16,247 research outputs found
Public Health Laboratories: Unprepared and Overwhelmed
Addresses the role of public health labs within the public health system and their ability to respond to specific chemical weapon events. Provides recommendations for improving response to terrorism as well as more conventional threats
The body in the library: adventures in realism
This essay looks at two aspects of the virtual âmaterial worldâ of realist fiction: objects encountered by the protagonist and the latterâs body. Taking from Sartre two angles on the realist pact by which readers agree to lend
their bodies, feelings, and experiences to the otherwise âlanguishing signsâ of the text, it goes on to examine two sets of first-person fictions published between 1902 and 1956 â first, four modernist texts in which banal objects defy and then gratify the protagonist, who ends up ready and almost able to write; and, second, three novels in which the body of the protagonist is indeterminate in its sex, gender, or sexuality. In each of these cases, how do we as readers make texts work for us as âan adventure of the bodyâ
Inhomogeneity and transverse voltage in superconductors
Voltages parallel and transverse to electric current in slightly
inhomogeneous superconductors can contain components proportional to the field
and temperature derivatives of the longitudinal and Hall resistivities. We show
that these anomalous contributions can be the origin of the zero field and
even-in-field transverse voltage occasionally observed at the superconductor to
normal state transition. The same mechanism can also cause an anomaly in the
odd-in-field transverse voltage interfering the Hall effect signal.Comment: 6 pages, 7 figure
Analysis of Yield Spreads on Commercial Mortgage-Backed Securities
Yield spreads on commercial mortgage-backed securities (CMBS) are defined as the difference between the yield on CMBS and the yield on comparable-maturity Treasuries. CMBS yield spreads declined dramatically from 1992 until 1997, then increased in 1998 and 1999. The relationship between CMBS yield spreads and other variables is estimated in an effort to explain recent trends. Results identify several variables that are related to yield spreads on both fixed-rate and variable-rate CMBS. However, even after controlling for other observable factors, the yield spread on CMBS still declined from 1992 until 1997, then increased each of the next two years. Possible explanations for this phenomenon are explored.
Assignments in the electronic spectrum of water
To explain the inelastic feature at 4.5 eV in the spectrum of water and to study its spectrum in some detail, we have carried out several calculations on the excited states of water using the equationsâofâmotion method. We conclude that the calculated vertical excitation energy of 6.9 eV for the ^3B_1 state corresponds to the strong feature at 7.2 eV observed in lowâenergy electron scattering spectrum. The 4.5 eV inelastic process almost certainly does not correspond to a vertical excitation of water at the ground state geometry. The other excitation energies and oscillator strengths agree well with experiment
Massive spinning particle on anti-de Sitter space
To describe a massive particle with fixed, but arbitrary, spin on
anti-de Sitter space , we propose the point-particle model with
configuration space , where the sphere
corresponds to the spin degrees of freedom. The model possesses two gauge
symmetries expressing strong conservation of the phase-space counterparts of
the second- and fourth-order Casimir operators for . We prove that the
requirement of energy to have a global positive minimum over the
configuration space is equivalent to the relation , being the
particle's spin, what presents the classical counterpart of the quantum massive
condition. States with the minimal energy are studied in detail. The model is
shown to be exactly solvable. It can be straightforwardly generalized to
describe a spinning particle on -dimensional anti-de Sitter space ,
with the corresponding configuration
space.Comment: 23 pages, LaTe
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