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Sample records for bunshi kyokugen sosa

  1. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). The R and D aims at establishment of observation/manipulation technology of atoms and molecules as common basic technology in various industrial fields such as new material, electronics, bio-technology and chemistry. The R and D thus aims at establishment of observation/manipulation of solid surfaces and DNA organic molecules, formation of fine structures of atomic surface arrangement, and calculation/ simulation for predicting a reaction theorem of atom and molecule surfaces. In fiscal 1997, research was made on improvement and development of computer simulation environment, and description of an excited state of electrons by Green function. Establishment of a construction method and computation code is under investigation for pseudo- potential dependent on excitation energy. Survey was made on research trends of the atom technology by visiting overseas academic societies and institutions. International Symposium on Atom Technology was also held in Tokyo in Nov. 1997

  2. FY 1998 annual summary report on manipulation of atomic and molecular extremes. Development of technologies for high-efficiency analysis/manipulation of DNA and the like; 1998 nendo genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho. DNA nado kokoritsu kaiseki sosa gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to establish the techniques for observation/manipulation of atoms and molecules, as the common basic techniques for various industrial areas, e.g., new materials, electronics, biotechnology and chemical. Development of atomic field and scanning tunneling microscopes working under extreme conditions has been pursued, in order to manipulate complex systems, such as living body. For identification of molecular species, laser-excited fluorescence is combined with scanning mechanical probing to further refine the single molecule detection/identification techniques, and the objectives are set to develop a new method for evaluating molecules in a living body using a scanning probe microscope, and also to develop a novel scanning probe microscope for molecules in a living body. The other efforts were directed to R and D of the techniques for observing structures of organic molecules and the like through the measurements of adsorption process of organic molecules and clusters on semiconductor substrates and their surface reactions, and precision measurements of vibrational conditions of adsorbed molecular species reacting in the solid-liquid interfaces by high-sensitivity Raman spectroscopy to elucidate the catalysis mechanisms at the molecular level. (NEDO)

  3. Achievement report for fiscal 1998. Research and development of ultimate atom/molecule manipulating technologies (Development of technology for formation of advanced function materials for use under power generation environment); 1998 nendo genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho. Hatsuden kankyoyo kokino sozai keisei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The aim is to establish atom/molecule observing and manipulating technologies commonly applicable as basic technologies to industrial fields of new materials, electronics, biotechnology, chemistry, etc. The technologies to be established involve atom level observation and manipulation by mechanically probing into organic molecules such as those of solid surface DNA, microstructure formation with atoms arbitrarily arranged by use of a microfine electron beam and surface chemical properties, simulation by the first principle calculation for the theoretical prediction atom/mole surface application in a process, and new materials to replace semiconductors. The subjects of research and development selected for this fiscal year are the study of silicon nanostructure formation and physical properties, study of nanostructure formation technology based on cluster manipulation, study of nanostructure formation processes using chemical reaction control and local structure analysis, study of new properties of correlation-intensive electron based new materials, study of spin measuring technology, and the study of theoretical analysis of atom/molecule dynamic processes. (NEDO)

  4. Fiscal 1997 R an D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules (high-efficiency and analysis and manipulation technology for DNA); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (DNA nado kokoritsu kaiseki sosa gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). Through the observation of super spiral DNA fixed on a spermin or spermidine treated mica substrate by AFM (atomic force microscope), fixation of DNA without any deformation in solution was clarified, and visualization of the spiral structure of DNA were successfully achieved. Manipulation of Xe atoms adsorbed on an Si(111) surface was certainly possible by using STM (scanning tunneling microscope)/atom probe equipment. A nucleation mechanism in crystal growth was studied for various organic source-molecules/GaAs(001) surface systems, and formation of high-density nuclei on the GaAs surface was achieved by accelerating the translational energy of Ga material molecules up to 6eV or more. Ziegler- Natta catalysis important for industrial polymerization of olefin molecules was precisely analyzed by first-principle dynamic simulation. A large-scale simulation of zeolite catalyst is also in promotion for methanol to gasoline conversion. 51 refs., 87 figs., 7 tabs.

