Physical Sciences and Mathematics Commons^™

The Probe, Issue 34 - July 1983

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association
No. 34 July, 1983
Animal Rights
Prevention and Control of Wildlife Damage by Bob Timm
Federal funding for studies on guard dogs and taste aversion chemicals
Jackrabbits
Chicago deer population.
Goodbye Joey
1080
Rabies
Mobilization of Animals
11 pound tomcat
Princeton Township, NJ effectively banned hunting in 1972
Urban Coyotes are Something Else
'gopher plant' (Euphorbia lathyris)
EPA
Transfer of Animal Control From USDI to USDA

The Binding Of Ribosomal Protein Si To Si-Depleted 30s And 70s Ribosomes. A Fluorescence Anisotropy Study Of The Effects Of Mg2+, Dixie J. Goss, Lawrence J. Parkhurst, Arkesh M. Mehta, Albert J. Wahba

Lawrence Parkhurst Publications

We have determined the equilibrium constants for the binding of AEDANS-labelled Si to Sl-depleted 30S and 70S ribosomes. For “tight” ribosomes, the association of S1 increases with the sixth power of Mg²⁺ concentration, but for 30S subunits and "loose" ribosomes, there is virtually no dependence of the association on Mg²⁺ over the same concentration range, 2-1O mM in Mg²⁺. The binding of S1 to 70S ribosomes at 10 mM Mg is stabilized by 2 kcal/mol compared to the binding to 30S subunits. When intact Si binds to tight ribosomes, the fluorescence anisotropy is that for virtually …

Are The Silacyclopentadienyl Anion And The Silacyclopropenyl Cation Aromatic?, Mark S. Gordon, Philip Boudjouk, Freidun Anwari

Mark S. Gordon

Stabilization energies attributable to aromaticity in the silacyclopentadienyl anion and the silacyclopropenyl cation were found to be small in the former and absent in the latter when calculated from bond-separation reactions employing 3-21G and ST0-2G basis sets. The silacyclopentadienyl anion is approximately 25% as aromatic as the all-carbon analogue whereas silabenzene is more than 80% as aromatic as benzene. The introduction of diffuse functions into the basis sets has only a small effect on these results. The silacyclopropenyl cation is actually destabilized but strain is probably a key factor in the comparison. Also found was that the ST0-2G basis set …

Equatorial Disturbance Dynamo Electric Fields, Bela G. Fejer, M. F. Larsen, D. T. Farley

Bela G. Fejer

F-region vertical drift data from Jicamarca, Peru show that equatorial east-west electric fields are sometimes perturbed 16-24 hours after the onset of geomagnetic storms. These disturbance dynamo electric fields, which must be caused primarily by the action of neutral winds at low and middle latitudes, decrease and sometimes even reverse the quiet time electric field pattern during both daytime and nighttime. The long delay excludes the possibility that gravity waves are responsible and suggests that the thermospheric circulation is disturbed. The data also show that after some storms there are no such delayed disturbances, a fact which may be due …

Gamma-Gamma Angular Correlation Studies For 142ce, A. Wolf, C. Chung, W. B. Walters, R. L. Gill, M. Shmid, R. E. Chrien, Graham F. Peaslee

Faculty Publications

Gamma-gamma angular correlations for several cascades in 142Ce were measured using a four-detector system. In a recent publication the level at 1219 keV was assigned 22+ in contradiction to a previous assignment of 41+. This makes 142Ce completely different from any known nucleus in the same region. It is shown, however, that this level is, in fact, completely consistent with 4+ and is in agreement with systematics.

Maximum Minimum Reflectance Of Parallel-Polarized Light At Interfaces Between Transparent And Absorbing Media, R. M.A. Azzam

Electrical Engineering Faculty Publications

The pseudo-Brewster angle Ø_pB, of minimum reflectance R_pm for the parallel (p) polarization, of an interface between a transparent and an absorbing medium is determined by Im{(∊ - u)[1 - (1 + ∊^-1)u]²} = 0, where ∊ is the complex ratio of dielectric constants of the media and u = sin²ø_pB. It is shown that, for a given value of the normal-incidence amplitude reflectance |r|, there is an associated normal-incidence phase shift, δ = δ_mm, that leads to maximum minimum parallel reflectance, …

Software Parts For Elliptic Ppe Software, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

A Stronger Form Of The Borel-Cantelli Lemma, Theodore P. Hill

Research Scholars in Residence

No abstract provided.

