A vortex close to a no-slip wall gives rise to the creation of new vorticity at the wall. This vorticity may organize itself into vortices that erupt from the separated boundary layer. We study how the eruption process in terms of the streamline topology is initiated and varies in dependence of the Reynolds number Re. We show that vortex structures are created in the boundary layer for Re aroun...

Entrainment of air by turbulent mixing plays a central role in the dynamics of eruption clouds; the amount of entrained air controls eruption styles and heights of eruption columns. The efficiency of entrainment is quantified by the entrainment coefficient: the ratio between mean inward radial velocity at the edge and the mean vertical velocity. We directly determined the entrainment coefficien...

Solar eruptions are well-recognized as major drivers of space weather but what causes them remains an open question. Here we show how an eruption is initiated in a non-potential magnetic flux-emerging region using magnetohydrodynamic modelling driven directly by solar magnetograms. Our model simulates the coronal magnetic field following a long-duration quasi-static evolution to its fast erupti...

[1] Low growth rates of atmospheric CO2 were observed following the 1991 Pinatubo (Luzon) volcanic eruption. One hypothesis for this CO2 anomaly is that since diffuse light is more efficiently used by forests than direct light, the increase in the diffuse fraction of sunlight due to scattering by volcanic sulfur aerosol in the years following the eruption substantially increased forest net prim...

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...

Fixed drug eruption (FDE) is a distinctive type of cutaneous drug reaction that characteristically recurs in the same locations upon re exposure to the offending drug. It is responsible for about 10% of all adverse drug reactions. Medications inducing fixed drug eruptions are usually those taken intermittently. Common drugs causing fixed drug eruptions are fluconazole, ciprofloxacin, doxycyclin...

Kaposi's varicelliform eruption is a cutaneous eruption caused by the herpes simplex virus and a few other viruses that infect persons with pre-existing dermatosis such as atopic dermatitis. We report the case of a 56-year-old man who was treated with the mammalian target of rapamycin inhibitor, everolimus, for metastatic renal cell carcinoma. He presented with painful, umbilicated vesicles and...

BACKGROUND Pityriasis rosea is a self-limited inflammatory condition of the skin that mostly affects young adults. Several less common atypical presentations have been reported. CASE PRESENTATION A 6-year old girl with red-brown maculopapular eruption sized 0, 5-1 cm in diameter localized on neck, trunk and popliteal region visited our general pediatric outpatient clinic. The eruption was wid...

INTRODUCTION Fluconazole is a widely used antifungal agent with a possible side effect of fixed drug eruption. However, this adverse drug effect is absent from the reported list of possible side effects of fluconazole. We are presenting a rare case in our report. CASE PRESENTATION A 25-year-old Iranian woman developed fixed drug eruptions on different sites of her body after taking five doses...

Ferrous fumarate Pustular drug eruption Acute generalized exanthematous pustulosis Generalized pustular psoriasis Aoi Iti, MD, Department of Dermatology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki 036 (Japan) Although ferrous agents are commonly used clinically, they rarely induce allergic skin eruptions. Moreover, drug eruptions of the pustular type are uncommon and include ...