National Research Council's research while affiliated with Columbia University and other places
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Publications (727)
The light-duty vehicle fleet is expected to undergo substantial technological changes over the next several decades. New powertrain designs, alternative fuels, advanced materials and significant changes to the vehicle body are being driven by increasingly stringent fuel economy and greenhouse gas emission standards. By the end of the next decade, c...
An Evaluation of the Public Schools of the District of Columbia is a comprehensive five-year summative evaluation report for Phase Two of an initiative to evaluate the District of Columbia's public schools. Consistent with the recommendations in the 2011 report A Plan for Evaluating the District of Columbia's Public Schools, this new report describ...
The National Flood Insurance Program (NFIP) is housed within the Federal Emergency Management Agency (FEMA) and offers insurance policies that are marketed and sold through private insurers, but with the risks borne by the U.S. federal government. NFIP's primary goals are to ensure affordable insurance premiums, secure widespread community particip...
Energy and mineral resources are essential for the nation's fundamental functions, its economy, and security. Nonfuel minerals are essential for the existence and operations of products that are used by people every day and are provided by various sectors of the mining industry. Energy in the United States is provided from a variety of resources in...
Floods take a heavy toll on society, costing lives, damaging buildings and property, disrupting livelihoods, and sometimes necessitating federal disaster relief, which has risen to record levels in recent years. The National Flood Insurance Program (NFIP) was created in 1968 to reduce the flood risk to individuals and their reliance on federal disa...
The Federal Aviation Administration (FAA) is currently undertaking a broad program known as Next Generation Air Transportation System (NextGen) to develop, introduce, and certify new technologies into the National Airspace System. NextGen is a fundamentally transformative change that is being implemented incrementally over a period of many years. C...
Diplomacy for the 21st Century recommends steps that the Department of State should embrace to take full advantage of the leading science and technology (S&T) capabilities of the United States. These capabilities provide the department with many opportunities to promote a variety of the interests of the United States and its allies in a rapidly cha...
The tremendous progress in biology over the last half century - from Watson and Crick's elucidation of the structure of DNA to today's astonishing, rapid progress in the field of synthetic biology - has positioned us for significant innovation in chemical production. New bio-based chemicals, improved public health through improved drugs and diagnos...
In the past few years, interest in plug-in electric vehicles (PEVs) has grown. Advances in battery and other technologies, new federal standards for carbon-dioxide emissions and fuel economy, state zero-emission-vehicle requirements, and the current administration's goal of putting millions of alternative-fuel vehicles on the road have all highligh...
The growing problem of changing environmental conditions caused by climate destabilization is well recognized as one of the defining issues of our time. The root problem is greenhouse gas emissions, and the fundamental solution is curbing those emissions. Climate geoengineering has often been considered to be a "last-ditch" response to climate chan...
The Next Generation Air Transportation System's (NextGen) goal is the transformation of the U.S. national airspace system through programs and initiatives that could make it possible to shorten routes, navigate better around weather, save time and fuel, reduce delays, and improve capabilities for monitoring and managing of aircraft. A Review of the...
The signals are everywhere that our planet is experiencing significant climate change. It is clear that we need to reduce the emissions of carbon dioxide and other greenhouse gases from our atmosphere if we want to avoid greatly increased risk of damage from climate change. Aggressively pursuing a program of emissions abatement or mitigation will s...
The Florida Everglades is a large and diverse aquatic ecosystem that has been greatly altered over the past century by an extensive water control infrastructure designed to increase agricultural and urban economic productivity. The Comprehensive Everglades Restoration Plan (CERP), launched in 2000, is a joint effort led by the state and federal gov...
The Edwards Aquifer in south-central Texas is the primary source of water for one of the fastest growing cities in the United States, San Antonio, and it also supplies irrigation water to thousands of farmers and livestock operators. It is also is the source water for several springs and rivers, including the two largest freshwater springs in Texas...
