From panos at ifpan.edu.pl Thu Apr 2 07:25:22 2026 From: panos at ifpan.edu.pl (Panagiotis Theodorakis) Date: Thu, 02 Apr 2026 07:25:22 +0200 Subject: [Soft-matter] Fwd: Prof. Alidad Amirfazli - York U Canada - Auditorium IP PAS - April 8 - 11:00 am In-Reply-To: References: Message-ID: Dear all, Prof. Alidad Amirfazli (York University, Canada) will visit the Institute of Physics PAS and will give a seminar (detail below and attached) in the Leonard Sosnowski Auditorium IPPAS and on Zoom on April 8 at 11:00 am. You are all welcome to attend this event. Kind regards, Panos -----Announcement ------- You are cordially invited to _The End of the Road for Empirical Correlations for Drop Impact Studies: A Machine Learning Approach_ _given by_ Prof. Alidad Amirfazli _Department of Mechanical Engineering, York University, Toronto, Canada_ on April 8, 2026, at 11:00 am CET in the Leonard Sosnowski Auditorium, Al. Lotnik?w 32/46, 02-668 Warszawa at IP PAS and on Zoom: https://zoom.us/j/91037790833?pwd=3vxbYujtlEAe5dJUx5KNisIIXRBbaJ.1 (Meeting id: 910 3779 0833, code: 127945) Duration: 45 min + question time Abstract of the talk: There are many different empirical correlations in the literature to describe the maximum spreading of droplets upon their impact onto a surface. The reason for this has been various parameter ranges or impact conditions past studies have used to establish each of the correlations as per We and Re numbers, or wettability of the substrate. I will present our latest work on droplet impact onto surfaces where we have used a novel approach to predict the maximum spreading of a droplet in a unified matter over a wide range of Weber, Reynolds numbers, and wettability as characterized by contact angle. Regression models using machine learning demonstrate high accuracy in predicting the maximum spreading, providing valuable insights into the underlying dynamics of droplet impacts using dependency parameters (i.e., SHAP analysis). This approach surpasses traditional methods reliant on empirical correlations, offering robust generalization to unseen scenarios, both within and beyond the range of training data, and demonstrating significant transformative potential to advance the field of droplet impact studies. Furthermore, machine learning can be used to effectively generate detailed regime maps also for classification of impact outcomes as will be discussed for compound droplet impact. About the Speaker: Prof. Alidad Amirfazli is the founding Chair of the Department of Mechanical Engineering at York University, Toronto, Canada, where he is currently a Professor. His research interests include surface engineering, heat transfer, and fluid mechanics, particularly focusing on droplet surface interactions, and recently integration of AI in research. Prof. Amirfazli has contributed significantly to his field with numerous publications and patents, and he has been recognized with several awards and honors for his work, e.g. King Charles III Coronation Medal, Annual Killam Professorship, appointment to the College of New Scholars, Royal Society of Canada, and being a Fellow of Engineering Institute of Canada. He has also been involved in extensive collaboration with both industry and academic partners. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Announcement_Alidad-Amirfazli-YorkU.pdf Type: application/pdf Size: 360737 bytes Desc: not available URL: From panos at ifpan.edu.pl Thu Apr 2 08:32:06 2026 From: panos at ifpan.edu.pl (Panagiotis Theodorakis) Date: Thu, 02 Apr 2026 08:32:06 +0200 Subject: [Soft-matter] Prof. Alidad Amirfazli - York U Canada - Auditorium IP PAS - April 8 - 11:00 am In-Reply-To: References: Message-ID: <700fdb951e71e038f8421bbf6c3433be@ifpan.edu.pl> Dear all, Prof. Alidad Amirfazli (York University, Canada) will visit the Institute of Physics PAS and will give a seminar (details below) in the Leonard Sosnowski Auditorium IPPAS and on Zoom on April 8 at 11:00 am. You are all welcome to attend this event. Kind regards, Panos -----Announcement ------- You are cordially invited to _The End of the Road for Empirical Correlations for Drop Impact Studies: A Machine Learning Approach_ _given by_ Prof. Alidad Amirfazli _Department of Mechanical Engineering, York University, Toronto, Canada_ on April 8, 2026, at 11:00 am CET in the Leonard Sosnowski Auditorium, Al. Lotnik?w 32/46, 02-668 Warszawa at IP PAS and on Zoom: https://zoom.us/j/91037790833?pwd=3vxbYujtlEAe5dJUx5KNisIIXRBbaJ.1 (Meeting id: 910 3779 0833, code: 127945) Duration: 45 min + question time Abstract of the talk: There are many different empirical correlations in the literature to describe the maximum spreading of droplets upon their impact onto a surface. The reason for this has been various parameter ranges or impact conditions past studies have used to