نتایج جستجو برای: سوپرآلیاژ gtd
تعداد نتایج: 497 فیلتر نتایج به سال:
Background and Aim. EUS-guided transmural drainage (EUS-GTD) is now considered a minimally invasive and effective alternative to surgery for drainage of symptomatic pancreatic pseudocysts. However, the technique is rather difficult, and sometimes serious complications occur to patients undergoing this procedure. We retrospectively evaluated efficacy, safety, and long-term follow-up results of E...
randomised non-inferiority trial and meta-analysis. Lancet 2010; 375: 555–562. 4 Creinin MD, Schlaff W, Archer DF, Wan L, Frezieres R, Thomas M, et al. Progesterone receptor modulator for emergency contraception: a randomized controlled trial. Obstet Gynecol 2006; 108: 1089–1097. 5 von Hertzen H, Piaggio G, Ding J, Chen J, Song S, Bártfai G, et al; WHO Research Group on Postovulatory Methods of...
PURPOSE To describe the diffusion-weighted imaging (DWI) appearance of gestational trophoblastic disease (GTD) and to determine its apparent diffusion coefficient (ADC) values. To evaluate the feasibility of DWI to predict progression of hydatidiform mole (HM) to persistent disease. METHODS During a period of 6 months, women with preliminary diagnosis of GTD, based on ultrasound and ßhCG leve...
background: gestational trophoblastic disease (gtd) defines a heterogenenous group of interrelated lesions that arise from the trophoblastic epithelium of the placenta. there are several histologically distinct types of gtd: hydatiform mole (complete or partial), persistant/invasive gestational trophoblastic neoplasia (gtn), choriocarcinoma and placenta site trophoblastic tumors. the aim of thi...
یکی از مباحثی که در سوپرآلیاژها مورد بحث و توجه قرار می گیرد، رشد و درشت شدن ذرات گاما پرایم در مدت زمان های طولانی در دماهای بالا است. اصلی ترین تئوری کلاسیکی که رفتار درشت شدن رسوب را توضیح می دهد، تئوریlsw است. در این تحقیق سینتیک درشت شدن رسوب گاما پرایم در سوپرآلیاژ پایه نیکل gtd-111 در دو سیکل با دو ریزساختار متفاوت مورد بررسی قرار گرفت. در ابتدا تمام نمونه ها تحت عملیات حرارتی انحلال کام...
Reinforcement learning (RL) is an essential tool in designing autonomous systems, yet RL agents often require extensive experience to achieve optimal behavior. This problem is compounded when an RL agent is required to learn policies for different tasks within the same environment or across multiple environments. In such situations, learning task models jointly rather than independently can sig...
Gestational Trophoblastic Disease (GTD) in Latin America (LA) has a wide range of presentation and management, depending on socioeconomic, political and geographic variables [1,2,3]. Thus, while some referral centers have sophisticated methods for an early and accurate diagnosis and treatment, still there are a high number of patients admitted with a late Hydatidiform Mole (HM) or advanced Gest...
Gestational trophoblastic disease (GTD) comprises a spectrum of interrelated diseases including partial and complete molar pregnancy and choriocarcinoma with varying propensity for invasion and metastasis [1—4]. Despite the presence of widespread metastases, persistent gestational trophoblastic neoplasia (GTN) is highly curable with chemotherapy [2—6]. However, psychological shock is anticipate...
BACKGROUND Gestational Trophoblastic Disease (GTD) is a heterogeneous group of diseases that includes partial and complete hydatidiform mole, invasive mole, choriocarcinoma and placental site trophoblastic tumour. The incidence of GTD varies in different parts of the world. The malignant potential of this disease is higher in South East Asia in comparison to western countries. Objectives of stu...
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