Owlet

2021 ◽  
Vol 25 (2) ◽  
pp. 14-20
Author(s):  
Nirupam Roy
Keyword(s):  
Form Factor ◽  
Ubiquitous Computing ◽  
Disaster Management ◽  
Vital Signs ◽  
Low Frequency ◽  
Pivotal Role ◽  
Time And Space ◽  
Power Requirement ◽  
Alternative Design ◽  
Constrained Devices

Miniaturization is an inherent trend in ubiquitous computing. Insect-scale robots add new capabilities to disaster management, tiny headphones are emerging as complete computing devices, and small wearable health monitors can track vital signs around the clock. Advancements in sensing technologies play a pivotal role in this development. Spatial sensing at this form factor, however, is a skill yet to be mastered, particularly at low-frequency signals like audible sounds. Traditionally, spatial sensing requires sampling in both time and space using an array of microphones, which comes with a strict size requirement and multiplies its power requirement. In this article, we explore the possibility of an alternative design for spatial sensing for miniaturized and power-constrained devices.

scholarly journals Low Power AVLS-TSPC based 2/3 Pre-Scaler

2019 ◽  
Vol 9 (1) ◽  
pp. 6687-6693
Keyword(s):  
Low Power ◽  
High Efficiency ◽  
Supply Voltage ◽  
Low Frequency ◽  
Cmos Technology ◽  
Frequency Signal ◽  
High Frequency Signal ◽  
Power Requirement ◽  
Fast Pace ◽  
Integer Division

The technology has grown at an ultra-fast pace along with the world. Small devices with less power and high efficiency are in demand. As the circuit size gets smaller, the power requirement increases due to a greater number of transistors. A pre-scaler is a circuit which reduces the high frequency signal to a low frequency signal by integer division. A new approach to low power pre-scaler is proposed in this paper, which is an add-on to the conventional pre-scaler circuit. A true single-phase clock (TSPC) circuit reduces the skew problems in the clock and is used to realize latches and flip-flops. The objective of low power is fulfilled by incorporating the Adaptive Voltage Level Source (AVLS) to TSPC based circuit. The proposed AVLS-TSPC based pre-scaler was analyzed for a frequency of 10 MHz with a supply voltage of 1.8 V for both divide by 2 and 3 modes. The proposed pre-scaler consumes considerably lesser power when compared to that of the existing pre-scaler circuit. The circuits are implemented in 180 nm CMOS technology using Cadence Virtuoso and simulated using Cadence Spectre.

scholarly journals The Integration of Knowledge Resources and Logistic Resilience for Effective Disaster Management

2018 ◽  
Vol 2 (1) ◽  
pp. 17-31
Author(s):  
Muhammad Rizwan Junaid
Keyword(s):  
Population Growth ◽  
Natural Disasters ◽  
Natural Hazards ◽  
Disaster Management ◽  
Weather Conditions ◽  
Pivotal Role ◽  
Human Beings ◽  
Rapid Population Growth ◽  
Initial Attempt ◽  
Knowledge Resources

Rapid population growth, changing weather conditions and an increasing number of natural disasters have left human beings more vulnerable and exposed to nature’s onslaught. Disaster Management Organizations (DMOs) need to be more resilient, responsive and effective to counter these natural hazards and should not leave any stone unturned in order to play their pivotal role in rescue, relief and rehabilitation. Organizational knowledge and logistics are two core factors considered most significant in transforming a DMO into a resilient organization that can shoulder its due responsibility in a plausible and desired manner. This paper is an initial attempt that discusses the integration of knowledge resources and logistics to accelerate the process of the said transformation.

scholarly journals A Sub-6 GHz Vital Signs Sensor Using Software Defined Radios

2020 ◽  
Vol 2 (1) ◽  
pp. 38
Author(s):  
Onur Toker ◽  
Rawa Adla
Keyword(s):  
Phase Shift ◽  
Healthcare Workers ◽  
Low Cost ◽  
Vital Signs ◽  
Low Frequency ◽  
Software Radio ◽  
Distance Measurements ◽  
Fmcw Radar ◽  
Rf Components ◽  
Low Frequency Oscillations

