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A System Model Of Shawnee Indian Migration, Jerry E. Clark

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Existing theories or "laws" of migration prove to be inadequate for understanding and explaining the widespread migration of the Shawnee Indians. By viewing Shawnee migration as a system, their movement from place to place can be understood in terms of cultural, historical, and environmental variables. Migration to and from Alabama and eastern Pennsylvania indicates how these variables operated to make a particular location favorable or unfavorable for the Shawnee.

Isolation Of Trivittatus Virus From Aedes Triseriatus, Terry L. Foxhoven, Ardyce B. Welch

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Aedes triseriatus mosquitoes were trapped and processed for viral isolation. Swiss white mice and BHK-21 cell cultures were used for propagation of virus. A sucrose-acetone extracted antigen was produced from infected mouse brains. Anti-serum was produced in Swiss white mice as hyperimmune ascitic fluid using Sarcoma 180/TG. The isolate was identified using hemagglutination, hemagglutination-inhibition, and serum neutralization techniques. The virus was identified as California group arbovirus, type Trivittatus.

This is the first reported isolation of California group arbovirus, type Trivittatus virus from field samples of A. triseriatus mosquito and the first time the virus has been isolated from any species …

A Preliminary Study Of Seed Predators Of Platte Thistle In The Nebraska Sandhills, William O. Lamp, M. K. Mccarty

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The biology and infestation patterns of three seed-feeding insects were investigated in Platte thistle populations (Cirsium canescens Nutt.). The insects have been identified as Paracantha culta (Wiedemann), Orellia occidentalis (Snow), and Homoeosoma stypticellum (Grote). Factors determining infestation patterns were studied by collecting 75 post-bloom heads from three Sandhills sites on June 16, 1977. Mean number of insects per head was 0.55 for P. culta, 4.3 for O. occidentalis, and 3.3 for H. stypticellum. Insects were present in 97 percent of the heads. Competition between species was reduced by differences in time of active growth of the …

A List Of The Mosses Of Buffalo And Kearney Counties, Nebraska Held In The Kearney State College Herbarium, Marvin C. Williams, Linda L. Spessard

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A check list of the mosses of Buffalo and Kearney counties is presented. Most records are new for the counties and two new state records are listed.

The Biostratigraphy Of Arvicoline Rodents In North America, Larry D. Martin

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Arvicoline rodents are presently the most useful biostratigraphic tools in North America for the correlation of continental sediments that are Blancan in age or younger. Recent work in the Central Great Plains suggests that they also may have value for intercontinental correlations. About one-third of the Blancan genera of arvicolines became extinct at the end of Blancan time, while the earliest post-Blancan faunas contain very few arvicolines. The fauna from beneath the "type-S Pearlette Ash" at the type section of the Sappa Formation (1.2 million years B.P.) contains the earliest dated record of a Microtus-like microtine (Allophaiomys) …

Variation And Evolution In The Premolar Teeth Of Osteoborus And Borophagus Canidae, K. A. Richey

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Seven graphs analyze the important dimensions and proprtions of the premolars in the described species of Osteoborus and Borophagus. Grids or scales of standard deviation multiples for a standard population (Coffee Ranch) are superimposed on the graphs. A graph of the relative width of P/4 plotted against the absolute width of M/1 shows, among other things, that Aelurodon validus does not belong in Osteroborus. The graphs show exactly the relations of isolated specimens and types to each other but do not resolve completely the fundamental uncertainties regarding their species or biostratigraphic positions. Species, as presently constituted, may differ …

Contributions Of Pierre Paul Broca To Cancer Genetics, Anne J. Krush

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Pierre P. Broca was born in a small town near Bordeaux, France, June 28, 1824, the son of a Huguenot physician. After graduation from a local college, he entered medical school at the University of Paris at the age of 17, was graduated in three years. Five years later he received the M.D. degree, having special interests in pathology, anatomy, and surgery. In 1853 he was appointed assistant professor at the Faculty of Medicine and surgeon of the "Central Bureau." Broca made significant scientific and clinical contributions in all of the above fields as well as in anthropology. He founded …

Humanities In Medical Education- The Past Ten Years, James J. Quinn

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

What has always fascinated me is an historical account that ends triumphantly but whose start-to-finish is riddled with reversals and hostile obstacles and haunted by anguishing circumstances. The history of "humanities in medical education- the past ten years" in the United States is just such a story. In the last ten years there has been a continually wider acceptance of humanities in United States medical schools, i.e., a growing number of schools introducing the humanities, a growth in the quality and scope of programs being offered, and a greater acceptance of the humanities as an integral part of the medical …

