A variable geometry turbomachine is basically a combination of different fixed geometry turbomachines, which uses movable valves to optimize the efficiency at various service requirements.
 Generally, due to different kinds of service requirements many different kinds of pump (compressor) or turbine are used.
 And for a particular type of operating requirements we require specific type of pump or turbine, which will provide optimum conditions of operation.
 Thus a variable geometry turbomachine adjusts to different service requirements.
Functions can be identified according to the properties they have.
 These properties describe the functions behaviour under certain conditions.
 A parabola is a specific type of function.
A star war was a decisive conflict between rival polities of the Maya civilization during the first millennium AD.
 The term comes from a specific type of glyph used in the Maya script, which depicts a star showering the earth with liquid droplets, or a star over a shell.
 It represents a verb but its phonemic value and specific meaning have not yet been deciphered.
 The name "star war" was coined by the epigrapher Linda Schele to refer to the glyph, and by extension to the type of conflict that it indicates.
A centrifugal governor is a specific type of governor with a feedback system that controls the speed of an engine by regulating the amount of fuel (or working fluid) admitted, so as to maintain a near-constant speed, irrespective of the load or fuel-supply conditions.
 It uses the principle of proportional control.
Neutrophil swarming is a specific type of neutrophil migration behaviour characterised by a high coordination between neutrophils, clustering of neutrophils to the inflammation site and signalling to other neutrophils further away.
 This specific type of migration rely on the production and secretion of LTB4 and on the use of integrins for neutrophil to stop at the cluster site.
Type I hypersensitivity (or immediate hypersensitivity) is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen.
 Type I is not to be confused with type II, type III, or type IV hypersensitivities, nor is it to be confused with Type I Diabetes or Type I of any other disease or reaction.
A phytobezoar is a type of bezoar, or trapped mass in the gastrointestinal system, that consists of components of indigestible plant material, such as fibres, skins and seeds.
 While phytobezoars may be discovered incidentally on barium x-ray or endoscopic testing of the stomach, individuals with phytobezoars may develop symptoms: nausea, vomiting, gastric outlet obstruction, perforation, abdominal pain, and bleeding have been reported.
 Conditions that lead to decreased motility in the stomach (gastroparesis) and surgeries on the stomach (such as vagotomy or gastric bypass) are associated with the development of phytobezoars.
 A specific type of phytobezoar, termed a diospyrobezoar, is associated with ingestion of unripe persimmons, which contain a soluble tannin called shibuol that polymerizes into a coagulative cellulose-protein compound in the acid environment of the stomach, to form the bezoar.
 In addition to their presence in human stomachs, phytobezoars have been documented in the stomachs of slaughtered plant-eating animals.
Girlfriends was a women's magazine that provided critical coverage of culture, entertainment and world events from a lesbian perspective.
 It was founded by Jacob Anderson-Minshall, Diane Anderson-Minshall and Heather Findlay.
 It also offered relationship, health and travel advice.
 Published monthly from San Francisco since 1993, it was distributed nationwide by Disticor.
 It had the same publisher as lesbian erotica magazine "On Our Backs", but distanced itself from its pornographic counterpart by refusing to carry sexual ads.
 "Girlfriends" magazine ceased publication in 2006.
Conditions (full title: Conditions: a feminist magazine of writing by women with a particular emphasis on writing by lesbians) was a lesbian feminist literary magazine that came out biannually from 1976-1980 and annually from 1980 until 1990, and it included poetry, prose, essays, book reviews, and interviews.
 It was founded in Brooklyn, New York, by Elly Bulkin, Jan Clausen, Irena Klepfisz and Rima Shore.
In solid-state physics, heavy fermion materials are a specific type of intermetallic compound, containing elements with 4f or 5f electrons in unfilled electron bands.
 Electrons are one type of fermion, and when they are found in such materials, they are sometimes referred to as heavy electrons.
 Heavy fermion materials have a low-temperature specific heat whose linear term is up to 1000 times larger than the value expected from the free-electron theory.
 The properties of the heavy fermion compounds often derive from the partly filled f-orbitals of rare-earth or actinide ions, which behave like localized magnetic moments.
 The name "heavy fermion" comes from the fact that the fermion behaves as if it has an effective mass greater than its rest mass.
 In the case of electrons, below a characteristic temperature (typically 10 K), the conduction electrons in these metallic compounds behave as if they had an effective mass up to 1000 times the free-electron mass.
 This large effective mass is also reflected in a large contribution to the resistivity from electron-electron scattering via the Kadowaki Woods ratio.
 Heavy fermion behavior has been found in a broad variety of states including metallic, superconducting, insulating and magnetic states.
 Characteristic examples are CeCu, CeAl, CeCuSi, YbAl, UBe and UPt.

Question: Girlfriends and Conditions, are publications of which specific type?
Answer: women's magazine