Recently, there has been high demand for contactless devices for monitoring vital signs, therefore developing a low-cost contactless breathing sensor would have a great benefit for many patients and healthcare workers. In this paper, we propose a contactless sub-6 GHz breathing sensor with an implementation using a low-cost universal software radio peripheral (USRP) B205-mini device. A detailed performance analysis of the proposed system with different sensor algorithms is presented. The proposed system estimates the channel phase shift and detects the presence of low frequency oscillations in the estimated phase shift. Compared to 24 or 77 GHz FMCW-radar-based systems using distance measurements, the proposed system is simpler, can be built using more economical RF components, and requires lower sampling frequencies. Another key advantage of the proposed system is that even a very narrow unused frequency band is enough for the operation of the sensor. When operated at frequencies shared by other devices, the proposed system can turn off the transmitter at randomly selected intervals to detect the presence of other transmission activities, and can then switch to a different operating frequency. We provide both Python- and Octave/MATLAB-based implementations, which are available in a public GitHub repository.

scholarly journals Solving Real-Life Problems: Future Mobile Technology Sophistication

2016 ◽  
Vol 35 (3) ◽  
pp. 335-346
Author(s):  
Farhan Shafiq ◽  
Kamran Ahsan ◽  
Adnan Nadeem
Keyword(s):  
Disaster Management ◽  
Mobile Technology ◽  
Real Life ◽  
Vital Signs ◽  
Compensatory Mechanism ◽  
Management Domain ◽  
Process Procedures ◽  
Life Problems ◽  
Ease Of Access ◽  
Almost All

Almost all the human being real life concerned domains are taking advantage of latest technologies for enhancing their process, procedures and operations. This integration of technological innovations provides ease of access, flexibility, transparency, reliability and speed for the concerned process and procedures. Rapid growth of ICT (Information and Communication Technology) and MT (Mobile Technology) provides opportunity to redesign and reengineered the human routines’ life activities process and procedures. Technology integration and adoption in routine life activities may serves compensatory mechanism to assist the population in different manner such as monitoring older adults and children at homes, provides security assistance, monitoring and recording patients vital signs automatically, controlling and monitoring equipments and devices, providing assistance in shopping, banking and education as well. Disasters happened suddenly, destroy everything indiscriminately. Adoption and integration of latest technologies including ICT and MT can enhance the current disaster management process, procedures and operations. This research study focuses the impacts of latest and emerging technology trends in routine life activities and surrounds their potential strength to improve and enhance disaster management activities. MT is providing a promising platform for facilitating people to enhance their routine life activities. This research argue that integration and adoption of mobile computing in disaster management domain can enhance disaster management activities with promising minimizing error, quick information assembling, quick response based on technology manipulation and prioritizing action.

scholarly journals MEMS-Based Sensor for Simultaneous Measurement of Pulse Wave and Respiration Rate

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4942 ◽  
Author(s):  
Thanh-Vinh Nguyen ◽  
Masaaki Ichiki
Keyword(s):  
Respiration Rate ◽  
Microelectromechanical Systems ◽  
Pulse Wave ◽  
Vital Signs ◽  
Low Frequency ◽  
Sensing Element ◽  
Inner Pressure ◽  
Sensor Device ◽  
Frequency Components ◽  
The Subject

The continuous measurements of vital signs (body temperature, blood pressure, pulse wave, and respiration rate) are important in many applications across various fields, including healthcare and sports. To realize such measurements, wearable devices that cause minimal discomfort to the wearers are highly desired. Accordingly, a device that can measure multiple vital signs simultaneously using a single sensing element is important in order to reduce the number of devices attached to the wearer’s body, thereby reducing user discomfort. Thus, in this study, we propose a device with a microelectromechanical systems (MEMS)-based pressure sensor that can simultaneously measure the blood pulse wave and respiration rate using only one sensing element. In particular, in the proposed device, a thin silicone tube, whose inner pressure can be measured via a piezoresistive cantilever, is attached to the nose pad of a pair of eyeglasses. On wearing the eyeglasses, the tube of sensor device is in contact with the area above the angular artery and nasal cavity of the subject, and thus, both pulse wave and breath of the subject cause the tube’s inner pressure to change. We experimentally show that it is possible to extract information related to pulse wave and respiration as the low-frequency and high-frequency components of the sensor signal, respectively.

scholarly journals Avaliação de Metas Terapêuticas: Uma Proposta de Arquitetura Direcionada à UbiComp

