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Search Results: 1 - 10 of 3121 matches for " Helen Adetoun Lawal "
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Genetic control of protein and glucose-anabolic-enzyme syntheses by Saccharomyces cerevisiae in the fermentation of a Nigerian rice, Oryza sativa variety “Igbimo”  [PDF]
Bolatito Esther Boboye, Helen Adetoun Lawal
Advances in Bioscience and Biotechnology (ABB) , 2011, DOI: 10.4236/abb.2011.25052
Abstract: This work aimed at the control of the production of protein and glucose-anabolic-enzyme (GAE) by Saccharomyces cerevisiae during the fermentation of a Nigerian rice, Oryza sativa variety “Igbimo”. The yeast was mutated with ethylmethyl sulphonate. The variants and the parental yeast were separately inoculated into cooked rice and allowed to ferment at 27℃ for 7 days after which protein content and glucose-anabolic-enzyme synthesis were determined using Dinitrosalicylic acid and Biuret reagents techniques. Mutants with varying capacities to form protein and GAE were obtained. Glucose-Anabolic-Enzyme (GAE) activity ranged from 0.25 to 12.06 Units forming five groups (classes 1, 2, 3, 4 and 5) with the average activity of 0.52, 1.52, 2.28, 4.04 and 10.63 Units respectively compared with that (0.38 Unit) of the parent strain. All the mutants synthesized protein although many of them produced it at lower level while others at higher level than the wild-type. The highest (5.92 mg/mL) and lowest (0.10 mg/mL) levels protein producers are mutants 44 and 14 respectively. Mutants No. 4, 7, 22 and 78 formed total protein similar in concentrations (1.46, 1.46, 1.45 and 1.45 mg/mL) to that of the wild yeast (1.46 mg/mL). These three sets of protein concentration have ratios 4.1 (highest), 0.07 (lowest) and 1.0 (normal) to that of the parental yeast.
Factors Affecting Academic Achievement of Students in Senior School Certificate Examination (SSCE) in Christian Religious Knowledge
BObZ Lawal
African Research Review , 2010,
Abstract: The study investigated the factors affecting academic achievement ofstudents in Senior School Certificate Examination (SSCE) in ChristianReligious Knowledge. A total of three hundred students in SS III from five secondary schools were randomly selected and used as sample for the study. Five hypotheses were tested, using chi-square analysis. The study established the following: Students who have positive attitude, interest and good perception of the subject perform better than those with negative attitude towards Christian Religious Knowledge. Students from high socio-economic status perform better than those from low socio-economic background in Christian Religious Knowledge. Students from private primary schools perform better than students from public schools in Christian Religious Knowledge. Girls perform better than boys in Christian ReligiousKnowledge. Arts oriented students show more superiority in ChristianReligious Knowledge compared to science students. Recommendations thatcan enhance the students achievement in the subject were made.
Board Dynamics and Corporate Performance: Review of Literature, and Empirical Challenges
Bello Lawal
International Journal of Economics and Finance , 2011, DOI: 10.5539/ijef.v4n1p22
Abstract: This paper is an attempt to conduct a comprehensive survey of relevant literatures in respect of the relationship between board dynamics and firm performance. The investigation reveals that equivocal findings still dominates most of the previous studies on key board dynamics such as Size, composition, CEO Duality and Diversity amongst others. While the need to assess the connection between board characteristics and corporate performance would for a longtime remained a legitimate and interesting area of investigation, the paper recommend that the researchers avoid mistakes of the past. These include over reliance on singular theory, the use of lone performance measure and most importantly the assumption of express relationship between the two variables. The use of more purposeful process based approach that identifies the cause effect of the relationship would be of tremendous benefit to this vital field of study.
Osteoprotegerin Secretion by Mevastatin via p38MAPK and NF-kB  [PDF]
Helen Smith
Open Journal of Rheumatology and Autoimmune Diseases (OJRA) , 2012, DOI: 10.4236/ojra.2012.22006
Abstract: Osteoprotegerin (OPG) is a protein produced by many cell types that has the remarkable property of inhibiting bone loss. It does this by binding to the key bone resorptive cytokine, receptor activator of NF-kB ligand (RANKL). This cytokine is produced mainly by osteoblastic cells and is instrumental in osteoclast differentiation. If the ratio of RANKL:OPG increases, bone resorption increases and results in bone loss in diseases such osteoporosis, rheumatoid arthritis and hypercalcaemia of malignancy. Hence, if drugs can be found that increase OPG, this will decrease the activity of osteoclasts and therefore bone resorption. Statins are cholesterol lowering drugs that have recently been shown to increase bone formation in rodents. It was hypothesised from this finding that this could be due to an increase in OPG production. If these commonly prescribed drugs could be used to prevent bone loss or to increase bone formation then this may prove a useful means of reducing fracture risk in patients. Treating Saos-2 osteoblast-like cells in vitro with mevastatin increased OPG production and secretion through the mevalonate pathway. A failure of geranylgeranylation of Rho and/or farnesylation of Ras proteins leads to an increase in PI-3K activation then AKT activation leading to several different signaling pathways such as MAPK’s and NF-kB. NF-kB and p38MAPK inhibitors prevented the statin stimulation of OPG but not the decrease in cell number, suggesting that statins regulate OPG secretion via PI-3K, p38MAPK and NF-kB.
Religious Wear (Uniforms) in Psychiatry  [PDF]
Helen Bright
Open Journal of Psychiatry (OJPsych) , 2014, DOI: 10.4236/ojpsych.2014.42015
Abstract:

