Papers by Muhammad inuwa adamu
Allelopathic effect of eucalyptus root extract on germination and growth of some varieties of cow... more Allelopathic effect of eucalyptus root extract on germination and growth of some varieties of cowpea (vigna unguiculata (L.) Walp) was investigated. The experiment was conducted at the Botanical garden Federal University Dutse, Jigawa state (latitude 11.00 N to 13.00 N and longitude 8.00 E to 10.15 E). Two cowpea varieties; Dankaka, a local cowpea variety and IT08-150-12 an improved variety were collected from IITA, Kano station. The experimental design used was completely randomized block design. There were twelve replications per treatment. The treatments used consist of four different concentrations of eucalyptus root extract; 25%, 50%, 75%, 100% and then the control. About 200mls of the different extracts concentrations were applied to the soil before sowing the seeds. The duration of the study was between June 6th- August 9th 2018. Data was collected on Germination and seedling growth namely; Plant height, Number of leaves, Plant fresh weight and Plant dry weight. Data was analyzed using analysis of variance at 5% significance level. The result showed that the germination rate and growth decreased with increasing concentration of the treatments. The overall germination and growth rate of seedlings were reduced with 100% eucalyptus root extract concentration treatment followed by 75% then 50%, the least was 25%. The cowpea variety dankaka was most susceptible to the allelophatic effect of eucalyptus extract with respect to germination, and IT08-150-12 was most susceptible with respect to seedling growth. Key word: Allelophatic, cowpea, eucalyptus, dankaka, IT08k-150-12
BioResources
Microwave pyrolysis of finely ground jatropha seed biochar was used as bio-filler to develop bioc... more Microwave pyrolysis of finely ground jatropha seed biochar was used as bio-filler to develop biocomposites. Effects influencing the mechanical properties of the biocomposites were investigated based on varied material ratio. Ratios by percentage of weight were determined by D-optimal (custom) mixture design using the Stat Ease “Design Expert”. The mechanical properties, such as tensile strength, modulus of elasticity, and microhardness, were the dependent variables (response). Bio-filler content was optimised to attain the overall best mechanical properties for the biocomposites. The optimized biocomposite that showcased good tensile strength, modulus of elasticity, and microhardness biocomposite ratio’s predicted mechanical properties mean values were tensile strength (9.53 MPa), modulus of elasticity (0.730 GPa), and microhardness (20.4 HV) for polylactic acid and biofiller mixture; and tensile strength (7.92 MPa), modulus of elasticity (0.668 GPa), and microhardness (18.7 HV) for...
Bamboo Polymer Nanocomposites
3rd African Human-Computer Interaction Conference
Ontological and epistemological differences between Western and non-Western traditions makes inve... more Ontological and epistemological differences between Western and non-Western traditions makes investigating and understanding other cultures using stereotypical (Western) approaches and methods rather difficult. At the intersection of a crisis of identity, epistemic positionality and cultural adequacy, this paper reflects on the ethical and methodological implications of the practices of HCI4D fieldwork that seek to decode and deconstruct the mundane practices of designing and deploying educational technologies in Nigeria. The reflection identifies a range of issues concerning the limiting relevance of conventional methods of undertaking field studies in Africa, while also showing the appropriateness of indigenous approaches. This has significant importance for the practices of those wishing to work in/with African communities in design projects. CCS CONCEPTS • Human-centred computing → Human computer interaction (HCI); HCI theory, concepts and models.
Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems
While studies in HCI4D have been advanced by the shift of perspective from developmental studies ... more While studies in HCI4D have been advanced by the shift of perspective from developmental studies to a range of other discourses, current analytical concepts for understanding the sociality of society in Africa have arguably led to some misinterpretations of the place of technology. This provocation suggests that an 'African Standpoint' based on a combination of various standpoint positionalities and the Wittgensteinian approach of Winch can offer conceptual and analytical sensitivities for articulating social relations, transnational engagements and the conceptualisation of technological innovation. This provides an approach for seeing and accounting for things as they are-right here, right there and right now-and not some idealised conception of an African reality.
