Results 101 to 110 of about 550,699 (320)

Are 2I/Borisov and Oort Cloud Comets Alike? [PDF]

arXiv, 2019
The interstellar comet 2I/Borisov bears a strong resemblance to Oort Cloud comets, judging from its appearance in images taken over the first six weeks of observation. To test the proposed affinity in more diagnostic terms, 2I is compared to Oort Cloud comets of similar perihelion distance, near 2 AU.
arxiv  

Comets, historical records and vedic literature

, 2018
A verse in book I of Rigveda mentions a cosmic tree with rope-like aerial roots held up in the sky. Such an imagery might have ensued from the appearance of a comet having `tree stem' like tail, with branched out portions resembling aerial roots ...
A Hiltebeitel, A Parpola, A Sachs, AG Pingre, BV Subbarayappa, DE Pingree, DK Yeomans, DK Yeomans, DR Brown, DW Hughes, FR Stephenson, FR Stephenson, GW Kronk, I Hasegawa, I Hasegawa, I Mahadevan, J Williams, JK Fotheringham, KD Abhyankar, L Achmad, M Miki, M Yano, NK Chandel, PY Ho, R Kochhar, RH Allen, RN Iyengar, RN Iyengar, RN Iyengar, S Kanda, SD Sharma, W Robertson, WS Tsu, Z Xu   +33 more
core   +1 more source

Genotoxicity study of Ethiopian medicinal plant extracts on HepG2 cells

BMC Complementary and Alternative Medicine, 2018
Background Most of herbal medicines are used without any standard safety and toxicological trials although common assumption is that these products are nontoxic. However, this assumption is incorrect and dangerous, so toxicological studies should be done
Wubayehu Kahaliw, Bjorn Hellman, Ephrem Engidawork   +2 more
doaj   +1 more source

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

, 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). The integrated-light photometry of the comet was conducted using RC-800 telescope (D = 80 cm; F = 214.0 cm) with FLI MicroLine 9000 CCD camera.
arxiv   +1 more source

Evaluation of hormonal disturbance and DNA damages in azoospermic patients

مجلة مركز بحوث التقنيات الاحيائية, 2012
he present study was designed to evaluate the hormonal disturbance and the extent of DNA damage in blood cells and its association with azoospermia. Total of 68 subjects (48 azoospermic patients and 20 age-matched healthy subjects) participated in this ...
Ismail A. Abdul-Hassan
doaj   +1 more source

The Dust Trail of Comet 67P/Churyumov-Gerasimenko

, 2007
We report the detection of comet 67P/Churyumov-Gerasimenko's dust trail and nucleus in 24 micron Spitzer Space Telescope images taken February 2004. The dust trail is not found in optical Palomar images taken June 2003.
A'Hearn, A'Hearn, A'Hearn, Agarwal, Agarwal, Brownlee, Burns, Colangeli, David J. Lien, Fernández, Fomenkova, Fukugita, Fulle, Fulle, Fulle, Fulle, Gehrz, Giorgini, Glassmeier, Green, Groussin, Groussin, Hanner, Harker, Harker, Harris, Hörz, Ishiguro, Ishiguro, Ishiguro, Jenniskens, Jenniskens, Keller, Kidger, Kimura, Kolokolova, Lamy, Lamy, Lamy, Lasue, Lebofsky, Levasseur-Regourd, Lisse, Lisse, Lisse, Lisse, Mathis, McDonnell, McDonnell, Meech, Michael S. Kelley, Neckel, Osip, Reach, Reach, Rieke, Schleicher, Smith, Spencer, Spitzer Science Center, Sykes, Sykes, Vaubaillon, Werner, William T. Reach   +64 more
core   +1 more source

Interaction of SPIN90 with the Arp2/3 Complex Mediates Lamellipodia and Actin Comet Tail Formation*

Journal of Biological Chemistry, 2006
The appropriate regulation of the actin cytoskeleton is essential for cell movement, changes in cell shape, and formation of membrane protrusions like lamellipodia and filopodia.
Dae Joong Kim, Sung Hyun Kim, C. Lim, Kyu-Yeong Choi, C. Park, B. Sung, M. Yeo, Sunghoe Chang, Jin-Kyu Kim, W. Song   +9 more
semanticscholar   +1 more source

Determinants of and future violations following deferred prosecution and non‐prosecution agreements in corporate criminal cases

Contemporary Accounting Research, EarlyView.
Abstract The US Department of Justice's increasing use of deferred prosecution and non‐prosecution agreements (D/NPAs) over the past two decades has sparked debate about their merits compared with traditional plea deals, which often result in criminal convictions.
Gus De Franco, R. Christopher Small, Aida Sijamic Wahid   +2 more
wiley   +1 more source

DNA Damage of Lung Cells from Immature Cadmium-Ingested Mice [PDF]

Pakistan Veterinary Journal, 2014
The objective of this study was to investigate the effects of cadmium on DNA damage of lung cells in immature animals. Seventy-two immature mice were randomly divided into twelve cadmium-ingested groups including low dose (1/100 LD50, 1.87 mg/kg BW ...
Xue-feng Yang, Hai-tang Zhang, Guo-ying Fan, Dong-yang Liu, Ya-ming Ge, Jin-qing Jiang, Zi-liang Wang   +6 more
doaj  

Comet C/2011 L4 (PanStarrs): Small nucleus, fast rotator and dust rich comet observed after perihelion [PDF]

arXiv, 2016
Orbital elements of C2011 L4 (PanStarrs) Oort cloud comet, computed by MPC (Minor Planet Center, Minor Planet Electronic Circular 2012-T08), show that the closest approach to the Sun occurred on 2013 March 10th, at about 0.3 A.U., then about 4,51x10^7 km. Discovered by Richard Wainscoat (Institute for Astronomy, University of Hawaii) on four CCD images
arxiv