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718 results for “Crown”
Clinical expression of programmed maxillary buccal expansion and buccolingual crown inclination with Invisalign® EX30® and SmartTrack® aligners and investigating the effect of 1-week vs 2-week aligner change regimes: A retrospective study.
<p><strong><em>Objective:</em></strong> The objective of this retrospective cohort study is to assess and compare the accuracy of three different Invisalign<sup>® </sup>treatment regimens involving variations of aligner change frequency and type of aligner material in achieving maxillary dental buccal expansion.</p> <p> </p> <p><strong><em>Methods:</em></strong> 120 adult patients whose treatment involved maxillary dental expansion with Invisalign<sup>®</sup> were selected. Three groups, each of 40 patients were identified: SmartTrack<sup>®</sup> one-week changes (ST1), SmartTrack<sup>®</sup> two-week changes (ST2) and EX30<sup>®</sup> two-week changes (EX2). The groups were assessed by comparing actual changes achieved with those prescribed by ClinCheck<sup>®</sup>. The rates of clinically significant inaccuracies (CSI) seen for buccal expansion (≥ 0.5mm) and buccolingual inclination (≥2°) during expansion were then ascertained.</p> <p> </p> <p><strong><em>Results:</em></strong> With respect to expansion, the ST1 group showed the highest rate of CSI at all tooth levels studied while the ST2 group showed the lowest rate of CSI as well as the lowest mean inaccuracy for each tooth level studied. In terms of buccolingual inclination, the ST1 group displayed the highest rate of CSI across all tooth levels studied, while the EX2 group displayed the lowest rate of CSI at all tooth levels except for the canine level where the ST2 group displayed the lowest rate of CSI. A tendency toward overexpression of buccal crown inclination, and underexpression of buccal expansion was seen at all tooth levels.</p> <p> </p> <p><strong><em>Conclusions:</em></strong> Two-week aligner change regimens offer improved accuracy compared with one-week aligner changes. SmartTrack<sup>®</sup> two-week changes were the most accurate for buccal expansion, while EX30<sup>®</sup> 2-week changes were the most accurate for buccolingual inclination.</p>
Data from: Loss of flockmates weakens winter site fidelity in golden-crowned sparrows (Zonotrichia atricapilla)
<p>Animal social interactions have an intrinsic spatial basis—individuals must be close in space to interact, whether directly (e.g., co-occurrence, allo-grooming) or indirectly (e.g., interact with latrines or with parasites at communal nests). This presents a dilemma when determining causality: do individuals interact socially because they happen to share space, or do they share space because they are socially linked? We present a method that uses demographic turnover events as a natural experiment to investigate the links between social associations and space use in the context of inter-annual winter site fidelity in a migratory bird. We previously found that golden-crowned sparrows (<em>Zonotrichia atricapilla</em>) show consistent flocking relationships across years, and that familiarity between individuals influences the dynamics of social competition over resources. Using long-term data on winter social and spatial behavior across 10 years, we show that (i) sparrows exhibit inter-annual fidelity to winter home ranges on the scale of tens of meters and (ii) the precision of inter-annual spatial fidelity increases with age, but (iii) this fidelity is weakened when sparrows lose social partners from the previous year. Furthermore, the effect of social partner loss on spatial fidelity was higher for older birds, suggesting that social fidelity may play an increasingly important role on spatial behavior across the lifetime of this migratory bird. Our study provides evidence that social relationships can influence spatial fidelity, and shows the potential of long-term studies for disentangling the relationship between social and spatial behavior.</p>
Data from: The affinities of the late Triassic Cryptovaranoides and the age of Crown Squamates
<p>Most living reptile diversity is concentrated in Squamata (lizards, including snakes), which have poorly known origins in space and time. Recently, †Cryptovaranoides microlanius from the Late Triassic of the United Kingdom was described as the oldest crown squamate. If true, this result would push back the origin of all major lizard clades by 30-65 million years and suggest that divergence times for reptile clades estimated using genomic and morphological data are grossly inaccurate. Here, we use CT scans and expanded phylogenetic datasets to re-evaluate the phylogenetic affinities of †Cryptovaranoides and other putative early squamates. We resolve †Cryptovaranoides as a member of the bird and crocodilian total clade, Archosauromorpha, in sharp contrast to its originally hypothesized affinities. Bayesian total evidence dating supports a Jurassic origin of crown squamates, not Triassic as recently suggested. We highlight how features traditionally linked to lepidosaurs are in fact widespread across Triassic reptiles, reaffirming the importance of critical morphological analysis for interpreting the fossil record and calibrating the Tree of Life.</p>
