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Related Concept Videos

Sound Intensity00:58

Sound Intensity

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The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
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Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
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Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
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The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
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The intensity of sound waves can be related to displacement and pressure amplitudes by using their wave expressions and the definition of intensity. The critical step to achieve this is to write the power delivered by the particles on the wave as the product of force and velocity and simplify the force per unit area as the pressure. The velocity of the medium's particles can be derived from the displacement.
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Group therapy is a sociocultural approach to psychological treatment, where individuals with shared psychological challenges come together under the guidance of a mental health professional. This therapeutic modality offers unique opportunities for individuals to connect, share, and grow within the context of a supportive group. By fostering mutual understanding and collaboration, group therapy can address a range of psychological concerns effectively, often complementing or surpassing the...
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[Intensive therapy in thoracoabdominal surgery].

V V Nikoda1, A V Bondarenko1, E A Lishova1

  • 1Petrovsky Russian Research Centre of Surgery, Moscow, Russia.

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Intensive care unit advancements have improved thoracoabdominal surgery outcomes. New diagnostic and management strategies reduce complications and mortality for complex surgical patients.

Keywords:
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Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Critical Care Medicine

Background:

  • The establishment of intensive care units (ICUs) has spurred significant scientific advancements.
  • Pre- and postoperative patient management in thoracoabdominal surgery has been a key focus of research.

Purpose of the Study:

  • To detail the development of diagnostic approaches and preventive measures for thoracoabdominal surgery.
  • To establish standards for treating patients post-thoracoabdominal surgery.

Main Methods:

  • Review of scientific work and clinical practices in intensive care.
  • Analysis of diagnostic, preventive, and treatment protocols for thoracoabdominal surgery patients.

Main Results:

  • Development of refined diagnostic and management strategies.
  • Significant reduction in contraindications for surgical interventions.
  • Enabling radical operations in patients with severe comorbidities.
  • Decreased incidence of postoperative complications and mortality.

Conclusions:

  • Advances in critical care have optimized pre- and postoperative management for thoracoabdominal surgery.
  • Improved patient outcomes, including expanded surgical eligibility and reduced mortality, are evident.