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  • Spar 20%
    av National Academies Of Sciences Engineeri
    959,-

    Addressing climate change is essential and possible, and it offers a host of benefits - from better public health to new economic opportunities. The United States has a historic opportunity to lead the way in decarbonization by transforming its current energy system to one with net-zero emissions of carbon dioxide. Recent legislation has set the nation on the path to reach its goal of net zero by 2050 in order to avoid the worst consequences of climate change. However, even if implemented as designed, current policy will get the United States only part of the way to its net-zero goal. Accelerating Decarbonization in the United States provides a comprehensive set of actionable recommendations to help policymakers achieve a just and equitable energy transition over the next decade and beyond, including policy, technology, and societal dimensions. This report addresses federal and subnational policy needs to overcome implementation barriers and gaps with a focus on energy justice, workforce development, public health, and public engagement. The report also presents a suite of recommendations for the electricity, transportation, built environment, industrial, fossil fuels, land use, and finance sectors.

  • Spar 16%
    av National Academies Of Sciences Engineeri
    596,-

    "Experiencing poverty during childhood can lead to lasting harmful effects that compromise not only children's health and welfare but can also hinder future opportunities for economic mobility, which may be passed on to future generations. This cycle of economic disadvantage weighs heavily not only on children and families experiencing poverty but also the nation, reducing overall economic output and placing increased burden on the educational, criminal justice, and health care systems. Reducing Intergenerational Poverty examines key drivers of long- term, intergenerational poverty, including the racial disparities and structural factors that contribute to this cycle. The report assesses existing research on the effects on intergenerational poverty of income assistance, education, health, and other intervention programs and identifies evidence-based programs and policies that have the potential to significantly reduce the effects of the key drivers of intergenerational poverty. The report also examines the disproportionate effect of disadvantage to different racial/ethnic groups. In addition, the report identifies high-priority gaps in the data and research needed to help develop effective policies for reducing intergenerational poverty in the United States."--Publisher's website.

  • Spar 16%
    av National Academies Of Sciences Engineeri
    596,-

    Many young children in the United States are thriving and have access to the conditions and resources they need to grow up healthy. However, a substantial number of young children face more challenging conditions such as: poverty; food insecurity; exposure to violence; and inadequate access to health care, well-funded quality schools, and mental health care. In many cases, the historical origins of unequal access to crucial supports for children's physical, emotional, and cognitive development are rooted in policies that intentionally segregated and limited various populations' access to resources and create opportunity gaps that intertwine and compound to affect academic, health, and economic outcomes over an individual's life course and across generations. Closing the Opportunity Gap for Young Children, identifies and describes the causes, costs, and effects of the opportunity gap in young children and explores how disparities in access to quality educational experiences, health care, and positive developmental experiences from birth through age eight intersect with key academic, health, and economic outcomes. The report identifies drivers of these gaps in three key domains--education, mental health, and physical health--and offers recommendations for policy makers for addressing these gaps so that all children in the United States have the opportunity to thrive. In addition, the report offers a detailed set of recommendations for policy makers, practitioners, community organizations, and philanthropic organizations to reduce opportunity gaps in education, health, and social-emotional development.

  • Spar 13%
    av National Academies Of Sciences Engineeri
    357,-

    The COVID-19 pandemic has had an unprecedented impact on the lives of children and their families, who have faced innumerable challenges such as illness and death; school closures; social isolation; financial hardship; food insecurity; deleterious mental health effects; and difficulties accessing health care. In almost every outcome related to social, emotional, behavioral, educational, mental, physical, and economic health and well-being, families identifying as Black, Latino, and Native American, and those with low incomes, have disproportionately borne the brunt of the negative effects of the pandemic. The effects of the COVID-19 pandemic on children and families will be felt for years to come. While these long-term effects are unknown, they are likely to have particularly significant implications for children and families from racially and ethnically minoritized communities and with low incomes. Addressing the Long-Term Effects of the COVID-19 Pandemic on Children and Families identifies social, emotional, behavioral, educational, mental, physical, and economic effects of the COVID-19 pandemic and looks at strategies for addressing the challenges and obstacles that the pandemic introduced for children and families in marginalized communities. This report provides recommendations for programs, supports, and interventions to counteract the negative effects of the pandemic on child and family well-being and offers a path forward to recover from the harms of the pandemic, address inequities, and prepare for the future.

