Articles

 

Page 2 of 1250, showing 50 records out of 62492 total, starting on record 51, ending on 100

Journal of Medicinal Plants Research
Pachyrhizus toxicity: Genetic variability of mature and immature seeds and its effects on Sclerotium rolfsii and Ralstonia solanacearum

January, 2023

Pachyrhizus seeds-induced toxicity is very well-known to have developed in humans, fishes, insects, and some micro-organisms. Yet, there is a paucity of studies addressing it in their germplasm, as well as its effects on some phytopathogens. This work aimed to assess the Pachyrhizus genetic variability on toxicity and to determine Pachyrhizus extract toxicity on Sclerotium rolfsii and Ralstonia solanacearum in vitro. In...

Author(s): Thiago MP e Silva, Rândrea GV Guimarães, Anne KB Martins, Danilo F Silva Filho and César A. Ticona-Benavente  

African Journal of Mathematics and Computer Science Research
Notes on the order of convergence, consistency and stability properties of newly derived schemes

January-June, 2023

In this paper, two numerical integration methods for solving Initial Value Problems (IVPs) in Ordinary Differential Equations (ODEs), namely “Third Order One Step Scheme (TOOSS) and Second Order One Step Scheme (SOOSS)” have been considered. The order of convergence, consistency and the stability properties of the schemes have been investigated. From the analyses, it is observed that SOOSS and TOOSS have...

Author(s): Sunday Emmanuel Fadugba

International Journal of Plant Physiology and Biochemistry
Salt resistance strategies of amaranth salt-resistant mutant lines

January-June 2023

Improving plant salt tolerance is thus a veritable challenge for breeders as salt stress is one of the most important factors that negatively affect plant growth and productivity worldwide. In this study, we evaluated the physiological strategies involved in the salt resistance of three salt resistant mutant lines. Three weeks old plants of the three mutant lines and that of the control cultivar Locale were submitted in...

Author(s): Atou Richard, Tonouewa Gauthier, Agapit Wouyou, Kpochemè Adjaho Olatondji Eustache Kévin, Missihoun Antoine Abel, Ahoton Leonard, Agbangla Clément, Lutts Stanley and Gandonou Christophe Bernard

African Journal of Agricultural Research
Agricultural livelihood systems typology for coping with diversity in smallholder farming system research: A demonstrative case in South-western Burkina Faso

January, 2023

Smallholder farms’ populations are characterized by their heterogeneity giving the diversity of farms’ livelihood settings. Integrated farming system modelling therefore requires a preliminary clear identification of the farm types in a location and for a given population. This study aims to formulate empirically agricultural livelihood system (ALS) typology for the purpose of integrated modeling of...

Author(s): Boundia Alexandre Thiombiano and Quang Bao Le  

African Journal of Agricultural Research
Estimating crop water requirements for irrigation scheduling of tomato using Aquacrop 5.0 and Cropwat 8.0 models under scarcity and unreliability of rainfall in Harare

December, 2022

In the face of increased competition for water resources, optimal irrigation scheduling is necessary for sustainable development of irrigated agriculture. However, the most favourable irrigation scheduling has many constraints and conflicting objectives and deals with an environment which has a lot of uncertainty. In this study, a comparative approach was undertaken for irrigation scheduling using Aquacrop 5.0 and the...

Author(s): Godfrey Singano Muroyiwa, Emmanuel Mashonjowa, Teddious Mhizha, Maud Muchuweti and Peter George Raeth  

African Journal of Environmental Science and Technology
Biological removal of iron from groundwater in a pilot column on a filter support material with coated jujube seeds

December 2022

A co-flow pilot filter with a packing support material (coated jujube seeds) was constructed and tested for the biological removal of iron from Senegalese groundwater. Indeed, it is a PVC tube with an internal diameter of 40 mm and a height of 90 cm. The performance of the filter was tested at a constant hydraulic head of 261.67 m3/m2 per day while the iron feed concentrations varied between 0.5-1, 0.5-1.5 and 0.5-2...

