May 2022 - semfis - Mailing lists@ IFISC

Reminder: Talk, TODAY - Monday, May 30, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 30 May '22

30 May '22

Talk on Monday May 30, 2022 at 14:30 Place: IFISC Seminar Room Title: Exploring selective breeding as a strategy to increase thermal resilience of reef-building corals Speaker: Manuel Aranda, KAUST Abstract: Coral reefs are among the most biodiverse ecosystems and the services they provide are valued at 10 trillion USD per year. Their evolutionary success is attributed to productive symbioses between coral animals, photosynthetic endosymbionts, and beneficial bacteria which grow the living foundation of the ecosystem. However, coral symbioses are very sensitive to changes in the environment and are negatively impacted by the effects of climate change. Anomalously warm temperatures cause coral bleaching, coral starvation, and death. Warm water bleaching events have contributed to significant losses of coral cover and coral reefs recently suffered their third global die-off due to rising sea temperatures. Some regions are now experiencing several bleaching events per decade, which hinders their ability to recover from these disturbances. The future persistence of coral ree fs is dependent on evolutionary responses to warming, yet there is widespread concern that rates of warming will outpace the adaptive capacity of the coral host and lead to extinctions and ecosystem losses. These concerns have prompted calls for unconventional conservation strategies that accelerate adaptation by producing genotypes with enhanced heat tolerance through selective breeding. Here, I provide an overview of our current research on selective breeding in corals and discuss its potential as a mechanism for fast-tracking the evolutionary adaptation of reef-building corals to increasing temperatures. Url event:https://ifisc.uib-csic.es/en/events/seminars/exploring-selective-breeding-as-a-strategy-to-incr/

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Reminder: PhD Thesis Defense, TODAY - Monday, May 30, 2022 at 11:00
by semfis＠ifisc.uib-csic.es 30 May '22

30 May '22

PhD Thesis Defense on Monday May 30, 2022 at 11:00 Place: Zoom Seminar Title: Lagrangian transport of sinking particles. From theoretical characterization to oceanic applications Speaker: Rebeca de la Fuente, IFISC (CSIC-UIB) Abstract: PhD Thesis defense. Zoom link: To attend the online presentation, go to the following link: <a href="https://postgrau.uib.es/doctorado_defensa/fce73141dd5bddfc21ec510d96ae6681d45ff2d4/sesion_asistente">https://postgrau.uib.es/doctorado_defensa/fce73141dd5bddfc21ec510d96ae6681d45ff2d4/sesion_asistente</a> Then, after providing some data, the Doctorate School will give you access to the Zoom room to attend the presentation. Thesis advisors:&nbsp; Cristobal Lopez and Emilio Hernandez-Garcia Jury: <ul> <li>Ana M. Mancho (ICMAT, Madrid)</li> <li>Ismael Hernandez-Carrasco (SOCIB, Mallorca)</li> <li>Joao H. Bettencourt (Geofysisk institutt, Univ. of Bergen)</li> </ul> Url event:https://ifisc.uib-csic.es/en/events/seminars/lagrangian-transport-of-sinking-particles-from-the/

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PhD Thesis Defense on Monday, May 30, 2022 at 11:00
by semfis＠ifisc.uib-csic.es 27 May '22

27 May '22

PhD Thesis Defense on Monday May 30, 2022 at 11:00 Place: Zoom Seminar Title: Lagrangian transport of sinking particles. From theoretical characterization to oceanic applications Speaker: Rebeca de la Fuente, IFISC (CSIC-UIB) Abstract: PhD Thesis defense. Zoom link: To attend the online presentation, go to the following link: <a href="https://postgrau.uib.es/doctorado_defensa/fce73141dd5bddfc21ec510d96ae6681d45ff2d4/sesion_asistente">https://postgrau.uib.es/doctorado_defensa/fce73141dd5bddfc21ec510d96ae6681d45ff2d4/sesion_asistente</a> Then, after providing some data, the Doctorate School will give you access to the Zoom room to attend the presentation. Thesis advisors:&nbsp; Cristobal Lopez and Emilio Hernandez-Garcia Jury: <ul> <li>Ana M. Mancho (ICMAT, Madrid)</li> <li>Ismael Hernandez-Carrasco (SOCIB, Mallorca)</li> <li>Joao H. Bettencourt (Geofysisk institutt, Univ. of Bergen)</li> </ul> Url event:https://ifisc.uib-csic.es/en/events/seminars/lagrangian-transport-of-sinking-particles-from-the/

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Talk on Monday, May 30, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 27 May '22

