Results 11 to 20 of about 2,073 (104)
Emergency management and the final frontier: Preparing local communities for falling space debris
Risk, Hazards &Crisis in Public Policy, Volume 14, Issue 3, Page 247-266, September 2023., 2023 Abstract Global dependence on satellite technologies, along with expanding space exploration, and commercial space travel have made rocket launches routine modern‐day events. As a result, there is an increasing probability of civilian casualty from rocket launch anomalies, or from falling space debris already in orbit.
Hans M. Louis‐Charles +3 more
wiley +1 more source
Effect of Life Review Therapy for Holocaust Survivors: A randomized controlled trial
Journal of Traumatic Stress, Volume 36, Issue 3, Page 628-641, June 2023., 2023 Abstract Despite the therapeutic needs of aging Holocaust survivors, no randomized controlled trial (RCT) of psychotherapy exists for this population, with very few on older adults in general. This RCT aimed to compare the efficacy of Life Review Therapy for Holocaust survivors (LRT‐HS) relative to a supportive control group. Holocaust survivors with a
Simon Forstmeier +6 more
wiley +1 more source
Veterinary Dermatology, Volume 27, Issue 5, Page 391-e98, October 2016., 2016 Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2021 细胞通过有氧代谢使生命活动得以进行和维持,有氧代谢过程中会产生活性氧(ROS)等多种自由基[1]。自由基对细胞来说是一把双刃剑,一方面,自由基是有氧代谢所必备的;另一方面,对机体存在毒性。许多实验已经表明,自由基反应能导致细胞退化、老化、裂解[2]。H2O2是一种ROS,在诱导细胞的损伤、死亡中起关键作用。它能损伤DNA、使酶失活、氧化激素、破坏细胞膜的完整性,甚至杀死细胞等,是多种疾病的起点[3]。
李波, 信瑞, 柳承鑫, 曲丹华
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Zhongguo shiyan zhenduanxue, 2010 目的观察枸杞多糖对效应T细胞增殖和杀瘤活性机制的作用。方法通过密度梯度离心法分离人外周血单核细胞并培养其为树突状细胞,用冻融法制备肝癌细胞的全抗原并致敏树突状细胞;通过混合淋巴细胞实验,获取树突状细胞激活的特异性效应T细胞。用MTT法测定效应T细胞对肝癌细胞的杀伤率。观察枸杞多糖在树突状细胞的成熟及T细胞的激活、增殖和杀瘤过程中的作用。结果枸杞多糖单独对T细胞无明显的增殖能力,但能促进树突状细胞的成熟并且能增强效应T细胞的增殖能力和杀瘤活性 ...
王晓华 +3 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 1997 摘 要 观察重组人白细胞介素2(γ-IL2 )体外诱导的腹腔巨噬细胞, 在YPC3抗人胰腺癌单克隆抗体 ( YPC3 m Ab)介导下,通过抗体依赖性细胞介导的细胞毒性( ADCC)机制对胰腺癌细胞的杀伤作用。4 h 51 Cr释 放实验表明,在Y PC3m Ab作用下,活化腹腔巨噬细胞对Capan-2人胰腺癌细胞的杀伤活力明显增强,比单用巨 噬细胞杀伤活力约提高70.
陈其奎 袁世珍
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Zhongshan Daxue xuebao. Yixue kexue ban, 2000 【目的】探讨癌胚抗原重组痘苗病毒(CEA-rV)对癌胚抗原(CEA)阳性肿瘤的抑瘤机制。【方法】使用我室构建 的CEA-rV 腹腔接种C57BL/ 6 小鼠3 次, 6 周后, 取其腹腔巨噬细胞(MΥs)转输给携带CEA 阳性肿瘤的受体小鼠, 同时检测供 体MΥs 及受体脾细胞的体外细胞毒活性。【结果】供体MΥs 体外细胞毒活性无明显增加, 但体内却能明显抑制CEA 阳性肿 瘤的生长, 受体脾细胞对同一靶细胞的杀伤活性亦明显增强。【结论】经CEA-rV 接种处理的小鼠MΥs 可能通过其抗原提呈 ...
赵 青 +3 more
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Zhongguo shiyan zhenduanxue, 2016 目的探讨负载抗原的树突状细胞（Dendritic cells,DC）以及DC联合CIK细胞（cytokine induced killer cells）对小细胞肺癌细胞株NCIH-446的杀伤作用,为DC、CIK应用于小细胞肺癌的治疗提供实验数据。方法体外培养DC、CIK细胞,并将NCIH-446提取的抗原负载到DC,同时将DC与CIK联合培养,将负载抗原的DC（DC-Ag）及DC-CIK与NCI446按50∶1的比例进行杀伤活性实验,检测培养不同时间的两种细胞对NCIH-446的杀伤作用。结果 DC ...
赵鑫 +6 more
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IL-2,TNFα激活的脐血单核细胞对K562细胞株杀伤作用的研究
Zhongguo shiyan zhenduanxue, 2003 目的 评价IL - 2 ,TNFα ,IL - 2联合TNFα激活的脐血单核细胞 （Mφ）对白血病细胞株K5 6 2的细胞毒作用。方法 将IL - 2 ,TNFα ,IL - 2联合TNFα分别激活的脐血单核细胞按效靶比 2 0 :1,5 0 :1加入白血病细胞株K5 6 2共同培养 4 8小时 ,采用MTT法检测各组的细胞毒效应。结果 IL - 2 ,TNFα分别激活的脐血单核细胞对白血病细胞株K5 6 2有杀伤作用 ,但较弱 ,而将IL - 2联合TNFα激活的单核细胞对其杀伤作用明显增强 ...
王晓波, 高强, 宋振岚
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