Physical Sciences and Mathematics Commons^™

Studies To Develop And Investigate An Inverse Formulation For Numerically Solving Three-Dimensional Free Surface Potential Fluid Flows, Roland W. Jeppson

Reports

An inverse formulation is developed for solving three-dimensional potential fluid flows which considers the magnitudes of the cartesian coordinates x, y, and z as the dependent variables in the space defined by the potential function and two mutually orthogonal stream surface functions whose intersection defines the physical space streamlines. This formulation reverses the usual role of the variables. In this inverse space irregular boundaries, with unknown position in the physical space, such as free surfaces become plane boundaries, and the space of most potential flow problems is a parallelepiped. The basin partial differential equations resulting from this formulation are nonlinear …

Limitations Of Some Finite Difference Methods In Solving The Strongly Nonlinear Equation Of Unsaturated Flow In Soils, Roland W. Jeppson

Reports

No abstract provided.

Relationships Of Infiltration Characteristics To Parameters Describing The Hydraulic Properties Of Soils, Roland W. Jeppson

Reports

No abstract provided.

A Survey Of The Fishes Of The Mulberry River, Arkansas, Larry L. Olmsted, Gary D. Hickman, Donald G. Cloutman

Arkansas Water Resources Center Technical Reports

Announcement of plans to dam Mulberry River, Arkansas, by the United States Army Corps of Engineers has generated some dispute. Most agruments against damming the stream revolve around environmental degradation and loss of aesthetic values. This report serves as a pre-impoundment survey of the fishes of the Mulberry River so that possible effects of impoundment can be more objectively assessed. Knowledge on the fishes of the Mulberry River is severely lacking. The first study was by Jordan and Gilbert (1886) who collected in the southern U.S. in July, August, and September, 1884. They collected in many streams in Arkansas including …

Iodine Metabolism In Sessile Stages Of Chesapeake Bay Semaeostome Jellyfish, Janet Evelyn Olmon

Dissertations, Theses, and Masters Projects

No abstract provided.

Serum Esterase, Lactate Dehydrogenase, And Tetrazolium Oxidase Polymorphisms In The Clupeidae, Walter Francis Eanes

Dissertations, Theses, and Masters Projects

No abstract provided.

Acute Toxicity Of No 6 Fuel Oil To Intertidal Organisms In The Lower York River, Virginia, Jeffrey L. Hyland

Dissertations, Theses, and Masters Projects

No abstract provided.

Birch Reduction Of Benzamide, N-Substituted Benzamides And Biphenylene, Luther Dickson

University of the Pacific Theses and Dissertations

The Birch reduction of benzamide with sodium and absolute ethanol. 95% ethanol, or tert-butanol in liquid ammonia gave 1,4-dihydrobenzamide in varying amounts. The amide group was not reduced. The two most important variables encountered were the alcohol used and whether or not ammonium chloride was added after the reduction was completed. Without this addition of ammonium chloride, little or no 1,4-dihydrobenzamide was present after workup, while with its addition some 1,4-dihydrobenzamide formed whether the proton source was absolute ethanol, 95% ethanol, or tert-butanol. The highest yield was obtained with tert-butanol with ammonium chloride being added. Addition of ammonium chloride apparently …

Dipeptide Complexes Of Palladium(Ii) And Platinum(Ii), Lewis Enos Nance

University of the Pacific Theses and Dissertations

Due to recent interest in the role of heavy metals in enzymes. oxygen-carrying molecules. and anticarcinogenic compounds, the study of metal-protein bonding has assumed a new importance. Studies have been made utilizing platinum compounds as anticarcinogenic agents in several different types of cancerous activity. No study of the mechanism by which Pd(II) and Pt(II) compounds exhibit anticarcinogenic properties has been made to date.