Roman Concrete: The Ascent, Summit, And Decline Of An Art, Thomas Nelson Winter

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The evidence of the surviving literature and structure provides this chronology for the development of concrete: Fronto dates for us, by naming consuls, two aqueducts utterly devoid of concrete at 312 and 272 B.C. From Cato, who died in 149 B.C., we can discern that (a) concrete has now become the normal foundation for building, (b) limeburning is now an established trade, and (c) his recipe for cement is primitive-even medieval-and non-hydraulic. The year 140 saw the opening of the Marcian Aqueduct, its water-channel lined in non-hydraulic cement. Vitruvius, ca.25 B.C., describes different cement formulations for different purposes, even giving, …

Saint Thomas Aquinas' Division Of The Sciences, Marvin E. Kanne

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Saint Thomas Aquinas holds that scientific knowledge is attained when observable phenomena and their properties are accounted for in terms of their relations to their causes. On establishing the divisions of the sciences, Aquinas follows the threefold division of the speculative sciences as proposed by Aristotle and handed on to the Middle Ages by Boethius: natural philosophy, mathematics, and theology. Each science is defined by its subject matter and by its method of procedure.

While Aquinas followed the teachings of Boethius on this point, he makes significant additions and alterations. Thus in his analysis Aquinas focuses his attention on the …

The Role Of Cuticular Strata Nomenclature In The Systematics Of Nemata, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A system of cuticular nomenclature based on the strata observed in Enoplia is proposed. Nematode cuticle is divided into four fundamental strata: epicuticle, exocuticle, mesocuticle, and endocuticle. Application of this system allows the correlation of complementary strata throughout Nemata. The major taxonomic categories within Nemata are differentiated on the basis of their cuticular strata as compared with the Enoplia model cuticle.

A Filamentous Bacterium On The Brine Shrimp And Its Control, Mobashir A. Solangi, Robin M. Overstreet, Ann L. Gannam

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A strain of a colorless, filamentous bacterium (tentatively identified as Leucothrix mucor) heavily infests the brine shrimp, Artemia salina. Its ultrastructure, unlike that of some other strains, does not reveal a distinct middle layer between its outer cell wall layer and cytoplasmic membrane, irregular blebs extending from the cell layers, or an external sheath. An entire infestation, represented as a mat of the bacterium with associated debris and microorganisms, sloughs from the shrimp when exposed to a variety of treatments. Primarily because most effective treatments are toxic to the shrimp, 100 ppm terramycin provides the treatment of choice.

Preface To Host-Parasite Interactions, Edited By Brent B. Nickol, Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Preface to Host-Parasite Interactions, edited by Brent B. Nickol, proceedings of a symposium held at the University of Nebraska-Lincoln, Lincoln, Nebraska, U.S.A., October 5-7, 1977.

Scanning And Transmission Electron Microscopy Of The Oocyst Wall Of Isospora Lacazei, Clarence A. Speer, Alan A. Marchiondo, Bodo Mueller, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The oocyst wall of Isospora lacazei from sparrows was studied with scanning (SEM) and transmission (TEM) electron microscopy. In TEM, t he oocyst wall consisted of four distinct layers (Ll-4). The innermost layer, Ll, was moderately electron-lucent and 240-285 nm thick; L2 was electronJense and 210-240 nm thick; L3 was moderately electron-lucent and 15-150 nm thick; L4, the outer most layer, was discontinuous and consisted of electron-dense discoid bodies which measured 180-220 nm x 320-840 nm. The discoid bodies of L4 as seen by TEM appeared spheroid in shape when observed by SEM. One or two membranes were situated on …

Endoparasites, John E. Ubelaker, Robert D. Specian, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The leaf-nosed bats of the New World family Phyllostomatidae occur from the southwestern United States through tropical Central and South America. Members of this family are also found throughout the Antilles. The ecological associations of the species in this family seem to be rather broad; species are found in humid tropical to semiarid and arid subtropical environments. Diversity in feeding is readily apparent ranging from nectivores (Glossophaga), frugivores (Artibeus), sanguivores (Desmodus), to omnivores (Phyllostomus) (see review by Glass, 1970; Gardner, this volume).

