Jove
Visualize
Contact Us

Related Concept Videos

Radioactive Decay and Radiometric Dating02:48

Radioactive Decay and Radiometric Dating

37.8K
Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
37.8K
Nonsense-mediated mRNA Decay02:27

Nonsense-mediated mRNA Decay

11.9K
The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
11.9K
Nonsense-mediated mRNA Decay02:27

Nonsense-mediated mRNA Decay

3.4K
3.4K
Interference and Decay01:16

Interference and Decay

490
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
490
Resting Potential Decay01:15

Resting Potential Decay

6.5K
The resting membrane potential of a neuron (-70mV) is sustained due to the selective ion permeability of the membrane. At the resting potential, the membrane is slightly permeable to ions like sodium (Na+) and chloride (Cl−) and highly permeable to potassium ions (K+). Differences in the ions' concentration inside the cell compared to the outside are maintained by membrane transport proteins like channels and pumps.
At rest, the K+ is the main ion that moves across the membrane...
6.5K
5-Number Summary01:04

5-Number Summary

5.8K
In a dataset, the 5-number summary includes the minimum data value, the data value of the first quartile, the median data value or data value of the second quartile, the data value of the third quartile, and the maximum data value. These 5 data values can be visualized as a box and whisker plot.
In a box plot, the minimum and maximum data values represent the lower and upper whiskers in the graph, and the median is designated as the center of the box in the chart. The first quartile and third...
5.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Detection of early-universe gravitational-wave signatures and fundamental physics.

General relativity and gravitation·2022
Same author

New physics searches at kaon and hyperon factories.

Reports on progress in physics. Physical Society (Great Britain)·2022
Same author

Boosted Dark Matter Interpretation of the XENON1T Excess.

Physical review letters·2020
Same author

Erratum: Dark Matter Interpretation of the Neutron Decay Anomaly [Phys. Rev. Lett. 120, 191801 (2018)].

Physical review letters·2020
Same author

Neutron Star Stability in Light of the Neutron Decay Anomaly.

Physical review letters·2019
Same author

Dark Matter Interpretation of the Neutron Decay Anomaly.

Physical review letters·2018
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Feb 16, 2026

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method
07:38

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method

Published on: April 18, 2019

34.6K

SU(5) Unification without Proton Decay.

Bartosz Fornal1, Benjamín Grinstein1

  • 1Department of Physics, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.

Physical Review Letters
|December 30, 2017
PubMed
Summary
This summary is machine-generated.

This study presents a four-dimensional SU(5) grand unified theory where proton stability is achieved through specific parameter relations. The model aligns with current experimental data without fine-tuning, even if absolute proton stability is relaxed.

More Related Videos

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K

Related Experiment Videos

Last Updated: Feb 16, 2026

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method
07:38

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method

Published on: April 18, 2019

34.6K
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K
Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

21.2K

Area of Science:

  • Particle Physics
  • Grand Unified Theories
  • Standard Model Physics

Background:

  • Grand Unified Theories (GUTs) aim to unify fundamental forces.
  • SU(5) GUTs are a leading candidate, but often predict proton decay.
  • Proton stability is a key experimental constraint.

Purpose of the Study:

  • To construct a four-dimensional SU(5) grand unified theory.
  • To ensure proton stability within this framework.
  • To reconcile theoretical predictions with experimental observations.

Main Methods:

  • Constructing a four-dimensional SU(5) model.
  • Assigning standard model particles (leptons and quarks) to specific representations (irreps) of SU(5).
  • Breaking the SU(5) gauge symmetry using scalar fields in 24 and 75 irreps.

Main Results:

  • The model incorporates standard model leptons in 5 and 10 irreps, and quarks in 40 and 50 irreps.
  • Proton stability is achieved by imposing three specific relations between model parameters.
  • Non-standard model fields are assigned high masses.
  • The model satisfies current experimental constraints without fine-tuning, even when relaxing absolute proton stability.

Conclusions:

  • A viable four-dimensional SU(5) grand unified theory is proposed.
  • Proton stability can be a feature of such theories under specific conditions.
  • The model offers a potential pathway to unify fundamental forces while respecting experimental limits.