The purpose of this research was to investigate the nature of bonding of Pd(II) and Pt(II) with various dipeptides, which were chosen in this study as a basic unit of protein-like material. These compounds have the advantage …

The Thermal Rearrangement Of Triarylacetonitrile Oxides., Leslie Wayne Gibbs

University of the Pacific Theses and Dissertations

This research is a detailed study of the rearrangement of triarylacetonitrile oxides to the corresponding triarylmethylisocyanates. The kinetics of the rearrangement of triphenylacetonitrlle oxide was followed by infrared absorption spectroscopy using the peak due to the N-0 stretching (1307cm^-1). A study, both, using the differential method (i.e., a plot of the logs of the initial slopes vs. the log of the concentration) and a check of the integrated forms of the rate expressions to determine which gave a constant value for the rate constant showed that the reaction is first order.

From measurements of the rate constant, k, …

Synthesis And Reactions Of Benzyl 2-Bromo-2-Deoxy Hexoses, Terry Cady Tompkins

University of the Pacific Theses and Dissertations

The purpose of this study is to show that the method just proposed can be used for the synthesis of 2-halo benzyl glycosides. And these derivatives can be used to synthesize biologically interesting compounds which were not previously attainable using the 2-halo-2-deoxy methyl glycosides which are currently available.

The Study Of The Isomerization Of Trans-3-Acetoxy-2-Bromocyclooctene, Virginia Hill Lewis

University of the Pacific Theses and Dissertations

The isomerization of trans-3-acetoxy-2-bromocyclooctene (trans-1) to cis-3-acetoxy-2-bromocyclooctene (cis-1) was studied, trans-3- Methoxy-2-bromocyclooctene (trans-2) was used as a model compound for comparison. The rate of isomerization of both compounds increased tremendously with iodine (free radical catalysis) and decresed tremendously in the presence of hydroquinone (free radical inhibitor). This showed that the isomerizations of trans-1 and trans-2 are free radical catalyzed. It was anticipated that acetoxyl participation in trans-1, by stabilizing the free radical intermediate, would cause the rate of rearrangement of trans-1 to be much greater than the rate of rearrangement of trans-2. However, trans-1 iscented only about four times faster …

Birch Reduction Of Cinnamic Acid, John G. Little

University of the Pacific Theses and Dissertations

The use of alkali and alkaline earth metals as reducing agents in liquid ammonia solvent for aromatic and conjugated systems has been investigated by chemists at least since the early 1900's, e.g., Lebau and Picon (1). By subsequent additions of a proton source, the system yielded the first successful partial reduction of a monobenzenoid system, as reported by Wooster and Godfrey (2), in 1937. As a result of that success a patent was issued to Wooster for the process (3). Little additional work was reported until Birch and his co-workers picked up the investigation in the early 1940's. It was …

Perspectives In Hospital Pharmacy Design Based On Functional Requirements, Robert Kenneth Overend

University of the Pacific Theses and Dissertations

It is significant that the separation of pharmacy from medicine occurred for the first time in institutions under ecclesiastic authority which were devoted to the care of the sick. In this period of history, there was little division between the church and state; therefore, business did not play any part in the overall health care scheme. The prime consideration was the delivery of the highest quality of pharmaceutical and medical services. This was best accomplished by a division of labor between the expert in the medical treatment and the expert in the selection, preservation and prepagation of medicinals. In other …

The Identification Of Barbiturates By Attenuated Total Reflectance, Robert Lewis

University of the Pacific Theses and Dissertations

The use of Attenuated Total Reflectance as an analytical technique in infrared spectroscopy has become increasingly important in the past few years. ATR (Attenuated Total Reflectance) is a relatively new analytical method. Producing spectra of compounds by this method requires no solvent for dissolving the sample and no salts for making pellets. The only requirements for spectra production, similar in quality to those produced by conventional methods, are that there is enough sample to cover both sides of the reflector be similar. The index of the sample is fixed; therefore, the index of the reflector is controlled by selecting a …

Une Nouvelle Espèce Africaine Du Genre Stenasellus (Crustacea Isopoda Asellota) Du Bassin Du Niger, J. A. Birstein

International Journal of Speleology

The representatives of the genus Stenasellus (sensu lato) in Africa have been previously known from Cote d’lvoire, bassin of the Congo and Somali. The new species of this genus was collected from the well in the town Sicascau (Mali). This species differs from all others in the structure of the carpopodites of pereopods II-IV which are enlarged and armed with multiple curved spines. This character shows a distinct sexual dimorphism. In all other features St. laticarpus sp.n. belongs to the group of St. gjorgjevici Rac. and shows the closest resemblance to St. africanus Monod. It is now preferable …