Monthly Planet, 1983, Summer, David S. Goldsmith, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.

Predicting Infiltration And Surface Runoff From Reconstructed Spoils And Soils, Larry G. Wells, Andrew D. Ward, Ronald E. Phillips

KWRRI Research Reports

A laboratory system was fabricated to measure infiltration and runoff from spoil and soil profiles constructed in rectangular bins. Construction, calibration and operation of a rainfall simulator is discussed and instrumentation used to measure transient infiltration and transmittance of water through experimental profiles is described.

Spoil and soil materials from surface mines in Eastern and Western Kentucky were transported to the laboratory and used in constructing experimental profiles in rectangular bins (0.91 x 1.83 x 1.07 m). An extensive series of infiltration experiments were conducted utilizing a rainfall simulator and soil moisture monitoring instrumentation. A dual probe gamma density gauge …

Atlas Of Wetlands In The Principal Coal Surface Mining Region Of Western Kentucky, William J. Mitsch, Jan R. Taylor, Kimberly B. Benson, Paul L. Hill Jr.

KWRRI Research Reports

This atlas contains maps of wetlands and surface mining activity in the Western Kentucky Coal Field, and focuses on a 3960 km² (1530 mi²) region where approximately 90 percent of surface mining in the Coal field occures. Some present and potential competition exists between surface coal mining and wetland protection. A wetland classification, based on the recent FWS classification, includes six types of palustrine systems and one each of riverine and laucstrine systems. Wetlands and surface mines are located on twenty-seven 7.5 minute USGS quadrangles that define the study region. A total of 460 km² (177 …

Modeling Surface And Subsurface Stormflow On Steeply-Sloping Forested Watersheds, Patrick G. Sloan, Ian D. Moore, George B. Coltharp, Joseph D. Eigel

KWRRI Research Reports

A simple conceptual rainfall-runoff model, based on the variable source area concept, was developed for predicting runoff from small, steep-sloped, forested Appalachian watersheds. Tests of the model showed that the predicted and observed daily discharges were in good agreement. The results demonstrate the ability of the model to simulate the "flashy" hydrologic behavior of these watersheds.

Five subsurface flow models were evaluated by application to existing data measured at Coweeta on a reconstructed homogeneous forest soil. The five models were: Nieber 's 2-D and 1-D finite element models (based on Richards' equation), the kinematic wave equation, and two simple storage …

Studies In Dye-Tracing Technologies In Karst Hydrogeology, John Thrailkill, Phillip E. Byrd, Stephen B. Sullivan, Lawrence E. Spangler, Charles J. Taylor, Greta K. Nelson, Kevin R. Pogue

KWRRI Research Reports

Information on fluorescent dyes used for water tracing and the results of six studies are reported. Optical brightener, direct yellow, fluorescein, rhodamine (WT), and other dyes are described and the procedures employed in their use ·in the field and in equilibration experiments are discussed. Three of the six studies consisted of investigations of the equilibration with passive detectors of three of the dyes. The absorption of optical brightener on fabric detectors was apparently linear with concentration and with immersion time, while detectors became rapidly saturated with direct yellow. Equilibrium of fluorescein on charcoal detectors with an elutriating solution was not …

Highly Excited States Of A Hydrogen Atom In A Strong Magnetic Field, John B. Delos, Stephen Knudson, D. W. Knudson

Arts & Sciences Articles

Classical trajectories and semiclassical energy eigenvalues are calculated for an atomic electron in a high Rydberg state in an external magnetic field. With the use of perturbation theory, a classical trajectory is described as a Kepler ellipse with orbital parameters evolving slowly with time. As they evolve, the ellipse rocks, tilts, and flips in space, but the length of its major axis remains approximately constant. Exact numerical calculations verify that perturbation theory is quite accurate for the cases considered (principal quantum number ≃ 30, magnetic field ≲ 6 T). Action variables are calculated from perturbation theory and from exact trajectories, …

John Muir Newsletter, July/August 1983, Holt-Atherton Pacific Center For Western Studies

Muir Center Newsletters (1981-2015)

Holt-Atherton Pacific Center \\/ / University of the Pacific for Western Studies \ ,/ Stockton, Calif 95211 VOLUME 3 JULY/AUGUST 1983 NUMBER 4 EDITORIAL STAFF: RONALD H. LIMBAUGH, KIRSTEN E. LEWIS FUNDING UPDATE As we go to press we have not yet received formal word, but our "unimpeachable sources" tell us we are about to receive a major grant that will provide most of the Project funding for 1984. The next newsletter will hopefully fill in the details, but we could not wait to share the good news. DATING MUIR MANUSCRIPTS In previous editions we have descibed the complexities of …