  5. Fiscal 1997 R and D project on industrial science and technology under a consignment from NEDO. R and D of the ultimate manipulation technology of atoms and molecules (R and D of the formation of advanced materials for power generation environment); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Genshi bunshi kyokugen sosa gijutsu no kenkyu kaihatsu seika hokokusho (hatsuden kankyoyo kokino sozai keisei gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper describes R and D of the ultimate manipulation technology of atoms and molecules (atom technology). Ten nanoscale Ge islands were successfully formed in proper positions on an Si substrate surface by using mask technology of nanoscale atomic layers. Growth of less-defect ZnSe films on a GaAs(110) surface was possible under various conditions. The magnetic transfer mechanism of Mn oxide with huge reluctance was clarified. Through study on selective-area deposition of Si on plasma-oxidized ultrathin SiO2 mask layers patterned by direct electron-beam exposure and an idea of SiO2/SiNx bilayer mask, direct use of the ultrathin mask layer as insulating layer in device structure was achieved. The superior property as electron beam resist of methano- fullerene composed of fullerene C60 with side chains including oxygen was clarified. The initial oxidation process of an Si(100) surface was analyzed, and the observation result by SREM was theoretically explained. Development of a high-resolution spin polarization electron microscope was also mentioned. 48 refs., 145 figs., 20 tabs.

  6. Sensor Open System Architecture (SOSA)

    Science.gov (United States)

    Collier, Charles P.; Lipkin, Ilya; Davidson, Steven A.; Dirner, Jason

    2016-05-01

    The Sensor Open System Architecture (SOSA) is a C4ISR-focused technical and economic collaborative effort between the Air Force, Navy, Army, the Department of Defense (DoD), Industry, and other Governmental agencies to develop (and incorporate) technical Open Systems Architecture standards in order to maximize C4ISR sub-system, system, and platform affordability, re-configurability, overall performance, and hardware/software/firmware re-use. The SOSA effort will effectively create an operational and technical framework for the integration of disparate payloads into C4ISR systems; with a focus on the development of a functional decomposition for common multi-purpose backbone architecture for radar, EO/IR, SIGINT, EW, and communications modalities. SOSA addresses hardware, software, and mechanical/electrical interfaces. The functional decomposition will produce a set of re-useable components, interfaces, and sub-systems that engender re-usable capabilities. This, in effect, creates a realistic and affordable ecosystem enabling mission effectiveness through systematic re-use of all available re-composed hardware, software, and electrical/mechanical base components and interfaces.

  7. Sentiment Contagion Based on the Modified SOSa-SPSa Model

    Science.gov (United States)

    Song, Zhijie; Jia, Jie; Wang, Jian

    2016-01-01

    Sentiment contagion is similar to an infectious disease that spreads in a crowd. In this study, we extend the proposed SOSa-SPSa model (susceptible-optimistic-susceptible and susceptible-pessimistic-susceptible) by considering the interaction between optimists and pessimists. Simulation results show that our model is reasonable and can better explain the entire contagion process by considering three groups of people. The recovery speed of pessimists has an obvious regulative effect on the number of pessimists and the possibility of optimists coming in contact with pessimists to be infected as pessimism plays a greater role than that of reverting to susceptibility. The number of pessimists is positively related to the possibility that optimists come in contact with pessimists to become pessimistic but is negatively related to the possibility of the other way around. When the speed of spontaneous generation is slow, the number of pessimists sharply increases. However, the increase is not so apparent when the speed of spontaneous generation reaches a certain number.

  8. 索萨的德性知识论%Ernest Sosa's Epistemology of Virtue

    Institute of Scientific and Technical Information of China (English)

    陈英涛

    2011-01-01

    基于对内在论与外在论、基础论与融贯论等当代知识论主流理论的批判,索萨(Erenst Sosa)建构了新的知识理论:德性知识论.德性知识论的提出对当代知识论研究具有导向性的意义,也可以说,引领了当代知识论的合理重建.但该理论仍然受到主流学者的围剿,并没能有效完成知识论的重建任务.

