OALib Journal期刊

ISSN: 2333-9721




2019 ( 4 )

2018 ( 14 )

2017 ( 12 )

2016 ( 22 )


匹配条件: “ Olivier Ejiba Nyongonyi” ,找到相关结果约5316条。
Adolescent Pregnancy and Delivery in the Rural Areas of DR. Congo: A Cross-Sectional Descriptive Study (2014 to 2016)  [PDF]
Bukasa Héman Kabemba, Yuma Gaston Alimasi, Augustin Mpo Ntambwe, Morega Esaie Kalamba, Failla Fanny Kitenge, Olivier Ejiba Nyongonyi, Huguette Kisimba Monzi
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104762
Background: Adolescent pregnancy and childbirth remains a major public health problem that deserves special attention with regard to psychological and medical risks. Objective: The objective of this study was to determine the fre-quency and determinants of the course and evolution of pregnancy and child-birth in rural adolescents. Methods: This is a multicentre, retrospective and de-scriptive cross-sectional study carried out in the maternity wards of the Katombe Health Centre and the General Reference Hospital of Moba. The pe-riod from 2014 to 2016 was retained. The data were analysed using Epi Info 7.1 software program. Results: Teenage deliveries accounted for 13.2%. The age mean of the adolescent was 17.3 ± 1.3 years, married (69.2%), housewife (72.7%), most of whom had at least one prenatal visits, primiparous (71.3%) and the highest level of study is secondary (72.3%). In the majority of cases, deliveries were dystocia (51.2%) and by the lower ways (90.8%). Maternal and neonatal mortality rates were respectively 1.7% and 3.4%. The age of the ado-lescent determines the mode of delivery (p 0.000), the delivery pathways (p 0.040) and the postpartum trend (p 0.000). The adolescent under seventeen is significantly (p 0.0006) at high risk. Age, parity, marital status, level of educa-tion, occupation of the author of the pregnancy, antenatal consultations visits follow-up, and new-born delivery modes determine the postpartum mother’s evolution. Similarly, neonatal outcome is determined by maternal age, marital status, level of education, occupation of the perpetrator, prenatal follow-up, maternal modes and ways of deliveries. Conclusion: Pregnancy is a high risk for adolescent girls in rural areas. In addition to this risk, the organizational dif-ficulties of less well-equipped health structures are compounded. The modifia-ble determinants that influence the occurrence of this risk should be considered. The age of fewer than seventeen seems to be the most critical in terms of seriousness in rural areas.
Knowledge and Rates of Use of Preschool Consultation by the Mothers in the Area of Health Tshitenge/Democratic Republic of Congo  [PDF]
Jean Christophe Bukasa Tshilonda, Augustin Kadiata Bukasa, Zelda Nkongolo Kitenge, Isaac Kalenda Ilunga, Cedrick Ilunga Bimpa, Jean Pierre Kufua Katukumbanyi, Dominique Kapitena Mangola, Astrid Kabanga, Benedicte Bileo, Axel Ngoyi, Therese Kapenga Mitanta, Olivier Ejiba Nyongonyi, Paulin Kabamba Lupueka, Alain Ngoyi Kibambe, Jean Felix Kabangu, Geremie Kazadi, Alexis Ntambwe Mayombo, Andre Kazadi Mukendi
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105064
Introduction: The postponement of the preventive activities of the Provincial Division of Health of East Kasai 2016 revealed que le level of attendance of the preschool consultation is decreasing less and less in the Health Area Tshitenge. Thus, this study set the goal of determining the knowledge and use of maternal pre-school counseling in the Health Area Tshitenge. Methods: The survey method was used by means of a questionnary administered to mothers in this region, but more specifically, we collected data from 422 mothers responsible for randomly selected children aged 0 to 5 in the four health. Results: After analysis and analysis of the data with the computer tool, we obtained the following results: the rate of use of the preschool consultation service is 60.7%; the level of education, occupation and the number of children under 5 years of age have a strong influence on the use of preschool counseling; lack of knowledge about the most important activity of preschool counseling has a negative influence on its use. There is a link between the use of the preschool consultation and the most important activity of the preschool consultation for the respondent; there is also a link between this and an appointment on the map; and finally, the cost judgment of SPC strongly influences its use. Conclusion: In order to raise this activity, the revitalization of preschool consultation activities in the Tshitenge health area, the reinforcement of the parents’ awareness on the use of preschool counseling from 0 to 59 months, and the revival of visits to homes for children whose mothers drop out of preschool counseling sufficient are a basis.
And If Bell’s Inequality Were Not Violated  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.514137

It briefly recalls the theory of Bell’s inequality and some experimental measures. Then measurements are processed on one hand according to a property of the wave function, on the other hand according to the sum definition. The results of such processed measures are apparently not the same, so Bell’s inequality would not be violated. It is a use of the wave function which implies the violation of the inequality, as it can be seen on the last flowcharts.

