Showing 4,361 - 4,380 results of 4,802 for search 'complex have problems', query time: 0.33s Refine Results
  1. 4361

    Enhanced recovery pathway for older people with hip fracture and cognitive impairment in acute hospitals: the PERFECTED research programme including an RCT by Chris Fox, Simon P Hammond, Lee Shepstone, Fiona Poland, Catherine Henderson, Tamara Backhouse, Bridget Penhale, Simon Donell, Martin Knapp, Douglas Lewins, Alasdair MacLullich, Martyn Patel, Opinder Sahota, Toby O Smith, Justin Waring, Jane L Cross

    Published 2025-02-01
    “…The outcomes of medical treatment for elderly patients with hip fracture are often poor, and worse when patients have memory and thinking problems. There is little research on how best to look after this patient group in hospital. …”
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    Article
  2. 4362

    A comprehensive study of recent maximum power point tracking techniques for photovoltaic systems by Mohammed Hamouda Ali, Mohammad Zakaria, Sally El-Tawab

    Published 2025-04-01
    “…Five of these techniques have been proposed here to solve the MPPT problem. …”
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    Article
  3. 4363

    Presenting a Quantum Leadership Model to Establish Organizational Civilization in the Iranian Higher Education System by reza heydari, hamidreza rezaeekelidbari, musa chaman zamin

    Published 2025-03-01
    “…Organizational intelligence and knowledge sharing have multiple serial mediating effects on quantum leadership and innovation performance. …”
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    Article
  4. 4364

    Presenting the agility model of the organization in order to improve the productivity of human resources by Asie Mohmedi, Rashid Zolfaghari, Mahsa Gholam hossein zadeh

    Published 2024-11-01
    “…Organizational agility is an organizational capability that must be considered by the managers of educational organizations in order to achieve organizational goals, and has the components of innovation, responsibility, speed in work, low complexity, high quality, flexibility, and readiness to respond to environmental changes, and also is very resistant to environmental problems and challenges (Abolghasem et al., 2018). …”
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    Article
  5. 4365

    Formatting the surgical management of Tessier cleft types 3 and 4 by Mishra R, Purwar Reetesh

    Published 2009-10-01
    “…In the absence of any well-laid guidelines for management of such rare cases, plastic surgeons operate on such cases due to the inherent complexities in technique. To overcome this problem and provide a ground rule for surgical management of such cases, we propose an easier format with a ′split approach′ of the affected areas. …”
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    Article
  6. 4366

    A three-dimensional analytical model for performance evaluation of thermoelectric generators by Dandan Pang, Aibing Zhang, Baolin Wang, Guangyong Li, Jia Lou

    Published 2024-12-01
    “…It is shown that neglecting 3D heat conduction within the ceramic substrates leads to a substantial overestimation of TEG performance. Additionally, the complex 3D heat conduction problem for TEGs can be simplified into a more manageable 1D model with only minor adjustments to classical TEG theory. …”
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    Article
  7. 4367

    Installation for the research of galvanomagnetic effects in manganites of lanthanides by K.T. Ermaganbetov, L.V. Chirkova, B.K. Kassenov, R. Kabiden, K.M. Makhanov, A.K. Zeinidenov, E.T. Arinova

    Published 2018-03-01
    “…The manganites of lanthanides having complex structure can be examples of such materials. …”
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    Article
  8. 4368

    Joint power control for untrusted relay cooperation-based confidential communication by Wen-jiang FENG, Wei-heng JIANG, Yi-na DENG, Yang YUAN

    Published 2014-11-01
    “…The scenario that multiple cell-edge mobile stations (MS) all without direct-links to the base station (BS) but have confidential messages in the uplink in the presence of untrusted relay (UR) cooperation was considered.In order to implement the secure communication between BS and multiple MS,destination-based jamming (DBJ) scheme was adopted.With the assumption that all MS had fixed transmit power,the joint UR and BS power control which aims at maximizing system sum secrecy rate was discussed.For this problem,analysis indicated that it was equivalent to joint access control and power allocation problem thus its NP-hard.Through problem relaxation,a suboptimal MS access control and alternatively power allocation algorithm was provided.This algorithm is proved to have polynomial complexity and can converge to at least a suboptimal solution for original problem.Simulation results show that compared with the benchmark algorithms,the proposed suboptimal algorithm is better in the achievable secrecy rate performance.…”
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    Article
  9. 4369

    Joint power control for untrusted relay cooperation-based confidential communication by Wen-jiang FENG, Wei-heng JIANG, Yi-na DENG, Yang YUAN

