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Disorder caused by dissolved gases forming bubbles in tissues
bubbles inside the body tissues during decompression. DCS most commonly occurs during or soon after a decompression ascent from underwater diving, but can
Decompression_sickness
Unplanned drop in the pressure of a sealed system
or fail to pressurize at all. Such decompression may be classed as explosive, rapid, or slow: Explosive decompression (ED) is violent and too fast for air
Uncontrolled_decompression
Topics referred to by the same term
Decompression has several meanings, some of which are covered by several articles: Data decompression, the action of reversing data compression Decompression
Decompression
Pressure reduction and its effects during ascent from depth
diver may decompress, depending on the dive profile and the mode of diving used. These may be described as decompression modes. Decompression may be continuous
Decompression_(diving)
Diving mode and decompression technique
time required for decompression to surface pressure will not increase with longer exposure. The diver undergoes a single decompression to surface pressure
Saturation_diving
examples include decompressive craniectomy (removal of part of the skull to relieve pressure on the brain), a spinal decompression to relieve pressure
Decompression_(surgery)
Injury due to pressure difference between gas filled space and adjoining tissue
volume involved already exists prior to decompression. Barotrauma can occur during both compression and decompression events. Barotrauma generally manifests
Barotrauma
Hyperbaric pressure vessel for human occupancy used in diving operations
of long decompressions underwater, in cold or dangerous conditions. A decompression chamber may be used with a closed bell for decompression after bounce
Diving_chamber
Techniques and procedures for safe decompression of divers
prevent or minimize decompression sickness, divers must properly plan, conduct, and monitor decompression. Divers follow a decompression model to allow the
Decompression_practice
Reduction in pressure to lower than normal sea level atmospheric pressure
Hypobaric decompression is the reduction in ambient pressure below the normal range of sea level atmospheric pressure. Altitude decompression is hypobaric
Hypobaric_decompression
Death of bone tissue due to interruption of the blood supply
Most of the time surgery is eventually required and may include core decompression, osteotomy, bone grafts, or joint replacement. About 15,000 cases occur
Avascular_necrosis
Underwater diving to a depth beyond the norm
to do decompression stops increases with depth. A diver at 6 metres (20 ft) may be able to dive for many hours without needing to do decompression stops
Deep_diving
Equipment used by divers to facilitate decompression
ambient pressures. Decompression obligation for a given dive profile must be calculated and monitored to ensure that the risk of decompression sickness is controlled
Decompression_equipment
compressed, a decompression algorithm is invoked to perform a trial decompression. If the decompressor does not produce an error, the decompressed data is processed
Optimistic_decompression
Theoretical modelling of decompression physiology
to provide acceptable safety from decompression sickness in the shortest time spent decompressing, and decompression safety, or converely, risk, is measured
Decompression_theory
Rule of thumb for estimating a decompression schedule for a given set of breathing gases
Ratio decompression (usually referred to in abbreviated form as ratio deco) is a technique for calculating decompression schedules for scuba divers engaged
Ratio_decompression
Swimming underwater, breathing gas carried by the diver
depends on the level of decompression stress and the risk of symptomatic decompression developing. Symptomatic decompression illness may develop during
Scuba_diving
Tabulated data to facilitate safe diving ascents
determine a decompression schedule that is acceptably safe for a given dive or other hyperbaric exposure profile and breathing gas. Decompression tables represent
Decompression_tables
Mathematical model of tissue inert gas uptake and release with pressure change
sets are used to create decompression tables and in personal dive computers to compute no-decompression limits and decompression schedules for dives in
Bühlmann decompression algorithm
Bühlmann_decompression_algorithm
Surgical procedure relieving nerve pressure
nerve decompression for deep gluteal syndrome pudendal nerve decompression for pudendal neuralgia lateral femoral cutaneous nerve (LFCN) decompression for
