Articles

 

Articles

Page 9 of 1144, showing 50 records out of 57178 total, starting on record 401, ending on 450

September 2018

African Journal of Mathematics and Computer Science Research
The half way series expansion

A new formula for mathematics is derived which gives the upper half of the series expansion of the expression (ay+b)2n, where n,  is a natural number. A proof of the new formula is given followed by a simple example to test its accuracy. This formula is helpful whenever n is large. Key words: Series Expansion, fluid models, Intermolecular Potential model  

Author(s): Alpha Ibrahim Turay  

September 2018

African Journal of Mathematics and Computer Science Research
Maximizing profit in the poultry farming sector: An application of the robust linear programming technique

Managing the limited resources of money, time and space poses a real problem in the livestock business in general and the poultry sector in particular. The stochastic linear programming with recourse will permit the formulation of a mathematical model that could easily be solved in order to attain the objective of maximizing profit but this will be hindered by the presence of some parameters like demand and supply which...

Author(s): Mathias A. Onabid and Therence A. Tchoffo  

September 2018

Journal of Philosophy and Culture
‘Mine to Win’: a Book that Binds Aspects of Ethiopian Christianity Education and Philosophy

The author of this book, Hiwot Teffera, is among the vibrant politers of the then generation called ‘YaTiwulid’. This period extends from 1972- 1992 , and many of them were young and involved in different political factions of the time. She and some of her friends are destined to share their experience, knowledge and reading; however, many could bear fruit  because of Red and White Terrors of the time....

Author(s): Asmamaw Addis and Solomon Girma  

September 2018

Journal of Philosophy and Culture
Moderate communitarianism is different: A Response to J. O. Famakinwa and B. Matolino

Moderate communitarianism is a thesis introduced into African philosophical literature by the Akan philosopher Kwame Gyekye. He suggests that this thesis better accounts for the Akan and, to some extent, African social set-up than what he calls radical communitarianism (a thesis which he attributes especially to John Mbiti and Ifeanyi Menkiti). However, Gyekye is criticised by J. O. Famakinwa and B. Matolino for...

Author(s): Hasskei M. Majeed  

September 2018

International Journal of Medicine and Medical Sciences
Collodiaphyseal angle in the diagnosis of coxa vara and coxa valga in adult Nigerans

Collodiaphyseal angle (CDA) is the angle formed between the femoral neck axis and the diaphysis axis. The aims of this study were to determine the normal range of collodiaphyseal angle in adults and to determine any difference in the collodiaphyseal angle between right and left femur and also between sexes. 340 subjects consisting of 170 (50%) males and 170 (50%) females were included in this study. Plain radiographs...

Author(s): Abiodun A. A., Ikem  I. C., Adeyemi D. O., Ofusori D. A. and Komolafe O. A.  

September 2018

Journal of Stored Products and Postharvest Research
Laboratory evaluation of six new cassava genotypes to Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) infestation

Two products, chips and flour, processed locally from six new cassava genotypes; 98/0505, 01/1368, 05/1636, 05/0473, 01/1371 and 01/1412 obtained from National Root Crops Research Institute (NRCRI), Umudike, Abia State, Nigeria were evaluated for losses (qualitative and quantitative) caused by rust red flour beetle Tribolium castaneum under storage conditions (25 to 30°C and 70 to 90% RH) in the General Laboratory,...

Author(s): Zakka U., Lale N. E. S., Onoriode A. H. and Ehisianya C. N.  

September 2018

Journal of Stored Products and Postharvest Research
A study on the causes of apple (Malus Domestica) fruit loss at Chencha Woreda of Gamo Gofa Zone, Southern Ethiopia

Apple (Malus domestica) is a temperate climate fruit tree grown in the highland climates. Specifically, it is widely and largely cultivated in the Gamo Gofa administrative zone at Chencha woreda in Ethiopia. Although there is inadequate information regarding the cause of fruit loss, some other details reveal the production status of the fruit in the area. This study was aimed at assessing the causes of apple fruit loss...

Author(s): Behailu A. and Kebede J.  

