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In recent years a number of serious accidents due to human errors have occurred in public transportation. Preventative safety technology is therefore the most urgent issue, and human monitoring technique becomes the centre of attention. Physiological responses to external stimuli have been vigorously investigated and physiological indices such as 'eheart rate variability' were established to estimate...
Biopotential measurements with capacitive electrodes do not need any direct contact between electrode and skin, which saves the time devoted to expose and prepare the contact area when measuring with conductive electrodes. However, mechanical vibrations resulting from physiological functions such as respiration and cardiac contraction can change the capacitance of the electrode and affect the recordings...
Clinical scales represent the golden standard in characterizing awareness for patients in vegetative or in a minimally conscious state. Clinical scales suffer from problems of sensitivity, specificity, subjectivity, and inter-rater reliability. This leads to a misdiagnosis rate of up to 40% and consequences associated with inappropriate treatment decisions. In this study, objective measures including...
We developed and tested the Berkeley Tricorder, a health monitoring device capable of measuring a subject's ECG, EMG, Blood Oxygenation, Respiration (via Bioimpedance), and motion--almost equivalent to the feature set of a hospital bedside patient monitor. Our focus has been a highly integrated design incorporating the radio and all associated circuitry on a single PCB. The device stores data locally...
Abdominal surface recordings of the electroenterogram (EEnG) could be a noninvasive solution to study the intestinal motility. However, surface EEnG is a weak signal (muV) sensitive to physiological interferences such as ECG and respiration. The goal of this work has been to develop a modular Laplacian sensor to enhance the quality of conventional bipolar recordings. This sensor is made up by two...
The European Space Agency (ESA) commissioned CSEM to design, build, validate and deliver one fully operational ground prototype of a system (LTMS2) measuring physiological parameters. The system was shipped and will be used during 2008 at Concordia station (www.concordiastation.com) in Antarctica to study the physiological adaptation of crews to remote, isolated and extreme environments. The underlying...
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