  • Spar 37%
    av National Academies Of Sciences Engineeri
    507,-

    "The Dietary Reference Intakes (DRIs) are a set of reference values that encompass a safe range of intake and provide recommended nutrient intakes for the United States and Canada. The DRIs for energy are used widely to provide guidance for maintaining energy balance on both an individual and group level.U.S. and Canadian governments asked the National Academies to convene an expert committee to examine available evidence and provide updated Estimated Energy Requirements (EERs) for their populations. The resulting report presents EER equations that provide a baseline for dietary planners and assessors who are estimating energy needs and monitoring energy balance to enhance the general health of individuals and populations."--

  • Spar 15%
    av National Academies Of Sciences Engineeri
    601

    The history of the U.S. criminal justice system is marked by racial inequality and sustained by present day policy. Large racial and ethnic disparities exist across the several stages of criminal legal processing, including in arrests, pre-trial detention, and sentencing and incarceration, among others, with Black, Latino, and Native Americans experiencing worse outcomes. The historical legacy of racial exclusion and structural inequalities form the social context for racial inequalities in crime and criminal justice. Racial inequality can drive disparities in crime, victimization, and system involvement.Reducing Racial Inequality in Crime and Justice: Science, Practice, and Policy synthesizes the evidence on community-based solutions, noncriminal policy interventions, and criminal justice reforms, charting a path toward the reduction of racial inequalities by minimizing harm in ways that also improve community safety. Reversing the effects of structural racism and severing the close connections between racial inequality, criminal harms such as violence, and criminal justice involvement will involve fostering local innovation and evaluation, and coordinating local initiatives with state and federal leadership.This report also highlights the challenge of creating an accurate, national picture of racial inequality in crime and justice: there is a lack of consistent, reliable data, as well as data transparency and accountability. While the available data points toward trends that Black, Latino, and Native American individuals are overrepresented in the criminal justice system and given more severe punishments compared to White individuals, opportunities for improving research should be explored to better inform decision-making.

  • av National Academies Of Sciences Engineeri
    890,-

    Oil and natural gas represent more than 50 percent of the worldwide energy supply, with high energy demand driven by population growth and improving standards of living. Despite significant progress in reducing the amount of oil in the sea from consumption, exploration, transportation, and production, risks remain. This report, the fourth in a series, documents the current state-of-knowledge on inputs, fates and effects of oil in the sea, reflecting almost 20 additional years of research, including long-term effects from spills such as the Exxon Valdez and a decade-long boom in oil spill science research following the Deepwater Horizon oil spill. The report finds that land-based sources of oil are the biggest input of oil to the sea, far outweighing other sources, and it also notes that the effects of chronic inputs on the marine environment, such as land-based runoff, are very different than that from an acute input, such as a spill. Steps to prevent chronic land-based oil inputs include reducing gasoline vehicle usage, improving fuel efficiency, increasing usage of electric vehicles, replacing older vehicles. The report identifies research gaps and provides specific recommendations aimed at preventing future accidental spills and ensuring oil spill responders are equipped with the best response tools and information to limit oil's impact on the marine environment.

