Classical conditioning is one of the most fundamental forms of learning, and yet little is known regarding the effects of brain injury on conditioning processes in humans. Three patients with temporal lobe lesions and severe memory problems were therefore assessed in terms of eyeblink conditioning, extinction, discrimination and reversal learning, and in one patient electrodermal conditioning w...

PURPOSE The aim of this study was to determine whether two methods of documentation, print and electronic forms, for the assessment of patient-reported outcomes (PRO) in complete denture wearers provide comparable results. The study also quantified the time needed for filling the forms by each method. MATERIALS AND METHODS Thirty participants enrolled in a university clinic answered two forms...

Obstructive sleep apnea (OSA) is associated with cognitive impairment, daytime sleepiness, and cardiovascular and cerebrovascular morbidity and mortality. Continuous positive airway pressure (CPAP) remains the primary treatment for this disorder, and recent data provide novel insight regarding optimal CPAP application and compliance. Promising alternate forms of OSA treatment have also been add...

We present an account of negative differential forms within a natural algebraic framework of differential graded algebras, and explain their relationship with forms on path spaces.

The critical evidence for regarding populations of two or more forms as belonging to separate species is that they cari coexist without losing their genetic integrity by hybridization. This widely accepted definition is not invalidated by rare hybridisation since SO tenuous a gene exchange does not affect the integrity of the gene pool of the populations of the species (MAYR, LINSLEY, & USINGER...

Childhood scleroderma may present in a variety of clinical forms that differ in clinical presentation, extracutaneous features, clinical course, and outcome. All include hardening of the skin as a major feature. This article reviews these various entities, focusing on primarily the clinical features. In addition, current concepts regarding pathogenesis and treatment are discussed.

The three-dimensional X-ray structures of the oxidized and reduced forms of rubredoxin from Pyrococcus furiosus, determined at -161 degrees C, and the NMR structure of the zinc-substituted protein, determined in solution at 45 degrees C, are compared. The NMR and X-ray structures, which were determined independently, are very similar and lead to similar conclusions regarding the interactions th...

Uncertainty enters the dynamic tradeoffs of environmental and natural resource management in a variety of ways and forms. In this chapter we review the various sources of uncertainty, the methodologies developed to account for them and implications regarding management of environmental and natural resources.

There has been much controversy regarding the timing of speciation events in birds, and regarding the relative roles of natural and sexual selection in promoting speciation. Here, we investigate these issues using winter wrens (Troglodytes troglodytes), an unusual example of a passerine with a Holarctic distribution. Geographical variation has led to speculation that the western North American ...

The SV40 T antigen database (http://www.pitt.edu/pipaslab/) lists viruses and plasmids expressing mutant forms of large T antigen. Each entry contains information regarding the mutant designation, mutant type, virus strain, nucleotide change, amino acid change and pertinent references. The database is now available as an internet searchable index.