Uniforms represent more than just a body cover. There could be symbols of status, power, authority, values, beliefs, identity, wealth representation, self-protection, health and safety, suppression of individuality and identification on one hand by the wearer. The observers may perceive uniforms differently based on their experiences, expectations, education, perceptual ability, conformity, status, power, self-confidence, and need for trust and communication without barrier or judgment. Forty five adult mentally ill patients (21 female and 24 male) were administered questionnaires with Linkert Scale regarding how approachable or off-putting they find casual and religious wear in social worker. Significantly more patients preferred casual wear to religious. Chi squared test equals 28.689 with p value of less than 0.0001 for four degrees of freedom.

The Influence of L2 Transfer on L3 English Written Production in a Bilingual German/Italian Population: A Study of Syntactic Errors  [PDF]
Helen Forsyth
Open Journal of Modern Linguistics (OJML) , 2014, DOI: 10.4236/ojml.2014.43036
Abstract:

This study attempts to examine and identify instances of negative “interlanguage transfer” (Sharwood Smith & Kellerman, 1986), which is a phenomenon belonging to the broader field of crosslinguistic influence, in written L3 English production in a bilingual Italian/German population. Transfer from learners’ L2 has attracted increasing attention over recent years (De Angelis & Selinker, 2001; Jessner, 2006) and research has suggested various potential triggers for facilitative and negative L2 transfer, as well as producing mixed results regarding the individual aspects of language that may be susceptible to transfer from a learner’s L2. Quantitative data were collected from 46 subjects in the form of questionnaires enquiring about language backgrounds and attitudes, and written summaries. The Statistical Package for Social Science was used to analyse specific instances of written syntactic errors resulting from both L1 and L2 transfer and these were then examined in the light of the questionnaire responses in order to identify possible determining factors behind any L2 transfer for both linguistic groups. Results provided evidence of negative syntactic L2 transfer from German and Italian in English L3, yet the possible determining factors were sometimes unexpected and not necessarily identical for both groups. This study suggests that L2 transfer in multilingual settings is a very real possibility which may be of future interest in terms of multilingual language processing and have consequences for the L3 classroom.