Author(s): FAYE Mamadou, SAMBE Falilou Mbacké, TOURE Alpha Ousmane, DIOP El Hadji Moussa, NDOYE Mouhamed, and DIOP Mar Codou Guèye,

International Journal of Library and Information Science
Availability and accessibility of electronic information resources in federal college of education libraries in Northern Nigeria

July-December 2022

The study investigates the availability and accessibility of electronic information resources in federal college of education libraries in Northern Nigeria. The research adopted mixed research methods with a concurrent triangulation research design. The population of the study is 34, 846 library users and 12 college librarians. The sampled respondents were 378 and 9 college librarians. The research used interview and...

Author(s): Temboge Andrew and Diso Lukman Ibraheem

Journal of Dryland Agriculture
Concentration, isomorphous substitution and phosphate sorption of extractable iron and aluminum oxides in Hadejia-Jama’are wetland soils, Nigeria

December 2022

Most iron nodules have micropores as a result of isomorphous substitution of aluminum (Al) for Iron (Fe). Hadejia-Jama’are wetlands is currently facing serious threat of rapid growing weeds associated with poor phosphate management. The objectives were to study the concentrations of dithionite and oxalate Fe and Al oxides, degree of aluminum substitution and phosphate sorption index of Hadejia-Jama’are...

Author(s): Shehu Yusuf, Abdu Nafiu and Chinke Nkechi Mary  

African Journal of Food Science
Analysis of different extraction solvents: Influence on some properties of aerial yam (Dioscorea bulbifera) starch

December 2022

Starch was extracted from aerial yam (Dioscorea bulbifera) using water, sodium hydroxide, ammonium oxalate, and oxalic acid as extraction solvents, oven-dried at 45°C for 24 h, and milled to flour. The starch obtained was evaluated for yield, chemical and functional properties using standard procedures. The sensory attributes of the starch cooked pastes were also determined. Aerial yam extracted with oxalate gave...

Author(s): Ojo Mofoluwaso Olufunmilola, Oni Kunle, Femi Fortune Abidemi, Idowu-Adebayo F, Balogun Adenike , Ogunbande Babatunde Joseph  and Ude Margaret

Journal of Chemical Engineering and Materials Science
Computational fluid dynamics (CFD) simulation of a gas-solid fluidized bed: Residence time validation study

July-December, 2022

In this work, the business Computational Fluid Dynamics (CFD) is used for the numerical simulations of an air-solid fluidized bed container in the solid phase involving a multi-fluid Eulerian multiphase model and the Kinetic Theory of Granular Flow (KTGF). The height of the fluidized bed setup is 1.5 m while its diameter is 0.2 m. With it, a series of experimentations were obtained using Helium tracer to determine the...

Author(s): Baru Debtera  

International Journal of Educational Administration and Policy Studies
Effect of household income and expenditure on tertiary school enrolment in Nigeria

July-December 2022

The bounds testing (augmented autoregressive distributed lag, ARDL) technique to cointegration was used in this study to investigate the effect of household income and expenditure on tertiary school enrolment in Nigeria from 1970 to 2020. The model was employed to estimate the relationship between these three variables while also accounting for interactions with total education expenditure. When the dependent variable...

Author(s): Ihugba O. A., Obiukwu S., Akobundu P. L., Osunkwo T., Oyalede O. and Okonkwo K.

Journal of Toxicology and Environmental Health Sciences
Benzene, toluene, ethylene and xylene (BTEX) is implicated in gasoline-induced oxidative stress in male albino Wistar rats

July-December 2022

This study determined plasma and liver tissue benzene, toluene, ethylene and xylene (BTEX), malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD) and glutathione peroxidase (GPx) status in rats orally exposed to gasoline. Sixteen adult male Wistar rats (210.0 ± 20.0 g), distributed into control and test groups, of eight rats each were used. Rats in test group were administered 2.0 mLkg-1...

