Showing 201 - 220 results of 264 for search '"hummingbird"', query time: 0.08s Refine Results
  1. 201
  2. 202

    Generalism drives abundance: A computational causal discovery approach by Chuliang Song, Benno I. Simmons, Marie-Josée Fortin, Andrew Gonzalez

    Published 2022-09-01
    “…Contrary to previous work, all three independent methods strongly indicate that generalism drives abundance when applied to datasets on plant-hummingbird communities and reef fishes. Furthermore, we find that selection processes are more important than drift processes in structuring multispecies systems when the environment is variable. …”
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  3. 203

    Antenna Pattern Calibration Method for Phased Array of High-Frequency Surface Wave Radar Based on First-Order Sea Clutter by Hongbo Li, Aijun Liu, Qiang Yang, Changjun Yu, Zhe Lyv

    Published 2023-12-01
    “…Meanwhile, in each iteration, the Beamspace MUSIC algorithm and artificial hummingbird algorithm (AHA) are utilized to estimate the DOA and APD, respectively. …”
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  4. 204

    Applying the new multi-objective algorithms for the operation of a multi-reservoir system in hydropower plants by Syed Mohsen Samare Hashemi, Amir Robati, Mohammad Ali Kazerooni

    Published 2024-02-01
    “…Because the AHA algorithm is new, its multi-objective version, MOAHA (multi-objective artificial hummingbird algorithm), was used in this study and compared with two novel multi-objective algorithms, MOMSA and MOMGA. …”
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  5. 205
  6. 206

    Reproductive biology and flower-visitor interactions of two bromeliad species from the Brazilian Atlantic Forest by Matheus R. e Silva, Bruno C. Barbosa, Ana Paula G. de Faria

    Published 2022-03-01
    “…Both species presented a varied visitation guild, and although Q. indecora presented flowers with ornitofilous characteristics, no hummingbirds were recorded for this species. The hummingbird Thalurania glaucopis was the main visitor for Aechmea bruggeri and the bee Trigona cf. braueri was the main visitor for Quesnelia indecora. …”
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  7. 207

    SPECTRUM OF MAGNETIC RESONANCE IMAGING IN MOVEMENT DISORDER by Patel Dhruv Pankajbhai, Beena Devi Agarwal, Satya Sunder Gajendra Mohapatra, Somadatta Das

    Published 2023-06-01
    “…Most patients had absent swallow tail signs (38%), forming a diagnosis of Parkinson’s disease. The Hummingbird sign of PSP was observed in 6 patients (12%). …”
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  8. 208

    End fire linear antenna array synthesis using differential evolution inspired Adaptive Naked Mole Rat Algorithm by Harbinder Singh, Nitin Mittal, Amit Gupta, Pratap Singh, Fikreselam Gared

    Published 2023-07-01
    “…The proposed methodology results are also benchmarked against state-of-the-art algorithms, including the Salp Swarm Algorithm (SSA), Cuckoo Search (CS), Artificial Hummingbird Algorithm (AHOA), Chimp Optimization Algorithm (ChOA), and Naked Mole Rat Algorithm (NMRA). …”
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  9. 209

    Metaheuristic-based isolated microgrid sizing and uncertainty quantification considering EVs as shiftable loads by Soheil Mohseni, Roomana Khalid, Alan C. Brent

    Published 2022-11-01
    “…Particularly, the potential of the artificial hummingbird algorithm in reducing the total discounted costs of off-grid microgrids by at least ∼6% has been shown. …”
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  10. 210
  11. 211

    Functional analysis of cag pathogenicity island diversity in helicobacter pylori isolated from multi-ethnic patients in Malaysia by Shaza Azlin Razak, Alfizah Hanafiah, Asif Sukri, Neoh, Hui-Min, Noraziah Mohamad Zin

    Published 2024
    “…Inflammatory activities are observed and IL-8 concentration in the milder stage was found in significantly higher quantities than in the severe stage (P = 0.027). The ‘hummingbird’ phenotype was observed to cause severe effects in infected cells with cagPAI-intact H. pylori. …”
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  12. 212

    Convergence without divergence in North American red-flowering Silene by Andrea E. Berardi, Andrea E. Berardi, Andrea E. Berardi, Ana C. Betancourt Morejón, Ana C. Betancourt Morejón, Robin Hopkins, Robin Hopkins