27 May '22

Talk on Monday May 30, 2022 at 14:30 Place: IFISC Seminar Room Title: Exploring selective breeding as a strategy to increase thermal resilience of reef-building corals Speaker: Manuel Aranda, KAUST Abstract: Coral reefs are among the most biodiverse ecosystems and the services they provide are valued at 10 trillion USD per year. Their evolutionary success is attributed to productive symbioses between coral animals, photosynthetic endosymbionts, and beneficial bacteria which grow the living foundation of the ecosystem. However, coral symbioses are very sensitive to changes in the environment and are negatively impacted by the effects of climate change. Anomalously warm temperatures cause coral bleaching, coral starvation, and death. Warm water bleaching events have contributed to significant losses of coral cover and coral reefs recently suffered their third global die-off due to rising sea temperatures. Some regions are now experiencing several bleaching events per decade, which hinders their ability to recover from these disturbances. The future persistence of coral ree fs is dependent on evolutionary responses to warming, yet there is widespread concern that rates of warming will outpace the adaptive capacity of the coral host and lead to extinctions and ecosystem losses. These concerns have prompted calls for unconventional conservation strategies that accelerate adaptation by producing genotypes with enhanced heat tolerance through selective breeding. Here, I provide an overview of our current research on selective breeding in corals and discuss its potential as a mechanism for fast-tracking the evolutionary adaptation of reef-building corals to increasing temperatures. Url event:https://ifisc.uib-csic.es/en/events/seminars/exploring-selective-breeding-as-a-strategy-to-incr/

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IFISC Seminar on Thursday, Jun 02, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 27 May '22

27 May '22

IFISC Seminar on Thursday Jun 02, 2022 at 14:30 Place: IFISC Seminar Room Title: Yu-Shiba-Rusinov subgap excitations in hybrid superconductor/semiconductor nanowires containing quantum dots Speaker: Ramón Aguado , Instituto de Ciencia de Materiales de Madrid, CSIC Abstract: The physics of a quantum impurity in a superconductor is governed by the fermionic parity and spin of the two possible ground states, doublet or singlet, and their corresponding Yu-Shiba-Rusinov subgap excitations. After an introduction about their role in hybrid superconductor/semiconductor nanowires containing quantum dots [1], I will focus on semiconducting nanowires fully wrapped by a superconductor where an external magnetic flux gives rise to&nbsp;new regimes hitherto unexplored&nbsp;[2]. In the second part, I will discuss the physics of a superconducting qubit whose Josephson energy is governed by a fully tunable quantum dot. Specifically, a&nbsp;circuit&nbsp;QED setup&nbsp;allows to probe both its ground state and&nbsp;quasiparticle dynamics, resulting in,&nbsp;arguably, the most in-depth experimental study of a superconducting quantum impurity to date [3]. &nbsp;These results hold promise for&nbsp;realizing&nbsp;Andreev qubits with long parity lifetimes.&nbsp; [1] &nbsp;Lee et al Phys. Rev. Lett. 109, 186802 (2012); Žitko et al, Phys. Rev. B 91, 045441 (2015); &nbsp;Lee et al, Nature Nanotech., 9, 79-84 (2014). [2] Valentini et al, Science 373, 82-88 (2021); Escribano et al, Phys.&nbsp;Rev.&nbsp;B 105, 045418 (2022). [3] Bargerbos et al arXiv:2202.12754. PRX Quantum, in press. Note the unusual day of the week. The seminar is presential with parallel zoom stream:&nbsp;https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/yu-shiba-rusinov-subgap-excitations-in-hybrid-supe/

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Reminder: Talk, TODAY - Thursday, May 26, 2022 at 11:00
by semfis＠ifisc.uib-csic.es 26 May '22

26 May '22

Talk on Thursday May 26, 2022 at 11:00 Place: IFISC Seminar Room Title: Generalized diffusion in graphs/networks Speaker: Fernando Díaz Díaz, IFISC (CSIC-UIB) Abstract: Abstract: Normal and anomalous diffusion are ubiquitous in many complex systems. In this talk, I will define a time and space generalized diffusion equation (GDE), which uses fractional-time derivatives and transformed d-path Laplacian operators on graphs/networks. I will find prove that the solution of this equation covers the regimes of normal, sub- and superdiffusion as a function of the two parameters of the model. I will also extend the GDE to consider a system with temporal alternancy of normal and anomalous diffusion, which is able to sucessfully model the diffusion of proteins along a DNA chain. Finally, I will briefly comment how a subdiffusive-superdiffusive alternant regime allows the diffusive particle to explore more slowly small regions of the chain with a faster global exploration. Url event:https://ifisc.uib-csic.es/en/events/seminars/generalized-diffusion-in-graphsnetworks/

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Reminder: IFISC Seminar, TODAY - Wednesday, May 25, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 25 May '22

