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Anatomy and Physiology Syllabus for Community Colleges (open access)

Anatomy and Physiology Syllabus for Community Colleges

This syllabus includes both lecture notes and laboratory activities for a two-semester anatomy and physiology community college course. The syllabus is based on a 16-week semester that is comprised of a three-hour lecture section and a one-hour laboratory class each week. Both the lecture course and laboratory are necessary to fulfill the requirement for anatomy and physiology. Laboratory activities coincide with lectures to enhance understanding of each topic by providing visual and hands-on experiments for the concepts learned in the lecture. Laboratory quizzes will be given each week to help students maintain a working knowledge of the material learned in the laboratory. This course is appropriate for the typical anatomy and physiology student and should benefit both students who plan to major in biology and also those who are non-biology majors. Because subject matter in anatomy and physiology is quite difficult, the importance of attendance and good study skills is stressed.
Date: May 2000
Creator: Schulz, Leslie
System: The UNT Digital Library

General Biology Lecture and Laboratory Curriculum Outline in a Two or Four-Year College

Access: Use of this item is restricted to the UNT Community
In July of 1999, I wrote to 24 Texas junior and community colleges (and one four-year institution) describing my thesis agenda of a general biology lecture and laboratory syllabus for introductory biology students. I requested the titles and authors of the general biology textbooks and laboratory manuals they were currently using, the publishers of these texts, and the edition of said texts. I then contacted publishers of the various textbooks who, in turn, directed me to the Dallas-area representatives for further inquiries. I assimilated the various authors' general biology topics into a two-semester syllabus of lecture and one semester of laboratory. The document is not a text manuscript, but an all-inclusive listing of a general biology syllabus broken down by subject.
Date: August 2000
Creator: Moreland, Amy L.
System: The UNT Digital Library
Investigations of neuronal network responses to electrical stimulation in murine spinal cultures. (open access)

Investigations of neuronal network responses to electrical stimulation in murine spinal cultures.

Spontaneous activity in neuronal networks in vitro is common and has been well documented. However, alteration of spontaneous activity in such networks via conditioning electrical stimulation has received much less experimental attention. Two different patterns of electrical stimulation were used to enhance or depress the level of spontaneous activity in spinal cord cultures. High-frequency stimulation (HFS), a method routinely shown to increase the efficacy of synaptic transmission, was employed to augment spontaneous activity. Low-frequency stimulation (LFS), the technique often applied to depress synaptic efficacy, was employed to decrease spontaneous activity. In addition, LFS was used to reverse the effect of HFS on spontaneous activity. Likewise, HFS was applied to counter the effect of LFS. Because these networks were grown on multi-microelectrode plates (MMEPs), this allowed the simultaneous stimulation of any combination of the 64 electrodes in the array. Thus, the possible differences in response to single versus multi-electrode stimulation were also addressed. Finally, test-pulses were delivered before and after the conditioning stimulation on the same stimulation electrode(s) in order to assess the change in mean evoked action potentials (MEAPs). Dissociated spinal tissue from embryonic mice was allowed to mature into self-organized networks that exhibited spontaneous bursting activity after two weeks …
Date: December 2001
Creator: Sparks, Christopher A.
System: The UNT Digital Library
The Use of Genetic Polymorphisms and Discriminant Analysis in Evaluating Genetic Polymorphisms as a Predictor of Population (open access)

The Use of Genetic Polymorphisms and Discriminant Analysis in Evaluating Genetic Polymorphisms as a Predictor of Population

Discriminant analysis is a procedure for identifying the relationships between qualitative criterion variables and quantitative predictor variables. Data bases of genetic polymorphisms are currently available that group such polymorphisms by ethnic origin or nationality. Such information could be useful to entities that base financial determinations upon predictions of disease or to medical researchers who wish to target prevention and treatment to population groups. While the use of genetic information to make such determinations is unlawful in states and confidentiality and privacy concerns abound, methods for human “redlining” may occur. Thus, it is necessary to investigate the efficacy of the relationship of certain genetic information to ethnicity to determine if a statistical analysis can provide information concerning such relationship. The use of the statistical technique of discriminant analysis provides a tool for examining such relationship.
Date: May 2002
Creator: Howell, Bruce F.
System: The UNT Digital Library

