conclusion non-mass-like lesions, lesions with focal or segmental distribution, with a “plateau” enhancement curve type were the most frequent findings of dcis lesions on mri. background adequate diagnosis of ductal carcinoma in situ (dcis) could lead to efficacious treatment. due to the fact that dcis lesions can progress to invasive carcinomas and that the sensitivity of the standard examinat...

Meningiomas are common neoplasms of the meninges lining of the central nervous system. Deletions of 1p have been established as important for the initiation and/or progression of meningioma. The rationale of this array-CGH study was to characterize copy number imbalances of chromosome 1 in meningioma, using a full-coverage genomic microarray containing 2,118 distinct measurement points. In tota...

During the operation stage of cold region tunnels, isotropic surrounding rock in a freeze–thaw circle suffers long-term unidirectional cycles and gradually transforms into transversely material, which induces variation stress displacement distribution tunnels. Aimed at this phenomenon, an analytical solution mechanical response tunnels under circles induced by damage is proposed. The derived tw...

Brake lining atau kampas rem sangat penting perannya pada pesawat Cessna Grand Caravan 208B dalam mengontrol memberhentikan laju dari wheel pesawat. Dalam pengoperasian-nya brake selalu mengalami gesekan secara terus-menurus dengan disc sehingga menyebabkan material keausan, kekerasan berkurang, dan naiknya temperature drastis. Guna meningkatkan performa lining, maka ini akan diberi heat treatm...

BACKGROUND One prominent example of segmentation in vertebrate embryos is the subdivision of the paraxial mesoderm into repeating, metameric structures called somites. During this process, cells in the presomitic mesoderm (PSM) are first patterned into segments leading secondarily to differences required for somite morphogenesis such as the formation of segmental boundaries. Recent studies have...