Showing 501 - 520 results of 9,156 for search 'issues samples', query time: 0.15s Refine Results
  1. 501

    Solvent‐Based and Matrix‐Matched Calibration Methods on Analysis of Ceftiofur Residues in Milk and Pharmaceutical Samples Using a Novel HPLC Method by Saniye Özcan, Serkan Levent, Nafiz Öncü Can

    Published 2024-11-01
    “…Results Interestingly, it was found that CEF signals in milk samples were higher than the ones at the same level prepared in calibration solutions with a ratio of 11.28:1. …”
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    Article
  2. 502

    An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction by Ziming Yin, Pengcheng Guo, Yunyu Wei, Sizhe Gao, Jingjing Wang, Anxiang Xue, Kuo Wang

    Published 2025-05-01
    “…However, existing intra-pulse agile signals suffer from high autocorrelation sidelobe levels and limited jamming suppression capabilities. These issues restrict the performance of intra-pulse agile signals in complex electromagnetic environments.This paper proposes an anti-interrupted-sampling repeater jamming method based on Simulated Annealing–2-optimization (SA-2opt) parallel optimization of waveforms and fractional domain extraction. …”
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    Article
  3. 503

    Working with clients engaging in recurrent suicidal behavior: impacts on community mental health practitioners by Megan Collisson, Jacinta Hawgood

    Published 2025-03-01
    “…Eight practitioners were recruited via criterion snowball sampling to participate in semi-structured interviews up to a maximum of 45 min duration.ResultsParticipants were comprised of mental health clinicians (N = 6) and psychosocial support workers (N = 2) in community mental health settings. …”
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    Article
  4. 504

    Causal Relationships Between Immune Cell Traits, Plasma Metabolites, and Asthma: A Two‐Step, Two‐Sample Mendelian Randomization Study by Zhuozheng Hu, Peihao Xu, Jiajun Wu, Weijun Zhou, Yajie Zhou, Lei Xie, Wenxiong Zhang, Yong Cheng

    Published 2025-06-01
    “…Methods Utilizing the GWAS database, this study employed a two‐step, two‐sample Mendelian randomization (MR) approach and the inverse variance weighted (IVW) method to investigate the causality between ICTs and asthma, as well as between PMs and asthma. …”
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    Article
  5. 505

    DPF-Bi-RRT<sup>*</sup>: An Improved Path Planning Algorithm for Complex 3D Environments With Adaptive Sampling and Dual Potential Field Strategy by Lin Ge, Swee King Phang, Nohaidda Sariff

    Published 2025-01-01
    “…This research work, we introduce a path planning algorithm called DPF-Bi-RRT* which integrates a Dual Potential Field mechanism with a Targeted Sampling Strategy to address path planning issues in complex 3D spaces. …”
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    Article
  6. 506
  7. 507

    Rising Trend of Colistin Resistance and Shift in Minimum Inhibitory Concentrations Toward the Higher Side Among Enterobacteriaceae Isolated from Clinical Samples by Shila K. Singh, Lahunlyne Kaharakor, Najmiara S. Ahmed

    Published 2025-03-01
    “…Background: The emergence of multidrug resistance (MDR) bacteria is a major global health issue that arises a concern for humanity especially when fewer options for antibiotics are available. …”
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    Article
  8. 508

    Transfer Learning Based on Multi-Branch Architecture Feature Extractor for Airborne LiDAR Point Cloud Semantic Segmentation with Few Samples by Jialin Yuan, Hongchao Ma, Liang Zhang, Jiwei Deng, Wenjun Luo, Ke Liu, Zhan Cai

    Published 2025-07-01
    “…Insufficient training data may lead to over-fitting. To address this issue, we propose a novel Multi-branch Feature Extractor (MFE) and a three-stage transfer learning strategy that conducts pre-training on multi-source ALS data and transfers the model to another dataset with few samples, thereby improving the model’s generalization ability and reducing the need for manual annotation. …”
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    Article
  9. 509

    Unmanned Aerial Vehicle-Enabled Aerial Radio Environment Map Construction: A Multi-Stage Approach to Data Sampling and Path Planning by Junyi Lin, Hongjun Wang, Tao Wu, Zhexian Shen, Ruhao Jiang, Xiaochen Fan

