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Full-Text Articles in Biomedical Engineering and Bioengineering

Studying The Material Properties Of The Embryonic Chicken Heart, Kyra Burnett Jun 2013

Studying The Material Properties Of The Embryonic Chicken Heart, Kyra Burnett

Honors Theses

Congenital heart disease is the number one cause of birth defects in the United States, affecting approximately 40,000 newborns each year. Research has shown that serious structural defects of the heart can occur due to abnormal looping. Looping refers to the positional and morphological changes of the early embryo heart and is divided into different phases. Although progress has been made in identifying the genetic processes behind heart looping, the forces involved with the developmental process are still not fully understood. In this research, the chicken embryo heart was used as the experimental model and certain material properties were characterized. …


The Molecular Genetics Learning Progressions: Revisions And Refinements Based On Empirical Testing In Three 10th Grade Classrooms, Amber Nicole Todd Jan 2013

The Molecular Genetics Learning Progressions: Revisions And Refinements Based On Empirical Testing In Three 10th Grade Classrooms, Amber Nicole Todd

Browse all Theses and Dissertations

In the past few decades, there has been a large push for increasing scientific literacy (AAAS, 1989; AAAS, 1993; Achieve, 2013; NRC, 1996; NRC, 2012), especially in areas that are rapidly advancing, like molecular genetics. Much research has been done on student understandings of molecular genetics and the consensus is that the concepts are difficult both to learn and teach (Fisher, 1992; Horwitz, 1996; Kindfield, 1992; Lewis & Kattmann, 2004; Marbach-Ad & Stavy, 2000; Stewart et al., 2005; Venville & Treagust, 1998; etc.). Two learning progressions in molecular genetics have been produced (Duncan et al., 2009; Roseman et al. 2006), …