Author(s): Friday E. Uboh, Saviour U. Ufot, Uduak O. Luke and Eve Mboso  

African Journal of Food Science
Phytate degradation in composite wheat/cassava/sorghum bread: Effects of preincubation of Pichia kudriavzevii TY13 and presence of yeast extract

December 2022

Diet based on whole cereal flours is associated with a high prevalence of iron deficiency anemia and zinc deficiency in low/middle-income countries. Such flours contain high content of phytate that chelates minerals such as iron and zinc, making them unavailable for absorption by humans. To improve the mineral absorption, a phytate:iron molar ratio <1 and a phytate:zinc molar ratio <5 is needed to be achieved....

Author(s): Vilanculos Serafina Lídia, Svanberg Ulf and Andlid Thomas

Journal of Fine and Studio Art
Application of filigree technique used for jewellery in designing and producing a life-sized photorealist bust

July-December 2022

Curling, twisting and plaiting of fine pliable threads of precious metals and arranging them in a precise pattern after which it is fixed by soldering are the technique of filigree, which is predominately used in jewellery making. Things that are usually produced with this technique appear delicate and complex. In view of this, metal artists are restricted by objects that can be created using the filigree technique. It...

Author(s): Baidoo Mohammed Kwaku, Adala Cyril Etornam and Adu-Boachie Charles 

Journal of Economics and International Finance
Impact of bilateral and multilateral aid on domestic savings of Sub-Saharan African countries: Mediating role of institutional quality

October-December 2022

This study examined the impact of bilateral and multilateral aid on domestic savings of SSA countries, taking into account the role of institutional quality. A balanced panel data set consisting of 28 SSA countries from 1996 – 2015 was used. Random effects techniques were also used. Bilateral aid was found to have negative significant impact on domestic savings of SSA countries, reflecting a crowding-out effect;...

Author(s): Kosea Wambaka

African Journal of Agricultural Research
Assessment of health hazards and risk perceptions of market garden producers towards the effects of pesticides in Western Region Cameroon

December, 2022

The increased health effect of pesticides on the agrarian population in Africa, particularly in Cameroon is a challenging concern. Therefore, this study aims to assess the health risks and risk perceptions of market garden producers towards the effects of pesticides in Cameroon. Using a multi-stage sampling technique, a sample of 560 producers in the Noun Division, Western Region of Cameroon was obtained and an ordered...

Author(s): Kaldjob Mbeh Christian Bernard, Tata Ngome Ijang Precillia, Douya Emmanuel, Nso Ngang Andre, Bamou Tankoua Lydie and Simo Brice Herman

African Journal of Food Science
Production of maize-soybean complementary foods fortified with crayfish, bonga fish and carrot flours rich in essential nutrients

December 2022

Blends of maize-soyabean complementary foods were fortified with foods rich in calcium, iron, zinc and vitamin A. Crayfish, bonga fish, and carrot that were processed into flours separately and blended in ratios (2:1:1 w/w) to produce food fortificant. Maize flour, soyabean flour and fortificant were mixed in the ratio of 70:30:0, 60:30:10 and 50:30:20 (% w/w dry basis), respectively to obtain three blends of...

Author(s): Okpalanma Emeka Felix, Ukpong Ekpeno Sunday, Chude Onuora Charles and Abah Chizoba Rejoice

International Journal of English and Literature
Behaviourism theory in teaching and learning English as a second language in primary schools

October-December 2022

The English Language is widely used in nearly all countries around the world, and Tanzania is not an exception. Learning theories such as humanism, cognitivism, constructivism, and behaviourism are applied as a way to achieve the expected aims of English learning and teaching in Tanzania. This study aims to understand the challenges of using behaviourism theory in English language learning and teaching. This will be...

Author(s): Kadau Ibrahimu 

International Journal of Physical Sciences
Solution of Einstein's equations, for a fluid and homogeneous star

October-December, 2022

Using the mathematical aspects of the Schwarzschild metric, we present different variables transformation which proves that the central singularity hypothesis does not exist. The geometric interpretation of the black hole from the Schwarzschild metric is not mathematically convincing. The different mathematical approaches taken by many authors were viewed, such as the Painleve metric and its complex variant, and the...

