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La metátesis de enlace sigma es una reacción química en la que un enlace sigma metal-ligando sufre metátesis (intercambio de partes) con el enlace sigma en algún reactivo. La reacción se ilustra mediante el intercambio de complejo de metilo de lutecio (III) con un hidrocarburo (R-H):[1] ( C 5 M e 5 ) 2 L u − C H 3 + R − H → ( C 5 M e 5 ) 2 L u − R + C H 4 {\displaystyle \mathrm {(C_{5}Me_{5})_{2}Lu-CH_{3}\ +\ R...
Imam SayutiInformasi pribadiLahir0 Oktober 1965 (umur 58)IndonesiaAlma materAkademi Kepolisian (1988)Karier militerPihak IndonesiaDinas/cabang Kepolisian Negara Republik IndonesiaMasa dinas1988—2023Pangkat Brigadir Jenderal PolisiNRP65100561SatuanReserseSunting kotak info • L • B Brigjen. Pol. (Purn.) Imam Sayuti, S.H., M.H., M.B.L. (lahir Oktober 1965) adalah seorang purnawirawan Polri yang jabatan terakhirnya adalah Karobankum Divkum Polri.[1] Imam, lu...
Енде́мік (від грец. ἔνδημος — місцевий) — термін, яким у біології та біогеографії позначають таксон, представники якого мають порівняно обмежений ареал. Отже, термін «ендемічний» щодо таксона позначає поняття, за значенням протилежне «космополітичному» та «аклім...
Pour les articles homonymes, voir Ringo. Le ringo est un sport collectif opposant deux équipes, qui consiste à lancer un anneau en caoutchouc afin qu'il tombe dans le demi-terrain adverse. Histoire Le jeu a été inventé en 1959 par un escrimeur et journaliste polonais Włodzimierz Strzyżewski. Le ringo est présenté au large public lors des Jeux olympiques d'été de 1968. Le premier championnat de Pologne a été disputé en 1973[1]. La Fédération polonaise de ringo n'a été fondée...
الرحمة يا ناس الصنف دراما الموضوع يتخرج 4 شبان في كلية التجارة ويبدأون حياتهم العملية، يربط الحب بين ليلى وابن خالتها أحمد ولكنها تغضب عندما يطلب منها تأجيل زواجهما إلى ما بعد عودته من الخارج لنيل الدكتوراه ويسافر دون أن يخطبها بشكل رسمي، تتعرف ليلى على حمدي وتسعى للزواج م...
Biografi ini memerlukan lebih banyak catatan kaki untuk pemastian. Bantulah untuk menambahkan referensi atau sumber tepercaya. Materi kontroversial atau trivial yang sumbernya tidak memadai atau tidak bisa dipercaya harus segera dihapus, khususnya jika berpotensi memfitnah.Cari sumber: Ning Cai – berita · surat kabar · buku · cendekiawan · JSTOR (November 2021) (Pelajari cara dan kapan saatnya untuk menghapus pesan templat ini) Dalam artikel ini, nama ...
Centennial LightBola Lampu Seratus Tahun LivermoreTipeFilamen karbonPrinsip kerjaPijaranlbs Bola Lampu Seratus Tahun atau Centennial Light adalah bola lampu yang berumur paling lama di dunia, pertama dipasang di rumah kereta selang pemadam kebakaran tahun 1901. Lampu ini sekarang berada di 4550 East Avenue, Livermore, California, dan dirawat oleh Pemadam Kebakaran Livermore-Pleasanton.[1] Bola lampu ini telah masuk dalam Buku Rekor Dunia Guinness tercatat sebagai bola lampu yang palin...
Charles ICharles I, Duke of MecklenburgDuke of Mecklenburg-GüstrowReign14 March 1603 - 22 July 1610PredecessorUlrich IIISuccessorJohn Albert IIBorn(1540-12-28)28 December 1540NeustadtDied22 July 1610(1610-07-22) (aged 69)GüstrowHouseMecklenburgFatherAlbert VII, Duke of MecklenburgMotherAnna of Brandenburg Charles I (28 December 1540 in Neustadt – 22 July 1610 in Güstrow), was the reigning Duke of Mecklenburg in the Mecklenburg-Güstrow part of the country. He was the youngest son of...
International Air Transport AssociationFormationApril 1945HeadquartersMontreal, Quebec, CanadaMembership 240 airlinesKey peopleTony Tyler, Director General and CEOWebsitehttp://www.iata.org The IATA Operational Safety Audit (IOSA) programme is an internationally recognised and accepted evaluation system designed to assess the operational management and control systems of an airline. IOSA uses internationally recognised quality audit principles and is designed to conduct audits in a standardis...
Canadian filmThe U MovieDirected byAlexander ReidThomas DouglasRunning time85 minutesCountryCanadaLanguageEnglish The U Movie is a 2010 Canadian documentary film that describes the backpacking adventures of two men as they travel to the South Pacific in late September 2004. The film won the Sir Edmund Hillary Award at the 2011 Telluride Mountainfilm festival and the Rising Star Award in Filmmaking at the 2011 Canada International Film Festival. About the film The two main people in the move a...