Nerve_decompression
Relief of pressure on the spinal cord or compressed nerve roots
Spinal decompression is the relief of pressure on the spinal cord or on one or more compressed nerve roots passing through or exiting the spinal column
Spinal_decompression
Physiological basis for decompression theory and practice
exposure profile. Efficient decompression requires the diver to ascend fast enough to establish as high a decompression gradient, in as many tissues
Physiology_of_decompression
Compact encoding of digital data
to as an encoder, and one that performs the reversal of the process (decompression) as a decoder. The process of reducing the size of a data file is often
Data_compression
Disorders arising from ambient pressure reduction
Decompression Illness (DCI) comprises two different conditions caused by rapid decompression of the body. These conditions present similar symptoms and
Decompression_illness
Neurosurgical procedure
Microvascular decompression (MVD), also known as the Jannetta procedure, is a neurosurgical procedure used to treat trigeminal neuralgia (along with other
Microvascular_decompression
Malicious archive file designed to disrupt the program or system reading it
In computing, a zip bomb, also known as a decompression bomb or zip of death (ZOD), is a malicious archive file designed with the goal to crash or freeze
Zip_bomb
Semi-submersible offshore drilling rig
was the site of several serious incidents, most notably an explosive decompression in 1983 that killed four divers and one dive tender, as well as critically
Byford_Dolphin
[clarification needed] No benefits of abdominal decompression have been found in healthy pregnant women. Abdominal decompression has no effect on blood pressure of
Abdominal_decompression
Decompression model developed by John Scott Haldane
Haldane's decompression model is a mathematical model for decompression to sea level atmospheric pressure of divers breathing compressed air at ambient
Haldane's_decompression_model
Techniques requiring specific equipment and procedures
the decompression gases may be similar, or may include pure oxygen. Decompression procedures include in-water decompression or surface decompression in
Modes_of_underwater_diving
Instrument to calculate decompression status in real time
A dive computer, personal decompression computer or decompression meter is a device used by an underwater diver to measure the elapsed time and depth
Dive_computer
Medical treatment at raised ambient pressure
as decompression sickness and gas embolism, It is still considered the definitive treatment for these conditions. The chamber treats decompression sickness
Hyperbaric_medicine
Means of compressing an executable file
compressed data with decompression code into a single executable. When this compressed executable is executed, the decompression code recreates the original
Executable_compression
1985 aviation accident in Japan
flying the route suffered a severe structural failure and explosive decompression 12 minutes after takeoff. After flying under minimal control for 32
Japan_Air_Lines_Flight_123
Chamber for transporting divers vertically through the water
to do surface decompression on oxygen (SurDO2) in the chamber. The relative safety of surface decompression and in-water decompression is uncertain. Both
Diving_bell
The objective of condylar decompression, also called jugular decompression and occipital release, is to balance the reciprocal tension membrane at the
Condylar_decompression
Breathing gas, mixture of nitrogen and oxygen
practicable underwater dive time by reducing the decompression requirement, or reducing the risk of decompression sickness (also known as the bends). The two
Nitrox
Stylistic storytelling choice
use of decompression, most notably those who are directly influenced by manga, like Bryan Lee O'Malley. Some French comic books use decompression as a storytelling
Decompression_(comics)
English broadcaster and natural historian (born 1926)
weights Weight belt Decompression equipment Decompression buoy Decompression chamber Decompression cylinder Decompression tables Decompression trapeze Dive computer
David_Attenborough
File format and file compression program
program. Mark Adler wrote the decompression part. gzip is now developed by the GNU project. As the file format can be decompressed via a streaming algorithm
Gzip
Substantial weighted near-vertical line with buoy
used for decompression and frees the main shot line for other divers. The lazy shot's line does not need to be longer than the decompression depth and
Diving_shot
