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Reflection Asymmetric Shapes in the Neutron-Rich ^(140,143)Ba Isotopes

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Chinese Physics Letters 1997年第8期14卷 569-572页

作者： ZHU Sheng-j.ang WANG Mu-ge j.H.Hamilton A.V.Ramayya B.R.S.Babu W.C.Ma LONG Gui-lu DENG j.ng-kang ZHU Ling-yan LI Ming T.N.Ginter j.Komicki j.D.Cole R.Aryaeinej.dv Y.K.Dardenne M.W.Drigert j.O.rasmussen Yu.Ts.Oganessian M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee N.R.j.hnson F.K.McGowan Department of Physics Tsinghua UniversityBeijing 100084 Department of Physics Vanderbilt UniversityNashvilleTN 37235U.S.A. Department of Physics Mississippi State UniversityMS 39762U.S.A. daho National Engineering Laboratory Idaho FallsID 83415U.S.A. Lawrence Berkeley Laboratory BerkeleyCA 94720U.S.A. Oak Ridge National Laboratory Oak RidgeTN 37831U.SA.

Level schemes for the neutron-rich ^(140,143)Ba nuclei have been determined by study of promptγ-rays in spontaneous fission of ^(252)*** level pattern and enhanced E1 transitions betweenπ=+andπ=-bands show reflection asymmetric shapes with simplex quantum number s=+1 in ^(140)Ba and s=±i in ^(143)Ba,*** octupole deformation stability with spin variation has been discussed.

关键词： bands transitions

Octupole Deformation Bands of πh_(11/2) in Neutron-Rich 145,147La Nuclei

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Chinese Physics Letters 1999年第3期16卷 169-171页

作者： ZHU Sheng-j.ang WANG Mu-ge j.H.Hamilton A.V.Ramayya B.R.S.Babu W.C.Ma LONG Gui-lu ZHU Ling-yan LI Ming A.Sakhaee GAN Cui-yun YANG Li-ming j.Komicki j.D.Cole R.Aryaeinej.d M.W.Drigert j.O.rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee Yu.Ts.Oganessian G.M.Ter-Akopian A.V.Daniel Department of Physics Tsinghua UniversityBeijing 100084 Department of Physics Vanderbilt UniversityNashvilleTN 37235USA Department of Physics Mississippi State UniversityMS 39762USA Idaho National Engineering Laboratory Idaho FallsID 83415USA Lawrence Berkeley Laboratory BerkeleyCA 94720USA j.int Institute for Nuclear Research Dubna 141980Russia

Octupole deformation bands built onπh ll/2 orbital in neutron-rich odd-Z 145,147La nuclei have been investigated by measuring the promptγ-rays emitted from the 252Cf *** alternating parity band structures and strong E1 transitions observed between negative-and positive-parity bands in both nuclei indicate the octupole deformation enhanced by the h ll/2 single proton *** to observed energy displacements the octupole deformation becomes stable at the intermediate spin states.

关键词： coupling. bands parity

Recent Progress of Research on Multi-phonon γ-Bands in A～100 Neutron-Rich Nuclei

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Recent Progress of Research on Multi-phonon γ-Bands in A～1...

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： j.H.Hamilton A.V.Ramayya j.K.Hwang j.O.rasmussen I.Y.Lee E.Y.Yeoh Department of Physics Vanderbilt UniversityNashvilleTennessee 37235USA Department of Physics Mississippi State UniversityMississippi StateMississippi 39762USA Department of Physics Tsinghua UniversityBeijing 100084People’s Republic of China

Multi-phonon excitation in deformed nuclei is an impotent topic in research on nuclear structure. Up to now,the one-phononγ-vibrational（1-γ） bands have been observed in many ***,it is difficult to observe the two-phononγ-vibrational（2-γ） *** to now,only few 2-γbands were observed in A～170 and 220 regions,for examples,in Er,Dy and *** the A～100 neutron rich nuclei,2-γbands were reported in Mo in earlier *** our work,no 2-γband was identified in odd-A *** identify 2-γband in odd-A nuclei is important to understand nuclear single-particle motion and collective motion and to develop the nuclear model *** we report on recent progress of research on two-phononγ-bands in A00 neutron-rich nuclei by our cooperative group.

