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Effects Of A Bird Hazard Reduction Force On Reducing Bird/Aircraft Strike Hazards At The Atlantic City International Airport, Nj., Andrew J. Montoney, H. Christopher Boggs Oct 1993

Effects Of A Bird Hazard Reduction Force On Reducing Bird/Aircraft Strike Hazards At The Atlantic City International Airport, Nj., Andrew J. Montoney, H. Christopher Boggs

Wildlife Damage Management Conference

Bird-aircraft strikes at the Atlantic City International Airport (ACY) increased from 18 in 1989 to 37 in 1990. The number of bird-aircraft strikes involving gulls (Larus spp.) during this time rose from 6 to 27, a 350% increase. The predominant species involved in bird strikes was the laughing gull (L. atricilla). Pursuant to an interagency agreement between the U.S. Department of Transportation (USDOT), Federal Aviation Administration (FAA) and the U.S. Department of Agriculture (USDA)/ Animal and Plant Health Inspection Service (APHIS)/ Animal Damage Control (ADC), ADC established a Emergency/Experimental Bird Hazard Reduction Force (BHRF) at ACY …


An Evaluation Of Max-Flex Fast Fence™ For Reducing Deer Damage To Crops, John T. Owen, James B. Armstrong, H. Lee Stribling, M. Keith Causey Oct 1993

An Evaluation Of Max-Flex Fast Fence™ For Reducing Deer Damage To Crops, John T. Owen, James B. Armstrong, H. Lee Stribling, M. Keith Causey

Wildlife Damage Management Conference

A 2-year study was undertaken to assess the effectiveness of Max-Flex Fast Fence™ electric fencing materials (polytape) for reducing damage to crops. Specifically, our goal was to look at the efficacy of this product for the home gardener. In the first phase of the project, plots of approximately 1/40 acre were established in areas of historically high deer densities. Each plot was planted with soybeans and randomly assigned to 1 of 4 fencing configurations or to the open control group. Within each plot, 6' wide strips were tilled across the length. These tilled areas were checked for the presence of …


The Use Of Odors To Induce Avoidance Behavior In Pine Voles, Christopher J. Salatti, Anthony D. Woolhouse, John G. Vandenbergh Oct 1993

The Use Of Odors To Induce Avoidance Behavior In Pine Voles, Christopher J. Salatti, Anthony D. Woolhouse, John G. Vandenbergh

Wildlife Damage Management Conference

Commercial orchards, ornamental nurseries, and residential horticulture in North Carolina experience economic losses due to pine vole (Microtus pinetorum) depredation. Predator odors and the herbicide Casoron were tested as potential repellents for pine voles. To test for avoidance behavior, animals were allowed to build a nest in one of two chambers attached to each arm of a Y-maze. The cage containing the nest was treated with either a test repellent compound, methylene chloride (solvent control), or left unmanipulated (control). Animals were categorized as either maintaining or changing nest cage preference between pre-test and test periods. The number of …


Rejex-It™Ag-36, A Potential Tool To Protect Seeds From Bird Depredation, Peter F. Vogt Oct 1993

Rejex-It™Ag-36, A Potential Tool To Protect Seeds From Bird Depredation, Peter F. Vogt

Wildlife Damage Management Conference

The ever increasing bird populations (e.g., Black birds, geese etc.) are known to cause considerable losses to agriculture. This problem has reached serious proportions for crops that are farmed on large tracts and are seeded by aerial application such as rice and canola. ReJeX-iT™AG-36, a non-toxic, biodegradable bird aversion formulation, derived from food grade ingredients, has been proven in pen tests and field trials to be effective as a seed treatment to prevent birds from eating the treated seeds. The product does not harm the seeds or the effected birds in any way, even if ingested; it just makes the …


Status And Management Of Vole Damage To Horticultural Plantings In North Carolina, Peter T. Bromley, William T. Sullivan Jr. Oct 1993

Status And Management Of Vole Damage To Horticultural Plantings In North Carolina, Peter T. Bromley, William T. Sullivan Jr.

