Blood flow of moving Lumbriculus
Observe blood flow and muscle contractions in each body segment of Lumbriculus variegates (note how blood flows in relation to the worm turning in the capillary tube).
Bee on flower
Bees visit flowering plants to collect nectar so they can store it as honey back at their hives. As a bee visits one flower after another, pollen collects on its entire body and especially on the legs. Bees help pollinate flowers while they collect nectar. This is a mutualistic behavior.
Balance and flux
Ecosystems and populations of organisms within ecosystems function by the principle of balance and flux. Balance can be thought of as a state of equilibrium, or a state of equal changes between two sides. Flux can be thought of as a rate of flow or changes. Even small changes in an ecosystem's or population's balance and flux could lead to disaster.
Celery in pure water
The celery stalks take up the water and continue to live in this environment.
Female Artemia closeup
Close-up full body view of a female Artemia under one quarter-inch in size.
Global Longwave from CERES
CERES stands for Clouds and the Earths Radiant Energy System.
Arctic Ozone from February 1, 2003 through March 30, 2003
This visualization shows the northern hemisphere ozone hole from February 1, 2003 through March 30, 2003.
The Middle East Dust Storm
Dust storms are an every day occurrence in Saudi Arabia. This storm is of an unusual size.
Cloud Cover over Borneo: March 1, 1998
Cloud cover over Borneo for March 1, 1998 superimposed over a topographic image
Numerical Simulation of Magnetic Flux Emerging Through a Model Solar Atmosphere: Density, Magnetic F
This animation is one of a series depicting the results of a two-dimensional ideal magneto-hydrodynamic simulation of magnetic flux emerging through a solar atmosphere. The simulation has a resolution of 300x500 cells and a length scale of 16 Mm x 6.8 Mm. The simulation depicts 1730 seconds in the evolution of the model.
Great Zoom into Siberia
Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves fl
Cumulative Earthquake Activity from 1980 through 1995 (WMS)
This animation shows a cumulative view of earthquake activity for the whole world from 1980 through 1995. Each dot on the image represents the number of earthquakes with magnitude greater than 4.2 that have occurred in a 0.35 by 0.35 degree area of the globe since January 1, 1980. A yellow dot represents 1 or 2 earthquakes, an orange dot represents about 10 earthquakes, and a red dot represents 50 to 200 earthquakes. The background image, if present, shows the topography of the ocean floor. As t
North America NDVI 1993 August
NDVI in North America for August 1993, based off data collected over the 1981-2000 time frame.
After Hurricane Floyd: East Coast Flyover September 16, 1999 from SeaWiFS
Flying up the east coast of the United States from Florida to North Carolina using a SeaWiFS image taken September 16, 1999
Arctic Ozone Hole from Earth Probe TOMS: February 1, 1997 through May 31, 1997
Ozone measurements from Earth Probe TOMS for February 1, 1997 through May 31, 1997 showing the formation of an Arctic ozone hole
Principles of Industrial Hygiene
Principles of Industrial Hygiene provides an introduction to the field of industrial hygiene and to occupational health in general. The instructor focuses on introducing concepts, terminology, and methodology in the practice of industrial hygiene and identifies resource materials. The class would benefit those wishing to pursue a Master's degree in industrial hygiene, those wishing to complete a certificate in occupational health, or for students in allied health fields needing a basic understan
Pharmaceuticals Management for Under-served Populations
Students will be guided to analyze problems and develop strategies based on real world drug management issues including regulations, manufacture, procurement, distribution, safety, policy, financing and the unique aspects of international pharmaceutical trade, the role of the World Trade Organization - Trade-Related Aspects of Intellectual Property Rights (WTO-TRIPS), government, non-governmental organizations (NGOs) and individuals/programs in the selection and use of pharmaceutical products. C
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
Examines health issues, scientific understanding of causes, and possible future approaches to control of the major environmental health problems in industrialized and developing countries. Topics include how the body reacts to environmental pollutants; physical, chemical, and biological agents of environmental contamination; vectors for dissemination (air, water, soil); solid and hazardous waste; susceptible populations; biomarkers and risk analysis; the scientific basis for policy decisions; an
Confronting the Burden of Injuries: A Global Perspective
Confronting the Burden of Injuries- A Global Perspective is a course offered by the Department of International Health and the Department of Health Policy and Management at the Bloomberg School of Public Health, Johns Hopkins University. This course is intended to guide students interested in working on injury control in areas with little to no tradition in injury prevention from a public health perspective. Students will learn to define the injury problem and assess its magnitude; identify data