Life Sciences Commons^™

Vascular Plants Of The Sapa Bog, Joanne Kline

Field Station Bulletins

The vascular plants occurring within an acidic black spruce bog and its surrounding moat in southeastern Wisconsin are listed with observational notes on abundance and habitat. Of the 156 species, at least 20 are at or near the southern extent of their range, and four are currently State designated species of Special Concern.

Vegetation Development In Old Fields At The Uwm Field Station, Beth A. Krause, Diane De Steven

Field Station Bulletins

We studied abandoned fields at the UW-Milwaukee Field Station in 1990 to determine how previous cropping history and management practices have influenced present vegetation composition. Eleven fields were sampled for herbaceous species presence and coverage, and species compositions were analyzed by Detrended Correspondence Analysis ordination. Nearly all the fields were abandoned in the mid-1960's. Standing crop biomass of the herbaceous vegetation peaked in late July. Fields with very recent management (last 5 years) in the form of mowing or burning differed in species composition from fields without recent management and fields that have been unmanaged since abandonment. Species such as …

Effects Of Phenobarbital In Combination With Phenytoin Or Valproic Acid On The Delayed-Matching-To-Sample Performance Of Pigeons, Catherine Ann Karas

Masters Theses

The present study examined the effects of phenobarbital (S, 10,20, and 40 mg/kg), phenytoin (2.5, 5, 7.5, and 15 mg/kg), and valproic acid (40, 60, 80, and 120 mg/kg), and those of phenobarbital (10 and 20 mg/kg) in combination with phenytoin (2.5,5, and 7.5 mg/kg) or valproic acid (40, 60, and 80 mg/kg), on the delayed-matching-to-sample performance of pigeons. In general, high doses of each individual drug reduced accuracy. Drug combinations also reduced accuracy relative to control values. Reductions in accuracy produced by drug combinations were very similar in magnitude to those predicted by a response-addition model of drug interaction.

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director's comments Our special guest for this issue is SDSU President Robert Wagner, with some words of welcome to the NPBL ground breaking. [p] 2
The basics of biostress What is biostress? And how will the new laboratory fight it? Insights into the nature of the problems the NPBL was created to solve. [p] 3
Relationship building equips biostress building To outfit the new Biostress Laboratory with the finest new equipment, new funding relationships with foundations and corporations must be formed. [p] 6
Breaking the boundaries Cooperative research is the key as the NPBL presents new opportunities to interdisciplinary teams …

The Gamut: A Journal Of Ideas And Information, No. 32, Spring 1991, Cleveland State University

The Gamut Archives

CONTENTS OF ISSUE NO. 32, SPRING, 1991

Editorial

Louis T. Milic: The Cynic’s New Word Book, 2

Jane Ware: The Bones of Fort Laurens, 4

Excavating Ohio’s only Revolutionary War fort

Lawrence Martin: The Pickwickian Syndrome, 12

A deadly combination of obesity and too shallow breathing

Donald Dewey: Let’s Reorganize Major League Sports!, 25

Shouldn’t major league membership be based on performance?

Barbra Cunliffe Singleton: Walking the Wrong Way Around the Monastery, 31

Tibet’s cultural heritage is being erased under Chinese rule

John A.C. Greppin: The Language of the Babylonians and Assyrians, 37

Deciphering …

Santa Clara Magazine, Volume 33 Number 3, Spring 1991, Santa Clara University

Santa Clara Magazine

12 - ABORTION : NO SIMPLE ANSWERS Jesuit theologian Ted Mackin examines pro-life and pro-choice positions and reports that neither side is addressing the issue with total honesty. By Theodore J. Mackin, S.J.