  • av National Academies Of Sciences Engineeri
    661,-

    In thousands of communities across the United States, drinking water is contaminated with chemicals known as perfluoroalkyl and polyfluoroalkyl substances (PFAS). PFAS are used in a wide range of products, such as non-stick cookware, water and stain repellent fabrics, and fire-fighting foam, because they have properties that repel oil and water, reduce friction, and resist temperature changes. PFAS can leak into the environment where they are made, used, disposed of, or spilled. PFAS exposure has been linked to a number of adverse health effects including certain cancers, thyroid dysfunction, changes in cholesterol, and small reductions in birth weight. This report recommends that the Centers for Disease Control and Prevention (CDC) update its clinical guidance to advise clinicians to offer PFAS blood testing to patients who are likely to have a history of elevated exposure, such as those with occupational exposures or those who live in areas known to be contaminated. If testing reveals PFAS levels associated with an increased risk of adverse effects, patients should receive regular screenings and monitoring for these and other health impacts. Guidance on PFAS Exposure, Testing, and Clinical Follow-Up recommends that the CDC, Agency for Toxic Substances and Disease Registry (ATSDR), and public health departments support clinicians by creating educational materials on PFAS exposure, potential health effects, the limitations of testing, and the benefits and harms of testing.

  • av National Academies Of Sciences Engineeri
    1 694

    Since 1944, the National Research Council (NRC) has published seven editions of the Nutrient Requirements of Beef Cattle. This reference has guided nutritionists and other professionals in academia and the cattle and feed industries in developing and implementing nutritional and feeding programs for beef cattle. The cattle industry has undergone considerable changes since the seventh revised edition was published in 2000 and some of the requirements and recommendations set forth at that time are no longer relevant or appropriate. The eighth revised edition of the Nutrient Requirements of Beef Cattle builds on the previous editions. A great deal of new research has been published during the past 14 years and there is a large amount of new information for many nutrients. In addition to a thorough and current evaluation of the literature on the energy and nutrient requirements of beef in all stages of life, this volume includes new information about phosphorus and sulfur contents; a review of nutritional and feeding strategies to minimize nutrient losses in manure and reduce greenhouse gas production; a discussion of the effect of feeding on the nutritional quality and food safety of beef; new information about nutrient metabolism and utilization; new information on feed additives that alter rumen metabolism and postabsorptive metabolism; and future areas of needed research. The tables of feed ingredient composition are significantly updated. Nutrient Requirements of Beef Cattle represents a comprehensive review of the most recent information available on beef cattle nutrition and ingredient composition that will allow efficient, profitable, and environmentally conscious beef production.

  • av Board On Physics And Astronomy, Division On Engineering And Physical Sci & National Academies Of Sciences Engineeri
    1 120,-

  • av National Academies Of Sciences Engineeri
    603,-

    With rapidly rising rates of mental health disorders, changing patterns of occurrence, and increasing levels of morbidity, the need for a better understanding of the developmental origins and influence of mental health on children's behavioral health outcomes has become critical. This need for better understanding extends to both the growing prevalence of mental health disorders as well as the role and impact of neurodevelopmental pathways in their onset and expression. Addressing these changes in disease patterns and effects on children and families will require a multifaceted approach that goes beyond simply making changes to clinical care or adding personnel to the health services system. New policies, financing, and implementation can put established best practices and numerous research findings from around the country into action. The Maternal and Child Health Life Course Intervention Research Network and the Forum for Children's Well-Being at the National Academies of Sciences, Engineering, and Medicine jointly organized a webinar series to explore how mental health disorders develop over the life course, with a special emphasis on prenatal, early, middle, and later childhood development. This series centered on identifying gaps in our knowledge, exploring possible new strategies for using existing data to enhance understanding of the developmental origins of mental disorders, reviewing potential approaches to prevention and optimization, and proposing new ways of framing how to understand, address, and prevent these disorders from a life course development perspective. This publication summarizes the presentations and discussions from the series.