  9. SOSA – a new model to simulate the concentrations of organic vapours and sulphuric acid inside the ABL – Part 1: Model description and initial evaluation

    DEFF Research Database (Denmark)

    Boy, M.; Sogachev, Andrey; Lauros, J.;

    2011-01-01

    Chemistry in the atmospheric boundary layer (ABL) is controlled by complex processes of surface fluxes, flow, turbulent transport, and chemical reactions. We present a new model SOSA (model to simulate the concentration of organic vapours and sulphuric acid) and attempt to reconstruct the emissions...

  10. SOSA – a new model to simulate the concentrations of organic vapours and sulphuric acid inside the ABL – Part 1: Model description and initial evaluation

    DEFF Research Database (Denmark)

    Boy, M.; Sogachev, Andrey; Lauros, J.;

    2010-01-01

    Chemistry in the atmospheric boundary layer (ABL) is controlled by complex processes of surface fluxes, flow, turbulent transport, and chemical reactions. We present a new model SOSA (model to simulate the concentration of organic vapours and sulphuric acid) and attempt to reconstruct the emissions...

  11. Research on the Evaluation of Land Intensive Use in Logistics Park:Based on SOSA and TOPSIS Method%物流园区土地集约利用评价研究*--基于SOSA-TOPSIS法

    Institute of Scientific and Technical Information of China (English)

    李玉民; 陈博文; 马晓伟

    2015-01-01

    我国物流园区增长迅速,但土地集约利用效率较低。从土地利用强度、土地投入产出、土地社会效益、土地生态效益4个方面建立评价指标体系,利用主客观赋权法、改进的TOPSIS(逼近理想点法)构建评价模型,并通过障碍度模型分析影响物流园区土地集约利用的主要因素,据此提出改进建议。%China’s logistics park is growing rapidly,but land use efficiency is obviously low. From 4 aspects of land use intensity,land input and output,land social benefits,land ecological benefits,the paper builds the evaluation index system of intensive land utilization of logistics park,constructs the evaluation model by SOSA(subjective and objective synthetic approach)and improved TOPSIS(technique for order preference by similarity to ideal solution),analyzes the main factors influencing the intensive use of land in logistics park with obstacle degree model,then puts forward the improvement suggestions.

  12. The Evaluation Method for Facilities Planning of Logistics Centre Based on SOSA and TOPSIS%基于主客观赋权和TOPSIS的物流中心规划方案评价

    Institute of Scientific and Technical Information of China (English)

    李玉民

    2011-01-01

    The scheme evaluation for facilities planning of logistics center is a multiobjective decision making problem. Based on SOSA (Subjective and Objective Synthetic Approach) and TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) , a comprehensive evaluation method is brought forward to evaluate the scheme of logistics center's facilities planning. After establishing the evaluation indexes system, ascertaining the indexes' weight by SOSA, calculating the relative approach degree as to the ideal point and negative ideal point, and then the values of these relative approach degree are obtained. Based on the values, the evaluation result and the optimum scheme could be obtained. Case analysis shows that the proposed method is effective and reasonable.%物流中心设施规划的方案评价是一个多目标决策问题.提出了一种基于主客观赋权( SOSA)和理想点法(TOPSIS)的综合评价方法,能够较好解决物流中心设施规划方案的评价优选问题.根据物流中心设施规划设计的特点和要求,建立综合评价指标体系;应用主客观赋权的方法,确定各指标在综合评价指标体系中的权重;求出各方案相应指标属性值对理想解的相对接近度;通过比较相对接近度的大小,对各个规划方案进行排序优选.应用实例表明该方法是合理有效的.

  13. Procesos de remoción en masa y erosion fluvial en la quebrada del río Los Sosa, provincia de Tucumán

    Directory of Open Access Journals (Sweden)

