Smartphone-Based Travel Survey

Author(s):  
Xianyu Jianchuan ◽  
Juan Zhicai ◽  
Xiao Guangnian ◽  
Fu Xuemei

This chapter describes a smartphone-based prompted recall travel survey that aims to collect more accurate data for transportation modeling. It details the design and implementation of the survey, including the smartphone app for the Android platform, the mobile phone-based prompted recall method, and the management, manipulation, and analysis of GPS data for trip characteristics imputation. The survey commenced in October 2013 and was a person-based pilot study designed to be collected over a week. Although it did not provide a statistically representative sample, the overall experience helps establish the various parameters and procedures for the development of surveys with similar initiatives. The chapter concludes with findings and lessons learned from this smartphone-based travel survey and suggestions for how future smartphone-based surveys might be prepared and conducted.

Author(s):  
Olivia M. Seecof ◽  
Molly Allanoff ◽  
John Liantonio ◽  
Susan Parks

Purpose: There is a dearth of literature regarding the documentation of advance care planning (ACP) in the geriatric population, despite the controversial, yet well-studied need for ACP. The purpose of this pilot study was to provide an update to a prior study from our institution that outlined the need for increased documentation of advance care planning (ACP) in an urban geriatric population. Methods: Our study involved using telemedicine to conduct dedicated ACP visits and an electronic medical record (EMR) note-template specifically designed for these visits in an attempt to increase the amount of documented ACP in the EMR in this population. Results: The study did not yield significant results due to the inability to schedule enough patients for these dedicated visits. Discussion: While our study was ultimately unsuccessful, 3 crucial lessons were identified that will inform and fuel future interventions by the authors to further the study of documentation of ACP.


Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 658
Author(s):  
Subin Mattara Chalill ◽  
Snehaunshu Chowdhury ◽  
Ramanujam Karthikeyan

Controlled crop growth parameters, such as average air velocity, air temperature, and relative humidity (RH), inside the greenhouse are necessary prerequisites for commercial greenhouse operation. Frequent overshoots of such parameters are noticed in the Middle East. Traditional heating ventilation and air-conditioning (HVAC) systems in such greenhouses use axial fans and evaporative cooling pads to control the temperature. Such systems fail to respond to the extreme heat load variations during the day. In this study, we present the design and implementation of a single span, commercial greenhouse using box type evaporative coolers (BTEC) as the backbone of the HVAC system. The HVAC system is run by a fully-automated real time feedback-based climate management system (CMS). A full-scale, steady state computational fluid dynamics (CFD) simulation of the greenhouse is carried out assuming peak summer outdoor conditions. A pilot study is conducted to experimentally monitor the environmental parameters in the greenhouse over a 20-h period. The recorded data confirm that the crop growth parameters lie within their required ranges, indicating a successful design and implementation phase of the commercial greenhouse on a pilot scale.


Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Graham Dinsdale ◽  
Joanne Manning ◽  
Ariane Herrick ◽  
Mark Dickinson ◽  
Christopher Taylor

