The Experts below are selected from a list of 24 Experts worldwide ranked by ideXlab platform
Peter W. C. Kloppenborg - One of the best experts on this subject based on the ideXlab platform.
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Sudomotor function in human poikilothermia
Neurology, 1995Co-Authors: M.a. Mackenzie, E. Schonbaum, A. R. M. M. Hermus, Hub Wollersheim, Th. Thien, A. G. H. Smals, Peter W. C. KloppenborgAbstract:Hypohidrosis predisposes to hyperthermia and may indicate generalized thermoregulatory failure.To assess the Sweating capacity in human poikilothermia, we performed a quantitative analysis of the central and peripheral sudomotor pathways in four women with acquired poikilothermia (aged 29 to 38 years) and nine controls. Heat challenge in a climatic chamber (ambient temperature 40 degrees C, 50% relative humidity) for 180 minutes revealed that both sweat secretion and evaporative weight loss were significantly lower in the patients than in the controls (p less than 0.01). Temperature thresholds for thermal Sweating were markedly elevated in at least two patients, whereas a third patient showed No Sweating response. Stimulation of the eccrine sweat glands by intradermally injected acetylcholine during reduced core temperature (34.9 plus minus 0.7 degrees C) revealed a significantly reduced Sweating response in all patients (p less than 0.01); the sudomotor response to pilocarpine iontophoresis was reduced or absent in three patients. We conclude that the generalized thermoregulatory sudomotor failure in these patients was attributable primarily to disorders of the central sudomotor drive; the impaired postganglionic sudomotor response is temperature related and possibly secondary to (long-standing) poikilothermia. Quantification of heat-dissipating capacity is pivotal for diagNosing severe thermolability and may help to prevent serious heat illness. NEUROLOGY 1995;45: 1602-1607
S. C. Mojumdar - One of the best experts on this subject based on the ideXlab platform.
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Thermal transport characteristics of polypropylene fiber-based knitted fabrics
Journal of Thermal Analysis and Calorimetry, 2012Co-Authors: P. Lizák, J. Legerska, J. Militký, S. C. MojumdarAbstract:Thermal comfort is condition of an organism, when there is No Sweating and the mean skin temperature is in the range from 32 to 34 °C (Hes, Measurement of comfort, What can textile III, 2009 ). Thermal comfort is closely connected with the following characteristics: thermal resistivity and thermal conductivity. Related properties are: resistance against the penetration of water vapor, air permeability, and porosity. The thermal resistivity R (W^−1 K m^2) and thermal conductivity K (W K^−1 m^−1) of knitted fabrics containing PP fiber were measured. Measurements were realized on three different types of devices. The experimental results were compared with simple mechanistic model for prediction of thermal conductivity K for textile structures.
M.a. Mackenzie - One of the best experts on this subject based on the ideXlab platform.
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Sudomotor function in human poikilothermia
Neurology, 1995Co-Authors: M.a. Mackenzie, E. Schonbaum, A. R. M. M. Hermus, Hub Wollersheim, Th. Thien, A. G. H. Smals, Peter W. C. KloppenborgAbstract:Hypohidrosis predisposes to hyperthermia and may indicate generalized thermoregulatory failure.To assess the Sweating capacity in human poikilothermia, we performed a quantitative analysis of the central and peripheral sudomotor pathways in four women with acquired poikilothermia (aged 29 to 38 years) and nine controls. Heat challenge in a climatic chamber (ambient temperature 40 degrees C, 50% relative humidity) for 180 minutes revealed that both sweat secretion and evaporative weight loss were significantly lower in the patients than in the controls (p less than 0.01). Temperature thresholds for thermal Sweating were markedly elevated in at least two patients, whereas a third patient showed No Sweating response. Stimulation of the eccrine sweat glands by intradermally injected acetylcholine during reduced core temperature (34.9 plus minus 0.7 degrees C) revealed a significantly reduced Sweating response in all patients (p less than 0.01); the sudomotor response to pilocarpine iontophoresis was reduced or absent in three patients. We conclude that the generalized thermoregulatory sudomotor failure in these patients was attributable primarily to disorders of the central sudomotor drive; the impaired postganglionic sudomotor response is temperature related and possibly secondary to (long-standing) poikilothermia. Quantification of heat-dissipating capacity is pivotal for diagNosing severe thermolability and may help to prevent serious heat illness. NEUROLOGY 1995;45: 1602-1607
P. Lizák - One of the best experts on this subject based on the ideXlab platform.
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Thermal transport characteristics of polypropylene fiber-based knitted fabrics
Journal of Thermal Analysis and Calorimetry, 2012Co-Authors: P. Lizák, J. Legerska, J. Militký, S. C. MojumdarAbstract:Thermal comfort is condition of an organism, when there is No Sweating and the mean skin temperature is in the range from 32 to 34 °C (Hes, Measurement of comfort, What can textile III, 2009 ). Thermal comfort is closely connected with the following characteristics: thermal resistivity and thermal conductivity. Related properties are: resistance against the penetration of water vapor, air permeability, and porosity. The thermal resistivity R (W^−1 K m^2) and thermal conductivity K (W K^−1 m^−1) of knitted fabrics containing PP fiber were measured. Measurements were realized on three different types of devices. The experimental results were compared with simple mechanistic model for prediction of thermal conductivity K for textile structures.
Hub Wollersheim - One of the best experts on this subject based on the ideXlab platform.
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Sudomotor function in human poikilothermia
Neurology, 1995Co-Authors: M.a. Mackenzie, E. Schonbaum, A. R. M. M. Hermus, Hub Wollersheim, Th. Thien, A. G. H. Smals, Peter W. C. KloppenborgAbstract:Hypohidrosis predisposes to hyperthermia and may indicate generalized thermoregulatory failure.To assess the Sweating capacity in human poikilothermia, we performed a quantitative analysis of the central and peripheral sudomotor pathways in four women with acquired poikilothermia (aged 29 to 38 years) and nine controls. Heat challenge in a climatic chamber (ambient temperature 40 degrees C, 50% relative humidity) for 180 minutes revealed that both sweat secretion and evaporative weight loss were significantly lower in the patients than in the controls (p less than 0.01). Temperature thresholds for thermal Sweating were markedly elevated in at least two patients, whereas a third patient showed No Sweating response. Stimulation of the eccrine sweat glands by intradermally injected acetylcholine during reduced core temperature (34.9 plus minus 0.7 degrees C) revealed a significantly reduced Sweating response in all patients (p less than 0.01); the sudomotor response to pilocarpine iontophoresis was reduced or absent in three patients. We conclude that the generalized thermoregulatory sudomotor failure in these patients was attributable primarily to disorders of the central sudomotor drive; the impaired postganglionic sudomotor response is temperature related and possibly secondary to (long-standing) poikilothermia. Quantification of heat-dissipating capacity is pivotal for diagNosing severe thermolability and may help to prevent serious heat illness. NEUROLOGY 1995;45: 1602-1607