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\"The thrilling and terrifying seventy-year story of the physics that deciphered the atom and created the hydrogen bomb Although Henri Becquerel didn't know it at the time, he changed history in 1895 when he left photographic plates and some uranium rocks in a drawer. The rocks emitted something that exposed the plates: it was the first documented evidence of spontaneous radioactivity. So began one of the most exciting and consequential efforts humans have ever undertaken. As Frank Close recounts in Destroyer of Worlds, scientists confronting Becquerel's discovery had three questions: What was this phenomenon? Could it be a source of unlimited power? And (alas), could it be a weapon? Answering them was an epic journey of discovery, with Ernest Rutherford, Enrico Fermi, Irene Joliot-Curie, and many others jockeying to decipher the dance of particles in a decaying atom. And it was a terrifying journey as well, as Edward Teller and others pressed on from creating atom bombs to hydrogen bombs so powerful that they could destroy all life on Earth. The deep history of the nuclear age has never before been recounted so vividly. Centered on an extraordinary cast of characters, Destroyer of Worlds charts the course of nuclear physics from simple curiosity to potential Armageddon\"-- Provided by publisher.

A personal recount in areas of particle physics and related fields as a research physicist for over 50 years, Adrian Melissinos' insights into the ways that general research was carried out, as well as the evolution of particle physics from 1958 to 2008 will prove valuable to science history enthusiasts, as well as particle physicists.

The Inter-University Centre for Astronomy and Astrophysics (IUCAA) is the second Inter-University Centre established by the Government of India for promotion of astronomy and astrophysical research. In this article, the historical development, as well as the motivation, for establishing IUCAA has been discussed which comprises of the period 1988–1993, i.e. the first 5 years. A glimpse of research work in pre- and post-colonial era in India has also been presented to have a holistic view of the genesis.

The Chernobyl disaster has been variously ascribed to human error, reactor design flaws, and industry mismanagement. Six former Chernobyl employees were convicted of criminal negligence; they defended themselves by pointing to reactor design issues. Other observers blamed the Soviet style of ideologically driven economic and industrial management. InProducing Power,Sonja Schmid draws on interviews with veterans of the Soviet nuclear industry and extensive research in Russian archives as she examines these alternate accounts. Rather than pursue one \"definitive\" explanation, she investigates how each of these narratives makes sense in its own way and demonstrates that each implies adherence to a particular set of ideas -- about high-risk technologies, human-machine interactions, organizational methods for ensuring safety and productivity, and even about the legitimacy of the Soviet state. She also shows how these attitudes shaped, and were shaped by, the Soviet nuclear industry from its very beginnings.Schmid explains that Soviet experts established nuclear power as a driving force of social, not just technical, progress. She examines the Soviet nuclear industry's dual origins in weapons and electrification programs, and she traces the emergence of nuclear power experts as a professional community. Schmid also fundamentally reassesses the design choices for nuclear power reactors in the shadow of the Cold War's arms race. Schmid's account helps us understand how and why a complex sociotechnical system broke down. Chernobyl, while unique and specific to the Soviet experience, can also provide valuable lessons for contemporary nuclear projects.

If China’s experimental reactor is a success it could lead to commercialization and help the nation meet its climate goals. If China’s experimental reactor is a success it could lead to commercialization and help the nation meet its climate goals.

The goal of this article is to address the problem of inconsistent models and the challenge it poses for perspectivism. I analyze the argument, draw attention to some hidden premises behind it, and deflate them. Then I introduce the notion of perspectival models as a distinctive class of modeling practices whose primary function is exploratory. I illustrate perspectival modeling with two examples taken from contemporary high-energy physics at the Large Hadron Collider at the European Organization for Nuclear Research (CERN), which are designed to show how a plurality of seemingly incompatible models (suitably understood) is methodologically crucial to advance the realist quest in cuttingedge areas of scientific inquiry.

The assessment of bone age and skeletal maturity and its comparison to chronological age is an important task in the medical environment for the diagnosis of pediatric endocrinology, orthodontics and orthopedic disorders, and legal environment in what concerns if an individual is a minor or not when there is a lack of documents. Being a time-consuming activity that can be prone to inter- and intra-rater variability, the use of methods which can automate it, like Machine Learning techniques, is of value. The goal of this paper is to present the state of the art evidence, trends and gaps in the research related to bone age assessment studies that make use of Machine Learning techniques. A systematic literature review was carried out, starting with the writing of the protocol, followed by searches on three databases: Pubmed, Scopus and Web of Science to identify the relevant evidence related to bone age assessment using Machine Learning techniques. One round of backward snowballing was performed to find additional studies. A quality assessment was performed on the selected studies to check for bias and low quality studies, which were removed. Data was extracted from the included studies to build summary tables. Lastly, a meta-analysis was performed on the performances of the selected studies. 26 studies constituted the final set of included studies. Most of them proposed automatic systems for bone age assessment and investigated methods for bone age assessment based on hand and wrist radiographs. The samples used in the studies were mostly comprehensive or bordered the age of 18, and the data origin was in most of cases from United States and West Europe. Few studies explored ethnic differences. There is a clear focus of the research on bone age assessment methods based on radiographs whilst other types of medical imaging without radiation exposure (e.g. magnetic resonance imaging) are not much explored in the literature. Also, socioeconomic and other aspects that could influence in bone age were not addressed in the literature. Finally, studies that make use of more than one region of interest for bone age assessment are scarce.

The book description for \"Atomic Energy Policy in France Under the Fourth Republic\" is currently unavailable.

Researchers tested mechanisms linked to nuclear fusion at room temperature — but found no evidence for the phenomenon. Researchers tested mechanisms linked to nuclear fusion at room temperature — but found no evidence for the phenomenon. Researcher Martin Fleischmann explains his fusion experiment to Marilyn Lloyd

Demonstrates how policymakers influenced environmental science during the early nuclear age In Atomic Environments: Nuclear Technologies, the Natural World, and Policymaking, 1945–1960 , Neil S. Oatsvall examines how top officials in the Truman and Eisenhower administrations used environmental science to develop nuclear strategy at the beginning of the Cold War. While many people were involved in research and analysis during the period in question, it was at highest levels of executive decision-making where environmental science and nuclear science most clearly combined to shape the nation’s policies. Oatsvall clearly demonstrates how the natural world and the scientific disciplines that study it became integral parts of nuclear science rather than adversarial fields of knowledge. But while nuclear technologies heavily depended on environmental science to develop, those same technologies frequently caused great harm to the natural world. Moreover, while some individuals expressed real anxieties about the damage wrought by nuclear technologies, policymakers as a class consistently made choices that privileged nuclear boosterism and secrecy, prioritizing institutional values over the lives and living systems that they were ostensibly charged to protect. By scrutinizing institutional policymaking practices and agendas at the birth of the nuclear age, a constant set of values becomes clear. Oatsvall reveals an emerging technocratic class that routinely valued knowledge about the environment to help create and maintain a nuclear arsenal, despite its existential threat to life on earth and the negative effects many nuclear technologies had on ecosystems and the American people alike. Although policymakers took their charge to protect and advance the welfare of the United States and its people seriously, Atomic Environments demonstrates how they often failed to do so because their allegiance to the US nuclear hierarchy blinded them to the real risks and dangers of the nuclear age.