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Search Results: 1 - 10 of 461969 matches for " A Anyamene "
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Promoting and Protecting the Sexual and Reproductive Health of Adolescents in Anambra State South East Nigeria: Implications for Counseling
A Anyamene, C Anyamene
African Research Review , 2009,
Abstract: Sexuality activity during adolescence puts adolescents at risk of sexual and reproductive health problems. Hence, this study was undertaken to determine the factors that contribute to adolescent reproductive health problem and what to be done to promote and protect the sexual and reproductive health of adolescents. Two research questions and one null hypothesis guided the study. Study sample consisted of all 144 practicing school counsellors in Anambra State. The instrument used for data collection was constructed by the researchers. The data collected were analyzed using means to answer research questions while the hypothesis was tested using t-test statistics at 0.05 level of significance. The results indicated no significant difference on the respondents’ mean ratings of male and female counsellors on what to be done to promote and protect the sexual and reproductive health of adolescents. Recommendations include that counsellors should provide adolescents with age-appropriate sexual and reproductive health information, empowers them to make responsible decisions regarding sexuality.
Determinants of Adolescent Reproductive Health Problems in Awka South Local Government Area South East Nigeria: Implication for Counselling
A Anyamene, C Anyamene
African Research Review , 2009,
Abstract: The study tried to find out the determinants of adolescent reproductive health problems in Awka South Local Government Area of Nigeria. The descriptive survey research design was used for the study. Four research questions guided the study. A total of two hundred and fourteen adolescent who attended antenatal clinic from January – June 2007 were used for the study. Questionnaire was the main instrument for data collection. The descriptive statistics of mean was use to analyze the data with a criterion mean at 2.50. The result revealed that sexual transmitted diseases, hypertensive diseases, hemorrhage, and anaemia were determinants of reproductive health problems among adolescents. Based on the findings, the researchers made some recommendations and counselling implications
Counselling for Facilitating Learning for the Attention – Deficit/Hyperactivity Disordered
A Anyamene, FE Anyachebelu
African Research Review , 2009,
Abstract: The study investigated the extent of counsellor’s identification of the symptoms of attention-deficit/hyperactivity disorder and the counselling strategies the counsellors use to facilitate learning for such learners. Two research questions and two hypotheses guided the study. The design of the study was survey. The area of the study is Anambra State. No sampling was done. 703 counsellors constitute the population of the study. The instrument for data collection was a questionnaire developed by the researchers. The instrument with two clusters was validated and reliability co-efficient of 0.86 and 0.92 were calculated using test re-test. Mean scores were used to answer the research questions while t-test was used to test the hypotheses at 0.05 level of significance. The findings revealed that counsellors could not identify some of the symptoms of attention-deficit/hyperactivity disorder and they do not use some counselling strategies for facilitating learning for the attention deficit/hyperactivity disordered. Also there was no significance different between the mean responses of male and female counsellors on the strategies for facilitating learning. Based on the findings, recommendations were made.
Studies on Low-cost Substrates and Other Cultural Conditions for Optimal Amylase Yield from Aspergillus oryzae-SR2
U.O. George-Okafor,F.O. Tasie,N.C. Anyamene
American Journal of Food Technology , 2013,
Abstract: The need for starch-converting enzymes in various industries has led to enormous interest in their production at a cheap rate. The present study was focused on the examination of various inexpensive substrates and other production parameters for amylase production by the most potential selected strain. It was observed that A. oryzae-SR2 was the best amylase producer (36.31±0.24 mm) among other Aspergillus isolates when screened by starch hydrolysis test. Preliminary submerged fermentation using soluble starch medium confirmed the potentials of A. oryzae-SR2 for amylase production. The maximum enzyme production under submerged fermentation was achieved with 0.5% sugar-cane juice supplemented with 0.5% dry-flakes fermented tapioca, 1% yeast extract, 7% inoculums concentration, pH 7.0, temperature of 55°C and incubation period of 48 h. The enzyme demonstrated strong hydrolytic activities (56.4%) on the tested starchy foods with cassava starch being the most hydrolyzed (101.5%) with 86.90±1.10% conversion efficiency at 70°C. The ability to produce high amount of amylase within a relatively short time (48 h) using cheap substrates and the ability of its enzyme to effectively hydrolyze starchy foods suggests its suitability for biotechnological application especially in starch-converting industries.
The Spread of Infectious Disease on Network Using Neutrosophic Algebraic Structure  [PDF]
A. Zubairu, A. A. Ibrahim
Open Journal of Discrete Mathematics (OJDM) , 2017, DOI: 10.4236/ojdm.2017.72009
Abstract: Network theory and its associated techniques has tremendous impact in various discipline and research, from computer, engineering, architecture, humanities, social science to system biology. However in recent years epidemiology can be said to utilizes these potentials of network theory more than any other discipline. Graph which has been considered as the processor in network theory has a close relationship with epidemiology that dated as far back as early 1900 [1]. This is because the earliest models of infectious disease transfer were in a form of compartment which defines a graph even though adequate knowledge of mathematical computation and mechanistic behavior is scarce. This paper introduces a new type of disease propagation on network utilizing the potentials of neutrosophic algebraic group structures and graph theory.
A Comparative Investigation of Lead Sulfate and Lead Oxide Sulfate Study of Morphology and Thermal Decomposition  [PDF]
S. A. A. Sajadi
American Journal of Analytical Chemistry (AJAC) , 2011, DOI: 10.4236/ajac.2011.22024
Abstract: The compound lead oxide sulfate PbSO4.PbO was prepared in our laboratory. The Thermal behavior of PbSO4 was studied using techniques of Thermogravimetry under air atmosphere from 25 to 1200°C. The identity of both compounds was confirmed by XRD technique. Results obtained using both techniques support same decomposition stages for this compound. The electron microscopic investigations are made by SEM and TEM. The compound is characterized by XRD and the purity was determined by analytical Methods. Also a series of thermogravimetric analysis is made and the ideal condition is determined to convert this compound to pure lead oxide.
Metal ion-binding properties of L-glutamic acid and L-aspartic acid, a comparative investigation  [PDF]
S. A. A. Sajadi
Natural Science (NS) , 2010, DOI: 10.4236/ns.2010.22013
Abstract: A comparative research has been developed for acidity and stability constants of M(Glu)1, M(Asp)2 and M(Ttr)3 complexes, which have been determined by potentiometric pH titration. Depending on metal ion-binding properties, vital differences in building complex were observed. The present study indicates that in M(Ttr) com-plexes, metal ions are arranged to the carboxyl groups, but in M(Glu) and M(Asp), some metal ions are able to build chelate over amine groups. The results mentioned-above demonstrate that for some M(Glu) and M(Asp) complexes, the stability constants are also largely determined by the affinity of metal ions for amine group. This leads to a kind of selectivity of metal ions, and transfers them through building complexes accompanied with glutamate and aspartate. For heavy metal ions, this building complex helps the absorption and filtration of the blood plasma, and consequently, the excursion of heavy metal ions takes place. This is an important method in micro-dialysis. In this study the different as-pects of stabilization of metal ion complexes regarding to Irving-Williams sequence have been investigated.
Determining the Basaltic Sequence Using Seismic Reflection and Resistivity Methods  [PDF]
A. Alanezi, A. Qadrouh
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.32B004
Abstract:

