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Search Results: 1 - 10 of 446 matches for " Sule Abdullahi "
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Material Flow Analysis of Electronic Wastes (e-Wastes) in Lagos, Nigeria  [PDF]
Fatima Badiru Ibrahim, Donatus Begianpuye Adie, Abdul-Raheem Giwa, Sule Argungu Abdullahi, Charles Amen Okuofu
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.49117

The fate of end-of-life electronics (e-wastes) is of increasing concern because of their toxicity and ever increasing volumes. Addressing these concerns requires proper management plans and strategy which in turn requires reliable estimates of e-waste generation in the present as well as future times. In this study, a material flow model for the analysis of e-waste generation from computer equipments inNigeriahas been developed. Data used to develop the model are the sales data from major distributors of electronics, usage time of computer equipments and transfer coefficients of the electronics from one stage to another. The analysis of individual flows of computer from the material flow model showed that the fate of obsolete computer equipments were storage (41%), reuse (35%) and direct disposal (24%). The projections of the flows for a period of 15 years also indicated that storage and reuse of computer equipments would be preferred over direct disposal; and computer equipments would continue to remain in either storage, re-use or gradually disposed off for about 11 years after its inflow. This delay or staggering disposal is of advantage as it would reduce the amount of e-waste disposed yearly and also afford the country some time to make plans to accommodate and manage the e-wastes generated more efficiently.

Acquisition of Geospatial Database for Primary Schools in Kaduna Metropolis
J.O. Sule,H.S. Abdullahi,J. Bungwon
Research Journal of Environmental and Earth Sciences , 2012,
Abstract: A map is one of the final products of surveying. This is of many types and uses. A digital map of primary schools is a thematic map which shows the location, distribution, the number of private and public schools in a given area and other relevant information. At the present, such a map for Kaduna is not available. This project aims at producing a digital map showing the location of all private and public primary schools within Kaduna metropolis to aid planning and decision making. The project was carried out with the aid of handheld GPS receiver as a tool for the field data collection and the use of a digital map of Kaduna town as a base map on which the positions of these schools were plotted. The plotting was done using ArcGIS.
Comparative Susceptibility of Adult African Invader Fly Bactrocera invadens (Diptera: Tephritidae) to Some Selected Insecticides in Ghana
G. Abdullahi,H. Sule,D. Obeng-Ofori,K. Afre-Nuamah
Journal of Agricultural Science , 2012, DOI: 10.5539/jas.v4n8p182
Abstract: With the recent introduction of B. invadens in Africa and its devastating role in crop production, especially mango, with currently no registered insecticides for use against this fly in Ghana, the susceptibility of the fly to four commercially available insecticidal products namely, Cydim Super, Pyrinex 48 EC, Diazol 50 EW and Deltapaz was evaluated in the laboratory. The bioassay was conducted using three (3) different doses of each insecticidal product, by dipping 4x4 cm hardboard panels into the respective doses. Susceptibility of the flies to insecticides were assessed on freshly treated panels, 3-day-old and 6-day-old treated panels in some ventilated transparent bottles of 1 litre capacity. Adult flies aged between 4-12 days were used for the bioassays. The bioassay results indicated that the adult flies were more susceptible to Diazol (Diazinon) (LC50 = 0.6 ml/L; LC90 = 1.3 ml/L) and Pyrinex (Chlorpyrifos) (LC50 = 0.8 ml/L; LC90 =1.0 ml/L), and hence gave the least LT50 and LT90 times. Least susceptibility was recorded with Deltapaz (Deltamethrin) (LC50 = 3.1 ml/L; LC90 = 5.2 ml/L). It could be concluded that the control of B. invadens can be achieved more effectively by the use Pyrinex (Chlorpyrifos) and Diazol (Diazinon). The use of Pyrinex appears to be more economical to the resource poor farmers as it had least LC90 of 1.0 ml/L compared to 1.3 ml/L for Diazol in 30 min.
