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Origa JO, Muchemi, L., Muthoni DM, Mutahi IW, Gunga SO. "The Implications of Collaborative Industrial Attachments for Kenya Vision 2030 Development Programmes." African Journal of Education and Technology Volume . 2013;3(1):57-67.Website
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Onyango CM, Kunyanga CN, Karanja DN, Wahome RG. " EMPLOYER PERCEPTIONS AND ATTITUDES TOWARDS AGRICULTURAL UNIVERSITY TRAINING IN KENYA ." International Journal for Innovation Education and Research . 2018;6(1):175-185.
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Otysula RM;, and Nderitu JM, Buruchara RA. " Interaction between bean Stem Maggot and Bean Root Rot and soil fertility.". In: Crop Protection Conference, . Nairobi,; 1998.
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Muthami KM, Onyambu CK, Odhiambo AO, Muriithi IM, Byakika TK. " Correlation of magnetic resonance imaging findings with arthroscopy in the evaluation of rotator cuff pathology." East African Orthopaedic Journal. 2014;8(2):52-59.
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Oyoo GO, Muia B, Otino FO, Ganda B, Otieno CF, Moots CF. " Occurrence of crystal arthropathy in patients presenting with synovitis in Nairobi." African Journal of Rheumatology. 2014;2(2):75-77. Abstract

Background: Crystal arthropathies represent a heterogeneous group of skeletal (musculo-skeletal) diseases associated with the deposition of mineralized material within joints and periarticular soft tissues. Gout is the most common and pathogenetically best understood crystal arthropathy, followed by basic calcium phosphate and calcium pyrophosphate dihydrate deposition diseases, and, in very rare cases, calcium oxalate crystal arthropathy. In Kenya there are no studies to demonstrate the prevalence of these diseases. This study endeavored to describe the different types of crystals seen in patients with synovitis in Nairobi from 1st January 2012 to 31st January 2014.
Objective: To describe different types of crystals seen in patients with synovitis in Nairobi.
Design: Descriptive prospective cross sectional study.
Results: There were 260 samples received from patients with synovitis. Of them, 61 (23.5%) were from males while 199 (76.5%) were from females. The age range of the patients was from 14 – 110 years. The mean, median and mode were 59.6, 60 and 55 years respectively. Majority of the patients were in the 51-60 years age category. Most of the patients recruited had no crystals (n=211; 81.2%)
diagnosed, with 14.2%(n=37) having uric acid crystals and 4.6 % (n=12) having CPPD crystals. For the patients who had uric acid crystals (n=37), when gender was cross tabulated against microscopy, males (n=32; 86.5%) were noted to have more uric acid crystals than females (n=5;
13.5%). Among patients diagnosed with CPPD (n=12), there were more females (n=9; 75%) patients compared to males (n=3; 25%). From the total population recruited (n=260), when age range categories were cross tabulated against microscopy, the age ranges 41-50 (n=9; 3.5%) 51-60 (n=12; 4.6%), and 61-70 (n=6; 2.3%) were noted to have more uric acid crystals than any other age category recruited. Patients in the age category 61-70 (n=6; 50 %) had more CPPD crystal detections than any other age category from the patients recruited.
Conclusion: Crystal arthropathy is a major cause of synovitis in patients seen in Nairobi.

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Opanga SA, Mulaku MN, Okalebo FA, Mwang’ombe NJ, Kuria KAM. " Systematic Review, Meta-Analysis and Grading of Evidence on the Effectiveness of Antimicrobial Prophylaxis for Neurosurgical Site Infections." African Journal of Pharmacology and Therapeutics . 2017;Vol. 6(No. 1 , February 2017 ):Pages 1-13.
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Araka E, Oboko R, Maina E, Gitonga RK. " A Conceptual Educational Data Mining Model for Supporting Self-Regulated Learning in Online Learning Environments." https://www.igi-global.com/. 2021:15. Abstract

Self-regulated learning is attracting tremendous researches from various communities such as information communication technology. Recent studies have greatly contributed to the domain knowledge that the use self-regulatory skills enhance academic performance. Despite these developments in SRL, our understanding on the tools and instruments to measure SRL in online learning environments is limited as the use of traditional tools developed for face-to-face classroom settings are still used to measure SRL on e-learning systems. Modern learning management systems (LMS) allow storage of datasets on student activities. Subsequently, it is now possible to use Educational Data Mining to extract learner patterns which can be used to support SRL. This chapter discusses the current tools for measuring and promoting SRL on e-learning platforms and a conceptual model grounded on educational data mining for implementation as a solution to promoting SRL strategies.

Olali T. "" A Critical Exposition of Jihad Trope as a Religious Philosophy in the Epic of Rasi'l Ghuli (1850-1855).". In: African Literature Association. Yale University, New Haven, Connecticut; 2017.
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Mutuku MW, Brianna R Beechler, Ibrahim N Mwangi, Otiato FO, Horace Ochanda B. " A Search for Snail-Related Answers to Explain Differences in Response of Schistosoma mansoni to Praziquantel Treatment among Responding and Persistent Hotspot Villages along the Kenyan Shore of Lake Victoria." The American journal of tropical medicine and hygiene. 2019:tpmd190089.
Kamunya SM, Oboko RO, Maina EM, Miriti EK. " A Systematic Review of Gamification Within E-Learning." igi-global.com. 2021:18. AbstractWebsite

The focus of this study was to review and evaluate the effectiveness of gamification within e-learning platforms. The study deployed systematic literature review methodology to evaluate how effective gamification has been used within e-learning platforms. The study used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Approach (PRISMA), starting with 366 articles, shifting to a final 34 articles for consideration. It was established that gamification positively influences and enhances learning within the e-learning platform. Therefore, the study recommends policy makers, designers, and implementers of e-learning platforms to consider incorporating gamification elements in order to increase user motivation and engagement for enhanced learning.

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Olali T. "" Alawiyya Sufism and the Sufi: Diffusion and Counter-Diffusion of Swahili Islamic Mysticism in the Lamu Archipelago, Kenya"." International Journal of Humanities Social Sciences and Education. 2014;1(12):1-11.
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Ochieng P, Mcligeyo S.O KJK. " Amphotericin B nephrotoxicity in HIV infected patients at The Kenyatta national Hospital. ." East African Medical Journal . 2009;86(9).
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Odada EO, Olago DO. " An inter-basinal comparison of the sedimentology of Late Holocene to recent sediments in the Rift Valley, Lake Turkana, Kenya. ." Journal of African Earth Sciences. 2000; vol. 31(issue 2 ):237-252. AbstractWebsite

Grain size variations, sediment chemistry and general mineralogical assemblages of sediments in Lake Turkana reflect provenance. Allogenic sediments in Lake Turkana are mainly supplied by the Omo and Kerio-Turkwel Rivers. Minor inputs are from seasonal streams and strong southeasterly winds. The depth profiles of the grain size distributions in lake sediment cores exhibit enantiomorphism, which is interpreted as being diagnostic both of shifts in the equilibrium energy regime of the transporting media and of the dominant provenance of particular size grades within the specific basins of the lake. The North Sub-basin is dominated by fine-grained sediments, which reflect the texture of the volcanic rocks of the Omo River drainage basin. The Central Sub-basin sediments reflect, as sources, the coarser metamorphic terrane of the Kerio-Turkwel Rivers drainage basin. Kaolinite and fine-grained iron oxides are brought into the lake mainly by the two large fluvial input systems: the Omo River in the North Sub-basin and the Kerio-Turkwel Rivers in the Central Sub-basin. Some fine-grained overflow of this material makes its way into the South Sub-basin. Illite in the North and Central Sub-basins is strongly related to transport of material from near-shore sediments and, in the Central Sub-basin and northern reaches of the South Sub-basin, from the Kerio and Turkwel Rivers input. Smectite and calcite are mainly authigenic. In the South Sub-basin, however, the relatively coarser detrital particles are derived from silt and sand-sized in situ biogenic (calcitic and siliceous) debris and æolian-transported particles from regions southeast of the lake. The æolian fraction accounts largely for the ubiquitous and distinct very fine sand size grade, and consists of quartz, feldspar and blue-green amphiboles.

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Arimi SM;, Koroti E;, Kang'ethe EK;, Omore AO;, McDermott JJ;, Macharia JK;, Nduhiu JG;, Githua AM. " Arimi, S.M; Koroti, E; Kang'ethe, E.K; Omore, A.O; McDermott, J.J; Macharia, J.K; Nduhiu, J.G; Githua, A.M ."; 2000. Abstract

E. coli 0157:H7 is a newly recognised bacterial zoonosis that originates from the gut of infected cattle. It causes potentially fatal haemorrhagic enteritis, haemolytic uraemic syndrome and kidney damage in humans. Epidemiological data on E. coli 0157:H7 infection and transmission in developing countries remain scarce but it is suspected that consumption of unpasteurised milk is an important vehicle for its transmission to humans, as milk can easily be contaminated with cattle faeces during milking. Given the high proportion of informal sales of unpasteurized milk in many tropical countries, E. coli 0157:H7 has been one of several zoonoses of concern. Between January 1999 and January 2000, survey data and raw milk samples were collected seasonally from households consuming unpasteurised milk in rural and urban locations in central Kenya. Respondents were randomly selected within production system (extensive and intensive) and human population density (urban, peri-urban and rural) strata. Laboratory samples were assessed for bacteriological quality by total and coliform counts. Selective media were used sequentially to screen for faecal coliforms and E. coli 0157:H7. Suspect E. coli 0157:H7 colonies were also serotyped and tested for production of verocytotoxins. E. coli was recovered from 91 out of 264 samples (34%) and E. coli 0157:H7 serotype identified in two samples (<1%). One of the two isolates produced verocytotoxins. As in many studies, the recovery rate of this serotype was low, but the finding is significant from a public health perspective. Our consumer studies have shown that over 95% of consumers of unpasteurised milk boil the milk before consumption and potential health risks from this zoonosis are therefore quite low. As informal milk markets without pasteurisation technology are likely to remain dominant for the foreseeable future, there is the need to further emphasise the importance of boiling raw milk before consumption, especially among pastoral communities where this practice is not common

Okoth S. " Authors." Journal of Biology, Agriculture and Healthcare. 2015:16-21. Abstractkiamabudambulaetal2015.pdf

Application of Fungi for effective removal of hydrocarbon contamination from soil is being considered as the better option when it comes to biodegradation. Other method like physical and chemical bioremediation leads to production of toxic compounds and these methods are not cost effective. In the present study, soil samples from four different oil contaminated soils were assessed for any recovery of fungi present. Cultural characterization was used as preliminary identification using keys. Initial isolation from the oil contaminated soil was done using potato dextrose agar. Colonies were observed and characterized morphologically. The isolates were grown at varied temperatures and pH. Eight fungal isolates were recovered from polluted soils namely, Trichoderma viride, Trichoderma spirale, Neosartorya pseudofischeri, Neosartorya aureola, Aspergillus flavus, Aspergillus terreus, Penicillium griseofulvum and Trichoderma longibrachiatum. The optimum growth temperature range for the eight fungi was 30 o C and 40 o C. There was no growth at 50 o C for all isolates except some slight growth by Aspergillus flavus. Optimum growth at pH 7 and pH 9 and poor growth at pH 5 was noted. This study will contribute to the database on locally available fungal diversity and their ecology.