A Physiological Age-Grading System for Female Hydrellia pakistanae Deonier (Diptera: Ephydridae)

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Conflicting opinions about the effectiveness of H. pakistanae as a biological control agent for hydrilla prompt researchers to find a method for assessing the fly's success. Developing a physiological age-grading system for the fly using ovarian morphology to detect changes in reproductive activity is useful for evaluating reproductive status of the fly in field populations. Changes in the appearance of follicular relics in ovaries with oviposition provide a reliable method to estimate fecundity. Characteristics of follicular relics were used to develop a system with eight physiological age classes, three nulliparous and five parous. Changes that occur in the fat body were used to assist in classification of nulliparous females or those with low egg counts.
Date: December 2002
Creator: Lenz, Jennifer Marie
System: The UNT Digital Library
Investigation of Pyrimidine Salvage Pathways to Categorize Indigenous Soil Bacteria of Agricultural and Medical Importance and Analysis of the Pyrimidine Biosynthetic Pathway's Enzyme Properties for Correlating Cell Morphology to Function in All Phases of Growth (open access)

Investigation of Pyrimidine Salvage Pathways to Categorize Indigenous Soil Bacteria of Agricultural and Medical Importance and Analysis of the Pyrimidine Biosynthetic Pathway's Enzyme Properties for Correlating Cell Morphology to Function in All Phases of Growth

This dissertation comprises three parts and is presented in two chapters. Chapter 1 concerns Arthrobacter, a bacterium with an intriguing growth cycle. Whereas most bacteria exist as either a rod or coccus, this bacterium shares the rod/coccus lifestyle. It therefore seemed important to examine the growth regulatory pathways from the rod and coccus. The committed step, that catalyzed by aspartate transcarbamoylase (ATCase), in the pyrimidine biosynthetic pathway was chosen. The ATCase in Arthrobacter is like the well known Pseudomonas enzyme except that it has an active dihydroorotase (DHOase) associated. Included in Chapter 1 is the description of a microorganism, Burkholderia cepacia, whose ATCase has characteristics that are at once reminiscent of bacteria, mammals, and fungi. It differs in size or aggregation based on environmental conditions. In addition, it has an active DHOase associated with the ATCase, like Arthrobacter. B. cepacia is important both medically and for bioremediation. Since B. cepacia is resistant to most antibiotics, its unique ATCase is a prime target for inhibition. Whereas the first chapter deals with the de novo pathway to making pyrimidines, which is found mainly in the lag and log phase, Chapter 2 addresses the salvage pathway, which comes more into play during the …
Date: May 2003
Creator: Meixner, Jeffery Andrew
System: The UNT Digital Library

Integrating Concepts in Modern Molecular Biology into a High School Biology Curriculum

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More so than any other science in the past several decades, Biology has seen an explosion of new information and monumental discoveries that have had a profound impact on much more than the science itself. Much of this has occurred at the molecular level. Many of these modern concepts, ideas, and technologies, as well as their historical context, can be easily understood and appreciated at the high school level. Moreover, it is argued here that the integration of this is critical for making biology relevant as a modern science. A contemporary high school biology curriculum should adequately reflect this newly acquired knowledge and how it has already has already begun to revolutionize medicine, agriculture, and the study of biology itself. This curriculum provides teachers with a detailed framework for integrating molecular biology into a high school biology curriculum. It is not intended to represent the curriculum for an entire academic year, but should be considered a significant component. In addition to examining key concepts and discoveries, it examines modern molecular techniques, their applications, and their relevance to science and beyond. It also provides several recommended labs and helpful protocols.
Date: August 2003
Creator: Parker, Timothy P.
System: The UNT Digital Library
Possible uses of North Texas Plants and Animals in Elementary Science (open access)

