The Neuberg - Mineur circle /
نویسنده
چکیده
The impetus for this note was given to me by aMathesis article [6] by Thébault and Mineur from 1931 more precisely, as I could not locate the article itself, by its review (JFM 57.0773.03) in the Jahrbuch für Mathematik [8], which only mentioned the result of the article without proof. The result a theorem about quadrilaterals, which, in spite of its simplicity and elegance, has been apparently forgotten ever since immediately attracted my attention. After some time I had found a proof and an extension of the result, which will make the subject of the following note. However, before we come to the formulation of these theorems, we have to discuss some prerequisites. Readers with sound experience in geometry can skip these and only pick up the notations (the ones de ned in 1. and the de nition of P -zero circle in 5.).
منابع مشابه
Influence of 10-MDP Adhesive System on Shear Bond Strength of Zirconia-Composite Interfaces
Introduction: This in-vitro study investigated the initial 24h bond strength between different composites and zirconia after application of four different adhesive systems. Methods: A total of 120 specimens of zirconia (InCoris, Sirona, Germany, Bernsheim) were ground with a 165 µm grit rotating diamond disc. Thirty specimens were each additionally treated with Cimara Zircon “CZ” (VOCO GmbH, ...
متن کاملBudd-Chiari syndrome after treatment with budesonide in a cirrhotic patient with autoimmune hepatitis.
* Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany. † Department of Visceral and Transplantation Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany. ‡ Department of Pathology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany. § Institute for Radiology, Hannov...
متن کاملInfluence of artificial aging on the shear bond strength of zirconia-composite interfaces after pretreatment with new 10-MDP adhesive systems
Introduction: This in-vitro study investigates the bond strength of different zirconia composites with three different modern adhesive systems after artificial aging using thermocycling and water storage. Methods: A total of 90 specimens of zirconia (InCoris, Sirona, Germany, Bernsheim) were ground using a 165 µm grit rotating diamond disc. Thirty specimens were additionally treated with eithe...
متن کاملComments on Neuberg’s Review of Causality
I am grateful to Professor Neuberg for taking the time to study my book Causality and for summarizing its main ideas in a language familiar to readers of Econometric Theory+ I will comment on several issues that I believe warrant further discussion+ First, I will summarize in my own style what economists can learn from Causality, and, second, I will correct several inaccuracies in the summary o...
متن کامل