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Auditory phenomenon caused by a filled outer ear canal
The occlusion effect occurs when an object fills the outer portion of a person's ear canal, causing that person to perceive echo-like "hollow" or "booming"
Occlusion_effect
Implementation of an ambient occlusion illumination in computer graphics
Screen space ambient occlusion (SSAO) is a computer graphics technique for efficiently approximating the ambient occlusion effect in real time. It was
Screen space ambient occlusion
Screen_space_ambient_occlusion
Topics referred to by the same term
part of cyclone formation Occlusion culling, or hidden surface determination, a 3D computer graphics process Occlusion effect, an audio phenomenon Occlusive
Occlusion
Computer graphics shading and rendering technique
It is often used as a post-processing effect. Unlike local methods such as Phong shading, ambient occlusion is a global method, meaning that the illumination
Ambient_occlusion
Medical condition
loud hearing of a person's own voice. Possible causes include: The "occlusion effect", caused by an object, such as an unvented hearing aid or a plug of
Autophony
Folk myth
become more obvious when louder external sounds are filtered out. This occlusion effect occurs with seashells and other resonators such as circumaural headphones
Seashell_resonance
Medical condition
Branch retinal vein occlusion is a common retinal vascular disease of the elderly. It is caused by the occlusion of one of the branches of central retinal
Branch_retinal_vein_occlusion
Increased vocal effort in loud environments
Intelligibility (communication) Noise health effects Noise pollution Occlusion effect Whale song Slabbekoorn H, Peet M (July 2003). "Ecology: Birds sing
Lombard_effect
Observer effect (physics) (physics) Observer-expectancy effect (cognitive biases) (cognitive psychology) Occlusion effect (biology) (otology) Octave effect (effects
List_of_effects
Failure of the brain to process input from one eye
quickly. Occlusion amblyopia may be a complication of a hemangioma that blocks some or all of the eye. Other possible causes of deprivation and occlusion amblyopia
Amblyopia
In dentistry, contact between teeth
Occlusion, in a dental context, means simply the contact between teeth. More technically, it is the relationship between the maxillary (upper) and mandibular
Occlusion_(dentistry)
Computer graphics method
self occlusion in real time (self-shadowing is additionally possible), without sacrificing the processor cycles required to create the same effect with
Parallax_occlusion_mapping
Type of pump
wall thickness. The occlusion is typically 10% to 20%, with a higher occlusion for a softer tube material, and a lower occlusion for a harder tube material
Peristaltic_pump
Blockage of blood flow through an artery
Arterial occlusion is a condition involving partial or complete blockage of blood flow through an artery. Arteries are blood vessels that carry oxygenated
Arterial_occlusion
2017 video game
Mass Effect: Andromeda is a 2017 action role-playing game developed by BioWare and published by Electronic Arts. It is the fourth and final major entry
Mass_Effect:_Andromeda
Electroacoustic device
brain normally. Common issues with hearing aid fitting and use are the occlusion effect, loudness recruitment, and understanding speech in noise. Once a common
Hearing_aid
Temporary procedure for trauma patients
Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a minimally-invasive procedure performed during resuscitation of critically-injured
Resuscitative endovascular balloon occlusion of the aorta
Resuscitative_endovascular_balloon_occlusion_of_the_aorta
Outcome that is secondary to the one intended
edema from diseases such as diabetic retinopathy and central retinal vein occlusion. Buprenorphine has been shown experimentally (1982–1995) to be effective
Side_effect
Screening test for hearing
sound in the affected ear. Another theory, however, is based on the occlusion effect described by Tonndorf et al, in 1966. Lower frequency sounds (as made
Weber_test
Medical device for restricting blood flow
limb occlusion pressure (LOP) and recommend a tourniquet pressure based on the measured LOP to set safer and lower tourniquet pressures. Limb occlusion pressure
Tourniquet
Exercise method involving vasculature compression
Blood flow restriction training / Occlusion Training (also abbreviated BFR training) or Occlusion Training or KAATSU is an exercise and rehabilitation
Blood flow restriction training
Blood_flow_restriction_training
Medical treatment
Left atrial appendage occlusion (LAAO), also referred to as left atrial appendage closure (LAAC), is a procedure used to reduce the risk of blood clots
Left atrial appendage occlusion
Left_atrial_appendage_occlusion
Method of treating warts
Duct tape occlusion therapy (DTOT) is a method of treating warts by covering them with duct tape for prolonged periods. The manner in which duct tape
Duct_tape_occlusion_therapy
Phenomenon in psychology
than what is actually needed to cross the occlusion at that speed. Another use of the term "tunnel effect", when talking about long stretches of road
Tunnel_effect
Damage to teeth due to excessive force
teeth will come together differently, and their occlusion will change. When that change has a negative effect on how the teeth occlude, this may cause tenderness
