(1) Persistence of original atrioventricular (A-V) canal tissue (Mall, 1912; Koch, 1922). (2) New formation. (a) In situ-A-V canal and ventricle (Wahlin, 1935; Sanabria, 1936). (b) From sinus musculature-with secondary migration distally (Retzer, 1908). (c) From A-V canal with secondary migration.distally (Shaner, 1929; Walls, 1947). (d) From ventricle with secondary migration proximally (Stien...

Five new spider species of the genus Pholcus Walckenaer, 1805, P. duryun sp. nov. , hwaam mohang worak and yangpyeong belonging to phungiformes group in family Pholcidae C. L. Koch, 1850, are newly described from South Korea. These were collected mixed forests mountainous, hilly, coastal terrains. This study provides diagnoses, detailed descriptions, distribution maps, taxonomic photographs the...

Consecutive reactions of aromatic–OH adducts with NO, NO2 and O2: benzene, toluene, mand p-xylene, hexamethylbenzene, phenol, m-cresol and aniline R. Koch, R. Knispel, M. Elend, M. Siese, and C. Zetzsch Fraunhofer-Institute of Toxicology and Experimental Medicine, Hannover, Germany Atmospheric Chemistry Research Laboratory, University of Bayreuth, Germany Received: 26 June 2006 – Accepted: 26 J...

“Primatology” Panel Discussion Kate Baker a , Terry L. Maple b , V. Wensley Koch c & Elizabeth V. Lonsdorf d a Tulane National Primate Research Center , Covington, Louisiana b School of Psychology. Georgia Institute of Technology c Animal Care, Animal and Plant Health Inspection Service, U.S. Department of Agriculture , Loveland, Colorado d Lincoln Park Zoo's Lester E. Fisher Center for the Stu...

The crowding of wireless band has necessitated the development of multiband and wideband wireless antennas. Because of the self similar characteristics, fractal concepts have emerged as a design methodology for compact multiband antennas. A Koch-like fractal curve is proposed to transform ultra-wideband (UWB) bow-tie into so called Koch-like sided fractal bow-tie dipole. A small isosceles trian...

OBJECTIVES The purpose of this study was to characterize anisotropy in the triangle of Koch by relating electrophysiology with anatomy. BACKGROUND Atrioventricular (AV) node fast and slow pathway characteristics have been suggested to be due to nonuniform anisotropy in the triangle of Koch. METHODS During atrial pacing, we determined the electrical activity within the triangle of Koch by mu...