16 - STAY AT HOME MOMS Alumnae discuss why they decided to devote all their time and attention to their families. By Michelle Burget Fletcher '78, Brigid Modena Benham '81, and Anne Penoyer King '69

20 - SCU's WINE FAMILIES Northern California's vineyards are fertile ground for Santa Clara graduates. By Rosina Wilson

28 - WORKING THE SUICIDE HOTLINE Within these walls, no secret is too terrible …

Describing The Flora Of The United States: Botanies At Libraries In Syracuse, Dudley J. Raynal

The Courier

The first written descriptions of the flora of North America were those of sixteenth-century Europeans who marvelled at the botanical treasures brought to them by explorers of the New World. The earliest account of American natural history was that of the English botanical explorer Thomas Hariot who wrote his Briefe and True Re, port of the New Found Land of Virginia in 1590 after returning from an expedition arranged by Sir Walter Raleigh. Hariot carried to En, gland tubers, fruits, and seeds of plants previously unknown in Europe. Perhaps thirty different plant species had been introduced into Europe from the …

Supercalender Variables For Release Liner, Douglas A. Lamb

Paper Engineering Senior Theses

This senior engineering design project studies the effect of increased steel roll temperature and increased sheet moisture on the supercalendering of uncoated release backing paper. Sheets were supercalendered using a Beloit Wheeler laboratory supercalender fitted with a temperature controller. The moisture of the sheets was adjusted using 20 and 80% R.H. humidity chambers.

An increase in gloss, densometer and reduction in caliper were evident with the increase of both the steel roll temperature and sheet moisture. Increased sheet moisture seemed to have little effect on the Sheffield Smoothness values. However, the increase in steel roll temperature did product improved smoothness.

The Cross Flow Filtration Concept Used As A Deinking Method, Gregory E. Gourlay

Paper Engineering Senior Theses

The cross-flow filter was used to deink a 70% news and 30% coated section furnish. This has never been attempted before so the main objective was to determine if it would work. The secondary objective was to find the highest operating consistency possible. The filter can be used to remove ink, fines and filler from a stock suspension. The feed, accept and effluent samples were analyzed for percent ash, brightness, clark classification, Kajanni fiber length analysis and image analysis. The effluent had a 29.81% ash compared to the feed ash of 8.32%. The accept brightness was 42.9 while the feed …

Reducing The Amount Of Microbiological Growth Using Ultrasonic Treatment, Mark Gill

Paper Engineering Senior Theses

This thesis explored the possibility of using ultrasonic treatment to reduce the amount of microbiological growth in a sample of contaminated mill wastewater. It was found that ultrasonic treatment reduces microbiological growth through the mechanism of cavitation. percent inhibition increases with both time of treatment and applied power. The most economical conditions were high power and a short treatment time.

The increase in cell volume had an inverse effect on the percent inhibition. The increase in consistency of the treated solution also had an inverse effect on the percent inhibition and 6% was the maximum treatable consistency.

Ultrasonic treatment was …

The Effects Of Residual Surfactant On The Retention Of Fines, Steve L. Myers

Paper Engineering Senior Theses

Research was conducted to determine if small amounts of non-ionic surfactants present in the papermaking furnish would effect fine particle retention.

The Britt Jar was used for the first part of this experiment to determine if the surfactant would affect the retention. The surfactant was tested at six different concentrations and no detrimental effects were seen.

Subsequent Britt Jar experiments were used to determine the effects of shear, and the effects of retention aids. These experiments were conducted primarily to see if they were interacting some way with the surfactant. The results showed no interaction.

The final part of the …

The Effect Of Coating Lubricants On Boxboard Hot-Melt Glueability, James R. O'Brien Jr.

Paper Engineering Senior Theses

Coating lubricants are commonly used in the folding boxboard industry to reduce dusting, improve gloss, increase dried coating flexibility, and modify coating slurry viscosity. Hot-melt adhesives are becoming increasingly popular among boxboard converters due to the strong bonds developed with very little set time. Very little is known about the interaction between the lubricants on the coating surface and adhesion developed with hot-melt adhesives.

In this study 100% recycled boxboard was coated on an air knife coater with a base coating and with 1%, 2%, 4%, and 8% calcium stearate and polyethylene glycol lubricants. The board was tested for Gardner …

The Effects Of Ph And Time On Fiber Surface Area, Daniel R. Norey

Paper Engineering Senior Theses

In an effort to integrate some of the diverse approaches to pulp swelling evaluation, this study incorporated various test to reveal the possible swelling changes occurring in a fiber. The scope of this report is to study the effects of pH and time of soaking in water on secondary fiber swelling and surface area.

