we study umbilic (space-like) submanifolds of pseudo-riemannian space forms, then define totally semi-umbilic space-like submanifold of pseudo euclidean space and relate this notion to umbilicity. finally we give characterization of total semi-umbilicity for space-like submanifolds contained in pseudo sphere or pseudo hyperbolic space or the light cone.a pseudo-riemannian submanifold m in (a ps...

Korean J Radiol 14(3), May/Jun 2013 kjronline.org RE: Evaluating the Semisolid Thyroid Nodules with the Diffusion Weighted Imaging Tool Ferhat Cuce, MD, Guner Sonmez, MD, Emre Karas̨ahin, MD Department of Radiology, Van Military Hospital, Van 65020, Turkey; Department of Radiology, GATA Haydarpasa Training Hospital, Istanbul 34040, Turkey; Department of Obstetrics and Gynecology, Van Military Ho...

5 PREFACE 7 LIST OF ORIGINAL PUBLICATIONS 8 RESEARCH INPUT AND AUTHORSHIP OF ARTICLES (I-IV) 9

The swarming phenomenon of 18 strains was tested with the intention to identify motile, swarming bacteria. Not all bacteria which are motile in liquid are able to swarm on semisolid nutrient broth, but all swarming bacteria show characteristic swarming developments, resulting in different swarming zones which could be scanned densitometrically. The densitograms are fully reproducible for the sa...

T paper makes indirect inference about the time variation in expected stock returns by comparing unconditional sample variances to estimates of expected conditional variances. The evidence reveals more predictability as more information is used, and there is no evidence that predictability has diminished in recent years. Semi-strong-form evidence suggests that time variation in expected returns...

Fungal colonies are able to exhibit different morphologies depending on the environmental conditions. This allows them to cope with and adapt to external changes. When grown in solid or semisolid media the bulk of the colony is compact and several morphological transitions have been reported to occur as the external conditions are varied. Here we show how a unified simple mathematical model, wh...