We prove that P-sel, the class of all P-selective sets, is EXPimmune, but is not EXP/1-immune. That is, we prove that some infinite P-selective set has no infinite EXP-time subset, but we also prove that every infinite P-selective set has some infinite subset in EXP/1. Informally put, the immunity of P-sel is so fragile that it is pierced by a single bit of information. The above claims follow ...

Foreword The Software Engineering Laboratory (SEL) is an organization sponsored by the National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC) and created to investigate the effectiveness of software engineering technologies when applied to the development of applications software. The SEL was created in 1976 and has three primary organizational members: The goals ...

Spinal epidural lipomatosis (SEL) results from an abnormal accumulation of unencapsulated fat within the epidural space and is a rare cause of spinal cord compression, which needs to be considered with a high index of suspicion. It most commonly occurs secondary to chronic corticosteroid use and endocrinopathies. Idiopathic cases are highly associated with obesity. We report an unusual case of ...

an elevated lesion covered with normal mucosa is observed during endoscopy, the endoscopist would be suspicious of the presence of a mass underneath the mucosa and calls it a subepithelial lesion (SEL). However, SEL may be a true intramural mass underneath the mucosa or an extralumi-nal compression mimicking an intramural mass. For the evaluation of SEL, endoscopic ultrasonography (EUS) is cons...

a r t i c l e i n f o A pre-and post-test quasi-experimental design was used to test the impact of a 30-week, theoretically-based social and emotional learning (SEL) curriculum, The RULER Feeling Words Curriculum (" RULER "), on the academic performance and social and emotional competence of 5th and 6th grade students (N = 273) in fifteen classrooms in three schools. Academic performance was as...

Overgrowth of epidural fat, known as spinal epidural lipomatosis (SEL), can cause symptomatic compression of the spinal cord, conus medullaris, or cauda equina. Suggested predisposing factors such as obesity, steroid use, and diabetes mellitus have been based on a few reported cases, many of which were not surgically confirmed. There is a paucity of epidemiological data in surgically confirmed ...

Negativity biases, i.e., tendencies for negative features and interpretations to predominate over positive, are known to play a role in the etiology and maintenance of emotional disorders. Both depression and anxiety have been associated with such negative cognitive styles. Recently, Fazio, R.H., Eiser, J.R., and Shook, N.J. [(2004). Attitude formation through exploration: Valence asymmetries. ...

the explosion of information communication technology (ict) since the beginning of the 20 th century has been rendering manual-based library system in academic, research, special and public libraries less relevant. this is because using and implementing information communication technology in the library depend largely on the librarian attitude toward the current digital age. this study examine...

Many programs have been developed to help schools enhance students' health and reduce the prevalence of drug use, violence, and high-risk sexual behaviors. How should educators choose among these? This article describes selection criteria based on theory, research, and best educational practice that identify key social and emotional learning (SEL) competencies and program features. The SEL comp...