Author(s): Jean-Max CORANSON-BEAUDU and  Xavier LAMPLA  

International Journal of Physical Sciences
Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density

October-December, 2022

Studies on concentrated light influence do not take into account the effect of the heating and this proves to be harmful on photovoltaic parameters. The main purpose of this work is to study the effects of light concentration and the heating caused by this concentration on intrinsic properties and carrier density profile. A thermal model of the PV cell is proposed. By applying the power balance at the steady-state, the...

Author(s): Mahamadi SAVADOGO, Pegdwindé Ousséni Fabrice OUEDRAOGO, Adama OUEDRAOGO, Lamine ZIDA, Martial ZOUNGRANA and Issa ZERBO

Journal of AIDS and HIV Research
Development and integration of IPV-4, a patient-reported screening instrument of intimate partner violence for primary and HIV care

July-December 2022

Intimate partner violence (IPV) is a significant and under-reported health problem. Legacy measures of IPV lack brevity and/or are relevant only to specific populations, which limit their usefulness for routine clinical care. We developed a brief patient-reported screening instrument of past-year intimate partner violence (IPV). We developed an item pool from validated IPV screening instruments,  dimensionalized...

Author(s): Rob Fredericksen, Emma Fitzsimmons, Sonia Avendano-Soto, Sharon Brown, Katerina Christopoulos, Sarah Dougherty, Joseph Eron, Mari Kitahata, Stephanie Loo, Kenneth Mayer, Michael Mugavero, Sonia Napravnik, Conall O’Cleirigh, Jennifer Potter, Stephanie Ruderman, Laurie Smith, Paul Crane and Heidi Crane  

Journal of Dryland Agriculture
Impact of Covid-19 on mobile pastorals livelihood: A review

December 2022

COVID-19 pandemic affects almost all pastoralists around the world are highly marginalized and ignored attentions. The extent of pastoral vulnerability towards COVID-19 pandemic was very high. The objective of the review is to show the impacts of COVID-19 on mobile pastorals livelihood. Pastorals have always lived with vulnerable situations like droughts, climate variability, climate change, market instability, water...

Author(s): Gelgelo Wako Duba and Tsedu Tesfaye Hailu  

African Journal of Biotechnology
Molecular and physiological characterization of bread wheat (Triticum aestivum L.) breeding lines for fungal diseases tolerance

December 2022

Fungal diseases are one of the major causes of losses on wheat yield in the world. Recent studies on plant defense mechanisms have highlighted the role of amino acids and total polyphenols in disease tolerance. Thus, with the objective of identifying on the basis of morphological and physiological variables the high-performance wheat accessions in high and low altitude, we characterized sixteen wheat accessions via...

Author(s): Ngonkeu Eddy M. L., Damdjo Ariane, Mongoue Aminatou Fanche, Tékeu Honoré, Foko Arlette, Tsimi Patrick, Mam Charly E., Manga Jude D., Effa Pierre O., Djocgoué Pierre F. and Bote Willem C.

International Journal of Biodiversity and Conservation
Phenotypic characterization of sorghum accessions on farmers’ fields in northern and eastern Uganda

October-December 2022

Sorghum is one of the most important cereal crops grown in arid/semi-arid regions of the world. Understanding and utilising the genetic variation in sorghum accessions is essential for improving the crop to adapt to abiotic and biotic constraints. Several authors have reported the loss of sorghum diversity, but there is limited available information on on-farm sorghum diversity in the major sorghum growing areas in...

Author(s): Apunyo P. C., Businge M., Otim M. H., Isubikalu P. and Odong T. L.

