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OALib Journal期刊

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Seroprevalence of Hepatitis B among Blood Donors in Mbuji-Mayi, “Case of Dipumba General Hospital” (DRC)  [PDF]
Ciamala Mukendi Paul, Kanyiki Katala Moise, Banza Ndala Deca Blood, Ntumba Mukendi Kennedy, Jean Mukendi Mukendi Réne, Kolela Kolela Alain, Kaya Tompa Brigitte, Gabriel Mbuyi Lubemba, Bukasa Lumbayi Laurent, Kabamba Nzaji Michel
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103503
Abstract:
Seroprevalence among blood donors is a major public health problem, both in developed and developing countries, in its magnitude. The aim of this study was to determine the seroprevalence of hepatitis B in blood donors. This is a descriptive study carried out in the city of Mbuji-Mayi at the General Hospital of Dipumba in blood donors (family, volunteer and remunerated) recorded from 01/to31/December 2016; the data were collected in a transverse fashion. The following observations were made: During the study period, 1584 blood donors were registered. After analyzing the data, the seroprevalence of hepatitis B in blood donors was 2.2%, 77.8% were male (sex ratio M/F 3.5 and voluntary donors were 50.4%.
Risk Factors of Low Birth Weight in Mbujimayi City, Democratic Republic of Congo  [PDF]
Kanyiki Katala Moise, Banza Ndala Deca Blood, Mukendi Mukendi Jean René, Ciamala Mukendi Paul, Mukendi Ntumba Kennedy, Kaya Tompa Brigitte, Ilunga Bimpa Cedric, Kolela Kolela Alain, Mulewu Ngandu Hypolitte, Kabamba Nzaji Michel
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103501
Abstract:
The objective of this study was to identify and explain the factors influencing the birth of underweight children in the city of Mbuji-Mayi. Methods: This is not a paired case-control study of births registered from 1 to June 30, 2015 in maternity hospitals in three health zones selected for this study, cases are all children born with low weight and witnesses are all children born with a normal weight is 2500 g and more. The significance level was set at p < 0.05. Results: The proportion of LBW was 14.5%. The risk factors identified in this study are: Unmarried women [ORa = 2.92 (1.41 to 5.61)], not Luba Tribal origin [ORa = 1.71 (1.02 to 2.872)], anemia of pregnancy [ORa = 2.92 (1.79 to 4.75)], the non-attendance of the CPN [ORa = 1.92 (1.16 to 3.17)], preterm labor [ORa = 3, 11 (1.79 to 5.41)], diabetic mothers [ORa = 3.44 (1.91 to 6.21)], the history of malaria [ORa = 2 (1.23 to 3.26) ], multiparity [ORa = 2 (1.23 to 3.26)] and threatened abortion histories [ORa = 6.17 (2.82 to 13.52)] had statistical significantly associated with links é FPN.
Frequency and Causes of Vaginal Hemorrhage outside Pregnancy in Women of Reproductive Age at Bonzola Hospital, Mbuji-Mayi, DRC  [PDF]
Kaya Tompa Brigitte, Ciamala Mukendi Paul, Nzembu Kabwasa Peter, Kanyiki Katala Moses, Ntumba Mukendi Kennedy, Jean Mukendi Mukendi Rene, Kolela Kolela Alain, Ilunga Bimpa Cedric, Cibangu Muana Wamuenyi Franck, Kaseka Ciswaka Jeanne, Amuli Jiwe Jean-Pierre
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104940
Abstract:
Vaginal haemorrhages outside pregnancy in women of childbearing age are a major public health problem in both developed and developing countries. The purpose of this study was to determine the frequency and causes of vaginal haemorrhage outside pregnancy. This is a descriptive study conducted in the city of Mbuji-Mayi at Bonzola General Hospital, registered from 01 to 31 December 2017; the data were collected transversally. The following observations were made during the study period; 174 women of childbearing age were registered. After analyzing the data, the incidence of vaginal haemorrhage in women of childbearing age was 15.8% and the main causes were: cervical cancer: 32.7% and uterine myoma 22.5%.
Design of a Performance Measurement Framework for Cloud Computing  [PDF]
Luis Bautista, Alain Abran, Alain April
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.52011
Abstract: Cloud Computing is an emerging technology for processing and storing very large amounts of data. Sometimes anomalies and defects affect part of the cloud infrastructure, resulting in a performance degradation of the cloud. This paper proposes a performance measurement framework for Cloud Computing systems, which integrates software quality concepts from ISO 25010.
Software Engineering Principles: Do They Meet Engineering Criteria?  [PDF]
Kenza Meridji, Alain Abran
Journal of Software Engineering and Applications (JSEA) , 2010, DOI: 10.4236/jsea.2010.310114
Abstract: As a discipline, software engineering is not as mature as other engineering disciplines, and it still lacks consensus on a well-recognized set of fundamental principles. A 2006 analysis surveyed and analyzed 308 separate proposals for principles of software engineering, of which only thirty-four met the criteria to be recognized as such. This paper reports on a further analysis of these thirty-four candidate principles using two sets of engineering criteria derived from: A) the engineering categories of knowledge defined by Vincenti in his analysis of engineering foundations; and B) the joint IEEE and ACM software engineering curriculum. The outcome of this analysis is a proposed set of nine software engineering principles that conform to engineering criteria.
Extending Extreme Programming User Stories to Meet ISO 9001 Formality Requirements  [PDF]
Malik Qasaimeh, Alain Abran
Journal of Software Engineering and Applications (JSEA) , 2011, DOI: 10.4236/jsea.2011.411074
Abstract: For software organizations needing ISO 9001 certification, including those that have adopted agile methodologies, it is important that their software life cycle processes be able to manage the requirements imposed by this certification standard. However, the user stories in the XP agile methodology do not provide auditors with enough evidence that certain steps and activities have been performed in compliance with ISO 9001. This paper proposes an extension to the user story, based on four sub processes related to the CMMI-DEV model: 1) identification of the source of the user story; 2) categorization of the non functional requirements; 3) identification of the user story relationships; and 4) prioritization of the user stories. These sub processes are aligned with the XP release planning phase, and enhance the ability of user stories to accumulate the information that is mandatory for achieving ISO 9001 certification.
Multiperspective Representation of Internal Controls in Business Processes  [PDF]
Iheb Abdellatif, Alain April
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.512112
Abstract:

The internal control process, which is designed to help an organization accomplish specific control objectives, is one of the most important processes, as it can determine whether or not the organization is in compliance with its internal or external requirements. Internal controls emerge from different perspectives. Currently, experts view and act on one control perspective at a time, which creates inefficiencies and duplication. This software engineering research is aimed at proposing a multiperspective framework for representing internal controls, in order to obtain a centralized and comprehensive view of all internal control mechanisms. To carry out this research, we also needed to represent the many different stakeholder perspectives of internal controls. Based on a literature review of mathematical and psychological analysis, we searched for the most suitable multiperspective representation of internal controls, and assessed the many representation options using the AHP (analytical hierarchical process) sensitivity analysis approach. This approach has been applied to a study group which has been called to answer to a questionnaire.

Secured Transmission of ECG Signals: Numerical and Electronic Simulations  [PDF]
Gutenbert Kenfack, Alain Tiedeu
Journal of Signal and Information Processing (JSIP) , 2013, DOI: 10.4236/jsip.2013.42023
Abstract:

In many domains of science and technology, as the need for secured transmission of information has grown over the years, a variety of methods have been studied and devised to achieve this goal. In this paper, we present an information securing method using chaos encryption. Our proposal uses only one chaotic oscillator both for signal encryption and decryption for avoiding the delicate synchronisation step. We carried out numerical and electronic simulations of the proposed circuit using electrocardiographic signals as input. Results obtained from both simulations were compared and exhibited a good agreement proving the suitability of our system for signal encryption and decryption.

Chaos-Based Encryption of ECG Signals: Experimental Results  [PDF]
Gutenbert Kenfack, Alain Tiedeu
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.76039
Abstract: In this work, we suggest a system for chaos-based encryption of electrocardiographic signals. It uses simple electronics organized around a colpitts chaotic oscillator. The system has been designed, implemented and tested. The encrypted signal has been decrypted and compared to the original ECG signal. Experimental results were analysed and proved encouraging.
Interest Rate Volatility: A Consol Rate Approach  [PDF]
Vincent Brousseau, Alain Durré
Journal of Mathematical Finance (JMF) , 2015, DOI: 10.4236/jmf.2015.51006
Abstract: In this paper, we propose a new methodology to estimate the volatility of interest rates in the euro area money market. In particular, our approach aims at avoiding the limitations of market implied volatilities, i.e. the dependency on arbitrary choices in terms of maturity and frequencies and/or of other factors like credit and liquidity risks. The measure is constructed as the implied instantaneous volatility of a consol bond that would be priced on the EONIA swap curve over the sample period from 4 January 1999 to 21 November 2013. Our findings show that this measure tracks well the historical volatility since, by dividing the consol excess returns by our volatility measure. This removes nearly entirely excess of kurtosis and volatility clustering, bringing the excess returns close to an ordinary Gaussian white noise.
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