نتایج جستجو برای: gastroesphageal junction
تعداد نتایج: 51164 فیلتر نتایج به سال:
background: recent researches have led to find strategies to prevent relapse and to improve survival for gastric cancer patients, including preoperative neo-adjuvant approaches. however, the efficacy of some neo-adjuvant regimens including 5-fluorouracil, cisplatin, and docetaxel have been less investigated. the present study evaluated the outcome and mid-term survival of patients with gastric ...
In this paper, the purpose is to improve the efficiency of triple-junction solar cell by introducing quantum well into GaAs junction. Firstly, InGaP/GaAs/InGaAs triple-junctions solar cell has been simulated. Then, a multiple stepped quantum wells (MSQWs), in which InGaAs well is sandwiched by InGaAsP as stepped layer, and the barrier is GaAs, has been introduced into intrinsic region of single...
We study tunneling conductance of a graphene based normal metal-insulator-superconductor (NIS) junction with Corbino disk structure. Solving Dirac-Bogolioubov- De Gennes (DBdG) equation in different regions of the junction and employing scattering approach we obtain normal and Andreev reflection coefficients of the junction. Using Blonder-Tinkham-Klapwijk (BTK) formula we calculate tunneling co...
uretero pelvic junction (upj) obstruction is a common cause of hydronephrosis in infants. the frequent use of fetal ultrasound is allowing early (prenatal) diagnosis of numerous uropathies previously delayed until the child either became symptomatic or had a palpable mass. newborn with severe obstruction often has marked improvement following correction, therefore, early diagnosis and operation...
background: this study aimed to investigate the pedicle dimension and angulation in cervicothoracic junction (ctj) using the findings of computed tomographic (ct) to help accurate insertion of pedicular screw. methods: forty three patients with high quality ct images of ctj were evaluated. pedicle width (pw), pedicle height (ph), pedicle axis length (pal), transverse angle (ta) and sagittal ang...
conclusions the severity of pathological changes in renal parenchyma, due to upjo, is a good predictor of renal function recoverability, after pyeloplasty. the orus, with drf > 35%, usually have normal (grade i) renal biopsy and might be expected to present better functional recoverability after pyeloplasty. results this study showed a linear relationship between the severity of histological ch...
statement of the problem early detection of periodontal disease and distruction is important for prevention of further destruction of the tissues. we carried out this study to determine the normal cement enamel junction (cej) to alveolar bone crest (abc) distance in the interproximal area of primary molars on bitewing (b. w) radiographs in healthy 7-9 year old girls living in hamadan, iran. mat...
varicose veins are an extremely common medical condition (present in 5-30% of adults). surgery remains the gold standard of care in patients with varicose veins, however several newer interventions have been recently introduced which need to be evaluated. during the standard surgery it is imperative to demonstrate and ligate the tributaries of the saphenofemoral junction in combination with str...
it was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (ap). it seems that some other types of mechanisms must be involved in ap propagation. in this article, we...
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