Results 61 to 70 of about 1,161 (185)

Cortical synchrony is reduced in Alzheimer's disease and relates to arousal state

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION The brain is a complex dynamical system, influenced by arousal state. Cortical synchrony supports information processing and is disrupted in Alzheimer's disease (AD). Locus coeruleus (LC) integrity and pupillometry index arousal system structure and function.
Michael C. B. David, Emma‐Jane Mallas, Magdalena A. Kolanko, Martina Del Giovane, Danielle L. Kurtin, Ramin Nilforooshan, Karl A. Zimmerman, Cristina Bonet Olivares, Peter J. Lally, CR&T Group of UKDRI, David J. Sharp, Paresh A. Malhotra, Gregory Scott   +12 more
wiley   +1 more source

Automatic Modulation Classification of LFM and Polyphase-coded Radar Signals [PDF]

Radioengineering, 2017
There are several techniques for detecting and classifying low probability of intercept radar signals such as Wigner distribution, Choi-Williams distribution and time-frequency rate distribution, but these distributions require high SNR. To overcome this
S. B. S. Hanbali, R. Kastantin
doaj  

Unraveling the Electron Transfer Mechanism in the Reduction of Bis(µ‐Oxido) Dicopper Complexes

ChemistryEurope, Volume 4, Issue 6, June 2026.
We elucidate the electron transfer mechanism in bis(µ‐oxido) dicopper complexes stabilized by guanidine ligands. Kinetic and spectroscopic analyses reveal two sequential reduction steps without isomerization to µ‐η²:η²‐peroxido species. Marcus and density functional theory studies show ligand‐dependent reorganization energies and a unique two‐spin–four‐
Regina Schmidt, Leander Weinelt, Larissa Laurini, Nils Jannis Becker, Alexander Hoffmann, Sonja Herres‐Pawlis   +5 more
wiley   +1 more source

Evolution of Netted Radar Systems

IEEE Access, 2020
The netted radar systems are known for being able to provide higher target detection probabilities, more accurate measurements, and better multi-target tracking performance than the monostatic/bistatic radar systems by exploiting information fusion ...
Zhe Geng
doaj   +1 more source

Analysis of intra-pulse frequency-modulated, low probability of interception, radar signals

Sādhanā, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A R SACHIN, Sooraj K AMBAT, K V S HARI
openaire   +2 more sources

Non‐Migrant Women and Their Livelihoods in the Sundarbans, Bangladesh

Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.
This graphical abstract illustrates the Sundarbans social–ecological system and its influence on women's livelihood strategies, particularly migration and non‐migration decisions. It highlights the interaction between ecological (ecosystem services) and social (institutional interventions, governance) subsystems, shaping livelihood capitals (natural ...
Marta Martínez‐Fabiani, Bishawjit Mallick, Mucahid Mustafa Bayrak   +2 more
wiley   +1 more source

Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance

International Journal of Antennas and Propagation, 2016
Frequency diverse array (FDA) has its unique advantage in realizing low probability of intercept (LPI) technology for its dependent beam pattern. In this paper, we proposed a cognitive radar based on the frequency diverse array multiple-input multiple ...
Ling Huang, Kuandong Gao, Zhiming He, Jingye Cai   +3 more
doaj   +1 more source

Elevation Filters Lizard Species Occurrences and Assemblages in Chitwan Annapurna Landscape, Nepal

Ecology and Evolution, Volume 16, Issue 6, June 2026.
We investigated lizard species richness,assemblage patterns, and environmental drivers along the elevational gradient in the Chitwan Annapurna Landscape during 2018–2019. We recorded 23 lizard species and found that species richness varied significantly and non‐linearly with elevation, peaking at mid elevation. Species turnover dominated beta diversity,
Bishnu Prasad Bhattarai, Sandeep Regmi, Bishnu Aryal, Pradip Kandel, Jagan Nath Adhikari   +4 more
wiley   +1 more source

Artificial Intelligence applications in Noise Radar Technology

IET Radar, Sonar & Navigation
Radar systems are a topic of great interest, especially due to their extensive range of applications and ability to operate in all weather conditions. Modern radars have high requirements such as its resolution, accuracy and robustness, depending on the ...
Afonso L. Sénica, Paulo A. C. Marques, Mário A. T. Figueiredo   +2 more
doaj   +1 more source

Emu (Dromaius novaehollandiae) diet is driven by the gradient of C3 and C4 plant availability

Ecosphere, Volume 17, Issue 6, June 2026.
Abstract Intraspecific variation in diet is often influenced by geographic location, resource availability, trophic position, or foraging specialization and can result in environmental changes exerting heterogeneous effects across the species' distribution.
Julia Ryeland, Kate J. Brandis
wiley   +1 more source