establish each of the correlations as per We and Re numbers, or wettability of the substrate. I will present our latest work on droplet impact onto surfaces where we have used a novel approach to predict the maximum spreading of a droplet in a unified matter over a wide range of Weber, Reynolds numbers, and wettability as characterized by contact angle. Regression models using machine learning demonstrate high accuracy in predicting the maximum spreading, providing valuable insights into the underlying dynamics of droplet impacts using dependency parameters (i.e., SHAP analysis). This approach surpasses traditional methods reliant on empirical correlations, offering robust generalization to unseen scenarios, both within and beyond the range of training data, and demonstrating significant transformative potential to advance the field of droplet impact studies. Furthermore, machine learning can be used to effectively generate detailed regime maps also for classification of impact outcomes as will be discussed for compound droplet impact. About the Speaker: Prof. Alidad Amirfazli is the founding Chair of the Department of Mechanical Engineering at York University, Toronto, Canada, where he is currently a Professor. His research interests include surface engineering, heat transfer, and fluid mechanics, particularly focusing on droplet surface interactions, and recently integration of AI in research. Prof. Amirfazli has contributed significantly to his field with numerous publications and patents, and he has been recognized with several awards and honors for his work, e.g. King Charles III Coronation Medal, Annual Killam Professorship, appointment to the College of New Scholars, Royal Society of Canada, and being a Fellow of Engineering Institute of Canada. He has also been involved in extensive collaboration with both industry and academic partners. -------------- next part -------------- An HTML attachment was scrubbed... URL: From mklisicki at uw.edu.pl Tue Apr 7 09:12:38 2026 From: mklisicki at uw.edu.pl (Maciej Lisicki) Date: Tue, 7 Apr 2026 09:12:38 +0200 Subject: [Soft-matter] Soft Matter & Complex Systems Seminar on 10 Apr 2026 Message-ID: <9B2983A0-14C6-4806-B989-DF440905C0A7@uw.edu.pl> Dear Soft Matter & Complex Systems Colleagues and Friends, On Friday 10 April 2026 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw; room 1.40) we are hosting a seminar, during which Jacek Mi?kisz (MIM UW) will give a talk Phase transitions in stochastic evolutionary games on graphs Short abstract, general discussion We discuss similarities and differences between systems of interacting spins in the ferromagnetic Ising model and systems of interacting players in evolutionary games. We compare Nash equilibria to ground states and phase transitions in both models. Long abstract, a case study We examine the impact of the maintenance cost of social links on cooperative behavior in the Prisoner?s Dilemma game on the Barab?si-Albert scale-free network with a pairwise stochastic imitation. We show by means of Monte Carlo simulations and pair approximation that the cooperation frequency changes abruptly from an almost full cooperation to a much smaller value when we increase the cost of maintaining links. In the critical region, the stationary distribution is bimodal and the system oscillates between two states: the state with almost full cooperation and one with coexisting strategies. We show that the critical region shrinks with the increasing size of the population. However, the expected time the system spends in a metastable state before switching to the other one does not change as a function of the system?s size, which precludes the existence of two stationary states in the thermodynamic limit of the infinite population. Bibliography J. Mi?kisz and J. Mohamadichamgavi, Phase transitions in the prisoner?sdilemma game on the Barab?si-Albert graph with participation cost, Phys.Rev. E 112: L032302 (2025). https://www.mimuw.edu.pl/~miekisz/phtrpre.pdf J. Mi?kisz, J. Mohamadichamgavi and J. ?acki, Phase transitions in thePrisoner?s Dilemma game on scale-free networks, BioPhysMath 1: 9 pages (2024). https://www.mimuw.edu.pl/~miekisz/phasetrpdbpm.pdf We warmly welcome everyone to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 2.63 (2nd floor). Maria Ekiel-Je?ewska Maciej Lisicki Piotr Szymczak Panagiotis Theodorakis -------------- next part -------------- An HTML attachment was scrubbed... URL: From s.zukowski at uw.edu.pl Tue Apr 7 12:20:00 2026 From: s.zukowski at uw.edu.pl (=?UTF-8?B?U3RhbmlzxYJhdyDFu3Vrb3dza2k=?