Date
Title: What makes human special? A molecular approach
Please welcome Prof. Pääbo, our Adjunct Professor, and join his very first faculty talk at OIST!
Yasha, Akiko, and the CPR team
Date
Dr. Chris Bowman, Reader, University of York. Language: English (no interpretation). Target audience: students and researchers from related fields. Freely accessible to all OIST members and guests without registration.
Date
Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.
Language: English
Date
Abstract:
This talk will present the result of a joint work with Mathav Murugan(University of British Columbia) that, for a symmetric diffusion on a complete locally compact separable metric space, two-sided sub-Gaussian heat kernel bounds imply the singularity of the energy measures with respect to the reference measure.
For self-similar (scale-invariant) diffusions on self-similar fractals, the singularity of the energy measures is known to hold in many cases by Kusuoka (1989, 1993), Ben-Bassat, Strichartz and Teplyaev (1999),
Hino (2005), and Hino and Nakahara (2006), but these results heavily relied on the self-similarity of the space.
It was conjectured, and had remained open for the last two decades to prove, that the singularity of the energy measures should follow, without assuming the self-similarity, just from two-sided sub-Gaussian
heat kernel bounds of the same form as those for diffusions on typical self-similar fractals. The main result of this talk answers this conjecture affirmatively.
The first half of the talk will be devoted to a brief introduction to self-similar diffusions (and their associated Dirichlet forms) on self-similar fractals and to sub-Gaussian heat kernel bounds for symmetric diffusions, so that the talk will (hopefully) be accessible even to those without prior knowledge about diffusions on fractals.
Date
Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.
Language: English
Date
Quantum Gravity group meeting.
Speakers: Jonas Sonnenschein and Mirian Tsulaia.
Title: "N=2 SUSY Quantum Mechanics and spectra of Non-SUSY Hamiltonians (part 2)"
Date
Quantum Gravity group meeting.
Speakers: Jonas Sonnenschein and Mirian Tsulaia.
Title: "N=2 SUSY Quantum Mechanics and spectra of Non-SUSY Hamiltonians (part 1)"
Date
Kay Jin Lim, Nanyang Technological University
Title: Descent Algebra of Type A
Date
Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.
Language: English
Date
The seminar aims to initiate interactions between international and Japanese researchers and students in the field of Ecology and Evolution. The 8th event is presented by Ryosuke Nakadai from National Institute for Environmental Studies.
Please register from the next link: https://sites.google.com/view/jee-english-seminar
Title:
Individual-based temporal beta-diversity: Individual turnover and compositional shift in a community
Timeline
15:00~15:30: seminar
15:30~16:00: questions and discussion
16:00~: mixer
Abstract:
As increasing the necessity to assess the influences of global climate change and anthropogenic disturbances on biodiversity, the concept of beta-diversity has been extended to a temporal context and has been intensively studied in recent years. In studies of temporal beta-diversity, methodologies used in spatial beta-diversity have often been used simply. However, temporal beta-diversity often includes "the same individual" between two communities implicitly, which has not been the case with spatial communities, so it is necessary to consider the effects of individual turnover and persistence for quantifying temporal beta-diversity. I focused on both individual identity and the persistence of individuals within a temporal beta-diversity framework and developed some novel indices. In my presentation, I will explain the novel indices which I recently developed and the concepts behind them, showing examples of analysis. I would also like to discuss the prospects for community assemblages through both time and individual identity.