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  1. 9201
    “…Bangladesh has been struck by the 2nd wave from mid-march 2021. As data on the second wave are sparse, the present study observed the demographic profile, symptoms, and outcomes of Coronavirus Disease 2019 (COVID-19) patients during this wave. …”
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    Demographic profile and outcome of patients admitted to a COVID dedicated hospital in Bangladesh during the second wave
  2. 9202
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    1621P Emotional distress in cancer patients during the first wave of the COVID-19 pandemic in Madrid
  3. 9203
    “…CONCLUSION: City districts with lower economic and health status and those with a non-Western migration background had the highest burden of COVID-19 during the first wave of COVID-19 in Amsterdam. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-021-11782-w.…”
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    Hospitalisation rates differed by city district and ethnicity during the first wave of COVID-19 in Amsterdam, The Netherlands
  4. 9204
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    Retrospective analysis of anti-inflammatory therapies during the first wave of COVID-19 at a community hospital
  5. 9205
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    Age and Emotional Distress during COVID-19: Findings from Two Waves of the Norwegian Citizen Panel
  6. 9206
    “…The present paper describes the “first-wave” regional epidemiological and clinical-biological features and the evolution of the COVID-19 pandemic. …”
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    Epidemiologic and Clinic Characteristics of the First Wave of the COVID-19 Pandemic in Hospitalized Patients from Galați County
  7. 9207
    “…This paper proposed a solid-mounted (SM) longitudinally excited shear wave resonator (i.e., YBAR). By adopting a 200 nm x-cut LiNbO(3) film, top (aluminum) and bottom (platinum) electrodes in 50 nm thickness and 500 nm width, this resonator simultaneously achieves an operating frequency over 5 GHz with an electromechanical coupling coefficient exceeding 50%. …”
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    Solidly Mounted Longitudinally Excited Shear Wave Resonator (YBAR) Based on Lithium Niobate Thin-Film
  8. 9208
    “…For the non-invasive assessment of pulmonary artery pressure (PAP), surrogates like pulse wave transit time (PWTT) have been proposed. The aim of this study was to invasively validate for which kind of PAP (systolic, mean, or diastolic) PWTT is the best surrogate parameter. …”
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    Correlation of Pulse Wave Transit Time with Pulmonary Artery Pressure in a Porcine Model of Pulmonary Hypertension
  9. 9209
    “…The stiffness of masseter muscles was measured with shear wave elastography. Stiffness for the total sample was 6.37 ± 0.77 kPa. …”
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    Stiffness of the Masseter Muscle in Children—Establishing the Reference Values in the Pediatric Population Using Shear-Wave Elastography
  10. 9210
    “…Millimeter-wave and terahertz technologies have been attracting attention from the wireless research community since they can offer large underutilized bandwidths which can enable the support of ultra-high-speed connections in future wireless communication systems. …”
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    Low Complexity Hybrid Precoding Designs for Multiuser mmWave/THz Ultra Massive MIMO Systems
  11. 9211
    “…BACKGROUND: The acuity and magnitude of the first wave of the COVID‐19 epidemic in New York mandated a drastic change in healthcare access and delivery of care. …”
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    Increased Inpatient Mortality for Cardiovascular Patients During the First Wave of the COVID‐19 Epidemic in New York
  12. 9212
    por Damstra, Alyt, Hameleers, Michael
    Publicado 2021
    “…Importantly, the moderating role of crisis context is examined when tracing media effects on knowledge. Relying on a four-wave panel survey fielded in the Netherlands, we find that people’s knowledge became more accurate over the course of the crisis. …”
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    Knowledge Acquisition in Times of the 2020 Coronavirus Pandemic: Evidence from a Four-Wave Panel Study
  13. 9213
    “…INTRODUCTION: Two-dimensional shear wave elastography (2D-SWE) and vibration-controlled transient elastography (VCTE) provide noninvasive assessment of hepatic fibrosis. …”
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    Diagnostic accuracy of two-dimensional shear wave elastography and transient elastography in nonalcoholic fatty liver disease
  14. 9214
    “…We sought to evaluate the prognostic role of estimated pulse wave velocity (ePWV), a marker of arterial stiffness which reflects overall arterial integrity and aging, in risk stratification of hospitalized patients with COVID-19. …”
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    Estimated pulse wave velocity improves risk stratification for all-cause mortality in patients with COVID-19
  15. 9215
    “…Interferometric methods of optical sensing based on the phase shift of the Bloch surface waves (BSWs) and guided waves (GWs) supported by a one-dimensional photonic crystal are presented. …”
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    Efficient Optical Sensing Based on Phase Shift of Waves Supported by a One-Dimensional Photonic Crystal
  16. 9216
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    Spin-Orbital Conversion of a Strongly Focused Light Wave with High-Order Cylindrical–Circular Polarization
  17. 9217
    “…Over the last decade, unmanned aerial vehicles (UAVs) with antenna arrays have usually been employed for the enhancement of wireless communication in millimeter-wave bands. They are commonly used as aerial base stations and relay platforms in order to serve multiple users. …”
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    Analytical Blind Beamforming for a Multi-Antenna UAV Base-Station Receiver in Millimeter-Wave Bands
  18. 9218
    “…Ultrasonic guided wave monitoring is regularly used for monitoring the structural health of industrial pipes, but small defects are difficult to identify owing to the influence of the environment and pipe structure on the guided wave signal. …”
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    High-Sensitivity Ultrasonic Guided Wave Monitoring of Pipe Defects Using Adaptive Principal Component Analysis
  19. 9219
    “…The present study used a four‐wave longitudinal panel design to investigate temporal relationships between proactive burnout prevention and burnout over 3, 6 and 9 weeks. …”
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    Investigating the temporal relationship between proactive burnout prevention and burnout: A four‐wave longitudinal study
  20. 9220
    “…METHODS: We conducted a four-wave longitudinal study in the United States and China across four stages of the pandemic: prepandemic, onset of viral outbreak, ongoing risk, and contained risk. …”
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    Changing emotions in the COVID-19 pandemic: A four-wave longitudinal study in the United States and China()
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