Results 11 to 20 of about 329,629 (202)

Effect of terahertz irradiation on DNA damage repair in living cells. [PDF]

FEBS Open Bio
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Ueno Y, Yamazaki S, Hoshina H, Harata M.
europepmc   +2 more sources

Measuring Physical Properties at the Surface of a Comet Nucleus [PDF]

, 2021
The European Space Agency’s cornerstone mission Rosetta is due for launch in January 2003. It will perform a rendezvous with comet 46P/Wirtanen beyond 3 AU and, following an initial mapping phase, deploy a lander to a selected site on the nucleus surface.
Ball, Andrew Jonathan, Ball, Andrew J.
core   +1 more source

Integrated Biomarker Assessment of Bifenthrin, Chlorpyrifos and Endosulfan Toxicity in Indigenous Carps (Catla catla and Labeo rohita): Oxidative Stress, Genotoxicity and Nuclear Alterations. [PDF]

Vet Med Sci
Combined exposure to bifenthrin–chlorpyrifos and bifenthrin–endosulfan mixtures induced oxidative stress, genotoxicity and nuclear abnormalities in Catla catla and Labeo rohita. Antioxidant and DNA damage biomarkers provide sensitive tools for assessing pesticide‐related ecological risks in aquatic environments. ABSTRACT Background The extensive use of
Naz H, Abdullah S, Ahmed T, Abbas K, Ijaz MU, Ullah Q, Naz S, Khan RU, Rossi L, Ahmad S, Alonaizan R.   +10 more
europepmc   +2 more sources

Stochastic modeling for the COMET-assay [PDF]

, 2003
We present a stochastic model for single cell gel electrophoresis (COMET-assay) data. Essential is the use of point process structures, renewal theory and reduction to intensity histograms for further data ...
Hösel, V., Boulesteix, Anne-Laure, Hösel, Volker, Liebscher, Volkmar, Liebscher, V.   +4 more
core   +1 more source

Thermal model of water and CO activity of Comet C/1995 O1 (Hale-Bopp) [PDF]

, 2011
An investigation of the activity of Comet C/1995 O1 (Hale-Bopp) with a thermophysical nucleus model that does not rely on the existence of amorphous ice is presented.
H.U. Keller, U. Motschmann, N. Gortsas, Kührt, Ekkehard, Kührt, E., Gortsas, N., Keller, H.U., E. Kührt, Motschmann, U.   +8 more
core   +1 more source

Comet P/2021 HS (PANSTARRS) and the Challenge of Detecting Low-activity Comets

The Planetary Science Journal, 2023
Jupiter-family comet (JFC) P/2021 HS (PANSTARRS) only exhibits a coma within a few weeks of its perihelion passage at 0.8 au, which is atypical for a comet.
Quanzhi Ye, Michael S. P. Kelley, James M. Bauer, Tony L. Farnham, Dennis Bodewits, Luca Buzzi, Robert Weryk, Frank J. Masci, Michael S. Medford, Reed Riddle, Avery Wold   +10 more
doaj   +1 more source

Comparative study of water ice exposures on cometary nuclei using multispectral imaging data [PDF]

