1 Department of Epidemiology & Bio-statistics, Chittaranjan National Cancer Institute, Calcutta, India. 2 Health Services Research, St. Louis University School of Public Health, St. Louis, MO 63108 Address for Correspondence: Dr. Urmi Sen, Department of Epidemiology and Biostatistics, Chittaranjan National Cancer Institute 37, S.P. Mukherjee Road, Calcutta 700026, Fax: 91-33-475 7606, e-mail: u...

Computational steering is a technique that combines simulation and visualization. The user is continuously provided with visual feedback about the state of the simulation, and can change parameters on the y. Designers can vary parameters to optimize their product, users can detect errors in the input early, researchers can do qualitative sensitivity analyses easily. The implementation of comput...

We present a method for the deenition of multiple views in 3D interfaces for computational steering. The method uses the concept of a point-based parametrizable camera object. This concept enables a user to create and conngure multiple views on his custom 3D interface in an intuitive graphical manner. Each view can be coupled to objects present in the interface, parametrized to (simulation) dat...

1 Department of Oral and Maxillofacial Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P.R.China. 2 Department of Periodontology, Sun Yat-Sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China. 3 Department of Oncological Radiotherapy, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, P.R. China. Intern...

1 Department of Oral and Maxillofacial Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P.R.China. 2 Department of Periodontology, Sun Yat-Sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China. 3 Department of Oncological Radiotherapy, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, P.R. China. Intern...

In fuzzy set theory non-idempotency arises when the conjunction is interpreted by arbitrary t-norms. There are many instances in mathematics where set theory ought to be non-commutative and/or non-idempotent. The purpose of this paper is to combine both ideas and to present a theory of non-commutative and non-idempotent quantale sets (among other things, standard concepts like fuzzy preorders a...

Zhen-wei Liang,* Zheng Wang,* Hui Chen, Cen Li, Ti Zhou, Zhonghan Yang, Xia Yang, Yanfang Yang, Guoquan Gao,* and Weibin Cai* Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, Guangdong Province, China; Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China; Key Laboratory of F...

The usual way to study the local structure of Equilibrium State of an Axiom-A diffeomorphism or flow is to use the symbolic dynamic and to push results on the manifold. A new geometrical method is given. It consists in proving that Equilibrium States for Hölder-continuous functions are related to other Equilibrium States of some special sub-systems satisfying a sort of expansiveness. Using diff...

Work on calculations with simplicial and cubical groups in AXIOM was carried out using loan equipment and software from IBM UK and guidance from L A Lambe. We report on the results of this work, and present the AXIOM code written by the second author during this period. This includes an implementation of the monoids which model cubes and simplices, together with a new AXIOM category of near-rin...

In 1969, Hirsch posed the following problem: given a diffeomorphism f : N → N , and a compact invariant hyperbolic set Λ of f , describe the topology of Λ and the dynamics of f restricted to Λ. We solve the problem where Λ = M is a closed 3-manifold: if M is orientable, then it is a connected sum of tori and handles; otherwise it is a connected sum of tori and handles quotiented by involutions....