This paper studies market schemes in which auctions are used to coordinate the buyer and competing suppliers in a procurement setting. While auction is typically considered a price-determination mechanism, it could also serve as a coordination mechanism. Possible auction and market mechanisms and their expected payoffs are analyzed in a two-supplier, one-buyer system. The auction mechanism coul...

We develop a game-theoretic framework to investigate the competitive implications of consumer-to-consumer electronic marketplaces, which promote concurrent selling of new and used goods. In many e-marketplaces, where suppliers cannot directly use second-hand goods for practicing inter-temporal price discrimination, the threat of cannibalization of new goods by used goods become significant. We ...

Relationship duration, supplier autonomy, and customer status affect the performance of suppliers of modular and architectural components differently. Data on U.S. carburetor and clutch manufacturers from 1918 to 1970 shows that suppliers of architectural goods (carburetors) benefit from high status customers, current autonomy, and, to a lesser extent, long-term relationships. Only autonomy aff...

Patients with repaired Tetralogy of Fallot (ToF), who have RBBB and predominant right ventricular (RV) dysfunction may benefit from RV electromechanical resynchronization. We describe the case a patient ToF, biventricular (BiV) ineffective cardiac resynchronization therapy (CRT) in whom His bundle pacing (HBP) fused wall achieved CRT acute hemodynamic improvement. N/A 58 YOF ToF BiV presented d...

background and objective: chest x-ray is usually the first radiography performed for a newborn. this test is easily accessible and yet a basic screening method. different results have been reported in various studies regarding the diagnostic value of chest x-ray in cardiovascular disease in children. materials and methods: the study was carried out retrospectively using the medical files of 100...

introduction induction of general anesthesia in patients with superior vena cava (svc) syndrome may cause airway obstruction and cardiovascular collapse. case presentation herein, we introduced a patient with the diagnosis of dissecting aneurysm of the ascending aorta who was candidate for emergency surgery. he also had symptoms of svc syndrome. to maintain airway patency during anesthetic mana...

A 16yearold girl visited our clinic because of chest pain that was exacerbated with swallowing. Ten days previously, the patient had spilled boiling water on herself and burned her legs. She saw a dermatologist, who prescribed doxycycline (100 mg per day in tablet form) to prevent skin infection. Five days previously, the patient took a doxycycline tablet with a small amount of water just befor...