Occlusal_trauma
Technique for increasing rendering speed in computer graphics
PVS is sometimes used to refer to any occlusion culling algorithm (since in effect, this is what all occlusion algorithms compute), although in almost
Potentially_visible_set
Misalignment between upper and lower teeth as the jaws close
then the teeth can align into normal occlusion. According to Angle, malocclusion is any deviation of the occlusion from the ideal. However, assessment
Malocclusion
an overall increase in gain and output, greater headroom, reduced occlusion effect, reduced feedback and improved directionality. Once inserted, users
Extended-wear_hearing_aid
Dentistry concept
angle formed between the sagittal plane when the incisors are in centric occlusion and the horizontal plane) must be reduced in order to decrease excessive
Dahl_effect
Untrained human perception of basic physical phenomena
confused by the event and attends longer than in probable event trial. An occlusion event tests the knowledge that an object exists even if it is not immediately
Naïve_physics
Image that exploits graphical similarities between two or more distinct images
the layers of texture. The illusion of occlusion is apparent in the effect of illusory contours, where occlusion is perceived despite being non-existent
Ambiguous_image
Occlusion according to The Glossary of Prosthodontic Terms Ninth Edition is defined as "the static relationship between the incising or masticating surfaces
Complete_denture_occlusion
Restriction in blood supply to tissues
may produce partial or total occlusion of a vessel from compression, shearing, or laceration. Acute arterial occlusion may develop as a result of arterial
Ischemia
3D image display method
dimensional to create a subtle 3D effect. The sense of depth from wiggle 3D images is due to parallax and to changes to the occlusion of background objects. Although
Wiggle_stereoscopy
Graphics software technology company
technology company founded 2007 in Helsinki, Finland. Umbra specializes in occlusion culling, visibility solution technology and provides middleware for video
Umbra_(3D_technology_company)
11th episode of the 4th season of Star Trek: Enterprise
"Observer Effect" is the eleventh episode of the fourth season of the American science fiction television series Star Trek: Enterprise and the eighty-eighth
Observer Effect (Star Trek: Enterprise)
Observer_Effect_(Star_Trek:_Enterprise)
Permanent birth control method for women
8%), or other unsatisfactory device location (0.6%)". Upon follow-up, occlusion was observed to have occurred in 96.5% of patients at 3 months with the
Essure
Texture mapping technique
account for occlusion. Subsequent enhancements have been made to the algorithm incorporating iterative approaches to allow for occlusion and accurate
Parallax_mapping
Anti-inflammatory medication
patients with retinal vein occlusion (RVO), such as central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO). The reason for this
Aspirin
Issue in artificial intelligence and categorical algebra
has been just executed that makes the condition true or false as an effect. Occlusion can be viewed as "permission to change": if a condition is occluded
Frame_problem
Drooping of the upper eyelid over the eye
patient is under the recommended age for surgery, the doctor will test if occlusion therapy can compensate for the patient's impeded vision. The reason for
Ptosis_(eyelid)
Operation in computer graphics
represent the emission of the object or pixel, and the alpha represents the occlusion. The over operator then becomes: Co=Ca+Cb(1−αa) αo=αa+αb(1−αa) The most
Alpha_compositing
Medication applied to body surfaces
protective, therapeutic, or prophylactic purposes and where a degree of occlusion is desired.[citation needed] Ointments are used topically on a variety
Topical_medication
Surgical procedure for male sterilization
access of the vas, and then plug or injected plug occlusion. The success of the aforementioned vas occlusion techniques is not clear and data are still[when
Vasectomy
Itchy skin rash usually affecting the genitals
irritation and inflammation. Several observations support the "urine occlusion hypothesis," including: Rare incidence in circumcised individuals: LSc
Lichen_sclerosus
Skin thinning due to prolonged exposure to topical steroids
of prolonged exposure to topical steroids. This is the most common side effect of overuse or misuse of topical steroids. Topical steroids are typically
Steroid-induced_skin_atrophy
avoid needing an exact solution to the rendering equation. Ambient occlusion (AO) Effect approximating, in an inexpensive way, one aspect of global illumination
Glossary_of_computer_graphics
Pharmaceutical drug
retinopathy, and macular edema due to branch retinal vein occlusion or central retinal vein occlusion. Ranibizumab was developed by Genentech and marketed
Ranibizumab
Reduction of blood flow to the heart
throughout their coronary arteries. A more severe form is chronic total occlusion (CTO) when a coronary artery is completely obstructed for more than 3
Coronary_artery_disease
How humans perceive color
distributed over a range of incident angles, in turn modified by local occlusion and mutual reflection, all of which may vary with time and position."
