Assessing the Biological Weapons and Bioterrorism Threat
BIOSECURITY FOR A NEW ERA Lecture Series Biological weapons (BW) have been a significant national security preoccupation for nearly 15 years. The events of September 11 and the anthrax attacks that followed have magnified these concerns by orders of magnitude while shifting the context almost entirely to "bioterrorism." Over the past four years, the federal government has spent nearly $30 billion to counter the anticipated threat. Strangely, these responses took place in the absence of virtuall
Bio-security for a New Era
Secrets: The Ethics of Concealment and the Ethics of Science in Synthetic Biological Research Dr. Laurie Zoloth, Center for Bioethics, Science and Society, Northwestern University Increasingly sophisticated techniques allow for increasing powerful and creative tools of biology to create new or altered forms of life. Such synthetic biology may offer unprecedented avenues for drug development, alternate energy sources, and medical therapeutics. Yet increasing unease also mounts about the possibl
Rus United: State Mercantilism or Imperialism?
Speaker: Kenneth Jowitt, Pres and Maurine Hotchkis Senior Fellow at the Hoover Institution and the Robson Professor of Political Science at the University of California, Berkeley Professor Jowitt examines the current Russian regime and tries to characterize it using a more apt comparative historical model of reference than the overused democracy-autocracy polemic. The Annual Colin Miller Memorial Lecture honors the memory of a journalist and radio and TV producer who was devoted to the Center
NASA KSNN Why do magnets work?
Magnetism is an invisible force felt within the space around a magnet. This space, called the magnetic field, can either attract (pull) or repel (push away) other magnets and some types of metal
NASA CONNECT Mirror, Mirror on the Universe
In NASA CONNECT Mirror, Mirror on the Universe, students discover how algebra and telescopes are used in space exploration and why optics, which is the study of light, is important in astronomy. Students learn about the Hubble Space Telescope, Hubble Deep Field, and how NASA engineers use algebra in their work.
A blackwater river from sea to source: The White Oak River transect
A "virtual field trip" up the White Oak River in southeastern North Carolina, with discussion of how local ecology changes along the way due to decreasing salinity.
Cape Fear Estuaries: From River to Sea
A "virtual field trip" down the estuaries of the Cape Fear River from zero salinity to the ocean, with discussion of how local ecology changes along the way.
Clays of the Piedmont: Origins, recovery, and use
A "virtual field trip" through the North Carolina Piedmont and thousands of years of history explains the origin of Piedmont clays and how clay is made into pottery. With high-resolution photographs.
Elevations and forest types along the Blue Ridge Parkway
A Carolina Environmental Diversity Explorations "virtual field trip" that explores the great diversity of forests in North Carolina's Blue Ridge Mountains.
Evidence of rising sea level: Coastal erosion and plant community changes
A Carolina Environmental Diversity Explorations "virtual field trip" that examines the causes and effects of changes in sea level, both short-term (as a result of storms) and long-term (as a result of climate change).
Forests and fires: The longleaf pine savanna
This Carolina Environmental Diversity Explorations "virtual field trip" examines the role of fire in maintaining the longleaf pine savanna as well as other rare plant communities found in Camp Lejune, North Carolina.
Hurricanes on sandy shorelines: Lessons for development
A Carolina Environmental Diversity Explorations "virtual field trip" that examines the sand sharing system of sedimentary coastlines and the impact of hurricanes on those coastlines and on human development.
Jocassee Gorges: Temperate rain forests of the Blue Ridge
A Carolina Environmental Diversity Explorations "virtual field trip" that explores the geology and botanical diversity of the Jocassee Gorges region of North Carolina's mountains.
Large sand volume barrier islands: Environmental processes and development risks
This Carolina Environmental Diversity Explorations "virtual field trip" explores the nature and structure of barrier islands with large sand volume, on which built structures are relatively well insulated from hurricane damage.
Lonely mountains: The monadnocks of the inner Piedmont
This Carolina Environmental Diversity Explorations "virtual field trip" explores the geology of North Carolina's monadnocks, mountains that rise individually above the surrounding topography.
Natural and human impacts on the northern Outer Banks
This Carolina Environmental Diversity Explorations "virtual field trip" examines how coastal process continuously alter the structure of the Outer Banks, and how humans have adapted to and resisted these changes.
Small sand volume barrier islands: Environmental processes and development risks
This Carolina Environmental Diversity Explorations "virtual field trip" explores the nature and structure of barrier islands with small sand volume — only a few small dunes and no sandy ridges between the beach and the salt marsh. Built structures on these islands are highly susceptible to damage from hurricanes. This trip provides high-resolution photographs of two such islands, Masonboro (which has not been developed) and Topsail (which has been developed). Its companion field trip, Large Sa
Wetlands of the coastal plains
This Carolina Environmental Diversity Explorations "virtual field trip" explores the various wetlands of North Carolina's coastal plain, including the longleaf pine savanna, sandhill scrub, pocosin, pond pine woodland, coastal plain bottomland forest, tidal freshwater marsh, cypress gum swamp, and salt marsh. In each type of wetland, you'll learn about the various plant communities and their adaptations to their environment. You'll also learn how wetlands are formed and why North Carolina has so
Viewing the Periodic Table of the Elements with X-rays
X-rays and x-ray fluorescence are not new subjects to the field of physics. Wilhelm Röntgen discovered x-rays in 1895, and in 1901 he was awarded the very first Nobel Prize in physics for this discovery. Soon after, Charles Glover Barkla discovered that each element has its own characteristic x-ray spectrum. He was awarded a Nobel Prize in physics for this discovery in 1917. Sir William Henry Bragg and his son, Sir William Lawrence Bragg, were then able to experimentally prove that the discrete
Action Potential Experiments
Action Potential Experiments is a demonstration/simulation laboratory for neurophysiology based on the 'sodium theory' as originally formulated and tested by A. L. Hodgkin and his colleagues. The application includes simulations of the original experiments of Hodgkins and his colleagues, and of the classic voltage clamp and patch clamp experiments and an animated illustration of the 'sodium theory' explanation of Nernst potentials for potassium and sodium ions. The student can perform simple ion