  • Spar 28%
    av National Academies Of Sciences Engineeri
    1 158,-

    When communities face complex public health emergencies, state local, tribal, and territorial public health agencies must make difficult decisions regarding how to effectively respond. The public health emergency preparedness and response (PHEPR) system, with its multifaceted mission to prevent, protect against, quickly respond to, and recover from public health emergencies, is inherently complex and encompasses policies, organizations, and programs. Since the events of September 11, 2001, the United States has invested billions of dollars and immeasurable amounts of human capital to develop and enhance public health emergency preparedness and infrastructure to respond to a wide range of public health threats, including infectious diseases, natural disasters, and chemical, biological, radiological, and nuclear events. Despite the investments in research and the growing body of empirical literature on a range of preparedness and response capabilities and functions, there has been no national-level, comprehensive review and grading of evidence for public health emergency preparedness and response practices comparable to those utilized in medicine and other public health fields. Evidence-Based Practice for Public Health Emergency Preparedness and Response reviews the state of the evidence on PHEPR practices and the improvements necessary to move the field forward and to strengthen the PHEPR system. This publication evaluates PHEPR evidence to understand the balance of benefits and harms of PHEPR practices, with a focus on four main areas of PHEPR: engagement with and training of community-based partners to improve the outcomes of at-risk populations after public health emergencies; activation of a public health emergency operations center; communication of public health alerts and guidance to technical audiences during a public health emergency; and implementation of quarantine to reduce the spread of contagious illness.

  • Spar 23%
    av National Academies Of Sciences Engineeri
    662,-

    "The delivery of high quality and equitable care for both mothers and newborns is complex and requires efforts across many sectors. The United States spends more on childbirth than any other country in the world, yet outcomes are worse than other high-resource countries, and even worse for Black and Native American women. There are a variety of factors that influence childbirth, including social determinants such as income, educational levels, access to care, financing, transportation, structural racism and geographic variability in birth settings. It is important to reevaluate the United States' approach to maternal and newborn care through the lens of these factors across multiple disciplines"--

  • Spar 24%
    av National Academies Of Sciences Engineeri
    660,-

    "The consistent and compelling evidence on how social determinants shape health has led to a growing recognition throughout the health care sector that improving health and health equity is likely to depend - at least in part - on mitigating adverse social determinants. This recognition has been bolstered by a shift in the health care sector towards value-based payment, which incentivizes improved health outcomes for persons and populations rather than service delivery alone. The combined result of these changes has been a growing emphasis on health care systems addressing patients' social risk factors and social needs with the aim of improving health outcomes. This may involve health care systems linking individual patients with government and community social services, but important questions need to be answered about when and how health care systems should integrate social care into their practices and what kinds of infrastructure are required to facilitate such activities. integrating Social Care into the Delivery of Health Care: Moving Upstream to Improve the Nation's Health examines the potential for integrating services addressing social needs and the social determinants of health into the delivery of health care to achieve better health outcomes. This report assesses approaches to social care integration currently being taken by health care providers and systems, and new or emerging approaches and opportunities; current roles in such integration by different disciplines and organizations, and new or emerging roles and types of providers; and current and emerging efforts to design health care systems to improve the nation's health and reduce health inequities"--Publisher's description

  • Spar 25%
    av National Academies Of Sciences Engineeri
    816

    Children are the foundation of the United States, and supporting them is a key component of building a successful future. However, millions of children face health inequities that compromise their development, well-being, and long-term outcomes, despite substantial scientific evidence about how those adversities contribute to poor health. Advancements in neurobiological and socio-behavioral science show that critical biological systems develop in the prenatal through early childhood periods, and neurobiological development is extremely responsive to environmental influences during these stages. Consequently, social, economic, cultural, and environmental factors significantly affect a child's health ecosystem and ability to thrive throughout adulthood. Vibrant and Healthy Kids: Aligning Science, Practice, and Policy to Advance Health Equity builds upon and updates research from Communities in Action: Pathways to Health Equity (2017) and From Neurons to Neighborhoods: The Science of Early Childhood Development (2000). This report provides a brief overview of stressors that affect childhood development and health, a framework for applying current brain and development science to the real world, a roadmap for implementing tailored interventions, and recommendations about improving systems to better align with our understanding of the significant impact of health equity.

