Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

A Computerized Students' Records Management System: A Case Study of Faculty of Science and Technology Kampala International University Western Campus

ABSTRACTA computerized students' records management system(CSRMS) is a computer program designed to capture, store, manage the creation and maintenance of students' records in an organisation. Records management (RM)isthe practiceofcontrolling recordsofan organizationfrom the time they are created to the time of disposal which includes identifying, creating, classifying, using, storing, securing, retrieving, and destroying or permanently preserving records. Record...

A COMPUTERIZED STUDENTS' RECORDS MANAGEMENT SYSTEM A CASE STUDY OF FACULTY OF SCIENCE AND TECHNOLOGY KAMPALA INTERNATIONAL UNIVERSITY WESTERN CAMPUS

ABSTRACTAcomputerizedstudents'recordsmanagementsystem(CSRMS)isacomputerprogramdesigned to capture, store, manage the creation and maintenanceofstudents' recordsinanorganisation. Records management (RM)isthe practiceofcontrolling recordsofan organizationfrom the time they are created to the timeofdisposal which includes indentifying, creating,classifying,using,storing,securing,retrieving,anddestroyingorpermanentlypreservingrecords.Records management system(RMS)isa collectionofelementsinan orga...

Mathematical Modelling of the COVID-19 Pandemic with Demographic Effects

Abstract/Overview In this paper, a latent infection susceptible–exposed–infectious–recovered model with demographic efects is used to understand the dynamics of the COVID-19 pandemics. We calculate the basic reproduction number (R0) by solving the diferential equations of the model and also using next-generation matrix method. We also prove the global stability of the model using the Lyapunov method. We showed that when the R0 < 1 or R0 ≤ 1 and R0 > 1 or R0 ≥ 1 the disease-free ...

Units of Commutative Completely Primary Finite Rings of Characteristic pn

Abstract The characterization of the group of units of any commutative ring has not been done in general, and previous studies have restricted the classes of rings or groups under consideration. In this work, we determine the structures of the groups of units of commutative completely primary finite rings R of characteristic pn for some prime integer p and positive integer n.

GBS Mapping and Analysis of Genes Conserved between Gossypium tomentosum and Gossypium hirsutum Cotton Cultivars that Respond to Drought Stress at the Seedling Stage of the BC2F2 Generation

Abstract/Overview Cotton production is on the decline due to ever-changing environmental conditions. Drought and salinity stress contribute to over 30% of total loss in cotton production, the situation has worsened more due to the narrow genetic base of the cultivated upland cotton. The genetic diversity of upland cotton has been eroded over the years due to intense selection and inbreeding. To break the bottleneck, the wild cotton progenitors offer unique traits which can be introgressed...

Climbing Up the Hills: Expansion of Agriculture around the Ruma National Park, Kenya

Abstract/Overview A major factor driving changes in land use and land cover (LULC) is the human population growth associated with an expanded agricultural production. In the Lambwe valley in Homabay County, Kenya, the most important reason for accelerated population growth in the last decades was the control of the tsetse fly, the biological vector of trypanosomiasis. The goal of our study is to quantify the changes of LULC in the Lambwe valley in the last 30 years, giving special attenti...

Unit Groups of Some Classes of Power Four Radical Zero Commutative Completely Primary Finite Rings

Abstract Let R be a completely primary finite ring and J be its Jacobson radical. A class of such rings in which J4 = (0), J3 = (0) has been constructed. Moreover, the structures of their groups of units have been determined for all the characteristics of R. Mathematcs Subject Classification: Primary 13M05, 16P10, 16U60; Secondary 13E10, 16N20

Agronomic Characterization of Soybean and Bambara Groundnut Genotypes Grown on Different Soils of Lake Victoria Basin

Abstract/Overview Neglect and under-utilization of legumes such as soybeans and bambaragroundnuts are the reason for increased food insufficiency in the Lake Vic toria basin. Diversification of legumes into the cropping systems of LakeVictoria basin ensures protein rich diets and improved soil fertility. Thisstudy was carried out to evaluate agronomic characters of two soybean vari eties and two bambara groundnut landraces cultivated on different soils ofLake Victoria basin. Seeds of two ...

Recent Advances on Mercury Speciation in Aquatic Ecosystems, Health Effects and Analytical Techniques

Abstract/Overview Elemental mercury is not as poisonous as its congeners such as methyl mercury and dimethyl mercury, especially at trace levels. However, understanding the speciation mechanisms of mercury in aquatic ecosystems offers an opportunity to appreciate the dangers emanating from elemental mercury in the environment. Notably, elemental mercury is occasionally used in dental filling therapy which presents it as a non-poisonous element. Recent advances on mechanisms of elemental m...

Nonlinear H∞ Guidance Design for Missile against Maneuvering Target

Abstract/Overview A new guidance law is derived for missile against maneuvering target by adopting nonlinear H∞ control theory. The guidance law is based on three dimension (3D) nonlinear kinematics described by modified polar coordinate (MPC). In MPC, only three differential equations are used to describe the 3D relative motion between missile and target. The new guidance law is designed by solving the Hamilton-Jacobi-Isaacs (HJI) equation by simultaneous policy update algorithm (SPUA)...

Binomial Mixtures Based on Beta I Distribution and Its Generalizations with Application to a Two Stage Group Screening Design

Abstract/Overview When mixed, two distributions can form another distribution. Binomial distribution and beta distributions combine to form a binomial mixture with the latter being a prior distribution which is a continuous distribution. Skellam pioneered this study when he mixed binomial distribution with its parameter p taking beta distribution. The paper focused on construction of binomial mixtures, their properties, special cases and the application of the mixtures in a two stage grou...

Application of Three Parameter Generalized Beta I Distribution in Binomial Mixture

Abstract/Overview Two or more individual distributions can be mixed together to form a new distribution. According to Feller, this can be done using weights that sum up to unit. Also by considering a parameter which is a random variable taking another distribution then a new distribution ca be formed. The nature of the mixing distribution has effect on the new distribution formed. If the mixing distribution is continuous random variable, then the new mixture formed is also continuous. Ske...

Variation in Temperature and Nutrient Source Influence the Growth of Exserohilum Turcicum Mycelia Isolated from Sorghum

Abstract/Overview Turcicum leaf blight (TLB) caused by the fungus Exserohilum turcicum is a serious threat toproduction of maize and sorghum, since it damages photosynthetic leaves. Growth and development of E.turcicum pathogen is influenced by factors such as light, temperature, dew period, plant age and inoculumsconcentration. Tharaka Nithi County in Eastern Kenya where sorghum is actively grown has heterogenous climatic and edaphic conditions. It is currently unclear if variations in t...

An Application of Survival Analysis of Broilers in La Nyevu Poultry Farm in Kaloleni Sub- County

Abstract/Overview This research is about an application of survival analysis on broilers in laNyevu poultry farm in Kaloleni sub-county. Chapter one gives an insight into the introduction of the paper, chapter two discusses the methodology used, chapter three gives the results, chapter four discusses the findings briefly and chapter five gives the conclusions arrived at and some recommendations.

Optimal Allocation in Small Area Mean Estimation Using Stratified Sampling in the Presence of Non-Response

Abstract/Overview Sample survey provides reliable current statistics for large areas or sub-population (domains) with large sample sizes. There is a growing demand for reliable small area statistics, however, the sample sizes are too small to provide direct (or area specific) estimators with acceptable and reliable accuracy. This study gives theoretical description of the estimation of small area mean by use of stratified sampling with a linear cost function in the presence of non-respons...


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