Possible uses of North Texas Plants and Animals in Elementary Science

This thesis aimed to study plants and animals of North Texas which are adaptable for use in elementary science. In this study, 15 groups of plants and animals were selected as representative ones and among other benefits, each group of organisms was examined for its contributions to a limited understanding of bilogical principles.
Date: May 1937
Creator: Millican, Addie
System: The UNT Digital Library
Percolation, Capillarity and Chresard of Representative Denton County Soils (open access)

Percolation, Capillarity and Chresard of Representative Denton County Soils

This paper deals with a study of the chresard, percolation, and capillarity of twenty representative Denton County soils. The group of soils chosen vary greatly in texture thus affording excellent material for comparative studies of edaphic factors based upon this property.
Date: August 1938
Creator: Quimby, Don Clarence
System: The UNT Digital Library
Moisture Relations of the Soils of Denton County (open access)

Moisture Relations of the Soils of Denton County

In this research, study was made of representative soils of denton County (Texas) with the aim of correlating various soil-moisture factors through experimental analyses. Two accepted hypotheses of soil-moisture relations have been substantiated by experiment with Denton County soils.
Date: August 1936
Creator: Laufer, Hymie.
System: The UNT Digital Library
The Ecology of Chlorohydra Viridissima in a Small Perennial Pond (open access)

The Ecology of Chlorohydra Viridissima in a Small Perennial Pond

The purpose of this study is to determine the influence of chemical, physical, and bilogical factors on th seasonal variation in population and on reproduction of Chlorohydra Viridissima (Schulze) in a small pernnial pond.
Date: August 1937
Creator: Graham, Elizabeth Coffee
System: The UNT Digital Library
A Comparative Study of the Bottom Fauna of four Texas Lakes (open access)

A Comparative Study of the Bottom Fauna of four Texas Lakes

This thesis attempted to study the bottom productivity both qualitatively and quantitatively with reference to the distribution of bonthos. The study of the bottom fauna in large reservior lakes is a relatively new field. This work will give more information on an unknown field than previously existed, although its scope is not intend to be exhaustive.
Date: August 1938
Creator: Lamb, Leonard D.
System: The UNT Digital Library
A Correlation of the Edaphic Factors with the Vegetation of the Woodbine Sands, Denton County, Texas (open access)

A Correlation of the Edaphic Factors with the Vegetation of the Woodbine Sands, Denton County, Texas

The purpose of this study was to correlate the Vegetation of the Woodbine Sands with the edaphic factors. In the laboratory an analysis of the edephic factors was made of the twenty-two soil types collected from the three formations. The results of these and other analysis are shown in tables and graphs. The results indicate that the vegetational cover of an area that is uniform in its origin and in its resident soil factors is determined by the edaphic factors present.
Date: August 1936
Creator: Graham, H. L.
System: The UNT Digital Library
Studies on the Bacterial Flora of Milk, Ice Cream, and Beverages in Denton, Texas (open access)

Studies on the Bacterial Flora of Milk, Ice Cream, and Beverages in Denton, Texas

The purpose of this study is to observe the frequency of occurrance of members of the colon group in various brands of milk, milk products, and soft drinks marketed in the city of Denton, and to determine the total number of bacterial organisms occuring in these products from week to week.
Date: August 1938
Creator: Smith, William Russell
System: The UNT Digital Library
A Study of Plankton Dilution in Source Streams Compared with that of Lake Dallas Proper (open access)

A Study of Plankton Dilution in Source Streams Compared with that of Lake Dallas Proper

This study was a comparative study of Plankton of Lake Dallas and the three main source streams. Based on the analysis of data, which was presented relative to the organisms taken from the lake and from the source streams, the results obtained are discussed, the Plankton seem to be largely autogenetic in Lake Dallas, the source streams Elm Fork and Clear Creek form a dilution process.
Date: August 1936
Creator: Evans, Archibald A.
System: The UNT Digital Library
Bacterial Survey of Representative Denton County Wells with Special Reference to Sanitation (open access)