Wildlife Damage Management Conference

A trapping study in 1979 indicated that voles (Microtus pennsylvanicus and M. pinetorum) were distributed widely in North Carolina. In 1991, Extension Agents with the North Carolina Cooperative Extension Service were surveyed to determine the distribution, nature and severity of vole damage to horticultural plantings, home orchards, and other plantings. Data from the statewide trapping survey and the poll of agents coincided to indicate that voles, particularly pine voles, caused damage from the mountains to the coast. Existing, legal control methods were judged grossly inadequate by agents. Pursuant to the surveys, the North Carolina Pesticide Board and the …


Sixth Eastern Wildlife Management Conferences Summary And What Lies Ahead, James E. Miller Oct 1993

Sixth Eastern Wildlife Management Conferences Summary And What Lies Ahead, James E. Miller

Wildlife Damage Management Conference

I want to begin by expressing appreciation to Ed Jones, Mike King, Greg Yarrow, Pete Bromley, John Heisterberg, and others on the program committee for hosting and conducting this Sixth Eastern Wildlife Damage Management Conference. I also want to express our appreciation to the exhibitors, the National Animal Damage Control Association, and The Wildlife Society (TWS) for their support. I think those of you who are still here will join me in congratulating these people, organizations, and TWS for helping ensure a successful conference. As one of the people who perceived the need for this conference in the early 1980's, …


Can We Landscape To Accommodate Deer? The Tracy Estate Research Garden, Helen H. Heinrich, Susan Predl Oct 1993

Can We Landscape To Accommodate Deer? The Tracy Estate Research Garden, Helen H. Heinrich, Susan Predl

Wildlife Damage Management Conference

The landscape of New Jersey is remarkably rich in vegetation and open space, despite the state's reputation as the nation's most populous state. This landscape is increasingly the product of intense interaction between the white-tailed deer (Odocoileus virginianus) and both native and cultivated vegetation, particularly in suburban communities, where both the whitetail and the vegetation coexist in abundance. Nearly extirpated at the tum of the century due to over-hunting, the state's white-tailed deer population today exceeds 140,000 because habitat is ideal and hunting seasons are carefully regulated. In many instances, where landowners choose not to use hunting as …


A Survey Comparison Of Pest Control And Nuisance Wildlife Control Operators In Kentucky, Thomas G. Barnes Oct 1993

A Survey Comparison Of Pest Control And Nuisance Wildlife Control Operators In Kentucky, Thomas G. Barnes

Wildlife Damage Management Conference

A variety of factors including increased urbanization, decreased funding for governmental animal damage programs, and increases in some urban wildlife populations have resulted in a greater demand for urban nuisance wildlife control. Historically, this demand was met by Cooperative Extension Service (San Julian 1987), state fish and wildlife agency, or federal wildlife damage control employees (Bollengier 1987). These agencies provided educational materials, consultations, and/or physically removed animals. Recently, there is an increased demand for physical animal removal evidenced by increasing numbers of private pest control operators (PCO), companies that do general pest or insect control work, specializing in the removal …


Strategies To Address Human Conflicts With Raccoons And Black Bears In New Hampshire, Marsha E. Barden, Dennis Slate, Robert T. Calvert, Paul W. Debow Oct 1993

Strategies To Address Human Conflicts With Raccoons And Black Bears In New Hampshire, Marsha E. Barden, Dennis Slate, Robert T. Calvert, Paul W. Debow

Wildlife Damage Management Conference

The Cooperative Animal Damage Control program in New Hampshire has received increasing requests for assistance over the past 5 years. This trend is due largely to changing public concern over black bears (Ursus americanus) in residential areas and an epizootic of the Mid-Atlantic strain of rabies in raccoons (Procyon lotor). A growing number of requests is related to improper garbage storage and feeding of songbirds during late spring and summer. Some traditional methods, especially live- trapping and relocation, are not generally appropriate to resolve these conflicts. In this paper we discuss trends in requests for assistance …


The Applicability And Biopolitics Of Contraceptive Techniques For Deer Management, Robert J. Warren, Lisa M. White Oct 1993

The Applicability And Biopolitics Of Contraceptive Techniques For Deer Management, Robert J. Warren, Lisa M. White

Wildlife Damage Management Conference

While regulated public hunting or controlled lethal reduction programs are effective in controlling whitetailed deer (Odocoileus virginianus) populations in most areas, increasingly there are settings (e.g., urban and suburban environments) where such programs are either unsafe or publicly unacceptable. Past research with contraceptive techniques in deer have shown these techniques to be either ineffective or infeasible for managerial implementation. Current research with immunocontraceptives show promise as being both effective and feasible for field application. Immunocontraceptive vaccines can be delivered remotely and are highly effective in causing infertility in most treated does. Much more research is needed before these …


