■Date■

Monday, December 20, 14:00-15:00

CFF unit is please to invite you to the seminar!

Dr. David Beltran, University of Wisconsin – Madison Title: Endpoint Sobolev regularity of the fractional maximal function Abstract: Abstract: I will report some of the recent progress regarding the boundedness and continuity of the map $f \mapsto |\nabla M_\beta f|$ from the endpoint space $W^{1,1}(\mathbb{R}^d)$ to $L^{d/(d-\beta)}(\mathbb{R}^d)$, where $$M_\beta$ denotes the fractional version of either the centered or uncentered Hardy--Littlewood maximal function. After contributions by several authors, the problem is now totally solved in an affirmative way. I will focus on my contributions, which correspond to the radial case (in joint work with J. Madrid), and also to the general case for the continuity of the map (in joint work with C. González-Riquelme, J. Madrid and J. Weigt). Please click here to register *After registering, you will receive a confirmation email containing information about joining the meeting.

Please click here to register
*After registering, you will receive a confirmation email containing information about joining the meeting.

TQM unit is pleased to invite you to the seminar.

The seminar aims to initiate interactions between international and Japanese researchers and students in the field of Ecology and Evolution.
The 4th event is specially presented by three great speakers.

Elio Borghezan (Kyoto University) from 3pm -
Iki Murase (University of the Ryukyus) from 4pm
Marta Quitián (Tokyo Metropolitan University) from 5pm

on Dec. 13th(Fri). 

Please join us if you have time.
https://sites.google.com/view/jee-english-seminar

We’ll meet at L4-E1 or via zoom.

You can get the zoom link after registering from the following link. 
https://docs.google.com/forms/d/e/1FAIpQLSf67u80HNik6YePCyHYNENst5IVEc2Jq4xpkXbWwrU-y1W5HQ/viewform

*JEEES is created by Jamie M Kass (Economo Unit) and me to cultivate interactions between international and domestic researchers/students in ecology/evolution in Japan.

Our speaker will be Shaun Gallagher (PhD, Hon D.Phil) on Enactive solutions to the integration problem in psychiatry. We will be meeting on Monday, December 6, 2021 at 9:30 am, Japan time (GMT +9).

Speaker: Tianyuan Xu, University of Colorado at Boulder

Title: On Kazhdan–Lusztig cells of a-value 2

Notes from Underground: vocal communication in a eusocial rodent

Naked mole-rats are exceptionally long-lived (reported lifespans > 30 years), highly resistant to cancer and low oxygen conditions and live in colonies organized to support a single breeding female, queen. This type of social behavior is rare among mammals, although commonly found in the social insects: bees, wasps, and ants. Yet how naked mole-rats organize and maintain their elaborate social groups is largely unknown. Recent work from our group identified a critical role for vocal communication in naked mole-rats societies.  Using machine learning techniques, we developed methods to automatically classify and analyze features of one vocalization type, the soft chirp, a greeting call used by naked mole-rats when they encounter one another in their subterranean habitat. We demonstrated that soft chirps encode information about individual and colony identity, suggesting the possibility of colony specific dialects. In a series of behavioral tests, we found that vocal responses were enhanced to home colony vs. foreign colony audio playbacks and to artificially generated colony-specific dialects. We further demonstrated that these dialects can be learned, as pups that were cross-fostered early in life acquired the dialect of their adoptive colonies. Colony specificity of vocal dialects is controlled in part by the presence of the queen: when the queen was lost the vocal cohesiveness of the colony dialect disintegrated. In this lecture I will highlight some of the remarkable lessons we can learn from the naked mole-rat including how vocal communication emerges as an evolutionary mechanism for enhanced cooperation.

TQM unit is pleased to invite you to the seminar!