Publications by authors named "A Gatrell"
Article Synopsis
- Doppler ultrasound (DU) is used to detect venous gas emboli (VGE) after diving, but existing automated methods for assessment have limitations due to small datasets and lack of objective evaluation.
- The authors developed a method to create synthetic DU data based on real signals, allowing variability in bubbling to match established grading systems.
- This work includes baseline recordings and code for synthetic data generation, aiming to advance research in VGE analysis and improve signal processing methodologies.
Objective: Doppler ultrasound (DU) is used to detect venous gas emboli (VGE) post dive as a marker of decompression stress for diving physiology research as well as new decompression procedure validation to minimize decompression sickness risk. In this article, we propose the first deep learning model for VGE grading in DU audio recordings.
Methods: A database of real-world data was assembled and labeled for the purpose of developing the algorithm, totaling 274 recordings comprising both subclavian and precordial measurements.
Article Synopsis
- Rebreathers are devices that allow divers to recycle exhaled gas, helping them stay underwater longer with less equipment, but they can fail, leading to dangerous conditions like hypoxia.
- This study aimed to see if pulse oximeters could give divers advance warning of low oxygen levels when the oxygen system in rebreathers fails.
- Results showed that pulse oximeters placed on the forehead and nasal ala provided about 32 seconds of warning before the risk of unconsciousness, suggesting they could serve as a useful safety feature for divers using rebreathers.
Objective: Little is known about caregiver attitudes and perceptions towards snacking by toddlers and preschool children outside of the U.S. This qualitative study examined caregiver attitudes and perceptions towards the provision of both foods and beverages in-between meals, along with what constitutes a snack, or snacking occasion, amongst Swiss caregivers.
View Article and Find Full Text PDFThere is now an extensive literature on therapeutic landscapes, those settings and places that can contribute to wellbeing and good health. Less attention has been paid to the therapeutic qualities of the act of moving from one place to another. The recent emergence of a significant mobilities 'turn' in social science is welcome, but this has as yet had relatively little to say about the consequences of mobility for health and wellbeing.
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