关键词： spontaneous fission neutron-rich nuclei multi-phononγ-bands

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激发内驱力

Collective Band Structures in the Neutron-Rich ^(107,109)Ru Nuclei

作者： (美)特蕾莎·M·阿马比尔(teresa M. Amabile) (美)史蒂文·j.克雷默(Steven j. Kramer)

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Chinese Physics Letters 1998年第11期15卷 793-795页

作者： ZHU Sheng-j.ang GAN Cui-yun j.H.Hamilton A.V.Ramayya B.R.S.Babu M.Sakhaee W.C.Ma LONG Gui-lu DENG j.ng-kang ZHU Ling-yan LI Ming YANG Li-ming j.Komicki j.D.Cole R.Aryaeinej.d Y.K.Dardenne M.W.Drigert j.O.rasmussen M.A.Stoyer S.Y.Chu K.E.Gregorich M.F.Mohar S.G.Prussin I.Y.Lee N.R.j.hnson F.K.McGowan Departmet of Physics Tsinghua UniversityBeijing 100084 Department of Physics Vanderbilt UniversityNashvilleTN 37235USA Department of Physics Mississippi State UniversityMS 39762USA Idaho National Engineering Laboratory Idaho FallsID 83415USA Lawrence Berkeley Laboratory BerkeleyCA 94720USA Oak Ridge National Laboratory Oak RidgeTN 37831USA

The levels in neutron-rich odd-A ^(107,109)Ru nuclei have been investigated by using γ -γ -and γ -γ -γ-coincidence studies of the prompt γ-rays from the spontaneous fission of 252Cf. The ground state bands and the negative parity bands are identified and expanded in both nuclei. Triaxial rotor plus particle model calculations indicate the ground state bands originate from v(d_(5/2)+g_(7/2)) quasiparticle configurations and the negative parity bands are from vh_(11/2) orbital.

关键词： bands parity

循证药物治疗依从性和急性心肌梗死远期死亡率的关系

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世界核心医学期刊文摘（心脏病学分册） 2007年第7期3卷 4-5页

作者： rasmussen j.N. Alter D.A. 黄浙勇 Institute for Clinical Evaluative Sciences 2075 Bayview Ave Toronto Ont. M4N 3M5 Canada Dr.

背景：药物依从性对存活率的影响程度如何尚不为人知，部分原因在于死亡率差异可能更多地源自“健康遵从效应”行为特性，而不是药物治疗作用。目的：探讨药物治疗依从性与急性心肌梗死（AMI）存活患者死亡率的关系。设计、地点和参与... 详细信息

背景：药物依从性对存活率的影响程度如何尚不为人知，部分原因在于死亡率差异可能更多地源自“健康遵从效应”行为特性，而不是药物治疗作用。目的：探讨药物治疗依从性与急性心肌梗死（AMI）存活患者死亡率的关系。设计、地点和参与者：该观察性纵向人群研究纳入1999-2003年加拿大安大略省31455例老年AMI存活者。所有患者被予以他汀类药物、β受体阻断剂或钙通道阻断剂（钙通道阻断剂缺乏改善存活率的循证医学证据，作为对照）。主要观察指标：患者被分为依从性高（依从天数百分比≥80％）、中（依从天数百分比40％～79％）和低（依从天数百分比〈40％）三类。应用多因素生存分析和倾向分析比较其远期死亡率（中位随访2．4年），分析中校正了社会人口统计学因素、疾病严重性、共病和同时采用的循证治疗手段等因素。

关键词：药物治疗依从性远期死亡率急性心肌梗死循证医学证据钙通道阻断剂社会人口统计学 β受体阻断剂药物依从性

壤中气CO_2在亚利桑那州北部含硫化物角砾岩筒勘探中的应用

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国外铀金地质 1992年第1期8卷 92-92,F003,69页