King Gustav Vasa's Helmet with a Gilt Crown
The helmet was fashioned in southern Germany circa [1540](https://bit.ly/2kdFNLr), and is unusual because it is one of the few surviving helmets adorned with a crown. It was purchased in [Augsburg](https://bit.ly/2MwwuQc) on the King's behalf by his agent, the merchant Claus Heijder. The helmet was likely used in [Gustav Vasa's](https://bit.ly/2k10R7K) funeral procession in 1560, because a helmet adorned with a gilded crown is mentioned by a contemporary who witnessed the ceremony. The gilded crown is medieval in style – a suitable symbol of Gustav Vasa, who had one foot in the old union and one in the newly minted [hereditary monarchy](https://bit.ly/2kdG7tD). Source: Objaverse 1.0 / Sketchfab
Double Crown
Medium poly with texture (ig - @kar.yan._ ) . Software used - Maya Source: Objaverse 1.0 / Sketchfab
A box from "The Crown" pharmacy in Kraków
The presented cardboard packaging for medicines from 1913 was produced by Fabryka Pudełek Pacanowski Jan (Jan Pacanowski's Box Factory) located at 20 Grzegórzecka Street in Kraków. The box comes from the "Pod Koroną" pharmacy, which operated on the Main Square in Kraków. It consists of two parts: the part for storing medicines and the lid with a decorative label. At the top of the label, the pharmacy's emblem is placed: a golden crown held up by two angels. An inscription around it says: "Apteka pod Koroną w Krakowie. Fr.(anciszka) Ksaw.(erego) Mikuckiego" (Franciszek Ksawery Mikucki's The Crown Pharmacy in Kraków). ID no.: Teka 10/180 Time of creation: 1913 Museum: The Museum of Pharmacy at the Jagiellonian University Medical College in Kraków https://muzea.malopolska.pl/en/objects-list/1758 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
The Crown
# **ONLY ONE CAN BE KING FOR A DAY** inspired by Silvagunner's king for another day tournament here is a 3D model of the main prize. the high quality crown Source: Objaverse 1.0 / Sketchfab
CPDP crowning type 1
Realized within the project of the sourced-based reconstruction of the New Synagogue in Wroclaw/Breslau (Poland). Link to the 3D model documentation: http://www.vfu-oppler.hs-mainz.de/en/wisski/navigate/4779/view?wisski_bundle=b0c45007d4aaa61f5961be4fb6902a6b. Supported by »The German Federal Government Commissioner for Culture and the Media « (02/2018-11/2019) and »The Foundation for Polish-German Cooperation« (05/2018). Magnified by https://architekturinstitut.hs-mainz.de/. Published under CC-BY-NC-SA 4.0. Source: Objaverse 1.0 / Sketchfab
Evaluation of Bioflex and Zirconia Crowns Versus Stainless Steel Crowns on Primary Molars: Randomized Controlled Clinical Trial
ClinicalTrials.gov study NCT07156838. IPD Sharing: NO. Countries: 1. Publications: 3.
In Vivo Evaluation of the Accuracy of Immediate Screw-Retained Provisional Crowns Fabricated Using Digital Planning and Guided Surgery
ClinicalTrials.gov study NCT07315607. IPD Sharing: NO. Countries: 1. Publications: 19.
Clinical Comparison Between Stainless-steel Crown, Zirconia Crown and Bioflx Crown in Primary Molars
ClinicalTrials.gov study NCT06706167. IPD Sharing: UNDECIDED. Countries: 1. Publications: 10.
Removable Partial Denture Abutments Restored With Monolithic Zirconia Crowns
ClinicalTrials.gov study NCT03283709. IPD Sharing: NO. Countries: 1. Publications: 37.
Interleukin-2 (IL-2), Interleukin-5 (IL-5) and Interleukin-17 (IL-17) Levels of Patients With Stainless Steel Crowns
ClinicalTrials.gov study NCT06439095. IPD Sharing: NO. Countries: 1. Publications: 1.
CROWN CORONATION: COVID-19 Research Outcomes Worldwide Network for CORONAvirus prevenTION
ClinicalTrials.gov study NCT04333732. IPD Sharing: YES. Countries: 5. Publications: 4.
Clinical Success of Two Stainless Steel Crowns in Children Treated Under General Anesthesia
ClinicalTrials.gov study NCT07393854. IPD Sharing: NO. Countries: 1. Publications: 0.
Basic Study of Fabricating Biomorphic Crowns
ClinicalTrials.gov study NCT02609178. IPD Sharing: UNDECIDED. Countries: 1. Publications: 17.
Bilateral; Flank Study With Crown Cooling Insert
ClinicalTrials.gov study NCT02554760. IPD Sharing: NO. Countries: 1. Publications: 1.
Feather nitrogen and carbon stable isotope (d15N and d13C) values for Golden-crowned Sparrows
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Chemosensory behaviour of juvenile crown-of-thorns sea stars (Acanthaster sp.), attraction to algal and coral food, and avoidance of adult conspecifics
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Data from: Cretaceous crown male ant reveals the rise of modern lineages
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International Brain Laboratory public data
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OpenNeuro
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