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Articles 3781 - 3810 of 4178

Full-Text Articles in Life Sciences

Ultrastructure & Microtubule Patterns Of A Detached Cellular Oganelle, Peggy Mervine Aug 1980

Ultrastructure & Microtubule Patterns Of A Detached Cellular Oganelle, Peggy Mervine

Masters Theses & Specialist Projects

In the axopod, the cell appendage of heliozoans, a bundle of microtubules runs the length of the organelle with a lateral pattern depending on the species. In the species under study, Echinosphaerium nucleofilum, these microtubules are arranged in a double spiral pattern. Axopodia can be detached and the purpose of this study was to refine the detachment procedure, work out electron microscopy techniques and scrutinize the detached axopodia for differences from the organelle of a whole organism. Detached axopodia were fixed, embedded, sectioned, observed under the electron microscope and found to be similar in ultrastructure to undetached ones. Thus, …


Interpopulational & Species Comparisons Of The Genus Liquidambar, Diana Duckworth Jul 1980

Interpopulational & Species Comparisons Of The Genus Liquidambar, Diana Duckworth

Masters Theses & Specialist Projects

Growth patterns under controlled conditions and chemotaxonomic techniques involving protein and flavonoid analysis were used to investigate both interpopulational and species comparisons in the genus Liquidambar. Striking differences in budburstinq patterns after a dormant period were seen when comparing L. styraciflua and L. formosana. The latter species showed earlier initiation of growth. Dormancy patterns of L. styraciflua grown under growth chamber conditions showed a latitudinal cline. Cessation of growth occurred later in a Georgia population under both long and short day experimental periods than populations from Missouri and Kentucky. When grown under controlled conditions, flavonoid patterns from L. …


A Comparison Of Vitamin A1 & A2 Levels & The Role Of Beta-Carotene & Lutein In The Synthesis Of Vitamin A In Freshwater Fishes, Benjamin Del Tito Jr. May 1980

A Comparison Of Vitamin A1 & A2 Levels & The Role Of Beta-Carotene & Lutein In The Synthesis Of Vitamin A In Freshwater Fishes, Benjamin Del Tito Jr.

Masters Theses & Specialist Projects

The objectives of this study were to determine naturally occurring concentrations of vitamin A1 and A2 in selected native fishes and, under laboratory conditions, to determine the possible role of beta-carotene and lutein in the synthesis of vitamin A by goldfish. The native fishes were selected to exhibit different feeding habits and were taken from different habitats (stream vs. lake) during different seasons of the year. In the laboratory, two possible precursors, beta-carotene and lutein, were incorporated into the diet to determine the role of these substances in the synthesis of vitamin A.

Species of fish differed in …


A Floristic Survey Of The Vascular Plants Of Barren County, Kentucky, George Pryor Johnson May 1980

A Floristic Survey Of The Vascular Plants Of Barren County, Kentucky, George Pryor Johnson

Masters Theses & Specialist Projects

A floristic survey was made of the vascular plants of Barren County, Kentucky. A total of 1190 specimens were collected which represent 603 species, 351 genera and 103 families.

The Asteraceae had the largest number of species of any family, a total of 85. The next largest families were Poaceae and Fabaceae, with 54 and 35 species, respectively. The genus Carex was represented by 24 species, the largest number for any genus.

A description and discussion of the vascular flora of specific sites as well as the county in general is given. An annotated list of species is also presented.


An Ichtyhyofaunal Survey Of Three Kentucky Tailwaters, William Robinson May 1980

An Ichtyhyofaunal Survey Of Three Kentucky Tailwaters, William Robinson

Masters Theses & Specialist Projects

Tailwater fishes of the Green, Barren, and Rough River Lakes, Kentucky, were sampled in the fall of 1978, spring 1979, and summer 1979. Fish per acre estimates were greatest in the fall and least in the spring, while standing crop estimates were similar in the fall and spring but markedly lower in the summer. Cyprinidae was the predominant family represented in the entire study. Rough species comprised the greatest component of biomass in each tailwater, while forage and/or game fish represented the majority of individuals.

