Results 61 to 70 of about 5,444,685 (300)

EGO: a personalised multimedia management tool [PDF]

open access: yes, 2006
The problems of Content-Based Image Retrieval (CBIR) sys- tems can be attributed to the semantic gap between the low-level data representation and the high-level concepts the user associates with images, on the one hand, and the time-varying and often ...
Jose, J.M., Urban, J.
core   +1 more source

Radiative Cooling by Green(er) Solvents‐Upcycled Polyvinyl Chloride From Drug Blisters Waste

open access: yesAdvanced Optical Materials, EarlyView.
This study explores upcycling poly(vinyl chloride) (PVC) from used pharmaceutical blisters into sustainable radiative cooling materials. Using solvent separation and membrane fabrication, PVC was converted into white membranes paired with aluminum foil.
Andrea Lanfranchi   +2 more
wiley   +1 more source

A Generalized Diagonal Wythoff Nim

open access: yes, 2010
In this paper we study a family of 2-pile Take Away games, that we denote by Generalized Diagonal Wythoff Nim (GDWN). The story begins with 2-pile Nim whose sets of options and $P$-positions are $\{\{0,t\}\mid t\in \N\}$ and $\{(t,t)\mid t\in \M ...
Larsson, Urban
core   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

open access: yesAdvanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

The $\star$-operator and Invariant Subtraction Games

open access: yes, 2010
We study 2-player impartial games, so called \emph{invariant subtraction games}, of the type, given a set of allowed moves the players take turn in moving one single piece on a large Chess board towards the position $\boldsymbol 0$.
Larsson, Urban
core  

Third Parties and the Social Scaffolding of Forgiveness [PDF]

open access: yes, 2013
It is widely accepted that only the victim of a wrong can forgive that wrong. Several philosophers have recently defended “third-party forgiveness,” the scenario in which A, who is not the victim of a wrong in any sense, forgives B for a wrong B did to C.
Walker, Margaret Urban
core   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

open access: yesAdvanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

The Rural and the Urban: A Spatial Reading of Selected Poems by Stephen Spender and Badr Shakir al-Sayyab

open access: yesNalans
The countryside and the city are considered among the most frequently tackled themes in British and Arabic poetry. They are viewed as two inseparable aspects of man’s life in the modern age.
Haitham K. Al-Zubbaidi, Khalid Qais Abd
doaj   +1 more source

Hybrid model to optimize object-based land cover classification by meta-heuristic algorithm: an example for supporting urban management in Ha Noi, Viet Nam

open access: yesInternational Journal of Digital Earth, 2019
This study proposed a novel object-based hybrid classification model named GMNN that combines Grasshopper Optimization Algorithm (GOA) and the multiple-class Neural network (MNN) for urban pattern detection in Hanoi, Vietnam.
Quang-Thanh Bui   +7 more
doaj   +1 more source

Ovarian Matrisome Dynamics and αvβ3‐Mediated Regulation in Early Follicular Development

open access: yesAdvanced Science, EarlyView.
The matrisome undergoes dynamic remodeling during early follicular development. Integrin αvβ3 mediates matrisome signals, regulating primordial follicle activation/atresia and secondary follicle growth via Hippo/mTOR pathways, with conserved roles in human ovaries, offering therapeutic targets for ovarian disorders.
Tong Wu   +12 more
wiley   +1 more source

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