For each trial, fibers were soaked for different times ranging between 0 and 25 hours. The trials consisted of three different samples which has pH's of 7.2, 9.2 and 11.5. This study involved three tests to help analyze any changes in the fiber. They are the …

Ecdysterone Regulatory Elements Function As Both Transcriptional Activators And Repressors., Leonard Dobens, Karen Rudolph, Edward M. Berger

Dartmouth Scholarship

A synthetic, 23-bp ecdysterone regulatory element (EcRE), derived from the upstream region of the Drosophila melanogaster hsp27 gene, was inserted adjacent to the herpes simplex virus thymidine kinase promoter fused to a bacterial gene for chloramphenicol acetyltransferase (CAT). Hybrid constructs were transfected into Drosophila S3 cells and assayed for ecdysterone-inducible CAT expression. In the absence of ecdysterone a tandem pair of EcREs repressed the high constitutive level of CAT activity found after transfection with the parent reporter plasmid alone. After hormone addition very high levels of CAT activity were observed. Insertion of the EcRE pair 3' of the CAT gene …

The Effect Of The Mixing Ratio Of Fly Ash And Paper Industry Sludge On Hydraulic Conductivity, Christine J. Lupu

Paper Engineering Senior Theses

Introduction

Groundwater contamination is a large concern for everyone. Because of this many precautions are being taken to protect the groundwater. In addition, the availability of landfill area is decreasing because of the difficulty in siting new landfills due to the latest legislation. Therefore, landfill and/or design alternatives must be created to reduce the increasing cost of landfilling.

Two of the major sources of waste produced by the pulp and paper industry are wastewater treatment sludge and fly ash from the combustion of wood waste and coal. The current disposal method of these two wastes are in landfills. Alternatives are …

Increasing The Hardwood Content On The Furnish By Separate Refining, David K. Finn

Paper Engineering Senior Theses

Introduction

It is an old papermaker's adage that paper is made in the beater. This means that the performance and the physical properties of the paper are determined by the type and the extent of the mechanical action to which the fibers are subjected before they are joined to form paper. The terms used to describe the function of refining; free beaten, wet beaten, et al are all traditionally vague, by reason of the complicated structure of the fibers and the even more complicated changes these fibers undergo during the refining process.

The Nebline, April 1991

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Contents:

Ag Update: Agricultural News & Events

Home Extension News

On-the-Grow: Horticulture News & Recommendations

The Cloverline: 4-H News and Events

Extension Calendar

and other extension news

Review Of Les Nématodes Syphaciinae, Parasites De Rongeurs Et De Lagomorphes. Taxonomie, Zoogéographie, Évolution By Jean-Pierre Hugot. Zoologie, Tome 141, Mémoires Du Muséum National D'Histoire Naturelle, Paris, 1988. E. J. Brill, Leiden, The Netherlands, Robert L. Rausch

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

Review of Les Nématodes Syphaciinae, Parasites de Rongeurs et de Lagomorphes. Taxonomie, Zoogéographie, Évolution by Jean-Pierre Hugot. Zoologie, Tome 141, Mémoires du Muséum National d'Histoire Naturelle, Paris. 1988. 148 p. + Appendix. Available from E. J. Brill, Leiden, The Netherlands.

