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1FBP、ASiR和VEO三种重建算法对常规剂量胸部CT图像质量的影响显示文摘目的探讨滤波反投影(FBP)、自适应统计迭代重建技术(ASiR)和基于模型的迭代重建算法(MBIR,商品名'VEO')三种重建技术对常规剂量胸部薄层CT图像质量的影响。方法应用能谱CT对15例成年患者行胸部增强CT扫描,扫描条件:100kVp,自动毫安,噪声指数15,螺距0.984∶1,球管转速0.4秒/圈。分别用FBP、50%ASiR(50%比例ASiR和FBP混合以降低噪声)和VEO三种重建算法对原始数据行0.625mm薄层重建,测量图像噪声及胸主动脉与背部肌肉的对比噪声比(CNR),并对3组图像分别进行质量评分,然后行对比分析。结果FBP、50%ASiR和VEO三组图像的噪声分别为24.30±3.55、17.11±2.55及11.69±1.74,50%ASiR和VEO组图像噪声分别较FBP组降低29.59%和51.89%(P均<0.01);胸主动脉与背部肌肉的CNR FBP、50%ASiR和VEO三组图像分别为10.56±3.05、15.15±3.88及21.69±5.62,50%ASiR和VEO组图像CNR较FBP组分别提高43.47%和105.40%(P均<0.01);图像质量主观评分FBP、50%ASiR和VEO三组图像分别为4.03±0.72、4.63±0.41及5.75±0.25,50%ASiR和VEO组图像较FBP组分别提高14.89%和42.68%(P均<0.01)。结论与FBP重建算法比较,在相同剂量条件下,50%ASiR和VEO能显著降低胸部CT图像噪声并提高图像质量;其中VEO重建算法降噪及提高图像质量效果更为显著。吴瑶媛 王万勤 刘斌 Isao Tanaka 张帅 2012中国医学影像技术2012,28,3:55
2Benefits of early postoperative jejunal feeding in patients undergoing duodenohemipancreatectomy显示文摘瞄准:学习早手术后的肠内的营养是否减少复杂并发症的发生或改进营养的地位追随者 duodenohemipancreatectomy (DHP ) 。方法:我们学习了为一个 peri-ampullary 团经历了 DHP 的 39 个病人。23 个病人收到了全部的父母营养然后开始有在手术后的白天(邮政部门) 之间的营养的口头的吸入 7 和 14 [晚手术后的肠内的营养(LPEN ) 组] 。十六个病人开始有肠内的在手术以后整个空肠造口术导管日子喂[早手术后的肠内的营养(EPEN ) 组] 。在早手术后的阶段的复杂并发症和实验室数据的发生在在 LPEN 和 EPEN 组之间的比较被学习。结果:在 EPEN 组的白朊和全部的蛋白质的浆液层次比在 LPEN 组的那些显著地高。身体团索引的损失显著地作为与 LPEN 组相比在 EPEN 组被压制。在操作比在 LPEN 组在 EPEN 组更快显著地被恢复以后,淋巴细胞计数立即减少了。EPEN 组显著地比 LPEN 组显示出手术后的胰腺的管,以及住院的显著地更短的长度的更少发生。在在二个组之间的另外的手术后的复杂并发症的发生没有有效差量,例如推迟的胃的倒空,外科的地点感染,胆管炎,和小肠阻塞。结论:EPEN 是为为一个 peri-ampullary 团经历了 DHP 的病人的一个安全、有益的机会。Takehiro Okabayashi Michiya Kobayashi Isao Nishimori Tekeki Sugimoto Toyokazu Akimori Tsutomu Namikawa Ken Okamoto Saburo Onishi Keijiro Araki 2006World Journal of Gastroenterology2006,12,1:23
3Biliary wound healing, ductular reactions, and IL-6/gp130 signaling in the development of liver disease显示文摘在胆汁的树上的 Basic 和翻译创伤愈合研究在皮和胃肠道上在类似的研究后面显著地落后。这是至少对为学习的胆道的容易的存取的缺乏部分可归因。但是临床的关联,对胆汁的上皮的房间(BEC ) 的更多的兴趣 BEC 文化的病理生理学,和普遍可获得性是颠倒这个趋势的因素。在额外肝的胆汁的树上,徒劳的创伤愈合,结疤,苛评开发紧迫发出。在损害的最小的 intra 肝的胆汁管任何一个, BEC 增长或繁的回答能贡献肝疾病。在大、小的胆汁管的慢性炎和坚持的创伤愈合反应经常导致肝癌症。当他们适用于胆道,依赖于表明小径的 IL-6/gp130/STAT3 的细胞的过程的重要性,未答复的问题,和未来方向,愈合的创伤的一般概念被讨论。A J Demetris John G Lunz Ⅲ Susan Specht Isao Nozaki 2006World Journal of Gastroenterology2006,12,22:15
4Machine-learning-assisted discovery of polymers with high thermal conductivity using a molecular design algorithm显示文摘The use of machine learning in computational molecular design has great potential to accelerate the discovery of innovative materials.However,its practical benefits still remain unproven in real-world applications,particularly in polymer science.We demonstrate the successful discovery of new polymers with high thermal conductivity,inspired by machine-learning-assisted polymer chemistry.This discovery was made by the interplay between machine intelligence trained on a substantially limited amount of polymeric properties data,expertise from laboratory synthesis and advanced technologies for thermophysical property measurements.Using a molecular design algorithm trained to recognize quantitative structure—property relationships with respect to thermal conductivity and other targeted polymeric properties,we identified thousands of promising hypothetical polymers.From these