Showing papers by "Mississippi State University published in 1975"
236 citations
110 citations
TL;DR: In this paper, the infrared and microwave data are combined within the theoretical framework of the small oscillations model, and the results compare favorably with the true harmonic force field, and further confirm the usefulness of rotationvibration data in the determination of force constants.
95 citations
TL;DR: A total of 570 hours of tracking showed water temperature to be the only parameter that related to increases or decreases in movement of largemouth bass, and behavior patterns associated with activity within home range consisted of movements from deep to shallow water as discussed by the authors.
Abstract: Sixteen sonic-tagged largemouth bass (Micropterus salmoides) were released from 4 March 1972 to 14 April 1973 to determine water management practices and environmental factors that may affect fish movement, home range of largemouth bass, and behavior patterns associated with activity within home area. Tags had an average life of 13.8 days. They were implanted in the body cavity and seemed to have no effect on the movements of the bass. A total of 570 hours of tracking showed water temperature to be the only parameter that related to increases or decreases in movement. Diurnal movement was prevalent in the spring and fall. Nocturnal movement increased as water temperature approached summer highs. Fish were most active in March and September and least active in December and January. Home ranges differed with seasonal water temperature changes but never exceeded 100 m. Behavior patterns associated with activity within home range consisted of movements from deep to shallow water.
64 citations
TL;DR: The authors compare the classical non-full rank analysis with the full rank analysis, or analysis of means, and find that the latter analysis eliminates much of the confusion, particularly in the area of hypothesis testing with unbalanced data.
Abstract: The analysis of linear models is supported by a rigorous mathematical development, but there appear to be serious gaps between theory and practice. In this article we compare, for a number of examples, the classical non-full rank analysis with the full rank analysis, or analysis of means. We find that the latter analysis eliminates much of the confusion, particularly in the area of hypothesis testing with unbalanced data.
63 citations
TL;DR: In this paper, no significant differences were found between nominal and interacting groups in number of items generated, number of unique responses, or quality of responses, thus contradicting previously publish...
Abstract: No significant differences were found between nominal and interacting groups in number of items generated, number of unique responses, or quality of responses, thus contradicting previously publish...
62 citations
TL;DR: Kepone R, an organochlorine insecticide has been widely used for controlling leaf-eating insects, however, the mode of action of this compound, like other chlorinated hydrocarbons, is not clearly understood to date.
Abstract: Modern pest control methods by chemicals cause contamination of world waterways and thus endanger the life of aquatic fauna, including fish. Although voluminous information is available on the residual toxicity and other environmental factors of the socalled hard pesticides, there is little information available on the mechanism of toxic action of these organochlorine pesticides. In recent years, the ATPase enzyme system(s) has been proposed by us (KOCH 1969b, KOCH 1969/70, CUTKOMP et al. 1971a) and others (MATSUMURA et al. 1969, AKERA et al. 1971, DAVIS et al. 1972) as a possible target site for these organochlorine compounds. Kepone R, an organochlorine insecticide has been widely used for controlling leaf-eating insects. However, the mode of action of this compound, like other chlorinated hydrocarbons, is not clearly understood to date.
53 citations
TL;DR: In this article, a solution of the nonlinear Reynolds equation is obtained by expanding the pressure in powers of the squeeze number, retaining up to and including terms of the order of the square of the Squeeze number.
Abstract: Gaseous squeeze film dampers are analyzed to determine the effect of periodic disturbance amplitude on the dynamic performance. Both circular and rectangular parallel surfaces are investigated. A solution of the nonlinear Reynolds equation is obtained by expanding the pressure in powers of the squeeze number, retaining up to and including terms of the order of the square of the squeeze number. The time dependent load characteristics are found. The effect of disturbance amplitude on the film stiffness and damping is given.
49 citations
TL;DR: In this paper, a new approach was taken in studying the asymptotic behavior of solutions of Eq. (1) by examining the quotient r(t)/q(t) as t + 03, without requiring that the forcing term, Y(Z), be small.
39 citations
TL;DR: In this paper, the infrared and Raman data on the ring-puckering vibration in cyclobutane and cyclobutan-d8 have been reexamined including the coordinate dependence of the reduced mass in the Hamiltonian.
39 citations
01 Jan 1975
TL;DR: In this article, the authors proposed a method for numerical solution of the Navier-Stokes equations that can treat the unsteady laminar flow about bodies of arbitrary shape, such as two-dimensional airfoils, multiple air foils, and submerged hydrofoils.
Abstract: A procedure for numerical solution of the time-dependent, two-dimensional incompressible Navier-Stokes equations that can treat the unsteady laminar flow about bodies of arbitrary shape, such as two-dimensional airfoils, multiple airfoils, and submerged hydrofoils, as naturally as it can deal with the flow about simple bodies. The solution is based on a method of automatic numerical generation of a general curvilinear coordinate system with coordinate lines coincident with all boundaries of a general multiconnected region containing any number of arbitrarily shaped bodies. The curvilinear coordinates are generated as the solution of two elliptical partial differential equations with Dirichlet boundary conditions, one coordinate being specified to be constant on each of the boundaries, and a distribution of the other being specified along the boundaries. The solution compares excellently with the Blasius boundary layer solution for the flow past a semiinfinite flat plate.
