Solitary insulinoma is a rare pancreatic tumor in all age groups with an estimated incidence of 1 in 250 000 persons a year. It is even rarely in childhood and mostly shows benign behavior. Cases with uncertain or malignant biology are extremely rare with less than 30 cases described in the literature. Here we report a case of pediatric insulinoma, the first in our department files in the past ...

A key problem in behavior based control is to coordinate conflicts and competitions among multiple reactive behaviors. This paper presents a new method for behavior fusion for robot navigation in uncertain environments using fuzzy logic. The inputs to the proposed fuzzy control scheme consist of a heading angle between a robot and a specified target and the distances between the robot and the o...

This paper presents a model in which "instrument uncertainty"—that is, an uncertain mapping from monetary policy to macroeconomic outcomes—may mitigate the inflationary bias problem that arises when efficient monetary policy rules are time-inconsistent. If the relation between monetary policy and macroeconomic outcomes is uncertain, the private sector has an incentive to scrutinize the past for...

Humans and animals learn from experience by reducing the probability of sampling alternatives with poor past outcomes. Using simulations, J. G. March (1996) illustrated how such adaptive sampling could lead to risk-averse as well as risk-seeking behavior. In this article, the author develops a formal theory of how adaptive sampling influences risk taking. He shows that a risk-neutral decision m...

This paper presents a method for fuzzy logic-based 'perception-action' behavior control of a mobile robot in uncertain environments. A key problem in 'perception-action' behavior control is to coordinate and integrate more reactive behaviors when the mobile robot executes tasks in complex environments. The main idea of the paper is to formulate 'perception-action' behaviors and to coordinate th...

While the technology acceptance model (TAM) is generally robust it does not always adequately explain user behavior. Recent studies argue that including individual characteristics in TAM can improve our understanding of those conditions under which TAM is not adequate for explaining acceptance behavior. Using this argument, we examine the effects of positive mood, one individual characteristic ...