Longitudinal

Examples of Longitudinal in the following topics:

• Longitudinal Waves

  • An example of a longitudinal wave is a sound wave.
  • Some longitudinal waves are also called compressional waves or compression waves.
  • Like transverse waves, longitudinal waves do not displace mass.
  • Longitudinal waves can sometimes also be conceptualized as pressure waves.
  • A compressed Slinky is an example of a longitudinal wave.

• Longitudinal and Transverse Waves

  • Sound waves are longitudinal waves.
  • As it comes from behind you, a transverse waves lifts you up and then drops down; a longitudinal wave coming from behind pushes you forward and pulls you back.
  • single particles being disturbed by a transverse wave or by a longitudinal wave (http://cnx.org/content/m13246/latest/Pulses.swf);
  • (There were also some nice animations of longitudinal waves available as of this writing at Musemath. )
  • The "highs and lows" of sound waves and other longitudinal waves are arranged in the "forward" direction.

• Muscularis

  • The muscularis externa consists of an inner circular layer and a longitudinal outer muscular layer.
  • The circular muscle layer prevents food from traveling backward and the longitudinal layer shortens the tract.
  • The layers are not truly longitudinal or circular, rather the layers of muscle are helical with different pitches.
  • The inner circular is helical with a steep pitch and the outer longitudinal is helical with a much shallower pitch.
  • The outer longitudinal layer of the colon thins out into three discontinuous longitudinal bands known as tiniae coli (bands of the colon).

• Methods for Researching Human Development

  • These include longitudinal, cross-sectional, sequential, and microgenetic designs.
  • In a longitudinal study, a researcher observes many individuals born at or around the same time (a cohort) and carries out new observations as members of the cohort age.
  • Longitudinal studies often require large amounts of time and funding, making them unfeasible in some situations.
  • Cross-sequential designs combine both longitudinal and cross-sectional design methodologies.
  • In a longitudinal study, a researcher observes many individuals born at or around the same time and observes them as they age.

• Inputs

  • The main inputs of forecasting include time series, cross-sectional and longitudinal data, or using judgmental methods.
  • Both might refer to formal statistical methods employing time series, cross-sectional or longitudinal data, or less formal judgmental methods.
  • Cross-sectional data differs from time series data also known as longitudinal data, which follows one subject's changes over the course of time.
  • A longitudinal study is a correlational research study that involves repeated observations of the same variables over long periods of time — often many decades.
  • Because of this benefit, longitudinal studies make observing changes more accurate, and they are applied in various other fields.

• Arches of the Feet

  • The two longitudinal arches and a transverse arch are maintained by the interlocking shapes of the foot bones, strong ligaments, and pulling muscles during activity.
  • The longitudinal arch of the foot can be broken down into several smaller arches.
  • As can be examined in a footprint, the medial longitudinal arch curves above the ground.
  • In contrast, the lateral longitudinal arch is very low.
  • In addition to the longitudinal arches, the foot presents a series of transverse arches.

• Waves

  • A wave can be transverse or longitudinal depending on the direction of its oscillation.
  • Longitudinal waves occur when the oscillations are parallel to the direction of propagation.
  • While mechanical waves can be both transverse and longitudinal, all electromagnetic waves are transverse.
  • Sound, for example, is a longitudinal wave.
  • In this chapter we will closely examine the difference between longitudinal and transverse waves along with some of the properties they possess.

• Water Waves

  • Water waves can be commonly observed in daily life, and comprise both transverse and longitudinal wave motion.
  • The uniqueness of water waves is found in the observation that they comprise both transverse and longitudinal wave motion.
  • In the case of monochromatic linear plane waves in deep water, particles near the surface move in circular paths, creating a combination of longitudinal (back and forth) and transverse (up and down) wave motions.
  • This is a result of the wave having both transverse and longitudinal properties.

• Development of the Central Nervous System

  • The CNS originally develops from a longitudinal groove on the neural plate that forms the rudimentary nervous system.
  • During early development of the vertebrate embryo, a longitudinal groove on the neural plate gradually deepens and the ridges on either side of it (the neural folds) become elevated and ultimately meet, transforming the groove into a closed tube, the ectodermal wall of which forms the rudiment of the nervous system.

• Characteristics of Sound

  • Sound is a longitudinal wave of pressure that travels through compressible medias, which can be solid, liquid, gaseous, or made of plasma.
  • Sound is a wave—a longitudinal wave of pressure that travels through compressible medias (i.e., solid, liquid, gaseous, or made of plasma).
  • Sound travels in longitudinal waves.