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Search Results: 1 - 10 of 461654 matches for " Cephas A. Gbande "
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Decision Theory and Analysis: An Optima Value Creation Precursor for Organizations  [PDF]
Cephas A. Gbande, Paul T. Akuhwa
Open Journal of Applied Sciences (OJAppS) , 2015, DOI: 10.4236/ojapps.2015.57036
Abstract: Organizations make many informed decisions such as increasing production capacity, improving human capital, entering a new market etc. This paper shows that executives take either of the two major types of decisions: programmed (structured) and nonprogrammed (unstructured) decisions. While the programmed decisions are for perfectly stable situations, the nonprogrammed decisions are for the real world situation surrounded by uncertainties, risks and ambiguities. For an optima value creation, this paper is succinct that a robust decision theory and analysis serve as a precursor. The environment of decision-making keeps changing and it takes decision-making for organizations to change proportionately to these environmental changes if they must survive. The decision-maker uses probability values to convert uncertainties and risks into perfect knowledge poles so as to make informed decisions. Models are veritable decision making tools and are deterministic and probabilistic (or stochastic) for programmed and nonprogrammed decisions respectively. Real-world value optimization in this paper centres on decisions under pure uncertainty and risky situations generating model fits for an optima value creation. Finally, the optima value creation models under the uncertainty and risk are suggested and organizations advised to use professional decision theorists and analysts as the need arise.
Knowledge-Based Entrepreneurship and Globalization: Correlates for the Wealth of Nations and Perspectives from Nigeria  [PDF]
Paul T. Akuhwa, Cephas A. Gbande, Benedict S. Akorga, Zachariah S. Adye
Open Journal of Applied Sciences (OJAppS) , 2015, DOI: 10.4236/ojapps.2015.58046
Abstract: Though Knowledge based entrepreneurship (KBE) is yet an evolving concept and globalization is without an acceptable concept globally, their tenets represent sound methods and strategies for socioeconomic development. Inextricably, KBE and globalization phenomena could be seen as mutually exclusive and collectively exhaustive in exploiting socioeconomic development capital. In this paper, the authors investigated and found out that the defining role of both KBE and globalization was to relate as correlates for the wealth of nations, and also was in an invaluable relationship. KBE is defined as variables that engender innovation, creativity, entrepreneurial culture and orientation with science and technology to underpin optima value creation. These include measurable inputs such as micro, small and medium enterprises (MSME) performance and literacy rates at a given time period in the economy. Globalization on the other hand is a multifaceted, multidisciplinary and complex phenomenon that is proxy on economic, political and social globalization indexes, and internet penetration at a given time period in the same economy. This paper tested two hypotheses to prove the construct that KBE and globalization were correlates for wealth of nations with very significant results using secondary data. Research triangulation was also performed to pragmatically prove the results using primary data. Both meta-analyses were conducted using IBM SPSS 21 software on the main model, the multiple regression, a confirmatory model and the chi-square. Finally, the paper called for policy for improving training and education of science and technology content to the entrepreneurs, while taking a 360 degrees approach to promote and intensify globalization practices in Nigeria, and by extension, to other global economies.
Security Challenges of Virtualization Hypervisors in Virtualized Hardware Environment  [PDF]
Gabriel Cephas Obasuyi, Arif Sari
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2015, DOI: 10.4236/ijcns.2015.87026
Abstract: The concept of virtualization machines is not new, but it is increasing vastly and gaining popularity in the IT world. Hypervisors are also popular for security as a means of isolation. The virtualization of information technology infrastructure creates the enablement of IT resources to be shared and used on several other devices and applications; this increases the growth of business needs. The environment created by virtualization is not restricted to any configuration physically or execution. The resources of a computer are shared logically. Hypervisors help in virtualization of hardware that is a software interact with the physical system, enabling or providing virtualized hardware environment to support multiple running operating system simultaneously utilizing one physical server. This paper explores the benefits, types and security issues of Virtualization Hypervisor in virtualized hardware environment.
Accidental Subcutaneous Remifentanil Infusion as a Cause of Delayed Awakening after Craniotomy
Alexander Wolfson,Cephas Swamidoss
Case Reports in Anesthesiology , 2011, DOI: 10.1155/2011/919067
Abstract: We report a case of accidental subcutaneous infusion of remifentanil as a cause of delayed awakening after a craniotomy.
