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Related Concept Videos

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There are many devices and situations in which fluid flows at a constant height and so can be analyzed using Bernoulli's principle. These devices include, but are not limited to, entrainment devices and fluid flow measuring devices.
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Design Example: Application of Archimedes' Principle01:11

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Archimedes' principle is fundamental in analyzing the buoyant force and stability of floating bodies. In this example, a wooden block with a rectangular section floats in seawater. Based on the block's dimensions, its specific gravity and the specific weight of seawater are used to find the volume of water displaced and the center of buoyancy.
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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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To determine the electron configuration for any particular atom, we can build the structures in the order of atomic numbers. Beginning with hydrogen, and continuing across the periods of the periodic table, we add one proton at a time to the nucleus and one electron to the proper subshell until we have described the electron configurations of all the elements. This procedure is called the aufbau principle, from the German word aufbau (“to build up”). Each added electron occupies the...
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Related Experiment Video

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Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications
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Hydrogel-Tissue Chemistry: Principles and Applications.

Viviana Gradinaru1, Jennifer Treweek1, Kristin Overton2

  • 1Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, USA;

Annual Review of Biophysics
|May 25, 2018
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Summary

New hydrogel-tissue chemistry enables high-resolution data retrieval from animal systems. This approach preserves cellular and molecular information, advancing neuroscience and biological research.

Keywords:
CLARITYHTCclearinghydrogel-tissuehydrogelsmetareactant

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Area of Science:

  • Biotechnology
  • Neuroscience
  • Systems Biology

Background:

  • Advancements in experimental techniques allow for detailed analysis of multicellular systems.
  • Hydrogel-tissue chemistry is emerging as a key process for preserving biological information.

Purpose of the Study:

  • To describe a novel experimental approach for high-resolution, high-content information retrieval from intact metazoan systems.
  • To highlight the utility of this approach in neuroscience for understanding sensation, cognition, and action.

Main Methods:

  • Utilizing hydrogel-tissue chemistry to create new chemical and physical forms.
  • Developing methods for retaining and retrieving phenotypic information, including gene expression and cellular activity.
  • Preserving spatial information such as three-dimensional positioning and neural connectivity.

Main Results:

  • Successful collection of rich datasets at single-cell resolution.
  • Demonstration of preserving crucial phenotypic information and interrelationships between cells and molecules.
  • Application in neuroscience revealing fundamental cellular and chemical representations of neural processes.

Conclusions:

  • The described approach enables unprecedented data retrieval from complex biological systems.
  • Reimagining metazoans as 'metareactants' drives innovation in biology and medicine.
  • This methodology is poised to significantly advance our understanding of biological functions at multiple scales.