=) Date: Tue, 7 Apr 2026 12:20:00 +0200 Subject: [Soft-matter] Belgrade School of Complex Systems, June 21-27, 2026 In-Reply-To: References: Message-ID: Dear all, Just a gentle reminder that less than a week remains to submit an abstract for the *Belgrade School of Complex Systems* (https://becomplex.net/). In case you were planning to apply, the deadline is *April 11, 2026*. Looking forward to seeing you in Petnica, The organizing team of BeComplex2026 pt., 20 lut 2026 o 19:21 Stanis?aw ?ukowski napisa?(a): > Dear all, > > > > The Faculty of Physics of the University of Belgrade is organizing an > international workshop BeComplex2026 ("Belgrade School of Complex Systems", > https://becomplex.net/) which will take place June 21-27, 2026 at the > Petnica Science Center in Serbia (https://petnica.rs/about-us/). > > > > The workshop will consist of a series of mini-courses on a variety of > topics within the broad field of complex systems as well as poster and > short talk sessions where all the participants will be able to present > their work. The participants will spend one week on campus together, > allowing them to get to know each other well and start collaborations. > Besides the main workshop focused on complex systems in general, there will > also be a parallel, specialized workshop focused on climate science and > meteorology, which will last only three days. > > > > Applications should be submitted through the workshop web page, > https://becomplex.net/. The deadline for application and abstract > submission is April 11, 2026. The registration fee of 320e includes > full-board accommodation on campus (including breakfast, lunch, and > dinner), as well as organised transport from Belgrade to Petnica. > > > > If you have any questions, please write to us at > predrag.popovic at ff.bg.ac.rs . > > > > We would appreciate it if you could share this information with your > colleagues. > > > > Looking forward to seeing you in Petnica, > > The organizing team of BeComplex2026 > -------------- next part -------------- An HTML attachment was scrubbed... URL: From mklisicki at uw.edu.pl Wed Apr 8 13:29:17 2026 From: mklisicki at uw.edu.pl (Maciej Lisicki) Date: Wed, 8 Apr 2026 13:29:17 +0200 Subject: [Soft-matter] Lecture by G.G. Fuller on 13 April 2026 Message-ID: <8054660F-33A9-489E-8D8C-3EF3C8763671@uw.edu.pl> Dear Soft Matter Friends & Colleagues, On Monday 13 April 2026 at 12:10 pm in Lecture Theatre 0.03 at the Faculty of Physics, University of Warsaw, Prof. Gerald G. Fuller (Stanford University) will give a special lecture entitled ?Stabilization of the Tear Film and Foams with a Dash of Salt? The lecture will focus on the stability of the tear film and the physics of foams. The first part will discuss research into the stability of the tear film, which is crucial for the health of the eye?s surface. The second part of the lecture will address the stability of foams and explain why foaming is easier in seawater than in fresh water. Biographic note: Prof. Gerald Fuller is a professor of chemical engineering at Stanford University, where he has worked since 1980. He obtained his PhD from Caltech and his bachelor?s degree from the University of Calgary. His research interests include interfacial fluid mechanics and rheology, with a particular focus on biophysical phenomena, foams and emulsions. He is a recipient of the prestigious Bingham Medal, a member of the National Academy of Engineering and the American Academy of Arts and Sciences. He has also been awarded honorary doctorates from the University of Crete and KU Leuven. He currently serves as Secretary-General of the International Committee on Rheology and Editor-in-Chief of the journal Physics of Fluids. We warmly invite everyone interested! With best wishes, Maciej Lisicki -------------- next part -------------- An HTML attachment was scrubbed... URL: From s.zukowski at uw.edu.pl Mon Apr 13 12:28:00 2026 From: s.zukowski at uw.edu.pl (=?UTF-8?B?U3RhbmlzxYJhdyDFu3Vrb3dza2k=?=) Date: Mon, 13 Apr 2026 12:28:00 +0200 Subject: [Soft-matter] Warsaw Symposium "Patterns: On Growth and Form", May 26, 2026 In-Reply-To: References: Message-ID: Dear all, Just a gentle reminder that less than a week remains to register you participation in the Warsaw Symposium "Patterns: On Growth and Form" We kindly ask for your registration even if you do not present anything. The deadline is *April 17, 2026*. You can register here . Looking forward to seeing you in Warsaw, Stanis?aw ?ukowski on behalf of the organizers czw., 19 mar 2026 o 13:39 Stanis?aw ?ukowski napisa?