نتایج جستجو برای: دستگاه ultrasound
تعداد نتایج: 139739 فیلتر نتایج به سال:
Physical drug delivery through smart nanocarrier and external stimulus could lead to significant improvements of drug potency as well as noticeable decrease in unwanted side effects. Currently, many external energy sources such as light, magnetic fields, ultrasound, ..., are under investigation as external stimulus for physical drug delivery. The purpose of this paper is to review most recent ...
results of the 133 breast lesions, 32 were malignant and 101 were benign. in the differentiation of benign and malignant lesions, conventional us resulted in sensitivity of 100 %, specificity of 43.0 %, ppv of 57.1 %, npv of 36.7 %, and accuracy of 100 %. regarding swe, the sensitivity, specificity, ppv, npv, and accuracy values based on emax were 84.4 %, 89.1 %, 71.1 %, 94.7 %, and 88.0 %, res...
background the relationship between biomarkers and imaging features is important because imaging findings can predict molecular features. objectives to investigate the relationship between clinicopathologic and radiologic factors and the immunohistochemical (ihc) profiles associated with breast cancer. patients and methods from december 2004 to september 2013, 200 patients (mean age, 56 years; ...
in this study, a novel magnetic nanocomposite (ba-α-bi2o3-γ-fe2o3) was successfully synthesized through a combination of ultrasound and co-precipitation method under mild conditions. the structure of the synthesized nano-composite as a visible light photocatalyst was investigated by the xrd, tem, hrtem, uv-vis and ft-ir. the hrtem confirmed that the nano-magnetic composites are rods with diamet...
in this study formation and properties of o/w emulsion stabilized by a mixture of sodium caseinate (2, 5 and 10 wt %) and non-ionic emulsifier tween 80, sorbitan mono-9-octadecenoate, (0, 0.5, 1 and 1.5 wt %) were investigated at various ph values(3, 5 and 7) and calcium ion concentrations (0, 0.2, 0.4 and 0.6 wt%). emulsion samples were prepared by using a sonicator with a nominal power output...
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nowadays the researches have indicated the fact that using synthetic antioxidants as food additives in edible oils can have adverse effects on human health. so preparing antioxidation resources for reduction of oxidation stress effects is important. the aim of this project was, representing a natural antioxidant source with frap test. the present study optimized the ultrasound assisted extracti...
restrictions on the use of synthetic antioxidant such as butylated hydroxyanisole (bha) and butylated hydroxytoluene (bht) are being imposed because of their carcinogecity. in this investigation optimization of phenolic extraction process frome methanolic (80%) extract (v/v) of elaegnus angustifolia through response surface methodology by fulin cio- calteu is performrd for op...
the effect of low-intensity pulsed ultrasound stimulation on neonate mouse spermatogonial stem cells
objective: this study presents an efficient, cost-effective method to improve proliferation and colonization of spermatogonial stem cells (sscs) in vitro. methods: isolated sscs from neonate mice were cultured in dmem culture medium with 10% fetal bovine serum (fbs). in the first phase of the study, the temperature was controlled by low intensity pulsed ultrasound stimulation (lipus) of the pla...
background in stable patients with blunt abdominal trauma, accurate diagnosis of visceral injuries is crucial. objectives to determine whether repeating ultrasound exam will increase the sensitivity of focused abdominal sonography for trauma (fast) through revealing additional free intraperitoneal fluid in patients with blunt abdominal trauma. patients and methods we performed a prospective obs...
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