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Milan Randić
Milan Randić (born 1 October 1930) is a Croatian American scientist who is one of the leading experts in the field of computational chemistry. Birth and education Randić was born in the city of Belgrade, where his parents, originally from Kostrena (Croatian Primorje – Region in the northern Adriatic), lived at the time. Kostrena is well known by its maritime tradition, shipowners and seamen. Randic's ancestors were sailing ship owners as well as ship captains. His parents moved to Zagreb in 1941, where he continued his education. After finishing Gymnasium in Zagreb, he studied Theoretical Physics at the University of Zagreb during 1949–1953 and studied for Ph. D degree at the University of Cambridge, England (1954–1958). Academic career From 1960 to 1970 he was at the Ruđer Bošković Institute in Zagreb, Croatia, where he founded the Theoretical Chemistry Group. During 1971–1980 he was visiting various universities in USA including Johns Hopkins, MIT, Harvard, Tufts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belgrade
Belgrade ( , ;, ; Names of European cities in different languages: B, names in other languages) is the Capital city, capital and List of cities in Serbia, largest city in Serbia. It is located at the confluence of the Sava and Danube rivers and the crossroads of the Pannonian Basin, Pannonian Plain and the Balkan Peninsula. Nearly 1,166,763 million people live within the administrative limits of the City of Belgrade. It is the third largest of all List of cities and towns on Danube river, cities on the Danube river. Belgrade is one of the List of oldest continuously inhabited cities, oldest continuously inhabited cities in Europe and the world. One of the most important prehistoric cultures of Europe, the Vinča culture, evolved within the Belgrade area in the 6th millennium BC. In antiquity, Thracians, Thraco-Dacians inhabited the region and, after 279 BC, Celts settled the city, naming it ''Singidunum, Singidūn''. It was Roman Serbia, conquered by the Romans under the reign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Descriptors
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and ''molecule'' is often used when referring to polyatomic ions. A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e.g. two atoms in the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of more than one element, e.g. water (two hydrogen atoms and one oxygen atom; H2O). In the kinetic theory of gases, the term ''molecule'' is often used for any gaseous particle regardless of its composition. This relaxes the requirement that a molecule contains two or more atoms, since the noble gases are individual atoms. Atoms and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically not considere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faculty Of Science, University Of Zagreb Alumni functions
{{disam ...
Faculty may refer to: * Faculty (academic staff), the academic staff of a university (North American usage) * Faculty (division), a division within a university (usage outside of the United States) * Faculty (instrument), an instrument or warrant in canon law, especially a judicial or quasi-judicial warrant from an ecclesiastical court or tribunal * Faculty (company), a British artificial intelligence company * Aspects of intelligence ("cognitive faculties") * Senses of sight, hearing, touch, etc. ("perceptive faculties") * ''The Faculty'', a 1998 horror/sci-fi movie by Robert Rodriguez * ''The Faculty'' (TV series), a 1996 American sitcom * The rights of a priest to celebrate or perform various liturgical Liturgy is the customary public ritual of worship performed by a religious group. ''Liturgy'' can also be used to refer specifically to public worship by Christians. As a religious phenomenon, liturgy represents a communal response to and partic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croatian Chemists
Croatian may refer to: *Croatia *Croatian language *Croatian people *Croatians (demonym) See also * * * Croatan (other) * Croatia (other) * Croatoan (other) * Hrvatski (other) * Hrvatsko (other) * Serbo-Croatian (other) Serbo-Croatian or Croato-Serbian, rarely Serbo-Croat or Croato-Serb, refers to a South Slavic language that is the primary language of Serbia, Croatia, Bosnia and Herzegovina, and Montenegro. Serbo-Croatian, Serbo-Croat, Croato-Serbian, Croato-Serb ... {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930 Births
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 '' Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resistance Distance
In graph theory, the resistance distance between two vertices of a simple, connected graph, , is equal to the resistance between two equivalent points on an electrical network, constructed so as to correspond to , with each edge being replaced by a resistance of one ohm. It is a metric on graphs. Definition On a graph , the resistance distance between two vertices and is : \Omega_:=\Gamma_+\Gamma_-\Gamma_-\Gamma_, :where \Gamma = \left(L + \frac\Phi\right)^+, with denoting the Moore–Penrose inverse, the Laplacian matrix of , is the number of vertices in , and is the matrix containing all 1s. Properties of resistance distance If then . For an undirected graph :\Omega_=\Omega_=\Gamma_+\Gamma_-2\Gamma_ General sum rule For any -vertex simple connected graph and arbitrary matrix : :\sum_(LML)_\Omega_ = -2\operatorname(ML) From this generalized sum rule a number of relationships can be derived depending on the choice of . Two of note are; :\begin \sum_\Omega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyper-Wiener Index
