Results 111 to 120 of about 410,984 (326)

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

Families of long-period earthquakes at the Young Shiveluch volcano (Russia) in 2022–2023

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
On April 10, 2023, the strongest eruption of the Young Shiveluch volcano ( Russia, Kamchatka Peninsula) in the last 60 years occurred. The eruption was preceded by a long seismic activity since the end of July 2022.
А.А. Shakirova, А.S. Chemaryov
doaj   +1 more source

Deciduous teeth eruption in full and mosaic type of Down’s Syndrome patient

open access: yesDental Journal, 2005
The purpose of this study was to examined the correlation of deciduous teeth eruption with the karyotipe of) Down’s Syndrome patient. Full and Mosaic karyotype in Down’s Syndrome (DS) patients have different prognostics.
Willyanti Sjarif
doaj   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

open access: yesThe Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes   +2 more
wiley   +1 more source

Characteristics of volcanic gas correlated to the eruption activity; Case study in the Merapi Volcano, periods of 1990-1994

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol2no4.20074Volcanic gases, collected from Gendol and Woro solfatara fields, the summit of Merapi Volcano during 1990-1994, show an increase in chemical composition of H , CO, CO , SO , and HCl prior to the volcanic ...
Priatna Priatna, Eka Kadarsetia
doaj   +1 more source

An Indication for the Binarity of P Cygni from Its Seventeenth Century Eruption

open access: yes, 2010
I show that the 17th century eruption of the massive luminous blue variable (LBV) star P Cygni can be explained by mass transfer to a B-type binary companion in an eccentric orbit, under the assumption that the luminosity peaks occurred close to ...
Akashi   +32 more
core   +1 more source

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford   +9 more
wiley   +1 more source

A Clinical, Radiographic and Histological Study of Unerupted Teeth in Dogs and Cats: 73 Cases (2001–2018)

open access: yesFrontiers in Veterinary Science, 2019
Lack of dental eruption may be accompanied by development of dentigerous cysts and has also been rarely associated with neoplasia. However, little information is available on prevalence of unerupted teeth and associated lesions in dogs and cats. The main
Emma Bellei   +7 more
doaj   +1 more source

Magnetic flux emergence in fast rotating stars

open access: yes, 2007
Fast rotating cool stars are characterised by high magnetic activity levels and frequently show dark spots up to polar latitudes. Their distinctive surface distributions of magnetic flux are investigated in the context of the solar-stellar connection by ...
Holzwarth, V.
core  

Preparatory and precursory processes leading up to the 2014 phreatic eruption of Mount Ontake, Japan

open access: yesEarth, Planets and Space, 2015
We analyzed seismicity linked to the 2014 phreatic eruption of Mount Ontake, Japan, on 27 September 2014. We first relocated shallow volcano tectonic (VT) earthquakes and long-period (LP) events from August to September 2014. By applying a matched-filter
A. Kato   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy