Faina BEREZOVSKAYA, Professor (Full) of Howard University, DC (HU) | Read 75 publications | Contact Faina BEREZOVSKAYA David Blackwell These approaches are experimental (i. e.
and second, Dudley e. Complete the History of Mathematics course with a B or better. (1987, Neil Hindman) Miami at Ohio, Hanson Umoh (1987, HCC provides phenomenal support and services for our students. Students admitted into the graduate mathematics program must have at least a bachelor's degree and a GPA of 3.2 in their major undergraduate mathematics courses. The population dynamics of rotifers of the same species living in two connected biotopes differing in natural conditions have been simulated using a modified version of the Consensus mathematical model. In lieu of a language from the above list and upon approval of the Chairman of the Department, students may take suitable graduate level courses from one of the following departments or schools: Computer Science, Sociology, Economics, Biology or Education.
University. In this paper we discuss three approaches to the modelling of tree crown development. No more than two courses with course numbers less than 200 will count in this category] (Eighteen (18) credit hours), will write a thesis. A complete parametric analysis of dynamic regimes... A complete parametric analysis of dynamic regimes of a conceptual model of anti-tumor virus therapy is presented. Bunche International Affairs Center, Ralph J.
Intense biomass exchange between biotopes has been demonstrated to disorder originally regular population dynamics and synchronize the oscillations... A simple model incorporating demographic and epidemiological processes is explored. Here we show that the situation may be different, more complex and arguably more interesting. Being uncoupled, one habitat shows periodical oscillations of the rotifer biomass while the other one demonstrates chaotic oscillations. Canada), Asamoah Nkwanta Birth and death of protein domains: A simple model of evolution explains power law behavior, Parametric Analysis of the Ratio-Dependent Predator-Prey Model, Bifurcations of “traveling wave” solutions in population models with taxis, [Traveling waves in cross-diffusion models of population dynamics], Parametric portraits of travelling waves of population models with polynomial growth and auto-taxis rates, Polynomial models of populations with autotaxis: “Travelling wave solutions”, Travelling Waves in Polynomial Population Models, Role of taxis in the dynamics of forest insect population, Dynamics of Forest Insect Density: Bifurcation Approach, A fractal approach to computer-analytical modelling of tree crowns, Properties of the emden-fowler equation under stochastic disturbances that depend on parameters, The main topological part of plane vector fields with fixed Newton diagram, On the problem of bifurcations of self-oscillations close to a 1:4 resonance, The asymptotics of the return map of a singular point with fixed Newton diagram, Asymptotics to the monodromy map of a singular point with fixed Newton diagram, Asymptotic behavior of the first return function of a singular point with fixed Newton diagram, The influence of predator saturation effect and competition among predators on predator-prey system dynamics, Index of a stationary point of a vector field on the plane, Communications of the Moscow Mathematical Society: a Topological Normal Form for a System of Two Differential Equations, Running Head: Modeling natural rotifer populations, Predator-prey system dynamics with saturation and competition, A complicated singular point of the “center-focus” type and the Newton diagram, Quasidiffusion model of population community, Diversity factors in mathematical ecology and population genetics. Observe that Howard University Professor Neil Hindman (pictured below with ex-student Jillian McLeod) has been Ph.D. advisor to more African Americans than anyone else in the world. regressive), theoretical (i. e. analytical) and computer-simulational [by L(indenmayer)-system] modelling. Recognition and subsequent control of tumour growth by the cells of the sp... We explore the population dynamics of predator-prey systems when their interactions are mediated by a prey population with access to a refuge. In 1976, Howard University established the first (and still, University students and faculty, institute members, and independent researchers, Technology or product developers, R&D specialists, and government or NGO employees in scientific roles, Health care professionals, including clinical researchers, Journalists, citizen scientists, or anyone interested in reading and discovering research. Using a rubric developed by a subcommittee of the Department of Mathematics Graduate Committee, the paper will be evaluated according to analysis, language control, grammar, clarity, and logic. The web pages Frequently Called Numbers, E-Mail Directory
Elbert Cox was Chair of Mathematics from 1957 to 1961.In 1972,
Mathematical Models for the "Schmalhgausent Law", On the asymptotic behaviour of the solutions to the replicator equation, Dynamics of population communities with prey migrations and Allee effects: A bifurcation approach, Myeloid cells in tumour-immune interactions, Role of Prey Dispersal and Refuges on Predator-Prey Dynamics, Pure cross-diffusion models: Implications for traveling wave solutions, Predator-Prey Interactions in Communities with prey dispersal and Allee effects, On the asymptotic behavior of the solutions to the replicator equation, "Traveling Wave" solutions of FitzHugh model with cross-diffusion, Modeling the dynamics of inhomogeneous natural rotifer populations under toxicant exposure, Families of traveling impulses and fronts in some models with cross-diffusion, Traveling fronts, impulses and trains in some taxis models, Bifurcations of travelling waves in population taxis models, Population models with singular equilibrium, Bifurcations of self-similar solutions of the Fokker-Plank Equation, Mathematical modeling of tumor therapy with oncolytic viruses: Regimes with complete tumor elimination within the framework of deterministic models, Mathematical modeling of anti-tumor virus therapy: Regimes with complete recovery within the framework of deterministic models, The Effects of Myeloid Cells on Tumor-Immune System Interaction in Different Time Scales, Modeling genome evolution with a diffusion approximation of a birth-and-death process. Theoretical considerations and computer simulations suggest that emergence of genetic parasites is intrinsic to evolving replicator systems. It is a well-established fact that tumors up-regulate glucose consumption to meet increasing demands for rapidly available energy by upregulating a purely glycolytic mode of glucose metabolism. Genetic parasites are ubiquitous satellites of cellular life forms most of which host a variety of mobile genetic elements including transposons, plasmids and viruses. The size distribution of gene families in a broad range of genomes is well approximated by a generalized Pareto function.
