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Effects of High Intensity Radiant Energy on Skin: [Part] 1. Type of Energy and Its Relation to Energy Delivery Rate

Description: Abstract: Burn lesions were produced by radiant energy, 3100 A to 22000 A, on depilated rat skin. The gross and microscopic pathological changes so caused are described and correlated with the amounts of incident energy and the rate of energy delivery. Within the limits studied, 0.2 to 64 cal./cm.2/sec. and 0.1 to 8.0 seconds, it was found that increasing the rate of energy delivery lowered the amount of energy required to produce a specified degree of tissue injury. The tissue changes were in many respects similar to those described for contact burns of the skin of rats and other animals. The findings suggest the action of such intensities of this spectrum of radiant energy is essentially of a thermal nature.
Date: March 17, 1952
Creator: Sheline, Glenn E.; Alpen, Edward L.; Kuhl, P. R. & Ahokas, A.
Partner: UNT Libraries Government Documents Department

Self-inflicted and other-inflicted intentional burns versus unintentional burns: A comparison study.

Description: Burn injuries are associated with significant mortality and morbidity. Intentional burn injuries are not well understood, and warrant study to improve adjustment and outcomes. The present study examined group differences between intentional and unintentional burn injuries, comparing individuals with self-inflicted (SIB; n=109) and other-inflicted (OIB; n=109) burns to an unintentional burn (UB) group. Compared to UB, those with intentional (SIB, OIB) burn injuries were more likely to be young, female, unmarried, unemployed, abuse substances, and have positive alcohol/drug screens at hospital admission. Individuals with intentional burns report more psychological distress, lower quality of life in some areas, and lower life satisfaction. When SIB and OIB were examined individually, OIB were more likely to be African American compared to SIB and UB. OIB also had more anxiety and paranoia than UB. SIB was more likely than OIB and UB to have had medical problems or psychiatric disorders and treatment prior to the burn injury. Those with SIB were 3 times more likely than UB to die in the hospital even after controlling for age, severity of burn, and inhalation injuries. Moreover, the SIB group had high rates of suicidal ideation at discharge and follow-up. Treatment implications for burn treatment providers were discussed.
Date: August 2008
Creator: Ranucci, Melissa B.
Partner: UNT Libraries

STUDIES ON LARGE AREA SUB-FABRIC BURNS

Description: The detonation of shot one at Bikini Atoll on March 1, 1954, produced a fallout of radioactive ash upon Rongelap Atoll, Marshall Islands. The distribution of the radioactive ash on the islands and in the plants and animals of the area has been studied and evaluated. During the first expedition to Rongelap Atoll on March 26, 1954, biological samples were collected and measurements made of the radiation contamination. On three additional expeditions extensive collections of material were made for this study, the last on January 25-30, 1955. The decline in radioactivity was measured in 1499 samples of fish, invertebrates, land plants, algae, birds, plankton, soil, and water from the Rongelap area. During this study particular emphasis was placed upon evaluation of the radioactivity in food used by the natives. Coconut milk collected on March 26, 1954, contained 1.03 microcuries per kilogram of wet tissue while the coconut meat had 1.16 mu c/kg. By January 25-30, 1955, the level in coconut milk had declined to 0.041 mu c/kg and the meat to 0.036 mu c/ kg. Fish muscle on March 26, 1954, averaged 2.74 mu c/kg and fish liver 204.0 mu c/kg. The decline to January 25-30 was 0.10 mu c/kg for the muscle and 3.52 mu c/kg for the liver of fish. Somewhat similar declines were found for clam muscle, crab muscle, bird muscle and liver, and for squash, papaya, arrowroot and pandanus. The level of radioactivity was highest in the northern portion of the atoll, except for samples of algae and fish-eating birds, collected during January 1955 from the southern part of the atoll, which had higher levels of radioactivity than samples collected from the northern islands on the same date. This may indicate a translocation of radioactive materials within the lagoon. (auth)
Date: July 5, 1957
Creator: Berkley, K.M. & Pearse, H.E.
Partner: UNT Libraries Government Documents Department

Studies of the status of antioxidant enzymes and metabolites following burn injury, and the presence of antioxidant enzymes in the Aloe vera plant

