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Ishag Adam - One of the best experts on this subject based on the ideXlab platform.
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Accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer.
BMC research notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P
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accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer
BMC Research Notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P < 0.001). The mean difference between the two readings (with limits of agreements) was - 0.093 (−0.20; 0.02) °C. In this study, Tympanic membrane thermometry is as reliable and accurate as axillary mercury glass thermometry. Thus, Tympanic thermometry can be used in clinical practice, especially in the emergency setting, where ease of use and speed of obtaining the Temperature reading are important.
Gasim I. Gasim - One of the best experts on this subject based on the ideXlab platform.
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Accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer.
BMC research notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P
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accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer
BMC Research Notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P < 0.001). The mean difference between the two readings (with limits of agreements) was - 0.093 (−0.20; 0.02) °C. In this study, Tympanic membrane thermometry is as reliable and accurate as axillary mercury glass thermometry. Thus, Tympanic thermometry can be used in clinical practice, especially in the emergency setting, where ease of use and speed of obtaining the Temperature reading are important.
Luciano Freitas Felício - One of the best experts on this subject based on the ideXlab platform.
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Zinc Alleviates Lipopolysaccharide Interference with Both Body Temperature and Sickness Behavior in Virgin Female Rats.
Neuroimmunomodulation, 2018Co-Authors: Amanda Fiorentina Nascimento, Shelley Kirychuk, Maria Martha Bernardi, Luciano Freitas FelícioAbstract:Objectives Previous studies from our group showed that lipopolysaccharide (LPS) exposure induces several signs of sickness behavior, including a decrease in food consumption, body weight gain, adipsia, and a biphasic effect in Tympanic Temperature with a first phase of hypothermia, followed by an increased Tympanic Temperature. LPS can activate a chain of nonspecific host responses, including the immune response, and decreased zinc levels. In addition, there are differences in the immune response between males and females, particularly fever, with sex hormones interfering with body Temperature. This study aims to characterize the effects of zinc treatment on Tympanic Temperature, body weight gain, food and water consumption, and general activity in open field of virgin female rats exposed to a dose of LPS that was previously reported to induce sickness behavior. Methods Virgin female Wistar rats were treated with either saline (S) or LPS. One hour later, the S group received another injection of saline (S + S group), half of the LPS group received saline (LPS + S group) and the other half received zinc (LPS + Zn group). Tympanic Temperature, body weight, and water and food consumption were measured for 96 h. Measurements and observations started 2 h after LPS administration. Results Treatment with zinc attenuated LPS-increased Temperature, decreased the body weight gain and food consumption, and water consumption was increased. Conclusion Zinc treatment is beneficial as it reduces the increased Tympanic Temperature induced by LPS, but it does not influence other sickness behavior caused by exposure to LPS.
G. L. Hahn - One of the best experts on this subject based on the ideXlab platform.
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Tympanic Temperature in confined beef cattle exposed to excessive heat load
International Journal of Biometeorology, 2010Co-Authors: T. L. Mader, J. B. Gaughan, L. J. Johnson, G. L. HahnAbstract:Angus crossbred yearling steers ( n = 168) were used to evaluate effects on performance and Tympanic Temperature (TT) of feeding additional potassium and sodium to steers exposed to excessive heat load (maximum daily ambient Temperature exceeded 32°C for three consecutive days) during seasonal summer conditions. Steers were assigned one of four treatments: (1) control; (2) potassium supplemented (diet containing 2.10% KHCO_3); (3) sodium supplemented (diet containing 1.10% NaCl); or (4) potassium and sodium supplemented (diet containing 2.10% KHCO_3 and 1.10% NaCl). Overall, additional KHCO_3 at the 2% level or NaCl at the 1% level did not improve performance or heat stress tolerance with these diet formulations. However, the addition of KHCO_3 did enhance water intake. Independent of treatment effects, TT of cattle displaying high, moderate, or low levels of stress suggest that cattle that do not adequately cool down at night are prone to achieving greater body Temperatures during a subsequent hot day. Cattle that are prone to get hot but can cool at night can keep average Tympanic Temperatures at or near those of cattle that tend to consistently maintain lower peak and mean body Temperatures. In addition, during cooler and moderately hot periods, cattle change TT in a stair-step or incremental pattern, while under hot conditions, average TT of group-fed cattle moves in conjunction with ambient conditions, indicating that thermoregulatory mechanisms are at or near maximum physiological capacity.
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Tympanic Temperature Decay Constants as Indices of Thermal Environments: Swine
Transactions of the ASAE, 1995Co-Authors: Roger A. Eigenberg, G. L. Hahn, John A. Nienaber, A. M. Parkhurst, M. F. KocherAbstract:A method of estimating the overall heat transfer coefficient of animals based on Tympanic Temperature transient analysis was developed and tested using swine. The decay characteristics of a Tympanic Temperature spike were determined for three test environments—28° C with a low airspeed, 28° C with a high airspeed, and 18° C with low airspeed. Each suitable Temperature spike was processed by a statistical curve-fitting algorithm to generate the heat transfer coefficient, K, as an integrated thermal index of the energy exchanges between the animal and its environment. Analyses showed that the thermal index for an environment of 28° C with a low airspeed was significantly different (P < 0.026) from the other two treatments, thus indicating the validity of the thermal index. The thermal index, which reflects the physiologic response of the animal to its thermal environment, provides a measure of the physical heat transfer characteristics of the animal.