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Ongolly FK, Bukachi SA. " Barriers to men’s involvement in antenatal and postnatal care in Butula, western Kenya. ." African Journal of Primary Health Care & Family Medicine . 2019;11(1):a1911.
Oyugi CCA. Bereavement Counseling for children . Nairobi: Uzima Press; 2007.
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Onifade TB, Wandiga SO, Bello IA, Jekanyinfa SO, Harvey PJ. " Conversion of lignocellulose from palm (Elaeis guineensis) fruit fibre and physic (Jatropha curcas) nut shell into bio-oil Conversion of lignocellulose from palm (Elaeis guineensis) fruit fibre and physic (Jatropha curcas) nut shell into bio-oil." African Journal of Biotechnology,. 2017;16(46):2167-2180. Abstractdoi. org

Harmful gases are released into the atmosphere through burning of residues which is commonly practiced in Nigeria and can be attributed to climate change issues. Agricultural residues have the potentials to be used as energy and chemical source and meet its deficit in the country. This paper focuses on utilization of lignocellulosic materials obtained from two agricultural residues through renewable technology to produce bio-energy and chemical feedstock. The lignocellulosic materials were extracted from palm fruit (Elaeis guineensis) fibre and physic nut (Jatropha curcas) shell, and pyrolyzed under low temperature and pressure at various particle sizes. The main properties of solid (lignocellulosic) materials were tested and the bio-oil produced was analyzed using GC-MS. Results show proximate analyses (volatile, ash and fixed carbon contents) and ultimate analysis (carbon, oxygen, nitrogen, magnesium, phosphorus and zinc). The pH value of the bio-oil from both residues increased with increase in temperatures. The density, viscosity and calorific value of the palm and physic residue oil are 831.99 and 947.5 kg/m3, 0.695 and 1.58 cPa at room temperature, 22.33 and 14.169 kJ/g, respectively. Aromatics and other compounds are major dominant compounds in the palm fruit fibre oil which is characterized for bio-fuel production. Physic nut shell oil contains aromatic ethers, cyclic ethers, secondary amides and organic halogen compound which are important chemical feedstock. Conversion of these residues to useful products will alleviate the energy supply deficit, improve social and economic development, promote clean and healthy atmosphere of the nation and significantly contribute to global climate change mitigation.

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O M’ligeyoS. " Emerging alternatives to autologous blood transfusions. ." East African Medical Journal . 2002;78(1):561-563.
Olali T. "" English Drama Get Lost! A Concise History and Exploration of the Development of the Kiswahili Drama since 1957 to 2014".". In: Rethinking Diversity in African Socities and Cultures: Beyond Homogeneous Boundaries. Hankuk University of Foreign Studies, Seoul; 2016.
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OBAE MOSOTI ROSE NYABOKE. " HEADTEACHERS AND TEACHERS PERCEPTIONS TOWARDS THE CHARACTERISTICS OF DROPOUTS AMONG PUPILS IN UPPER PRIMARY IN NAIROBI PROVINCE.". In: Maseno Journal of Education, Art and Science Vol. No.1. Opuscula Mathematica,; 2013.thesis_abstract.doc
Olali T. "" I regret the death of the Swahili esoteric novel: Is it real, evolving or in a perpetual oscillation?"." International Journal of Foreign Studies. 2015;Vol.8(2):23-38.
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Mbithi LM, Okelo JA, Kiriti-Nganga TW. " Jounce of the African Women Studies Centre, Vol. 2.". In: WTO chair vol 2: Trade discourse in Kenya: Some topical issues V ol. 2.; 2012.
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Mwaniki SW;, Nderitu JH;, Olubayo F;, Kimenju JW. " Major insects of crops in Kenya.". In: 9th Triennial Symposium for International Society for Tropical Root and Tuber crops- Africa Branch, 31st October .; 2004.
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O MS. " Pain management in Kidney Diseases. ." Health Line.. 2002;6(4):56-60.
Mutiso SK, Kibett K, Obara J. " Perceptions of Agriculture Teachers toward the Integration of Adaptation Strategy Topics on Climate Change in Secondary School Agriculture Syllabus in Machakos County, Kenya." International Organization of Scientific Research- Journal of Research Method in Education (IOSR-JRME) . 2014;4(5):1-15.Website
Inwani I, Nduati R, Obimbo E, Obimbo E, Wamalwa D, G J-S, Farquhar C. " Performance of clinical algorithms for HIV-1 diagnosis and antiretroviral initiation among HIV-1-exposed children aged less than 18 months in Kenya." J Acquir Immune Defic Syndr. 2009 Apr 15;50(5):492-8. doi: 10.1097/QAI.0b013e318198a8a4.. 2009. Abstract

Abstract
BACKGROUND:
Ninety percent of HIV-1-infected children live in sub-Saharan Africa. In the absence of diagnosis and antiretroviral therapy, approximately 50% die before 2 years.
METHODS:
We evaluated sensitivity and specificity of clinical algorithms for diagnosis of HIV-1 infection and antiretroviral therapy initiation among HIV-1-exposed children aged less than 18 months. Children were identified with routine HIV-1 testing and assessed using 3 sets of criteria: (1) Integrated Management of Childhood Illnesses (IMCI), (2) World Health Organization Presumptive Diagnosis (WHO-PD) for HIV-1 infection, and (3) CD4 T-lymphocyte cell subsets. HIV-1 infection status was determined using DNA polymerase chain reaction testing.
FINDINGS:
A total of 1418 children (median age 5.4 months) were screened for HIV-1 antibodies, of whom 144 (10.2%) were seropositive. Of these, 134 (93%) underwent HIV-1 DNA testing and 80 (60%) were found to be HIV-1 infected. Compared with HIV-1 DNA testing, sensitivity and specificity of the IMCI criteria were 19% and 96% and for WHO-PD criteria 43% and 88%, respectively. Inclusion of severe immune deficiency determined by CD4% improved sensitivity of IMCI and WHO-PD criteria to 74% and 84%, respectively; however, specificity declined to 43% and 41%, respectively.
INTERPRETATION:
Diagnosis of HIV-1 infection among exposed children less than 18 months in a high-prevalence resource-limited setting remains a challenge, and current recommended algorithms have low sensitivity. This underscores the need for rapid scale-up of viral assays for early infant diagnosis.

Olali T. "" Pilgrimage, Ceremony and Carnival: The Hybridization of the Lamu Maulidi Festival"." International Research Journal. 2015;9(40):69-75.
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Ogeng'o J, Gakuu LN, Saidi H, Ongeti KW, Pulei A. " Prolapsed Intervertebral Disc In An African Population: Kenyan Experience." East African Orthopaedic Journal. 2012;6. Abstractprolapsed_intrevertebral_disk_in_an_african_population__kenyan_experience.pdf

Background: Characteristics of Prolapsed Intervertebral Disc (PID) in Africa, reports are scanty and
often disparate.
Objectives: To evaluate the distribution of PID by location, age, gender and predisposing factors among
African patients at our hospital, the largest regional referral and teaching hospital in Kenya.
Patients and Methods: Six hundred and three cases (267 males, 336 females) of prolapsed intervertebral
disc over 11 years between January 1997 and December 2007 were analyzed for location, number of
prolapsed disks, gender, age and predisposing conditions.
Results: Of the determined locations L4/5 was the commonest (42.3%), followed by L5/S1 (25.5%).
Seventy seven (20.9%) of the patients had multiple prolapsed disks. 1.4% were in the cervical region,
and only one in the thoracic. PID was commonest in the 31 – 50 year age group females (M: F is 1:1.26,
p=0.00), with mean age 40.90+13.80 years, (range between 11- 85 years).
Conclusions: PID in Kenya is commonest in the lower lumbar region of young people more in females
and is associated with trauma.

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Kotikot T, Ndalamia J, OGUTU H, B Nyaoke, MW MUREITHI, Farah B, C Perciani, Mac Donald K, Anzala O, Jaoko W. " Reproductive Tract Infections Among Low Risk Women Attending KAVI-VZV 001 Study in Nairobi, Kenya. AIDS RESEARCH AND HUMAN RETROVIRUSES ."; 2016.
Opiyo R, Muketha S, Omollo W, Mwaniki D. " Responsive Infrastructure and Service Provision Initiatives Framing Smart Environment Attainment in Nairobi.". In: Smart Environment for Smart Cities. Singapore: Springer; 2019.
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Odada E, Zalasiewicz J, Williams M, Waters CN, Barnosky AD, et al. " Scale and diversity of the physical technosphere: A geological perspective." The Anthropocene Review. 2017;4(1):9-22. AbstractFull Text

We assess the scale and extent of the physical technosphere, defined here as the summed material output of the contemporary human enterprise. It includes active urban, agricultural and marine components, used to sustain energy and material flow for current human life, and a growing residue layer, currently only in small part recycled back into the active component. Preliminary estimates suggest a technosphere mass of approximately 30 trillion tonnes (Tt), which helps support a human biomass that, despite recent growth, is ~5 orders of magnitude smaller. The physical technosphere includes a large, rapidly growing diversity of complex objects that are potential trace fossils or ‘technofossils’. If assessed on palaeontological criteria, technofossil diversity already exceeds known estimates of biological diversity as measured by richness, far exceeds recognized fossil diversity, and may exceed total biological diversity through Earth’s history. The rapid transformation of much of Earth’s surface mass into the technosphere and its myriad components underscores the novelty of the current planetary transformation.