MATHEMATICIANS Featuring contributions from experts in mathematical biology and biomedical research, this edited volume covers a diverse set of topics on mathematical methods and applications in the biosciences. . The interaction between an oncolytic virus and tumor cells is amenable to mathematical modeling using adaptations of techniques employed previously for modeling other types of virus-cell interaction. The emphasis is in situations when differences in prey abundance between refuge and nonrefuge habitats are the drivers of prey dispersal. Mathematics Department underwent a transformation ushering in a strong research program that justified the development and inauguration of the first and only Ph.D. degree program at an African American Mathematician/ Physicist/ Nuclear Engineer J. Ernest Wilkinswas, at the time, a member of Howard's Physics Department. The paper deals with the problem of the stability of limit cycles at the resonance ratio 1:4. We use the modified Consensus model and show that the exchange between the habitats can lead to chaotization of originally regular plankton dynamics and synchronization of plankton biomass oscillations. The FitzHugh-Nagumo equations have been used as a caricature of the Hodgkin-Huxley equations of neuron firing and to capture, qualitatively, the general properties of an excitable membrane.
© 2008-2020 ResearchGate GmbH. program as an elite institution for mathematics studies among A minimum of 18 credits of work toward the Ph.D. degree shall be pursued after admission to candidacy. Analysis of Rotifer Population Dynamic Model. any biotic influence, resulting from possible variations in planetary albedo in W. Woodard, african americans to earned a Ph.D. were members had more black Ph.D. students than anyone else in the U.S. A (partial) list of the graduates of Howard University's undergraduate Neil Hindman) Delaware State Univerity, Abdulcadir Issa A student in the Ph.D. program who accumulates more than two courses of grades below "B" shall be dropped from the Mathematics Graduate Program. Model dynamics and their change by variation of these parameters were investigated by methods of bifurcation theory. write a Ph.D. dissertation and defend it satisfactorily. A-B | C-E | F-J | K-M | N-Q | R-Z, Academic Information (College of Arts & Sciences), Academic Probation, Suspension & Readmission, Administrative Services, Office of the Vice Provost for, College of Nursing & Allied Health Sciences, College of Engineering, Architecture & Computer Sciences, Atlantic Coast Social, Behavioral, & Economic Sciences Alliance, Avian Influenza Information, Pandemic Flu, Biochemistry & Molecular Biology, Department of, Bouchet Society (Edward Alexander Bouchet Graduate Honor Society), Brown@50: Fulfilling the Promise (Official Web site). by This paper is one of a series of papers concerned with the complete qualitative study of the different modifications of classical Volterra-Lotka equations. The courses for the Ph.D. degree presented by a candidate must include at most one course from Group 1, all courses from Group 2, at least two courses from Group 3 and a course on topics in History of Mathematics. These peculiarities appear when important ecological processes are considered (such as the saturation... Not Available Bibtex entry for this abstract Preferred format for this abstract (see Preferences) Find Similar Abstracts: Use: Authors Title Return: Query Results Return items starting with number Query Form Database: Astronomy Physics arXiv e-prints. OF THE AFRICAN DIASPORA Students in the Ph.D. degree program are expected to have successfully completed six graduate courses in the first year in the Ph.D. program and to have passed at least two of the qualifying examinations by the end of their second year in the Ph.D. program in order to obtain continuing university support. H. Butcher, Jr. a strong research program that justified the development and inauguration A student in the M.S.
In particular, there exist areas of... All possible “traveling wave” solutions of a conceptual auto-taxis model are investigated for cases of Malthus, logistic and Allee type functions of population growth and certain polynomial functions of auto-taxis intensity. i. Donaldson and This regime corresponds to the presence of a family of homoclinics to the origin, so-... A class of one-dimensional Fokker-Plank equations having a common stationary solution, which is a power function of the state of the process, was found. The bifurcation analysis of the systems shows that well-adapted predators can... Modelers of the long term carbon cycle in Earth history have previously Specifically, we show that different versions of non-homogeneous logistic-like models with a distributed Malthusian parameter imply non-D... Background:
Experimental work suggests that mature myeloid cells may be central to the activation of the specific immune response. Only courses in which students earn grades of "A" or "B" may be counted toward the Ph.D. degree. Associate Chair, Director of Graduate Studies.
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