Results 81 to 90 of about 2,241,835 (296)

Extraction and Recognition of Periodically Deforming Objects by Continuous, Spatio-temporal Shape Description.

open access: yes, 2004
We demonstrate a novel approach to modelling arbitrary temporally-deforming objects using spatio-temporal Fourier descriptors. This is a continuous boundary descriptor, which can handle shapes that vary in a periodic manner (such as a walking subject ...
Mowbray, S. D.   +3 more
core   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Laser-based size and pose estimation of moving objects by multiple mobile robots

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper presents laser-based tracking of moving objects by a group of mobile robots located near one another. Each robot detects moving objects such as people, cars, and bicycles in its own laser-scanned images using a binarized occupancy-grid-based ...
Ryunosuke IZUMI   +3 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Modeling and Querying Moving Objects with Social Relationships

open access: yesISPRS International Journal of Geo-Information, 2016
Current moving-object database (MOD) systems focus on management of movement data, but pay less attention to modelling social relationships between moving objects and spatial-temporal trajectories in an integrated manner.
Hengcai Zhang, Feng Lu, Jianqiu Xu
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

UTR*-Tree: An Uncertain Trajectories Model for Indexing Moving Objects in Constrained Networks

open access: yes工程科学与技术, 2010
:A novel index structure named UTR*-Tree was proposed for indexing uncertain trajectories.This index combined the dynamic and the static storage structure to manage the moving objects, which treated the constrained networks (where roads nearly keep ...
Li Hongjun, Tang Changjie, Qiao Shaojie
doaj  

Temporal Order Judgments of Two Moving Objects

open access: yesi-Perception, 2011
When we perceive two objects that are moving toward a target and judge which object reached first, how accurate is the temporal order judgment? In order to investigate this, the present study examined a situation in which two objects move in the ...
Tadayuki Tayama, Muneo Mitsuboshi
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

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