Browsing Chemistry by Issue Date

FACTORS AFFECTING FEMALE STUDENTS ACTIVE PARTICIPATION IN GROUP DISCUSSION GRADE 11 IN CHEMISTRY CLASS IN CASE OF BELE PREPARATORYSCHOOL

DEBELE GUDETA (201-09)

The contribution of the classroom participation for successful and effective teaching learning process is not questionable point. However, Bele preparatory School that found at Oromia region,Arsi Zone, Bele Gesgar ...

PREPARATION, CHARACTERIZATION, AND APPLICATION OF ROSEMARY OIL AND BEESWAX INFUSED PECTIN BIODEGRADABLE PLASTIC FOR PRESERVATION OF MANGOES

AYALNESH CHAFAKO CHAFEBO (202-08)

Fruits are vital to the human diet, providing essential nutrients, vitamins, minerals, bioactive compounds, and fiber, while also being enjoyed as a tasty dessert. In recent years, global fruit consumption has increased ...

SYNTHESIS A ND C HARACTERIZATION OF NOVOLAC RESIN AND THEIR KIN ETI C ST U DIES USING PHENOL-FORMALDEHYDE REACTIONCATALYZED BY HY DROCHLORlC ACID

NI GUS MESELE [Reg/No/ RMSc/273/01 (Arba Minch University, 2011-04)

Phenol- formaldehyde novolac resins have been synthesized using 1: 0. 75 molar ratio of Phenol · to Formaldehyde. In the resulting reaction solution, HCl was added dropwise, at twelve different ...

SYNTHESIS A ND C HARACTERIZATION OF NOVOLAC RESIN AND THEIR KIN ETI C ST U DIES USING PHENOL-FORMALDEHYDE REACTIONCATALYZED BY HY DROCHLORlC ACID

NI GUS MESELE (Arba Minch University, 2011-04)

Phenol- formaldehyde novolac resins have been synthesized using 1: 0. 75 molar ratio of Phenol · to Formaldehyde. In the resulting reaction solution, HCl was added dropwise, at twelve different ...

SYNTHESIS, CHARACTERIZATION AND PHOTOCTALYTIC ACTIVITY OF ALUMINIUM-IRON MIXED OXIDE NANOPARTICLES FOR PHOTODEGRADATION OF CONGO RED

YONAS WELDEMARIAM (ARBA MINCH UNIVERSITY, 2011-05)

n this study synthesis, characterization and photocatalytic application of alumina-iron mixed oxide nanoparticles has been made. Four series of alumina- iron mixed oxide catalysts (Fe203, Al203 ...

An Orbital Control of Substrate Reactivity on the Enzyme Xanthine Oxidase and the Substrate-Enzyme Binding Cofactor Reduction

KIBROM TEKLA (Arba Minch University, 2011-05)

In humans, the xanthine oxidase enzyme plays an important role in physiological hydroxylation of hypoxanthine to xanthine, xanthine to. uric acid and it has been a target of drugs against disease ...

Mechanism of Nicotinate Dehydrogenase and its activity compared with Molybdoenzymes Possessing Sulfido, Oxo and Tellurido Terminals in Their Reductive Half-Reaction Active Site

SOFANI TAFESSE (Arba Minch University, 2011-05)

The active site of Nicotinate Dehydrogenase is somewhat similar to xanthine oxidoreductase (XOR) except the equatorial sulfido group in Xanthine oxidase is replaced by sellenido group in ...

Investigation of the Source of Dual Fluorescence in Quinoline-2- carboxylic acid through Conformational Analysis

Tesfaye Tades s e (ARBA MINCH UNIVERSIT, 2011-06)

In this study steady state absorption, fluorescence excitation and emission spectra of quinoline-i-carboxylic acid have been examined in non-polar and polar solvents and computational calculation ...

SYNTHESIS, CHARACTERISATION AND CATALYTIC ACTIVITY OF COBALT AND NICKEL METAL COMPLEXES DERIVED FROM N-BENZYLIDENEANILINE SCHIFF BASE LIGAND

MELAKU MESHESHA TULU (Arbaminch university, 2016-06)

Transition metal complexes have played a significant role in the enormous growth of the field of catalyst. Schiff bases ligands are able to stabilize many different metal ion(s) in various oxidation states, ...

SYNTHESIS, CHARACTERISATION AND CATALYTIC ACTIVITY OF COBALT AND NICKEL METAL COMPLEXES DERIVED FROM N-BENZYLIDENEANILINE SCHIFF BASE LIGAND

MELAKU MESHESHA TULU (ARBA MINCH, ETHIOPIA, 2016-06)

Transition metal complexes have played a significant role in the enormous growth of the field of catalyst. Schiff bases ligands are able to stabilize many different metal ion(s) in various oxidation states, controlling ...