African Journal of Agricultural Research
Estimation of genetic variability, interrelationships and path analysis for yield and yield related traits in NERICAs upland rice (Oryza sativa L.) in White Nile State, Sudan

December, 2022

The yield of rice landraces in the Sudan has been low due to genetic ceiling in the existing varieties. It is necessary to carry out breeding programs that deal with the production of high yielding, adaptable new varieties. Therefore, this study aimed to estimate genetic variability, heritability, genotypic performance and interrelationships among the traits. 18 upland rice genotypes and two checks evaluated at White...

Author(s): Sara M. Abdalla, Khalid A. Osman, Sarrah M. Hamid, Abu Elhassan S. Ibrahim and Abbas M. Suliman

African Journal of Medical and Health Sciences
Seroprevalence of toxoplasmosis in reproductive-aged women in Jeddah Province, Saudi Arabia: A retrospective study

December 2022

Toxoplasmosis; an opportunistic protozoan parasitic disease caused by Toxoplasma gondii, still imposes a major health concern and a significant economic burden worldwide particularly in developing countries. Nevertheless, the epidemiological status of toxoplasmosis among Saudi female population remains largely unknown. Therefore, the present hospital-based retrospective study aimed to determine the seroprevalence of T....

Author(s): Raafat Abdel Moneim Hassanein, Adel Galal El-Shemi, Ameer Ahmed Alahmadi, Waslallah Saad Almatery, Mohammed Othman Alkurbi and Radi Taha Alsafi  

Journal of Medicinal Plants Research
Determination of total phenolic and flavonoid content, antioxidant and cytotoxic activity of the methanol extract of Acacia nilotica pods

December, 2022

Acacia nilotica is a medicinal plant used in Niger republic for the treatment of gastrointestinal diseases. The aim of this study was to investigate total phenolic and flavonoid content, antioxidant and cytotoxic activity of the A. nilotica pods collected from Niger republic. The phytochemical contents were examined by colorimetric methods. Antioxidant activity of the methanol extract was screened using DPPH, ABTS and...

Author(s): Maman Manzo Lawaly, Khalid Ikhiri and Liu Yu  

African Journal of Food Science
Increased antibacterial activity of Angelica koreana and Arnebia euchroma extracts fermented by Lactobacillus acidifarinae against methicillin-resistant Staphylococcus aureus

December 2022

The increasing epidemic of methicillin-resistant Staphylococcus aureus (MRSA), one of the most important hospital and community pathogens, has led to a demand for new agents to treat the infection. Natural products may be used to reduce this problem with low side effects. The objective of this study was to determine the antibacterial effect of fermented extracts of Angelica koreana and Arnebia euchroma by Lactobacillus...

Author(s): Kim Jae-Goo, Cha Yunji, Yang Seung-Bo, Kim Jiyoung and Kim Ki-Young

Journal of Pharmacognosy and Phytotherapy
Therapeutic uses of stingless bee honey by traditional medicine practitioners in Baringo County, Kenya

October-December 2022

African traditional medicine knowledge, skills and practices have often been passed verbally from the older generation to the younger generation. However, the current traditional medicine practitioners (TMPs) are rapidly aging, while the younger generation is not taking up the practice. Therefore, this study aimed at documenting the therapeutic uses of stingless bee honey among TMPs in Baringo County. Briefly, 91 TMPs...

Author(s): Sabella J. Kiprono, Gladys Mengich, Bartholomew N. Ondigo, Charles Mutai and Sammy Kimoloi  

Journal of Medicinal Plants Research
Antiedematogenic activity of Petiveria alliacea L. in bothropic poisoning

December, 2022

The biodiversity of the Brazilian biomes inspires interest in research about the biological activities of the molecules present in the flora. In this line, Petiveria alliacea a common plant species in the savanna of Tocantins, reported in the treatment for snakebites, was studied to analyze the phytochemical profile and evaluate the activity on the edema caused by Bothrops moojeni snake venom. A qualitative...