    D. S. Fernández

    2003-06-01

    Full Text Available Durante las últimas precipitaciones que tuvieron lugar en la quebrada del río Los Sosa en los meses de verano de 2001, se registraron numerosos movimientos de remoción en masa y eventos de erosión fluvial que afectaron severamente a la ruta Provincial 307. El costo de las reparaciones que se tuvieron que realizar en la zona ascendió a US$ 821.598, los que fueron afrontados mediante créditos externos. Los dos parámetros que tienen incidencia directa en esos procesos son: la progresiva acumulación de agua de prolongadas lluvias y la intensidad de las tormentas, a los que se suma la acción antrópica efectuada de manera intencional y/o accidental. En cuanto a los factores condicionantes, la litología y las pendientes cumplen un importante papel en el control del tipo de proceso desarrollado. Los flujos fueron observados en su mayoría en la zona donde afloran las metamorfitas de bajo grado, mientras que los deslizamientos de detritos en materiales previamente alterados por acción meteórica predominaron en la zona donde aflora la tonalita El Indio. En total se inventariaron 36 casos, correspondiendo en su mayoría a los deslizamientos superficiales, mientras que los de mayor magnitud fueron los flujos de detritos. La zona de mayor peligrosidad, que afecta a la ruta provincial 307, se encuentra ubicada entre los kilómetros 23 y 38, donde tienen lugar la mayoría de los movimientos de ladera.

  14. La competencia terminológica: causas lingüísticas en el auge del término sosa y el declive de barrilla en los siglos XVIII y XIX

    Directory of Open Access Journals (Sweden)

    Sala Caja, Lidia

    2003-12-01

    Full Text Available From the Middle Ages onwards plant ashes were commonly used throughrout Europe in the elaboration of soap and glass. These ashes were known by different names depending on the vegetables employed and the quality of the product. In Spain sosa (soda and barrilla (barilla were the most widespread.
    Due to the reconceptualization of their primary references, these two words underwent considerable semantic changes during the XVIIIth and the XIXth centuries. The aim of this paper is to survey these changes focusing on their intralinguistic factors.

    Desde la Edad Media las cenizas de las plantas solían emplearse en toda Europa en la elaboración del jabón y del vidrio. Estas cenizas eran conocidas con diferentes términos derivados de los vegetales empleados y la cualidad del producto. En España la sosa y la barrilla eran las más extendidas. Debido a la reconceptualización de sus referencias iniciales, ambas denominaciones sufrieron considerables cambios semánticos durante los siglos XVIII y XIX. El propósito de este artículo es observar estos cambios subrayando los factores intralingüísticos.

  15. Olhar sobre as metáforas cantadas por Mercedes Sosa e outros cantores durante as ditaduras militares na Argentina e outros países da América Latina

    Directory of Open Access Journals (Sweden)

    Elissandro dos Santos Santana

    2013-05-01

    Full Text Available Esse trabalho é fruto do projeto Elaboração de Material Didático para o ensino de Língua Espanhola e o recorte é a música no ensino de espanhol como língua estrangeira (ELE: uma abordagem interdisciplinar e multicultural. O corpus de investigação, letras e biografias de cantores e cantoras censurados em ditaduras da América Latina, serviu como pano de fundo para a análise de algumas das metáforas presentes nas canções interpretadas por Mercedes Sosa e outros artistas de países latino-americanos como Brasil, Chile e Cuba.

  16. Research study on harmonized molecular materials (HMM); Bunshi kyocho zairyo ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    As functional material to satisfy various needs for environmental harmonization and efficient conversion for information-oriented and aging societies, HMM were surveyed. Living bodies effectively carry out transmission/processing of information, and transport/conversion of substances, and these functions are based on harmonization between organic molecules, and between those and metal or inorganic ones. HMM is a key substance to artificially realize these bio-related functions. Its R & D aims at (1) Making a breakthrough in production process based on innovation of material separation/conversion technology, (2) Contribution to an information-oriented society by high-efficiency devices, and (3) Growth of a functional bio-material industry. HMM is classified into three categories: (1) Assembly materials such as organic ultra-thin films (LB film, self-organizing film), and organic/inorganic hybrid materials for optoelectronics, sensors and devices, (2) Mesophase materials such as functional separation membrane and photo-conductive material, and (3) Microporous materials such as synthetic catalyst using guest/host materials. 571 refs., 88 figs., 21 tabs.

