Results 21 to 30 of about 17,976 (120)
转移力不同的肺癌克隆细胞中nm23-H1基因产物NDPK 的表达
Zhongshan Daxue xuebao. Yixue kexue ban, 2000 【目的】比较转移抑制基因nm23-H1 表达产物核苷酸二磷酸激酶(nucleoside diphosphate kinase , NDPK)在转移力 不同的肺癌克隆株中的表达。【方法】通过单细胞克隆技术及裸鼠接种筛选出高转移及低转移的人肺巨细胞癌克隆细胞株及 高转移的人肺腺癌克隆细胞株, 用LSAB 免疫组化法检测nm23-H1 基因产物NDPK 的表达。【结果】NDPK 在高转移及低转 移的人肺巨细胞癌克隆细胞移植瘤及转移瘤中均有表达, 高转移株的阳性细胞数目及强度均高于低转移株和裸鼠正常肺组
张 彬 +3 more
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增强CT淋巴结形态联合错配修复蛋白表达检测对结直肠癌区域淋巴结转移的评估作用
Zhongguo shiyan zhenduanxue, 2023 目的 分析增强电子计算机断层扫描(CT)淋巴结形态联合错配修复蛋白(MMR)表达检测对结直肠癌区域淋巴结转移的评估作用。方法 选取2019年8月-2021年8月收治的结直肠癌患者89例，均采取手术治疗，术前行增强CT扫描及病理穿刺检测病灶组织MMR表达情况。以术中结果为标准，评价增强CT淋巴结形态联合MMR表达检测对直肠癌区域淋巴结转移的评估价值。结果 淋巴结转移患者高分化和pT3-4期百分率与淋巴结未转移患者比较，差异有统计学意义 ...
严征远, 卜雪峰, 曹能琦, 张恒
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Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19
Policy Studies Journal, Volume 54, Issue 3, August 2026.Abstract The COVID‐19 pandemic sparked unprecedented experimentation in the German social assistance system, leading to changes previously considered impracticable by policymakers. This included a sanctions moratorium, easier access to benefits, and temporary cash transfers, all of which were advocated by welfare associations—key organized interests ...
Christopher Smith Ochoa
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2009 目的探讨溶骨性骨代谢生化指标尿Ⅰ型胶原交联氨基末端肽（uNTX）检测在恶性肿瘤骨转移诊断中的价值。方法对24例骨转移患者及34例无骨转移的患者,利用ELISA方法测定uNTX水平。结果骨转移组患者uN-TX明显高于无骨转移组 ...
王玲, 王宏, 邱阳
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Visible‐Light‐Excited Optical Thermometry in Ca3Sc2Si3O12: Er3+ via an Efficient Eu2+ Bridge
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Er3+ ions are promising for optical thermometry due to their thermally coupled levels. However, their parity‐forbidden transitions result in weak and narrowband absorption, which restricts excitation to infrared lasers (e.g., 808, 980, or 1550 nm). Moreover, the single emission center inherently limits temperature sensitivity. In this work, we
Yi Liu +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Because of superior transportability and high energy capacity, methanol is regarded as a potential hydrogen carrier. Photocatalytic methanol dehydrogenation offers a sustainable and cost‐effective method for releasing hydrogen. Conventional photocatalysts face challenging obstacles, including the low catalytic efficiency and rapid ...
Rundong Chen +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Tumor metastasis and recurrence are major reasons for the difficulty in curing cancer. Although some immunotherapy methods have been developed, they are still limited by immunosuppression, resulting in limited therapeutic efficacy against tumors.
Chen Ye +4 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1987 本文报告自1964～1981年经外科治疗的女性单侧乳腺癌1656例,随访1—18年(中位11年),有128例发生骨转移,骨转移率为7.7％。骨转移的主要部位为脊柱(46.6％),肩胛带(15.1％),骨盆带(10.9％),显示乳腺癌的骨转移与肋间——脊椎静脉系统密切相关。本组术后发生骨转移的中位时间为22个月,发现骨转移后的中位生存时间为7个月。影响乳腺癌术后骨转移的主要因素为乳腺癌的病理组织学类型及区域淋巴结转移情况。作者认为预访和减少乳腺癌骨转移率的切实可行的措施是早期发现、早期诊断、早期治疗 ...
詹友庆
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Poverty &Public Policy, Volume 18, Issue 2, June 2026.ABSTRACT Cash transfers have become an increasingly important social protection tool in development and humanitarian contexts. In developing countries, cash transfers can be used to build economic resilience. This study examines the effects of unconditional cash transfers on asset accumulation among low‐income households in rural Northern Uganda. Using
Simon Peter Nsereko +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source