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Search Results: 1 - 10 of 298146 matches for " Shuaibu J. Yahya "
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Assessment of the knowledge, attitude and practice of rural women of northeast Nigeria on risk factors associated with cancer of the Cervix  [PDF]
Babatunji A. Omotara, Shuaibu J. Yahya, Mary O. Amodu, John S. Bimba
Health (Health) , 2013, DOI: 10.4236/health.2013.59186

Cervical cancer is the leading cancer-related cause of death among women in Nigeria. An estimated 70,700 new cases occur each year, representing one quarter of all female cancers in sub Saharan Africa. The magnitude of the problem has been under recognised and under prioritised compared with the competing health priorities of infectious diseases such as HIV/ AIDS, tuberculosis and malaria. Studies in the United States and Nigeria have indicated that the disease has the highest incidence among the lowest socio-economic groups especially residing in rural areas. The peak age for the disease has been shown to be within 35-45 years age group. Knowledge of the risk factors of the disease is deemed important in its early detection and prevention. The objective of this study was to assess the knowledge, attitude and practice of rural women with cancer of the cervix. A cross sectional descriptive study was conducted among 1600 rural women aged 15-55 years (randomly selected from 28 villages) who were interviewed using a structured questionnaire between April and June, 2010. The majority (82.2%) were married before the age of 20 years and 19.3% before 15 years, 40% in polygamous union, 22.6% have had 2 or more sexual partners, 71.3% were primi and grand multiparous, 7.5% have had previous treatment for STIs and 10.1% were on various types of contraceptive. 454 (28.4%) have heard of Ca cervix, 358 (22.4%) knew the location of the cervix. 2.3% had Pap smear test of which 72.6% were within 2 years. The majority (89.9%) will avail themselves for screening.

Assessment of the Determinants of Healthy Ageing among the Rural Elderly of North-Eastern Nigeria  [PDF]
Babatunji Abayomi Omotara, Shuaibu Jauro Yahya, Zara Wudiri, Mary Olubisi Amodu, John Samson Bimba, Jasper Unyime
Health (Health) , 2015, DOI: 10.4236/health.2015.76090
Abstract: Healthy ageing is a lifelong process optimizing opportunities for improving and preserving health and physical, social and mental wellness, independence, quality of life and enhancing successful life-course transition. In Sub-Saharan Africa, it is estimated that the number of elderly persons will rise from about 37.1 million in 2005 to 155.4 million in 2050. The elderly population in Nigeria is estimated at 4 percent and is expected to triple by the year 2020. The increasing number of the older population will increase the burden on the health resources. The objective of this study was to evaluate the determinants of healthy ageing among rural elderly in northern Nigeria in order to promote those that have positive correlation with healthy aging. A cross sectional descriptive study was conducted among 1600 rural elderly aged ≥60 years using interviewer administered semi-structured questionnaire between June and July, 2011. Majority (53.8%) are 60 - 64 years, 24.6% >69 years, 72.4% are males while most are Muslims (85.6%) and 81. 4% are still married. Most are farmers (48.9%) while 73.6% have no formal education. 85.3% earn less than $100 monthly while 47.6% have no income. 93.5% do not take alcohol, 92.1% do not smoke and 89.8% are physically active. 83.1% have normal blood pressure (on examination), 88.3% normal blood glucose level (on examination). Diet, no smoking, high physical activity and adequate sleep are positively correlated with healthy aging (p < 0.05). Good health practices and family support should be sustained while special care for the aged should be established by the government.
