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Area body network

Duo Sheng, Min-Rong Hong
This paper presents an all-digital low-power oscillator for reference clocks in wireless body area network (WBAN) applications. The proposed on-chip complementary metal-oxide-semiconductor (CMOS) oscillator provides low-frequency clock signals with low power consumption, high delay resolution, and low circuit complexity. The cascade-stage structure of the proposed design simultaneously achieves high resolution and a wide frequency range. The proposed hysteresis delay cell further reduces the power consumption and hardware costs by 92...
October 14, 2016: Sensors
Alan G Wade, Gordon M Crawford, David Young, Joyce Leman, Neil Pumford
BACKGROUND: Scottish Intercollegiate Guidelines Network and National Institute of Health and Care Excellence guidelines stress the importance of assessing patients with psoriasis for psoriatic arthritis, comorbidities associated with severe disease and quality of life (QoL). The purpose of the study was to evaluate the primary care management of psoriasis in relation to disease severity and QoL from a patient's perspective. METHODS: A cross-sectional survey of adults (≥18 years) with psoriasis managed in primary care was conducted in Scotland over 1-year (2012-2013)...
October 14, 2016: BMC Family Practice
Bhoopal Rao Gangadari, Shaik Rafi Ahamed
In biomedical, data security is the most expensive resource for wireless body area network applications. Cryptographic algorithms are used in order to protect the information against unauthorised access. Advanced encryption standard (AES) cryptographic algorithm plays a vital role in telemedicine applications. The authors propose a novel approach for design of substitution bytes (S-Box) using second-order reversible one-dimensional cellular automata (RCA(2)) as a replacement to the classical look-up-table (LUT) based S-Box used in AES algorithm...
September 2016: Healthcare Technology Letters
Santino Gaudio, Lyle Wiemerslage, Samantha J Brooks, Helgi B Schiöth
This paper systematically reviews the literature pertaining to the use of resting-state functional magnetic resonance imaging (rsfMRI) in anorexia nervosa (AN), classifying studies on the basis of different analysis approaches. We followed PRISMA guidelines. Fifteen papers were included, investigating a total of 294 participants with current or past AN and 285 controls. The studies used seed-based, whole-brain independent component analysis (ICA), network-of-interest ICA based and graph analysis approaches...
October 8, 2016: Neuroscience and Biobehavioral Reviews
Bhoopal Rao Gangadari, Shaik Rafi Ahamed
In this paper, we presented a novel approach of low energy consumption architecture of S-Box used in Advanced Encryption Standard (AES) algorithm using programmable second order reversible cellular automata (RCA (2)). The architecture entails a low power implementation with minimal delay overhead and the performance of proposed RCA (2) based S-Box in terms of security is evaluated using the cryptographic properties such as nonlinearity, correlation immunity bias, strict avalanche criteria, entropy and also found that the proposed architecture is secure enough for cryptographic applications...
December 2016: Journal of Medical Systems
Cynthia J Schoen, Jacob N Ablin, Eric Ichesco, Rupal J Bhavsar, Laura Kochlefl, Richard E Harris, Daniel J Clauw, Richard H Gracely, Steven E Harte
INTRODUCTION: Application of noxious stimulation to one body area reduces pain sensitivity in a remote body area through activation of an endogenous pain-inhibitory network, a behavioral phenomenon referred to as conditioned pain modulation (CPM). The efficiency of CPM is predictive of a variety of health outcomes, while impaired CPM has been associated with various chronic pain conditions. Current methods used to assess CPM vary widely, and interest in CPM method development remains strong...
2016: Journal of Pain Research
Un-Ha Kim, Eutteum Kong, Hyun-Ho Choi, Jung-Ryun Lee
Data aggregation plays an important role to improve the transmission efficiency in wireless body area networks (WBANs); however, it inherently induces additional aggregation delay. Therefore, the effect of packet aggregation on WBAN applications, which are vulnerable to delay, must be analyzed rigorously. In this paper, we analyze the packet aggregation delay for multisource sensor data with an on-off traffic pattern in WBANs. Considering two operational parameters of the aggregation threshold and aggregation timer, we calculate the probability that a packet aggregation occurs during a unit time and then derive the average aggregation delay in closed-form...
