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Related Concept Videos

Crossing Over01:30

Crossing Over

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Crossing over is the exchange of genetic information between homologous chromosomes during prophase I of meiosis I. Genetic recombination gives rise to allelic diversity in the newly formed daughter cells. In humans, crossing over produces genetically distinct haploid egg and sperm cells that undergo fertilization to produce unique offspring. Before cell division starts, the germ cell’s chromosome(s) undergo duplication in the S phase of the cell cycle. As the cells enter prophase I,...
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Crossing Over01:34

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Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
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Rocket Propulsion In Empty Space - II01:12

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The motion of a rocket is governed by the conservation of momentum principle. A rocket's momentum changes by the same amount (with the opposite sign) as the ejected gases. As time goes by, the rocket's mass (which includes the mass of the remaining fuel) continuously decreases, and its velocity increases. Therefore, the principle of conservation of momentum is used to explain the dynamics of a rocket's motion. The ideal rocket equation gives the change in velocity that a rocket...
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The driving force for the motion of any vehicle is friction, but in the case of rocket propulsion in space, the friction force is not present. The motion of a rocket changes its velocity (and hence its momentum) by ejecting burned fuel gases, thus causing it to accelerate in the direction opposite to the velocity of the ejected fuel. In this situation, the mass and velocity of the rocket constantly change along with the total mass of ejected gases. Due to conservation of momentum, the...
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Latitudes and Departures01:27

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Latitudes and departures are essential concepts in surveying, providing a systematic way to analyze the projections of traverse lines. These projections allow surveyors to interpret a line's north-south and east-west components, which are crucial for precisely calculating areas, bearings, and lengths. Latitude is the north-south projection of a line, calculated as the product of the line's length and the cosine of its bearing. Departure, conversely, is the east-west projection obtained by...
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The Uncertainty Principle04:08

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Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
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Related Experiment Video

Updated: Feb 24, 2026

A Step Beyond BRET: Fluorescence by Unbound Excitation from Luminescence FUEL
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To Boldly Go Where One Has Gone Before.

Keith W Kelley1

  • 1Department of Pathology, College of Medicine and Department of Animal Sciences, College of ACES, University of Illinois at Urbana-Champaign, IL 61801-3873, USA.

Brain, Behavior, and Immunity
|August 19, 2017
PubMed
Summary

Americans overuse prescription drugs, leading to adverse effects. Research in psychoneuroimmunology explores ancient health practices like meditation and exercise as effective alternatives to medication.

Area of Science:

  • Psychoneuroimmunology
  • Integrative Medicine
  • Biomedical Research

Background:

  • High prevalence of prescription drug use in the USA.
  • Prescription drugs can have adverse effects on tissues and organs.
  • The journal Brain, Behavior, and Immunity was founded to challenge excessive specialization in biomedical research.

Purpose of the Study:

  • To investigate the efficacy of both drug and non-drug interventions.
  • To explore the underlying causes and effects of psychoneuroimmunology.
  • To challenge the prevailing specialization in medicine by focusing on integrative physiological events.

Main Methods:

  • Publishing cutting-edge findings in psychoneuroimmunology.
  • Analyzing the rise in publications within the field.

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  • Investigating ancient health practices such as mindfulness-based meditation, Tai Chi, and exercise.
  • Examining the role of perinatal health and the gut microbiome.

    • Main Results:

    • A significant increase in psychoneuroimmunology publications since 2000.
    • Identification of ancient health practices as current hot topics in the field.
    • Demonstration that some age-old interventions are as efficacious as prescription drugs.

    Conclusions:

    • Brain, Behavior, and Immunity continues to advance biomedical research by exploring integrative physiology.
    • Ancient health practices, when combined with modern technology, offer a promising path for effective healthcare.
    • A paradigm shift towards integrative approaches may provide better health outcomes than conventional, specialized medicine.