In 1975, E. R. Robinson conducted the hallmark study of the behavior of classical nova light curves before eruption, and this work has now become part of the standard knowledge of novae. He made three points; that 5 out of 11 novae showed pre-eruption rises in the years before eruption, that one nova (V446 Her) showed drastic changes in the variability across eruptions, and that all but one of ...

Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. [1] Northern temperate and high-latitude wetlands are a major source of the greenhouse gas methane (CH 4). Here, we estimate the sensitivity in the strengt...

Ambient seismic noise is characterized by randomness incurred by the random position and strength of the noise sources as well as the heterogeneous properties of the medium through which it propagates. Here we use ambient noise data recorded prior to the 1996 Gjálp eruption in Iceland in order to show that a reduction of noise randomness can be a clear short-term precursor to volcanic activity....

Plinian volcanic eruptions can inject a substantial amount of volcanic ash and gas into the stratosphere, which can present a severe hazard to commercial air traffic. A hazardous volcanic ash eruption was reported on April 14, 2010, and London’s aviation authority issued an alert that an ash plume was moving from an eruption in Iceland towards northwestern Europe. This eruption resulted in the ...

third molar eruption is an unpredictable event. occasionally, mandibular third molars undergo angular changes in young adults. this rotational drift is of unknown etiology, is not predictable and may facilitate the eruption or may make the impaction worse. a rare case is presented with severe rotational drift of a mesioangularly impacted mandibular third molar.

Background: Pregnancy-specific dermatoses represent a group of pruritic skin diseases unique to pregnancy and the most common types are polymorphic eruption of pregnancy and pemphigoid gestationis. It is difficult to obtain a histopathological diagnosis for polymorphic eruption of pregnancy and pemphigoid gestationis in the lack of immunofluorescence because of their similar clinical presentati...

The aim of the retrospective study was to evaluate the influence of the initial vertical position of the impacted maxillary incisor on spontaneous eruption frequency and timing after surgical removal of the supernumerary tooth. Records of 33 patients with unilateral impaction of upper central incisor caused by supernumerary teeth with the average age 9.58+/-1.54 years were analyzed. Impacted te...

[1] We present a model of effusive silicic volcanic eruptions which relates magma chamber and conduit physics to time‐dependent data sets, including ground deformation and extrusion rate. The model involves a deflating chamber which supplies Newtonian magma through a cylindrical conduit. Solidification is approximated as occurring at fixed depth, producing a solid plug that slips along its marg...

Background: Skin eruption is a disease that it is because of skin necrosis and adolescence and youth depression. The some species of Staphylococcuss are agent of this disease. There isn’t effective drug for curing of this disease. Many of medicinal plants (e.x. Stachys inflata Benth.) have anti- bacterial compounds and they can be used as a drug to cure skin eruption disease. Objective: This r...

A 65-year-old man had relapsed follicular lymphoma. When he suffered a fifth relapse, he received a regimen containing bendamustine and rituximab (BR). Four weeks later, he presented with systemic erythema, swelling and bullous lesions of lips, the oral cavity, andnasal mucosa and eye pain. He could not open his mouth and had severe pain. Steven–Johnson syndrome/toxic epidermal necrolysis was d...