Use Patterns Of Nuisance Black-Crowned Night Herons On A Hydroelectric Dam In Eastern Tennessee, Michael A. Wefer, Joseph W. Lee, William G. Minser Oct 1993

Use Patterns Of Nuisance Black-Crowned Night Herons On A Hydroelectric Dam In Eastern Tennessee, Michael A. Wefer, Joseph W. Lee, William G. Minser

Wildlife Damage Management Conference

Black-crowned night heron (Nycticorax nycticorax) droppings are a problem on Fort Loudoun Hydroelectric Dam. Annual and daily use patterns were monitored to determine when and what areas of the dam the herons were using. The dam was used primarily during the breeding season (April-July) and received 24.2% more use in the evenings than in the morning. The most use occurred in June with a high of 211 birds 12 June 1991 and 266 birds 5 June 1992. Herons used band railings on the dam the most (66%) for perching. About 12% of the night herons using the dam …


Effectiveness Of Dimethyl Anthranilate And Eyespots For Reducing Feed Consumption By Starlings, Michael L. Avery, Raymond E. Matteson Oct 1993

Effectiveness Of Dimethyl Anthranilate And Eyespots For Reducing Feed Consumption By Starlings, Michael L. Avery, Raymond E. Matteson

Wildlife Damage Management Conference

The bird repellent properties of methyl anthranilate (MA) and dimethyl anthranilate (DMA) are well-established. Nevertheless, development of means to reduce the amount of chemical needed to effect satisfactory repellency would reduce costs and make their use even more attractive. Thus, we evaluated the usefulness of a visual stimulus for increasing DMA repellency. We offered groups of captive European starlings (Sturnus vulgaris) untreated food and OMA-treated food, and to some groups we also presented a putatively repellent eyespot pattern. As expected, a DMA concentration of 1.4% (g/g) reduced (P = 0.001) consumption of treated food compared to untreated; 0.3% …


Evaluating The Gas Cartridge For Coyotes In Controlling Badgers, Craig A. Ramey Oct 1993

Evaluating The Gas Cartridge For Coyotes In Controlling Badgers, Craig A. Ramey

Wildlife Damage Management Conference

Efficacy investigations were conducted in Pampa, TX to evaluate the use of the "GAS CARTRIDGE FOR COYOTES: (Canis latrans) for controlling problem badgers (Taxidea taxus) in burrows. This coyote cartridge with two active ingredients (sodium nitrate and charcoal), produces high concentrations of carbon monoxide when burned and is effective in controlling coyotes in dens. Badgers were live-trapped, immobilized, and equipped with mortality-indicating radio transmitters prior to their release. Movements were monitored for a minimum of 12 days prior to each initial efficacy test and for at least 3 days in follow up tests for survivors. Only occupied …


Public Policy Education: An Important Wildlife Management Opportunity, Paul D. Curtis Oct 1993

Public Policy Education: An Important Wildlife Management Opportunity, Paul D. Curtis

Wildlife Damage Management Conference

Suburban wildlife management issues are generating heated debate between citizen organizations, elected public officials, and state wildlife management agencies. Decisions are being made by town and county officials which directly impact or supersede state authority for managing resident wildlife. As an example, I will focus this discussion on the white-tailed deer (Odocoileus virginianus) management controversy at Durand Eastman Park, in the greater Rochester metropolitan area, New York.


Dispersal Of Ring-Billed Gull Nesting Colonies In New York State, James E. Forbes, Maury W. Bedford, William W. Beck, Brian V. Archuleta Oct 1993

Dispersal Of Ring-Billed Gull Nesting Colonies In New York State, James E. Forbes, Maury W. Bedford, William W. Beck, Brian V. Archuleta

Wildlife Damage Management Conference

Ring-billed gulls (Larus delawarenis) are adapting to rooftop nesting habitats throughout the Northeast and the Great Lake States. Presently, six such colonies exist in New York State. Noise, plus accumulations of droppings, feathers and nesting material, cause unsanitary conditions, structural damage, health problems, traffic problems and have lead to Occupational Safety and Health Administration citations. We began a 3-year project in 1991 at two locations, Niagara Falls and Syracuse, New York, to relocate nesting gulls to other nesting sites. Eight lethal and nonlethal control alternatives were considered and three nonlethal alternatives were selected. We concluded that: (1) the …


Status Of Alpha-Chloralose And Other Immobilizing/Euthanizing Chemicals Within The Animal Damage Control Program, Paul P. Woronecki, William L. Thomas Oct 1993

