Abstract The ionospheric equivalent slab thickness ( $\tau $ τ ) is a parameter characterizing both the distribution of plasma in ionosphere and shape corresponding vertical electron density profile. It calculated as ratio total content (vTEC) to F2-layer maximum Nm F2). Since its definition dated back 60s, l...

Monitoring the Vertical Total Electron Content (VTEC) of ionosphere is important for applications ranging from navigation to detection space weather events. Therefore, emerging efforts have been made by several analysis centers estimate VTEC using different approaches in real-time. Global Navigation Satellite Systems (GNSS) a crucial technology modeling due its worldwide distributed receivers, ...

In the present work neural network has been developed for prediction of Vertical Total Electron Content (VTEC) over Bhopal (23.2°N, 77.4°E & MLAT 14.2°N), an equatorial anomaly crest region. The study is based on VTEC data recorded by a multi-frequency multi-constellation GNSS receiver installed at during May 2016 to August 2017. Neural Network (NN) consists artificial neurons that are used lea...

The ionosphere stands in the path of signals emitted by Global Navigation Satellite System (GNSS) satellites to receivers located on Earth’s surface. Many factors affect accuracy satellite positioning, but error due ionospheric refraction is largest among them. For this reason, it important minimize impact refraction, and models are one methods used. As intensity processes taking place variable...

BACKGROUND Although seasonality is a defining characteristic of many infectious diseases, few studies have described and compared seasonal patterns across diseases globally, impeding our understanding of putative mechanisms. Here, we review seasonal patterns across five enteric zoonotic diseases: campylobacteriosis, salmonellosis, vero-cytotoxigenic Escherichia coli (VTEC), cryptosporidiosis an...

Contamination of foods is a public health hazard that episodically causes thousands of deaths and sickens millions worldwide. To ensure food safety and quality, rapid, low-cost and easy-to-use detection methods are desirable. Here, the LabSystem is introduced for integrated, automated DNA purification, amplification and detection. It consists of a disposable, centrifugally driven DNA purificati...