  17. Research on harmonized molecular materials; Bunshi kyocho zairyo ni kansuru chosa kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Harmonized molecular materials (HMM) were researched to create functional materials adaptable to needs such as environmental harmony and high-efficient conversion in post-industrial society and aging society. Superior mechanisms function efficiently in organisms for perception, transmission and processing of information, and transport and conversion of substances. These functions are caused by harmonization between organic molecules, or organic molecule and metal or inorganic substance. HMM is a key substance to realize these functions similar to those of organisms artificially. It is the purpose of this research to develop HMMs, reform production process by innovating separation and conversion technologies, and finally realize molecular chemical plants. This research also develops high-efficient devices to contribute to the information society, and progresses the industry of bio-functional materials such as high-sensitive bio-sensor. The functions, applications and creation technologies of three kinds of HMM such as assembly, mesophase and microporous materials were researched in fiscal 1995. 956 refs., 128 figs., 13 tabs.

  18. FY1995 ultra-high performance semiconductor lasers for advanced optical information network; 1995 nendo kodo hikari joho tsushinmo e muketa kyokugen seino handotai laser

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The purpose of this research was to study and develop ultra-high performance semiconductor light source devices that should facilitate construction of advanced optical information networks. The semiconductor devices mentioned above are enhanced and integrated versions of distributed feedback (DFB) lasers based on 'gain coupling', which the group of the research coordinator has been investigating as a pioneer in the world. This research aimed at development of ultra-high performance semiconductor lasers that surpass the first generation conventional DFB lasers in any respect, by strengthening important device characteristics for system applications of the gain-coupled DFB lasers. The achievements of this research are listed below : 1. In-situ characterization of As-P exchange in MOVPE 2. Development of 1.55 {mu}m gain-coupled DFB lasers of absorptive grating type 3. Establishment of measurement technique for gain-coupling coefficients 4. Enlargement of small signal modulation response by the absorptive grating 5. Prediction of lower analog modulation distortion 6. Characterization of reflection-induced noise 7. Proposal and Demonstration of wavelength trimming 8. Proposal and Fabrication of GC DFB laser triode (NEDO)

  19. Huge spherical chiral molecules having Archimedean solid structure; Arukimedesu no juntamentai kozo wo motsu kyodai kiraru kyujo bunshi

    Energy Technology Data Exchange (ETDEWEB)

    Tadokoro, M. [Osaka City University, Osaka (Japan)

    1999-01-01

    Huge spherical chiral molecules having shape of a converted cube were synthesized by simply recrystallizing resorcinol tetramer (1) in nitrobenzene. These are formed by connecting six (1)s with eight water molecules via hydrogen bonding of as many as sixty molecules. The molecule has a total length of 24.3 times 10 {sup -10} m, internal holes with a maximum diameter of 17.7 times 10 {sup -10} m, and internal cavity volume of 1375 times (10 {sup -10} m) {sup 3}. The cavity volume is as great as 4.5 times of that for a molecular capsule having holes known as largest to date. In spite of the molecule being formed by the weak bonding force called hydrogen bonding, it can exist stably even in heavy water. Its utilization is suggested for forming micro vesicle for chiral catalysts and drug delivery. What is more interesting is that the topology of this molecule reminds us of association position of icosahedron type proteins represented by spherical virus such as hepatitis B virus. Since any of them is produced from weak bonding force, its similarity in the strucuture is emphasized. (NEDO)

  20. Study on molecular controlled mining system of methane hydrate; Methane hydrate no bunshi seigyo mining ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Kuriyagawa, M.; Saito, T.; Kobayashi, H.; Karasawa, H.; Kiyono , F.; Nagaoki, R.; Yamamoto, Y.; Komai, T.; Haneda, H.; Takahashi, Y. [National Institute for Resources and Environment, Tsukuba (Japan); Nada, H. [Science and Technology Agency, Tokyo (Japan)

    1997-02-01

    Basic studies are conducted for the collection of methane from the methane hydrate that exists at levels deeper than 500m in the sea. The relationship between the hydrate generation mechanism and water cluster structure is examined by use of mass spectronomy. It is found that, among the stable liquid phase clusters, the (H2O)21H{sup +} cluster is the most stable. Stable hydrate clusters are in presence in quantities, and participate in the formation of hydrate crystal nuclei. For the elucidation of the nucleus formation mechanism, a kinetic simulation is conducted of molecules in the cohesion system consisting of water and methane molecules. Water molecules that array near methane molecules at the normal pressure is disarrayed under a higher pressure for rearray into a hydrate structure. Hydrate formation and breakdown in the three-phase equilibrium state of H2O, CH4, and CO2 at a low temperature and high pressure are tested, which discloses that supercooling is required for formation, that it is possible to extract CH4 first for replacement by guest molecule CO2 since CO2 is stabler than CH4 at a lower pressure or higher temperature, and that formation is easier to take place when the grain diameter is larger at the formation point since larger grain diameters result in a higher formation temperature. 3 figs.

