It’s easy to fool yourself: Case studies on identifying bias and confounding in bio-medical datasets

Posted by klaurent Harvard

Kavli Affiliate: Michael Brenner | First 5 Authors: Subhashini Venugopalan, Arunachalam Narayanaswamy, Samuel Yang, Anton Geraschenko, Scott Lipnick | Summary: Confounding variables are a well known source of nuisance in biomedical studies. They present an even greater challenge when we combine them with black-box machine learning techniques that operate on raw data. This work presents […]


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A Dynamical Model of Oncotripsy by Mechanical Cell Fatigue: Selective Cancer Cell Ablation by Low-Intensity Pulsed Ultrasound (LIPUS)

Posted by klaurent Caltech

Kavli Affiliate: M. Gharib | First 5 Authors: E. F. Schibber, D. R. Mittelstein, M. Gharib, M. G. Shapiro, P. P. Lee | Summary: The method of oncotripsy, first proposed in [S. Heyden and M. Ortiz (2016). Oncotripsy: Targeting cancer cells selectively via resonant harmonic excitation. Journal of the Mechanics and Physics of Solids, 92:164-175], […]


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The Scenario Culture

Posted by klaurent Cornell

Kavli Affiliate: Daniel Ralph | First 5 Authors: Edward Wheatcroft, Henry Wynn, Chris J. Dent, Jim Q. Smith, Claire L. Copeland | Summary: Scenario Analysis is a risk assessment tool that aims to evaluate the impact of a small number of distinct plausible future scenarios. In this paper, we provide an overview of important aspects […]


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Effect of Rough Walls on Transport in Mesoscopic $^3$He Films

Posted by klaurent Cornell

Kavli Affiliate: Jeevak M. Parpia | First 5 Authors: Priya Sharma, Antonio Corcoles, R. G. Bennett, Jeevak M. Parpia, Brian Cowan | Summary: The interplay of bulk and boundary scattering is explored in a regime where quantum size effects modify mesoscopic transport in a degenerate Fermi liquid film of $^3$He on a rough surface. We […]


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Large depth-of-field tracking of colloidal spheres in holographic microscopy by modeling the objective lens

Posted by klaurent Harvard

Kavli Affiliate: Vinothan Manoharan | First 5 Authors: Brian Leahy, Ronald Alexander, Caroline Martin, Solomon Barkley, Vinothan Manoharan | Summary: Holographic microscopy has developed into a powerful tool for 3D particle tracking, yielding nanometer-scale precision at high frame rates. However, current particle tracking algorithms ignore the effect of the microscope objective on the formation of […]


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Observation of spin-momentum locked surface states in amorphous Bi$_{2}$Se$_{3}$

Posted by dbos Berkeley

Kavli Affiliate: Alessandra Lanzara | First 5 Authors: , , , , | Summary: Crystalline symmetries have played a central role in the identification of topological materials. The use of symmetry indicators and band representations have enabled a classification scheme for crystalline topological materials, leading to large scale topological materials discovery. In this work we […]


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Modification of electron-phonon coupling by micromachining and suspension

Posted by klaurent Caltech

Kavli Affiliate: Michael Roukes | First 5 Authors: Olli-Pentti Saira, Matthew H. Matheny, Libin Wang, Jukka Pekola, Michael Roukes | Summary: Weak electron-phonon interaction in metals at low temperatures forms the basis of operation for cryogenic hot-electron bolometers and calorimeters. Standard power laws, describing the heat flow in the majority of experiments, have been identified […]


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Elastic properties of hidden order in URu$_{text2}$Si$_{text2}$ are reproduced by a staggered nematic

Posted by klaurent Cornell

Kavli Affiliate: Brad Ramshaw | First 5 Authors: Jaron Kent-Dobias, Michael Matty, Brad Ramshaw, , | Summary: We develop a phenomenological mean field theory describing the hidden order phase in URu$_{text2}$Si$_{text2}$ as a nematic of the $text B_{text{1g}}$ representation staggered along the $c$-axis. Several experimental features are reproduced by this theory: the topology of the […]


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Nonequilibrium thermodynamics of erasure with superconducting flux logic

Posted by klaurent Caltech

Kavli Affiliate: Michael L. Roukes | First 5 Authors: Olli-Pentti Saira, Matthew H. Matheny, Raj Katti, Warren Fon, Gregory Wimsatt | Summary: We implement a thermal-fluctuation driven logical bit reset on a superconducting flux logic cell. We show that the logical state of the system can be continuously monitored with only a small perturbation to […]


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