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Self-Evaluation: Self-Enhancement and Self-Verification03:00

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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
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Zones of Protection01:16

Zones of Protection

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In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
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Radial System Protection01:23

Radial System Protection

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Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
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Protecting Self-Esteem01:27

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Self-esteem, a central component of psychological well-being, is actively maintained through various cognitive and behavioral strategies. Individuals employ specific mechanisms to preserve a positive self-concept and mitigate threats to their self-worth, particularly in contexts involving social evaluation or personal feedback. Four primary techniques are commonly used to sustain self-esteem.Manipulating AppraisalsOne prominent strategy involves manipulating appraisals from others. Individuals...
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States of Water01:23

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Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
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Enhancing protection for vulnerable waters.

Irena F Creed1, Charles R Lane2, Jacqueline N Serran1

  • 1Department of Biology, Western University, London, ON N6A 5B7, Canada.

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Summary
This summary is machine-generated.

Freshwater systems worldwide need better protection, especially vulnerable streams and wetlands. Science-based adaptive management and policy options are crucial for freshwater sustainability and protecting vital ecosystem services.

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Area of Science:

  • Environmental Science
  • Water Resource Management
  • Ecosystem Services

Background:

  • Freshwater systems globally face inadequate protection, risking essential functions and ecosystem services.
  • Impermanent streams and wetlands outside floodplains are particularly vulnerable to degradation.
  • Changing societal needs necessitate new, adaptive management approaches for freshwater sustainability.

Purpose of the Study:

  • To provide a scientific rationale for enhanced protection of vulnerable freshwater systems.
  • To propose policy options for governments to improve freshwater protection.
  • To address the implications of recent regulatory actions, like the US Clean Water Rule, on freshwater governance.

Main Methods:

  • Review of scientific evidence on freshwater system vulnerability and importance.
  • Analysis of policy approaches for freshwater management.
  • Development of scientifically informed policy recommendations.

Main Results:

  • Scientific evidence strongly supports enhanced protection for vulnerable freshwater ecosystems.
  • A 'do-nothing' approach is scientifically untenable for freshwater sustainability.
  • The Clean Water Rule, despite its challenges, has spurred important policy discussions.

Conclusions:

  • Enhanced protection of freshwater systems is scientifically imperative.
  • Adaptive management informed by science is key to freshwater sustainability.
  • Proactive policy and management are needed at all government levels to safeguard vulnerable waters.