Results 21 to 30 of about 790,952 (308)
Arctic sea ice has been on the decline over the past several decades, and multi-year sea ice has decreased significantly in its areal share of the overall sea ice cover.
Matthew Tooth, Mark Tschudi
doaj +1 more source
New Bathonian (Middle Jurassic) sauropod remains from the Valtos Formation, Isle of Skye, Scotland [PDF]
The discovery of a sauropod tooth and a single sauropod footprint from the Valtos Formation supplements our knowledge of these dinosaurs from the Middle Jurassic of the Isle of Skye.
Clark, Neil D.L., Gavin, Patrick
core +4 more sources
Tracking diphyodont development in miniature pigs in vitro and in vivo
Abnormalities of tooth number in humans, such as agenesis and supernumerary tooth formation, are closely related to diphyodont development. There is an increasing demand to understand the molecular and cellular mechanisms behind diphyodont development ...
Fu Wang +8 more
doaj +1 more source
Background This in vivo experimental study investigated the effect of stem cells from human exfoliated deciduous teeth (SHEDs) on early osteogenesis around implants.
Xu Cao +4 more
doaj +1 more source
The biomechanical function of periodontal ligament fibres in orthodontic tooth movement [PDF]
Orthodontic tooth movement occurs as a result of resorption and formation of the alveolar bone due to an applied load, but the stimulus responsible for triggering orthodontic tooth movement remains the subject of debate.
Fagan, Michael J. +4 more
core +4 more sources
IFT140+/K14+ cells function as stem/progenitor cells in salivary glands
Stem/progenitor cells are important for salivary gland development, homeostasis maintenance, and regeneration following injury. Keratin-14+ (K14+) cells have been recognized as bona fide salivary gland stem/progenitor cells.
Xueming Zhang +5 more
doaj +1 more source
Background Mesenchymal stem cell (MSC)-based cartilage tissue regeneration is a treatment with great potential. How to enhance the MSC chondrogenic differentiation is a key issue involved in cartilage formation.
Haoqing Yang +9 more
doaj +1 more source
Radiographic Study of Developmental Alteration in Tooth Number Among Children in IIUM Dental Clinic [PDF]
Background: The aim of this research was to determine the prevalence, distribution and association of developmental alteration in tooth number with gender, location, and presence of delayed eruption of tooth among children who attended to Student's ...
Ardini, Y. D. (Yunita) +3 more
core +3 more sources
Background Unresolved inflammation and tissue destruction are considered to underlie the failure of dental pulp repair. As key mediators of the injury response, dental pulp stem cells (DPSCs) play a critical role in pulp tissue repair and regeneration ...
Jie Chen +4 more
doaj +1 more source
Investigating Arctic Sea Ice Survivability in the Beaufort Sea
Arctic sea ice extent has continued to decline in recent years, and the fractional coverage of multi-year sea ice has decreased significantly during this period.
Matthew Tooth, Mark Tschudi
doaj +1 more source

