Mobile phones or smartphones are rapidly becoming the central computer and communication device in people's lives. Application delivery channels such as Apple AppStore transforming mobile into App Phones, capable of downloading a myriad applications an instant. Importantly, today's programmable come with growing set cheap powerful embedded sensors, accelerometer, digital compass, gyroscope, GPS, microphone, camera, which enabling emergence personal, group, communityscale sensing...

We present the design, implementation, evaluation, and user ex periences of theCenceMe application, which represents first system that combines inference presence individuals using off-the-shelf, sensor-enabled mobile phones with sharing this information through social networking applications such as Facebook MySpace. discuss challenges for development software on Nokia N95 phone. design tradeoffs split-level classification, whereby personal sensing (e.g., walking, in conversation, at gym)...

Much of the stress and strain student life remains hidden. The StudentLife continuous sensing app assesses day-to-day week-by-week impact workload on stress, sleep, activity, mood, sociability, mental well-being academic performance a single class 48 students across 10 week term at Dartmouth College using Android phones. Results from study show number significant correlations between automatic objective sensor data smartphones health educational outcomes body. We also identify lifecycle in...

Event-driven sensor networks operate under an idle or light load and then suddenly become active in response to a detected monitored event. The transport of event impulses is likely lead varying degrees congestion the network depending on sensing application. It during these periods that likelihood greatest information transit most importance users. To address this challenge we propose energy efficient control scheme for called CODA (COngestion Detection Avoidance) comprises three...

Background The vast majority of people worldwide have been impacted by coronavirus disease (COVID-19). In addition to the millions individuals who infected with disease, billions asked or required local and national governments change their behavioral patterns. Previous research on epidemics traumatic events suggests that this can lead profound mental health changes; however, researchers are rarely able track these changes frequent, near-real-time sampling compare findings previous years...

We propose PSFQ (Pump Slowly, Fetch Quickly), a reliable transport protocol suitable for new class of data applications emerging in wireless sensor networks. For example, currently networks tend to be application specific and are typically hard-wired perform task efficiently at low cost; however, there is an need able re-task or reprogram groups sensors on the fly (e.g., during disaster recovery). Due application-specific nature networks, it difficult design single monolithic system that can...

Top end mobile phones include a number of specialized (e.g., accelerometer, compass, GPS) and general purpose sensors microphone, camera) that enable new people-centric sensing applications. Perhaps the most ubiquitous unexploited sensor on is microphone - powerful capable making sophisticated inferences about human activity, location, social events from sound. In this paper, we exploit untapped not in context communications but as an enabler We propose SoundSense, scalable framework for...

Technological advances in sensing, computation, storage, and communications will turn the near-ubiquitous mobile phone into a global sensing device. People-centric help drive this trend by enabling different way to sense, learn, visualize, share information about ourselves, friends, communities, we live, world live in. It juxtaposes traditional view of mesh sensor networks with one which people, carrying devices, enable opportunistic coverage. In MetroSense Project's vision people-centric...

Supporting continuous sensing applications on mobile phones is challenging because of the resource demands long-term sensing, inference and communication algorithms. We present design, implementation evaluation Jigsaw engine, which balances performance needs application phone. comprises a set pipelines for accelerometer, microphone GPS sensors, are built in plug play manner to support: i) resilient accelerometer data processing, allows inferences be robust different phone hardware,...

The survival of various isolates Cryptosporidium parvum oocysts under a range environmental pressures including freezing, desiccation, and water treatment processes in physical environments commonly associated with such as feces types was monitored. Oocyst viability assessed by vitro excystation assay based on the exclusion or inclusion two fluorogenic vital dyes. Although desiccation found to be lethal, small proportion were able withstand exposure temperatures low -22 degrees C....

Stress can have long term adverse effects on individuals' physical and mental well-being. Changes in the speech production process is one of many physiological changes that happen during stress. Microphones, embedded mobile phones carried ubiquitously by people, provide opportunity to continuously non-invasively monitor stress real-life situations. We propose StressSense for unobtrusively recognizing from human voice using smartphones. investigate methods adapting a one-size-fits-all model...

