Results 61 to 70 of about 8,064,980 (248)

Short-period Jupiter family comets after Stardust

, 2008
The NASA Stardust mission has provided for laboratory study an extensive data set of cometary dust of known provenance (from comet 81P/Wild 2) yielding detailed insights into the composition of the comet.
Kearsley, Anton T., Burchell, Mark J.
core   +1 more source

High‐Content Screening Comparison of 1R6F Cigarette Smoke Extract and Selected Heated Tobacco and Electronic Vapour Product Aerosol Extracts in Endothelial and Bronchial Epithelial Cell Models

Journal of Applied Toxicology, EarlyView.
ABSTRACT Cigarettes induce oxidative stress and DNA damage, processes that contribute to cardiovascular and pulmonary disease. High content screening (HCS) is an increasingly valuable tool for comparative toxicology because it enables simultaneous quantification of multiple mechanistic endpoints at single‐cell resolution. In this study, HCS was used to
Edgar Trelles Sticken, Konstantinos Papikinos, Fiona Chapman, Roman Wieczorek, Sarah Jean Pour, Torge Evenburg, Sandra Otte, Tiandan Wu, Liam Simms, Matthew Stevenson   +9 more
wiley   +1 more source

Detection of OH Maser Emission in the 71 yr Periodic Comet 12P/Pons-Brooks Using the 40 m Thai National Radio Telescope

The Planetary Science Journal
Although the optical cometary database is extensive, the radio database is limited. The 18 cm OH maser observations of comets allow us to determine (i) the production rate of OH ( Q _OH ) and (ii) the water expansion velocity, for each comet.
Nobuyuki Sakai, Saran Poshyachinda, Koichiro Sugiyama, Wiphu Rujopakarn, Boonrucksar Soonthornthum, Apichat Leckngam, Busaba H. Kramer, Phrudth Jaroenjittichai, Bannawit Pimpanuwat, Dan Singwong, Kitipoom Kanjana, Nikom Prasert, Songklod Punyawarin, Spiro George Sarris, Teep Chairin, Kamorn Bandudej, Natthaphong Kruekoch, Nattapong Duangrit, Chalunthon Nuchur, Haseng Sani, Nattawit Chanwedchasart, Pathit Chatuphot, Prachayapan Jiraya, Saharat Sathipjan, Adirake Eakwan, Chayanin Larkaew, Settasak Naewchan, Pichate Pha-Kham, Siritida Duangbuppha, Natee PongTeerarat, Nutdanai Hantankul, Thodsawat Chaichana, Attapon Bunwong, Lalida Tantiparimongkol, Wijitra Potakum, Panupan Doomcome, Anya Poonnawatt, Nonwarit Borvornsareepirom, Thanadon Paksin, Warakorn Noisapung, Pathorn Sathapornvajana, Naphat Yawilerng, Nonnadda Silamai, Ornjira Krataithong, Thita Dilokthanakul, Kritsada Angkaew, Nattawut Chaiwongwan, Sothaya Prathumsub, Jittimat Khanchaiyapoom, Hideyuki Kobayashi, Yu-An Chen, Nawamin Intrarat, Gundolf Wieching, Ewan Barr, Jason Wu, Niclas Esser, Tobias Winchen, Pablo de Vicente   +57 more
doaj   +1 more source

Research of effect of initial data displacement on results of calculation of orbits evolution for short-period comets

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
We study the problems of stability of solution and the effect of initial data errors on the results of calculation of orbits evolution for short-period comets on the time intervals within the order of 100 years.
A. A. Zausaev
doaj   +1 more source

Studying Short-Period Comets and Long-Period Comets Detected by WISE/NEOWISE [PDF]

, 2014
The Wide-field Infrared Survey Explorer (WISE) mission surveyed the sky in four infrared wavelength bands (3.4, 4.6, 12 and 22 μm) between January 2010 and February 2011.
Kramer, Emily
core  

Use of ultrasonography in assessing peri‐implant osseous defects: An in vitro study

Journal of Periodontology, EarlyView.
Abstract Background The purpose of this study is to investigate the feasibility and diagnostic accuracy of ultrasonography in peri‐implant defect identification and evaluation, and to compare ultrasonography (USG) with cone‐beam computed tomography (CBCT) in defect identification and evaluation in an in vitro model.
Melissa Rachel Fok, Alice Yee Ting Kan, Chris Tat Chuen Fok, Ray Tanaka, George Pelekos   +4 more
wiley   +1 more source

Activity Analysis on 68P/Klemola and 78P/Gehrels 2 in 2018–2020 Perihelion Passage

The Astronomical Journal
We performed secular monitoring broadband photometric observations on Jupiter Family Comets (JFCs) 68P/Klemola and 78P/Gehrels 2 from 2018 November to 2020 March with the Yaoan High Precision Telescope.
Ruiqi Xu, Jianchun Shi, Yuehua Ma, Yingqi Xin, Fan Li, Ye Yuan   +5 more
doaj   +1 more source

The Evolution of Activity and Chemical Composition in Rosetta’s Comet Targets across Multiple Apparitions: Complications for CS2 as the CS Parent in Comet Nuclei

The Planetary Science Journal, 2023
Jupiter-family comets are ephemeral small bodies injected into the inner solar system from the Kuiper Belt, doomed to either sublimate all their volatiles and become inert or violently shatter from the activity.
John W. Noonan, Joel Wm. Parker, Walter M. Harris, Steven Bromley, Mohammad Saki, Youssef Moulane, Davide Farnocchia, Marco Micheli, Jian-Yang Li, Kathleen E. Mandt, Kumar Venkataramani, Dennis Bodewits   +11 more
doaj   +1 more source

Hop production in a low‐trellis espalier system in the subtropical environment

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Hop cultivation (Humulus lupulus L.) is expanding into new regions, particularly under subtropical conditions. Traditionally, hop plants are trained using high‐trellis systems; however, a low‐trellis espalier structure may reduce establishment costs, facilitate phytosanitary management, and improve harvest uniformity.
Deise Maria Feltrin, Monika Rios, Patricia C G de Lima, Sidnei Osmar Jadoski   +3 more
wiley   +1 more source

Planetary perturbations and the origins of short-period comets

The Astrophysical Journal, 1990
To investigate the dynamical plausibility of possible sources for the short-period comets, a representative sample of comet orbits in the field of the sun and the giant planets was integrated, with the aim to determine whether the distribution of orbits from a proposed source that reach observable perihelia (q less than 2.5 AU) matches the observed ...
T. Quinn, S. Tremaine, M. Duncan
openaire   +1 more source