FaceBit

Author(s):  
Alexander Curtiss ◽  
Blaine Rothrock ◽  
Abu Bakar ◽  
Nivedita Arora ◽  
Jason Huang ◽  
...  

The COVID-19 pandemic has dramatically increased the use of face masks across the world. Aside from physical distancing, they are among the most effective protection for healthcare workers and the general population. Face masks are passive devices, however, and cannot alert the user in case of improper fit or mask degradation. Additionally, face masks are optimally positioned to give unique insight into some personal health metrics. Recognizing this limitation and opportunity, we present FaceBit: an open-source research platform for smart face mask applications. FaceBit's design was informed by needfinding studies with a cohort of health professionals. Small and easily secured into any face mask, FaceBit is accompanied by a mobile application that provides a user interface and facilitates research. It monitors heart rate without skin contact via ballistocardiography, respiration rate via temperature changes, and mask-fit and wear time from pressure signals, all on-device with an energy-efficient runtime system. FaceBit can harvest energy from breathing, motion, or sunlight to supplement its tiny primary cell battery that alone delivers a battery lifetime of 11 days or more. FaceBit empowers the mobile computing community to jumpstart research in smart face mask sensing and inference, and provides a sustainable, convenient form factor for health management, applicable to COVID-19 frontline workers and beyond.

2020 ◽  
Author(s):  
Charlotte Coosje Tanis ◽  
Nina Leach ◽  
Sandra Jeanette Geiger ◽  
Floor H Nauta ◽  
Fabian Dablander ◽  
...  

In the absence of a vaccine, social distancing behaviour is pivotal to mitigate COVID-19 virus spread. In this large-scale behavioural experiment, we gathered data during Smart Distance Lab: The Art Fair (n = 787) between August 28 and 30, 2020 in Amsterdam, the Netherlands. We varied walking directions (bidirectional, unidirectional, and no directions) and supplementary interventions (face mask and buzzer to alert visitors of 1.5 metres distance). We captured visitors' movements using cameras, registered their contacts (defined as within 1.5 metres) using wearable sensors, and assessed their attitudes toward COVID-19 as well as their experience during the event using questionnaires. We also registered environmental measures (e.g., humidity). In this paper, we describe this unprecedented, multi-modal experimental data set on social distancing, including psychological, behavioural, and environmental measures. The data set is available on Figshare and in a MySQL database. It can be used to gain insight into (attitudes toward) behavioural interventions promoting social distancing, to calibrate pedestrian models, and to inform new studies on behavioural interventions.


Author(s):  
Sumate Permwonguswa ◽  
Dobin Yim

The healthcare system is focusing more on patient empowerment leading to patients with active health management. In this process, although some mechanisms exist, there is a need for patient empowerment to move to a new realm where the empowerment process is activated remotely from the patient's side. With the increasing importance of Internet and e-health, it is believed that patient empowerment can be facilitated in the online setting and can be more effective than traditional face-to-face setting. Facilitating patient empowerment online also paves way to data analytics as various online activities can be tracked and the emerging analytic techniques can be utilized to gain insight into the data. This chapter provides knowledge on patient empowerment, data analytics, and their relationship including the role of patient empowerment in data analytics.


2008 ◽  
Author(s):  
Guillermo Varela ◽  
Joshua Whitley ◽  
Daniel Cox ◽  
Tom Roy

Measurement methods to obtain process models from the ovens to a specific type of aerospace wire are described to model the manufacturing process of the wire. Study and measurement of the heat transfer of the system enables observation and insight into the temperature changes of the wire as it goes through a set of temperature controlled ovens. Different measurement techniques are used to obtain temperature data in order to model the heat transfer for the production of the wire. The measurement techniques include oven mapping, cooling curves, and dimension analysis. This data is used to for model procedures to create a relationship between oven temperature and wire processing temperature.


2012 ◽  
Vol 5 (10) ◽  
pp. 614-619
Author(s):  
Arijit Ray-Chaudhuri ◽  
Ryan C. Olley ◽  
Rupert S. Austin ◽  
Jennifer E. Gallagher

As the UK population ages and older people retain their natural teeth for longer, the complexity of the oral health needs in older people is becoming more challenging. Older patients are often registered with a GP and will increasingly be likely to require dental care. Older people in particular may benefit from dental care but may not have a dentist or perceive any risk of oral disease. This article therefore provides practical insight into the oral health management of older people to assist in addressing their oral health needs.


Author(s):  
M. Abé ◽  
T. Igusa

Abstract A semi-active dynamic vibration absorber is proposed for controlling the free-vibration impulse response of structures. It is assumed that (i) the initial displacement for the absorber spring can be set to non-zero values and (ii) the viscous damping coefficient for the absorber damping can be adjusted. The theory is first developed for a single-degree-of-freedom structure, and is then generalized to continuous structures. The extensive use of closed-form analytical results provides useful insight into the complex interaction between the structure and absorber. This makes it possible to solve the design problem without recourse to numerical optimization. The semi-active vibration absorber is found to be far more effective than conventional passive devices.


