Research Topics
| Nicolas BacaerSummaryCountry: France Publications
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Detail Information
Publications
Fuelwood harvesting in Niger and a generalization of Faustmann's formulaNicolas Bacaer
Institut de Recherche pour le Developpement, 32, Avenue Henri Varagnat, 93143 Bondy Cedex, France
C R Biol 328:379-85. 2005..Faustmann's classical formula for even-aged stands corresponds to the limit alpha --> 0 and D = 0 (clear-cut)...- A reaction-diffusion system modeling the spread of resistance to an antimalarial drugNicolas Bacaer
Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143 Bondy Cedex, France
Math Biosci Eng 2:227-38. 2005.... 
On the final size of epidemics with seasonalityNicolas Bacaer
IRD Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143, Bondy, France
Bull Math Biol 71:1954-66. 2009....- Periodic matrix population models: growth rate, basic reproduction number, and entropyNicolas Bacaer
IRD Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143 Bondy, France
Bull Math Biol 71:1781-92. 2009..Finally, we add some remarks on Demetrius' notion of evolutionary entropy H and its relationship to the growth rate lambda in the periodic case... - Resonance of the epidemic threshold in a periodic environmentNicolas Bacaer
Institut de Recherche pour le Developpement, UR 079, 93143, Bondy, France
J Math Biol 57:649-73. 2008..g., between a periodic SEIR model with an exponentially distributed latency and the same model but with a fixed latency... - Modeling the joint epidemics of TB and HIV in a South African townshipNicolas Bacaer
Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143 Bondy, France
J Math Biol 57:557-93. 2008..The impact of antiretroviral therapy on the incidence of HIV is unclear and depends on the extent to which it reduces sexual transmission. However, our analysis suggests that it will greatly reduce the TB notification rate... - On the basic reproduction number R0 in sexual activity models for HIV/AIDS epidemics: example from Yunnan, ChinaNicolas Bacaer
Institut de Recherche pour le Développement I R D, 32 avenue Henri Varagnat, 93143 Bondy Cedex, France
Math Biosci Eng 4:595-607. 2007..As an example, we consider data concerning sex workers and their clients in Yunnan, China, and find an upper bound for the geometric mean of the transmission probabilities per partnership in this context... - Growth rate and basic reproduction number for population models with a simple periodic factorNicolas Bacaer
Institut de recherche pour le developpement IRD, 32 avenue Henri Varagnat, 93143, Bondy, France
Math Biosci 210:647-58. 2007..Biosci. 145 (1997) 77]. We show that apart from a few exceptional parameter values, the epidemic threshold depends not only on the mean contact rate, but also on the amplitude of fluctuations... - Approximation of the basic reproduction number R0 for vector-borne diseases with a periodic vector populationNicolas Bacaer
Institut de recherche pour le developpement IRD, 32 avenue Henri Varagnat, 93143 Bondy Cedex, France
Bull Math Biol 69:1067-91. 2007..The approximate formula and the numerical methods can be used for many other epidemic models with seasonality... - The epidemic threshold of vector-borne diseases with seasonality: the case of cutaneous leishmaniasis in Chichaoua, MoroccoNicolas Bacaer
IRD, 32 avenue Henri Varagnat, Bondy 93143, France
J Math Biol 53:421-36. 2006..This R (0) is estimated numerically for the epidemic in Chichaoua; approximately 1.94. The model suggests that the epidemic could be stopped if the vector population were reduced by a factor approximately 3.76... - Modeling the HIV/AIDS epidemic among injecting drug users and sex workers in Kunming, ChinaNicolas Bacaer
Institut de Recherche pour le Developpement, Bondy, France
Bull Math Biol 68:525-50. 2006..The critical levels of condom use and clean needle use necessary to stop both the sexual transmission and the transmission among IDUs can therefore be determined independently... - An age-structured model for the potential impact of generalized access to antiretrovirals on the South African HIV epidemicNicolas Bacaer
IRD Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143 Bondy, France
Bull Math Biol 72:2180-98. 2010..This raises some concern about an assumption presently used in EPP/Spectrum, the software used by UNAIDS for its estimates... - Genealogy with seasonality, the basic reproduction number, and the influenza pandemicNicolas Bacaer
Research group UMMISCO, IRD Institut de Recherche pour le Developpement, 32 avenue Henri Varagnat, 93143 Bondy, France
J Math Biol 62:741-62. 2011..This difference has been overlooked in recent studies of the H1N1 influenza pandemic... - On the biological interpretation of a definition for the parameter R₀ in periodic population modelsNicolas Bacaer
Institut de recherche pour le developpement IRD, UMI 209, Bondy, France
J Math Biol 65:601-21. 2012..In epidemiology, it is the asymptotic ratio of total infections in two successive generations of the infection tree. This result is compared with other recent work... - The model of Kermack and McKendrick for the plague epidemic in Bombay and the type reproduction number with seasonalityNicolas Bacaer
IRD Institut de Recherche pour le Developpement, Research group UMMISCO, 32 avenue Henri Varagnat, 93143, Bondy, France
J Math Biol 64:403-22. 2012..We present a seasonal model for the plague in Bombay and compute the type reproduction numbers associated with rats and fleas, thereby extending to periodic models the notion introduced by Roberts and Heesterbeek...