Author(s): Marcio Trevisan, Patricia Siqueira de Melo Rodrigues, Antônio Ítalo dos Santos Nunes, Milena Dos Santos Falcão, Hemilly Cirqueira Martins, Elisandra Scapin, Marcio Galdino Dos Santos and Carla Simone Seibert  

Journal of Horticulture and Forestry
Sustainable biomass energy production and utilization in sub-Saharan Africa: A case study of Kenya

October-December 2022

This paper reviews biomass energy production and utilization trends, opportunities, challenges and strategies for sustainability in biomass energy sector in sub-Saharan Africa (SSA).  This is because despite various benefits provided by the resource, it receives little attention in terms of policy formulation and planning to enhance adequate investments and allocation of funds. Therefore, with increasing demand...

Author(s): Timothy Namaswa, Joseph Githiomi, Nellie Oduor and Emily Kitheka  

African Journal of Agricultural Research
Effects of sodium chloride on seed germination and seedling establishment of sorghum genotypes

December, 2022

Salinity and climate change are major threats that affect crop productivity in arid and semi-arid fields globally. Sorghum is a climate smart crop but wide range of sorghum genotypes grown is sensitive to salt. Sorghum was screened for salt tolerance using sodium chloride (NaCl) at different concentrations. There were 250 evaluated sorghum genotypes using factorial arrangement in a Completely Randomized Design (CRD)...

Author(s): Nelly Chebet, Erick K. Cheruiyot and Samuel Mwonga  

African Journal of Political Science and International Relations
Rational call from developing countries: China phobia brings unbearable weight to the world

October-December 2022

Author(s): Wang Yi Wei

Journal of Accounting and Taxation
Trend analysis of the immediate post-adoption effects of IFRS 9: An emerging market evidence

October-December

IFRS 9 is a global standard whose impact is expected to vary depending on banks’ credit risk approach, size, and country of incorporation. Therefore, it is imperative to study the implementation effects of IFRS 9 in all regions in which IFRS 9 has been implemented. This paper examines the first-time post-adoption effects of IFRS 9 in the Ghanaian banking sector and addresses the gap in empirical academic...

Author(s): Taylor Daniel 

Journal of African Studies and Development
Greater horn of Africa's dilemma in achieving sustainable development goals

October-December 2022

This study assessed the performance of the Greater Horn of Africa (GHA) regional states regarding their respective implementation of the 2030 Agenda for Sustainable Development Goals (SDGs). It examines the successes, challenges, and alignments to national policies and development plan to meet the 2030 agenda and suggested recommendations for accelerating the implementation of the SDGs. This study is a pursuit against...

Author(s): Gaas Abdirahman Osman 

International Journal of Vocational and Technical Education
Assessment methodologies and determinants of employability and skills level among Technical and Vocational Education Training (TVET) graduates in Central Uganda

July-December 2022

Globally, unemployment persists because skill levels and learner capabilities are not in tandem with job market requirements. Using logistic analysis, the present study probed determinants of employability of 150 graduates of Technical and Vocational Education Training (TVET) in Central Uganda and further predicted factors influencing their skills level by applying Tobit regression. On a 1 to 5 scale, skills averaged at...

Author(s): Steven Yiga

African Journal of Marketing Management
Social media classifications for impactful marketing

July-December 2022

Social media usage and applications are on the upsurge. Marketers must synchronize advertising content, consumer profile and social media applications for impactful advertising. Nevertheless, social media applications proportionally grew in numbers and types giving both marketers and consumers endless options and creating confusion in choice. This study used factor analysis to classify social media into three...

Author(s): Maseke Bernardus F. 

African Journal of Agricultural Research
Heavy metals levels and adult health risk assessment in horticultural systems in Mbare Musika and Mutoko, Zimbabwe

December, 2022

Levels of cadmium, chromium, cobalt, nickel and lead were determined in cabbages, tsunga (mustard), green beans and tomatoes from Mbare Musika vegetable market in Harare and one of its major supplier, Mutoko. Cabbages and tsunga exceeded the stipulated safe limit for lead levels whereas the tomatoes and sugar beans went above the 0.02 ppm threshold for cadmium. Hazard Quotients (HQ) of the vegetables showed adult health...

Author(s): Samuel Kodani, Elias Chipunza and Stanislaus Zvarimwa  

African Journal of Microbiology Research
Molecular analysis of zoonotic pathogens observed in Thryonomys swinderianus (Marsh cane rat) in the city of Daloa in Center Western Côte d’Ivoire

December

Bush meat is a source of food and income for many people in Center Western Côte d’Ivoire. However, it can have adverse effects on the health of the population when food safety practices are not respected. The assessment of the health risk associated with the consumption of bush meat was carried out on 17 faeces samples of Thryonomys swinderianus (marsh cane rat) collected in the city of Daloa in Center...

Author(s): Yéboué Félix Kouadio,, Sylla Idrissa, Abé Innocent Allepo, N’Djetchi Martial Kassi, Konan Thomas Konan, Béné Jean-Claude Koffi and Koffi Mathurin

African Journal of Agricultural Research
Assessing the host status of banana and other plant species to the enset root mealybug Paraputo ensete (Williams & Matile-Ferrero) (Hem.: Pseudococcidae) in Ethiopia

December, 2022

Ninety backyard gardens in the south-eastern Ethiopian highlands with enset (Ensete ventricosum (Welw.) Cheesman), banana and various annual crops were assessed for the presence of enset root mealybugs (Paraputo ensete (Williams & Matile-Ferrero)). This study presents the first observation of enset root mealybugs on banana. This pest has until now been exclusively recorded on enset in Ethiopia. In the Dilla Zuria...

Author(s): Fikadu Erenso, Guy Blomme, Mitiku Muanenda, Elizabeth Kearsley, Georg Goergen and Temesgen Addis

African Journal of Environmental Science and Technology
Comparative study of improved treatment of oil produced-water using pure and chemically-impregnated activated carbon of banana peels and Luffa cylindrica

December 2022

Produced water (PW) during oil and gas production operations contains various hazardous substances including heavy metals (HM) with adverse impact on the environment. Disposal of PW interferes with environmental sustainability, making PW treatment obligatory prior to discharge into the environment. Among previously available treatments of PW, environmentally sustainable methods using low-pore space bio-adsorbents...

Author(s): Akinsete Oluwatoyin Olakunle, Agbabi Praise Otitochukwu, Akinsete Shade John, and Ipeaiyeda Ayodele Rotimi

African Journal of Agricultural Research
Growth performance and economic analysis of Nile tilapia (Oreochromis niloticus) fed on black soldier fly larvae (Hermetia illucens)

December, 2022

The depletion of fish stocks in Lake Victoria is putting severe strain on fish supplies for human consumption and aquaculture feed formulation. Due to the fish stocks high demand and limited supply, fishmeal prices are rising, increasing the cost of feed for aquaculture. As a result, up to 70% of variable aquaculture expenditures are related to feed. Alternative feed sources, such as insect meals, have been heavily...

Author(s): Florien Amondi Odhiambo, Elijah Museve, Millicent Ndong’a and Julius Manyala  

African Journal of Agricultural Research
Development and testing of a vertical-spikes shelling machine for bambara groundnuts

December, 2022

This paper aim to develop a low-cost Bambara groundnuts sheller that uses vertical spikes as the shelling mechanism. A vertical spike shelling machine was designed, constructed and evaluated. The Bambara groundnut shelling machine consisted of a hopper, shelling system, frame, motor and power transmission system. The Bambara groundnut sheller used a low-cost shelling mechanism of spikes and shaft system, as it has...

Author(s): Nkambule S., Workneh T., Kassim A., Sibanda S. and Lagerwall G.  

Journal of Stored Products and Postharvest Research
Fludioxonil effectively controls Sclerotinia sclerotiorum incited decay in stored carrots in Israel

July-December 2022

Carrot is an important crop in Israel, subjected to postharvest decay, incited in cold storage by the fungus Sclerotinia sclerotiorum, which may cause up to 7% loss. The fungicide iprodione, which had been used until recently to limit decay was phased-out in 2020. Hence, in the present study, the fungicide fludioxonil was examined as a replacement. In two cold storage trials with artificial inoculations, fludioxonil...

