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  1. 801

    Numerical Modeling and GNSS Observations of Ionospheric Depletions Due To a Small‐Lift Launch Vehicle by G. W. Bowden, M. Brown

    Published 2023-09-01
    “…Abstract Space launches produce ionospheric disturbances which can be observed through measurements such as Global Navigation Satellite System signal delays. Here we report observations and numerical simulations of the ionospheric depletion due to a Small‐Lift Launch Vehicle. …”
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    Article
  2. 802

    Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex by Xiaoyang Long, Daniel Bush, Bin Deng, Neil Burgess, Sheng-Jia Zhang

    Published 2025-01-01
    “…Abstract Successful navigation relies on reciprocal transformations between spatial representations in world-centered (allocentric) and self-centered (egocentric) frames of reference. …”
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  3. 803

    Towards an optimization of catheter guidance in vascular surgery: A comparative analysis of the contribution of reinforcement learning by Cheima Bouden

    Published 2024-01-01
    “…Methods: This study evaluates the efficacy of advanced reinforcement learning (RL) techniques to enhance catheter navigation. We compare different RL approaches within simulated vascular environments, focusing on their success rates, operational efficiency, and adaptability to varied clinical scenarios. …”
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  4. 804

    Prefrontal cortex synchronization with the hippocampus and parietal cortex is strategy-dependent during spatial learning by Francisca García, Maria-José Torres, Lorena Chacana-Véliz, Nelson Espinosa, Wael El-Deredy, Pablo Fuentealba, Ignacio Negrón-Oyarzo

    Published 2025-01-01
    “…Here we show that during navigation trials, mice displayed two sequential behavioral stages: searching and exploration. …”
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  5. 805

    A Fully Controllable UAV Using Curriculum Learning and Goal-Conditioned Reinforcement Learning: From Straight Forward to Round Trip Missions by Hyeonmin Kim, Jongkwan Choi, Hyungrok Do, Gyeong Taek Lee

    Published 2024-12-01
    “…Building upon these fundamental challenges, an additional need exists for agents that can handle diverse missions like round-trip navigation without requiring retraining for each specific task. …”
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  6. 806

    Dans l’ordinateur d’un médiéviste. Peut-on utiliser un logiciel de personal knowledge management pour appliquer une méthode de recherche historique ? by Simon Rozanès

    Published 2023-12-01
    “…Obsidian allows one to navigate through one’s own analyses in a powerful, rapid and easy manner. …”
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  7. 807
  8. 808

    Application of a Multi‐Layer Artificial Neural Network in a 3‐D Global Electron Density Model Using the Long‐Term Observations of COSMIC, Fengyun‐3C, and Digisonde by Wang Li, Dongsheng Zhao, Changyong He, Yi Shen, Andong Hu, Kefei Zhang

    Published 2021-03-01
    “…Abstract The ionosphere plays an important role in satellite navigation, radio communication, and space weather prediction. …”
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    Article
  9. 809

    Investigation of the Feasibility and Safety of a Highly Intensive Penetration Technique for Recanalization in Severe Calcified Femoropopliteal Occlusive Lesions: A Retrospective Ob... by Shinsuke Mori, Keisuke Hirano, Yusuke Setonaga, Toshihiko Kishida, Tomoya Fukagawa, Kohei Yamaguchi, Masafumi Mizusawa, Masakazu Tsutsumi, Norihiro Kobayashi, Yoshiaki Ito

    Published 2025-01-01
    “…ABSTRACT Background and Aims When dealing with severely calcified lesions in endovascular therapy (EVT) for lower extremity artery disease (LEAD), navigating through severely calcified chronic total occlusion (CTO) using hard‐tip guidewires can be challenging. …”
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  10. 810

    Yacht Design and Maritime Landscape: Continuity in artisan Culture by Eleonora Trivellin

    Published 2017-12-01
    “…The paper highlights the matrices of Mediterranean navigation and the relationship with artisan work processes, as well as how they have continued to characterize the nautical field and how research has identified themes which today seem to be able to characterise a culturally and economically important sector such as that of the production of sports yachts.…”
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  11. 811