The massive increase in digital information in the last decade has created new requirements for institutional and technological structures and workforce skills. Preparing the Workforce for Digital Curation focuses on education and training needs to meet the demands for access to and meaningful use of digital information, now and in the future. This...
The National Research Council's Army Research Laboratory Technical Assessment Board (ARLTAB) provides biennial assessments of the scientific and technical quality of the research, development, and analysis programs at the Army Research Laboratory, focusing on ballistics sciences, human sciences, information sciences, materials sciences, and mechani...
On October 17, 2014, spurred by incidents at U.S. government laboratories that raised serious biosafety concerns, the United States government launched a one-year deliberative process to address the continuing controversy surrounding so-called "gain-of-function" (GOF) research on respiratory pathogens with pandemic potential. The gain of function c...
Every year, the U.S. Army must select from an applicant pool in the hundreds of thousands to meet annual enlistment targets, currently numbering in the tens of thousands of new soldiers. A critical component of the selection process for enlisted service members is the formal assessments administered to applicants to determine their performance pote...
By 2050 the world's population is projected to grow by one-third, reaching between 9 and 10 billion. With globalization and expected growth in global affluence, a substantial increase in per capita meat, dairy, and fish consumption is also anticipated. The demand for calories from animal products will nearly double, highlighting the critical import...
One of the last two sites with chemical munitions and chemical materiel is the Pueblo Chemical Depot in Pueblo, Colorado. The stockpile at this location consists of about 800,000 projectiles and mortars, all of which are filled with the chemical agent mustard. Under the direction of the Assembled Chemical Weapons Alternative Program (ACWA), the Arm...
The Bulk Collection of Signals Intelligence: Technical Options study is a result of an activity called for in Presidential Policy Directive 28 (PPD-28), issued by President Obama in January 2014, to evaluate U.S. signals intelligence practices. The directive instructed the Office of the Director of National Intelligence (ODNI) to produce a report w...
A high percentage of defense systems fail to meet their reliability requirements. This is a serious problem for the U.S. Department of Defense (DOD), as well as the nation. Those systems are not only less likely to successfully carry out their intended missions, but they also could endanger the lives of the operators. Furthermore, reliability failu...
The California Department of Pesticide Regulation(DPR)conducts human health risk assessments as part of its mission to ensure the protection of workers and public health in the state. The risk assessments identify potential health hazards posed by pesticides, characterize dose-response relationships, and estimate exposure to characterize potential...
Aligning the Governance Structure of the NNSA Laboratories to Meet 21st Century National Security Challenges is an independent assessment regarding the transition of the National Nuclear Security Administration (NNSA) laboratories - Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Sandia National Laboratories - to multiag...
The American Community Survey (ACS) was conceptualized as a replacement to the census long form, which collected detailed population and housing data from a sample of the U.S. population, once a decade, as part of the decennial census operations. The long form was traditionally the main source of socio-economic information for areas below the natio...
Eyewitnesses play an important role in criminal cases when they can identify culprits. Estimates suggest that tens of thousands of eyewitnesses make identifications in criminal investigations each year. Research on factors that affect the accuracy of eyewitness identification procedures has given us an increasingly clear picture of how identificati...
The undergraduate years are a turning point in producing scientifically literate citizens and future scientists and engineers. Evidence from research about how students learn science and engineering shows that teaching strategies that motivate and engage students will improve their learning. So how do students best learn science and engineering? Ar...
The mission of the Engineering Laboratory of the National Institute of Standards and Technology (NIST) is to promote U.S. innovation and industrial competitiveness through measurement science and standards for technology-intensive manufacturing, construction, and cyberphysical systems in ways that enhance economic prosperity and improve the quality...
The National Institute of Standards and Technology's (NIST's) Material Measurement Laboratory (MML) is our nation's reference laboratory for measurements in the chemical, biological, and materials sciences and engineering. Staff of the MML develop state-of-the-art measurement techniques and conduct fundamental research related to measuring the comp...
