Results 41 to 50 of about 708,405 (285)

Implicit Guidance Equations in Polar Coordinates [PDF]

فصلنامه علوم و فناوری فضایی, 2015
In this paper, implicit guidance equations are derived in polar coordinates. Depending on applications, implicit guidance equations in polar coordinates may be preferred over cartesian coordinates.
Seyed Hamid Jalali Naini
doaj  

From angle-action to Cartesian coordinates: A key transformation for molecular dynamics

, 2008
The transformation from angle-action variables to Cartesian coordinates is a crucial step of the (semi) classical description of bimolecular collisions and photo-fragmentations.
Althorpe S., Child M. S., Goldstein H., J. Rubayo-Soneira, J.-C. Rayez, L. Bonnet, M. L. González-Martínez, P. Larrégaray, Whittaker E. T.   +8 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

A comparison of transformation models between geodetic reference frames: case study in Illizi region (Algeria)

Geodesy and Cartography
The Illizi region is an important petroleum zone in Algeria, where various seismic surveys have been conducted. The merging of adjacent surveys is not possible due to incompatible data linked to the geodetic networks.
Mahdi Haddad, Mounia Gahlouz
doaj   +1 more source

Deviationless geodetic transformations [PDF]

Acta Montanistica Slovaca, 1997
In a geodetic transformation of two networks (old, new), coordinate deviations come into being at the identical points and the transformated coordinates have to be corrected. A new deviationless method of Helmert and affine transformation is presented in
Sütti Juraj
doaj  

A weighted adjustment of a similarity transformation between two point sets containing errors

Journal of Geodetic Science, 2017
For an adjustment of a similarity transformation, it is often appropriate to consider that both the source and the target coordinates of the transformation are affected by errors.
Marx C.
doaj   +1 more source

COORDINATE TRANSFORMATION USING THE LEAST SQUARES METHOD: A CASE STUDY ON TRABZON, TURKEY [PDF]

Geodetski Glasnik
The ED50 datum uses the Hayford ellipsoid and the Greenwich meridian as the prime meridian. In Turkey, the ED50 datum with the Hayford ellipsoid was used until 2001, after which the ITRF datum with the GRS80 ellipsoid became the standard.
Nazan Yilmaz
doaj   +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

Extended Fermi coordinates

, 2010
We extend the notion of Fermi coordinates to a generalized definition in which the highest orders are described by arbitrary functions. From this definition rises a formalism that naturally gives coordinate transformation formulae.
B. Coll, B. Linet, B. Léauté, C. Chicone, C. Chicone, C.W. Misner, D. Bini, E. Díaz-Miguel, E. Fermi, E. Fermi, E. Fermi, F.K. Manasse, J.L. Synge, K.P. Marzlin, L. Ó’Raifeartaigh, M. Ishii, M.C. Angonin, Marie-Christine Angonin, N. Ashby, N. Ashby, P. Collas, P. Delva, P. Tourrenc, Pacôme Delva, T. Levi-Civita, W.Q. Li, W.T. Ni, Y. Kojima   +27 more
core   +3 more sources

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