### activity:

Muscular activity
* Some muscular activities generate heat.
* accounts for most of the body's energy consumption
  - much of the body's energy consumption
* is highest in the acceleration phase.
* occurs as a result of the mind 'willing' an action.

### activity:

Navigation
* Some navigation uses angular measurements.
* challenge for blind and visually impaired users.
* has many dimensions in web design.
* is an equal opportunity employer committed to employing a team of diverse professionals
  - direction
  - important to the surfing community
  - satellite navigation
  - steering
  - the holy grail of Web design
  - transportation
  - used for smaller webs that implement themes, or shared borders
* key element of space travel.
* leads to collisions.
* nonlinear process with multiple paths.
* way to plan the safest and most efficient course from one place to another.

### activity | navigation:

Celestial navigation
* Some celestial navigation uses angular measurements
* is navigation.
* makes possible voyages across thousands of miles of unmarked water
  - voyages of a thousad miles in unmarked waters possible
* method used usually out in the open sea.

Satellite navigation
* can also help pilots to land planes safely, especially in poor weather.
* is on the horizon.

Neural activity
* is surely the basis of both behavioural capacity and mental states.
* predicts attitude change in cognitive dissonance.

Nocturnal activity
* Nocturnal activities have advantage
  - distinct advantage
* enables species to avoid daytime extremes in temperature.

Occlusion
* Sounds that originate from a sound source behind a wall or door or other solitary object.
* are attacks
  - positions
* is an attack
* occurs only to the extent that surfaces are opaque.
* refers to closure.
* remains the major untreated disease in dentistry.

### activity | occlusion:

Embolism
* are blockages of blood vessels.
* can be life-threatening conditions.
* is an occlusion
  - diseases
  - part of calendars
  - the killer, bends the injurer
  - time intervals

### activity | occlusion | embolism:

Pulmonary embolism
* can be difficult to detect
  - fatal
* common cause of sudden death in perioperative brain tumor patients.
* frequent and potentially fatal disorder.
* is difficult to diagnose
  - embolism
  - lung diseases
  - the most feared cause of chest pain when breathing
* occurs when a clot circulates and lodges in the lungs and can cause sudden death.
* refers to the presence of blood clots in the blood vessels of the lungs.
* requires immediate medical care.
* serious condition that requires immediate medical attention.
* very serious condition and one of the leading causes of sudden death.

Punctal occlusion
* acts very much like a stopper in a sink.
* can prolong the activity of artificial tears.
* is safe for women who develop dry-eye symptoms while taking oral contraceptives.
* minor surgery that closes the ducts that drain tears away from the eyes.

Thromboembolism
* are occlusions.
* is an obstruction of a blood vessel by a blood clot
  - currently the leading cause of maternal mortality
* poses a significant risk of sudden incapacitation.
* remains a serious complication of mechanical heart valve prostheses.

### activity | occlusion | thromboembolism:

Pulmonary thromboembolism
* can lead to death
  - occur secondary to hyperadrenocorticism and is often fatal
* commonly recognised disorder in human medicine.