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Tom McLeish
Thomas Charles Buckland McLeish (1 May 1962 – 27 February 2023) was a British theoretical physicist. His work is renowned for increasing understanding of the properties of soft matter. This is a matter that can be easily changed by stress – including liquids, foams and biological materials. He was a professor in the Durham University Department of Physics and director of the Durham Centre for Soft Matter, a multidisciplinary team that works across physics, chemistry, mathematics and engineering. He also was the first Chair of Natural Philosophy at the University of York. Early life and education McLeish was born on 1 May 1962. He was educated at Sevenoaks School in Kent and Emmanuel College, Cambridge where he was awarded a Bachelor of Arts degree in 1984 (MA, 1987) and a PhD in 1987 for research on fluid dynamics. Academic career McLeish began his academic career as a lecturer in physics at the University of Sheffield (1989 to 1993). He then moved to the University o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Citizenship
British nationality law prescribes the conditions under which a person is recognised as being a national of the United Kingdom. The six different classes of British nationality each have varying degrees of civil and political rights, due to the UK's historical status as a colonial empire. The primary class of British nationality is British citizenship, which is associated with the United Kingdom itself and the Crown dependencies. Foreign nationals may naturalize as British citizens after meeting a minimum residence requirement (usually five years) and acquiring settled status. British nationals associated with a current British Overseas Territory are British Overseas Territories citizens (BOTCs). Almost all BOTCs (except for those from Akrotiri and Dhekelia) have also been British citizens since 2002. Individuals connected with former British colonies may hold residual forms of British nationality, which do not confer an automatic right of abode in the United Kingdom and gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emmanuel College, Cambridge
Emmanuel College is a constituent college of the University of Cambridge. The college was founded in 1584 by Sir Walter Mildmay, Chancellor of the Exchequer to Elizabeth I. The site on which the college sits was once a priory for Dominican monks, and the College Hall is built on the foundations of the monastery's nave. Emmanuel is one of the 16 "old colleges", which were founded before the 17th century. Emmanuel today is one of the larger Cambridge colleges; it has around 500 undergraduates, reading almost every subject taught within the University, and over 150 postgraduates. Among Emmanuel's notable alumni are Thomas Young, John Harvard, Graham Chapman and Sebastian Faulks. Three members of Emmanuel College have received Nobel Prizes: Ronald Norrish, George Porter (both Chemistry, 1967) and Frederick Hopkins (Medicine, 1929). In every year from 1998 until 2016, Emmanuel was among the top five colleges in the Tompkins Table, which ranks colleges according to end-of-ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medieval Studies
Medieval studies is the academic interdisciplinary study of the Middle Ages. Institutional development The term 'medieval studies' began to be adopted by academics in the opening decades of the twentieth century, initially in the titles of books like G. G. Coulton's ''Ten Medieval Studies'' (1906), to emphasize a greater interdisciplinary approach to a historical subject. In American and European universities the term provided a coherent identity to centres composed of academics from a variety of disciplines including archaeology, art history, architecture, history, literature and linguistics. The Institute of Mediaeval Studies at St. Michael's College of the University of Toronto became the first centre of this type in 1929; it is now the Pontifical Institute of Mediaeval Studies (PIMS) and is part of the University of Toronto. It was soon followed by the Medieval Institute at the University of Notre Dame in Indiana, which was founded in 1946 but whose roots go back to the estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crazing
Crazing is the phenomenon that produces a network of fine cracks on the surface of a material, for example in a glaze layer. Crazing frequently precedes fracture in some glassy thermoplastic polymers. As it only takes place under tensile stress, the plane of the crazing corresponds to the stress direction. The effect is visibly distinguishable from other types of fine cracking because the crazing region has different refractive indices from surrounding material. Crazing occurs in regions of high hydrostatic tension, or in regions of very localized yielding, which leads to the formation of interpenetrating microvoids and small fibrils. If an applied tensile load is sufficient, these bridges elongate and break, causing the microvoids to grow and coalesce; as microvoids coalesce, cracks begin to form. Polymers Crazing occurs in polymers, because the material is held together by a combination of weaker Van der Waals forces and stronger covalent bonds. Sufficient local stress ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptation
A peculiarity of thermal motion of very long linear macromolecules in ''entangled'' polymer melts or concentrated polymer solutions is reptation. Derived from the word reptile, reptation suggests the movement of entangled polymer chains as being analogous to snakes slithering through one another. Pierre-Gilles de Gennes introduced (and named) the concept of reptation into polymer physics in 1971 to explain the dependence of the mobility of a macromolecule on its length. Reptation is used as a mechanism to explain viscous flow in an amorphous polymer. Sir Sam Edwards and Masao Doi later refined reptation theory. Similar phenomena also occur in proteins. Two closely related concepts are reptons and entanglement. A repton is a mobile point residing in the cells of a lattice, connected by bonds. Entanglement means the topological restriction of molecular motion by other chains. Theory and mechanism Reptation theory describes the effect of polymer chain entanglements on the relati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiphasic Liquid
