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Laser-Focused Atomic Deposition for Nanascale Grating

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Chinese Physics Letters 2011年第7期28卷 97-99页

作者： MA Yan li Tong-Bao WU Wen xiao yi-li ZHANG Ping-Ping GONG Wei-Gang Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology Department of PhysicsTongji UniversityShanghai 200092

Laser-focused atomic deposition is a technique with which nearly resonant light is used to pattern an atom *** solve the problem that the result of laser-cooled atoms cannot be monitored during the 30-min depositing time,we present a three-hole mechanically precollimated aperture apparatus.A 425 nm laser light standing wave is used to focus a beam of chromium atoms to fabricate the nanoscale *** period of the grating is 213±0.1 nm,the height is 4 nm and the full width at half miximum is 64±6 nm.

关键词： Focus chromium apparatus

Comparison of time-related electrical properties of PN junctions and Schottky diodes for Zn O-based betavoltaic batteries

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Nuclear Science and Techniques 2020年第2期31卷 55-66页

作者： xiao-yi li Jing-Bin Lu Ren-Zhou Zheng Yu Wang Xu Xu Yu-Min liu Rui He College of Physics Jilin UniversityChangchun 130012China East China University of Technology Nanchang 330013China

Schottky diodes and PN junctions were utilized as energy converting structures in ZnO-based betavoltaic batteries,in which 0.101121 Ci 63Ni was selected as the beta *** time-related electrical properties were obtained using Monte Carlo *** the n-type ZnO,the Pt/ZnO Schottky diode had the highest energy conversion efficiency,and the Ni/ZnO Schottky diode had the largest *** overall electrical performance of PN junctions is better than that of Schottky *** lifetimes of Pt/ZnO and Ni/ZnO are longer than for other Schottky devices,coming close to those of PN *** that Schottky diodes are easier to fabricate and independent of p-type semiconductors,Pt/ZnO and Ni/ZnO diodes offer alternatives to PN-junction-based betavoltaic batteries.

关键词： Beta voltaic effect Zinc oxide Time-related properties PN junction Schottky diode Monte Carlo simulation

The IAP family: endogenous caspase inhibitors with multiple biological activities

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Cell Research 2000年第3期10卷 169-177页

作者： YANG yi li, xiao MING li(Laboratory of Immune Cell Biology, Division of Basic Sciences, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA) Division of Basic Sciences Laboratory of Immune Cell Biology National Cancer Institute National Institutes of Health Bethesda USA

IAPs (inhibitors of apoptosis) are a family of proteins containing one or more characteristic BIR domains. These proteins have multiple biological activities that include binding and inhibiting caspases, regulating cell cycle progression, and modulating receptor-mediated signal transduction. Our recent studies found the IAP family members XIAP and c-IAP1 are ubiquitinated and degraded in proteasomes in response to apoptotic stimuli in T cells, and their degradation appears to be important for T cells to commit to death. In addition to three BIR domains, each of these IAPs also contains a RING finger *** found this region confers ubiquitin protease ligase (E3) activity to IAPs, and is responsible for the auto-ubiquitination and degradation of IAPs after an apoptotic stimulus. Given the factthat IAPs can bind a variety of proteins, such as caspases and TRAFs, it will be of interest to characterize potential substrates of the E3 activity of IAPs and the effects of ubiquitination byiAPs on signal transduction, cell cycle, and apoptosis.

关键词： Apoptosis ubiquitination IAP caspase TNF

Genome-Wide Analysis Regulatory Network of Photomorphogenesis Revealed the Complex Brassinosteroid Effects in

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Molecular Plant 2009年第4期2卷 755-772页

作者： li Song xiao-yi Zhou li li liang-Jiao Xue Xi Yang Hong-Wei Xue National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences 300 Fenglin Road 200032 Shanghai China

light and brassinosteroids （BRs） have been proved to be crucial in regulating plant growth and development; however, the mechanism of how they synergistically function is still largely unknown. To explore the underlying mechanisms in photomorphogenesis, genome-wide analyses were carried out through examining the gene expressions of the dark-grown WT or BR biosynthesis-defective mutant det2 seedlings in the presence of light stimuli or exogenous Brassinolide （BL）. Results showed that BR deficiency stimulates, while BL treatment suppresses, the expressions of lightresponsive genes and photomorphogenesis, confirming the negative effects of BR in photomorphogenesis. This is consistent with the specific effects of BR on the expression of genes involved in cell wall modification, cellular metabolism and energy utilization during dark-light transition. Further analysis revealed that hormone biosynthesis and signaling-related genes, especially those of auxin, were altered under BL treatment or light stimuli, indicating that BR may modulate photomorphogenesis through synergetic regulation with other hormones. Additionally, suppressed ubiquitin-cycle pathway during light-dark transition hinted the presence of a complicated network among light, hormone, and protein degradation. The study provides the direct evidence of BR effects in photomorphogenesis and identified the genes involved in BR and light signaling pathway, which will help to elucidate the molecular mechanism of plant photomorphogenesis.