Status Of Alpha-Chloralose And Other Immobilizing/Euthanizing Chemicals Within The Animal Damage Control Program, Paul P. Woronecki, William L. Thomas

Wildlife Damage Management Conference

In 1992 the U.S. Department of Agriculture (USDA), Animal and Plant Health Inspection Service, Animal Damage Control (ADC) program was granted approval from the U.S. Food and Drug Administration (FDA), under a continuing Investigational New Animal Drug agreement, to use Alpha-chloralose (A-C) nationwide for capturing nuisance waterfowl, coots, and pigeons. FDA and ADC have imposed several requirements, restrictions and conditions on the operational use of A-C. Training and certification are required to use A-C and other approved immobilizing and euthanizing agents.


Perceptions And Knowledge Of Alabama Fruit And Vegetable Producers Towards Coyotes, M. Chad Philipp, James B. Armstrong Oct 1993

Perceptions And Knowledge Of Alabama Fruit And Vegetable Producers Towards Coyotes, M. Chad Philipp, James B. Armstrong

Wildlife Damage Management Conference

Members of the Alabama Fruit and Vegetable Producers Association (AFVP) were surveyed in 1992-1993 to assess their attitudes and knowledge of coyotes and the amount of perceived damage caused by coyotes. A mail-back questionnaire was developed and pilot tested. The revised questionnaire was sent to all members (N = 84) of the AFVP; individuals whose main income is the production of fruits and vegetables. Seventy-seven percent (n = 61) of those surveyed returned completed questionnaires. Tests for nonresponse bias were conducted and results showed no significant difference. Attitudes were assessed using a Likert scale where 1 = respondents favoring maximum …


Excluding Non-Migratory Canada Geese With Overhead Wire Grids, Martin S. Lowney Oct 1993

Excluding Non-Migratory Canada Geese With Overhead Wire Grids, Martin S. Lowney

Wildlife Damage Management Conference

Non-migratory urban Canada geese present complex problems requiring innovative techniques that are effective yet acceptable to contemporary society. A grid technique was modified and developed to discourage nonmigratory urban Canada geese from using water sources and thus abandoning adjacent areas. The technique is believed effective because it restricts the use of water resources for escape and reduces the required long take-off and landing zones of Canada geese. The grid successfully reduced non-migratory Canada geese from using three sites in northern Virginia. Several grid configurations and types of materials are discussed.


Characteristics Of The Private Nuisance Wildlife Control Industry In New York, Paul D. Curtis, Milo E. Richmond, Philip A. Wellner, Ben Tullar Oct 1993

Characteristics Of The Private Nuisance Wildlife Control Industry In New York, Paul D. Curtis, Milo E. Richmond, Philip A. Wellner, Ben Tullar

Wildlife Damage Management Conference

The nuisance wildlife control industry is rapidly expanding in New York State. To gain additional insight about this industry and the number of animals handled, we reviewed the 1989-90 annual logs submitted by Nuisance Wildlife Control Operators (NWCOs) to the New York State Department of Environmental Conservatlon (DEC). The specific objectives of this study were to determine: (1) the number and species of different wildlife responsible for damage incidents, (2) the cause of damage complaints, (3) the disposition of animals handled, (4) the location of damage events (i.e., urban, suburban, rural), and (5) an estimate of the economic impact of …


The Role Of The Nuisance Wildlife Control Practitioner In Urban Wildlife Management And Conservation, Lynn A. Braband Oct 1993

The Role Of The Nuisance Wildlife Control Practitioner In Urban Wildlife Management And Conservation, Lynn A. Braband

Wildlife Damage Management Conference

Private sector involvement in nuisance wildlife control has evolved from primarily part-time trappers to full-time firms with their own professional organization, the National Urban Wildlife Management Organization (NUWMA). The private sector plays a key role in urban wildlife management by providing an effective service in addressing human/wildlife conflicts. This role can be improved and expanded by enabling nuisance control practitioners to provide accurate information on wildlife biology, damage prevention, and even wildlife habitat promotion. Both government agencies and private organizations, such as NUWMA, can facilitate this by developing appropriate training, regulations, licensing procedures, standards of ethics, and continuing education programs.


