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Reproductive Biology Of The Rat Lungworm Angiostrongylus Cantonensis (Metastrongyloidea: Angiostrongylidae), Grace Spatafora Harris

Master's Theses

Twenty rats (Rattus norvegicus) received infective inocula of 5, 10, 20, and 40 third-stage larvae of Angiostrongylus cantonensis. The effects of varying doses of larvae on prepatent period larval production, worm establishment, worm size, and fertility were studied. The aquatic gastropod Biomphalaria glabratta was the experimental intermediate host.

The duration of the prepatent period varied from 37 to 45 days. The shortest prepatent period was observed in animals that received the highest infective inoculum. The prepatent period showed a significant inverse relationship with increasing inoculum size. Larval production increased logarithmically, followed by a plateau phase. The number of larvae per …

Karyotypic Relationships Within The Short-Tailed Shrews, Genus Blarina, Sarah B. George, Hugh H. Genoways, Jerry R. Choate, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

Short-tailed shrews of the genus Blarina exhibit considerable geographic variation in both diploid number and fundamental number. Four chromosomal groups are recognized within the genus: Blarina brevicauda, FN = 48; 2N = 50, 49, or 48; B. carolinensis, FN = 45 or 44; 2N = 46, 39, 38, or 37; B. c. peninsulae, FN = 52; 2N = 52, 51, or 50; B. hylophaga, FN = 62, 61, or 60; 2N = 52. B. c. peninsulae also may be a distinct species, but exact determination must await location and analysis of a zone of contact with …

Spermidine-Condensed Phi X174 Dna Cleavage By Micrococcal Nuclease: Torus Cleavage Model And Evidence For Unidirectional Circumferential Dna Wrapping., Kenneth A. Marx, Thomas C. Reynolds

Dartmouth Scholarship

Spermidine-condensed phi X174 replicative form (RF) II DNA was digested with micrococcal nuclease to yield seven identifiable DNA bands forming an arithmetic fragment-length series. The DNA monomer unit length was found to be 780 +/- 80 base pairs. This result is most consistent with a proposed model for micrococcal nuclease cleavage of a DNA torus organized by the unidirectional, circumferential wrapping of B-geometry DNA. By a topological consideration, the blunt-end-rod-fusion model for torus formation [Eickbush, T. H. & Moudrianakis, E. N. (1978) Cell 13, 295-306] is shown to be inconsistent with our empirical solution results. We propose a continuous, circumferential …

State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1980/81 was $82.8 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $100 million.

Bulletin No. 28: The Connecticut Arboretum: Its First Fifty Years 1931 - 1981, George S. Avery, William A. Niering, Richard H. Goodwin

Bulletins

56 pp. 1982. Historical accounts of the formation and growth of the Arboretum.

Oncogenes: Evolutionary Hitchhikers: [Dr. Hidesaburo Hanafusa], Fulvio Bardossi, Judith N. Schwartz

Rockefeller University Research Profiles

Rockefeller University Research Profiles are a series of scientific profiles that were published quarterly, from 1980-1990, by the Rockefeller University. Each issue features the research and achievements of an individual Rockefeller University scientist.

San José Studies, Fall 1982, San José State University Foundation

San José Studies, 1980s

Volume 8, Issue 3

Moose-Vehicle Accidents In Ontario: Relation To Highway Salt, David Fraser, Evan R. Thomas

Anthropogenics and Population Decline Collection

No abstract provided.

Utilization Of The Intact Male For Red Meat Production: A Review, S. C. Seideman, H. R. Cross, R. R. Oltjen, B. D. Schanbacher

Contraception and Sterilization

Castration has long been a traditional practice in the United States. Research studies indicate that intact males grow more rapidly, utilize feed more efficiently and produce a higher-yielding carcass with less fat and more edible product. The disadvantages of the intact male include aggressive behavior (bull and boar); undesirable odors and flavors (boar and ram); lower quality grade (bull); lower meat tenderness (bull and ram) and undesirable meat color (bull and ram). Research is needed to develop antemortem and(or) postmortem handling procedures that offset the disadvantages of the intact male so that the meat and livestock industry can take advantage …

Agricultural Experiment Station News October 1982

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
Grants, Contracts and Cooperative Agreements - FY 1982
New AES Leadership
SAHS SEZ
EXPERIMENT STATION SEMINAR
INSTRUMENT REPAIR SERVICE
NEW AND REVISED PROJECTS
GRANTS AND CONTRACTS
CALENDAR OF EVENTS
New Experiment Station Personnel
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - September 1982

South Dakota Farm And Home Research (Fall 1982), South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

This issue contains the 95th South Dakota Agricultural Experiment Station Annual Report. This report covers July 1, 1981 - June 30, 1982.