Author(s): Nitzan Nadav and Pincovici Shahar

African Journal of Microbiology Research
Characterization of tannase-producing bacteria in cowpea (Vigna unguiculata L.Walp)

December

Bacteria populations isolated from Cowpea were screened on tannic acid agar medium and determined by zones of hydrolysis after 48 h of incubation at 35°C with three bacteria isolates with isolate codes; DVN 5, DVN 8 and DVN 17a, identified as Enterococcus faecalis, Enterococcus sp. and Staphylococcus sp. respectively observed as having the highest zones of hydrolysis and subjected to further screening. Tannase...

Author(s): Nwachukwu David, A. A. Ajayi, T. A. Kolawole and U. N. Nwokoma,

Journal of Economics and International Finance
Assessment of monetary policy transmission mechanism in Tanzania

October-December 2022

This study aims to assess the effectiveness of alternative monetary policy transmission channels in Tanzania. Theoretically, monetary policy transmission is expected to differ between developed and developing countries due to varied structural and institutional features. The empirical work undertaken by this study suggests that the sensitivity of output and prices to changes in monetary policy are generally weak and...

Author(s): Kimolo Deogratius, Bashagi Asimwe and Sanga Mollel 

Journal of Media and Communication Studies
Interventions and messaging in behaviour change communication response to COVID-19: A qualitative analysis of covid campaign in Kenya coastal counties

October-December 2022

Effectiveness and compliance to intervention measures that mitigate the spread of COVID-19 has heavily relied on awareness and willingness of the public to adhere to directives. In this study, Behaviour Change Communication (BCC) interventions in response to COVID-19 are analyzed with the aim of identifying opportunities and gaps that can inform ongoing and future efforts. The study focuses on a BCC campaign rolled out...

Author(s): Waithaka Ann and Siringi Samuel

African Journal of Business Management
The impact of microfinance on the poor in Kenya: A systematic review of evidence from Kenya

December

This study reviews the qualitative and quantitative research on the impact of microfinance (especially micro-credit) on the poor in Kenya to enable practitioners, donors and policy-makers understand the nature of the evidence available. Despite a large body of impact studies on the effectiveness of microfinance on the poor in Kenya, no systematic review has been conducted that brings together all these studies and...

Author(s): Huzaifa Shakir

Journal of Ecology and The Natural Environment
Effect of heavy metals and physicochemical parameters on diversity of plants at a gold mine tailings dam in Ghana

October-December 2022

This study focuses on the impact of physicochemical parameters and heavy metals concentrations in soil on abundance, richness and diversity of plants at Marlu tailings dam located near Bogoso, Ghana. The concentrations of heavy metals (mg/kg) in soil at the study area are as follows: Fe (10,528.9 - 7,873.0), Cu (224.9 - 177.4), Zn (51.6 - 42.7), Cd (3.0 - 2.6), As (2.4 - 1.7) and Mn (78.3 - 57.1). Soil nutrient levels...

Author(s): Doku Emmanuel T. and Belford Ebenezer J. D.

International Journal of Biotechnology and Molecular Biology Research
Gene regulating effects of Cymbopogon citratus on glucose metabolism of normal albino rats

July-December 2022

Cymbopogon citratus has been reported to have hypoglycaemic and antidiabetic activities. This study evaluates the insulinotropic properties of C. citratus via gene expression. C. citratus was administered to normal rats as pulverized leaves (2, 10 and 30%) mixed with animal feed for one week; as aqueous and ethanol extracts at a dosage of 30 and 100 mg/kg body weight for 30 days; and as isolated saponins, flavonoids and...

Author(s): Adegbegi Ademuyiwa Joshua, Onoagbe Iyere Osalase and Omonkhua Akhere Akuekegbe

Page 2 of 1250, showing 50 records out of 62492 total, starting on record 51, ending on 100