Results 71 to 80 of about 300,939 (289)
The singularities as ontological limits of the general relativity [PDF]
, 2018 The singularities from the general relativity resulting by solving Einstein's equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity?
Sfetcu, Nicolae
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HYPERSURFACE EXCEPTIONAL SINGULARITIES [PDF]
International Journal of Mathematics, 2001 This paper studies hypersurface exceptional singularities in [Formula: see text] defined by non-degenerate function. For each canonical hypersurface singularity, there exists a weighted homogeneous singularity such that the former is exceptional if and only if the latter is exceptional.
Ishii, Shihoko, Prokhorov, Yuri
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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
Generalized Antiorthotomics of (n, m)-Cusp Curves
MathematicsIn optics, light rays emitted from a light source form a wavefront (orthotomic) upon reflection by a mirror. The mirror is referred to as an antiorthotomic of the orthotomic.
Qiming Zhao +3 more
doaj +1 more source
Optimal Shadowing Filter for a Positioning and Tracking Methodology with Limited Information
Sensors, 2019 Positioning and tracking a moving target from limited positional information is a frequently-encountered problem. For given noisy observations of the target’s position, one wants to estimate the true trajectory and reconstruct the full phase space ...
Ayham Zaitouny +2 more
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manuscripta mathematica, 2002 Comment: 11 pages, Latex, uses diagrams.tex of P. Taylor, see e.g. ftp://ftp.dante.de/pub/tex/macros/generic/diagrams/taylor/diagrams.tex.
Campana, Frédéric, Flenner, Hubert
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NAKED SINGULARITY EXPLOSION [PDF]
The Ninth Marcel Grossmann Meeting, 2000 6 pages, 3 figures, Accepted for Publication in Phys. Rev.
Harada, Tomohiro +2 more
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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 +2 more
wiley +1 more source
Singular graphene metasurfaces
EPJ Applied Metamaterials, 2019 The spatial tunability of the electron density in graphene enables the dynamic engineering of metasurfaces in the form of conductivity gratings, which can bridge the momentum gap between incident radiation and surface plasmons.
Galiffi Emanuele +2 more
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, 2009 The aim of this study was to establish the role played by anisotropic diffusion in (i) the number of filaments and epicardial phase singularities that sustain ventricular fibrillation in the heart, (ii) the lifetimes of filaments and phase singularities,
Clayton, R.H.
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