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...

One of the major aims of the Structural Adjustment Programs, except from correcting short-term imbalances in the economy and creating an environment for sustained economic growth has been, according to the World Bank, to correct the urban-bias politics in Africa. The World Bank uses neo-classic economic models in their analysis of the characteristic of the urban-bias as well as its outcomes. Ac...

Based on the option that ultrasound-guided core needle biopsy (US-CNB) of the enhanced portion of anterior mediastinal masses (AMMs) identified by contrast-enhanced ultrasound (CEUS) would harvest viable tissue and benefit the histological diagnoses, a retrospective study was performed to elucidate the correlation between the prebiopsy CEUS and diagnostic yield of AMMs and found that CEUS poten...

Corresponding author: Xiulan Zhang MD, PhD Professor of Ophthalmology, Vice director of Glaucoma Department, Director of Clinical Research Center, Director of Institution of Drug Clinical Trials, Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University 54S.Xianlie Road, Guangzhou, China 510060 Email: [email protected]. Tel: +86-20-87330484 Fax: +86-20-8...

We consider the problem of choosing a partition of a set of objects by a set of agents. The private information of each agent is a strict ordering over the set of partitions of the objects. A social choice function chooses a partition given the reported preferences of the agents. We impose a natural restriction on the allowable set of strict orderings over the set of partitions, which we call a...

From 1876 to 1879 and from 1896 to 1902 due to absence of monsoons related to El Nino events, India experienced the two worst famines of all times. Karl Polanyi explained the millions of fatalities as a consequence of the introduction of market prices by British colonial institutions, in areas where traditional agricultural societies had kept significant stocks in rainy seasons in order to comp...

In this paper, we obtain the strong consistency and asymptotic distribution of the Theil-Sen estimator in simple linear regression models with arbitrary error distributions. We show that the Theil-Sen estimator is super-efficient when the error distribution is discontinuous and that its asymptotic distribution may or may not be normal when the error distribution is continuous. We give an exampl...