Publications

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2021
Bone G, Parr T, Brameld J, Elmes M, Gonzalez-Carranza Z, Koech O. The effect of mezquite pod flour in a wheat-based diet on broiler chicken growth performance. University of Nottingham, Nottingham, UK: Science Direct; 2021.
Muturi PG, Mwangi JM, Kariuki MI. "Effect of modern marketing practices on performance of real estate firms in Kenya." . International Journal of Scientific Advances. 2021;2(4):487-92.
ADWATI SM, Edalia LG, Gathece L. "EFFECT OF PAST DENTAL EXPERIENCE ON PATIENTS ATTITUDES FOLLOW UP ORAL HEALTH CARE INTERVENTION." EAMJ. 2021;VOL 98 NO2 PG 3529-3537:VOL 98 NO2 PG 3529-3537.
Lengai GMW, Muthomi JW, Mbega ER. "Effect of plant extracts on important fungal pathogens and germination of tomato seed." International Journal of Biosciences (IJB). 2021;18(4):77-92.
Onyango SO, Abong GO, Okoth MW, Kilalo DC, Mwang’ombe AW. "Effect of Pre-treatment and Processing on Nutritional Composition of Cassava Roots, Millet, and Cowpea Leaves Flours." Nutrition and Sustainable Diets, a section of the journal Frontiers in Sustainable Food Systems. 2021;5(625735):1-8.
Sura M, Osoti A, Gachuno O, Musoke R, Kagema F, Gwako G, Ondieki D, Ndavi PM, Ogutu O. "Effect of umbilical cord milking versus delayed cord clamping on preterm neonates in Kenya: A randomized controlled trial." PloS one. 2021;16(1):e0246109.
Mandeep S, Osoti A, Gachuno O, Musoke R, Kagema F, Gwako G, Ondieki D, Ndavi PM. "Effect of umbilical cord milking versus delayed cord clamping on preterm neonates in Kenya: A randomized controlled trial.". 2021.
D S, O OR, O OW, N MJ. "Effect of Waste Clay Brick Powder on Physical and Mechanical Properties of Cement Paste." Open Civil Engineering Journal. 2021;Vol 15.
Judy Kimaru1*, Henry Mutembei2 JKM2. "Effectiveness of Drought Risk Reduction Policies: Case Study of Hay Production in Kajiado County, Kenya." American journal of Climate Change. 2021;(10):512-532.
Musembei LM, Bett RC, Gachuiri CK, Mbondo BK, Kibegwa FM. "Effects of freezing as a post-harvest storage technique on quality of Friesian crossbred cattle milk." African Journal of Food Science. 2021;45(7):298-303.
Musembei LM, Bett RC, Gachuiri CK, Mbondo BK, Kibegwa FM. "Effects of freezing as a post-harvest storage technique on quality of Friesian crossbred cattle milk." African Journal of Food Science. 2021;45(7):298-303.
Musembei LM, Bett RC, Gachuiri CK, Mbondo BK, Kibegwa FM. "Effects of freezing as a post-harvest storage technique on quality of Friesian crossbred cattle milk." African Journal of Food Science. 2021;15(7):298-303.
Wang’ombe DN, Mose BR, Maranga SM, MBUYA TM. "Effects of friction stir welding on microstructure and mechanical properties of extruded secondary aluminum 6061 alloy." Materialwissenschaft und Werkstofftechnik. 2021;52(3):270-278 . Abstracthttps://doi.org/10.1002/mawe.202000094

Experiments were carried out to determine the effects of friction stir welding on microstructure and properties of recycled Aluminum 6061 alloy, whose alloy content varied from that of primary alloy. The alloy was processed at tool speed and feed ranges of 530 rev/min–1320 rev/min and 40 mm/min–100 mm/min respectively. Microstructure examination; tensile test and Vickers microhardness evaluation were carried out. Microstructure of the alloy was in four zones including: base metal, heat affected zone, thermo-mechanically affected zone and stirred zone. Average grain size of unprocessed material was 93 μm. Processing the alloy at 530 rev/min and 100 mm/min resulted in grains of average size 93 μm, 183 μm and 7 μm; in base metal, heat affected zone and stirred zone respectively. Tensile failure occurred in heat affected zone; that was exposed to high heat. The alloy hardness decreased to a minimum in heat affected zone, followed by a brief rise in thermo-mechanically affected zone, to another maximum in stirred zone. Processed zone hardness was inversely proportional to tool speed and directly proportional to feed rate. Increase in the speed and decrease in feed, increased heat which deteriorated the properties.

Jerop B, Segera DR. "An Efficient PCA-GA-HKSVM-Based Disease Diagnostic Assistant." Hindawi Biomed Research International. 2021;2021(2021):1-10.
Sila JM, Guto PM, Michira IN, Mwaura FB, Muge EK. "Electrochemical Determination of Penicillin G in Cow Milk and pharmaceuticals in SDS/Acetate buffer." Int. J. Electrochem. Sci.. 2021;16(4):1-13.
Dabasso BH, Wasonga OV, Irungu P, Kaufmann B. "Emerging pastoralist practices for fulfilling market requirements under stratified cattle production systems in Kenya's drylands." Animal Production Science. Accepted 23 February 2021. 2021.
J. MMMNFFM. "Employee reward, work environment and employee performance at the Kenya Police service,." DBA Africa Management Review . 2021;11(1).
Makokha, Chepken C, Opiyo E. "End User Centric Quantitative Trust Model in Cloud Computing." American Journal of Computer Science and Engineering. 2021;7(1):1-7.
JW G, J O’o, P G. "Endometriosis Diagnosis correlation of Laparoscopic visualization and histopathology confirmation in low Resource setting." Open J Obs Gyne. 2021;11(7):845-852. Abstractojog_2021071515313873.pdfWebsite