Director’s comments [p] 2 “advisors tell us adjust our basic: applied research ratio”
Mr. Farmer: call E-T [p] 3 “or listen to the radio for irrigation scheduling help”
Mr. J. [p] 6 “radio transmitter in his tummy tells us what’s going on inside”
‘Jack-of-all-trades’ [p] 11 “That’s a research station manager; mostly he’s a farmer”
SEI/TES [p] 13 “it’s portable; it’s reliable; and it pays you money back”
Consultation [p] 16 “Reps from 47 organizations rate work of …

Damage Potential Of Adult And Larval Southern Corn Billbugs (Coleoptera: Curculionidae) On Field Corn In Eastern North Carolina, Robert J. Wright, J. W. Van Duyn, J. R. Bradley Jr.

Department of Entomology: Faculty Publications

Adult and larval damage potential of the southern corn billbug (SCB), Sphenophorus callosus (Olivier), was studied in small-plot enclosures and in commercial cornfields in eastern North Carolina from 1978 to 1980. In small-plot studies, corn at the two- and four-leaf stages showed damage by adult SCB at several insect densities, but more mature corn was not visibly damaged. Female SCB caused more damage than male SCB on three- to four-leaf stage corn. Damage by females tended to result in dead terminals, whereas feeding by males more often resulted in holes in the leaves. In small-plot studies, average plant height per …

Initial Changes In Fish Species Composition In Two New Lakes Of The Tennessee-Tombigbee Waterway, Alabama-Mississippi, Tom J. Timmons

Southeastern Fishes Council Proceedings

No abstract provided.

Number 13 (October 1982), Southern Fishes Council

Southeastern Fishes Council Proceedings

Initial Changes in Fish Species Composition in Two Lakes of the Tennessee - Tombigbee Waterway, Alabama-Mississippi. By T.J. Timmons, 4 pp.

Rhizobium Japonicum Mutants Defective In Symbiotic Nitrogen Fixation, K. Dale Noel, Gary Stacey, Lin E. Silver, Winston J. Brill, Shiv R. Tandon

Biological Sciences Faculty Research and Publications

Rhizobium japonicum strains 3I1b110 and 61A76 were mutagenized to obtain 25 independently derived mutants that produced soybean nodules defective in nitrogen fixation, as assayed by acetylene reduction. The proteins of both the bacterial and the plant portions of the nodules were analyzed by two-dimensional polyacrylamide gel electrophoresis. All of the mutants had lower-than-normal levels of the nitrogenase components, and all but four contained a prominent bacteroid protein not observed in wild-type bacteroids. Experiments with bacteria grown ex planta suggested that this protein was derepressed by the absence of ammonia. Nitrogenase component II of one mutant was altered in isoelectric point. …

Intellectual Traditions In The Life Sciences: Molecular Biology And Biochemistry, Scott F. Gilbert

Biology Faculty Works

No abstract provided.

Morphological Variation Of The Foraminifer Elphidium Excavatum (Terquem) On Crumps Bank And Willoughby Bank, Chesapeake Bay, Virginia, Pamela Kay Painter

OES Theses and Dissertations

Six variants of the highly variable foraminiferal species, Elphidium excavatum (Terquem) were recognized in the Crumps Bank and Willoughby Bank areas of the southern Chesapeake Bay. Measurements of the size of the test, the number of chambers, the number of umbilical bosses, and the number and average length of the sutural bridges on the last formed chamber, and opaqueness or translucence of the test were made on 30 specimens from each of 36 stations selected for differences in environmental parameters. The measurements were statistically analyzed by discriminant analysis to test the hypothesis that the variants are distinct morphotypes and to …

Factors Effecting Phytoplankton Assemblages In The Lafayette River Estuary, Laurie Ann Kalenak

OES Theses and Dissertations

Chemical and physical parameters were measured with phytoplankton species composition and abundance in the Lafayette River from August to October 1981. Stations located in four distinct areas of the river were statistically analyzed to determine data relationships. Environmental factors considered as potentially influencing the presence and numbers of phytoplankton were salinity, temperature, Secchi depth, tidal phase, orthophosphate, combined nitrates and nitrites, ammonia, and reactive silicates.