Since the early 1960s, the U.S. strategic nuclear posture has been composed of a triad of nuclear-certified long-range bombers, intercontinental ballistic missiles, and submarine-launched ballistic missiles. Since the early 1970s, U.S. nuclear forces have been subject to strategic arms control agreements. The large numbers and diversified nature of...
As a follow-up to the 2013 report Using Science to Improve the Wild Horse and Burro Program: A Way Forward, this letter report reviews research project proposals submitted to the Bureau of Land Management and aimed at developing new or refining existing techniques and establishing protocols for the contraception or permanent sterilization of either...
The United States embarked on bold polices to enhance its food and agricultural system during the last half of the 19th century, investing first in the education of people and soon thereafter in research and discovery programs aimed at acquiring new knowledge needed to address the complex challenges of feeding a growing and hungry nation. Those pol...
In order to conduct operations successfully and defend its capabilities against all warfighting domains, many have warned the Department of Defense (DoD) of the severity of the cyber threat and called for greater attention to defending against potential cyber attacks. For several years, many within and outside DoD have called for even greater atten...
The mission of the United States Army is to fight and win our nation's wars by providing prompt, sustained land dominance across the full range of military operations and spectrum of conflict in support of combatant commanders. Accomplishing this mission rests on the ability of the Army to equip and move its forces to the battle and sustain them wh...
It is probably only a matter of time before we witness the next event in which large numbers of people are exposed to ionizing radiation. In the past, planning a response to such an occurrence would have likely focused on the management of casualties from high-dose exposure. However, more recently, a different threat has come to the fore: accidenta...
Digital curation is in demand and will be in demand across many sectors, from scientific research to business, health care, and cultural expression. Current demand is difficult to ascertain precisely, because of the dispersed nature of digital curation activities undertaken by many different actors in a broad range of organizational settings and in...
Analysis of Cancer Risks in Populations near Nuclear Facilities is a pilot study requested by the United States Nuclear Regulatory Commission (USNRC) to assess the risk of cancer near nuclear facilities in the United States. This effort is being carried out in two phases. The Phase 1 study recommended two study designs appropriate for assessing can...
Many national initiatives in K-12 science, technology, engineering, and mathematics (STEM) education have emphasized the connections between teachers and improved student learning. Much of the discussion surrounding these initiatives has focused on the preparation, professional development, evaluation, compensation, and career advancement of teache...
Hurricane- and coastal-storm-related losses have increased substantially during the past century, largely due to increases in population and development in the most susceptible coastal areas. Climate change poses additional threats to coastal communities from sea level rise and possible increases in strength of the largest hurricanes. Several large...
The development and application of technology has been an essential part of U.S. airpower, leading to a century of air supremacy. But that developmental path has rarely been straight, and it has never been smooth. Only the extraordinary efforts of exceptional leadership - in the Air Forces and the wider Department of Defense, in science and in indu...
Advanced computing capabilities are used to tackle a rapidly growing range of challenging science and engineering problems, many of which are compute- and data-intensive as well. Demand for advanced computing has been growing for all types and capabilities of systems, from large numbers of single commodity nodes to jobs requiring thousands of cores...
In the past decade, a number of state, local, and tribal jurisdictions have begun to take significant steps to overhaul their juvenile justice systems - for example, reducing the use of juvenile detention and out-of-home placement, bringing greater attention to racial and ethnic disparities, looking for ways to engage affected families in the proce...
People's bonds, associations and networks - as well as the civil, political, and institutional characteristics of the society in which they live - can be powerful drivers affecting the quality of life among a community's, a city's, or a nation's inhabitants and their ability to achieve both individual and societal goals. Civic engagement, social co...
Medium- and heavy-duty trucks, motor coaches, and transit buses - collectively, "medium- and heavy-duty vehicles", or MHDVs - are used in every sector of the economy. The fuel consumption and greenhouse gas emissions of MHDVs have become a focus of legislative and regulatory action in the past few years. Reducing the Fuel Consumption and Greenhouse...