September 2018

Journal of Agricultural Biotechnology and Sustainable Development
Farmers’ knowledge and perceptions of leaf spot disease of groundnut and its management in Northern Region of Ghana

Groundnut (Arachis hypogea L.) is an important food source as well as cash crop for the people of Northern Ghana. The crop yield is low partly due to biological constraints which include diseases like leaf spot. A survey was conducted among 200 farmers in four districts of the Northern Region of Ghana, from June to August, 2014 using a structured questionnaire. The objectives of this study were to assess farmers’...

Author(s): Moses Neindow, Elias Nortaa Kunedeb Sowely and Abdul-Halim Abubakari  

September 2018

Journal of Media and Communication Studies
Management for sustaining the fishery resources in Pulicat estuary, India

The study aims to establish strategies on how to manage coastal fisheries conflicts and livelihood in Pulicat estuary. This estuary, lying in the east of the Tamil Nadu and Andhra Pradesh States in India, is the second largest brackish water body in India, the first being the Chilika estuary in the State of Odisha. The total area of the estuary is 759 km2 with many island as part of it. But only 360 km in the southern...

Author(s): S. Jerard Majella Francis and I. Arul Aram  

September 2018

Journal of Media and Communication Studies
And the Oscar goes to . . . Global Cinema!!! Taking a Close-Up Look at the Business and Legal Challenges and Opportunities of International and U.S. Film Industries

For over 120 years, the global cinema industry has been an important segment of the world economy which has had a significant impact on the economy and culture of countries. This article analyzes the world film industry, with a close up focused on the U.S. movie market, utilizing SWOT (Strengths, Weaknesses, Opportunities and Threats) as a strategic tool to consider the internal and external challenges and opportunities...

Author(s): Joyce Boland-DeVito  

September 2018

International Journal of English and Literature
A study of the portrayal of virginity in Ugandan novels

This paper examines the portrayal of virginity in Akiki K. Nyabongo’s, Africa Answers Back (1936), Mary Okurut’s Invisible Weevil (1998) and Jane Bakaluba’s Honeymoon for Three (1975). The study analyzes the place of virginity in African traditional marriage. The girls are trained by the elder mothers and aunts to remain a virgin until their wedding night. In Africa, virginity is highly valued that...

Author(s): Mary Naula, Joseph Jakisa Owor and Cornelius Wambi Gulere  

September 2018

International Journal of English and Literature
Capitalism versus narcissism: Death of a salesman's psychoanalytic critique

Arthur Miller's, Death of a Salesman seems to have lost some ground to its once established position as many critics of late downplayed the demise of its protagonist Willy Loman by inscribing the causes of his death on 'narcissism' and excessive self-importance other than delving into the deeper causes behind his tormented and isolated private life. However, the author argues that Willy's life gets...

Author(s): Nurul Anwar  

September 2018

Journal of Geology and Mining Research
Integrated geosciences prospecting for gold mineralization in Kwakuti, North-Central Nigeria

Geoscience prospecting for gold mineralisation was conducted in Kwakuti town located within Latitudes 9.362500°N to 9.387500°N and Longitudes 6.920833°E to 6.945833°E in Northern Nigeria. The deployed geosciences techniques comprise surface geological mapping, processing and analysis of aeromagnetic total magnetic field intensity data using Oasis Montaj software and X-ray fluorescence analysis of soil...

Author(s): Ejepu J. S., Unuevho C. I., Ako T. A. and Abdullahi S.  

September 2018

Journal of Yeast and Fungal Research
Optimization of nutritional and environmental conditions for biomass production and sporulation of entomogenous fungus Lecanicillium lecanii CA-1-G using two-stage cultivation system

Some factors on sporulation of Lecanicillium lecanii CA-1-G by one-time-at-a-factor have been studied. These factors include carbon and nitrogen sources, carbon-to-nitrogen ratios, mineral elements and vitamins together with water potentials, temperatures, dark/light cycles and pHs. On the basis of these results, together with “two-step” cultivation and orthogonal method, we optimized the culture conditions...

Author(s): Li Gao  

September 2018

Journal of Chemical Engineering and Materials Science
Production of bioethanol from stems of Sorghum saccharatum monitoring kinetic parameters of fermentation

The objective of this study was to evaluate the performance of three stumps of Saccharomyces cerevisiae in the ethanol bioconversion of the diluted stems of sweet sorghum (Sorghum saccharatum L.) and to monitor the kinetic parameters of fermentation. Therefore, different initial concentrations of three stems from S. cerevisiae are used to ferment the juice. The juice obtained was formulated from one kilogram (1 kg) of...

