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https://www.readbyqxmd.com/read/28420133/using-dimensionality-reduction-techniques-for-refining-passive-indoor-positioning-systems-based-on-radio-fingerprinting
#1
Pedro E Lopez-de-Teruel, Oscar Canovas, Felix J Garcia
Indoor positioning methods based on fingerprinting and radio signals rely on the quality of the radio map. For example, for room-level classification purposes, it is required that the signal observations related to each room exhibit significant differences in their RSSI values. However, it is difficult to verify and visualize that separability since radio maps are constituted by multi-dimensional observations whose dimension is directly related to the number of access points or monitors being employed for localization purposes...
April 15, 2017: Sensors
https://www.readbyqxmd.com/read/28398944/alpine-skiing-as-winter-time-high-intensity-training
#2
Thomas Stöggl, Christoph Schwarzl, Edith E Müller, Masaru Nagasaki, Julia Stöggl, Martin Schönfelder, Josef Niebauer
INTRODUCTION: To counteract the winter activity deficit, we set out to analyze cardiorespiratory and metabolic responses of two high intensity training (HIT) protocols during alpine skiing (AS), cross-country skiing (XCS) and indoor cycling (IC) and the effects of sex, age and fitness level in this comparison. METHODS: Nineteen healthy subjects (two age and fitness groups, both sexes) performed AS, XCS, and IC with measurements of oxygen uptake (VO2), energy expenditure (EE), heart rate (HR), lactate, blood glucose and rate of perceived exertion, determined during 4-min of continuous high intensity (HITc: 90% HRmax for XCS and IC or short turn skiing during AS) or 10-min intermittent HIT [HITint: 5x1' high intensity (>90% HRmax or short turn skiing), 1' active recovery]...
April 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28367676/are-individual-differences-in-sleep-and-circadian-timing-amplified-by-use-of-artificial-light-sources
#3
Krithika Swaminathan, Elizabeth B Klerman, Andrew J K Phillips
Within the human population, there is large interindividual variability in the timing of sleep and circadian rhythms. This variability has been attributed to individual differences in sleep physiology, circadian physiology, and/or light exposure. Recent experimental evidence suggests that the latter is necessary to evoke large interindividual differences in sleep and circadian timing. We used a validated model of human sleep and circadian physiology to test the hypothesis that intrinsic differences in sleep and circadian timing are amplified by self-selected use of artificial light sources...
March 1, 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28366622/chronobiological-studies-on-body-search-oviposition-and-emergence-of-megaselia-scalaris-diptera-phoridae-in-controlled-conditions
#4
Esta Bostock, Edward W Green, Charalambos P Kyriacou, Stefano Vanin
Circadian clocks have evolved to synchronize physiology, metabolism and behaviour to the 24-h geophysical cycles of the Earth. Understanding the circadian clock mechanism could play an important role in forensic entomology because it temporally gates behaviour such as locomotor activities, feeding, mating, egg laying and adult emergence which could provide useful information for crime reconstruction. The scuttle fly Megaselia scalaris colonises both exposed and buried bodies, whether indoors or outdoors. Locomotor activity, oviposition and adult emergence of this species have been investigated using technologies employed in many previous Drosophila circadian studies...
March 18, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28353680/a-self-sustained-wireless-multi-sensor-platform-integrated-with-printable-organic-sensors-for-indoor-environmental-monitoring
#5
Chun-Chang Wu, Wen-Yu Chuang, Ching-Da Wu, Yu-Cheng Su, Yung-Yang Huang, Yang-Jing Huang, Sheng-Yu Peng, Shih-An Yu, Chih-Ting Lin, Shey-Shi Lu
A self-sustained multi-sensor platform for indoor environmental monitoring is proposed in this paper. To reduce the cost and power consumption of the sensing platform, in the developed platform, organic materials of PEDOT:PSS and PEDOT:PSS/EB-PANI are used as the sensing films for humidity and CO₂ detection, respectively. Different from traditional gas sensors, these organic sensing films can operate at room temperature without heating processes or infrared transceivers so that the power consumption of the developed humidity and the CO₂ sensors can be as low as 10 μW and 5 μW, respectively...