Abstract

Background: Endometriosis is enigmatic clinical entity which is described as the location of the endometrial tissue external of the uterine cavity. Endometriosis constitutes a serious health issue due to its high affliction of 10% of reproductive women. With limited resources in Africa, it is essential to assess whether diagnosis of endometriosis by laparoscopic visualization can be used as a substitute for histology. Objective: To correlate the diagnosis of endometriosis by laparoscopic visualization and the histological confirmation of the biopsy taken. Methods: A prospective cross sectional study with a sample size of 443 was undertaken in the diagnosis of endometriosis among Africans in Nairobi, Kenya from March 2019 to March 2021. Women undergoing laparoscopy were screened for endometriosis by visualization and a biopsy was taken for histopathology. Diagnosis of endometriosis by visualization was correlated with histological confirmed endometriosis. Results: Women with a diagnosis of endometriosis through laparoscopic visualization were found to be 77 (17.4%) and 30 (6.8%) had positive histology for endometriosis. Laparoscopic visualization diagnosis had a low positive predictive value of 39%. Conclusion: Laparoscopic visualization diagnosis had a low positive predictive value of 39% and this did not correlate with histopathologic diagnosis. It is essential to perform biopsy with histopathology for the confirmation of endometriosis.

3. Onwonga RN, Chemining’wa GN, Jumbo MB. "Enhancing yellow maize production for sustainable food and nutrition security in African ." Journa Kenya. East l of Science, Technology and Innovation. 2021;2(1):00.
S W, P S. "Environmental effects of dimension stone quarrying activities in Ndarugo area of Kiambu County, Kenya." International Journal of Social Sciences Management and Entrepreneurship . 2021;5(2):1-11.
Chepkwony EC, Gitao GC, Muchemi GM, Sangula AK, Kairu-Wanyoike SW. "Epidemiological study on foot-and-mouth disease in small ruminants: Sero-prevalence and risk factor assessment in Kenya." PLOS ONE . 2021;16 ((8)):e0234286. https://doi.org/10.1371/journal.pone.0234286.goat_fmdplos_one.pdf
KathambiBE, N MUTHAMAJ, AnguC. "Essence of Water Governance for SMEs for Sustainable Consumption in Nairobi, Kenya." East African Journal of Science, Technology and Innovation. 2021;2(2).
Kathambi EB, Muthama JN, Ang'u C. "Essence of Water Governance for SMEs for Sustainable Consumption in Nairobi, Kenya." East African Journal of Science, Technology and Innovation. 2021;2.
Murunga J, Muriithi MK, Wawire NW. "Estimating the size of the informal sector in Kenya, Cogent Economics & Finance." Cogent Economics & Finance. 2021;9(1):1-15.
S.I.Akaranga, Situma JW. "The Ethical dimensions of Entrepreneurial Practice in three traditions." East African Journal of Traditions, Culture and Religion. 2021;3(1):23-34.east_african_journal_of_traditions_culture_and_religion_vol_3_no_1__23_34.pdf
Ali HM, Nguta JM, Mapenay IO, Musila FM, Vincent OM, Nyak DM. "Ethnopharmacological uses, biological activities, chemistry and toxicological aspects of Ocimum americanum var. americanum (Lamiaceae)." The Journal of Phytopharmacology. 2021;10(1):56-60 .
Ali HM, Nguta JM, Mapenay IO, Musila FM, Omambia VM, Matara DN. "Ethnopharmacological uses, biological activities, chemistry and toxicological aspects of Ocimum americanum var. americanum (Lamiaceae)." Journal of Phytopharmacology. 2021;10:56-60.
Omambia VM, Nguta JM, Mitema ES, Musila FM, Nyak DM, Ali HM, Gervason MA. "Ethnopharmacology, pharmacological activities, and chemistry of the Hypericum genus." The Journal of Phytopharmacology. 2021;10(2):105-113.
Siko I, Sola P, Mulwa, M R, Otieno P. "Evaluating charcoal producers’ preferences for improved production systems in Marigat sub county, Baringo County." Environmental Challenges. 2021;5(100275).
Mushori J, Charles Mallans Rambo, Wafula CM, Matu J. "Evaluating Contractors’ Safety Record and Its Influence on Performance of Road Infrastructural Projects." World Journal of Engineering and Technology. 2021;2021(9):203-228 .
Muigai DK, Onwonga RN, Karuku GN, Mohammed A. "Evaluating maize performance under varying water depletion levels in bura irrigation scheme." Kenya.Int. J. Agron. Agri. Res. . 2021;18(1):19-29.
Wanjira J, Ndiwa TC, Gichuki N, Wykstra M. "Evaluating the efficacy of flashing lights in deterring livestock attacks by predators: a case study of Meibae Community Conservancy, Northern Kenya." East African Journal of Science, Technology and Innovation. 2021;2(3).
Kimeli P, Vanleeuwen J, Gitau GK, Heider LC, Heider LC, McKenna SL, Greenwood SJ, Richards S. "Evaluation of environmental and comfort improvements on affective welfare in heifer calves on smallholder dairy farms." Preventive Veterinary Medicine. 2021;189:105296.
Namungu L, Mburu C, Were FH. "Evaluation of Occupational Lead Exposure in Informal Work Environment in Kenya." Chemical Science International Journal, . 2021;30(11):45-54.
Muhwezi MRL, Aseey A, Ondicho TG, Otieno MAC. "An evaluation of social and psychological effect of empowerment of women in Uganda through Technical and Vocational Education and Training participation." Journal of African Studies and Ethnographic Research. 2021;3(4):24-45.
Amare GG, Degu A, Njogu P, Kifle ZD. "Evaluation of the antimalarial activity of the leaf latex of Aloe weloensis (Aloaceae) against plasmodium parasites." Evid-based Complem. Altern. Med. 2021;2021:6664711.
Kaoga J, Olago D, Ouma G, Ouma G, Onono J. "The evolving cultural values and their implications on the Maasai Pastoralists, Kajiado County, Kenya." Scientific African. 2021;13(ISSN 2468-2276).
A A Fabuyide, Cornish LA, Apata AO, Rading GO, Muobeni TN, Witcomb MJ, Jain PK, Borode JO. "Experimental Liquidus Surface Projection and Isothermal Section at 1000C of the V-Ni-C System, J of Phase Equilibria and Diffusion.". 2021.
R. Sungura, Onyambu C, Mpolya E, E. Sauli, Vianney J-M. "Extended scope of neuroimaging and prospects in brain atrophy mitigation: A systematic review." Interdisciplinary neurosurgery . 2021;23:100875.
Ngetich D, Bett R, Charles Gachuiri, Kibegwa F. "Factors influencing Euryarchaeal gut methanogens distribution in dairy cattle in smallholding farms." East African Journal of Science, Technology and Innovation. 2021;2(4).
Ngetich D, Bett R, Charles Gachuiri, Kibegwa F. "Factors influencing Euryarchaeal gut methanogens distribution in dairy cattle in smallholding farms." East African Journal of Science, Technology and Innovation. 2021;2(4).
Ngetich D, Bett R, Charles Gachuiri, Kibegwa F. "Factors influencing Euryarchaeal gut methanogens distribution in dairy cattle in smallholding farms ." East African Journal of Science, Technology and Innovation. 2021;2(4).
Mwololo, M.H., Nzuma MJ, Ritho, N.C. "Farmer Empowerment in Agriculture and its Association with Smallholder Farm Incomes in Kenya." African Journal of Agricultural and Resource Economics. 2021;16(4):355-369.
Okello, J.J., Nzuma, M.J., Otieno DJ, Kidoido, M., Tanga, C.M. "Farmers’ Perceptions of Commercial Insect-Based Feed for Sustainable Livestock Production in Kenya." Sustainability. 2021;13:53-59.
AM K, IA O. "A fatal case of infant oral mutilation." Contemp Clin Dent. 2021;2021; 12:76-80(2021; 12:76-80):2021; 12:76-80.
NM M, GO O. "Fibromyalgia: Reviewing the epidemiology and gender-based differences in Africa." African Journal of Rheumatology. 2021;7(1):3-7. Abstractfibromyalgia.pdf