Author(s): I. Mossi, E. S. Adjou, C. P. A. Dossa, G. Nonviho M. M. Conforte Adda, B. B. Yehouenou and D. C. K. Sohounhloué

September 2018

International Journal of Water Resources and Environmental Engineering
Evaluation of canal water conveyance and on-farm water application for a small-scale irrigation scheme in Ethiopia

This study was conducted to identify and understand the current level of canal water conveyance and on-farm water application efficiency of Lemchek-Sewur small-scale irrigation scheme in Ethiopia. The water conveyance efficiency of canals was determined by estimating discharge at different segments. On-farm water application efficiency was evaluated from the amount of water actually applied and from soil moisture...

Author(s): Alebachew Shumye and Ing Pratap Singh  

September 2018

Journal of Agricultural Biotechnology and Sustainable Development
Genetic diversity of chickpea (Cicer arietinum L.) cultivars from Ethiopia by using ISSR markers

Inter Simple Sequence Repeat (ISSR) markers were employed to reveal genetic diversity and relatedness among 27 chickpea (Cicer arietinum L.) cultivars in Ethiopia. Four di-nucleotide repeat primers amplified 24 clear and reproducible bands of which 22 were polymorphic (91.67%). The genetic variation among 27 chickpea cultivars including 12 kabuli and 15 desi verities is high; in which desi type exhibited a genetic...

Author(s): Tadele Temesgen Gubae and Yohannis Petros  

September 2018

Journal of Stored Products and Postharvest Research
Monitoring the changes in chemical properties of red and white onions (Allium cepa) during storage

Effects of postharvest storage conditions and varietal differences on the chemical properties of onion bulbs were demonstrated. Fresh red and white onion varieties were stored for two months under three different storage conditions: ambient temperature (28-30ºC), refrigeration (5-7ºC) and control cupboard temperature storage (45-50ºC). Main and interaction effects of the two factors (storage and variety)...

Author(s): Olusola Samuel Jolayemi, Sanusi Shamsudeen Nassarawa, Oluranti Mopelola Lawal, Mopelola Ajoke Sodipo and Isaac Babatunde Oluwalana  

September 2018

International Journal of Nursing and Midwifery
Evaluation of the quality of postnatal care and mothers’ satisfaction at the university college hospital Ibadan, Nigeria

Globally, postpartum care is a neglected part of maternal health, even though 50% of maternal deaths occur in the first weeks after childbirth. Literature is sparse on the quality and content of postnatal care provided in Nigeria. This study aimed to assess the quality of Postnatal Care (PNC) for mothers using the World Health Organization (WHO) practice guideline of postnatal care. An exploratory cross-sectional design...

Author(s): Rose Ekama Ilesanmi and Janet Atinuke Akinmeye  

September 2018

International Journal of Nursing and Midwifery
Prevalence of male attendance and associated factors at their partners’ antenatal visits among antenatal care attendees in Bale Zone, South East Ethiopia

Male involvement in antenatal care helps to have safe delivery, especially in developing countries. The problem has been insufficiently studied in Ethiopia. Therefore, this study assessed male attendance and associated factors at their partners’ antenatal visits among antenatal care attendees in Bale Zone health facilities. Cross sectional study was conducted from May to June, 2017 among 609 pregnant mothers....

Author(s): Fetene Kassahun, Chanyalew Worku, Abebaw Nigussie and Gemechu Ganfurie  

September 2018

Journal of Diabetes and Endocrinology
Antidiabetic and anti- hyperlipidemic effects of ethanolic extract of Dryopteris dilatata leaves

The incidence of diabetes mellitus (DM) is increasing globally and it is a major source of concern. This study was undertaken to assess the antidiabetic effect of the ethanolic leaf extract of Dryopteris dilatata (ELEDD).Thirty adult Wistar rats with body weight (BW) of 120-150 g were randomly assigned to groups of five rats each (n=5). Groups 1 served as normal control; Groups 2-6 were diabetic groups; group 2 served...