A multiphasic liquid is a mixture consisting of more than two immiscible liquid phases. Biphasic mixtures consisting of two immiscible phases are very common and usually consist of an organic solvent and an aqueous phase ("oil and water"). Multiphasic liquids can be used for selective liquid-liquid extractions or for decorative purposes, e.g. in cosmetics. While it is possible to get multilayered phases by layering nonpolar and aqueous phases of decreasing densities on top of each other, these phases will not separate after mixing like true multiphasic liquids. Compositions The following types of multiphasic liquids exist: Triphasic systems * Nonpolar solvent / aqueous biphasic mixture *: ''e.g. using hexane, heptane, cyclohexane, or mineral oil as the nonpolar solvent'' ** Nonpolar solvent / polar solvent / salt / water **: ''e.g. 100 ml mineral oil, 100 ml isopropanol, 75 ml water, 35 g calcium chloride'' ** Nonpolar solvent / water-soluble polymer A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Philosophy
Natural philosophy or philosophy of nature (from Latin ''philosophia naturalis'') is the philosophical study of physics, that is, nature and the physical universe. It was dominant before the development of modern science. From the ancient world (at least since Aristotle) until the 19th century, ''natural philosophy'' was the common term for the study of physics (nature), a broad term that included botany, zoology, anthropology, and chemistry as well as what we now call physics. It was in the 19th century that the concept of science received its modern shape, with different subjects within science emerging, such as astronomy, biology, and physics. Institutions and communities devoted to science were founded. Isaac Newton's book '' Philosophiæ Naturalis Principia Mathematica'' (1687) (English: ''Mathematical Principles of Natural Philosophy'') reflects the use of the term ''natural philosophy'' in the 17th century. Even in the 19th century, the work that helped define much o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of York
The University of York (abbreviated as or ''York'' for post-nominals) is a collegiate research university, located in the city of York, England. Established in 1963, the university has expanded to more than thirty departments and centres, covering a wide range of subjects. Situated to the south-east of the city of York, the university campus is about in size. The original campus, Campus West, incorporates the York Science Park and the National Science Learning Centre, and its wildlife, campus lakes and greenery are prominent. In May 2007 the university was granted permission to build an extension to its main campus, on arable land just east of the nearby village of Heslington. The second campus, Campus East, opened in 2009 and now hosts four colleges and three departments as well as conference spaces, a sports village and a business start-up 'incubator'. The institution also leases King's Manor in York city centre. The university had a total income of £403.6 million in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Durham
Durham University (legally the University of Durham) is a collegiate university, collegiate public university, public research university in Durham, England, Durham, England, founded by an Act of Parliament in 1832 and incorporated by royal charter in 1837. It was the first recognised university to open in England for more than 600 years, after University of Oxford, Oxford and University of Cambridge, Cambridge, and is thus one of the institutions to be described as the third-oldest university in England debate, third-oldest university in England. As a collegiate university its main functions are divided between the academic departments of the university and its Colleges of Durham University, 17 colleges. In general, the departments perform research and provide teaching to students, while the colleges are responsible for their domestic arrangements and welfare. The university is a member of the Russell Group of British research universities after previously being a member of the 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymer Physics
Polymer physics is the field of physics that studies polymers, their fluctuations, mechanical properties, as well as the kinetics of reactions involving degradation and polymerisation of polymers and monomers respectively.P. Flory, ''Principles of Polymer Chemistry'', Cornell University Press, 1953. .Pierre Gilles De Gennes, ''Scaling Concepts in Polymer Physics'' CORNELL UNIVERSITY PRESS Ithaca and London, 1979M. Doi and S. F. Edwards, ''The Theory of Polymer Dynamics'' Oxford University Inc NY, 1986 While it focuses on the perspective of condensed matter physics, polymer physics is originally a branch of statistical physics. Polymer physics and polymer chemistry are also related with the field of polymer science, where this is considered the applicative part of polymers. Polymers are large molecules and thus are very complicated for solving using a deterministic method. Yet, statistical approaches can yield results and are often pertinent, since large polymers (i.e., polymers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Professor (highest Academic Rank)
Professor (commonly abbreviated as Prof.) is an academic rank at universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who professes". Professors are usually experts in their field and teachers of the highest rank. In most systems of academic ranks, "professor" as an unqualified title refers only to the most senior academic position, sometimes informally known as "full professor". In some countries and institutions, the word "professor" is also used in titles of lower ranks such as associate professor and assistant professor; this is particularly the case in the United States, where the unqualified word is also used colloquially to refer to associate and assistant professors as well. This usage would be considered incorrect among other academic communities. However, the otherwise unqualified title "Professor" designated with a capital letter nearly always refers to a full profess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
