Life Sciences Commons^™

Tiger Restoration In Asia: Ecological Theory Vs. Sociological Reality, Ronald Tilson, Philip J. Nyhus, Neil Franklin

Faculty Scholarship

No abstract provided.

Land Use Patterns In Relation To Lake Water Quality In The Lake George And Oaks Pond Watersheds, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Other Area Studies

There has always been an inexplicable wonder associated with the beauty of Maine lakes. In addition to their aesthetic value, lakes and ponds provide important habitats for aquatic and terrestrial wildlife. The attraction of the lake's natural beauty, however, can increase recreational pressures that may lead to human induced eutrophication. Lake George and Oaks Pond were chosen as the Colby Environmental Assessment Team's (CEAT) study sites due to the concern about potential human induced eutrophication of both water bodies. Lake George and Oaks Pond are situated in southern Somerset County, Maine, and experience heavy recreational and developmental uses. Neither water …

Land Use Patterns In Relation To Lake Water Quality In The Lake Wesserunsett Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Other Area Studies

The Colby Environmental Assessment Team (CEAT) engaged in an extensive data collection and analysis effort from September to December of 2000 to produce a comprehensive evaluation of the ecological health of the Lake Wesserunsett ecosystem. CEAT examined several factors related to lake water quality, including land use within the watershed, the impacts of residential and commercial development, and physical and chemical measurements of the lake itself. Lake water quality was the primary focus of the study due to its predictive value regarding overall watershed function and viability. The accumulation of nutrients in a lake due to surface runoff and erosion …

Shrimp Aquaculture: An Analysis Of Its Evolution And Organization; And The Development Of A Shrimp Growth Model, Adam Rana

Honors Theses

This paper examines the impetus for the development and subsequent rise of the shrimp aquaculture industry and continues by exploring a model that seeks to improve shrimp farmers' harvests by identifying specific variables affecting shrimp growth. Evidence reviewed from 1980 through today suggest that technological advancements, reduced prices, and increases in both the supply and demand for shrimp are positively associated with the industry's rapid ascent. The introduction of vertically integrated shrimp farms along with the ability for shrimp farmers to differentiate their products are also correlated with the industry's growth. Variables affecting shrimp growth were also studied to determine …

Land Use Patterns In Relation To Lake Water Quality In The Great Pond Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Great Pond (2012, 2010, 1998)

Lakes are natural resources, which have many effects on the land surrounding them, They support adjacent communities by providing water and regulating temperatures, helping to define the surrounding ecosystem, and serving as sources of drinking water as well as recreation. The prolonged presence of human activity in a watershed can disturb the physical and chemical cycles of the lake and its surrounding ecosystems (Henderson-Sellers and Markland 1987). Over time, lakes undergo a process called eutrophication, a natural aging process during which the nutrient levels increase and dissolved oxygen levels decrease (Smith and Smith 1998). As the lake ages or becomes …

Keeping Problem Tigers From Becoming A Problem Species, Philip J. Nyhus, R L. Tilson

Faculty Scholarship

No abstract provided.

Celluloid Blackness : Race, Modernity, And The Conflicted Roots Of American Cinema (1915-1939), Lincoln Farr

Honors Theses

Introduction: "The Problem of the Twentieth Century" In a full page interview in the New York Times on May 29, 1912, the Swiss psychiatrist Dr. Carl G. Jung told the American people, "It seems to me that you are about to discover yourselves. You have discovered everything else-all the land of this continent; all the resources, all the hidden things of nature."Jung used the interview to address the American people, at a moment which he somehow recognized as crucial in the development of human civilization. America, the "tragic" country which he struggled to comprehend, would soon become the harbinger of …

Land Use Patterns In Relation To Lake Water Quality In The Messalonskee Lake Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Other Area Studies

The main purpose of this study is to assess the current land use patterns and their influences on the water quality of Messalonskee Lake, including the biotic and abiotic parameters which are involved. More specifically, four main objectives were proposed. First, was to calculate the water budget and flushing rate for Messalonskee Lake. Second, was to determine the influence of current and historical land use patterns on lake water quality. Third, was to utilize gathered information to construct a phosphorus model, which will enable future water quality predictions to be made. Our fourth and final objective was to make recommendations …

Transitions In Masculinity And Hemingway's Developed "Code", Daniel Polk

Honors Theses

The "Hemingway Code" is much more than two words that fit nicely together for a scholar's usage; the words signify a much deeper championing of masculinity, almost a haunting presence. For Ernest Hemingway living life every day, every moment with its fullest masculine fervor, became an obsession, a never-ending quest to be at one with the attitude of never complaining, never crying out, panicking, thinking too much, or regretting. To live a manly life in a series of tactical victories, performed with steadfast ritualistic mannerisms, is to embody masculinity, and therefore the "Hemingway Code."

