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Optical activity and faraday effect in some mineral and vegetable oils.
No full textxix,150 p.: illThis Thesis presents results of a study of Optical Activity and Faraday Effect
(OAFE) in some mineral and vegetable oils in the temperature range of 6°C to 45°C
and magnetic field up to 140mT. Intrinsic birefringences responsible for Optical
Activity were found in vegetable oils with impurities and all mineral oils. The
results of Optical Activity in both types of oils obeyed the equation
(0. 1)
where Qw .,, is the angle at which minimum irradiance I min occurs in water and other
substances which are optically inactive, is the rotation angle in the medium and
A is a rotation due to impurity concentration. The results show that, the more the
impurity concentration is in the vegetable oil, the greater the rotation angle. The
rotation angle is almost directly proportional to impurity concentration.
When static magnetic field was applied to mineral oils and vegetable oil with
impurities, the rotation angle obeyed the equation
= Ml<L + VHL (0.2)
where M is the intensity of magnetisation of the medium, K the Kundt's constant
(rad/m), L path length in metres, V the Verdet's constant in radT-1m- 1 and H is
the magnetic field intensity in Am-1
Heavy diesel oils like red diesel, Esso diesel and Fina diesel No.1 rotate more the
vibration plane and therefore possess more intrinsic birefringences than light diesel
such as Nors Hydro AS diesel and petrol. In vegetable oi ls free from impuritie
Preliminary surveys of outdoor and indoor aeromycobiota in Uganda
No full text41-51 p.This investigation was conducted during the period of March through June 1998 to trap, enumerate and identify the different airborne fungi in a variety of microhabitats of outdoor and indoor environments in different localities of Uganda. The settle plate method was used and Czapek-Dox agar was the isolation medium. A total of 47 genera and 61 species in addition to some other unidentified airborne fungi were trapped from all exposures at outdoor (39 genera and 52 species) and indoor (35 and 49) environments. The total fungal catches of outdoor airspora obtained from all exposures (and even in most individual exposures) were more than twice (5222 colonies) of that of the indoor ones (4361) when the exposure periods are taken into consideration. It is worth mentioning that the most highly polluted sites were either parks, forests or river banks for outdoor exposures, or teaching laboratory, library, laterines or bathrooms for indoor exposures. The most prevalent fungi from both outdoor and indoor microhabitats being species of Mycosphaerella, Yeasts, Penicillium, Fusarium, Aspergillus,Cochliobolus and Alternaria. However, several others were trapped frequently from either outdoor or indoor environments. On the other hand, several others were trapped only, but not frequently (in low or rare instances) from either outdoor or indoor microhabitats. The implications of these airborne spores are also discussed
Education and social change : empirical studies for the improvement of education in Eastern Africa.
No full textVarious pagesThis study investigated the reasons for non-enrolment of children for Universal Primary Education (UPE) in Uganda. The central research question of the study was based on the fact that in Uganda some children who registered for UPE have still not gone to school.
The study's objective was to find out the reasons why some of the children who registered for UPE are not enrolled in school.
The study was carried out in Asuret sub-county in Soroti district. This was a descriptive qualitative study that used interviews, focus group discussions, observation and document analysis for obtaining its information. The data analysis was qualitative.
This study revealed that poverty is the main cause of non-enrolment in UPE in Asuret sub-county. Due to poverty, parents/guardians cannot afford to buy school uniforms and stationery, pay examination fees and other fees usually required by the schools. The parents advocated for an absolutely fee-free UPE programme as one of the ways of increasing enrolment rates in Asuret sub-county. This would particularly support the orphans who usually receive no financial support for school education from their guardians. This would call for the government providing uniforms, examination fees, lunch-time meals, stationery, and other school requirements.
This study recommends that in order for the orphans and children from very poor families to get education, the government should provide completely free primary education to all "its UPE children". They should also continue with its efforts to eradicate poverty in the country and to improve the teaching-learning facilities in the schools, as this would encourage parents to send their children to school. A clear policy must be rnade on the exclusion of uniforms from school requirements, and it must be ensured that schools follow this guideline.