  1. Coal structure construction system with construction knowledge and partial energy evaluation; Kochiku chishiki to bubunteki energy hyoka ni yoru sekitan bunshi kozo kochiku system

    Energy Technology Data Exchange (ETDEWEB)

    Okawa, T.; Sasai, T.; Komoda, N. [Osaka University, Osaka (Japan). Faculty of Engineering

    1996-10-28

    The computer aided coal structure construction system is proposed, and a computational construction example is presented. The coal structure construction engine of this system fabricates molecular structure by connecting fragments sequentially inputted through a user interface. The best structure candidate is determined using construction knowledge and partial energy evaluation every addition of one fragment, and this process is subsequently repeated. The structure evaluation engine analyzes the 3-D conformation candidate by molecular dynamics, and evaluates the conformation by determining the energy value of an optimum structure. As an example, this system was applied to construction of coal molecular structure based on the actual data of partial structure composed of 26 structures from 2l kinds of aromatic cluster structures, 27 bonds from 2 kinds of bridged bonds, and 16 groups from 2 kinds of terminal substitutional groups. As a result, this system could construct a superior structure according to expert knowledge from the viewpoint of energy. 6 refs., 5 figs., 2 tabs.

  2. Studies on molecular cloning of a binding protein for the monitor peptide and its physilogical significance; Monitapepuchido ketsugo tanpakushitsu no bunshi kuroningu to sono seiriteki igi no kaimei

    Energy Technology Data Exchange (ETDEWEB)

    Tsuzuki, Satoshi [Kyoto University, Kyoto (Japan). Graduate School of Agriculture

    1999-12-16

    The monitor peptide, its molecular weight of about 6500, was isolated from art bile-pancreatic juice as a stimulant for the secretion of a gastrointestinal hormone, cholecystokinin. We have reported a specific binding of the monitor peptide to rat small intestinal mucosal cells and that monitor peptide binding protein (receptor) seemed to have an affinity site for its regand resembling that of trypsin. In the present study, we isolated a clone from a rat small intestine cDNA library which encodes a novel trypsin-like protein with a transmembrane region. The mRNA corresponding to the cDNA of this protein was expressed in the vill in duodenum. The protein was expressed in cultured cells to examine the specific binding to {sup 125}I labeled monitor peptide. (author)

  3. Study of the influence of microgravity on the biological cells and molecular level; Seitai saibo bunshi level ni okeru bisho juryoku no eikyo ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The shape of osteoblast, gene appearance, gene of rice blast, cellular fusion of plants, gravity acceptance mechanism of unicellular organisms, and physiological and immunity functions of mice were investigated under the microgravity condition. The influence of gravity on the vital reaction and the influence of microgravity on the crystallization of vital substances were also investigated. For the observation of osteoblast, the fluorescence dye reacted with Ca was well taken in the cells. The microgravity affected the stability of rice blast, but hardly affected the protoplast culture of mushroom. The reaction of ciliate against the gravity related to the specific gravity difference between cells and outer liquid. The level of adrenaline in blood of mice increased during the drop. The moving speed of trigger waves of chemical parallel slit formed at the BZ reaction under the microgravity became 60% to 80% of that on the ground. In the case of crystallization at the deposition agent concentration of 1% to 4%, the turbidity showing the degree of crystallization changed complicatedly. Nine processes of crystal growth were recognized. 21 refs., 55 figs., 1 tab.