Color_constancy
pneumonitis is characterized by: Loss of epithelial cells Edema Inflammation Occlusions of airways, air sacs and blood vessels Fibrosis A single dose of 1–2 Gray
Effects of nuclear explosions on human health
Effects_of_nuclear_explosions_on_human_health
Configuration and interaction of the articulators when making a speech sound
during occlusion; if it is voiceless, a stop is completely silent. What one hears as a /p/ or /k/ is the effect that the onset of the occlusion has on
Manner_of_articulation
Medical condition
Other conditions causing rubeosis iridis include central retinal vein occlusion, ocular ischemic syndrome, and chronic retinal detachment. It is usually
Rubeosis_iridis
Boundary separating two masses of air of different densities
stalled in their motion. Cold fronts and cold occlusions move faster than warm fronts and warm occlusions because the dense air behind them can lift as
Weather_front
Purported geroprotective agent
(2011). "[Effects of introduction of short peptides before carotid artery occlusion on behaviour and caspase-3 activity in the brain of old rats]". Advances
Pinealon
Tubular device placed in a vein to administer medicines
precipitates. However, thrombosis is the most common cause of central line occlusion, occurring in up to 25% of catheters. CVCs are a risk factor for forming
Central_venous_catheter
Interruption of cardiac blood supply
as either occlusion myocardial infarction (OMI) or non-occlusion myocardial infarction (NOMI), depending on evidence of coronary occlusion on ECG. Preliminary
Myocardial_infarction
Type of head injury
(ORIF). The main goal of any surgical intervention is to re-establish occlusion, or the alignment of upper and lower teeth, to ensure the patient is able
Le_Fort_fracture_of_skull
Inability to focus on distant objects
evidence that the protective effect of outdoor activities on the development of myopia is due, at least in part, to the effect of long hours of exposure
Myopia
Scar treatment therapy
including the occlusion and hydration effect, increased body surface temperature, polarized electric charge, immunological effects, etc. The occlusion and hydration
Silicone_gel_sheeting
Medical condition
(inflammation of the intima or inner lining of an artery) that results in an occlusion of the lumen of the artery. Obliterating endarteritis can occur due to
Obliterating_endarteritis
Alternating occlusion training, also referred to as electronic rapid alternate occlusion, is an approach to amblyopia and to intermittent central suppression
Alternating occlusion training
Alternating_occlusion_training
Medical condition
produce a mass effect. Further, a thrombophlebitis may develop in the bridging veins that cross the subdural space, resulting in venous occlusion and infarction
Subdural_empyema
Process of transforming 2D film to 3D form
technique, defined as warping the pixels surrounding the occlusion regions to avoid explicit occlusion filling. In such cases, the edges of the displacement
2D_to_3D_conversion
Part of the human heart
to close it during open-heart surgery, using a left atrial appendage occlusion procedure. The sinoatrial node (SA node) is located in the posterior aspect
Atrium_(heart)
Area where light is blocked by an object
areas in form and cast shadows, respectively called core shadows and occlusion shadows, sometimes occur due to the effects of reflected light. A shadow
Shadow
Condition that affects the arteries that supply the brain
an idiopathic cerebrovascular disorder that results in narrowing and occlusion of intracranial blood vessels. The most common presentation is stroke
Cerebrovascular_disease
Disease characterized by constriction of brain arteries
considered as moyamoya being secondary to the primary condition. Mainly, occlusion of the distal internal carotid artery occurs. On angiography, a "puff
Moyamoya_disease
Group of rendering algorithms used in 3D computer graphics
an adequately realistic effect. Ambient lighting is known to "flatten" shadows in 3D scenes, making the overall visual effect more bland. Beyond ambient
Global_illumination
Group of eye diseases related to poor retinal and nerve perfusion
the eye, such as severe diabetic retinopathy and central retinal vein occlusion (neovascular glaucoma); ocular trauma (angle-recession glaucoma); plateau
Glaucoma
Dental condition
physiological movement of a tooth lacking an opposing partner in the dental occlusion. Because of the lack of opposing force and the natural eruptive potential
Overeruption
Eyes not aligning when looking at something
these), is present while the person views a target binocularly, with no occlusion of either eye. The person is unable to align the gaze of each eye to achieve
Strabismus
Computer graphics rendering technique
high-dynamic-range rendering, ambient occlusion (screen space ambient occlusion, screen space directional occlusion, ray-traced ambient occlusion), ray tracing, global
Per-pixel_lighting
Grinding or clenching of the teeth
appliance, holding the posterior teeth out of occlusion and leading to their over-eruption, deranging the occlusion (i.e. it may cause the teeth to move position)
Bruxism
Type of evoked potential
"Detection of spreading depolarizations in a middle cerebral artery occlusion model in swine". Acta Neurochirurgica. 162 (3): 581–592. doi:10.1007/s00701-019-04132-8
Cortical_spreading_depression
