Related Experiment Video

Updated: Jan 19, 2026

Oxygen Revolution and Early Colonization of Land
02:22

Oxygen Revolution and Early Colonization of Land

37.3K

The Royal Navy Operating Department Practitioner: Perioperative care on land and sea

Glenn Long1, Gareth Jones2, David Roper3

  • 1Royal Centre for Defence Medicine, Queen Elizabeth Hospital Birmingham, Birmingham, UK.

Related Concept Videos

The Colonization of Land02:22

The Colonization of Land

Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
37.3K
Gastric Point of Care Ultrasound in Adults: Image Acquisition and Interpretation05:50

Gastric Point of Care Ultrasound in Adults: Image Acquisition and Interpretation

This protocol introduces two methods for image acquisition in gastric ultrasonography. Additionally, tips are provided for interpreting this information to assist in medical...
4.3K
A Robotic Platform to Study the Foreflipper of the California Sea Lion08:53

A Robotic Platform to Study the Foreflipper of the California Sea Lion

A robotic platform is described that will be used to study the hydrodynamic performance—forces and flowfields—of the swimming California sea lion. The robot is a model of the animal's foreflipper that is actuated by motors to replicate the motion of its propulsive stroke (the...
8.3K
Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information10:28

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Sea surface chlorophyll, temperature, sea level height, wind, and front data obtained or derived from satellite observations offer an effective way to characterize the ocean. Presented is a method for the comprehensive study of these data, including overall average, seasonal cycle, and intercorrelation analyses, to fully understand regional dynamics...
6.3K
Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment04:00

Identifying Frailty Using Point-of-Care Ultrasonography: Image Acquisition and Assessment

Here, we present a protocol to assess frailty in the perioperative setting using point-of-care ultrasound to measure quadriceps thickness. This method offers a practical, non-invasive alternative to traditional assessment methods, potentially enhancing perioperative care by quickly identifying frail...
1.2K
A Mouse Tumor Model of Surgical Stress to Explore the Mechanisms of Postoperative Immunosuppression and Evaluate Novel Perioperative Immunotherapies13:37

A Mouse Tumor Model of Surgical Stress to Explore the Mechanisms of Postoperative Immunosuppression and Evaluate Novel Perioperative Immunotherapies

A mouse tumor model of surgical stress is used to explore how postoperative immune suppression promotes metastatic disease and to evaluate immunostimulatory perioperative...
30.5K