Results 101 to 110 of about 2,437 (254)

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

open access: yesThe 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   +4 more
wiley   +1 more source

Dust Production Rates in Jupiter-family Comets: A Two Year Study with ATLAS Photometry

open access: yesThe Planetary Science Journal
Jupiter-family comets (JFCs) exhibit a wide range of activity levels and mass loss over their orbits. We analyzed high-cadence observations of 42 active JFCs with the wide-field Asteroid Terrestrial-impact Last Alert System (ATLAS) in 2020–
A. Fraser Gillan   +6 more
doaj   +1 more source

The immobilization of GOX in slides for comet sssay provides a useful tool for investigation of the efficiency of the cellular DNA-integrity protecting system of the target cells.

open access: yesFrontiers in Genetics, 2015
Various modifications of Comet Assay are widely used for efficiency analysis of the cellular DNA-integrity protecting system (Azqueta et al., 2014). The nucleoids of eukaryotic cells immobilized in agarose gel and lyzed were used as a substrate for DNA ...
Nikolay Petrovich Sirota
doaj   +1 more source

A Search of Reactivated Comets [PDF]

open access: yes, 2017
Dormant or near-dormant short-period comets can unexpectedly regain the ability to eject dust. In many known cases, the resurrection is short-lived and lasts less than one orbit.
Ye, Quan-Zhi
core  

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

open access: yesJournal 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   +7 more
wiley   +1 more source

EVOLUTION OF COMET-LIKE ORBITS OF METEORITE- PRODUCING GROUPS AND THEIR PARENT BODIES

open access: yesOdessa Astronomical Publications, 2019
This paper presents the results of the study of evolution of Jupiter-family comet-like orbits of six meteorite-producing groups, including sporadic fireballs from the IAU MDC database 2007 [1], sporadic meteors from the SonataCo database [2 ...
N. A. Konovalova   +2 more
doaj   +1 more source

Are Trojan collisional families a source for short--period comets?

open access: yes, 1995
We have investigated the dynamical evolution of fragments generated by the impact breakup of Trojan asteroids, in order to study the formation of collisional families in the Trojan clouds and to identify a possible genetic connection between these ...
VANZANI V.   +2 more
core  

CCD photometry of distant comets II [PDF]

open access: yes, 2001
R band CCD photometric observations of short period Jupiter family comets in the heliocentric region of 2.11 AU less than or equal to R-h less than or equal to 5.63 AU were performed using the 4.2 m William Herschel Telescope on La Palma in December 1998.
A. Fitzsimmons   +5 more
core   +1 more source

Sodium–glucose cotransporter 2 inhibition and injection burden in mild diabetic macular edema: An exploratory post hoc analysis of the COMET trial

open access: yesJournal of Diabetes Investigation, EarlyView.
Combining oral sodium‐glucose cotransporter 2 inhibitors with reduced intravitreal injections of anti‐vascular endothelial growth factor showed potential efficacy for mild diabetic macular edema. ABSTRACT Aims To investigate the potential of sodium–glucose cotransporter 2 inhibitors (SGLT2i) as a less invasive treatment option for mild diabetic macular
Yoko Takatsuna   +6 more
wiley   +1 more source

Comet 289P/Blanpain: Near-perihelion Activity and the Phoenicids

open access: yesThe Astronomical Journal
We present NEOWISE observations of Jupiter family comet 289P/Blanpain, the parent body of the Phoenicid meteoroid stream. Near-infrared images at 3.4 μ m (W1) and 4.6 μ m (W2) were obtained near perihelion on two occasions: UT 2019 October 30 (inbound ...
Toshihiro Kasuga
doaj   +1 more source

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