Investigation of a Suspected Malaria Outbreak in Sokoto State, Nigeria, 2016  [PDF]
Jalal-Eddeen Abubakar Saleh, Alemu Wondimagegnehu, Rex Mpazanje, Lynda Ozor, Sule Abdullahi
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1104246
Background: Malaria, a vector borne disease that contributes to the 17 percent of the global burden of infectious diseases, is preventable, treatable and completely curable. The disease is endemic in Nigeria, staggering at 27 percent prevalence and contributes up to 29 percent of global burden of the disease. It contributes to the high child mortality in Nigeria, attributed 30 percent of under five deaths. In October 2016, WHO team in Nigeria in collaboration with Nigerian Centre for Disease Control investigated a suspected malaria outbreak in Sokoto state of northwestern Nigeria. Materials and Methods: We reviewed hospital records of 190 patients who presented to the health facility with febrile illness, investigated and treated from 3/10/2016 to 25/10/2016. Data used during the study included age, sex, residential address, signs and symptoms. A cross-sectional survey was carried out in the region of the outbreak to assess the knowledge of the community on malaria control measures. SPSS version 24 was used for the data analyses. Results: Out of the 190 cases, 168 (88.4%) tested positive for RDT and 22 (11.5%) tested negative. The age range of the cases was from three months to 70 years (median: 14 years), the sex distribution was 118 (62.1%) females and 72 (37.9%) males, and the CFR of the RDT positive cases was 2.97% (5/168) with M:F ratio of 1:4. A survey to assess the knowledge of the affected community on malaria preventive measures shows 59.5% (25/42) are aware of at least three out of four measures asked. Conclusion: Although government commitment to malaria control is commendable, this suspected outbreak has clearly brought to fore some gaps in the on-going malaria control in Sokoto state. Thus, there is a need for government to intensify health education programmes on environmental hygiene, state malaria control programme to strengthen awareness campaigns on malaria interventions as well as improve access to the available interventions especially for the more vulnerable members of the community.
Reduction of Undercuts in Fillet Welded Joints Using Taguchi Optimization Method  [PDF]
Joseph Achebo, Sule Salisu
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2015, DOI: 10.4236/jmmce.2015.33020
Abstract: This project work focuses on the reduction of weld undercuts using the Taguchi method. The phenomenon of weld undercuts constitutes a major problem for the welding industry. When undercuts occur, and particularly when such cuts are deep, it has a negative impact on the weld as it lowers the integrity and quality of the weldment. Therefore, efforts are made globally to reduce the depth of such weld undercuts to the barest minimum. Several optimization methods have been adopted; however, in this study, the Taguchi method is applied. “The smaller the better components” of the Taguchi method is applied. From the results obtained from applying this Taguchi method, the optimum process parameters obtained are A2-B1-C2, which are a voltage of 20 V, a current of 180 A, and a welding speed of 130 mm/s, required to form an undercut of 0.03 mm. Whereas the existing process parameters used by the company are A1-B3-C, which make an undercut to a depth of 0.09 mm. It is concluded that the use of Taguchi method has been able to reduce the depth of undercut as shown in this study. A step-by-step approach is presented in the study.
The Leadership Contribution towards Pleasure Member of Kelompok Tani in Malang Regency East Java  [PDF]
Ugik Romadi, ? Hamyana, Suryaman Sule
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.612028
Abstract: This research specifically aims to know and analyze the value of direct contribution of leadership to the pleasure MEMBER OF KELOMPOK TANI in Malang Regency East Java Province. The method of this research is survey method. The location of the research was conducted on Kelompok Tani that was targeted by the UPSUS of Increasing Production of Paddy, Corn and Soybeans in 2017. Research Objects are Farmers who become group leaders and group members who are members of farmer groups who receive assistance UPSUS program to Increasing Production Rice, Corn and Soybean. The results showed that the direct effect of leadership variables on member satisfaction has a significance value greater than 0.05 (0.210), which means no significant effect. The results showed that the direct effect of leadership variables on member satisfaction has a significance value greater than 0.05 (0.210), which means no significant effect. While the standardized value of beta coefficient on t test shows that the magnitude of direct influence of leadership on member satisfaction is equal to 0.115 or rounded to 11%. That is, the high level of member satisfaction can only be influenced by the leadership of 11% while the rest (89%) influenced by other factors outside the model.
Perturbation Theory on Top of Optimized Effective Potential Method
P. Sule
Physics , 1999,
Abstract: We present a perturbative approach within the scope of Kohn-Sham density functional theory (DFT). The method is based on the exact exchange-only optimized effective potential method, and correlation is included via perturbation expansion using Rayleigh-Schrodinger (RS) perturbation theory (PT). The correlation potential is constructed from Moller-Plesset formulation of RS calculations. This naturally leads to a new iterative scheme when finite order perturbation theory is employed. The new iterative procedure can be taken as a self-consistent parameter-free DFT PT, and, as such, provides correlation energy which is explicitly functional of the self-consistent orbitals, eigenvalues and also of the exchange-correlation potential.
