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Related Concept Videos

Fatigue01:21

Fatigue

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Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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Protein Folding Quality Check in the RER01:29

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ER is the primary site for the maturation and folding of soluble and transmembrane secretory proteins. The calnexin cycle is a specific chaperone system that folds and assesses the confirmation of N-glycosylated proteins before they can exit the ER lumen. The primary players of this quality check pipeline are the lectins, ER-resident chaperones, and a glucosyl transferase enzyme. In case the calnexin system in the lumen fails to salvage a misfolded protein, it is transported to the cytoplasm...
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Fatigue Strength of Concrete01:22

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Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
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Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
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Reliability and Validity01:29

Reliability and Validity

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Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
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Regulated Protein Degradation02:58

Regulated Protein Degradation

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It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
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Related Experiment Video

Updated: Aug 31, 2025

Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
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Ratifying frailty.

Tiago Moreira1

  • 1Department of Sociology, Durham University, 32 Old Elvet, Durham DH1 3HN, United Kingdom.

Journal of Aging Studies
|August 25, 2022
PubMed
Summary
This summary is machine-generated.

This study examines how mouse models of frailty are created, reflecting research expectations for aging and cell senescence. It proposes researchers must understand the animal

Keywords:
Animal experimentationFrailtyLaboratory studiesMore-than human

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Area of Science:

  • Gerontology
  • Social Studies of Science
  • Anthropology

Background:

  • Frailty is increasingly used to manage aging populations.
  • Aging research is driven by expectations for therapies targeting cell senescence.
  • Mouse models are central to translating findings from aging research to humans.

Purpose of the Study:

  • To analyze the creation and validation of mouse models of frailty.
  • To explore the techno-economic expectations embedded in aging research.
  • To understand the process of translating findings from mouse models to human aging.

Main Methods:

  • Ethnographic fieldwork in a biology of aging laboratory.
  • Analysis integrating critical gerontology, social studies of science, and more-than-human anthropology.
  • Examination of the conceptual and practical challenges in building frailty mouse models.

Main Results:

  • Mouse models of frailty embody specific therapeutic and techno-economic goals of aging research.
  • The process of building these models involves understanding the animal's perspective ('thinking like a mouse').
  • Successful translation requires reconfiguring the scientific reference chain between mouse and human models.

Conclusions:

  • Creating valid frailty mouse models requires a deep, albeit provisional, understanding of the animal's perspective.
  • The development of these models reflects broader societal and scientific expectations about aging and its manipulation.
  • Rethinking the translation process is crucial for advancing human aging research through animal models.