Barren River tailwater fishes exhibited the greatest average standing crop estimates, while the greatest variety …


Kentucky Warbler (Vol. 56, No. 2), Kentucky Library Research Collections May 1980

Kentucky Warbler (Vol. 56, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Evaluation Of Seedbed Preparation & Alachlor Combinations For Weed Control In Soybeans, Ralph Young May 1980

Evaluation Of Seedbed Preparation & Alachlor Combinations For Weed Control In Soybeans, Ralph Young

Masters Theses & Specialist Projects

Alachlor [2'-chloro-2',6'-diethyl-N-(methoxymethyl) acetanilide] in combination with linuron [3-(3,4-dichlorphenyl)-1 methoxy-1-methylurea (n'-(3,4-dichlorophenyl)-N-methoxy-Nmehtylures)] and metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one 4-amino-6-(1,1-dimethy-ethyl)-3-(methylthio)-1,2,3-triazin-5(4 H)-one] was evaluated for its control of broadleaf and annual grasses in Mitchell soybeans (Glycine max L.) under four different tillage conditions.

The experiment was conducted in the summers of 1978 and 1979. The tillage treatments evaluated were conventional tillage, double disking, single disking, and no-tillage. Alachlor at 2.2, 2.8, and 3.4 kg/ha was used alone and in combination with metribuzin at 0.4, 0.6, and 0.8 kg/ha and linuron at 0.6, 0.8, and 1.2 kg/ha. All treatments were compared with a check which received no …


Evaluation Of Bas 9052 & Bas 9021 For Control Of Johnsongrass (Sorghum Halpense) In Soybeans (Glycine Max), Sheryl Rogers Apr 1980

Evaluation Of Bas 9052 & Bas 9021 For Control Of Johnsongrass (Sorghum Halpense) In Soybeans (Glycine Max), Sheryl Rogers

Masters Theses & Specialist Projects

The lack of adequate weed control is one of the major problems encountered in soybean production. Johnsongrass presents one of the most serious weed control problems in the Southeastern United States. numerous herbicides are used in an effort to control johnsongrass, and research is still being conducted to find new herbicides for this purpose. Two of these herbicides are BAS 9021 [6,6-dimethyl-2,4-dioxo- 3[1-[2-(propenyloxy)amino]butylidene]-cyclohexane] and BAS 9052 [2-(n-ethoxybutyrimidoyl)-5-(2-ethylthiopropy1)-3- hydroxy-2-cyclohexen-1-one].

In 1978, johnsongrass control with BAS 9021 at 1.1 and 1.7 kg/ha in sim-le early postemergence or late postemergence applications, or in each of two split applications, was evaluated using the herbicide …


Kentucky Warbler (Vol. 56, No. 1), Kentucky Library Research Collections Feb 1980

Kentucky Warbler (Vol. 56, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Ua64/10/5 Scrapbook, 1972-1980, Wku Recreation Majors' Club Jan 1980

Ua64/10/5 Scrapbook, 1972-1980, Wku Recreation Majors' Club

Student Organizations

Scrapbook created by the members of the WKU Recreation Majors' Club for the years 1972 through 1980. Book includes photographs of outings and events, meeting minutes, correspondence, membership lists, invitations and certificates of achievement.


Effects Of Fecally Contaminated Feed By Starlings On Growing Swine & Mice, Pat Schuster Dec 1979

Effects Of Fecally Contaminated Feed By Starlings On Growing Swine & Mice, Pat Schuster

Masters Theses & Specialist Projects

The effects of feed contamination by droppings of starlings (Sturnis vulgaris) on certain growth parameters in swine (Sus scrofa) were measured from January 25 to March 1, 1979 at the Western Kentucky University farm. Weight gain, feed-conversion efficiency and feed rejection by swine fed varying levels of contaminated feed were analyzed and found to be non-significant at the fecal concentrations used.