The United States has publicly funded its human spaceflight program on a continuous basis for more than a half-century, through three wars and a half-dozen recessions, from the early Mercury and Gemini suborbital and Earth orbital missions, to the lunar landings, and thence to the first reusable winged crewed spaceplane that the United States opera...
Review of Army Research Laboratory Programs for Historically Black Colleges and Universities and Minority Institutions examines the ways in which historically black colleges and universities and minority institutions have used the Army Research Laboratory (ARL) funds to enhance the science, technology, engineering, and mathematics (STEM) programs a...
Created in 1982 through the Small Business Innovation Development Act, the Small Business Innovation Research (SBIR) program remains the nation's single largest innovation program for small business. The SBIR program offers competitive awards to support the development and commercialization of innovative technologies by small private-sector busines...
Additive manufacturing has the potential to positively affect human spaceflight operations by enabling the in-orbit manufacture of replacement parts and tools, which could reduce existing logistics requirements for the International Space Station and future long-duration human space missions. The benefits of in-space additive manufacturing for robo...
The Everglades ecosystem is vast, stretching more than 200 miles from Orlando to Florida Bay, and Everglades National Park is but a part located at the southern end. During the 19th and 20th centuries, the historical Everglades has been reduced to half of its original size, and what remains is not the pristine ecosystem many image it to be, but one...
For over a century, field stations have been important entryways for scientists to study and make important discoveries about the natural world. They are centers of research, conservation, education, and public outreach, often embedded in natural environments that range from remote to densely populated urban locations. Because they lack traditional...
In its current strategic plan, the U.S. Environmental Protection Agency (EPA) describes a cross-agency strategy to advance sustainable environmental outcomes and optimize economic and social outcomes through Agency decisions and actions. Sustainability has evolved from an aspiration to a growing body of practices. The evolution includes a transitio...
Science, technology, engineering, and mathematics (STEM) permeate the modern world. The jobs people do, the foods they eat, the vehicles in which they travel, the information they receive, the medicines they take, and many other facets of modern life are constantly changing as STEM knowledge steadily accumulates. Yet STEM education in the United St...
Many people in the United States are exposed to styrene. Sources of environmental exposure included food (from migration of styrene from polymer packaging materials), cigarette smoke, vehicle exhaust and other forms of combustion and incineration of styrene polymers. Occupational exposure to humans can occur during the industrial processing of styr...
The National Children's Study (NCS) was authorized by the Children's Health Act of 2000 and is being implemented by a dedicated Program Office in the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD). The NCS is planned to be a longitudinal observational birth cohort study to evaluate the effects of chronic and...
Since the 1950s, under congressional mandate, the U.S. National Science Foundation (NSF) - through its National Center for Science and Engineering Statistics (NCSES) and predecessor agencies - has produced regularly updated measures of research and development expenditures, employment and training in science and engineering, and other indicators of...
The United States Army faces a variety of challenges to maintain a ready and capable force into the future. Missions are increasingly diverse, ranging from combat and counterinsurgency to negotiation, reconstruction, and stability operations, and require a variety of personnel and skill sets to execute. Missions often demand rapid decision-making a...
U.S. Arctic waters north of the Bering Strait and west of the Canadian border encompass a vast area that is usually ice covered for much of the year, but is increasingly experiencing longer periods and larger areas of open water due to climate change. Sparsely inhabited with a wide variety of ecosystems found nowhere else, this region is vulnerable...
According to recent reports, the United States currently accounts for less than one-third of global research and development spending, and it is projected that this fraction will decline to 18% by 2050. These statistics, compounded by the recognition that the United States no longer maintains technological superiority across all research fields, hi...
Over the last two decades, computers have become omnipresent in daily life. Their increased power and accessibility have enabled the accumulation, organization, and analysis of massive amounts of data. These data, in turn, have been transformed into practical knowledge that can be applied to simple and complex decision making alike. In many of toda...
The United States military is arguably the most intensely technological, complex enterprise in existence. When compared to the gross domestic products of other countries, the Department of Defense (DoD) budget ranks above all but about 20 nations. If viewed as a company, it would be the largest globally with the most employees. Major investments in...