Communication and Memory Architecture Design of Application-Specific High-End Multiprocessors
Yahya Jan,Lech Jó?wiak
VLSI Design , 2012, DOI: 10.1155/2012/794753
Abstract: This paper is devoted to the design of communication and memory architectures of massively parallel hardware multiprocessors necessary for the implementation of highly demanding applications. We demonstrated that for the massively parallel hardware multiprocessors the traditionally used flat communication architectures and multi-port memories do not scale well, and the memory and communication network influence on both the throughput and circuit area dominates the processors influence. To resolve the problems and ensure scalability, we proposed to design highly optimized application-specific hierarchical and/or partitioned communication and memory architectures through exploring and exploiting the regularity and hierarchy of the actual data flows of a given application. Furthermore, we proposed some data distribution and related data mapping schemes in the shared (global) partitioned memories with the aim to eliminate the memory access conflicts, as well as, to ensure that our communication design strategies will be applicable. We incorporated these architecture synthesis strategies into our quality-driven model-based multi-processor design method and related automated architecture exploration framework. Using this framework, we performed a large series of experiments that demonstrate many various important features of the synthesized memory and communication architectures. They also demonstrate that our method and related framework are able to efficiently synthesize well scalable memory and communication architectures even for the high-end multiprocessors. The gains as high as 12-times in performance and 25-times in area can be obtained when using the hierarchical communication networks instead of the flat networks. However, for the high parallelism levels only the partitioned approach ensures the scalability in performance. 1. Introduction The recent spectacular technology has enabled implementation of very complex multi-processor systems on single chips (MPSoCs). Due to this rapid progress, the computational demands of many applications, which required hardware solutions in the past, today can be satisfied by software executed on micro-, signal-, graphic-, and other processors. However in parallel, new highly demanding embedded applications are emerging, in fields like communication and networking, multimedia, medical instrumentation, monitoring and control, military, and so forth, which impose stringent and continuously increasing functional and parametric demands. The demands of these applications cannot be satisfied by systems implemented with
The Effect of Hygroscopic Growth on Continental Aerosols  [PDF]
Bello Idrith Tijjani, Aliyu Aliyu, Fatima Shuaibu
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.36048
Abstract: In this paper, the authors investigated some microphysical and optical properties of continental clean aerosols from OPAC to determine the effect of hygroscopic growth at the spectral range of 0.25 μm to 2.5 μm and eight relative humidities (RHs) (0%, 50%, 70%, 80%, 90%, 95%, 98% and 99%). The microphysical properties extracted were radii, volume mix ratio, number mix ratio and mass mix ratio as a function of RH while the optical properties are scattering and absorption coefficients and asymmetric parameters. Using the microphysical properties, growth factors of the mixtures were determined while using optical properties the enhancement parameters were determined and then parameterized using some models. We observed that the data fitted the models very well. The angstrom coefficients show that the mixture has bimodal type of distribution with the dominance of fine mode particles.
Morphometric Assessment of Wadi Wala Watershed, Southern Jordan Using ASTER (DEM) and GIS  [PDF]
Yahya Farhan
Journal of Geographic Information System (JGIS) , 2017, DOI: 10.4236/jgis.2017.92011
Abstract: Morphometric analysis is of vital concern to understand hydromophological processes in a given watershed, and thus, it is a priority for assessing water resources in drainage basins. A morphometric analysis was conducted to identify the drainage properties of Wadi Wala and the 23 fourth-order sub-basins. ASTER DEM data was employed to compile slope, elevation, and aspect maps. Arc GIS software was used to measure and calculate basic, derived and shape morphometric parameters. W. Wala is found to be a sixth-order drainage basin, and the drainage pattern is trellis to sub-trellis in the central and lower part of the catchment, whereas it is dendritic to sub-dendritic pattern in the southern and northern parts. The slopes of the catchment vary from 0° - 5° to >35° in slope categories. Tectonic uplifting and tilting, lithology, structure and rejuvenation are the major factors controlling morphological variation over the watershed. The recognized fault systems are chiefly controlling the drainage pattern, and the elongated shape of the sub-basins is attributed to dense lineaments in the central and eastern parts of the watershed. The Rb values for the entire catchment and the sub-catchments range from 2 to 7, with a mean of 4.55, which indicates the distortion of drainage pattern by geological structure. Hypsometric integral values are high for the W. Wala watershed and the sub-basins, where it ranges from 70% to 89%. High HI values indicate that drainage basins are at the youth-age stage of geomorphic development, and they are affected by tectonic uplifting, tilting, and the dominance of hillslope process. Variation in HI values is apparent between sub-basins located at the western part, or, the rejuvenated belt where HI values range from 85% to 89%. Whereas the HI values of the sub-basins located at the eastern part of the watershed, vary from 70% to 84%. Regression analysis reveals that R2 values, which represent the degree of control of driving parameters on HI are reasonably high for the height of local base level (m) and the mean height of sub-basins (m). Both parameters contribute 0.42 and 0.39 respectively (where the F-value is significant at 0.1% and 0.5% levels). Such results imply that the height of local base level (m), and the mean height (m) are the only morphometric driving parameters which have significant control on HI values in the W. Wala watershed. High annual soil loss and sediment load estimated recently, denote that the catchment is highly susceptible to surface erosion at present. Hence, the present study, and
The Investigation of Furnace Operating Characteristics Using the Long Furnace Model
Shuaibu Ndache MOHAMMED
Leonardo Journal of Sciences , 2007,
Abstract: This work reports the results of the numerical evaluation of some furnace operating characteristics by use of the ‘long furnace model’. The furnace characteristics considered include the furnace output, efficiency, heat input, stock emissivity and line speed. In this analysis, it is found that the computed wall to stock view factors differ from those obtained by graphical method in the range of 0 - 0.46%. This suggests that computed results could be used with confidence. The effects of stock emissivity on both the furnace efficiency and output increased as the furnace zones increase. Furnace performances are influenced by the heat input to the enclosure with the maximum performance being at a heat input of 700kW. It was found in all analyses that the higher the number of furnace zones, the better will be the furnace performance.