Laboratory mice (Mus musculus) were fed varying concentrations of starling feces in standard mouse chow; weight gain, feed-conversion efficiency and feed rejection were measured. At 0%, 10%, 25% and 50% concentrations, significant differences …


Kentucky Warbler (Vol. 55, No. 4), Kentucky Library Research Collections Nov 1979

Kentucky Warbler (Vol. 55, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Analysis Of Tartaric Acid In Fermentation Broth, Lih-Jen Leu Aug 1979

Analysis Of Tartaric Acid In Fermentation Broth, Lih-Jen Leu

Masters Theses & Specialist Projects

Tartaric acid accumulation in fermentation broth of Gluconobacter suboxydans was investigated qualitatively with paper chromatography and thin-layer chromatography. Comparisons were made using six different solvent systems and four different chemical indicators commonly used in chromatography.

Attempts were made to establish a routine method for quantitative analysis of tartaric acid. Spectrophotometry was used to detect possible metabolites resulting from glucose oxidation by G. suboxydans in different analytical separations. A combined method of ion-exchange column chromatography and paper chromatography followed by ammonium meta-vanadate spectrophotometric analysis differentiated 5-oxogluconic acid and tartaric acid and thus gave better quantitative results in the determination of tartaric …


Kentucky Warbler (Vol. 55, No. 3), Kentucky Library Research Collections Aug 1979

Kentucky Warbler (Vol. 55, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Effects Of Two Speeds Of Isokinetic Training On Strength, Power & Muscular Endurance, Kunle Adeyanju Jul 1979

Effects Of Two Speeds Of Isokinetic Training On Strength, Power & Muscular Endurance, Kunle Adeyanju

Masters Theses & Specialist Projects

The purpose of this investigation was to determine the effects of two speeds of isokinetic training on muscular strength, power and endurance on college females.

The study involved thirty college females. Twenty of the subjects who served in the experimental groups were randomly assigned to one of two groups: fast speed or slow speed group. This was done after matching based on the pretest strength measure. Ten subjects who served as the control group were from a bowling class This investigation was conducted for seven weeks with a training frequency of three days per week. The experimental treatment was isokinetic …


Isolation And Identification Of Yeasts From The Barren River, Richard Vanenk Jun 1979

Isolation And Identification Of Yeasts From The Barren River, Richard Vanenk

Masters Theses & Specialist Projects

The Barren River was sampled twice monthly for one year to obtain data on aquatic yeasts. Sites upstream and downstream of the Bowling Green sewage plant, as well as the sewage effluent, were sampled to ascertain if the effluent had any effect on the yeast population of the river. Sporadic yeast counts were obtained which averaged 40 CFU/ml for the effluent, while the river averaged 15 CFU/ml. A total of 318 yeasts were isolated and identified during the study, including 16 different genera with Cryptococcus being the most common. Cryptococcus laurentii occurred most frequently of the 67 different species identified. …


Ecotypic Differentiation Of Andropogon Virginicus L. In Relation To Strip Mine Spoil Banks, Valina Kay Hurt May 1979

Ecotypic Differentiation Of Andropogon Virginicus L. In Relation To Strip Mine Spoil Banks, Valina Kay Hurt

Masters Theses & Specialist Projects

Reciprocal plantings of populations of broomsedge, taken from an abandoned strip mine and from an abandoned farm plot in south central Kentucky, on strip mine spoil and abandoned field soil resulted in patterns of populations differentiation. Clonal plantings of populations from strip mine habitats and old field development appeared equal in height and biomass when grown on old field soils in both field trials and growth chamber studies. Populations when planted in strip mine soils in field trials and controlled growth experiments. Later flowering in strip mine populations may be a key to survival strategy in the harsh microclimates of …


Isolation & Enumeration Of Clostridium Perfringens From The Barren River Above & Below The Effluent Of The Bowling Green, Kentucky, Sewage Treatment Plant, Michael Hansen May 1979

Isolation & Enumeration Of Clostridium Perfringens From The Barren River Above & Below The Effluent Of The Bowling Green, Kentucky, Sewage Treatment Plant, Michael Hansen

Masters Theses & Specialist Projects

Samples from five sites on the Barren River were assayed during a one year period from March 1978 to February 1979 for the presence of Clostridium perfringens. These five sites were chosen in relation to their location to the effluent discharge pipe from the Bowling Green, Kentucky, sewage treatment plant. One collection site was located upstream from the discharge point; one station was directly from the mouth of the pipe; and three were located at intermittent points downstream from the discharge point.