25 May '22

IFISC Seminar on Wednesday May 25, 2022 at 14:30 Place: Zoom Seminar Title: Understanding the origin and maintenance of biodiversity through eco-evolutionary feedbacks Speaker: Catalina Chaparro, EAWAG, ETH domain Abstract: &nbsp;I will first show how the introduction of evolutionary dynamics in the ecological resilience theory can fundamentally reshape our knowledge about resilience and tipping points in ecosystems. For example, it is traditionally established that an ecosystem tips to an alternative stable state when an environmental threshold is exceeded. On the contrary, we have shown that eco-evolutionary feedbacks can cause an ecosystem to tip without exceeding an environmental threshold. Second, I will turn to one of the most enduring problems in evolutionary biology: why sex is so widespread in nature? or in other words, why a larger number of species reproduce sexually relative to those that reproduce only asexually? These questions necessarily entail to ask how the reproductive mode influence the process whereby species arise. In the search for answers, several mechanisms that enable the maintenance of sex within populations have been identified, but little is known about the influence of the reproductive mode on diversification. Using ecological diversification as an example, I will show that there exist intrinsic differences in the diversification process associated with each reproductive mode that can explain the observed dominance of sexual reproduction. Finally, I will conclude highlighting the tight link between evolutionary mechanisms, and population and community process.&nbsp; https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/understanding-the-origin-and-maintenance-of-biodiv/

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IFISC Seminar on Wednesday, May 25, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 20 May '22

20 May '22

IFISC Seminar on Wednesday May 25, 2022 at 14:30 Place: Zoom Seminar Title: Understanding the origin and maintenance of biodiversity through eco-evolutionary feedbacks Speaker: Catalina Chaparro, EAWAG, ETH domain Abstract: &nbsp;I will first show how the introduction of evolutionary dynamics in the ecological resilience theory can fundamentally reshape our knowledge about resilience and tipping points in ecosystems. For example, it is traditionally established that an ecosystem tips to an alternative stable state when an environmental threshold is exceeded. On the contrary, we have shown that eco-evolutionary feedbacks can cause an ecosystem to tip without exceeding an environmental threshold. Second, I will turn to one of the most enduring problems in evolutionary biology: why sex is so widespread in nature? or in other words, why a larger number of species reproduce sexually relative to those that reproduce only asexually? These questions necessarily entail to ask how the reproductive mode influence the process whereby species arise. In the search for answers, several mechanisms that enable the maintenance of sex within populations have been identified, but little is known about the influence of the reproductive mode on diversification. Using ecological diversification as an example, I will show that there exist intrinsic differences in the diversification process associated with each reproductive mode that can explain the observed dominance of sexual reproduction. Finally, I will conclude highlighting the tight link between evolutionary mechanisms, and population and community process.&nbsp; https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/understanding-the-origin-and-maintenance-of-biodiv/

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Talk on Thursday, May 26, 2022 at 11:00
by semfis＠ifisc.uib-csic.es 20 May '22

20 May '22

Talk on Thursday May 26, 2022 at 11:00 Place: IFISC Seminar Room Title: Generalized diffusion in graphs/networks Speaker: Fernando Díaz Díaz, IFISC (CSIC-UIB) Abstract: Abstract: Normal and anomalous diffusion are ubiquitous in many complex systems. In this talk, I will define a time and space generalized diffusion equation (GDE), which uses fractional-time derivatives and transformed d-path Laplacian operators on graphs/networks. I will find prove that the solution of this equation covers the regimes of normal, sub- and superdiffusion as a function of the two parameters of the model. I will also extend the GDE to consider a system with temporal alternancy of normal and anomalous diffusion, which is able to sucessfully model the diffusion of proteins along a DNA chain. Finally, I will briefly comment how a subdiffusive-superdiffusive alternant regime allows the diffusive particle to explore more slowly small regions of the chain with a faster global exploration. Url event:https://ifisc.uib-csic.es/en/events/seminars/generalized-diffusion-in-graphsnetworks/

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Reminder: IFISC Seminar, TODAY - Wednesday, May 04, 2022 at 14:30
by semfis＠ifisc.uib-csic.es 04 May '22

04 May '22

IFISC Seminar on Wednesday May 04, 2022 at 14:30 Place: Zoom Seminar Title: Lucy Mensing: Forgotten Pioneer of Quantum Mechanics Speaker: Gernot Münster , Westfälische Wilhelms-Universität Münster (Germany) Abstract: In 1925 a young postdoc, Lucy Mensing, came to G&ouml;ttingen to do research with matrix mechanics, which had just been formulated. In the following years she did groundbreaking work. She successfully made the first application of the new theory to diatomic molecules. As a by-product of this work, she was the first who found that from the allowed integer or half-integer quantum numbers of angular momentum, only the integer ones apply for orbital angular momentum. Pauli, being impressed by her clear and masterful treatment of the problem, invited her to work with him on the polarizability of gases. In my contribution I will sketch the pioneering work of Mensing and give a brief account of her life and her career, which ended in 1930 after she married and started a family. https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/lucy-mensing-forgotten-pioneer-of-quantum-mechanic/

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