Investigating the Effect of Changes in Furnace Operating Conditions Using the Well-Stirred Model
Shuaibu Ndache MOHAMMED
Leonardo Electronic Journal of Practices and Technologies , 2007,
Abstract: An investigation into the effect of changes in furnace operating conditions employing the application of the ‘well-stirred furnace model’ is presented in this work. The operating conditions considered were the air preheats convection, fuel flow rates, excess air and air infiltration. For each of these conditions, the mean gas temperature, furnace output and thermal efficiencies were evaluated. The results show that apart from excess air and air infiltration, the effect of all the other operating conditions indicated an enhancement in the furnace performance.
Design and Construction of a Hydraulic Ram Pump
Shuaibu Ndache MOHAMMED
Leonardo Electronic Journal of Practices and Technologies , 2007,
Abstract: The Design and Fabrication of a Hydraulic Ram Pump (Hydram) is undertaken. It is meant to lift water from a depth of 2m below the surface with no other external energy source required. Based on the design the volume flow rate in the derived pipe was 4.5238 × 10-5 m3/s (2.7 l/min), Power was 1.273 kW which results in an efficiency of 57.3%. The overall cost of fabrication of this hydram shows that the pump is relatively cheaper than the existing pumps.
Numerical Computation of Net Radiative Heat Transfer within a Non Absorbing Furnace Enclosure
Shuaibu Ndache MOHAMMED
Leonardo Journal of Sciences , 2006,
Abstract: The numerical evaluation of the net radiative heat transfer rate in a single zone, non absorbing furnace enclosure is reported. In this analysis, simplified mathematical furnace model namely, the long furnace model is used to determine furnace performance. The formulation assumes some known temperature values. Thus, heat transfer equations were set up and solved numerically. A FORTRAN computer program was developed and debugged. Results obtained from this study compare favourably well with the results from the traditional graphical method. Also, the computer program developed can handle variations in furnace operating conditions, temperatures, thermal properties and dimensions.
A Cluster Analysis of Lifestyle and Health Habits of Youth from Two Geographically and Culturally Diverse Countries  [PDF]
Yahya Al-Nakeeb, Lorna J. Dodd, Peter Collins, Mark Lyons, Anwar Al-Nuaim
Open Journal of Preventive Medicine (OJPM) , 2014, DOI: 10.4236/ojpm.2014.44025

Objectives: Obesity is a leading risk factor for global mortality, promoted by poor dietary habits and sedentary behaviour. This study explores the clustering and differences in dietary habits, body mass index (BMI) and physical activity (PA) amongst youth from United Kingdom (UK) and Saudi Arabia (SA). Methods: 2290 males and females aged 15-17 years completed a self-report questionnaire and an objective measure of BMI. Results: Youth from SA had a higher prevalence of overweight/obesity and lower levels of PA than youth from the UK. Males were more physically active than females across both countries. Three clusters were identified: a “high risk” cluster with least healthy dietary habits, low PA and high BMI; a “moderate cluster” with moderate healthy dietary habits, PA and BMI; a “low risk” cluster with healthiest dietary habits, greatest PA and the lowest BMI compared to the other clusters. There were more SA youth in the high and moderate risk clusters compared to UK youth. Conclusions: Exploring cross-cultural and demographic characteristics of youth enables the identification of similarities and differences that might lead to the development of universal intervention strategies.

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