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IFISC Seminar on Wednesday, Jun 14, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 09 Jun '23

09 Jun '23

IFISC Seminar on Wednesday Jun 14, 2023 at 14:30 Place: IFISC Seminar Room Title: Transition probabilities and diffusion coefficient in interacting particle systems Speaker: Miguel Hoyuelos, IFIMAR, Universidad Nacional de Mar del Plata, Argentina Abstract: Transport processes in dense fluids have been widely studied during the last century. Despite these efforts, a rigorous theory is only available at the small concentration limit (Chapman-Enskog method and Boltzmann equation). A continuous system can be divided into cells small enough to be point-like and large enough to contain many particles (as in deriving hydrodynamic equations, we can consider each cell to be in local equilibrium). A general result for transition rates between neighboring cells, W, has recently been obtained (Di Muro and Hoyuelos PRE 104, 044104, 2021). It gives the dependence of W on the thermodynamic state (interactions are represented by the excess chemical potential). It reproduces Darken&#39;s equation (a relationship between the tracer and collective diffusion coefficients, Dc and D, which holds in the absence of memory effects), and predicts that the collective diffusivity does not depend on the thermodynamic state. It also suggests that D /D_0, where D_0 is the tracer diffusivity at low concentration, is a thermodynamic function. These results were verified with molecular dynamics simulations. Furthermore, experimental results for diffusion in solids are consistent with the theory. Its main limitation is that it does not include memory effects. The talk aims to show that, despite this limitation, the theory is able of providing some new insights into an old problem. Zoom link: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/transition-probabilities-and-diffusion-coefficient/

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IFISC Colloquium on Thursday, Jun 15, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 09 Jun '23

09 Jun '23

IFISC Colloquium on Thursday Jun 15, 2023 at 14:30 Place: IFISC Seminar Room Title: Stochastic thermodynamics of Boolean circuits, finite automata and Turing machines Speaker: David Wolpert, Santa Fe Institute, International Center for Theoretical Physics, Complexity Science Hub, and Arizona State University Abstract: The central concern of computational complexity theory is the&nbsp;minimal &quot;resource costs&quot; needed to perform a given computation&nbsp;on a given type of computer. In the real world, some of the most important resource costs of performing a computation are&nbsp;thermodynamic, e.g., the amount of heat it produces. In this&nbsp;talk I will summarize recent results on how thermodynamic resource costs depend on the computation being performed and the computer&nbsp;being used to perform them. I will start&nbsp;with&nbsp;some&nbsp;new&nbsp;results&nbsp;concerning&nbsp;the&nbsp;thermodynamic&nbsp;costs&nbsp;of&nbsp;performing&nbsp;a&nbsp;given&nbsp;computation in a (loop-free and branch-free) digital circuit.&nbsp;Next I will summarize some results concerning deterministic finite automata (DFA). After that I will review results on how considering the&nbsp;minimal entropy&nbsp;production (EP) of computing a desired output on a TM,&nbsp;rather than the minimal size of an input string that causes the&nbsp;TM&nbsp;to produce that output (i.e., the output&#39;s Kolmogorov complexity), results&nbsp;in a correction term to Kolmogorov complexity. I will end by&nbsp;describing the vast new set of research issues at the intersection of&nbsp;stochastic thermodynamics and computer science theory, issues that&nbsp;expand both fields. Presential in the seminar room, and Zoom stream at&nbsp;https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/stochastic-thermodynamics-of-boolean-circuits-fini/

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Talk on Friday, Jun 16, 2023 at 11:00
by semfis＠ifisc.uib-csic.es 09 Jun '23

09 Jun '23

Talk on Friday Jun 16, 2023 at 11:00 Place: IFISC Seminar Room Title: The architecture of Multifunctional Ecological Networks Speaker: Mar Cuevas-Blanco, IFISC Abstract: This study proposes a novel approach to assess the functional importance of species in an ecosystem by considering their multiple ecological roles, i.e. their multifunctionality. We introduce the concept of function keystonness, which focuses on the robustness of ecosystems against perturbations of ecological functions. The study is based on direct observations recently collected in the islet Na Redona of 16 plant species and 675 animal/fungus species, encompassing 1537 weighted interactions across 6 ecological functions, including pollination, herbivory, seed dispersion, and pathogen-, saprotrophic-, and symbiotic-fungal interaction. We formalize the complete relational dataset as a Resource-Consumer-Function tensor, which is interpreted as a weighted, multipartite, multilayer network. By integrating out the consumer index, we construct a Multifunctional Ecological Network, which shows a stylized nested structure suggesting that certain ecological functions and plant sp ecies can be classified as generalists&nbsp;or specialists. By projecting such into the function and plant class, we quantify the ecosystem robustness against perturbations of plant species and ecological functions. The framework highlights the importance of preserving weak ties to maintain ecosystem assembly and its multifunctionality, and overall offers a dual insight from the species and functional perspectives that can guide conservation efforts aimed at reducing biodiversity loss. Url event:https://ifisc.uib-csic.es/en/events/seminars/the-architecture-of-multifunctional-ecological-net/