Abstract
Objectives: Fibromyalgia is a
complex disorder which presents with
chronic widespread musculoskeletal
pain, together with other symptoms
like fatigue, sleep disturbances and
cognitive disturbance. The cause remains
unclear but it is postulated that there
are abnormalities in neurohormonal
profile and central sensitization to pain
as the main mechanism. It is known to
occur more commonly in females than
males. This study set out to look at these
differences in terms of epidemiology and
gender differences.
Data source: We conducted online and
public library searches using the English
language.
Data extraction: We reviewed several
papers and research work focusing on
epidemiology and differences in gender
presentation. The period of the search was
between the years 1990 up to 2020.
Conclusion: Fibromyalgia is a commonly
occurring rheumatologic condition.
Gender differences exist with regard to
epidemiology, clinical presentation and
health seeking behaviors. Population
based studies would be of use to establish
the prevalence in Africa. More studies
would be necessary to explain the gender
differences noted in the many aspects
of the disease including response to
treatment.
Key words: Fibromyalgia, Fibromyalgia
in women, Gender differences and impact

NM M, GO O. "Fibromyalgia: Reviewing the epidemiology and gender-based differences in Africa." African Journal of Rheumatology. 2021;7(1):3-7. Abstractfibromyalgia.pdf

Objectives: Fibromyalgia is a
complex disorder which presents with
chronic widespread musculoskeletal
pain, together with other symptoms
like fatigue, sleep disturbances and
cognitive disturbance. The cause remains
unclear but it is postulated that there
are abnormalities in neurohormonal
profile and central sensitization to pain
as the main mechanism. It is known to
occur more commonly in females than
males. This study set out to look at these
differences in terms of epidemiology and
gender differences.
Data source: We conducted online and
public library searches using the English
language.
Data extraction: We reviewed several
papers and research work focusing on
epidemiology and differences in gender
presentation. The period of the search was
between the years 1990 up to 2020.
Conclusion: Fibromyalgia is a commonly
occurring rheumatologic condition.
Gender differences exist with regard to
epidemiology, clinical presentation and
health seeking behaviors. Population
based studies would be of use to establish
the prevalence in Africa. More studies
would be necessary to explain the gender
differences noted in the many aspects
of the disease including response to
treatment.
Key words: Fibromyalgia, Fibromyalgia
in women, Gender differences and impact
of fibromyalgia

Ayieyo P, Rambo C, Ndiritu A. "Financial Effect of Labour Related Risks on Completion of PPP Projects. Advances in social sciences research journal.volume 7(10):122-130.". 2021. Abstract

Efficient management of construction works should focus its attention on utilizing labour, equipment, and raw materials in the right way. Besides, they claim that responsible parties should evaluate labour productivity continuously and that cost control measures should be developed. Low productivity witnessed in construction is linked to internal challenges including disputes, abandonment of projects, excess budget, and time overlaps. The objective of the study was to determine the financial effect of labour related risks on completion of PPP projects. A descriptive survey design was used with simple random sampling targeting 85 members of the management team at the completed Sondu-Miriu Power project. The participants were administered with questionnaire which were sent by mail (in some cases) and selected participants encouraged to respond. Data obtained was analysed through SPSS platform using descriptive statistics and Pearson Moment correlation as inferential statistics. The study found that labour related risks in construction PPP projects included failure by employees and experts to complete assigned tasks, injuries and deaths, changing labour demands during the project as well as cases of go slow. Construction labour related risks affected the financial cost, time and quality of work performed in the construction project. The study concludes that labour related risks have a financial effect on completion of PPP projects such that as the risks increase, the financial cost increases. The study recommends that more focus should be placed on the identification and recruitment of project staff as well task allocation.

