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Related Concept Videos

The Ras Gene02:38

The Ras Gene

The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a superfamily...
Theory of Attribution I: Correspondent Inference Theory01:15

Theory of Attribution I: Correspondent Inference Theory

Correspondent inference theory, proposed by Jones and Davis in 1965, seeks to explain how individuals infer stable personality traits from observed behaviors. It suggests that people attribute actions to underlying dispositions rather than external circumstances, particularly when the behavior appears intentional and socially significant.Voluntary Behavior and Dispositional AttributionAccording to this theory, individuals are more likely to attribute behavior to personal traits when it appears...
Nondisjunction01:29

Nondisjunction

During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.
Nondisjunction01:21

Nondisjunction

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers.  Nondisjunction is common during anaphase I or anaphase II of meiosis.  Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold sister...
Nondisjunction01:29

Nondisjunction

During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.
Jaundice01:25

Jaundice

Jaundice, or icterus, is the yellow discoloration of the skin, sclerae, and mucous membranes. It happens when plasma bilirubin levels rise above 2.5-3 mg/dL, leading to bilirubin deposition in tissue.Bilirubin is a byproduct of hemoglobin degradation. In macrophages, hemoglobin breaks down into globin and heme. Globin is converted into amino acids, while heme is turned into biliverdin by heme oxygenase, which is then reduced to unconjugated bilirubin by biliverdin reductase.Unconjugated...

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Related Experiment Video

Updated: May 10, 2026

A Swine Model of Neonatal Asphyxia
10:36

A Swine Model of Neonatal Asphyxia

Published on: October 11, 2011

Jonah's Birth.

Rachel Goldstein

    The Journal of Perinatal Education
    |June 5, 2013
    PubMed
    Summary

    This personal narrative highlights choosing midwifery care and a home birth after extensive research. The author describes a positive, natural birth experience supported by her husband, doula, and midwife.

    Area of Science:

    • Maternal Health
    • Alternative Birthing Practices

    Background:

    • Many expectant parents explore various childbirth options.
    • Informed decision-making is crucial for a positive birth experience.

    Purpose of the Study:

    • To share a personal account of choosing midwifery care and a home birth.
    • To illustrate the benefits of a supportive and natural labor environment.

    Main Methods:

    • Personal narrative and reflection on pregnancy and birth choices.
    • Detailed account of labor progression and support systems.

    Main Results:

    • Successful natural childbirth at home with midwifery and doula support.
    • Positive maternal experience attributed to informed choices and strong support.
    Keywords:
    birth decisionschildbirthhome birthmidwifery care

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    Development of a Neonatal Rat Model for Brachial Plexus Birth Injury

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    State of the Art Cranial Ultrasound Imaging in Neonates

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    Last Updated: May 10, 2026

    A Swine Model of Neonatal Asphyxia
    10:36

    A Swine Model of Neonatal Asphyxia

    Published on: October 11, 2011

    Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
    09:42

    Development of a Neonatal Rat Model for Brachial Plexus Birth Injury

    Published on: March 27, 2026

    State of the Art Cranial Ultrasound Imaging in Neonates
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    State of the Art Cranial Ultrasound Imaging in Neonates

    Published on: February 2, 2015

    Conclusions:

    • Midwifery care and home birth can be fulfilling options for expectant parents.
    • The impact of supportive care providers and comfort strategies on birth outcomes.