2012 ◽  
Vol 8 (5) ◽  
pp. 864-867 ◽  
Author(s):  
Amanda C. Hahn ◽  
Ross D. Whitehead ◽  
Marion Albrecht ◽  
Carmen E. Lefevre ◽  
David I. Perrett

Previous studies using thermal imaging have suggested that face and body temperature increase during periods of sexual arousal. Additionally, facial skin temperature changes are associated with other forms of emotional arousal, including fear and stress. This study investigated whether interpersonal social contact can elicit facial temperature changes. Study 1: infrared images were taken during a standardized interaction with a same- and opposite-sex experimenter using skin contact in a number of potentially high–intimate (face and chest) and low–intimate (arm and palm) locations. Facial skin temperatures significantly increased from baseline during the face and chest contact, and these temperature shifts were larger when contact was made by an opposite-sex experimenter. Study 2: the topography of facial temperature change was investigated in five regions: forehead, periorbital, nose, mouth and cheeks. Increased temperature in the periorbital, nose and mouth regions predicted overall facial temperature shifts to social contact. Our findings demonstrate skin temperature changes are a sensitive index of arousal during interpersonal interactions.


2021 ◽  
Vol 8 ◽  
Author(s):  
Han-Joo Lee ◽  
Esteban Guerra-Bravo ◽  
Arturo Baltazar ◽  
Kenneth J. Loh

Soft actuation through droplet evaporation has significantly improved the actuation speed of methods that utilize liquid vaporization. Instead of boiling bulk liquid, this method implements atomization to disperse small droplets into a heater. Due to the large surface area of the droplets, the liquid evaporates much faster even at small temperature changes. However, further analysis is required to maximize the performance of this complex multi-physics method. This study was conducted to provide further insight into the atomizer and how it affects actuation. Numerical simulations were used to inspect the vibration modes and determine how frequency and voltage affect the atomization process. These results were used to experimentally control the atomizer, and the droplet growth on the heater surface was analyzed to study the evaporation process. A cuboid structure was inflated with the actuator to demonstrate its performance. The results show that simply maximizing the atomization rate creates large droplets on the surface of the heater, which slows down the vaporization process. Thus, an optimal atomization rate should be determined for ideal performance.


2000 ◽  
Vol 16 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Elizabeth K. Gregory

This article is part of a larger study of young students with asthma. It focuses on the observations of school nurses and comments from parents and students pertinent to school nursing practice. The study shed light on the educational needs of 9- to 11-year-old students with asthma and identified some areas where the school nurse could easily enhance the health management of these students. Responses from students and parents about asthma provided insight into the daily challenges faced by students with asthma. Students with asthma may or may not fully understand the seriousness of their chronic condition or how to recognize and treat symptoms. The purpose of this pilot study was to identify strategies school nurses might use to determine the knowledge level of students and to determine the effects of asthma education programs. School nurses who participated in the study were provided with a comprehensive package containing current asthma information and an education program to update knowledge and skills. These school nurses also received Open Airways for Schools, an American Lung Association education program for students in grades three to five. The study was a two-group exploratory, quasi-experimental design. Questionnaires were prepared for students, school nurses, and parents to collect information on knowledge and perceptions about asthma. Students who participated in the educational program were reported by their school nurses to have increased knowledge and management skills related to their disease.


2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Charlotte C. Tanis ◽  
Nina M. Leach ◽  
Sandra J. Geiger ◽  
Floor H. Nauta ◽  
Fabian Dablander ◽  
...  

AbstractIn the absence of a vaccine, social distancing behaviour is pivotal to mitigate COVID-19 virus spread. In this large-scale behavioural experiment, we gathered data during Smart Distance Lab: The Art Fair (n = 839) between August 28 and 30, 2020 in Amsterdam, the Netherlands. We varied walking directions (bidirectional, unidirectional, and no directions) and supplementary interventions (face mask and buzzer to alert visitors of 1.5 metres distance). We captured visitors’ movements using cameras, registered their contacts (defined as within 1.5 metres) using wearable sensors, and assessed their attitudes toward COVID-19 as well as their experience during the event using questionnaires. We also registered environmental measures (e.g., humidity). In this paper, we describe this unprecedented, multi-modal experimental data set on social distancing, including psychological, behavioural, and environmental measures. The data set is available on figshare and in a MySQL database. It can be used to gain insight into (attitudes toward) behavioural interventions promoting social distancing, to calibrate pedestrian models, and to inform new studies on behavioural interventions.


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