Review of the National Science Foundation's Division on Atmospheric and Geospace Sciences Draft Goals and Objectives Documents is a letter report by an ad hoc committee reviewing the AGS draft goals and objectives. It addresses the following questions: Are the goals and objectives clear and appropriate? Are there any content areas missing from the...
Potential health effects from chemicals that disrupt endocrine function pose an environmental health concern because of their ability to interfere with normal hormone function in human and wildlife populations. The endocrine system regulates biological processes throughout the body and is sensitive to small changes in hormone concentrations. Endocr...
Evaluation of the Implementation of WFIRST in the Context of New Worlds, New Horizons in Astronomy and Astrophysics assesses whether the proposed Astrophysics Focused Telescope Assets (AFTA) design reference mission described in the April 30, 2013 report of the AFTA Science Definition Team (SDT), WFIRST-2.4, is responsive to the overall strategy to...
Combat helmets have evolved considerably over the years from those used in World War I to today's Advanced Combat Helmet. One of the key advances was the development of aramid fibers in the 1960s, which led to today's Kevlar-based helmets. The Department of Defense is continuing to invest in research to improve helmet performance, through better de...
The National Research Council's Army Research Laboratory Technical Assessment Board provides biennial assessments of the scientific and technical quality of the research, development, and analysis programs at the Army Research Laboratory, focusing on ballistics sciences, human sciences, information sciences, materials sciences, and mechanical scien...
Like most areas of scholarship, mathematics is a cumulative discipline: new research is reliant on well-organized and well-curated literature. Because of the precise definitions and structures within mathematics, today's information technologies and machine learning tools provide an opportunity to further organize and enhance discoverability of the...
Each year, child protective services receive reports of child abuse and neglect involving six million children, and many more go unreported. The long-term human and fiscal consequences of child abuse and neglect are not relegated to the victims themselves -- they also impact their families, future relationships, and society. In 1993, the National R...
In today's world, the range of technologies with the potential to threaten the security of U.S. military forces is extremely broad. These include developments in explosive materials, sensors, control systems, robotics, satellite systems, and computing power, to name just a few. Such technologies have not only enhanced the capabilities of U.S. milit...
Viewed in satellite images as a jagged white coat draped over the top of the globe, the high Arctic appears distant and isolated. But even if you don't live there, don't do business there, and will never travel there, you are closer to the Arctic than you think. Arctic Matters: The Global Connection to Changes in the Arctic is a new educational res...
Emerging and Readily Available Technologies and National Security is a study on the ethical, legal, and societal issues relating to the research on, development of, and use of rapidly changing technologies with low barriers of entry that have potential military application, such as information technologies, synthetic biology, and nanotechnology. Th...
The Next Generation Air Transportation System (NextGen) is an effort begun in 2003 whose goals include improving the capacity, efficiency, and safety of the U.S. air transportation system and also enabling reduction in noise, pollution, and energy use. The Federal Aviation Administration and various stakeholders, including equipment providers, airl...
At the request of the former Chief of Naval Operations, the National Research Council appointed an expert committee to examine U.S. Naval Forces' capabilities for responding to the potential exploitation of small vessels by adversaries. The Department of the Navy determined that the report prepared by the committee is classified in its entirety und...
From a military operational standpoint, surprise is an event or capability that could affect the outcome of a mission or campaign for which preparations are not in place. By definition, it is not possible to truly anticipate surprise. It is only possible to prevent it (in the sense of minimizing the number of possible surprises by appropriate plann...
The Republic of Indonesia, home to over 240 million people, is the world's fourth most populous nation. Ethnically, culturally, and economically diverse, the Indonesian people are broadly dispersed across an archipelago of more than 13,000 islands. Rapid urbanization has given rise to one megacity (Jakarta) and to 10 other major metropolitan areas....