关键词： brassinosteroid light photomorphogenesis hormone interplay ubiquitin.

Cloning and Expression Analysis of a Brassinosteroid Biosynthetic Enzyme Gene,GhDWF1,from Cotton (Gossypium hirsuturm L.)

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Agricultural Sciences in China 2007年第11期6卷 1297-1305页

作者： LUO Ming xiao Zhong-yi xiao Yue-hua li Xian-bi HOU Lei ZHOU Jian-ping HU Ming-yu PEI Yan Key Laboratory of Biotechnology and Crop Quality Improvement Ministry of Agriculture/Biotechnology Research Center SouthwestUniversity Chongqing 400716 P.R.China

Brassinosteroids （BRs） are an important class of plant steroidal hormones that are essential in a wide variety of physiological processes. To determine the effects of BRs on the development of cotton fibers, through screening cotton fiber EST database and contigging the candidate ESTs, a key gene （GhDWF1） involved in the upstream biosynthetic pathway of BRs was cloned from developing fibers of upland cotton （Gossypium hirsutum L.） cv. Xuzhou 142. The full length of the cloned cDNA is 1 849 bp, including a 37 bp 5＇-untranslated region, an ORF of 1 692 bp, and a 120 bp 3＇-untranslated region. The cDNA encodes a polypeptide of 563 amino acid residues with a predicted molecular mass of 65 kD. The deduced amino acid sequence has high homology with the BR biosynthetic enzyme, DWARF1/DIMINUTO, from rice, maize, pea, tomato, and Arabidopsis. Furthermore, the typical conserved structures, such as the transmembrane domain, the FAD- dependent oxidase domain, and the FAD-binding site, are present in the GhDWF1 protein. The Southern blot indicated that the GhDWF1 gene is a single copy in upland cotton genome. RT-PCR analysis revealed that the highest level of GhDWF1 expression was detected in 0 DPA （day post anthesis） ovule （with fibers） while the lowest level was observed in cotyledon. The GhDWF1 gene presents high expression levels in root, young stem, and fiber, especially, at the fiber developmental stage of secondary cell wall accumulation. Moreover, the expression level was higher in ovules （with fibers） of wildtype （Xuzhou 142） than in ovules of fuzzless-lintless mutant at the same developmental stages （0 and 4 DPA）. The results suggest that the GhDWF1 gene plays a crucial role in fiber development.

关键词： cotton DWARF1 gene fiber brassinosteroids phytosterol

Intracranial Abnormalities of Infantile Hemangiomas in the Head and Neck Regions: A Retrospective MRI Study

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International Journal of Dermatology and Venereology 2020年第4期3卷 219-224页

作者： Gao ying yi xiao-li Department of Dermatology Capital Institute of PediatricsBeijing 100020China Department of Radiology Capital Institute of PediatricsBeijing 100020China

Objective:Few reports have described intracranial hemangiomas and structural brain and/or arterial anomalies in patients with infantile *** study was performed to examine the magnetic resonance imaging findings of intracranial abnormalities in a group of infants with hemangiomas in the head and neck ***:We reviewed our hemangioma treatment center database from January 2010 to July 2018 to assess the prevalence of intracranial abnormalities in infants with hemangiomas in the head and neck *** and electronic magnetic resonance imaging data were also retrieved from the patients’medical ***:Of 436 patients with infantile hemangiomas in the head and neck regions,23(5%)had intracranial abnormalities,including 20(23%)with segmental hemangiomas and 3(1%)with focal *** total,14 patients had intracranial hemangiomas located within the ventricle and cisterns or ipsilateral lesions involving the extradural *** patients had intracranial structural abnormalities,such as cerebellar dysplasia,Dandy-Walker malformation,and *** patients had intracranial arterial anomalies,and three patients had arteriovenous ***:These findings support the hypothesis that intracranial hemangiomas are commonly associated with segmental infantile hemangiomas in the head and neck regions.

