Several groups developed operating systems for the architecture, including Microsoft Windows, Linux, and UNIX variants such as HP-UX, Solaris,

Several libertarian socialists, notably Noam Chomsky, believe that anarchism shares much in common with certain variants of Marxism such as the council communism of Marxist Anton Pannekoek.

Several variants of Mozzarella cheese have been developed for use as pizza cheese.

Several variants of the oath have been used since 1789 ; the current form, which is also recited by Senators, Representatives and other government officers, has been used since 1884:

Several DIP variants for ICs exist, mostly distinguished by packaging material:

Several variants of the coherency matrix have been proposed: the Wiener coherency matrix and the spectral coherency matrix of Richard Barakat measure the coherence of a spectral decomposition of the signal, while the Wolf coherency matrix averages over all time / frequencies.

Several different variants of the " Cinderella " story, which has its origins in the Egyptian story of Rhodopis, appear in the One Thousand and One Nights, including " The Second Shaykh's Story ", " The Eldest Lady's Tale " and " Abdallah ibn Fadil and His Brothers ", all dealing with the theme of a younger sibling harassed by two jealous elders.

Several variants of the pressure cooker exist.

Several variants of the double pendulum may be considered ; the two limbs may be of equal or unequal lengths and masses, they may be simple pendulums or compound pendulums ( also called complex pendulums ) and the motion may be in three dimensions or restricted to the vertical plane.

Several other types of theologically motivated variants are found in the Samaritan Pentateuch.

Several states of India have banned the sale, manufacture, distribution and storage of gutka and all its variants.

Several different variants of the story appear in the medieval One Thousand and One Nights, also known as the Arabian Nights, including " The Second Shaykh's Story ", " The Eldest Lady's Tale " and " Abdallah ibn Fadil and His Brothers ", all dealing with the theme of a younger sibling harassed by two jealous elders.

Several states and provinces bearing the name of Pontus or variants thereof were established in the region in Hellenistic, Roman and Byzantine times.

Several variants are known ; Fauna is daughter, wife or sister of Faunus ( also named Faunus Fatuus, meaning Faunus " the foolish ", or seer ).

Several other variants were produced through the 1820s and were employed in military bands.

Several variants exist of his name: Ysaac, Ysaak, Henricus, Arrigo d ' Ugo, and Arrigo il Tedesco among them.

Several forms of Gauri Raga exist historically and this probably accounts for the large number of variants: Gauri Cheti, Gauri Bairagan, Gauri Dipaki, Gauri Purbi-Dipaki, Gauri Guareri, Gauri-Majh, Gauri Malava, Gauri Mala, Gauri Sorath, Gauri Dakhani.

Several routes in the past concurrently used the Orient Express name, or slight variants thereof.

Several variants of backtracking exists.

Several variants and forms are known per species.

Several limited-edition variants of Mars bars have been released in various countries.

Several variants of the game were released, with similar gameplay but different graphics and music.

Several variants of Zen's practice and experiential wisdom ( 禅宗 ) were separately brought to Japan.

Several variants were also studied.

Several Heinlein works have been published since his death, including the aforementioned For Us, The Living as well as 1989's Grumbles from the Grave, a collection of letters between Heinlein and his editors and agent ; 1992's Tramp Royale, a travelogue of a southern hemisphere tour the Heinleins took in the 1950s ; Take Back Your Government, a how-to book about participatory democracy written in 1946 ; and a tribute volume called Requiem: Collected Works and Tributes to the Grand Master, containing some additional short works previously unpublished in book form.

Several historians credit the Reform Act 1832 with launching modern democracy in Britain.

Several studies find that democracy, more trade causing greater economic interdependence, and membership in more intergovernmental organizations reduce the risk of war.

Several studies have also controlled for the possibility of reverse causality from peace to democracy.

Several leaders of the Indian independence movement, including Mahatma Gandhi, expressed strong opposition against Nazism and Fascism but termed Britain's " war to save democracy " as hypocrisy since it was denying democratic rights and individual liberties to Indians.

Several organizations, such as the American Association of Variable Star Observers and Center for Backyard Astrophysics, exist to help coordinate these contributions.

Several possible causes exist for these patterns of neurological dysfunction.

Several major cities exist either in the Andes or in the foothills, among which are Bogotá, Medellín and Cali, Colombia ; Quito, Ecuador ; Mérida, Venezuela ; La Paz, Bolivia ; Santiago, Chile, and Cusco, Peru.

Several offences of assault exist in Northern Ireland.

Several molecular mechanisms of antibacterial resistance exist.

Several ways of implementing this exist, and hot-wire devices can be further classified as CCA ( constant-current anemometer ), CVA ( constant-voltage anemometer ) and CTA ( constant-temperature anemometer ).

Several concepts that provide alternative definitions for the reaction mechanisms involved and their application in solving related problems exist.

Several allotropes of boron exist: amorphous boron is a brown powder and crystalline boron is black, extremely hard ( about 9. 5 on the Mohs scale ), and a poor conductor at room temperature.

Several substyles exist, including maibock or helles bock, a paler, more hopped version generally made for consumption at spring festivals ; doppelbock, a stronger and maltier version ; and eisbock, a much stronger version made by partially freezing the beer and removing the water ice that forms.

Several rating scales for the screening and evaluation of bipolar disorder exist, such as the Bipolar spectrum diagnostic scale.

Several methods exist to compute the value of without actually expanding a binomial power or counting k-combinations.

Several Hui restaurants serving Chinese Islamic cuisine exist in Los Angeles.

; Epiphenomenon / zombie reply: Several philosophers argue that consciousness, as Searle describes it, does not exist.

Several transcriptions exist.

Several different techniques exist to study cells are

Several hypotheses exist.

Several dialects of West African English exist, with a lot of regional variation and some influence from indigenous language.

Several incomplete sets of this form of croquet are known to exist, and one complete set is still used for demonstration games in the West of Scotland.

Several free and open source animation software applications exist as well.

Several versions exist, though they all have the same basic premise, that of a set of instructions given by the Great Goddess to her worshippers.

Several kinds of cytochrome exist and can be distinguished by spectroscopy, exact structure of the heme group, inhibitor sensitivity, and reduction potential.

Several laboratory scale techniques for distillation exist ( see also distillation types ).

Several products exist to support such databases.

Several normal forms exist with different properties.