Showing 3,261 - 3,280 results of 4,802 for search 'complex have problems', query time: 0.17s Refine Results
  1. 3261

    Optimization of microwave components using machine learning and rapid sensitivity analysis by Slawomir Koziel, Anna Pietrenko-Dabrowska

    Published 2024-12-01
    “…The use of available mitigation methods, primarily surrogate-based approaches, is impeded by dimensionality-related problems and the complexity in microwave circuit characteristics. …”
    Get full text
    Article
  2. 3262

    A modified algorithm of 'forward-backward' solving the identification of automata Markov models by A.R. Nurutdinova

    Published 2018-09-01
    “…The estimates of the computational complexity of the proposed identification algorithms have been calculated. …”
    Get full text
    Article
  3. 3263

    An improved elastic net clustering algorithm with dynamic parameter strategy by Junyan Yi, Maoming Wang, Changsheng Zhou

    Published 2025-08-01
    “…First, we design a novel energy function according to the aim of clustering, which can help the network well distinguish the probability distribution of the data points affiliated with a specific cluster and obtain better clustering solutions, especially for high-dimensional and large-scale problems. Second, a dynamic parameter strategy is introduced into the energy function, which can make the network have higher space searching ability, speed up the expansion and convergence process, and decrease the sensibility of the parameters. …”
    Get full text
    Article
  4. 3264

    Optimising management against dynamic threats: A spatially explicit approach based on integer programming by José Salgado‐Rojas, Virgilio Hermoso, Eduardo Álvarez‐Miranda

    Published 2025-08-01
    “…Abstract Defining strategies to control dynamic threats is a highly complex problem that is defined by the biological characteristics of the threatening agents (e.g. invasive species), the landscape context and the management objective within the constraints of limited financial resources. …”
    Get full text
    Article
  5. 3265

    DETERMINATION OF THE OPTIMAL EXTRACTION CONDITIONS OF DANDELION HERB AND LARGE BURDOCK LEAF SPECIE BY METHODS OF MATHEMATICAL PLANNING OF A MULTIFACTORIAL EXPERIMENT by Yu. I. Chistova

    Published 2019-02-01
    “…To determine the optimal conditions for extracting a specie of dandelion herb and a large burdock leaf.Materials and methods. To solve this problem, methods of mathematical planning of a multifactorial experiment have been used: simplex method of mathematical planning, incomplete factorial experiment of type 25-2 for compiling the equation of the response surface, the method of steep ascent (the Box – Wilson method) along the response surface. …”
    Get full text
    Article
  6. 3266

    Physiological and behavioral indicators of stress in pigs by O. Poroshynska, K. Lukyanenko, S. Shmayun, V. Koziy

    Published 2024-12-01
    “…Limiting night feeding of piglets disrupts not only the rhythms of their behavior, but also changes the composition of the intestinal microbiota, lowers the serum levels of hormones associated with depression and anxiety. Stress is a complex problem that affects all the main systems of the pig body, causing changes in the physiological state, behavior and performance of the animals. …”
    Get full text
    Article
  7. 3267

    Climatotherapy in treatment and rehabilitation of children with bronchial asthma complicated with increased meteosensitivity by A. I. Uyanaeva, M. A. Khan, Yu. Yu. Tupitsyna, I. M. Chukina, N. A. Lyan, G. A. Maksimova

    Published 2023-03-01
    “…Introduction. A topical problem in pediatrics is bronchial asthma, which is characterized by a high prevalence, contributing to the formation of disability and a decrease in the quality of life in children. …”
    Get full text
    Article
  8. 3268

    Application of group model building in implementation research: A systematic review of the public health and healthcare literature. by Weanne Myrrh Estrada-Magbanua, Terry T-K Huang, David W Lounsbury, Priscila Zito, Pulwasha Iftikhar, Nabila El-Bassel, Louisa Gilbert, Elwin Wu, Bruce Y Lee, Pedro Mateu-Gelabert, Nasim S Sabounchi

    Published 2023-01-01
    “…<h4>Background</h4>Group model building is a process of engaging stakeholders in a participatory modeling process to elicit their perceptions of a problem and explore concepts regarding the origin, contributing factors, and potential solutions or interventions to a complex issue. …”
    Get full text
    Article
  9. 3269

    Key Drivers Affecting the Future of Power Relations in Tehran Metropolis with a Scenario-Writing Approach by Afshin Mottaghi, Arash Ghorbani Sepehr, Joseph Saloukadz

    Published 2024-09-01
    “…The more access these actors have to geopolitical drivers, the greater their influences will be across local, regional, national, and global scales. …”
    Get full text
    Article
  10. 3270

    DEONTOLOGY AND PROFESSIONAL ETHICS IN DENTIST’S PROFESSION by O.V. Rybalov, I.Yu. Lytovchenko, S.V. Kolomiets, V.L. Prochankina