  • Spar 22%
    av National Academies Of Sciences Engineeri
    966

    Adolescence--beginning with the onset of puberty and ending in the mid-20s--is a critical period of development during which key areas of the brain mature and develop. These changes in brain structure, function, and connectivity mark adolescence as a period of opportunity to discover new vistas, to form relationships with peers and adults, and to explore one's developing identity. It is also a period of resilience that can ameliorate childhood setbacks and set the stage for a thriving trajectory over the life course. Because adolescents comprise nearly one-fourth of the entire U.S. population, the nation needs policies and practices that will better leverage these developmental opportunities to harness the promise of adolescence--rather than focusing myopically on containing its risks. This report examines the neurobiological and socio-behavioral science of adolescent development and outlines how this knowledge can be applied, both to promote adolescent well-being, resilience, and development, and to rectify structural barriers and inequalities in opportunity, enabling all adolescents to flourish.

  • Spar 22%
    av National Academies Of Sciences Engineeri
    584,-

    "One of the pathways by which the scientific community confirms the validity of a new scientific discovery is by repeating the research that produced it. When a scientific effort fails to independently confirm the computations or results of a previous study, some fear that it may be a symptom of a lack of rigor in science, while others argue that such an observed inconsistency can be an important precursor to new discovery. Concerns about reproducibility and replicability have been expressed in both scientific and popular media. As these concerns came to light, Congress requested that the National Academies of Sciences, Engineering, and Medicine conduct a study to assess the extent of issues related to reproducibility and replicability and to offer recommendations for improving rigor and transparency in scientific research. Reproducibility and Replicability in Science defines reproducibility and replicability and examines the factors that may lead to non-reproducibility and non-replicability in research. Unlike the typical expectation of reproducibility between two computations, expectations about replicability are more nuanced, and in some cases a lack of replicability can aid the process of scientific discovery. This report provides recommendations to researchers, academic institutions, journals, and funders on steps they can take to improve reproducibility and replicability in science"--Publisher's description

  • av National Academies Of Sciences Engineeri
    554,-

    "The field of health literacy has evolved from early efforts that focused on individuals to its current recognition that health literacy is a multidimensional team and system function. Health literacy includes system demands and complexities as well as individual skills and abilities. While communicating in a health-literate manner is truly important for everyone, it can be especially important for those with mental or behavioral health issues and for the systems and teams that interact with them and treat these individuals. The purpose of the workshop, which was held on July 11, 2018, in Washington, DC, was to explore issues associated with effective communication with individuals with mental or behavioral health issues and to identify ways in which health literacy approaches can facilitate communication. In particular, the workshop aimed to gain a better understanding of how behavioral health and mental health concerns can adversely affect communications between providers and patients and their families. This publication summarizes the presentations and discussions from the workshop"--Publisher's description.

  • av National Academies Of Sciences Engineeri
    833

    The strengths and abilities children develop from infancy through adolescence are crucial for their physical, emotional, and cognitive growth, which in turn help them to achieve success in school and to become responsible, economically self-sufficient, and healthy adults. Capable, responsible, and healthy adults are clearly the foundation of a well-functioning and prosperous society, yet America's future is not as secure as it could be because millions of American children live in families with incomes below the poverty line. A wealth of evidence suggests that a lack of adequate economic resources for families with children compromises these children's ability to grow and achieve adult success, hurting them and the broader society. A Roadmap to Reducing Child Poverty reviews the research on linkages between child poverty and child well-being, and analyzes the poverty-reducing effects of major assistance programs directed at children and families. This report also provides policy and program recommendations for reducing the number of children living in poverty in the United States by half within 10 years.

  • Spar 15%
    av National Academies Of Sciences Engineeri
    599,-

    This title revisits "America's Lab Report: Investigations in High School Science" in order to consider its discussion of laboratory experiences and teacher and school readiness in an updated context. It considers how to engage today's middle- and high-school students in doing science and engineering through an analysis of evidence and examples.