Olali T. "" Some Impediments in the Adoption and Use of Computer Technology at the University of Nairobi" ." International Journal of Humanities, Social Sciences and Education. 2014;1(11):38-44.
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Agwanda A, Odipo G. " The Issue of non-numeric Responses to Questions on Desired family Size.". In: Population Association of Kenya. Garden Hotel Machakos Kenya: E Afr Med J; 2002. Abstract

Demography India 32 (2): 26-32

Olali T. "" Trends and Development of the Swahili Drama Since 1957 to 2014"." International Journal of Humanities Social Sciences and Education. 2015;2(10):1-7.
Olali T. "" Using Idiomatic Expressions as Rhetoric: A Strategy Towards Acculturation by Kenyan Students in China"." International Journal of Humanities, Social Sciences and Education. 2014;1(11):38-44.
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Opwora AS, Laving AM, Nyabola LO OJM. " Who is to blame? Perspectives of caregivers on barriers to accessing healthcare for the under-fives in Butere District, Western Kenya. ." BMC Public Health. 2011 May 3;11:272. doi: 10.1186/1471-2458-11-272. 1.. 2011. Abstract

Abstract
BACKGROUND:
Kenya, like many developing nations, continues to experience high childhood mortality in spite of the many efforts put in place by governments and international bodies to curb it. This study sought to investigate the barriers to accessing healthcare services for children aged less than five years in Butere District, a rural district experiencing high rates of mortality and morbidity despite having relatively better conditions for child survival.
METHODS:
Exit interviews were conducted among caregivers seeking healthcare for their children in mid 2007 in all the 6 public health facilities. Additionally, views from caregivers in the community, health workers and district health managers were sought through focus group discussions (FGDs) and key informant interviews (KIs).
RESULTS:
Three hundred and ninety-seven respondents were surveyed in exit interviews while 45 respondents participated in FGDs and KIs. Some practices by caregivers including early onset of child bearing, early supplementation, and utilization of traditional healers were thought to increase the risk of mortality and morbidity, although reported rates of mosquito net utilization and immunization coverage were high. The healthcare system posed barriers to access of healthcare for the under fives, through long waiting time, lack of drugs and poor services, incompetence and perceived poor attitudes of the health workers. FGDs also revealed wide-spread concerns and misconceptions about health care among the caregivers.

CONCLUSION:
Caregivers' actions were thought to influence children's progression to illness or health while the healthcare delivery system posed recurrent barriers to the accessing of healthcare for the under-fives. Actions on both fronts are necessary to reduce childhood mortality.

Oduori, M; Mbuya T. " Wire Rope Selection for Manual Winch Application.". 2009. Abstract

The purpose of this paper is to demonstrate the application of analytical decision making during the selection of engineering entities in an engineering design setting. The paper develops a quantitative method for wire rope selection and uses handbook data to demonstrate the use of the method in selecting a suitable type and size of wire rope for the hoisting/hauling mechanism of a hypothetical manual winch. Wire rope data can be processed into forms that are more readily useable in a quantitative selection method. Moreover, computer software such as Microsoft Excel may be used in the selection process, so long as the data are in suitable form. The selection of engineering entities often occurs in engineering design processes. An information processing approach to wire rope selection has been developed and demonstrated. The method demonstrated in this paper should be applicable in other situations in which a need for the selection of engineering entities arises.

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Kasina, M.J., Waturu C;, Nderitu J;, and Nyamasyo G, Olubayo F. "(Companion cropping as an Integrated Pest Management(IPM) component for management of thrips in French beans(Phaseolus vulgaris L.).". In: KARI Scientific Conference, Nairobi,. Nairobi; 2002.
OKECH MROWITIMAURICED. "(with Kivutha Kibwana and Smokin Wanjala) The Anatomy of Corruption in Kenya: Legal, Political and Socio-Economic Perspectives (Nairobi, Claripress), 32-92.". In: Victoria Walter and Debbie Betts (eds), Safeguarding Human Rights in Eastern Africa (FES, Kampala), 77. Rao, W. O., Ogonji, J. A.. and Aywa, S.; 1996. Abstract
PIP: This research report studies several biochemical and histochemical aspects of cervical carcinoma and explores their use in follow-up of patients undergoing radiotherapy. Material came from 19 patients with invasive cervical carcinoma admitted to Kenyatta National Hospital. A control group consisted of 20 women matched for age who attended clinics at the hospital but were not suffering from any malignant disease; control tissue for histological examination was obtained from 3 women who had undergone hysterectomy for uterine fibroids. Biochemical assays for alkaline and acid phosphatases in patients with cervical carcinoma show an increase in alkaline phosphatase in carcinomatous tissue (35.7 umoles/hr/mg) as opposed to normal tissue (7.2). Acid phosphatase values were only moderately raised. Assays of the same enzymes in blood showed a less marked difference between patients and controls (ranges of 7.5-20.8 and 3-14, respectively). When examined histochemically, increased alkaline phosphatase activity was observed in connective tissue, epithelium of the glands and blood capillaries of tumor tissue. 1 section containing normal tissue bordering carcinomatous tissue demonstrated normal alkaline phosphatase activity in the normal tissue and increased activity in the tumor tissue. In summary, there is increased enzyme activity around the tumor areas, but values for serum levels show an overlap of normal and abnormal cases and are therefore not predictive. Results demonstrate a clear difference in activities of these enzymes in carcinomatous tissue and normal tissue, which may be of value in follow-up care.
OKECH MROWITIMAURICED. "(with Kivutha Kibwana): Good Governance and Accountability in Kenya: The Next Step Forward (Nairobi, Claripress).". In: Victoria Walter and Debbie Betts (eds), Safeguarding Human Rights in Eastern Africa (FES, Kampala), 77. Rao, W. O., Ogonji, J. A.. and Aywa, S.; 1994. Abstract
PIP: This research report studies several biochemical and histochemical aspects of cervical carcinoma and explores their use in follow-up of patients undergoing radiotherapy. Material came from 19 patients with invasive cervical carcinoma admitted to Kenyatta National Hospital. A control group consisted of 20 women matched for age who attended clinics at the hospital but were not suffering from any malignant disease; control tissue for histological examination was obtained from 3 women who had undergone hysterectomy for uterine fibroids. Biochemical assays for alkaline and acid phosphatases in patients with cervical carcinoma show an increase in alkaline phosphatase in carcinomatous tissue (35.7 umoles/hr/mg) as opposed to normal tissue (7.2). Acid phosphatase values were only moderately raised. Assays of the same enzymes in blood showed a less marked difference between patients and controls (ranges of 7.5-20.8 and 3-14, respectively). When examined histochemically, increased alkaline phosphatase activity was observed in connective tissue, epithelium of the glands and blood capillaries of tumor tissue. 1 section containing normal tissue bordering carcinomatous tissue demonstrated normal alkaline phosphatase activity in the normal tissue and increased activity in the tumor tissue. In summary, there is increased enzyme activity around the tumor areas, but values for serum levels show an overlap of normal and abnormal cases and are therefore not predictive. Results demonstrate a clear difference in activities of these enzymes in carcinomatous tissue and normal tissue, which may be of value in follow-up care.
OKECH MROWITIMAURICED. "(with Lawrence Mute, Geoffrey Njeru, and Peter Wanyande) (Nairobi, Civic Education for Marginalised Communities (CEDMAC), Constitution and Reform Education Consortium (CRECO), Ecumenical Civic Education Programme (ECEP) and Gender Consortium (GC)).". In: Victoria Walter and Debbie Betts (eds), Safeguarding Human Rights in Eastern Africa (FES, Kampala), 77. Rao, W. O., Ogonji, J. A.. and Aywa, S.; 2001. Abstract
PIP: This research report studies several biochemical and histochemical aspects of cervical carcinoma and explores their use in follow-up of patients undergoing radiotherapy. Material came from 19 patients with invasive cervical carcinoma admitted to Kenyatta National Hospital. A control group consisted of 20 women matched for age who attended clinics at the hospital but were not suffering from any malignant disease; control tissue for histological examination was obtained from 3 women who had undergone hysterectomy for uterine fibroids. Biochemical assays for alkaline and acid phosphatases in patients with cervical carcinoma show an increase in alkaline phosphatase in carcinomatous tissue (35.7 umoles/hr/mg) as opposed to normal tissue (7.2). Acid phosphatase values were only moderately raised. Assays of the same enzymes in blood showed a less marked difference between patients and controls (ranges of 7.5-20.8 and 3-14, respectively). When examined histochemically, increased alkaline phosphatase activity was observed in connective tissue, epithelium of the glands and blood capillaries of tumor tissue. 1 section containing normal tissue bordering carcinomatous tissue demonstrated normal alkaline phosphatase activity in the normal tissue and increased activity in the tumor tissue. In summary, there is increased enzyme activity around the tumor areas, but values for serum levels show an overlap of normal and abnormal cases and are therefore not predictive. Results demonstrate a clear difference in activities of these enzymes in carcinomatous tissue and normal tissue, which may be of value in follow-up care.
OKECH MROWITIMAURICED. "(with William Mbaya) 'Public Order and Preservation of Public Security Law', Smokin Wanjala and Kivutha Kibwana (eds): Democratization and Law Reform in Kenya (Nairobi, Claripress) Report (ed) (Nairobi, Institute for Education in Democracy.". In: Victoria Walter and Debbie Betts (eds), Safeguarding Human Rights in Eastern Africa (FES, Kampala), 77. Rao, W. O., Ogonji, J. A.. and Aywa, S.; 1997. Abstract
PIP: This research report studies several biochemical and histochemical aspects of cervical carcinoma and explores their use in follow-up of patients undergoing radiotherapy. Material came from 19 patients with invasive cervical carcinoma admitted to Kenyatta National Hospital. A control group consisted of 20 women matched for age who attended clinics at the hospital but were not suffering from any malignant disease; control tissue for histological examination was obtained from 3 women who had undergone hysterectomy for uterine fibroids. Biochemical assays for alkaline and acid phosphatases in patients with cervical carcinoma show an increase in alkaline phosphatase in carcinomatous tissue (35.7 umoles/hr/mg) as opposed to normal tissue (7.2). Acid phosphatase values were only moderately raised. Assays of the same enzymes in blood showed a less marked difference between patients and controls (ranges of 7.5-20.8 and 3-14, respectively). When examined histochemically, increased alkaline phosphatase activity was observed in connective tissue, epithelium of the glands and blood capillaries of tumor tissue. 1 section containing normal tissue bordering carcinomatous tissue demonstrated normal alkaline phosphatase activity in the normal tissue and increased activity in the tumor tissue. In summary, there is increased enzyme activity around the tumor areas, but values for serum levels show an overlap of normal and abnormal cases and are therefore not predictive. Results demonstrate a clear difference in activities of these enzymes in carcinomatous tissue and normal tissue, which may be of value in follow-up care.
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Mbugua SN, Sibuyi NRS, Njenga LW, Odhiambo RA, Wandiga SO, Meyer M, Lalancette RA, Onani MO. ") New Palladium(II) and Platinum(II) Complexes Based on Pyrrole Schiff Bases: Synthesis, Characterization, X‑ray Structure, and Anticancer Activit." ACS Omega . 2020;XXXX(XXXX):XXXX. Abstract

