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Direct linkCarmeli, Eli; Bachar, Assad; Barchad, Shemuel; Morad, Mohammed; Merrick, Joav – Research in Developmental Disabilities: A Multidisciplinary Journal, 2008
Hypothyroidism (HPO) in humans is widely believed to impair health. The biochemical factors mediating decline in health, however, are poorly elucidated. Pathological consequences of HPO point to a high potential for antioxidant imbalance. The objectives of this study were to investigate the major antioxidants in persons with intellectual…
Descriptors: Mental Retardation, Diseases, Biochemistry, Age Differences
Kohli, Utkarsh; Arora, Sadhna; Kabra, Madhulika; Ramakrishnan, Lakshmy; Gulati, Sheffali; Pandey, Ravindra – Down Syndrome Research and Practice, 2008
Recent studies have evaluated possible links between polymorphisms in maternal folate metabolism genes and Down syndrome. Some of these studies show a significantly increased prevalence of the C677T polymorphism of the 5,10-methylene tetrahydrofolate reductase (NADPH) gene (MTHFR) among mothers who have had babies with Down syndrome. This study…
Descriptors: Foreign Countries, Mothers, Incidence, Down Syndrome
Miranda, Hugo Vicente; Ferreira, Antonio E. N.; Quintas, Alexandre; Cordeiro, Carlos; Freire, Ana Ponces – Biochemistry and Molecular Biology Education, 2008
Enzymology is one of the fundamental areas of biochemistry and involves the study of the structure, kinetics, and regulation of enzyme activity. Research in this area is often conducted with purified enzymes and extrapolated to "in vivo" conditions. The specificity constant, k[subscript S], is the ratio between k[subscript cat] (the catalytic…
Descriptors: Biochemistry, Science Instruction, Science Experiments, Cytology
Szeberenyi, Jozsef – Biochemistry and Molecular Biology Education, 2008
The classic experiment presented in this problem-solving test was designed to identify the template molecules of translation by analyzing the synthesis of phage proteins in "Escherichia coli" cells infected with bacteriophage T4. The work described in this test led to one of the most seminal discoveries of early molecular biology: it dealt a…
Descriptors: Genetics, Biochemistry, Molecular Biology, Problem Solving
McKinney, Brandon C.; Sze, Wilson; White, Jessica A.; Murphy, Geoffrey G. – Learning & Memory, 2008
Using pharmacological approaches, others have suggested that L-type voltage-gated calcium channels (L-VGCCs) mediate both consolidation and extinction of conditioned fear. In the absence of L-VGCC isoform-specific antagonists, we have begun to investigate the subtype-specific role of LVGCCs in consolidation and extinction of conditioned fear…
Descriptors: Animals, Genetics, Fear, Pharmacology
Champagne, Pascale; Li, Caijian – Bulletin of Science, Technology & Society, 2008
This study examines the hydrolysis of lignocellulose extracted from poultry manure for the purpose of investigating low-cost feedstocks for ethanol production while providing an alternative solid waste management strategy for agricultural livestock manures. Poultry manure underwent various pretreatments to enhance subsequent enzymatic hydrolysis…
Descriptors: Wastes, Sanitation, Animals, Energy
Florida, Jennifer – Journal of Computers in Mathematics and Science Teaching, 2012
The study deals with the development of an analogy-integrated e-learning module on Cellular Respiration, which is intended to facilitate conceptual understanding of students with different brain hemisphere dominance and learning styles. The module includes eight analogies originally conceptualized following the specific steps used to prepare…
Descriptors: Foreign Countries, Cognitive Style, Learning Modules, Biochemistry
Marquard, Robert D.; Steinback, Rebecca – American Biology Teacher, 2009
Major advances in fundamental science are developed using model systems. Classic examples of model systems include Mendel's work with the common garden pea ("Pisium sativa"), classic inheritance work by Morgan with the fruit fly ("Drosophila"), developmental studies with the nematode ("C. elegans"), and transposable elements in maize ("Zea…