  • av National Academies Of Sciences Engineeri
    603,-

    There are many reasons to be curious about the way people learn, and the past several decades have seen an explosion of research that has important implications for individual learning, schooling, workforce training, and policy. In 2000, How People Learn: Brain, Mind, Experience, and School: Expanded Edition was published and its influence has been wide and deep. The report summarized insights on the nature of learning in school-aged children; described principles for the design of effective learning environments; and provided examples of how that could be implemented in the classroom. Since then, researchers have continued to investigate the nature of learning and have generated new findings related to the neurological processes involved in learning, individual and cultural variability related to learning, and educational technologies. In addition to expanding scientific understanding of the mechanisms of learning and how the brain adapts throughout the lifespan, there have been important discoveries about influences on learning, particularly sociocultural factors and the structure of learning environments. How People Learn II: Learners, Contexts, and Cultures provides a much-needed update incorporating insights gained from this research over the past decade. The book expands on the foundation laid out in the 2000 report and takes an in-depth look at the constellation of influences that affect individual learning. How People Learn II will become an indispensable resource to understand learning throughout the lifespan for educators of students and adults.

  • av National Academies Of Sciences Engineeri
    1 407,-

    "Millions of Americans use e-cigarettes. Despite their popularity, little is known about their health effects. Some suggest that e-cigarettes likely confer lower risk compared to combustible tobacco cigarettes, because they do not expose users to toxicants produced through combustion. Proponents of e-cigarette use also tout the potential benefits of e-cigarettes as devices that could help combustible tobacco cigarette smokers to quit and thereby reduce tobacco-related health risks. Others are concerned about the exposure to potentially toxic substances contained in e-cigarette emissions, especially in individuals who have never used tobacco products such as youth and young adults. Given their relatively recent introduction, there has been little time for a scientific body of evidence to develop on the health effects of e-cigarettes. Public Health Consequences of E-Cigarettes reviews and critically assesses the state of the emerging evidence about e-cigarettes and health. This report makes recommendations for the improvement of this research and highlights gaps that are a priority for future research." --Publisher's description.

  • Spar 28%
    av National Academies Of Sciences Engineeri
    1 429,-

    "We live on a dynamic Earth shaped by both natural processes and the impacts of humans on their environment. It is in our collective interest to observe and understand our planet, and to predict future behavior to the extent possible, in order to effectively manage resources, successfully respond to threats from natural and human-induced environmental change, and capitalize on the opportunities - social, economic, security, and more - that such knowledge can bring. By continuously monitoring and exploring Earth, developing a deep understanding of its evolving behavior, and characterizing the processes that shape and reshape the environment in which we live, we not only advance knowledge and basic discovery about our planet, but we further develop the foundation upon which benefits to society are built. Thriving on Our Changing Planet presents prioritized science, applications, and observations, along with related strategic and programmatic guidance, to support the U.S. civil space Earth observation program over the coming decade"--

  • av National Academies Of Sciences Engineeri
    661,-

    "A consensus study report of The National Academies of Sciences, Engineering, Medicine."

  • av National Academies Of Sciences Engineeri
    359

    At the request of the National Institute of Standards and Technology (NIST), the National Academies of Sciences, Engineering, and Medicine has, since 1959 annually assembled panels of experts from academia, industry, medicine, and other scientific and engineering environments to assess the quality and effectiveness of the NIST measurements and standards laboratories, of which there are now seven, as well as the adequacy of the laboratories' resources. An Assessment of the National Institute of Standards and Technology Center for Neutron Research: Fiscal Year 2015 reviews the organization's technical programs, the portfolio of scientific expertise within the organization, the adequacy of the organization's facilities, equipment, and human resources, and the effectiveness with which the organization disseminates its program outputs.

  • av National Academies Of Sciences Engineeri
    359

    An assessment of the scientific and technical work performed by three divisions of the National Institute of Standards and Technology (NIST) Information Technology Laboratory for the fiscal year 2015, to include the Information Access Division (IAD), the Software and Systems Division (SSD), and the Statistical Engineering Division (SED).

