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REACTION OF M-DIMETHOXYBENZENE WITH CROTONIC ACID IN THE PRESENCE OF PPA

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Chinese Chemical Letters 1992年第1期3卷 23-24页

作者： Yan Ling SONG Bao hua huang sheng JIN Department of Chemistry Peking University Beijing 100871

The reaction of m-dimethoxybenzene with crotonic acid in the presence of PPA affords an unexpected compound,which has been proved to be a dimer by H-NMR and *** x-ray struc- tural analysis has the same *** phenomenon ... 详细信息

关键词： REACTION OF M-DIMETHOXYBENZENE WITH CROTONIC ACID IN THE PRESENCE OF PPA ACID

Advances in postoperative adjuvant therapy for primary liver cancer

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World Journal of Gastrointestinal Oncology 2022年第9期14卷 1604-1621页

作者： Zhi-Ming Zeng Ning Mo Jie Zeng Fu-Chao Ma Yan-Feng Jiang hua-sheng huang Xi-Wen Liao Guang-Zhi Zhu Jie Ma Tao Peng Department of Medical Oncology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Hepatobiliary Surgery The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

Hepatocellular carcinoma(HCC)is a highly heterogeneous,invasive,and conventional chemotherapy-insensitive tumor with unique biological *** main methods for the radical treatment of HCC are surgical resection or liver ***,recurrence rates are as high as 50%and 70%at 3 and 5 years after liver resection,respectively,and even in Milan-eligible recipients,the recurrence rate is approximately 20%at 5 years after liver ***,reducing the postoperative recurrence rate is key to improving the overall outcome of liver *** review discusses the risk factors for recurrence in patients with HCC radical surgical resection and adjuvant treatment options that may reduce the risk of recurrence and improve overall survival,including local adjuvant therapy(e.g.,transcatheter arterial chemoembolization),adjuvant systemic therapy(e.g.,molecular targeted agents and immunotherapy),and other adjuvant therapies(e.g.,antiviral and herbal therapy).Finally,potential research directions that may change the paradigm of adjuvant therapy for HCC are analyzed.

关键词： Adjuvant therapy Liver cancer Immunotherapy Chemotherapy Targeted therapy

Challenges in the management of visual and tactile hallucinations in elderly people

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World Journal of Psychiatry 2025年第1期15卷 185-188页

作者： Si-sheng huang Division of Geriatric Psychiatry Department of PsychiatryChanghua Christian HospitalChanghua 500Taiwan Department of Post-Baccalaureate Medicine College of MedicineNational Chung Hsing UniversityTaichung 402Taiwan

This letter provides a concise review of the pertinent literature on visual and tactile hallucinations in elderly *** discussion addresses differential diagnoses and potential underlying mechanisms,as well as the psychopathology associated with tactile hallucinations,and emphasizes the necessity for invest-igation into the possibility of coexisting delusional infestation(parasitosis).These symptoms frequently manifest in patients with primary psychotic disorders,organic mental disorders,and substance use *** proposed pathophy-siological mechanisms may involve dopaminergic imbalances and dysfunction of the striatal dopamine transporter.

关键词： Delusional infestation Dementia Haptic hallucination Scratching behavior Tactile hallucination Visual hallucination Alzheimer’s disease

Enhancing postoperative pain control by surgically-initiated rectus sheath block in abdominal aortic aneurysm open repair: A case report

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World Journal of Clinical Cases 2025年第6期13卷 41-47页

作者： Kuan-hua Chen Ming-Yuan Kang Yi-Ting Chang sheng-Yang huang Yung-Szu Wu Center for Cardiovascular Disease Taichung Veterans General HospitalTaichung 407219TaiwanChina Department of Anesthesiology Taichung Veterans General HospitalTaichung 407219TaiwanChina Division of Pediatric Surgery Department of SurgeryTaichung Veterans General HospitalTaichung 407219TaiwanChina School of Medicine National Yang Ming Chiao Tung UniversityTaipei 112304TaiwanChina Department of Post-Baccalaureate Medicine National Chung Hsing UniversityTaichung 402202TaiwanChina