2015 ◽  
Author(s):  
Alexandre Souza ◽  
João Lopes ◽  
Leonardo João ◽  
Patrícia Davet ◽  
Rodrigo Souza ◽  
...  
Keyword(s):  
Ubiquitous Computing ◽  
Software Architecture ◽  
Vital Signs ◽  
Current Situation ◽  
Therapeutic Goal ◽  
Vital Parameters

This paper proposes a software architecture targeted at Ubiquitous Computing (UbiComp) for providing awareness of the current situation of patients in hospitals. As a central contribution, this work provides the monitoring of the patient’s vital signs, allowing the physician to confirm that it is being reached desired effect with the administration of medications. In the developed architecture, this effect desired by physicians in vital parameters is named Therapeutic Goal. The evaluation of the architecture was done through a case study, higlighting the technologies used, and the prototypes developed.

An academic medical center’s response to widespread computer failure

2013 ◽  
Vol 8 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Nicholas Genes, MD, PhD ◽  
Michael Chary, PhD ◽  
Kevin W. Chason, DO
Keyword(s):  
Disaster Management ◽  
Disaster Preparedness ◽  
Medical Center ◽  
Vital Signs ◽  
Business Continuity ◽  
Business Continuity Planning ◽  
Continuity Planning ◽  
Hospital Operations ◽  
Academic Medical ◽  
The Impact

As hospitals incorporate information technology (IT), their operations become increasingly vulnerable to technological breakdowns and attacks. Proper emergency management and business continuity planning require an approach to identify, mitigate, and work through IT downtime. Hospitals can prepare for these disasters by reviewing case studies. This case study details the disruption of computer operations at Mount Sinai Medical Center (MSMC), an urban academic teaching hospital. The events, and MSMC’s response, are narrated and the impact on hospital operations is analyzed. MSMC’s disaster management strategy prevented computer failure from compromising patient care, although walkouts and time-to-disposition in the emergency department (ED) notably increased. This incident highlights the importance of disaster preparedness and mitigation. It also demonstrates the value of using operational data to evaluate hospital responses to disasters. Quantifying normal hospital functions, just as with a patient’s vital signs, may help quantitatively evaluate and improve disaster management and business continuity planning.

scholarly journals High dose psilocybin is associated with positive subjective effects in healthy volunteers

2018 ◽  
Vol 32 (7) ◽  
pp. 770-778 ◽  
Author(s):  
Christopher R Nicholas ◽  
Kelsey M Henriquez ◽  
Michele C Gassman ◽  
Karen M Cooper ◽  
Daniel Muller ◽  
...  
Keyword(s):  
Mystical Experience ◽  
Subjective Effects ◽  
Vital Signs ◽  
Well Being ◽  
High Dose ◽  
Moderate Increase ◽  
Time And Space ◽  
Significant Difference ◽  
Composite Scores ◽  
Experience Questionnaire

Aim: The aim of the current study was to investigate the relationship between escalating higher doses of psilocybin and the potential psilocybin occasioned positive subjective effects. Methods: Healthy participants ( n=12) were given three escalating doses of oral psilocybin (0.3 mg/kg; 0.45 mg/kg; 0.6 mg/kg) or (18.8–36.6 mg; 27.1–54.0 mg; 36.3–59.2 mg) a minimum of four weeks apart in a supervised setting. Blood and urine samples, vital signs, and electrocardiograms were obtained. Subjective effects were assessed using the Mystical Experience Questionnaire and Persisting Effects Questionnaire. Results: There was a significant linear dose-related response in Mystical Experience Questionnaire total score and the transcendence of time and space subscale, but not in the rate of a complete mystical experience. There was also a significant difference between dose 3 compared to dose 1 on the transcendence of time and space subscale, while no dose-related differences were found for Mystical Experience Questionnaire total scores or rate of a mystical experience. Persisting Effects Questionnaire positive composite scores 30 days after completion of the last dose were significantly higher than negative composite scores. Persisting Effects Questionnaire results revealed a moderate increase in sense of well-being or life satisfaction on average that was associated with the maximum Mystical Experience Questionnaire total score. Pharmacokinetic measures were associated with dose but not with Mystical Experience Questionnaire total scores or rate of a mystical experience. Conclusions: High doses of psilocybin elicited subjective effects at least as strong as the lower doses and resulted in positive persisting subjective effects 30 days after, indicating that a complete mystical experience was not a prerequisite for positive outcomes.

Sign in / Sign up

Export Citation Format

Share Document