A Super-Integrable Discretization of the Calogero Model

A time-discretization that preserves the super-integrability of the Calogero model is obtained by application of the integrable time-discretization of the harmonic oscillator to the projection method for the Calogero model with continuous time. In particular, the difference equations of motion, which provide an explicit scheme for time-integration, are explicitly presented for the two-body case. Numerical results exhibit that the scheme conserves all the$(=3)$ conserved quantities of the (two-body) Calogero model with a precision of the machine epsilon times the number of iterations.Comment: 22 pages, 5 figures. Added references. Corrected typo

Development of magnetic coils for continuous use and a coil-positioning and transporter dolly Final report, Jun. 1964 - Feb. 1966

Magnetic coils for continuous use and coil positioning and transporter doll

Extreme H isotopic anomalies in chondritic organic matter

Extract from introduction: We have conducted ionprobe (IMS6f and NanoSIMS) imaging studies of various samples for H, D, C, 14N and 15N. These will ultimately be correlated with micro-analytic techniques such as FIB/TEM or STXM/XANES. We analyzed matrix fragments from Bells (CM2), Al Rais (CR2) and Tagish Lake (unique) [2], high purity insoluble organic matter (IOM) [3] extracted from EET92042 (“EET”, CR2), Bells, Murchison (CM2), Allende (CV3), Krymka (LL3.1) and, for comparison, 3 IDPs

Nonmonotonic Evolution of the Blocking Temperature in Dispersions of Superparamagnetic Nanoparticles

We use a Monte Carlo approach to simulate the influence of the dipolar interaction on assemblies of monodisperse superparamagnetic ${\gamma}-Fe_{2}O_{3}$ nanoparticles. We have identified a critical concentration c*, that marks the transition between two different regimes in the evolution of the blocking temperature ($T_{B}$) with interparticle interactions. At low concentrations (c < c*) magnetic particles behave as an ideal non-interacting system with a constant $T_{B}$. At concentrations c > c* the dipolar energy enhances the anisotropic energy barrier and $T_{B}$ increases with increasing c, so that a larger temperature is required to reach the superparamagnetic state. The fitting of our results with classical particle models and experiments supports the existence of two differentiated regimes. Our data could help to understand apparently contradictory results from the literature.Comment: 13 pages, 7 figure

Control of Lambing Through Synchronization of Estrus and Induction of Parturition

The ability to program the time of birth for our livestock species offers several advantages to the producer. By concentrating lambing into a short defined period or periods it allows better utilization of labor and facilities. In addition, it should increase lamb survival since better supervision can be maintained for these specific periods. Furthermore, lambs are grouped more closely by age and can be more uniformly managed in such groups. Two trials (1983-84 and 1984-85) were conducted to study the effectiveness to prostaglandin F2α to synchronize estrus and flumethasone to induce parturition in a planned lambing program

Experimental Verification of Surface Vehicle Dynamics

Experimental verification of surface vehicle dynamic

Integrated Management of Reproduction in the Ewe

The ability to group lambing into a short predetermined period offers several desirable benefits to the producer. By concentrating lambing into a shorter period, one should be able to provide closer supervision and thereby increase survival. Also, lambs of similar age can be worked for castration, docking, vaccination, etc. as a group. Part-time producers may find it desirable to program lambing to coincide with available leave time if lambing can be confined to a reasonably short period. A trial was conducted during the 1982-83 breeding-lambing season to evaluate a combined program of synchronization of breeding and induction of lambing to achieve such a program

Understanding class representations: An intrinsic evaluation of zero-shot text classification

Frequently, Text Classification is limited by insufficient training data. This problem is addressed by Zero-Shot Classification through the inclusion of external class definitions and then exploiting the relations between classes seen during training and unseen classes (Zero-shot). However, it requires a class embedding space capable of accurately representing the semantic relatedness between classes. This work defines an intrinsic evaluation based on greater-than constraints to provide a better understanding of this relatedness. The results imply that textual embeddings are able to capture more semantics than Knowledge Graph embeddings, but combining both modalities yields the best performance

Relative Effectiveness of Estrous Synchronization Methods in the Ewe

The value of synchronization is in reducing the breeding period. Prostaglandin F2α (PGF) has been demonstrated to effectively synchronize ewes during the normal breeding season. Different methods of synchronizing estrus with PGF have been proposed. The purpose of this trial was to compare the relative effectiveness of singular PGF injection vs. a dual injection of PGF 10 days apart to a control for synchronizing estrus in the ewe during the normal breeding season