Results 61 to 70 of about 1,914,645 (291)

Metastability of Certain Intermittent Maps [PDF]

, 2011
We study an intermittent map which has exactly two ergodic invariant densities. The densities are supported on two subintervals with a common boundary point.
Bahsoun, Wael, Vaienti, Sandro
core   +6 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Research on Rapeseed Seedling Counting Based on an Improved Density Estimation Method

Agriculture
The identification of seedling numbers is directly related to the acquisition of seedling information, such as survival rate and emergence rate. It indirectly affects detection efficiency and yield evaluation.
Qi Wang, Chunpeng Li, Lili Huang, Liqing Chen, Quan Zheng, Lichao Liu   +5 more
doaj   +1 more source

Affine Maps of the Polarization Vector for Quantum Systems of Arbitrary Dimension

, 2010
The operator-sum decomposition (OS) of a mapping from one density matrix to another has many applications in quantum information science. To this mapping there corresponds an affine map which provides a geometric description of the density matrix in ...
Bishop, C. Allen, Byrd, Mark S., Ou, Yong-Cheng   +2 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Simplification of three-dimensional density maps [PDF]

IEEE Transactions on Visualization and Computer Graphics, 2004
We consider scientific data sets that describe density functions over three-dimensional geometric domains. Such data sets are often large and coarsened representations are needed for visualization and analysis. Assuming a tetrahedral mesh representation, we construct such representations with a simplification algorithm that combines three goals: the ...
Natarajan, Vijay, Edelsbrunner, Herbert
openaire   +3 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

FDCNet: Frontend-Backend Fusion Dilated Network Through Channel-Attention Mechanism

Applied Sciences, 2019
Crowd counting has attracted much attention in computer vision owing to its fundamental contribution in public security. But due to occlusions, perspective distortions, scale variations, and background interference it faces a great challenge.
Yuqian Zhang, Guohui Li, Jun Lei, Jiayu He   +3 more
doaj   +1 more source

Searching for galaxy clusters using the aperture mass statistics in 50 VLT fields

, 2005
Application of the aperture mass (Map-) statistics provides a weak lensing method for the detection of cluster-sized dark matter halos. We present a new aperture filter function and maximise the effectiveness of the Map-statistics to detect cluster-sized
Erben, T., Hetterscheidt, M., Maoli, R., Mellier, Y., Schneider, P., Van Waerbeke, L.   +5 more
core   +3 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source