Los trastornos menstruales constituyen una entidad clínica que se presenta frecuentemente durante los años de la adolescencia. En los primeros cinco años
después de la menarquia, los ciclos menstruales anovulatorios asociados a la inmadurez del eje hipotálamo –hipófisis– ovario,…

2013

2013

2008

It has been suggested there is a knowledge base that surrounds the use of 3D modeling within the engineering design process and correspondingly within engineering design graphics education. While solid modeling receives a great deal of attention and discussion relative…

Recently, many individuals have been faced with a transfer of learning issue, surrounding the move from one 3-D CAD system to another.  The purpose of this research was to test the hypothesis that, with minimal instruction, users can transfer their…

Engineering and technical graphics professionals have seen major changes in the content and the way we teach our students (Clark & Scales, 2000).  Today, professionals going into fields related to engineering/technical graphics require a broader knowledge of differing forms of…

ROI (Region of Interest) in an image or video signal contains important information and may be used for access control at various qualities using multiresolution analysis (MRA). This paper proposes quality access control method of compressed color image by modulating…

Spatial ability research has been approached from several psychological vantages since its beginnings in the late 1800s. This contribution attempts a summation of spatial ability research, beginning with a historical vignette and a major section on each psychological approach including…

Constraint-based modeling tools, as well as computer graphics tools in general, offer the user many choices in commands and techniques for creating graphics, which forces the user to have a strategy or plan as they proceed. The formulation of this…