Author(s): Akpotu Ajirioghene, Celestine Ani, Choice Nworgu, Okorie Pamela, Igwe Uzoma, Jide Uzoigwe, Adeyemo Mercy, Nwaeme Ogochukwu and Obinna Onwujekwe  

September 2018

Journal of Horticulture and Forestry
Farmer’s traditional practices and management methods of stored common bean (Phaseolus vulgaris L.) insect pests in the central region of Benin Republic

Common bean (Phaseolus vulgaris L.) is a legume that contributes to food security and poverty reduction in Benin. However, there is very little information on its production constraints, varietal diversity, storage practices, storage insect management, and seed system. While these information are necessary for use in breeding programs and a better conservation of this legume. To fill these gaps, ethnobotanical surveys...

Author(s): Loko Yêyinou Laura Estelle, Akpo Ahouélété Joel, Orobiyi Azize, Toffa Joelle and Dansi Alexandre

September 2018

Journal of Ecology and The Natural Environment
Land cover changes and their determinants in the coral rag ecosystem of the South District of Unguja, Zanzibar

This paper presents the findings on the study on land cover changes and their determinants in the coral rag ecosystem of the South District of Unguja. The study is based on data extracted from the 1975, 2009, and 2014 satellite images using remote sensing and geographical information systems (GIS) techniques. Additional data were collected through structured interviews in a household survey, focus group discussions, key...

Author(s): Mohamed K. Said and Salome B. Misana  

September 2018

Journal of Ecology and The Natural Environment
Governance of river basin: Gender dimension in framing issues at the local community level

Rivers are a vital part of the environment as they act as habitat for several life forms, of which the well-being of many livelihoods depends for survival. Yet, the misuse of river basins in most parts of the world particularly developing countries has intensified dramatically. Appling the concept of “framing” we attempted to understand how gendered perspectives play a role in the governance of a river basin...

Author(s): Agro, P. P. and Agyeman, Y. B.  

September 2018

Journal of Ecology and The Natural Environment
Structure and natural regeneration of woody species at central highlands of Ethiopia

The management of regeneration plays a vital role in sustainable forest practice by ensuring the future growing carbon stock and serving as an indicator of the forest condition of an area. In premises of the above-mentioned facts, the current study was conducted to investigate the population structure and regeneration status of woody species as an indicator for forest condition and to provide information on...

Author(s): Mammo Siraj, and Kebin Zhang  

September 2018

Journal of Ecology and The Natural Environment
Effect of cocoa farming intensification on biodiversity and ecosystem properties in southern Ghana

We investigated the effect of cocoa farming on biodiversity and ecosystem services under different cocoa management systems. The study was carried out in three cocoa producing districts in southwestern Ghana using Y-frame sampling scheme. Five 25 m × 25 m size plots were demarcated at 100 m intervals along in the cocoa farms and the natural forest reserves. Fifteen plots were demarcated in the cocoa farms per...

Author(s): Daniel A. Tetteh, Alex Asase , Kwesi Ofori-Frimpong and Daniel Attuquayefio  

September 2018

African Journal of Biochemistry Research
Lipase in biodiesel production

Although fossil fuels have been serving mankind for several centuries, their exploration and use bring about several environmental problems. Besides, fossil fuels are neither renewable nor sustainable. There is therefore a need to search for renewable alternatives which are sustainable and environmentally friendly. Biodiesel, chemically known as methyl ester, is a renewable and sustainable biofuel used to run diesel...

Author(s): Onyinyechukwu J. Chioke, Christiana N. Ogbonna, Chukwudi Onwusi and James C. Ogbonna  

September 2018

International Journal of Vocational and Technical Education
Theoretical knowledge competencies required by trade artisans in domestic and industrial electrical installations in Enugu State, Nigeria

Technological development especially in the field of electrical/electronics posses a great challenge for electrical trade artisans with obsolete skills. The need to enhance the relevance of these artisans necessitated this study to determine theoretical knowledge competencies they require for domestic and industrial electrical installations in Enugu State. One research question guided the study and two null hypotheses...

Author(s): T. I. Eze, J. I. Ezenwafor and S. N. Oluka  

September 2018

Journal of Horticulture and Forestry
Impact of land-use on tree and fruit morphometric variation of the bitter kola (Garcinia kola Heckel) in Benin: Insight for domestication and production.

