Brain systems involved in arithmetic with positive versus negative numbers

the relationship between brain-behavioral systems and negative and positive affect in patients with migraine

conclusions it can be concluded that brain-behavioral systems may be the foundation of behavioral and emotional tendencies in patients with migraine headaches. results the results showed that positive affect had a significant positive correlation with active avoidance parameters and negative significant correlation with passive avoidance and extinction parameters. the findings also indicated th...

Arithmetic With Complex Numbers

Understanding and Using Principles of Arithmetic: Operations Involving Negative Numbers

Previous work has investigated adults' knowledge of principles for arithmetic with positive numbers (Dixon, Deets, & Bangert, 2001). The current study extends this past work to address adults' knowledge of principles of arithmetic with a negative number, and also investigates links between knowledge of principles and problem representation. Participants (N = 44) completed two tasks. In the Eval...

Polling Systems with Positive and Negative Customers

We study Polling Systems (POLS) with both positive and negative customers, a direction not yet pursued in the literature on POLS. We analyze the Gated, Exhaustive and Globally-Gated service regimes and derive expressions for the Probability Generating Functions (PGFs) of the system’s states and for the Laplace-Stieltjes Transforms of the waiting times. Since the transforms depend on an unknown ...

A new parametric method for ranking fuzzy numbers based on positive and negative ideal solutions