candidates,three were selected for monomer synthesis and polymerization because of their synthetic accessibility and their potential for ease of processing in further applications.The synthesized polymers reached thermal conductivities of 0.18–0.41 W/mK,which are comparable to those of state-of-the-art polymers in non-composite thermo-plastics.Stephen Wu Yukiko Kondo Masa-aki Kakimoto Bin Yang Hironao Yamada Isao Kuwajima Guillaume Lambard Kenta Hongo Yibin Xu Junichiro Shiomi Christoph Schick Junko Morikawa Ryo Yoshida 2019npj Computational Materials2019,,1:14
5Combined assessment of myocardial damage and electrical disturbance in chronic heart failure显示文摘AIM To investigate feasibility of combined assessment of biochemical and electrophysiological myocardial impairment markers risk-stratifying patients with chronic heart failure(CHF). METHODS Serum levels of heart-type fatty acid binding protein(H-FABP) as a marker of ongoing myocardial damage and QRS duration on electrocardiogram were measured at admission in 322 consecutive patients with CHF. A prolonged QRS duration was defined as 120 ms or longer. The cut-off value for H-FABP level(4.5 ng/mL) was determined from a previous study. Patients were prospectively followed during a median follow up period of 534 d. The primary endpoint was cardiac deaths and rehospitalization for worsening CHF.RESULTS There were 117 primary events, including 27 cardiac deaths and 90 rehospitalizations. Patients were stratified into four groups according to H-FABP level and QRS duration(≥ 120 ms). Multivariate analysis demonstrated that high H-FABP levels [hazard ratio(HR) = 1.745, P = 0.021] and QRS prolongation(HR1.612, P = 0.0258) were independent predictors of cardiac events. Kaplan-Meier analysis demonstrated that the combination of high H-FABP levels and QRS prolongation could be used to reliably stratify patients at high risk for cardiac events(log rank test P < 0.0001).CONCLUSION Combined assessment of myocardial damage and electrical disturbance can be used to risk-stratify patients with CHF.Shinpei Kadowaki Tetsu Watanabe Yoichiro Otaki Taro Narumi Yuki Honda Hiroki Takahashi Takanori Arimoto Tetsuro Shishido Takuya Miyamoto Isao Kubota 2017World Journal of Cardiology2017,9,5:14
6Differential diagnosis of benign and malignant branch duct intraductal papillary mucinous neoplasm using contrastenhanced endoscopic ultrasonography显示文摘AIM: To elucidate the role of contrast-enhanced endoscopic ultrasonography(CE-EUS) in the diagnosis of branch duct intraductal papillary mucinous neoplasm(BD-IPMN).METHODS: A total of 50 patients diagnosed with BDIPMN by computed tomography(CT) and endoscopic ultrasonography(EUS) at our institute were included in this study. CE-EUS was performed when mural lesions were detected by EUS. The diagnostic accuracy for identifying mural nodules(MNs) was evaluated by CT, EUS, and EUS combined with CE-EUS. In the patients who underwent resection, the accuracy of measuring MN height with each imaging modality was compared. The cut-off values to diagnose malignant BD-IPMNs based on MN height for each imaging modality were determined using receiver operating characteristic curve analysis.RESULTS: Fifteen