21 research outputs found

    The Comprehensive Test Ban Treaty: Issues and Answers

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    Rapidly expanding nuclear arsenals in Pakistan and India portend regional and global catastrophe

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    Pakistan and India may have 400 to 500 nuclear weapons by 2025 with yields from tested 12- to 45-kt values to a few hundred kilotons. If India uses 100 strategic weapons to attack urban centers and Pakistan uses 150, fatalities could reach 50 to 125 million people, and nuclear-ignited fires could release 16 to 36 Tg of black carbon in smoke, depending on yield. The smoke will rise into the upper troposphere, be self-lofted into the stratosphere, and spread globally within weeks. Surface sunlight will decline by 20 to 35%, cooling the global surface by 2° to 5°C and reducing precipitation by 15 to 30%, with larger regional impacts. Recovery takes more than 10 years. Net primary productivity declines 15 to 30% on land and 5 to 15% in oceans threatening mass starvation and additional worldwide collateral fatalities

    Toward True Security: A U.S. Nuclear Posture for the Next Decade

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    This report proposes a nuclear weapons policy for the United States for the next decade that reflects today’s political and strategic realities. By contrast, the official policies and doctrines of both the United States and Russia are mired in Cold War patterns of thought. Eleven years after the fall of the Berlin Wall, both countries still maintain massive nuclear arsenals ready for nearly instant use. Although nuclear war plans differ in size and detail from those drawn up 20 or more years ago, their basic structure remains unchanged. The US nuclear arsenal and doctrine were designed to deter a deliberate large-scale Soviet nuclear attack on the United States and a massive Soviet conventional attack on US European allies, as well as to preserve the option of a disarming first strike against Soviet nuclear forces. This force structure and doctrine are obsolete and jeopardize American national security.Federation of American Scientists, Natural Resources Defense Council, Union of Concerned Scientist

    The Subject, Alterity and Writing

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    (Statement of Responsibility) by Matthew McKinzie(Thesis) Thesis (B.A.) -- New College of Florida, 1994(Electronic Access) RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE(Bibliography) Includes bibliographical references.(Source of Description) This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.(Local) Faculty Sponsor: Berggren, Dougla

    Inelastic scattering and single and double charge exchange reactions within the A=27 isobaric multiplet

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    Angular distributions for the reactions \sp{27}Al, \sp{28}Si(\pi\sp{\pm},\pi\sp{\pm}) at T\sb\pi = 180 MeV and an excitation function at \theta\sb{\rm lab.} = 5\sp{\rm o} for the reaction \rm\sp{27}Al(\pi\sp{+},\pi\sp{-})\sp{27}P were measured using the Energetic Pion Channel and Spectrometer at the Clinton P. Anderson Meson Physics Facility in Los Alamos, New Mexico. Angular distributions for the reaction \sp{27}Al(n,p)\sp{27}Mg were measured at T\sb{\rm N} = 198 MeV using the Medium Resolution Spectrometer at Canada\u27s Tri-University Meson Facility in Vancouver, British Columbia. Multipole matrix elements were extracted in a macroscopic manner from the pion inelastic angular distributions using the distorted-wave impulse approximation and collective-model transition densities. Microscopic calculations of these extracted matrix elements and of the pion angular distributions were examined. Double charge exchange (DCX) excitation functions to the \sp{27}P ground state and an excited state were measured at nine incident pion energies from T\sb\pi = 100 to 293.4 MeV. The systematics of DCX excitation functions to low-lying states is reviewed in light of these data. Microscopic calculations of DCX for and near A = 27 are investigated. Double giant resonances in \sp{27}P were observed at the three highest energies. The (n,p) charge exchange angular distributions were obtained for \theta\sb{\rm lab.} = 0\sp\circ, 4\sp\circ, 8\sp\circ, 12\sp\circ, 18\sp\circ and 24\sp\circ. The Gamow-Teller strength distribution was measured and compared to a microscopic calculation. The constant of proportionality between reduced transition probability and cross section (the unit cross section) was generalized and examined for configuration dependence. Data for higher spin-multipole isovector excitations are presented, including low-lying spin-isospin E2 strength and negative-parity giant resonances

    The protection paradox

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    Research Update: Engaging School Food Authorities in Local Procurement Economic Impact Study

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    Farm-to-school (F2S) programs are initiatives in which schools participate with the intent to promote healthy lifestyle choices among children and introduce agricultural lessons into school curriculums (Becot et al., 2017; Christensen et al., 2019). Program activities include local food procurement, educational activities, and school gardens (Besse, 2021)

    Research Update: Engaging School Food Authorities in Local Procurement Economic Impact Study

    No full text
    Farm-to-school (F2S) programs are initiatives in which schools participate with the intent to promote healthy lifestyle choices among children and introduce agricultural lessons into school curriculums (Becot et al., 2017; Christensen et al., 2019). Program activities include local food procurement, educational activities, and school gardens (Besse, 2021)
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