Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Molecular Prevalence and Diversity of Zoonotic Bacteria of Invasive Rattus from South Africa, with Emphasis on the Genera Rickettsia and Streptobacillus

Abstract: The study investigated the origin and diversity of the three matrilineally-defined invasive, commensal Rattus species, namely R. norvegicus, R. rattus and R. tanezumi known to occur in South Africa after routine identification of the species using molecular techniques. Subsequently, their role as potential zoonotic disease reservoirs in primarily urban environments with particular interest in their potential to transmit and spread zoonotic disease through direct contact as well as ...

Evaporative cooling capacity and heat tolerance on Kalahari Desert birds : effects of body mass and phylogeny

Abstract: The roles of phylogeny and body size in avian heat stress physiology, and how they interact to set the upper limits to heat dissipation capacity, are largely unexplored. Determining thermal end points and maximum capacity for evaporative heat dissipation in species from diverse ecological guilds and evolutionary clades is vital for understanding species-specific vulnerability to future climatic scenarios. I measured evaporative water loss (EWL), resting metabolic rate (RMR) and bod...

Personality, Hormonal Correlates and Parasite load in the Eastern Rock Elephant Shrew

Abstract: Inter-individual variation in behaviour, or as it has now come to be known, personality, has been shown to affect many different components of fitness in animals. A concept that used to be thought of as background ‘noise’ has come to explain much of the variation we observe within populations and between individuals. The personality of an animal can affect how an animal utilises its environment. In a heterogeneous environment this may increase the potential to find limiting res...

Application of RFM Model on Customer Segmentation in Digital Marketing

Customers play a pivotal role in the success of any business. The ability to attract and retain the right clientele, who consistently engage with a company's products and services, hinges on a thorough understanding of their purchasing behavior. Successful businesses tailor their offerings to meet the unique requirements and preferences of their customers. Utilizing marketing analysis tools, such as the RFM model, facilitates the segmentation of customers based on distinct parameters, enablin...

Biometric-Based Examination Monitoring System Using Facial Recognition: Case Study of Yaba College of Technology

ABSTRACT: Examination malpractice and student impersonation is a rising concern in tertiary institutions of learning in Nigeria. Majority of the students nowadays involve in the examination malpractices. Examination monitoring is one of the major approach to ensure quality assurance of school products (graduates). A qualitative examination monitoring will have zero tolerance to examination malpractices. The current method of monitoring of examination in the various school which are manual is...

PROTOCOL OPTIMIZATION FOR IN VITRO PROPAGATION OF THREE SELECTED ENSET (Ensete ventricosum (Welw.) Cheesman) VARIETIES; YANBULE, MESENA AND ENDALE THROUGH SHOOT TIP CULTURE

Abstract: Enset (Ensete ventricosum (Welw.) Chessman) has socio-cultural, ethno-medicinal and economic use values. Nearly all enset genotypes are being threatened by bacterial wilt disease upon conventional propagation. Therefore, this research was designed to develop mass in vitro propagation protocol for three elite enset varieties from shoot tip explants. The experiment was laid out in CRD with three replications in factorial arrangement. Apart from ethanol (70%), sodium hypochlorite (NaO...

EFFECT OF DILUTE SULFURIC ACID PRE-TREATMENT ON BIO-ETHANOL PRODUCTION FROM Phaseolus vulgaris DRY SEED POD USING Saccharomyces cerevisiae AS INOCULANT

Abstract: Sustaining fossil fuel and the formation of a sizeable environment are trials maintained through the production of renewable energy as a biofuel. Bioethanol is one of the mainly important alternative sources of energy, which is produced from the several of cheapest materials includes starch, lignocellulose, celluloses, and other different waste materials especially agro waste. Dilute sulphuric acid pretreatment of lignocellulosic material is the main process in ethanol production d...

SEROTYPING AND MOLECULAR CHARACTERIZATION OF FOOT AND MOUTH DISEASE OF CATTLE IN CENTRAL ETHIOPIA

Abstract: Foot and mouth disease (FMD) is one of the most economically important, highly contagious and trans-boundary animal diseases in developing countries including Ethiopia causing huge amount of economical loses in different geographical areas of the country. However, the information about genetic characteristics and strains of FMD virus circulating in Ethiopia is scarce. A cross sectional study was conducted between September 2016 and April 2017 to undertake serotyping and molecular c...

