Radiographic imaging of magma dynamics in a volcanic conduit provides detailed information about ascent and descent of magma, the magma flow rate, the conduit diameter and inflation and deflation of magma due to volatile expansion and release. Here we report the first radiographic observation of the ascent and descent of magma along a conduit utilizing atmospheric (cosmic ray) muons (muography)...

A simple method of treating an ectopically erupting first permanent molar is presented which utilizes both a molar band with helical finger springs cemented to a second primary molar, and a curved tag of composite resin which is acid-etched to the occlusal surface of the affected first permanent molar. When activated and placed into proper position, the springs act at right angles to the long a...

As the July presidential election nears, analysts and investors are growing more vocal about whether Mexico might once again be rocked by a major economic crisis, as has been the case at the close of each six-year presidential term since 1976. According to Goldman Sachs, the probability of Mexico facing a currency crisis in the near future has increased by one-third during the past two months. ...

The purpose of the interceptive orthodontic treatment is to eliminate or reduce the need for treatment in the permanent dentition. The major advantage of such a treatment may also be that it is technically simple and relatively cheap, compared to comprehensive treatment with full fixed appliances. The need for interceptive measures to avoid adverse occlusal and dental consequences, which are ef...

.............................................................2 INTRODUCTION.....................................................2 BACKGROUND OF DEVELOPMENT OF INDUSTRIAL –USE-UNMANNED HELICOPTERS........................................................2 PROTOTYPE MODEL OF 'RCASS' COUNTERREVOLUTION DUAL-ROTOR HELICOPTER ....3 DEVELOPMENT OF FIRST MODEL 'R50' ..........3 ATTITUDE CONTROL DEVICE,' ...

An underwater glider with an acoustic data logger flew toward a recently discovered erupting submarine volcano in the northern Lau basin. With the volcano providing a wide-band sound source, recordings from the two-day survey produced a two-dimensional sound level map spanning 1 km (depth) × 40 km(distance). The observed sound field shows depth- and range-dependence, with the first-order spatia...

Lithium Metal Batteries In article number 2202206, Jianan Wang, Wei Yan, and co-workers discuss the intractable uncontrollable safety issues, like thermal runaway dendrite growth (represented by erupting volcano rugged terrain) in operation of lithium metal batteries (LMBs). The presented thermally stable dendrite-resistant separators road) provide a safe choice for LMBs to operate under extrem...

The primary aims of orthodontic treatment in the mixed dentition are to correct dental arch discrepancies, occlusal and jaw relation abnormalities, and to eliminate functional inteferences—in essence, preventive or interceptive orthodontics. Pediatric dentists should be trained and able to assist their patients if needed. Sequelae to trauma to primary incisors includes: defects in texture, malp...

Two lines of observational evidence are used to infer that the MHD helical kink instability is associated with solar eruptions. The sense of twist and writhe are determined in images of 7 erupting filaments obtained at 10830 Å, 1600 Å, 195 Å and 171 Å. In every case the sense of twist is the same as the sense of writhe, as required for a kink. From images in the soft X-ray and EUV spectrum, mea...

A Traumatic dental injuries most often occur in childhood and early adolescence. The most serious of these injuries is complete tooth avulsion. The incidence of avulsion is greatest for the maxillary central incisors and usually occurs when they are erupting between the ages of 7 and 10 years. A critical decision for the dentist at this time is whether to replant the avulsed tooth. There are ma...