Ortiqov Bolta (tavallud 5. 5. 1924, Samarqand), navisandai sovetii tojik. Az oilai muzaduz. Soli 1952 fak­ultai zabon va adabiyoti Instituti pedagogii Samarqandro ba itmom rasond. Muddate muallimi maktabhoi miyonai rayoni Orjonikidzeobodi Respublikai Sovetii Sotsialistii Tojikiston va pas mudiri shubai maktabhoi jurnali «Pioner» (holo «Mashal») va mukhbiri makhsusi gazetai «Maorif va …

Ortopediya (az yunoni orthos — rost va pefdeia — tarbiya), yak sohai tib ast, ki shinokhtan, peshgiriyu muolija namudani deformatsiya (tagyiri qismhoi badan nisbat ba mavqei joygirshavi) va shikasti apparati takyagohiyu harakati odamro meomuzad. Baromadan va shikastani ustuhon, kaj shudani panjaho sutunmuhra va usulhoi muolijai onhoro bori avval hakim Buqrot …

Orkestri simfonii filarmoniyai davlatii Tojikiston, kollektivi ejodii navozandagonest, ki soli 1965 dar nazdi Fi­larmoniyai davlatii Tojikiston tasis yoftaast (rohbarash Yu. Evse­ev bud). Orkestr dar tashviqu targibi asarhoi bastakoroni klassikii jahoni, rus, soveti va tojik roli ka­lon mebozad. Dar barnomahoi Orkestr asarhoi L. Betkhoven (simfoniyai 3 va 5), P. I. Chaykovskiy …

Orsk, shahrest dar viloyati Orenburgi Respublikai Sovetii Federativii Sotsialistii Rossiya. Dar Urali Janubi va nazdi rezishgohi daryoi Or voqe ast. Uzeli rohi ohan. Aholiash 247 hazor nafar (1979). Sohahoi asosii sanoat metallurgiyai ranga, moshinsozi, neftu khimiya va khurokvorist. Korkhonahoi kalon- tarinash; kombinati «Yujuralnikel», zavodhoi korkardi metallhoi ranga va neft, spirti …

Orfey, hofizi afsonavii Fra­kiya, pisari oliha Kalliopa. Bino ba rivoyathoi ahdi qadim surudhoi hayratangezi u odamon va hatto khudoyonro maftun karda, quvvahoi vah­shii tabiatro rom kardaand. Dar afsonahoi yunoni Orfey ejodkunandai sheru musiqi vasf shudaast. Orfey dar adabiyoti badei, sanati tasviri va musiqii khalqhoi gunogun naqshi ravshan guzoshtaast.

Orkney (jazirahoi Orkney—Ork­ney Islands), galajaziraest dar hay­ati jazirahoi Britaniya, dar nazdikii kanori shimoli Shotlandiya. Tobei Britaniyai Kabir. Taqriban 70 jaziraro dar bar megirad. Masohati umumii Orkney qa­rib 1000 kilometr2. Aholiash 17,1 hazor nafar (1971). Jazirai kalontarin — Meyn­lend. Sathi jaziraho — serteppa. Joi az hama balandtarashon 477 metr (jazirai Khoy). …

Ortikon (az yunoni orthos — rost, muntazam va eikon — tasvir), karnai televizionii irsol bo katodi khotamkorist, ki dar on tasviri shuoi ba tasviri elektri, yane ba istiloh -relefi potensiali tabdil meyobad. Chunin usuli hosil kardani tasvirro injeneroni amerikoi A. Roz va H. Yams soli 1939 peshnihod kardaand. Hangomi ba …

Orfikho (Orphikoi), namoyandagoni jarayoni diniyu irfonii Yunoni Qadim, ki az asri 6—4 to milod injonib malumand. Orfikho khudro payravoni O r f e y va shogirdi u Musey medonistand, ki guyo baroi mutaqidon rivoyati makhfi guzoshta budand. Mazmuni asosii talimoti Orfikho asotirest dar borai paydoishi inson. Faneti dujinsaro, ki az …

Orlov Aleksandr Sergeevich (4. 2. 1871, Moskva — 6. 3. 1947, Lenin­grad), adabiyotshinosi soveti, akademiki Akademiyai Fanhoi SSSR (1931). Fakulteti tarikhu filologiyai Universiteti  Moskvaro khatm kardaast (1895). Dar hamon universitet va maktabhoi olii digar muallim bud. Az soli 1933 muassis va rohbari Shubai adabiyoti qadimi rusi Khonai Pushkin. Muhimtarin talifi …

Ortrit (az yunoni orthos — rost), allanit, mineralest ae guruhi epidot. Tarkibi khimiyaviash taqriban (Sa, Se, Mn)2 (FeH, Fe3+, Mg) Al*[Si04] [Si207] O (ON). To 6% Se20z va aksar vaqt omekhtahoi Th, U, goho Y2Os (to 8%) dorad. Sistemai kristallbandiash monoklini, kristallhoyash darozi prizma va nayzamonand. Beshtar dar shakli donachaho …