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

Effect of Sea Water on Concrete01:22

Effect of Sea Water on Concrete

546
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
546
Issues And Trends In Healthcare Delivery System01:29

Issues And Trends In Healthcare Delivery System

5.9K
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
5.9K
Global Climate Change01:50

Global Climate Change

25.7K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
25.7K
Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

12.8K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.8K
Coriolis Force01:23

Coriolis Force

4.6K
An accelerating particle experiences a force equal to the mass multiplied by the acceleration in an inertial frame of reference. Consider a particle in a non-inertial frame of reference, such as a sliding ball on a rotating table. The acceleration of the ball in this rotating reference frame is different than in the intertial frame, which modifies its equation of motion. The fictitious forces acting additionally on a rotating frame of reference alter Newton's Second Law expression.
4.6K
Threats to Biodiversity01:50

Threats to Biodiversity

24.0K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
24.0K

You might also read

Related Articles

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

Sort by
Same author

The Caprera Canyon (north-eastern Sardinia): A hotspot of cetacean diversity in the western Mediterranean Sea.

PloS one·2025
Same author

Saliency-Aided Online RPCA for Moving Target Detection in Infrared Maritime Scenarios.

Sensors (Basel, Switzerland)·2023
Same author

A reconciling vision of the Adriatic-Ionian Bimodal Oscillating System.

Scientific reports·2023
Same author

Information sharing through digitalisation in decentralised supply chains.

Annals of operations research·2022
Same author

Replenishing Alkali During Hemodialysis: Physiology-Based Approaches.

Kidney medicine·2022
Same author

Decision-making algorithms for learning and adaptation with application to COVID-19 data.

Signal processing·2021

Related Experiment Video

Updated: Oct 20, 2025

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples
09:26

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples

Published on: June 30, 2023

1.3K

COVID-19 impact on global maritime mobility.

Leonardo M Millefiori1, Paolo Braca2, Dimitris Zissis3,4

  • 1Research Department, NATO STO Centre for Maritime Research and Experimentation, 19126, La Spezia, Italy.

Scientific Reports
|September 11, 2021
PubMed
Summary

The COVID-19 pandemic caused a significant global drop in maritime shipping mobility, impacting all commercial vessel types. Analysis of Automatic Identification System data reveals reduced activity from March to June 2020 due to containment measures.

More Related Videos

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
03:53

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Published on: November 10, 2023

1.5K
Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies
15:00

Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies

Published on: February 3, 2023

2.7K

Related Experiment Videos

Last Updated: Oct 20, 2025

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples
09:26

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples

Published on: June 30, 2023

1.3K
Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
03:53

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses

Published on: November 10, 2023

1.5K
Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies
15:00

Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies

Published on: February 3, 2023

2.7K

Area of Science:

  • Maritime Logistics
  • Epidemiology
  • Data Science

Background:

  • COVID-19 containment measures drastically altered global social and economic activities.
  • The shipping industry, responsible for over 80% of world trade, was significantly impacted by these changes.
  • Understanding these impacts is crucial for economic recovery and future supply chain resilience.

Purpose of the Study:

  • To quantitatively assess the effects of the COVID-19 pandemic and associated containment measures on global maritime shipping activity.
  • To analyze changes in ship mobility patterns, routes, and operational efficiency using comprehensive maritime traffic data.
  • To establish a baseline for future disruptions by comparing 2020 mobility to pre-pandemic trends.

Main Methods:

  • Utilized a global network of Automatic Identification System (AIS) receivers to collect a trillion AIS messages from 50,000 ships.
  • Computed multiple data-driven maritime mobility indexes, including Cumulative Navigated Miles (CNM), active/idle ship counts, and fleet average speed.
  • Generated and compared global and local vessel density maps to visualize changes in shipping routes and operational patterns.

Main Results:

  • An unprecedented decline in maritime mobility was observed across all commercial shipping categories following the COVID-19 outbreak.
  • Reduced activity was most pronounced between March and June 2020, coinciding with stringent global restrictions.
  • Specific mobility variations included: container ships (-5.62% to -13.77%), dry bulk (+2.28% to -3.32%), wet bulk (-0.22% to -9.27%), and passenger traffic (-19.57% to -42.77%).

Conclusions:

  • The COVID-19 pandemic led to a substantial and widespread reduction in global maritime shipping activity.
  • The study highlights the vulnerability of the shipping industry to global health crises and associated containment policies.
  • The comprehensive AIS dataset provides a unique and valuable resource for understanding pandemic impacts on maritime trade.