March 29, 2017: Sensors
https://www.readbyqxmd.com/read/28338797/an-estimation-of-the-exposure-of-the-population-of-israel-to-natural-sources-of-ionizing-radiation
#6
L Epstein, J Koch, T Riemer, G Haquin, I Orion
The radiation dose to the population of Israel due to exposure to natural sources of ionizing radiation was assessed. The main contributor to the dose is radon that accounts for 60% of the exposure to natural sources. The dose due to radon inhalation was assessed by combining the results of a radon survey in single-family houses with the results of a survey in apartments in multi-storey buildings. The average annual dose due to radon inhalation was found to be 1.2 mSv. The dose rate due to exposure to cosmic radiation was assessed using a code that calculates the dose rate at different heights above sea level, taking into account the solar cycle...
February 18, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28257531/prevalence-of-indoor-tanning-and-association-with-sunburn-among-youth-in-the-united-states
#7
Gery P Guy, Zahava Berkowitz, Sherry Everett Jones, Meg Watson, Lisa C Richardson
Importance: Indoor tanning and sunburns, particularly during adolescence and young adulthood, increase the risk of developing skin cancer. Objective: To examine the trends in the prevalence of indoor tanning and the association between indoor tanning and sunburn among US high school students. Design, Setting, and Participants: This study pooled and examined cross-sectional data from the 2009, 2011, 2013, and 2015 national Youth Risk Behavior Survey...
March 3, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28208591/fusion-of-inertial-magnetic-sensor-measurements-and-map-information-for-pedestrian-tracking
#8
Shu-Di Bao, Xiao-Li Meng, Wendong Xiao, Zhi-Qiang Zhang
The wearable inertial/magnetic sensor based human motion analysis plays an important role in many biomedical applications, such as physical therapy, gait analysis and rehabilitation. One of the main challenges for the lower body bio-motion analysis is how to reliably provide position estimations of human subject during walking. In this paper, we propose a particle filter based human position estimation method using a foot-mounted inertial and magnetic sensor module, which not only uses the traditional zero velocity update (ZUPT), but also applies map information to further correct the acceleration double integration drift and thus improve estimation accuracy...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28187779/bio-efficacy-of-deltamethrin-based-durable-wall-lining-against-wild-populations-of-anopheles-gambiae-s-l-in-northern-tanzania
#9
Eliningaya J Kweka, Ming-Chieh Lee, Beda J Mwang'onde, Filemoni Tenu, Stephen Munga, Epiphania E Kimaro, Yousif E Himeidan
BACKGROUND: Indoor residual spraying (IRS) is one of the preferred tools used for control of malaria in many settings in the world. However, this control tool still faces challenges that include lack of long lasting active ingredient, limited number of well-trained personal, and need of repeated treatment which increases operational costs and reduces acceptability by residents. As a result there is need to develop and validate other methods which can complement the existing controls. The current study compared the bio-efficacy of durable wall lining (DL) (treated with deltamethrin 265 mg/m(2)) and IRS (with deltamethrin 5% WP at 20 mg/m(2)) on indoor mosquitoes densities and biting behaviour of mosquitoes in comparison with control houses without either DL or IRS...