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Measurements and Spectral Analysis of Tympanic Temperature Regulation in Swine
Transactions of the ASAE, 1995Co-Authors: R. L. Korthals, G. L. Hahn, Roger A. Eigenberg, John A. NienaberAbstract:Thermoregulation in farm animals is directly related to performance, efficiency, health, and well being. Tympanic Temperature serves as a measure of thermoregulatory responses to environmental conditions. Tympanic Temperature was measured as a basis for characterizing thermoregulatory responses of swine. Fourier spectral analysis and short-time Fourier transforms (STFT) were applied to the Tympanic time series record and used to determine sampling rate guidelines and to evaluate thermoregulatory responses of ad-libitum-fed, growing swine subjected to alternating constant Temperatures from 21° to 30° C thermal environments. Analysis of data from three swine suggests sampling rates of 1 sample every 8 to 10 min, although a faster rate of one sample every 2 to 3 min was recommended to allow for digital filtering. STFT analysis indicated that even in constant environmental Temperatures, the amplitude of the diurnal Tympanic Temperature cycle increased under elevated ambient Temperature. The amplitude of all Tympanic Temperature cycles also increased following transitions between different ambient Temperature conditions.
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Comparison of Calf Housing Types and Tympanic Temperature Rhythms in Holstein Calves
Journal of dairy science, 1995Co-Authors: A.s. Macaulay, G. L. Hahn, D.h. Clark, D.v. SissonAbstract:During fall, 30 Holstein calves were randomly assigned to three housing treatments from birth to weaning: conventional wooden hutches, enclosed molded polyethylene domes, and thermomolded opaque polymer hutches with ridge-top ventilation systems. The wooden and polymer hutches had outdoor pens. Fifteen calves, 5 in each housing type, were fitted with portable data loggers to record ambient (calf microclimate) and Tympanic Temperatures. Additional data collected included weekly girth, BW, and feed intake; blood samples were collected within 24 h of birth and at weaning (8 wk); and behavioral observations were made at 1, 4, and 7 wk of age. Polyethylene domes had the warmest microclimate, followed by wooden and polymer hutches. Feed intake, growth measurements, blood physiology, and behavior were unaffected by housing type. Diurnal Tympanic Temperature rhythms of neonatal dairy calves in this study were monophasic: maximums were at 1200 to 1700 h, and minimums were at 0600 to 0900 h. Computed fractal dimensions of Tympanic Temperature by week indicated a gradual diminishing of stress as the calves became older and acclimated to their environment. This objective characterization provides a basis for further evaluation of physiological stress and a means of improving environmental management.
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Characterizing animal stress through fractal analysis of thermoregulatory responses
Journal of Thermal Biology, 1992Co-Authors: G. L. Hahn, Y.r. Chen, John A. Nienaber, Roger A. Eigenberg, A. M. ParkhurstAbstract:Abstract Thermoregulatory responses, based on non-invasive Tympanic Temperature measures, are a logical energetically-based alternative to endocrine or other measures for objectively characterizing stress. Tympanic Temperature datasets obtained from growing, ad-libitum -fed cattle ( Bas taurus steers) were used to compute the fractal dimension for thermoregulatory responses to a non-stressing and several heat-stressing conditions. Within defined limitations for sampling interval frequency, results showed clear differentiation among responses to the imposed environments by individual animals. Objective characterization of stress was attained and a threshold limit for stress defined using the technique.
Imad R. Musa - One of the best experts on this subject based on the ideXlab platform.
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Accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer.
BMC research notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P
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accuracy of Tympanic Temperature measurement using an infrared Tympanic membrane thermometer
BMC Research Notes, 2013Co-Authors: Gasim I. Gasim, Imad R. Musa, Mohamed T Abdien, Ishag AdamAbstract:During investigation and diagnosis of patients, accurate Temperature measurement is of great importance. The advantages of Tympanic membrane thermometry are speed (Temperature reading available within seconds), safety, and ease of use. The aim of this study was to compare the accuracy of infrared Tympanic thermometers in comparison to mercury thermometers in measurement of body Temperature. Axillary and Tympanic Temperature was measured simultaneously in consecutive patients using mercury glass and infrared Tympanic thermometers at Omdurman Hospital, Sudan during October 2012. In total, Temperature was measured in 174 patients, 95 of whom (54.6%) were male. The mean (SD) patient age and weight was 33.18 (25.07) years and 52.13 (69.85) kg. There was no significant difference in mean (SD) Temperature measurement between mercury and infrared Tympanic membrane thermometers, 37.29°C (0.91) versus 37.38°C (0.95), P = 0.373, respectively. There was a significant positive correlation between axillary and Tympanic body Temperature measurements (r = 0.697, P < 0.001). The mean difference between the two readings (with limits of agreements) was - 0.093 (−0.20; 0.02) °C. In this study, Tympanic membrane thermometry is as reliable and accurate as axillary mercury glass thermometry. Thus, Tympanic thermometry can be used in clinical practice, especially in the emergency setting, where ease of use and speed of obtaining the Temperature reading are important.
