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Related Concept Videos

Implicit Differentiation01:25

Implicit Differentiation

In classical mechanics, motion is often described through relationships between spatial coordinates and time. A car moving along a straight highway with constant acceleration serves as a simple case where velocity is an explicit function of time. This scenario results in a linear equation, enabling straightforward analysis using basic differentiation techniques.In contrast, a satellite in circular orbit follows a path defined by an implicit function. The position of the satellite is constrained...
Implicit Differentiation with Partial Derivatives01:27

Implicit Differentiation with Partial Derivatives

Implicit differentiation with partial derivatives is used when a relationship between two variables is defined implicitly rather than explicitly. Instead of solving one variable in terms of the other, the variables remain connected through a single equation. In this setting, one variable is treated as depending on the other, and differentiation is applied directly to the entire relation.To differentiate an implicit relation, the chain rule is applied to every term in the equation. Because one...
Implicit Differentiation: Problem Solving01:29

Implicit Differentiation: Problem Solving

Curves defined implicitly, where variables cannot be separated algebraically, require specialized techniques for analysis. The conchoid of Nicomedes exemplifies such a case. Its equation links x and y in a way that prevents isolation of one variable, making implicit differentiation essential to determine the slope and behavior at any point on the curve.The implicit form of the conchoid can be expressed as:To differentiate this equation, y is treated as a function of x, and the chain rule is...
Forced Transdifferentiation01:28

Forced Transdifferentiation

Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial transdifferentiation occurs...
Logarithmic Differentiation01:28

Logarithmic Differentiation

When a car’s weight and driving forces act on a tire, they impose an external load on the rubber material. This load is resisted internally by forces distributed throughout the tire structure, which are defined as stress. The resulting deformation of the rubber due to this stress is quantified as strain. The relationship between stress and strain governs how the tire deforms under load and is central to understanding its mechanical response during operation.Rubber exhibits a nonlinear...
Introduction to Partial Derivatives01:25

Introduction to Partial Derivatives

In many real-world situations, an output depends on more than one input. In a high-tech assembly plant, total production may depend on technician labor and machine capacity at the same time. This relationship can be represented by a continuous function P(T, M), where T denotes technician labor input, and M denotes machine capacity. When demand increases, but the budget remains fixed, the manager must determine which input will improve production more efficiently.Partial derivatives provide a...

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Related Experiment Video

Updated: Jun 18, 2026

An Efficient Method to Obtain Dedifferentiated Fat Cells
06:11

An Efficient Method to Obtain Dedifferentiated Fat Cells

Published on: July 15, 2016

Make room for dedifferentiation.

X Rebecca Sheng1, Erika L Matunis

  • 1Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD, USA.

Fly
|November 20, 2009
PubMed
Summary
This summary is machine-generated.

Scientists discovered a new way to reverse cell differentiation in fruit flies, turning specialized cells back into stem cells. This process requires specific signaling pathways and impacts stem cell competition within the organism.

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Generation of Human Adipose Stem Cells through Dedifferentiation of Mature Adipocytes in Ceiling Cultures

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Last Updated: Jun 18, 2026

An Efficient Method to Obtain Dedifferentiated Fat Cells
06:11

An Efficient Method to Obtain Dedifferentiated Fat Cells

Published on: July 15, 2016

Streamlined 3D Cerebellar Differentiation Protocol with Optional 2D Modification
10:15

Streamlined 3D Cerebellar Differentiation Protocol with Optional 2D Modification

Published on: December 9, 2017

Generation of Human Adipose Stem Cells through Dedifferentiation of Mature Adipocytes in Ceiling Cultures
07:35

Generation of Human Adipose Stem Cells through Dedifferentiation of Mature Adipocytes in Ceiling Cultures

Published on: March 7, 2015

Area of Science:

  • Cell Biology
  • Developmental Biology
  • Stem Cell Biology

Background:

  • Cellular dedifferentiation, the reversal of cell specialization, is a key process in regeneration.
  • In vivo dedifferentiation examples are increasingly found in various organisms.
  • Understanding dedifferentiation in vivo is crucial for regenerative medicine and developmental biology.

Purpose of the Study:

  • To investigate the induction of dedifferentiation in Drosophila germline stem cells (GSCs).
  • To identify signaling pathways involved in in vivo dedifferentiation.
  • To explore the implications of dedifferentiation on stem cell competition and niche dynamics.

Main Methods:

  • Developed a novel method to induce dedifferentiation of committed stem cell daughters in the Drosophila testis.
  • Utilized genetic and cellular analyses to study the process.
  • Investigated the role of Janus kinase-signal transducer and activator of transcription (Jak-STAT) signaling.

Main Results:

  • Successfully induced dedifferentiation of lineage-committed cells back into GSCs in vivo.
  • Demonstrated the essential role of Jak-STAT signaling activation in this dedifferentiation process.
  • Observed that dedifferentiated germline cells gain motility and compete with somatic cells for niche occupancy.

Conclusions:

  • The study presents a novel method for inducing in vivo dedifferentiation in Drosophila.
  • Jak-STAT signaling is crucial for GSC dedifferentiation and subsequent stem cell competition.
  • Dedifferentiation contributes to stem cell replenishment and influences niche dynamics.