Demand for Fresh Vegetables in the United States: 1970–2010
Cephas Naanwaab,Osei Yeboah
Economics Research International , 2012, DOI: 10.1155/2012/942748
Abstract: This paper analyzes a demand system for eight major fresh vegetables in the USA using the most recently available dataset (1970–2010). A first-differenced Linear Approximate Almost Ideal Demand System (LA-AIDS) is applied to estimate price and expenditure elasticity of demand, imposing homogeneity and symmetry restrictions. We find that not only are consumers responsive to changes in own-prices but they also respond significantly to changes in prices of other fresh vegetables that are consumed together. Conditional budget share allocation to lettuce, cabbage, and celery has declined, while the share of the consumer dollar going to tomatoes, peppers, and onions has increased over the period. Except for cabbage, all own-price elasticity estimates are negative, less than unity in absolute value, and statistically significant. About half of the 56 cross-price elasticities are negative and significant, indicating high, albeit asymmetric, complementarities among these fresh vegetables. Expenditure elasticities are positive and significant for all but one of these eight vegetables. Over the period under consideration, demand and expenditure elasticities remained fairly stable.
Effective Livelihood Strategies in Distressed Environments: The Case of Mudzi District of Zimbabwe
Mutami Cephas,Chazovachii Bernard
Current Research Journal of Social Science , 2012,
Abstract: This study looks at rural livelihoods in semi-arid and arid rural areas in post-2000 Zimbabwe. The decade-long socio-economic recession coupled with recurrent droughts presented a myriad of challenges to rural households in Zimbabwe. Taking Mudzi, a rural district in Zimbabwe, as a case study, the study explores the livelihood conditions and how households have managed to organize and cluster their assets to foster a living. Coping and adapting a cocktail of political, economic, climatic and social vulnerabilities in severely low economic potential communal areas of Zimbabwe requires elaborate skills in clustering, sequencing and reorientation skills in a broad range of activities. Using three basic livelihoods research methodologies namely retrospective, circumspective and prospective approaches, the research revealed that livelihood diversification in few effective strategies allows coping and even accumulation in distressed environments. Petty business, livestock rearing and networking are the core strategies being employed while crop farming and taking relief food are intermediate strategies. The study demonstrated that given appropriate rural development policy, households are capable of constructing their own robust sustainable livelihoods. Government policy constraints and inconsistencies in social and economic spheres and political violence are the greatest impediments to resilient livelihoods. There should be wide reforms on the political, economic and social sectors in the rural areas if poverty is to be reduced and household coping and adapting strategies are to be enhanced.
Demand for Fresh Vegetables in the United States: 1970–2010
Cephas Naanwaab,Osei Yeboah
Economics Research International , 2012, DOI: 10.1155/2012/942748
Abstract: This paper analyzes a demand system for eight major fresh vegetables in the USA using the most recently available dataset (1970–2010). A first-differenced Linear Approximate Almost Ideal Demand System (LA-AIDS) is applied to estimate price and expenditure elasticity of demand, imposing homogeneity and symmetry restrictions. We find that not only are consumers responsive to changes in own-prices but they also respond significantly to changes in prices of other fresh vegetables that are consumed together. Conditional budget share allocation to lettuce, cabbage, and celery has declined, while the share of the consumer dollar going to tomatoes, peppers, and onions has increased over the period. Except for cabbage, all own-price elasticity estimates are negative, less than unity in absolute value, and statistically significant. About half of the 56 cross-price elasticities are negative and significant, indicating high, albeit asymmetric, complementarities among these fresh vegetables. Expenditure elasticities are positive and significant for all but one of these eight vegetables. Over the period under consideration, demand and expenditure elasticities remained fairly stable. 1. Introduction The demand for fresh produce in the United States continues to increase yearly due, in large part, to consumer awareness about the linkages between diet and health. Per capita consumption of fresh vegetables increased roughly 12% between 1989 and 1999, compared to 9.9% for all fresh fruits and vegetables [1]. Rising incomes and the changing demographic makeup of the USA population has also contributed to increased demand for fresh produce. Studies have shown that consumption of fresh fruits and vegetables is positively correlated with incomes [2]. The demand for specialty and ethnic fresh fruits and vegetables is growing, spurred by increases in Hispanic and Asian populations, who tend to have more fresh-produce-based diets than the rest of the population. According to the USA Census Bureau [3], Hispanics and Asians combined now make up about 21% of the USA population, up from 16% in the year 2000. Estimates show that a typical Hispanic household spent about $408 on fresh produce in 1998, compared to $292 for a white household and $217 for an African American household [2]. A number of authors have estimated the demand elasticities for fresh vegetables in the United States. Notable among them are You et al. [4, 5] and Henneberry et al. [6]. You, Huang, and Epperson (hereafter YHE) used data on per capita annual consumption of eight fresh vegetables from 1960 to 1993 while