The vast majority of advances in sensor network research over the last five years have focused on development a series small-scale (100s nodes) testbeds and specialized applications (e.g., environmental monitoring, etc.) that are built low-powered devices self-organize to form application-specific multihop wireless networks. We believe networks reached an important crossroads their development. question we address this paper is how propel from origins, into commercial mainstream people's...

Wireless access to Internet services will become typical, rather than the exception as it is today. Such a vision presents great demands on mobile networks. Mobile IP represents simple and scalable global mobility solution but lacks support for fast handoff control paging found in cellular telephony In contrast, second- third-generation systems offer seamless are built complex costly connection-oriented networking infrastructure that inherent flexibility, robustness, scalability this article...

At some point in the future, how far out we do not exactly know, wireless access to Internet will outstrip all other forms of bringing freedom mobility way web, communicate with each other, and conduct business. In short, is going mobile wireless, perhaps quite soon. A number diverse technologies are leading charge, including, 3G cellular networks based on CDMA technology, a wide variety what deemed 2.5G (e.g., EDGE, GPRS HDR), IEEE 802.11 local area (WLANs). Wireless ISPs offer these users....

For applications relying on the transfer of multimedia, and in particular continuous media, it is essential that quality service (QoS) guaranteed system-wide, including end-systems, communications systems networks. Although researchers have addressed many isolated areas QoS provision, little attention has so far been paid to definition an integrated coherent framework incorporates interfaces, management mechanisms across all architectural layers. To address this deficiency, we are developing...

A viability assay for oocysts of Cryptosporidium parvum based on the inclusion or exclusion two fluorogenic vital dyes, 4',6-diamidino-2-phenylindole (DAPI) and propidium iodide, was developed by using several different isolates oocysts. Correlation this with measured in vitro excystation highly statistically significant, a calculated correlation coefficient 0.997. In research, similar protocols were utilized, no significant difference between detected. Percent oocyst suspensions could be...

We present a performance comparison of number key micromobility protocols that have been discussed in the IETF Mobile IP Working Group over past several years. complement by offering fast and seamless handoff control limited geographical areas, paging support scalability power conservation. show despite apparent differences between protocols, operational principles govern them are largely similar. use this observation to establish generic model better understand design trade offs. A choices...

A key challenge for mobile health is to develop new technology that can assist individuals in maintaining a healthy lifestyle by keeping track of their everyday behaviors. Smartphones embedded with wide variety sensors are enabling generation personal applications activ

Optimal mental health care is dependent upon sensitive and early detection of problems. We have introduced a state-of-the-art method for the current study remote behavioral monitoring that transports assessment out clinic into environments in which individuals negotiate their daily lives. The objective this was to examine whether information captured with multimodal smartphone sensors can serve as markers one's health. hypothesized (a) unobtrusively collected sensor data would be associated...

We describe our experiences deploying BikeNet, an extensible mobile sensing system for cyclist experience mapping leveraging opportunistic sensor networking principles and techniques. BikeNet represents a multifaceted explores personal, bicycle, environmental using dynamically role-assigned bike area based on customized Moteiv Tmote Invent motes sensor-enabled Nokia N80 phones. investigate real-time delay-tolerant uploading of data via number access points (SAPs) to networked repository....

We present BikeNet, a mobile sensing system for mapping the cyclist experience. Built leveraging MetroSense architecture to provide insight into real-world challenges of people-centric sensing, BikeNet uses number sensors embedded cyclist's bicycle gather quantitative data about rides. dual-mode operation collection, using opportunistically encountered wireless access points in delay-tolerant fashion by default, and cellular channel phone real-time communication as required. also provides...

There are rising rates of depression on college campuses. Mental health services our campuses working at full stretch. In response researchers have proposed using mobile sensing for continuous mental assessment. Existing work understanding the relationship between and depression, however, focuses generic behavioral features that do not map to major depressive disorder symptoms defined in standard disorders diagnostic manual (DSM-5). We propose a new approach predicting passive data from...