    Published 2014-11-01
    “…The scenario that multiple cell-edge mobile stations (MS) all without direct-links to the base station (BS) but have confidential messages in the uplink in the presence of untrusted relay (UR) cooperation was considered.In order to implement the secure communication between BS and multiple MS,destination-based jamming (DBJ) scheme was adopted.With the assumption that all MS had fixed transmit power,the joint UR and BS power control which aims at maximizing system sum secrecy rate was discussed.For this problem,analysis indicated that it was equivalent to joint access control and power allocation problem thus its NP-hard.Through problem relaxation,a suboptimal MS access control and alternatively power allocation algorithm was provided.This algorithm is proved to have polynomial complexity and can converge to at least a suboptimal solution for original problem.Simulation results show that compared with the benchmark algorithms,the proposed suboptimal algorithm is better in the achievable secrecy rate performance.…”
    Get full text
    Article
  10. 4370

    The Relations between Student Foreign Language Anxiety and Social Variables by János Farkas, Tímea Lázár, Eszter Valnerné Török, Mohammad Bin Amin, Zita Hajdu

    Published 2025-07-01
    “…This complex is one of the main factors hindering language learning, affecting all people to either a greater or lesser extent. …”
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    Article
  11. 4371

    Pedagogical grammar as a frame concept for research in the field of foreign language teaching methods. Part 17. Linguistic and pedagogical grammar by L. Chernovaty

    Published 2024-12-01
    “…Analysing this general problem, the author outlines the range of questions that need to be answered in the course of his study. …”
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    Article
  12. 4372

    Functional morphology of digestive organs of newborn calves and pathogenesis of escherichiosis by S. M. Suleymanov

    Published 2023-09-01
    “…Despite numerous studies, the problem of escherichiosis in newborn calves remains one of the most urgent due to the extensive spread of the disease and high mortality of young animals. …”
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    Article
  13. 4373

    IsTICômetros: para uma visão e um processo alternativos<p>Isictometrics: toward an alternative vision and process by Michel Menou

    Published 2001-12-01
    “…To that end theyneed to have instruments and methods that allow them to judge what is occurring. …”
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    Article
  14. 4374

    The Contribution of Endogenous Modulatory Systems to TMS- and tDCS-Induced Analgesia: Evidence from PET Studies by Marcos F. DosSantos, Aleli T. Oliveira, Natália R. Ferreira, Antônio C. P. Carvalho, Paulo Henrique Rosado de Castro

    Published 2018-01-01
    “…Moreover, its adequate management is still considered a major clinical problem, mainly due to its incredible complexity and still poorly understood pathophysiology. …”
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    Article
  15. 4375
  16. 4376

    Formatting the surgical management of Tessier cleft types 3 and 4 by R. K. Mishra, Reetesh Purwar

    Published 2009-10-01
    “…In the absence of any well-laid guidelines for management of such rare cases, plastic surgeons operate on such cases due to the inherent complexities in technique. To overcome this problem and provide a ground rule for surgical management of such cases, we propose an easier format with a ‘split approach’ of the affected areas. …”
    Get full text
    Article
  17. 4377

    Use of TED Talks video materials in teaching oral liaison interpreting in a non-language university by Maria Valerievna Belorukova, Marina Vianorovna Zolotova

    Published 2023-03-01
    “…Methods of classroom work have been given, graded by complexity and number of participants. …”
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    Article
  18. 4378

    Peculiarities of morphological indicators of quail spleen (Coturnix japonica Temminck et Schlegel, 1849) when using protein-vitamin mineral supplements by O. F. Dunaievska, I. M. Sokulskiy, L. P. Horalskyi, M. L. Radzikhovskyi, B. V. Gutyj

    Published 2024-02-01
    “…To date, the positive dynamics of the growth of such a branch of industrial poultry farming as quail breeding has been noted. Quails have a complex of excellent economic and productive advantages compared to other agricultural birds – high body temperature, intensive metabolism in the body, small size, precocity, high egg productivity. …”
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  19. 4379

    Pressure ulcers: modern approaches of prevention and treatment by N. O. Somov

    Published 2023-08-01
    “…Pressure ulcers are a serious medical, social and economic problem, having a significant impact not only on the general well-being of the patient, but also on the quality of his life on the physical, emotional and psychological levels. …”
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    Article
  20. 4380

    Sedimentation enhancement and its retention through integration of vegetation with permeable groin-like structure in tidal river by Md. Kabirul Islam, Md. Munsur Rahman

    Published 2024-12-01
    “…It is found that the structure has a high potential to enhance sedimentation along the bank line, while having difficulty in retaining the trapped sediment within the complex flow-sediment regime of tidal environment. …”
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    Article