how to cite this article: shiari r, tabatabaei nodushan smh, mohebbi mm, karimzadeh p, javadzadeh m. moyamoya syndrome associated with henoch-schönlein purpura. iran j child neurol. autumn 2016; 10(4):71-74. abstract some reports have shown the association between moyamoya syndrome and autoimmune diseases. herewith, we present a 3.5 yr old girl with henoch- schönleinpurpura (hsp) who was treate...

the europeans consider roger bacon as the inventor of spectacles, and the 13th century, as the beginning of using lenses as spectacles. it can truly be said that the lenses had not been born all of a sudden then. it may be concluded that the lenses had been available long before that time.   we are all familiar with quartz, a transparent volcanic stone that begins its journey in the rivers afte...

how to cite this article: tabatabaei sm, seddighi a, seddighi as. posterior fossa tumor in children. iran. j. child. neurol 2012;6(2): 19-24.   objective primary brain tumors are the most common solid neoplasms of childhood, representing 20% of all pediatric tumors. the best current estimates place the incidence between 2.76 and 4.28/100,000 children per year. compared with brain tumors in adul...

in the retrospective investigation titled “risk factors evaluation of threshold retinopathy of prematurity” at a tertiary ophthalmic center in tehran, iran, the authors have studied 859 premature neonates during one year (2008-2009). 791 eyes have had retinopathy of prematurity (rop) and 7.4% of them presented threshold retinopathy (trop). the investigators aim has been to present and compare t...

|Full Text: PDF (5732 KB) 5. IEEE Std 802.11-1997 Information Technologytelecommunications And Information exchange Between Systems-Local And Metropolitan Area Networks-specific Requirements-part 11: Wireless Lan Medium Access Control (MAC) And Physical Layer (PHY) Specifications IEEE Std 802.11-1997 Volume , Issue , Date: 18 November 1997, Pages: i-445 Abstract |Full Text: PDF (25764 KB) 6. IE...

•Lamellar hydrogels are formed utilizing host-guest anion recognition in water•Selective hydrogelation the presence of iodide or perchlorate was demonstrated•Macrocyclic receptor used as a low molecular weight hydrogelator•Hydrogels released choline derivatives via cation metathesis Hydrogel materials that utilize chemistry for their formation have been extensively investigated cationic and neu...

Rotational energy has been a key element in many domestic and industrial areas from wristwatches to offshore wind turbines. It utilized on large scale megawatt-scale hydraulic power generators kilowatt-scale vehicles rotating machines, watt-scale hand-held tools, milliwatt (microwatt) rotational harvesters. The scope of this review is microwatt-level harvesters (millimeter centimeter size) that...