Results 51 to 60 of about 5,511,969 (335)

A Novel Method for Intrinsic and Extrinsic Parameters Estimation by Solving Perspective-Three-Point Problem with Known Camera Position

open access: yesApplied Sciences, 2021
The aim of the perspective-three-point (P3P) problem is to estimate extrinsic parameters of a camera from three 2D–3D point correspondences, including the orientation and position information.
Kai Guo, Hu Ye, Junhao Gu, Honglin Chen
doaj   +1 more source

Non-social human beings in the original position [PDF]

open access: yes, 2016
This paper argues that Rawls must commit himself to non-social human beings to defend his original position ...
Edward, Terence Rajivan
core  

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Revisiting the displacement operator for quantum systems with position-dependent mass

open access: yes, 2012
Recently R. N. Costa Filho et al. (PRA 84, 050102(R) (2011)) have introduced a position dependent infinitesimal translation operator which corresponds to a position dependent linear momentum and consequently to a position dependent effective mass quantum
P. Ring, S. Habib Mazharimousavi
core   +1 more source

Ecological Invasion, Roughened Fronts, and a Competitor's Extreme Advance: Integrating Stochastic Spatial-Growth Models [PDF]

open access: yes, 2009
Both community ecology and conservation biology seek further understanding of factors governing the advance of an invasive species. We model biological invasion as an individual-based, stochastic process on a two-dimensional landscape.
A. Allstadt   +122 more
core   +1 more source

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

Anatomical landmark for medialized patellar component in TKA

open access: yesJournal of Joint Surgery and Research
Purpose: The aim of this study was to show a concrete setting landmark in two component types of round and anatomical oval shapes using three-dimensional (3D) simulation analyses in total knee arthroplasty (TKA).
Ryosuke Tsurui   +7 more
doaj   +1 more source

An Improved Character Recognition Framework for Containers Based on DETR Algorithm

open access: yesSensors, 2021
An improved DETR (detection with transformers) object detection framework is proposed to realize accurate detection and recognition of characters on shipping containers.
Xiaofang Zhao   +3 more
doaj   +1 more source

Defense of Rawls: A Reply to Brock [PDF]

open access: yes, 2007
Cosmopolitans like Gillian Brock, Charles Beitz, and Thomas Pogge argue that the principles of justice selected and arranged in lexical priority in Rawls’ first original position would—and should for the same reasons as in the first ...
Fryfogle, Paul
core  

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