Mengo WK, Munyasi MD, Mutuli MS, Mumenya WS. "Flexural Properties of Surface-Modified Sisal Fiber-Reinforced Polyester Resin Composites." Journal of Natural Fibres. 2021.
Othoo C, Dulo S, Olago D. "Flood-risk vulnerabilities of sanitation facilities in urban informal settlements: Lessons from Kisumu City, Kenya." East African Journal of Science, Technology and Innovation. 2021;2(4).
MD Wanjere, Ogutu M, Kinoti M, Iraki XN. "Foreign Direct Investment and Local firm's Performance." Advances in Management and Applied Economics. 2021;11(3):57-73. Abstract

This paper investigates the effect of FDI on performance of manufacturing firms in
Kenya. Little is documented about the link between FDI variables of capital flow,
advanced production technology, marketing expertise and management know-how
and performance of firms. The study’s sought to establish the effect of each
individual FDI variables on firm’s performance. It also sought to established the
overall effect of the performance manufacturing firms in Kenya. The population of
study comprised 100 companies registered with Kenya Association Manufacturing
as at the time of data collection in 2019 and that had over 10 percent foreign
ownership. The respondents were the CEOs of organization. The study used a
structured questionnaire to collect primary data. Descriptive and inferential
statistics were both used to analyze the data. Data was pretested for normality,
linearity, multicollinearity, autocorrelation and homoscedasticity and the data found
to meet most of these preconditions. The Pearson correlation analysis was employed
to discern not only the strength but also the direction of the interrelationships
involving the variables. The researcher tested the effect of the components of FDI
on performance of manufacturing firms. The study developed one hypothesis and
four sub hypothesis. The results revealed that there was a statistically significant
relationship between FDI and firm performance. This imply that to achieve better
firm performance, the government need to come up with policies geared to
attracting more FDI into the key sectors of the economy.

Osaaji M, Odari M, Muchiri J. "From Alterity to Agency: Pathways of Subversion and Resistance in Ngugi Wa Thiong’o’s Personal Essays." The Journal of Language, Technology & Entrepreneurship in Africa. 2021;12(1):1-16.
Maina, wanjiku. "From Vernacular to Modern: Transitioning East African Traditional House Design to Contemporary." Africa Habitat Review. 2021;14(3):2081-2093.
Etta Madete, Peirson E. "Gardens of Kibera: The Kibera Public Space Project by Kounkuey Design Initiative." The Architectural Review (2021).
SS G, G A, P A, K B, R B, G C, KJ C, ACR C, T C, YO C, D D, ML F, MO F, A G, HH H, V J, A K, SC L, P L, VP M, T M, Y M, N P, A T-M, ECM L, CH C. "Global Oral Health Policies and Guidelines: Using Silver Diamine Fluoride for Caries Control. Front Oral Health." Front Oral Health. 2021;2021; 2:685557(2021; 2:685557):2021; 2:685557.
Walter Onchere, Weke P, Ottieno J, Ogutu: C. "Graduation of Term Assurance Data using Frailty Approach." Afrika Statistika. 2021;16(3):2805-2817.
Cheserek JJ, Ngugi K, Muthomi JW, Omondi CO, Ezekiel NK. "Green bean biochemical attributes of Arabusta coffee hybrids from Kenya using HPLC and soxhlet extraction methods." Australian Journal of Crop Science . 2021;15(2):201-208 .
Mgalula ME, Wasonga OV, Hülsebusch C, and Hensel URO. "Greenhouse gas emissions and carbon sink potential in Eastern Africa rangeland ecosystems: A review." Pastoralism: Research, Policy and Practice . 2021;11(19).
Ncebere JM, Mbuthia PG, Waruiru RM, Gathumbi PK. "Gross and Histopathology of Goats Feeding on Opuntia stricta in Laikipia County, Kenya." Hindawi Veterinary Medicine International. 2021;Volume 2021(Article ID 8831996, 12 pages).
Ncebere JM, Mbuthia PG, Waruiru RM, Gathumbi PK. "Gross and histopathology of goats feeding on Opuntia stricta in Laikipia County, Kenya." Hindawi Veterinary Medicine International. 2021;2021(Article ID 8831996).
Maina, kiswili. "HAIR THEN, HAIR NOW: AFRICAN STYLING BECOMING LEISURE FOR ALL." Design For All Journal of India. 2021;16(1):112-146.
S Gachau, E Njeru Njagi, N Owuor, P Mwaniki, M Quartagno, Sarguta R, English M, Ayieko P. "Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data." Journal of Applied Statistics. 2021. AbstractWebsite

Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Ayieko, P; - view fewer (2021) Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data. Journal of Applied Statistics (In press) … This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.

S Gachau, E Njeru Njagi, N Owuor, P Mwaniki, M Quartagno, Sarguta R, English M, Ayieko P. "Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data." Journal of Applied Statistics. 2021. AbstractWebsite

Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Ayieko, P; - view fewer (2021) Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data. Journal of Applied Statistics (In press) … This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.

S Gachau, E Njeru Njagi, N Owuor, P Mwaniki, M Quartagno, Sarguta R, English M, Ayieko P. "Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data." Journal of Applied Statistics. 2021. AbstractWebsite

Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Gachau, S; Njeru Njagi, E; Owuor, N; Mwaniki, P; Quartagno, M; Sarguta, R; English, M; Ayieko, P; - view fewer (2021) Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data. Journal of Applied Statistics (In press) … This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.