A Propos Du Stenasellus Laticarpus Birstein (Crustacea Isopoda Asellota), Guy Magniez

International Journal of Speleology

The species Stenasellus laticarpus Birstein is closely related to three west-African Stenasellidae, forming the genus Magniezia Lanza. It belongs to the same genus: Stenasellus laticarpus = Magniezia laticarpa (Birstein).

Diploures Campodéidés Des Grottes Du Pendjab (Simlacampa Clayae), C. Bareth, B. Condé

International Journal of Speleology

Four new specimens of Simlacampa clayae Condé, found in two caves in Pundjab (India), give opportunity to improve the original diagnosis and to describe two males and one immature.

La Migration Des Trichoptères Cavernicoles. Mise En Évidence Par Piégeage Lumineux, Yvette Bouvet

International Journal of Speleology

The Trichoptera from the group “Stenophylax” are frequent in caves. Until now, following Jeannel’s thought (1926), most authors believed that these animals were found in caves by hazard and were doomed to perish in them. With the use of a light trap it is now demonstrated that cavernicolous Trichoptera not only stay in caves during the entire summer, but also that during autumn (September-October) they leave the caves to lay their eggs in the nearby rivers.

The Evolution Of The Eastern North American Isopods Of The Genus Asellus (Crustacea: Asellidae). Part I, Laurence E. Fleming

International Journal of Speleology

This paper is the first in a three part series concerned with the evolution of North American isopods of the genus Asellus. It contains the descriptions of four new species of isopods and a list of pertinent new range data of presently known species.

Essai Sur La Faune Cavernicole De Bulgarie. Iii. Résultats Des Recherches Biospéologiques De 1966 À 1970, P. Beron

International Journal of Speleology

The present research follows two other earlier papers on the Bulgarian cave fauna (1962 and 1967). The three papers regroup the data on 431 Bulgarian karst caves, more or less studied from a biospeleological point of view. In this paper one will find a list of 147 new caves and pits with 293 animal species, of which 154 have not been mentioned in the earlier papers. A reference list containing 55 titles has been attached.

Temperature And Relative Humidity Responses Of Two Texas Cave-Adapted Millipedes, Cambala Speobia (Cambalida: Cambalidae) And Speodesmus Bicornourus (Polydesmida: Vanhoeffeniidae), Eddie Bull, Robert W. Mitchell

International Journal of Speleology

The temperature and relative humidity preferences and tolerances of two Texas species of cave-adapted millipedes, Cambala speobia (Chamberlin) and Speodesmus bicornourus Causey, were studied. Both species showed gross preferences when tested in gradient chambers for temperatures and relative humidities approximating those of their cave environments. But C. speobia, the less adapted species morphologically, was the more selective of the two species for such conditions. S. bicornourus was far less tolerant of elevated temperatures and reduced relative humidities than was C. speobia. Discussed is a possible reason why a terrestrial troglobite like S. bicornourus would combine intolerance with a …

Deux Stenasellidae Cavernicoles Nouveaux De L'Amerique Centrale: Mexistenasellus Parzefalli N. Sp. Et Mexistenasellus Wilkensi N. Sp. (Crustacea Isopoda Asellota), Guy Magniez

International Journal of Speleology

Description of the females of two new species of the family Stenasellidae (anophthalmous and unpigmented Asellota from underground waters). They were found in a little cave of San-Luis Potosi state (Mexico).

Un Aselle Cavernicole D'Espagne Méridionale: Proasellus Solanasi N.Sp. (Crustacea, Isopoda, Asellota), Jean-Paul Henry, Guy Magniez

International Journal of Speleology

Description of a new, unpigmented and eyeless species of the genus Proasellus Dudich, from an underground stream in the province of Malaga (Southern Spain). It belongs to the phyletic line which gave rise to the modem epigean water-slater Proasellus rneridianus (Racovitza).