BACKGROUND Abdominal aortic aneurysm(AAA)repair often involves significant postoperative pain,traditionally managed with systemic opioids,which can cause undesirable side *** case report explores the novel use of a surgically-initiated rectus sheath block with a catheter-over-needle assembly for pain management in AAA *** SUMMARY A 67-year-old female with hypertension and previous aortic dissection underwent elective open repair of an infrarenal AAA,which had grown from 3.4 cm to 4.3 cm over 14 months.A rectus sheath block was initiated surgically for postoperative pain *** patient reported low pain scores and did not require systemic intravenous opioids,enabling early ambulation and discharge on postoperative day seven without *** preventing complications of systemic opi-oids,the method indicating a promising direction for postoperative pain management in major vascular *** Surgically-initiated rectus sheath block as a valuable tool for managing postoperative pain in AAA repair.

关键词： Abdominal aortic aneurysm Postoperative pain management Rectus sheath block Surgical anesthesia Opioid-sparing techniques Case report

调Q Alexandrite激光治疗太田痣的合理间隔时间

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复旦学报（医学版） 2002年第2期29卷 125-128页

作者：卢忠方丽华焦圣黄雯陈军庞王侠生复旦大学附属华山医院皮肤科上海200040

目的　探讨调QAlexandrite激光对太田痣的合理治疗间隔时间。方法　 2 67例接受 3次治疗的患者按治疗间隔分为 4组 ,并进行疗效评判 ;对 187例患者就术后色泽消退停止的时间进行调查 ;5例患者接受了多例次活检 ,对 7例次术后采集的标本... 详细信息

目的　探讨调QAlexandrite激光对太田痣的合理治疗间隔时间。方法　 2 67例接受 3次治疗的患者按治疗间隔分为 4组 ,并进行疗效评判 ;对 187例患者就术后色泽消退停止的时间进行调查 ;5例患者接受了多例次活检 ,对 7例次术后采集的标本进行光镜和电镜观察。结果　所有患者均有不同程度色素消退 ,无一例产生瘢痕。治疗间隔 5～ 6月者疗效明显优于 3～ 4月 ,而与 7～ 8月及 9月以上者相比疗效无显著差异。 80 .2 1%患者至术后 7月已观察不到明显的色素消退。光镜下 ,术后 4月左右噬黑素细胞明显增加 ;此时在电镜下可见黑素小体与细胞残骸仍散在于胶原纤维之间。结论　大多数太田痣患者的合理治疗间隔为 5～

关键词：太田痣激光治疗治疗间职 Q Alexandrite激光

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数字化变电站时间同步系统的探讨

电力系统通信 2011年第1期32卷 28-32页

作者：华煌圣王莉广州供电局广东广州510620

IEC 61850中描述了过程层、间隔层、变电站层的数字化变电站结构,采用面向对象的思想对站内的数据采集、保护、控制、计量等功能进行划分,导致站内设备的时间同步要求发生改变。文章结合功能要求对数字化变电站设备的对时要求进行分析,... 详细信息

IEC 61850中描述了过程层、间隔层、变电站层的数字化变电站结构,采用面向对象的思想对站内的数据采集、保护、控制、计量等功能进行划分,导致站内设备的时间同步要求发生改变。文章结合功能要求对数字化变电站设备的对时要求进行分析,根据设备的对时需求,提出基于SNTP的网络对时与基于秒脉冲的硬对时结合的对时系统结构。介绍SNTP网络对时在数字化变电站的数据交换以太网上实现的配置方法,对合并单元在秒脉冲校时条件下的采样控制方法进行分析,给出了数字化变电站全站同步系统实现的参考方案。