  4. Control of population of excited nitrogen molecules by mixing hydrogen in low pressure discharge; Chisso jun`antei reiki bunshi mitsudo no quenching ni yoru seigyo no kento

    Energy Technology Data Exchange (ETDEWEB)

    Uematsu, K.; Yumoto, M.; Sakai, T. [Musashi Institute of Technology, Tokyo (Japan)

    1998-06-01

    The authors have studied on surface treatment of PTFE by a low pressure discharge. It is deduced that excited nitrogen molecules contribute to introduce polar components on the surface. To confirm the speculation, we tried to change population of metastable nitrogen N2 (A{sup 3}{Sigma}u{sup +}) by quenching precursor N2 (B{sup 3}{pi}g), with hydrogen molecule. The decrease of relaxation time which indicates a change of excited molecule and measured by emission spectroscopy using a time after glow method was obtained. As a result, the relaxation times of N2 (B{sup 3}{pi}g) and N2 (A{sup 3}{Sigma}u{sup +}) decreased to 55% and 20% respectively, when mixing ratio of hydrogen was 3%. It was also deduced that hydrogen atom may take a part in a quenching process of N2 (A{sup 3}{Sigma}u{sup +}). 14 refs., 11 figs., 1 tab.

  5. Studies on the molecular mechanism of neural signaling, learning and memory; Chusu shinkei joho dentatsu to kioku{center_dot}gakushu no bunshi kiko ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Mishina, Masayoshi [The University of Tokyo, Tokyo (Japan). Dept. of Molecular Neurobiology and Pharmacology

    1999-12-16

    To examine the functional roles in vivo of the diverse glutamate receptor (GluR) channel subunits, we generated mutant mice defective in respective subunits. Mutant mice defective in the GluR{epsilon} 1 subunit of the NMDA-type GluR channel exhibited increased thresholds for both hippocampal synaptic plasticity and contextual maze learning, suggesting that synaptic plasticity is a cellular bases of learning and memory. The NMDA receptor channel GluR{epsilon} 2 subunit mutant mice showed impairments in the formation of the whisker-related neuronal barrelette structure in the brainstem trigeminal nucleus and synaptic plasticity in the hippocampus. Analyses of the mutant mice revealed that the GluR{delta} 2 subunit, selectively localized in cerebellar Purkinje cells, was essential in motor learning and cerebellar LTD and in Purkinje cell synapse formation. Our results suggest that some of the GluR channels play important roles in neural network formation during brain development and in higher brain function. (author)

  6. Analysis of signal transduction in brain cells using molecular signal microscope; Bunshi jiho kenbikyo wo mochiita nousaibou no joho henkan kiko no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Kawato, Suguru [The University of Tokyo, Tokyo (Japan). Dept. of Biophysics and Life Sciences

    1999-12-16

    We analyzed the signal transduction in brain neurons by real-time imaging of Ca/NO signals using the Molecular Signal Microscope. We also analyzed synthesis and action of neurosteroids in the hippocampus. We discovered steroid synthesis machinery containing cytochrome P 450 scc in hippocampal neurons. We found that pregnenolone sulfate acutely potentiated NMDA receptor-mediated Ca conductivity in hippocampal neurons. We also found that stress steroid corticosterone acutely prolonged NMDA receptor-mediated Ca{sup 2+} influx, resulting in Ca-induced neuro-toxicity. (author)

  7. Operating condition and membrane thickness of microcapsules generated by complex coacervation method; Coacervation ho ni yoru seisei microcapsule no sosa joken to capsule makuatsu

    Energy Technology Data Exchange (ETDEWEB)

    Kage, H.; Ogura, H.; Matsuno, Y. [Kyushu Institute of Technology, Kitakyushu (Japan); Kunimasa, M. [Takeda Chemical Industries, Ltd., Osaka (Japan); Kawahara, H. [Dainippon Ink Chemicals, Inc., Tokyo (Japan)

    1996-03-10

    Microencapsulation of glass beads with a narrow size distribution was carried out by complex coacervation of gelatin and acacia. The coacervation process was observed in detail and the effects of agitation strength, cooling rate, addition time of core material, addition plans of acetic acid and distilled water, and heating rate in the hardening process on membrane thickness of the microcapsules were investigated systematically. The membrane thickness of the microcapsules increased under the operating conditions where low cooling rate and relatively strong agitation were utilized, and pH was changed moderately by discrete addition of acetic acid or distilled water over a certain time interval. It became clear that strict control of operating conditions at 19{degree}C in the cooling process where the viscosity of the coacervate suddenly increases is remarkably important for the control of membrane thickness. 3 refs., 9 figs., 3 tabs.