Diving beyond the scope of recreational diving
long or deep dive may need to do decompression stops or remain below a decompression ceiling to avoid decompression sickness, also known as "the bends"
Technical_diving
Rock formed through the cooling and solidification of magma or lava
basalt magmatism of several large igneous provinces.[citation needed] Decompression melting occurs because of a decrease in pressure. The solidus temperatures
Igneous_rock
Underwater diving at altitudes above 300 m
significant in diving because it affects the decompression requirement for a dive, so that the stop depths and decompression times used for dives at altitude are
Altitude_diving
Australian conservationist (1962–2006)
weights Weight belt Decompression equipment Decompression buoy Decompression chamber Decompression cylinder Decompression tables Decompression trapeze Dive computer
Steve_Irwin
damage to tissues generally known as decompression sickness or the bends. The immediate goal of controlled decompression is to avoid development of symptoms
History of decompression research and development
History_of_decompression_research_and_development
Vascular blockage by air bubbles
usually obvious and may present quite differently from decompression sickness. Decompression sickness: Inert gas bubbles form in the bloodstream if the
Air_embolism
Early diving decompression model
The thermodynamic model was one of the first decompression models in which decompression is controlled by the volume of gas bubbles coming out of solution
Thermodynamic model of decompression
Thermodynamic_model_of_decompression
Breathing gas consisting of oxygen, helium and nitrogen
the higher loading in some tissues is that some decompression algorithms require deeper decompression stops than a similar pressure exposure dive using
Trimix_(breathing_gas)
Joint pain caused by fast compression to high ambient pressure
persist into decompression. Symptoms may be distinguished from decompression sickness as they are present before starting decompression, and resolve with
Compression_arthralgia
Unit of pressure equal to one tenth of a bar
converted to absolute pressure in bar or atm for decompression and gas consumption calculation, but decompression tables are usually provided ready for use directly
Metre_sea_water
Gas used for human respiration
performance of ordinary air by reducing the risk of decompression sickness, reducing the duration of decompression, reducing nitrogen narcosis or reducing work
Breathing_gas
Descending below the surface of the water to interact with the environment
the decompression gases may be similar, or may include pure oxygen. Decompression procedures include in-water decompression or surface decompression in
Underwater_diving
Data compression algorithm
of decompression LZO supports overlapping compression and in-place decompression. As a block compression algorithm, it compresses and decompresses blocks
Lempel–Ziv–Oberhumer
Medical intervention
Facial nerve decompression is a type of nerve decompression surgery where abnormal compression on the facial nerve is relieved. Pressure and compression
Facial_nerve_decompression
1989 aviation accident over the Pacific Ocean
(1985) – rapid decompression caused by a faulty repair in the tail section Aloha Airlines Flight 243 (1988) – explosive decompression caused by metal
United_Airlines_Flight_811
Lossless compression algorithm
hardware compression and decompression using QuickAssist Technology. Depending on the chipset, compression and decompression rates of 5 Gbit/s, 10 Gbit/s
Deflate
Dizziness with sensation of moving or surrounding objects moving
of decompression sickness in 5.3% of cases by the U.S. Navy, as reported by Powell, 2008, including isobaric decompression sickness. Decompression sickness
Vertigo
Kidd, Canadian decompression researcher, Kidd–Stubbs decompression model, DCIEM decompression tables Eric P. Kindwall – Decompression sickness treatment
List of researchers in underwater diving
List_of_researchers_in_underwater_diving
Neurosurgical procedure to treat swelling
Decompressive craniectomy (crani- + -ectomy) is a neurosurgical procedure in which part of the skull is removed to allow a swelling or herniating brain
Decompressive_craniectomy
Basis for the published decompression tables and algorithms
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been
US Navy decompression models and tables
US_Navy_decompression_models_and_tables
2012 novel by Juli Zeh
"Decompression review – award-winning thriller about diving and bickering in Lanzarote". The Guardian. Retrieved 13 September 2023. "Decompression".
