Setting Goals, Building Solutions
In this lesson, students consider the value of setting goals for themselves and for their community, thinking critically about the idea of defining community and shared interests and concerns. This is an introduction to the concepts that underlie the Millennium Development Goals.
The simulation program Logistic Growth provides the user with a number of ways to graphically analyze, interpret, and understand the behavior of the logistic growth equation and minimum density limited logistic growth equation. The second simulation program allows users to generate a binomial distribution model of blending inheritance.
This text manual introduces statistical analysis and its underlying philosophy, enabling students to understand how to describe the confidence they have in their analysis. Statistical analysis is one of the most widely used, and abused, techniques in the biological sciences. Statistics are ostensibly used to allow an investigator to be objective. That is, the researcher uses statistical tests to determine whether or not his/her hypothesis is supported by the data collected. Unfortunately, the
Learning to Think Mathematically
Concerned that most students leave college thinking of mathematics as a fixed body of knowledge to be memorized, Cooperstein designed a new course to help students learn to think mathematically for themselves. This website serves as a course portfolio that documents the new class, Introduction to Mathematical Problem Solving. The principal activity in the class involved students working on and discussing novel problems which required them to formulate experiments, work out cases, look for patter
Detection of Genetically Modified Foods
Genetically modified foods are often in the news and widely grown in the United States. Three US government agencies (USDA, FDA, and EPA) work to regulate the introduction and production of genetically modified foods. These crops can provide agricultural, ecological and nutritional benefits, but there are also potential risks to the environment and consumers. As consumers and public interest groups around the world have become aware of these risks, there has been a call for more explicit product
An Introduction to DNA: Spectrophotometry, Degradation, and the 'Frankengel' Experiment
In this laboratory students perform three exercises as an introduction to the basics of handling and analyzing DNA. In the first, they expose circular plasmid, linear phage, and high molecular weight genomic DNA samples to a variety of physical, thermal, chemical, and enzymatic conditions that might be expected to affect DNA integrity. The DNA's are analyzed by electrophoresis on a group agarose gel. In the second, they pour and reconstruct a "Frankengel" (a gel containing sections with three di
You may have met complex numbers before, but not had experience in manipulating them. This unit gives an accessible introduction to complex numbers, which are very important in science and technology, as well as mathematics. The unit includes definitions, concepts and techniques which will be very helpful and interesting to a wide variety of people with a reasonable background in algebra and trigonometry.
Vegetation Images Show Drought in Western US (WMS)
Satellite data can gauge the health of plants, which is a good indicator of drought. The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are. NDVI images are useful as a measure of drought when compared to "normal" plant health. Scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This animation uses satellite imagery to show changes in vegetation between 1999 and 2003. In 2002, drought had settled a
The Biocentre has produced 'Topics under debate' give a brief introduction to a number of bioethical issues. This page on Reproductive Cloning covers the basic scientific concepts behind reproductive cloning, a chronology of the cloning of animals, and the claims to have cloned humans. The Policy section looks at the development of UK legislation to deal with the issue of reproductive cloning. The Ethics section cover arguments both for and against human cloning, including both principled objec
Introduction to Adobe Director
A set of training videos including commentary and animation made with Camtasia. These videos take you through an introduction to Adobe Director using Lingo.
Ant-like robots create complex glowing patterns
Read more: http://www.newscientist.com/blogs/nstv/2012/01/ant-like-robots-create-complex-glowing-patterns.html
Transport Processes in the Environment, Fall 2004
Introduction to momentum and scalar transport in environmental flows, with emphasis given to river and lake systems. Derivation and solutions to the differential form of mass conservation equations. Topics include: molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed-water exchange, air-water exchange, settling and coagulation, buoyancy-driven flows, and stratification in lakes.
Statistical Reasoning I
Statistical Reasoning in Public Health provides an introduction to selected important topics in biostatistical concepts and reasoning through lectures, exercises, and bulletin board discussions. It represents an introduction to the field and provides a survey of data and data types. Specific topics include tools for describing central tendency and variability in data; methods for performing inference on population means and proportions via sample data; statistical hypothesis testing and its appl
Global Tobacco Control
Provides an introduction to global tobacco control. Presents the health and economic burden of tobacco use worldwide and highlights practical approaches to tobacco prevention, control, surveillance, and evaluation. Examines transnational tobacco control issues, including the following: the interpretation and packaging of epidemiologic evidence for policy makers, the determinants of tobacco addiction, the economics of global tobacco control, tobacco industry strategies, legal foundations for regu
Order Statistic Experiment
This resource consists of a Java applet and expository text. The applet simulates the order statistics of a random sample from a given distribution. The sample size, order, and sampling distribution can be specified.
Tensile test on work hardened copper
Full tensile test of work hardened copper at twenty times actual speed. From TLP: Introduction to mechanical testing, http://www.msm.cam.ac.uk/doitpoms/tlplib/mechanical-testing/results2.php
Watch out for work-at-home scams!
Worldwide Amphibian Declines
AmphibiaWeb is an online system enabling anyone with a Web browser to search and retrieve information relating to amphibian biology and conservation. This site was inspired by the global declines of amphibians, the study of which has been hindered by the lack of multidisplinary studies and a lack of coordination in monitoring, in field studies, and in lab studies. We hope AmphibiaWeb will encourage a shared vision for the study of global amphibian declines and the conservation of remaining amphi
A Very Brief Introduction to Programming with M-Files
This module gives a very brief introduction to some of the concepts necessary to program with m-files.
eBird's goal is to maximize the utility and accessibility of the vast numbers of bird observations made each year by recreational and professional bird watchers. It is amassing one of the largest and fastest growing biodiversity data resources in existence. For example, in 2006, participants reported more than 4.3 million bird observations across North America. The observations of each participant join those of others in an international network of eBird users. eBird then shares these observati