Renal glycosuria Created 2026-10-31 Updated 2026-11-05
Glycosuria arising from renal glucose-handling changes without the elevated blood plasma glucose ordinarily responsible for overflow. It can be isolated or part of a broader tubular disorder.[ref]
Glomerular filtration barrier Created 2026-10-31 Updated 2026-11-05
The glomerular filtration barrier comprises the specialized capillary endothelium, basement membrane and podocyte-associated filtration slits of the glomerulus. Their combined properties determine what enters the initial filtrate. Size selectivity is therefore a feature of a layered interface rather than one simple open sieve.
Glomerular endotheliosis Created 2026-10-31 Updated 2026-11-05
Swelling of the endothelium of glomeruli with narrowing of their capillary lumina, notably associated with pre-eclampsia.[ref]
Post-streptococcal glomerulonephritis Created 2026-10-31 Updated 2026-11-05
An immune-mediated renal complication following group A streptococcal infection; it is distinct from direct bacterial invasion of the kidney.
Subglacial drainage 2026-10-31
Subglacial drainage transports water beneath a glacier. The water pressure affects basal sliding through the effective pressure in subglacial drainage. Röthlisberger channel drainage concentrates discharge in melt-enlarged conduits; a linked cavity drainage system distributes it through connected spaces maintained by sliding and creep.
Glen's flow law 2026-10-31
A constitutive law for ice creep relates deviatoric stress and strain rate through an effective stress and a temperature-dependent rate factor . The commonly used exponent is near three. Homogeneity of degree explains the combination in pressure-dependent basal sliding laws when geometry and rate-factor scales are fixed.
Paraxial optics Created 2026-10-31 Updated 2026-11-05
Paraxial optics approximates light rays close to an optical axis and making small angles to it. Replacing and by makes propagation and refraction linear to first order, enabling ray transfer matrix analysis and the thin-lens equation.
For radians, ; at larger angles the error grows. This approximation is useful for first estimates of image positions and magnification. It deliberately omits higher-order optical aberrations, so agreement of a paraxial focus with a detector position does not guarantee a sharp image over a large aperture or field.
Ciliary ganglion 2026-10-31
A small ganglion between the optic nerve and lateral rectus muscle. Preganglionic fibres of the parasympathetic nervous system relay here; sensory and already postganglionic fibres of the sympathetic nervous system traverse it without another relay.[ref]
Submandibular ganglion Created 2026-10-31 Updated 2026-11-05
The submandibular ganglion is a parasympathetic relay associated with the lingual nerve. Preganglionic fibers arrive through the chorda tympani; output contributes to control of the submandibular gland and sublingual gland. Sharing a route does not imply that all lingual-nerve fibers synapse there.
Otic ganglion Created 2026-10-31 Updated 2026-11-05
The otic ganglion is a parasympathetic relay receiving fibers associated with the glossopharyngeal nerve through the lesser petrosal nerve. Postganglionic fibers reach the parotid gland using the auriculotemporal nerve.[ref]
Algorithmic game theory Created 2026-10-31 Updated 2026-11-05
Algorithmic game theory studies the interaction of algorithms with strategic behavior. It asks both how hard equilibria are to compute and how mechanisms should be designed when participants choose actions to improve their own utility.
For example, a shortest-path algorithm optimizes travel time for one specified traveler, while a routing game asks what happens when many travelers each choose a route. A Nash equilibrium can have a larger total delay than a centrally chosen allocation. Quantifying that loss by a price of anarchy links incentives with computational optimization. The input representation, equilibrium concept and allowed running time must all be specified.
Acute cholecystitis Created 2026-10-31 Updated 2026-11-05
Acute inflammation of the gallbladder, often associated with obstruction of its outlet by a gallstone. It differs anatomically from acute cholangitis, which involves the bile ducts.
Malassezia 2026-10-31
A genus of fungi including skin-associated yeasts.
Hypha Created 2026-10-31 Updated 2026-11-05
A hypha is a filament of a fungus, usually growing by extension near its tip. Branching filaments can explore a substrate and absorb materials over a distributed surface. A filament may contain internal partitions without being divided into wholly independent organisms.
Arthroconidium Created 2026-10-31 Updated 2026-11-05
An arthroconidium is an asexual fungal propagule formed by fragmentation of a hypha. Formation by splitting an existing filament distinguishes it from propagules produced by budding or at the end of a specialized stalk.
Trichophyton schoenleinii Created 2026-10-31 Updated 2026-11-05
Trichophyton schoenleinii is a fungus associated with infection of keratinized host structures, classically the scalp disease favus. It illustrates how fungal identification and the affected anatomical site jointly inform interpretation of an infection.
Microsporum 2026-10-31
A genus of dermatophytes; it should not be inferred from the nineteenth-century name Microsporon furfur used for pityriasis versicolor.
Dermatophyte Created 2026-10-31 Updated 2026-11-05
A fungus adapted to infect keratinised tissues. Malassezia associated with pityriasis versicolor is not thereby a dermatophyte.
Candida Created 2026-10-31 Updated 2026-11-05
Candida is a name applied to a group of yeasts including Candida albicans. Its medically important members can occur on host surfaces as well as cause candidiasis. Historical genus membership does not by itself establish identical physiology or pathogenicity among all species.
Ringworm Created 2026-10-31 Updated 2026-11-05
A dermatophyte fungal infection affecting keratin-containing tissue; the name does not imply a worm.

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