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As drones and autonomous cars become more widespread it is becoming increasingly important that robots can operate safely under realistic conditions. The noisy information fed into real systems means that robots must use estimates of the…

Robotics · Computer Science 2017-06-01 Brian Axelrod , Leslie Pack Kaelbling , Tomás Lozano-Pérez

In this paper, we provide guidance on how standard safety analyses and reporting of clinical trial safety data may need to be modified, given the potential impact of the COVID-19 pandemic. The impact could include missed visits, alternative…

Other Quantitative Biology · Quantitative Biology 2020-06-11 Mary Nilsson , Brenda Crowe , Greg Anglin , Greg Ball , Melvin Munsaka , Seta Shahin , Wei Wang

In this paper we analyse the reasons which lead to a fuzzy spacetime approach. We then consider an experimental consequence, viz., a modified dispersion relation, which could be detected in ultra high energy cosmic rays, by for example…

General Physics · Physics 2007-05-23 B. G. Sidharth

Nowadays, the calculation of the Galactic Cosmic Rays diffusion coefficient with direct microscopic numerical simulations is a widespread approach. In this work, we investigated the numerical limits for such calculations and demonstrated…

Instrumentation and Methods for Astrophysics · Physics 2026-05-14 Vladimir Yurovsky , Ilya Kudryashov

For near-Sun missions, the spacecraft approaches very close to the Sun and space environmental effects become relevant. Strong restrictions on how much close it can get derive from the maximum temperature that the used materials can stand,…

Space Physics · Physics 2017-10-25 Elena Ancona , Roman Ya. Kezerashvili

These lectures address the effects of Cosmic Rays over macro-instabilities which develop in the interstellar medium and the micro-instabilities the particles are able to trigger themselves. The lectures are centered on the derivation of…

High Energy Astrophysical Phenomena · Physics 2023-12-29 Alexandre Marcowith

The luminosity distance-redshift relation is one of the fundamental tools of modern cosmology. We compute the luminosity distance-redshift relation in a perturbed flat matter-dominated Universe, taking into account the presence of…

Astrophysics · Physics 2009-11-10 Enrico Barausse , Sabino Matarrese , Antonio Riotto

This paper is a continuation of our previous analysis (i.e. Turyshev 2002a, 2002b) of the relativistic stellar aberration requirements for the Space Interferometry Mission (SIM). Here we have considered a problem of how the expected…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Slava G. Turyshev

This article will summarize the workshop proceedings of a workshop conducted at the University of Missouri that addressed the use of multi-omics fused with geospatial information to assess and improve the precision and environmental…

New concept for reducing dose radiation exposure, which helps to decrease the duration and cost of deep space human missions is introduced. This concept can be efficiently realized, using modern materials, such as carbon nanotube…

Space Physics · Physics 2013-05-15 Dmitry Zhuridov

Microscopic, or short-wavelength, instabilities are known for drastic reduction of the beam quality and strong amplification of the noise in a beam. Space charge and coherent synchrotron radiation are known to be the leading causes for such…

Accelerator Physics · Physics 2023-06-14 Vladimir Litvinenko , Yichao Jing , Jun Ma , Irina Petrushina , Kai Shih , Gang Wang

The paper presents many facets of medical imaging investigations radiological risks. The total volume of prescribed medical investigations proves a serious lack in monitoring and tracking of the cumulative radiation doses in many health…

Medical Physics · Physics 2015-11-09 Lidia Dobrescu , Gheorghe-Cristian Rădulescu

The stellar initial mass function and the stellar lifetimes are basic ingredients of chemical evolution models, for which different recipes can be found in the literature. In this paper, we quantify the effects on chemical evolution studies…

Astrophysics · Physics 2007-05-23 Donatella Romano , Cristina Chiappini , Francesca Matteucci , Monica Tosi

Cosmic rays are nowadays a crucial tool to study the astrophysics of extreme objects in the Universe, the cosmic environmental plasma (both Galactic and extra-galactic), the physics of nuclear interactions or the properties of elementary…

High Energy Astrophysical Phenomena · Physics 2022-02-16 Pedro de la Torre Luque

Conducting levitated mechanical experiments in extreme conditions has long been the aim of researchers, as it allows for the investigation of new fundamental physics phenomena. One of the great frontiers has been sending these experiments…

In order to attract and retain excellent researchers and diverse individuals in astrophysics, we recommend action be taken in several key areas impacting young scientists: (1) Maintain balance between large collaborations and individual…

Instrumentation and Methods for Astrophysics · Physics 2009-05-14 N. L. Zakamska , A. E. Schulz , K. Heng , M. Juric , B. Kocsis , M. Kuhlen , R. Mandelbaum , J. L. Mitchell , M. Pan , D. H. Rudd , G. van de Ven , Z. Zheng

Observations have revealed that the MW, Andromeda, Centaurus A (and potentially other galaxies) host spatially thin and kinematically coherent planes of satellites. Such structures are highly improbable within the standard LCDM cosmological…

Astrophysics of Galaxies · Physics 2025-06-19 Prem Kumar , Marcel S. Pawlowski , Kosuke Jamie Kanehisa , Pengfei Li , Mariana P. Júlio , Salvatore Taibi

Many drugs used therapeutically or recreationally induce tolerance: the effect of the substance decreases with repeated use. This phenomenon may reduce the efficacy of the substance unless dosage is increased beyond what is healthy for the…

Dynamical Systems · Mathematics 2024-03-19 Golrokh Nouri , Paul Tupper

We investigate obstacles of superluminal "warp drive" travels from interactions with interstellar matter and from curvature effects. The effect of collision of interstellar dust particles and photons with the spacecraft will all lead to a…

General Relativity and Quantum Cosmology · Physics 2022-10-19 Siyu Bian , Yi Wang , Zun Wang , Mian Zhu

A relativistic spacecraft of the type envisioned by the Breakthrough Starshot initiative will inevitably get charged through collisions with interstellar particles and UV photons. Interstellar magnetic fields would, therefore, deflect the…

Space Physics · Physics 2017-10-18 Thiem Hoang , Abraham Loeb
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