    Published 2022-09-01
    “…We find that red-flowering species have evolved floral traits that align with a traditional hummingbird syndrome, but that these trait values overlap with several white and pink species as well. …”
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  13. 213

    OralNet: Fused Optimal Deep Features Framework for Oral Squamous Cell Carcinoma Detection by Ramya Mohan, Arunmozhi Rama, Ramalingam Karthik Raja, Mohammed Rafi Shaik, Mujeeb Khan, Baji Shaik, Venkatesan Rajinikanth

    Published 2023-07-01
    “…The research encompasses four stages: (i) Image collection and preprocessing, gathering and preparing histopathology images for analysis; (ii) feature extraction using deep and handcrafted scheme, extracting relevant features from images using deep learning techniques and traditional methods; (iii) feature reduction artificial hummingbird algorithm (AHA) and concatenation: Reducing feature dimensionality using AHA and concatenating them serially and (iv) binary classification and performance validation with three-fold cross-validation: Classifying images as healthy or oral squamous cell carcinoma and evaluating the framework’s performance using three-fold cross-validation. …”
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  14. 214

    Year-round monitoring reveals prevalence of fatal bird-window collisions at the Virginia Tech Corporate Research Center by Rebecca M. Schneider, Christine M. Barton, Keith W. Zirkle, Caitlin F. Greene, Kara B. Newman

    Published 2018-04-01
    “…Our findings indicate that birds collide with VTCRC windows during the summer breeding season in addition to spring and fall migration. The Ruby-throated Hummingbird (Archilochus colubris) was the most common window collision species and accounted for 10% of deaths. …”
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  15. 215

    The Middle Fragment of Helicobacter pylori CagA Induces Actin Rearrangement and Triggers Its Own Uptake into Gastric Epithelial Cells by Abolghasem Tohidpour, Rebecca J. Gorrell, Anna Roujeinikova, Terry Kwok

    Published 2017-07-01
    “…This novel morphology is different from the hummingbird phenotype induced by the translocation of full-length CagA. …”
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  16. 216

    Corolla micromorphology in 12 plant species with different pollination systems by Fernando Vélez-Esperilla, Ángela Fondón-Aguilar, Tomás Rodríguez-Riaño, Ana Ortega-Olivencia

    Published 2024-02-01
    “…Results: The adaxial side of the corolla lobes in melittophilous, myrmecophilous, psychophilous and sapromyophilous species showed papillose cells, and the same was true of the sphingophilous species Cestrum nocturnum and hummingbird-pollinated Nicotiana glauca. In contrast, tabular cells were observed in the perching-pollinator ornithophilous species Grevillea robusta, the two studied chiropterophilous species, and autogamous Stellaria media. …”
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  17. 217

    Widespread false gene gains caused by duplication errors in genome assemblies by Byung June Ko, Chul Lee, Juwan Kim, Arang Rhie, Dong Ahn Yoo, Kerstin Howe, Jonathan Wood, Seoae Cho, Samara Brown, Giulio Formenti, Erich D. Jarvis, Heebal Kim

    Published 2022-09-01
    “…We quantified false duplications in popularly used previous genome assemblies for platypus, zebra finch, and Anna’s Hummingbird, and their new counterparts of the same species generated by the Vertebrate Genomes Project, of which the Vertebrate Genomes Project pipeline attempted to eliminate false duplications through haplotype phasing and purging. …”
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  18. 218

    Bird-window collisions in the summer breeding season by Stephen B. Hager, Matthew E. Craig

    Published 2014-06-01
    “…Generally, the species observed as carcasses matched birds considered a ‘high risk’ for BWCs, e.g., Ruby-throated Hummingbird (Archilochus colubris), and those considered ‘low risk’ were not observed as carcasses, e.g., Blue-gray Gnatcatcher (Polioptila caerulea). …”
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  19. 219

    Helicobacter pylori GmhB enzyme involved in ADP-heptose biosynthesis pathway is essential for lipopolysaccharide biosynthesis and bacterial virulence by Sue-Fen Chiu, Kai-Wen Teng, Po-Chuan Wang, Hsin-Yu Chung, Chun-Jen Wang, Hui-Chun Cheng, Mou-Chieh Kao

    Published 2021-12-01
    “…In addition, HP0860 knockout mutant was much more sensitive to antibiotic novobiocin, had decreased adherence abilities, and caused less classic hummingbird phenotype on the infected AGS cells, indicating H. pylori lacking HP0860 is less virulent. …”
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