Wed 23 Apr 17:00: bla bla
Abstract not available
- Speaker: Thomas hartigan
- Wednesday 23 April 2025, 17:00-17:45
- Venue: Lecture Theatre 2, Computer Laboratory, William Gates Building.
- Series: Foundation AI; organiser: Pietro Lio.
Fri 09 May 14:00: Title to be confirmed
Abstract not available
- Speaker: Peter Bühlmann (ETH Zurich)
- Friday 09 May 2025, 14:00-15:00
- Venue: MR12, Centre for Mathematical Sciences.
- Series: Statistics; organiser: Qingyuan Zhao.
Fri 02 May 14:00: Improved performance guarantees for Tukey’s median
Is there a natural way to order data in dimension greater than one? The approach based on the notion of half-space depth, often associated with the name of John Tukey, is among the most popular. Tukey’s depth has found applications in robust statistics, the study of elections and social choice, and graph theory. We will give an introduction to the topic, with an emphasis on robust statistics, describe some remaining open questions as well as our recent progress towards their solutions. In will particular, we discuss performance guarantees for Tukey’s median (and other affine-equivariant estimators) that depend on the “intrinsic” dimension of the problem expressed via the effective rank of the covariance matrix, and their connections to the size of empirical depth level sets.
This talk is based on the joint work with Yinan Shen.
- Speaker: Stanislav Minsker (University of Southern California)
- Friday 02 May 2025, 14:00-15:00
- Venue: MR12, Centre for Mathematical Sciences.
- Series: Statistics; organiser: Qingyuan Zhao.
Mon 28 Apr 14:00: Infalling charges and electromagnetic radiation
The Vlasov—Maxwell system describes the interaction of a large collection of collisionless charged particles. I will discuss a well posedness theorem for a ``scattering problem’’ for this system, in which the behaviour is prescribed in the infinite past. An arbitrarily prescribed configuration of particles fall in from infinity, with the condition of no incoming electromagnetic radiation imposed for the Maxwell field. The proof is based on our previous work on the Vlasov—Poisson system. I will then discuss properties of the radiation emitted by such a configuration. This is joint work with Volker Schlue (Melbourne).
- Speaker: Martin Taylor (Imperial)
- Monday 28 April 2025, 14:00-15:00
- Venue: MR13.
- Series: Partial Differential Equations seminar; organiser: Dr Greg Taujanskas.
Thu 12 Mar 14:00: Title to be confirmed Host - Marco Geymonat
Abstract not available
Host - Marco Geymonat
- Speaker: Dr Simonetta Piatti from Centre de Recherche en Biologie Cellulaire de Montpellier
- Thursday 12 March 2026, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 29 Jan 14:00: Title to be confirmed Host - Aylwyn Scally
Abstract not available
Host - Aylwyn Scally
- Speaker: Dr James DiFrisco from The Francis Crick Institute, London
- Thursday 29 January 2026, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 22 Jan 14:00: Title to be confirmed Host - Lin Wang
Abstract not available
Host - Lin Wang
- Speaker: Professor Aleksandra Walczak from Laboratoire de physique, l’École Normale Supérieure, Paris
- Thursday 22 January 2026, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 27 Nov 14:00: Title to be confirmed Host - Charlotte Houldcroft
Abstract not available
Host - Charlotte Houldcroft
- Speaker: Dr Katrina Lythgoe from Department of Biology, University of Oxford
- Thursday 27 November 2025, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 20 Nov 14:00: Title to be confirmed Host - Ritwick Sawarkar
Abstract not available
Host - Ritwick Sawarkar
- Speaker: Dr Germano Cecere from Department of Developmental and Stem Cell Biology, Institut Pasteur, Paris
- Thursday 20 November 2025, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 16 Oct 14:00: Title to be confirmed Host – Antoine Hocher
Abstract not available
Host – Antoine Hocher
- Speaker: Dr Tom Williams from Bristol Palaeobiology Research Group, University of Bristol
- Thursday 16 October 2025, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 06 Nov 14:00: Title to be confirmed Host – Kate Baker
Abstract not available
Host – Kate Baker
- Speaker: Professor Benoit Marteyn from Institute of Molecular and Cellular Biology (IBMC), University of Strasbourg
- Thursday 06 November 2025, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Thu 30 Apr 14:00: Title to be confirmed Host - Ben Steventon
Abstract not available
Host - Ben Steventon
- Speaker: Professor Rebecca Heald, Department of Molecular and Cellular Biology, University of California, Berkeley
- Thursday 30 April 2026, 14:00-15:00
- Venue: Biffen Lecture theatre tbc and Zoom.
- Series: Genetics Seminar ; organiser: Caroline Newnham.
Wed 28 May 16:00: Title to be confirmed
Abstract not available
- Speaker: Laura Monk (Bristol)
- Wednesday 28 May 2025, 16:00-17:00
- Venue: CMS, MR15.
- Series: Differential Geometry and Topology Seminar; organiser: Oscar Randal-Williams.