The River mouth had higher salinity and nutrient values, with lower temperatures than the other river sections. Diatoms were the dominant cells in this section of the River. At mid-river, salinity and nutrient concentrations decreased, …

Environmental Influence On The Migratory Behavior Of The Brown Shrimp In Pamlico Sound North Carolina, Michael Andrew Matylewich

OES Theses and Dissertations

Environmental conditions in the nursery areas during times of development affect the migratory behavior of the brown shrimp (Penaeus aztecus) by influencing growth and natural mortality. A linearized logistic model and a multiple linear model are used to relate environmental factors (week number, water temperature, salinity, air temperature, precipitation, net heating degree days, river discharge) to the cumulative proportion of catch and catch-per-unit-effort, respectively. Multiple regression analysis yielded equations containing the week number, the water temperature and an interaction term as the independent variables. Predictions of total annual yield and total annual catch-per-unit-effort are made using the migratory …

The Effects Of Salinity On Growth And Survival Of The Blue Tilapia Oreochromis Aureus (Steindachner) (Pisces Cichlidae), Maylon Lowell White Jr.

OES Theses and Dissertations

The growth rate of the blue tilapia, Oreochromis aureus, was measured in fresh water, 15 ‰ salinity, and 30 ‰ salinity. The fish were given a hormone-treated feed to sex-reverse the females. Acclimations were achieved by raising the salinity only 5 ‰ per day. A biofilter and frequent water changes were used to maintain water quality in each 40 1 system. Synthetic sea salts were used to achieve desired salinity. The fish were grown for 87 days at 27°-30° C.

So significant difference in growth rate occurred among the three treatments. Salinity did not influence mortalities. All fish appeared to …

The Effects Of Varying Fresh Water Discharge On Dispersion In An Estuarine Hydraulic Model Of The Lafayette River, Norfolk, Virginia, Michael J. Jugan

OES Theses and Dissertations

Three experimental tests were conducted in the Lafayette River branch of the Chesapeake Bay Hydraulic Model, each successive test with an increase in the amount of fresh water discharged into the head of the river. This was done to study the response from varying river discharge on mixing parameters including the longitudinal dispersion coefficient (E).

The model generated a tide of constant range and period. Batch releases of Rhodamine WT dye were made in the model and sampled throughout the river for ten tidal cycles. Samples were taken simultaneously at selected high and low water slack.

The calculation of the …

Natural History Of The Porcine Bioprosthetic Heart Valve, Donald J. Magilligan Jr., Joseph W. Lewis Jr., J. Lancelot Lester Iii, Paul D. Stein, Mohsin Alam, Jeffrey B. Lakier, Julio C. Davilia, David W. Smith

Henry Ford Hospital Medical Journal

The porcine bioprosthesis has been the prosthetic valve of choice at Henry Ford Hospital since October 1971. By 1979, 23 cases of degeneration had been seen, and the rate seven years after implantation was 16%. Now, with a ten-year follow-up, there are 41 degenerated valves. After seven years, the percent free of degeneration is 88%, (SE of 2% [standard error]); at eight years, 82% (SE of 2.9%,); at nine years, 80% (SE of 3.4%); and at ten years, the percent free of degeneration is 69% (SE of 6.5%,). There was no difference in degeneration between men and women, between aortic …

Immunological Involvement In Porcine Bioprosthetic Valve Degeneration: Preliminary Studies, Rollin H. Heinzerling, Paul D. Stein, Jeanne M. Riddle, Donald J. Magilligan Jr., John J. Jennings

Henry Ford Hospital Medical Journal

Preliminary animal model studies have indicated that porcine bioprosthetic valves can be recognized by the immune system. This report presents the results of a preliminary investigation on the implanted valves of 27 patients. While none of the 27 demonstrated an immune response to porcine serum proteins, five patients developed antibodies against the implanted valve leaflets. Cells were enzymatically eluted from a degenerated bioprosthetic valve and were classified by means of monoclonal antibodies. Although these cells were not found to be of T-lymphocyte lineage, they did express la determinants and had the morphologic appearance of plasma cells. We therefore conclude that …

Agricultural Experiment Station News September 1982

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
EXPERIMENT STATION SEMINAR
PROTECTION OF HUMAN SUBJECTS
PROGRESS AT THE GUDMUNDSEN SANDHILLS RESEARCH CENTER
25TH ANNIVERSARY AND FIELD DAY NORTHEAST STATION
SAHS SEZ
CALENDAR OF EVENTS
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - August 1982

The Surgeon And The Patient With Cancer: The Development Of Surgical Oncology, Angelos A. Kambouris

Henry Ford Hospital Medical Journal

No abstract provided.

