Results 111 to 120 of about 288,189 (359)

EPOXI Mission: Comet on a Stick [PDF]

, 2009
In this activity, students examine their concepts of a comet by designing and building a model. The goal is to have students replicate the scientific processes of observing, modeling, forming an explanation, making new observations, and revising. In this
John Risvey
core  

Solar-insolation-induced changes in the coma morphology of comet 67P/Churyumov-Gerasimenko. Optical monitoring with the Nordic Optical Telescope [PDF]

, 2017
Context. 67P/Churyumov-Gerasimenko (67P/C-G) is a short-period Jupiter family comet with an orbital period of 6.55 years. Being the target comet of ESA’s Rosetta mission, 67P/C-G has become one of the most intensively studied minor bodies of the Solar ...
A. Somero, Accomazzo, B. Zaprudin, Boehnhardt, C. Snodgrass, H. J. Lehto, Hadamcik, K. Nilsson, Knollenberg, Langevin, Merouane, Moreno, Preusker, R. Schulz, Schulz, Sekanina, Snodgrass, T. Pursimo, Vincent, Vincent, Weiler, Zaprudin   +21 more
core   +1 more source

Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions

Advanced Intelligent Systems, EarlyView.
Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley   +1 more source

Review of cometary spectra [PDF]

The spectra of comet Kohoutek, comet Bradfield, and comet Mrkos are reviewed and compared in relation to stellar spectroscopy and evolution. The possibility of observing the absorption spectrum of a comet and direct measurement of Doppler shifts due to ...
Herbig, G. H.
core   +1 more source

Photometric Study of the C/2014 Q2 (Lovejoy) Comet Plasma Tails

, 2018
Observations of C/2014 Q2 (Lovejoy) comet were carried out on 7th February, 2015, at the observation station in Mayaki village (No. 583 -- Odesa-Mayaki observatory).
Gorbanev, Yury M., Kashuba, Volodymyr, Kleschonok, Valery V., Luk'yanyk, Igor V.   +3 more
core   +1 more source

The Development and Validation of the Smell‐Qx Questionnaire, Based on a Systematic Review of the Literature and the COMET Initiative on the Development of Core Outcome Sets for Clinical Trials in Olfactory Disorders

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Olfactory dysfunction affects up to 22% of the population. Accurate assessment is vital for diagnosis and tracking outcomes, often using patient‐reported outcome measures (PROMs). Aims We aimed to develop and validate a novel questionnaire for assessing olfactory and gustatory dysfunction.
Matt Lechner, Alexander Fjaeldstad, Umar Rehman, Jacklyn Liu, David Boniface, Jim Boardman, Duncan Boak, Aytug Altundag, Johannes Frasnelli, Simon Gane, Eric Holbrook, Julien Hsieh, Caroline Huart, Iordanis Konstantinidis, Basile N. Landis, Valerie J. Lund, Alberto Macchi, Eri Mori, Christian Mueller, Joaquim Mullol, Simona Negoias, Zara M. Patel, Jayant M. Pinto, Sophia Poletti, Vijay Ramakrishnan, Philippe Rombaux, Jan Vodicka, Antje Welge‐Luessen, Katherine L. Whitcroft, Carol Yan, Carl Philpott, Thomas Hummel   +31 more
wiley   +1 more source

Measuring DNA modifications with the comet assay: a compendium of protocols

Nature Protocols, 2023
A. Collins, P. Møller, G. Gajski, Sona Vodenkova, Abdulhadi Abdulwahed, Diana Anderson, E. Bankoglu, S. Bonassi, É. Boutet-Robinet, G. Brunborg, Christy Chao, M. Cooke, C. Costa, S. Costa, A. Dhawan, J. de Lapuente, C. Bo’, Julien Dubus, M. Dusinska, S. Duthie, N. Yamani, B. Engelward, I. Gaivão, L. Giovannelli, R. Godschalk, S. Guilherme, K. Gutzkow, K. Habas, Alba Hernández, Ó. Herrero, M. Isidori, A. Jha, S. Knasmüller, I. Kooter, G. Koppen, M. Kruszewski, C. Ladeira, B. Laffon, M. Larramendy, L. Hégarat, A. Lewies, A. Lewińska, G. E. Liwszyc, A. D. de Ceráin, M. Manjanatha, R. Marcos, M. Milić, V. M. de Andrade, M. Moretti, D. Muruzabal, M. Novak, Rui Oliveira, A. Olsen, Norah A Owiti, Mário Pacheco, A. Pandey, S. Pfuhler, B. Pourrut, K. Reisinger, E. Rojas, E. Rundén-Pran, J. Sanz-Serrano, Sergey Shaposhnikov, V. Sipinen, K. Smeets, H. Stopper, J. Teixeira, V. Valdiglesias, M. Valverde, Frédérique van Acker, F. V. van Schooten, Marie Z. Vasquez, Johannes F. Wentzel, M. Wnuk, Annelies Wouters, B. Žegura, T. Zikmund, S. Langie, A. Azqueta   +78 more
semanticscholar   +1 more source

Integrated Chemoenzymatic Synthesis of the mRNA Vaccine Building Block N1‐Methylpseudouridine Triphosphate

Angewandte Chemie International Edition, Accepted Article.
Pseudouridine‐5’‐triphosphate (ΨTP) and the N1‐methylated derivative (m1ΨTP) are critical monomer building blocks of the currently used mRNA vaccines, yet efficient methods of their synthesis from readily accessible substrates remain underdeveloped. We herein report notably atom‐economic and high‐yielding biocatalytic route toward ΨTP (83% yield) and ...
Martin Pfeiffer, Leo Krammer, Johannes Zöhrer, Rolf Breinbauer, Bernd Nidetzky   +4 more
wiley   +1 more source

Organics in comet 67P – a first comparative analysis of mass spectra from ROSINA–DFMS, COSAC and Ptolemy

, 2017
The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to the surface of the comet.
K. Altwegg, H. Balsiger, J. Berthelier, A. Bieler, U. Calmonte, S. Fuselier, F. Goesmann, S. Gasc, T. Gombosi, L. L. Roy, J. Keyser, A. Morse, M. Rubin, M. Schuhmann, Matthew Taylor, C. Tzou, I. Wright   +16 more
semanticscholar   +1 more source

Evaluating In Vitro DNA Damage Using Comet Assay.

Journal of Visualized Experiments, 2017
DNA damage is a common phenomenon for each cell during its lifespan, and is defined as an alteration of the chemical structure of genomic DNA. Cancer therapies, such as radio- and chemotherapy, introduce enormous amount of additional DNA damage, leading ...
Yanxin Lu, Yang Liu, Chunzhang Yang
semanticscholar   +1 more source