Thermodynamics and Irreversibility: From Some Paradoxes to the Efficiency of Effective Engines  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.516159
Abstract: The traditional thermodynamic theory explains the reversible phenomena quite well, except that reversible phenomena are rare or even impossible in practice. Here the purpose is to propose an explanation valid for reversible and also irreversible phenomena, irreversibility being common or realistic. It previously exposed points tricky to grasp, as the sign of the work exchange, the adiabatic expansion in vacuum (free expansion) or the transfer of heat between two bodies at the same temperature (isothermal transfer). After having slightly modified the concepts of heat transfer (each body produces heat according to its own temperature) and work (distinguishing external pressure from internal pressure), the previous points are more easily explained. At last, an engine efficiency in case of irreversible transfer is proposed. This paper is focused on the form of thermodynamics, on “explanations”; it does not question on “results” (except the irreversible free expansion of 1845...) which remain unchanged.
How to Demonstrate the Lorentz Factor: Variable Time v.s. Variable Inertial Mass  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.63030
Abstract: For a century, hypothesis of a variable time is laid down by the Relativity Theory. This hypothesis can explain many Nature observations, experiments and formulas, for example the Lorentz factor demonstration. Because of such good explanations, the hypothesis of a variable time has been validated. Nevertheless, it remains some paradoxes and some predictions which are difficult to measure, as a reversible time or the time variation itself. The purpose of this article is to study another hypothesis. If it gives interesting results, it would mean that this alternative hypothesis can also be validated. The idea in this paper is to replace the variable time by a variable inertial mass. To the difference with the Theory of Relativity (where the inertial mass and the gravitational mass are equal and variable), the gravitational mass is here supposed to be constant. So, starting from the definition of the kinetic energy, it is introduced the Lorentz factor. And then it is demonstrated the value of the Lorentz factor thanks to a variable inertial mass. This variable inertial mass can also explain experiments, like Bertozzi experiment. If this alternative demonstration was validated, it could help to open doors, other physical effects could be explained like the addition of velocities.
Velocity Addition Demonstrated from the Conservation of Linear Momenta, an Alternative Expression  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.66077
Abstract: Is it possible to demonstrate the velocity addition without using a variable time (as it is done in theory of relativity)? The topic of this paper is to propose and demonstrate an alternative expres-sion based on the conservation of linear momenta. The method proposed here is to start from a physical object (and not from a mathematical point), i.e. from an object with a mass. And the hy-pothesis is inertial mass to be different from gravitational mass. Then, when impulses are added, we get an expression of the velocity addition itself. When numerical predictions are compared with experimental results, the differences are lower than the measures uncertainty. And these numerical results are much close to those predicts by the theory of relativity, nevertheless with a little difference at high velocities. If this demonstration and this expression were validated, it would allow giving an alternative explanation to some experiments and nature observations as Doppler Effect on light celerity. But first, it would be necessary to get from laboratories more precise experimental results, in order to validate or not this hypothesis of the sum of linear momenta with a Variable Inertial Mass.
A Chart of Conversion Supporting EPR Paradox vs. Bell’s Inequalities Violation  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.613201
Abstract: Quantum Mechanics formalism remains difficult to understand and sometimes is confusing, especially in the explanation of ERP paradox and of Bell’s inequalities with entanglement photons. So a chart of conversion, in which elements are named differently, is proposed. Next, experiment about Bell’s inequalities violation is described in another way, and we hope a clearer one. Main result is Bell’s inequalities would not be violated! The explanation would come from confusion between the definition of the correlation function S1, and a property S2. And consequently, Einstein, Podolski and Rosen would be right on the local “hidden” variable.
An Alternative Demonstration of the Carnot Efficiency “Without” Using the Entropy Function  [PDF]
Olivier Serret
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.72020
Abstract: Entropy function is used to demonstrate the Carnot efficiency, even if it is not always easy to understand its bases: the reversible movement or the reversible heat transfer. Here, it is proposed to demonstrate the Carnot efficiency “without” using the Entropy function. For this, it is necessary to enhance two concepts: heat transfer based on the source temperature and work transfer based on external pressure. This is achieved through 1) a balance exchanged heat, based on the source temperature and the system temperature, and 2) a balance exchanged work, based on the external pressure and the internal pressure. With these enhanced concepts, Laplace function \"\" and Carnot efficiency \"\" can be demonstrated without using the Entropy function (S). This is only a new formalism. Usual thermodynamics results are not changed. This new formalism can help to get a better description of realistic phenomena, like the efficiency of a realistic cycle.
Super-Diffusive Noise Source in Asset Dynamics  [PDF]
Max-Olivier Hongler
Journal of Mathematical Finance (JMF) , 2013, DOI: 10.4236/jmf.2013.31004

Given an asset with value St, we revisit the Black and Scholes dynamics \"\" when the driving noise ξt is a non-Gaussian super-diffusive stochastic process with variance of the type \"\". This super-diffusive quadratic variance behavior, synthesizes a ballistic component which would occur in strongly fluctuating environments. When \"\", the assets can, with high probability, be driven towards the bankruptcy . This extra dynamic feature significantly affects the management of an optimal portfolio. In this context, we focus on basic decisions like: 1) determine the optimal level to sell the asset; 2) determine how to balance a portfolio which incorporates such a high volatility asset; and 3) when facing incertitudes on the assets growth rate μ, construct an optimal adaptive portfolio control. In all mentioned cases and despite the presence of this highly non-Gaussian noise source, we are able to deliver simple exact and fully explicit optimal control rules.


The Analysis of an HIV and AIDS Empowering Group Work Programme for Adolescents: A Quantitative Evaluation  [PDF]
K. Olivier, H. Strydom
World Journal of AIDS (WJA) , 2013, DOI: 10.4236/wja.2013.31008

In this article an HIV and AIDS group work programme empowering adolescents to deal with the possible death of their parents/caregivers will be evaluated in a quantitative fashion. The data were obtained by means of the Child Functioning Inventory High School (CFI-HIGH) developed by Perspective Training College and the Generalized Contentment Scale (GCS) of Hudson (Bloom et al., 1999: 220). The guidelines for selection and inclusion of respondents in the comparison and experimental groups will be discussed, followed by information on the measuring instruments. The article will conclude with conclusions and recommendations.


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