Decompression_(novel)
Formation of vapour bubbles in bodily fluids due to reduced environmental pressure
and is often accompanied by complications caused by rapid decompression, such as decompression sickness and a variety of barotrauma injuries. Persons at
Ebullism
Compression of the ulnar nerve in the elbow
weakness or muscle atrophy. Generally, there are two types of procedures, decompression versus transposition. Clinical improvement has been shown to be equivalent
Cubital_tunnel_syndrome
Application of balanced forces which push inwards on an object
the volumetric strain. The inverse process of compression is called decompression, dilation, or expansion, in which the object enlarges or increases in
Compression_(physics)
Surgical removal of a lamina
Failed back syndrome Spinal stenosis Nerve compression syndrome Nerve decompression Vertebra Spinal canal "Laminectomy". Mayo Clinic. 1 July 2020. Retrieved
Laminectomy
Lossless data compression software
version 5.2.0; since version 5.4.0 threaded decompression has been implemented. Threaded decompression requires multiple compressed blocks within a stream
XZ_Utils
Toxic effects of breathing oxygen at high partial pressures
ascend to a shallower depth if decompression obligations allow. If a chamber is available at the surface, surface decompression is a recommended option. The
Oxygen_toxicity
Emergency transport of divers under a decompression obligation to a place of safety
hyperbaric transportation of divers under a major decompression obligation to a place of safety where decompression can be completed at acceptable risk and in
Hyperbaric evacuation and rescue
Hyperbaric_evacuation_and_rescue
Type of short deep decompression stops in addition to the standard profile
type of short, optional deep decompression stop performed by scuba divers at depths well below the first decompression stop mandated by a conventional
Pyle_stop
Medical condition caused by inert gas bubbles forming out of solution
Inner ear decompression sickness, (IEDCS) or audiovestibular decompression sickness is a medical condition of the inner ear caused by the formation of
Inner ear decompression sickness
Inner_ear_decompression_sickness
Occupational activity in an atmosphere with a raised ambient pressure
staged decompression is not required regardless of exposure time (gauge pressure below 0.7 bar), "intermediate pressures" requiring stage decompression, but
Work_in_compressed_air
Estimation of breathing gas mixtures and quantities required for a planned dive profile
depending on the individual diver. limitations on no-decompression stop diving and decompression duration due to solution of nitrogen in the body tissues
Scuba_gas_planning
2024 aviation accident over Oregon
uncontrolled decompression, two injuries), 1990 American Airlines Flight 96 (cargo door failure due to design flaw leading to uncontrolled decompression, eleven
Alaska_Airlines_Flight_1282
1988 aviation accident over the Pacific Ocean
airplane serving the flight suffered extensive damage after an explosive decompression in flight, caused by part of the fuselage breaking due to poor maintenance
Aloha_Airlines_Flight_243
Thermodynamic process in which no mass or heat is exchanged with surroundings
An adiabatic process (adiabatic from Ancient Greek ἀδιάβατος (adiábatos) 'impassable') is a type of thermodynamic process whereby a transfer of energy
Adiabatic_process
Annual experimental event in Nevada, US
Burning Man is a week-long large-scale desert event focused on "community, art, self-expression, and self-reliance" held annually in the Western United
Burning_Man
Gaseous diffusion through body tissue at constant total pressure
not strictly speaking a phenomenon of decompression, it is a complication that can occur during decompression, and that can result in the formation or
Isobaric_counterdiffusion
compression and decompression for a given compression algorithm. If an algorithm takes the same time to compress a data archive as it does to decompress it, it
Data_compression_symmetry
Human habitable underwater enclosure filled with breathable gas
under pressure to a decompression chamber on the support vessel for safer decompression. Deck decompression chamber (DDC) A decompression chamber on the support
Underwater_habitat
Underwater diving breathing gas supplied from the surface
dive at surface pressure. The diver is decompressed during the ascent or by surface decompression in a decompression chamber. It may also be referred to
Surface-supplied_diving
Difference between the partial pressures of oxygen in arterial blood and body tissues
by using decompression gases with high PO2 increases decompression efficiency and allows shorter decompression stops. Reducing decompression time can
