The Effect of Ambient Temperature on Restraint Ulcer in the Rat

Martin, M.S.; Martin, Frances L.; R, Lambert

doi:10.1159/000197053

Cited by 12 publications

(2 citation statements)

References 10 publications

(12 reference statements)

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“…CCT in the rat results in a preganglionic sympathectomy and poikilothermia (24,(32)(33)(34). The present study was designed to examine core body temperature and fluid volume as independent effectors of gastric ulcerogenesis after CCT in the rat.…”

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confidence: 99%

Temperature and Vascular Volume Effects on Gastric Ulcerogenesis After Cord Transection

Strain

Waldrop

2005

Dig Dis Sci

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Gastric ulcers are an important cause of morbidity and mortality in the critically ill, especially those with CNS injury. We used cervical spinal cord transection (CCT) in the rat to model these ulcers and examined the effect of core body temperature and vascular volume on gastric ulcerogenesis. Hypothermia significantly increased ulcerogenesis compared to euthermia, while maintained euthermia produced ulcer indices not different from sham surgery. Hypovolemia (10% blood volume withdrawal) significantly increased ulcerogenesis compared to hypervolemia (10% of blood volume crystalloid infusion) or sham surgery. These results support crystalloid infusion and maintenance of core body temperature in the clinical setting.

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mentioning

confidence: 99%

Temperature and Vascular Volume Effects on Gastric Ulcerogenesis After Cord Transection

Strain

Waldrop

2005

Dig Dis Sci

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“…Currently, these systems can be implemented under a fixed or "closed-form" solution, meaning that no changes in the electroacoustical chain can be accounted for. Thus, they are highly sensitive to all kinds of variations such as room temperature [4], loudspeaker non-linearities [5], position of objects and even more, listener movement. In addition, the emerging Internet of Sounds allows to set a wireless acoustical sensor network (WASN) to assist with the sound field control.…”

Section: Introductionmentioning

confidence: 99%

Performance of Low Frequency Sound Zones Based on Truncated Room Impulse Responses

et al. 2022

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Using spatially distributed loudspeakers and properly designed control filters, it is possible to generate sound zones that play different audio contents in different regions of the same room. For low frequency content, the design of control filters relies on the room impulse responses (RIRs) between each loudspeaker and the desired listening positions. Estimates of the RIRs can be obtained by distributing wireless microphones within the sound zones and thereby systematically acquiring sufficient knowledge about the acoustical characteristics of the room and loudspeakers. Longer acquisition times would generally lead to better estimates of the RIRs but would also introduce processing delays, which is undesirable in cases where time-varying RIRs are to be compensated. In addition, shorter RIRs may imply lower computational complexity.In this work, control filters were calculated using truncated versions of the RIRs in order to simulate the effect of a reduced acquisition time. The performance was evaluated in terms of the acoustic contrast ratio (ACR) and it was seen that within a certain limit, doubling the acquisition time increases the ACR around 4 dB or more. Moreover, to keep the sound pressure low in the dark zone, only a limited part of the reverberation tail is required.

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