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| 1 | 藏南沉错湖泊沉积多指标揭示的2万年以来环境变化显示文摘通过对藏南沉错湖芯TC1孔的研究,分析了TC1孔的粒度、TOC、TN、C/N、Fe/Mn、Sr/Ba以及环境磁学参数等环境代用指标,基本上获得了这一地区2万年以来的环境变化记录.结果显示约19800~18000 Cal aBP的温度下降在各指标中具有明显的反映;约16000Cal aBP左右,温度在一次跃动上升之后,随即出现急剧下降;约15200~12000 Cal aBP,是降温之后的缓慢回升过程;约12000~9500Cal aBP,各种指标均显示湖区环境处于不适宜阶段,特别是11600~10400 Cal aBP,湖区环境显著恶化.进入全新世后,湖区环境经历了3次明显的暖期(约9 500~7600 Cal aBP、约6800~5800Cal aBP、约4800~3800 Cal aBP)和2次冷期(约7600~6800 Cal aBP、约5 800~4800 Cal aBP),呈现出暖干/冷湿的交替规律,具有南亚季风(西南季风)区气候变化的特征.沉错湖区2万年来的气候环境变化序列中的某些特征时段与格陵兰冰芯记录和青藏高原其他记录相比具有较好的一致性,反映了湖区及藏南地区的气候环境演变特征具有全球性特征. | 朱立平 王君波 陈玲 杨京蓉 李炳元 朱照宇 Hiroyki Kitagawa Gran Possnert | 2004 | 地理学报2004，59，4： | 38 |
| 2 | Criteria for the diagnosis and severity stratification of acute pancreatitis显示文摘Recent diagnostic and therapeutic progress for severe acute pancreatitis(SAP)remarkably decreased the casemortality rate.To further decrease the mortality rate of SAP,it is important to precisely evaluate the severity at an early stage,and initiate appropriate treatment as early as possible.Research Committee of Intractable Diseases of the Pancreas in Japan developed simpler criteria combining routinely available data with clinical signs.Severity can be evaluated by laboratory examinations or by clinical signs,reducing the defect values of the severity factors.Moreover,the severity criteria considered laboratory/clinical severity scores and contrastenhanced computed tomography(CE-CT)findings as independent risk factors.Thus,CE-CT scans are not necessarily required to evaluate the severity of acute pancreatitis.There was no fatal case in mild AP diagnosed by the CE-CT severity score,whereas case-mortality rate in those with SAP was 14.8%.Case-mortality of SAP that fulfilled both the laboratory/clinical and the CE-CT severity criteria was 30.8%.It is recommended,therefore,to perform CE-CT examination to clarify the prognosis in those patients who were diagnosed as SAP by laboratory/clinical severity criteria.Because the mortality rate of these patients with SAP is high,such patients should be transferred to advanced medical units. | Makoto Otsuki Kazunori Takeda Seiki Matsuno Yasuyuki Kihara Masaru Koizumi Masahiko Hirota Tetsuhide Ito Keisho Kataoka Motoji Kitagawa Kazuo Inui Yoshifumi Takeyama | 2013 | World Journal of Gastroenterology2013，19，35： | 24 |
| 3 | Enhancement patterns of pancreatic adenocarcinoma on conventional dynamic multi-detector row CT:Correlation with angiogenesis and fibrosis显示文摘AIM:To evaluate retrospectively the correlation between enhancement patterns on dynamic computed tomography (CT) and angiogenesis and fibrosis in pancreatic adenocarcinoma.METHODS: Twenty-three patients with pancreatic adenocarcinoma underwent dynamic CT and tumor resection. In addition to the absolute and relative enhanced value that was calculated by subtracting the attenuation value on pre-contrast from those on contrast-enhanced CT in each phase, we defined one parameter, 'tumor-aorta enhancement ratio', which was calculated by dividing enhancement of pancreatic cancer by enhancement of abdominal aorta in each phase. These enhancement patterns were correlated with the level of vascular endothelial growth factor (VEGF), microvessel density (MVD), and extent of fibrosis.RESULTS: The