Oxygen_window
Submarine sinkhole north of Dahab, Egypt
tunnel inevitably makes this a decompression dive requiring decompression stops on ascent in order to avoid decompression sickness (DCS). Also, the rate
Blue_Hole_(Red_Sea)
Gas law regarding proportionality of dissolved gas
underwater divers that changes during decompression, possibly causing decompression sickness if the decompression happens too quickly. An everyday example
Henry's_law
Diving in water-filled caves
of the cave along the dive route will constrain decompression depths, and gas mixtures and decompression schedules can be tailored to take this into account
Cave_diving
Disease of the bony spine that results in narrowing of the spinal canal
laminoplasty. Decompression plus fusion appears no better than decompression alone, while spinal spacers appear better than decompression plus fusion but
Spinal_stenosis
American cave and deep diving pioneer and record breaker
2021[update]. His carefully planned multistage decompressions from these dives, in open water (not in a decompression tank), sometimes required times of as much
Sheck_Exley
Underwater diving procedures
greater or equal to their first decompression stop, transferred under pressure into a decompression chamber and decompressed back to surface pressure in the
Surface-supplied diving skills
Surface-supplied_diving_skills
Partial loss of sensitivity to sensory stimuli
disorder Beriberi Decompression sickness occurs during rapid ascent, spanning 20 or more feet (typically from underwater). Decompression sickness may express
Hypoesthesia
Ship used as a floating base for professional diving projects
involves only one decompression, thereby avoiding the time-consuming and comparatively risky process of in-water, staged decompression or sur-D O2 operations
Diving_support_vessel
Equipment used in the support of an underwater diving operation
space Decompression buoy – Inflatable surface marker buoy deployed from underwater Decompression trapeze – Horizontal bars suspended at decompression stop
Diving_support_equipment
Buoy towed by a scuba diver to indicate position
and maintaining one's position while doing decompression stops are shot-lines, uplines and decompression trapezes. A closed DSMB, inflated through a
Surface_marker_buoy
File format and file compression program
bzip2 program to compress or decompress the archive. GnuPG also has built-in support for bzip2 compression and decompression. Free and open-source software
Bzip2
Shoulder injury
decompression alone tend to degrade with time, but the combination of repair and decompression appears to be more enduring. Subacromial decompression
Rotator_cuff_tear
Facility for supporting saturation diving projects
time required for decompression to surface pressure will not increase with longer exposure. The diver undergoes a single decompression to surface pressure
Saturation_diving_system
Mathematical model for diver decompression
Algorithm (VVAL 18) is a deterministic decompression model originally designed in 1980 to produce a decompression schedule for divers using the US Navy
Thalmann_algorithm
Narrowing of the lower spinal canal
controlled trials suggest that decompression with fusion does not provide additional long-term benefit compared to decompression alone, while incurring greater
Lumbar_spinal_stenosis
Entry level recreational diving certification from CMAS
The training programme enables divers to undertake accompanied no-decompression dives to a maximum depth of 20 meters in open water. Other countries
CMAS*_scuba_diver
Diver's pressure exposure over the time of a dive
an indication of the risks of decompression sickness and oxygen toxicity for the exposure, to calculate a decompression schedule for the dive, and also
Dive_profile
Removal of fluids/air from the pleural cavity of the lungs
'pricking, puncture'), pleural tap, needle thoracostomy, or needle decompression (often used term), is an invasive medical procedure to remove fluid
Thoracentesis
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Boy/Male
Indian, Punjabi, Sikh
Love for the Lord
Girl/Female
Hindu
Pearl
Boy/Male
Hindu
Boy/Male
Indian, Punjabi, Sikh
Wisdom; Angel; Trust; And Loved
Male
Greek
(Ἰεφθάε) Greek form of Hebrew Yiphtach (English Jephtha), IEPHTHAE means "he opens" or "whom God sets free." In the bible, this is the name of a city and the name of a son of Gilead.Â
Boy/Male
Muslim
Praiseworthy, Commendable
Girl/Female
Arabic
Soft
Female
Romanian
Pet form of Romanian Ileana, possibly LENUTA means "torch."
Boy/Male
Egyptian
Smoke.
Boy/Male
Hindu, Indian, Traditional
Lotus
DECOMPRESSION
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