### sound | noise:

Scratching
* Is a controversial issue for cat owners.
* also can aid the spread of lice
  - dislodges the eggs providing a potential source of infection to sibling and parents
  - results in premature shedding of patches of winter coat
* are clawings.
* behaviour very natural to cats.
* can actually trigger eczematous rashes
  - become a habit, as can licking the feet
* can break the skin open and increase the chance of infection
* can cause bacteria to enter the bloodstream, so treat itching aggressively
  - bleeding and infection of open sores
  - crusting and scaling on the scalp
  - damage to the skin
  - secondary infection of the scabs
  - the rash to become infected and can cause scarring
  - create wounds, and the skin can become thick and dark, with marked folds, over time
  - further irritate the skin and lead to infection
* can lead to secondary infections when bacteria are scratched into the skin
  - infections, leaving children feeling achy, feverish, or lethargic
* can lead to skin sores and infection
  - skin infections
  - result in reinfestation with mites from the paw or tail
  - severely damage an animal's skin, causing hot spots
* can spread the lice to other parts of the body
  - rash and cause infection
* causes bleeding and secondary infection
  - breaks in the skin allowing the bacteria to get in and upset the skin
  - further irritation, injures the skin, and increases itchiness
* is also a way of keeping their claws healthy and sharp
  - an important behavior for a cat
  - modulated at the corticothalamic center and spinal reflex
* is natural for cats, but it can be both annoying and destructive
* is one behaviour that causes many cat owners some grief
  - of the definitive feline behaviors
  - way of marking territory
  - the very essence of a cat being a cat
* keeps their nails in healthy, tip-top shape.
* leads to skin changes with thickening and an eczematoid appearance
* natural behavior for cats and can be directed to appropriate items
  - felines
  - necessary to remove old claw coverings
  - behaviour for cats
* natural, and needed function of cats.
* normal characteristic of a healthy car
  - exercise for cats
* plays an important role in the development of cutaneous lesions in atopic dermatitis.
* way for cats to maintain their claws.

### sound | noise | scratching:

Constant scratching
* can also cause the skin to split, leaving it prone to infection.
* sign of skin trouble or parasites.

Shot noise
* is associated with the direct flow of current in diodes and bipolar devices
  - caused by current flow flowing though any type of load or resistance
  - shot noise
* very powerful technique to investigate correlations in electronic systems.

Spatter
* are noise
  - paintings
* commonly builds up as banks along the fissure sides to produce spatter ramparts.
* cone A pile of tephra in a small, conic shape which surrounds a volcanic vent.
* is globs of lava thrown through the air

Splash
* are disturbances
  - wetting
* can cause severe irritation and pain
  - produce painful irritation and eye damage
* cause inflammation and blurred vision.
* cause severe irritation, possible corneal burns and eye damage
  - pain, eye damage, and permanent blindness
* is noise

### sound | noise | splash:

Splat
* are slats
  - splashs
  - thin boards that run vertically from the seat to the most upper part of the back
* can be in the solid form, sometimes curved, pierced and carved.

Squeak
- software
* occur when shrinks and gaps develop around different flooring elements.
* result from wood rubbing against wood.