Strain-Specific Neutralizing Determinant In The Transmembrane Protein Of Simian Immunodeficiency Virus, Toshiaki Kodama, Dawn P. Wooley, Daniel P. Silva, Fulvia Dimarzo Veronese, Ronald C. Desrosiers

Neuroscience, Cell Biology & Physiology Faculty Publications

Monoclonal antibody SF8/5E11, which recognizes the transmembrane protein (TMP) of simian immunodeficiency virus of macaque monkeys (SIVmac), displayed strict strain specificity. It reacted with cloned and uncloned SIVmac251 but not with cloned SIVmac142 and SIVmac239 on immunoblots. This monoclonal antibody neutralized infection by cloned, cell-free SIVmac251 and inhibited formation of syncytia by cloned SIVmac251-infected cells; these activities were specific to cloned SIVmac251 and did not occur with the other viruses. Site-specific mutagenesis was used to show that TMP amino acids 106 to 110 (Asp-Trp-Asn-Asn-Asp) determined the strain specificity of the monoclonal antibody. This strain-specific neutralizing determinant is located within a …

Theodore Alvin Hall: A Biographical Sketch And Personal Appreciation, Brij L. Gupta

Scanning Microscopy

As the first in a series of two papers contributed on the occasion of a special program held at the Scanning Microscopy/1989 meeting in Salt Lake City in honour of Dr. T.A. Hall, and in recognition of his achievements for biological electron probe X-ray microanalysis, this paper provides a biographical sketch of Dr. Hall, as well as a bibliography.

Life-History Correlates Of Taxonomic Diversity, John M. Marzluff, Kenneth P. Dial

Biological Sciences Faculty Publications

One of the most pervasive, nonrandom evolutionary patterns is extreme domination of a taxon by one subtaxon or only a few subtaxa. Domination refers to taxonomic diversity and the fraction of the taxon that is classified in the most diverse subtaxon. We attempt to explain how subtaxa come to dominate their phyletic counterparts by examining correlations between taxonomic diversity and life history traits such as age of first reproduction, longevity, fecundity and partitioning of reproduction, and resource availability in a variety of vertebrate, invertebrate, and plant groups. Regardless of taxonomic group or rank, the number of taxa within an assemblage, …

Three-Dimensional Structure Of Human Basic Fibroblast Growth Factor, A Structural Homolog Of Interleukin 1Β, Jiandong Zhang, Lawrence S. Cousens, Phillip J. Barr, Stephen R. Sprang

Biological Sciences Faculty Publications

The three-dimensional structure of the 146-residue form of human basic fibroblast growth factor (bFGF), expressed as a recombinant protein in yeast, has been determined by x-ray crystallography to a resolution of 1.8 Å. bFGF is composed entirely of β-sheet structure, comprising a three-fold repeat of a four-stranded antiparallel β-meander. The topology of bFGF is identical to that of interleukin 1β, showing that although the two proteins share only 10% sequence identity, bFGF, interleukin 1, and their homologs comprise a family of structurally related mitogenic factors. Analysis of the three-dimensional structure in light of functional studies of bFGF suggests that the …

Louisiana Agriculture Magazine, Spring 1991, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

The Role Of Inositol Phosphate Cascade In Visual Excitation Of Invertebrate Microvillar Photoreceptors, Tamara M. Frank, A. Fein

Marine & Environmental Sciences Faculty Articles

The identity of the transmitter(s) involved in visual transduction in invertebrate microvillar photoreceptors remains unresolved. In this study, the role of inositol 1,4,5-trisphosphate (IP₃) was examined in Limulus ventral photoreceptors by studying the effects on the light response of heparin and neomycin, agents that inhibit the production or action of IP₃. Both heparin and neomycin reduce responses to brief flashes of light and the transient component of responses to steps of light, and also inhibit IP₃-induced calcium release, indicating that IP₃ plays a direct role in invertebrate visual excitation. The effects of BAPTA, …

Ard News April 1991

Agricultural Research Division: News and Annual Reports

CONTENTS:
INFORMED CONSENT OF HUMAN RESEARCH SUBJECTS
PEER REVIEW
FACTS ABOUT RESEARCH FUNDING
AGRICULTURE IN PERSPECTIVE
LASER INTERFEROMETER GRAVITATIONAL WAVE OBSERVATORY
RACE/ETHNICITY TRENDS IN Ph.D. DEGREES AWARDED BY U.S. INSTITUTIONS OF HIGHER EDUCATION
RACE/ETHNICITY TRENDS IN M.S. DEGREES AWARDED BY U.S. INSTITUTIONS OF HIGHER EDUCATION
"AGRICULTURE IN CONCERT WITH THE ENVIRONMENT" PROGRAM
NEW OR REVISED PROJECTS
GRANTS AND CONTRACTS RECEIVED FEBRUARY & MARCH, 1991
THE U.S. AGRICULTURE AND FOOD SYSTEM
CHARACTERISTICS OF NORTH CENTRAL REGIONAL RESEARCH PROGRAM
CHARACTERISTICS OF SAESs - 1989