patients were diagnosed with BD-IPMN with MNs and underwent resection. The remaining 35 patients were diagnosed with BD-IPMN without MNs and underwent follow-up monitoring. The pathological findings revealed 14 cases with MNs and one case without. The accuracy for diagnosing MNs was 92% using CT and 72% using EUS; the diagnostic accuracy increased to 98% when EUS and CE-EUS were combined. The accuracy for measuring MN height significantly improved when using CE-EUS compared with using CT or EUS(median measurement error value, CT: 3.3 mm vs CE-EUS: 0.6 mm, P < 0.05; EUS: 2.1 mm vs CE-EUS: 0.6 mm, P < 0.01). A cut-off value of 8.8 mm for MN height as measured by CE-EUS improved the accuracy of diagnosing malignant BDIPMN to 93%. CONCLUSION: Using CE-EUS to measure MN height provides a highly accurate method for differentiating benign from malignant BD-IPMN.Hirofumi Harima Seiji Kaino Shuhei Shinoda Michitaka Kawano Shigeyuki Suenaga Isao Sakaida 2015World Journal of Gastroenterology2015,21,20:12
7Treatment strategies for advanced hepatocellular carcinoma:Sorafenib vs hepatic arterial infusion chemotherapy显示文摘Sorafenib is used worldwide as a first-line standardsystemic agent for advanced hepatocellular carcinoma(HCC) on the basis of the results of two large-scale Phase Ⅲ trials. Conversely,hepatic arterial infusion chemotherapy(HAIC) is one of the most recommended treatments in Japan. Although there have been no randomized controlled trials comparing sorafenib with HAIC,several retrospective analyses have shown no significant differences in survival between the two therapies. Outcomes are favorable for HCC patients exhibiting macroscopic vascular invasion when treated with HAIC rather than sorafenib,whereas in HCC patients exhibiting extrahepatic spread or resistance to transcatheter arterial chemoembolization,good outcomes are achieved by treatment with sorafenib rather than HAIC. Additionally,sorafenib is generally used to treat patients with Child-Pugh A,while HAIC is indicated for those with either Child-Pugh A or B. Based on these findings,we reviewed treatment strategies for advanced HCC. We propose that sorafenib might be used as a first-line treatment for advanced HCC patients without macroscopic vascular invasion or Child-Pugh A,while HAIC is recommended for those with macroscopic vascular invasion or Child-Pugh A or B. Additional research is required to determine the best second-line treatment for HAIC non-responders with Child-Pugh B through future clinical trials.Issei Saeki Takahiro Yamasaki Masaki Maeda Takuro Hisanaga Takuya Iwamoto Koichi Fujisawa Toshihiko Matsumoto Isao Hidaka Yoshio Marumoto Tsuyoshi Ishikawa Naoki Yamamoto Yutaka Suehiro Taro Takami Isao Sakaida 2018World Journal of Hepatology2018,10,9:10
8炭纳米纤维-天然石墨复合材料的制备及其作为锂离子电池阳极材料的电化学性能(英文)显示文摘制备一种炭纳米纤维-天然石墨复合材料,以改善作为锂离子电池阳极材料的天然石墨的倍率性能。通过优化控制天然石墨上炭纳米纤维的生长量及其形状提高了天然石墨的循环性能和倍率性能。与天然石墨原料相比,炭纳米纤维-天然石墨复合材料第一次放电容量达到了95%。炭纳米纤维的生长量被严格地控制在天然石墨质量的15%以下。研究发现:由于炭纳米纤维对充放电过程中阳极的体积膨胀和收缩程度的控制作用,天然石墨表面边位上生长的类似常青藤形的炭纳米纤维对倍率性能的提高最为有效。提出采用炭纳米纤维-天然石墨复合材料的原理结构模型解释重复充放电过程中电极的体积稳定性。通过在石墨表面上生长类常青藤形炭纳米纤维而使得SEI(固体电解质界面)变薄并减少了充放电过程中阳极的体积变化,因而提高了倍率性能。Sang-Min Jang Jin Miyawaki Masaharu Tsuji Isao Mochida Seong-Ho Yoon 康飞宇 2010新型炭材料2010,25,2:9
