IJS KOLOKVIJ,torek, 24. 06. 2014; ob 13. uri; prof. dr. Roderick Melnik

[Tanja Debevec]

Vabimo vas na 22. predavanje iz sklopa "Kolokviji na IJS" v letu 2013/14, ki bo v torek, 24. junija 2014, ob 13. uri v Veliki predavalnici Instituta »Jožef Stefan«  na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu http://www.ijs.si/ijsw/Koledar_prireditev, posnetke preteklih predavanj pa na http://videolectures.net/kolokviji_ijs. 

 

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prof. dr. Roderick Melnik

Univerza Wilfrid Laurier, Waterloo, Kanada

 

Interagirajoče skale in sklopljeni pojavi v naravi in v modelih

Interagirajoče časovne in prostorske skale so univerzalne. Pogosto so značilne za sklopljene pojave, ki jih opazimo v naravi in v umetnih sistemih. Večskalni sklopljeni pojavi so ključni za razumevanje vseh sistemov, ki nas obkrožajo – od globalnih sistemov, kot je podnebje našega planeta, do drobnih kvantnih pik ter vse do gradnikov življenja, npr. nukleinske kisline. Predstavili bomo pregled izbranih večskalnih problemov, na katere naletimo pri raziskovanju fizikalnih, inženirskih in bioloških sistemov. Začeli bomo z drobnimi objekti, znanimi kot nizkodimenzionalne nanostrukture, in na primerih ilustrirali, zakaj je nanoskopska skala vse bolj pomembna pri tehnologiji, ki jo uporabljamo v vsakdanjem življenju.  S popolnoma sklopljenimi matematičnimi modeli bomo pokazali, kako je mogoče na podlagi dosedanjih rezultatov z analizo vpliva večskalnih pojavov na lastnosti drobnih objektov razviti novo teorijo. Govorili bomo tudi o sklopljenih večskalnih problemih v bioloških strukturah na osnovi ribonukleinske kisline, ki nudi v primerjavi z dezoksiribonukleinsko kislino in nekaterimi drugimi biološkimi molekulami mnogo večji razpon interakcij in večjo konformacijsko fleksibilnost, kar jo izpostavlja kot pomemben funkcionalen material v mnogih bioinženirskih in medicinskih aplikacijah. Predstavili bomo numerične simulacije takih bioloških struktur z našo grobozrnato metodologijo.

Predavanje bo v angleščini.

Lepo vabljeni!

 

 

 




We invite you to the 22nd Institute colloquium in the academic year 2013/14. The colloquium will be held on Tuesday June 24, 2014 at 1 PM in the main Institute lecture hall, Jamova 39, Ljubljana. To read the abstract click  http://www.ijs.si/ijsw/Koledar_prireditev. Past colloquia are posted on  http://videolectures.net/kolokviji_ijs.

 

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prof. dr. Roderick Melnik

Wilfrid Laurier University, Waterloo, Canada

 

Interacting Scales and Coupled Phenomena in Nature and Models

 

Interacting time and space scales are universal. They frequently go hand in hand with coupled phenomena which can be observed in nature and man-made systems. Such multiscale coupled phenomena are fundamental to our knowledge about all the systems surrounding us, ranging from such global systems as the climate of our planet, to such tiny ones as quantum dots, and all the way down to the building blocks of life such as nucleic acid biological molecules. In this talk we will provide an overview of some coupled multiscale problems that we face in studying physical, engineering, and biological systems. We will start from considering tiny objects, known as low dimensional nanostructures, and will give examples on why the nanoscale is becoming increasingly important in the applications affecting our everyday lives. By using fully coupled mathematical models, we will show how to build on the previous results in developing a new theory, while analyzing the influence of coupled multiscale effects on properties of these tiny objects. We will also talk about coupled multiscale problems in studying biological structures constructed from ribonucleic acid. As compared to deoxyribonucleic acid and some other bio-molecules, ribonucleic acid offers not only a much greater variety of interactions but also great conformational flexibility, making it an important functional material in many bioengineering and medical applications. Examples of numerical simulations of such biological structures will be shown, based on our developed coarse-grained methodologies.

 

Cordially invited!

 

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