## Search

Now showing items 1-10 of 21

#### Understanding cycling travel distance: The case of Medellin city (Colombia)

(Elsevier Ltd., 2020-06-23)

The relevance of cycling as a mode of transportation is increasingly being recognized in many cities around the world, and the city of Medellin (Colombia) is no exception. To better understand cycling travel behavior in ...

#### Bases para la modelación de epidemias: El caso del síndrome respiratorio agudo severo en Canadá

(Universidad Nacional de Colombia, 2007-01-01)

Objective: Severe acute respiratory syndrome propagation in Canada during 2003 is analysed by means of simple models, comparing the influence of isolation measures on two epidemic waves. Methods: Deterministic susceptible-infected ...

#### Quantum hypercomputation based on the dynamical algebra su(1, 1)

(IOP PUBLISHING LTD, 2006-10-06)

An adaptation of Kieu's hypercomputational quantum algorithm (KHQA) is presented. The method that was used was to replace the Weyl-Heisenberg algebra by other dynamical algebra of low dimension that admits infinite-dimensional ...

#### Possible topological quantum computation via khovanov homology: D-brane topological quantum computer

(SPIE-INT SOC OPTICAL ENGINEERING, 2009-01-01)

A model of a D-Brane Topological Quantum Computer (DBTQC) is presented and sustained. The model isbased on four-dimensional TQFTs of the Donaldson-Witten and Seiber-Witten kinds. It is argued that the DBTQC is able to ...

#### Computing Tutte polynomials of contact networks in classrooms

(SPIE-INT SOC OPTICAL ENGINEERING, 2013-01-01)

Objective: The topological complexity of contact networks in classrooms and the potential transmission of an infectious disease were analyzed by sex and age. Methods: The Tutte polynomials, some topological properties and ...

#### Optimal control in a model of malaria with differential susceptibility

(SPIE-INT SOC OPTICAL ENGINEERING, 2014-01-01)

A malaria model with differential susceptibility is analyzed using the optimal control technique. In the model the human population is classified as susceptible, infected and recovered. Susceptibility is assumed dependent ...

#### Analysis of a generalized model for influenza including differential susceptibility due to immunosuppression

(SPIE-INT SOC OPTICAL ENGINEERING, 2014-01-01)

Recently, a mathematical model of pandemic influenza was proposed including typical control strategies such as antivirals, vaccination and school closure; and considering explicitly the effects of immunity acquired from ...

#### Possible quantum algorithms for the Bollobás-Riordan-Tutte polynomial of a ribbon graph

(SPIE-INT SOC OPTICAL ENGINEERING, 2008-01-01)

Three possible quantum algorithms, for the computation of the Bollobás-Riordan-Tutte polynomial of a given ribbon graph, are presented and discussed. The first possible algorithm is based on the spanning quasi-trees expansion ...

#### Analysis of the boundary conditions for pyramidal spine fins in extended surface heat transfer

(WITPress, 2014-01-01)

Many studies are conducted for pyramidal spine fins relating to temperature profiles and fin efficiencies. However, it is found that a deeper look into the boundary conditions is required. The conditions at the base are ...

#### Prediction of in-vivo iontophoretic drug release data from in-vitro experiments-insights from modeling

(ELSEVIER SCIENCE INC, 2015-12-01)

A strategy was developed to predict in-vivo plasma drug levels from data
collected during in-vitro transdermal iontophoretic delivery
experiments. The method used the principle of mass conservation and the
Nernst-Planck ...