检索结果-南通市图书馆

图书情报工作动态 2009年第10期 14-14页

作者： Yoshinpori sato 苏娜（编译）郭明珠（校对）日本东北学院大学不详

研究图书馆为收集、发现和利用信息资源做出了巨大的贡献。然而，在急剧变化的数字时代，研究型图书馆正面临着极大挑战，即：如何利用数字技术和网络技术的优点维持并不断提高信息资源的可发现性和可用性。

关键词：意见书大学学院东北日本研究型图书馆信息资源研究图书馆

關於丙烯酯的高压合成——Ⅱ.加压下一氧化碳在鹵化鎳上的性質

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

化学世界 1956年第5期 263-263页

作者： Yamamoto Kazumi ,sato Kazutoshi ,潘家来

如果在乙炔和CO生成丙烯酯的这一反应的潛伏期[參看54988報導Ⅰ本刊11,4,175,（1906）]間,迅速冷却压熱鍋,則在反应混合物內發現有大量的Ni（CO）4存在;有作用的催化劑不是鎳的鹵化物,而是Ni（CO）4。曾研究过由某些鎳化合物及金屬鎳在... 详细信息

如果在乙炔和CO生成丙烯酯的这一反应的潛伏期[參看54988報導Ⅰ本刊11,4,175,（1906）]間,迅速冷却压熱鍋,則在反应混合物內發現有大量的Ni（CO）4存在;有作用的催化劑不是鎳的鹵化物,而是Ni（CO）4。曾研究过由某些鎳化合物及金屬鎳在乙醇存在下与CO作用生成Ni（CO）4的反应,反应時須在70大氣压的CO下加熱(以便在高溫下使Ni（CO）4加压分解及加速反应的進行)。当在反应混合物中使用NiCl2和NiI2時,發現有Fe離子和Fe（CO）5,它們大概是

关键词：反应 CO 浸析作用 Ni 丙烯烯烃

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

南极中山站午后极光强度与太阳风参数的关系

极地研究 2001年第3期13卷 151-158页

作者：胡红桥刘瑞源杨惠根王敬芳 Natsuo sato Masayu kiKikuchi 李升贵中国极地研究所上海200129 武汉大学光电信息学院武汉430072 National Institute of Polar Research

本文利用 1 997年和 1 998年南极中山站多通道扫描光度计的地面观测数据和 WIND卫星在弓激波上游对太阳风参数的观测数据 ,对午后高纬极光强度与太阳风等离子体密度、动压以及太阳风速度之间的相关性进行了定量研究。研究表明 ,午后极光... 详细信息

本文利用 1 997年和 1 998年南极中山站多通道扫描光度计的地面观测数据和 WIND卫星在弓激波上游对太阳风参数的观测数据 ,对午后高纬极光强度与太阳风等离子体密度、动压以及太阳风速度之间的相关性进行了定量研究。研究表明 ,午后极光 6 3 0 .0 nm的强度与太阳风等离子体参数之间有较好的相关 ,6 3 0 .0 nm的强度表现出随太阳风等离子体密度、动压和速度的增大而增加的趋势 ,其相关系数分别为 0 .84、0 .88和 0 .6 1 ;而 5 5 7.7nm极光的强度与太阳风等离子体参数之间的相关较差。午后 5 5 7.7nm和 6 3 0 .0 nm对太阳风参数的不同响应表明太阳风对 6 3 0 .0 nm影响更直接 ,而 5 5 7.

关键词：中山站午后极光极光强度太阳风参数磁层动力学南极

Safety of bronchial arterial embolization with n-butyl cyanoacrylate in a swine model

在线全文

学校读者我要写书评

暂无评论

World Journal of Radiology 2012年第12期4卷 455-461页

作者： Takami Tanaka Nobuyuki Kawai Morio sato Akira Ikoma Kouhei Nakata Hiroki Sanda Hiroki Minamiguchi Motoki Nakai Tetsuo Sonomura Ichiro Mori Department of Radiology Wakayama Medical University 811-1 Kimiidera Wakayamashi Wakayama 641-8510 Japan Department of 2nd Pathology Wakayama Medical University 811-1 Kimiidera Wakayamashi Wakayama 641-8510 Japan