A letter dated December 21, 2011, to National Academy of Sciences President Dr. Ralph Cicerone from the Chief of Naval Operations, ADM Jonathan W. Greenert, U.S. Navy, requested that the National Research Council's (NRC's) Naval Studies Board (NSB) conduct a study to examine the issues surrounding capability surprise-both operationally and technica...
The National Nanotechnology Initiative (NNI) is a multiagency, multidisciplinary federal initiative comprising a collection of research programs and other activities funded by the participating agencies and linked by the vision of "a future in which the ability to understand and control matter at the nanoscale leads to a revolution in technology an...
Best Available and Safest Technologies for Offshore Oil and Gas Operations: Options for Implementation explores a range of options for improving the implementation of the U.S. Department of the Interior's congressional mandate to require the use of best available and safety technologies in offshore oil and gas operations. In the Outer Continental S...
The Global Nuclear Detection Architecture (GNDA) is described as a worldwide network of sensors, telecommunications, and personnel, with the supporting information exchanges, programs, and protocols that serve to detect, analyze, and report on nuclear and radiological materials that are out of regulatory control. The Domestic Nuclear Detection Offi...
In 1972 NASA launched the Earth Resources Technology Satellite (ETRS), now known as Landsat 1, and on February 11, 2013 launched Landsat 8. Currently the United States has collected 40 continuous years of satellite records of land remote sensing data from satellites similar to these. Even though this data is valuable to improving many different asp...
The Committee to Assess the Current Status and Future Direction of High Magnetic Field Science in the United States was convened by the National Research Council in response to a request by the National Science Foundation. This report answers three questions: (1) What is the current state of high-field magnet science, engineering, and technology in...
Despite the increase in funding for research and the rising numbers of peer-reviewed publications over the past decade that address the environmental, health, and safety aspects of engineered nanomaterials (ENMs), uncertainty about the implications of potential exposures of consumers, workers, and ecosystems to these materials persists. Consumers a...
The US Environmental Protection Agency (EPA) Integrated Risk Information System (IRIS) program develops toxicologic assessments of environmental contaminants. IRIS assessments provide hazard identification and dose-response assessment information. The information is then used in conjunction with exposure information to characterize risks to public...
The Bureau of Safety and Environmental Enforcement (BSEE) enforces compliance with oil spill response requirements for facilities located seaward of the coast line. It commissioned Genwest Systems, Inc., to assess the existing planning standard for response to offshore oil spills with mechanical oil skimming systems, known as the Effective Daily Re...
The U.S. veterinary medical profession contributes to society in diverse ways, from developing drugs and protecting the food supply to treating companion animals and investigating animal diseases in the wild. In a study of the issues related to the veterinary medical workforce, including demographics, workforce supply, trends affecting job availabi...
Assessment of Supercritical Water Oxidation System Testing for the Blue Grass Chemical Agent Destruction Pilot Plant reviews and evaluates the results of the tests conducted on one of the SCWO units to be provided to Blue Grass Chemical Agent Destruction Pilot Plant. The Army Element, Assembled Chemical Weapons Alternatives (ACWA) is responsible fo...
Patent Challenges for Standard-Setting in the Global Economy: Lessons from Information and Communication Technology examines how leading national and multinational standard-setting organizations (SSOs) address patent disclosures, licensing terms, transfers of patent ownership, and other issues that arise in connection with developing technical stan...
In 2010, more than 105,000 people were injured or killed in the United States as the result of a firearm-related incident. Recent, highly publicized, tragic mass shootings in Newtown, CT; Aurora, CO; Oak Creek, WI; and Tucson, AZ, have sharpened the American public's interest in protecting our children and communities from the harmful effects of fi...
Professionalizing the Nation's Cybersecurity Workforce? Criteria for Decision-Making considers approaches to increasing the professionalization of the nation's cybersecurity workforce. This report examines workforce requirements for cybersecurity and the segments and job functions in which professionalization is most needed; the role of assessment...
The Manufacturing Extension Partnership (MEP) - a program of the U.S. Department of Commerce's National Institute of Standards and Technology - has sought for more than two decades to strengthen American manufacturing. It is a national network of affiliated manufacturing extension centers and field offices located throughout all fifty states and Pu...
