Results 41 to 50 of about 9,021,127 (291)

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

open access: yesFEBS 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

Constructing Integrable Third Order Systems:The Gambier Approach

open access: yes, 1997
We present a systematic construction of integrable third order systems based on the coupling of an integrable second order equation and a Riccati equation. This approach is the extension of the Gambier method that led to the equation that bears his name.
A Ramani   +9 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS 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

Le couvent de Beaujeu : une approche du tiers-ordre franciscain à travers l’étude d’un « petit » couvent

open access: yesChrétiens et Sociétés, 2022
The study of the franciscan third order, also known as “Picpus” has been widely neglected among the regular orders of beggars in France. A few studies, mostly monographs on the scale of a single convent constitute most of the scientific literature ...
Matthieu Cathalan
doaj   +1 more source

Third order digital-to-analog converter [PDF]

open access: yes, 1972
System, consisting of sample and hold digital-to-analog converter, clock circuit, sample delay circuit, initial condition circuit and interpolator circuit, improves accuracy of reconstructed analog signal without increasing sample ...
Dotson, W. P.
core   +1 more source

SUSY Intertwining Relations of Third Order in Derivatives

open access: yes, 2004
The general solution of the intertwining relations between a pair of Schr\"odinger Hamiltonians by the supercharges of third order in derivatives is obtained. The solution is expressed in terms of one arbitrary function.
Andrianov   +39 more
core   +2 more sources

THIRD-ORDER EFFICIENCY IMPLIES FOURTH-ORDER EFFICIENCY

open access: yesJOURNAL OF THE JAPAN STATISTICAL SOCIETY, 1996
Summary: \textit{K. Takeuchi} [Asymptotic theory of statistical inference. (1974)], \textit{K. Takeuchi} and \textit{M. Akahira} [Lect. Notes Math. 550, 604-638 (1976; Zbl 0398.62027)] and \textit{J. Pfanzagl} [Contributions to Statistics, Jaroslav Hajek Mem.
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

The Implementation of Block Algorithm for the Solution of Third Order Oscillatory Problems

open access: yesCumhuriyet Science Journal
The implementation of block algorithm for the direct solution of third order oscillatory problems of the form has been studied in this paper. The methodology is carried out using the procedure of interpolation and collocation.
Taiye Oyedepo   +3 more
doaj   +1 more source

Comparison of properties of solutions of differential equations and recurrence equations with the same characteristic equation (on example of third order linear equations with constant coefficients) [PDF]

open access: yesOpuscula Mathematica, 2006
Third order linear homogeneous differential and recurrence equations with constant coefficients are considered. We take the both equations with the same characteristic equation.
Jarosław Mikołajski, Ewa Schmeidel
doaj  

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