Results 171 to 180 of about 2,062 (252)

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Lightweight three-factor authentication protocol for 6G-enabled healthcare systems using Chebyshev chaotic maps and BioHashing. [PDF]

Sci Rep
Abbas AM, Nasr ME, Abdelfatah RI.
europepmc   +1 more source

Towards Fingerprint Spoofing Detection in the Terahertz Range. [PDF]

Sensors (Basel), 2020
Pałka N, Kowalski M.
europepmc   +1 more source

Automated Imaging of Cultured Bacteria in Picoliter Droplets by Coherent Anti‐Stokes Raman Scattering and Two‐Photon Excited Fluorescence Microscopy

Journal of Raman Spectroscopy, EarlyView.
We present an automated system that combines an image‐based fuzzy logic controller for precise positioning of microfluidic picoliter droplets with nonlinear microscopy, using CARS and TPEF modalities for detailed analysis of droplet composition. Time series and z‐stack images of E. coli, B. subtilis, and M. arborescens were recorded.
Fabian Ott, Ashkan Samimi, Sundar Hengoju, Tobias Meyer‐Zedler, Michael Schmitt, Miriam A. Rosenbaum, Jürgen Popp   +6 more
wiley   +1 more source

A Novel Multimodal Biometric Person Authentication System Based on ECG and Iris Data. [PDF]

Biomed Res Int
Ashwini K, Keshava Murthy GN, Raviraja S, Srinidhi GA.   +3 more
europepmc   +1 more source

Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis, Lazaros Varvarezos, Sotiris Danakas, Elissavet Karkadaki, Cesar Bernando, Miroslav Kloz   +5 more
wiley   +1 more source

A comprehensive survey of deep face verification systems adversarial attacks and defense strategies. [PDF]

Sci Rep
Kilany S, Mahfouz A.
europepmc   +1 more source

Bioanalytical TERS and Advanced Data Processing Methods

Journal of Raman Spectroscopy, EarlyView.
Tip‐enhanced Raman spectroscopy delivers label‐free, subnanometer vibrational imaging of biological systems. Recent advances in instrumentation, data analysis, and ambient/liquid operation enable surface‐selective mapping of molecular heterogeneity in proteins, nucleic acids, membranes, and viruses, positioning TERS as a powerful platform for nanoscale
Sarika Joshi, Ankit Dodla, Sarthak Saxena, Twinkle Soni, Sumit Saxena, Shobha Shukla, Bayden R. Wood   +6 more
wiley   +1 more source

Recycling of hazelnut waste: Antidiabetic properties of soy lecithin nanoparticles and their in vitro anti‐proliferative effects in tumor cell lines

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Hazelnuts and foods produced using hazelnuts are consumed with pleasure, but it is important to evaluate the waste generated during hazelnut processing and determine their usage methods. RESULTS This study was conducted to determine the changes in bioactive components, bioaccessibility and antidiabetic activity of nanoparticles ...
Mehmet Ali Temiz, Emine Okumus
wiley   +1 more source

Biometry-based verification system with symmetric key generation method for internet of things environments. [PDF]

Sci Rep
Szymoniak S, Kubanek M.
europepmc   +1 more source