Results 21 to 30 of about 77,814,939 (211)

Exploiting semantic information in a spiking neural SLAM system

Frontiers in Neuroscience, 2023
To navigate in new environments, an animal must be able to keep track of its position while simultaneously creating and updating an internal map of features in the environment, a problem formulated as simultaneous localization and mapping (SLAM) in the ...
Nicole Sandra-Yaffa Dumont, P. Michael Furlong, Jeff Orchard, Chris Eliasmith   +3 more
doaj   +1 more source

Altered Hippocampal-Prefrontal Neural Dynamics in Mouse Models of Down Syndrome

Cell Reports, 2020
Summary: Altered neural dynamics in the medial prefrontal cortex (mPFC) and hippocampus may contribute to cognitive impairments in the complex chromosomal disorder Down syndrome (DS). Here, we demonstrate non-overlapping behavioral differences associated
Pishan Chang, Daniel Bush, Stephanie Schorge, Mark Good, Tara Canonica, Nathanael Shing, Suzanna Noy, Frances K. Wiseman, Neil Burgess, Victor L.J. Tybulewicz, Matthew C. Walker, Elizabeth M.C. Fisher   +11 more
doaj   +1 more source

Synchronization of fractional–order discrete–time chaotic systems by an exact delayed state reconstructor: Application to secure communication

International Journal of Applied Mathematics and Computer Science, 2019
This paper deals with the synchronization of fractional-order chaotic discrete-time systems. First, some new concepts regarding the output-memory observability of non-linear fractional-order discrete-time systems are developed.
Djennoune Said, Bettayeb Maamar, Al-Saggaf Ubaid Muhsen   +2 more
doaj   +1 more source

Driven Disordered Systems Approach to Biological Evolution in Changing Environments

Physical Review X, 2022
Biological evolution of a population is governed by the fitness landscape, which is a map from genotype to fitness. However, a fitness landscape depends on the organism’s environment, and evolution in changing environments is still poorly understood.
Suman G. Das, Joachim Krug, Muhittin Mungan   +2 more
doaj   +1 more source

Toward a memory model for autonomous topological mapping and navigation: The case of binary sensors and discrete actions

2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2012
We propose a self-organizing database for perceptual experience capable of supporting autonomous goal-directed planning. The main contributions are: (i) a formal demonstration that the database is complex enough in principle to represent the homotopy type of the sensed environment; (ii) some initial steps toward a formal demonstration that the database
Dan P. Guralnik, Daniel E. Koditschek
openaire   +2 more sources

Investigation of the Effect of Laser Fluence on Microstructure and Martensitic Transformation for Realizing Functionally Graded NiTi Shape Memory Alloy via Laser Powder Bed Fusion

Applied Sciences, 2023
Nowadays, additive manufacturing (AM) of NiTi shape memory alloy is a challenging topic for the realization of 3D functional parts. Particularly, Laser Powder Bed Fusion (LPBF) of NiTi powder is one of the most challenging processes belonging to AM ...
Paola Bassani, Jacopo Fiocchi, Ausonio Tuissi, Carlo Alberto Biffi   +3 more
doaj   +1 more source

Stability and synchronization of discrete-time Markovian jumping neural networks with mixed mode-dependent time delays [PDF]

, 2009
Copyright [2009] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services.
Liu, Y, Liu, X, Wang, Z, Liang, J, Liu, Xiaohui., J Liang (7713770), Wang, Zidong., Yurong Liu (9814022), Z Wang (81545), X Liu (7756691), Liang, Jinling., Liu, Yurong.   +11 more
core   +1 more source

Prehensile and Non-Prehensile Robotic Pick-and-Place of Objects in Clutter Using Deep Reinforcement Learning

Sensors, 2023
In this study, we develop a framework for an intelligent and self-supervised industrial pick-and-place operation for cluttered environments. Our target is to have the agent learn to perform prehensile and non-prehensile robotic manipulations to improve ...
Muhammad Babar Imtiaz, Yuansong Qiao, Brian Lee   +2 more
doaj   +1 more source

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

FEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim, Thi Thanh Mai Tran, Nakyung Kang, Min‐Woo Lee, Mihye Lee   +4 more
wiley   +1 more source

Spatial and single‐nuclei transcriptomics reveals idiosyncratic and generic patterns in papillary and anaplastic thyroid cancers

Molecular Oncology, EarlyView.
Matched spatial transcriptomics and single‐nuclei RNA‐seq were generated for anaplastic and BRAFV600E papillary thyroid cancers revealing generic and tumor‐specific states occurring in cancer cells and in the tumor microenvironment. In this context, cancer dedifferentiation mirrored organoid maturation through ordered thyroid marker gain/loss ...
Adrien Tourneur, Joel Rodrigues Vitória, Manuel Saiselet, Ligia Craciun, Denis Larsimont, Anne Lefort, Frédérick Libert, Carine Maenhaut, Sabine Costagliola, Maxime Tarabichi, Mirian Romitti, Vincent Detours   +11 more
wiley   +1 more source