Designing Economics Electives with a Significant Writing Component  [PDF]
Helen Schneider
Creative Education (CE) , 2017, DOI: 10.4236/ce.2017.84040
Abstract: This paper presents a design for the structure and assessment of a research paper assignment in an upper level economics elective with a significant writing component. Writing component design focuses on what graduating economics majors should be able to do with the knowledge they acquire in the major and on their ability to create original analysis and empirical models in courses with and without an econometrics prerequisite. The author provides writing workshop and minimal marking approaches to improving the writing skills of undergraduates. Finally, the paper presents the link between main modules of the course and proficiencies we expect from graduating majors.
Optimization of Blasting Parameters Using Regression Models in Ratcon and NSCE Granite Quarries, Ibadan, Oyo State, Nigeria  [PDF]
Jide Muili Akande, Abiodun Ismail Lawal
Geomaterials (GM) , 2013, DOI: 10.4236/gm.2013.31004
Abstract:

This research examines optimization of blasting parameters for economic production of granite aggregates in Ratcon and NSCE quarries located atIbadan,OyoState. Samples were collected from the study areas for the determination of rock density and porosity. Schmidt hammer was used for in situ determination of rock hardness. Uniaxial compressive strength of in situ rock was estimated from the values obtained from Schmidt hammer rebound hardness test and density determined from laboratory test. Blasting data were collected from the study areas for optimization. Multiple regression analysis using computer aided solution SPSS (Statistical Package for the Social Sciences) was used to analyse data obtained from the laboratory test, field test and the study areas. The estimated mean uniaxial compressive strength value of NSCE is 240 MPa and that of Ratcon is 200 MPa and their average densities and average porosities are2.63g/cm3,2.55g/cm3, 1.88% and 2.25% respectively. Eleven parameters were input into the multiple regression analysis to generate the models. Two parameters out of eleven input parameters such as geometric volume of blast (Y1) and number of boulders generated after blasting (Y2) were dependent variables and the remaining nine such as X1 (Drill hole diameter), X2 (Drill hole depth), X3 (Spacing), X4 (Burden), X5 (Average charge per hole), X6 (Rock density), X7

Use of Laryngeal Mask Airway in the Management of a Difficult Airway: A Case Report  [PDF]
Elizabeth Ogboli-Nwasor,Ahmad Tijjani Lawal
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.32024
Abstract: Background: Difficulty in management of the airway occurs most frequently in patients who have Mallampati grade III and IV, and other unfavourable airway findings like short neck, restriction in range of motion of the temporoman-dibular joints and inadequate neck flexion and extension. Because of unavailability of fibreoptic bronchoscopes or inexperience in their use, laryngeal mask airway (LMA) has become a common and acceptable airway management option. This is a case report of a postmenopausal woman who had her airway managed with LMA following initial failed intubation necessitating a rescheduling of the operation. Result: The patient had a successful surgery and postoperative recovery was uneventful. Conclusion: The LMA is a useful option in the management of an anticipated or unexpected difficult airway, especially in resource-poor settings where fibreoptic bronchoscopes may not be readily available.
Use of Laryngeal Mask Airway in the Management of a Difficult Airway: A Case Report  [PDF]
Elizabeth Ogboli-Nwasor, Ahmad Tijjani Lawal
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.32024
Abstract:
Background: Difficulty in management of the airway occurs most frequently in patients who have Mallampati grade III and IV, and other unfavourable airway findings like short neck, restriction in range of motion of the temporoman-dibular joints and inadequate neck flexion and extension. Because of unavailability of fibreoptic bronchoscopes or inexperience in their use, laryngeal mask airway (LMA) has become a common and acceptable airway management option. This is a case report of a postmenopausal woman who had her airway managed with LMA following initial failed intubation necessitating a rescheduling of the operation. Result: The patient had a successful surgery and postoperative recovery was uneventful. Conclusion: The LMA is a useful option in the management of an anticipated or unexpected difficult airway, especially in resource-poor settings where fibreoptic bronchoscopes may not be readily available.
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