关键词：数字化变电站对时系统 SNTP 同步采样

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电子式互感器数据传输方法的分析与改进

电力系统保护与控制 2008年第14期36卷 62-66,82页

作者：华煌圣游大海余宏伟华中科技大学电气与电子工程学院湖北武汉430074 武汉华工电气自动化有限责任公司湖北武汉430074

分析了当前电子式电压/电流互感器的数据传输方案中存在的问题,在此基础上提出了改进的数据传输方案。方案包括数据传输的硬件结构设计以及串行通信协议。该方案采用CPLD作为通信控制器件,DSP作为接收数据的处理器件,简化了数据采集系... 详细信息

分析了当前电子式电压/电流互感器的数据传输方案中存在的问题,在此基础上提出了改进的数据传输方案。方案包括数据传输的硬件结构设计以及串行通信协议。该方案采用CPLD作为通信控制器件,DSP作为接收数据的处理器件,简化了数据采集系统的硬件结构。通过全数字锁相环逻辑从曼彻斯特编码的基带信号中提取位同步信号,位同步精度显著提高,实现了可靠的串行通信。通信提供了可靠的误码检测手段,并对接收错误的数据采用Lagrange线性插值算法进行修复。分析与仿真表明该数据传输方案具有良好的性能。文中最后提供了一套设计实例作为电子式电压/电流互感器数据采集系统的设计参考。

关键词：电子式电压/电流互感器数据采集串行通信全数字锁相环线性插值

IEC61850标准控制模型在保护装置控制中的应用

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机电工程技术 2014年第2期43卷 19-24,36页

作者：徐彬文洪华煌圣广州供电局有限公司广东广州510620

对IEC61850标准中的SGCB、Control模型的服务、控制机制进行了详细的分析,将SGCB应用至继电保护装置的定值读写、定值区切换服务,将Control模型的增强安全的操作前选择控制、常规安全的直接控制模式分别应用至继电保护装置的软压板投退... 详细信息

对IEC61850标准中的SGCB、Control模型的服务、控制机制进行了详细的分析,将SGCB应用至继电保护装置的定值读写、定值区切换服务,将Control模型的增强安全的操作前选择控制、常规安全的直接控制模式分别应用至继电保护装置的软压板投退控制、信号复归服务,将IEC61850标准的控制模型映射至常用的继电保护装置控制功能。在此基础上,设计了继电保护装置控制功能的应用模式,并在广州电网成功应用。

关键词： SGCB模型 Control模型定值控制软压板控制信号复归控制

Small extracellular vesicles derived from human induced pluripotent stem cell-differentiated neural progenitor cells mitigate retinal ganglion cell degeneration in a mouse model of optic nerve injury

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Neural Regeneration Research 2025年第2期20卷 587-597页

作者： Tong Li Hui-Min Xing Hai-Dong Qian Qiao Gao sheng-Lan Xu hua Ma Zai-Long Chi State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina

Several studies have found that transplantation of neural progenitor cells(NPCs)promotes the survival of injured ***,a poor integration rate and high risk of tumorigenicity after cell transplantation limits their clinical *** extracellular vesicles(sEVs)contain bioactive molecules for neuronal protection and *** studies have shown that stem/progenitor cell-derived sEVs can promote neuronal survival and recovery of neurological function in neurodegenerative eye diseases and other eye *** this study,we intravitreally transplanted sEVs derived from human induced pluripotent stem cells(hiPSCs)and hiPSCs-differentiated NPCs(hiPSC-NPC)in a mouse model of optic nerve *** results show that these intravitreally injected sEVs were ingested by retinal cells,especially those localized in the ganglion cell *** with hiPSC-NPC-derived sEVs mitigated optic nerve crush-induced retinal ganglion cell degeneration,and regulated the retinal microenvironment by inhibiting excessive activation of *** analysis further revealed that hiPSC-NPC derived sEVs transported neuroprotective and anti-inflammatory miRNA cargos to target cells,which had protective effects on RGCs after optic nerve *** findings suggest that sEVs derived from hiPSC-NPC are a promising cell-free therapeutic strategy for optic neuropathy.

关键词： exosome miRNA neural progenitor cell neurodegeneration neuroinflammation neuroprotection optic nerve crush optic neuropathy retinal ganglion cell small extracellular vesicles