Kieti RM, Ogolla W. "Hedonic valuation of apartments in Kenya." Property Management. 2021;39(1):34-53. Abstract

Emerald Publishing Limited, UK.

Peter M. F. Mbithi, Judith S. Mbau, Nzioka J. Muthama, Hellen Inyega JKM, Kala JM. "Higher education and skills development in Africa: An analytical paper on the role of higher learning Institutions on sustainable development." Journal of Sustainability, Environment & Peace. 2021;4(2):58-73.
Mbithi PMF, Mbau JS, Muthama NJ, Inyega H, Kalai JM. "Higher Education and Skills Development in Africa: An Analytical Paper on the Role of Higher Learning Institutions on Sustainable Development." Journal of Sustainability, Environment and Peace. 2021;4(2):58-73.
P.M.F. M, Mbau SJ, N.J. Muthama, Inyega H, Kalai JM. "Higher Education and Skills Development in Africa: An Analytical Paper on the Role of Higher Learning Institutions on Sustainable Development. ." Journal of Sustainable Environment and Peace, . 2021;2:55-70.
G.N. KJ, G.W. N, K.K. E. "How Safe is the Water Consumed in Different Parts of Nairobi, Kenya? International Journal of Research and Innovation in Applied Science (IJRIAS) ." International Journal of Research and Innovation in Applied Science (IJRIAS). 2021;VI(VII):ISSN 2454-6194.abstract.pdf
C. M, F. M, M. M, m O. "Human Resources Management Practices and Employee Performance at National Police Service of Kenya." International Journal of Arts and Commerce. 2021;8(9).
C. M, F. M, M. MOM. "Human Resources Management Practices, Employee Competence and Employee Performance at National Police Service of Kenya." European Jounrnal of Business and Management. 2021;13(2).
Kitonyi PM, Segera DR. "Hybrid Gradient Descent Grey Wolf Optimizer for Optimal Feature Selection." Hindawi Biomed Research International. 2021;2021(2021):1-33.
Wanja ND, Agnèse J-F, Ford AGP, Day JJ, Ndiwa TC, Turner GF, Getahun A. Identifying and conserving Tilapiine cichlid species in the twenty-first century. Springer; 2021.
Peter K, John VL, George G, Luke H, Shawn MK, Spencer G. "Impact of calf housing improvement and farmer training on finances, management and animal welfare perceptions of Kenyan smallholder dairy farmers." Journal of Development and Agricultural Economics. 2021;13(2):119-129.
Kimeli P, Vanleeuwen J, Gitau G, Heider L, McKenna S, Greenwood S. "Impact of calf housing improvement and farmer training on finances, management and animal welfare perceptions of Kenyan smallholder dairy farmers ." Journal of Development and Agricultural Economics. 2021;13(2):119-129.
Ondicho TG, Irandu E. "Impact of Corona virus (COVID-19) pandemic and Implications on Tourism Sector: The Experience in Kenya." Journal of African Interdisciplinary Studies. 2021;5(6):31-44.
Otiang E, Thumbi SM, Campbell ZA, Njagi LW, Nyaga PN, Palmer GH. "Impact of routine Newcastle disease vaccination on chicken flock size in smallholder farms in western Kenya." PLoS. 2021;16(3).
Makinya KJ, Wagacha JM, Odhiambo JA, Likhayo P, Edoh-Ognakossan K, Tefera T, Abass A, Mutungi C. "The importance of store hygiene for reducing post-harvest losses in smallholder farmers’ stores: Evidence from a maize-based farming system in Kenya." Journal of Stored Products Research. 2021;90(DOI:10.1016/j.jspr.2020.101757):101757.
Ali RT, Kunyanga CN, Ngugi K. "In-Vitro protein digestibility, physico-chemical properties and nutritional quality of sorghum-green gram cookies supplemented with mango powder." International Journal of Food and Nutrition Research. 2021;5(39).
Nyamweya NN, Lumb PN, Mujyarugamba JC, Abuga KO. "Inactive Ingredients used in Alcohol-Based Hand Sanitizers marketed in the Nairobi Metropolitan Area." PJK. 2021;25(1):17-20. Abstract

Background: Alcohol-based hand sanitizers (ABHS) have become widely used products since the advent of the SARS-CoV-2 coronavirus based COVID-19 pandemic. In addition to ethanol or isopropanol (the active ingredients of ABHS) and water, these products are formulated with a number of ingredients to optimize delivery, efficacy and safety as well as to provide consumer appeal. Despite the widespread use of ABHS, there is very limited information in the literature on the non-alcohol ingredients used in these products.
Objectives: The aim of this work was to determine the inactive ingredients used in ABHS marketed in metropolitan Nairobi.
Methodology: ABHS products were randomly obtained from several locations at retail outlets within the Nairobi metropolitan region. The ingredients used in each ABHS were obtained from the product labels.
Results: The most common inactive ingredients based on percentage frequency of listing on product labels were glycerin (50%), fragrances (36%), carbomer (26%), triethanolamine (18%) and propylene glycol (17%). It was observed that some products incorporated additional antimicrobial agents and preservatives in the formulation. The fragrances and some of the preservatives used in the ABHS products are potential allergens. Incomplete or inadequate ingredient naming was noted for several products.
Conclusions: There is a need for ABHS manufacturers to fully disclose all raw materials used in ABHS products using standardized ingredient nomenclature. ABHS users need to be aware of potential allergens present in respective marketed products.

