Computer-based Metacognitive Training: Improving the Diagnostic Expertise of Novice Graduates
The diagnosis problem-solving task can be complex in many professions for which it is central, for example medical diagnosis, farm-management consultancy, etc. This is because often the expert must solve problems and make decisions in complex situations and while under time pressures. The complex nature of the problem situations and the novices lack of advanced metacognitive skills also make it difficult for novices to gain expertise and successfully solve problems in their fields. From the li
This site provides access to more than 4,000 reviewed resources covering 76 biological science topics: agriculture, anatomy, bacteriology, biochemistry, biodiversity, biotechnology, botany, cardiology, cell biology, ecology, environment, evolution, genetics, geography, human biology, immunology, marine biology, microbiology, molecular biology, neurobiology, pathology, pharmacology, physiology, public health, respiratory biology, soil biology, virology, zoology, and others. Registration required.
Acids and Bases: Testing Rocket Cars
A car propelled by the reaction between lemon juice and baking soda has more in common with rockets and jet aircraft than one might think. In this video segment adapted from ZOOM, two cast members demonstrate the power of rocket-propelled vehicles and how to exploit the force produced by the carbon dioxide gas. Grades 3-8.
Acids and Bases: Making a Film Canister Rocket
In this video segment adapted from ZOOM, two cast members demonstrate what happens when vinegar is added to baking soda inside a container. The resulting chemical reaction produces enough carbon dioxide to launch their paper rocket skyward. Recommended for: Grades K-5
Get This Bug Off Me!
It's a natural reaction to be frightened of some insects. Many insects have the ability to harm people, and many insects look very menacing. However, many large insects are not harmful at all. Because it would take several volumes to describe every insect, this publication is intended to distinguish several common insects and insect relatives in Kentucky that are or are not harmful.
The HPLC Doctor
This site provides HPLC troubleshooting tips. It covers common separation problems such as peak fronting or tailing and split peaks and suggests solutions. This site will be most useful for students and practitioners who already have some background knowledge of separation theory. It will be especially helpful for laboratory or research students who are developing a new separation method or are encountering problems with their chromatographic experiments.
2D NMR Spectroscopy
This site provides a concise, but thorough introduction to NMR spectroscopy with a focus on 2D NMR. This site will be most useful for students with some introductory background in NMR. The basic principles of common 2D NMR experiments are presented and illustrated with spectra. Instructors wanting to illustrate the appearance of a TOCSY, NOESY, or COSY spectrum to an undergraduate class will also find useful information on this web site.
The windmill (VM1)
This project requires designing blades for a windmill to be used in lifting weights. The activity involves assembly of the basic windmill as well as construction of, and adjustments to, the blades for optimum performance. Provides knowledge of static and dynamic friction, aerodynamics, and power calculations. Requires an understanding of horsepower and the difference between power and energy. Copyright 2005 International Technology Education Association
Dynamic Remodeling of Individual Nucleosomes Across a Eukaryotic Genome in Response to Transcription
The eukaryotic genome is packaged as chromatin with nucleosomes comprising its basic structural unit, but the detailed structure of chromatin and its dynamic remodeling in terms of individual nucleosome positions has not been completely defined experimentally for any genome. We used ultra-high–throughput sequencing to map the remodeling of individual nucleosomes throughout the yeast genome before and after a physiological perturbation that causes genome-wide transcriptional changes. Nearly 80%
A semaphorin code defines subpopulations of spinal motor neurons during mouse development.