Medical condition
epinepherine, pars planitis, retinitis pigmentosa, Irvine-Gass syndrome, venous occlusion, E2-prostaglandin analogues, nicotinic acid/niacin).[citation needed]
Macular_edema
Computer graphics technique
gives surfaces a sense of depth and detail, permitting in particular self-occlusion, self-shadowing and silhouettes; on the other hand, it is the most costly
Displacement_mapping
Medical intervention
and stent) within the coronary artery to 'crush' the plaque causing the occlusion into the walls of the artery. Balloon angioplasty is still often performed
Percutaneous coronary intervention
Percutaneous_coronary_intervention
Visual field loss on the left or right side of the vertical midline
hemianopsia. Homonymous hemianopsia secondary to posterior cerebral artery occlusion – may result in syndromes of memory impairment, opposite visual field
Homonymous_hemianopsia
Small patch that is worn in front of an eye
for example, using binasal occlusion or partially frosted spectacles in place of any eye patch, using alternating occlusion goggles or using methods of
Eyepatch
Decreased ability to see color or color differences
drivers, police officers, firefighters, and members of the armed forces. The effect of color blindness on artistic ability is controversial, but a number of
Color_blindness
Method of displaying stereoscopic 3D imagery
suppression, liquid crystal devices have been used for purposes of enhanced occlusion therapy. In this scenario, the amblyopic patient wears electronically
Active_shutter_3D_system
Colourless non-flammable greenhouse gas
oxide at 75% by volume reduced ischemia-induced neuronal death induced by occlusion of the middle cerebral artery, and decreased NMDA-induced Ca2+ influx
Nitrous_oxide
American painter (1940–2021)
painting style and working methods in 1988, after being paralyzed by an occlusion of the anterior spinal artery. Chuck Close was born in Monroe, Washington
Chuck_Close
Surgical procedure
procedure should be avoided when: There is complete internal carotid artery occlusion The person has a previous complete hemispheric stroke on the ipsilateral
Carotid_endarterectomy
Swelling of the eyelid due to infection of an oil gland
improve outcomes, though the authors could not rule out placebo effect or observer effect because the reviewed studies lacked positive control, were not
Stye
Short term dental prosthetic
formation. Once the resin has been set, the restoration can be checked for occlusion and margins before being cemented in. 3. Composite crowns Preformed malleable
Temporary_crown
Inflammation of the eyelid
damage of varying severity and, in the worst cases, may have a negative effect on vision. This can be resolved with a proper eyeglass prescription. Long-term
Blepharitis
Term for two forms of anti-aliasing
the historical data for a pixel will become invalid due to changes in occlusion, such as the pixel having recently become visible after being blocked
Temporal_anti-aliasing
Genus of annelid worms
"Effect of oral administration of Pheretima aspergillum (earthworm) in rats with cerebral infarction induced by middle-cerebral artery occlusion". Afr
Pheretima
Irregular beating of the atria of the heart
minimaze procedures. There is growing evidence that left atrial appendage occlusion therapy may reduce the risk of stroke in people with non-valvular AF as
Atrial_fibrillation
Aberration of vision due to asymmetry in the eye's lens or cornea
spectacles which have a "minus" cylinder placed on this horizontal axis. The effect of this will be that when a vertical beam of light in the distance travels
Astigmatism
Condition making it difficult or impossible to see in relatively low light
ischemic syndrome / Central retinal vein occlusion Central retinal artery occlusion Branch retinal artery occlusion Retinopathy diabetic hypertensive Purtscher's
Nyctalopia
Anticholinergic medication used as antidote for nerve agent poisoning
ophthalmic examination. In refractive and accommodative amblyopia, when occlusion is not appropriate sometimes atropine is given to induce blur in the good
Atropine
Lacking teeth
their occlusion; posterior teeth, in a mutually protected occlusion, help to protect the anterior teeth and the vertical dimension of occlusion and, when
Toothlessness
3D rendering software used by Pixar
development of point-based rendering for indirect illumination and ambient occlusion." The fourth was in 2011 honoring David Laur. It has also won the Gordon
Pixar_RenderMan
Deformation of the eye's cornea into a conelike shape
perception of multiple "ghost" images, known as monocular polyopia. This effect is most clearly seen with a high contrast field, such as a point of light
Keratoconus
exist in the other stereo image. These image areas are called occlusions. If occlusions are not adequately accounted for during correspondence determination
Correspondence_problem
Process in medical pathology
occlusion (see below). Within ninety seconds of occlusion, the pressure gradient between the segment of the coronary vessel distal to the occlusion and
Collateralization
Cardiac chest pain at any time, not just periods of exertion
vessel walls. In comparison, stable angina is caused by the permanent occlusion of these vessels by atherosclerosis, which is the buildup of fatty plaque
Variant_angina
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