absolute enhanced value in the arterial phase correlated with the level of VEGF and MVD (P=0.047, P=0.001). The relative enhanced value in arterial phase and tumor-aorta enhancement ratio (arterial) correlated with MVD (P=0.003, P=0.022). Tumor-aorta enhancement ratio (arterial) correlated negatively with the extent of fibrosis (P=0.004). The tumors with greater MVD and higher expression of VEGF tended to show high enhancement in the arterial dominant phase. On the other hand, the tumors with a larger amount of fibrosis showed a negative correlation with the grade of enhancement during the arterial phase.CONCLUSION: Enhancement patterns on dynamic CT correlated with angiogenesis and may be modified by the extent of fibrosis. | Yuki Hattori Toshifumi Gabata Osamu Matsui Kentaro Mochizuki Hirohisa Kitagawa Masato Kayahara Tetsuo Ohta Yasuni Nakanuma | 2009 | World Journal of Gastroenterology2009，15，25： | 15 |
| 4 | Sentinel Node Mapping for Gastric Cancer: A Prospective Multicenter Trial in Japan显示文摘 | Yuko Kitagawa Hiroya Takeuchi Yu Takagi Shoji Natsugoe Masanori Terashima Nozomu Murakami Takashi Fujimura Hironori Tsujimoto Hideki Hayashi Nobunari Yoshimizu Akinori Takagane Yasuhiko Mohri Kazuhito Nabeshima Yoshikazu Uenosono Shinichi Kinami Junichi S | 2013 | Journal of Clinical Oncology2013，，29： | 11 |
| 5 | Co-occurrence prediction in a large location-based social network显示文摘 | Rong-Hua LI Jianquan LIU Jeffrey Xu YU Hanxiong CHEN Hiroyuki KITAGAWA | 2013 | Frontiers of Computer Science2013，7，2： | 10 |
| 6 | Consensus of primary care in acute pancreatitis in Japan显示文摘在日本的尖锐胰腺炎的发生正在增加并且每百万张人口从 187 ~ 347 个盒子。盒子命运是 0.2% 为对温和中等,并且 9.0% 为在在 2003 的日本的严重尖锐胰腺炎。在日本的胰腺炎的专家做了与尖锐胰腺炎在病人的早管理集中于实际方面的这个文件。尖锐胰腺炎和严厉层化的正确诊断应该为尖锐胰腺炎的诊断用标准在所有病人被做并且多,因素得分系统尽早由胰的难处理的疾病的研究委员会求婚了。与尖锐胰腺炎诊断的所有病人应该在医院里被管理。血压监视,脉搏和呼吸率,体温,时时尿的体积,和血氧饱和水平在如此的病人的管理是必要的。早精力旺盛的静脉内的水和具有最前的重要性稳定循环动力学。有鸦片剂的足够的疼痛地势也是重要的。在严重尖锐胰腺炎,在一个早阶段的抗菌素的预防静脉内的管理被推荐。一旦尖锐胰腺炎的诊断被证实,朊酶禁止者的管理应该被开始。如果没有肠塞痛并且胃肠的流血的清楚的症状,从早舞台用非肠道的营养喂的肠内的联合被推荐。有严重尖锐胰腺炎的病人应该尽早被转移到 ICU 执行象朊酶的连续地区性的动脉的注入那样的特殊措施禁止者和抗菌素,和连续牙齿过敏过滤。日本政府为难处理的疾病作为关于措施的研究的工程之一为严重尖锐胰腺炎盖住医疗保健开销。 | Makoto Otsuki Masahiko Hirota Shinju Arata Masaru Koizumi Shigeyuki Kawa Terumi Kamisawa Kazunori Takeda Toshihiko Mayumi Motoji Kitagawa Tetsuhide Ito Kazuo Inui Tooru Shimosegawa Shigeki Tanaka Keisho Kataoka Hiromitsu Saisho Kazuichi Okazaki Yosikazu Kuroda Norio Sawabu Yoshifumi Takeyama | 2006 | World Journal of Gastroenterology2006，12，21： | 9 |
| 7 | Early gastric cancer diagnostic ability of ultrathin endoscope loaded with laser light source显示文摘BACKGROUND Conventionally, the low luminous intensity, low image resolution, and difficulty in operation have been reported with the ultrathin endoscope. However, it has markedly advanced recently. The improvement of the diagnostic ability is expected.AIM To compare the early gastric cancer diagnostic ability of an ultrathin endoscope loaded with a laser light source and that of the conventional endoscope.METHODS The target subjects were 375 consecutive patients who underwent endoscopy at our hospital for post-endoscopic submucosal dissection follow-up of gastric cancer from January to August 2018. During endoscopy, the ultrathin endoscope was used in 140 patients(37.3%), and the conventional endoscope was used in235 