Description: The effects of skin burn injury on the levels of oxidized and reduced glutthione, malondialdehyde, and on the activities of glutathione peroxidase, glutathione S-transferase, and glutathione reductase were determined in liver and lung of rabbit models, 24-h post-burn.
Date: December 1995
Creator: Sabeh, Farideh
Partner: UNT Libraries

Burns Harbor, Indiana, Monitoring Study, Volume 1: Overview of Approach and Results

Description: From introduction: The program's objective is to acquire information through intensive monitoring of coastal projects in an effort to improve project purpose and attainment, design procedures, construction methods, and operation and maintenance techniques.
Date: March 1997
Creator: McGehee, David D.; Prickett, Terri; Shirley, Janean & Moritz, Heidi
Partner: UNT Libraries Government Documents Department

Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona

Description: From abstract: At the request of the U.S. Bureau of Land Management, approximately 19,300 acres of the Black Mountains North Wilderness Study Area (AZ-020-009) and 23,310 acres of the Burns Spring Wilderness Study Area (AZ-020-010) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to, collectively or individually, as the 'wilderness study area' or simply 'the study area'; any reference to the Black Mountains North or Burns Spring Wilderness Study Areas refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The study area is located in western Arizona, about 30 mi northwest of Kingman. There are no identified resources in the study area.
Date: 1990
Creator: Conrad, James E.; Hill, Randall H.; Jachens, Robert C. & Neubert, John T.
Partner: UNT Libraries Government Documents Department

[David Burns shooting a basketball]

Description: Photograph of David Burns, a North Texas State University basketball player. In this image, Burns is standing in front of folded gym bleachers as he shoots a basketball. The gym balcony and windows are visible behind Burns.
Date: November 14, 1962
Partner: UNT Libraries Special Collections

FURTHER STUDIES ON THE RELATIONSHIP BETWEEN EXPOSURE TIME AND DEPTH OF DAMAGE OF MODERATE AND SEVERE CUTANEOUS BURNS

Description: To extend our earlier studies on the relationship between exposure time and depth of damage of moderate and severe burns, injuries were produced by each of six radiant exposures delivered during varying exposure times. The exposures investigated were: 5, 8, 10, 13, 16, and 20 calories per square centimeter. Within this range, as the radiant exposure increased, the exposure time for the production of maximum damage also increased. Injury from a given radiant exposure was less with exposure times either longer or shorter than some immediate time which led to the most severe injury. The relationship between steam bleb formation and decreased depth of injury from short exposure times is pointed out. When the superficial layers of the skin become so hot that vaporization of tissue fluid occurs, energy which might otherwise damage the deep layers is diverted by the conversion of water to steam. For radiant exposures between 8 cal/cm/sup 2/ and 20 cal/cm/sup 2/ delivered with a square pulse, it is possible to predict with fair accuracy the exposure time which will result in the deepest burn. (auth)
Date: October 31, 1957
Creator: Payne, F.W. & Hinshaw, J.R.
Partner: UNT Libraries Government Documents Department

[Walking home by lantern light]

Description: Photograph of Cecil Ray with his arm around a Bonnie Burns as they walk along a gravel path. Burns carries a gas lamp while the Cecil Ray carries a small pail of sorghum molasses while they both laugh and smile.
Date: 194u
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

Burn Depth Estimation Based on Infrared Imaging of Thermally Excited Tissue

Description: Accurate estimation of the depth of partial-thickness burns and the early prediction of a need for surgical intervention are difficult. A non-invasive technique utilizing the difference in thermal relaxation time between burned and normal skin may be useful in this regard. In practice, a thermal camera would record the skin's response to heating or cooling by a small amount-roughly 5 C for a short duration. The thermal stimulus would be provided by a heat lamp, hot or cold air, or other means. Processing of the thermal transients would reveal areas that returned to equilibrium at different rates, which should correspond to different burn depths. In deeper thickness burns, the outside layer of skin is further removed from the constant-temperature region maintained through blood flow. Deeper thickness areas should thus return to equilibrium more slowly than other areas. Since the technique only records changes in the skin's temperature, it is not sensitive to room temperature, the burn's location, or the state of the patient. Preliminary results are presented for analysis of a simulated burn, formed by applying a patch of biosynthetic wound dressing on top of normal skin tissue.
Date: March 5, 1999
Creator: Dickey, F.M.; Hoswade, S.C. & Yee, M.L.
Partner: UNT Libraries Government Documents Department