, 2016
The ESLAB 50 Symposium - spacecraft at comets from 1P/Halley to 67P/Churyumov-GerasimenkoInternational audienceDeep Impact, EPOXI and Rosetta missions visited comets 9P/Tempel 1, 103P/Hartley 2 and 67P/Churyumov-Gerasimenko respectively.
Lamy, P., Lin, Z. -Y, Guettler, C., Kuehrt, E., Oklay, N.,, Bertaux, J. -L., Hofmann, M., Kovacs, G., Thomas, Nicolas, Debei, S.,, Lopez Moreno, J. J.,, Debei, Stefano, Preusker, F.,, Keller, H. U., Sierks, H., A'Hearn, M. F.,, Scholten, F., Lin, Z.-Y., Ip, W., Bertini, Ivano, Shi, X., Pajola, M., Debei, S., Pommerol, A., Gicquel, Adeline, Bertaux, J. -L, Davidsson, B., Bertaux, J. -.L., Hofmann, M.,, Naletto, G., Vincent, J. -.B., Vincent, J.-B., Lamy, P. L., Fulle, M., Kramm, J. -R, De Cecco, M.,, Shi, X.,, Bodewits, Dennis, Hviid, S., Knollenberg, J., Preusker, F., Lamy, Philippe L., Thomas, N., Guettler, C.,, Kührt, E., Vincent, J., Naletto, G.,, Fulle, M.,, Lara, L., Groussin, O.,, Kramm, J.-R., Gutiérrez, Pedro J., Sunshine, J. M., Barucci, M., Ip, W. -.H., Hall, I.,, Sierks, Holger, Da Deppo, V., Sunshine, Jessica M., Vincent, J. -B., Lopez Moreno, J. J., Rodrigo, R., Gicquel, A., Gicquel, A.,, Tubiana, C., Preusker, Frank, Davidsson, B. J. R., Pommerol, Antoine, Rickman, H., Jorda, L.,, Hviid, Stubbe F., Deller, J.,, Vincent, Jean-Baptiste, Groussin, O., Oklay, Nilda, Güttler, C., Sunshine, J., Barucci, M. A., Vincent, J. -B, Barucci, M. A.,, Kramm, J. -.R., Kuehrt, E.,, Bertaux, J.-L., A'Hearn, Michael F., Fulle, Marco, De Cecco, M., Fornasier, S.,, Kuppers, M.,, Lara, Luisa M., Barbieri, Cesare, Koschny, D.,, Lazzarin, M., Lazzarin, M.,, Gutierrez, P. J.,, Bertaux, Jean-Loup, Gutierrez, P. J., Barbieri, C., Davidsson, Björn J. R., Koschny, Detlef, Thomas, N.,, Groussin, Olivier, Rickman, Hans, Koschny, D., Sunshine, J. M.,, Mottola, Stefano, Oklay, N., A'Hearn, M. F., Pajola, Maurizio, Tubiana, C.,, Lamy, P. L.,, Davidsson, B. J. R.,, Kovacs, G.,, Rickman, Hans,, Bertini, I., Lin, Z. -Y., Hall, I., Deller, J., Gutierrez, P., Scholten, F.,, Ip, W.-H., Fornasier, S., Kührt, Ekkehard, Güttler, Carsten, Ip, W. -H, Bodewits, D.,, Scholten, Frank, Kramm, J. -R., Jorda, L., Bodewits, D., Barbieri, C.,, Pajola, M.,, Barucci, M. Antonella, Deller, Jakob, Rodrigo, R.,, Da Deppo, V.,, Ip, W. -H., Lara, L. M.,, Keller, H. U.,, Lin, Z., Kramm, J., Cremonese, Gabriele, Bertaux, J., Lin, Z. -.Y., Cremonese, G., Keller, H., Sierks, H.,, Rodrigo, Rafael, Pommerol, A.,, Mottola, S.,, Marzari, F.,, Lopez Moreno, J., Cremonese, G.,, Mottola, S., Küppers, M., Fornasier, Sonia, A'Hearn, M., Hviid, S. F.,, Lara, L. M., Thomas, Nicholas, Hviid, S. F., Knollenberg, J.,, Bertini, I.,, Marzari, F., Kührt E, Oklay N., Hofmann M., Güttler C, Hall I, Pajola M., Kramm J R, Marzari F, Debei S, Ip W. -H., Scholten F, López-Moreno, José Juan, Bertaux J. -L., Lin Z Y, Hall I., Kramm J. -R., Gicquel A., Rodrigo R., Rickman H., Mottola S., De Cecco M, Debei S., Shi X., Davidsson B JR, Preusker F, Scholten F., Lara, Luisa María, Naletto G, Rickman H, Tubiana C, Lara L. M., Gutierrez P. J., Lamy P. L., Bodewits D., N. Oklay, Naletto G., Groussin O. S., Gutíerrez P J, Ip W H, Da Deppo V., Pajola M, Lopez Moreno J. J., Groussin O S, Rodrigo R, Keller H U, Kuppers M., Fornasier S., Gicquel A, Knollenberg J, Bertaux J L, Sierks H, Lazzarin M., Barucci M. A., Lin Z. -Y., Cremonese G., Jorda L, Fulle M, Knollenberg J., Deller J., Rodrigo Montero, Rafael, Vincent J B, Shi X, Lamy P L, Bertini I., Da Deppo V, Keller H. U., Mottola S, Fornasier S, Lopez Moreno J J, Pommerol A., Barbieri C., Sunshine J. M., Hofmann M, A'Hearn M. F., Guttler C., Thomas N, Thomas N., Kovacs G., Koschny D., Lazzarin M, Marzari F., Küppers M, Barbieri C, De Cecco M., Jorda L., Fulle M., Tubiana C., Davidsson B. J. R., Barucci M A, Oklay N, Bodewits D, Bertini I, Hviid S. F., Vincent J. -B., Sunshine J M, Cremonese G, Koschny D, Preusker F., A'Hearn M F, Lara L M, Hviid S F, Sierks H., Deller J, Kovacs G, Kuhrt E., Pommerol A, da Deppo, Vania, de Cecco, Mariolino   +270 more
core   +5 more sources

The size distribution of Jupiter Family comet nuclei [PDF]

, 2010
We present an updated cumulative size distribution (CSD) for Jupiter Family comet (JFC) nuclei, including a rigorous assessment of the uncertainty on the slope of the CSD.
Lowry, S. C., P. Weissman, Snodgrass, Colin, A. Fitzsimmons, Fitzsimmons, Alan, Lowry, S., Lowry, S.C., Fitzsimmons, A., S. C. Lowry, Wesisman, P., Snodgrass, C., Weissman, P., C. Snodgrass   +12 more
core   +1 more source

Finite difference time domain simulation of radar wave propagation through comet nuclei dielectric models

, 2008
The 90 MHz radar-wave experiment, Comet Nucleus Sounding Experiment by Radiowave Transmission (CONSERT), on board the Rosetta mission (ESA, 2004) is expected to probe the nucleus of the comet 67P/Churyumov-Gerasimenko (67P/C-G) to reveal information on ...
Carley, Ruth A., Heggy, Essam, Essam HEGGY, Ruth A. CARLEY   +3 more
core   +2 more sources

Toxoplasma gondii infection can induce retinal DNA damage:an experimental study

International Journal of Ophthalmology, 2014
AIM: To detect whether Toxoplasma gondii (T. gondii) infection of mice can induce retinal DNA damage.METHODS: A total of 20 laboratory-bred male Swiss albino mice were used and divided into four groups:control group (non-infected animals); T ...
Nagwa Mostafa El-Sayed, Eman Mohamed Aly
doaj   +1 more source