Browsing Doctor of Philosophy (PhD) by Issue Date

Now showing items 1-20 of 373

The Mathematical Statistics of Diversity and Abundance

Taillie, Charles (The Pennsylvania State University The Graduate School Department of Statistics, 1977)
The Mathematical Statistics of Diversity and Abundance

Taillie Jr., Charles (The Pennsylvania State University, 1977)
Polymorphism and the Role of Hormones in Caste Differentiation of a Higher Termite Species Macrotermes michaelseni (Isoptera, Macrotermitinae)

Okot-kotber, Billie Moses (University of Dijon, 1979)

Biometric studies coupled with physiological investigations have made it possible to propose a scheme of post-embryonic development and polymorphism in Macrotermes michaellseni. ...(continue from the attached PDF)
Polymorphism and the role of hormones in caste differentiation of a higher termite species macrotermes michaeseni isoptera, macrotermitinae

Okot-Kotber, Billie Moses (University of Dijon, 1979-12)

Termites are social insects of the order Isoptera. They are predaninant in the Tropics and dwell in dry or damp wood, underground in soil or in mounds or nest in trees. The basic food source for termites are cellulose ...
Mechanisms Of Sorghum Resistance To The Spotted Stalk borer , Chilo Partellus ( Swinhoe) Lepidoptera Pyralidae

Masina, Greenman Themba (Universi ty of Nairobi, Department of Zoology., 1982)

Stalkborers are some of the most important pests of cereal crops in the tropics and in particular the semi-arid areas. Chilo partellus, the spotted stalkborer, is one of the most notorious pests of sorghum in that it occurs ...
The Growth, Development and Survival of Spodoptera Exempta (Walk.) (Lepidoptera, Noctuidae) on some Selected Grass Species

Yarro, Jacob Ghadwe (University of Dar es Salaam, 1982)

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Host resistance to tick infestations in two breeds of goats, using the tick rhipicephalus appendiculatus neumann (the ’brown ear" tick)

Charles, Bagwasi Maranga (University of Nairobi, 1983)

The objectives of this study were to observe and ocmpare the levels of any innate resistance and development of any acquired resistance to Fhipicephalus apoendiculatus ticks in two breeds of goats, viz. the Local East ...
Juvenile Hormone Regulation of Vitellogen Genes in the African Migratory Locust

Dhadialla, Tarlochan Singh (Queen's University, 1983)

In Locusta migratoria, vitellogenin (Vg) synthesis is normally induced by juvenile hormone (JH) only in adult females. Larval and adult female and male locusts were tested for inducibility of Vg synthesis by the synthetic ...
Studies on Factors Influencing the Establishment and Development of Filaria in Mosquitoes

Irungu, Lucy Wachuhi (1984)

Factors affecting the establishment and deveiliopment of Brugia and Wuchereria microfilariae in various strains of C. quinquefasciatus, C.p. molestus, An. stephensi and Ae . aaegypti SS were studied. The investigations ...
Attempts on the Sythesis of the Pheromone Component Lineatin

Kagaruki, Serry Rwehikiza Francis (University of Oslo, 1984)
Attempts on the Synthesis of the Pheromone Component Lineatin

Rwehikiza, Serry Francis (University of Oslo, 1984)

poorly achieved. Direct alkylation on the alkenal V with 8-methallylmagnesium chloride followed by oxidative cleavage of 2,5,5-trimethylocta-l,7-diene-4-ol (VIlI) and methylenation via a Wittig reaction gave an improved ...
Induction of immunity in sheep to rhipicephalus appendicutus (Newmann, 1901) antigens

Wishitemi, Lisamula Bob (Kenyatta University, 1985)

Immune resistance to infestation by an ixodid tick, Rhipicephalus appendiculatus, the vector of the African cattle disease, East Coast Fever was induced in sheep by immunisation with tick extracts. Six groups of four sheep ...
Studies on Resistance Acquired by Rabbits Experimentally Infested with Rhipicephalus Evertsi Evertsi (Neumann, 1897) (Acarina: Ixodidae)

Barnabas, Charles Njau (University of Dar es Salaam, 1985)

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Biochemical and Genetic Studies of Antibody (IgM) Producing Cells

Moreno, Luz Vazquez (The University of Arizona, 1985)

We have chosen the urine innurioglobulin M (IgM) as system to study glycoprotein biosynthesis and carbohydrate processing. Secreted IgM heavy chain (m) has five glycoasylation sites which location and structures have been ...
Biosystematic studies of the termite genus Odontotermes (Holmgren) with special reference to Kenya

Bagine, R.K .N. (Makerere University, 1986)

Odontotermes is a large and diverse genus containing some species that are pests in agriculture and forestry.Work on genus has been hampered by taxonomic difficulties. The genus has never been revised since it was erected ...
The Influence of Mode of Transmission of Trypanasoma Congolense on the stability and Induction of Resistance to Samorin

Jack H, Pen-Mogi (Makerere University, 1986)
Studies on Leishmaniae of Lizards

Wadeeda, Forawi (University of Khartoum, 1986)

Check PDF for the abstract
The Host Relationships of the Tick Amblyomma Variegatum in Rabbits and Cattle

Abdullahi, Abdel Latif Ibrahim (University of Khartoum, 1986)

Repeated feeding of the different life stages of Amblyomma variegatum and Rhipicephalus appendiculatus on foμr groups of rabbits induced resistance in these animals. Resistance to the adults was manifested by reduced ...
Colonizing Responses of Maruca testulalis (Geyer) (Lepidoptera: Pyralidae) to Different Cowpea Cultivars in Relation to their Resistence/Susceptibility

Okech, Suleman H. O (Rivers State University of Science and Technology, 1986)

A comparison of the resistance/susceptibility levels of ten cowpea cultivars to the pod borer Maruca testulalis revealed that VITA l was the most susceptible. TVU 946 most resistant and VITA 5, chola local and kamboinse ...
Vitellogenin of the Tobacco Hornworm, Manduca Sexta: Properties and Endocytotic Incorporation into follicles

Osir, Ellie Onyango (University of Arizona, 1986)

Manduca sexta vitellogenin is a phosphoglycolipoprotein (Mr - 500,000) that contains two copies of the apoproteins (apovitellogenin-1, Mr 180,000 and apovitellogenin-11, Mr 45,000), 13 percent lipids, 3 percent carbohydrates ...

Now showing items 1-20 of 373

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