Mesh smoothing is a method to remove noise or small scale features from large meshes, while still preserving the basic overall shape and important features of the original model. Most sophisticated smoothing methods rely on ideas from differential geometry. In this lecture we discuss some basic geometric concepts and introduce some simple smoothing algorithms; the paper presented at this lectur...

Principal components analysis (PCA) is a basic and widely used technique for exploring data. If you go on to take specialized courses in machine learning or data mining, you’ll certainly hear more about it. The goal of this lecture is develop your internal mapping between the linear algebra used to describe the method and the simple geometry that explains what’s really going on. Ideally, after ...

In this lecture we show how to remove the dependence on the width in the multiplicative weights update/randomized fictitious play method, in the case when the entries of the matrix are non-negative. Our presentation follows mostly the framework of Koufogiannakis and Young [KY07]. In the next lecture will show how to derive the result of Garg and Könemann [GK98] for multicommodity flows from thi...

Objectives To investigate medical students' perceptions of lecture and non-lecture-based instructional methods and compare preferences for use and quantity of each during preclinical training. Methods We administered a survey to first- and second-year undergraduate medical students at the University of Alabama School of Medicine in Birmingham, Alabama, USA aimed to evaluate preferred instruct...

BACKGROUND Problem-based learning (PBL) is a method used to develop cognitive and metacognitive skills in nursing students. OBJECTIVES The present study was conducted to compare the effects of PBL and the traditional lecture method on critical thinking skills and metacognitive awareness in nursing students in a critical care nursing course. DESIGN The present study was conducted with a quas...

fullerenes are closed−cage carbon molecules formed by 12 pentagonal and n/2 – 10hexagonal faces, where n is the number of carbon atoms. patrick fowler in his lecture inmcc 2009 asked about the wiener index of fullerenes in general. in this paper werespond partially to this question for an infinite class of fullerenes with exactly 10ncarbon atoms. our method is general and can be applied to full...

The primary hypothesis of this study was that a lecture on basic hygiene routines could be associated with an increase in the use of disinfectant for hand hygiene. A secondary hypothesis was that the lecture could positively affect the staff's knowledge of and attitudes toward basic hygiene routines.A quasi-experimental design including one ward of the department of orthopedics in a Swedish uni...