Descriptors: Biology, Biochemistry, Science Curriculum, Plants (Botany)
Millard, Julie T. – Journal of Chemical Education, 2009
Several case studies from popular television medical dramas are described for use in an undergraduate biochemistry course. These cases, which illustrate fundamental principles of biochemistry, are used as the basis for problems that can be discussed further in small groups. Medical cases provide an interesting context for biochemistry with video…
Descriptors: Biochemistry, Case Studies, Television, Drama
Davies, Patrick T.; Sturge-Apple, Melissa L.; Cicchetti, Dante; Manning, Liviah G.; Zale, Emily – Journal of Child Psychology and Psychiatry, 2009
Background: This paper examined children's fearful, sad, and angry reactivity to interparental conflict as mediators of associations between their exposure to interparental aggression and physiological functioning. Methods: Participants included 200 toddlers and their mothers. Assessments of interparental aggression and children's emotional…
Descriptors: Conflict, Toddlers, Parent Child Relationship, Interviews
Sonuga-Barke, Edmund J. S.; Oades, Robert D.; Psychogiou, Lamprini; Chen, Wai; Franke, Barbara; Buitelaar, Jan; Banaschewski, Tobias; Ebstein, Richard P.; Gil, Michael; Anney, Richard; Miranda, Ana; Roeyers, Herbert; Rothenberger, Aribert; Sergeant, Joseph; Steinhausen, Hans Christoph; Thompson, Margaret; Asherson, Philip; Faraone, Stephen V. – Journal of Child Psychology and Psychiatry, 2009
Background: Mothers' positive emotions expressed about their children with attention deficit/hyperactivity disorder (ADHD) are associated with a reduced likelihood of comorbid conduct problems (CP). We examined whether this association with CP, and one with emotional problems (EMO), is moderated by variants within three genes, previously reported…
Descriptors: Emotional Problems, Hyperactivity, Attention Deficit Disorders, Patients
Arentoft, Alyssa; Sweat, Victoria; Starr, Vanessa; Oliver, Stephen; Hassenstab, Jason; Bruehl, Hannah; Tirsi, Aziz; Javier, Elizabeth; McHugh, Pauline F.; Convit, Antonio – Brain and Cognition, 2009
Brain-derived neurotrophic factor (BDNF) plays a regulatory role in neuronal differentiation and synaptic plasticity and has been linked to glucose regulation and cognition. Associations among plasma BDNF, cognition, and insulin function were explored. Forty-one participants with impaired insulin function (IIF), ranging from insulin resistance to…
Descriptors: Females, Diabetes, Memory, Adults
de Schipper, Elles J.; Riksen-Walraven, J. Marianne; Geurts, Sabine A. E.; de Weerth, Carolina – Early Childhood Research Quarterly, 2009
The present study examined whether stress in professional caregivers--as reflected in salivary cortisol levels--is related to the quality of their caregiving behavior. The 221 professional female caregivers in 64 child care centers were observed in three different situations and saliva samples were taken three times during the morning. Results…
Descriptors: Caregivers, Child Care Centers, Child Care, Biochemistry
Neighbors, Clayton; Lee, Christine M.; Lewis, Melissa A.; Fossos, Nicole; Walter, Theresa – Journal of Consulting and Clinical Psychology, 2009
This article presents an initial randomized controlled trial of an event-specific prevention intervention. Participants included 295 college students (41.69% male, 58.31% female) who intended to consume 2 or more drinks on their 21st birthday. Participants completed a screening/baseline assessment approximately 1 week before they turned 21 and…
Descriptors: Feedback (Response), Intervention, Prevention, Drinking
Schonborn, Konrad J.; Anderson, Trevor R. – International Journal of Science Education, 2009
The aim of this research was to develop a model of factors affecting students' ability to interpret external representations (ERs) in biochemistry. The study was qualitative in design and was guided by the modelling framework of Justi and Gilbert. Application of the process outlined by the framework, and consultation with relevant literature, led…
Descriptors: Academic Achievement, Biochemistry, Models, Foreign Countries
