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Related Concept Videos

Control Systems01:10

Control Systems

Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
Impression Management Techniques III: Aligning Actions01:29

Impression Management Techniques III: Aligning Actions

Aligning actions are communicative strategies individuals employ to maintain social harmony and preserve personal identity in the face of potential disruptions to social norms. These actions are particularly important in managing social impressions when one's behavior might be seen as inappropriate, incompetent, or morally questionable.Types of Aligning ActionsThe three principal types of aligning actions are disclaimers, accounts, and apologies.DisclaimersDisclaimers are preventive; they are...
Methods of Documentation VI: Case Management Model01:15

Methods of Documentation VI: Case Management Model

The case management model is a multidisciplinary approach that involves healthcare professionals from diverse disciplines, such as physicians, nurses, therapists, social workers, and pharmacists, working collaboratively to address the various needs of patients. Each healthcare professional brings unique expertise and perspectives, contributing to a more comprehensive understanding of the patient's condition and tailoring treatment plans accordingly.
For example, a patient with a chronic illness...
Pharmacodynamic Models: Link Model and Systems Pharmacodynamic Model01:14

Pharmacodynamic Models: Link Model and Systems Pharmacodynamic Model

The link model is a fundamental pharmacokinetic-pharmacodynamic (PK–PD) approach to account for delayed drug responses when the observed effect does not immediately correlate with the drug's plasma concentration peak. This delay is mathematically addressed by introducing an effect compartment concentration, Ce, which is kinetically linked to the plasma concentration, Cp, via a first-order rate constant, ke0. The linkage allows for a more accurate prediction of drug effects over time. A higher...
Feedback control systems01:26

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Control Systems: Applications01:25

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...

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Related Experiment Video

Updated: Jul 15, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

Using system differences to orchestrate change: a systems-guides intervention model.

Patricia A O'Connor1

  • 1Department of Psychology, The Sage Colleges, Troy, NY 12180, USA. oconnp@sage.edu

American Journal of Community Psychology
|April 3, 2007
PubMed
Summary

Community interventions require understanding complex systems. A three-step systems-guides model helps change agents identify and address discrepancies within systems, leading to participant-driven changes.

Related Experiment Videos

Last Updated: Jul 15, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

Area of Science:

  • Community Psychology
  • Systems Theory
  • Organizational Behavior

Background:

  • Community-based interventions often face challenges due to the complex, interwoven nature of social systems.
  • Change agents must recognize the distinct standards, norms, and goals (systems-guides) inherent to each system.
  • Tensions within multi-system collaborations can hinder intervention success.

Purpose of the Study:

  • To describe a three-step systems-guides model for enhancing change agent effectiveness in complex systems.
  • To illustrate the model's application in a multi-system collaboration setting.
  • To explore how identifying discrepancies between systems and their guides can facilitate change.

Main Methods:

  • Observation to detect systems, systems-guides, and discrepancies.
  • Small group discussions to document identified discrepancies.
  • Dissemination of findings to collaboration participants to foster recognition.

Main Results:

  • The model facilitated participants' recognition of discrepancies between systems and their guides.
  • Two fundamental systems changes emerged organically from participants, not the change agent.
  • The change agent's role was primarily to facilitate awareness of discrepancies.

Conclusions:

  • A close relationship between change agents and involved systems is critical for successful model implementation.
  • The systems-guides model can empower systems participants to drive meaningful change.
  • Understanding and addressing systems-guides discrepancies is key to effective community interventions.