patients(62.7%). Patient background was adjusted using the propensity score matching method, and gastric cancer detection ability was evaluated in the two groups.RESULTS The gastric cancer detection rate was 7.8% in the ultrathin endoscope group and7.0% in the conventional endoscope group, and the mean intragastric observation time was 4.1 ± 1.7 min in the ultrathin endoscope group and 4.1 ± 1.9 min in the conventional endoscope group, showing no significant differences between the groups. Moreover, the biopsy implementation rate was 31.8% in the ultrathin endoscope group and 41.1% in the conventional endoscope group, and the biopsy prediction rate was 17.9% and 13.2%, respectively, showing no significant differences between the groups.CONCLUSION The gastric cancer diagnostic ability of the ultrathin endoscope loaded with a laser light source was comparable to that of the conventional endoscope. The observation time was also comparable. Thus, endoscopy using the ultrathin endoscope loaded with the laser light source would be the first option in screening examinations of gastric cancer due to its low invasion. | Takuto Suzuki Yoshiyasu Kitagawa Rino Nankinzan Taketo Yamaguchi | 2019 | World Journal of Gastroenterology2019，25，11： | 7 |
| 8 | Prostate-specific antigen-based population screening for prostatecancer: current status in Japan and future perspective in Asia显示文摘在西方的国家,屏蔽的前列腺癌症上的临床的试用为耐心的幸存表明了一个有限好处。在亚太区域,包括日本,测试与西方的国家相比很低的遗体的前列腺特定的抗原(PSA ) 的率,和基于人口的屏蔽的好处仍然保持不清楚。这评论描述人口在日本为前列腺癌症屏蔽和诊断的当前的地位并且讨论人口为亚洲人口屏蔽的功效。自从 1990 年代,屏蔽系统被各市政的管理在日本管理了,并且处于前列腺癌症死亡率减少在到屏蔽的 PSA 的暴露率显著地增加了的一些区域被期望。在人口屏蔽被开始以后,一个基于人口的屏蔽队表明在逐渐地屏蔽检测的癌症的变形疾病的比例与高浆液 PSA 层次在癌症的比例根据增加的暴露率,和一个减少的趋势减少了。人口屏蔽检测的前列腺癌症的预后被表明比在屏蔽的人口外面诊断的那些更有利。在屏蔽队的最近的结果表明了 PSA 的功效。关于在日本的基于人口的屏蔽的这些最近的证据可以贡献建立在亚洲个人屏蔽系统的最佳的前列腺癌症。 | Yasuhide Kitagawa Mikio Namiki | 2015 | Asian Journal of Andrology2015，17，3： | 7 |
| 9 | Usefulness of urinary trypsinogen-2 and trypsinogen activation peptide in acute pancreatitis:A multicenter study in Japan显示文摘BACKGROUND Rapid urinary trypsinogen-2 dipstick test and levels of urinary trypsinogen-2 and trypsinogen activation peptide(TAP) concentration have been reported as prognostic markers for the diagnosis of acute pancreatitis.AIM To reconfirm the validity of all these markers in the diagnosis of acute pancreatitis by undertaking a multi-center study in Japan.METHODS Patients with acute abdominal pain were recruited from 17 medical institutions in Japan from April 2009 to December 2012. Urinary and serum samples were collected twice, at enrollment and on the following day for measuring target markers. The diagnosis and severity assessment of acute pancreatitis were assessed based on prognostic factors and computed tomography(CT) Grade of the Japanese Ministry of Health, Labour, and Welfare criteria.RESULTS A total of 94 patients were enrolled during the study period. The trypsinogen-2 dipstick test was positive in 57 of 78 patients with acute pancreatitis(sensitivity,73.1%) and in 6 of 16 patients with abdominal pain but without any evidence of acute pancreatitis(specificity, 62.5%). The area under the curve(AUC) score of urinary trypsinogen-2 according to prognostic factors was 0.704, which was highest in all parameter. The AUC scores of urinary trypsinogen-2 and TAP