Jove
Visualize
Contact Us
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 Concept Videos

Short-distance Transport of Resources02:12

Short-distance Transport of Resources

14.5K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
14.5K
Transport Number01:31

Transport Number

219
The transport number is the fraction of the total current carried by an ion in an electrolyte solution. It is defined as the ratio of the current carried by a specific ion to the total current flowing through the solution. The transport number, t, is central to understanding ionic mobility, which describes how fast an ion moves under the influence of an electric field. This link connects the physical behavior of ions in solution to the chemical processes that occur during electrochemical...
219
Carrier-Mediated Transport01:06

Carrier-Mediated Transport

1.6K
Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
1.6K
Rate-Determining Steps03:08

Rate-Determining Steps

30.3K
Relating Reaction Mechanisms
In a multistep reaction mechanism, one of the elementary steps progresses significantly slower than the others. This slowest step is called the rate-limiting step (or rate-determining step). A reaction cannot proceed faster than its slowest step, and hence, the rate-determining step limits the overall reaction rate.
The concept of rate-determining step can be understood from the analogy of a 4-lane freeway with a short-stretch of traffic-bottleneck caused due to...
30.3K
IP3/DAG Signaling Pathway01:11

IP3/DAG Signaling Pathway

12.4K
Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the  phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...
12.4K
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

5.0K
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
5.0K

You might also read

Related Articles

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

Sort by
Same author

Efficacy and safety of vericiguat in patients with heart failure with reduced ejection fraction and asymptomatic hypotension: insights from a multicenter observational cohort study.

BMC cardiovascular disordersยท2026
Same author

Non-invasive differentiation of light chain amyloidosis and multiple myeloma based on Raman spectroscopy analysis using one-dimensional convolutional neural networks.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopyยท2026
Same author

DYNLL1 ubiquitinated and degraded by E3 ligase PRKN regulates cell cycle arrest and apoptosis in lung adenocarcinoma cells.

Discover oncologyยท2024
Same author

Novel Adiposity Indices Are Associated With Poor Prognosis in Heart Failure With Preserved Ejection Fraction Without the Obesity Paradox.

Journal of the American Heart Associationยท2024
Same author

Recent advances of H-intercalated Pd-based nanocatalysts for electrocatalytic reactions.

Dalton transactions (Cambridge, England : 2003)ยท2023
Same author

Alterations of the intestinal microbiome and metabolome in women with rheumatoid arthritis.

Clinical and experimental medicineยท2023

Related Experiment Video

Updated: Apr 26, 2026

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.3K

A hop count based heuristic routing protocol for mobile delay tolerant networks.

Lei You1, Jianbo Li1, Changjiang Wei1

  • 1Information Engineering College, Qingdao University, Qingdao, Shandong 266071, China.

Thescientificworldjournal
|August 12, 2014
PubMed
Summary

This study introduces a novel heuristic routing protocol for delay-tolerant networks (DTNs). The proposed method efficiently handles network partitioning and dynamic topologies using peripatetic packet information for improved routing decisions.

More Related Videos

Foraging Path-length Protocol for Drosophila melanogaster Larvae
07:26

Foraging Path-length Protocol for Drosophila melanogaster Larvae

Published on: April 23, 2016

9.0K

Related Experiment Videos

Last Updated: Apr 26, 2026

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

1.3K
Foraging Path-length Protocol for Drosophila melanogaster Larvae
07:26

Foraging Path-length Protocol for Drosophila melanogaster Larvae

Published on: April 23, 2016

9.0K

Area of Science:

  • Computer Science
  • Network Engineering
  • Distributed Systems

Background:

  • Traditional Mobile Ad Hoc Network (MANET) routing fails in Delay Tolerant Networks (DTNs) due to network partitioning and intermittent connectivity.
  • The unique challenges of DTNs, including long delays and dynamic topologies, necessitate specialized routing solutions.

Purpose of the Study:

  • To propose a novel heuristic routing protocol specifically designed for Delay Tolerant Networks (DTNs).
  • To address the limitations of existing routing protocols in highly dynamic and partitioned network environments.

Main Methods:

  • A hop count-based heuristic routing protocol is developed, leveraging information from peripatetic packets.
  • A custom matrix operation is formally defined to streamline heuristic value calculations.
  • The routing decision-making process is guided by a defined heuristic function.

Main Results:

  • Simulation results demonstrate the effectiveness of the proposed self-adaptive routing protocol.
  • The protocol shows significant advantages in diverse and challenging DTN environments.
  • The heuristic approach improves routing efficiency in partitioned networks.

Conclusions:

  • The proposed hop count-based heuristic routing protocol offers a viable solution for DTN challenges.
  • Matrix manipulation simplifies the calculation of heuristic values for routing decisions.
  • The self-adaptive nature of the protocol ensures robust performance across various DTN scenarios.