    CLASS: A Framework for Strategic Thinking and Actions during Academic and Workplace Transitions by Adam Denney, Sarah C. Williams, Danielle Dietz, Alysha Gray

    Published 2024-12-01
    “… The CLASS framework is a versatile tool college students can use when learning how to proactively and intentionally navigate new educational and work environments. It provides a concrete strategy for strategic thought processes, routines, and dialogues that can be adapted to fit different student support models. …”
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  12. 812

    Filtered Medial Surface Based Approach for 3D Collision-Free Path Planning Problem by Karima Benzaid, Romain Marie, Noura Mansouri, Ouiddad Labbani-Igbida

    Published 2018-01-01
    “…Given a 3D grid representation of the environment, the Generalized Voronoi Graph (GVG) is first approximated using a filtered medial surface (FMS) algorithm on the corresponding navigable space. Based on an efficient pruning criterion, the produced FMS excludes GVG portions corresponding to narrow passages unfitting safe UAV navigation constraints, and thus it defines a set of guaranteed safe trajectories within the environment. …”
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  13. 813

    Positioning Performance of Power and Manual Drivers in Posterior Spinal Fusion Procedures by J. Micah Prendergast, Alexander C. Perry, Vikas V. Patel, Emily M. Lindley, Mark E. Rentschler

    Published 2017-01-01
    “…A total of 100 screws (64 manual and 36 power driven), all placed utilizing a surgical navigation system, were analyzed and compared. Final screw placement was compared to initial surgical plans using the navigation system, and the final screw locations were analyzed on the basis of angular deviation from these planned trajectories as well as screw translation within a critical reference plane. …”
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  14. 814

    Technique of sacrectomy at the combined operations for locally advanced rectal cancer by P. V. Tsarkov, S. K. Efetov, I. A. Tulina, L. V. Sidorova

    Published 2018-08-01
    “…To develop method for sacrectomy border location for the correct intraoperative navigation. Results. The distal sacrectomy technique at rectal cancer is presented in details. …”
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  15. 815

    GNSS spoofing in conflict zones disrupts wildlife tracking and hampers research and conservation efforts by Frédéric Jiguet, Asaf Mayrose, Markus Piha, Ron Efrat, Tuomas Seimola, Nir Sapir, Sami Timonen, Yohay Wasserlauf, Aurélien Besnard, Pierrick Bocher, Andrea Kölzsch, Aleksi Lehikoinen, Anne-Christine Monnet, Petr Procházka, Yoav Perlman

    Published 2025-01-01
    “…In war and conflict zones, the jamming of Global Navigation Satellite System (GNNS) signals by military forces disrupts the tracking of tagged animals, and has increased in frequency following the recent escalation of conflicts in Eastern Europe and the Middle East. …”
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  16. 816

    FOREIGN POLICIES AND DIPLOMACY OF AFRICAN STATES IN AN ERA OF GLOBALIZATION: CHALLENGES AND PROSPECTS by PAUL NWALA

    Published 2024-06-01
    “…It also examines the strategies employed by these nations in navigating a globalized world, emphasizing the role of diplomacy as a crucial tool for addressing shared challenges and advancing national interests. …”
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  17. 817
  18. 818
  19. 819

    Toward satellite-terrestrial integration: 6G cloud-fog collaborative self-organizing network by PENG Mugen, YUAN Shuo

    Published 2024-03-01
    “…In addition, key technologies such as integrated communication, sensing, navigation, and control waveform, as well as resource management based on satellite onboard fog processing, along with mobility management and intelligent information processing based on cloud-fog collaboration, were elaborated in detail. …”
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  20. 820

    Breaking Undular and Breaking Surges Advancing in Still Water by Feidong Zheng, Xueyi Li

    Published 2023-01-01
    “…The propagation of secondary surges can lead to unexpected interaction events with navigation ships and downstream hydraulic structures; hence, they may cause navigation accidents and structural damage. …”
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