    Published 2018-06-01
    “…Providing medical stomatological services is a complex of activity that requires a lot of knowledge, skills, technology, work from biological elements that can be unpredictable, as well as knowledge of medical psychology. …”
    Get full text
    Article
  11. 3271

    Variational Autoencoding with Conditional Iterative Sampling for Missing Data Imputation by Shenfen Kuang, Jie Song, Shangjiu Wang, Huafeng Zhu

    Published 2024-10-01
    “…Variational autoencoders (VAEs) are popular for their robust nonlinear representation capabilities and have recently achieved notable advancements in the problem of missing data imputation. …”
    Get full text
    Article
  12. 3272

    Role of NLRP3 Inflammasome in the Progression of NAFLD to NASH by Xingyong Wan, Chengfu Xu, Chaohui Yu, Youming Li

    Published 2016-01-01
    “…The NLRP3 inflammasome is an intracellular multiprotein complex involved in the production of mature interleukin 1-beta (IL-1β) and induces metabolic inflammation. …”
    Get full text
    Article
  13. 3273

    Protein Ligases: Nature’s Gift for Protein/Peptide Synthesis by Yvonne Ritsema, Huapeng Li, Qingfei Zheng

    Published 2025-05-01
    “…Proteins are structurally and functionally diverse biomacromolecules that serve a variety of essential activities to ensure complex biological homeostasis. The desire to elucidate and enhance these biological functions has been at the forefront of research for many decades. …”
    Get full text
    Article
  14. 3274

    Distributional Fractal Creating Algorithm in Parallel Environment by Shuai Liu, Weina Fu, Huimin Deng, Caihe Lan, Jiantao Zhou

    Published 2013-09-01
    “…Secondly, we prove its correctness and compute the complexity of this novel parallel algorithm. Meantime, we separate an improved ETA which we have presented into the same parallel environment and compute its complexity. …”
    Get full text
    Article
  15. 3275

    Understanding the Human Dimensions of the Intention to Use Renewable Energy in Hungary – Applying an Extended Model of Theory of Planned Behaviour by Szabolcs Nagy, László Molnár, Noémi Hajdú

    Published 2023-08-01
    “…The aim of our study is to understand the complex psychological background of the intention to use renewable energy by applying the Theory of Planned Behaviour (TPB). …”
    Get full text
    Article
  16. 3276

    Pneumococcal Vaccine in Adults with Bronchopulmonary Pathology: from Prevention to Treatment by A. M. Kostinov, A. A. Tarasova, K. V. Mashilov

    Published 2023-07-01
    “…We also consider it necessary to discuss the possible mechanisms of therapeutic effects after the introduction of a monovaccine against S. pneumoniae, as well as when it is combined with vaccines against Haemophilus influenzae type b infection, and the effectiveness of various vaccination regimens, including complex ones.Conclusions. Convincing arguments are presented proving that the introduction of vaccines against respiratory infections can have not only a reventive value, but also a therapeutic effect, accompanied by a transient restoration of the immune system parameters, as well as a reduction in the contamination or elimination of S. pneumoniae in patients with chronic pathology of the bronchopulmonary system.…”
    Get full text
    Article
  17. 3277

    Deep blur detection network with boundary-aware multi-scale features by Xiaoli Sun, Qiwei Wang, Xiujun Zhang, Chen Xu, Weiqiang Zhang

    Published 2022-12-01
    “…Although many hand-crafted features based approaches have been presented during the last decades, they were not robust to the complex scenarios. …”
    Get full text
    Article
  18. 3278

    Duchowieństwo Kościoła katolickiego wobec polskich zrywów niepodległościowych w XIX wieku – przypadek Ludwika Łętowskiego (1786–1868) by Andrzej Synowiec

    Published 2024-01-01
    “… The aim of this article is to showcase the complex problem of the attitude of Catholic Church, and specifically its clergy, to the Polish uprisings in the 19th century. …”
    Get full text
    Article
  19. 3279

    Reproducible Ala-Gly oligomerization catalyzed by the natural Borate colemanite in prebiotic conditions by Isabella Rimoldi, Giorgio Facchetti, Lucia Feni, Giacomo Diego Gatta, Paolo Lotti, Silvia Rizzato, Michael S. Christodoulou, Lucia Silvestrini, Leonardo Lo Presti

    Published 2025-08-01
    “…Abstract The abiogenesis of complex peptides is a yet unsolved problem concerning the origin of life, as it is unclear how specific amino acid sequences could be formed in the absence of a regulation mechanism. …”
    Get full text
    Article
  20. 3280

    Self-guided transitions and creative idea search: adaptively choosing flexibility versus persistence in divergent and convergent thinking tasks by Wilma Koutstaal

    Published 2025-03-01
    “…Such adaptivity is crucial for navigating complex problem spaces such as creative problem-solving. …”
    Get full text
    Article