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Search Results: 1 - 10 of 41847 matches for " Pierre Z. Akilimali "
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Prognostic Signification of Admission Hyperglycemia among Acute Stroke Patients in Intensive Care Units in Kinshasa, the Democratic Republic of the Congo  [PDF]
Josée K. Tshituta, Fran?ois B. Lepira, Fran?ois P. Kajingulu, Jean Robert R. Makulo, Ernest K. Sumaili, Pierre Z. Akilimali, Aliocha N. Nkodila, Freddy M. Mbuyi, Angèle I. Masewu, Stéphane Mutombo, Eric B. Amisi, Jean Pierre M. Ilunga, Wilfrid B. Mbombo, Patrick M. Mukuna, Adolphe M. Kilembe
World Journal of Cardiovascular Diseases (WJCD) , 2019, DOI: 10.4236/wjcd.2019.99060
Abstract:
BACKGROUND AND AIM: Although admission hyperglycemia has been reported to be associated with unfavorable outcomes in acute stroke, little is known about this association in sub-Saharan Africa. Therefore, the aim of the present study was to assess the prognostic significance of admission hyperglycemia in the acute phase of stroke in Congolese patients. METHODS: In a multicenter prospective cohort study, consecutive patients with acute stroke were examined in 5 Emergency Rooms or Intensive Care Units of Kinshasa between July 15th, 2017 and March 15th, 2018. The severity of stroke was assessed at admission using the Glasgow Coma Scale. Stress hyperglycemia was defined as random blood glucose levels at admission > 140 mg/dL in patients without known type 2 diabetes mellitus (T2DM). The endpoint was 10-day all-cause in-hospital mortality. Survival (time-to-death) curves were built using the Kaplan Meier methods. Cox proportional analysis was used to identify predictors of 10-day all-cause in-hospital mortality. The predictive performance of blood glucose level
Financial Inclusion and Economic Growth in WAEMU: A Multiscale Heterogeneity Panel Causality Approach  [PDF]
Grakolet Arnold Z. Gourène, Pierre Mendy
Theoretical Economics Letters (TEL) , 2019, DOI: 10.4236/tel.2019.93033
Abstract: This paper examines the causal relationship between Financial Inclusion and economic growth in the West African Economic and Monetary Union (WAEMU) from 2006 to 2015. We combined the heterogeneity panel causality test proposed by [1] with the Maximal Overlap Discrete Wavelet Transform (MODWT) to analyze the bi-directional causality at different time scales. We used two Financial Inclusion indicators: the overall rate of demographic penetration of financial services (Financial Inclusion supply) and the overall rate of use of financial services (Financial Inclusion demand). Our results show that at scale 1 (2 - 4 years), there is no causality between economic growth and Financial Inclusion indicators. However, at scale 2 (4 - 8 years), we found a bi-directional causality between economic growth and Financial Inclusion. Policymakers should therefore promote reforms that are beneficial to financial inclusion, especially on the supply side, while making the levers for macroeconomic growth more efficient, which also seems to be a decisive factor in financial inclusion.
Hepatitis B, Hepatitis C and HIV in Pregnant Women in the Community in the Democratic Republic of Congo  [PDF]
Jeff Maotela Kabinda, Tony Shindano Akilimali, Ahuka Serge Miyanga, Philippe Donnen, Dramaix-Wilmet Michèle
World Journal of AIDS (WJA) , 2015, DOI: 10.4236/wja.2015.52015
Abstract: Objectives: To determine the prevalence of HBV, HCV and HIV in pregnant women and identify risk factors. Materials and Methods: Descriptive and analytical study on pregnant women in the community Maniema (DRC) between 24 June and 24 July 2013. We enrolled a total of 581 pregnant women. Results: Prevalence among pregnant women was 4.1% (2.5% to 6.3%) for HIV, 5.9% (3.9% to 8.4%) for the HBsAg and 4.1% (2.5% to 6.4%) for hepatitis C. The risk factor was for HIV, blood transfusion history in women. For HBsAg the main risk factor was the tattoo history and no statistically significant factor was found for hepatitis C. Conclusion: To reduce the risk of transmission of hepatitis from mother to child, all pregnant women should be screened prenatally. A strengthening of routine screening of blood products must be done and a health education of the population on the mode of contamination should be conducted.
Hepatitis B, Hepatitis C and HIV among Children 6 to 59 Months in the Community in the Democratic Republic of Congo  [PDF]
Jeff Maotela Kabinda, Tony Shindano Akilimali, Ahuka Serge Miyanga, Philippe Donnen, Dramaix-Wilmet Michèle
Open Journal of Pediatrics (OJPed) , 2015, DOI: 10.4236/ojped.2015.52026
Abstract: Objectives: To determine the prevalence of HBV, HCV and HIV among children 6 to 59 months and determine the risk factors. Materials and Methods: Descriptive and analytical study on children aged 6 to 59 months of community Maniema (DRC) conducted between 24 June and 24 July 2013. We enrolled 781 children aged 6 to 59 months. For association between the presence of viral markers and potential risk factors the chi-square test of Pearson was applied, the odds ratios (OR) and their 95% confidence intervals (95% CIs) were calculated. The Fisher exact test was used when the conditions for application of the chi-square test of Pearson were not met. Results: The median age of the children was 34 months, 51% of female children. Ten percent of children had a history of blood transfusion; 6.6% and 64% had fever and anemia. The prevalence of HBsAg was 3.6%, the prevalence of antibodies against hepatitis C was 2.8% and HIV was 3.7%. The risk factors were HBsAg, male gender (5.5% male vs 2.0 % female; OR = 2.8(1.3 - 6.9) p = 0.001) and urban areas (5.0% rural vs 0.5% urban, OR = 0.1 (0.01 - 0.72), p = 0.01). For HCV and HIV, these factors were the history of blood transfusion in the child and the mother. For HCV 7.6% of children with blood transfusion history; OR = 3.2 (1.1 - 8.5); p = 0.05 and 11.1% history’s mother blood transfusion, OR = 5.6 (2.1 - 14.1). For HIV 11.4% of children with blood transfusion history, OR = 3.8, p = 0.005 and 9.8% history’s mother blood transfusion, OR = 2.9, p = 0.04. Conclusion: Vaccination against hepatitis B in children must be widespread, educational messages to the population must target the risk factors for these viruses. A screening of hepatitis in pregnant women must be coupled with rigorous selection policy for blood donors before each donation and qualification of any unit of blood.
