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Diffusion Behavior Of Lipid Vesicles In Entangled Polymer Solutions, X. Cao, R. Bansil, D. Gantz, E.W. Moore, N. Niu, Nezam H. Afdhal

Internal Medicine Publications

ABSTRACT

Dynamic light scattering was used to follow the tracer diffusion of phospholipid/cholesterol vesicles in aqueous polyacrylamide solutions and compared with the diffusive behavior of polystyrene (PS) latex spheres of comparable diameters. Over the range of the matrix concentration examined (Cp = 0.1-10 mg/ml), the diffusivities of the PS spheres and the large multilamellar vesicles exhibited the Stokes-Einstein (SE) relation, while the diffusivity of the unilamellar vesicles did not follow the increase of the solution's viscosity caused by the presence of the matrix molecules. The difference between the diffusion behaviors of unilamellar vesicles and hard PS spheres of similar size …

Curio 1997, James Madison University. College Of Arts And Letters

Curio Magazine

Curio, a magazine highlighting Harrisonburg, Virginia, and its surrounding communities, is published by students in the Media Arts & Design program at James Madison University. Curio is a nonprofit organization supported by the College of Arts and Letters and the School of Media Arts & Design. Subscriptions are not available.

Real Estate 20:20, John Ratcliffe

Articles

This paper seeks to establish a framework for studying real estate futures. In doing so, it explores the general climate of change within which property decisions will have to be made, and examines the specific real estate opportunities that might emerge as a result of that change. For the purpose of appraisal, the forces of change are grouped into six sectors - cultural, demographic, economic, environmental, governmental and technological. Property perspectives are then portrayed for each of these sectors, and some conclusions drawn regarding the likely directions of change in the fields of real estate investment, development and management. Above …

The Tribune, No. 57, July 1997

Mildred E. Persinger Papers

No abstract provided.

Aquilegia, Vol. 21 No. 2-4, April-December 1997: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Carolyn Crawford, Gay Austin, Lisa Tasker, Marjorie C. Leggitt, Kaye H. Thorne, Janet L. Wingate

Aquilegia - Colorado Native Plant Society

No abstract provided.

Natural History Of The Four-Toed Salamander, Hemidactylium Scutatum, In West Virginia, Sandra L. Kilpatrick

Theses, Dissertations and Capstones

A 2-year study was conducted to determine the reproductive and nesting habits, embryonic and larval development, and tolerance to acid conditions of Hemidactylium scutatum in West Virginia. Five study sites located in or adjacent to the Otter Creek National Wilderness Area, Monongahela National Forest, Randolph County, West Virginia, were monitored to determine nesting habits and length of incubation and larval periods in Hemidactylium Time of breeding was determined by spermatogenic wave analysis and time of egg deposition was determined by examination of ovarian follicles and field observations of gravid females migrating to nest sites. Breeding occurred in autumn and again …

Re-Evaluating The Major Stressors Of Policing, James Walter Carter Ii

Theses, Dissertations and Capstones

In this study, a sample of 37 officers employed with the Huntington Police Department, a medium-sized Appalachian police department, were sampled about the stressfulness and frequency of selected items from Sewell’s Life Events Scale. From the responses to the survey items, a scale was created to assess the combined effects of frequency and stressfulness. Respondents were also asked to indicate what percentage of their total accumulated job-related stress was generated by each of Barker and Carter’s generic stressors of policing. Several group differences were found. A ranking of stressors was developed for the frequency, stress, the combined scales and compared …

A Study Of Self-Esteem Comparing Special Education With Regular Education Students During The Middle School Years, Debra A. Davis

Theses, Dissertations and Capstones

The purpose of this study was to compare differences in levels of self-esteem between special education students and a control group of normal students. One hundred sixty-two fifth- through eighth-grade students from Doddridge County Middle School, West Union, West Virginia, were assessed by teachers using the Self-Esteem Index. The students were initially divided into two groups according to their placement in the regular or the special education programs. There was a total of 81 students in each of the groups. The configuration of each group was as follows: 24 learning-disability students, 14 behavior-disorder students, 16 gifted students, nine speech/language-disorder students, …

Ecological Life History Of Crangonyx Pseudogracilis Bousfield (Crustacea: Amphipoda) In The Green Bottom Wildlife Management Area, Cabell County, West Virginia, Andrea Leigh Henry

Theses, Dissertations and Capstones

Although the genus Crangonyx has been studied in the Appalachian area, most of this work has concentrated on subterranean species. A Crangonyx pseudogracilis population from the Green Bottom Wildlife Management Area (GBWMA), Cabell County, West Virginia was sampled weekly from March 1995 through July 1996 to investigate the ecological life history of the amphipod. A total of 1508 amphipods were collected. Amphipods were present in the study sites from November through July, at which time they migrated to deeper waters. Crangonyx pseudogracilis had a one year life cycle and bred from November to May. Adult amphipods began to die off …

An Ecological Study Of Shale Barren Rock Cress (Arabis Serotina Steele) At Little Fork Shale Barren, Pendleton County, West Virginia, Robert J. Jarrett

Theses, Dissertations and Capstones

Shale Barren Rock Cress (Arabis serotina Steele) was listed as a federally endangered species by the U.S. Fish and Wildlife Service in August 1989. As part of a cooperative agreement between the West Virginia Natural Heritage Program and the U.S. Navy, research was conducted in 1994 and 1995 at Little Fork Shale Barren (LFSB) to provide baseline information on the population dynamics of A. serotina and to study the vegetation and physical parameters associated with this shale barren community. Soil samples and plant community data were collected from 40 1-m² circular plots for herbaceous vegetation and six 0.02-ha …

Natural History Of The Red-Spotted Newt, Notophthalmus Viridescens Viridescens (Rafinesque), In West Virginia, Jennifer M. Piascik

Theses, Dissertations and Capstones

Many studies have been conducted on Notophthalmus viridescens viridescens but none have occurred in West Virginia. There are variations in the life history of newts depending on location. In this study, I studied a population of newts in Wayne County, West Virginia from February 1996 to June 1997. I examined population structure, seasonal activity, and reproductive biology.

The population structure can be divided into four classes: egg, larvae, eft, and adult. Eggs at Shoals were deposited in mid-May and larvae were present from mid-June to early September. Larvae began to transform at an approximate total length of 32.8 mm. Red …

Effects Of Estrogen In A Place Preference Conditioning Paradigm Using Non-Sexual Social Interaction To Condition Female Rats, Timothy D. Maze

Theses, Dissertations and Capstones

Female Sprauge Dawley rats were used to determine if non-sexual social interaction could be used as a positive reinforcing stimulus in a place preference conditioning (PPC) paradigm. PPC is a commonly used paradigm to test the addictive properties of abused drugs, but has also been used to determine the positive effect of sexual activity and play in juvenile rats. Individually housed female rats were paired with group housed female rats or left isolated in a chamber for 15 minutes for positive or negative conditioning, respectively. Three different groups of rats were tested: intact, bilateral ovariectomized (OVX), and bilateral ovariectomized with …

Observations On Reproduction, Isozyme Patterns, And Meristics In Mosquitofish (Pisces: Poeciliidae) From West Virginia, Matt Mcreynolds

Theses, Dissertations and Capstones

Prior to 1988, two subspecies of the mosquitofish Gambusia affinis (G. a. affinis and G. a. holbrooki) were recognized along the Gulf and Atlantic Coasts of the United States. Based on electrophoretic analysis, subsequent investigators recognized G. holbrooki and G. affinis as separate species. Populations in drainages west of Mobile Bay were considered G. affinis, and those east of this divide being G. holbrooki. The only mosquitofish population in West Virginia is found in the Meadow River wetlands (1392 ha). This wetland complex is located at the western end of Greenbrier County in the Allegheny Mountain Province. …

Diet And Growth Of Larval And Juvenile Grass Pickerel, Esox Americanus Vermiculatus, And Central Mudminnow, Umbra Limi, In The Green Bottom Wildlife Management Area, Cabell County, West Virginia, Erica Midkiff

Theses, Dissertations and Capstones

The grass pickerel, Esox americanus vermiculatus, is listed as Undetermined on the Vertebrate Species List of Concern in West Virginia. The central mudminnow, Umbra limi, is a disjunct population in Green Bottom Swamp. The lentic, vegetated areas that are required for spawning for the grass pickerel and the central mudminnow have been reduced by residential, agricultural, and industrial developments. Green Bottom Swamp, a naturally occurring wetland of 58 ha, and a nearby mitigated wetland of 29 ha, provides spawning habitat for the grass pickerel and the mudminnow. Fishes were collected in beds of Potamogetan crispus and Ceratophyllum demursum …

Effects Of Creatine Supplementation On Muscular Strength And Power Development In Well-Trained Football Players, Josef D. Mcquain

Theses, Dissertations and Capstones

The purpose of this study was to determine the effects of creatine supplementation on strength and power performance in well-trained football players. Twenty-one subjects were randomly assigned to three treatment groups: 1) creatine monohydrate, 2) creatine monohydrate+dextrose, or 3) placebo utilizing a double-blind design. Prior to assignment, subjects were matched according to lean body mass. After a five day loading dose, a maintenance dose was administered for 12 days. Test protocols included three anaerobic work bouts: l) two 30 s Wingate bike tests interspersed with five minutes recovery were used to ascertain relative and absolute power, 2) two 100 yard …

A Concurrent Validity Study Of The Kaufman Brief Intelligence Test And The Wechsler Adult Intelligence Scale - Revised, Kimberly D. Rayburn

Theses, Dissertations and Capstones

The Kaufinan Brief Intelligence Test (K-BIT) as a valid screening instrument for the more comprehensive Wechsler Adult Intelligence Scale-Revised (WAIS-R) was studied. Both assessment instruments were administered to 34 subjects referred to a private psychological practice as part of a requested battery of test. Each test produces a verbal score, nonverbal score and combined verbal and nonverbal score. Results indicate that each section of the K-BIT has a significant correlation to its WAIS-R counterpart. The correlation between the verbal scores, nonverbal scores and the combined scores of the two instruments were .87, .78, and .88, respectively. The K-BIT appears to …

An Immunomodulating Mycotoxin Interferes With The Development Of Autoimmune Diabetes In Diabetes-Prone Bb/Wor Rats, Honggang Liu

Theses, Dissertations and Capstones

Various fungal products have immunomodulating activity and some have been studied regarding prevention of transplantation rejection. Prior to this investigation, the mycotoxin, gliotoxin (GT), has never been investigated as an immunotherapeutic drug for autoimmune disease. GT is a fungal secondary metabolite and a member of the epipolythiodioxopiperazine (ETP) family which has been shown to inhibit phagocytosis, induction of cytolytic T cells and the proliferation of T cells following mitogen stimulation. GT also induces in vitro apoptosis in certain immune cell types. More importantly, GT exhibits selective activity towards cells of hemopoietic origin.

Autoimmune diseases are disorders caused by immune responses …

The Regulation Of Glucose Transport In Cultured Vascular Smooth Muscle Cells By Angiotensin Ii And Glucose, Leslie Ann Quinn

Theses, Dissertations and Capstones

Glucose transport was assessed in vascular smooth muscle (VSM) cells by measuring the uptake of a radiolabeled non-metabolizable glucose analog, [3H]-2-deoxglucose. VSM cells, isolated from rat aortae by enzymatic digestion, were maintained in culture in Dulbecco's Modified Eagle Medium supplemented with 10% newborn calf serum at 37°C with 5% CO2 and air. Angiotensin II (AU) increased glucose transport by 84%. Significant stimulation occurred by two hours of exposure with the maximum effect being observed between six and eight hours. All effects were concentration dependent with a threshold response being detected at 0.1 nM. All-stimulated transport was blocked by an AU …

Determination Of Selected Hydrocarbon Concentrations In Reformate Using Near Infrared Spectroscopy, Roy Roger Bledsoe Jr.

Theses, Dissertations and Capstones

Near infrared spectroscopy was used as a quantitative technique employing multiple linear regression and partial least squares regression for determining the concentration of hydrocarbon groups and individual hydrocarbons present in reformate, a refinery process stream. Models were generated for total aromatics, benzene, toluene, total xylenes and individual xylene isomers, ethylbenzene, total paraffins, n-hexane, n-heptane, total isoparaffins, isopentane, 2-methylhexane, total naphthenes, methylcyclopentane, and total olefins. Some models are being used with an on-line instrument to constantly monitor a reformate stream as it leaves the reforming unit, with a standard error of performance of 0.118 volume percent for the prediction …

Relationship Of Resting And Submaximal Cardiovascular Measures To Vo[2]Max In Untrained Children, Thomas A. Cappaert

Theses, Dissertations and Capstones

Participation by children in organized sport continues to increase. A 1994 survey of 10,000 households by the National Sporting Goods Association (1994) found that approximately 40,000 children between the ages of 7-17 years participate in an organized sport or recreational activity annually. In the realm of organized sports, especially endurance activities, there continues to be interest in how cardiovascular fitness is attained and how it can be maximized. Measurement of cardiovascular fitness is an important piece to that puzzle.

The most common and most descriptive measure for children and adults, is the maximal oxygen uptake or max (Astrand & Rodahl, …

Oral History Interview: Leahgreatta Chiles Hairston, Leahgreatta Chiles Hairston

0064: Marshall University Oral History Collection

This interview is one of series conducted concerning the Oral History of Appalachia. The subject of this interview is Camp Washington Carver in Clifftop, WV. At the time of the interview, Leahgreatta was business manager with Merck Human Health Division. She discusses: her experiences attending the camp; activities at the camp; people she remembers from the camp; racial integration at the camp; a story about a thunderstorm where lightning split a tree; an anecdote about sickness at the camp and singing a song about a bottle of Maalox; differences she sees in kids when she was growing up and modern …

Oral History Interview: Mary M. Elston, Mary M. Elston

0064: Marshall University Oral History Collection

This interview is one of series conducted concerning Oral Histories of African-American women who taught in West Virginia public schools. Mary M. Elston discusses her family in great detail throughout the interview, and this includes: relatives (some of whom were slaves), growing up in a racially mixed family, meeting her husband, her marriage and family life, working at the same school as her husband and information about his educational and employment history, her children and adopted children, taking her children to events, and the competitiveness at school and in her family. The subject of divorce also comes up in this …