Generalization of Boole-Shannon expansion, consistency of Boolean equations and elimination by orthonormal expansion
Virendra Sule
Computer Science , 2013,
Abstract: The well known Boole-Shannon expansion of Boolean functions in several variables (with co-efficients in a Boolean algebra $B$) is also known in more general form in terms of expansion in a set $\Phi$ of orthonormal functions. However, unlike the one variable step of this expansion an analogous elimination theorem and consistency is not well known. This article proves such an elimination theorem for a special class of Boolean functions denoted $B(\Phi)$. When the orthonormal set $\Phi$ is of polynomial size in number $n$ of variables, the consistency of a Boolean equation $f=0$ can be determined in polynomial number of $B$-operations. A characterization of $B(\Phi)$ is also shown and an elimination based procedure for computing consistency of Boolean equations is proposed.
An algorithm for Boolean satisfiability based on generalized orthonormal expansion
Virendra Sule
Computer Science , 2014,
Abstract: This paper proposes an algorithm for deciding consistency of systems of Boolean equations in several variables with co-efficients in the two element Boolean algebra $B_{0}=\{0,1\}$ and find all satisfying assignments. The algorithm is based on the application of a well known generalized Boole-Shannon orthonormal (ON) expansion of Boolean functions. A necessary and sufficient consistency condition for a special class of functions was developed in \cite{sule} using such an expansion. Paper \cite{sule} develops a condition for consistency of the equation $f(X)=0$ for the special classes of Boolean functions 1) $f$ in $B(\Phi(X))$ for an ON set $\Phi$ of Boolean functions in $X$ over a general Boolean algebra $B$ and 2) $f$ in $B(X_{2})(\Phi(X_{1}))$. The present paper addresses the problem of obtaining the consistency conditions for arbitrary Boolean functions in $B_{0}(X)$. Next, the consistency for a single equation is shown equivalent to another system of Boolean equations which involves the ON functions and characterizes all solutions. This result is then extended for Boolean systems in several variables over the algebra $B_{0}=\{0,1\}$ which does not convert the system into a single equation. This condition leads to the algorithm for computing all solutions of the Boolean system without using analogous resolution and determine satisfiability. For special systems defined by CNF formulas this algorithm results into an extension of the DPLL algorithm in which the \emph{splitting rule} is generalized to several variables in terms of ON terms in the sense that splitting of CNF set in a single variable $x$ is equivalent to ON terms $x,x'$.
Psychological effects of parenting children with autism prospective study in Kuwait  [PDF]
Abdullahi Fido, Samira Al Saad
Open Journal of Psychiatry (OJPsych) , 2013, DOI: 10.4236/ojpsych.2013.32A002

Background: Recent reports suggest that the prevalence of autism in the Arab world ranges from 1.4 cases per 10,000 children inOmanto 29 per 10,000 children in theUnited Arab Emirates. While these rates are lower than those of the developed world, which are 39 per 10,000 for autism and 77 per 10,000 for all forms of autism spectrum disorders (ASD), it does not necessarily mean the condition is less prevalent in the Arab world. Objectives: Studies of parents with children with autism suggest that 35% - 53% of mothers with children show various degrees of depressive symptoms. However, many of these studies were conducted in western countries which still make little inferences about the prevalence of these stresses in Arab countries uncertain. No data are available on the use of the BDI on parents of children with autism in Kuwait. The aim of the present study was to evaluate the prevalence of parental depression in families of children with autism and in control families. Subjects and Methods: The participants in this study were 120 mothers and fathers of autistic children whose children were attending the Kuwait Autism Center at the time of this study. They were asked to complete the Arabic translated version of the Beck’s Depression Inventory (BDI). It consists of 21 symptoms or attitudes commonly seen in patients suffering from depression. The symptoms are rated from “0”to “3”in intensity. The following cut-off points of depressive symptoms were used when interpreting the results in the present study: the range of scores from 0 to 9 indicates no depression, 10 - 20 dysphoria and over 20 depression. Results: The mean standard deviation scores for the mothers of autistic children were 21.2 ÷ 2.9 and 10.3 ÷ 2.1, (p = 0.001) for the control mothers respectively. No significant difference were observed across the samples of fathers other than slight increase for the autistic group. Marital status did not affect the number of mothers of the autism groups who had elevated depression scores, but single mothers in both groups had higher elevated depression scores than mothers living with partners, (x2 = 6.4, p < 0.005). Out of mothers with autistic children, 32.3% had depression and 41.5% had dysphoria while, 10% of control mothers had depression and 16% had dysphoria, x2 = 6.3 (p < 0.001). Conclusion: It is clear from our findings that mothers of autistic children have higher parenting-related stress and psychological distress as compared to

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