9两个华支睾吸虫半胱氨酸蛋白酶的基因克隆、表达与定性(英文)显示文摘目的 寻找对华支睾吸虫病诊断有效的抗原基因,以便生物合成并研究其应用价值。方法 选取两个Genbank已报告的基因序列AF271091(CysA)及AF093242(CysB)分别克隆与表达融合蛋白,亲和层析纯化后进行免疫定性。结果 CysA与CysB均获得成功克隆与表达,Western blot分析显示CysA与华支睾吸虫病阳性血清有强反应,与日本血吸虫病阳性血清只有很弱的交叉反应,而CysA与华支睾吸虫感染血清无反应。免疫组化显示,被表达的两个半胱氨酸蛋白酶在华支睾吸虫体内的免疫定位无显著不同,主要在成虫肠道及虫卵。结论 成功表达的两个半胱氨酸蛋白酶中,CysB针对华支睾吸虫病血清有良好的抗原活性,值得视为诊断抗原候选做进一步的研究。裴福全 Isao Nagano 吴军 WuZhi-liang 崔惠儿 Yuzo Takahashi 潘波 方悦怡 2004热带医学杂志2004,4,1:9
10Impact of metastatic lymph node ratio in node-positive colorectal cancer显示文摘Colorectal cancer(CRC) is one of the most common malignant diseases in the world.Presently,the most widely used staging system for CRC is the tumor nodes metastasis classification system,which classifies patients into prognostic groups according to the depth of the primary tumor,presence of regional lymph node(LN) metastases,and evidence of distant metastatic spread.The number of LNs with confirmed metastasis is related to the severity of the disease,but this number depends on the number of LNs retrieved,which varies depending on patient age,tumor grade,surgical extent,and tumor site.Numerous studies and a recent structured review have demonstrated associated improvements in the survival of CRC patients with increasing numbers of LNs retrieved for examination.Hence,the impact of lymph node ratio(LNR),defined as the number of metastatic LNs divided by the number of LNs retrieved,has been investigated in various malignancies,including CRC.In this editorial,we review the literature demonstrating the clinicopathological significance of LNR in CRC pati-ents.Some reports have indicated the advantage of considering the LNR compared to the number of LNs retrieved and/or LN status.When the LNR is taken into consideration for survival analysis,the number of LNs retrieved and/or the LN status is not always found to be a prognostic factor.The cut-off points for LNRs were proposed in numerous studies.However,optimal thresholds for LNRs have not yet received consensus.It is still unclear whether the LNR has more prognostic validity than N stage.For all these reasons,the potential advantages of LNRs in the staging system should be investigated in large prospective data sets.Shingo Noura Masayuki Ohue Shingo Kano Tatsushi Shingai Terumasa Yamada Isao Miyashiro Hiroaki Ohigashi Masahiko Yano Osamu Ishikawa 2010World Journal of Gastrointestinal Surgery2010,2,3:7
11Recent developments in two-dimensional (2D) correlation spectroscopy显示文摘Recent noteworthy developments in the field of two-dimensional(2D) correlation spectroscopy are reviewed.2D correlation spectroscopy has become a very popular tool due to its versatility and relative ease of use.The technique utilizes a spectroscopic or other analytical probe from a number of selections for a broad range of sample systems by employing different types of external perturbations to induce systematic variations in intensities of spectra.Such spectral intensity variations are then converted into2 D spectra by a form of correlation analysis for subsequent interpretation.Many different types of 2D correlation approaches have been proposed.In particular,2D hetero-correlation and multiple perturbation correlation analyses,including orthogonal sample design scheme,are discussed in this review.Additional references to other important developments in the field of 2D correlation spectroscopy,such as projection correlation and codistribution analysis,were also provided.Isao Noda 2015Chinese Chemical Letters2015,26,2:7