according to CT Grade were 0.701 and 0.692, respectively, which shows higher than other pancreatic enzymes. The levels of urinary trypsinogen-2 and TAP were significantly higher in patients with extended extra-pancreatic inflammation as evaluated by CT Grade.CONCLUSION We reconfirmed urinary trypsinogen-2 dipstick test is useful as a marker for the diagnosis of acute pancreatitis. Urinary trypsinogen-2 and TAP may be considered as useful markers to determine extra-pancreatic inflammation in acute pancreatitis. | Hiroaki Yasuda Keisho Kataoka Yoshifumi Takeyama Kazunori Takeda Tetsuhide Ito Toshihiko Mayumi Shuji Isaji Tetsuya Mine Motoji Kitagawa Seiki Kiriyama Junichi Sakagami Atsushi Masamune Kazuo Inui Kenji Hirano Ryukichi Akashi Masamichi Yokoe Yoshio Sogame Kazuichi Okazaki Chie Morioka Yasuyuki Kihara Shigeyuki Kawa Masao Tanaka Akira Andoh Wataru Kimura Isao Nishimori Junji Furuse Isao Yokota Tooru Shimosegawa | 2019 | World Journal of Gastroenterology2019，25，1： | 7 |
| 10 | The increase in surface CXCR4 expression on lung extravascular neutrophils and its effects on neutrophils during endotoxin-induced lung injury显示文摘Inflammatory stimuli,such as a microbes or lipopolysaccharides,induce a rapid release of neutrophils from the bone marrow and promote neutrophil migration into inflamed sites to promote host defense.However,an excess accumulation and retention of neutrophils in inflamed tissue can cause severe tissue injuries in the later stages of inflammation.Recent studies have reported that both CXCL12 levels in injured lungs and its receptor,CXCR4,on accumulated neutrophils in injured lungs,increased;furthermore,these studies showed that the CXCL12/CXCR4 signaling pathway participated in neutrophil accumulation in the later stages of lipopolysaccharide(LPS)-induced lung injury.However,the mechanisms underlying this increase in surface CXCR4 expression in neutrophils remain unclear.In this study,we found that surface CXCR4 expression increased in extravascular,but not intravascular,neutrophils in the lungs of LPS-induced lung injury model mice.Furthermore,ex vivo studies revealed that CXCL12 acted not only as a chemoattractant,but also as a suppressor of cell death for the lung neutrophils expressing CXCR4.Sulfatide,one of the native ligands for L-selectin,induced the increase of surface CXCR4 expression on isolated circulating neutrophils,suggesting that the activation of L-selectin may be involved in the increase in surface CXCR4.Our findings show that surface CXCR4 levels on neutrophils increase after extravasation into injured lungs,possibly through the activation of L-selectin.The CXCL12/CXCR4 signaling pathway plays an important role in the modulation of neutrophil activity during acute lung injury,not only by promoting chemotaxis but also by suppressing cell death. | Mitsuhiro Yamada Hiroshi Kubo Seiichi Kobayashi Kota Ishizawa Mei He Takaya Suzuki Naoya Fujino Hiroyuki Kunishima Masamitsu Hatta Katsushi Nishimaki Tetsuji Aoyagi Kouichi Tokuda Miho Kitagawa Hisakazu Yano Hirokazu Tamamura Nobutaka Fujii Mitsuo Kaku | 2011 | Cellular & Molecular Immunology2011，8，4： | 6 |
