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Related Concept Videos

Rise of Liquid in a Capillary Tube01:18

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When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.
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A modern form of aggression is bullying. As you learn in your study of child development, socializing and playing with other children is beneficial for children’s psychological development. However, as you may have experienced as a child, not all play behavior has positive outcomes. Some children are aggressive and want to play roughly. Other children are selfish and do not want to share toys. One form of negative social interactions among children that has become a national concern is...
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When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
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We have discussed why we form relationships, what attracts us to others, and different types of love. But what determines whether we are satisfied with and stay in a relationship? One theory that provides an explanation is social exchange theory. According to social exchange theory, we act as naïve economists in keeping a tally of the ratio of costs and benefits of forming and maintaining a relationship with others (Rusbult & Van Lange, 2003).
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Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
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Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
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Related Experiment Video

Updated: Feb 14, 2026

High Content Screening Analysis to Evaluate the Toxicological Effects of Harmful and Potentially Harmful Constituents HPHC
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ED Visits for Self-Harm by Girls Are on the Rise.

Serena Stockwell1

  • 1Serena Stockwell.

The American Journal of Nursing
|February 23, 2018
PubMed
Summary

Experts are concerned about a nearly 20% rise in a specific behavior since 2008. This trend is worrying because the behavior is a known suicide risk factor.

Area of Science:

  • Public Health
  • Mental Health Research
  • Behavioral Science

Background:

  • Recent data indicates a significant increase in a concerning behavior since 2008.
  • This rise has captured the attention of public health experts and researchers.

Discussion:

  • The identified behavior is recognized as a critical risk factor for suicide.
  • Understanding the drivers behind this increase is crucial for intervention.

Key Insights:

  • A nearly 20% escalation in this behavior has been observed over the past decade.
  • The correlation between this behavior and increased suicide risk is a primary concern.

Outlook:

  • Further research is needed to explore the underlying causes of this behavioral increase.

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  • Developing targeted public health strategies is essential to mitigate suicide risk associated with this behavior.