background: to determine the most important preoperative factors that affect postoperative coronal parameters of scoliotic curves.   methods: all adolescent idiopathic scoliosis (ais) patients included in the study were classified according to lenke and king classification. the fusion levels were selected according to the rigidity of the existing curves (correction less than 50%), tilt of t1 an...

AIM To describe the application of GT files in roots with abrupt curvatures. SUMMARY Most dentists interpret obstructions to instrument progress as calcification, rather than abrupt curvature. Basically, there are not any apically calcified canals, only clinicians who are not clever enough or patient enough to sneak to patency. Dentists should be on their guard and sensitive to the 'rubber ba...

The angular momentum evolution of cool stars during the pre-main sequence phase of stellar evolution remains a major outstanding problem. Multiple processes are likely involved in the transfer of mass and angular momentum within and out of the star+disk system. The role of coronal mass ejections (CMEs), energetic events which shed mass and magnetic flux in the Sun, has yet to be fully explored ...

Here we report on the VLBI discovery of solar-like extended streamers anchored on the two weak-line T Tauri stars of the binary system V773 Tau A. Covering the interbinary distance the ∼ 20 stellar radii extended streamers enter in collision during each stellar rotation with consequent occurrence of magnetic reconnection. Thermal electrons confined in the streamers become accelerated to relativ...

introduction: coronal leakage seems to play an important role in the failure of endodontic treatment. a double seal over root canal filling has been suggested as a means of improving the coronal seal. several restorative materials have been used in an attempt to produce a coronal barrier. the purpose of this study was to assess gray-coloured mineral trioxide aggregate (gmta), white-coloured min...

apert syndrome is a congenital craniosynostosis syndrome comprising of bilateral coronal synostosis , symmetric syndactyly of hands and feet and midface hypoplasia. we present an atypical phenotype of this syndrome with right sided unilateral coronal synostosis. however, type i apert hand and other clinical and radiological features suggestthe diagnosis. genetic analysis revealed an absence of ...

Introduction: The study aimed to discuss the diagnosis and treatment of a six years old boy with severe pre-eruptive caries preservation pulp vitality after surgical exposure in permanent mandibular molar. Pre-eruptive intra coronal are often an accidental lesion as radiolucent finding dentin tooth which did not erupted into oral space. However, modality is still reported systematically. Case P...

Before the onset of a flare is observed in hard X-rays there is often a prolonged pre-flare or pre-heating phase with no detectable hard X-ray emission but pronounced soft X-ray emission suggesting that energy is being released and deposited into the corona and chromosphere already at this stage. This work analyses the temporal evolution of coronal source heating and the chromospheric response ...

Exercise presents a considerable stress to the pulmonary system and ventilation-perfusion (Va/Q) heterogeneity increases with exercise, affecting the efficiency of gas exchange. In particular, prolonged heavy exercise and maximal exercise are known to increase Va/Q heterogeneity and these changes persist into recovery. We hypothesized that the spatial heterogeneity of pulmonary perfusion would ...

A simple, yet powerful, algorithm for computed tomography of the solar corona is demonstrated using synthetic EUV data. A minimum of three perspectives are required. These may be obtained from STEREO/EUVI plus an instrument near Earth, e.g. TRACE or SOHO/EIT. Subject headings: methods: data analysis — Sun: corona — techniques: image processing