: New palladium (Pd)II and platinum (Pt)II complexes (C1−C5) from the Schiff base ligands, R-(phenyl)methanamine (L1), R-(pyridin-2-yl)methanamine (L2), and R-(furan2-yl)methanamine (L3) (R-(E)-N-((1H-pyrrol-2-yl) methylene)) are herein reported. The complexes (C1−C5) were characterized by FTIR, 1H and13C NMR, UV−vis, and microanalyses. Single-crystal X-ray crystallographic analysis was performed for the two ligands (L1−L2) and a Pt complex. Both L1 and L2 belong to P21/n monoclinic and P-1 triclinic space systems, respectively. The complex C5 belongs to the P21/c monoclinic space group. The investigated molar conductivity of the complexes in DMSO gave the range 4.0−8.8 μS/cm, suggesting neutrality, with log P values ≥ 1.2692 ± 0.004, suggesting lipophilicity. The anticancer activity and mechanism of the complexes were investigated against various human cancerous (Caco-2, HeLa, HepG2, MCF-7, and PC-3) and noncancerous (MCF-12A) cell lines using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Apopercentage assays, respectively. C5 demonstrated strong DNA-binding affinity for calf thymus DNA (CTDNA) with a binding constant of 8.049 × 104 M−1. C3 reduced cell viability of all the six cell lines, which included five cancerous cell lines, by more than 80%. The C5 complex also demonstrated remarkably high selectivity with no cytotoxic activity toward the noncancerous breast cell line but reduced the viability of the five cancerous cell lines, which included one breast cancer cell line, by more than 60%. Further studies are required to evaluate the selective toxicity of these two complexes and to fully understand their mechanism of action.

Onsomu Z, Kaijage E, Aduda J, Iraya C. "), Demographics and Investor Biases at the Nairobi Securities Exchange, Kenya." International Journal of Arts and Commerce. 2017;6(15):51-60.
Muriithi JG, Nyagah G, Okoth UA. "). Influence of teachers’ communication strategies on students’ discipline in Public secondary schools in Mukurweni District." International journal of social sciences and Education (IJSSE). 2016;5(4):241-250.
Nguta, CM, WO O, Onyari, Onyiego. "). Levels of Selected Heavy Metals & Fluoride in water around Fluorspar Factory in Kerio Valley, Kenya." Kenya J Sci Tech Inn. . 2010;1:12-22.
Otsyina H, Nguhiu J, E M, Mbuthia, P.G., W O. "): Clinical manifestations in sheep with plastic bags in the rumen." Ghana Journal of Agricultural Science. 2016;51.
Otsyina H, Nguhiu J, E M, Mbuthia, P.G., W O. "): Clinical manifestations in sheep with plastic bags in the rumen." Ghana Journal of Agricultural Science. 2016;51. Abstract
n/a
,
Debrah I, Afrane YA, Amoah LE, Ochwedo KO, Mukabana WR, Zhong D, Zhou G, Lee M, Onyango SA, Magomere EO, Atieli HE, Githeko AK, Yan G. ", Larval ecology and bionomics of Anopheles funestus in highland and lowland sites in western Kenya." PLoS ONE . 2021;16(10):e0255321.
Tara, Bartlett Leslie, W. A, Okoth U. , ICT in Education Impact Study 2012-2013 Report. The Earth Institute, Columbia University; 2015.
Olwendo OJ, Yosuke Y, Cilliers PJ, Baki P, Chigomezyo MN, Mito C. ", A study on the response of the Equatorial Ionization Anomaly over the East Africa sector during the geomagnetic storm of November 13, 2012." . Advances in Space Research. 2015;55(12):2863-2872.
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OTIENO MROLWALTHOMAS. "- Olwa et al (2006a) considers a multidimensional timing phase shift as a vector within a transmitted time frame. The timing shift vector is modelled as a random walk. A combined discrete polyphase matched filter and iterative turbo receiver outputs are u.". In: Faculty of Veterinary Medicine Biennial Scientific Conference November 2004, Nairobi. Journal of Applied Biosciences; 2006. Abstract
Hydro-distilled volatile oils from the leaves of Ocimum gratissimum L. (Lamiaceae) from Meru district in Eastern Kenya were analysed by gas chromatography-mass spectrometry (GC-MS) and also evaluated for antimicrobial activity. The oil was dominated by monoterpens which accounted for 92.48%. This monoterpene fraction was characterized by a high percentage of eugenol (68.8%). The other major monoterpenes were methyl eugenol (13.21%), cis-ocimene (7.47%), trans-ocimene (0.94%), β-pinene (1.10%) and camphor (0.95%). The sesquiterpenes present in fairly good amounts were germacrene D (4.25%) and trans-caryophyllene (1.69%). The minor sesquiterpenes were α-farnesene (0.85%) and β-bisabolene (0.74%). The antimicrobial activities of the essential oils were evaluated against both Gram positive (Staphylococcus aureus, Bacillus spp.) and Gram negative (Escherichia coli, Pseudomonas aeruginosae, Salmonella typhi, Klebisiella pneumoniae, Proteus mirabilis) bacteria and a pathogenic fungus Candida albicans. The oil had pronounced antibacterial and antifungal activities on all the microbes.
OTIENO MROLWALTHOMAS. "- Olwal et al, (2005) proposes a synchronous digital receiver that implements a timing phase shift estimator incorporated after a free running sampling circuit. The timing phase shift estimator is designed by combining a discrete root raised cosine matche.". In: Faculty of Veterinary Medicine Biennial Scientific Conference November 2004, Nairobi. Journal of Applied Biosciences; 2005. Abstract
Hydro-distilled volatile oils from the leaves of Ocimum gratissimum L. (Lamiaceae) from Meru district in Eastern Kenya were analysed by gas chromatography-mass spectrometry (GC-MS) and also evaluated for antimicrobial activity. The oil was dominated by monoterpens which accounted for 92.48%. This monoterpene fraction was characterized by a high percentage of eugenol (68.8%). The other major monoterpenes were methyl eugenol (13.21%), cis-ocimene (7.47%), trans-ocimene (0.94%), β-pinene (1.10%) and camphor (0.95%). The sesquiterpenes present in fairly good amounts were germacrene D (4.25%) and trans-caryophyllene (1.69%). The minor sesquiterpenes were α-farnesene (0.85%) and β-bisabolene (0.74%). The antimicrobial activities of the essential oils were evaluated against both Gram positive (Staphylococcus aureus, Bacillus spp.) and Gram negative (Escherichia coli, Pseudomonas aeruginosae, Salmonella typhi, Klebisiella pneumoniae, Proteus mirabilis) bacteria and a pathogenic fungus Candida albicans. The oil had pronounced antibacterial and antifungal activities on all the microbes.
OTIENO MROLWALTHOMAS. "- Olwal et al. (2006b) investigates a Cramer-Rao bound on the unbiased timing phase estimation proposed in Olwal et al. (2006a). the Cramer-Rao bound on variance performance yields improved bit error rate performance in GSM receivers. The non data aided a.". In: Faculty of Veterinary Medicine Biennial Scientific Conference November 2004, Nairobi. Journal of Applied Biosciences; 2006. Abstract
Hydro-distilled volatile oils from the leaves of Ocimum gratissimum L. (Lamiaceae) from Meru district in Eastern Kenya were analysed by gas chromatography-mass spectrometry (GC-MS) and also evaluated for antimicrobial activity. The oil was dominated by monoterpens which accounted for 92.48%. This monoterpene fraction was characterized by a high percentage of eugenol (68.8%). The other major monoterpenes were methyl eugenol (13.21%), cis-ocimene (7.47%), trans-ocimene (0.94%), β-pinene (1.10%) and camphor (0.95%). The sesquiterpenes present in fairly good amounts were germacrene D (4.25%) and trans-caryophyllene (1.69%). The minor sesquiterpenes were α-farnesene (0.85%) and β-bisabolene (0.74%). The antimicrobial activities of the essential oils were evaluated against both Gram positive (Staphylococcus aureus, Bacillus spp.) and Gram negative (Escherichia coli, Pseudomonas aeruginosae, Salmonella typhi, Klebisiella pneumoniae, Proteus mirabilis) bacteria and a pathogenic fungus Candida albicans. The oil had pronounced antibacterial and antifungal activities on all the microbes.
.
O DROUTAGEORGE. ". .". In: Mid American Alliance for African Studies conference (MAAAS). Kansas State University, USA,; Submitted. Abstract
No abstract available. PMID: 11957248 [PubMed - indexed for MEDLINE]
Pulei A, Inyimili M, Ogeng’o J, Kitunguu P, ONGETI K, Obimbo M. ". Surgical significance of brachial arterial variants in a Kenyan population." Annals of African Surgery. 2012;9. Abstract

Surgical significance of brachial arterial variants in a Kenyan population
A Pulei, M Obimbo, K Ongeti, P Kitunguu, M Inyimili, J Ogeng’o

Abstract

Background: Knowledge of the variant anatomy of the brachial artery is important in radial arterial grafts for coronary bypass, percutaneous trans-radial approach to coronary angiography, angioplasty and flap surgery. These variations show ethnic differences but data from black populations are scarce. This study therefore describes the course in relation with median nerve, level and pattern of termination of brachial artery in a black Kenyan population.
Methods: This was a cadaveric dissection study of 162 upper limbs at the Department of Human Anatomy University of Nairobi, Kenya. The brachial artery was exposed entirely from the lower border of teres major to its point of termination. The course in relation to the median nerve and the level of termination were recorded. The results were analyzed using SPSS version 17.0 for Windows.
Results: 72.2% of the brachial arteries followed the classical pattern described in Gray’s Anatomy. Superfi cial brachioradial and superficial brachial arteries were present in 12.3% and 6.1% of the cases respectively. Brachial artery terminated at the radial neck in 79% of the cases, radial tuberosity (8.6%), and proximal arm (11.1%), mid arm (1.2%). Pattern of termination was either a bifurcation into the radial and ulnar arteries (90.1%) or trifurcation into radial, ulnar and common interosseous arteries (9.3%). We also report a case of trifurcation of the brachial artery into the profunda brachii, radial and ulnar arteries (0.6%).
Conclusion: Variations of the brachial artery in its relationship with the median nerve, level and pattern of termination are common. These may complicate arm surgical exposures, fl ap and vascular surgery. Pre-operative angiographic evaluation is recommended.

