نتایج جستجو برای: background enhancement

تعداد نتایج: 954606  

2017
Lydia Hohaus L. Hohaus

Background: Memory enhancement programs that can significantly improve actual memory performance and subjective perceptions of everyday memory in elderly people are rare. This study was designed to evaluate a new memory enhancement program incorporating principles of successful aging, designed to enhance subjective and objective everyday memory in community-dwelling old

2016
Yan Zhang Yu-kun Luo Ming-bo Zhang Jie Li Junlai Li Jie Tang

BACKGROUND The aim of this study was to investigate the accuracy of contrast-enhanced ultrasound (CEUS) enhancement patterns in the assessment of thyroid nodules. MATERIAL AND METHODS A total of 158 patients with suspected thyroid cancer underwent conventional ultrasound (US) and CEUS examinations. The contrast enhancement patterns of the lesions, including the peripheries of the lesions, were ...

2015
Jeff Wang Fumi Kato Noriko Oyama-Manabe Ruijiang Li Yi Cui Khin Khin Tha Hiroko Yamashita Kohsuke Kudo Hiroki Shirato Xiaobing Fan

OBJECTIVES To determine the added discriminative value of detailed quantitative characterization of background parenchymal enhancement in addition to the tumor itself on dynamic contrast-enhanced (DCE) MRI at 3.0 Tesla in identifying "triple-negative" breast cancers. MATERIALS AND METHODS In this Institutional Review Board-approved retrospective study, DCE-MRI of 84 women presenting 88 invasi...

Journal: :سیاست 0
شجاع احمدوند دانشیار گروه علوم سیاسی دانشکدة حقوق و علوم سیاسی دانشگاه علامه طباطبایی

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Journal: :E3S web of conferences 2021

It is one of the important means to ensure safety transmission line and its equipment realize rapid identification accurate diagnosis visual defect fault points line. In this paper, an adaptive infrared image enhancement algorithm proposed based on research features various algorithms. The first filters remove random noise improve signal-to-noise ratio image; then, histogram analysis image, ada...

Journal: :jundishapur journal of natural pharmaceutical products 0
zahra arab-bafrani disorder metabolic research center, faculty of medicine, golestan university of medical sciences, gorgan, ir iran; department of medical physics, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran alihossein saberi department of medical genetics, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of medical genetics, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9161133488, fax: +98-613332036 mohammad javad tahmasebi birgani department of medical physics, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran daryoush shahbazi-gahrouei department of medical physics and medical engineering, school of medicine, isfahan university of medical sciences, isfahan, ir iran mahdi abbasian department of biotechnology, college of agriculture, isfahan university of technology, isfahan, ir iran mehrafarin fesharaki department of cell sciences research center medical science, school of medicine, isfahan university of medical sciences, isfahan, ir iran

conclusions due to the significant reduction in the mean inactivation dose of colon cancer cells in the presence of gold nanoparticles, it seems that gnps are suitable options to achieve a new approach in order to improve radiotherapy efficiency without increasing the prescribed radiation dose. results cell survival in the presence of gnps was more than 90% and the maximum uptake of gnps was ob...

Journal: :international journal of high risk behaviors and addiction 0
esa jafari department of psychology, payam-e noor university, terhran branch, terhran, ir iran mohsen ahmadi department of psychology, islamic azad university, hamadan branch, hamadan, ir iran; department of psychology, islamic azad university, hamadan branch, hamadan, ir iran. tel: + 98-8114494155, fax: + 98-8114494155 ali mohammadzadeh department of psychology, payam-e noor university, east azerbaijan branch, ir iran mahmood najafi department of psychology, semnan university, semnan, ir iran

results the χ2 test showed that the experimental and control groups significantly differed in relapse rates (χ2 = 6.30, df = 1, p < 0.001). in addition, the covariance analysis showed a significant difference between the two groups in resiliency enhancement at post-test (f = 33.76, p < 0.001) and follow-up (f = 37.67, p < 0.001). conclusion the results indicate that lifestyle training is effect...

Journal: :iranian journal of radiation research 0
n. banaee department of engineering, science and research branch, islamic azad university, tehran, iran h.a. nedaie radiotherapy oncology department, cancer research center, cancer institute, tehran university of medical sciences, tehran, iran a.r. shirazi department of medical physics and biomedical engineering, faculty of medicine and radiation oncology research centre, cancer institute, tehran university of medical sciences, tehran, iran a.r. zirak laser and optics research school, nstri, tehran, iran s. sadjadi nuclear science and technology research institute, tehran, iran

background: new treatment modalities are developed with the aim of escalating tumor absorbed dose and simultaneously sparing the normal structures. the use of nanotechnology in cancer treatment offers some possibilities including destroying cancer tumors with minimal damage to healthy tissues. zinc oxide nanoparticles (zno nps) are wide band gap semiconductors and seem to have a good effect on ...

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