To understand better the biology of phyllostomatid bats, it is …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large. triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cutick of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse groove …

Paravitellotrema Overstreeti Sp. N. (Digenea: Hemiuridae) From The Colombian Freshwater Stingray Potamotrygon Magdalenae Dumeri, Daniel R. Brooks, Monte A. Mayers, Thomas B. Thorson

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Paravitellotrema overstreeti from the freshwater stingray Potamotrygon magdalenae in northern Colombia most closely resembles P. thorsoni by possessing a muscular sinus organ and sinus sac as well as exhibiting a saccate rather than elongate prostatic vesicle, It differs by possessing lobate rather than spherical vitellaria, a smaller sinus organ and sinus sac, elongate rather than diamond-shaped prostatic cells enclosed in a delicate membrane rather than free in the parenchyma, and a metraterm joining the hermaphroditic duct immediately anterior to the prostatic vesicle rather than at the base of the sinus organ,

Neopronocephalus Orientalis Sp. N. (Digenea: Pronocephalidae) And Spirhapalum Elongatum Rohde, Lee, And Lim, 1968 (Digenea: Spirorchiidae) From Cuora Amboinensis (Daudin) In Malaysia, Daniel R. Brooks, James R. Palmieri

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Neopronocephalus orientalis from Cuora amboinensis in Malaysia most closely resembles N. spinometraterminis from Kachuga tectum tentoria in India by possessing postovarian cecal tips and an average of more than 30 vitelline follicles, but differs by having equatorial rather than preequatorial testes which are mostly intercecal rather than extracecal and a slightly smaller cirrus sac, Neopronocephaius spinometraterminis purportedly has spines in the metraterm and a common genital pore, whereas N . orientalis exhibits nonstaining wrinkled epithelium lining the metraterm and separate genital pores. Spirhapalum elongatum was also collected from its type host near the type locality.

New Records For Amphibian And Reptile Trematodes, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

From 1975 to 1978, 200 amphibians and reptiles from localities in Nebraska, Arkansas, Oklahoma, Louisiana, Mississippi, Florida, North Carolina, and West Virginia were examined for trematode parasites. This report provides additional information concerning the geographical distribution of North American amphibian and reptile trematodes. Some results have already been published (Brooks and Fusco, 1978, J. Miss. Acad. Sci. 23:95-99). Worms, removed from their hosts, were examined alive when possible, and fixed with AFA after flattening with slight coverslip pressure. Specimens were stored in 7{)1lO ethanol, then stained with Mayer's hematoxylin and mounted in Histoclad or Canada balsam for study as whole …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large . triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cuticle of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse …

Oligacanthorhynchus Lamasi (Freitas And Costa, 1964) Comb. N. From Domestic Cats Of Brazil, J. F.R. Amato, Brent B. Nickol, O. M. Froes

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Freitas and Costa (1964, Arq. Esc. Vet. Univ. Fed. Minas Gerais 16:231-234) described a new species, Echinopardalis lamasi, from two acanthocephalans (1 male, 1 female) of a cat, Felis domestica (=F. catus), captured in Belo Horizonte, Minas Gerais. These specimens have been lost (Freitas, 1975, personal communication). Until two of 127 domestic cats, F. catus, from Porto Alegre, Rio Grande do SuI, captured between October 1973 and July 1976, were found to harbor respectively two and nine acanthocephalans conspecific with those described by Freitas and Costa, no additional specimens of this species were available for study. These new specimens assist …

Glucocorticoid Modulation Of Casein Gene Transcription In Mouse Mammary Gland, Ranjan Ganguly, Nozer M. Mehta, Nivedita Ganguly, M. R. Banerjee

School of Biological Sciences: Faculty Publications

The influence of cortisol and prolactin on casein gene expression in the mammary gland of lactating BALB/c mice was measured by using a specific cDNA probe to 15S casein mRNA (cDNA_csn). Casein mRNA (mRNA_csn) level in the mammary gland was decreased by 85% 5 days after adrenal ablation, but then was increased 4.4-fold 12 hr after a single injection of hydrocortisone-21-acetate. An 80% decrease in serum prolactin level, induced by the prolactin inhibitor 2- bromo-α-ergocryptin (CB-154), did not alter the level of mRNA_csn in the gland. Specific transcription of the casein gene in nuclei isolated …