189,669 research outputs found
Atmospheric detectives: Atlas 2 teacher's guide with activities. For use with middle-school students
Can you imagine doing a science project in space? This is the challenging and exciting situation that researchers experience in Spacelab, the laboratory carried inside the Shuttle. Here, hundreds of kilometers above Earth's surface, the crews of the ATLAS missions scan, probe, and measure concentrations of chemicals and water vapor in Earth's protective bubble. So far, one ATLAS crew has rocketed into the atmosphere, watching many sunrises and sunsets come and go while activating delicate instruments and conducting experiments that monitor the complicated interactions between the Sun, the atmosphere, and Earth. We, the crew of ATLAS 2, will continue this important work aboard the Space Shuttle. Together, we will gather data that will be compared with information from satellites, balloons, and instruments on the ground. As part of the National Aeronautics and Space Administration's (NASA's) contribution to Mission to Planet Earth, ATLAS 2 will help develop a thorough picture of the Sun's output, its interaction with the atmosphere, and the well-being of Earth's middle atmosphere. Because the health of the atmosphere is of vital importance to all Earth's inhabitants, everyone should be part of this investigation. You can be active participants in exciting and vital activities: recycling and practicing other conservation methods and gathering information to learn more about how you can keep our atmosphere healthy now, as students, and in the future as informed citizens, scientists, technicians, and mathematicians
The new space and Earth science information systems at NASA's archive
The on-line interactive systems of the National Space Science Data Center (NSSDC) are examined. The worldwide computer network connections that allow access to NSSDC users are outlined. The services offered by the NSSDC new technology on-line systems are presented, including the IUE request system, Total Ozone Mapping Spectrometer (TOMS) data, and data sets on astrophysics, atmospheric science, land sciences, and space plasma physics. Plans for future increases in the NSSDC data holdings are considered
ChemMatters: Special Issue on NASA's EOS Aura Mission (Sept. 2001)
This EOS-Aura special edition of ChemMatters is the first of four special issues focusing on atmospheric chemistry and the Aura mission. It features articles on global climate change, asthma and air pollution, good and bad ozone, and spectroscopy. ChemMatters is a quarterly publication of the American Chemical Society (ACS) geared to a high school audience. The magazine is designed and written to demystify everyday chemistry. Educational levels: High school
Research and Education in Computational Science and Engineering
Over the past two decades the field of computational science and engineering
(CSE) has penetrated both basic and applied research in academia, industry, and
laboratories to advance discovery, optimize systems, support decision-makers,
and educate the scientific and engineering workforce. Informed by centuries of
theory and experiment, CSE performs computational experiments to answer
questions that neither theory nor experiment alone is equipped to answer. CSE
provides scientists and engineers of all persuasions with algorithmic
inventions and software systems that transcend disciplines and scales. Carried
on a wave of digital technology, CSE brings the power of parallelism to bear on
troves of data. Mathematics-based advanced computing has become a prevalent
means of discovery and innovation in essentially all areas of science,
engineering, technology, and society; and the CSE community is at the core of
this transformation. However, a combination of disruptive
developments---including the architectural complexity of extreme-scale
computing, the data revolution that engulfs the planet, and the specialization
required to follow the applications to new frontiers---is redefining the scope
and reach of the CSE endeavor. This report describes the rapid expansion of CSE
and the challenges to sustaining its bold advances. The report also presents
strategies and directions for CSE research and education for the next decade.Comment: Major revision, to appear in SIAM Revie
The ForMaRE Project - Formal Mathematical Reasoning in Economics
The ForMaRE project applies formal mathematical reasoning to economics. We
seek to increase confidence in economics' theoretical results, to aid in
discovering new results, and to foster interest in formal methods, i.e.
computer-aided reasoning, within economics. To formal methods, we seek to
contribute user experience feedback from new audiences, as well as new
challenge problems. In the first project year, we continued earlier game theory
studies but then focused on auctions, where we are building a toolbox of
formalisations, and have started to study matching and financial risk.
In parallel to conducting research that connects economics and formal
methods, we organise events and provide infrastructure to connect both
communities, from fostering mutual awareness to targeted matchmaking. These
efforts extend beyond economics, towards generally enabling domain experts to
use mechanised reasoning.Comment: Conference on Intelligent Computer Mathematics, 8--12 July, Bath, UK.
Published as number 7961 in Lecture Notes in Artificial Intelligence,
Springe
Learning for the Future: Changing the Culture of Math and Science Education to Ensure a Competitive Workforce
This report argues that improving the math and science skills of our nation's youth is an important step in ensuring and promoting innovation-led economic growth in the coming decades. The report calls for the implementation of a strategic plan that will increase student "demand" for and achievement in mathematics and science
NASA highlights, 1986 - 1988
Highlights of NASA research from 1986 to 1988 are discussed. Topics covered include Space Shuttle flights, understanding the Universe and its origins, understanding the Earth and its environment, air and space transportation, using space to make America more competitive, using space technology an Earth, strengthening America's education in science and technology, the space station, and human exploration of the solar system
News as Surveillance
As inhabitants of the Information Age, we are increasingly aware of the amount and kind of data that technology platforms collect on us. Far less publicized, however, is how much data news organizations collect on us as we read the news online and how they allow third parties to collect that personal data as well. A handful of studies by computer scientists reveal that, as a group, news websites are among the Internet’s worst offenders when it comes to tracking their visitors.
On the one hand, this surveillance is unsurprising. It is capitalism at work. The press’s business model has long been advertising-based. Yet, today this business model raises particular First Amendment concerns. The press, a named beneficiary of the First Amendment and a First Amendment institution, is gathering user reading history. This is a violation of what legal scholars call “intellectual privacy”—a right foundational to our First Amendment free speech rights.
And because of the perpetrator, this surveillance has the potential to cause far-reaching harms. Not only does it injure the individual reader or citizen, it injures society. News consumption helps each of us engage in the democratic process. It is, in fact, practically a prerequisite to our participation. Moreover, for an institution whose success is dependent on its readers’ trust, one that checks abuses of power, this surveillance seems like a special brand of betrayal.
Rather than an attack on journalists or journalism, this Essay is an attack on a particular press business model. It is also a call to grapple with it before the press faces greater public backlash. Originally given as the keynote for the Washburn Law Journal’s symposium, The Future of Cyber Speech, Media, and Privacy, this Essay argues for transforming and diversifying press business models and offers up other suggestions for minimizing the use of news as surveillance
Reliable scientific service compositions
Abstract. Distributed service oriented architectures (SOAs) are increas-ingly used by users, who are insufficiently skilled in the art of distributed system programming. A good example are computational scientists who build large-scale distributed systems using service-oriented Grid comput-ing infrastructures. Computational scientists use these infrastructure to build scientific applications, which are composed from basic Web ser-vices into larger orchestrations using workflow languages, such as the Business Process Execution Language. For these users reliability of the infrastructure is of significant importance and that has to be provided in the presence of hardware or operational failures. The primitives avail-able to achieve such reliability currently leave much to be desired by users who do not necessarily have a strong education in distributed sys-tem construction. We characterise scientific service compositions and the environment they operate in by introducing the notion of global scien-tific BPEL workflows. We outline the threats to the reliability of such workflows and discuss the limited support that available specifications and mechanisms provide to achieve reliability. Furthermore, we propose a line of research to address the identified issues by investigating auto-nomic mechanisms that assist computational scientists in building, exe-cuting and maintaining reliable workflows.
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