12Usefulness 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 2019World Journal of Gastroenterology2019,25,1:7
13Nature:单核细胞SatM导致组织纤维化显示文摘在一项新的研究中,来自日本大阪大学免疫学前沿研究中心(IFReC)的研究人员报道了一类新的他们称之为SatM的单核细胞。针对小鼠的研究表明SatNI可能是导致组织纤维化的原因,而且成为一种治疗很少有有效疗法的疾病的新药物靶标。Takashi Satoh, Katsuhiro Nakagawa, Fumihiro Yamane, Kiyoharu Fukushima, Isao Ebina Shizuo Akira Takashi Satoh, Katsuhiro Nakagawa, Fumihiro Yamane, Kiyoharu Fukushima, Isao Ebina Shizuo Akira Fuminori Sugihara Yoshichika Yoshioka Ryusuke Kuwahara Motooki Ashihara, Yosuke Minowa Isao Ebina Atsushi Kumanogoh Atsushi Kumanogoh 2017现代生物医学进展2017,17,3:7
14Diagnosis and management of pancreatic neuroendocrine tumor in von Hippel-Lindau disease显示文摘The pancreatic manifestations seen in patients with von Hippel-Lindau(VHL) disease are subdivided into 2 categories:pancreatic neuroendocrine tumors(NET),and cystic lesions,including simple cyst and serous cystadenoma.The VHL-associated cystic lesions are generally asymptomatic and do not require any treatment,unless they are indistinguishable from other cystic tumor types with malignant potential.Because pancreatic NET in VHL disease are non-functioning and have malignant potential,it is of clinical importance to find and diagnose these as early as possible.It will be recommended that comprehensive surveillance using dynamic computed tomography for abdominal manifestations,including pancreatic NET,should start from the age of 15 years in VHL patients.Unlike sporadic non-functioning NET without VHL disease,in which surgical resection is generally recommended,VHL patients at lower metastatic risk of pancreatic NET should be spared the risks of operative resection.Kenji Tamura Isao Nishimori Tetsuhide Ito Ichiro Yamasaki Hisato Igarashi Taro Shuin 2010World Journal of Gastroenterology2010,16,36:6
15华支睾吸虫半胱氨酸蛋白酶的基因表达与在ELISA诊断上的应用研究(英文)显示文摘目的探讨重组华支睾吸虫半胱氨酸蛋白酶在华支睾吸虫病血清学诊断上的应用价值。方法以成虫cDNA为模板PCR扩增GenBank中一个华支睾吸虫半胱氨酸蛋白酶(No.AF093242,简称CysB)的部分基因片段,亚克隆到pTrcHis表达载体,转化入大肠埃希菌DH5α。表达出的重组蛋白经亲合层析纯化后用于ELISA检测华支睾吸虫及其他寄生虫感染血清,评价其诊断应用价值。结果成功克隆与表达CysB基因片段,纯化后的重组蛋白用于华支睾吸虫病诊断的敏感性达96.0%(48/50),与其他寄生虫病的总交叉反应为3.8%(1/26),而对比实验中可溶性粗抗原(CAA)用于检测的敏感性为88.0%(44/50),与其他寄生虫感染血清无交叉反应。结论重组华支睾吸虫半胱氨酸蛋白酶(CysB)用于ELISA诊断技术具有较高的敏感性及特异性,有希望成为可溶性粗抗原的替代之一。裴福全 Isao Nagano Zhiliang Wu 吴军 阮彩文 崔惠儿 Yuzo Takahashi 方悦怡 2005中国寄生虫病防治杂志2005,18,2:6
16Risk factors and prevention of biliary anastomotic complications in adult living donor liver transplantation显示文摘AIM: To evaluate risk factors of biliary anastomotic complications (BACs) and outcomes according to type of biliary reconstruction. METHODS: A total of 33 consecutive adult living donor liver transplantation (LDLT) were reviewed, 17 of which had undergone Duct-to-Duct anastomosis (D-D). The remaining 16 patients received Roux-en-Y anastomosis (R-Y). The perioperative factors, such as the type of graft and the number of graft bile ducts, were analyzed