Keywords: brachial artery, bifurcation, trifurcation, superficial brachioradial artery

Ibisomi L, Odimwegu C, Otieno A, KIMANI M. ". Degree of Preference Implementation and Fertility Changes in Developing Countries.". In: The XXVth IUSSP Conference. Tours, France; 2005.
Njuguini SK, Muchane MN, Wachira P, Okoth S, Muchane M, Saado H. ". Effect of land use on the diversity of macrofungi in Kereita forest Kikuyu escarpment, Kenya." Current Research in Environmental & Applied Mycology. 2018;Volume 8 (2 ):254-281.
Maina PK, Wachira PM, Okoth SA, Kimenju JW, Otipa M, Kiarie JW. ". Effects of Land-Use Intensification on Distribution and Diversity of Fusarium Species in Machakos County, Kenya. ." Journal of Agricultural Science. 2015;7(4):48-60.
Otieno ATA. ". Fertility Response to Infant Mortality in Kenya. Evidence from 1993 Demographic and Health Survey.". In: Population and Development in Kenya: Essays in Honour of S H Ominde. Nairobi, Kenya. Pp 43-55: Population Studies and Research Institute; 2000.
Ojwang J. D, R.O. Nyankanga, and J. Imungi, Olanya MO. ". Growth Parameters of vegetable pigeon pea varieties in Kenya." Horttechnology spotlight 5. 2016.nyankangaojwanghortechnology_spotlight_vol_97_pg_5_2016pdf.pdf
Kuria ZN, Woldai, T., Opiyo Akech N. ". Imaging saltwater intrusion into coastal aquifers with electrical resistivity tomography at Lamu Island, South Coast Kenya. ." African Journal of Science and Technology. 2010;11(2):57-72.
Opanga SA, Mwang’ombe NJ, Okalebo FA, Kuria KAM. ". Impact of neurosurgical site infections on patient expenditure at a national referral hospital in Kenya: a cost of illness study. ." African Journal of Pharmacology and Therapeutics. 2017;6(2):72-76.
Kemoli AM, van Amerongen WE, Opinya GN. ". Influence of different isolation methods on the survival of proximal ART restorations in primary molars after two years." Eur Arch Paediatr Dent. 2008;11(3):132-135. Abstract

Aim: This was to evaluate the influence of two methods of tooth-isolation on the survival rate of proximal ART restorations in the primary molars.
Methods: The study was conducted in two rural divisions in Kenya, with 7 operators
randomly paired to a group of 8 assistants. A total of 804 children had each one proximal cavity in a primary molar restored using the ART approach. During the restoration 2 isolation methods, rubber dam or cotton wool rolls, and 3 brands of glass ionomer cements were randomly used by the operators. The restorations were then followed for a period of 2 years.
Statistics: SPSS 14.0 was used to analyze and relate the data obtained to the method of
isolation used.
Results: After 2 years 30.8% of the ART restorations had survived. Higher survival rates of the restorations were obtained when using rubber dam irrespective of the GIC material or the operator.
Conclusions: Generally the survival rate of the proximal restorations in the present
study was very low, but the use of rubber dam resulted in a higher survival rate of the
restorations.

Onyatta JO, Omoto WO. . Potential for urban and peri-urban agriculture to create employment and reduce poverty.. Nairobi: Kenya Agricultural Research Institute, Urban Harvest-CIP and International Livestock Research Institute (ILRI).; 2004.
OKOTH PROFOGENDOHASTINGW. "."The perils of land"tenure" reform" in J. W. Arntzenm at. Al (eds.); Land Policy and Agriculture in Eastern and Southern Africa, United Nations University Tokyo, Japan.". In: Cent. Afri. J. Pharm.Sci. 5(3): 60-66. Cent. Afri. J. Pharm.Sci. 5(3): 60-66; 1987. Abstract
The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-O-beta-D-desosaminylerythronolide A and 15-nor-erythromycin C, in mother liquor concentrates of Streptomyces erythraeus is described. The pseudo-erythromycin derivatives are characterized by a 12-membered macrocyclic ring as a result of C13––C11 trans-lactonization. The five compounds have very little antimicrobial activity.
Otieno CF, Huho AN OEOAAANE. ".Type 2 diabetes mellitus: clinical and aetiologic types, therapy and quality of glycaemic control of ambulatory patients.East Afr Med J. 2008 Jan;85(1):24-9.". In: East Afr Med J. 2008 Jan;85(1):24-9. African Wildlife Foundation. Nairobi; 2008. Abstract

BACKGROUND: Type 2 diabetes is a heterogeneous disease with multiple causes revolving around beta cell dysfunction, insulin resistance and enhanced hepatic glucose output. Clinical judgement based on obesity status, age of onset and the clinical perception of residual beta cell insulin secretory function (hence insulin-requiring or not), has been used to determine therapeutic choices for each patient. Further laboratory testing of the clinically defined type 2 diabetes unmasks the various aetiologic types within the single clinical group. OBJECTIVE: To determine the aetiological types of the clinically defined type 2 diabetic patients, their chosen therapies at recruitment and the quality of glycaemic control achieved. DESIGN: Descriptive cross-sectional study. SETTING: Diabetes out-patient clinic of Kenyatta National Hospital, Nairobi, Kenya. RESULTS: A total of 124 patients with clinical type 2 diabetes were included, 49.2% were males. The mean duration of diabetes in males was 26.09 (20.95) months and that of females was 28.68 (20.54) months. The aetiological grouping revealed the following proportions: Type 1A-3.2%, Type 1B-12.1%, LADA-5.7%, and "true" type 2 diabetes 79.0%. All the patients with Type 1A were apparently, and rightly so, on "insulin-only" treatment even though they did not achieve optimal glycaemic control with HbA1c % = 9.06. However the study patients who were type 1B and LADA were distributed all over the treatment groups where most of them did not achieve optimal glycaemic control, range of HbA1c of 8.46 -10.6%. The patients with "true" type 2 were also distributed all over the treatment groups where only subjects on 'diet only' treatment had good HbA1c of 6.72% but those in other treatment groups did not achieve optimal glycaemic control of HbA1c, 8.07 - 9.32%. CONCLUSION: Type 2 diabetes is a heterogeneous disease where clinical judgement alone does not adequately tell the various aetiological types apart without additional laboratory testing of C-peptide levels and GAD antibody status. This may partly explain the inappropriate treatment choices for the various aetiological types with consequent sub-optimal glycaemic control of those patients.

1
Rege JEO, Ochieng J, Hanotte O. "1 Livestock Genetics and Breeding." The Impact of the International Livestock Research Institute. 2020:59.
Yusuf A, Gitu P, Bhatt B, Njogu M, Salim A, Orata D. "1-Tetralinyl as carboxamide protecting group for asparagines and application to N-alpha-t-butyloxycarbonyl (Boc) solid-phase peptide synthesis of oxytocin." chemistry and materials research. 2014;6(2):1-11.
Yusuf A, Gitu P, Bhatt B, Njogu M, Salim A, Orata D. "1-Tetralinyl as Carboxamide-Protecting Group for Asparagine and Application to N-α-t-Butyloxycarbonyl (Boc) Solid-phase Peptide Synthesis of Oxytocin." chemistry and materials research. 2014;6(2). Abstractchemistry and materials research

Description
Oxytocin, a nonapeptide amide, was synthesized on a benzhydryl-resin using the Boc strategy. Benzyl group was used in the protection of sulfhydryl group of cysteine and tyrosine side-chain. Benzhydryl and tetralinyl groups were used in the protection of glutamine and asparagine side-chains respectively. TFMSA-TFA-thioanisole-1, 2-ethanedithiol (2: 20: 2: 1 v/v) was used on the peptide-resin under different cleavage conditions to obtain oxytocin in a one-pot reaction. The cleavage at 40 C for two hours gave oxytocin quantitatively. Oxytocin could be isolated in 56% yield.

Amir Y, Gitu P, Bhatt B, Njogu M, Salim A, Orata D. "1-Tetralinyl as carboxamine-protecting group for asparagine and application to N-a-t-Butyloxycarbonyl (Boc) solid-phase pentide synthesis of oxytocin." Journal of chemistry and materials research. 2014;6(2):1-11. Abstractscan0013.pdf

Oxytocin, a nonapeptide amide, was synthesized on a benzhydryl-resin using the Boc strategy. Benzyl group was
used in the protection of sulfhydryl group of cysteine and tyrosine side-chain. Benzhydryl and tetralinyl groups were
used in the protection of glutamine and asparagine side-chains respectively. TFMSA-TFA-thioanisole-I,2-
ethanedithiol (2:20:2:1 v/v) was used on the peptide-resin under different cleavage conditions to obtain oxytocin in a
one-pot reaction. The cleavage at 40°C for two hours gave oxytocin quantitatively. Oxytocin could be isolated in
56% yield.

Amir Y, Gitu P, Bhatt B, Njogu M, Salim A, Orata D. "1-Tetralinyl as carboxamine-protecting group for asparagine and application to N-a-t-Butyloxycarbonyl (Boc) solid-phase pentide synthesis of oxytocin." Chemistry and Materials Research. 2014. Abstract

Oxytocin, a nonapeptide amide, was synthesized on a benzhydryl-resin using the Boc strategy. Benzyl group was
used in the protection of sulfhydryl group of cysteine and tyrosine side-chain. Benzhydryl and tetralinyl groups were
used in the protection of glutamine and asparagine side-chains respectively. TFMSA-TFA-thioanisole-I,2-
ethanedithiol (2:20:2:1 v/v) was used on the peptide-resin under different cleavage conditions to obtain oxytocin in a
one-pot reaction. The cleavage at 40°C for two hours gave oxytocin quantitatively. Oxytocin could be isolated in
56% yield.

