శోధన ఫలితాలు

During and after a disaster, text messages, tweets, Smartphone apps, and social networks, along with 24-hour cable news and other media, deliver relevant information to emergency responders, decision-makers, and the general public. Participants in the workshop "How Communities Can Use Risk Assessmen... మరిన్ని

The St. Johns River is the longest river in Florida, containing extensive freshwater wetlands, numerous large lakes, a wide estuarine channel, and a correspondingly diverse array of native flora and fauna. Water resource management in the river's watershed is the responsibility of the St. Johns Rive... మరిన్ని

This volume draws together our findings from this extensive study while also drawing upon existing research concerning the global competitiveness challenge and the policies and programs that drive it. The report is in two parts. Part I describes the role of innovation in addressing the competitivene... మరిన్ని

This report is the final volume of a three-phase study commissioned by the Director of Operational Test and Evaluation (DOT&E) of the Department of Defense (DoD) to assist in addressing shortcomings that had been reported by the Government Accountability Office (GAO) and the DoD Inspector General in... మరిన్ని

We live in a changing world with multiple and evolving threats to national security, including terrorism, asymmetrical warfare (conflicts between agents with different military powers or tactics), and social unrest. Visually depicting and assessing these threats using imagery and other geographicall... మరిన్ని

Solar irradiance provides the only significant source of energy input to the climate system and its variability has the potential to either mitigate or exacerbate anthropogenic change. Maintaining an unbroken record of Total Solar Irradiance (TSI) is critical in resolving ongoing debates regarding t... మరిన్ని

For more than 100 years, the Coeur d' Alene River Basin has been known as "The Silver Valley" for being one of the most productive silver, lead, and zinc mining areas in the United States. Over time, high levels of metals (including lead, arsenic, cadmium, and zinc) were discovered in the local envi... మరిన్ని

Extremely hazardous substances (EHSs), as defined in the Superfund Amendments and Reauthorization Act of 1986, can be released accidentally as a result of chemical spills, industrial explosions, fires, or accidents involving railroad cars or trucks used in transporting these substances, or intention... మరిన్ని

The committee evaluated submissions received in response to a request for proposals (RFP) for Biomolecular Simulation Time on Anton, a supercomputer specially designed and built by D.E. Shaw Research (DESRES) that allows for dramatically increased molecular dynamics simulations compared to other cur... మరిన్ని

The National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR), with its strong tradition of hiring and developing excellent scientific and technical staff, is one of the leading institutions worldwide in neutron instrumentation, technology, and science. It is a very we... మరిన్ని

Potential health effects of chemicals that disrupt endocrine function pose an environmental health concern about their ability to interfere with normal hormone function in human and wildlife populations. The endocrine system regulates biologic processes throughout the body and can be sensitive to sm... మరిన్ని

Under the leadership of Jonathan Lunine and Mitch Daniels, the Committee on Human Spaceflight completed one of the most challenging studies undertaken by the Space Studies Board and the Aeronautics and Space Engineering Board. In Pathways to Exploration: Rationales and Approaches for a U.S. Program ... మరిన్ని

In April 2002, the U.S. National Academies hosted an interacademy workshop involving participants from the United States and Iran on the topic of Science and Ethics. The explicit purposes of the workshop were (a) to engage important members of the American and Iranian scientific communities in meani... మరిన్ని

This report summarizes a workshop organized by the National Academies’ Roundtable on Science and Technology for Sustainability. The workshop brought together a select group of program managers from the public and private sectors to discuss specific cases of linking knowledge to action in a div... మరిన్ని

This report is intended to provide a brief historical perspective of the evolution of the interacademy program during the past half-century, recognizing that many legacies of the Soviet era continue to influence government approaches in Moscow and Washington and to shape the attitudes of researchers... మరిన్ని

In October 2004 the Research Center for Gastroenterology and Liver Diseases of Shaheed Beheshti University hosted in Tehran an Iranian-American workshop on Food Safety and Surveillance Systems for Foodborne Diseases. The purposes of the workshop were to initiate contacts between Iranian and American... మరిన్ని

How do you get a fourth-grader excited about history? How do you even begin to persuade high school students that mathematical functions are relevant to their everyday lives? In this volume, practical questions that confront every classroom teacher are addressed using the latest exciting research on... మరిన్ని

Because police are the most visible face of government power for most citizens, they are expected to deal effectively with crime and disorder and to be impartial. Producing justice through the fair, and restrained use of their authority. The standards by which the public judges police success have b... మరిన్ని

The U.S. patent system is in an accelerating race with human ingenuity and investments in innovation. In many respects the system has responded with admirable flexibility, but the strain of continual technological change and the greater importance ascribed to patents in a knowledge economy are expos... మరిన్ని

Managing the nation's air quality is a complex undertaking, involving tens of thousands of people in regulating thousands of pollution sources. The authors identify what has worked and what has not, and they offer wide-ranging recommendations for setting future priorities, making difficult choices,... మరిన్ని

As scientists carefully search for clues in the sun and storm patterns from our distant past, they are gradually writing a new history of Earth's climate. Layers extracted from cores drilled into glaciers and ice sheets, sediments collected from the shores of lakes and oceans, and growth rings expos... మరిన్ని

Nonnative Oysters in the Chesapeake Bay discusses the proposed plan to offset the dramatic decline in the bay’s native oysters by introducing disease-resistant reproductive Suminoe oysters from Asia. It suggests this move should be delayed until more is known about the environmental risks, even tho... మరిన్ని

Since the 1960s, testimony by representatives of the Federal Bureau of Investigation in thousands of criminal cases has relied on evidence from Compositional Analysis of Bullet Lead (CABL), a forensic technique that compares the elemental composition of bullets found at a crime scene to the elementa... మరిన్ని

Mirroring a worldwide phenomenon in industrialized nations, the U.S. is experiencing a change in its demographic structure known as population aging. Concern about the aging population tends to focus on the adequacy of Medicare and Social Security, retirement of older Americans, and the need to iden... మరిన్ని

Emerging and currently available technologies offer great promise for helping older adults, even those without serious disabilities, to live healthy, comfortable, and productive lives. What technologies offer the most potential benefit? What challenges must be overcome, what problems must be solved,... మరిన్ని