23,451 research outputs found
The Circuit Split on Title VII Personal Supervisor Liability
This Note examines the competing rationales for and against individual supervisor liability under Title VII, and concludes that supervisor liability is the better reasoned view. It explains how courts construe the term employer to either allow or disallow direct supervisor liability. It discusses the rationales for and against individual supervisor liability. It concludes that individual supervisor liability is the better reasoned view, on construction, policy and comparative grounds, and proposes joint and several liability for supervisors and employers in all Title VII cases, which will clarify when respondeat superior liability is appropriate under Title VII. This proposal will deter Title VII violations, remedy plaintiffs appropriately and protect employers from undue vicarious liability
Geometry modeling and multi-block grid generation for turbomachinery configurations
An interactive 3D grid generation code, Turbomachinery Interactive Grid genERation (TIGER), was developed for general turbomachinery configurations. TIGER features the automatic generation of multi-block structured grids around multiple blade rows for either internal, external, or internal-external turbomachinery flow fields. Utilization of the Bezier's curves achieves a smooth grid and better orthogonality. TIGER generates the algebraic grid automatically based on geometric information provided by its built-in pseudo-AI algorithm. However, due to the large variation of turbomachinery configurations, this initial grid may not always be as good as desired. TIGER therefore provides graphical user interactions during the process which allow the user to design, modify, as well as manipulate the grid, including the capability of elliptic surface grid generation
Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
The reaction mechanisms for photoproduction from the reaction
in the resonance energy region are
investigated in a hadronic model. Both contributions from and
resonances of masses around 2 GeV as given in the Review of Particle Data Group
and by the quark model predictions are included. The Lagrangians for describing
the decays of these resonances into are constructed with the
coupling constants determined from the decay amplitudes predicted by a quark
model. Comparing the resulting total cross section for the reaction with the preliminary data from the Thomas Jefferson
National Accelerator Facility, we find that the most important contributions
are from the two-star rated resonances , , and , as well as the missing resonance
predicted in the quark model. Predictions on the
differential cross section and photon asymmetry in this reaction are also
given.Comment: 13 pages, 6 figures, REVTeX, to appear in Phys. Rev.
Dominant Superconducting Fluctuations in the One-Dimensional Extended Holstein-Extended Hubbard model
The search for realistic one-dimensional (1D) models that exhibit dominant
superconducting (SC) fluctuations effects has a long history. In these 1D
systems, the effects of commensurate band fillings--strongest at
half-filling--and electronic repulsions typically lead to a finite charge gap
and the favoring of insulating density wave ordering over superconductivity.
Accordingly, recent proposals suggesting a gapless metallic state in the
Holstein-Hubbard (HH) model, possibly superconducting, have generated
considerable interest and controversy, with the most recent work demonstrating
that the putative dominant superconducting state likely does not exist. In this
paper we study a model with non-local electron-phonon interactions, in addition
to electron-electron interactions, this model unambiguously possesses dominant
superconducting fluctuations at half filling in a large region of parameter
space. Using both the numerical multi-scale functional renormalization group
for the full model and an analytic conventional renormalization group for a
bosonized version of the model, we demonstrate the existence of dominant
superconducting (SC) fluctuations. These dominant SC fluctuations arise because
the spin-charge coupling at high energy is weakened by the non-local
electron-phonon interaction and the charge gap is destroyed by the resultant
suppression of the Umklapp process. The existence of the dominant SC pairing
instability in this half-filled 1D system suggests that non-local
boson-mediated interactions may be important in the superconductivity observed
in the organic superconductors.Comment: 8 pages, 4 figure
Entanglement Property and Monogamy Relation of Gerneralized Mixed W
We introduce a new class of multipartite entangled mixed states with pure
state decompositions of generalized W states, similar to Schmidt-correlated
states having generalized GHZ states in the pure state decomposition. The
entanglement and separability properties are studied according to PPT
operations. Monogamy relations linked to these states are also investigated.Comment: 8 page
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