Results 61 to 70 of about 704,600 (271)

Harmonic coordinates in the string and membrane equations

, 2010
In this note, we first show that the solutions to Cauchy problems for two versions of relativistic string and membrane equations are diffeomorphic. Then we investigate the coordinates transformation presented in Ref. [9] (see (2.20) in Ref.
Chun-Lei He, Eisenhart L. P., Shou-Jun Huang   +2 more
core   +1 more source

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

FEBS 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, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Transformation of Coordinates of Boundary Points of Neighboring Mining Areas Using an Authorial Procedure Based on the Method of Independent Models—A Case Study

Applied Sciences
In order to integrate data relevant to decision making, especially for the development of post-mining areas, it is important to ensure their uniform spatial reference.
Monika Żogała, Violetta Sokoła-Szewioła, Marian Poniewiera   +2 more
doaj   +1 more source

Positioning systems in Minkowski space-time: Bifurcation problem and observational data

, 2013
In the framework of relativistic positioning systems in Minkowski space-time, the determination of the inertial coordinates of a user involves the {\em bifurcation problem} (which is the indeterminate location of a pair of different events receiving the ...
B. Coll, B. Coll, Bartolomé Coll, E. W. Grafarend, G. Strang, J. M. Pozo, Joan Josep Ferrando, Juan Antonio Morales-Lladosa   +7 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Modeling Flexible Bodies in Multibody Systems in Joint-Coordinates Formulation Using Spatial Algebra

Advances in Mechanical Engineering, 2014
This paper presents an efficient approach of using spatial algebra operator to formulate the kinematic and dynamic equations for developing capabilities to model flexible bodies within general purpose multibody dynamics solver.
Mohamed A. Omar
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Calculation of A Three-Dimensional Coordinates of A Manipulator End Effector in A Compound Frames

Diyala Journal of Engineering Sciences, 2013
A theoretical and experimental study of measurement of three dimensional Cartesian coordinates of the end effecter of a robotic manipulator with three different frames each one known relative to the other was carried out in this research.The aim of this
Emad K. Hussein
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Various parameterizations of “latitude” equation – Cartesian to geodetic coordinates transformation

Journal of Geodetic Science, 2013
The paper presents a solution to one of the basic problems of computational geodesy - conversion between Cartesian and geodetic coordinates on a biaxial ellipsoid. The solution is based on what is known in the literature as “latitude equation”.
Ligas M.
doaj   +1 more source