Abstract Background/Aims  The lack of objective outcome measures for Raynaud's phenomenon (RP) has been a major limiting factor in development of effective treatments. At present, the Raynaud's Condition Score (RCS) is the only validated outcome measure, and is highly subjective. Mobile phone technology could provide a way forward. We have developed a smartphone app for RP monitoring that guides the patient through the process of capturing images of their hands during RP episodes, as well as capturing other data through post-attack and daily questionnaires. One of the objectives of our research programme (reported here) was to compare digital image (photographic) parameters to the RCS. Methods  40 patients with RP (8 with primary RP, 32 with RP secondary to systemic sclerosis) were recruited (40 female, median age (range): 57 years (25-74), median (range) duration of RP symptoms: 17 (0-53) years). Patients were given a smartphone handset with a pre-installed Raynaud’s Monitoring app and were trained on how to use it/take usable photographs. They were then asked to take photographs of RP attacks over a 14 day period and also to record the RCS for each episode. The app specifically prompts the patient to take a picture of their hand every minute during an attack, until confirmation is given that the attack is complete. At a 2nd visit, the handsets, images, and data were collected for analysis. The mean colour change during each RP attack was quantified (semi-automated method) by the Bhattacharyya distance (BD) in colour space between a region of interest (e.g. a section of a digit) and a control region (dorsal hand). BD was then compared to the RCS using ANOVA, after controlling for patient variability in the range of RCS values used by each patient. Results  A total of 3,030 images were collected, describing 229 RP attacks. The median RCS reported was 6 (inter-quartile range [IQR]: 4), while the median for BD was 5.6 (IQR 3.2). ANOVA showed that measured values of the mean image BD were significantly different when different values of RCS were recorded by the patient (p < 0.001), i.e. attacks where patients selected different values of RCS had significantly different values of BD. Across all attacks/patients the F-value from ANOVA for RCS was 76.2, suggesting that the variation in BD for different values of RCS is much greater than the variation in BD for any one value of RCS. Conclusion  Patients successfully used a smartphone app to collect photographs and data during episodes of RP. A strong association was found between skin colour change (via BD) and the gold-standard RCS. Mobile phone-documented colour change therefore has potential as an objective measure of RP. Further validation work is now required, as well as studies examining sensitivity to change. Disclosure  G. Dinsdale: None. J. Manning: None. A. Herrick: None. M. Dickinson: None. C. Taylor: None.


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Pizzo ◽  
C Costantino ◽  
D Giliberti ◽  
I Calò ◽  
C Vella ◽  
...  

Abstract Background Nowadays, smartphone overuse affects massively teenagers and young adults. From 2014 to 2018 in Italy, for the 11-17 years age group, there has been an increase from 79.9% to 85.8% of daily mobile phone users. This project aims to investigate usage prevalence and misuse/addiction of mobile phones in a representative sample of first-grade secondary school students of the Province of Palermo, Italy, carrying out educational interventions to promote a proper and conscious use of smartphone. Materials and Methods An anonymous, standardized and previously validated pre-intervention questionnaire consisting of 39 items on general socio-demographic characteristics, attitudes and habits regarding smartphone usage, was administered online to 10-15 years old students of the Palermo's Province. Moreover, two additional sets of 11 and 15 items contributed to calculate a Misuse and an Addiction Score, respectively. After administration, educational interventions aimed at promoting the correct and conscious use of the smartphone, were carried out. Results A total of 1600 students belonging to 16 schools, responded to the questionnaire. 93% of the sample had a personal smartphone and 84% had a personal profile on at least one social network. About 15% of the sample experienced cyber bullying episodes and 30% accessed to adult content online (38% of parents didn't set parental control on the devices). Overall, 78.3% of the sample showed a moderate to severe misuse and 38.3% a moderate to severe addiction to mobile phones. Conclusions The uncontrolled and unconscious use of smartphones among adolescents exposes to different health risks including psycho-social and cognitive-relational problems. Results obtained demonstrate high levels of misuse and addiction to mobile devices in a representative sample of students in a developed Country, suggesting the need to implement educational interventions and the development of guidelines to encourage a responsible use of smartphones. Key messages The present study highlights an uncontrolled and unconscious use of mobile phones among 11-15 years old aged students in Southern Italy. The implementation of educational intervention at school and the development of guidelines regulating smartphone usage among adolescents, should represent a future global health priority.


2005 ◽  
Vol 10 (sup1) ◽  
pp. 219-233 ◽  
Author(s):  
Alfred C. Marcus ◽  
Jerianne Heimendinger ◽  
Ellen Berman ◽  
Victor Strecher ◽  
Mary Anne Bright ◽  
...  

2014 ◽  
Vol 22 (10) ◽  
pp. 2677-2685 ◽  
Author(s):  
Andrew Weaver ◽  
Sharon B. Love ◽  
Mark Larsen ◽  
Milensu Shanyinde ◽  
Rachel Waters ◽  
...  

