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葉子, 佐藤; 学, 一ノ渡; 大, 水野; 剛, 若林; 健二, 鈴木; 成大, 佐藤

doi:10.4058/jsei.25.211

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Several studies have been reported using chemical concentrations in blood and feces as quantitative stress indicators. [9][10][11] The biological response to stress is known to include catecholamine secretion and associated glucocorticoid secretion. 11,12) The chemical assessment of blood and feces is not real-time because it requires time for analysis.…”

Section: Introductionmentioning

confidence: 99%

Non-wearable pulse rate measurement system using laser Doppler flowmetry with algorithm to eliminate body motion artifacts for masked palm civet (Parguma larvata) during husbandry training

Hiejima

Nogami

Saito

et al. 2023

Jpn. J. Appl. Phys.

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Husbandry training (HT) shapes specific actions of animals to facilitate healthcare. The challenge of HT is that the learning of the specific actions requires zoo-keepers to grasp the stress states. Here we suggest non-wearable pulse rate measurement system, as pulse rate indicates stress state. The system uses laser Doppler flowmetry (LDF) with an algorithm to eliminate body motion artifacts. In the algorithm, the cutoff frequency is an important parameter. For the masked palm civet (Parguma larvata) during HT, sensor signal was recorded. We applied 100 Hz, 12 kHz, and 15 kHz cutoff frequencies to the same sensor signal and calculated blood flow signals. When pulse waveforms were confirmed, blood flow signals of 100 Hz and 12 kHz indicate a strong peak at 3.2 Hz (192 beats/min) in the frequency analysis. When pulse waveforms were disturbed, blood flow signal of 15 kHz indicates the strong peak at 3.1 Hz (186 beats/min).

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Section: Introductionmentioning

confidence: 99%

Non-wearable pulse rate measurement system using laser Doppler flowmetry with algorithm to eliminate body motion artifacts for masked palm civet (Parguma larvata) during husbandry training

Hiejima

Nogami

Saito

et al. 2023

Jpn. J. Appl. Phys.

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A Study of the Bacterial Reduction Effects of Dry Hand Rubbing Without Disinfectant

Hira

Ogawa

Ishii

et al. 2014

J UOEH

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Handwashing is the most basic method of preventing infection. Hand rubbing with an alcohol-based handrub, is the most efficient and popular method. We found in several case studies that 3 minutes of dry hand rubbing without any disinfectant decreases the number of hand bacteria. In this study of 54 samples taken from 47 test subjects, we tried to determine how effectively this method decreases hand bacterial numbers. Except for 12 samples that were indeterminate, the number of hand bacteria in 36 (85.7%) out of 42 samples decreased. The average rate of decrease was 49.4% and the maximum rate was 98.3%. Although the most effective duration of dry hand rubbing varied among individuals, we estimated that 2 minutes is optimal. As dry hand rubbing without disinfectants decreases hand bacteria, we suggest that it can be an effective alternate method in emergency situations when water, soap or disinfectants are unavailable.

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Cited by 2 publications

References 3 publications

Non-wearable pulse rate measurement system using laser Doppler flowmetry with algorithm to eliminate body motion artifacts for masked palm civet (Parguma larvata) during husbandry training

Non-wearable pulse rate measurement system using laser Doppler flowmetry with algorithm to eliminate body motion artifacts for masked palm civet (Parguma larvata) during husbandry training

A Study of the Bacterial Reduction Effects of Dry Hand Rubbing Without Disinfectant

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