A Large Conjugated Rigid Dimer Acceptor Enables 20.19% Efficiency in Organic Solar Cells
DOI: 10.1039/D5EE00878F, PaperWendi Shi, Qiansai Han, Wenkai Zhao, Ruohan Wang, Longyu Li, Guangkun Song, Xin Chen, Guankui Long, Zhaoyang Yao, Yan Lu, Chenxi Li, Xiangjian Wan, Yongsheng Chen
Non-fullerene acceptors with a large conjugated rigid skeleton are conducive to promoting low disorder and reducing non-radiative recombination loss (ΔEnr), thereby improving open voltage(Voc) in organic solar cells (OSCs). However,...
The content of this RSS Feed (c) The Royal Society of Chemistry
Dual strain regulated RhNiAu trimetallene for efficient plasmonic-promoted acidic nitrate electroreduction
DOI: 10.1039/D5EE00788G, PaperWei Zhong, Qing-Ling Hong, Qiu-Yu Du, Bao Yu Xia, Xuan Ai, Fumin Li, Yu Chen
Nitrate electroreduction reaction (NO3ERR) under acidic conditions provides a green and sustainable pathway for acidic industrial wastewater treatment and ammonia (NH3) synthesis. As a typical multi-electron transfer and proton-coupled reaction,...
The content of this RSS Feed (c) The Royal Society of Chemistry
Tailored glycol-functionalized mixed-conductive polythiophene coatings enable stable zinc anodes
DOI: 10.1039/D5EE00584A, PaperHui Zhang, Tianyu Qiu, Jinlin Yang, Yifei Ma, Chenfeng Ding, Luis K. Ono, Jinfeng Zeng, Wanli Liu, Shu-Nan Zhao, Chao Zou, Qing Jiang, Yabing Qi, Xinlong Tian, Hu Chen
Polymer protective layers possessing high flexibility and compatibility with substrates show potentials to stabilize zinc anodes. However, inferior electronic or ionic conductivity, as well as limited structural tunability restrain electrochemical...
The content of this RSS Feed (c) The Royal Society of Chemistry
Thu 01 May 11:30: Interaction of Mechanical Ventilation and Natural Convection
Abstract not available
- Speaker: Dan Toy, IEEF
- Thursday 01 May 2025, 11:30-12:30
- Venue: Open Plan Area, Institute for Energy and Environmental Flows, Madingley Rise CB3 0EZ.
- Series: Institute for Energy and Environmental Flows (IEEF); organiser: Catherine Pearson.
Multi-H-Bonded Self-Assembled Superstructures for Ultrahigh-Capacity and Ultralong-Life All-Organic Ammonium-Ion Batteries
DOI: 10.1039/D5EE00823A, Paper Open Access   This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Pingxuan Liu, Ziyang Song, Qi Huang, Ling Miao, Yaokang Lv, Lihua Gan, Mingxian Liu
All-organic ammonium-ion batteries (AOBs) with light organic electrodes and small-hydrated-sized NH4+ charge carriers are up-and-coming for next-generation energy storage. However, the low NH4+-accessible redox-active motifs of organics with high coordination...
The content of this RSS Feed (c) The Royal Society of Chemistry
Regulating Charge Distribution to Achieve High‐Performance n‐Type Single‐Component Organic Neuromorphic Phototransistors
A torsion-polarization synergy strategy utilizing cyano-functionalized thieno[3,2-b]thiophene-3,6-dicarbonitrile (2CNTT) achieves intramolecular decoupling and intermolecular polarization, optimizing exciton dissociation and charge transport. The single-component phototransistor based on 2CNTT exhibits ultralow energy consumption, high photoresponse, and synaptic functionalities, providing an efficient design strategy for multifunctional optoelectronic devices and neuromorphic applications.
Abstract
Organic optoelectronic devices are advancing toward miniaturization and integration, demanding high performance, low energy consumption, and simplified manufacturing. The development of single-component phototransistors is still in its early stages, particularly for high-performance n-type polymer semiconductors. Here, thieno[3,2-b]thiophene-3,6-dicarbonitrile (2CNTT) is developed and a cyano-mediated torsion-polarization synergy strategy is proposed to construct conjugated polymers via direct (hetero)arylation polycondensation. This structural modification promotes intramolecular decoupling and enhances intermolecular interactions, enabling intra-/interchain charge distribution to be regulated. N-type copolymers based on 2CNTT exhibited broad visible-light absorption range and small exciton binding energy, capable of stable exciton generation and stepwise dissociation. The PFIID2NTT-based single-component phototransistor showed stable unipolar electron mobility and strong photoresponse with light-current/dark-current ratio as high as 9.02 × 104, and a paired-pulse facilitation index over 236% under visible light. The devices also operate at an ultra-low energy consumption (13.23 aJ), mimicking neural synapse behavior and enabling long-term memory functionality. The strategy optimizes charge distribution and exciton utilization in n-type polymer semiconductors, presenting a new paradigm for developing multifunctional organic optoelectronics.