Systemically angular and planar transport investigations are performed in layered antiferromagnetic(AF)V_(5)S_(8).In this AF system,obvious anomalous Hall effect(AHE)is observed with a large Hall angle of 0.1 compared...Systemically angular and planar transport investigations are performed in layered antiferromagnetic(AF)V_(5)S_(8).In this AF system,obvious anomalous Hall effect(AHE)is observed with a large Hall angle of 0.1 compared to that in ferromagnetic(FM)system.It can persist to the temperatures above AF transition and exhibit strong angular field dependence.The phase diagram reveals various magnetic states by rotating the applied field.By analyzing the anisotropic transport behavior,magnon contributions are revealed and exhibit obvious angular dependence with a spin-flop vanishing line.The observed prominent planar Hall effect and anisotropic magnetoresisitivity exhibit two-fold systematical angular dependent oscillations.These behaviors are attributed to the scattering from spin–orbital coupling instead of nontrivial topological origin.Our results reveal anisotropic interactions of magnetism and electron in V5S8,suggesting potential opportunities for the AF spintronic sensor and devices.展开更多
目的比较腹腔镜和开腹肝切除术在具有伴发疾病的老年肝脏恶性肿瘤患者中的疗效和短期获益。方法纳入自2015年4—10月期间因肝脏恶性肿瘤接受肝切除的70岁及以上患者。17例腹腔镜手术患者的围手术期结果按照1∶2的比例与传统开腹手术患...目的比较腹腔镜和开腹肝切除术在具有伴发疾病的老年肝脏恶性肿瘤患者中的疗效和短期获益。方法纳入自2015年4—10月期间因肝脏恶性肿瘤接受肝切除的70岁及以上患者。17例腹腔镜手术患者的围手术期结果按照1∶2的比例与传统开腹手术患者相匹配。结果两组患者的年龄、性别、合并症发病率、乙型肝炎阳性率,肝功能Child评分无统计学差异。两组中位肿瘤大小均为3 cm。两组之间肝切除类型相似,手术时间无明显差异(腹腔镜195 min vs.开腹210 min,P=0.436)。腹腔镜组围手术期失血量为150 m L,开腹组为330 m L,差异无统计学意义(P=0.046)。腹腔镜组平均住院时间为6 d(3~15 d),开腹组为8 d(5~105 d)(P=0.005)。结论腹腔镜肝切除术对老年患者是安全可行的。腹腔镜手术的短期获益在老年患者肝脏肿瘤手术中仍然显见。展开更多
基金Project supported by the open research fund of Songshan Lake Materials Laboratory(Grant No.2021SLABFN11)the National Natural Science Foundation of China(Grant Nos.U2130101 and 92165204)+5 种基金Natural Science Foundation of Guangdong Province(Grant No.2022A1515010035)Guangzhou Basic and Applied Basic Research Foundation(Grant No.202201011798)the Open Project of Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices(Grant No.2022B1212010008)the Open Project of Key Laboratory of Optoelectronic Materials and Technologies(Grant No.OEMT-2023-ZTS-01)the National Key R&D Program of China(Grant Nos.2023YFF0718400 and 2023YFA1406500)(national)college students innovation and entrepreneurship training program,Sun Yat-sen University(Grant No.202310359).
文摘Systemically angular and planar transport investigations are performed in layered antiferromagnetic(AF)V_(5)S_(8).In this AF system,obvious anomalous Hall effect(AHE)is observed with a large Hall angle of 0.1 compared to that in ferromagnetic(FM)system.It can persist to the temperatures above AF transition and exhibit strong angular field dependence.The phase diagram reveals various magnetic states by rotating the applied field.By analyzing the anisotropic transport behavior,magnon contributions are revealed and exhibit obvious angular dependence with a spin-flop vanishing line.The observed prominent planar Hall effect and anisotropic magnetoresisitivity exhibit two-fold systematical angular dependent oscillations.These behaviors are attributed to the scattering from spin–orbital coupling instead of nontrivial topological origin.Our results reveal anisotropic interactions of magnetism and electron in V5S8,suggesting potential opportunities for the AF spintronic sensor and devices.
文摘目的比较腹腔镜和开腹肝切除术在具有伴发疾病的老年肝脏恶性肿瘤患者中的疗效和短期获益。方法纳入自2015年4—10月期间因肝脏恶性肿瘤接受肝切除的70岁及以上患者。17例腹腔镜手术患者的围手术期结果按照1∶2的比例与传统开腹手术患者相匹配。结果两组患者的年龄、性别、合并症发病率、乙型肝炎阳性率,肝功能Child评分无统计学差异。两组中位肿瘤大小均为3 cm。两组之间肝切除类型相似,手术时间无明显差异(腹腔镜195 min vs.开腹210 min,P=0.436)。腹腔镜组围手术期失血量为150 m L,开腹组为330 m L,差异无统计学意义(P=0.046)。腹腔镜组平均住院时间为6 d(3~15 d),开腹组为8 d(5~105 d)(P=0.005)。结论腹腔镜肝切除术对老年患者是安全可行的。腹腔镜手术的短期获益在老年患者肝脏肿瘤手术中仍然显见。
