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教育研究的范式创新:形成性介入的理论基础、实践策略与方法论意义 被引量:3
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作者 魏戈 《教育学报》 CSSCI 北大核心 2023年第2期16-28,共13页
致力于变革的形成性介入方法尝试超越教育研究中理论与实践的二分。源于苏俄文化历史学派的传统,以文化—历史活动理论和拓展性学习理论作为学理基础,形成性介入的实践策略体现为变革实验室中的九个介入元素和六个介入环节。以大学青年... 致力于变革的形成性介入方法尝试超越教育研究中理论与实践的二分。源于苏俄文化历史学派的传统,以文化—历史活动理论和拓展性学习理论作为学理基础,形成性介入的实践策略体现为变革实验室中的九个介入元素和六个介入环节。以大学青年教师教学发展项目为例,形成性介入的方法引导研究者与实践者在介入过程中共同讨论、检验、实施与反思,在研究者与实践者协同的拓展性学习活动中,重构了大学青年教师对教学的认识并开发了提高教学效能的有效工具。形成性介入之于教育研究的方法论意义在于,从数据到行动、从经验到理论、从个体到集体的转型,进而通过实践的改变、概念的形成以及参与者主体性的创生,直指理论性抽象的变革潜力,成为教育研究的一种范式创新。 展开更多
关键词 形成性介入 方法论 文化—历史活动理论 拓展学习 变革实验室
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Interventional treatment for symptomatic acute-subacute portal and superior mesenteric vein thrombosis 被引量:21
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作者 Feng-Yong Liu Mao-Qiang Wang Qing-Sheng Fan Feng Duan Zhi-Jun Wang Peng Song 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第40期5028-5034,共7页
AIM: To summarize our methods and experience with interventional treatment for symptomatic acute-sub-acute portal vein and superior mesenteric vein throm-bosis (PV-SMV) thrombosis. METHODS: Forty-six patients (30 male... AIM: To summarize our methods and experience with interventional treatment for symptomatic acute-sub-acute portal vein and superior mesenteric vein throm-bosis (PV-SMV) thrombosis. METHODS: Forty-six patients (30 males, 16 females, aged 17-68 years) with symptomatic acute-subacute portal and superior mesenteric vein thrombosis were ac-curately diagnosed with Doppler ultrasound scans, com-puted tomography and magnetic resonance imaging. They were treated with interventional therapy, including direct thrombolysis (26 cases through a transjugular intrahepatic portosystemic shunt; 6 through percutane-ous transhepatic portal vein cannulation) and indirect thrombolysis (10 through the femoral artery to superior mesenteric artery catheterization; 4 through the radial artery to superior mesenteric artery catheterization). RESULTS: The blood reperfusion of PV-SMV was achieved completely or partially in 34 patients 3-13 d after thrombolysis. In 11 patients there was no PV-SMV blood reperfusion but the number of collateral vessels increased signif icantly. Symptoms in these 45 patients were improved dramatically without severe operationalcomplications. In 1 patient, the thrombi did not respond to the interventional treatment and resulted in intestinal necrosis, which required surgical treatment. In 3 patients with interventional treatment, thrombi reformed 1, 3 and 4 mo after treatment. In these 3 patients, indirect PV-SMV thrombolysis was performed again and was successful. CONCLUSION: Interventional treatment, including direct or indirect PV-SMV thrombolysis, is a safe and effective method for patients with symptomatic acutesubacute PV-SMV thrombosis. 展开更多
关键词 Portal thrombosis Superior mesenteric vein thrombosis THROMBOLYSIS Interventional treatment
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