February 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28185805/comparison-of-energy-expenditure-and-heart-rate-responses-between-three-commercial-group-fitness-classes
#10
James B Wickham, Nicholas J Mullen, Douglas G Whyte, Jack Cannon
OBJECTIVES: The objectives of this study were to compare the energy expenditure and heart rate responses between three commercial group fitness classes (group resistance exercise [PUMP]; indoor stationary cycling [RIDE]; and step aerobics [STEP]). DESIGN: One-Way Repeated Measures incorporating a Latin Square Design for class randomisation. METHODS: Ten participants (5 males and 5 females) completed each group fitness class in random order with energy expenditure and heart rate determined using an Actiheart monitor...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28143613/how-can-information-systems-provide-support-to-nurses-hand-hygiene-performance-using-gamification-and-indoor-location-to-improve-hand-hygiene-awareness-and-reduce-hospital-infections
#11
Rita Marques, João Gregório, Fernando Pinheiro, Pedro Póvoa, Miguel Mira da Silva, Luís Velez Lapão
BACKGROUND: Hospital-acquired infections are still amongst the major problems health systems are facing. Their occurrence can lead to higher morbidity and mortality rates, increased length of hospital stay, and higher costs for both hospital and patients. Performing hand hygiene is a simple and inexpensive prevention measure, but healthcare workers' compliance with it is often far from ideal. To raise awareness regarding hand hygiene compliance, individual behaviour change and performance optimization, we aimed to develop a gamification solution that collects data and provides real-time feedback accurately in a fun and engaging way...
January 31, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28125546/the-effect-of-pumping-and-nonpumping-techniques-on-velocity-production-and-muscle-activity-during-field-based-bmx-cycling
#12
Lee P Rylands, Howard T Hurst, Simon J Roberts, Robert W Graydon
Rylands, LP, Hurst, HT, Roberts, SJ, and Graydon, RW. The effect of "pumping" and "nonpumping" techniques on velocity production and muscle activity during field-based BMX cycling. J Strength Cond Res 31(2): 445-450, 2017-The aim of the current study was to determine if a technique called "pumping" had a significant effect on velocity production in Bicycle Motocross (BMX) cycling. Ten National standard male BMX riders fitted with surface electromyography (sEMG) sensors completed a timed lap of an indoor BMX track using the technique of pumping, and a lap without pumping...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28113242/a-novel-method-for-continuous-non-invasive-cuff-less-measurement-of-blood-pressure-evaluation-in-patients-with-non-alcoholic-fatty-liver-disease
#13
Trine Seeberg, James Orr, Hanne Austad, Morten Roed, Steffen Dalgard, David Houghton, David Jones, Frode Strisland
OBJECTIVE: One promising approach for a continuous, non-invasive, cuff-less ambulatory BP monitor is to measure the pulse wave velocity or the inversely proportional pulse transit time (PTT), based on electrical and optical physiological measurements in the chest area. A device termed IsenseU-BP+ has been developed for measuring continuous BP, as well as other physiological data. The objective of this paper is to present results from the first clinical evaluation with a wide range of patients...
September 12, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28091570/increasing-the-potential-for-malaria-elimination-by-targeting-zoophilic-vectors
#14
Jessica L Waite, Sunita Swain, Penelope A Lynch, S K Sharma, Mohammed Asrarul Haque, Jacqui Montgomery, Matthew B Thomas
Countries in the Asia Pacific region aim to eliminate malaria by 2030. A cornerstone of malaria elimination is the effective management of Anopheles mosquito vectors. Current control tools such as insecticide treated nets or indoor residual sprays target mosquitoes in human dwellings. We find in a high transmission region in India, malaria vector populations show a high propensity to feed on livestock (cattle) and rest in outdoor structures such as cattle shelters. We also find evidence for a shift in vector species complex towards increased zoophilic behavior in recent years...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28031349/modeling-the-response-of-anopheles-gambiae-diptera-culicidae-populations-in-the-kenya-highlands-to-a-rise-in-mean-annual-temperature
#15
Dorothy Wallace, Olivia Prosper, Jacob Savos, Ann M Dunham, Jonathan W Chipman, Xun Shi, Bryson Ndenga, Andrew Githeko
A dynamical model of Anopheles gambiae larval and adult populations is constructed that matches temperature-dependent maturation times and mortality measured experimentally as well as larval instar and adult mosquito emergence data from field studies in the Kenya Highlands. Spectral classification of high-resolution satellite imagery is used to estimate household density. Indoor resting densities collected over a period of one year combined with predictions of the dynamical model give estimates of both aquatic habitat and total adult mosquito densities...