A Cooperative Approach To Resolving A Marmot Damage Problem In An Urban Recreational Site, Layne R. Bangerter Oct 1993

A Cooperative Approach To Resolving A Marmot Damage Problem In An Urban Recreational Site, Layne R. Bangerter

Wildlife Damage Management Conference

The United States Army Corps of Engineers (COE) requested that USDA, APHIS, Animal Damage Control (ADC) investigate methods of yellowbelly marmot (Mannota tlaviventris) removal along a parkway and levee system in Lewiston, Idaho. COE biologists determined that burrowing marmots had penetrated and were compromising the integrity of the levee core. In addition to protecting downtown Lewiston from flooding, the levee is used as a popular bicycle and foot path. The Humane Society of the United States (HSUS), and other groups and individuals became involved at meetings held to discuss potential methods of resolving the problem. ADC in cooperation …


Long-Term Trial Of An Inflatable Effigy Scare Device Or Repelling Cormorants From Catfish Ponds, Allen R. Stickley Jr., Junior O. King Oct 1993

Long-Term Trial Of An Inflatable Effigy Scare Device Or Repelling Cormorants From Catfish Ponds, Allen R. Stickley Jr., Junior O. King

Wildlife Damage Management Conference

Growing winter populations of double-crested cormorants (Phalacrocorax auritus) over the past decade have caused serious depredation problems for commercial channel catfish (lctalurus punctatus) growers in the Mississippi Delta (Stickley and Andrews 1989). Stickley et al. (1992) found that cormorants allowed to feed without hindrance took an average of 5 catfish fingerlings per foraging hour, but at times took as many as 28 fingerlings per hour. Obviously, growers have to repel these birds or suffer heavy losses where the cormorants are feeding on catfish fingerlings and not gizzard shad (Dorosoma cepedianum) as they at times …


Breeding Ewe Lambs To Lamb First As Yearlings, Nyle J. Matthews Oct 1993

Breeding Ewe Lambs To Lamb First As Yearlings, Nyle J. Matthews

Archived Agriculture Publications

Getting the highest possible production from ewes is a goal of every sheep producer. Sheep respond well to management and will usually pay a producer for the extra times he spends in caring for them. Breeding ewe lambs is a practice that can pay dividends but requires the right management to make it work. Many years ago this practice was deemed unwise because it severely affected the young mothers in many ways. Modern research has spelled out requirements in terms of size and management that make a successful, workable program.


Utah Science Vol. 54 No. 3, Fall 1993 Oct 1993

Utah Science Vol. 54 No. 3, Fall 1993

Utah Science

66 USU Aids Search for "Common Ground"

67 New Roles for a Contemporary Land Grant University

71 Fees on Public Lands: Not all Users Pay A Fair Share

75 In the Short Term, Grim Prospects for Extractive Industries in Utah

79 Public Lands Often Not the Key to Rural Economic Development

83 Research in Brief

87 Recipient of 1993 Land Grant Hall of Fame Award

88 Panelists Endorse Objectivity as USU Goal

93 Wilderness Designation: Economic Effects Often Depend on Legal Definitions

98 Cattle Displaced from Rangeland May Find a Home on Irrigated Pastures


A Simple Empirical Calibration Of Energy Dispersive X-Ray Analysis (Edxa) On The Cornea, N. F. Schrage, K. Benz, P. Beaujean, W. -G. Burchard, M. Reim Sep 1993

A Simple Empirical Calibration Of Energy Dispersive X-Ray Analysis (Edxa) On The Cornea, N. F. Schrage, K. Benz, P. Beaujean, W. -G. Burchard, M. Reim

Scanning Microscopy

Monitoring of the corneal electrolyte content is important for the study of chemical eye burns. This paper describes quantitative measurements on gelatin standards, corneas and a cornea homogenate with an energy dispersive X-ray analyzer (EDX) in the scanning electron microscope (SEM). Ten micrometers thick cryosections were freeze-dried and mounted on solid carbon supports. The applied quantification procedure was a local peak background analysis with a specifically designed computer program. Similar chemical and physical properties of gelatin, cornea homogenate, and cornea were proven by EDX-analysis and wet chemical analysis. Gelatin standards with known concentrations of different added salts showed linear correlations …


Rabbit And Human Non-Keratinising Stratified Squamous Oesophageal Epithelium Displays Similar Microridge Structure By Scanning Electron Microscopy, S. Shasha'a, G. R. Dickson, R. St. C. Gilmore, G. C. Crean, M. M. Butt, K. E. Carr Sep 1993

