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Related Concept Videos

Septins01:19

Septins

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Septins are protein filaments forming the cytoskeleton along with the microtubules, microfilaments, intermediate filaments, and other accessory proteins. In 1971 while studying the cell division cycle in mutant Saccharomyces cerevisiae Harwell et al. first identified the septin-related genes playing a crucial role in yeast cytokinesis. Fluorescence microscopy revealed that these proteins localize at the budding neck as rings. These ring-like proteins were then named Septins by John Pringle, and...
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Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
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Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
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Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
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Zones of Protection01:16

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In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
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This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
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Related Experiment Video

Updated: Jan 20, 2026

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Geriatric medicine: whose specialty?

J Williamson

    Annals of Internal Medicine
    |November 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Geriatric medicine should remain a distinct specialty, integrating with mainstream medical fields. This approach is vital for addressing the complex health needs of an aging population.

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    Area of Science:

    • Geriatric Medicine
    • Public Health Policy

    Background:

    • The 1978 Institute of Medicine report advised against a formal geriatric specialty.
    • The United Kingdom established a comprehensive geriatric medicine specialty prior to 1948.
    • The future direction of geriatric medicine remains undefined.

    Purpose of the Study:

    • To evaluate the current state and future of geriatric medicine as a specialty.
    • To propose a model for integrating geriatric care into mainstream medicine.

    Main Methods:

    • Review of historical recommendations and current service models.
    • Analysis of the UK's geriatric medicine service structure.
    • Conceptual proposal for American geriatric care integration.

    Main Results:

    • Geriatric medicine faces an unclear future.
    • The UK model demonstrates a functional separate specialty.
    • Direct transplantation of the UK model to the US is not feasible.

    Conclusions:

    • Geriatric medicine should persist as a separate specialty.
    • Integration with family practice, internal medicine, and psychiatry is crucial.
    • Applying geriatric care principles within a specialist service is essential for the aging American population.