Bacterial Survey of Representative Denton County Wells with Special Reference to Sanitation

This thesis aimed to study the seventy-two representative wells of Denton County and to determine the possibilities of infection with typhoid organism. The sanitary survey and the test for Colon-Aerogenes bacteria show that 55% of the 72 wells studied are unsanitary, 27% are sanitary, and 18% are doubtful.
Date: June 1937
Creator: Roberts, Sally Stevens
System: The UNT Digital Library
A Study of the Phytoplankton Population of Lake Dallas (open access)

A Study of the Phytoplankton Population of Lake Dallas

The limnological investigation of any body of water is undertaken in order to secure more accurate information concerning the factors which play an important role in fish production or sanitation. This study shows the qualitative and quantitative planktonic algae in Lake Dallas, for the year 1937-38.
Date: June 1938
Creator: Bagwell, Russell L.
System: The UNT Digital Library
A Yearly Study of the Bacterial Flora of Lake Dallas Water with Special Reference to Sanitation (open access)

A Yearly Study of the Bacterial Flora of Lake Dallas Water with Special Reference to Sanitation

The purpose of this thesis is to determine the relative numbers of colon bacteria in the water of Lake Dallas.
Date: June 1937
Creator: Foster, Edwin Michael
System: The UNT Digital Library
The Vegetation and Habitat Factors of Red River County, Texas (open access)

The Vegetation and Habitat Factors of Red River County, Texas

The aim of this study has been to measure some of the ecological factors in a series of plant habitats and their relation to the existing vegetation in selected twenty soil types of Red River County, Texas.
Date: August 1938
Creator: Adams, Exa T.
System: The UNT Digital Library
Variations in Soil Fungi of Ten Representative Soils of Denton, County, Texas (open access)

Variations in Soil Fungi of Ten Representative Soils of Denton, County, Texas

This study attempted to examine representative soils of Denton County in an effort to determine seasonal and soil type variations in the fungous flora both quantitatively and qualitatively.
Date: August 1938
Creator: Floyd, Mary Louise
System: The UNT Digital Library
The Origin of Ova in the Adult Opossum (open access)

The Origin of Ova in the Adult Opossum

This study attempted to determine whether ova are formed from the epithelial covering of the ovary during sexual maturity, and if so to determine how they are formed and to see if there is any relation between the formation and the breeding season.
Date: August 1938
Creator: Everett, Newton Bennie
System: The UNT Digital Library
A Correlation of the Habitat Factors with the Quantity of Bacterial Colonies as Observed by the Direct Microscopic Method on Twenty Soils of Denton County, Texas (open access)

A Correlation of the Habitat Factors with the Quantity of Bacterial Colonies as Observed by the Direct Microscopic Method on Twenty Soils of Denton County, Texas

The aim of this study is to determine what factors are most important in controlling the number of bacterial colonies found in twent represntative Denton County (Texas) soils during the growing season.
Date: August 1937
Creator: Roach, Cornelia Ann
System: The UNT Digital Library
The Incidence of Colon Bacteria on the Hands of North Texas State Teachers College Students (open access)

The Incidence of Colon Bacteria on the Hands of North Texas State Teachers College Students

This investigation has for its aim the determination, in a measure, of the degree of personal sanitation existent among students at North Texas State Teachers College, Denton, Texas.
Date: 1946
Creator: Hooper, Eugene
System: The UNT Digital Library
Developing Range Condition Classes for the North Grand Prairie of Texas (open access)

Developing Range Condition Classes for the North Grand Prairie of Texas

This paper deals with a study of the ranch lands in Cooke, Wise, Denton, and Montague Counties, which are located in the North Grand Prairie of Texas.
Date: 1946
Creator: McConnell, Mack
System: The UNT Digital Library