Rabbit And Human Non-Keratinising Stratified Squamous Oesophageal Epithelium Displays Similar Microridge Structure By Scanning Electron Microscopy, S. Shasha'a, G. R. Dickson, R. St. C. Gilmore, G. C. Crean, M. M. Butt, K. E. Carr

Scanning Microscopy

Since the oesophageal epithelium of common laboratory animals, rats and mice, is keratinized it is unsuitable for comparison with typical non-keratinized stratified squamous human epithelium. It is thus important to find a suitable animal model for the study of human oesophageal tissue changes. This study investigated the microridge structure of immature and adult rabbit specimens, and adult human biopsies by scanning electron microscopy and morphometry. The investigation revealed a similarity between typical squamous human and adult rabbit oesophageal mucosal epithelium. While human epithelium specimens subdivided into two other groups (non-typical squamous and non-squamous); all typical squamous human biopsies were from …


Elastic Scaling Of Small Structures, Kim Aaron Sep 1993

Elastic Scaling Of Small Structures, Kim Aaron

Small Satellite Conference

As aerospace designers strive to build smaller systems, it is important that they understand scaling laws to take full advantage of the inherent strength of small structures. Simple geometric scaling yields masses that scale in proportion to ℓ3. However, in the process, the stress levels decrease, and the materials are not used to full advantage. Also, the resistance to buckling increases as the length decreases. With "elastic scaling," as the dimension parallel to the predominant load shortens, the dimension normal to the main load is thinned down even faster. This preserves a constant factor of safety with respect to the …


Review Of Planning Distribution Model (Pdm) Status And Application Possibilities For The Egyptian Irigation System, Robert W. Hill, Richard C. Peralta, Gary P. Merkley Sep 1993

Review Of Planning Distribution Model (Pdm) Status And Application Possibilities For The Egyptian Irigation System, Robert W. Hill, Richard C. Peralta, Gary P. Merkley

Civil and Environmental Engineering Faculty Publications

The comprehensive water management Planning Distribution Model, or PDM, was developed by the Biological and Irrigation Engineering Department, Utah State University (USU), under contract with the United States Bureau of Reclamation (USBR). Most of the work was carried out in the Planning Sector, Ministry of Public Works and Water Resources (MPWWR) , in Cairo, under the Planning Studies and Models Component of the USAID funded Irrigation Management Systems Project.


Ascorbic Acid Is An Abettor In Calcium Urolithiasis: An Experimental Study, P. P. Singh, R. Kiran, A. K. Pendse, Reeta Ghosh, S. S. Surana Sep 1993

Ascorbic Acid Is An Abettor In Calcium Urolithiasis: An Experimental Study, P. P. Singh, R. Kiran, A. K. Pendse, Reeta Ghosh, S. S. Surana

Scanning Microscopy

Two sets of animal experiments using guinea pigs were planned to evaluate the effect of ascorbic acid supplementation on the lithogenic process. In the first set of experiments, 10, 40, and 60 mg doses of ascorbic acid/100g body weight/day were given for 105 days. Neither of the ascorbic acid doses given induced crystalluria, calcification or stone formation, thereby confirming our previous findings that ascorbic acid in the doses used by clinicians does not cause urolith formation. In the second set of experiments, ascorbic acid was supplemented in hypercalciuric (induced by calcium carbonate feeding) and hyperoxaluric (induced by sodium oxalate feeding) …


Scanning Electron Microscopy Of Human Esophageal Mucosa In Patients With Carcinoma Of The Esophagus, M. Cwikiel, M. Q. Yang, M. Albertsson, C. -H. Håkansson, M. Palmegren Aug 1993

Scanning Electron Microscopy Of Human Esophageal Mucosa In Patients With Carcinoma Of The Esophagus, M. Cwikiel, M. Q. Yang, M. Albertsson, C. -H. Håkansson, M. Palmegren

Scanning Microscopy

Specimens taken at surgery from 15 patients with carcinoma of the esophagus were examined with scanning electron microscopy. Nine patients were treated with chemotherapy (cisplatin + 5-fluorouracil), surgery and radiotherapy; one received preoperative radiotherapy only; and the remaining five primary surgery only. Scanning electron microscopy was performed on specimens of both tumor tissue and the mucosa at least 5 cm from the tumor. In adjacent non-tumor tissue, damage due to treatment was observed in the form of changes in microridges and increased cell loss. In tumor tissue, the degree of damage was correlated to tumor response to treatment. For patients …