Experiments Conducted On The Electron Beam Produced By A Dense Plasma Focus, Mark Steven Pronko

Electrical & Computer Engineering Theses & Dissertations

An experimental investigation was conducted using a 34-kJ Dense Plasma Focus (DPF) in which the possible enhancement of the electron beam was addressed. Electron beams ejected from the DPF have been observed to exceed 30 kA with pulse durations of a few nanoseconds. Enhancement was considered to be either an increase in the probability that the peak beam current exceeded some lower limit, or an increase in the mean energy of the beam electrons. The investigation was divided into two parts, each addressing one of the aspects of enhancement.

In the first part of the investigation, an axial magnetic field …

Study Of Prenucleation Ion Clusters: Correlation Between Ion Mobility Spectra And Size Distributions, Sung-Ho Suck Salk, Donald E. Hagen, James L. Kassner

Physics Faculty Research & Creative Works

Additional studies regarding our earlier electrothermodynamic theory are presented. Comparisons to recent expansion cloud chamber ion mobility measurements are made, indicating general agreement with observations. This theory predicts more stable and ordered structure for prenucleation ion-water cluster systems than accounted for by the classical Thomson's theory. In the limiting case of the dielectric constant ε = 1, our monopole electrostatic energy term contributed by the foreign ion center precisely converges to that of Thomson. Predicted ion cluster size distributions are found to correlate well with ion cluster size spectra obtained from the ion mobility measurements of hydrated ion clusters and …

Soil Degradation Of H-Coal Liquid & Various Aromatic Compounds, Kevin Wilson

Masters Theses & Specialist Projects

The common bacterial genera Pseudomonas and Acinetobacter are ubiquitous in most soils and are capable of degrading a large number of chemical compounds. While the degradative pathways of several individual aromatic compounds are known, the degradative pathways of many other aromatic compounds have not yet been elucidated. In addition, very little work has been done on the microbial degradation of coal liquids in the environment.

Previous work at Western Kentucky University has shown that decomposition of Ashland Oil Company's liquified coal can indeed be accomplished by the above bacterial genera in an enriched liquid media. The topic of this thesis …

Conserving Numerical Methods For X = F(X), Donald Greenspan

Mathematics Technical Papers

Physics is characterized by conservation laws and by symmetry [1]. Unfortunately, the application of numerical methodology in approximating solutions of initial value problems usually does not preserve either of these invariants. In this sense, the use of a computer destroys the physics of a dynamical model. We will show here how to conserve total energy when solving the nonlinear initial value problem [see pdf for notation] on a computer. Moreover, the energy conserved will be exactly that of (1.1), not a new "energy" which is defined by the numerical method (see, e.g., Langdon [5]). Two distinctly different methods will be …

Monotone Method For Boundary Value Problems Describing Periodic Transport Processes, G. R. Shendge

Mathematics Technical Papers

One of the powerful methods of proving the existence of extremal solutions of initial and boundary value problems is the monotone iterative technique [1-4,6,7]. This has recently been applied [5] to a rather special type of boundary value problem [see pdf for notation] because, particular cases of (*) represent equations arising in the transport process of different types of particles moving in opposite directions, which are subjected to certain fluxes [8]. However (*) does not include situations in which the initial and final fluxes in a certain direction coincide. To cover this situation one needs to study a typical periodic …

The Relationship Of Size Class Distribution To Migratory Behavior In Brown Shrimp (Penaeus Aztecus) In Pamlico Sound, North Carolina, Mario A. Paula

OES Theses and Dissertations

The potential of migratory timing information for dynamic yield estimation in the North Carolina brown shrimp fishery has been shown. The present research investigates the influence of size class distribution on the quantitative characterization of migratory timing in the brown shrimp. Catch and nominal effort data were stratified into count size ranges and the time density model of Mundy (1979) was specified for each stratum. The recruitment patterns of the shrimp into the fishery was also investigated.

The stratification of time densities by size class has shown a definite pattern in the migratory behavior of the brown shrimp. It appears …

The Growth And Feeding Behavior Of Juvenile Spot, Leiostomus Xanthurus Lacepede, In The Nursery Region Of The James River, Virginia, John Thomas Mccambridge Jr.