Garcinia kola is an IUCN globally vulnerable species native in Benin where it is extinct in the wild. It is also one of the top ten priority non-timber forest products in Benin because of its socio-economic and medicinal values. Still, G. kola is neglected and underutilized. The morphological variation of G. kola traits was investigated in two land-use types (home gardens versus farmlands) where it is found in Benin...

Author(s): Colombe Dadjo, Mireille Toyi, Aggrey Bernard Nyende, Kolawolé Valère Salako and Achille Ephrem Assogbadjo  

September 2018

International Journal of Sociology and Anthropology
Liberal feminism: Assessing its compatibility and applicability in Ethiopia context

As of the feminist theory varieties, liberal feminism is a type of gender reform feminism that emanates from the liberal thought. This paper critically reviews the appropriateness and applicability of liberal feminist theory and strategies in the context of Ethiopia in attempting to achieve gender equality and to reduce women oppression and subordination. The paper looks at the laws, polices and strategies of Ethiopia...

Author(s): Bimer Eyayu Enyew and Alemeneh Getaneh Mihrete  

September 2018

African Journal of Plant Science
Integrated management of Aspergillus species and aflatoxin production in groundnut (Arachis hypogaea L.) through application of farm yard manure and seed treatments with fungicides and Trichoderma species

Groundnut (Arachis hypogaea L.) is an important cash crop in the lowland areas of Ethiopia. However, prevalence of Aspergillus invasions and subsequent aflatoxin contamination compromises the quality of groundnut kernels. This study was conducted to evaluate the effect of farm yard manure (FYM) and seed treatments against Aspergillus species pod colonization and aflatoxin accumulation under field conditions. The...

Author(s): Abdi Mohammed, Alemayehu Chala, Chris Ojiewo, Mashilla Dejene, Chemeda Fininsa, Amare Ayalew, David A. Hoisington, Victor S. Sobolev and Renee S. Arias  

September 2018

African Journal of Plant Science
Physiological characterization of NADP-malic enzyme activity under 2,4-D toxicity in an aquatic fern, Azolla pinnata R.Br.

This work proposes NADP-ME activity as bio-indices for herbicidal sensitivity in Azolla pinnata R.Br. under 2,4-D toxicity. Azolla fronds were illuminated under saturated photosynthetic flux and bicarbonate induction. There was significant variation in the NADP-ME activity under light and dark conditions. This increased more when varying concentrations of 2,4-D were used for the up regulation of enzyme activity...

Author(s): A. Kumar De, B. Sarkar, I. Saha, A. Ghosh, N. Dey and M. K. Adak  

September 2018

African Journal of Plant Science
Effects of seedling age and rates of phosphorus fertilizer on growth and yield performance of onion (Allium cepa L.) under irrigation at Alage, Central Rift Valley of Ethiopia

Onion is an important cultivated crop as a condiment as well as a source of income for many farmers in Ethiopia. However, the productivity of the crop is much lower due to different problems. A field experiment was conducted to determine the effect of seedling age and phosphorus rate on growth and yield performance of onion at Alage, Central Rift Valley of Ethiopia, during 2016/2017 season. The treatments comprised...

Author(s): Tilaye Anbes, Walelign Worku and Hussien Mohammed Beshir  

September 2018

African Journal of Plant Science
Genotype and genotype by environment interaction and grain yield stability of medium maturity groups of soybean [Glycine max (L.) Merrill] varieties in Western Oromia, Ethiopia

The objectives of this study were to identify high yielding and stable medium maturity soybean varieties across environment and examine the influence of genotype × environment interaction (GEI) on grain yield of soybean varieties in western Oromia.  Seven early soybean varieties were evaluated at five locations (Bako, Gute, Billo, Chewaka and Uke) using randomized complete block design (RCBD) with three...

Author(s): Adane Arega, Alemayehu Dabessa, Meseret Tola and Chala Dabala

September 2018

African Journal of Political Science and International Relations
Changing aid and diplomatic relations: New development actors and Norway in Africa

Increased engagements of New Development Actors in Africa since the turn of the millennium have attracted a lot of scholars’ and policy-makers’ attention. While the direct effects of new development actors’ relation with Africa have been examined by many researchers, not much researched work on the indirect effects via the response of third countries have been done. This article explores whether and...