September 30, 2016: Sensors
Anyembe Andrew Omala, Niyifasha Robert, Fagen Li
Wireless body area network (WBANs) is composed of sensors that collect and transmit a person's physiological data to health-care providers in real-time. In order to guarantee security of this data over open networks, a secure data transmission mechanism between WBAN and application provider's servers is of necessity. Modified medical data does not provide a true reflection of an individuals state of health and its subsequent use for diagnosis could lead to an irreversible medical condition. In this paper, we propose a lightweight certificateless signcryption scheme for secure transmission of data between WBAN and servers...
November 2016: Journal of Medical Systems
Roberto Erro, Stephanie T Hirschbichler, Lucia Ricciardi, Agata Ryterska, Elena Antelmi, Christos Ganos, Carla Cordivari, Michele Tinazzi, Mark J Edwards, Kailash P Bhatia
BACKGROUND: Mental rotation of body parts engages cortical-subcortical areas that are actually involved in the execution of a movement. Musicians' dystonia is a type of focal hand dystonia that is grouped together with writer's cramp under the rubric of "occupational dystonia", but it is unclear to which extent these two disorders share common pathophysiological mechanisms. Previous research has demonstrated patients with writer's cramp to have deficits in mental rotation of body parts...
September 28, 2016: Brain and Cognition
Annelise Raillon Moulinet, Lucie Chochina, Stéphanie Challois Leplaideur, Elise Bannier, Jean-Christophe Ferre, Isabelle Bonan
OBJECTIVE: Subjects use different referentials for spatial localization, and the egocentric references are very often impaired especially during stroke. The objective is to find the difference between activations induced by 2 egocentric tasks MATERIAL/PATIENTS AND METHODS: Seventeen right-handed healthy subjects (50.4±14.9 years) were tested using fMRI during the realization of 2 egocentric spatial tasks: the perception of the straight ahead (retinocentric) and the longitudinal axis of the body (centered by the trunk)...
September 2016: Annals of Physical and Rehabilitation Medicine
Riccardo Paracampo, Emmanuele Tidoni, Sara Borgomaneri, Giuseppe di Pellegrino, Alessio Avenanti
Understanding whether another's smile reflects authentic amusement is a key challenge in social life, yet, the neural bases of this ability have been largely unexplored. Here, we combined transcranial magnetic stimulation (TMS) with a novel empathic accuracy (EA) task to test whether sensorimotor and mentalizing networks are critical for understanding another's amusement. Participants were presented with dynamic displays of smiles and explicitly requested to infer whether the smiling individual was feeling authentic amusement or not...
September 22, 2016: Cerebral Cortex
Seon-Eui Hong, Ae-Kyoung Lee, Jong-Hwa Kwon, Jeong-Ki Pack
In this study, we investigated the electromagnetic dosimetry for smart-watches. At present, the standard for compliance testing of body-mounted and handheld devices specifies the use of a flat phantom to provide conservative estimates of the peak spatial-averaged specific absorption rate (SAR). This means that the estimated SAR using a flat phantom should be higher than the SAR in the exposure part of an anatomical human-body model. To verify this, we numerically calculated the SAR for a flat phantom and compared it with the numerical calculation of the SAR for four anatomical human-body models of different ages...
October 7, 2016: Physics in Medicine and Biology
Luís Ribeiro, Juan Carlos Pindo, Luis Dominguez-Granda
The Guayas region in Ecuador is economically very important, producing 68% of the national crops. The main agricultural activities threaten the groundwater therein with nitrate contamination given the large fertiliser and water needs. The present work tests the applicability of the susceptibility index assessment method in evaluating the impact of agricultural activities on groundwater quality, using as a case study an aquifer of the Guayas river basin in Ecuador. The index adapts four parameters of the DRASTIC method and incorporated a new land use parameter...
September 16, 2016: Science of the Total Environment
Michela Candini, Marina Farinelli, Francesca Ferri, Stefano Avanzi, Daniela Cevolani, Vittorio Gallese, Georg Northoff, Francesca Frassinetti
Much research suggested that recognizing our own body-parts and attributing a body-part to our physical self-likely involve distinct processes. Accordingly, facilitation for self-body-parts was found when an implicit, but not an explicit, self-recognition was required. Here, we assess whether implicit and explicit bodily self-recognition is mediated by different cerebral networks and can be selectively impaired after brain lesion. To this aim, right- (RBD) and left- (LBD) brain damaged patients and age-matched controls were presented with rotated pictures of either self- or other-people hands...