retrospectively. RESULTS: The overall incidence of BACs was 39.4%. The incidence of BACs was significantly higher in the patients with than without neoadjuvant chemotherapy (71.4% vs 10%, P = 0.050). There was no signifi cant difference in the incidence of biliary leakage in patients with D-D vs those with R-Y. The incidence of biliary strictures following the healing of biliary leakage was significantly higher in D-D (60%) than in R-Y (0%) (P = 0.026). However, the incidence of BACs related bacteremia was signifi cantly higher in R-Y than in D-D (71.4% vs 0%, P = 0.008). In D-D, use of T-tube stent remarkably reduced the incidence of BACs, compared with straight tube stent (0% vs 50%, P = 0.049). CONCLUSION: Our experience showed an increase of BACs related bacteremia in the patients with R-Y. Therefore, D-D might be a preferred biliary reconstruction. However, the surgical refi nement of D-D should be required because of the high incidence of biliary strictures. Use of the T-tube stent might lead to a signifi cant reduction of BACs in D-D.Satoshi Yamamoto Yoshinobu Sato Hiroshi Oya Hideki Nakatsuka Takashi Kobayashi Yoshiaki Hara Takaoki Watanabe Isao Kurosaki Katsuyoshi Hatakeyama 2007World Journal of Gastroenterology2007,13,31:6
17Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry显示文摘Atsushi Nashimoto Kohei Akazawa Yoh Isobe Isao Miyashiro Hitoshi Katai Yasuhiro Kodera Shunichi Tsujitani Yasuyuki Seto Hiroshi Furukawa Ichiro Oda Hiroyuki Ono Satoshi Tanabe Michio Kaminishi 2013Gastric Cancer2013,,1:6
18High false-negative proportion of intraoperative histological examination as a serious problem for clinical application of sentinel node biopsy for early gastric cancer: final results of the Japan Clinical Oncology Group multicenter trial JCOG0302显示文摘Isao Miyashiro Masahiro Hiratsuka Mitsuru Sasako Takeshi Sano Junki Mizusawa Kenichi Nakamura Atsushi Nashimoto Akira Tsuburaya Norimasa Fukushima 2014Gastric Cancer2014,,2:5
19900~2800K多晶石墨电阻率与温度的关系显示文摘1.前言石墨,在惰性气氛下有3300K以上的耐热性,加之它在导电、耐粒子等方面也显示优异的特性,因此作为超高温炉的发热体、宇航材料、原子反应堆用材料等被广泛利用。然而,测定1800K以上的物性,在设备和技术方面是困难的。目前超高温用石墨材料的设计是采用从低温区域得到的石墨数据外推值,再参考经验积累的推断值进行的。因此,开发能够高精度测量炭,石墨材料的电气、机械、高温特性的设备,进而确立可靠性高的评价技术就显得很迫切。有关3300K温度范围内的电导率,虽然美国,苏联已有报告发表,但测试设备和测试条件没有详细说明,并且测试的试样也只局限于特定的石墨种类。Masakazu Adachi Hiroshi Shioyama Masaki Narisawa Shigeru Ikeda kuniaki Tatsumi Isao Souma Hideo Isozaki kazunori Egawa Hirofumi Kyutoku Takesi Tanamura 刘培桐 1991炭素技术1991,10,4:4
20Rescue of white egg 1 mutant by introduction of the wildtype Bombyx kynurenine 3-monooxygenase gene显示文摘在蚕,白鸡蛋 1 (w-1 ) 异种,被白眼睛和白鸡蛋描绘,在 Bombyx kynurenine 3-monooxygenase (KMO ) 是缺乏的活动。Toinvestigate w-1 异种显型是否被介绍野类型的 KMO 基因救,我们在细胞质的肌动朊基因倡导者(A3KMO ) 或本国的 KMO 基因倡导者(KKMO ) 的控制下面与野类型的 Bombyx KMO 基因构造了转基因的蚕。我们与 KKMO 构造与 A3KMO 和一根线创造了二根转基因的线。在这些线的成年人的眼睛是棕色的,并且转基因的女性生的鸡蛋也是棕色的。Reversetranscription 聚合酶链反应(RT-PCR ) 分析证明 A3KMO 蚕线在中间勇气的、胖身体表示了抄本,并且肾小体小管。KKMO 线仅仅在胖身体表示了抄本并且肾小体小管。在转基因的线的眼睛和卵色的紧张与 KMO 表示水平成正比。有趣地,有 A3KMO 构造的转基因的幼虫有轻褐幼虫的表皮,而是 KKMO 线不。这些结果显示野类型的 KMO 基因能作为标记基因被使用视觉上屏蔽转基因的蚕。GUO-XING QUAN ISAO KOBAYASHI KATSURA KOJIMA KEIRO UCHINO TOSHIO KANDA HIDEKI SEZUTSU TORU SHIMADA TOSHIKI TAMURA 2007Insect Science2007,14,2:4
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