Li WM, Li Z, Luvembe AMO, Yang C. "Influence maximization algorithm based on Gaussian propagation model." Information Sciences. 2021;568:Pages 386-402. AbstractScience Direct

The influence of each entity in a network is a crucial index of the network information dissemination. Greedy influence maximization algorithms suffer from time efficiency and scalability issues. In contrast, heuristic influence maximization algorithms improve efficiency, but they cannot guarantee accurate results. Considering this, this paper proposes a Gaussian propagation model based on the social networks. Multi-dimensional space modeling is constructed by offset, motif, and degree dimensions for propagation simulation. This space’s circumstances are controlled by some influence diffusion parameters. An influence maximization algorithm is proposed under this model, and this paper uses an improved CELF algorithm to accelerate the influence maximization algorithm. Further, the paper evaluates the effectiveness of the influence maximization algorithm based on the Gaussian propagation model supported by theoretical proofs. Extensive experiments are conducted to compare the effectiveness and efficiency of a series of influence maximization algorithms. The results of the experiments demonstrate that the proposed algorithm shows significant improvement in both effectiveness and efficiency.

Nyandega IA, Gurong T, Okello P, Ongoma V. "Influence of Convective Coupled Equatorial Kelvin Waves on March-May Precipitation over East Africa." Geogrophica Pannonica. 2021;25(1):24-34.
Wangai MM, Inyega JO, Mugambi M, Kalai JM. "INFLUENCE OF ISO 9001 STANDARDS ON QUALITY OF ACADEMIC PROGRAMMES IN UNIVERSITIES IN KENYA: A CASE OF BACHELOR OF EDUCATION PROGRAMME OF THE UNIVERSITY OF NAIROBI." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice. 2021;2(2):34-48.
Wangai M M, Inyega JO, M M, JM. K. "Influence of ISO 9001 standards on quality of academic programmes in universities in Kenya: a case of bachelor of education programme of the University of Nairobi." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice. 2(2):34-48.. 2021;2(2):34-48.
Wangai MM, Inyega JO, Mugambi MM, Kalai JM. "Influence of ISO 9001 standards on quality of academic programmes in universities in Kenya: a case of university of Nairobi." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice(ISSN: 2708-261X),. 2021;2(2):34-48.
Ndung'u M, Ngatia LW, Onwonga RN, Mucheru-Muna MW, Fu R, Moriasi DN, Ngetich KF. "The influence of organic and inorganic nutrient inputs on soil organic carbon functional groups content and maize yields." Heliyon. 2021;7(8):e07881.
T H, W KI, G. MR. "The Influence of Parental Incomes on Internal Efficiency of Public Primary Schools in Western Province-Rwanda." Journal of Humanities And Social Science (IOSR-JHSS) . 2021;26(6):06-16.
Musyoki J, J.A O. "Influence of Principals Inspirational Influence on Students Performance at Kenya Certificate of Secondary Education in Public Secondary Schools, Kenya." IOSR Journal of Humanities and Social Science 2. 2021;26(2279-0837):10.9790/0837-2605094760.
Musyoki, J.M., Kalai JM, Okoth UA, Okumbe JA. "Influence of Principals’ Inspirational motivation on Students‟ Performance at Kenya Certificate of Secondary Education in Public Secondary Schools, Kenya." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice (JPAHAP) . 2021;2(1):109-132.
Shikokoti H, Okoth UA, Chepkonga S. "Influence of Teacher delocalization policy on teacher job satisfaction in public secondary schools in Kakamega County, Kenya ." Journal of Humanities and Social Sciences. 2021;26(5):38-46.
Wangai MM, Inyega J, Mugambi M, Kalai J. "Influence of Total Quality Management and Knowledge Management on Quality of University Academic Programmes: A Literature Review." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice. 2021;2(1):1-14.
Wangai M M, Inyega J, M M, J. K. "Influence of Total Quality Management and Knowledge Management on Quality of University Academic Programmes: A Literature Review." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice. . 2021;2(1):1-14.
Wangai, M.M., Inyega, H. N., Mugambi MM, Kalai JM. "Influence of Total Quality Management and Knowledge Management on Quality of University Academic Programmes: A Literature Review." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice (JPAHAP). 2021;2(1):1-14.
Wangai MM, Inyega JO, Mugambi MM, Kalai JM. "Influence of total quality management and knowledge management on quality of university academic programmes: a literature review." Journal of Pedagogy, Andragogy and Heutagogy in Academic Practice(ISSN: 2708-261X),. 2021;2(1):1-14.
Kamau SJ, Rambo CM, Mbugua JM. "Influences of Community Participation on School Infrastructure Policy Implementation and Performance of Construction Projects. ." Open Journal of Social Sciences. 2021;2021(9):173-187.
Kaua CG, Thenya T, Mutheu JM. "Informal Microfinance and Rural Households’ Climate Variability Resilience: Analysis of their Contribution and Determinants in Tharaka South Sub-county, Kenya. ." Journal of the Kenya National Commission for UNESCO. . 2021;Vol. 1( (1) ):pp 109-144.
Makori EO, Connie B. "Information Profession in Digital Transformation and Development: Future Directions.". In: Handbook of Research on Knowledge and Organization Systems in Library and Information Science. Pennsylvania: IGI Global; 2021.
Owuor KO, Machani MG, Mukabana WR, Munga SO, Yan G, Ochomo E, Afrane YA. "Insecticide resistance status of indoor and outdoor resting malaria vectors in a highland and lowland site in Western Kenya." PLoS ONE . 2021;3(16):e0240771.
Karamshetty V, DeVries H, Wassenhove LVN, Dewilde S, Minnaard W, Ongarora D, Abuga K, Yadav P. "Inventory Management Practices in Private Healthcare Facilities in Nairobi County." Prod. Oper. Manag.. 2021;31(2):828-846. Abstract