(a): > Dear all, > > We would like to warmly invite you to participate in the Warsaw Symposium > "Patterns: On Growth and Form" > . The symposium aims to > promote knowledge exchange among like-minded researchers working in > seemingly disparate fields: soft matter, fluid dynamics, biophysics and > more. > > The event will take place on *Tuesday, May 26, 2026* at the *University > of Warsaw's Ochota Campus*. Attendees and presenters are kindly requested > to register here before April 17, > 2026. There is no registration fee. > > We look forward to welcoming you! > > Kind regards, > Stanis?aw ?ukowski on behalf of the organizers > -------------- next part -------------- An HTML attachment was scrubbed... URL: From mklisicki at uw.edu.pl Mon Apr 13 20:46:55 2026 From: mklisicki at uw.edu.pl (Maciej Lisicki) Date: Mon, 13 Apr 2026 20:46:55 +0200 Subject: [Soft-matter] Soft Matter & Complex Systems Seminar on 17 Apr 2026 Message-ID: Dear Soft Matter & Complex Systems Colleagues and Friends, On Friday 17 April 2026 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw; room 1.40) we are hosting a seminar, during which Emilia Trudnowska (Institute of Oceanology, Polish Academy of Sciences) will give a talk Ocean Particles in Motion: Patchiness, Fluxes, and Ecosystem Links from an In Situ Perspective Abstract Particles in the ocean?ranging from microscopic to larger aggregates - marine snow are fundamental carriers of carbon, energy, and ecological interactions. I will present an in situ perspective on those aspects and what are the methodologies and technologies used by oceanographers for direct observations of particles in their natural environment. These include laser counters, underwater vision profilers, sediment traps, and autonomous platforms that resolve particle. My work has been oscillating around explorations how particle dynamics vary across spatial and temporal scales and the processes that shape particles distribution, transformation, and ecological significance across diverse marine environments: Arctic (Svalbard, Greenland, Barents Sea), Antarctic, sub-Antarctic (Beagle Channel), north Atlantic (Gulf Stream, Norwegian Sea), and Pacific (Monterey Bay). The presented examples of key processes governing particles dynamics include: 1) patchiness, 2) models of secondary production based on size structure, 3) particle?plankton co-existance, 4) classification of particles into morphocategories that reflect their origin and transformation pathways, 5) particle flux and sinking rates in relation to carbon export and ecosystem connectivity, 6) mapping approaches that link particle distributions to food availability for higher trophic levels such as fish and seabirds, 7) the effects of glacier melting o particle pools and transformations, 8) resuspension of particles in kelp forest systems, and 9) seasonal variability in shaping particle abundance and composition. By integrating observational techniques with process-based understanding, this lecture underscores the importance of particles as a unifying framework for studying marine ecosystems, and aims to stimulate new perspectives for discussion and collaboration. We warmly welcome everyone to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 2.63 (2nd floor). Maria Ekiel-Je?ewska Maciej Lisicki Piotr Szymczak Panagiotis Theodorakis -------------- next part -------------- An HTML attachment was scrubbed... URL: From mklisicki at uw.edu.pl Mon Apr 20 16:49:38 2026 From: mklisicki at uw.edu.pl (Maciej Lisicki) Date: Mon, 20 Apr 2026 15:49:38 +0100 Subject: [Soft-matter] Soft Matter & Complex Systems Seminar on 24 Apr 2026 Message-ID: <869AFFFE-A124-4BA6-8CFA-D6B75165F1C9@uw.edu.pl> Dear Soft Matter & Complex Systems Colleagues and Friends, On Friday 24 April 2026 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw; room 1.40) we are hosting a seminar, during which Maciej Matyka (Faculty of Physics and Astronomy, University of Wroc?aw) will give a talk Computational Modelling with Single Prompts Abstract Regardless of how we look at AI large language models (LLMs) - as a massive collection of data from which we can cleverly extract information, as an assistant who can perform simple tasks for us and write simple codes, or perhaps as a machine that randomly selects words, in a sense guided by what it have had has seen in the past - we are undoubtedly witnessing a revolution.In the seminar, I will discuss selected aspects of the use of modern large language models, such as Gemini, Grok, ChatGPT, DeepSeek, and Claude. I will discuss the concept of a single prompt and its use to generate computer code for dozens of models across computational physics, statistical physics, computational fluid dynamics. I will illustrate the presentation with practical examples from statistical and soft-matter physics and include results of students from the modelling class given by me at the same week at UW. We warmly welcome everyone to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 2.63 (2nd floor). Maria Ekiel-Je?ewska Maciej Lisicki Piotr Szymczak Panagiotis Theodorakis -- Dr hab. Maciej Lisicki, prof. UW Institute of Theoretical Physics | Faculty of Physics University of Warsaw softmatter.fuw.edu.pl -------------- next part -------------- An HTML attachment was scrubbed... URL: