Results 111 to 120 of about 2,437 (254)

A description of dental microanatomy and implantation geometry in Chamaeleonidae

Journal of Anatomy, EarlyView.
A reassessment of the dental histology in adult chamaeleons reveals the presence of periodontal ligament. Alongside alveolar bone and cementum, these tissues together constitute a compacted and remodelled tripartite periodontium. Our findings include the novel observation of plicidentine‐like protuberances of dentine within underlying bone.
Giles D. Sukkert, Ilaria Paparella, Michael R. Doschak, Aaron R. H. LeBlanc, Michael W. Caldwell   +4 more
wiley   +1 more source

Nucleus Ice Associations in Comets Derived from Spatially Resolved Properties of Volatile Gases in the Coma

The Planetary Science Journal
Under favorable conditions, high-resolution long-slit infrared spectroscopic observations of comets can provide information on how ices are associated within the nucleus from spatially resolved properties of volatiles in the coma.
N. Dello Russo, R. J. Vervack Jr., H. Kawakita, B. P. Bonev, M. A. DiSanti, E. L. Gibb, A. J. McKay, N. X. Roth, M. R. Combi, Y. Shou, L. M. Feaga   +10 more
doaj   +1 more source

Amiodarone‐related thyroid dysfunction and associated outcomes in patients with heart failure—A nationwide cohort study

Journal of Internal Medicine, EarlyView.
Abstract Aim Amiodarone increases the risk of thyroid dysfunction, but the prognostic significance of this complication in patients with heart failure (HF) is uncertain. This study investigates the association between amiodarone‐related thyroid dysfunction and risk of HF hospitalization or death in a nationwide cohort.
Søren Lund Kristensen, Sam Aiyad Ali, Mads Ersbøll, Jawad Haider Butt, Rasmus Rørth, Lucas Malta Westergaard, Lauge Østergaard, Finn Gustafsson, Oren Caspi, Emil Fosbøl, Lars Køber, Christian Selmer   +11 more
wiley   +1 more source

On the Border: Searching for Cometary Activity near the Centaur–JFC Transition Line

The Planetary Science Journal
Current wide-field surveys discover ∼15 Jupiter-family comets (JFCs) each year, typically identified via visual detection of a dust coma or tail. The same surveys also discover many asteroids that have distant JFC-like orbits, but with no reported ...
A. Fraser Gillan, Alan Fitzsimmons, Colin Orion Chandler, Colin Snodgrass, Joseph Murtagh   +4 more
doaj   +1 more source

The effect of multiple encounters on short period comet orbits

, 1972
The observed orbital elements of short period comets are found to be consistent with the hypothesis of derivation from long period comets as long as two assumptions are made.
Lowrey, B. E.
core  

Statistical characteristics of comets based on their orbital period [PDF]

, 2019
In this thesis I present characteristics of comet orbits. In the beginning I will introduce relevant astronomical observations, basics of celestial mechanics and six elements of Kepler orbits.
Mikuš, Aljaž
core  

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

Covertly Active Comet (139359) 2001 ME1

The Planetary Science Journal
On 2018 November 18, coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) captured an unrecognized comet crossing its fields of view. We identified this comet to be the minor planet (139359) 2001 ME _1 , whose previously unnoticed dust ...
Qicheng Zhang, Quanzhi Ye, Karl Battams, Matthew M. Knight, Worachate Boonplod, Rainer Kracht   +5 more
doaj   +1 more source

Evaluating School‐Based Obesity Prevention Interventions in 6‐ to 12‐Year‐Old Children: A Scoping Review of All Reported Outcomes and Expert Consultation

Obesity Reviews, EarlyView.
ABSTRACT Introduction This scoping review aims to identify all outcomes reported in school‐based obesity prevention interventions in childhood. It serves as an essential first step towards developing an internationally agreed‐upon Core Outcome Set (COS), which defines what should be measured in all school‐based childhood obesity prevention studies ...
Teatske M. Altenburg, Lotte W. de Vries, Iris J. Grooten, Janneke van 't Hooft, Arend W. van Deutekom, Tessa Roseboom, Erica van den Akker, Michael Duncan, Ulf Ekelund, John J. Reilly, Lisa Reilly, Annette Stafleu, Martyn Standage, Mai J. M. Chinapaw, Deirdre M. Harrington   +14 more
wiley   +1 more source

Search for the True Parent Body of the Phoenicid Meteor Shower

The Astronomical Journal
In 2024, Ďurišová et al. found that the meteor shower Phoenicids, IAU No. 254, code PHO, can originate in the nuclei of three comets, 46P/Wirtanen, 104P/Kowal 2, and 289P/Blanpain.
Martina Kováčová, Luboš Neslušan, Dušan Tomko   +2 more
doaj   +1 more source