Oral History Interview: Susie H. Guyton, Susie H. Guyton

0064: Marshall University Oral History Collection

This interview is one of series conducted concerning Oral Histories of African-American women who taught in West Virginia public schools. Susie H. Guyton began teaching in at Bramwell School in West Virginia. She gives us detailed information about her family throughout the interview, including family life during her childhood, her husband and her children, and her family history (which includes family members of different ethnicities). She grew up in Pocahontas County (WV), and tells us about community and social activities in the area. She also gives us detailed information about her education, which includes Bluefield State College, and she tells …

Oral History Interview: Mary F. Montgomery, Mary F. Montgomery

0064: Marshall University Oral History Collection

This interview is one of series conducted concerning Oral Histories of African-American women who taught in West Virginia public schools. Mary F. Montgomery began teaching in the 1950s at Bluff City Elementary School in Virginia. She gives us very detailed information about her family throughout the interview, including the illness and death of her mother. She also provides detailed information about her education, which included Lawson Street Elementary and Bluefield State College, and she tells us about being a member of Delta Sigma Theta (a group of college educated women that stand for public service). She gives us very detailed …

Oral History Interview: Mary C. Snow, Mary C. Snow

0064: Marshall University Oral History Collection

This interview is one of series conducted concerning Oral Histories of African-American women who taught in West Virginia public schools. Mrs. Mary C. Snow was a school teacher and principal who retired in 1989. She gives us detailed information about her family throughout the interview, including Christmas and holidays in her family, raising her son Winn (nicknamed "Rags"), and her relationships with family members growing up. Her childhood is also discussed in detail, and she recalls: styling hair when she was a kid; detailed information about race relations during her childhood; dating; child punishments; childhood games and activities; childhood chores; …

Laser Profilometry Of Polymeric Materials, Eduard A. Kulik, Patrick Calahan

Cells and Materials

Unlike the mechanical stylus profilometer, the laser profilometer does not damage the surface of soft materials. However, the accuracy of autofocusing of the laser profilometer is not always sensitive enough to discriminate the material/air interface from subsurface structures of semitransparent polymers. In the present study over ten polymeric surfaces were gold coated in order to investigate the effect of gold coating on the readings of a laser profilometer. Surface profiles of some polymeric materials became much smoother even if a very thing gold coating was applied to increase the reflection from the surface. It was concluded that a thin gold …

Image Analysis Of Primary Bone-Derived Cells On Different Polystyrene Surfaces, R. M. Shelton, G. Landini

Cells and Materials

The aim of the present study was to examine whether two different cell populations could be discerned using image analysis of a variety of morphological parameters on bacteriological and tissue culture polystyrene surfaces. Rat periosteal and osteoblast cultures were established on both polystyrene petri dishes and examined using phase contrast microscopy after one and two weeks before capturing digital images which were stored on a personal computer. The digital images were processed to identify the cell margins or perimeter, from which seven different morphological parameters were calculated using a program developed (by GL) for both the cell populations on the …

Corrosion Of Metal Hip Arthroplasties And Its Possible Role In Loosening, H. K. Koerten, J. J. A. M. Van Raay, J. J. M. Onderwater, F. P. Bernoski, P. M. Rozing

Cells and Materials

Tissue removed with human hip arthroplasties during revision surgery of 45 patients was evaluated by transmission electron microscopy and X -ray microanalysis (XRMA). The results show that microscopic and submicroscopic particles are abundantly present in the tissue at the tissue/implant interface. XRMA of individual particles shows that the chemical composition of a portion of the particles was in agreement with that of the retrieved implants. Regularly, particulates with a dissimilar chemical composition were found. Sometimes, these particles could be recognized as filler particles of the cements used. Other particles could partly or completely be composed of the chemical elements that …

Macrophage Response To Polymethylmethacrylate Particles, Stephen M. Horowtiz

Cells and Materials

This paper reviews studies performed by this laboratory involving the macrophage response to implant particles. Through the development of a tissue culture model, we have studied the events which occur following macrophage phagocytosis of bone cement particles, the released mediators and cell interactions which may ultimately lead to bone resorption, and the inhibition of this process with the use of pharmaceutical agents. This is divided into the following sections: Histologic response of macrophages to cement particles I toxicity I and mediator release, the effects of particle size and composition on mediator release by macrophages, macrophage I osteoblast interactions, macrophage I …

Fracture Of An Acetabular Component Inserted Without Cement: A Case Report, R T. Trousdale, D J. Berry, Joshua J. Jacobs, Jeremy L. Gilbert

Biomedical and Chemical Engineering - All Scholarship

No abstract provided.