PHYTOCHEMICAL SCREENING AND ANTIMICROBIAL ACTIVITIES OF LEAF AND FRUIT EXTRACTS OF SMALL FLOWERED MALLOW (Malva parviflora L.)

Abstract: Malva genus (mallow) is widespread in tropical and temperate region belongs to the family Malvaceae. Malva parviflora L. is used as a food and also widely used in traditional and modern medicine for so many treatments. The aim of the present study was to investigate phytochemical screening and antimicrobial activity of small flowered mallow (Malva parviflora). Qualitative Phytochemical screening indicated the methanolic leaf extract indicated the presence of te rpenoids, flavonoids...

GENETIC DIVERSITY AND ASSOCIATION OF SEED YIELD AND RELATED TRAITS IN OKRA [Abelmoschus esculentus (L.) Moench] GENOTYPES

Abstract: Ethiopia is claimed as the likely center of origin for okra [Abelmoschus esculentus (L).Moench], but few studies were conducted to assess the diversity of the crop in the country. Moreover, no attempt has been made to assess the diversity of okra genotypes for seed yield and related traits though the crop is known for the production of quality edible oil. Therefore, this study was conducted with the objectives of assessing genetic variability among okra genotypes for seed yield and...

GREEN SYNTHESIS OF SILVER NANOPARTICLES USING VERBENA OFFICINALIS L. ROOT EXTRACTS AND THEIR ANTIBACTERIAL ACTIVITY AGAINST ESCHERCHIA COLI AND STAPHYLOCOCCUS AUREUS

Abstract: Green nanoparticle synthesis techniques for various biological activities and medical applications are desired because of their bio-compatibilit. Hence, in this study, silver nanoparticles (AgNPs) were synthesized using root extracts (aqueous, methanol and hexane) of V.officinalis. The antibacterial efficacy of the nanoparticles was assayed by the Kirby–Bauer disc diffusion method against bacterial pathogens such as Escherichia coli and Staphylococcus aureus. The minimum inhibito...

YNTHESIS, CHARACTERIZATION AND SORPTION BEHEVIOUR OF Ce-MOF FOR THE REMOVAL OF PHOSPHATE AND FLUORIDE IONS FROM AQUEOUS SOLUTION

Abstract: The wastewater treatment industry has identified the discharge of inorganic anions such as phosphate and fluoride into water as a risk to the natural environment and human health. Among various methods used to remove phosphate and fluoride anions, adsorption is widely used because of its low cost, ease of use and simplicity. In this study, cerium-based organic metal frameworks was proposed as adsorbent to remove phosphate and fluoride ions from water.. The aim of this work was to s...

PREVALENCE OF INTESTINAL PROTOZOAN PARASITIC INFECTIONS AMONG SCHOOL CHILDREN AND ITS ASSOCIATION WITH PARASTOLOGICAL QUALITY OF DRINKING WATER SOURCES OF GURSUM DISTRICT, FUGNAN BIRA TOWN, O

Abstract: Intestinal protozoan parasites are among the most common human infections globally. They are distributed throughout the world with high prevalence rates especially in developing countries including Ethiopia. This study was conducted to assess the prevalence of intestinal protozoan parasitic infections among School children and their associations with parasitological quality of water sources in Gursum Woreda, eastern Ethiopia. The design of the study was a descriptive cross-sectiona...

ASSESSMENT OF STUDENTS’ ALTERNATIVE CONCEPTIONS ON THE CONCEPTS OF CHEMICAL THERMODYNAMICS USING A FOUR-TIER DIAGNOSTIC INSTRUMENT

Abstract: Correct identification of misconception is an important first step in order to gain an understanding of student learning. More recently, four- tire multiple choice test have been found to be effective in assessing students ’alternative conception. The purpose of this study was using a four tier test to assess and identify students’ alternative conceptions about chemical thermodynamics concepts. The study was carried out at two preparatory schools of Babile Woreda (Babile and Bi...

CHEMICAL PROFILE AND ANTIMICROBIAL ACTIVITIES OF ESSENTIAL OILS OF EUCALYPTUS GLOBULUS LEAVES

Abstract: Eucalyptus globulus is one of the abundant tree species in Ethiopia known for medicinal values of its essential oils. The essential oil composition of a given species may vary with environmental factors. In this study, leaf of essential oil compositions and their antimicrobial activities were analyzed from E. globulus sampled from Haramaya University (HU) and Entoto Park (EP). Essential oils were extracted by steam distillation method and their compositions were analyzed using GC. ...


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