Author(s): Michael Oduro Asante  

September 2018

African Journal of Political Science and International Relations
Civil society under assault in Ethiopia

Since the enactment of the Charities and Societies Proclamation 621/2009 in Ethiopia, civil societies were not performing their proper role for the advancement of the country’s democracy. The proclamation places excessive restrictions on the work of civil society organizations in the country. This, in turn, makes the public passive to engage in the politics of the country, rather the law gives ultimate power for...

Author(s): Tewodros Woldearegay  

September 2018

African Journal of Political Science and International Relations
Demystifying the concept of state or regulatory capture from a theoretical public economics perspective

State capture is one form of corruption that has received very little research interest over the years. This could be attributed to the fact that many societies particularly in the developing world seem to have institutionalized it. State capture is a manifestation of government failure which involves the manipulation of bureaucratic rule and formal procedures by business and political elites through family ties,...

Author(s): Mulenga Chonzi Mulenga and James Nilesh Mulenga  

September 2018

International Journal of Water Resources and Environmental Engineering
Performance evaluation and economic analysis of solar photo-voltaic water pumping systems: Case of Abakore borehole water supply system in Kenya

A solar photovoltaic (PV) water pumping system was investigated to determine performance and economic viability. An in-built data logger was used to collect real time data on key performance parameters. Performance indicators were defined and determined, while economic viability was analyzed using life-cycle cost (LCC) method and these costs were compared with a diesel generator pumping system. Solar irradiance varied...

Author(s): James Origa Otieno, Christian Thine Omuto and Antony Ayub Gitau  

September 2018

Journal of Soil Science and Environmental Management
Applicability of the Mehlich-3 method for the site-specific soil nutrient management in Northern Mozambique

Mehlich 3 (M-3) is a multi-nutrient extractant which provides a rapid and cost-effective soil test for various soils. This study investigated the applicability of M-3 for cation and micronutrient determination under the specific soil fertilization and crop rotation given in northern Mozambique. Cations and micronutrients extracted with M-3 were compared with the classical methods; neutral ammonium acetate (NH4OAc) for...

Author(s): Monrawee Fukuda, Satoshi Nakamura, Hisashi Nasukawa, Kazuhiro Naruo, Momade M. Ibraimo, Keiichiro Kobayashi and Tetsuji Oya  

September 2018

International Journal of Peace and Development Studies
Rural development: Lessons never learnt

Life is supposed to be a great teacher, but in the development field lessons have never been learnt because errors of decades ago continue being entrenched today, by more enlightened people. This paper deploys critical theories of rural development and community participation to explain why communities resist development projects. One such incident is community resistance to a donor-funded mega irrigation project in...

Author(s): Shadreck Tanyanyiwa  

September 2018

International Journal of Peace and Development Studies
Community participation in transformation of rural livelihoods and climate smart farming technologies in the semi-arid lands of Kenya

Semi-arid areas in developing countries continue to depend on rain-fed agriculture which is exacerbated by climate change and poor governance. Despite efforts and investments by governmental and non-governmental organizations to address the issue of food insecurity in the semi-arid areas of Kenya, the problem still persists. The communities have designed themselves to be resource poor whereas they are not. This paper...

Author(s): Jane Mutune and Abdimajid Nunow

September 2018

International Journal of Psychology and Counselling
Prevalence and associated factors of stress among undergraduate students in Ambo University: Implication for Intervention

The study aims to assess the prevalence and associated factors of stress among Ambo University students. Institute based cross-sectional study was conducted on a sample of 343 undergraduate students at Ambo University. Data were collected using the Student-life Stress Inventory. Descriptive statistics, independent t-test, analysis of variance (ANOVA) and Pearson correlation coefficient were utilized to analyze the...

Author(s): Muna Suleyiman and Atinkut Zewdu  

September 2018

Journal of Economics and International Finance
Consumption patterns among individual households in Nasarawa State, Nigeria

The need for economic theory to address the problem of unsustainable consumption patterns in a developing economy, Nigeria cannot be overemphasized. The literature suggests that present consumption patterns which use up economic resources beyond the capacity of the environment to replenish may make development unsustainable. This study analyzed consumption behavior vis-à-vis the factors that weakly or strongly...