AIM: To compare the efficacy and safety of bronchial artery embolization (BAE) with n-butyl cyanoacrylate (NBCA) and gelatin sponge particles (GSPs). METHODS: Six healthy female swine were divided into two groups to be treated with BAE using NBCA-lipiodol (NBCA-Lp) and using GSPs. The occlusive durability, the presence of embolic materials, the response of the vessel wall, and damage to the bronchial wall and pulmonary parenchyma were compared. RESULTS: No animals experienced any major complication. Two days later, no recanalization of the bronchial artery was observed in the NBCA-Lp group, while partial recanalization was seen in the GSP group. Embolic materials were not found in the pulmonary artery or pulmonary vein. NBCA-Lp was present as a bubble-like space in bronchial branch arteries of 127-1240 μm, and GSPs as reticular amorphous substance of 107-853 μm. These arteries were in the adventitia outside the bronchial cartilage but not in the fine vessels inside the bronchial cartilage. No damage to the bronchial wall and pulmonary parenchyma was found in either group. Red cell thrombus, stripping of endothelial cells, and infiltration of inflammatory cells was observed in vessels embolized with NBCA-Lp or GSP. CONCLUSION: NBCA embolization is more potent than GSP with regard to bronchial artery occlusion, and both materials were present in bronchial branch arteries≥100 μm diameter.

关键词： Bronchial artery embolization Embolic materials N-butyl cyanoacrylate Gelatin sponge Lipiodol

New categorization of human vascular endothelial cells by pro-vs anti-proliferative phenotypes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Translational Medicine 2015年第3期4卷 88-100页

作者： Miwako Nishio Masako Nakahara Chikako sato Koichi Saeki Hidenori Akutsu Akihiro Umezawa Kazuyuki Tobe Kazuki Yasuda Akira Yuo Kumiko Saeki Department of Disease Control Research Institute National Center for Global Health and Medicine Section of Cell Engineering Department of Basic Research DNAVEC Center ID Pharma Co. Ltd. PRESTO Japan Science and Technology Agency Department of Reproductive Biology National Research Institute for Child Health and Development First Department of Internal Medicine School of Medicine Toyama University Department of Metabolic Disorder Diabetes Research Center Research Institute National Center for Global Health and Medicine

AIM: To integrally understand the effects of human vascular endothelial cells(VECs) on the proliferation of vascular smooth muscle cells(VSMCs).METHODS: Various kinds of human VECs of different origins were co-cultured with human aortic smooth muscle cells, a representative of human VSMCs. To exclude the irrelevant effects due to growth competition between VECs and VSMCs, the proliferation of VECs had previously been arrested via a low-dose gamma rayirradiation. To discriminately analyze the proliferation of VSMCs from that of VECs, the former cells were labeled with red fluorescent dye while the latter cells were labeled with green fluorescent dye before performing coculture experiments. After 4 d, total cells were harvested and subjected to flow cytometric analyses. Decrements in red fluorescence intensities due to proliferationmediated dilutions were measured and mathematically processed using a specific software to quantitatively evaluate the proliferation of VSMCs. The findings obtained from the flow cytometry-based analyses were further validated by microscopic observations. RESULTS: Commercially available primary cultured human VECs exclusively promoted VSMC proliferation regardless of their tissue origins and we termed these pro-proliferative VECs as "typeⅠ". By contrast, VECs freshly generated from human bone marrow-derived endothelial progenitors cells or human pluripotent stem cells including embryonic stem cells and induced pluripotent stem cells suppressed VSMC proliferation and we termed these anti-proliferative VECs as "typeⅡ". Repetitive subcultures as well as oxidative stress induced "type Ⅱ VECs to typeⅠ" conversion along with an induction of Regulator of G-protein signaling 5(RGS5)Compatibly, anti-oxidant treatments suppressed both the subculture-dependent "typeⅡ to typeⅠ" conversion and an induction of RGS5 gene. Immunostaining studies of clinical specimens indicated that RGS5 protein expressions in endothelial layers were low in norma arteries b

关键词： Vascular endothelial cells Vascular smooth muscle cells Human induced pluripotent stem cells Human embryonic stem cells Regulator of G-protein signaling 5 Oxidative stress

洪湖水体氮、磷营养元素变化规律及富营养化进程研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

广州环境科学 2005年第2期20卷 5-7,15页

作者：马燕郑祥民远藤邦彦佐藤キエ子华东师范大学地理系教育部地理信息重点实验室上海200062 日本大学地球系统科学系

洪湖是湖北省最大的湖泊,也是长江中下游大型湖泊之一,为我国重要的淡水水产基地,在繁荣地方经济的同时,洪湖的生态环境也遭到了一定的破坏。文章通过对洪湖水体氮磷含量的采样和实验室分析,总结出从2001年到2003年洪湖氮、磷营养元素... 详细信息

