Results 11 to 20 of about 232,606 (165)
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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Zhongshan Daxue xuebao. Yixue kexue ban, 2022 目的既往有多个报道结直肠癌转移方式的研究，但尚缺少基于长期随访并以死亡作为观察终点，总结CRC转移部位、发生率以及相关生存数据的研究。方法本研究回顾中山大学附属第六医院373例结直肠癌死亡患者资料，统计分析肿瘤转移的部位、发生率以及生存资料。结果334例（89.5%）患者为肿瘤相关性死亡，肝转移率为51.5%，肺转移率为40.4%，腹膜转移率为55.7%。单纯肝、肺、腹膜转移患者数分别为27例（8%）、21例（6.3%）、63例（18.9%）。单纯肺转移患者生存明显优于单纯肝转移或单纯腹膜转移（P<
周家铭 +7 more
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Zhongguo shiyan zhenduanxue, 2021 目的 探讨血清白介素-6（Interleukin-6,IL-6）与分化型甲状腺癌（Differentiated Thyroid Cancer,DTC）术后转移相关性及其检测意义。方法 DTC行双侧甲状腺全切术后并准备行131I治疗（TSH刺激状态下）的患者43例,按照治疗后5-7天的131I-WBS是否发生转移分为转移组17例,无转移组26例,检测、记录各组131I治疗前血清IL-6、Tg、TgAb、TSH、FT3、FT4水平。结果 ①DTC术后转移组血清IL-6水平高于无转移组（P=0.043 ...
林禹, 赖力, 陈文新
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Gaoya dianqi, 2020 为保障进行±800 kV输电线路带电作业人员的人身安全,对带电作业人员电位转移特性的研究有助于制定合适的安全防护措施。通过建立作业人员进行电位转移过程中基于流体动力学的棒—板间隙放电模型,仿真得到了人与导线间的空气间隙电场强度变化特性,计算了转移过程中的暂态能量,分析了转移距离为0.3～0.6 m时电位转移能量数值的分布特点。结果表明,不同转移距离下的转移能量均在1.0 J附近,随着转移距离的增大,转移能量有所增加,而转移能量高于1.0 J时,导电手套存在被烧蚀的风险,因此作业人员进行±800 ...
李智琦 +5 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Flowers with deep corollas are frequently associated with nectar robbing, a behaviour that often reduces pollen transfer and seed production. Robbing scars, however, may further affect plant reproductive success through rainwater entry into corolla tubes.
Wu Sun +6 more
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不同原发肿瘤类型脊柱转移瘤生存预后因素的系统评价与Meta分析
Zhongguo shiyan zhenduanxue, 2023 目的 明确脊柱转移瘤患者治疗后的预后影响因素。方法 系统性地检索PubMed、Embase和CENTRAL数据库中发表于1997年至2018年的脊柱转移瘤预后因素相关文献。以风险比(hazard ration, HR)为效应量对不同原发肿瘤类型相关的预后因素进行meta分析。结果 系统评价共纳入44篇文献，病例数为9492例；Meta分析纳入26篇文献，病例数为7072例。共有11个预后因素用于Meta分析，其中内脏转移(HR=1.50,95%CI:1.36～1.66 ...
相春宇 +4 more
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Conservation Biology, EarlyView.Abstract Qualitative approaches are increasingly applied in conservation social science, yet methodological reflection remains limited. Member checking, a process of returning findings to participants for feedback, is widely recognized outside conservation as a means to enhance rigor and reciprocity, but it is rarely reported in conservation research ...
Judith J. Rakowski +6 more
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Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Regulating the d‐band center of semiconductors through elemental doping presents a promising strategy for enhancing the efficiency of photocatalytic nitrogen conversion. This review systematically summarizes recent advances in d‐band center engineering for photocatalytic nitrogen fixation.
Zixuan Li +10 more
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Vanadium redox flow batteries show considerable promise for energy storage, yet their overall performance is still hindered by the limited electrochemical activity of graphite felt (GF) electrodes. Herein, using folic acid and metal salts as precursors, M–N–C functionalized carbon nanosheets (M–NC, M=Co, Fe, and Ni) were prepared via a ...
Long Jiang +7 more
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