Results 131 to 140 of about 8,464 (293)

Compromised DNA replication in gut cells underlies sensitivity to genotoxic stress in the tardigrade Hypsibius exemplaris

The FEBS Journal, EarlyView.
DNA damage in the tardigrade Hypsibius exemplaris elicits distinct cellular outcomes depending on replication status. While non‐replicating cells tolerate genotoxic stress, constitutively replicating cells undergo irreversible replication failure upon DNA damage, leading to loss of tissue homeostasis, fat depletion, sterility, and organismal death ...
Gonzalo Quiroga‐Artigas, Pauline Fontanié, Benjamin Lacroix, Maria Dolores Molina, María Moriel‐Carretero   +4 more
wiley   +1 more source

Cassini detection of Enceladus' cold water-group plume ionosphere

, 2009
This study reports direct detection by the Cassini plasma spectrometer of freshly-produced water-group ions (O+, OH+, H2O+, H3O+) and heavier water dimer ions (HxO(2))(+) very close to Enceladus where the plasma begins to emerge from the plume.
Crary, FJ, Paty, CS, Thomsen, MF, Johnson, RE, Coates, AJ, Jones, GH, Young, DT, Wilson, RJ, Tokar, RL   +8 more
core  

Analysing Resilience Indicator Traits in Austrian Fleckvieh, Brown Swiss and Holstein‐Friesian Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Recent studies suggest that variations in milk yield during lactation can serve as a metric for assessing individual resilience, with minimum fluctuations reflecting greater resilience in cows. With automatic milking systems, multiple records can be obtained from many cows on a daily basis. Given that animals are continually exposed to a range
M. Agyiri, R. Onzima, A. Costa, B. Fuerst‐Waltl, F. Steininger, C. Egger‐Danner, G. Mészáros, J. Sölkner   +7 more
wiley   +1 more source

Observations of solar wind ion charge exchange in the comet Halley coma

, 1991
Giotto Ion Mass Spectrometer/High Energy Range Spectrometer (IMS/HERS) observations of solar wind ions show charge exchange effects and solar wind compositional changes in the coma of comet Halley.
Fuselier, S. A., Balsiger, H., Ip, W.-H., Goldstein, B. E., Neugebauer, M., Shelley, E. G., Reme, H., Goldstein, R.   +7 more
core  

The dynamical origins of the dark comets and a proposed evolutionary track

Icarus
17 pages, 7 figures, 12 supplementary figures & pages.
Aster G. Taylor, Jordan K. Steckloff, Darryl Z. Seligman, Davide Farnocchia, Luke Dones, David Vokrouhlický, David Nesvorný, Marco Micheli   +7 more
openaire   +2 more sources

3SD: Rotational symmetry single‐shot denoising in fluorescence microscopy

Journal of Microscopy, EarlyView.
Abstract Image noise is a fundamental problem in fluorescence microscopy analysis, especially in live cell imaging applications where the number of detected photons is limited due to low power of excitation lasers to prevent phototoxicity during extended imaging experiments.
Tijmen H. de Wolf, Pleun Engbers, Justine Perrin, Julie Nonnekens, Ihor Smal   +4 more
wiley   +1 more source

The hydrogen coma of Comet Halley before perihelion: Preliminary observations with dynamics Explorer 1

, 1986
The hydrogen coma of Comet Halley has been observed in resonantly scattered solar Lyman-alpha radiation during the period 1-29 January 1986 as the comet approached perihelion.
Frank, L. A., Rairden, R. L., Dvorsky, M. R., Craven, J. D.   +3 more
core  

Dynamic autonomous intelligent control of an asteroid lander

, 2010
One of the future flagship missions of the European Space Agency (ESA) is the asteroid sample return mission Marco-Polo. Although there have been a number of past missions to asteroids, a sample has never been successfully returned.
Allouis, E., McInnes, C., Brown, B., Brown, Blair, McInnes, C.R.   +4 more
core   +1 more source

Digital range of motion analysis is sensitive to subjective steps in joint model construction

Journal of Anatomy, EarlyView.
A systematic sensitivity analysis of a six degree‐of‐freedom range of motion (ROM) analysis workflow was conducted to evaluate how variation in the subjective steps of the reference pose assembly affects the determined viable poses in the ankle and tarsometatarsophalangeal III joints of Guinea fowl (Numida meleagris).
R. J. Lowes, A. Jannel, B. W. Griffin, T. L. Prescott, P. L. Falkingham   +4 more
wiley   +1 more source

Multi-criteria comparison among several mitigation strategies for dangerous near Earth objects

, 2009
In this paper a comparative assessment of the effectiveness of different deviation methods for Near Earth Objects is presented. Specifically, solar collector, nuclear interceptor, kinetic impactor, low-thrust propulsion, mass driver and gravity tug are ...
Vasile, M., Colombo, Camilla, Vasile, Massimiliano, Sanchez, J. P., Sanchez, Pau, Radice, G., Sanchez, Joan Pau, Colombo, C., Sanchez, J.P., Radice, Gianmarco, Sanchez, P.   +10 more
core   +1 more source