关键词： infantile hemangiomas magnetic resonance imaging intracranial abnormalities

Corrosion Behavior of Weathering Test Steel for Bridge Under the Neutral Wet/Dry Alternate Condition

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Journal of Iron and Steel Research International 2011年第S1期18卷 951-955页

作者： XU xiao-lian,ZHONG Bin,AI Fang-fang,CHEN yi-qing,xiao Yu,li lin (Technology Center of Angang Steel Co.,Ltd.,Anshan 114009,liaoning,China) Angang Steel Co Ltd Ctr Technol Anshan 114009 Liaoning Peoples R China

The corrosion behaviors of the high-performance weathering test steel for bridge and the reference (09CuPCrNi-A) were symmetrically studied under 3.5% NaCl neutral wet/dry alternate condition,revealing their dynamics line tendency of primary corrosion and the rusting flow in the simulative marine atmosphere *** observing the corrosion evolution of surface microstructures and composition by the scanning electronic microscope (SEM) and the energy dispersive spectrometer (EDS) at the different stages,the corrosion mechanism was further discussed in details.

关键词： weathering steel bridge neutral environment wet/dry alternate condition corrosion process

Fractionated resection on low grade gliomas involving Broca＇s area and insights to brain plasticity

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Chinese Medical Journal 2008年第20期121卷 2026-2030页

作者： WU Chen-xing PU Song liN yi WANG Yong-zhi JIANG Tao XIE Jian WEI Miao yi xiao-li WANG xiao-yi Department of Neurosurgery Beijing Tiantan Hospital Affiliated to Capital Medical University Beijing 100050 China Department of Neuroimage Beijing Tiantan Hospital Affiliated to Capital Medical University Beijing 100050 China Department of Neurosurgery First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang 150001 China Department of Neurosurgery First Affiliated Hospital of Chinese Medical University Shenyang Liaoning 110001 China State Key Laboratory of Cognitive Neuroscience and Learning Beijing 100875 China

Background Resent advances on functional mapping have enabled us to conduct surgery on gliomas within the eloquent area. The objective of the article is to discuss the feasibility of a planned fractionated strategy of resection on low-grade gliomas （LGGs） involving Broca＇s area. We report the first surgical series of planned fractionated resections on LGGs within Broca＇s area, focusing on language functional reshaping. Methods Four patients were treated with fractionated operations for LGGs involving Broca＇s area. All cases underwent conventional magnetic resonance （MR） scanning, language functional MR and diffusion tensor imaging （DTI） before operation. The resections were then performed on patients under awake anesthesia using intraoperative electrical stimulation （IES） for functional mapping. Pre- and post-operative neuro-psychological examinations were evaluated.Results Total resections were achieved in all cases as confirmed by the postoperative control MR. After transient language worsening, all patients recovered to normal 3-6 months later. Language functional MR scannings have shown language functional cortical and subcortical pathway reorganization （in the perilesion or contra-lateral hemisphere） after the operation. All patients returned to a normal socioprofessional life. Conclusions By utilizing the dynamic interaction between brain plasticity and fractionated resections, we can totally remove the tumor involving Broca＇s structure without inducing permanent postoperative deficits and even improve the quality of life.

关键词： low-grade gliomas Broca's area fractionated resection brain plasticity

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香格里拉四川片区旅游产品开发的“三部曲”

黑龙江民族丛刊 2007年第5期 80-85页

作者：易小力四川大学旅游学院成都610064

香格里拉四川片区不仅具有世界级的旅游资源,而且还是罕见的多民族聚居区和文化汇集区.人们在普遍关注该区域的生态旅游资源时,却忽略了该区域独具魅力、丰富多彩的多民族文化资源。那么,如何挖掘和展示该区域丰富的多民族文化资源呢?... 详细信息

香格里拉四川片区不仅具有世界级的旅游资源,而且还是罕见的多民族聚居区和文化汇集区.人们在普遍关注该区域的生态旅游资源时,却忽略了该区域独具魅力、丰富多彩的多民族文化资源。那么,如何挖掘和展示该区域丰富的多民族文化资源呢?笔者认为:通过开发该区域的旅游产品,以多民族文化为依托,分步骤分阶段有条不紊地来展现,不失为一计良策。

关键词：香格里拉四川片区旅游产品开发多民族文化