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Reminder: Talk, TODAY - Thursday, Jun 08, 2023 at 11:00
by semfis＠ifisc.uib-csic.es 08 Jun '23

08 Jun '23

Talk on Thursday Jun 08, 2023 at 11:00 Place: IFISC Seminar Room Title: Understanding the structure and functioning of oceans’ microbiomes: toward a holistic view Speaker: Daniele Iudicone , Stazione Zoologica Anton Dohrn Abstract: Plankton is the main actor in the largest terrestrial biome and the modulator of processes related to key ecosystem services, such as climate and food supply through the carbon cycle. Current gaps in the knowledge of its biology and ecology are a serious limitation to the assessment of its status and dynamics; the latter are a major source of uncertainty in current predictive models of ocean ecosystem services in the presence of anthropogenic stressors. Many of the current limitations come from a terrestrial bias in theoretical frameworks. Indeed, pelagic plankton communities are in highly dynamic equilibrium under physical and chemical constraints and feedbacks, an equilibrium that also takes into account the stochasticity inherent in many processes (from gene expression to nutrient availability and encounter rates). To understand their structure and functioning, therefore, we must adopt multidisciplinary approaches that allow us to make simultaneous sense of three complex coupled systems, consisting of the turbulent fluids that make up the atmosphere and oceans, the internal biology of organisms and the network of their interactions. We thus propose to combine remote sensing with extensive in situ observations, state-of-the-art meta-omics approaches with systems biology, and theoretical ecology with artificial intelligence to advance theories, models and ecological paradigms to promote the seascape as a new conceptual framework. Url event:https://ifisc.uib-csic.es/en/events/seminars/understanding-the-structure-and-functioning-of-oce/

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Talk on Thursday, Jun 08, 2023 at 11:00
by semfis＠ifisc.uib-csic.es 02 Jun '23

02 Jun '23

Talk on Thursday Jun 08, 2023 at 11:00 Place: IFISC Seminar Room Title: Understanding the structure and functioning of oceans’ microbiomes: toward a holistic view Speaker: Daniele Iudicone , Stazione Zoologica Anton Dohrn Abstract: Plankton is the main actor in the largest terrestrial biome and the modulator of processes related to key ecosystem services, such as climate and food supply through the carbon cycle. Current gaps in the knowledge of its biology and ecology are a serious limitation to the assessment of its status and dynamics; the latter are a major source of uncertainty in current predictive models of ocean ecosystem services in the presence of anthropogenic stressors. Many of the current limitations come from a terrestrial bias in theoretical frameworks. Indeed, pelagic plankton communities are in highly dynamic equilibrium under physical and chemical constraints and feedbacks, an equilibrium that also takes into account the stochasticity inherent in many processes (from gene expression to nutrient availability and encounter rates). To understand their structure and functioning, therefore, we must adopt multidisciplinary approaches that allow us to make simultaneous sense of three complex coupled systems, consisting of the turbulent fluids that make up the atmosphere and oceans, the internal biology of organisms and the network of their interactions. We thus propose to combine remote sensing with extensive in situ observations, state-of-the-art meta-omics approaches with systems biology, and theoretical ecology with artificial intelligence to advance theories, models and ecological paradigms to promote the seascape as a new conceptual framework. Url event:https://ifisc.uib-csic.es/en/events/seminars/understanding-the-structure-and-functioning-of-oce/

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Reminder: IFISC Seminar, TODAY - Thursday, Jun 01, 2023 at 15:00
by semfis＠ifisc.uib-csic.es 01 Jun '23

01 Jun '23

IFISC Seminar on Thursday Jun 01, 2023 at 15:00 Place: IFISC Seminar Room Title: Implementing engrams from a machine learning perspective: matching for prediction Speaker: Jesús Marco, Instiituto de Física de Cantabria Abstract: We will discuss how we might design a computer system to implement memory representations (engrams) using neural networks, with the main aim of exploring new ideas using machine learning techniques, guided by challenges in neuroscience.&nbsp; We will analyze the use of latent neural spaces as indexes for storing and retrieving information in a compressed format based in autoencoders, an unsupervised method supporting predictive learning. We then consider how different states in latent neural spaces corresponding to different types of sensory input could be linked by synchronous activation, providing the basis for a sparse implementation of memory using concept neurons. Finally, we will comment on some of the challenges and questions that link neuroscience and data science and that could have implications for both fields. Zoom link: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/implementing-engrams-from-a-machine-learning-persp/

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IFISC Seminar on Thursday, Jun 01, 2023 at 15:00
by semfis＠ifisc.uib-csic.es 26 May '23