Construction and Building Materials
Abstract Bamboo is a natural resource that has prospect to substitute wood in many engineering ap... more Abstract Bamboo is a natural resource that has prospect to substitute wood in many engineering applications. In this work, mechanical properties of bamboo nanocomposite based on polyvinyl alcohol (PVA)/acrylonitrile/nanoclay was evaluated using response surface methodology (RSM). The developed nanocomposites were characterized by X-ray diffraction (XRD), Fourier transform infra-red (FTIR), Scanning electron microscope (SEM), Differential scanning colometry (DSC), and Thermo gravimetry analysis (TGA) to study their compositional, morphological and thermal properties. Models were developed to predict modulus of elasticity and modulus of rupture of the nanocomposites. The developed models fitted the experimental values with R2 close to 1 and residuals normal probability plot fitted to straight line. Optimized values of MOE and MOR were 12.82 GPa and 105.52 MPa respectively at 10 wt% clay loading, 15 wt% PVA/acrylonitrile loading and modification time of 5 min. The melting and decomposition temperature of the nanocomposites have shown significant improvement compared to the raw bamboo.
Journal of Vinyl and Additive Technology
This study demonstrates the effects of impregnation of polyvinyl alcohol (PVA), styrene, and nano... more This study demonstrates the effects of impregnation of polyvinyl alcohol (PVA), styrene, and nanoclay on the compositional, mechanical, morphological, and thermal properties of bamboo and its nanocomposites (NCs). Design Expert software was used to optimize the materials and modulus of elasticity as well as the modulus of rupture of the composites. Models were obtained with R2 of 0.9999 and 0.998 for the modulus of elasticity (MOE) and the modulus of rupture (MOR), respectively. The MOE and MOR were found to increase significantly after the formation of NC that indicated improvement of mechanical properties of the bamboo NCs. The polymerization of PVA‐co ‐styrene and dispersion of nanoclay were confirmed by the compositional analysis. The X‐ray diffraction analysis showed that the degree of crystallinity was slightly improved upon impregnation with PVA‐co ‐styrene, while reduction in the hydroxyl groups was observed using the Fourier transform infrared. The scanning electron microscopy observation showed tightly filled cell cavities of the bamboo matrix. The thermal stability of the formed NCs were found to be slightly less stable than the raw bamboo (RB) with the differential scanning calorimetry showing low glass transition temperature and the thermogravimetric analysis showed lower decomposition temperatures for the NCs compared to RB as a result of plastic property of the styrene.
American Finance & Banking Review
The main objective of this study is to evaluate the training effectiveness on potential entrepren... more The main objective of this study is to evaluate the training effectiveness on potential entrepreneurs through opportunity of participation given on a task in an organisation. The methodology used in this study is a survey research design through a quantitative approach. Questionnaires are used in collecting data in a cross-sectional survey. The data was analysed using the special package for social sciences (SPPS). Pearson’s correlation co-efficient and regression analysis were conducted. Sobel test was also conducted to confirm the mediating effect of opportunity of participation. The findings revealed that there is a positive relationship between training effectiveness (Kirkpatrick Four Levels) and potential entrepreneur’s performance. The regression analysis indicates opportunity of participation has been a dominant factor in the relationship between training effectiveness and potential entrepreneur’s performance. The integration of a mediator in the frame contributes to Kirkpatr...
Themes in Applied Sciences Research
The purpose of this research is to analyse the effect of Urban Expansion on Land Use/Cover Change... more The purpose of this research is to analyse the effect of Urban Expansion on Land Use/Cover Change in Dutse, Jigawa State, Nigeria. Landsat TM and ETM+ satellite imageries of 1986, 2000 and 2014 respectively, were used. The imageries were processed using ERDAS IMAGINE 9.2 software. A supervised classification approach using maximum likelihood classifier and Transition Change Analysis were carried out using IDRISSI 17.0 Selva Edition version. Results from the analysis revealed that increase in built-up area resulted to changes in other land use/cover categories between 1986 and 2014. Built up area was 20.4% in 1986 and increased to 28.4% in 2000. Further increase was witnessed in built up area to about 38.2% in 2014. The results further revealed that about 7.2% bare surfaces changed into built-up from 1986-2014. About 14.8% of cultivated land changed into built-up from 1986-2014. Vegetation witnessed a remarkable changes into built-up of about 4.5% from 1986-2014. There is need for Jigawa State Government to equip the planning authorities and other ministries involved in decision making with adequate spatial data to ensure broad based decisions. Land use suitability analysis of the study area is also recommended.
International Journal of Current Microbiology and Applied Sciences
International Journal of Management and Enterprise Development
The aim of this research is to examine the influence of organisational culture and entrepreneuria... more The aim of this research is to examine the influence of organisational culture and entrepreneurial motivation on potential entrepreneurs in corporate organisations. Quantitative technique was employed through a cross-sectional survey where primary data has been collected for the study. Correlation coefficients were used, and the study findings suggested that organisational culture and entrepreneurial motivation significantly influences corporate effectiveness. Furthermore, this study theoretically incorporates the VEMT and SCTOP especially in developing the conceptual framework. The merging of these theories explicates the novelty of this study also, exploring the under-researched self-employment determinants in the context of Nigeria added value to the entrepreneurship literature.
Heliyon, 2018
Hospital-acquired infections (HAI) are a global problem and a major public health concern in hosp... more Hospital-acquired infections (HAI) are a global problem and a major public health concern in hospitals throughout the world. Quantification of HAI is needed in developing countries; hence we describe the results of a 2-year surveillance data in a tertiary hospital in Nigeria. This study is a 2-year review using secondary data collected at a tertiary referral center in northwestern Nigeria. The data was collected using surveillance forms modeled based on the Centre for Disease Control (CDC) protocol. Descriptive statistics were used to present results as frequencies and percentages. 518 patients developed HAI out of 8216 patients giving an overall prevalence of 6.3%. The mean age of the patients was 35.98 years (±15.92). Males constituted 281 (54.2%). UTI 223 (43.1%) was the most prevalent HAI. Overall, 207 (40.0%) was the most frequent isolates followed by 80 (15.4%). There was a high prevalence of cloxacillin resistant (67.9%) and gram-negative rods resistant to third-generation ce...
Since the inception of companies‘ activity in Malaysia the value relevance of disclosing accounti... more Since the inception of companies‘ activity in Malaysia the value relevance of disclosing accounting information in relation to corporate social responsibility has been an important topic in accounting research. The purpose of this study is to explore different sort of corporate social responsibility activities in Malaysia and to analysis whether the CSR activities contribute to the enhancement of company performance. It will try and reports an explanatory and quantitative study on the characteristic of CSR activities in company‘s financial statement, the study will covers the assessment of top one hundred companies in Malaysia whose names and shares are quoted in the Malaysia stock exchange (Bursa Malaysia).. The data will be collected through the content analysis of publish company‘s annual reports. The data will be interpret and analyst using graphical/regression analysis, to ascertain if inadequate compliance with corporate social responsibility disclosure whether or not will yield to a poor quality of management as well as the nature and quality impact on society in various area. We will also make conclusion on whether the extent of innovative and compliance with CSR framework really improve the performance of the companies. Finally, this research work will provides the basis for an effective corporate social responsibility, and will also serves as reservoirs of knowledge to student agencies government etc. for the development of the country.
Journal of Ethnopharmacology, 2003
Journal of African Cultural Studies, 2010
... Hindi film songs. 8. The Hausa video film soundtrack Hausa video films as a major entertainme... more ... Hindi film songs. 8. The Hausa video film soundtrack Hausa video films as a major entertainment form started with the production of the first Hausa film on cassette in March 1990, Turmin Danya (dir. Salisu Galadanci). The first ...
Uploads
Papers by Muhammad inuwa adamu