Upgrading Undergraduate Biology Education
On many campuses throughout the country, undergraduate biology education is in serious need of an upgrade. During the past few decades, the body of biological knowledge has grown exponentially, and as a research endeavor, the practice of biology has evolved. Education research has also made great strides, revealing many new insights into how students learn and producing effective teaching strategies. But the practice of undergraduate biology education does not reflect these advances. For many students, biology continues to be a laundry list of topics, countless new words and diagrams to memorize, and cookbook experiments to get through, rather than a conceptual understanding of the field and scientific skills. Fortunately, there are three new initiatives for improving the undergraduate biology experience for students, each targeting different segments along the education system continuum. The first of these initiatives focuses on precollege biology teaching and learning. The College Board is making significant revisions to the Advanced Placement (AP) Biology course and exam (http://advancesinap.collegeboard.org/science/biology). Teachers who were hard-pressed to cover the extensive AP Biology course outline in one year will welcome the changes. The revised AP Biology course emphasizes students' application of biological concepts, the use of quantitative reasoning, and the development of scientific skills. The final products will be officially released for use during the 2012&...
This report continues the development of ALIs as a clinical tool in wildlife while systematically testing one possible method for determining an optimal ALI for a particular species. PMID: 32228119 [PubMed - as supplied by publisher]
Authors: Park J, Kim J, Chen Y, Song HC, Chen Y, Zheng M, Surh YJ, Kim UH, Park JW, Joe Y, Chung HT Abstract Oxidative stress is recognised as a key factor that can lead to cellular senescence and aging. Carbon monoxide (CO) is produced by haemoxygenase-1 (HO-1), which exerts cytoprotective effects in aging-related diseases, whereas the effect of CO on cellular senescence and aging has not been elucidated. In the current study, we clearly demonstrated that CO delays the process of cellular senescence and aging through regulation of miR-34a and Sirt1 expression. CO reduced H2O2-induced premature senescence in human ...
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