Author(s): Joseph M. Ibbih and Peter Siyan  

September 2018

International Journal of Genetics and Molecular Biology
The characterization of Citrus sp. from Parang Island Karimunjawa based on morphological, DNA barcoding and nutritional analysis

The Citrus sp. from Parang Island Karimunjawa is a wild type of Citrus plant that grow on salt area and exhibits a high level of vitamin C.  Due to its ability, morphological, molecular and nutritional characterization needs to be carried out to improve its potential. The study was carried out at the Biotechnology Laboratory and the Integrated Laboratory of Diponegoro University from 2016 to 2017. The...

Author(s): Hermin Pancasakti Kusumaningrum, Anto Budiharjo, Agung Suprihadi, Yuriza Eshananda, Annisa Fadillah and Dina Rahayuning Pangestuti  

September 2018

African Journal of Pure and Applied Chemistry
Spectrophotmetric evaluation of rotenone extraction from leaves and seeds of mature Tephrosia vogelii plant

The percentage yield of rotenone extracted from Tephrosia vogelii leaves and seeds was investigated.  Ten samples of well ground leaves and seeds were each subjected to extraction in soxhlet extraction system using trichloromethane, ethanol and methanol solvents for 24 h at room temperature. The maximum absorption wavelength of rotenone was determined using Ultra violet-visible spectrophotometer.  Different...

Author(s): Kariuki, D. K. and Njiru, S. N.  

September 2018

African Journal of Pure and Applied Chemistry
Preliminary characterization of some natural dyes

A preliminary study on the chemical structure of dyes from Rothmannia hispidia, Pterocarpus osun and Terminalia superba was made using chemical tests, UV-visible and infrared spectroscopies. R. hispidia dye was found to contain an alkyl amino group (-NHR) and carbon-carbon double bond conjugated with a carbonyl (C = O) group, and also showed maximum absorption at 595 nm in the visible region. P. osun dye contains...

Author(s): Mercy Amarachukwu Ezeokonkwo, Sunday Nwankwo Okafor and Evelyn Uloma Godwin-Nwakwasi

September 2018

Journal of Chemical Engineering and Materials Science
Effects of artificial aging heat treatment on mechanical properties and corrosion behaviour of AA6XXX aluminium alloys

In this study, the effects of artificial aging heat treatment on mechanical properties and corrosion behaviour of AA6XXX alloy were investigated. The effects of artificial aging time on microstructure and mechanical properties of alloy were analysed and at the same time corrosion behaviour was determined by corrosion tests. For experimental investigations, the alloy samples prepared in appropriate sizes were heated to...

Author(s): Adem Onat  

September 2018

Journal of Accounting and Taxation
Capital structure and corporate financial distress of manufacturing firms in Nigeria

This paper investigated the effect of capital structure on corporate financial distress of manufacturing firms in Nigeria by employing panel corrected standard error (PCSE) technique. The variables used in the study are corporate financial distress, capital structure, firm size, assets tangibility, revenue growth, profitability and age of firms. The outcome of the research reveals that capital structure affects...

Author(s): Ikpesu Fredrick and Eboiyehi Osazemen C.  

September 2018

Journal of Accounting and Taxation
The effects of corporate governance codes in curbing fraudulent activities in private organisations in Nigeria

The rise of accounting scandals has prompted the need to improve the relevance of financial reporting by setting up good corporate governance structures. The relationship between corporate governance and fraudulent activities has been strongly debated in the developed countries. It is recently that attention has turned to the study of corporate governance and financial reporting in developing countries. This paper...

Author(s): Adigwe Pretty Dennis and Stanley Ogoun  

September 2018

Journal of Parasitology and Vector Biology
Prevalence of Schistosoma mansoni infection and associated factors in irrigation workers in Gamo Gofa and South Omo Zone, 2017: A Community based parasitological survey

Schistosomiasis is one of the most prevalent parasitic diseases and an important public health problem in many developing countries. In this era of global warming and climatic changes, the epidemiology of temperature-dependent infectious diseases could be changing implying the possibility of new transmission area in the world in general and in Ethiopia in particular. This study aims to assess the prevalence of...

Author(s): Meseret Girma, Eskezyiaw Agedew, Genet Gedeamu, Desta Haftu and Tsegaye Yohanes  

Page 9 of 1144, showing 50 records out of 57178 total, starting on record 401, ending on 450