Comparative Analysis of Salivary Bacterial Microbiome Diversity in Edentulous Infants and Their Mothers or Primary Care Givers Using Pyrosequencing
Kimberly D. Cephas, Juhee Kim, Rose Ann Mathai, Kathleen A. Barry, Scot E. Dowd, Brandon S. Meline, Kelly S. Swanson
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0023503
Abstract: Bacterial contribution to oral disease has been studied in young children, but there is a lack of data addressing the developmental perspective in edentulous infants. Our primary objectives were to use pyrosequencing to phylogenetically characterize the salivary bacterial microbiome of edentulous infants and to make comparisons against their mothers. Saliva samples were collected from 5 edentulous infants (mean age = 4.6±1.2 mo old) and their mothers or primary care givers (mean age = 30.8±9.5 y old). Salivary DNA was extracted, used to generate DNA amplicons of the V4–V6 hypervariable region of the bacterial 16S rDNA gene, and subjected to 454-pyrosequencing. On average, over 80,000 sequences per sample were generated. High bacterial diversity was noted in the saliva of adults [1012 operational taxonomical units (OTU) at 3% divergence] and infants (578 OTU at 3% divergence). Firmicutes, Proteobacteria, Actinobacteria, and Fusobacteria were predominant bacterial phyla present in all samples. A total of 397 bacterial genera were present in our dataset. Of the 28 genera different (P<0.05) between infants and adults, 27 had a greater prevalence in adults. The exception was Streptococcus, which was the predominant genera in infant saliva (62.2% in infants vs. 20.4% in adults; P<0.05). Veillonella, Neisseria, Rothia, Haemophilus, Gemella, Granulicatella, Leptotrichia, and Fusobacterium were also predominant genera in infant samples, while Haemophilus, Neisseria, Veillonella, Fusobacterium, Oribacterium, Rothia, Treponema, and Actinomyces were predominant in adults. Our data demonstrate that although the adult saliva bacterial microbiome had a greater OTU count than infants, a rich bacterial community exists in the infant oral cavity prior to tooth eruption. Streptococcus, Veillonella, and Neisseria are the predominant bacterial genera present in infants. Further research is required to characterize the development of oral microbiota early in life and identify environmental factors that impact colonization and oral and gastrointestinal disease risk.
Medical Ultrasound Practice in Developing Countries: Example of Togo  [PDF]
Pihou Gbande, Kokou Adambounou, Lantam Sonhaye, Lama Kegdigoma Agoda-Koussema, Komlavi Adjenou
Open Journal of Radiology (OJRad) , 2018, DOI: 10.4236/ojrad.2018.84025
Abstract: Background: Ultrasound has become the most widely practiced medical imaging examination even in developing countries because of its non-irradiating, non-invasive nature and its relatively affordable cost. Objective: The objective of this study was to review the practice of medical ultrasound in Lomé city. We carried out a descriptive cross-sectional study using the pre-established fact sheets. It took place from 16 August to 30 November 2013 in the healthcare facilities of the city of Lomé. Results: A total of 47 centers were surveyed, including 14 public centers and 33 private centers. The ultrasound scanners were mostly acquired in the new state (59.6%) with only 34.1% of these ultrasound scanners equipped with the Doppler mode. There were 3 ultrasound scanners (6.4%) that had a 3D probe. Radiologists were the ones who carried out most of the ultrasound examinations in public centers, while in private they accounted for half of the performers (45.5%). Physicians enrolled in a specialty in radiology played a significant role in these private structures, accounting for 24.2% of performers. Cardiac ultrasound was performed only in 2 centers (4.2%). The ultrasound report was available in all public centers using the pre-established and standardized forms. The qualification of sonographers and the status of ultrasound scanners are relatively acceptable. Conclusion: Ultrasound scanners were mostly acquired in new condition. Radiologists remained the ones who carried out the largest number of ultrasound examination in Lomé.
Chest Computed Tomography of Elderly Subjects at University Hospital Campus Lomé  [PDF]
Pihou Gbande, Lantam Sonhaye, Massaga Dagbé, Dagouaba Ouoba, Lama Kegdigoma Agoda-Koussema, Komlanvi Victor Adjenou
Open Journal of Radiology (OJRad) , 2018, DOI: 10.4236/ojrad.2018.84027
Abstract: Background: Radiology in elderly as pediatric radiology poses a number of problems. The normal radiological appearance of the elderly patient’s chest is very varied and the changes are ubiquitous. Purpose: To describe the computed tomography profile of the elderly subject’s chest. Materials and Methods: Descriptive prospective study from January 1st to June 30th, 2018 carried out at the University Campus Hospital of Lomé. Results: We recorded 64 chest CT scans. The average age of the patients was 71.3. Internists (n = 21, 32.8%) and general practitioner (n = 16, 25%) were the major applicants for these tests. In most cases, thoracic CT examinations were requested as part of an extension assessment (n = 21, 32.8%), dyspnea and pneumonitis in 18.8% of cases each. All thoracic CT examinations were performed with contrast injection. CT with the TAP protocol was the most observed, accounted for more than half of the exams (56%). The main pathological lesions observed were diffuse parenchymal lesions (39.5%), pleurisy (11.1%) and PAH (11.1%). Conclusion: Computed tomography occupies an important place in the care of the elderly but the actors involved in their care must be trained to take optimal care.
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