DYNAMICS OF REGIONAL FED CATTLE PRICES

The dynamic relationship between four regional cash prices for fed (slaughter) cattle is investigated using time series analysis and causality tests. The results indicate that price adjustments to new information take about one week. Texas Panhandle price also was determined to dominate the price discovery process. Regional prices also were found to be interdependent. This suggests that increasing regional meat packer concentration may not grant meat packers increased regional market power in their pricing practices.Demand and Price Analysis, Livestock Production/Industries,

ARE AGRICULTURAL EXPERIMENT STATION FACULTY SALARIES COMPETITIVELY OR MONOPSONISTICALLY DETERMINED?

Labor and Human Capital, Teaching/Communication/Extension/Profession,

PRICE ASYMMETRY IN SPATIAL FED CATTLE MARKETS

Price asymmetry in spatial fed cattle markets is investigated for three large markets (Texas Panhandle, Nebraska, and Colorado) and one small market (Utah). Little support is found for the notion that equilibrium prices for fed cattle are asymmetric between locations. However, adjustments to price increases and price decreases occur at different speeds.Demand and Price Analysis, Livestock Production/Industries,

Cryogenic flux-concentrator

Flux concentrator has high primary to secondary coupling efficiency enabling it to produce high magnetic fields. The device provides versatility in pulse duration, magnetic field strengths and power sources

Experimental evaluation of resistojet thruster plume shields

The exhaust of an engineering model resistojet has been investigated using rotary pitot probes and a rotary quartz crystal microbalance. The resistojet operated on CO2 propellant at a mass flow rate of 0.29 g/sec in both heated and unheated flows. Measurements of local flow angles in the near field of a conical plume shield indicated that the shield was not wholly effective in confining the flow to the region upstream of its exit plane. However, the absolute levels of the measured mass flux into the backflow region were very low, on the order of 7 x 10 to the -7 power g/sqcm/sec or less. The use of a circualr disk at the exit plane of the existing conical shield showed some benefit in decreasing the amount of backflow by a factor of two. Lastly, a detached shield placed upstream of the resistojet exit plane demonstrated a small degree of local shielding for the region directly behind it

Notes on Guatemalan Plusiotis (Coleoptera: Scarabaeidae; Rutelinae)

Dos especies nuevas de escarabajos del genero Plusiotis se describen de un bosque nuboso, 1560-1900 m en el departamento de San Marcos, Guatemala. Tambien se describen las hembras de P. turhheimi Ohaus, P. auropunctata Ohaus y P. quiche Moron. Ademas, se registra pOI' primera vez a P. turhheimi para Guatemala.Two new species of Plusiotis are described from a cloud forest between 1560-1900 m in the Department of San Marcos, Guatemala. Females of P. turhheimi Ohaus, P. auropunctata Ohaus and P. quiche Moron are described. Plusiotis turhheimi is reported from Guatemala for the first time

Water Quality Trends across Select 319 Monitoring Sites in Northwest Arkansas

Northwest Arkansas contains two 319 priority watersheds that the Arkansas Natural Resources Commission has identified as being impacted by point source and nonpoint source pollution (i.e., phosphorus, nitrogen, and sediment). This project specifically focused on determining water quality trends at select sites within the Illinois River (HUC# 11110103) and Beaver Reservoir (HUC# 11010001) priority watersheds, including Ballard Creek, Osage Creek, Illinois River, White River, West Fork White River and the Kings River where sufficient constituent data were available. Water quality trends were analyzed using flow‐adjusted constituent concentrations of phosphorus, nitrogen, sediment, sulfate and chloride, and parametric and non‐parametric statistical techniques to determine if constituent concentrations were increasing, decreasing or not significantly changing over time. Overall, flow‐adjusted concentrations of phosphorus and sediment have been decreasing across these watersheds based upon both statistical approaches. The decrease in phosphorus was likely the most important observation, because most water quality concerns in this region have focused on elevated phosphorus concentrations in these transboundary watersheds. These trends can be used along with other watershed information to improve the knowledge of how past, current, and future management decisions have influenced the watershed