Ekwom PE, Oyoo GO, Amayo EO, Muriithi IM. "1. Prevalence and characteristics of articular manifestations in human immunodeficiency virus infection." east african medical journal. 2010;87(10):408-14.
Oketch Oboth JWB. "1. Stress as a Health Issue among University students: Implications for the Counselling Services." The Fountain, Journal of Educational Research. 2010;Vol. IV(No. 1).
Njau DG, Muge EK, Kinyanjui PW, Omwandho C, Mukwana S. "1. STRs analysis of human DNA from Maggots Fed on Decomposing Bodies: Assessment of the time period for successful analysis ." Egyptian Journal of Forensic Science . 2019;6(3):261-269. AbstractFull Text Link

Frequently, forensic entomology is applied in the use of insect maggots for the identification of specimens or remains of humans. Maggot crop analysis could be valuable in criminal investigations when maggots are found at a crime scene and a corpse is absent. Human short tandem repeat (STR) has previously been used to support the association of maggots to a specific corpse but not in the period at which the body has been decomposing. The aim of this research was to assess the time period for successful STR analyses of human DNA from third instar maggots (Protophormia terraenovae) obtained from decomposing human corpses as well as to investigate the human DNA turnover and degradation in the maggot crop after they are removed from food and/or are fed on a beef (a new/different) food source. Results showed that the amount of human DNA recovered from maggots decreased with time in all cases. For maggots fed on beef, the human DNA could only be recovered up to day two and up to day four for the starved maggots. STR analyses of human DNA from maggots’ crop content using 16 loci generated profiles that matched those of reference samples although some of the alleles were not amplifiable therefore generating partial profiles for the samples starved for 4 days and those fed on beef. This may be due to nuclease activity present in the gut of larvae that may have caused degradation of DNA and consequently reduction in DNA yield. It was possible to identify the decomposing body using STRs as markers.

Njau DG, Muge EK, Kinyanjui PW, Omwandho C, Mukwana S. "1. STRs analysis of human DNA from Maggots Fed on Decomposing Bodies: Assessment of the time period for successful analysis ." Egyptian Journal of Forensic Science . 2019;6(3):261-269. AbstractFull Text Link

Frequently, forensic entomology is applied in the use of insect maggots for the identification of specimens or remains of humans. Maggot crop analysis could be valuable in criminal investigations when maggots are found at a crime scene and a corpse is absent. Human short tandem repeat (STR) has previously been used to support the association of maggots to a specific corpse but not in the period at which the body has been decomposing. The aim of this research was to assess the time period for successful STR analyses of human DNA from third instar maggots (Protophormia terraenovae) obtained from decomposing human corpses as well as to investigate the human DNA turnover and degradation in the maggot crop after they are removed from food and/or are fed on a beef (a new/different) food source. Results showed that the amount of human DNA recovered from maggots decreased with time in all cases. For maggots fed on beef, the human DNA could only be recovered up to day two and up to day four for the starved maggots. STR analyses of human DNA from maggots’ crop content using 16 loci generated profiles that matched those of reference samples although some of the alleles were not amplifiable therefore generating partial profiles for the samples starved for 4 days and those fed on beef. This may be due to nuclease activity present in the gut of larvae that may have caused degradation of DNA and consequently reduction in DNA yield. It was possible to identify the decomposing body using STRs as markers.

Kimani Zipporah Muthoni, Ogutu O, Anthony K. "1. The Prevalence and Impact of Obstetric Fistula on Women of Kaptembwa – Nakuru, Kenya." International Journal of Applied Science and Technology . 2014;4(3):273-287.
O PROFMUMMAALBERT. "1. Environmental Law: Meeting UK & EC Requirements, McGraw Hill, London.". In: UCLA Journal of Environmental Law and Policy, vol. 19, 2000/2001, No. 1 at p. 181. Departmental seminar; 1995. Abstract
Oyieke H.A. and Misra A.K:
Thecla A, O KG, Alice O-O. "10. Principal component analysis of the effects of flooding on food security in agrarian communities of south eastern Nigeria." International Journal of Hydrology. 2018;2(2):205-212.
Muiruri J, Ambuko J, Nyankanga R, Owino WO. "10010 Determination of Maturity Indices of Three Mango Varieties Produced in Embu County of Kenya." 28th-31st March 2017| Safari Park Hotel, Nairobi, Kenya. Submitted. Abstract
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Okidi CO, Kameri-Mbote P, Akech M. "11) ENVIRONMENTAL GOVERNANCE IN KENYA: IMPLEMENTING THE FRAMEWORK LAW ." East African Educational Publishers. 2008.
Odada E, Olago D, Ochola W, Wandiga S. 11TH WORLD LAKES CONFERENCE. Nairobi: international lake environment committee ; 2005.
Ogutu O, F W. "12. Steroid use in Rhesus negative sensitized mothers to reduce Rhesus anti-D titres." J. Obstet. Gynaecol. East. Cent. Afr. 2005;19:40-43.
Okidi CO, Kameri-Mbote P, Akech M. "13) Governing Water and Sanitation in Kenya, in ENVIRONMENTAL GOVERNANCE IN KENYA: IMPLEMENTING THE FRAMEWORK LAW 305 ." East African Educational Publishers. 2008;305 .
O PROFNYINGUROPHILIP. "13-15 march, 2007 participated at the .". In: Kenya School of Monetary Studies, Nairobi.; 2007. Abstract
n/a
C K, Ogutu O. "13. Condom acceptability and use among patients attending STC clinic in Nairobi ." J. Obstet. Gynaecol. East. Cent. Afr. 1992;10:25-30 .
O. PROFNDINYA-ACHOLAJ. "139 McClelland RS, Lavreys L, Hassan WM, Mandaliya K, Ndinya-Achola J, Baeten JM. Vaginal washing and increased risk of HIV-1 acquisition among African women: a 10-year prospective study. AIDS 2006;20:269-73.". In: AIDS 2006;20:269-73. IBIMA Publishing; 2006. Abstractvaginal_washing_and_increased_risk_of_hiv-1_acquisition_among_african_women_a_10-year_prospective_study.docvaginal_washing_and_increased_risk_of_hiv-1_acquisition_among_african_women_a_10-year_prospective_study.pdf

BACKGROUND: No prospective study has examined the risk of HIV-1 acquisition associated with vaginal washing, although intravaginal practices have been identified as potentially important contributors to HIV-1 susceptibility. OBJECTIVE: To evaluate the contribution of vaginal washing to incident HIV-1 infection. DESIGN: Prospective cohort study. METHODS: Data were derived from a 10-year study of risk factors for HIV-1 acquisition among 1270 Kenyan female sex workers. Intravaginal practices were ascertained at study enrollment. At monthly follow-up visits, women completed a standardized interview and specimens were collected for diagnosis of HIV-1 and genital tract infections. RESULTS:: Compared with women who did not perform vaginal washing, there was an increased risk for acquiring HIV-1 among women who used water [adjusted hazard ratio (HR), 2.64; 95% confidence interval (CI), 1.00-6.97] or soap (adjusted HR 3.84; 95% CI, 1.51-9.77) to clean inside the vagina, after adjustment for demographic factors, sexual behavior, and sexually transmitted infections. Furthermore, women who performed vaginal washing with soap or other substances were at higher risk for HIV-1 compared with those who used water alone (adjusted HR, 1.47; 95% CI, 1.02-2.13). CONCLUSIONS: In populations where vaginal washing is common, this practice may be an important factor promoting the spread of HIV-1. Intervention strategies aimed at modifying intravaginal practices should be evaluated as a possible female-controlled HIV-1 prevention strategy.

O PROFNYINGUROPHILIP. "13th July, 2007 .". In: Dar es Salaam, Tanzania.; 2007. Abstract
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O PROFNYINGUROPHILIP. "13th July, 2007 .". In: Dar es Salaam, Tanzania.; 2007. Abstract
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AO Mulimba, Othieno-Abinya NA, Nyong’o AO. "A 15 – YEAR RETROSPECTIVE ANALYSIS OF OSTEOGENIC SARCOMA IN KENYA." Africa Journal Medical Practice. 1994;1(3). Abstract

Cases of osteogenic sarcoma were studied as reported in the Kenya Cancer Registry covering a period of 15 years between January 1976 and December 1990. There were 271 cases with 113 (41.5%) coming from the Kikuyu community. The male to female ratio was 1.3 to 1 and the median age was 17 years. The tribal bias suggests either a genetic aetiology or a common environmental factor.

Afri J Med Prac, 1994; 1 (3): 73-7

Introduction

Osteosarcoma is the most common sarcoma of bone worldwide. It occurs mainly during childhood and adolescence. during childhood and adolescence. 1-3 A biphasic pattern is observed with this tumour. The childhood and adolescent tumour is commonly observed arising in the epiphyses of long bone during the growth spurt . A small peak occurs in the elderly which is commonly associated with paget ‘s diseases or arises in prior radiation therapy ports or associated with exposure to thorotrast.4

Apart from the Kenyatta National Hospital (KNH) based study by Gakuu in 1980, 5 no information is available on the clinic-epidemiological picture of asteosarcoma in East Africa. A study was therefore, designed to look into some preliminary information about osteosarcoma in Kenya.

Materials and Methods

The source if this information was the Kenya Cancer registry (January 1975 to December 1990). Details were scrutinized about histology, sex, hospital of reporting, tribe, age and involved site(s).

Results
There were a total of 271 cases of osteogenic sarcoma consisting of 151 males and 177 females (Male : Female = 1.3:1). Three cases had no gender identified. The Kikuyu predominate (42%) followed by Kamba (12%) as province, as shown in table 1. Most cases were reported from Nairobi province, as shown in table 2.

Cases were registered in all age groups (range 3 – 87 years) though the second decade accounted for 140 out of 244 (57%) of those whose ages were known (table 3). The median age was 17 years and mean age 19.5 years. Age distribution by tribes was fairly similar (table 4). The femur and tibia were most commonly involved, followed by the jaws (figure1).

Head and face involvement was then analyzed in greater details. The median age this time was 22 and mean age 27.3, only 26.5%of cases being recorded in second decade and 38.2% in third decade (Table 5). The Kikuyu were stillleading in head and facial involvement. It is however noteworthy that 40% of Luos now presented this way (table 6).