Universal health coverage (UHC) is an integral part of the United Nations sustainable development goals. The private sector plays a prominent role in achieving UHC, being the primary source of essential medicines for many people. However, many private healthcare facilities in low‐ and middle‐income countries (LMICs) have insu_cient stocks of essential medicines. At the same time, these same facilities carry excessive quantities of certain drugs, leading to obsolescence. This suggests poor inventory control. To propose potential remedies it is vital to fully understand the underlying causes. In semi‐structured interviews with managers of private healthcare facilities in Nairobi, we asked them about their 1) inventory control systems, 2) inventory control skills, 3) time/human resource constraints, 4) budget constraints, 5) motivations for inventory control, and 6) suppliers. Our results suggest that the problems are driven by resource limitations (budget and time/human resources), managerial issues (relating to skills and systems), and market mechanisms that limit overage and underage costs. Unavailability at the supplier level and motivations for inventory control are relatively minor issues. We posit that the key causes are interlinked and stem from wider issues in the market and regulatory environment. Our results challenge prevalent beliefs about medicine supply chains in LMICs and lead to alternative hypotheses. Testing these hypotheses could improve our understanding of inventory management in private healthcare facilities and aid progress in achieving UHC.

Barasa NW, Njoroge KD, MBUYA TO. "An investigation of the effects of extraction and brushing variables on the properties of hedge sisal fibers using a raspador." Journal of Natural Fibers. 2021:In Press. Abstracthttps://doi.org/10.1080/15440478.2020.1870641

Natural fibers have emerged as an important component in the development of composite materials because of their mechanical properties. The properties are highly influenced by environmental conditions and processing techniques. This variability makes their usability in reinforcement unpredictable. There are satisfactory attempts to quantify the variation of the properties with environmental conditions. However, the quantification of how the properties vary with processing methods is unsatisfactory. This study, therefore, investigated and quantified the effects of processing variables on the properties of sisal fibers using a raspador. The raspador was designed, fabricated, and utilized in processing sisal fibers. Processing variables such as gap size, number of extraction and brushing elements, and drum speed were investigated. The mechanical properties were determined based on ASTM C1557 standard. High correlation coefficients were found between fiber properties and the processing variables. The brushing process, mostly ignored in many cases, improved the properties of the sisal fibers.

Moturi CA, Kosgei AK. "Is Kenya ready to Leverage Blockchain Technology in Horticulture Traceability?" Kenya Policy Briefs. 2021;2(1):59-60.
Mokaya TK, Omosa LK, Ogunah J, Nyamato GS. "Isolation and Characterization of Secondary Metabolites from Cola minor Stem Extracts." Tropical Journal of Natural Product Research. 2021;5(4):621-625.
Ongeri BO. "Issues of Public Debt Management in countries-A Kenyan experience." International Journal of Scientific Research and Innovative Technology . 2021;8(2).
R T. "Jinamizi la Malezi.". In: Utashi wa Dola na Hadithi Nyingine. Nairobi: Oxford University Press ; 2021.
Prof Henry Mutembei, Dr Michael Okoti DKODBKDCL’aho. Kenya Climate Smart Research for Sustainable Agriculture and Livelihoods. Naivasha Resort: Wold Bank and Kenya Government; 2021.
Imwene K.O., Mbui D.N., Mbugua J. K., Kinyua A. P., Kairigo P.K., Onyatta JO. "Kinetic Modelling of Microbial Fuel Cell Voltage Data from Market Fruit Wastes in Nairobi, Kenya." International Journal of Scientific Research in Chemistry (IJSRCH) . 2021;6(5):25-37.
Gatere AW. "The Language of Love." The Counsel-ling Magazine. 2021;1(1):33-35.the_language_of_love.pdf
I C, P S, B N, M M, JA O’o. "Laparoscopic surgery during the COVID-19 pandemic: detection of SARS-COV-2 in abdominal tissues, fluids, and surgical smoke." Langenbecks Arch Surg. 2021;406(4):1007-1014. AbstractWebsite

Abstract
Background: There are still concerns over the safety of laparoscopic surgery in coronavirus disease 2019 (COVID-19) patients due to the potential risk of viral transmission through surgical smoke/laparoscopic pneumoperitoneum.

Methods: We performed a systematic review of currently available literature to determine the presence of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) in abdominal tissues or fluids and in surgical smoke.

Results: A total of 19 studies (15 case reports and 4 case series) comprising 29 COVID-19 patients were included. The viral RNA was positively identified in 11 patients (37.9%). The samples that tested positive include the peritoneal fluid, bile, ascitic fluid, peritoneal dialysate, duodenal wall, and appendix. Similar samples, together with the omentum and abdominal subcutaneous fat, tested negative in the other patients. Only one study investigated SARS-COV-2 RNA in surgical smoke generated during laparoscopy, reporting negative findings.

Conclusions: There are conflicting results regarding the presence of SARS-COV-2 in abdominal tissues and fluids. No currently available evidence supports the hypothesis that SARS-COV-2 can be aerosolized and transmitted through surgical smoke. Larger studies are urgently needed to corroborate these findings.

"Learning to Positively Manage your Relationship with your Spouse." The Counsel-ling Magazine. 2021;1(2):40-43.
Mavuti SK, Mbaria JM, Maina JG, Mbuthia PG, Waruiru RM. "Levels of lead, mercury and cadmium in farmed Oriochromis niloticus and Clarias gariepinus in Nyeri County, Kenya." International Journal of Fisheries and Aquatic Studies. 2021;9(4):230-233.
Moturi C, Karuga E, Orwa D. "Leveraging Big Data Analytics." International Journal of Big Data Management. 2021;DOI: 10.1504/IJBDM.2021.10036720. AbstractWebsite

This paper sought to study the extent to which telecoms within Kenya have adopted Big Data analytics to gain richer and deeper insights into their business dynamics in order to facilitate evidence decision making. A descriptive research design was employed and data was collected from ten leading telecoms using semi-structured questionnaires. The study found that Big Data could stimulate the economic growth, advance the productivity and competitiveness of the telecoms, as well as generate enormous benefits for customers. The factors with the highest significant effect on the adoption of Big Data analytics were identified. The practical implication of this paper is an increased understanding on what elements can promote Big Data adoption by large telecom companies. The study is beneficial to telecoms companies and any other organisations that would be looking at adopting data driven decision making to sustain competitiveness within the present uncertain setting.

