Results 41 to 50 of about 704,600 (271)
Peptide‐based ligand antagonists block a Vibrio cholerae adhesin
FEBS Letters, EarlyView.The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang +9 more
wiley +1 more source
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
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 GlasnikThe 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
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Geodesy and CartographyThe 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
Correlation of coordinate transformation parameters
Geodesy and Geodynamics, 2012 Abstract:Coordinate transformation parameters between two spatial Cartesian coordinate systems can be solved from the positions of non-colinear corresponding points. Based on the characteristics of translation, rotation and zoom components of the transformation, the complete solution is divided into three steps.
Du Lan +3 more
openaire +2 more sources
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
A Novel Camera Calibration Method Based on Polar Coordinate. [PDF]
PLoS ONE, 2016 A novel calibration method based on polar coordinate is proposed. The world coordinates are expressed in the form of polar coordinates, which are converted to world coordinates in the calibration process.
Shaoyan Gai, Feipeng Da, Xu Fang
doaj +1 more source