    Published 2025-01-01
    “…To address this issue, this paper proposes a multi-stage approach to data sampling and path planning with multiple UAVs. …”
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    Article
  10. 510

    Pareto-driven gradient-boosted Bayesian optimization for multi-objective inverse design of Aerogel-cement-EPS panels in small-sample regimes by Lu Lu, Anming Bai, Haodong Wang, Wenjia Xi, Shan Yun, Shangbing Gao, Mingming Wang, Xinguo Sun

    Published 2025-12-01
    “…By constructing a Pareto front solution set, this method successfully resolves the multi-objective optimization and inverse design challenges in the formulation design of aerogel-cement-expanded polystyrene building insulation panels under small-sample conditions. The integration of data augmentation and data expansion techniques significantly enhances the scale and diversity of the dataset, effectively mitigating the data scarcity issue. …”
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  11. 511
  12. 512

    Determinants of given anything other than breast milk for neonates in Ethiopia: a multilevel modeling complex sample survey data analysis by Nigusie Selomon Tibebu, Tigabu Desie Emiru, Chalie Marew Tiruneh, Gebrehiwot Berie Mokonnen, Birara Aychew Tilaye, Lakachew Yismaw Bazezew, Bisrat Dessie Getu, Moges Wubneh Abate, Adane Birhanu Nigat, Getasew Legas, Belete Gelaw Walle, Mulualem Gete Feleke, Endalk Birrie

    Published 2025-05-01
    “…Methods This study was a multilevel population-based cross-sectional conducted with total of weighted sample of 24,252 participants. The Ethiopian Demographic and Health Survey 2019 data were the source of secondary data analysis used in the study. …”
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    Article
  13. 513
  14. 514

    A Method for Auto Generating a Remote Sensing Building Detection Sample Dataset Based on OpenStreetMap and Bing Maps by Jiawei Gu, Chen Ji, Houlin Chen, Xiangtian Zheng, Liangbao Jiao, Liang Cheng

    Published 2025-07-01
    “…The resulting dataset comprises 36,647 samples, covering buildings in both urban and suburban areas across multiple cities. …”
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    Article
  15. 515

    Prevalence and prevention of violence against children and adolescents in volunteer work: analysis of a sub-sample from a representative survey of Germany by Anna Eberhardt, Jörg M. Fegert, Elmar Brähler, Ulrike Hoffmann

    Published 2025-05-01
    “…Descriptive statistics were used to analyze the sample and VCAC prevalence, regressions were used to examine perceptions of protective measures and subjective well-being. …”
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    Article
  16. 516

    A Comparison of Teaching Legal Issues of Abortion through Role Play and Standardized Patient Methods on Clinical Performance of Midwifery Students Regarding Abortion by Somayeh Pourhosein

    Published 2024-09-01
    “…This study aimed to compare the effectiveness of two teaching methods, role-play and standardized patient scenarios,on midwifery students' clinical performance concerning abortion legal issues. Materials and methods: In this semi-experimental study, 75 midwifery students from Mashhad University of Medical Sciences were selected through convenience sampling and randomly assigned to either the role-play or standardized patient group. …”
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    Article
  17. 517

    Sexual and Gender Minority Health Care Issues Related Competence and Preparedness Among the Health Care Professionals and Trainees in India: A Comparative Study by Mini Sharma, Apoorva Mohlia, Prerna Kukreti, Saurabh, Dinesh Kataria

    Published 2024-10-01
    “…A minimum of 25 participants in each of the four equally stratified groups were recruited using purposive sampling over 3 months. Statistical analysis used: The data was analysed using Epicollect software. …”
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    Article
  18. 518

    Characterization of Oil Well Cement–Formation Sheath Bond Strength by Musaed N. J. AlAwad, Khalid A. Fattah

    Published 2025-05-01
    “…Cement–formation sheath bond strength is a critical issue in the field of petroleum engineering and well cementing. …”
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    Article
  19. 519

    How to solve small sample size problems in time-series soil organic carbon mapping: New insights from the Third Law of Geography by Jingzhe Wang, Zipeng Zhang, Yankun Wang, Cheng-Zhi Qin, Xiangyue Chen, Yinghui Zhang, Zhongwen Hu

    Published 2025-08-01
    “…This study provides a reference for addressing small sample size issues in time-series soil organic carbon mapping.…”
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  20. 520