26 May '23

IFISC Seminar on Thursday Jun 01, 2023 at 15:00 Place: IFISC Seminar Room Title: Implementing engrams from a machine learning perspective: matching for prediction Speaker: Jesús Marco, Instiituto de Física de Cantabria Abstract: We will discuss how we might design a computer system to implement memory representations (engrams) using neural networks, with the main aim of exploring new ideas using machine learning techniques, guided by challenges in neuroscience.&nbsp; We will analyze the use of latent neural spaces as indexes for storing and retrieving information in a compressed format based in autoencoders, an unsupervised method supporting predictive learning. We then consider how different states in latent neural spaces corresponding to different types of sensory input could be linked by synchronous activation, providing the basis for a sparse implementation of memory using concept neurons. Finally, we will comment on some of the challenges and questions that link neuroscience and data science and that could have implications for both fields. Zoom link: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/implementing-engrams-from-a-machine-learning-persp/

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Reminder: Talk, TODAY - Thursday, May 25, 2023 at 12:00
by semfis＠ifisc.uib-csic.es 25 May '23

25 May '23

Talk on Thursday May 25, 2023 at 12:00 Place: IFISC Seminar Room Title: Interactive visualisation Dashboards : Transforming Research Papers into Dynamic Web Applications Speaker: Akshay Tiwari, IFISC Abstract: Visualization plays a pivotal role in research, especially for complex scientific projects involving numerous parameters. Imagine a scenario where, in addition to reading your paper filled with mathematical models and theoretical postulates, your audience could interact with your research. Picture them playing with parameters, visually comprehending the implications of your findings, all at their own pace and on any device - be it a phone, laptop, or PC. This session/Talk is to illuminate the potential of transforming your research papers into highly visual, interactive, and widely accessible web applications. The talk will provide an overview of a recent project where such a transformation was actualized, illustrating the transformation of a paper into a dynamic web application. It will also offer insights into the underlying architecture and building blocks of such projects, giving you an understanding of their capabilities and limitations. Moreover, it will showcase the future potential and possibilities that this innovative technology holds. So, if you&#39;re excited about discovering novel ways to present your research, or if you&#39;re intrigued by the intersection of research, web development, and data visualization, this talk is tailor-made for you. Join me as we delve into the future of research dissemination, exploring one interactive web application at a time. Url event:https://ifisc.uib-csic.es/en/events/seminars/interactive-visualisation-dashboards-transforming/

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Reminder: Outreach Event, TODAY - Tuesday, May 23, 2023 at 19:00
by semfis＠ifisc.uib-csic.es 23 May '23

23 May '23

Outreach Event on Tuesday May 23, 2023 at 19:00 Place: Café A Tres Bandas, Plaza de Barcelona 20 Title: Pint of Science 23: Detrás del enchufe: cómo funciona la red eléctrica Speaker: María Martínez, IFISC (UIB-CSIC) Abstract: Desde Tesla hasta las smart grids, la red el&eacute;ctrica ha evolucionado hasta convertirse en una de las infraestructuras m&aacute;s importantes del mundo. Exploraremos la complejidad de la red y su funcionamiento, incluyendo la importancia de la sincronizaci&oacute;n y la estabilidad. Abordaremos algunos de los desaf&iacute;os actuales, como los apagones y los efectos del cambio clim&aacute;tico. Hablaremos de energ&iacute;as renovables y c&oacute;mo se integran en la red, y veremos tecnolog&iacute;as emergentes que mejoran la eficiencia y seguridad. M&aacute;s informaci&oacute;n:&nbsp;<a href="https://pintofscience.es/event/nuestra-sociedad-grafos-borrachos-red-electrica-y-flamenco">https://pintofscience.es/event/nuestra-sociedad-grafos-borrachos-red-electrica-y-flamenco</a> Url event:https://ifisc.uib-csic.es/en/events/seminars/pint-of-science-23-detras-del-enchufe-como-funcion/

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Reminder: Outreach Event, TODAY - Tuesday, May 23, 2023 at 19:00
by semfis＠ifisc.uib-csic.es 23 May '23

23 May '23

Outreach Event on Tuesday May 23, 2023 at 19:00 Place: Café A Tres Bandas, Plaza de Barcelona 20 Title: Pint of Science 23: Flamenco: el arte que habla por sí solo Speaker: Pablo Rosillo, IFISC (UIB-CSIC) Abstract: &nbsp; Ol&eacute;. Arsa. Ay. Exploraremos el significado de las letras del flamenco, viajando por sus palos desde Jerez hasta el barrio de Triana pasando por el Albayc&iacute;n, y veremos qu&eacute; tienen que decir la IA y el Machine Learning en el campo del flamenco computacional. Aprenderemos a distinguir algunos elementos de la rica y variada cultura musical que representa el flamenco, y quiz&aacute; entenderemos por qu&eacute; sigue, siglos despu&eacute;s, cautivando al p&uacute;blico de todo el mundo. &nbsp; M&aacute;s informaci&oacute;n:&nbsp;<a href="https://pintofscience.es/event/nuestra-sociedad-grafos-borrachos-red-electrica-y-flamenco">https://pintofscience.es/event/nuestra-sociedad-grafos-borrachos-red-electrica-y-flamenco</a> Url event:https://ifisc.uib-csic.es/en/events/seminars/pint-of-science-23-flamenco-el-arte-que-habla-por/

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