we discuss here an uncommon condition of neurogenic hypotension in the context of immunoglobulin light chain (amyloid light-chain) amyloidosis. th e most serious feature was autonomic nervous system impairment, mainly characterized by severe refractory orthostatic hypotension, which became progressively invalidating, forcing the patient to bed. moreover, since the systemic involvement of the di...

how to cite this article: fallah r, yadegari y, salmani nodushan m. efficacy and safety of intravenous sodium valproate in convulsive status epilepticus in children in shahid sadoughi hospital. iran. j. child. neurol 2012;6(2):39-44.   objective status epilepticus (se) is the most common pediatric neurologic emergency with high mortality and morbidity. there is no consensus on the drug of choic...

Tungsten belongs to group of refractory metal that possess extraordinary resistance heat and wear it is the heaviest engineering material. Because its properties tungsten used for special purposes. This paper presents results mechanical microstructure research on example characteristic heavy alloys 91W-6Ni-1.8Fe-1Co 93W-5Ni-1.6Fe-0.3Co with different Ni/Co ratios. The proper ratio important obt...

Introduction: Isheyevo is a metal-rich carbonaceous chon-drite with metal-rich and metal-poor lithologies that are most similar to the CBb and CH chondrites, respectively [1]. All consist of similar components – Fe,Ni metal, chondrules, refractory inclusions, amoeboid olivine aggregates and heavily hydrated lithic clasts. We continued our investigation of these components of Isheyevo and found ...

Refractory-metal-based alloys are a potential replacement of current nickel-based superalloys due to their excellent mechanical strength at extremely high temperatures. However, severe oxidation in high-temperature working environment limits application. To address this challenge, two-step coating process (including Mo precoat and Si-B pack cementation) was applied an innovative refractory mult...

Introduction: CH chondrites are metal rich, fine-grained meteorites that have undergone relatively little thermal metamorphism [1]. Meibom et al. [2] proposed that the radially zoned metal grains found in CH and also in some CB chondrites recorded the formation of these grains by condensation of metal in the solar neb-ula. This conclusion was based on measured profiles of the minor elements Ni,...

multiple myeloma (mm) characterized by proliferation of plasma cells in bone marrow and production of monoclonal immunoglobulin's. recently, arsenic trioxide (ato), has been considered for treatment refractory mm. we assessed the safety and efficacy of ato for patients with refractory mm. a phase 2, study of arsenic trioxide was conducted in 12 mm patients, whose refractory to two standard ther...

Chromium is a heavy metal used for various applications such as in the manufacture of stainless steels, chemicals wood treatment, tanneries, and refractory industry. The main problem associated with use chromium these activities considerable volume contaminated effluent that requires mainly due to its high mobility toxicity hexavalent form. Immobilization methods arise an efficient solution tre...

We have found that the mouse metallothionein-I (MT-I) gene promoter functions in an unusual, compound manner. It directs both TATA-dependent and TATA-independent modes of transcription in vivo. The TATA-dependent message is initiated at the previously characterized +1 transcription start site and is the predominant species in most tissues. In many cell types it is metal inducible. The TATA-inde...