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Download full textTall, David – Mathematics Education Research Journal, 2008
This paper focuses on the changes in thinking involved in the transition from school mathematics to formal proof in pure mathematics at university. School mathematics is seen as a combination of visual representations, including geometry and graphs, together with symbolic calculations and manipulations. Pure mathematics in university shifts…
Descriptors: Mathematical Logic, Mathematics Instruction, Mathematical Concepts, College Mathematics
Direct linkAltink, Marieke E.; Arias-Vasquez, Alejandro; Franke, Barbara; Slaats-Willemse, Dorine I. E.; Buschgens, Cathelijne J. M.; Rommelse, Nanda N. J.; Fliers, Ellen A.; Anney, Richard; Brookes, Keeley-Joanne; Chen, Wai; Gill, Michael; Mulligan, Aisling; Sonuga-Barke, Edmund; Thompson, Margaret; Sergeant, Joseph A.; Faraone, Stephen V.; Asherson, Philip; Buitelaar, Jan K. – Journal of Child Psychology and Psychiatry, 2008
Background: The dopamine receptor D4 ("DRD4") 7-repeat allele and maternal smoking during pregnancy are both considered as risk factors in the aetiology of attention deficit hyperactivity disorder (ADHD), but few studies have been conducted on their interactive effects in causing ADHD. The purpose of this study is to examine the gene by…
Descriptors: Siblings, Smoking, Attention Deficit Hyperactivity Disorder, Pregnancy
Scharfenberg, Franz-Josef; Bogner, Franz X.; Klautke, Siegfried – International Journal of Science Education, 2008
Our research objectives focused on monitoring (i) students' activities during experimental teaching phases in an out-of-school gene technology laboratory, and (ii) potential relationships with variables such as work group size and cognitive achievement. Altogether, we videotaped 20 work groups of A-level 12th graders (n = 67) by continuous…
Descriptors: Science Laboratories, Genetics, Science Activities, Videotape Recordings
Michel, George F. – European Journal of Developmental Science, 2007
Gottlieb used naturalistic observations of normally occurring events in the life history of individuals for the purpose of discovering the role of experience in the development of species-typical behaviors. His research revealed the impact of self-generated experiences (particularly those experiences that were self-stimulated) in the establishment…
Descriptors: Behavior Development, Naturalistic Observation, Individual Development, Experience
Oliveira, Guiomar; Ataide, Assuncao; Marques, Carla; Miguel, Teresa S.; Coutinho, Ana Margarida; Mota-Vieira, Luisa; Goncalves, Esmeralda; Lopes, Nazare Mendes; Rodrigues, Vitor; Carmona da Mota, Henrique; Vicente, Astrid Moura – Developmental Medicine & Child Neurology, 2007
The objective of this study was to estimate the prevalence of autistic spectrum disorder (ASD) and identify its clinical characterization, and medical conditions in a paediatric population in Portugal. A school survey was conducted in elementary schools, targeting 332 808 school-aged children in the mainland and 10 910 in the Azores islands.…
Descriptors: Rating Scales, Autism, Foreign Countries, Incidence
Mueller, Melinda M. – American Biology Teacher, 2007
Biological evolution is one of the over-arching concepts recommended for student learning by the "National Science Education Standards." As with all such complex concepts, student understanding of evolution is improved when instruction includes hands-on, inquiry-based activities. However, even authors writing in strong support of teaching…
Descriptors: Science Education, Standards, Evolution, Biology
Saudino, Kimberly J.; Plomin, Robert – Child Development, 2007
Although a negative association between hyperactivity and academic achievement is well documented, little is known about the genetic and/or environmental mechanisms responsible for the association. The present study explored links between parent and teacher ratings of hyperactive behavior problems and teacher-assessed achievement in a sample of…
Descriptors: Behavior Problems, Hyperactivity, Genetics, Academic Achievement
Rodgers, Christopher P. – Bulletin of Science, Technology & Society, 2007
In March 2004, the U.K. government announced its intention to grant limited authorization for the growing of commercial genetically modified (GM) crops. This article reviews the potential liabilities that may arise from GM cropping, for environmental damage and for economic losses claimed by non-GM producers. It considers the application of the…
Descriptors: Foreign Countries, Courts, Genetics, Agronomy
Pramling, Niklas; Saljo, Roger – Scandinavian Journal of Educational Research, 2007
The article reports an empirical study of how authors in popular science magazines attempt to render scientific knowledge intelligible to wide audiences. In bridging the two domains of "popular" and "scientific" knowledge, respectively, metaphor becomes central. We ask the empirical question of what metaphors are used when communicating about…
Descriptors: Figurative Language, Audiences, Genetics, Context Effect
Kopp, Lisa M.; Beauchaine, Theodore P. – Journal of Abnormal Child Psychology, 2007
Comorbid conduct problems (CPs) and depression are observed far more often than expected by chance, which is perplexing given minimal symptom overlap. In this study, relations between parental psychopathology and children's diagnostic status were evaluated to test competing theories of comorbidity. Participants included 180 families with an…
Descriptors: Psychopathology, Antisocial Behavior, Depression (Psychology), Behavior Disorders
Kelly, Kimberly M.; Andrews, James E; Case, Donald O.; Allard, Suzanne L.; Johnson, J. David – Journal of Rural Health, 2007
Context: Research is limited regarding the potential of genetic testing for cancer risk in rural Appalachia. Purpose: This study examined perceptions of genetic testing in a population sample of Kentuckians, with a focus on Appalachian and rural differences. The goals were to examine cultural and psychosocial factors that may predict intentions to…
Descriptors: Decision Making, Testing, Information Seeking, Genealogy
Solomon, Brenda – Exceptional Parent, 2007
The Washington, D.C. suburb of McLean, Virginia is one of the most affluent areas in the United States. It is also a community of rare and remarkable power, where politics, military might, and corporate interests converge to create the perfect environment for successful non-profit efforts. On any given day of the week, there is a charity ball or…
Descriptors: Special Needs Students, Municipalities, Disabilities, Chronic Illness
Yip, Cheng-Wai – Journal of Biological Education, 2007
Extracts of fruit peels contain antioxidants that protect the bacterium "Escherichia coli" against damage induced by ultraviolet light. Antioxidants neutralise free radicals, thus preventing oxidative damage to cells and deoxyribonucleic acid. A high survival rate of UV-exposed cells was observed when grapefruit or grape peel extract was…
Descriptors: Safety, Scientific Methodology, Biology, Statistical Analysis
Fawcett, Angela J; Nicolson, Roderick I – Developmental Medicine & Child Neurology, 2007
The explosion in neuroscientific knowledge has profound implications for education, and we advocate the establishment of the new discipline of "pedagogical neuroscience" designed to combine psychological, medical, and educational perspectives. We propose that specific learning disabilities provide the crucible in which the discipline may be…
Descriptors: Intellectual Disciplines, Learning Disabilities, Dyslexia, Brain
Hanson, Carl; Novilla, Lelinneth; Barnes, Michael; De La Cruz, Natalie; Meacham, Aaron – American Journal of Health Education, 2007
Advances in the field of human genomics have important implications for the prevention of chronic disease. In response to these advancements, public health professionals--including health educators--must become competent in the principles underlying the interface between genomics and the use of family health history. Family health history captures…
Descriptors: Health Education, Prevention, Health Personnel, Public Health
