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In a DC circuit, the power consumed is simply the product of the DC voltage times the DC current, given in watts. However, the power consumed for AC circuits with reactive components is calculated differently. Since electrical power is the "rate" at which energy is used in a circuit, all electrical and electronic components and devices have a safe operating range for electrical power.
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The principle of power preservation is applicable to both ac and dc circuits. This principle, when applied to AC power, asserts that the complex, real, and reactive powers produced by the source are equal to the total complex, real, and reactive powers absorbed by the loads. When two load impedances are connected in parallel to an ac source V, the complex power provided by the source can be calculated using the relation
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The power and energy delivered to an element are subjects of great significance in the field of electrical engineering. It is a well-known fact that a 100-watt light bulb emits more light than a 60-watt one. Therefore, power and energy calculations play a crucial role in the analysis of electrical circuits.
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Three-phase systems have two configurations: the wye and delta. A star configuration can be three or four wires; in a delta configuration, the components are connected in a closed loop. Instantaneous power refers to the power value at a precise moment, and in a balanced three-phase system, it is constant. This is because the sum of the instantaneous powers in the three phases remains steady over time, despite individual fluctuations, due to the symmetry and phase relationship. The total...
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Power failure; an uncomfortable teaching initiative?

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Summary

Medical students learned about Cultural Humility and the power of clinical language. While they recognized its impact on patient stereotyping, low attendance highlighted challenges in engaging them with this crucial topic.

Keywords:
Powercultural competencecultural humilitygeneral practiceprimary care

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Area of Science:

  • Medical Education
  • Sociolinguistics
  • Healthcare Communication

Background:

  • Introduced Cultural Humility as an alternative to Cultural Competence.
  • Focused on power dynamics in clinical communication, particularly language use in General Practice.

Purpose of the Study:

  • To teach medical students about Cultural Humility.
  • To explore how power is conveyed through language in clinical settings.
  • To analyze student reflections on the impact of clinical language.

Main Methods:

  • Developed and delivered a teaching initiative on Cultural Humility for third-year medical students.
  • Focused on oral consultations and written clinical notes.
  • Analyzed student reflections on the session.

Main Results:

  • Attended students positively evaluated the session, increasing their awareness of clinical language's power to stereotype and dehumanize patients.
  • Students demonstrated Cultural Humility by reflecting on the harm caused by common clinical language.
  • Low attendance was a significant challenge despite efforts to emphasize clinical relevance.

Conclusions:

  • The study provides a framework for educators interested in teaching Cultural Humility.
  • Highlights the need for careful consideration in developing and delivering training on power in clinical communication.
  • Emphasizes the importance of engaging students with the complex topic of power dynamics in healthcare.