Post-Glacial Vegetational History Of The Great Bog, Belgrade, Maine, John Dawson

Senior Scholar Papers

A 6-m vibracore taken from the Great Bog in Belgrade, Maine, was sampled for pollen analysis at 10-cm intervals. Samples were processed in the laboratory using standard techniques developed by Faegri and Iversen. The sediment in the sample was reduced to a residue of pollen which was mounted on microscope slides. A minimum of 300 pollen grains was identified and counted at each level using a compound microscope at 400x magnification. Five radiocarbon dates were taken from the core at stratigraphic boundaries. Lastly, pollen concentration and pollen accumulation rates were calculated. The uppermost 3.8 m of the core is fine …

Use Of Microprojectile Bombardment In Transient Expression Assays To Analyze Protochlorophyllide Reductase Gene Expression In Greening Maize Seedling Leaf Cells, Jennifer J. Marden

Senior Scholar Papers

In young cells of leaf meristems the progenitors of chloroplasts are small organelles known as proplastids, which divide and differentiate into chloroplasts. However, in the absence of light, proplastids undergo a different sequence of development and become etioplasts. When light is supplied to etiolated plants during the "greening" process, etioplasts differentiate into chloroplasts containing chlorophyll. An important light dependent step in chlorophyll biosynthesis is the photoreduction of protochlorophyllide to chlorophyllide by the NADPH:protochlorophyllide reductase (PCR) enzyme. This enzyme is present at high activity only in etiolated tissue and during early stages of light-induced chlorophyll synthesis. The enzyme and its corresponding …

The Physiological, Enzymatic, And Genetic Characterization Of Staphylococcus Sp. Chromium (Vi) Reductase Function, Matthew J. Trudeau

Senior Scholar Papers

A strain of Staphylococcus isolated by Dr. Fekete at the Sandia National Laboratory toxic metal dumping site in Sandia, New Mexico. has been found to reduce toxic Cr(VI) to the less toxic Cr(IlI) state. We have ascertained the environmental parameters for optimal bacterial growth and Cr(VI) reduction. This knowledge may be employed in a comprehensive bioremediation scheme designed to accelerate natural reparation of that Sandia ecosystem. In addition we have investigated the genetic and enzymatic basis for this Cr(VI) reducing ability. This information may allow us to create more effective bioremediation schemes based on the comprehensive knowledge of enzyme and …

Molecular Genetic Analysis Of The Interaction Between The Bacterial Pathogen Xanthomonas Campestris Pv. Vesicatoria And The Tomato Plant, Peter M. Antall

Senior Scholar Papers

X. campestris pv. vesieatoria (Xcv) Is a bacterial pathogen of tomato and pepper. Xcv is able to infect most tomato lines. causing bacterial spot disease. which can lead to death. A strain of Xcv exists. however. which elicits a resistance response In a particular tomato line. ThIs avirulent strain carries a single locus. the aviru1ence gene avrRxv, whIch specifies the resistance inducing activity. Accordlng to Flor's gene for gene model, a corresponding gene must exist in the resistant plant. Evidence exists for this gene but it has not yet been cloned. In this study, the role ofthe avrRxv gene product …

A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College

Colby College Watershed Study: Other Area Studies

In May of 1990, Tilcon-Maine, Inc. submitted an application to mine gravel on the east side of Horse Point Road on Horse Point in the Town of Belgrade. The project site covers 46 acres and the proposed excavation covers 16 acres. An estimated 740,000 cubic yards of material will be removed over a period of six or seven years (Pfister, pers. comm.). According to Tilcon (Timson et al., 1990) the maximum depth of the pit will be 78 feet and the bottom of the pit will be a minimum of 6 feet above the water table. At the present time …

Symbolic Interactionist And Neurophysiological Models Of Action Towards An Integration, David Spencer Fearon

Senior Scholar Papers

This research proposal introduces an integrated study of action and human conduct from the perspectives of symbolic interaction and neurophysiology. Because of their traditionally disparate subject matter, the fields of sociological social psychology and the neurosciences seldom meet; however, I have found significant common ground to justify an integrated approach to the study of action. Symbolic interactionists study human group life and conduct in society. The neurosciences deal with the physiology of the central nervous system, its structure and functions in behavior, its chemical composition, and electrochemical activity, and the effects damage has on behavior. Both fields analyze the same …

Rise To Power Of Senator Joseph R. Mccarthy: Reflections Of The Cold War Mccarthy Era In American Film, Scott Lainer

Honors Theses

The common bond between much of the film industry and Joseph McCarthy was insecurity and the drive for national approval. If one grasps the specific characteristics of McCarthy the man, and the methods of these politically "inspired" movies, we can to better place the period into context and acknowledge the fact that, if the citizenry is not aware, and is again caught by an ever-building wave of trickle down sentiment, the 1950s might not prove to be an isolated period in American history. Insecurity was not a fifties novelty. It still exists, and could potentially escalate anti-Communist policy and sentiment …

Optical Management Of The Spruce-Fir Forest Against The Spruce Budworm, Gari B. Simon

Senior Scholar Papers

Proper management of the softwood forest-budworm ecosystem is vital to the future prosperity of Maine. In choosing a management strategy, economic as well as ecological effects must be considered. This paper constructs a computer simulation model of the budworm-forest ecosystem in order to better evaluate effects of different types of forest management. The budworm-softwood forest ecosystem is a highly complicated system involving three dynamic population systems: the host tree population, the budworm population and the foliage population. Each system is modeled, by regression analysis, to observations collected by entomologists over the past half century. There are large gaps of knowledge …

Investigation Of Barbel Regeneration In The Catfish Ameiurus Nebulosus, Ruth-Marie E. Griswold

Senior Scholar Papers

It has been clearly demonstrated that the barbels of Ameiurus nebulosus regenerate completely following amputation. The current investigations involve experimentation dealing primarily with determination of the mechanisms by which regeneration occurs. However, prior to conducting a series of experiments designed to elucidate the processes which initiate regeneration, several preliminary investigations to determine normal barbel structure and regeneration were made.