Areas for further research include investigating the extent to which the UPE programme in Uganda has brought orphans access to education and contributed to the enrolment of girls for primary education
Institute of Teacher Education Kyambogo: Origins and Development
No full textIn this book the diversity of the origins of ITEK is analysed. The decision to start the Teacher Training College at Nyakasura and
then transfer it to Mbarara within the space of a year is examined. The Whitehead years at Kyambogo and its interphase with the
Grade V course is also analysed to show how the growth of the College into a Diploma awarding institution was from the outset
marred with experiments. The struggle for autonomy, began by F.R Poskitt is then taken to greater heights by M.Y.G. Burua. In 1985 the entrance and exit of Makerere Faculty of Education is also subjected to scrutiny. The book then reflects on ITEK since 1985, a challenge that clearly carried with it the dilemma of the contemporary historian because the authors live in that history.
Finally, an account of the Home Economics course is considered We hope that this humble contribution to knowledge about ITEK's past. will help to illustrate the point that development of the institution, though tortuous, has been inevitable. Secondly the
Institutes history also demonstrates the fact that ITEK has come of age , especially with the merger deliberations
Genetic diversity in Trypanosoma (Trypanozoon) brucei isolates from mainland and Lake Victoria island populations in south-eastern Uganda: epidemiological and control implications
No full text107-133 p.The Buvuma Islands, a collection of approximately 48 islands and islets, are situated off the northern shores of Lake Victoria, in Mukono District, Uganda. A mass evacuation of the islands' inhabitants was undertaken by the authorities in the 1940s because of an epidemic of sleeping sickness, the causative parasites being transmitted by Glossina palidipes (Mackichan, 1944)
Utilizing correspondence study in teacher in service education in East Africa: a comparative analysis of selected teacher correspondence programs conducted by the correspondence units at the University of Nairobi, Kenya and Makerere University, Uganda, between 1967 and 1973
No full textix,362 pThe overall purpose of the study was to generate more information about
training and retraining primary teachers in East Africa by
correspondence. Four primary teacher correspondence programs were studied.
(1) Grade I Teachers Upgrading Program (Uganda);
(2) Licensed Teachers ' Training Program (Uganda);
(3) P3 Teachers' Program (Kenya) ;
(4) UQT (Unqualified Teachers ' Program) (Kenya).
The firs t two programs were conducted by t he Correspondence Unit at
Makerere University, and the last two by the Correspondence Course Unit
at the University of Nairobi.
The objectives of the study were to indicate the major differences
and similarities among t he programs, t o assess the teacher-respondents'
evaluations of the programs, and to make suggestions for future primary
teacher correspondence programs in East Africa .
Data were collected in 197 5 through documentary research, interviews,
conversations , letters, and questionnaires sent t o a total of 400 teachers
(i . e . 100 teachers in each program).
The comparative approach was selected for the purpose of making the
study more analytical l than would have been the case if each of the programs
was described separately . The Bereday- Rosello comparative approach was
used in the analysis and comparison.
The programs had much in common . They were. initiated by the Ministries
of education in Kenya and Uganda and supported by foreign technical
assistance. The broad goals of the programs were to improve the academi
Analysis of the model on the effect of seasonal factors on malaria transmission dynamics
No full textMalaria is one of the world’s most prevalent epidemics. Current control and eradication efforts are being frustrated by rapid
changes in climatic factors such as temperature and rainfall. This study is aimed at assessing the impact of temperature and
rainfall abundance on the intensity of malaria transmission. A human host-mosquito vector deterministic model which
incorporates temperature and rainfall dependent parameters is formulated. The model is analysed for steady states and their
stability. The basic reproduction number is obtained using the next-generation method. It was established that the mosquito
population depends on a threshold value θ, defined as the number of mosquitoes produced by a female Anopheles mosquito
throughout its lifetime, which is governed by temperature and rainfall. The conditions for the stability of the equilibrium points
are investigated, and it is shown that there exists a unique endemic equilibrium which is locally and globally asymptotically
stable whenever the basic reproduction number exceeds unity. Numerical simulations show that both temperature and rainfall
affect the transmission dynamics of malaria; however, temperature has more influence