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Related Rates01:18

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When two or more physical quantities are linked by a single relationship, a change in one variable necessarily affects the others. This interdependence forms the basis of related rates analysis, which examines how different quantities change with respect to time. A classic physical example is an expanding balloon, where the size of the balloon changes continuously as air is added.For a hot air balloon, the inflated envelope is commonly idealized as a perfect sphere to simplify mathematical...
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In designing and analyzing filters, resonant circuits, or circuit analysis at large, working with standard element values like 1 ohm, 1 henry, or 1 farad can be convenient before scaling these values to more realistic figures. This approach is widely utilized by not employing realistic element values in numerous examples and problems; it simplifies mastering circuit analysis through convenient component values. The complexity of calculations is thereby reduced, with the understanding that...
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[Medication adherence rating scale].

Irene Vanelli1, Inês Chendo, Carlos Gois

  • 1Serviço de Psiquiatria, Hospital Santa Maria, Lisboa, Portugal.

Acta Medica Portuguesa
|June 16, 2011
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Summary
This summary is machine-generated.

The Portuguese version of the Medication Adherence Rating Scale (MARS) is a valid and reliable tool for assessing medication compliance in psychotic patients. This study confirms its utility for improving therapeutic interventions.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Pharmacology

Background:

  • Medication compliance is a significant challenge impacting the effectiveness of neuroleptic treatments in psychiatric populations.
  • Accurate assessment of patient medication adherence is essential for optimizing therapeutic strategies.
  • The Medication Adherence Rating Scale (MARS) is a concise tool for evaluating compliance.

Purpose of the Study:

  • To validate the Portuguese version of the Medication Adherence Rating Scale (MARS).
  • To assess the reliability and feasibility of the MARS for use with psychotic patients in a Portuguese-speaking context.

Main Methods:

  • The original MARS scale underwent a translation-backtranslation process.
  • The study included 77 patients diagnosed with psychosis according to DSM-IV criteria.
  • Feasibility and reliability analyses were conducted on the translated scale.

Main Results:

  • The Portuguese MARS demonstrated good internal consistency, with a Cronbach's alpha of 0.73.
  • Reliability was confirmed through Pearson's correlation coefficient (r = 0.76; p < 0.05).
  • These findings align with the original scale's validation coefficients.

Conclusions:

  • The Portuguese version of the MARS is a valid and reliable instrument for measuring medication compliance in patients with psychosis.
  • The scale is easy to administer, supporting its use in clinical practice.
  • This validated tool can aid in planning more effective treatment interventions for psychoactive medication adherence.