Given the question: Information:  - The Gulf of Finland  is the easternmost arm of the Baltic Sea. It extends between Finland (to the north) and Estonia (to the south) all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn. The eastern parts of the Gulf of Finland belong to Russia, and some of Russia's most important oil harbours are located farthest in, near Saint Petersburg (including Primorsk). As the seaway to Saint Petersburg, the Gulf of Finland has been and continues to be of considerable strategic importance to Russia. Some of the environmental problems affecting the Baltic Sea are at their most pronounced in the shallow gulf.  - An academician is a full member of an artistic, literary, or scientific academy. In many countries, it is an honorific title used to denote a full member of an academy that has a strong influence on national scientific life. In systems such as the Academy of Sciences of the USSR, the title grants privileges and administrative responsibilities for funding allocation and research priorities.  - Dmitri Vladimirovich Skobeltsyn ( Russian :    ) ( November 24 , 1892 in Saint Petersburg -- November 16 , 1990 ) was a Soviet physicist , academician of the Soviet Academy of Sciences ( 1946 ) , Hero of Socialist Labor ( 1969 ) . Dmitri Skobeltsyn was awarded the Stalin Prize ( 1950 ) , six Orders of Lenin , two other orders , and numerous medals . In 1923 , while using a cloud chamber to try to detect gamma radiation in cosmic rays , Skobeltsyn detected particles that acted like electrons but curved in the opposite direction in an applied magnetic field . He was puzzled by these results , and they remained unexplained until the discovery of the positron in 1931 .  - The Neva is a river in northwestern Russia flowing from Lake Ladoga through the western part of Leningrad Oblast (historical region of Ingria) to the Neva Bay of the Gulf of Finland. Despite its modest length of , it is the fourth largest river in Europe in terms of average discharge (after the Volga, the Danube and the Rhine).  - Peter the Great, Peter I or Peter Alexeyevich (  ) ruled the Tsardom of Russia and later the Russian Empire from 7 May (O.S. 27 April) 1682 until his death, jointly ruling before 1696 with his elder half-brother, Ivan V. Through a number of successful wars he expanded the Tsardom into a much larger empire that became a major European power. He led a cultural revolution that replaced some of the traditionalist and medieval social and political systems with ones that were modern, scientific, westernized, and based on The Enlightenment. Peter's reforms made a lasting impact on Russia and many institutions of Russian government trace their origins to his reign.  - A saint, also historically known as a hallow, is a term used for a person who is recognized as having an exceptional degree of holiness or likeness to God. Depending on the context and denomination, the term also retains its original Christian meaning, as any believer who is "in Christ" and in whom Christ dwells, whether in Heaven or on Earth. In Anglican, Roman Catholic, Eastern Orthodox, Lutheran, and Oriental Orthodox doctrine, all of their faithful deceased in Heaven are considered to be saints, but some are considered worthy of greater honor or emulation; official ecclesiastical recognition, and consequently veneration, is given to some saints through the process of canonization in the Catholic Church or glorification in the Eastern Orthodox Church.  - Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara.  - Saint Petersburg is Russia's second-largest city after Moscow, with five million inhabitants in 2012, and an important Russian port on the Baltic Sea. It is politically incorporated as a federal subject (a federal city). Situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea, it was founded by Tsar Peter the Great on May . In 1914, the name was changed from Saint Petersburg to Petrograd, in 1924 to Leningrad, and in 1991 back to Saint Petersburg. Between 17131728 and 17321918, Saint Petersburg was the imperial capital of Russia. In 1918, the central government bodies moved to Moscow.    Given the information, choose the subject and object entities that have the relation of 'member of'.
The answer is:
dmitri skobeltsyn , academy of sciences of the ussr