Brain dissection of an adult catfish confirmed that innervation of the barbels is by both the fifth and seventh cranial nerves, and not solely by the seventh cranial nerve as suggested by Olmstead (1920). Further information regarding normal barbel innervation and …

Psychological Mechanisms In Learning Mathematical Concepts, Louis Fallon

Senior Scholar Papers

Psychological Mechanisms in learning Mathematical Concepts: Jean Piaget, the Swiss psychologist, did theoretical and experimental work based on the idea that there is an invariant heirarchy of responses by which everyone acquires mathematical concepts. Basically we tried to use the geometric symmetry concept as a vehicle for studying this process of concept acquisition using subjects ranging in age from three to 25. They were asked to reproduce a series of stimulus "pictures," simple geometric patterns, which could be used without major alteration for each age group. Symmetric responses were divided into four types which were set up into a heirarchy …

Phospholipid Inhibitor Inactivation As A Mechanism For The Activation Of Renin By Cadmium Ions, Thomas Emanuel Gallant

Senior Scholar Papers

Incubation of bovine kidney homogenates with CdCl or ZnCl2 doubles their renin activity as measured by rat bioassay. It is suggested that the activation of renin by these divalent cations results from their interference with the renin inhibitor system described by Sen et al., (1968). Failure of the inhibitor to reassociate with renin upon removal of cadmium ions by EDTA supports their renin control model. It is suggested that either renin samples prepared directly from tissue without the use of acetone powder preparations contain little phospholipase A or cadmium inactivates phospholipase A. In the absence of active phospholipase A, conversion …

Renin Granularity In The Mouse Kidney, R. Williams Soller

Senior Scholar Papers

Briefly. the rennin-angiotensin-aldosterone triangle can be thou ht of as a regulator of renal perfusion. Renin, released by the kidney in response to any threat in its perfusion n, acts on its substrate to produce angiotensin I, a mild vasoconstrictor which by means of plasma converting enzymes secretes angiotensint II. This latter product not only stimulates aldosterone output by the adrenals, but also supports the animals’ blood pressure. With aldosterone binding at the distal tubules in the kidney and this causing increased sodium retention, restoration of renal perfusion occurs – a phenomenon which shuts off the original signal for rennin …

Attempt To Determine The Pattern Of Chromosomal Inheritance In The Intermediate Iris, Theodore Kellogg

Senior Scholar Papers

Intermediate iris containing 44 chromosomes have a low rate of fertility. This paper is an attempt to determine the reasons for this low fertility through a study of the chromosomal inhertiance of two intermediate iris that have been successfully hybridized. There are no literary records showing that the results of crossing two chromosome intermediate iris, so most of this paper is a report of lab work.

Study Of Proteinuria: Isolation Of Proteins From The Nephrotic Syndrome, Merrill C. Raikes

Senior Scholar Papers

One of the most puzzling phenomena of abnormal renal physiology is the occurrence of the nephrotic syndrome. The syndrome has been defined by a collection of clinical and pathological symptoms, but there is no correlation between the clinical and pathological symptoms nor is the etiology of the syndrome known. Proteinuria is probably the most distinguishing feature in the nephrotic syndrome, and there are two possible explanations for its occurrence: (1) the excessive amounts of protein found in nephrotic urine could be due to an increased basement membrane permeability in the glomerulus of the kidney or (2) dysproteinemia. An attempt has …

The Waterville Mail (Vol. 59, No. 52): May 9, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 51): May 2, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 50): April 25, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 49): April 18, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 48): April 11, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 47): April 4, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964

The Waterville Mail (Vol. 59, No. 46): March 28, 1906, The Mail Publishing Company

The Waterville Mail (Waterville, Maine)

Continues The Eastern Mail (July 1847-August 1863).
Published weekly, September 4, 1863 - May 9, 1906.
Publishers: Maxham & Wing (1863 - December 2,1885); Ephraim Maxham (December 1885); Wing & Wing (January 1886 - March 21, 1891); Charles G. Wing (March 21, 1891 - April 17, 1891); Prince & Wyman (April 17, 1891 - February 26, 1896); The Mail Publishing Company (February 26, 1896 - May 9, 1906).
See Gerould, W.G.: American newspapers, 1821-1836; Whittemore, E.C.: Centennial history of Waterville.
Colby Libraries catalog record (CBBcat): http://cbbcat.net/record=b1209701~S19
WorldCat record (OCLC): http://www.worldcat.org/oclc/10486964