Results 41 to 50 of about 302,123 (302)

An Effective GNSS/PDR Fusion Positioning Algorithm on Smartphones for Challenging Scenarios

Sensors
The location-based smartphone service brings new development opportunities for seamless indoor/outdoor positioning. However, in complex scenarios such as cities, tunnels, overpasses, forests, etc., using only GNSS on smartphones cannot provide stable and
Jingkui Zhang, Baoguo Yu, Yuxiang Ge, Jingxiang Gao, Chuanzhen Sheng   +4 more
doaj   +1 more source

Impact of Navigation Aid and Spatial Ability Skills on Wayfinding Performance and Workload in Indoor-Outdoor Campus Navigation: Challenges and Design

Applied Sciences, 2023
Wayfinding is important for everyone on a university campus to understand where they are and get to where they want to go to attend a meeting or a class.
Rabail Tahir, John Krogstie
doaj   +1 more source

Closed-Loop Targeted Memory Reactivation during Sleep Improves Spatial Navigation [PDF]

, 2018
Sounds associated with newly learned information that are replayed during non-rapid eye movement (NREM) sleep can improve recall in simple tasks. The mechanism for this improvement is presumed to be reactivation of the newly learned memory during sleep ...
Diana M. Armstrong, Lexus T. Hernandez, Mario Aguilar, Michael P. Weisend, Nicola Cellini, Nicola Cellini, Patrick M. Connolly, Renee E. Shimizu, Rolando Estrada, Sara C. Mednick, Stephen B. Simons   +10 more
core   +2 more sources

A consistent map in the medial entorhinal cortex supports spatial memory

Nature Communications
The medial entorhinal cortex (MEC) is hypothesized to function as a cognitive map for memory-guided navigation. How this map develops during learning and influences memory remains unclear. By imaging MEC calcium dynamics while mice successfully learned a
Taylor J. Malone, Nai-Wen Tien, Yan Ma, Lian Cui, Shangru Lyu, Garret Wang, Duc Nguyen, Kai Zhang, Maxym V. Myroshnychenko, Jean Tyan, Joshua A. Gordon, David A. Kupferschmidt, Yi Gu   +12 more
doaj   +1 more source

Spatial navigation ability is associated with the assessment of smoothness of driving during changing lanes in older drivers

Journal of Physiological Anthropology, 2020
Background Age-related changes affect driving ability, including the smoothness of driving. This operation requires the use of both allocentric strategies (based on world-centered representations) and egocentric strategies (based on self-centered ...
Masafumi Kunishige, Hideki Miyaguchi, Hiroshi Fukuda, Tadayuki Iida, Kawabata Nami, Chinami Ishizuki   +5 more
doaj   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source

Spatial navigation in young versus older adults

Frontiers in Aging Neuroscience, 2013
Older age is associated with changes in the brain, including the medial temporal lobe, which may result in mild spatial navigation deficits, especially in allocentric navigation.
Ivana eGazova, Ivana eGazova, Jan eLaczó, Jan eLaczó, Eva eRubinova, Ivana eMokrisova, Ivana eMokrisova, Eva eHyncicova, Ross eAndel, Ross eAndel, Martin eVyhnalek, Martin eVyhnalek, Katerina eSheardova, Elizabeth J. Coulson, Jakub eHort, Jakub eHort   +15 more
doaj   +1 more source

The Effects of Finger-Walking in Place (FWIP) on Spatial Knowledge Acquisition in Virtual Environments [PDF]

, 2009
Spatial knowledge, necessary for efficient navigation, comprises route knowledge (memory of landmarks along a route) and survey knowledge (overall representation like a map).
Gracanin, Denis, Kim, Ji-Sun, Quek, Francis   +2 more
core   +1 more source

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

Molecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta, Yang Song, Madeleine Ndahayo, Anirudh Saxena, Theresa Guo, Dylan Z. Kelley, Jessica Gore, Andrew Hennigan, Alexa Anderson, John C. Papadimitriou, Daria A. Gaykalova   +10 more
wiley   +1 more source

Neural Approach to Coordinate Transformation for LiDAR–Camera Data Fusion in Coastal Observation

Sensors
The paper presents research related to coastal observation using a camera and LiDAR (Light Detection and Ranging) mounted on an unmanned surface vehicle (USV).
Ilona Garczyńska-Cyprysiak, Witold Kazimierski, Marta Włodarczyk-Sielicka   +2 more
doaj   +1 more source