let $m$ be a right module over a ring $r$, $tau_m$ a preradical on $sigma[m]$, and$ninsigma[m]$. in this note we show that if $n_1, n_2in sigma[m]$ are two$tau_m$-lifting modules such that $n_i$ is $n_j$-projective ($i,j=1,2$), then $n=n_1oplusn_2$ is $tau_m$-lifting. we investigate when homomorphic image of a $tau_m$-lifting moduleis $tau_m$-lifting.

introduction: maxillary osteomyelitis is a rare phenomenon. if it occurs, evaluation for underlying disease especially osteopetrosis must be considered. osteomyelitis occurs as a complication in 10% of the cases of osteopetrosis. case report: this is a case report of maxillary osteomyelitis presented in a 15-year old boy with osteopetrosis.  in this case, the disease represented mainly with fac...

background: hereditary angioedema (hae) is a rare autosomal dominant primary immunodeficiency with complement system defect characterized by recurrent episodes of angioedema involving the skin or mucosa of the upper respiratory and gastrointestinal tracts. objective: to characterize the clinical and laboratory data of hereditary angioedema in iran. methods: patients with probable diagnosis of a...

hereditary spastic paraplegias are highly heterogeneous neurodegenerative disorders with some special mutations. we report on a patient with pescavus, distal a myotrophy, hyper extended fingers, and pectus excavatum. neurological examination showed that he had proximal lower limbs weakness with a positive gower sign, exaggerated lower limbs deep tendon reflexes with spasticity, distal muscle wa...

objective hereditary spastic paraplegia (hsp) is a degenerative disease of genetic origin affecting the corticospinal tracts in the spinal cord. there are three forms of inheritance: autosomal dominant hsp, autosomal rececive hsp and x-linked hsp. this disease is characterized by progressive spasticity of leg muscles with varying degrees of stiffness and weakness of other muscle groups. in this...

abstract background: hereditary red cell enzyme disorders are a group of non-immune/spherocytic hemolytic anemia, although these disorders are rare and they have not public health problems, the detection of these defects could help to physician in treatment and differential diagnosis. this study evaluated 5 enzymopathies in patients with hereditary non –immune/spherocytic hemolytic anemia (hnsh...

background: intrauterine growth retardation (iugr) contributes significantly to fetal morbidity and mortality, but its etiology is unknown in most cases. objective: the aim of this study was to examine the association between inherited thrombophilia and iugr. materials and methods: a case-control study was performed in a tertiary referral center (afzalipour hospital) over 2-years period (2010-2...

approximately 5-10% of all thyroid cancers are medullary thyroid carcinomas (mtc). mtc is mainly sporadic in nature, but 20-30% of cases are hereditary. genetic testing for hereditary mtc is very important for the patient and his family, but the patients must be receiving appropriate genetic counseling. about 98% of patients with hereditary mtc have germline mutations in exons 10, 11, 13, 14, 1...

‎Let $C$ be a semidualizing module‎. ‎We first investigate the properties of‎ ‎finitely generated $G_C$-projective modules‎. ‎Then‎, ‎relative to $C$‎, ‎we introduce and study the rings over which‎ ‎every submodule of a projective (flat) module is $G_C$-projective (flat)‎, ‎which we call $C$-Gorenstein (semi)hereditary rings‎. ‎It is proved that every $C$-Gorenstein hereditary ring is both cohe...

symptomatic mullerian duct cysts are uncommon. a young adult male presented to us with a palpable supra-pubic mass, pain and lower urinary tract symptoms. initial imaging modalities showed a large cystic lesion in the pelvis with a non-visualized right kidney. a short, blind ending right ureter on retrograde pyelography added to the confusion. on exploration, the lesion was noted to be separate...