When counts on the primary isolation medium, egg yolk-free tryptose-sulfite-cycloserine agar (EYF-TSC agar), were compared for each …


The Effects Of Ph On 5-Oxogluconate Production By Gluconobacter Suboxydans, Neng-Chyang Leu May 1979

The Effects Of Ph On 5-Oxogluconate Production By Gluconobacter Suboxydans, Neng-Chyang Leu

Masters Theses & Specialist Projects

The metabolism of glucose to 5-oxogluconate by Gluconobacter oxydans subsp. suboxydans (Gluconobacter suboxydans) at different pH values, glucose concentrations and phosphate buffer concentrations was studied. Bacterial growth, gluconic acid accumulation and 5-oxogluconate production were related to both pH and phosphate buffer concentration in the medium.

In media containing 2-3% glucose, 0.3% yeast extract and 0.3 M phosphate buffer, the optimal pH range for the bacterial growth was pH 6.4-7.0; the optimal pH range for gluconate production was pH 6.4-6.8; and the optimal pH range for 5-oxogluconate production was pH 6.6-7.0. Lowering the pH to 6.4 favored gluconate accumulation …


Ua66/8/2 Growing Season In Kentucky 1948-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson May 1979

Ua66/8/2 Growing Season In Kentucky 1948-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson

WKU Administration Documents

Kentucky Climate Center report number 21 Growing Season in Kentucky


Kentucky Warbler (Vol. 55, No. 2), Kentucky Library Research Collections May 1979

Kentucky Warbler (Vol. 55, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


The Histopathology Of Acanthocephalan Infections In The Rainbow Darter, Etheostoma Caeruleum, J. Melissa Mcdonough May 1979

The Histopathology Of Acanthocephalan Infections In The Rainbow Darter, Etheostoma Caeruleum, J. Melissa Mcdonough

Masters Theses & Specialist Projects

Responses of naturally infected Etheostoma caeruleum to the presence of the acanthocephalans, Acanthocephalus dirus and Pomphorhynchus bulbocolli, were observed in 10u sections of intestines stained with hematoxylin and eosin. Both parasite species caused tissue damage to the host and elicited host responses. The major difference in parasite destruction was shallow tissue penetration by A. dirus proboscides while the proboscides of P. bulbocolli had deeper penetration and capsule formation. The most common parasite was P. bulbocolli, yet concurrent infections were not uncommon. Effects of concurrent infection were a combination of single species effects on the host. Connective tissue hyperplasia was …


A Taxonomic & Physiographic Survey Of Scirpus In Kentucky With Problem Species Complex Analysis, Sally Arnold May 1979

A Taxonomic & Physiographic Survey Of Scirpus In Kentucky With Problem Species Complex Analysis, Sally Arnold

Masters Theses & Specialist Projects

The genus Scirpus was analyzed according to species occurrence and physiographic distribution in the State of Kentucky. The morphology of three taxonomic problem complexes, Scirpus atrovirens-georgianus, Scirpus validus-acutus, and Scirpus cyperinus-eriophorum-pelius-pedicellatus was evaluated to determine whether or not their components are distinct among the Kentucky specimens. Remaining taxa were likewise evaluated and identified. A key to Scirpus in Kentucky and a taxonomic treatment are presented.


Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi May 1979

Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi

Masters Theses & Specialist Projects

In Rough River Lake, Kentucky, some aspects of the ecology of larval and juvenile fishes were investigated from April – August, 1978. Larval fishes were collected weekly from the upper reaches of the lake from the surface and bottom, during daylight and dark periods.

