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  1. 4201
    “…Malaysia is one of the countries that were hit substantially by the outbreak, particularly in the second wave. This study aims to simulate the infectious trend and trajectory of COVID-19 to understand the severity of the disease and determine the approximate number of days required for the trend to decline. …”
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    Mathematical epidemiologic and simulation modelling of first wave COVID-19 in Malaysia
  2. 4202
    “…In Europe, multiple waves of infections with SARS-CoV-2 (COVID-19) have been observed. …”
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    Cytokine signature and COVID-19 prediction models in the two waves of pandemics
  3. 4203
    “…This work illustrates focalization performances of a silicon-based bulk acoustic wave device applied for the separation of specimens owing to micrometric dimensions. …”
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    Focalization Performance Study of a Novel Bulk Acoustic Wave Device
  4. 4204
    “…This study aimed to evaluate the clinical implication of the brachial-ankle pulse wave velocity (baPWV) for endovascular treatment (EVT). …”
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    Clinical implication of the brachial-ankle pulse wave velocity for endovascular treatment
  5. 4205
    “…We demonstrate the design of a neural network hardware, where all neuromorphic computing functions, including signal routing and nonlinear activation are performed by spin-wave propagation and interference. Weights and interconnections of the network are realized by a magnetic-field pattern that is applied on the spin-wave propagating substrate and scatters the spin waves. …”
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    Nanoscale neural network using non-linear spin-wave interference
  6. 4206
    “…METHODS: We investigated the extent to which COVID-19 mortality in Italy during the second wave was related to first wave mortality within the same provinces. …”
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    The association between first and second wave COVID-19 mortality in Italy
  7. 4207
    “…The results were compared to theoretical wave velocities extracted from dispersion curves. …”
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    Modelling and Validation of a Guided Acoustic Wave Temperature Monitoring System
  8. 4208
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    COVID-19 and gastrointestinal endoscopy in France: from the first to the second wave
  9. 4209
    “…But during this pause the second wave can come and become even stronger then the first one. …”
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    Social stress drives the multi-wave dynamics of COVID-19 outbreaks
  10. 4210
    “…This study extends previous findings by analyzing how spaceflight affects characteristics of sleep spindles and slow waves, two sleep oscillations associated with sleep quality and quantity, in four astronauts before, during and after two Space Shuttle missions. …”
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    Altered sleep spindles and slow waves during space shuttle missions
  11. 4211
    “…When the electrostatic repulsion is progressively attenuated by the addition of ionic species, the nanosheets sequentially undergo coherent motions, generating a propagating wave. This elaborate wave in time and space can transport microparticles over a long distance in uniform direction and velocity. …”
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    Propagating wave in a fluid by coherent motion of 2D colloids
  12. 4212
    “…Shear wave (SW) imaging is a novel ultrasound-based technique for assessing tissue characteristics. …”
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    Efficacy of shear wave elasticity for evaluating myocardial hypertrophy in hypertensive rats
  13. 4213
    “…RESULTS: the analytical theme - Waves of Family Hope in the Context of Pediatric Chronic Illness - is composed of four different types of hope: uncertain hope, caring hope, latent hope, and expectant hope. …”
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    Waves of family hope: narratives of families in the context of pediatric chronic illness
  14. 4214
    “…Lamb waves have been widely used for structural damage detection. …”
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    Lamb Wave Based Structural Damage Detection Using Stationarity Tests
  15. 4215
    “…We present a theory for the dispersion of generated harmonics in a traveling nonlinear wave. The harmonics dispersion relation (HDR), derived by the theory, provides direct and exact prediction of the collective harmonics spectrum in the frequency–wave number domain and does so without prior knowledge of the u = u(x, t) solution. …”
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    Time-independent harmonics dispersion relation for time-evolving nonlinear waves
  16. 4216
    “…PURPOSE: The aim of this study was to assess whether new-generation shear wave elastography (SWE) is suitable for the characterization of lung subpleural lesions. …”
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    Transthoracic ultrasound shear wave elastography for the study of subpleural lung lesions
  17. 4217
    “…Vanadium oxide (VO(2)), as one of the classical strongly correlated oxides with a reversible and sharp insulator-metal transition (IMT), enables many applications in dynamic terahertz (THz) wave control. Recently, due to the inherent phase transition hysteresis feature, VO(2) has shown favorable application prospects in memory-related devices once combined with metamaterials or metasurfaces. …”
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    Two-Channel VO(2) Memory Meta-Device for Terahertz Waves
  18. 4218
    “…Combined with the uniaxial compression strength of CPB, relationships between CPB strength and the guided wave acoustic parameters were established. Results indicate that with the increase of backfill curing time, the guided wave velocity decreases sharply at first; on the contrary, attenuation of guided waves increases dramatically. …”
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    Strength Development Monitoring of Cemented Paste Backfill Using Guided Waves
  19. 4219
    “…After adjusting for BSA, there was no association of aortic root diameter to pulse wave velocity (p = −0.054 r = 0.368) nor to central blood pressure (p = −0.029 r = 0.634). …”
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    Aortic Root Dimensions and Pulse Wave Velocity in Young Competitive Athletes
  20. 4220
    “…Surprisingly, in early April 2021, the second wave significantly impacted the population and garnered widespread international attention. …”
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    The Second Wave of COVID-19 in South and Southeast Asia and the Effects of Vaccination
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