Memorials: Vincent H. Arthauld, Kenneth J. Drewry, David L. Mackintosh

Department of Animal Science: Faculty Publications

Vincent H. Arthaud, Professor Emeritus of the Animal Science Department, University of Nebraska, Lincoln, died at his home August 7, 1982. He was born September 7, 1911 at Cambridge, Nebraska and was reared on a general livestock farm in Southwest Nebraska. After receiving his B.S. degree in Animal Husbandry in 1936 from the University of Nebraska, he returned to his home area and engaged in general farming. He served with the U.S. Army from 1942 to 1945 and joined the Animal Science Department in 1945 as Research Farm Manager. He retired in 1977 following his many years of service as …

Dispermic Origin And Clinical Outcome Of Three Complete Hydatidiform Moles With 46,Xy Karyotype, U. Surti, A. E. Szulman, S. O'Brien

Biology Faculty Articles

Three new cases of complete, classic hydatidiform mole with a 46,XY karyotype are described. They originated by dispermy as demonstrated by chromosome and enzyme analyses. Levels of human chorionic gonadotropin decreased to normal spontaneously within a short time, indicating a benign course in these three cases. Of a total of 18 cases reported to date, postoperative clinical information was available for 10 patients. Two of these 10 patients had a malignant course with lung metastases. It is of theoretical and clinical importance to establish the magnitude of the risk of malignancy for hydatidiform mole with a 46,XY karyotype. © 1982.

Height, Weight, And Fertility Among Participants Of The Third Harvard Growth Study, Eugenie Scott, Carl J. Bajema

Peer Reviewed Publications

The relationship between weight, height, weigh/height² and fertility is examined in 610 females and 621 males from a 1968 follow-up study of the Third Harvard Growth Study participants. These subjects were born between 1912 and 1918 in the USA. Their physical and mental growth were studies for up to 12 years while they attended public schools in Boston Massachusetts, area. Height is not significantly related to fertility in either females or males, but weight and weight/height² is positively related to fertility in females (r = +.117 and + .100 respectively) and weight/height² is positively related to fertility …

Vol. 6 No. 1 (1982): Pacific Studies Front Matter, The Jonathan Nāpela Center For Hawaiian And Pacific Islands Studies

Pacific Studies

Pacific Studies is published two times a year by The Jonathan Nāpela Center for Hawaiian and Pacific Studies, Brigham Young University Hawai‘i #1979, 55–220 Kulanui Street, Lāʻie, Hawai‘i 96762, but responsibility for opinions expressed in the articles rests with the authors alone. Subscription rate is US$40.00 yearly, payable to The Jonathan Nāpela Center for Hawaiian and Pacific Studies. The Jonathan Nāpela Center for Hawaiian and Pacific Studies (formerly The Pacific Institute) is an organization funded by Brigham Young University Hawai‘i. The Center assists the University in meeting its cultural and educational goals by undertaking a program of teaching, research, and …

Vol. 6 No. 1 (1982): Pacific Studies Full Issue, The Jonathan Nāpela Center For Hawaiian And Pacific Islands Studies

Pacific Studies

Pacific Studies is published two times a year by The Jonathan Nāpela Center for Hawaiian and Pacific Studies, Brigham Young University Hawai‘i #1979, 55–220 Kulanui Street, Lāʻie, Hawai‘i 96762, but responsibility for opinions expressed in the articles rests with the authors alone. Subscription rate is US$40.00 yearly, payable to The Jonathan Nāpela Center for Hawaiian and Pacific Studies. The Jonathan Nāpela Center for Hawaiian and Pacific Studies (formerly The Pacific Institute) is an organization funded by Brigham Young University Hawai‘i. The Center assists the University in meeting its cultural and educational goals by undertaking a program of teaching, research, and …