O PROFNYINGUROPHILIP. "18th March, 2007 .". In: Sunday Standard.; 2007. Abstract
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Butt FMA, Ogeng'o J, Bahra J, Chindia ML, Dimba EAO, wagaiyu E. "19-year audit of benign jaw tumours and tumour-like lesions in a teaching hospital in Nairobi, Kenya." Open Journal of Stomatology . 2012; 2:54-59. AbstractWebsite

Background: The diversity of benign jaw tumours may cause difficulty in a correct diagnosis and insti-tution of an appropriate treatment. Data on the prevalence of these tumours is scarce from the Afri-can continent. We present a 19-year audit of benign jaw tumours and tumour-like lesions at a University teaching hospital in Nairobi, Kenya. Methods: Histo-pathological records were retrieved and re-examined from the Department of Oral and Maxillofacial pa-thology, University of Nairobi from 1992 to 2011. The jaw tumours were classified according to the latest WHO classification. Results: During the 19-year audit, 4257 biopsies were processed of which 597 (14.02%) were jaw tumours within an age range of between 4 to 86 years. There was greater number of odontogenic tumours 417 (69.85%) than the bone related lesions 180 (30.15%). Of the odontogenic tumours, the epithet- lial and in the bone related types, the fibro-osseous lesions were frequent. Conclusion: Ameloblastoma and ossifying fibroma were the most frequent tumours reported in this audit. The information regarding the prevalence of these tumours is scarce from the conti-nent and can be useful in early detection and man-agement before they cause facial deformity.

Butt FM, Ogengo J, Bahra J, Dimba EAO, Wagaiyu E. "19-year audit of benign jaw tumours and tumour-like lesions in a teaching hospital in Nairobi, Kenya.". 2012. AbstractWebsite

Background: The diversity of benign jaw tumours may cause difficulty in a correct diagnosis and insti-tution of an appropriate treatment. Data on the prevalence of these tumours is scarce from the Afri-can continent. We present a 19-year audit of benign jaw tumours and tumour-like lesions at a University teaching hospital in Nairobi, Kenya. Methods: Histo-pathological records were retrieved and re-examined from the Department of Oral and Maxillofacial pa-thology, University of Nairobi from 1992 to 2011. The jaw tumours were classified according to the latest WHO classification. Results: During the 19-year audit, 4257 biopsies were processed of which 597 (14.02%) were jaw tumours within an age range of between 4 to 86 years. There was greater number of odontogenic tumours 417 (69.85%) than the bone related lesions 180 (30.15%). Of the odontogenic tumours, the epithet- lial and in the bone related types, the fibro-osseous lesions were frequent. Conclusion: Ameloblastoma and ossifying fibroma were the most frequent tumours reported in this audit. The information regarding the prevalence of these tumours is scarce from the conti-nent and can be useful in early detection and man-agement before they cause facial deformity.

Butt FM, Ogengo J, Bahra J, Chindia ML, Wagaiyu E. "19-year audit of benign jaw tumours and tumour-like lesions in a teaching hospital in Nairobi, Kenya.". 2012. AbstractWebsite

Background: The diversity of benign jaw tumours may cause difficulty in a correct diagnosis and insti-tution of an appropriate treatment. Data on the prevalence of these tumours is scarce from the Afri-can continent. We present a 19-year audit of benign jaw tumours and tumour-like lesions at a University teaching hospital in Nairobi, Kenya. Methods: Histo-pathological records were retrieved and re-examined from the Department of Oral and Maxillofacial pa-thology, University of Nairobi from 1992 to 2011. The jaw tumours were classified according to the latest WHO classification. Results: During the 19-year audit, 4257 biopsies were processed of which 597 (14.02%) were jaw tumours within an age range of between 4 to 86 years. There was greater number of odontogenic tumours 417 (69.85%) than the bone related lesions 180 (30.15%). Of the odontogenic tumours, the epithet- lial and in the bone related types, the fibro-osseous lesions were frequent. Conclusion: Ameloblastoma and ossifying fibroma were the most frequent tumours reported in this audit. The information regarding the prevalence of these tumours is scarce from the conti-nent and can be useful in early detection and man-agement before they cause facial deformity.

Butt FM, Ogengo J, Bahra J, Chindia ML, Dimba EAO, Wagaiyu E. "19-year audit of benign jaw tumours and tumour-like lesions in a teaching hospital in Nairobi, Kenya.". 2012. AbstractWebsite

Background: The diversity of benign jaw tumours may cause difficulty in a correct diagnosis and insti-tution of an appropriate treatment. Data on the prevalence of these tumours is scarce from the Afri-can continent. We present a 19-year audit of benign jaw tumours and tumour-like lesions at a University teaching hospital in Nairobi, Kenya. Methods: Histo-pathological records were retrieved and re-examined from the Department of Oral and Maxillofacial pa-thology, University of Nairobi from 1992 to 2011. The jaw tumours were classified according to the latest WHO classification. Results: During the 19-year audit, 4257 biopsies were processed of which 597 (14.02%) were jaw tumours within an age range of between 4 to 86 years. There was greater number of odontogenic tumours 417 (69.85%) than the bone related lesions 180 (30.15%). Of the odontogenic tumours, the epithet- lial and in the bone related types, the fibro-osseous lesions were frequent. Conclusion: Ameloblastoma and ossifying fibroma were the most frequent tumours reported in this audit. The information regarding the prevalence of these tumours is scarce from the conti-nent and can be useful in early detection and man-agement before they cause facial deformity.

Wangara AA, Leeper S, Mweu J, Harty S, Martin IBK, Hunold KM, Ekernas K, Dunlop SJ, Twomey M, Maingi A, others. "192 Strengthening Emergency Care Operations in East Africa: Implementation of the South African Triage Scale at Kenyatta National Hospital in Nairobi, Kenya." Annals of Emergency Medicine. 2017;70:S77. Abstract
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OWANO MRSOCHIENOLYNN. "1994 Sexist Language and its effect on Girls.". In: conference of house maids and bar maids. oxford press; 1994. Abstract

matina ma nguku

and Oucho S-DJODM. The 1996 UNFPA Strategy for Sub-Saharan Africa. New York: UNFPA; 1996.
2
Oketch Oboth JWB. "2. The Relationship between Knowledge of Results and Performance." East African Journal of Education. 1988;Vol. 1:22-25.
OWANO MRSOCHIENOLYNN. "2005 Security and its major Constraints: An Examination of the Eastern Africa Situation.". In: conference of house maids and bar maids. oxford press; 2005. Abstract

matina ma nguku

Ondieki DEO. "2010 Developing Resources for the Teaching of Architects." “Africa habitat review journal” . 2011;Volume 5(Issue 5):23-28.
O PROFNYINGUROPHILIP. "22nd January, 2007 .". In: National Defense College, Karen, Nairobi.; 2007. Abstract
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O PROFNYINGUROPHILIP. "24th May, 2007 .". In: Taifa Hall, University of Nairobi.; 2007. Abstract
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O PROFNYINGUROPHILIP. "25th May, 2007 .". In: Algeria Embassy.; 2007. Abstract
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O DRLUMUMBAPATRICK. "2ND EDITION OF "A HANDBOOK ON CRIMINAL PROCEDURE IN KENYA.". In: Kenya Nursing Journal, Vol. 33 No. 1. Gitau, W., Ogallo L. A. and Mutemi, J. N.,; 2006.
O DRLUMUMBAPATRICK. "2ND EDITION OF "AN OUTLINE OF JUDICIAL REVIEW IN KENYA.". In: Kenya Nursing Journal, Vol. 33 No. 1. Gitau, W., Ogallo L. A. and Mutemi, J. N.,; 1999.
3
O AI, KRHODA GO, Mukhovi SM. "3. Land Cover and Land Use Change in the Mara River Basin: A Geospatial Approach. ." International Journal of Agriculture, Environment and Bioresearch. 2020;5(5):68-85.
Oredo J. "3D Printing: From Manufacturing to Infofacturing." MANAGEMENT November (2019).
4
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Chindia ML, Wagaiyu EG, ocholla Tom, Opondo F, Kihara E. "5-year audit of the range and volume of diagnostic radiographic services at the University of Nairobi Dental Hospital.". 2012. AbstractWebsite

Background: Dental and cranio-maxillofacial diagnostic imaging constitutes an invaluable tool in the accurate diagnosis and management of a diverse range of conditions and diseases that afflict the oral and cranio-maxillofacial region. In order to improve on any existing facility, periodic audit evaluation is paramount. In this way proper and relevant service delivery can be achieved. Objective: To evaluate the range and volume of dental and cranio-maxillofacial diagnostic radiographic services offered at the University of Nairobi Dental Hospital (UNDH) in Kenya over a 5-year period (2006-2010). Methods: Retrospective survey involving manual examination of patient records at the Division of Dental and cranio-maxillo- facial Radiology registry of the UNDH. Results: Over the study period, the range of diagnostic radiographic services offered comprised of both intra- and extra- oral examinations. The total volume of radiographs taken was 48,874 among which 41,980 (86%) were intraoral and 6894 (14%) extraoral views. Among the intraoral views, 74% were bitewing, 25% periapical and only 1% were occlusal diagnostic views. The majority (95%) of the extraoral projections consisted of panoramic views and only 5% constituted other techniques. The volume of radiographs was high from January to September while November and December had the lowest number of examination requests. Conclusion: Intraoral radiography was the commonest examination with bitewings having been the majority while the panoramic tomography was the com- monest extraoral examination performed.

Kihara EN, Opondo F, Opondo F, Chindia ML, Wagaiyu E. "5-year audit of the range and volume of diagnostic radiographic services at the University of Nairobi Dental Hospital.". 2012. AbstractWebsite

Background: Dental and cranio-maxillofacial diagnostic imaging constitutes an invaluable tool in the accurate diagnosis and management of a diverse range of conditions and diseases that afflict the oral and cranio-maxillofacial region. In order to improve on any existing facility, periodic audit evaluation is paramount. In this way proper and relevant service delivery can be achieved. Objective: To evaluate the range and volume of dental and cranio-maxillofacial diagnostic radiographic services offered at the University of Nairobi Dental Hospital (UNDH) in Kenya over a 5-year period (2006-2010). Methods: Retrospective survey involving manual examination of patient records at the Division of Dental and cranio-maxillo- facial Radiology registry of the UNDH. Results: Over the study period, the range of diagnostic radiographic services offered comprised of both intra- and extra- oral examinations. The total volume of radiographs taken was 48,874 among which 41,980 (86%) were intraoral and 6894 (14%) extraoral views. Among the intraoral views, 74% were bitewing, 25% periapical and only 1% were occlusal diagnostic views. The majority (95%) of the extraoral projections consisted of panoramic views and only 5% constituted other techniques. The volume of radiographs was high from January to September while November and December had the lowest number of examination requests. Conclusion: Intraoral radiography was the commonest examination with bitewings having been the majority while the panoramic tomography was the com- monest extraoral examination performed.

