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Related Concept Videos

Cell Motility through Blebbing01:16

Cell Motility through Blebbing

Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
Western Blotting01:15

Western Blotting

Western blotting is an analytical technique for protein identification. It has various applications in immunology and medicine, including detecting diseases like bovine spongiform encephalopathy, mad cow disease, and human and feline immunodeficiency virus from biological samples.
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Southern Blot02:57

Southern Blot

Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
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Transcytosis of IgG01:15

Transcytosis of IgG

Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...

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Related Experiment Video

Updated: Jul 13, 2026

Discovery of Metastatic Regulators using a Rapid and Quantitative Intravital Chick Chorioallantoic Membrane Model
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Discovery according to blalock.

Luis H Toledo-Pereyra

    Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research
    |July 7, 2007
    PubMed
    Summary

    Alfred Blalock emphasized discovery as a crucial quality for surgical researchers. He outlined four categories of discovery: chance, intention, intuition, and combinations thereof.

    Area of Science:

    • Medical Research
    • Surgical Investigation
    • Scientific Discovery

    Background:

    • Alfred Blalock (1899-1964) was a renowned surgeon and educator.
    • He stressed the importance of discovery for surgical researchers.
    • Blalock advocated learning from classical investigators like Bernard, Cannon, and Loewi.

    Observation:

    • Discovery is essential for utilizing advanced tools to define research problems.
    • Blalock's insights provide a framework for understanding the nature of scientific breakthroughs.
    • He valued interactions with young investigators.

    Findings:

    • Blalock identified four categories of discovery: chance, intention, intuition, and combinations.
    • These categories offer a structured way to analyze the process of scientific advancement.

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    Minimally Invasive Establishment of Murine Orthotopic Bladder Xenografts
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  • He believed discovery is central to the investigator's work.

    • Implications:

    • Understanding Blalock's framework can guide and inspire future generations of surgical researchers.
    • This analysis highlights the multifaceted nature of scientific inquiry.
    • Promoting a culture of discovery is vital for continued progress in medicine.