March 1, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/27999392/smart-pipe-system-for-a-shipyard-4-0
#16
Paula Fraga-Lamas, Diego Noceda-Davila, Tiago M Fernández-Caramés, Manuel A Díaz-Bouza, Miguel Vilar-Montesinos
As a result of the progressive implantation of the Industry 4.0 paradigm, many industries are experimenting a revolution that shipyards cannot ignore. Therefore, the application of the principles of Industry 4.0 to shipyards are leading to the creation of Shipyards 4.0. Due to this, Navantia, one of the 10 largest shipbuilders in the world, is updating its whole inner workings to keep up with the near-future challenges that a Shipyard 4.0 will have to face. Such challenges can be divided into three groups: the vertical integration of production systems, the horizontal integration of a new generation of value creation networks, and the re-engineering of the entire production chain, making changes that affect the entire life cycle of each piece of a ship...
December 20, 2016: Sensors
https://www.readbyqxmd.com/read/27991563/reversible-self-actuated-thermo-responsive-pore-membrane
#17
Younggeun Park, Maria Paz Gutierrez, Luke P Lee
Smart membranes, which can selectively control the transfer of light, air, humidity and temperature, are important to achieve indoor climate regulation. Even though reversible self-actuation of smart membranes is desirable in large-scale, reversible self-regulation remains challenging. Specifically, reversible 100% opening/closing of pore actuation showing accurate responsiveness, reproducibility and structural flexibility, including uniform structure assembly, is currently very difficult. Here, we report a reversible, thermo-responsive self-activated pore membrane that achieves opening and closing of pores...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27914935/laboratory-and-field-evaluation-of-brown-dog-tick-behavioral-responses-to-potential-semiochemicals
#18
Lucas P Carnohan, Phillip E Kaufman, Sandra A Allan, Salvador A Gezan, Emma N I Weeks
The brown dog tick, Rhipicephalus sanguineus sensu lato (Parasitiformis: Ixodidae), is an ectoparasite of dogs that can be found worldwide. This tick poses unique difficulties in management because it can complete its entire life cycle indoors and has demonstrated acaricide resistance. The ability to monitor for tick presence and abundance is necessary for developing effective control programs. As such, an evaluation of adult brown dog tick behavioral responses to 16 potential semiochemicals was undertaken using Y-tube and straight-tube olfactometers...
November 9, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27910895/arabidopsis-thaliana-as-a-suitable-model-host-for-research-on-interactions-between-plant-and-foliar-nematodes-parasites-of-plant-shoot
#19
Dong-Wei Wang, Xiao-Fang Peng, Hui Xie, Chun-Ling Xu, De-Qiang Cheng, Jun-Yi Li, Wen-Jia Wu, Ke Wang
The rice white tip nematode (RWTN), Aphelenchoides besseyi and the chrysanthemum foliar nematode (CFN), Aphelenchoides ritzemabosi are migratory plant parasitic nematodes that infect the aboveground parts of plants. In this research, Arabidopsis thaliana was infected by RWTN and CFN under indoor aseptic cultivation, and the nematodes caused recognizable symptoms in the leaves. Furthermore, RWTN and CFN completed their life cycles and proliferated. Therefore, A. thaliana was identified as a new host of RWTN and CFN...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908792/freebie-rhabdomyolysis-a-public-health-concern-spin-class-induced-rhabdomyolysis
#20
Maureen Brogan, Rudrick Ledesma, Alan Coffino, Praveen Chander
BACKGROUND: Rhabdomyolysis is a pathologic condition in which intracellular muscle constituents leak into the blood circulation. It is usually caused by muscle trauma. "Spinning" is an indoor form of cycling where participants use a special stationary exercise bicycle with a weighted flywheel and undergo high-intensity cycling classes focusing on endurance. There have been several case reports in the literature of exertional rhabdomyolysis following spin class. METHODS: Our nephrology practices have diagnosed a number of cases of symptomatic patients presenting to our emergency departments following their first spin classes, with histories and creatinine phosphokinase levels diagnostic of exertional rhabdomyolysis...
November 29, 2016: American Journal of Medicine
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