Oceanithermus profundus type strain (506T) 

    Pati, A.; Zhang, X.; Lapidus, A.; Nolan, M.; Lucas, S.; Del Rio, T.G.; Tice, H.; Cheng, J.F.; Tapia, R.; Han, C.; Goodwin, L.; Pitluck, S.; Liolios, K.; Pagani, I.; Kyrpides, N.C.; Klenk, H.P.; Land, M.; Mwirichia, Romano K. (2011)
    Oceanithermus profundus Miroshnichenko et al. 2003 is the type species of the genus Ocea-nithermus, which belongs to the family Thermaceae. The genus currently comprises two spe-cies whose members are thermophilic and are ...
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    Mwirichia, Romano K. (37)
    Boga, Hamadi I. (12)Wachira, Jackson M. (6)et al. (5)Lapidus, A. (5)Munyao, Onesmus Mulwa (4)Mutitu, Daniel Karanja (4)Budambula, Nancy (3)Karanja, Edward N. (3)Lucas, S. (3)... View MoreSubjectLake Magadi (6)diversity (5)GEBA (5)Gram-negative (4)16s rRNA (3)Actinobacteria (3)Soda lakes (3)16S rDNA (2)16S rRNA cDNA (2)Alkaliphiles (2)... View MoreDate Issued2020 - 2022 (4)2010 - 2019 (31)2009 - 2009 (2)Has File(s)Yes (37)

    University of Embu copyright ©  2021
    Contact us | Send Feedback
    Library ER 
    Atmire NV