A single-domain antibody (sdAb), also known as a nanobody, is an antibody fragment consisting of a single monomeric variable antibody domain. Like a whole antibody, it is able to bind selectively to a specific antigen. With a molecular weight of only 12–15 kDa, single-domain antibodies are much smaller than common antibodies (150–160 kDa) which are composed of two heavy protein chains and two light chains, and even smaller than Fab fragments (~50 kDa, one light chain and half a heavy chain) and single-chain variable fragments (~25 kDa, two variable domains, one from a light and one from a heavy...

The Solovetsky Islands (Russian: Солове́цкие острова́), or Solovki (Соловки́), are an archipelago located in the Onega Bay of the White Sea, Russia. As an administrative division, the islands are incorporated as Solovetsky District of Arkhangelsk Oblast, Russia. Within the framework of municipal divisions, they are incorporated as Solovetskoye Rural Settlement within Primorsky Municipal District. The administrative center of both divisions is the settlement of Solovetsky, located on Bolshoy Solovetsky Island. Almost all of the population of the islands lives in Solovetsky. As of the 2010 Census...

The Solovetsky Monastery (Russian: Солове́цкий монасты́рь, IPA: [səlɐˈvʲɛtskʲɪj mənɐˈstɨrʲ]) is a fortified monastery located on the Solovetsky Islands in the White Sea in northern Russia. It was one of the largest Christian citadels in northern Russia before it was converted into a Soviet prison and labor camp in 1926 to 1939, and served as a prototype for the camps of the Gulag system. The monastery has experienced several major changes and military sieges. Its most important structures date from the 16th century, when Filip Kolychev was its hegumen (comparable to an abbot). == History == The...

In Japanese, counter words or counters (助数詞, josūshi) are measure words used with numbers to count things, actions, and events. In Japanese, as in Chinese and Korean, numerals cannot quantify nouns by themselves (except, in certain cases, for the numbers from one to ten; see below). For example, to express the idea "two dogs" in Japanese one could say 二匹の犬 ni-hiki no inu (literally "two small-animal-count POSSESSIVE dog"), or 犬二匹 inu ni-hiki (literally "dog two small-animal-count"), but just pasting 二 and 犬 together in either order is ungrammatical. Here 二 ni is the number "two", 匹 hiki is the...

In taxonomy (especially in zoological and botanical nomenclature), a nomen nudum ("naked name"; plural nomina nuda) is a designation which looks exactly like a scientific name of an organism, and may have originally been intended to be a scientific name, but fails to be one because it has not (or has not yet) been published with an adequate description (or a reference to such a description). This makes it a "bare" or "naked" name, one which cannot be accepted as it stands. A largely equivalent but much less frequently used term is nomen tantum ("name only"). == In zoology == According to the rules...