introduction: this study was carried out to evaluate the technical quality of root canal treatment (rct) performed by undergraduate dental students at the islamic azad university in tehran, iran. materials and methods: four-hundred records of patients who had received rct at faculty of dentistry, between the years 2004-2006 were evaluated. for each treated tooth at least three periapical x-rays...

attempt to reconstruct a true spectrum from an observed one. The problem we're considering is sometimes called blind deconvolution, because we're trying to unravel not only the spectrum, but the function that caused the blurring. These problems also arise in image deblurring. Spectroscopy Consider the data in Figure 1, which represents counts measured by a spectrometer. Suppose we have particle...

We propose using domain-independent task decomposition techniques for situations in which cases are the sole or the main source for domain knowledge. Our work is motivated by project planning domains, where hierarchical cases are readily available, but neither a planning domain theory nor case adaptation knowledge is available. We present DInCaD (Domain-Independent System for Case-Based Task De...

The present research was designed to examine hypotheses derived from the proposition that shame is the core of fear of failure. Study 1 was conducted in a naturalistic setting and demonstrated that individuals high in fear of failure reported greater shame upon a perceived failure experience than those low in fear of failure. These findings were obtained controlling for other negative emotions....

Improper management of software evolution commonly leads to a lack of up-to-date specification. This situation is further aggravated by imprecise, changing requirements and short time to market requirement, which can result in software that is characterized by presence of bugs, anomalies and even security threat. Software specification mining is a new technique to address this concern by inferr...

Context: Proneness to overgeneralization of self-blame is a core part of cognitive vulnerability to major depressive disorder (MDD) and remains dormant after remission of symptoms. Current neuroanatomical models of MDD, however, assume general increases of negative emotions and are unable to explain biases toward emotions entailing self-blame (eg, guilt) relative to those associated with blamin...

Nucleus accumbens dopamine is known to play a role in motivational processes, and dysfunctions of mesolimbic dopamine may contribute to motivational symptoms of depression and other disorders, as well as features of substance abuse. Although it has become traditional to label dopamine neurons as "reward" neurons, this is an overgeneralization, and it is important to distinguish between aspects ...