Kihara EN, Opondo F, Ocholla TJ, Chindia ML, Wagaiyu E. "5-year audit of the range and volume of diagnostic radiographic services at the University of Nairobi Dental Hospital.". 2012. AbstractWebsite

Background: Dental and cranio-maxillofacial diagnostic imaging constitutes an invaluable tool in the accurate diagnosis and management of a diverse range of conditions and diseases that afflict the oral and cranio-maxillofacial region. In order to improve on any existing facility, periodic audit evaluation is paramount. In this way proper and relevant service delivery can be achieved. Objective: To evaluate the range and volume of dental and cranio-maxillofacial diagnostic radiographic services offered at the University of Nairobi Dental Hospital (UNDH) in Kenya over a 5-year period (2006-2010). Methods: Retrospective survey involving manual examination of patient records at the Division of Dental and cranio-maxillo- facial Radiology registry of the UNDH. Results: Over the study period, the range of diagnostic radiographic services offered comprised of both intra- and extra- oral examinations. The total volume of radiographs taken was 48,874 among which 41,980 (86%) were intraoral and 6894 (14%) extraoral views. Among the intraoral views, 74% were bitewing, 25% periapical and only 1% were occlusal diagnostic views. The majority (95%) of the extraoral projections consisted of panoramic views and only 5% constituted other techniques. The volume of radiographs was high from January to September while November and December had the lowest number of examination requests. Conclusion: Intraoral radiography was the commonest examination with bitewings having been the majority while the panoramic tomography was the com- monest extraoral examination performed.

Kihara EN, Opondo F, Ocholla TJ, Chindia ML, Wagaiyu E. "5-year audit of the range and volume of diagnostic radiographic services at the University of Nairobi Dental Hospital.". 2012. AbstractWebsite

Background: Dental and cranio-maxillofacial diagnostic imaging constitutes an invaluable tool in the accurate diagnosis and management of a diverse range of conditions and diseases that afflict the oral and cranio-maxillofacial region. In order to improve on any existing facility, periodic audit evaluation is paramount. In this way proper and relevant service delivery can be achieved. Objective: To evaluate the range and volume of dental and cranio-maxillofacial diagnostic radiographic services offered at the University of Nairobi Dental Hospital (UNDH) in Kenya over a 5-year period (2006-2010). Methods: Retrospective survey involving manual examination of patient records at the Division of Dental and cranio-maxillo- facial Radiology registry of the UNDH. Results: Over the study period, the range of diagnostic radiographic services offered comprised of both intra- and extra- oral examinations. The total volume of radiographs taken was 48,874 among which 41,980 (86%) were intraoral and 6894 (14%) extraoral views. Among the intraoral views, 74% were bitewing, 25% periapical and only 1% were occlusal diagnostic views. The majority (95%) of the extraoral projections consisted of panoramic views and only 5% constituted other techniques. The volume of radiographs was high from January to September while November and December had the lowest number of examination requests. Conclusion: Intraoral radiography was the commonest examination with bitewings having been the majority while the panoramic tomography was the com- monest extraoral examination performed.

Ogot M. "5. Development and Implementations of TRIZ Theory-5.4 EMS Models: Adaptation of Engineering Design Black-Box Modeling for Use in TRIZ." 5. Development and Implementations of TRIZ Theory-5.4 EMS Models. 2004:1000-1013. Abstract

The Theory of Inventive Problem Solving (TRIZ) has been widely recognized as a
powerful systematic innovation technique that can be applied to a wide arrange of
disciplines. This paper focuses on engineering design and illustrates how modeling
methods already familiar to engineering designers can be adapted for use in TRIZ.
Specifically, the'black-box'modeling technique, common in problem formulation and
clarification in engineering design, is modified for use in TRIZ. The new technique, referred …

Onjala J, Agevi E, Wasala W, Kut G. The 5th Human Development Report for Kenya 2006: Human Security and Human Development. Programme UND, ed. Nairobi; 2006.
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O DROUTAGEORGE. "6. .". In: Governance Issues in East Africa. Centre for African Studies: University of Florida, Gainesville; 1995. Abstract
No abstract available. PMID: 11957248 [PubMed - indexed for MEDLINE]
Anzala AO, Ball TB, Rostron T, O’Brien SJ, Plummer FA, study group NHIV, Rowland-Jones SL. "The 64I allele of the CCR2 chemokine receptor is strongly associated with delayed disease progression in a cohort of African prostitutes.". 1998.Website
Muiva L, Macharia B, Akala H, Derese S, Omosa LK, Yusuf A, Kamau E, Koch A, Heidenreich M, Yenesew A. "6a-Hydroxy-α-toxicarol and (+)-Tephrodin with antiplasmodial activities from Tephrosia species." Phytochemistry Letters. 2014;10:179-183.scan0062.pdf
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Zalasiewicz J, Waters CN, Williams M, Summerhayes CP, Odada E, Wagreich M, Draganits E, Edgewor M. "7 The Stratigraphic Boundary of the Anthropocene.". In: The Anthropocene as a Geological Time Unit: A Guide to the Scientific Evidence and Current Debate. Cambridge University Press; 2019. Abstract

Here we outline the basis on which a formal proposal should be made for potential inclusion of the Anthropocene in the Geological Time Scale, examining the scale and rate of human change to the Earth System to help recognise the point at which anthropogenic impacts became of sufficient scale to allow discrimination of the Anthropocene as a geological unit. This examination covers such factors as impacts from early hominin species, the first human artefacts, early ecosystem modification through agriculture, deforestation, the domestication of animals, urbanisation, metal mining and smelting and early globalisation. The Industrial Revolution, starting in the UK in the 18th century, and the global Great Acceleration of the mid-20th century, are investigated, as both provide popular narratives that explain the Earth System changes indicative of the Anthropocene, with the latter producing the near-synchronous stratigraphic signals most consistent with an effective geological time boundary. We assess which hierarchical level–age, epoch, period, era or eon–seems most suitable for the Anthropocene, and suggest that epoch (= series) level is conservative and appropriate. The Anthropocene might be defined via a Global Standard Stratigraphic Age or a Global boundary Stratotype Section and Point, with the latter being most appropriate. Finally, we assess the kinds of geological environments, including anoxic marine basins, annually banded coral and bivalve skeletons, estuaries and deltas, lake floors, peat mires, anthropogenic deposits, polar ice, speleothems and tree rings, in which such a physical reference level might be placed.

O DROUTAGEORGE. "7. .". In: Souvenir Journal of African Literature, No 1. Vol 1. Octawns: Nairobi, 1999. 1999; 1986. Abstract
No abstract available. PMID: 11957248 [PubMed - indexed for MEDLINE]
O PROFNYINGUROPHILIP. "7th March, 2007 .". In: United Nations Centre for Regional Development, AICAD, Juja, Kenya.; 2007. Abstract
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Mwega F, Due J, Osoro N. "8. `Evolving Sales Taxation in Kenya and Tanzania'." Bureau of International Fiscal Documentation. 1990:233-239.
OPIYO PROFAKECHNOBERT. "8. Muhongo S. and N. Opiyo-Akech , 1999 - Geology and mineral resources of east Africa:.". In: Journal of African Earth Sciences Vol.29, Issue 2. pp 281-282. UNIVERSITY OF NAIROBI; 1999. Abstract
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OKECH MROWITIMAURICED. "'A Concept Brief on Methodologies of "Mass" Civic Education for Constitutional Review'.". In: Victoria Walter and Debbie Betts (eds), Safeguarding Human Rights in Eastern Africa (FES, Kampala), 77. Rao, W. O., Ogonji, J. A.. and Aywa, S.; 1999. Abstract
PIP: This research report studies several biochemical and histochemical aspects of cervical carcinoma and explores their use in follow-up of patients undergoing radiotherapy. Material came from 19 patients with invasive cervical carcinoma admitted to Kenyatta National Hospital. A control group consisted of 20 women matched for age who attended clinics at the hospital but were not suffering from any malignant disease; control tissue for histological examination was obtained from 3 women who had undergone hysterectomy for uterine fibroids. Biochemical assays for alkaline and acid phosphatases in patients with cervical carcinoma show an increase in alkaline phosphatase in carcinomatous tissue (35.7 umoles/hr/mg) as opposed to normal tissue (7.2). Acid phosphatase values were only moderately raised. Assays of the same enzymes in blood showed a less marked difference between patients and controls (ranges of 7.5-20.8 and 3-14, respectively). When examined histochemically, increased alkaline phosphatase activity was observed in connective tissue, epithelium of the glands and blood capillaries of tumor tissue. 1 section containing normal tissue bordering carcinomatous tissue demonstrated normal alkaline phosphatase activity in the normal tissue and increased activity in the tumor tissue. In summary, there is increased enzyme activity around the tumor areas, but values for serum levels show an overlap of normal and abnormal cases and are therefore not predictive. Results demonstrate a clear difference in activities of these enzymes in carcinomatous tissue and normal tissue, which may be of value in follow-up care.
OKOTH PROFOGENDOHASTINGW. ""A Food and Nutrition Policy for Kenya" (with Siegfried Schornherr); paper for the Kenya Delegation to the United Nations Wolrd Food Conference, Rome, November 506, 1974, IDS Working Paper No. 242.". In: Academics Press, New york. Cent. Afri. J. Pharm.Sci. 5(3): 60-66; 1975. Abstract
The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-O-beta-D-desosaminylerythronolide A and 15-nor-erythromycin C, in mother liquor concentrates of Streptomyces erythraeus is described. The pseudo-erythromycin derivatives are characterized by a 12-membered macrocyclic ring as a result of C13––C11 trans-lactonization. The five compounds have very little antimicrobial activity.
O PROFOWINOJOHN. "A. M. Achola, N. J. Muthama & J. O. Owino(2006): Influence of Weather on the Insurance Industry in Kenya:.". In: African J. of Sci. & Technol. Vol. 7, No.,pp 112-120. 1999; 2006. Abstract
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