Preparing Fabric For Use, Rose Marie Tondl

University of Nebraska-Lincoln Extension: Historical Materials

Grain perfection is the goal for people who sew. Smart styling and a professional look in clothing construction require correct use of the grain of the fabric. No formula or method can conceal a poorly cut garment.

The Architecture Of Braid: A System For Bridging Al/Db Systems, Amit P. Sheth, Anthony B. O'Hare

Kno.e.sis Publications

We describe the design of BrAID (a Bridge between Artificial Intelligence and Database Management Systems), an experimental system for the efficient integration of logic based Artificial Intelligence (Al) and database (DB) technologies. Features provided by BrAID include (a) access to conventional DBMSs, (b) support for multiple inferencing strategies, (c) a powerful caching subsystem that manages views and employs subsumption to facilitate the reuse of previously cached data, (d) lazy or eager evaluation of queries submitted by the AI system, and (e) the generation of advice by the AI system to aid in cache management and query execution planning. To discuss …

Lactose Uptake Driven By Galactose Efflux In Streptococcus Thermophilus: Evidence For A Galactose-Lactose Antiporter, Robert W. Hutkins, Carina Ponne

Department of Food Science and Technology: Faculty Publications

Galactose-nonfermenting (Gal^-) Streptococcus thermophilus TS2 releases galactose into the extracellular medium when grown in medium containing excess lactose. Starved and de-energized Gal^- cells, however, could be loaded with galactose to levels approximately equal to the extracellular concentration (0 to 50 mM). When loaded cells were separated from the medium and re-suspended in fresh broth containing 5 mM lactose, galactose efflux occurred. De-energized, galactose-loaded cells, re-suspended in buffer or medium, accumulated ['4C]lactose at a greater rate and to significantly higher intracellular concentrations than unloaded cells. Uptake of lactose by loaded cells was inhibited more than that by unloaded …

Selection Of Genetic Variants Of Simian Immunodeficiency Virus In Persistently Infected Rhesus Monkeys, Dawn P. Wooley, Ronald C. Desrosiers

Neuroscience, Cell Biology & Physiology Faculty Publications

Genetic and antigenic variation may be one means by which lentiviruses that cause AIDS avoid elimination by host immune responses. Genetic variation in the envelope gene (env) was studied by comparing the nucleotide sequences of 27 clones obtained from two rhesus monkeys infected with molecularly cloned simian immunodeficiency virus. All 27 clones differed from each other and differed from the input clone in the gp120 (SU) portion of the envelope gene. Nucleotide substitutions were shown to accumulate with time at an average rate of 8.5 per 1,000 per year in SU. Surprisingly, the majority of nucleotide substitutions (81%) resulted in …

Vitellogenesis In Hyalomma Dromedarii (Acari: Ixodidae): A Model For Analysis Of Endocrine Regulation In Ixodid Ticks, Martin E. Schriefer

Theses and Dissertations in Biomedical Sciences

The egg yolk proteins, vitellins, and their hemolymph precursors, vitellogenins, were characterized in the ixodid tick Hyalomma dromedarii. Three vitellins were identified. The high molecular weight vitellins, VN A and VN B, were composed of seven homologous molecular weight subunit polypeptides, VN 1-7. VN A appears to be a dimeric form of VN B. VN C was composed of single polypeptide. Low levels of vitellogenin, were identified in western immunoblots utilizing antibody raised against purified vitellin. Adult protein and polypeptide profiles, including vitellin and vitellogenin, were characterized as a function of sex, tissue and reproductive development. Quantitative assessment of the …