Results 31 to 40 of about 482,367 (262)

Automatic Image Registration Provides Superior Accuracy Compared with Surface Matching in Cranial Navigation

open access: yesSensors
Objective: The precision of neuronavigation systems relies on the correct registration of the patient’s position in space and aligning it with radiological 3D imaging data.
Henrik Frisk   +11 more
doaj   +1 more source

Frames of Reference in Social Cognition

open access: yesQuarterly Journal of Experimental Psychology, 2008
How is mindreading affected by social context? It is often implicitly assumed that there is one single way to understand others, whatever the situation or the identity of the person. In contrast, I emphasize the duality of functions of mindreading depending on the context (social interaction and social observation), as well as the duality of social ...
openaire   +4 more sources

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Balinese Frame of Reference

open access: yesJurnal Kajian Bali (Journal of Bali Studies), 2016
: Balinese Frame of Reference. Wassmann and Dasen (1998) did a study on the acquisition of Balinese frames of reference. They pointed out that, in addition to the dominant use of absolute system, the use of relative system was also observed. This article
I Nyoman Aryawibawa
doaj  

Roles of the Retinotopic and Environmental Frames of Reference on Vection

open access: yesFrontiers in Virtual Reality, 2020
Humans perceive self-motion using multisensory information, while vision has a dominant role as is utilized in virtual reality (VR) technologies. Previous studies reported that visual motion presented in the lower visual field (LoVF) induces stronger ...
Kanon Fujimoto   +2 more
doaj   +1 more source

The Effects of the IERS Conventions (2010) on High Precision Orbit Propagation [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
The Earth is not perfectly spherical and its rotational axis is not fixed in space, and these geophysical and kinematic irregularities work as dominant perturbations in satellite orbit propagation.
Kyoung-Min Roh, Byung-Kyu Choi
doaj   +1 more source

Egocentric and Allocentric Reference Frames Can Flexibly Support Contextual Cueing

open access: yesFrontiers in Psychology, 2021
We investigated if contextual cueing can be guided by egocentric and allocentric reference frames. Combinations of search configurations and external frame orientations were learned during a training phase.
Lei Zheng   +4 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Reference-frame-independent quantum metrology

open access: yesPhysical Review Research
How can we perform a metrological task if only limited control over a quantum system is given? Here, we present systematic methods for conducting nonlinear quantum metrology in scenarios lacking a common reference frame.
Satoya Imai, Otfried Gühne, Géza Tóth
doaj   +1 more source

Home - About - Disclaimer - Privacy