2016: Frontiers in Human Neuroscience
Hao Ren, Hongwei Li, Xiaohui Liang, Shibo He, Yuanshun Dai, Lian Zhao
With the rapid growth of the health data scale, the limited storage and computation resources of wireless body area sensor networks (WBANs) is becoming a barrier to their development. Therefore, outsourcing the encrypted health data to the cloud has been an appealing strategy. However, date aggregation will become difficult. Some recently-proposed schemes try to address this problem. However, there are still some functions and privacy issues that are not discussed. In this paper, we propose a privacy-enhanced and multifunctional health data aggregation scheme (PMHA-DP) under differential privacy...
2016: Sensors
Xiaoya Xu, Miao Zhong, Jiafu Wan, Minglun Yi, Tiancheng Gao
In adverse working conditions, environmental parameters such as metallic dust, noise, and environmental temperature, directly affect the health condition of manufacturing workers. It is therefore important to implement health monitoring and management based on important physiological parameters (e.g., heart rate, blood pressure, and body temperature). In recent years, new technologies, such as body area networks, cloud computing, and smart clothing, have allowed the improvement of the quality of services. In this article, we first give five-layer architecture for health monitoring and management of manufacturing workers...
October 2016: Journal of Medical Systems
Alexander von Luhmann, Heidrun Wabnitz, Tilmann Sander, Klaus-Robert Muller
OBJECTIVE: For the further development of the fields of telemedicine, neurotechnology and Brain-Computer Interfaces (BCI), advances in hybrid multimodal signal acquisition and processing technology are invaluable. Currently, there are no commonly available hybrid devices combining bio-electrical and bio-optical neurophysiological measurements (here Electroencephalography (EEG) and functional Near Infrared Spectroscopy (fNIRS)). Our objective was the design of such an instrument, and that in a miniaturized, customizable and wireless form...
September 9, 2016: IEEE Transactions on Bio-medical Engineering
Jochen Seitz, Manuel Hueck, Brigitte Dahmen, Martin Schulte-Rüther, Tanja Legenbauer, Beate Herpertz-Dahlmann, Kerstin Konrad
OBJECTIVE: Recent evidence has suggested an increased rate of comorbid ADHD and subclinical attentional impairments in bulimia nervosa (BN) patients. However, little is known regarding the underlying neural mechanisms of attentional functions in BN. METHOD: Twenty BN patients and twenty age- and weight-matched healthy controls (HC) were investigated using a modified version of the Attention Network Task (ANT) in an fMRI study. This design enabled an investigation of the neural mechanisms associated with the three attention networks involved in alerting, reorienting and executive attention...
2016: PloS One
Daniel L Albaugh, Andrew Salzwedel, Nathalie Van Den Berge, Wei Gao, Garret D Stuber, Yen-Yu Ian Shih
Deep brain stimulation of the nucleus accumbens (NAc-DBS) is an emerging therapy for diverse, refractory neuropsychiatric diseases. Although DBS therapy is broadly hypothesized to work through large-scale neural modulation, little is known regarding the neural circuits and networks affected by NAc-DBS. Using a healthy, sedated rat model of NAc-DBS, we employed both evoked- and functional connectivity (fc) MRI to examine the functional circuit and network changes achieved by electrical NAc stimulation. Optogenetic-fMRI experiments were also undertaken to evaluate the circuit modulation profile achieved by selective stimulation of NAc neurons...
2016: Scientific Reports
Mustafa Shakir, Obaid Ur Rehman, Mudassir Rahim, Nabil Alrajeh, Zahoor Ali Khan, Mahmood Ashraf Khan, Iftikhar Azim Niaz, Nadeem Javaid
Due to the recent development in the field of Wireless Sensor Networks (WSNs), the Wireless Body Area Networks (WBANs) have become a major area of interest for the developers and researchers. Human body exhibits postural mobility due to which distance variation occurs and the status of connections amongst sensors change time to time. One of the major requirements of WBAN is to prolong the network lifetime without compromising on other performance measures, i.e., delay, throughput and bandwidth efficiency. Node prioritization is one of the possible solutions to obtain optimum performance in WBAN...
2016: Sensors
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