Fault-Plane Solution of the Earthquake of 19 March 2005 in Monatele (Cameroon)  [PDF]
Eric N. Ndikum, Charles T. Tabod, Alain-Pierre K. Tokam, Bernard Z. Essimbi
Open Journal of Geology (OJG) , 2014, DOI: 10.4236/ojg.2014.46021
Abstract:

An earthquake of magnitude Ml = 3.04 was detected on the 19 of March 2005 at 11:49:18.31 (local time) by seven broadband seismometers located around Cameroon (Central Africa). Its epicenter has been relocated and found to be in Monatele (Cameroon) with latitude 4°26.34' and longitude 10°59.62'. The fault-plane solution calculated using double couple fault-plane solutions based on P-wave polarity readings, also taking into consideration the dextral nature of the Sanaga Fault (SF) underlying this region of the epicenter, is a strike-slip fault with a normal faulting component. The beach ball representation of this fault-plane solution has strike, dip and rake values of 289, 70, -169 for the principal fault plane and 195, 80, -20 for the auxiliary fault plane.

Development of Time Sensitivity and Information Processing Speed
Sylvie Droit-Volet, Pierre S. Zélanti
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0071424
Abstract: The aim of this study was to examine whether age-related changes in the speed of information processing are the best predictors of the increase in sensitivity to time throughout childhood. Children aged 5 and 8 years old, as well adults, were given two temporal bisection tasks, one with short (0.5/1-s) and the other with longer (4/8-s) anchor durations. In addition, the participants' scores on different neuropsychological tests assessing both information processing speed and other dimensions of cognitive control (short-term memory, working memory, selective attention) were calculated. The results showed that the best predictor of individual variances in sensitivity to time was information processing speed, although working memory also accounted for some of the individual differences in time sensitivity, albeit to a lesser extent. In sum, the faster the information processing speed of the participants, the higher their sensitivity to time was. These results are discussed in the light of the idea that the development of temporal capacities has its roots in the maturation of the dynamic functioning of the brain.
Quantum Expander Codes
Anthony Leverrier,Jean-Pierre Tillich,Gilles Zémor
Mathematics , 2015,
Abstract: We present an efficient decoding algorithm for constant rate quantum hypergraph-product LDPC codes which provably corrects adversarial errors of weight $\Omega(\sqrt{n})$ for codes of length $n$. The algorithm runs in time linear in the number of qubits, which makes its performance the strongest to date for linear-time decoding of quantum codes. The algorithm relies on expanding properties, not of the quantum code's factor graph directly, but of the factor graph of the original classical code it is constructed from.
Bending Fuchsian representations of fundamental groups of cusped surfaces in PU(2,1)
Pierre Will
Mathematics , 2011,
Abstract: We describe a family of representations of $\pi_1(\Sigma)$ in PU(2,1), where $\Sigma$ is a hyperbolic Riemann surface with at least one deleted point. This family is obtained by a bending process associated to an ideal triangulation of $\Sigma$. We give an explicit description of this family by describing a coordinates system in the spirit of shear coordinates on the Teichm\"uller space. We identify within this family new examples of discrete, faithful and type-preserving representations of $\pi_1(\Sigma)$. In turn, we obtain a 1-parameter family of embeddings of the Teichm\"uller space of $\Sigma$ in the PU(2,1)-representation variety of $\pi_1(\Sigma)$. These results generalise to arbitrary $\Sigma$ the results obtained in a previous paper for the 1-punctured torus.
Two Generator groups acting on the complex hyperbolic plane
Pierre Will
Mathematics , 2015,
Abstract: This is an expository article about groups generated by two isometries of the complex hyperbolic plane.
How to Introduce the Cyclic Group and Its Properties Representation with Matlab ? Thanks to Magic Using the Perfect Faro Shuffle  [PDF]
Pierre Schott
Creative Education (CE) , 2011, DOI: 10.4236/ce.2011.21005
Abstract: Why use Magic for teaching arithmetic and geometric suit, additive groups, and algorithmic notions through Matlab? Magicians know that, once the surprise has worn off, the audience will seek to understand how the trick works. The aim of every teacher is to interest their students, and a magic trick will lead them to ask how? And why? And how can I create one myself? In this article we consider a project I presented in 2009. I summarize the project scope, the students' theoretical studies, their approach to this problem and their computer realizations. I conclude using the mathematical complement as well as weak and strong points of this approach. Whatever the student's professional ambitions, they will be able to see the impact that originality and creativity have when combined with an interest in one's work. The students know how to “perform” a magic trick for their family and friends, a trick that they will be able to explain and so enjoy a certain amount of success. Sharing a mathematical / informatics demonstration is not easy and that they do so means that they will have worked on understood and are capable of explaining this knowledge. Isn't this the aim of all teaching?
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