洪湖是湖北省最大的湖泊,也是长江中下游大型湖泊之一,为我国重要的淡水水产基地,在繁荣地方经济的同时,洪湖的生态环境也遭到了一定的破坏。文章通过对洪湖水体氮磷含量的采样和实验室分析,总结出从2001年到2003年洪湖氮、磷营养元素含量年际变化的规律,得出洪湖水体总氮的含量呈下降趋势,而总磷的含量逐年增加,磷作为富营养化的限制性因素的作用逐渐减弱,说明洪湖富营养化的进程在加剧,针对这一结果探讨了造成这种状况的原因,并提出了防治对策。

关键词：富营养化洪湖变化规律进程营养元素含量长江中下游实验室分析 2003年 2001年限制性因素地方经济生态环境氮磷含量年际变化水体总氮防治对策湖北省湖泊采样总磷

在线全文

学校读者我要写书评

暂无评论

生物膜氨氧化及对硫酸盐还原的影响

中国给水排水 2005年第9期21卷 10-13页

作者：王磊杨永哲张开龙王旭东王志盈佐藤久福士宪一西安建筑科技大学环境与市政工程学院陕西西安710055 八户工业大学环境工学科

利用好氧生物转盘进行了生物膜脱氨的试验,测定了生物膜内硫酸盐还原与硝酸盐还原及DO之间的关系。结果表明:在进水NH4+-N为40 mg/L、HRT为5.49 h时,氨氧化率>85%;采用分段进水,合理利用碳源,有利于自养菌繁殖,从而促进硝化作用;由于受... 详细信息

利用好氧生物转盘进行了生物膜脱氨的试验,测定了生物膜内硫酸盐还原与硝酸盐还原及DO之间的关系。结果表明:在进水NH4+-N为40 mg/L、HRT为5.49 h时,氨氧化率>85%;采用分段进水,合理利用碳源,有利于自养菌繁殖,从而促进硝化作用;由于受水力冲刷等作用的影响,在生物膜内DO扩散深度可达350μm左右(大于在污泥基团的扩散深度),只有在低DO的层面上才出现NO3--N的反硝化;在含有NO3--N的系统内,生物膜内硫酸盐还原作用减弱,表明硫酸盐还原与反硝化是相互影响的,这一结果对富含硫酸盐的有机废水生物脱氮处理有一定的参考价值。

关键词：生物膜氨氧化硫酸盐还原反硝化

混合的自然的孔 transluminal 为 ileocecal 的内视镜的外科切除术

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2012年第2期4卷 41-44页

作者： satoru Takayama Masayasu Hara Mikinori sato Hiromitsu Takeyama Department of Gastroenterological Surgery Nagoya City University Graduate School of Medical SciencesNagoya

Although laparoscopic colectomy is commonly performed around the world,an operative wound formed during the surgery is large but not sufficient enough to convert for the majority of open ***,a certain sized skin incision is required to remove the resected *** we report the case of a pure laparoscopic ileocecal resection which involves transanal specimen *** present a case characterized by a laterally spreading type of tumor of the *** performed a pure laparoscopic ileocecal resection and the resected specimen was removed transanally using *** functional anastomosis was then performed using a flexible linear stapling device under supporting barbed suture *** patient was discharged without complications on postoperative day *** colectomy performed with minimal incision could essentially increase the usage of this surgical *** our method is restricted to flat or small lesions,we think it is a feasible and realistic solution for minimization of operative invasion because it involves specimen extraction through a natural orifice.

关键词： Laparoscopic ileocecal resection Natural orifice transluminal endoscopic surgery Transanus Barbed suture

后方诱导在治疗骨性Ⅱ类下颌后缩畸形中的应用

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

口腔医学研究 2016年第10期32卷 1079-1082页

作者：王明锋李福军冶录平姜洪涛刘琳佐藤贞雄大连市口腔医院正畸科辽宁大连116021 武汉大学口腔医学院正畸科湖北武汉430079 神奈川齿科大学正畸科日本神奈川238-8580

目的：介绍并评价利用后方（牙合）诱导治疗骨性Ⅱ类下颌后缩畸形的方法。方法：16例骨性Ⅱ类下颌后缩畸形患者,年龄16-30岁。治疗前SNA基本正常,SNB≤75°,ANB≥5°,磨牙关系为双侧远中关系。常规排齐整平及适当扩弓后利用多曲唇弓暂... 详细信息