| 11 | Colon perforation due to antigenemia-negative cytomegalovirus gastroenteritis after liver transplantation: A case report and review of literature显示文摘BACKGROUND Cytomegalovirus(CMV) remains a critical complication after solid-organ transplantation. The CMV antigenemia(AG) test is useful for monitoring CMV infection. Although the AG-positivity rate in CMV gastroenteritis is known to be low at onset, almost all cases become positive during the disease course. We treated a patient with transverse colon perforation due to AG-negative CMV gastroenteritis, following a living donor liver transplantation(LDLT).CASE SUMMARY The patient was a 52-year-old woman with decompensated liver cirrhosis as a result of autoimmune hepatitis who underwent a blood-type compatible LDLT with her second son as the donor. On day 20 after surgery, upper and lower gastrointestinal endoscopy(GE) revealed multiple gastric ulcers and transverse colon ulcers. The biopsy tissue immunostaining confirmed a diagnosis of CMV gastroenteritis. On day 28 after surgery, an abdominal computed tomography revealed transverse colon perforation, and simple lavage and drainage were performed along with an urgent ileostomy. Although the repeated remission and aggravation of CMV gastroenteritis and acute cellular rejection made the control of immunosuppression difficult, the upper GE eventually revealed an improvement in the gastric ulcers, and the biopsy samples were negative for CMV. The CMV-AG test remained negative, therefore, we had to evaluate the status of the CMV infection on the basis of the clinical symptoms and GE.CONCLUSION This case report suggests a monitoring method that could be useful for AGnegative CMV gastroenteritis after a solid-organ transplantation. | Takahiro Yokose Hideaki Obara Masahiro Shinoda Yutaka Nakano Minoru Kitago Hiroshi Yagi Yuta Abe Yohei Yamada Kentaro Matsubara Go Oshima Shutaro Hori Sho Ibuki Hisanobu Higashi Yuki Masuda Masanori Hayashi Miho Kawaida Takehiko Mori Takumi Fujimura Ken Hoshino Kaori Kameyama Tatsuo Kuroda Yuko Kitagawa | 2019 | World Journal of Gastroenterology2019，25，15： | 5 |
| 12 | Sclerosing epithelioid fibrosarcoma of the liver infiltrating the inferior vena cava显示文摘Sclerosing epithelioid fibrosarcoma (SEF) is a rare and distinct variant of fibrosarcoma, composed of epithelioid tumor cells arranged in strands, nests, cords, or sheets embedded within a sclerotic collagenous matrix. We report a 39-year-old man with SEF of the liver, which infiltrated the inferior vena cava (IVC). The SEF of the liver was successfully resected, and the infiltrated IVC was also removed together with the liver tumor. Histopathological examination of the tumor showed typical histopathology of SEF. Immunohistochemically, the tumor was positive for vimentin. Recurrence was noted 7 mo after surgery. After chemotherapy, the recurrent tumor was resected surgically, and histopathological examination showed similar findingsto those of the primary tumor. To our knowledge, this is the first report of SEF of the liver with tumor invasion of the IVC. | Yoshito Tomimaru Hiroaki Nagano Shigeru Marubashi Shogo Kobayashi Hidetoshi Eguchi Yutaka Takeda Masahiro Tanemura Toru Kitagawa Koji Umeshita Nobuyuki Hashimoto Hideki Yoshikawa Kenichi Wakasa Yuichiro Doki Masaki Mori | 2009 | World Journal of Gastroenterology2009，15，33： | 5 |