GREEN SYNTHESIS, CHARACTERIZATION, ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF SILVER NANOPARTICLES SYNTHESIZED USING AQUEOUS EXTRACT OF MORINGA STENOPETALA LEAVES

ABAMBAGADE ABERA MITIKU; ABAMBAGADE ABERA MITIKU (Arbaminch university, 2016-10)

Nanotechnology is the most promising field for generating new applications in medicine. Green synthesis of AgNPs is an efficient, fast, cheap, non-toxic, simple, and eco-friendly than commonly used ...

GREEN SYNTHESIS, CHARACTERIZATION, ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF SILVER NANOPARTICLES SYNTHESIZED USING AQUEOUS EXTRACT OF MORINGA STENOPETALA LEAVES

ABAMBAGADE ABERA MITIKU (2016-10)

Nanotechnology is the most promising field for generating new applications in medicine. Green synthesis of AgNPs is an efficient, fast, cheap, non-toxic, simple, and eco-friendly than commonly used physicochemical ...

ASSESSMENT OF HEAVY METAL STATUS IN FRESH AND CANNED FRUITS, VEGETABLE COLLECTED FROM SUPERMARKET AND IRRIGATION FARMS OF AKAKI, AWASH, ARBA MINCH AREAS, ETHIOPIA.

BELSTI LELISA FITA (ARBA MINCH, ETHIOPIA, 2018-05)

Despite the nutritional benefits obtained from fruit and vegetable consumption, the presence of heavy metals accompanying it from the environment draw scientific concerns as this aﬀects human health. Food chain ...

Investigation of macro and micro minerals in Apple Fruit and the soil where Apple grows: Arba Minch, southern Ethiopia

Admasu Yulla (ARBA MINCH, ETHIOPIA, 2018-06)

Apple is a fruit tree that grown native in temperate climate. However apples can also be grown in other climates, like subtropical and tropical areas at high altitudes. It has the capability to absorb metal ions from ...

STUDIES ON THE DEVELOPMENT OF FUNCTIONAL FOOD PRODUCT (INJERA) THROUGH THE ADDITION OF CISSUS QUADRANGULARIS STEM POWDER TO TEFF FLOUR.

TSEGAYE KELBORE (ARBA MINCH UNIVERSITY, 2019-02)

Injera is one of the common food which is highly consumed daily in all parts of Ethiopia. This study was conducted to investigate the development of functional food (injera) through the addition of Cissus quadrangularis ...

ARBA MINCH UNIVERSITY COLLEGE OF NATURAL SCIENCES SCHOOL OF GRADUATE STUDIES DEPARTMENT OF CHEMISTRY

FITSUM HAILEMICAEL (2019-03)

Ecological disruptions and loss of productivity are foreseeable dangers facing Lake Abaya and the surrounding wetlands. This in turn affected communities whose livelihood depends on fish and other Lake resources. The ...

CHARACTERIZATION OF NANO CaO AND OKRA (Abelmoschus esculentus) POWDER FOR THE PROCESSING OF SUGARCANE JUICE

Majur Mading Makur Buoi Advisor (ARBA MINCH UNIVERSITY, 2019-06)

The sugarcane is grown as an industrial crop for the production of sugar, food and bio-energy. The main challenge during the production is attaining purity with high yield. Clarification is a key step in the production. ...

EVALUATING THE EFFECTS OF PRETREATMENTS AND DRYING METHODS ON PHYSICOCHEMICAL CHARACTERISTICS OF PLUM FRUIT (PRUNUSDOMESTICA L. ) FOR PRUNE PRODUCT DEVELOPMENT

YEMAWAYSH ZEWDIE (ARBA MINCH UNIVERSITY, 2019-06)

The plum fruit has essential medicinal and nutritional values. However, the seasonal behavior of its production hinders uniform distribution and availability to every corner of the country. Moreover, the as-produced fresh ...

POTENTIAL OF BANANA PEELS WASTES FOR BIOETHANOL PRODUCTION USING ZYGOSACCHAROMYCES FERMENTATI

Tigabu Assefa (2019-08)

Banana peels are lignocellulosic agricultural fruit wastes that have the potential to produce bioethanol as a renewable form of energy. The waste utilization plays a vital role to minimize pollution and make possible to ...

EXTRACTION AND CHARACTERIZATION OF GELATIN FROM NILE TILAPIA (OREOCHROMIS NILOTICUS) SKIN WASTES AND ITS APPLICATION AS STABILIZER ON YOGHURT

ASCHALEW DEMSSIE ALEMU; ASCHALEW DEMSSIE ALEMU (2020-06)

Recovery of fish skin proteins existing in the by-product materials and using them as functional ingredients in food systems is a very exciting and promising alternative of mammalian gelatin. Fish skin is a byproduct ...

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