For many household surveys in the United States, responses rates have been steadily declining for at least the past two decades. A similar decline in survey response can be observed in all wealthy countries. Efforts to raise response rates have used such strategies as monetary incentives or repeated attempts to contact sample members and obtain com...
The three National Nuclear Security Administration (NNSA) national security laboratories--Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL)--are a major component of the U.S. government's laboratory complex and of the national science and technology base. These laboratories...
Data mining of massive data sets is transforming the way we think about crisis response, marketing, entertainment, cybersecurity and national intelligence. Collections of documents, images, videos, and networks are being thought of not merely as bit strings to be stored, indexed, and retrieved, but as potential sources of discovery and knowledge, r...
From the interior of the Sun, to the upper atmosphere and near-space environment of Earth, and outward to a region far beyond Pluto where the Sun's influence wanes, advances during the past decade in space physics and solar physics--the disciplines NASA refers to as heliophysics--have yielded spectacular insights into the phenomena that affect our...
The three National Security Laboratories--Los Alamos National Laboratory (LANL), Sandia National Laboratories (SNL), and Lawrence Livermore National Laboratory (LLNL)--are managed by private-sector entities under contract to the National Nuclear Security Administration (NNSA). The FY2010 Defense Authorization Act mandated that NNSA task the Nationa...
In the past several years, some energy technologies that inject or extract fluid from the Earth, such as oil and gas development and geothermal energy development, have been found or suspected to cause seismic events, drawing heightened public attention. Although only a very small fraction of injection and extraction activities among the hundreds o...
Solar irradiance is a vital source of energy input for the Earth's climate system and its variability has the potential to mitigate or exacerbate a human-created climate. Maintaining an unbroken record of Total Solar Irradiance (TSI) is critical in resolving ongoing debates regarding the potential role of solar variability in influencing Earth's cl...
Within the Federal Aviation Administration (FAA), the Airway Transportation System Specialists ATSS) maintain and certify the equipment in the National Airspace System (NAS).In fiscal year 2012, Technical Operations had a budget of $1.7B. Thus, Technical Operations includes approximately 19 percent of the total FAA employees and less than 12 percen...
On November 19, 2001 the Transportation Security Administration (TSA) was created as a separate entity within the U.S. Department of Transportation through the Aviation and Transportation Security Act. The act also mandated that all checked baggage on U.S. flights be scanned by explosive detection systems (EDSs) for the presence of threats. These s...
The Federal Emergency Management Agency's (FEMA) Federal Insurance and Mitigation Administration (FIMA) manages the National Flood Insurance Program (NFIP), which is a cornerstone in the U.S. strategy to assist communities to prepare for, mitigate against, and recover from flood disasters. The NFIP was established by Congress with passage of the Na...
Coal mine disasters in the United States are relatively rare events; many of the roughly 50,000 miners underground will never have to evacuate a mine in an emergency during their careers. However, for those that do, the consequences have the potential to be devastating. U.S. mine safety practices have received increased attention in recent years be...
Citations
... Different from the medical applications of dual and multiple-energy CT, which produce more precise images necessary for a better diagnostic [13,14], the forensic use of dual and multiple CT permits the simultaneous determination of the effective atomic number Z e f f and density ρ of controlled material, accurately differentiating explosives from the other organic materials in the luggage. In this regard, it is worth mentioning that densities or effective atomic numbers alone cannot differentiate explosives; this can only be achieved if they are simultaneously used [6,15]. Therefore, there is a strong motivation for the development of automated and noninvasive systems used to control the content of luggage or different parcels before being admitted to shipping or selected for manual examination. ...
... The current recommendation to better understand the outer heliosphere and its interaction with the local ISM, relies on NASA's solar-terrestrial probes, as illustrated by the reference mission IMAP in coordination with the Voyager missions 109 . The structure of the outer heliosphere is important to us because it regulates the CR penetration into near-Earth space and it has a direct role in reducing space radiation and making life possible in our solar system. ...
