The characterization of mesenchymal progenitors is central to understanding development, postnatal pathology and evolutionary adaptability. The precise identity of the mesenchymal precursors that generate the coronal suture, an important structural boundary in mammalian skull development, remains unclear. We show in mouse that coronal suture progenitors originate from hedgehog-responsive cephal...

We revisit the flare on 1992 January 13, which is now universally termed the “Masuda flare”. The revisit is motivated not only by its supposed uniqueness despite accumulating observations of hard X-ray coronal emission, but also by the improvement of Yohkoh hard X-ray imaging, which was achieved after the intensive investigations on this celebrated event. We notice that the separation between t...

BACKGROUND Muscles are important "sensors of the joint instability". The aim of this study was to identify the neuro-motor control strategies adopted by patients with anterior shoulder instability during overhead shoulder elevation in two planes. METHODS The onset, time of peak activation, and peak magnitude of seven shoulder muscles (posterior deltoid, bilateral upper trapezius, biceps brach...

Background and Aim: The main goal of root canal treatment is to prevent or treat apical periodontitis. The aim of the present study was to assess the coronal restoration status, root canal filling quality, periapical health condition, and related factors in endodontically treated teeth at the Dental Faculty of Islamic Azad University of Medical Sciences, Tehran, Iran, in 2011-12. Materials and...

In the present contribution, a facile and efficient protocol for synthesis a nanohybrid structure of core-coronal-shell ZnO@ZIF-8 using ascorbic acid (ZnO@AA/ZIF-8) as a new adsorbent for arsenic removal from water has been represented. For this purpose, the ZnO nanospheres were synthesized by a green and simple method followed by coating with ascorbic acid (AA) to modify their surface to achie...

It is clear that the solar corona is being heated and that coronal magnetic fields undergo reconnection all the time. Here we attempt to show that these two facts are related--i.e. coronal reconnection generates heat. This attempt must address the fact that topological change of field lines does not automatically generate heat. We present one case of flux emergence where we have measured the ra...

There is evidence that coronal contrasts involving retroflexes are less clearly distinguished after a high front vowel /i/ [2, 9]. However, no detailed acoustic studies have been conducted to investigate whether following front vowels affect the contrastiveness of dentals, retroflexes and palatals. We examined the acoustic characteristics of three Punjabi coronal onsets /t̪ ʈ tʃ/ produced before...

Two hypotheses were tested: 1) Increasing the overlap between a coronal and a following non-coronal can result in the coronal gesture being heard as reduced in magnitude. 2) This relation does not hold for a noncoronal followed by a coronal. Computational models were used to generate and "listen" to several tokens of the test sequences "bad ban" and "bab Dan," which varied in their combinations...