OES Theses and Dissertations

The in situ growth and feeding behavior of juvenile spot, Leiostomus xanthurus Lacepede, was investigated for populations in the nursery area of the James River, Virginia. Growth of juvenile spot was found to be fairly rapid (11.34 mm/month, standard length) during their first summer in the nursery grounds, but it levelled off in the autumn. The mean size of spot after the first year was calculated to be 195 mm total length. The weight-length relationship was log W = -5.018 + 3.246(log L), where W = wet weight in grams and L = standard length in millimeters.

Juvenile spot appeared …

A Model Of The Population Dynamics Of The Blue Crab In Chesapeake Bay, Betty Springer Hester

OES Theses and Dissertations

This study has particular application to the blue crab fisheries in Chesapeake Bay, an economically important industry whose successful management has been hindered by relatively poor understanding of the population dynamics. Recent biological studies have indicated a systematic spawning behavior which seems designed for ejection of larvae seaward from the bay entrance where they spend their pre-metamorphosis stages in the neuston. A physical mechanism for retention of the larvae in sufficient proximity to the bay entrance for their return at the proper time which involves the action of wind stress in shallow waters is proposed. Since the supply of blue …

Simultaneous Functional Hermaphroditism In The Shrimp Hippolysmata Wurdemanni (Gibbes) (Decopoda: Caridea: Hippolytidae), Marie Hollister Bundy

OES Theses and Dissertations

The caridean shrimp Hippolysmata wurdemanni Gibbes was studied from a histological and a behavioral basis and was found to be a protandric hermaphrodite which later adopts simultaneous functional hermaphroditism. When the animal reaches a certain size, the androgenic gland degenerates, the male secondary sexual characteristics are lost, and vitellogenesis occurs in the anterior portion of the gonad. The animals do not lose the ability to function as males as evidenced by the presence of mature sperm in the gonad and the gonadal lumen of gravid shrimp, and the ability of both members of an isolated pair of shrimp to repeatedly …

The Effect Of Crowding On Growth Of The Cichlid Fish, Oreochromis Mossambicus, Bonnie A. Barrows

OES Theses and Dissertations

It has been reported that the Java tilapia, Oreochromis mossambicus, displays hypersensitivity to a substance it produces when biomass levels in a flow-through culture system exceed 20 g/1, resulting in reduced growth and high mortality. Experiments on the growth of this species in small tanks were conducted in order to determine whether O. mossambicus produces a growth-inhibiting compound under crowded conditions. This species was successfully maintained at biomass levels of 38 g/1 and 57 g/1 with a total mortality of only 4.5%.

The Java tilapia can grow rapidly in small aquaria, as indicated by the data taken during Experiment …

Algorithm Gencol: Collocation On General Domains With Bicubic Hermite Polynomials, Elias N. Houstis, W. F. Mitchell, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Collocation Software For Second Order Elliptic Partial Differential Equations, Elias N. Houstis, W. F. Mitchell, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Optimal Routing In The Cube-Connected Cycles Interconnection Network, Daniel A. Reed

Department of Computer Science Technical Reports

No abstract provided.

Contributions To The Study Of Bayes Estimates: The Maximum Likelihood Estimate And Rao's Test., S. N. Joshi Dr.

Doctoral Theses

This the sis consists of two parts. In part I we have investigated problems concerning Bayes estimates, especially ex pansion of the integrated risk of the Bayes estinate (also referred to as the Bayes risk or the integrated Bayes risk), approximation of the Bayes estimate and expansion of the posterior distribution. In part II we have introduc ed a new opimun property for estimates and have concluded that the maximum likelihood estimate (m.1.e.) enjoys this property ; in this part we have also investigated what is known as Raos conjecture which saya that the test based on the score function …

Dissociative Attachment In Hcl, Dcl, And F2, J. N. Bardsley, J. M. Wadehra

Physics and Astronomy Faculty Research Publications

Resonant scattering models, using nonlocal decay widths, are developed for dissociative attachment of slow electrons to diatomic molecules. Cross sections are obtained for HCl and DCl in several initial rotational and vibrational states, and the dependence of the average attachment cross section upon the rotational and vibrational temperature is examined. For F_2 the cross section for ground state molecules agrees well with experiment above 0.2 eV but shows no zero energy peak. The attachment cross section is higher for vibrationally excited molecules, but the enhancement is much less than that found in H_2 and HCl.