  • Spar 15%
    av National Academies Of Sciences Engineeri
    556,-

    "The U.S. Air Force (USAF) helps defend the United States and its interests by organizing, training, and equipping forces for operations in and through three distinct domains -- air, space, and cyberspace. The Air Force concisely expresses its vision as "Global Vigilance, Global Reach, and Global Power for America." Operations within each of these domains are dynamic, take place over large distances, occur over different operational timelines, and cannot be routinely seen or recorded, making it difficult for Airmen, national decision makers, and the American People to visualize and comprehend the full scope of Air Force operations. As a result, the Air Force faces increasing difficulty in succinctly and effectively communicating the complexity, dynamic range, and strategic importance of its mission to Airmen and to the American people. To address this concern, the Chief of Staff of the USAF requested that the National Academies of Sciences, Engineering, and Medicine convene a workshop to explore options on how the Air Force can effectively communicate the strategic importance of the Service, its mission, and the role it plays in the defense of the United States. Participants worked to address the issues that a diverse workforce encompassing a myriad of backgrounds, education, and increasingly diverse current mission sets drives the requirement for a new communication strategy. The demographics of today's Air Force creates both a unique opportunity and a distinct challenge to Air Force leadership as it struggles to communicate its vision and strategy effectively across several micro-cultures within the organization and to the general public. This report summarizes the presentations and discussions from the workshop"--

  • Spar 10%
    av National Academies Of Sciences Engineeri
    420,-

    The Department of Commerce operates two telecommunications research laboratories located at the Department of Commerce's Boulder, Colorado, campus: the National Telecommunications and Information Administration's (NTIA's) Institute for Telecommunications Sciences (ITS) and the National Institute of Standards and Technology's (NIST's) Communications Technology Laboratory (CTL). ITS serves as a principal federal resource for solving the telecommunications concerns of federal agencies, state and local governments, private corporations and associations, standards bodies, and international organizations. ITS could provide an essential service to the nation by being a principal provider of instrumentation and spectrum measurement services; however, the inter-related shortages of funding, staff, and a coherent strategy limits its ability to fully function as a research laboratory. This report examines the institute's performance, resources, and capabilities and the extent to which these meet customer needs. The Boulder telecommunications laboratories currently play an important role in the economic vitality of the country and can play an even greater role given the importance of access to spectrum and spectrum sharing to the wireless networking and mobile cellular industries. Research advances are needed to ensure the continued evolution and enhancement of the connected world the public has come to expect.

  • Spar 24%
    av National Academies Of Sciences Engineeri
    660,-

    The United States' tradition of conserving fish, wildlife, habitats, and cultural resources dates to the mid-19th century. States have long sought to manage fish and wildlife species within their borders, whereas many early federal conservation efforts focused on setting aside specific places as parks, sanctuaries, or reserves. With advances in landscape ecology over the past quarter-century, conservation planners, scientists, and practitioners began to stress the importance of conservation efforts at the scale of landscapes and seascapes. These larger areas were thought to harbor relatively large numbers of species that are likely to maintain population viability and sustain ecological processes and natural disturbance regimes - often considered critical factors in conserving biodiversity. By focusing conservation efforts at the level of whole ecosystems and landscape, practitioners can better attempt to conserve the vast majority of species in a particular ecosystem. Successfully addressing the large-scale, interlinked problems associated with landscape degradation will necessitate a planning process that bridges different scientific disciplines and across sectors, as well as an understanding of complexity, uncertainty, and the local context of conservation work. The landscape approach aims to develop shared conservation priorities across jurisdictions and across many resources to create a single, collaborative conservation effort that can meet stakeholder needs. Conservation of habitats, species, ecosystem services, and cultural resources in the face of multiple stressors requires governance structures that can bridge the geographic and jurisdictional boundaries of the complex socio-ecological systems in which landscape-level conservation occurs. The Landscape Conservation Cooperatives (LCC) Network was established to complement and add value to the many ongoing state, tribal, federal, and nongovernmental efforts to address the challenge of conserving species, habitats, ecosystem services, and cultural resources in the face of large-scale and long-term threats, including climate change. A Review of the Landscape Conservation Cooperatives evaluates the purpose, goals, and scientific merits of the LCC program within the context of similar programs, and whether the program has resulted in measurable improvements in the health of fish, wildlife, and their habitats.

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