Related Experiment Video
Updated: Jan 28, 2026

09:20
Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells
Published on: July 6, 2021
2.8K
Civil Commitment, Firearms Restriction, and the U.S. Sixth Circuit Tyler Ruling
1Dr. Williams is Clinical Assistant Professor, Department of Psychiatry, University of North Carolina School of Medicine, Chapel Hill, NC. joseph_williams@med.unc.edu.
The Journal of the American Academy of Psychiatry and the Law
|September 24, 2017
Summary
No abstract available in PubMed .
Related Concept Videos
The Quotient Rule
55
The quotient rule is a fundamental differentiation technique in calculus used to differentiate functions expressed as a ratio of two differentiable functions. Given a function of the form:Where g(x) and h(x) are both differentiable and h(x) ≠ 0, the derivative of f(x) is given by:Example:The quotient rule is beneficial when differentiating rational functions, trigonometric ratios, and exponential functions. For example, given:applying the quotient rule,This rule is essential in solving...
55
The Aufbau Principle and Hund's Rule
72.6K
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...
72.6K
Lineage Commitment
4.3K
Commitment is the process whereby stem cells:
4.3K
Exceptions to the Octet Rule
37.4K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
37.4K
Lewis Symbols and the Octet Rule
80.5K
Chemical bonds are complex interactions between two or more atoms or ions, which reduce the potential energy of the molecule. Gilbert N. Lewis developed a model called the Lewis model that simplified the depiction of chemical bond formation and provided straightforward explanations for the chemical bonds seen in most common compounds.
80.5K
Restriction Enzymes
36.0K
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.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
36.0K