| 13 | Lymphomatoidgastropathy mimicking extranodal NK/T cell lymphoma,nasal type:A case report显示文摘Extranodal natural killer(NK)/T-cell lymphoma,nasal type,exhibits aggressive tumor behavior and carries a poor prognosis.Recently,lymphomatoid gastropathy with NK/T cell infiltration into gastric mucosa has been recognized as a pseudo-malignant disease which regresses without treatment.Because the conventional immunohistochemical criteria of lymphomatoid gastropathy is similar to that of extranodal NK/T-cell lymphoma nasal type,it is difficult to distinguish between the two conditions by histopathological evaluation only.Here,we report a rare case of lymphomatoid gastropathy in a 57-year-old female.Gastroendoscopy on routine check-up revealed elevated reddish lesions < 1 cm in diameter in the gastric fornix and body.Although repeat endoscopies at 1 and 6 mo later revealed no gastric lesions at any locations without any treatments,at 12 mo later gastric lymphomatoid lesions recurred at gastric fornix and body.Histological examination of endoscopic biopsy specimens at 12 mo showed atypical NK cell infiltration with CD3+,CD4-,CD5-,CD7+,CD8-,CD20-,CD30-,CD56+,CD79a-and T-cell-restricted intracellular antigen-1+ into gastric mucosa.After treatment for Helicobacter pylori(H.pylori) eradication,the lesions disappeared in all locations of the gastric fornix and body over the subsequent 12 mo.Here,we report a case of H.pylori-positive lymphomatoid gastropathy with massive NK-cell proliferation,and also review the literature concerning newly identified lymphomatoid gastropathy based on comparison of extra nodal NK/T-cell lymphoma nasal type.In any case,these lesions are evaluated with biopsy specimens,the possibility of this benign entity should be considered,and excessive treatment should be carefully avoided.Close follow-up for this case of lymphomatoid gastropathy is necessary to exclude any underlying malignancy. | Tomohiro Terai Mitsushige Sugimoto Hiroki Uozaki Tetsushi Kitagawa Mana Kinoshita Satoshi Baba Takanori Yamada Satoshi Osawa Ken Sugimoto | 2012 | World Journal of Gastroenterology2012，18，17： | 5 |
| 14 | Understanding prostate-specific antigen dynamics in monitoring metastatic castration-resistant prostate cancer: implications for clinical practice显示文摘象为变形阉割抵抗的前列腺癌症(CRPC ) 的 docetaxel 和 cabazitaxel 治疗一样的新奇神经质的治疗的可获得性在没有前进的幸存和全面幸存与改进为这组病人改变了眼界。医生们经常用浆液诊断前列腺癌症的前进前列腺特定的抗原(PSA ) 。然而,浆液 PSA 总是没在 CRPC 与临床的地位被相关。与更大的精确评估 PSA 动力学, PSA 并且 CRPC 的开发的机制的控制的理解被需要。而且,与最佳地改进预后和病人的 QOL 的适当预定使用新神经质的治疗是必要的。在现在的评论,我们查明 PSA 动力学和 CRPC 的发展的机制为 mCRPC 在新治疗的最佳的利用帮助。 | Atsushi Mizokami Kouji Izumi Hiroyuki Konaka Yasuhide Kitagawa Yoshifumi Kadono Kazutaka Narimoto Takahiro Nohara Amit K Bahl Mikio Namiki | 2017 | Asian Journal of Andrology2017，19，2： | 5 |
| 15 | 1-溴丙烷引发雄性大鼠性腺基因表达谱的变化显示文摘目的研究1-溴丙烷(1-BP)诱发大鼠性腺基因表达谱的变化,探索1-BP雄性生殖毒性相关的mRNA改变。方法雄性F344/NSIc大鼠12只,随机分为2组,分别吸入新鲜空气或5030mg/m31-BP8h。染毒后16h处死大鼠取出睾丸,运用大鼠性腺cDNA微阵列和real-timePCR方法测定1-BP染毒后性腺相关基因表达谱的变化。结果在大鼠性腺芯片5087个cDNA微点阵中,有62个基因被1-BP显著下调,3个基因显著上调。其中包括性激素合成相关基因细胞色素P450芳香化酶(CYP19a),谷胱苷肽S-转移酶(GSTT1),肌酸激酶(Ckb),髓鞘和淋巴细胞蛋白(Mal)和S100的钙结合蛋白(S100a4)。归类分析结果显示绝大多数变化的基因与蛋白质/脂类代谢相关,其次与应激防御反应相关。实时定量PCR证实了1-BP可引起CYP19a、S100a4、GSTT1和Mal的下调。结论急性高剂量染毒1-BP可引起睾丸组织CYP19a、S100a4、GSTT1、Mal等基因的下调,提示其可能通过内分泌干扰和氧化应激效应而导致雄性生殖毒性。 | 李卫华 市原学 王海兰 Kitagawa Emiko Iwahashi Hitoshi 丁训诚 周志俊 | 2010 | 卫生研究2010，39，2： | 5 |