目的：介绍并评价利用后方（牙合）诱导治疗骨性Ⅱ类下颌后缩畸形的方法。方法：16例骨性Ⅱ类下颌后缩畸形患者,年龄16-30岁。治疗前SNA基本正常,SNB≤75°,ANB≥5°,磨牙关系为双侧远中关系。常规排齐整平及适当扩弓后利用多曲唇弓暂时消除磨牙区咬（牙合）干扰,并通过升高下颌双尖牙,远中倾斜上颌后牙段,使双尖牙区形成暂时的早接触,进而建立双尖牙区的后方（牙合）诱导,利用后方（牙合）诱导引导后缩的下颌骨适当向前建立咬（牙合）,并纠正磨牙的远中关系。结果：所有患者磨牙关系均调整到中性,侧貌改善明显,SNB平均增大1.58°,下颌前牙略有唇倾,但无统计学意义。结论：利用后方（牙合）诱导可适度纠正骨性Ⅱ类下颌后缩畸形。

关键词：后方(牙合)诱导下颌后缩多曲唇弓

Stratifying the risk of lymph node metastasis in undifferentiated-type early gastric cancer

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2015年第9期21卷 2683-2692页

作者： Yukiko Asakawa Masahiko Ohtaka Shinya Maekawa Mitsuharu Fukasawa Yasuhiro Nakayama Tatsuya Yamaguchi Taisuke Inoue Tomoyoshi Uetake Minoru Sakamoto Tadashi sato Yoshihiko Kawaguchi Hideki Fujii Kunio Mochizuki Masao Hada Toshio Oyama Tomotaka Yasumura Kosaku Omata Atsushi Nishiyama Keiichi Naito Hideo Hata Yoshiaki Haba Kazuyuki Miyata Haruhisa Saitoh Yoichi Yamadera Kazuo Miura Akira Kawaoi Tohru Abe Hajime Tsunoda Yuji Honda Masayuki Kurosaki Nobuyuki Enomoto First Department of Internal Medicine Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan First Department of Surgery Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan Department of Pathology Faculty of MedicineUniversity of YamanashiYamanashi 409-3898Japan Department of Surgery Yamanashi Prefectural Central HospitalYamanashi 400-8506Japan Department of Pathology Yamanashi Prefectural Central HospitalYamanashi 400-8506Japan Department of Surgery Social Insurance Yamanashi HospitalYamanashi 400-0025Japan Department of Pathology Social Insurance Yamanashi HospitalYamanashi 400-0025Japan Department of General Surgery Kofu Kyoritsu HospitalYamanashi 400-0034Japan Department of Pathology Kofu Kyoritsu HospitalYamanashi 400-0034Japan Department of Surgery Kofu Municipal HospitalYamanashi 400-0832Japan Department of Pathology Kofu Municipal HospitalYamanashi 400-0832Japan Department of Surgery Yamanashi Kosei HospitalYamanashi 405-0033Japan Department of Surgery Kanoiwa General HospitalYamanashi 405-0018Japan Department of Pathology Kanoiwa General HospitalYamanashi 405-0018Japan Department of Surgery Social Insurance Kajikazawa HospitalYamanashi 400-0601Japan Department of Surgery Kofu National HospitalYamanashi 400-0006Japan Department of Surgery Fujiyoshida Municipal Medical CenterYamanashi 403-0005Japan Division of Gastroenterology and Hepatology Musashino Red Cross HospitalTokyo 180-0023Japan

AIM:To study how lymph node metastasis(LNM) risk is stratified in undifferentiated-type early gastric cancer(undiff-EGC) dependent on combinations of risk ***:Five hundred and sixty-seven cases with undiff-EGC undergoing gastrectomy with lymphadenectomy were examined *** clinicopathological factors of patient age,location,size,an endoscopic macroscopic tumor form,ulceration,depth,histology,lymphatic involvement(LI) and venous involvement(VI),LNM risk was examined and stratified by conventional statistical analysis and datamining ***:LNM was positive in 44 of 567 cases(7.8%).Univariate analysis revealed > 2 cm,protrusion,submucosal(sm),mixed type,LI and VI as significant prognostic factors and > 2 cm and LI-positive were independent factors by multivariate *** preoperatively evaluable factors excluding LVI,sm and > 2 cm were independent *** to the depth and size,cases were categorized into the low-risk group [m and ≤ 2 cm,0%(LNM incidence)],the moderaterisk group(m and > 2 cm,5.6%; and sm and ≤ 2 cm,6.0%),and the high-risk group(sm and > 2 cm,19.3%).On the other hand,LNM occurred in 1.4% in all LI-negative cases,greatly lower than 28.2% in all LI-positive cases,and LNM incidence was low in LInegative cases even in the moderate- and high-risk ***:LNM-related factors in undiff-EGC were depth and size preoperatively while those were LI and size *** these factors,LI was the most significantly correlated factor.

关键词： Undifferentiated-type early gastric cancer Lymph n