Results 131 to 140 of about 329,629 (202)

Estimates of DNA damage by the comet assay in the direct-developing frog Eleutherodactylus johnstonei (Anura, Eleutherodactylidae)

open access: yesGenetics and Molecular Biology, 2011
The aim of this study was to use the Comet assay to assess genetic damage in the direct-developing frog Eleutherodactylus johnstonei. A DNA diffusion assay was used to evaluate the effectiveness of alkaline, enzymatic and alkaline/enzymatic treatments ...
Laura Carolina Valencia   +3 more
doaj  

Environmentally relevant concentrations of thiamethoxam cause cytotoxic and genotoxic damage in bullfrog (Lithobates catesbeianus) tadpoles. [PDF]

open access: yesEcotoxicology
De Oliveira AA   +10 more
europepmc   +1 more source

AIComet: a reliable automated scoring program for DNA damage assessment in the comet assay. [PDF]

open access: yesArch Toxicol
Germot A   +8 more
europepmc   +1 more source

Observational views of Donati's comet, 1858, 4 [picture] /

open access: yes
Title devised by cataloguer based on inscription.; Part of the collection: Donati's comet, 1858; Inscriptions: Fig. X, Fig. XI--On image; "Ludwig Becker" del & lith--Printed below image lower left; "Ladd & Carr imp."--Printed below image lower right ...
Becker, Ludwig, 1808?-1861.
core  

Observational views of Donati's comet, 1858, 1 [picture] /

open access: yes
Title devised by cataloguer based on inscription.; Part of the collection: Donati's comet, 1858; Inscriptions: Fig. I-III--On image; "Ludwig Becker" del & lith--Printed below image lower left; "Ladd & Carr imp."--Printed below image lower right; "Donati ...
Becker, Ludwig, 1808?-1861.
core  

Strength of comet material and Hertzian contact-mechanics applied to the landing of Philae on comet Churyumov-Gerasimenko

open access: yes, 2009
We estimate the strength of cometary material using fracture mechanics and regarding the comet material as a green "ceramic" body. The breakage strength Y is estimated using the fracture strength of ceramic slurries, so-called green bodies, and is ...
Arnold, W., Möhlmann, D.
core  

Observational views of Donati's comet, 1858, 2 [picture] /

open access: yes
Title devised by cataloguer based on inscription.; Part of the collection: Donati's comet, 1858; Inscriptions: Fig. IV-VI--On image; "Ludwig Becker" del & lith--Printed below image lower left; "Ladd & Carr imp."--Printed below image lower right; "Donati ...
Becker, Ludwig, 1808?-1861.
core  

Integrated assessment of thiram toxicity in pangasius fish: Erythrocytic abnormalities, gill and intestinal defense mechanisms, and genotoxicity. [PDF]

open access: yesPLoS One
Sageer N   +10 more
europepmc   +1 more source

Comet nuclei aggregation and thermal simulations to prepare the Rosetta mission

open access: yes, 2008
The international Rosetta mission will study in depth 67P/Churyumov-Gerasimenko's nucleus global structure and the onset of its activity during the pre-perihelion phase.
Hadamcik, Edith   +8 more
core  

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