Walking track in New Zealand Big Rimu WalkView towards canopyLength1.1 km (0.68 mi)LocationKahurangi National Park, New ZealandTrailheadsUmere RoadUseNature walkHighest point80 m (260 ft)DifficultyEasySeasonYear roundSightslarge rimu tree, native bushMaintained byDepartment of Conservation The Big Rimu Walk is a nature trail near Karamea, located in Kahurangi National Park on the West Coast of the South Island of New Zealand. A short walk of 1.1 kilometres (0.68 mi)...
Uni Republik Sosialis Soviet Keanggotaan Perserikatan Bangsa-BangsaKeanggotaanBekas anggota penuhTanggal1945 (1945) – 1991 (1991)Kursi DK PBBPermanenDuta Besar Andrei Gromyko 1946–1948 Yakov Malik 1948–1952 Valerian Zorin 1952–1953 Andrey Vyshinsky 1953–1954 Arkady Sobolev 1955–1960 Valerian Zorin 1960–1963 Nikolai Fedorenko 1963–1968 Yakov Malik 1968–1976 Oleg Troyanovsky 1976–1986 Yuri Dubinin 1986 Alexander Belonogov 1986–1990 Yuli Vorontsov 1990–1991 ...
Miss BahiaMiss Universe BahiaFormation1954TypeBeauty pageantHeadquartersBahia, BrazilMembership Miss BrazilOfficial language PortugueseState DirectorJuliana Alves Miss Bahia is a Brazilian Beauty pageant which selects the representative for the State of Bahia at the Miss Brazil contest. The pageant was created in 1954 and has been held every year since with the exception of 1990, 1993, and 2020. The pageant is held annually with representation of several municipalities. Since 2022, the State ...
American diplomat Alexander MooreUnited States Ambassador to PeruIn officeJune 11, 1928 – July 10, 1929PresidentCalvin CoolidgeHerbert HooverPreceded byMiles PoindexterSucceeded byFred Morris DearingUnited States Ambassador to SpainIn officeMay 16, 1923 – December 20, 1925PresidentWarren G. HardingCalvin CoolidgePreceded byCyrus WoodsSucceeded byOgden H. Hammond Personal detailsBornAlexander Pollock Moore(1867-11-10)November 10, 1867Pittsburgh, Pennsylvania, U.S.DiedFebr...
English explorer of the Antarctic This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (November 2019) (Learn how and when to remove this template message) Francis Howard BickertonBorn(1889-01-15)15 January 1889Iffley, Oxfordshire, EnglandDied21 August 1954(1954-08-21) (aged 65)Borth, Cardiganshire, WalesOccupation(s)Explorer and aviator Francis Howard Bickert...
Suburb of Melbourne, Victoria, AustraliaTaylors HillMelbourne, VictoriaCollins Street, Taylors HillTaylors HillLocation in metropolitan MelbourneCoordinates37°42′54″S 144°45′04″E / 37.715°S 144.751°E / -37.715; 144.751Population19,539 (2021 census)[1] • Density4,340/km2 (11,250/sq mi)Postcode(s)3037Area4.5 km2 (1.7 sq mi)Location22 km (14 mi) from MelbourneLGA(s)City of MeltonState electorate(s)Sydenham...
Canadian politician For the Australian physician and military officer, see David Gifford Croll. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: David Croll – news · newspapers · books · scholar · JSTOR (December 2012) (Learn how and when to remove this template message) The Hon.David CrollSenatorIn office195...
German toilet service of 1743-45, Metropolitan Museum of Art. The set is mostly in silver-gilt, but includes two Japanese export porcelain Imari ware teacups and saucers. For a lady's dressing-table, including items for snacks and hot drinks. Household silver or silverware (the silver, the plate, or silver service) includes tableware, cutlery, and other household items made of sterling silver, silver gilt, Britannia silver, or Sheffield plate silver. Silver is sometimes bought in sets or comb...
Barco con velas cuadras Bajorrelieve de un carguero fenicio. En náutica, la vela cuadra (vela redonda) es el tipo de vela utilizado antiguamente por los barcos de vela.[1] Reciben el nombre de cuadras o cuadradas porque tienen forma rectangular o trapezoidal y porque trabajan en ángulo recto respecto al rumbo de la nave, ofreciendo al viento siempre la misma cara.[1] (fr. Voile carrée). Descripción Van colgadas de un palo horizontal o verga y sus bordes se tensan mediante es...
Second novel about Harry Bosch by Michael Connelly This article is about the 1993 crime novel. For other uses, see black ice (disambiguation). The Black Ice Hardcover editionAuthorMichael ConnellyCountryUnited StatesLanguageEnglishSeriesHarry BoschGenreCrime novelPublisherLittle, Brown and CompanyPublication dateJune 1, 1993Media typePrint (Hardcover, Paperback)Pages336 pp.ISBN0-316-15382-6Preceded byThe Black Echo Followed byThe Concrete Blonde The Black Ice is the ...