Optic Regression In A Subterranean Mysid (Crustacea, Mysidacea), C. N. Nath, D. M. Thampy, N. K. Pillai

International Journal of Speleology

The eyes of the blind subterranean mysid, Lepidomysis longipes are stalked and paired in the embryonic condition. They fuse together in the adult and the optic ganglia are enclosed in a single eyeplate. The ganglia are arranged in the form of an arc on either side anterodorsal to the brain inside the single eyeplate.

Untersuchungen Über Das Nervensystem Von Hexaurus Merkli J. Frivaldzsky (Coleoptera, Bathysciinae), Michail Kwartirnikov

International Journal of Speleology

The central nervous system of the beetle Hexaurus merkli J. Frivaldzsky corresponds to the formulae 2+2 / 0. The relative proportion of the corpora pedunculata reaches 5.5% and that of the olfactive lobes 6.8% of the total mass of the upper-exophagus ganglion. The under-exophagus ganglion corresponds to 29.5% of the total mass of the head-ganglion. It is furthermore demonstrated both in the upper- and under-exophagus ganglion that neurosecretory cells exist. Corpora allata and corpora cardiaca are also present.

Note On Lepidoptera From Bulgarian Caves, Andrzej W. Skalski

International Journal of Speleology

This paper is a report on Lepidoptera collected in 1960 and 1970 in some caves of the Lakatnik region in the Stara Planina Mts. (Bulgaria). The following species were found: Digitivalva granitella (Tr.), D. pulicariae (Klim.), Thiphosa sabaudiata Dup. and Autophila limbata Stgr. Two species, D. pulicariae (Klim.) and A. limbata Stgr. are new for the cave-fauna and fauna of Bulgaria.

Etude Comparée Du Comportement Alimentaire De Deux Poissons Cavernicoles (Anoptichthys Jordani Hubbs Et Innes Et Caecobarbus Geertsi Blgr.), Georges Thinès, Nicole Wissocq

International Journal of Speleology

Systematic experiments on the cave-fishes Anoptichthys jordani and Caecobarbus geertsi show that the vertical orientation of swimming behaviour can be significantly modified by feeding the fishes during a period of 8 days before the experiments, either with food dropping to the bottom (Tubifex) or with food floating on the surface of the water (dried Daphnia). The observations have been quantified by recording systematically the position of the fishes in height in an aquarium divided in 3 levels of observation. The position of the fishes was recorded every 10 seconds during a total period of 15 minutes, divided in 3 periods …

A New Genus Of Bulgarian Cave Spiders (Protoleptoneta Bulgarica N.G., N. Sp., Leptonetidae), Christo Deltshev

International Journal of Speleology

A new genus Protoleptoneta (P. bulgarica n. g., n. sp.) is described, which was collected in caves of the Western Balkan mountains - Bulgaria. The new genus unites features of the genera Leptoneta and Paraleptoneta but there are many differences, which divide it from these genera. It differs from Leptoneta as follows: the tarsus of male palp does not possess the characteristic apophysa of Leptoneta; the tarsus is less depressed and does not branch out; the teeth of chelicerae are equable and equidistant. It differs from Paraleptoneta as follows: the femora of male palp is spineless; near the …

Les Surfaces Cuticulaires Des Gnathopodes De Deux Crustacés Amphipodes: Niphargus (Gammaridé Hypogé) Et Gammarus (Gammaridé Épigé), Evelyne Sellem

International Journal of Speleology

Niphargus virei and N. schellenbergi (hypogean Gammarids) as also Gammarus pulex pulex (epigean Gammarid) show on the Gn1 and Gn2 of both sexes ornamented areas which were studied with a scanning electron microscope. The ornamentations are built up of teeth. These are simple in Gammarus pulex pulex and present a sexual dimorphism on the meropodite. In N. schellenbergi and N. virei they are as often as not grouped by three. In Orchestia (Talitrid) the teeth have their bases fusioned which forms pectinate scales showing a sexual dimorphism. Outside these areas, the gnathopod cuticle of N. virei, N. schellenbergi and …