Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

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...

ARBUSCULAR MYCORRHIZAL FUNGI ABUNDANCE AND DIVERSITY ACROSS DIFFERENT LAND-USE TYPES IN JABI TEHNAN WOREDA WESTERN GOJAM, ETHIOPIA

Abstract: Arbuscular mycorrhizal fungi (AMF) are ubiquitous soil organisms. They form symbioses with majority of terrestrial plants and contributor to mineral and water uptake, plant biodiversity, productivity, ecosystem stability and function. However, AMF community structure and function are affected by land use and land cover changes. This necessitates the exploration of the AMF land- use change association within selected agro-ecosystems in the country. To this end, a site was selected a...

MICROPROPAGATION OF ENDOD (Phytolacca dodecandra) L ′Herit THROUGH LEAF CULTURE

Abstract: Endod (Phytolacca dodecandra L’Heit var. E-44 and E-17) is medicinal plant of high saponin content used as molluscicide to control Schistosomiasis. The aim of, this study was to develop a micropropagation protocol for P.dodecandra. The E17 and E44 variety leaf explant was sterilized and cultured on MS media supplemented with different types of concentration and combination of cytokinins and auxins for shoot initiation, multiplication and root initiation. Local bleach (Berekina) 3...

PHYTOCHEMICAL SCREENING FROM LEAVES OF DATURA STRAMONIUM L. AND JUSTICIA SCHIMPERIANA AND EVALUATION OF THEIR ANTIMICROBIAL PROPERTIES AGAINST SELECTED HUMAN ENTERIC BACTERIA

Abstract: The growing phenomenon of antibiotic resistance, particularly to pathogenic microorganisms, in current medicine, has directed the concern of scientists for finding novel antimicrobial agents from plant origin with negligible side effect. The aim of this study was to screen the major secondary compounds of leaves of D. stramoinum and J. schimperiana and to evaluate their antimicrobial properties against (S. aureus, S. typhi and S. boydii). Extraction was done by maceration of leaf p...

FREQUENCIES OF THE ABO BLOOD GROUP SYSTEM AND ITS RELATIONSHIP WITH Helicobacter pylori INFECTION AMONG PATIENTS WITH GASTROINTESTINAL COMPLAINTS IN ASELLA TEACHING AND REFERRAL HOSPITAL, ARS

Abstract: Helicobacter pylori are a small, spiral-shaped bacterium that lives on the surface of the stomach and duodenum. H. pylorus is closely associated with onset of diseases such as gastric ulcers, duodenal ulcers, gastritis and gastric cancers. The aim of this study was to determine the frequencies of ABO blood group system and its relationship with H. pylori infection among patients with gastrointestinal complaints at the Asella Teaching and Referral Hospital. A total of 422 patients o...

PHYTOTOXICITY OF Lantana camara L. EXTRACTS AND SOIL FROM BENEATH ITS CANOPY ON CABBAGE (Brassica carinata A.)

Abstract: Lantana camara is an invasive weed species that has allelopathic effects on crops and other indigenous associated plants. Allelochemicals from such plants may also have positive or negative impact on soils. Therefore, the research was carried out to investigate the allelopathic effect of leaf extracts of Lantana camara and soils invaded by it on Brassica carinata. Leaf extracts of Lantana camara were prepared with water, hexane and methanol, while distilled water alone was used as ...

ABO BLOOD GROUP DISTRIBUTION AND ITS RELATIONSHIP WITH SOME INTESTINAL PROTOZOAN PARASIC INFECTIONS IN WARA JARSO DISTRICT, NORTH SHEWA ZONE, OROMIA REGIONAL STATE,ETHIOPA

Abstract: The Frequencies of ABO blood groups system phenotypes,alleles, and genotypes vary worldwide and are not found in equal frequencies even among ethnic groups.Part of the immune response is the production of globulins called antibodies to combat the invader.ABO blood group system has multiple associations with different infectious diseases including intestinal protozoan parasitic infections (IPPIs). Therefore, the aim of this study was to assess the distribution of ABO blood group sys...

ETHANOL PRODUCTION FROM SORGHUM STRAW WITH ACID PRETREATMENT USING Saccharomyces cerevisiae

Abstract: Fermentation is a metabolic process of microorganisms to obtain energy by breaking down organic compound. Sorghum straw was fermented with different concentration substrate (15gm, 30gm , 45g and 60gm) with 0.5% ,1% yeast in different fermentation period (4th day, 8th day, 12th and 16th days) with the aim of ethanol production from Sorghum straw. Among the different substrate concentration 15 gram of substrate mixed with 1% yeast produced high quantity of ethanol on 4th day of ferme...


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