developmental midline perinasal masses in children are rare lesions specifically in association with choristomas. we encountered a 3-year-old boy with epiphora, a striking mass on the nasal bridge and ipsilateral nasal hypoplasia. ct scan imaging showed multiple calcified areas within the tumor in addition to linear defect in frontal bone, hypoplastic left ethmoidal sinus and left nasal cavity,...

malaria has reemerged in northern borderline of iran after the collapse of former soviet :union:. there have been several reports of malaria epidemics in azerbaijan and ardebil provinces of iran. the anopheles maculipennis complex is assumed to play an important role in malaria transmission in these regions. for the first time in iran, a diagnostic character in 4th instar larvae, i.e. seta 2 (a...

here, we report the synthesis of a schiff-base mixed-ligand complex of cadmium(іі) in bulk and nano-scales via the precipitation and sonochemical methods, respectively. the complex formula is [cd(3-bpdh)(3-bpdb)cl2]n (1), where the ligands are 3-bpdh = 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene and 3-bpdb = 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene. the structure of mixed-ligand complex (1) wa...

background : the aim of this study was to design pictorial key and taxonomic literature of culex pipiens complex in iran. methods: larvae were collected using standard dipping methods in 13 randomly selected areas of bushehr, hame­dan, kerman, khorasan-e-razavi, khuzistan, mazandaran, tehran, sistan and baluchistan and yazd provinces from april 2009 to october 2010. the data were analyzed using...

many studies suggested that fractals could be brought in any structural anarchy, such as cancers, for diagnosis and prognosis evaluation by quantifying it and expressing it in terms of fractal geometry. in this study, we aimed to evaluate pathologic grades or breast carcinomas by fractal analysis. this cross-sectional study was performed on 60 women with breast ductal carcinoma. from all the pa...

complex vertebral malformation(cvm) isanautosomal recessivehereditarydisorder caused bya point mutation in position 559 inexon 4 of the slc35a3 gene on chromosome 3 inholstein dairy cattle.this mutationchanges the function of uridine 5-diphosphate-n-acetylglucosamine transporter protein bythe substitution of valine for phenylalanine at position 180 of this protein. the disease causes premature ...

objective: bacillus cereus (b. cereus) is a gram-positive, spore-forming bacteria widely distributed in the environment. this bacteria is an opportunistic human pathogen that can cause diarrheal and emetic types of food poisoning. the diarrhea type of food poisoning can be caused by hemolysin bl (hbl), non-hemolytic (nhe), and cytotoxin k enterotoxins. rice is commonly contaminated with b. cere...

using uv-vis spectrophotometric method, the formation constant for interaction of fe2+(aq) ion with l-alaninewas experimentally studied at ph = 4.1 ± 0.01 (50mm of potassium hydrogen phthalate buffer), ionic strengthof 0.1m potassium nitrate and at 5 different temperatures 15,20, 25,30 and 35 t. the optical absorption spectraof mixtures containing considered cation and l-alanine were analyzed b...

in this commentary the findings from a systematic review that concluded there is no compelling evidence to suggest that implementing complicated, multi-faceted interventions is more effective than simple, single component interventions to changing healthcare professional’s behaviour are considered through the lens of harvey and kitson’s editorial. whilst an appealing conclusion, it is one that ...