Results 41 to 50 of about 24,314 (164)
Annals of Neurology, EarlyView.Objective Sporadic late‐onset Alzheimer's disease (AD) is characterized by a long pre‐clinical phase where amyloid‐beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ‐PET) and plasma Aβ42/40 become ...
Rodrigo Cánovas +29 more
wiley +1 more source
An Improved Algorithm to Generate a Wi-Fi Fingerprint Database for Indoor Positioning
Sensors, 2013 The major problem of Wi-Fi fingerprint-based positioning technology is the signal strength fingerprint database creation and maintenance. The significant temporal variation of received signal strength (RSS) is the main factor responsible for the ...
Zhengqi Zheng +4 more
doaj +1 more source
Default Effect in ESG Investment: When a Recommendation Goes a Long Way
Business Strategy and the Environment, EarlyView.ABSTRACT Individual investors display a positive attitude toward ESG investments but typically fail to act upon it. We report results from a preregistered online experiment testing a default option on 1050 US investors examining the mechanisms driving the effectiveness of default options in promoting ESG investments.
Sai Sravanthi Ramadugula +2 more
wiley +1 more source
ICT ExpressIn this paper, a network-independent distributed relay sensor (RS) activating method is proposed for energy-efficient cooperative communications using RSs.
Jingon Joung, Jian Zhao
doaj +1 more source
RF Localization in Indoor Environment [PDF]
, 2012 In this paper indoor localization system based on the RF power measurements of the Received Signal Strength (RSS) in WLAN environment is presented. Today, the most viable solution for localization is the RSS fingerprinting based approach, where in order ...
Begusić, D., Russo, M., Stella, M.
core +1 more source
International Journal of Gynecology &Obstetrics, EarlyView.Abstract Background Episiotomy is a common obstetric procedure often associated with significant postpartum pain and delayed wound healing. Conventional treatments provide limited relief and might not be suitable for all women. Energy‐based therapies, including infrared irradiation and low‐level laser therapy (LLLT), a non‐thermal photo biomodulation ...
Shira Regev‐Sadeh +4 more
wiley +1 more source
Location Estimation Using Space-Time Signal Processing in RFID Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2013 We consider real-time locating systems (RTLS) consisting of radio frequency identification (RFID) tags and multiantenna readers to propose a novel location estimation algorithm based on the concept of space-time signature matching for multipath ...
Chang-Heon Oh
doaj +1 more source
Indoor Location Sensing with Invariant Wi-Fi Received Signal Strength Fingerprinting
Sensors, 2016 A method of location fingerprinting based on the Wi-Fi received signal strength (RSS) in an indoor environment is presented. The method aims to overcome the RSS instability due to varying channel disturbances in time by introducing the concept of ...
Mohd Nizam Husen, Sukhan Lee
doaj +1 more source
Joint Ultra-wideband and Signal Strength-based Through-building Tracking for Tactical Operations
, 2013 Accurate device free localization (DFL) based on received signal strength (RSS) measurements requires placement of radio transceivers on all sides of the target area. Accuracy degrades dramatically if sensors do not surround the area.
Bocca, Maurizio +2 more
core +1 more source
Irrigation and Drainage, EarlyView.ABSTRACT Food security in Kerala depends on effective irrigation, but poor‐quality irrigation water poses threats such as salinity, sodicity and reduced soil productivity. Although past assessments have been localised, this study presents the first comprehensive, statewide evaluation of irrigation water suitability across 44 major rivers in Kerala.
Raji Karuna +2 more
wiley +1 more source