Results 91 to 100 of about 3,989 (204)

A PHD-Based Particle Filter for Detecting and Tracking Multiple Weak Targets

IEEE Access, 2019
Joint detection and tracking weak target is a challenging problem whose complexity is intensified when there are multiple targets present at the same time.
Zhichao Bao, Qiuxi Jiang, Fangzheng Liu
doaj   +1 more source

Variable electrophysiology before and after block of the two delayed rectifier potassium channels in groups of isolated rabbit ventricular cells

British Journal of Pharmacology, Volume 183, Issue 13, Page 3685-3705, July 2026.
Abstract Background and Purpose Between‐cell differences in ventricular cardiomyocyte action potential duration (APD) and responses to ion channel block may contribute to pro‐arrhythmic dispersion of myocardial repolarisation. This study quantifies between‐cell physiological and pharmacological variability in the rabbit left ventricle (LV) and uses ...
Rebecca J. Gilchrist, Muhamad Hifzhudin Noor Aziz, Francis L. Burton, Radostin D. Simitev, Rachel C. Myles, Godfrey L. Smith   +5 more
wiley   +1 more source

Is There Life After Death? The Role of Standing Dead Phorophytes in Supporting Tropical Epiphyte Diversity

Biotropica, Volume 58, Issue 4, July 2026.
ABSTRACT Global increases in tree mortality from climate change and land‐use are altering forest structures, impacting canopy‐dwelling plants like vascular epiphytes, which depend on host trees (phorophytes). When a phorophyte dies standing, it becomes a snag, the local substrate conditions change and microclimatic exposure may increase, particularly ...
Camila Nardy Delgado, Samyra Gomes Furtado, Luiz Menini Neto, Flavio Nunes Ramos   +3 more
wiley   +1 more source

Smooth Variable Structure Filter in Random Finite Set Applications

IEEE Access
Data association and filter robustness are two key problems for general multiple target tracking. Classic data association methods have high computational complexity, and the gold standard Kalman Filter (KF) suffers when the motion model does not match ...
Howard Zhang, Martin V. Mohrenschildt, Saeid Habibi, Ryan Ahmed   +3 more
doaj   +1 more source

Adaptive Measurement Partitioning Algorithm for a Gaussian Inverse Wishart PHD Filter that Tracks Closely Spaced Extended Targets [PDF]

Radioengineering, 2017
Use of the Gaussian inverse Wishart probability hypothesis density (GIW-PHD) filter has demonstrated promise as an approach to track an unknown number of extended targets.
P. Li, H. Ge, J. Yang
doaj  

Joint Tracking and Classification of Extended Targets Using Random Matrix and Bernoulli Filter for Time-Varying Scenarios

IEEE Access, 2019
In surveillance applications, the extent states and measurements of extended targets received by sensors are time-varying. In this paper, we propose a joint tracking and classification (JTC) method for single extended target under the presence of clutter
Liping Wang, Yuan Huang, Ronghui Zhan, Jun Zhang   +3 more
doaj   +1 more source

Multitarget tracking using probability hypothesis density smoothing

, 2011
In general, for multitarget problems where the number of targets and their states are time varying, the optimal Bayesian multitarget tracking is computationally demanding.
Punithakumar, K., Kirubarajan, T., T. Lang, Lang, T., T. Kirubarajan, N. Nadarajah, K. Punithakumar, M. Mcdonald, Nadarajah, Nandakumaran, McDonald, M.   +9 more
core   +1 more source

Mitochondrial NADK2‐dependent NADPH controls tau oligomer uptake in human neurons

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Reduced brain energy metabolism, mitochondria dysfunction, and extracellular tau oligomer buildup characterize Alzheimer's disease (AD), but how these phenomena cooperatively promote neurodegeneration is poorly understood. We now report that tau oligomers (TauOs) pathologically coordinate mitochondrial metabolism with increased ...
Evelyn Pardo, Taylor Kim, Horst Wallrabe, Kristine E. Zengeler, Vijay Kumar Sagar, Garnett Mingledorff, Xuehan Sun, Ammasi Periasamy, John R. Lukens, George S. Bloom, Andrés Norambuena   +10 more
wiley   +1 more source

Synthesis of a C‐2 Functionalized l‐Iduronic Acid Derivative as a Candidate Pharmacological Chaperone for MPS II (Hunter Syndrome)

Chemistry – An Asian Journal, Volume 21, Issue 11, 15 June 2026.
A C‐2 functionalized l‐iduronic acid derivative was designed and synthesized as a candidate pharmacological chaperone for iduronate‐2‐sulfatase (IDS), the enzyme involved in the lysosomal storage disease MPS II (Hunter syndrome). The synthesis overcomes significant synthetic challenges associated with manipulations of L‐ido scaffolds.
Vaibhavi Nagendra, Shifaza Mohamed, Nicholas W. See, Norbert Wimmer, Daniel Neumann, Paul J. Trim, Marten Snel, Aidan J. Brock, Jack K. Clegg, Neha S. Gandhi, Kim M. Hemsley, Adeline A. Lau, Vito Ferro   +12 more
wiley   +1 more source

Quantification of the Eocene–Oligocene transition in the Zagros Foreland Basin: Palaeogeographic control on sequence architecture and tectonic signal preservation

The Depositional Record, Volume 12, Issue 3, June 2026.
New bio‐sequence framework for the Eocene–Oligocene transition in Zagros. Geochemical data validate basin depth control on SB1 vs. SB2 boundaries. SEM‐EDS analyses confirm subaerial exposure versus continuous deposition. Sensitivity analysis quantifies sub‐10% uncertainty in stratigraphic interpretations. Resolves the Pyrenean orogeny's variable impact
Sahar Rokni, Vahid Ahmadi, Seyed Hamid Vaziri, Ali Aghanabati, Pooria Kianoush   +4 more
wiley   +1 more source