TL;DR: Investigation of in situ decomposition and proximate nutritive values of three plants and their detritus of Spartina cynosuroides and Distichlis spicata and Scirpus americanus found these plants retain 60–70% organic content and the caloric value either remains the same or increases slightly.
Abstract: Recognition of salt marsh plant detritus as a nutritious source of food for estuarine consumers prompted investigation of in situ decomposition and proximate nutritive values of three plants and their detritus namely: Spartina cynosuroides and Distichlis spicata (Gramineae) and Scirpus americanus (Cyperaceae) growing abundantly in Mississippi tidal marshes. During decomposition to particulate detritus, these plants retain 60–70% organic content and the caloric value either remains the same or increases slightly. Crude fiber, carbohydrate, and fat contents decline but protein shows 96–300% increase from dead plants to particulate detritus stage.
TL;DR: There are no significant differences between the hydrocarbons of the male and female pecan weevils.
Abstract: As part of a program to identify as many as possible of the components of the pecan weevil, Curculio caryae (Horn), the hydrocarbons from males, females, and larvae were isolated by solvent extraction and column chromatography and subjected to gas lipuid chromatography-mass spectrometry analysis. n-Alkanes from C14-C32 in the larvae and unsaturated and branched chain hydrocarbons from C20-C32 in males and females were found. There are no significant differences between the hydrocarbons of the male and female pecan weevils.
TL;DR: In this article, the microwave spectrum of thiane, a heterocyclic analog of cyclohexane, has been studied in the region 26.5-40 GHz.
TL;DR: In this paper, temperature dependence of soil-water diffusivity and specific water capacity coefficients was studied in the same sample of Dundee silt loam using a one-step pressure-plate outflow method.
TL;DR: In this paper, low-resolution spectra of φNCS and NCO have been used to obtain information on the orientation of the linear NCS and NNC group relative to the bond from the phenyl ring.
TL;DR: Mitochondrial Mg2+ ATPase was the most sensitive ATPase to the cyclodiene compounds tested, and the possibility that the neurotoxic effects of these compounds is a secondary response resulting from mitochondrial Mg 2+ ATP enzyme inhibition is discussed.
TL;DR: Routine intrauterine treatment of all cows with neomycin sulfate boluses should not be recommended, and the probable cause of the lowered reproductive efficiency is discussed.
TL;DR: The mammilaris region in the chicken's hypothalamus does not inhibit mating behavior while the Ru nucleus may be an inhibitory center for mating behavior in theChicken.
TL;DR: The specific activities and subcellular distribution of eleven enzymes were determined in whole body homogenates of the American oyster, Crassostrea virginica, and the activities of lactic dehydrogenase, cytochrome oxidase, and acid phosphatase were inversely proportional to organism weight.
Abstract: 1. 1. The specific activities and subcellular distribution of eleven enzymes were determined in whole body homogenates of the American oyster, Crassostrea virginica . 2. 2. The activities of lactic dehydrogenase, cytochrome oxidase, and acid phosphatase were inversely proportional to organism weight. 3. 3. Seasonal fluctuations were observed for malic dehydrogenase, glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, acetylcholinesterase, alkaline phosphatase and acid phosphatase.
TL;DR: The authors compared the response-eliminating properties of omission training, extinction training, and a variable-time schedule within pigeons following training on a variable interval schedule, and found that both omission training and extinction training eliminated responding significantly more efficiently than did the variable time schedule.
Abstract: The present study compared the response-eliminating properties of omission training, extinction training, and a variable-time schedule within pigeons following training on a variable-interval schedule. The results indicated that both omission training and extinction training eliminated responding significantly more efficiently than did the variable-time schedule, although they did not differ significantly from each other in their response-eliminating effects. In addition, response rates during the variable-time schedule tended to increase above baseline (i.e., positive behavioral contrast) in all subjects by the end of training. Possible explanations for these effects were discussed.
TL;DR: Sclerotial germination, hyphal growth pattern, and appressorial formation of the charcoal rot fungus, Macrophomina phaseolina (Tassi) Goid is observed on the surface of soybean roots using scanning electron microscopy.
Abstract: Sclerotial germination, hyphal growth pattern, and appressorial formation of the charcoal rot fungus, Macrophomina phaseolina (Tassi) Goid. on the surface of soybean roots, Glycine max (L.) Merrill was observed using scanning electron microscopy. Sclerotial germination is followed by a hyphal growth pattern which does not appear to be associated with any specific structural feature on the corrugated root surface. Appressoria are produced on the root surface at the tips of both primary hyphae and side branches within three days after inoculation.
TL;DR: The singularity expansion method (SEM) has been applied to determine the current and charge induced on a system of perpendicular crossed cylinders as discussed by the authors, and the characteristics of this structure have been studied as the various parameters are varied.
Abstract: The singularity expansion method (SEM) has been applied to determine the current and charge induced on a system of perpendicular crossed cylinders. The SEM characteristics of this structure have been studied as the various parameters are varied. The time domain response of one particular geometry has been obtained by SEM and compared to that determined by the more conventional frequency domain analysis and Fourier inversion.