This study was carried out in Harat Rahat (south of Almadinah Almonwarah) using seismic reflection and resistivity methods. The main objectives of this study are to determine the extent of the basaltic layer and to define the subsurface faults and fractures that could affect and control the groundwater movement in the study area. A 2D seismic profile was acquired and the result shows that the subsurface in the study area has a major fault. We obtained a well match when the seismic result was compared with drilled wells. As a complementary tool, the resistivity method was applied in order to detect the groundwater level. The results of the resistivity method showed that six distinct layers have been identified. The interpretation of these six layers show that the first three layers, the fourth layer, the fifth layer and the bottom of the section indicated various subsurface structures and lithologies; various basaltic layers, fractured basalt, weathered basement and fresh basaltic layers, respectively. It is obvious that the eventual success of geophysical surveys depend on the combination with other subsurface data sources in order to produce accurate maps.

Equilibria and Stability in Glycine, Tartrate and Tryptophan Complexes, Investigation on Interactions in Cu(II) Binary and Ternary Systems in Aqueous Solution  [PDF]
S. A. A. Sajadi
Open Journal of Inorganic Non-metallic Materials (OJINM) , 2014, DOI: 10.4236/ojinm.2014.41001
Abstract:

The acidity and stability constants of M(Gly)1, M(Ttr)1, and M(Trp)1 M: Cu2+, Cu(Bpy2)2+, and Cu(Phen3)2+ complexes, were determined by potentiometric pH titration. It is shown that the stability of the binary Cu(L), (L: Gly, Ttr, and Trp) complex is determined by the basicity of the carboxylate group on one side and amino group on the other side. It is demonstrated that the equilibrium, Cu(Ha4)2+ + Cu(L) \"\"Cu(Har)(L) + Cu2+, is displacement due to the well known experience that mixed ligand complexes formed by a divalent 3d ion, a heteroaromatic N base and an O donor ligand possess increased stability. The stability constants of the 1:1 complexes formed between Cu2+, Cu(Bpy)2+ or Cu(Phen)2+

Adaptive Fuzzy Sliding Mode Controller for Grid Interface Ocean Wave Energy Conversion  [PDF]
Adel A. A. Elgammal
Journal of Intelligent Learning Systems and Applications (JILSA) , 2014, DOI: 10.4236/jilsa.2014.62006
Abstract:

This paper presents a closed-loop vector control structure based on adaptive Fuzzy Logic Sliding Mode Controller (FL-SMC) for a grid-connected Wave Energy Conversion System (WECS) driven Self-Excited Induction Generator (SEIG). The aim of the developed control method is to automatically tune and optimize the scaling factors and the membership functions of the Fuzzy Logic Controllers (FLC) using Multi-Objective Genetic Algorithms (MOGA) and Multi-Objective Particle Swarm Optimization (MOPSO). Two Pulse Width Modulated voltage source PWM converters with a carrier-based Sinusoidal PWM modulation for both Generator- and Grid-side converters have been connected back to back between the generator terminals and utility grid via common DC link. The indirect vector control scheme is implemented to maintain balance between generated power and power supplied to the grid and maintain the terminal voltage of the generator and the DC bus voltage constant for variable rotor speed and load. Simulation study has been carried out using the MATLAB/Simulink environment to verify the robustness of the power electronics converters and the effectiveness of proposed control method under steady state and transient conditions and also machine parameters mismatches. The proposed control scheme has improved the voltage regulation and the transient performance of the wave energy scheme over a wide range of operating conditions.

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