A Model of Producer Incentives for Livestock Disease Management

We examine the management of livestock diseases from the producers' perspective, incorporating information and incentive asymmetries between producers and regulators. Using a dynamic model, we examine responses to different policy options including indemnity payments, subsidies to report at-risk animals, monitoring, and regulatory approaches to decreasing infection risks when perverse incentives and multiple policies interact. This conceptual analysis illustrates the importance of designing efficient combinations of regulatory and incentive-based policies.livestock disease, asymmetric information, reporting, indemnities, risk management, Livestock Production/Industries, C61, D82, Q12, Q18, Q28,

An Imaging Polarimeter(IMPOL) for multi-wavelength observations

Taking advantage of the advances in array detector technology, an imaging polarimeter (IMPOL) has been constructed for measuring linear polarization in the wavelength band from 400-800 nm. It makes use of a Wollaston prism as the analyser to measure simultaneously the two orthogonal polarization components that define a Stoke's parameter. An achromatic half-wave plate is used to rotate the plane of polarization with respect to the axis of the analyser so that the second Stoke's parameter also can be determined. With a field of view correponding to about 30x30 sq. mm for a 1.2 m, f/13 telescope, a sensitive, liquid-nitrogen cooled CCD camera as the detector and a built-in acquisition and guidance unit, the instrument can be used for studying stellar fields or extended objects with an angular resolution close to 2 arcsec. The instrumental polarization is less than 0.05% and the accuracies of measurement are primarily limited by photon noise for typical observations.Comment: 10 pages including 5 embedded figures; submitted to Astronomy and Astrophysics Supplement Series; available on request to A. N. Ramaprakash ([email protected] or [email protected]); quote report n

Places where Women's Rights are denied in Tholkappiyam

Tholkappiyam is one of the fundamental reasons why the Tamil language stands high today. Tholkappiyam, the oldest, most unique, and the older books that originated in Tamil are the foremost of all the rare books of Tamil. There are so many messages in Tholkappiyam that it can be said that there are no principles that are not there. Tholkappiyam allows us to study contemporary linguistics and talk about literature. The fact that Tholkappiyam also accommodates various literary principles such as Pillai Tamil, folk literature, drama, travel literature, geographical theories, morphology, aesthetics, sociology, science, botany, etc., speaks volumes about the importance of Tholkappiyam to the world. Is there a version of feminist news within the Tholkappiyam? Tolkappian lovers may think that it is wrong to see that. However, Tholkappiyam's uniqueness is that tholkappiyam gives space to carry out research using modern theory. The fact that the fields of study in Tholkappiyam are incalculable is perfectly clear, as a hill in a plain. This article also explores whether the rights of the women who lived in the time of the Tolkappians have been taken away and how should women understand the Tolkappian text. It is certain that this article will look at the methods in which women's rights are recorded in the Tholkappiyam and their cause from the point of view of women

Generalized Solutions for Quantum Mechanical Oscillator on K\"{a}hler Conifold

We study the possible generalized boundary conditions and the corresponding solutions for the quantum mechanical oscillator model on K\"{a}hler conifold. We perform it by self-adjoint extension of the the initial domain of the effective radial Hamiltonian. Remarkable effect of this generalized boundary condition is that at certain boundary condition the orbital angular momentum degeneracy is restored! We also recover the known spectrum in our formulation, which of course correspond to some other boundary condition.Comment: 7 pages, latex, no figur

Electron transport in carbon nanotube-metal systems: contact effects

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing the Fermi level. For finite size CNTs experiments have shown that other values are also possible, indicating a very strong influence of the contacts. We study electron transport in single- and double-wall CNTs contacted to metallic electrodes within the Landauer formalism combined with Green function techniques. We show that the symmetry of the contact region may lead to blocking of a transport channel. In the case of double-wall CNTs with both inner and outer shells being metallic, non-diagonal self energy contributions from the electrodes may induce channel mixing, precluding a simple addition of the individual shell conductances

Coupling between a dark and a bright eigenmode in a terahertz metamaterial

Terahertz time domain spectroscopy and rigorous simulations are used to probe the coupling between a dark and a bright plasmonic eigenmode in a metamaterial with broken symmetry. The metamaterial consists of two closely spaced split ring resonators that have their gaps in non-identical positions within the ring. For normal incidence and a fixed polarization both lowest order eigenmodes of the split ring resonators can be excited; although one of them has to be regarded as dark since coupling is prohibited because of symmetry constraints. Emphasis in this work is put on a systematic evaluation of the coupling effects depending on a spectral tuning of both resonances