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Related Concept Videos

Resistors In Series01:10

Resistors In Series

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A resistor is an ohmic device that limits the flow of charge in a circuit. Most circuits have more than one resistor. If several resistors are connected together and connected to a battery, the current supplied by the battery depends on the equivalent resistance of the circuit. The equivalent resistance of a combination of resistors depends on both their individual values and how they are connected. The simplest combination of resistors is the series combination. 
In a series circuit, the...
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Series Resonance01:17

Series Resonance

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The RLC circuit impedance is defined as the ratio of the supply voltage to the circuit current. Resonance in such a circuit occurs when the imaginary part of this impedance equals zero. This specific condition means that the inductive reactance is exactly equal to the capacitive reactance. The frequency at which this happens is known as the resonant frequency. Mathematically, the resonant frequency is inversely proportional to the square root of the product of the inductance (L) and capacitance...
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Series and Parallel Capacitors01:14

Series and Parallel Capacitors

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Capacitors, fundamental components in electronic circuits, can be connected in series and/or parallel configurations. Each configuration has different impacts on the overall behavior of the circuit.
First, consider capacitors connected in series to a battery. In this configuration, the plate connected to the battery's positive terminal develops a positive charge, while the plate attached to the negative terminal becomes negatively charged. An equal magnitude of charge is induced on the...
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Trigonometric Fourier series01:17

Trigonometric Fourier series

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Fourier series is a foundational mathematical technique that decomposes periodic functions into an infinite series of sinusoidal harmonics. This method enables the representation of complex periodic signals as sums of simple sine and cosine functions, facilitating their analysis and interpretation in various fields, including signal processing, acoustics, and electrical engineering.
The trigonometric Fourier series specifically expresses a periodic function with a defined period T using sine...
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Convergence of Fourier Series01:21

Convergence of Fourier Series

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The Fourier series is a powerful mathematical tool for representing periodic signals as an infinite sum of complex exponentials. In practice, this infinite series is truncated to a finite number of terms, yielding a partial sum. This truncation makes the approximation of the signal feasible but introduces certain challenges, particularly near discontinuities, known as the Gibbs phenomenon.
The Gibbs phenomenon refers to the persistent oscillations and overshoots that occur near discontinuities...
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Series R—L Circuit Transients01:22

Series R—L Circuit Transients

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In a series resistor-inductor (R-L) circuit, closing the switch at the start of the time period simulates a three-phase short circuit, a fault condition where all three phases of an unloaded synchronous machine are short-circuited. When there is no fault impedance and no initial current, the initial voltage is determined by the phase angle of the source voltage.
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Updated: Feb 14, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
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[Scimitar syndrome: a case series].

Carlos Jaramillo González1, José Karam Bechara1, Jessica Sáenz Gómez1

  • 1Servicio de Neumología Pediátrica, Hospital Infantil de México Federico Gómez, México, D.F., México.

Boletin Medico Del Hospital Infantil De Mexico
|February 9, 2018
PubMed
Summary

Scimitar syndrome, a rare congenital lung anomaly, presents unique characteristics in female patients diagnosed in infancy. This study highlights distinct features and the prevalence of pulmonary hypertension in affected children.

Keywords:
Anomalous pulmonary venous returnAnomalías del sistema respiratorioMalformaciones vascularesRespiratory system abnormalitiesRetorno venoso pulmonar anómaloScimitar syndromeSíndrome de la cimitarraVascular malformations

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Area of Science:

  • Cardiology
  • Pulmonology
  • Pediatric Surgery

Context:

  • Scimitar syndrome is a rare congenital lung anomaly characterized by anomalous pulmonary venous drainage.
  • It is often associated with other cardiothoracic malformations and diverse clinical presentations.

Purpose:

  • To review demographic, clinical, and hemodynamic data of pediatric patients diagnosed with scimitar syndrome.
  • To identify unique characteristics of scimitar syndrome patients within a specific cohort.

Summary:

  • A review of nine pediatric patients diagnosed with scimitar syndrome between 2009 and 2013.
  • Patients were predominantly female, diagnosed between 1-20 months, and asymptomatic at the time of study.
  • All patients exhibited pulmonary hypertension; one-third required surgical intervention.

Impact:

  • This case series identifies distinct features of scimitar syndrome in a pediatric population, differing from international literature.
  • Highlights the high prevalence of pulmonary hypertension and the need for surgical consideration in affected children.