作者： A.R.Reid j.D.rasmussen 付锦

在3个角砾岩筒目标上花了一年多时间定期收集了壤中气样品,来评价亚利桑那州北部干燥环境中用于勘探硫化物的壤中气CO_2异常的有效性。它的异常与现代氧化程度、取样时节和氧化深度密切相关。异常在大雨几天以后和初春土壤潮湿时是最强... 详细信息

在3个角砾岩筒目标上花了一年多时间定期收集了壤中气样品,来评价亚利桑那州北部干燥环境中用于勘探硫化物的壤中气CO_2异常的有效性。它的异常与现代氧化程度、取样时节和氧化深度密切相关。异常在大雨几天以后和初春土壤潮湿时是最强的。这时,土壤潮湿对CO_2有屏蔽作用。壤中气样品可以探测到200多米深的氧化硫化物。显然,如果能考虑到季节的变化,壤中气CO_2法是勘探亚利桑那州北部含硫化物角砾岩筒的一种可行的地球化学方法。

关键词：角砾岩筒硫化物勘探土壤

Purification of the Drosophila melanogaster Proteins Inscuteable and Staufen Expressed in Escherichia coli

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Advances in Bioscience and Biotechnology 2015年第7期6卷 485-493页

作者： Xristo Zárate Megan M.McEvoy teresa Vargas-Cortez j.ssica j.Gómez-Lugo Claudia j.Barahona Elena Cantú-Cárdenas Alberto Gómez-Trevino Universidad Autónoma de Nuevo León Facultad de Ciencias QuímicasCd.UniversitariaSan Nicolás de los GarzaMéxico Department of Chemistry and Biochemistry University of ArizonaTucsonUSA

The proteins Inscuteable and Staufen are key components during asymmetric cell division of neuroblasts for the development of Drosophila melanogaster. Expression and purification of both proteins has been a difficult task for structure-function studies. Based on codon optimization for protein expression in Escherichia coli, we have been able to produce, in soluble form, the C-terminal domains of Inscuteable and Staufen as chimeras with N-terminal maltose binding protein tag that contains a rigid linker between them for feasible crystallization. In addition, using an optimized synthetic gene, corresponding to the amino acid region 250 - 623 of Inscuteable fused to glutathione-S-transferase, low-scale expression experiments showed production of soluble protein. Finally, eukaryotic expression of Inscuteable in the methylothropic yeast Pichia pastoris failed to produce the Drosophila protein at detectable amounts, reinforcing the fact that E. coli still was the microorganism of choice for high-yield protein expression.

关键词： Inscuteable Staufen Protein Expression and Purification Maltose-Binding Protein Escherichia coli

Prevalence of Helicobacter pylori cagA and sabA Genotypes in Patients with Gastric Disease

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Advances in Microbiology 2019年第3期9卷 239-247页

作者： j.ssica Nunes Pereira Wilson A.Orcini Rita L.Peruquetti Marilia A.C.Smith Spencer L.M.Payao Lucas T.rasmussen Universidade do Sagrado Coracao(USC) BauruBrasil Universidade Federal de Sao Paulo(UNIFESP) Sao PauloBrasil

Gastric cancer is one of the most common types of cancer worldwide. Helicobacter pylori is considered one of the most important causes of this condition specially because of its virulence markers as sabA and cagA. Therefore, we aim to investigate the relation between these markers and the gastric diseases in 400 patients who underwent upper digestive endoscopy. To detect the bacteria and its genes by Polymerase Chain Reaction (PCR), the presence of H. pylori was significant when comparing the groups control vs. cancer (p value vs. chronic gastritis (p value cagA was statistically significant considering its presence when comparing the chronic gastritis vs. cancer groups (p value = 0.0434) OR [95% CI] 2.44 (1.021 - 5.845). Associating both sabA and cagA, we found a statistically significant result (p value vs. cancer groups. Helicobacter pylori is directly associated to gastric diseases such as gastritis and cancer and its virulence markers: sabA and cagA increase the inj.ry process to the gastric epithelium making the host more susceptible to cancer.

关键词： Stomach Neoplasms Helicobacter pylori sabA cagA