Twenty-three species and three categories of unknown larval and juvenile fishes, represented by 177,119 individuals, were collected. White bass and logperch larvae were the first to appear on April 15 with surface water temperatures of 18.5 C. Gizzard shad larvae dominated net collection while Lepomis spp. were the second most abundant. Larvae were primarily concentrated …


The Early Life History Of The White And Black Crappie In Rough River Lake, Kentucky, Gary Overmann May 1979

The Early Life History Of The White And Black Crappie In Rough River Lake, Kentucky, Gary Overmann

Masters Theses & Specialist Projects

Crappies spawned in Rough River Lake from April 29 to July 9. Larvae were first collected on May 3 when the lake temperature reached 17 C. A total of 7369 crappie was taken from may 3 to August 1. The maximum number of crappies occurred from May 30 to June 20. The developmental chronology was described for specimens 4.75 mm to 29 mm total length. Meristic characters averaged 10.8 for preanal myomere count, 21.1 for postanal myomere count, 31.9 for total myomere count and 0.62 for preanal length to postanal length ratio. Densities of larvae were low early in the …


Ua77/1 Western Alumnus, Vol. 50, No. 4, Wku Alumni Association Apr 1979

Ua77/1 Western Alumnus, Vol. 50, No. 4, Wku Alumni Association

WKU Administration Documents

Alumni magazine published by WKU. This issue has the following articles:

  • Harrison, Lowell. Wanted: Your Memories
  • Highland, Jim. Dr. John Minton Named Interim President
  • An Emotion-Filled Thanks for Harriet and Dero Downing
  • Armstrong, Don. C. Ray Franklin Gives Priceless Antiques for Display at Kentucky Museum
  • Conway, Sheila. An Iranian Ordeal for Carlton Jackson
  • Tharp, Kerry. Larry Cuzzort Blazes to Two-Mile Record
  • Salato, Nancy. Speech Clinic Gets New Quarters
  • Western Offers Courses for Study Abroad
  • Newspaper Course Covers Death & Dying
  • Grant Provides Course for Understanding Arts
  • Public Relations Students Promote Financial Aid Information
  • Medical Technology Students Study in Rural Areas …


Ua66/6/2 Proceedings Of The Third Symposium On Larval Fish, Wku Biology Feb 1979

Ua66/6/2 Proceedings Of The Third Symposium On Larval Fish, Wku Biology

WKU Administration Documents

Proceedings of the Third Symposium on Larvel Fish. Contains:

  • Hoyt, Robert, et al. Observations on the Larval Ecology of the Smallmouth Buffalo
  • Conner, John. Identification of Larval Sunfishes (Centrarchidae: Elassomidae) from Southern Louisiana
  • Snyder, Darrel. Myomere and Vertebra Counts of the North American Cyprinids and Catostomids
  • Baker, James. Larval Development of the Greenside Darter, Etheostoma blennioides newmanii
  • Fuiman, Lee. Materials for a Description of Lake Chubsucker (Erimyzon sucetta) Larvae
  • Kranz, Vincent et al. Development of the Young of the Creek Chub Semotilus atromaculatus
  • Graser, Lee. Spatio-temporal Distributions of t Clupeid Larvae in Barkley Reservoir
  • Kindschi, Greg, et al. Notes …


Kentucky Warbler (Vol. 55, No. 1), Kentucky Library Research Collections Feb 1979

Kentucky Warbler (Vol. 55, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Evaluation Of Body Size Parameters In Elite Angus Cattle, Wilson Stone Dec 1978

Evaluation Of Body Size Parameters In Elite Angus Cattle, Wilson Stone

Masters Theses & Specialist Projects

The cattle shown at the prestigious All-American Angus Futurity were studied in order to evaluate the relationship between various body measurements. The measurements taken included wither height, hip height, body length, fat thickness,and weight. Also, these measurements were analyzed in order to determine if Angus cattle had gained in genetic frame size. Data were collected for the 805 animals shown in the years 1974 through 1978.

The cattle were grouped into classes based upon sex and age prior to any statistical procedures being performed. Means of classes were used in order to evaluate sex differences and bulls were found to …


Ua11/2 Wku Holsteins Are National Leaders In Milk & Butterfat Production, Wku Public Affairs Nov 1978

Ua11/2 Wku Holsteins Are National Leaders In Milk & Butterfat Production, Wku Public Affairs

WKU Administration Documents

Press release regarding the WKU holstein herd.