introduction: an otogenic brain abscess is a common ent problem but an otogenic trapezius abscess can also be experienced in otolaryngological practice, particularly in patients with chronic suppurative otitis media.   case report: we report a rare case of a trapezius abscess in an eight-year-old girl who presented at the ent, head and neck surgery postgraduate medical institute, lady reading h...

malignant germ-cell tumors (mgct) are rare tumors of childhood accounting for less than 3% of pediatric malignancies. endodermal sinus tumor (est) forms the most common histologic subtype of mgct. the vagina is an extremely rare site for gcts. an 8-month-old female was admitted with a short history of vaginal bleeding, and a mass protruding from the vagina. she was pale and a mass was palpable ...

concentrations of 42 trace elements, including rare earths, in croatian thermal waters wereinvestigated. originating from different parts of croatia, i.e. different types of aquifers, studied thermal watersprovide insight into the range of concentrations of broad spectrum of elements in croatian thermal waters.covering a wide range of temperature (30 - 92 °c), studied thermal waters are general...

introduction: the prevalence of rare bleeding disorders, including combined factor v+viii deficiency are higher in iran than in developed countries. there are only a few reports which have been written concerning kidney transplantation in the patients suffering from these disorders. case report: a 22-year old girl, with a known case of combined factor v+viii deficiency, a history of bladder sto...

spontaneous adrenal hematoma is a very rare condition and its prevalence has been reported to be about 1% in previous studies. although various causes have been proposed to explain its incidence in existing case reports, the etiology and pathology of this condition is still not known. the present study presents a case of spontaneous adrenal hematoma in a pregnant 31 year old woman without histo...

background: the most common polymorphisms identified in the methylenetetrahydrofolate reductase (mthfr) gene, c677t and a1298c lead to defective activity of this enzyme and increase the risk of venous and arterial thrombosis. there are limited investigations regarding the effects of thrombogenic polymorphisms on the clinical phenotypes of rare hereditary hemorrhagic disorders like glanzmann's t...

biglar permo-triassic bauxite deposit is located in ~15 km northwest of abgarm, southwest of ghazvin province, west of central iran. it consists of 8 stratiform and discontinuous bauxite lenses lying along the contact of ruteh (permian) and elika (triassic) carbonate formations. petrographically, the bauxite ores exhibit collomorphic-fluidal, pseudo-breccia, pseudo-porphyritic, panidio-morphic-...

this study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (ree) recoveries from iron mine waste. the electron microprobe showed that high amoun...

It has been claimed that corpus-based TTS is unworkable because it is not practical to include representative units to cover all or most of the combinations of segments and prosodic characteristics found in general texts, a problem characterized as Large Numbers of Rare Events (LNRE). We argue that part of this problem is in its formulation, and that a closer look, including investigations into...

Large Deviations is a branch of probability theory that deals with rare events. It is a very active field with applications to several areas including statistics, communication networks, computing, statistical physics, and mathematical finance. (For an example of a rare event, consider the problem of species sampling: suppose that one wishes to determine the species of fish native to a body of ...