Results 41 to 50 of about 1,082,967 (295)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Noise-enhanced trapping in chaotic scattering [PDF]

, 2010
We show that noise enhances the trapping of trajectories in scattering systems. In fully chaotic systems, the decay rate can decrease with increasing noise due to a generic mismatch between the noiseless escape rate and the value predicted by the ...
Antonio Endler, E. Ott, Eduardo G. Altmann, P. Gaspard, T. Tél, W. Feller   +5 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Phase Ordering in Chaotic Map Lattices with Additive Noise

, 2000
We present some result about phase separation in coupled map lattices with additive noise. We show that additive noise acts as an ordering agent in this class of systems.
Amar, Angelini, Armero, Aubry, Becker, Becker, Bray, Chaté, Garcia-Ojalvo, Garcia-Ojalvo, Garcia-Ojalvo, Garcia-Ojalvo, Gunton, Horsthemke, Hughes, Huse, Kockelkoren, Kockelkoren, Lemaitre, Leonardo Angelini, Losson, Lythe, Mario Pellicoro, Marko, Matsumoto, McKay, Park, Parrondo, Roland, Sebastiano Stramaglia, Sèpulchre, Van Den Broeck, Van Den Broeck, Van Den Broeck   +33 more
core   +1 more source

Urban Background Noise Mapping: The General Model [PDF]

Acta Acustica united with Acustica, 2014
Surveys show that inhabitants of dwellings exposed to high noise levels benefit from having access to a quiet side. However, current practice in noise prediction often underestimates the noise levels at a shielded façade. Multiple reflections between façades in street canyons and inner yards are commonly neglected and façades are approximated as ...
Wei, W., Botteldooren, D., Renterghem, T. van, Hornikx, M., Forssen, J., Salomons, E., Ogren, M.   +6 more
openaire   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Mapping Noise from Motorised Transport in the Context of Infrastructure Management

Applied Sciences
Noise pollution presents significant challenges for urban infrastructure management, highlighting the need for practical assessment tools such as noise maps.
Piotr Jaskowski, Marcin Koniak, Jonas Matijošius, Artūras Kilikevičius   +3 more
doaj   +1 more source

SoundCompass: A Distributed MEMS Microphone Array-Based Sensor for Sound Source Localization

Sensors, 2014
Sound source localization is a well-researched subject with applications ranging from localizing sniper fire in urban battlefields to cataloging wildlife in rural areas.
Jelmer Tiete, Federico Domínguez, Bruno da Silva, Laurent Segers, Kris Steenhaut, Abdellah Touhafi   +5 more
doaj   +1 more source

Quantifying the Effects of Ground Truth Annotation Quality on Object Detection and Instance Segmentation Performance

IEEE Access, 2023
Fully-supervised object detection and instance segmentation models have accomplished notable results on large-scale computer vision benchmark datasets. However, fully-supervised machine learning algorithms’ performances are immensely dependent on ...
Cathaoir Agnew, Ciaran Eising, Patrick Denny, Anthony Scanlan, Pepijn Van De Ven, Eoin M. Grua   +5 more
doaj   +1 more source

RSB Decoupling Property of MAP Estimators

, 2016
The large-system decoupling property of a MAP estimator is studied when it estimates the i.i.d. vector $\boldsymbol{x}$ from the observation $\boldsymbol{y}=\mathbf{A}\boldsymbol{x}+\boldsymbol{z}$ with $\mathbf{A}$ being chosen from a wide range of ...
Bereyhi, Ali, Müller, Ralf R., Schulz-Baldes, Hermann   +2 more
core   +1 more source