The American Heart Association (AHA) is known and respected worldwide as an organization that is a credible forum and source of scientific information for the prevention and treatment of patients with cardiovascular disease and stroke. Although the focus of the AHA has historically been within the United States, over the past few years, the group has felt a growing concern about the global burd...

Creating and maintaining adaptive educational applications is a hard work for teachers and developers. In order to help the author to perform these tasks the e-learning systems must provide authoring and management tools. In this chapter we are going to describe several useful tools for working with adaptive educational hypermedia systems, concretely with the AHA! system. AHA! is an well-known ...

A sudden comprehension that solves a problem, reinterprets a situation, explains a joke, or resolves an ambiguous percept is called an insight (i.e., the "Aha! moment"). Psychologists have studied insight using behavioral methods for nearly a century. Recently, the tools of cognitive neuroscience have been applied to this phenomenon. A series of studies have used electroencephalography (EEG) an...

The American Heart Association (AHA) continues its half-century tradition as the premier provider of the highest impact cardiovascular and stroke science information with this month’s debut of AHA Journals Online. The introduction of the AHA’s new World Wide Web (WWW) site is another major step toward expanding the reach of the journals, providing readers with virtually instant access to an unp...

The photoreactions of 9-[6-(4-azidobenzamido)hexylamino]acridine (AHA) and 9-[6-(2-diazocyclopentadienylcarbonyloxy)hexylamino]acridine (DHA) with double stranded DNA result in formation of single strand nicks and alkali labile sites (adducts) with an efficiency of 6 x 10(-3) nicks per AHA and 3 x 10(-2) nicks per DHA molecule. The alkali dependent DNA cleavage by AHA shows a pronounced A+G pre...

The latest guidelines on neonatal resuscitation from American Heart Association (AHA) [1] and European Resuscitation Council (ERC) [2] were released in October 2015. There have been slight variations between these guidelines; although they use nearly identical literature for evidence evaluation. We present here the major changes in the recent guidelines [3,4], and comparison between the ERC and...

In this paper we are going to show how to discover interesting prediction rules in student usage information, and use them to improve adaptive web courses. We have used AHA! to make a course that adapts both the presentation and the navigation depending on the level of knowledge that each particular student has. We have made several changes in AHA! to improve its power in the educational area. ...

BACKGROUND Since the release of the 2013 American College of Cardiology/American Heart Association (ACC/AHA) guidelines, significant controversy has surrounded the applicability of the new cholesterol guidelines and the Pooled Cohort Equations. In this present study, we investigated whether eligibility for statin therapy determined by the 2013 ACC/AHA guidelines on the management of blood chole...

BACKGROUND- In 2008, the American Heart Association (AHA) recommended a 2-step screening method, consisting of the 2-item Patient Health Questionnaire (PHQ-2) followed by the 9-item Patient Health Questionnaire (PHQ-9), for identifying depression in cardiovascular patients. The accuracy and prognostic value of this screening method have not been evaluated. METHODS AND RESULTS- We administered t...

PURPOSE Hospital admissions for chest pain are frequent and costly. The use of objective criteria to determine the need for hospitalization may save money. Here we compare the 2002 American College of Cardiology/American Heart Association (ACC/AHA) guidelines for the management of patients with unstable angina and nonST-segment elevation myocardial infarction to clinical judgment as diagnostic ...