Shagwira H, Mwema FM, MBUYA TO. "Lightweight Polymer–Nanoparticle-Based Composites.". In: Nanomaterials and Nanocomposites. Boca Raton: CRC Press; 2021. Abstract

The increasing demand for eco-friendly materials in various fields including the construction industry has led to increased efforts toward the development of more materials to suit such fields. In this work, a specific review of polymer–nanoparticle-based composites is presented with an emphasis on the nano-silica reinforcements. A background on applications, processing methods, and state-of-the-art review of the subject is presented. It is noted that there is limited literature focusing on the recycling of polymers using silica nanoparticle-based reinforcements for the construction industry. Gaps in the literature are identified, and the direction for future research focus is presented.

Musyoka PK, Onjala J, Mureithi LP. "Livelihood Diversification and Household Vulnerability to Climate Shocks in Rural Kenya." Climate Change and Development. 2021.
Kaoga J, Olago D, Ouma G, Ouma G, Onono J. "Long-term spatial-temporal temperature characteristics of a pastoral ecosystem in Kajiado County, Kenya." African Journal of Agricultural Research. 2021;17(6):896-906.
Otieno, R.O, Kariuki, D.N., Wanjohi. "Loss of Pyrethrins Content during Drying of Chrysanthemum cinerariifolium Flowers in Direct Sunlight." Africa Journal of Physical Sciences. 2021;6(2):75-84.
S. R, M. P, V. O. "LP Fracturing: A Review on Waterless Fracturing Technology in Unconventional Reservoir." Journal of Scientific and Engineering Research (JSAER). 2021;8(1):48-54.
Japheth NR, Rukwaro PR, Wachira-Towey IN. "Management of Steel Reinforcement Works Procedures Impact on the Health of Workers in Building Construction Sites Case study of Nairobi County, Kenya." Journal of Entrepreneurship & Project management. 2021;Volume 5(1).
Mulei IR, Mbuthia PG, Waruiru RM, Nyaga PN, Mutoloki S, Evensen Ø&. "Management practices, farmers’ knowledge of diseased fish and their occurrence in fish farms in Nyeri County, Kenya ." Hindawi Veterinary Medicine International. 2021;2021(Article ID 8896604).
Mulei, I., Mbuthia, P.G., Waruiru, R.M., Nyaga, P. N., Mutoloki, Evensen. "Management practices, farmers’ knowledge of diseased fish and their occurrence in fish farms in Nyeri County, Kenya." Hindawi Veterinary Medicine International. 2021.
Ong’ang’a MA, Indangasi H, Kitata M. "Manipulation of Narrative Paradigm in Ngugi wa Thiong’o’s Wrestling with the Devil." Hybrid Journal of Literary and Cultural Studies. . 2021;3(1).
Munyoki, J.M., Owino, J., Ndambuki VM. Marketing in Developing Economies: Theory, Practice, and Cases with Special Focus on Africa.. Exceller Books Press, India; 2021.
Chebet ON, Omosa LK, Subramanian S, Nchiozem-Ngnitedem V-A, Mmari JO, Akutse KS. "Mechanism of Action of Endophytic Fungi Hypocrea lixii and Beauveria bassiana in Phaseolus vulgaris as Biopesticides against Pea Leafminer and Fall Armyworm." Molecules. 2021;26(26):htts://doi.org/10.3390/molecules26185694.
MD Wanjere, Iraki XN, MO Ogutu, Kinoti M. "Mediating Role of Absorptive Capacity on the Relationship between Foreign Direct Investment and Local Firm’s Performance." European Journal of Business and Management Research. 2021;6(5):256-263. Abstractmediating_role_of_absorptive_capacity_on_the_relationship_between_foreign_direct_investment_and_local_firms_performance.pdf

There is little documentation on the role of absorptive capacity on the relationship between FDI and performance of firms. This paper investigates the mediating role of absorptive capacity on the relationship between FDI and performance of manufacturing firms in Kenya. The population of study comprised 100 companies registered with Kenya Association of Manufacturers that had over 10 percent foreign ownership as at the time of data collection in 2019. The respondents were the CEOs of organization or their designated officers. The study used a structured questionnaire to collect primary data. The respondent were required to indicate how the introduction of FDI impacted on organizations capital flow, advanced production technology, marketing expertise and management knowhow. They were also to indicate the extent their Organisation had invested in absorptive capacity and the effect absorptive capacity had on the relationship between FDI and local firm performance. Descriptive and inferential statistics were both used to analyze the data. The results revealed that absorptive capacity has statistically significant mediating effect on the relationship between FDI and firm performance. This imply that an incremental change in the absorptive capacity would generate growth in company’s performance. As such Kenyan and other sub-Sahara African countries government need to come up with polices geared to supporting improvement of firms absorptive capacities so as to spur the growth of their key sectors of the economy.

Mwangi AN, Njogu PM, Maru SM, Njuguna NM, Njaria PM, Mathenge AW. "Meloxicam emulgels for topical management of rheumatic diseases: Formulation development, in vitro and in vivo characterization." Saudi Pharmaceut. Jour. 2021;29(4):351-360.

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