Search

【目的】测定压力源性的冠状动脉侧支血流分数,评价其与传统的Rentrop分级间的相关性;并探讨该冠状动脉侧支血流分数与急性心肌梗死直接经皮冠状动脉介入治疗成功后左室功能变化之间的关系。【方法】29例急性心肌梗死患者行直接经皮冠脉介入术,术中用冠状动脉内压力导丝根据“病变远端楔嵌压/主动脉平均压”计算冠脉侧支血流分数,以0.24为截值将29例分为两组:A组(19例)冠状动脉侧支血流分数>0.24,B组(10例)侧支血流分数≤0.24。术后根据冠状动脉造影行Rentrop分级。采用Simpson’s测左室射血分数、左室收缩及舒张末期容积,计算相关的容积指数。【结果】Rentrop分级与压力源性的冠状动脉侧支血流分数呈正相关性,该冠状动脉侧支血流分数同30d后左室射血分数呈正相关性。【结论】冠状动脉内压力源性的侧支血流分数可预测临床成功的直接经皮冠脉介入术后左室功能的恢复,并可对急性心肌梗死时侧支循环血流作出定量评价。

2000年6月18日,江西省宜黄县实验小学四年级的纪晨将2只伤愈的猫头鹰放飞大自然。今年四月初的一天清晨,纪晨起床时看见窗台上有2只黑黑的小动物,吓得叫来父母,其父母定睛一看,原来是2只受伤的猫头鹰。纪晨从《百科知识》书上

今年2月28日,江西省林业厅举办新闻发布会,正式宣布,经有关专家认定,江西省宜黄县发现了至少有一个家族共5只的野生华南虎。其中,成年雌虎及雄虎各一只,幼虎三只。这是目前发现的全国唯一有野生华南虎繁殖的地方。

Copyright of Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

We present the analysis of the microlensing event OGLE-2015-BLG-0845, which was affected by both the microlensing parallax and xallarap effects. The former was detected via the simultaneous observations from the ground and Spitzer , and the latter was caused by the orbital motion of the source star in a relatively close binary. The combination of these two effects led to a mass measurement of the lens object, revealing a low-mass (⁠|$0.14 \pm 0.05 \, \mathrm{ M}_{\odot }$|⁠) M dwarf at the bulge distance (⁠|$7.6 \pm 1.0$| kpc). The source binary consists of a late F-type subgiant and a K-type dwarf of |$\sim 1.2$| and |$\sim 0.9 \mathrm{ M}_{\odot }$|⁠ , respectively, and the orbital period is |$70 \pm 10$| d. OGLE-2015-BLG-0845 is the first single-lens event in which the lens mass is measured via the binarity of the source. Given the abundance of binary systems as potential microlensing sources, the xallarap effect may not be a rare phenomenon. Our work thus highlights the application of the xallarap effect in the mass determination of microlenses, and the same method can be used to identify isolated dark lenses. [ABSTRACT FROM AUTHOR]

Copyright of Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Phenology phenomenon affects a writer's creation through his/her life consciousness. Among Bao Zhao's existing 10 Fu works, there are many writings about phenological phenomena. From the perspective of phenological writing, it can be seen that Bao Zhao's life consciousness has the following characteristics: active participation in the world is Bao Zhao's understanding of life ontology; paying attention to the pursuit of life value in the way of individual nature is Bao Zhao's thinking on the methodology of life value pursuit. The phenological writing in Fu is of great significance in the expression of a writer's life consciousness. [ABSTRACT FROM AUTHOR]

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Research of Soil & Water Conservation is the property of Institute of Soil & Water Conservation, Chinese Academy of Sciences & Ministry of Water Resources and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Traditional Chinese Drug Research & Clinical Pharmacology is the property of Traditional Chinese Drug Research & Clinical Pharmacology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automobile Technology & Material is the property of Automobile Technology & Material Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Micronanoelectronic Technology is the property of Micronanoelectronic Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Piezoelectrics & Acoustooptics is the property of Piezoelectric & Acoustooptic and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Experiment is the property of Petroleum Geology & Experiment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Head and neck squamous cell carcinoma (HNSCC) is the most common head and neck tumor, characterized by high morbidity and high mortality. Since pembrolizumab and nivolumab were approved for the first line and platinum-refractory disease treatment of HNSCC, immunotherapy has become the standard of care for recurrent/metastatic (R/M) HNSCC. With the wide clinical application of immune checkpoint inhibitors, clinical guidance is needed on the use of these agents, including biomarker testing, appropriate patient selection, response assessment and adverse event management. To better guide the clinical treatment of R/M HNSCC patients on immune checkpoint inhibitors, the Chinese Society of Clinical Oncology (CSCO) and the China Anti-Cancer Association (CACA) convened an expert task force charged with developing consensus recommendations on these key aspects. This consensus serves as a guidance to standardize utilization of immunotherapy in HNSCC and to optimize clinical practice. After several rounds of discussion, the expert task force generated the following consensus recommendations. Programmed death-ligand 1 (PD-L1) expression is a predictive biomarker of anti-programmed death-1 (PD-1) first-line therapy for R/M HNSCC patients. It is recommended to routinely perform PD-L1 combined positive score (CPS) testing in patients before treatment. Pembrolizumab monotherapy or pembrolizumab in combination with platinum and 5-FU is recommended as first-line treatment for R/M HNSCC patients with PD-L1 CPS≥1. There is a need for a comprehensive consideration of PD-L1 CPS score (e.g., if CPS≥20), tumor burden and clinical symptoms when those patients are treated with pembrolizumab monotherapy or pembrolizumab combination regimen. Pembrolizumab in combination with platinum and 5-FU could be the first-line treatment option for R/M HNSCC patients with PD-L1 unknown or PD-L1 CPS<1. Pembrolizumab in combination with platinum and taxane could be the first-line treatment option for patients who are intolerant of 5-FU. Nivolumab or pembrolizumab is recommended as the late-line treatment for platinumresistant patients or patients who are platinum-refractory and have not previously received PD-1 inhibitors in R/M setting. For patients who are intolerant of chemotherapy and unsuitable for PD-1 inhibitor monotherapy, pembrolizumab or nivolumab in combination with cetuximab can be the treatment option as first-line or late-line therapy. For patients treated with immune checkpoint inhibitors, it is recommended to closely monitor the signs of adverse events during the whole course of treatment and use the multidisciplinary team (MDT) for treatment strategy if necessary. [ABSTRACT FROM AUTHOR]

Copyright of Feed Research is the property of Editorial Board of Feed Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Osteoporosis is the property of Chinese Journal of Osteoporosis and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Mass Spectrometry Society is the property of Journal of Chinese Mass Spectrometry Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Atomic & Molecular Physics (1000-0364) is the property of Journal of Atomic & Molecular Physics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal on Communication / Tongxin Xuebao is the property of Journal on Communications Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Fuzhou University is the property of Journal of Fuzhou University, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The B4C@TiB2 composite powders with core-shell structure were fabricated by in-situ formation of TiB2 on the surface of B4C by chemical coating combined with heat treatment, which the tetrabutyl titanate and B4C powders were used as raw materials. The results showed that the B4C-TiB2 core-shell interface was constructed, which transformed boron carbide from stoichiometric B4C to boron-rich phase B13C2 and caused severe lattice distortion. When the TiB2 content increased from 0 wt % to 20 wt %, the minimum reflection loss value(RLmin) of B4C@TiB2 composite powder increased from-9.76 dB to-19.94 dB. It can be attributed to the improvement of impedance matching of B4C powders. Furthermore, the lattice distortion and core-shell structure enhanced the dipole polarization and the interface polarization, respectively. The synergistic effects improved the dielectric loss capability, which significantly improved the electromagnetic wave absorption performance of B4C powders.  [ABSTRACT FROM AUTHOR]

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective Comparison of saphenous nerve radiofrequency ablation and intra -articular injection of triamcinolone for treatment of knee osteoarthritis. Methods From June 2021 to June 2022, 60 patients with knee osteoarthritis who met relevant criteria were admitted to our hospital and randomly divided into two groups, control group and study group, with 30 patients in each group. Patients in the study group were treated with ultrasound - guided saphenous nerve pulse radiofrequency therapy, while patients in the control group were treated with intra -articular triamcinolone injection. The visual analogue scale score and WOMAC score of the two groups were compared and analyzed before treatment, 1 week, 1 month and 6 months after treatment, and whether there were complications between the two groups was observed. Results No complications were found in both groups. The VAS scores of patients 1 week and 1 month after treatment were statistically different (P < 0.05), and the VAS scores of the study group 1 month and 6 months after treatment were lower than those of the control group. The difference in WOMAC scores of 1 week, 1 month and 6 months after treatment was statistically significant between the two groups, and the WOMAC scores of 1 month and 6 months after treatment in the control group were higher than those in the study group (P < 0.05). Conclusion Ultrasound-guided saphenous nerve pulse radiofrequency can effectively relieve the pain of osteoarthritis, and its clinical efficacy is better than that of intraarticular hormone injection. [ABSTRACT FROM AUTHOR]

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Fuzhou University is the property of Journal of Fuzhou University, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science Edition) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)