In the spinal cord, motor neurons (MNs) with similar muscle targets and sensory inputs are grouped together into motor pools. To date, relatively little is known about the molecular mechanisms that control the establishment of pool-specific circuitry. Semaphorins, a large family of secreted and cell surface proteins, are important mediators of developmental processes such as axon guidance and cell migration. Here, we used mRNA in situ hybridization to study the expression patterns of semaphorins
Tips for Identifying Poison Ivy
This online article, from Biodiversity Counts, is a tip sheet to help students learn how to spot and avoid poison ivy. Specifically, it covers: an overview of the different varieties of the plant that grow in the Americas and Asia; an illustration of the compound leaf with three leaflets (trifoliate); details about poison ivy's leaf type, leaf arrangement, growth form, flowers, fruits, and relatives; how contact with the plant causes a hypersensitivity reaction in most people; a trick you can tr
The Inquiry Page is a dynamic virtual community where inquiry-based education can be discussed, resources and experiences shared, and innovative approaches explored in a collaborative environment. The site features a growing database of inquiry units, and you can also build your own inquiry units. The database of existing units covers a range of topics from the sciences as well as the humanities. There are pictures of inquiry-based activities and information about other teachers who use inquiry
Fairly Simple Geology Exercises
This is a collection of 18 geology exercises that are designed for teachers with little or no geology background. Each exercise includes relevant background information, complete instructions, student handouts and answer keys. Topics include rock and mineral identification, Bowen's reaction series, crystal models, topographic maps, earthquakes, groundwater, oil exploration, plate tectonics and more.
Eleanor Roosevelt: American Visionary
features photos and artifacts from the life of one of the most dynamic and controversial First Ladies in U.S. history. She was the first First Lady to hold regular press conferences and to routinely travel the nation. She held prestigious positions throughout her life, serving as delegate to the newly founded United Nations, draftee of the Universal Declaration of Human Rights, and chair of the first Presidential Commission on the Status of Women.
The Microbial Biorealm
The Microbial Biorealm is an informational site about microbes written by students for students. Hosted by Kenyon College, the site includes molecular and taxonomic information about microbes from all three domains of life. A comprehensive table lists the properties and characteristics of each domain of life while taxonomy pages list classification, description, significance, genome structure, cell structure, metabolism, ecology, isolation, cultivation, and references specific to individual taxa
This Web site from the National Center for Biotechnology Information (NCBI) offers a set of detailed tutorials to help users make full use of NCBI's bioinformatics tools. The tutorials, which target both new and veteran users, cover NCBI's BLAST and PSI-BLAST, Entrez data retrieval system, Cn3D molecular structure software, and more. Additionally, the Science Primer tutorial offers a "basic introduction to the science underlying NCBI resources" geared more toward the general reader.
20.441J Biomaterials-Tissue Interactions (MIT)
This course covers the principles of materials science and cell biology underlying the design of medical implants, artificial organs, and matrices for tissue engineering. Methods for biomaterials surface characterization and analysis of protein adsorption on biomaterials. Molecular and cellular interactions with biomaterials are analyzed in terms of unit cell processes, such as matrix synthesis, degradation, and contraction. Mechanisms underlying wound healing and tissue remodeling following imp
Metal-containing molecules and DNA
PhD student, Adair Richards, and Professor Alison Rodger from the Molecular Organisation and Assembly in Cells Doctoral Training Centre (MOAC) talk about their work and recent article about binding metal-containing molecules to DNA. Length: 20 minutes
USGS Bedform Sedimentology
This site presents a collection of photographs, short movies, classifications, and computer-generated images for identifying various types of bedforms. Viewing of movies and 3D dynamic computer-modeled bedforms allows students to observe the creation, internal structure, and migration of bedforms through time. Photographs depict these processes in the real world. In addition, software for simulating ripple and dune bedforms and crossbedding is available for a free download. The site also feature
This Dynamic Earth: The Story of Plate Tectonics
In the early 1960s, the emergence of the theory of plate tectonics started a revolution in the earth sciences. Since then, scientists have verified and refined this theory, and now have a much better understanding of how our planet has been shaped by plate-tectonic processes. We now know that, directly or indirectly, plate tectonics influences nearly all geologic processes, past and present. Indeed, the notion that the entire Earth's surface is continually shifting has profoundly changed the way