Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

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. ...

THE ROLE OF NEEM (Azadirachta indica) SEED AND GARLIC (Allium sativum) BULB POWDERS AS BIO-PESTICIDES AGAINST ADULT MAIZE WEEVIL (Sitophilus zeamais Motsch.) IN STORED MAIZE

Abstract: Post-harvest losses are one of the major causes of food insecurity in the developing world. The present study was planned to investigate the effect of neemseed and garlic bulb powders in control of maize weevil and prolonged storage of maize grains. A 3x3x2 factorial experiment was laid in a Complete Randomized Design (CRD) replicated two times. The result indicated that all the treatments had shown high repellence against maize weevil at all amounts of treatments (5, 10, and 15 gr...

MICROBIOLOGICAL QUALITY AND SAFETY OF FRUIT JUICE SERVED IN CAFES OF DIRE DAWA TOWN, EASTERN ETHIOPIA

Abstract: Fresh fruits are essential components of the human diet and there is considerable evidence of the health and nutritional benefits associated with the consumption of fresh fruits. However, during processing contamination from raw materials, equipment or food handlers could be easily transferred to the final product of fruit juices resulting food-borne illnesses. Therefore, the aim of this research was to evaluate the microbiological safety of avocado, mango and papaya fruit juices a...

PREVALENCE AND ANTIBIOTIC SUSCEPTIBILITY OF BACTERIAL UROPATHOGENS AMONG PATIENTS OF URINARY TRACT INFECTION

Abstract: Urinary tract infection is one of the most prevalent infections caused by different pathogens. This study was designed to determine the prevalence and antimicrobial susceptibility patterns of uropathogens among patients visiting Hasasa Health Center from March to May 2016.A total of 384 patients participated in this study. Culturing and identification of uropathogens were performed by using agar (Mac-Conkey agar and blood agar) and biochemical test. Antimicrobial resistance testing...

THE ROLE OF ACETYLSALICYLIC ACID IN DELAYING POSTHARVEST RIPENING OF APPLE (Malus domestica Borkh.)FRUIT

Abstract: Apples are the natural source of dietary mineral salts, vitamins, antioxidants, fiber, organic acids and sugars. Reduction of post-harvest losses and quality deterioration are essential in increasing food availability from the existing production. Minimizing this loss has a great significance for food security, economic growth and welfare of the society. This study was planned to investigate the role of asprin (acetylsalicylic acid) treatment in improving post harvest quality, shel...


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