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Related Concept Videos

Social Exchange Theory02:06

Social Exchange Theory

40.8K
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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Social Exchange Theory01:26

Social Exchange Theory

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As formulated by John Thibaut and Harold Kelley, Social Exchange Theory explains human relationships as economic-like exchanges that maximize rewards and minimize costs. This theory suggests that individuals engage in relationships to gain benefits and reduce burdens, similar to economic transactions. It has been widely applied to various types of relationships, including romantic, professional, and social interactions.Rewards and Costs in RelationshipsRelationship rewards include emotional...
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Gas Exchange and Transport01:20

Gas Exchange and Transport

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Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
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Capillary Exchange01:28

Capillary Exchange

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The cardiovascular system's chief role is to disseminate gases, nutrients, waste, and other substances to the body's cells. Small molecules like gases, lipids, and lipid-soluble substances directly diffuse through capillary wall endothelial cell membranes. Glucose, amino acids, and ions, including sodium, potassium, calcium, and chloride, use transporters for facilitated diffusion via membrane-specific channels. Glucose, ions, and bigger molecules may also pass through intercellular...
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Ion Exchange01:17

Ion Exchange

1.3K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Respiration and Gaseous Exchange01:20

Respiration and Gaseous Exchange

3.5K
The intricate interplay between the cardiovascular and respiratory systems is crucial for efficiently transporting respiratory gases throughout the body. Let us explore the cardiovascular system's multifaceted functions, emphasizing its pivotal role in gas exchange.
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...
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Related Experiment Video

Updated: Feb 7, 2026

Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane
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Functional Characterization of Na+/H+ Exchangers of Intracellular Compartments Using Proton-killing Selection to Express Them at the Plasma Membrane

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Our Approaches to Selective Plasma Exchange.

Tomonari Ogawa, Hideki Yoshino, Yusuke Sasaki

    Contributions to Nephrology
    |July 25, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Plasma exchange (PE) therapy removes essential molecules, necessitating fresh frozen plasma (FFP) replacement, which carries risks. Selective PE uses a specialized membrane to retain vital molecules while removing waste, offering a safer alternative.

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    Area of Science:

    • Medical technology
    • Biomedical engineering
    • Renal medicine

    Background:

    • Plasma exchange (PE) is a common treatment in Japan.
    • Standard PE removes essential molecules like coagulation factors.
    • Fresh frozen plasma (FFP) is used for replacement but can cause complications.

    Purpose of the Study:

    • To research an alternative to standard PE.
    • To develop a safer method for molecule replacement during PE.

    Main Methods:

    • Developing a selective PE (sPE) system.
    • Utilizing a membrane with smaller pores for filtration.

    Main Results:

    • The sPE membrane retains large, essential molecules.
    • Waste products are effectively removed from the blood.
    • Potential to reduce complications associated with FFP.

    Conclusions:

    • Selective PE offers a promising alternative to standard PE.
    • This method preserves essential molecules, potentially improving patient safety.