Hypertension ◽  
2021 ◽  
Vol 78 (Suppl_1) ◽  
Author(s):  
Jarod Parrish ◽  
Ciantel A Blyler ◽  
Henry E Okafor ◽  
L. Cindy Chang ◽  
Devika Nair ◽  
...  

Background: The Los Angeles Barbershop Blood Pressure Study (LABBPS) demonstrated that collaboration between barbers and pharmacists delivering hypertension management could significantly improve blood pressure as well as access to care. It is unknown if this model can be translated to other locations. This single-arm, proof-of-concept pilot study tested the development and implementation of a similar protocol in Nashville, TN (NCT04232124). Methods: Between 2019 and 2021, community stakeholders, clinicians, investigators, and the LABBPS team convened to adapt the study design and protocol. Established barbershops with barbers willing to be trained on study procedures were recruited as study sites. Non-Hispanic Black male clients, aged 35-79 years with systolic blood pressure (SBP) > 140 mmHg on two screening days were eligible for participation. Enrolled participants met with a pharmacist for lifestyle and medication management at least once monthly for a six-month period. Barbers measured blood pressure during haircuts for additional monitoring. Results: Eight barbershops in business for an average of 20 (± 5) years participated in the trial. Barbers from each shop (range: 1-4) were trained. A total of 419 clients completed screening visit 1, 82 were eligible and 52 (12%) completed visit 2. We enrolled 36, with 30 completing the initial clinical visit and 27 had complete data at 6-months. Participants were on average age 50 (± 10) years, had a body mass index 33 (± 6), 44% were currently smoking, 52% with high school or less education, and 56% reported current primary care. Baseline BP 157.7±17.1/ 95.1±13.9 mmHg improved to 125.7±11.9/75.6±9.5, a change of -32.1±21.6/ -19.5±14.1, respectively. At 6-months 85% of the group had a BP<140/90, 74% BP<135/85, and 67% BP<130/80. At baseline 15% of participants reported health as excellent/very good and this increased to 56% at 6-months (p=0.002). Adverse reactions reported were minimal. Conclusion: Implementation of the barber-pharmacist model of hypertension management and care delivery improved BP control among hypertensive Black men in Nashville. Lessons learned regarding adaptation overcoming unforeseen barriers will inform expansion into additional naïve locations for future research.


2010 ◽  
Vol 10 (11) ◽  
pp. 2215-2228 ◽  
Author(s):  
M. Angermann ◽  
M. Guenther ◽  
K. Wendlandt

Abstract. This article discusses aspects of communication architecture for early warning systems (EWS) in general and gives details of the specific communication architecture of an early warning system against tsunamis. While its sensors are the "eyes and ears" of a warning system and enable the system to sense physical effects, its communication links and terminals are its "nerves and mouth" which transport measurements and estimates within the system and eventually warnings towards the affected population. Designing the communication architecture of an EWS against tsunamis is particularly challenging. Its sensors are typically very heterogeneous and spread several thousand kilometers apart. They are often located in remote areas and belong to different organizations. Similarly, the geographic spread of the potentially affected population is wide. Moreover, a failure to deliver a warning has fatal consequences. Yet, the communication infrastructure is likely to be affected by the disaster itself. Based on an analysis of the criticality, vulnerability and availability of communication means, we describe the design and implementation of a communication system that employs both terrestrial and satellite communication links. We believe that many of the issues we encountered during our work in the GITEWS project (German Indonesian Tsunami Early Warning System, Rudloff et al., 2009) on the design and implementation communication architecture are also relevant for other types of warning systems. With this article, we intend to share our insights and lessons learned.


2009 ◽  
Vol 1 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Gregory J. Wiet ◽  
Jeff C. Rastatter ◽  
Sumit Bapna ◽  
Mark Packer ◽  
Don Stredney ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document