In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.
Acoustics is the interdisciplinary science that deals with the study of mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound, and infrasound. A scientist who works in the field of acoustics is an acoustician, while someone working in the field of acoustical engineering may be called an acoustical engineer. An audio engineer, on the other hand is concerned with the recording, manipulation, mixing, and reproduction of sound.
Applications of acoustics are found in almost all aspects of modern society, subdisciplines include aeroacoustics, audio signal processing, architectural acoustics, bioacoustics, electro-acoustics, environmental noise, musical acoustics, noise control, psychoacoustics, speech, ultrasound, underwater acoustics, and vibration.
Sounding or urethral sounding is the medical use of probes called sounds to increase the inner diameter of the urethra and to locate obstructions in it. Sounds are also used to stretch the urethra in order to receive genital piercing.
Urethral sounding and urethral play are also used to refer to this practice in a sexual context.
Urethral play can involve the introduction of either soft or rigid items into the meatus of the penis (as well as farther in). Objects such as sounds are usually only inserted about halfway into the glans and can usually be easily retrieved. Other toys and items, such as catheters, may be introduced deeper; in some cases even into the bladder. Some items may even be allowed to curl several times or expand within the bladder. This action in the male may be directly or indirectly associated with stimulation of the prostate gland and some types of bladder control.
If not conducted carefully, sounding carries a risk of irritation, tearing of the urethra, or of urinary tract infection. Infections may become serious if they progress to the bladder or kidneys, and should be referred to a doctor.
In nautical terms, the word sound is used to describe the process of determining the depth of water in a tank or under a ship. Tanks are sounded to determine if they are full (for cargo tanks) or empty (to determine if a ship has been holed) and for other reasons. Soundings may also be taken of the water around a ship if it is in shallow water to aid in navigation.
Tanks may be sounded manually or with electronic or mechanical automated equipment. Manual sounding is undertaken with a sounding line- a rope with a weight on the end. Per the Code of Federal Regulations, most steel vessels with integral tanks are required to have sounding tubes and reinforcing plates under the tubes which the weight strikes when it reaches the bottom of the tank. Sounding tubes are steel pipes which lead upwards from the ships' tanks to a place on deck.
Electronic and mechanical automated sounding may be undertaken with a variety of equipment including float level sensors, capacitance sensors, sonar, etc.
Drebrin is a protein that in humans is encoded by the DBN1 gene.
The protein encoded by this gene is a cytoplasmic actin-binding protein thought to play a role in the process of neuronal growth. It is a member of the drebrin family of proteins that are developmentally regulated in the brain. A decrease in the amount of this protein in the brain has been implicated as a possible contributing factor in the pathogenesis of memory disturbance in Alzheimer's disease. At least two alternative splice variants encoding different protein isoforms have been described for this gene.
Model organisms have been used in the study of DBN1 function. A conditional knockout mouse line called Dbn1tm1b(KOMP)Wtsi was generated at the Wellcome Trust Sanger Institute. Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion. Additional screens performed: - In-depth immunological phenotyping
DBN may refer to:
DBN is a German artist and record producer trio from Hamburg. Its members are Djani Dzihan, Tobias Hahn, Patrick Kroepels.
DBN's remix of John Dahlbäck's Everywhere and the single The Nighttrain were released in 2007. After various productions and remixes for Sebastian Ingrosso, EDX, Eddie Thoneick, Roger Sanchez, Bob Sinclar, Erick Morillo, Dirty South, Steve Angello, Laidback Luke, Wippenberg, Jean Elan and 2raumwohnung, DBN released their single Asteroidz. This was followed by Jack Is Back, which reached number 1 in the German dance charts). My Belief, which they made with Syke‘n’Sugarstarr and Cosmo Klein, also topped the German dance charts, as did Chicago. For these, DBN was recognised as the "Top Single Act National 2010".
In the recent past, DBN have worked on remixes for Tim Berg, Norman Doray and Sebastien Drums, Nalin & Kane, Medina, Danny Freakazoid and German pop acts Ich+Ich, made the singles Bomjacker, Buckshee, and made Sushi EP with Patric la Funk.