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Related Concept Videos

Design Example01:23

Design Example

641
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
641
Bandpass Sampling01:17

Bandpass Sampling

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In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
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Passive Filters01:27

Passive Filters

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Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
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Upsampling01:22

Upsampling

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Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
703
Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

849
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
849
Op Amp AC Circuits01:18

Op Amp AC Circuits

602
Within an audio system, the filter circuit plays a pivotal role in processing the amplified audio signal from an amplifier. Its primary function is significantly attenuating signal components with lower frequencies, thereby shaping the audio output. This circuit's operations are examined, focusing on the fundamental filter configuration. This configuration involves an operational amplifier arranged in an inverting setup coupled with resistors (R1 and R2) and a capacitor (C1).
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Related Experiment Video

Updated: Mar 31, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
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Quilting a Field Pattern Portrait Using Butcher's Methodology.

Barbara K Charbonneau-Dahlen1

  • 1Minnesota State University, Mankato barbara.dahlen@mnsu.edu.

Journal of Holistic Nursing : Official Journal of the American Holistic Nurses' Association
|October 28, 2015
PubMed
Summary

This study shows how Martha Rogers

Area of Science:

  • Nursing Science
  • Theoretical Nursing
  • Cultural Competence in Healthcare

Background:

  • Martha Rogers' theory of the science of unitary human beings is foundational in nursing.
  • Butcher's unitary field pattern portrait (UFPP) provides a method for rigorous application of Rogerian theory.
  • Exploring new phenomena requires culturally relevant approaches to inquiry.

Purpose of the Study:

  • To explore the application of Rogerian nursing theory using a culturally appropriate intervention.
  • To facilitate healing in an American Indian mother and daughter through a quilting-based approach.
  • To capture the aesthetic field patterning of health through quilting using Butcher's UFPP.

Main Methods:

  • Utilized Butcher's unitary field pattern portrait (UFPP) for scientific rigor.
Keywords:
Rogers’s theory of the Science of Unitary Human BeingsUFPPhomeodynamic principlesmental healthpandimensionalityquilting

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  • Employed an American Indian tradition, quilting, as a culturally sensitive intervention.
  • Engaged clients in health patterning through narrative quilting based on Rogerian principles (resonancy, helicy, integrality).
  • Collected data through field notes and reflective journaling to support UFPP crystallization.

    • Main Results:

    • The quilting intervention facilitated healing by engaging an American Indian mother and daughter.
    • Pattern unfolding, a concept from Rogers' theory, was observed through the quilting process.
    • Butcher's UFPP effectively captured the aesthetic field patterning during the intervention.

    Conclusions:

    • American Indian quilting traditions can be a culturally appropriate modality for applying Rogerian nursing theory.
    • The UFPP method, combined with reflective journaling, aids in understanding complex health patterning.
    • This approach offers insights into pandimensionality and pattern unfolding within nursing science.