cyclohexylidine-ammonium-2-aminocyclohexyline-l-cyclohexee-l- dithiocarboxylate (cccd) is employed for the gravimetric determination of ni (ii). in neutral or ammoniacal solutions, the metal forms a violet precipitate with the reagent which can be weighed as ni (c13h18ns2)a2f ter drying at 115 - 120?c using this procedure, the nickel content of steel samples can also be determined accurately. t...

this report presents a case of vertebral artery dissection (vad), which was misdiagnosed as cerebrovascular accident (cva) in initial examinations.in this case, a 33-year old woman, who was involved in a car accident, was referred to khoy legal medicine centre by traffic court two months after the accident.the patient was examined by the author, who was on an assignment at the centre.at this ti...

t cells have been identified as key players in the pathogenesis of type 1 diabetes. however, the exact role of t-cell subpopulations in this pathway is presently unknown. the purpose of this study was to assess the expression pattern of two lineage-specifying transcription factors gata - 3 and t - bet , which are important in t helper type 1 (th1) and th2 cell development , respectively. gene e...

ankylosing spondylitis (as) is an inflammatory arthritis, which affects mainly spine and sacroiliac joints. according to recent studies, erap1 is the second most common candidate gene for  as susceptibility after hla-b27. the  aim of this study was to  determine the association of erap1 gene polymorphisms with as in iranian population. the study group comprised 387 iranian as patients and 316 h...

in an earlier work we showed that for ordered fields f not isomorphic to the reals r, there are continuous 1-1 unctions on [0, 1]f which map some interior point to a boundary point of the image (and so are not open). here we show that over closed bounded intervals in the rationals q as well as in all non-archimedean ordered fields of countable cofinality, there are uniformly continuous 1-1 func...

the apoptotic protease-activating factor 1 (apaf-1) receives the death signal in the intrinsic ormitochondrial pathway of apoptosis. upon the releasing of cytochrome c from theintermembrane space of mitochondria and binding to apaf-1 molecules, a heptamericapoptosome complex is formed and triggers the downstream cascade of caspases. here, for thefirst time we present spontaneous mutations and r...

energy-based optimized design of polymer fiber-reinforced tunnel lining mohammad safi                   analysis of underwater tunnels considering strain-softening behavior in plastic zone ahmad fahimifar; hamed ghadami; masoud ahmadvand; arvin abdolmaleki                                 the effect of operational parameters on penetration rate of a tbm using artificial neural networks- a case s...