Colon tumor cells are more responsive to certain growth modulators in their local environment in vivo than are normal colonocytes. Examples of this class of compounds are the fecal diglycerides (DGs)(E. Friedman et al., Cancer Res., 49: 544-548, 1989), which may act as endogenous tumor promoters. At the concentration found in vivo, fecal DGs composed of oleic, myristic, and palmitic fatty acids...

We investigate whether the spectral-type of a locally dominant (most luminous) galaxy can be used to select sets of galaxies that are physically associated (groups). We assume that passive dominants trace a group-like potential, and SF-dominants a field-like environment. The group sample includes 988 groups selected in the 2dFGRS applying a maximum magnitude difference criterion. We find that t...

abstract: enviromental concerns, improvements in renewable energy technologies, governmental incentives for the use of these resources, and increased t&d; costs, are the main factors driving the energy sector into a new era, where considerable portions of electrical demand will be met through widespread installation of distributed energy resources (ders). the virtual power plant (vpp) is a dece...

A Dynamic Geometry System (DGS) is an application that allows the exact on-screen drawing of (generally) planar geometric diagrams and its manipulation by mouse dragging certain elements making all other elements to automatically self adjust to the changes. This is also known as Interactive geometry. From the beginning, DGS have been the paradigm of new technologies applied to Math education. B...

Velocardiofacial syndrome (VCFS) and DiGeorge syndrome (DGS) are characterized by a wide spectrum of abnormalities, including conotruncal heart defects, velopharyngeal insufficiency, craniofacial anomalies and learning disabilities. In addition, numerous other clinical features have been described, including frequent psychiatric illness. Hemizygosity for a 1.5-3 Mb region of chromosome 22q11 ha...

The use of dynamic geometry software (DGS) in all kinds of mathematical games has become a widespread phenomenon. Rich features and availability of free DGS, such as GeoGebra, have caused a growing interest for developing teaching materials for subjects other than matematics. We present the teaching materials that we developed in GeoGebra for the subject of geography at elementary and middle sc...

In this paper, we propose various defected ground structures (DGS) for improving the return loss and impedance bandwidth of an ultra wideband antenna. A comparative parametric analysis has been made on the basis of return loss, gain, radiation pattern characteristics and impedance bandwidth. Simulation results are analyzed and presented for an ultra wideband antenna with four slots in its radia...