In chemical graph theory, the hyper-Wiener index or hyper-Wiener number is a topological index of a molecule, used in biochemistry. The hyper-Wiener index is a generalization introduced by Milan Randić of the concept of the Wiener index, introduced by Harry Wiener. The hyper-Wiener index of a connected graph ''G'' is defined by : WW(G)=\frac 1 2 \sum_(d(u,v)+d^2(u,v)), where ''d''(''u'',''v'') is the distance between vertex ''u'' and ''v''. Hyper-Wiener index as topological index assigned to ''G'' = (''V'',''E'') is based on the distance function which is invariant under the action of the automorphism group of ''G''. Hyper-Wiener index can be used for the representation of computer networks and enhancing lattice hardware security Hardware security as a discipline originated out of cryptographic engineering and involves hardware design, access control, secure multi-party computation, secure key storage, ensuring code authenticity, measures to ensure that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Graph Theory
Chemical graph theory is the topology branch of mathematical chemistry which applies graph theory to mathematical modelling of chemical phenomena. The pioneers of chemical graph theory are Alexandru Balaban, Ante Graovac, Iván Gutman, Haruo Hosoya, Milan Randić and Nenad Trinajstić (also Harry Wiener and others). In 1988, it was reported that several hundred researchers worked in this area, producing about 500 articles annually. A number of monographs have been written in the area, including the two-volume comprehensive text by Trinajstić, ''Chemical Graph Theory'', that summarized the field up to mid-1980s. The adherents of the theory maintain that the properties of a chemical graph (i.e., a graph-theoretical representation of a molecule) give valuable insights into the chemical phenomena. Others contend that graphs play only a fringe role in chemical research.D.H. Rouvray, "Combinatorics in Chemistry", pp. 1955-1982, in: Ronald Graham, Martin Grötschel, László Lovász (E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Writing System
A writing system is a method of visually representing verbal communication, based on a script and a set of rules regulating its use. While both writing and speech are useful in conveying messages, writing differs in also being a reliable form of information storage and transfer. Writing systems require shared understanding between writers and readers of the meaning behind the sets of characters that make up a script. Writing is usually recorded onto a durable medium, such as paper or electronic storage, although non-durable methods may also be used, such as writing on a computer display, on a blackboard, in sand, or by skywriting. Reading a text can be accomplished purely in the mind as an internal process, or expressed orally. Writing systems can be placed into broad categories such as alphabets, syllabaries, or logographies, although any particular system may have attributes of more than one category. In the alphabetic category, a standard set of letters represent speech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ideographic
An ideogram or ideograph (from Greek "idea" and "to write") is a graphic symbol that represents an idea or concept, independent of any particular language, and specific words or phrases. Some ideograms are comprehensible only by familiarity with prior convention; others convey their meaning through pictorial resemblance to a physical object, and thus may also be referred to as ''pictograms''. The numerals and mathematical symbols are ideograms – 1 'one', 2 'two', + 'plus', = 'equals', and so on (compare the section "Mathematics" below). In English, the ampersand & is used for 'and' and (as in many languages) for Latin ' (as in &c for '), % for 'percent' ('per cent'), # for 'number' (or 'pound', among other meanings), § for 'section', $ for 'dollar', € for 'euro', £ for 'pound', ° for 'degree', @ for 'at', and so on. The reason they are ideograms rather than logograms is that they do not denote fixed morphemes: they can be read in many different languages, not just E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croatian Chemical Society
Croatian may refer to: *Croatia *Croatian language *Croatian people *Croatians (demonym) See also * * * Croatan (other) * Croatia (other) * Croatoan (other) * Hrvatski (other) * Hrvatsko (other) * Serbo-Croatian (other) Serbo-Croatian or Croato-Serbian, rarely Serbo-Croat or Croato-Serb, refers to a South Slavic language that is the primary language of Serbia, Croatia, Bosnia and Herzegovina, and Montenegro. Serbo-Croatian, Serbo-Croat, Croato-Serbian, Croato-Serb ... {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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