... The decision-analysis approach follows a Bayesian view of probabilities associated with the possible events, making it an objective measure [62,129]. Inferred mental workload takes into account eye movement activity, cardiac functions (ECG), brain activity (EEG), and Galvanic skin response (GSR) [61]. ...
... One of the most critical issues in the world-wide economy iscrude obtainability and petroleum refining. Numerous types of wastes are generated in the sequence of oil invention, processing, transportation and further use of oil products is a subject to required disposal (Board 2014). Consequently, it is important to have a classification framework that include relevant information, such as type of waste, quantity, treatment, and disposal of waste (Chen et al., 2012) in an environment-friendly way and environmental monitoring in keeping with legal necessities (Clear Seas Centre for Responsible Marine Shipping, 2022). ...
... Possible delays with short time intervals in measurement direction should be taken into account to reduce measurement errors in mobile measurements [33]. The negative effect of GMLiDAR on human health is very low [34,35]. ...
... To describe the biotransformation occurring during intestinal digestion ("what they are" during the passage through the GI tract) and extrapolate the EDPDs, pristine AgNPs and Ag + salts were subjected to a modified version of the consecutive in vitro dissolution assay outlined in Bove et al. [25]. As part of a standardized operating procedure (SOP) developed within the Seventh Framework Programme (FP7) European Union (EU) project, "A common European approach to the regulatory testing of nanomaterials" (NANoREG) [32], the selection of this dissolution assay (and, more generally, the decision to perform all experiments using SOPs when available), was pursued to improve adherence for validated methods, thus promoting data reliability for a possible future benchmarking [33]. For the requirements of this study, the protocol was modified in two ways as reported in Scheme 2. Firstly, the starting concentration of digestible material was increased to 1950 µg/mL to produce a resultant solution with a silver concentration of 10 µg/mL. ...
... This data collection system organized job titles into more than 1,102 occupations as of July 2020 and down to 1016 occupational listings as of June 2021 [3]. As more workers seek to enter the cybersecurity labor force or think of themselves as cybersecurity professionals based on their roles, experience, and specific expertise, some seek activities related to professionalization leading to certifications [4]. Certifications can be driven by an employer's needs and requirements or by the government objectives to manage the workforce and establish a baseline for technical skills verifying federal workforce knowledge through standard certification [5] or to incorporate specific activities, occupations, and work roles into its operations [6]. ...
... To meet future demands, next-generation particle accelerators require much higher magnetic fields. There are several ongoing design studies to upgrade the LHC magnets with HTS whose upper critical field (H c2 ) exceeds 100 T at 4.2 K whereas that of Nb 3 Sn is limited to 23.5 T [3,4]. ...
... Very large-scale text data management and analysis has been one of the frontiers for current and future research (Council, 2016) due to the availability of millions of documents in digital libraries, such as MEDLINE/PubMed (Karami et al., 2019a), and billions of comments and posts in social media such as Facebook and Twitter discussing different issues such as health (Karami and Shaw, 2019;Karami et al., 2018b), organizations (Karami and Collins, 2018), politics (Karami and Elkouri, 2019), and natural disasters (Karami et al., 2019b). While these large datasets provide extremely useful and valuable resources for researchers, there is a need to develop new approaches for processing high dimensional data. ...
... Compared with Ni-Cd or Ni-MH based batteries, these Ni-based chemistries have limitations in terms of energy density (low), efficiency (low), maintenance cost (high), lifecycle (low), and self-discharging issues [92]. Contrarily, Ni-Cd performs with 70-90% efficiency, has moderate energy density (50-75 Wh/kg), higher lifecycles (2000-2500), a 10%/month self-discharging rate, and better temperature tolerances [69, 93,94]. However, both the Cd and Ni chemistries are considered as hazardous substances, and the manufacturing costs of Ni-Cd batteries are also relatively high ($1000/kWh and ten times higher than Pb-acid based batteries). ...
