Godin, R. and R. Missaoui, An incremental concept formation approach for learning from databases, Theoretical Computer Science 133 (1994) 3533385. This paper describes a concept formation approach to the discovery of new concepts and implication rules from data. This machine learning approach is based on the Galois lattice theory, and starts from a binary relation between a set of objects and a...

BACKGROUND Physical activity is associated with reduced mortality and morbidity. Cardiac rehabilitation (CR) is an effective intervention for patients with cardiovascular disease (CVD). Unfortunately, women are less likely to engage in, or sustain, regular physical activity. Objectives were to (1) describe women's guidelines-based levels of physical activity during and after CR and (2) determin...

Received May 11, 2012, Revised May 29, 2012, Accepted for publication June 3, 2012 Corresponding author: Kwang Hyun Cho, Department of Dermatology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 110-744, Korea. Tel: 82-2-2072-2412, Fax: 82-2-742-7344, E-mail: [email protected] This is an Open Access article distributed under the terms of the Creative Commons Attrib...

PURPOSE/OBJECTIVES To compare physical activity outcome expectations related to cancer survival with traditional physical activity outcome expectations in breast and colon cancer survivors
. DESIGN Cross-sectional survey
. SETTING Canada and the United States. SAMPLE 146 participants
. METHODS Self-reported survey instruments and height and weight measurement. The online survey was comp...

Poeciliid fishes such as green swordtails Xiphophorus helleri and guppies Poecilia reticulata aggregate in social groups called shoals. In addition to reducing predation risk and increasing foraging efficiency (e.g. Magurran & Pitcher, 1987; Ranta & Juvonen, 1993), fish shoals promote the transfer of social information within the group. For instance, information about foraging routes is transmi...

The early indications of vitamin C deficiency are unremarkable (fatigue, malaise, depression) and may manifest as a reduced desire to be physically active; moreover, hypovitaminosis C may be associated with increased cold duration and severity. This study examined the impact of vitamin C on physical activity and respiratory tract infections during the peak of the cold season. Healthy non-smokin...

The aim of the present study was to adapt the Preference for and Tolerance of the Intensity of ExerciseQuestionnaire (PRETIE-Q) for the Brazilian population and to perform an initial psychometric evaluation. The study consisted of two phases: I) translation and back-translation and production of a Brazilian Portuguese version of the questionnaire; and II) psychometric evaluation and construct v...

The existence of a global solution for the Cauchy problem for the nonlinear wave equation (1) (∂tt −∆)u = F (u′, u′′) , t ≥ 0, x ∈ R , is established by S. Klainerman [6] under a suitable algebraic condition called the null condition on the quadratic nonlinearity in F (u′, u′′). The global or “almost global” solution of the corresponding mixed problem has been studied by Y. Shibata and Y. Tsuts...

OBJECTIVE Fantasy realization theory (Oettingen, 2012) proposes that fantasizing about a desired future or dwelling upon negative reality rarely changes behavior whereas mentally contrasting fantasy with reality can be an effective behavior change technique. This is because mental contrasting energizes people to overcome obstacles that stand in the way of their desired future. The present study...