Life Sciences Commons^™

Social Play Behavior, Marc Bekoff

Ethology Collection

Recent studies clearly indicate that animal play is an important behavioral phenotype, and that detailed analyses of the phenomenon are useful for furthering our understanding of the evolution of social behavior and the interaction of phylogeny, ecology, and behavioral development. This article is concerned mainly with evolutionary, ecological, and developmental aspects of social play behavior in mammals.

New Jersey Outlaws Steel-Jaw, Leghold Trap!

Close Up Reports

New Jersey's wildlife will soon roam the woods free from the threat of steel-jaw, leghold traps.

The Effect Of Drying Conditions On Asa Sized Paper, Melanie K. Blanchard

Paper Engineering Senior Theses

The object of this study is to determine the roles of the drying variable and solids content of the sheet in the ASA sizing mechanism. Handsheets were produced according to the Western Michigan University Standard Hardsheet Procedure for Alkenyl Succinic Anhydride (ASA) sized sheets. A control value of 346 seconds was set drying sheets in a forced draft oven at 221^◦F (105^◦C) for 60 minutes. Additional handsheets were then dried on a hot plate at one of the following temperatures: 100-120^◦F, 200-210^◦F, 317^◦F or 475^◦F, and they experienced …

The Effects Of Wet-Pressing And Degree Of Refining Upon The Strength Properties Of Paper, Mary Beth Ciofu

Paper Engineering Senior Theses

The dynamic press simulator has great potential to become a reliable tool in the study of wet pressing. This instrumental allows the researcher to duplicate wet press nip conditions in the laboratory.

I was unable to complete my planned study concerning the relationship between refining and wet pressing as they effect the development of fiber bonding because of equipment failure. The press loadings and drop heights used in my experiment caused the development of stresses which exceeded the press simulators design limitations.

If the dynamic press simulator is to be used to study the wide range of pressing conditions found …

The Effect Of Press Drying On Groundwood, Corrugated Material, And Various Mixes Of Groundwood And Corrugated Material, Thomas A. Derusha

Paper Engineering Senior Theses

Research was conducted to determine the effect of press drying on the physical properties of handsheets made from groundwood, corrugated material, and various mixes of groundwood and corrugated material. During this study, press dried handsheets were compared to conventionally dried handsheets.

There was a difference in handsheet properties as the blend ratio of corrugated-to-groundwood stock changed. Strength related properties were positively affected by the amount of corrugated material present for both press dried and conventionally dried handsheets. The press dried sheets had higher burst factor and tear factor as corrugated content increased. Burst factor, elongation, and tear factor increased with …

Alternative Crops For Ethanol Fuel Production: Agronomic, Processing, And Economic Considerations, Thomas Dobbs, Duane Auch, Randy Hoffman, William R. Gibbons

Economics Research Reports

This report is a result of the fuel alcohol research team's broadened focus during 1983. A comprehensive literature review was carried out to explore alternative starch and sugar crop alternatives for ethanol fuel production. Although the literature search was quite inclusive with respect to geographic regions, special emphasis was given to the agronomic and economic potential of various fuel alcohol crops in the Northern Plains region of the U.S., of which South Dakota is a part, and in LDCs of Asia, Africa, and Latin America. Our intent was to thereby determine possible energy crops deserving of more fuel alcohol research …

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director’s Comments: Former Extension director praises team that ‘discovers and delivers’ counters assumptions with facts [p] 2

Meadowlark: Both bird and bush are harbingers of spring. Until now, no forsythia has been winter hardy in our state [p] 3

A shot for scabies: SDSU-researched drug is now approved by FDA; it’s not as hard on the cattle as dipping [p] 6

Feeding flowers: if sunflowers crop isn’t good enough for the crushes, two options are to feed to sows and to growing-finishing swine [p] 7

Is the exodus over?: They are leaving the glitter and bright lights. But are they …

The Gamut: A Journal Of Ideas And Information, No. 12, Spring/Summer 1984, Cleveland State University

The Gamut Archives

CONTENTS OF ISSUE NO. 12, SPRING/SUMMER,1984

Kenneth A. Torgerson: Jury or Judge, 2

The problems of trial by one's peers.

Robert Creeley: Conversation, 20

Interview reveals a poet's concerns about teaching, money, readings, publishing.

Carsten Ahrens: Ottawa County's Very Special Daisy, 33

Rare botanical species of Sandusky area.

George C. Chang: Progress and Promise of Electric Vehicles, 35

Will the future of transportation be battery-powered?

Marvin H. Jones: Peculiar Portraits, 48

Ingrid Komar: Making Utopia Work, 50

The joys and travails of an "intentional" community.

David B. Guralnik: Word Watch: Productive Suffixes II, …

Messengers To The Brain: [Dr. Bruce Mcewen], 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.

The Effects Of Air Entrainment In Centrifugal Cleaners On The Removal Of “Neutral” Density Contaminants, Karrie L. Kane

Paper Engineering Senior Theses

In this study, two centrifugal cleaners -- the C-E Bauer Water-Master and the Beloit Uniflow -- were evaluated to determine the effects of entrained air in the stock on cleaning efficiency. A "neutral" density hot melt contaminant (specific gravity = 0.99) was added to dry lap pulp to simulate a recycled furnish. Various levels of a nonionic surfactant were used to induce foam in the stock; this foam was measured as percent air by volume. The cleaners were operated at a series of air levels and pressure drops, in order to generate characteristic curves. The results of the project indicate …

The Effect Of Air Knife Geometry On Coated Board Properties, Michael L. Iveson

Paper Engineering Senior Theses

The purpose of this thesis was to determine the effect of air knife angle and the distance between the air knife blades and backing-roll on coated board properties. Results of the experiment indicated that increasing the angle resulted in more uniform and smaller coated pore size. Increasing the distance resulted in more uniform pores with no effect on size. The optimum angle of operation was found to be between 17 and 20 degrees (approximate impingement angle) and optimum distance was determined to be between 80 and 90 mils. Further work that can be completed as a result of this thesis …

Characterization Of A High Solids Tio2 – Dispersant System At High Rates Of Shear, Stephen R. Holmes

Paper Engineering Senior Theses

The objective of this research was to study rheograms of high solids titanium dioxide dispersions at different dispersant levels. Viscometric measurements were collected with a Hercules High-Shear Viscometer. Viscosity was calculated using the initial slope of the increasing shear rate flow curve from the rheogram. This technique was incorporated to calculate viscosity in the laminar reagion up to the critical shear rate, where flow instability was expected to develop according to Taylor vortical flow calculations. The dispersant levels (dispex) were varied based on grams of titanium dioxide at varying percent solids levels. The results were evaluated according to a two-phase …

The Effects Of Drying Rate On Properties Of Pigment Coated Papers, Francis G. Osorno

Paper Engineering Senior Theses

The objective of this study was to investigate the effects of drying rate on the characteristics of coated paper. A laboratory dryer was assembled consisting of an IR dryer and a steel backing can to dry the coated paper. Two differently sized papers and three drying rates were used. The final sheet properties increased as the rate of drying was increased from 0.27 to 0.49 lbs/hr.-ft.². Further increase in the drying rate had little effect on sheet properties. The surface of the coated paper was found to be more open after drying at the middle drying rate, thus …

An Investigation Into The Parameters Affecting Vehicle Migration During The Redistribution Of Aqueous Coatings, Mark K. Phiscator

Paper Engineering Senior Theses

The purpose of this study was to determine what effect shear has upon the vehicle migration in aqueous coatings. The roll inclined-plane apparatus was utilized to generate various ranges of shear rate. An immobilization factor was then calculated for these different rates of shear indicating the degree of vehicle penetration. The particle size of the binder and the particle size of the pigment were varied to determine their effect on the penetration into the base substrate.

It was concluded that high shear rates pack the particles, either binder or pigment, into the pores of the base substrate. This phenomenon prevents …

The Effects Of Different Carboxymethylcellulose Molecular Weight Grades With Polyamide Epichlorohydrin Resin On Wet And Dry Paper Strength, Edward J. Schodowski

Paper Engineering Senior Theses

Four different molecular weight grades of carboxymethylcellulose were used in combination with polyamide epicholrohydrin resin to study wet strength development. Noble and Wood handsheets were made with deionized water, using a white water recirculation system. Resin was added to thick stock followed by CMC, in dilute conditions. Wet and dry tensile strength were tested. Increasing CMC molecular weight increased dry strength. Increased CMC molecular weight had no effect on wet strength. CMC addition with resin increases wet strength.

CMC increases wet strength by a carboxyl group reaction with resin which results in increased resin retention. It was concluded that increased …

Design, Construction And Operation Of A Four Stage Sidehill Screen Deinking System, Scott Sleeman

Paper Engineering Senior Theses

The objective of this thesis project was to design, construct and place into operation a four stage sidehill screen deinking system.

The Effect Of Improved Brownstock Washing On Bleach Plant Effluent Quality, Paul S. Wiegand

Paper Engineering Senior Theses

The objective of this thesis was to quantitatively determine the effects of reduced brownstock washer carryover on bleach plant effluent quality with respect to BOD and Color. More specifically; if efforts are made to reduce brownstock washer carryover by "X" pounds of BOD and Color, how many pounds of BOD and Color will be removed from the bleach plant sewer?

Very little work has been done in this area. The laboratory procedure involved extensive washing of hardwood pulp and subsequent re-introduction of weak black liquor to simulate carryover. Black liquor was added as pounds Salt Cake loss per ton pulp. …

Inland Seawalls In Southwestern- Michigan: A Limnological Approach, Jeroen Wagendorp

Masters Theses

This research retrospectively evaluates the development of inland lake seawalls in southwestern Michigan. The objective was to look at physically induced phenomena and human induced phenomena, to determine which was most responsible for the need, and large numbers of inland lake seawalls in this region. In addition, the role of the Department of Natural Resources in inland lake seawall development was evaluated.

The findings, obtained through questionnaires, were compared to data from seawalls installed along the eastern shore of Lake Michigan, and showed that man's activity in the littoral zone was the fundamental rationale behind the installation on inland lake …

Isolation Of A Collagenase Cdna Clone And Measurement Of Changing Collagenase Mrna Levels During Induction In Rabbit Synovial Fibroblasts., Robert H. Gross, Lynn A. Sheldon, Colin F. Fletcher, Constance E. Brinckerhoff

Dartmouth Scholarship

To facilitate our studies on the mechanisms controlling collagenase production at a molecular level in rabbit synovial fibroblasts, we have constructed a cDNA library using mRNAs isolated from cells induced with crystals of monosodium urate monohydrate. We have screened this library with cDNA probes made from induced and control mRNA populations. From among 30 clones that hybridized preferentially to the induced-cell probe, 4 contained collagenase sequences. The largest, a clone of 650 base pairs, was identified by its ability to hybrid select a mRNA that could be translated in a cell-free system into a product that was precipitable with monospecific …

Fundy Tidal Power Development : Preliminary Evaluation Of Its Environmental Consequences To The Resources Of The State Of Maine, Bigelow Laboratory For Ocean Sciences

Maine Collection

Fundy Tidal Power Development : Preliminary Evaluation of Its Environmental Consequences to the Resources of the State of Maine

A Report to the Maine State Planning Office by the Bigelow Laboratory for Ocean Sciences, April, 1984.

"Technical Report No. 35 - Bigelow Laboratory for Ocean Sciences, West Boothbay Harbor, Maine - A Division of Northeastern Research Foundation, Inc."

Contents: Executive Summary / Introduction / Methods / Physical and Biological Consequences / Socio-Economic Consequences / Research Needs / Bibliography / Appendix I. Written Comments on Greenberg Model

The Taxonomic Status Of Echinococcus Cruzi Brumpt And Joyeux, 1924 (Cestoda: Taeniidae) From An Agouti (Rodentia: Dasyproctidae) In Brazil, Robert L. Rausch, A. D'Alessandro, M. Ohbayashi

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

Paratype material of Echinococcus cruzi Brumpt and Joyeux, 1924, described from an agouti, Dasyprocta leporina (L.), in Brazil, was compared with Echinococcus oligarthrus (Diesing, 1863), of which the larval stage occurs also in agoutis and other rodents in South America and Central America. Comparisons of the larval cestodes (metacestodes) showed that the rostellar hooks from protoscolices of the two taxa corresponded in form, and their slightly greater lengths in E. cruzi were considered to be of no taxonomic significance. They agreed as well in other morphological characteristics. Echinococcus cruzi was compared also with the other neotropical species, E. vogeli Rausch …

Streamflow Summaries From Twelve Tributaries Of Farmington Creek, Davis County Experimental Watershed, Northern Utah, U.S. Forest Service, United States Department Of Agriculture, Jan M. Pankey, Norbert V. Debyle

All U.S. Government Documents (Utah Regional Depository)

The Farmington Creek watershed consists of 6,400 acres of forested and brush-covered lands on the west face of the Wasatch Mountains between Salt Lake City and Ogden. Streamflow data have been gathered from this stream as well as from most of its perennial tributaries for many years. Mean daily, monthly, and annual flows are tabulated for all years of record from the 12 gaged tributaries of farmington creek.

Purification And Properties Of A Mannitol-Binding Protein From Pseudomonas Aeruginosa, Gregory V. Plano

Masters Theses

Mannitol-binding protein from Pseudomonas aeruginosa strain PAO has been purified 36-fold from magnesium chloride cold-shock supernatants. Sephadex G-100 gel filtration and carboxymethyl Sephadex ion exchange chromotography were utilized in the purification scheme. The position of the mannitol-binding protein band was identified on sodium dodeyl sulfate-polyacrylamide gels. The mannitol-binding protein has an apparent molecular weight of 45,000 as judged by sodium dodecyl sulfate-polyacrylamide gel electrophoresis.

Louisiana Agriculture Magazine, Spring 1984, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Agricultural Experiment Station News April 1984

Agricultural Research Division: News and Annual Reports

CONTENTS:
1985 IANR AG EXPO
IMPORTANT DEADLINES
UPCOMING EVENTS
ADVISORY COUNCIL
DNA SEQUENCING WORKSHOP
REGENTS RESOLUTION
RESEARCH PROJECT FUNDING FROM CHECK-OFF BOARDS
MOROCCAN DRYLAND AGRICULTURE RESEARCH
BUDGET UPDATE
SURVEY OF WORKING COLLECTIONS OF MICROBIAL AND SUBCELLULAR GERM PLASM
FOOD PROTEIN RESEARCH GROUP COORDINATION
PATENT RIGHTS FROM UNIVERSITY RESEARCH
FACULTY DEVELOPMENT LEAVES
SUGARBEET TRANSPLANT PROJECT
NEW FACULTY
NEW ADMINISTRATION
RESEARCH GRANTS AND CONTRACTS RECEIVED MARCH 1984
NATIONAL ACADEMY OF ENGINEERING
PROJECT ACCOMPLISHMENTS
NEW OR REVISED PROJECTS
IANR FIVE YEAR PLAN
ANIMAL SCIENCE COMPLETION PROJECT

The Fungal Ecology Of The Activated Sludge Process, Douglas William Jaques

Masters Theses

Examination of wastewater secondary influent and activated sludge reveal that bacteria and fungi may exist in a negative correlation. Activated sludge may support a resident population of microfungi. All fungi isolated from secondary influent and activated sludge belong to the form-class Deuteromycetes. The density of geofungi in activated sludge may exceed that of bacterial chemolithotrophs and rival that of bacterial heterotrophs.

A Comparison Of Two Methods Of Presenting Nutrition Education To Senior Citizens Participating In A Congregate Meal Program, Janice M. Williams

Masters Theses

Senior citizens participating in a congregate meal program received nutrition education lessons in two different ways. One group received nutrition lectures, a second group recieved nutrition lectures accompanied by printed material. A third group served as a control. Each group contained an urban and rural site. The nutrition lectures and printed material centered on the Basic Four food groups. The lessons were presented to the subjects once a week in four successive weeks. The length of the nutrition lecture for each food group was twenty minutes. The senior citizen took pre and posttests to measure an increase or decrease in …

Life History Patterns Of Dytiscidae In A Temporary Pool, Annabel C. Blanco

Biological Sciences Theses & Dissertations

The Dytiscidae are one of the most distributed families of aquatic Coleoptera. In addition, they comprise one of the largest families in the order. With the exception of some European species, research in the ecology/life history of the Dytiscidae has been limited.

The patterns of appearance and disappearance of Dytiscidae were studied for one growing season, February to June, 1983, in a temporary pool in the Great Dismal Swamp. Fourteen species of larvae and twenty-four species of adults were collected. Definite temporal patterns were evident in larvae of Laccophilus spp., Laccornis difformis, Liodessus affinis, Uvarus granarius, Agabetes acuductus, and Hoperius …

Timing Of The Blue Crab Fisheries Of Virginia And Its Application To Harvest Management, J. Dale Shively

OES Theses and Dissertations

The timing of a fishery is a quantitative expression of the composite behaviors of harvesters, markets, animals and climatic events. A quantitative description of the timing of the blue crab (Callinectes sapidus) fisheries of Virginia was established using the time density model of Mundy (1979). Blue crab catch statistics supplied by the National Marine Fisheries Service and the Virginia Marine Resource Commission were divided into two fisheries based on gear type; the summer and winter fisheries. Average performance curves were then constructed using average cumulative proportions of catch. Annual yield estimates were also made and timing in five …

An Examination Of The Variability Of Migratory Timing Statistics Estimated From Catch And Effort Observations, Arthur J. Butt

OES Theses and Dissertations

The estimate of the mean arrival time based on catch or CPUE of fishes migrating into a fixed harvest area is a function of the number of days fished. Simulation studies using chinook salmon catch and effort data from the Yukon River delta, Alaska indicate that fishing effort concentrated at the tails of the migratory distribution which would tend to erroneously weigh the estimated mean arrival time in the direction of the sample, away from the true mean, is only a significant problem when the number of days open to fishing is small, covering less than 12% of the total …