| 16 | New Sentinel Node Mapping Technologies for Early Gastric Cancer显示文摘 | Hiroya Takeuchi Yuko Kitagawa | 2013 | Annals of Surgical Oncology2013，，2： | 5 |
| 17 | 松嫩平原西部碱尘气溶胶的元素特征分析显示文摘碱尘暴期间松嫩平原西部碱尘气溶胶的主要元素质量浓度排序为Na、Al、Fe、Ca、Mg、K、Ti、Ba、Zn,与当地盐碱化土壤的元素组成吻合,而与沙尘、城市气溶胶的元素组成有差别。风力对碱尘气溶胶元素组成有明显的影响,当风速在8.0~17.1m/s时,元素组成的质量浓度排序为Na、Ca、Al、Fe、Mg、K、Ba、Ti、Zn。Na元素质量浓度的激增是碱尘暴元素组分的一大特征,明显富集元素为Na和B;相对于当地背景大气气溶胶的富集情况,Zn、Cu、Ba、B的富集因子值在碱尘暴期间明显降低;在各种天气情况下,B、Cu均具有较高的富集因子。碱尘中Ti元素的富集因子值均小于1,而Ca、Fe、K、Mg、Mn、Sr、V的富集因子值为1~4。两个采样点的Ca、Na、Al、Fe、Mg、Ti、Zn的富集因子近似,表明该区碱尘的主要元素具有特定的一致性;而B、Ba、Cu、V的富集因子相差较大,可以作为区分不同碱尘源的标志性元素。 | 胡克 陈兵 Hiroyuki Kitagawa 介冬梅 赵奎涛 | 2006 | 吉林大学学报(地球科学版)2006，36，3： | 5 |
| 18 | Cutting edge of endoscopic full-thickness resection for gastric tumor显示文摘Recently,several studies have reported local full-thickness resection techniques using flexible endoscopy for gastric tumors,such as gastrointestinal stromal tumors,gastric carcinoid tumors,and early gastric cancer(EGC). These techniques have the advantage of allowing precise resection lines to be determined using intraluminal endoscopy. Thus,it is possible to minimize the resection area and subsequent deformity. Some of these methods include:(1) classical laparoscopic and endoscopic cooperative surgery(LECS);(2) inverted LECS;(3) combination of laparoscopic and endoscopic approaches to neoplasia with non-exposure technique; and(4) non-exposed endoscopic wall-inversion surgery. Furthermore,a recent prospective multicenter trial of the sentinel node navigation surgery(SNNS) for EGC has shown acceptable results in terms of sentinel node detection rate and the accuracy of nodal metastasis. Endoscopic full-thickness resection with SNNS is expected to become a treatment option that bridges the gap between endoscopic submucosal dissection and standard surgery for EGC. In the future,the indications for these procedures for gastric tumors could be expanded. | Tadateru Maehata Osamu Goto Hiroya Takeuchi Yuko Kitagawa Naohisa Yahagi | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，16： | 4 |
| 19 | 应力比对WC-Co硬质合金疲劳寿命及裂纹生长行为的影响(英文)显示文摘通过两种疲劳试验:旋转弯曲疲劳试验和3-或4-点弯曲疲劳试验测试细晶WC-Co硬质合金的裂纹生长行为和疲劳寿命。疲劳试验结果表明:所测试的大部分WC-Co硬质合金的疲劳寿命取决于裂纹生长周期。利用断裂力学基本方程推导出疲劳裂纹生长速率(da/dN)和最大应力强度因子(Kmax)的关系。根据此关系,获得材料的强度因子阈值(Kth)和疲劳断裂韧性值(Kfc)。基于修正的线性弹性断裂力学方程,对WC-Co硬质合金材料的疲劳寿命进行计算,疲劳寿命的计算结果与实验结果吻合较好。 | Hiroko MIKADO Sotomi ISHIHARA Noriyasu OGUMA Kenichi MASUDA Syo KITAGAWA Shingo KAWAMURA | 2014 | Transactions of Nonferrous Metals Society of China2014，24，S1： | 4 |
| 20 | [Cu(Hsal)_2(py)_2]_n晶体结构和二维堆积网络显示文摘The title complex, [Cu(Hsal)2(py)2], was synthesized by layered solution technique and structurally characterized by single crystal X ray. The copper atom has a square pyramidal geometry and the coordination number is five. The molecular structure is linear one dimensional network. There is a stacking effect between pyridine ligands of neighbouring 1 D chains and the molecular structure is extended into two dimensional stacking network. Two salicylates in the complex have a position of crab pincers like, in which one salicylate is unidentate and another coordinates through the carboxylate group and phenyl group unidentately. | 朱龙观 蔡国强 Susumu Kitagawa Ho-Chol Chang | 2002 | 无机化学学报2002，18，9： | 4 |
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