  8. Effects of cellular telephone manipulation on driver`s performance; Jidosha untenchu no keitai denwa shiyo sosa ni kanrensuru mondai no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Tokunaga, R.; Ozawa, M.; Hagiwara, T. [Hokkaido University, Sapporo (Japan); Takagi, H.; Shimojo, A. [Civil Engineering Research Institute of Hokkaido, Hokkaido (Japan)

    1997-10-01

    The present evaluates effects of cellular telephone manipulation on driver`s performance. The major independent variables were the reaction time and the mental workload. Hart et al. proposed the concept of the subjective mental workload. Experiments were conduced using a driving simulator without motion. Findings showed that the hands free system may provide less effect than the cellular telephone on the passenger seat on driver`s reaction time and mental workload. 4 refs., 2 tabs., 5 figs.

  9. Radiative decay coefficients of highly ionized state in SOSA model%SOSA模型下高剥离态的辐射衰减速率系数

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 程新路; 张茹; 杨向东; 孟川民; 何绍奎

    2003-01-01

    在SOSA模型下,计算得出Ni-like、Cu-Like、Zn-like(Xe、Gd、Dy、Au)离子的3d-nf(n=4,5,6)的辐射衰减速率系数Ar,结果表明,由于旁观电子和核电荷数的不同,使辐射衰减速率系数呈规律性变化,同时对Ni-like Ta45+的辐射衰减速率系数与采用相对论参数势方法得出的辐射衰减速率系数作了比较,结果比较一致.

  10. Autoionization Rates Coefficients of Highly Ionized State in SOSA Model%SOSA模型下高剥离态的自电离系数

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 程新路; 李小红; 杨向东

    2001-01-01

    在SOSA模型下,计算得出Ni-like、Cu-like、Zn-like(Xe、Gd、Dy、Au)的3d-nf(n=4,5,6)的自电离系数Aa,结果表明,由于旁观电子对slater积分Rk的影响,使自电离系数呈规律性变化,同时对Ta45+的自电离系数与采用相对论参数势方法得出的自电离系数作了比较,结果比较一致.

  11. 索萨的德性知识论:问题与前景%Sosa's Virtue Epistemology: Problems and Prospects

    Institute of Scientific and Technical Information of China (English)

    方红庆

    2013-01-01

    过去四十多年来,索萨为一种复杂和深刻的知识理论提供了强有力的辩护,开辟了一个新的知识论流派,即德性知识论.这是一种基于理智德性的知识理论,它试图从信念形成的过程可靠性转向认知主体能力的可靠性,从而为知识寻找一个更为宽泛和稳定的基础.然而,一方面它可能具有可靠主义的通病,例如普遍性问题,另一方面,他的德性概念过于单薄,而且基本上是后果论式的,在解释力上存在缺陷.尽管如此,这是一条通向知识的希望之途.

  12. Optimal operation policy for three types of batch distillation columns separating binary components; 2seibun bunri bacchi joryuto no saiteki kozo to saiteki sosa

    Energy Technology Data Exchange (ETDEWEB)

    Noda, M.; Hasebe, S.; Hashimoto, I. [Kyoto Univ. (Japan)

    1997-11-01

    The optimal reflux operation which minimizes energy consumption is derived for rectifying, stripping, and total reflux columns separating binary components. The batch distillation columns are modeled as differential and algebraic equation (DAE) systems. First, each DAE system is converted to a set of algebraic equations using orthogonal collocation on finite elements. Then, the problem of finding the optimal reflux policy is formulated as a nonlinear programming problem, and it is solved using successive quadratic programming techniques. The results of the example problems show that the separation performance of the total reflux column can be improved considerably by optimizing the reflux flow rate, though the separation performance of the rectifying column can not be improved so much, even if the reflux ratio is optimized. As a result, the energy consumption of the total reflux column is equal to or less than that of the rectifying column in most cases. The reason why the separation performance of the stripping column is worse than those of the other columns is made clear using the characteristics of vapor liquid equilibrium. 4 refs., 5 figs., 3 tabs.

  13. Ab initio MO study on the thermal stability of 1-phenyl-1H-tetrazoles; Hikeikenteki bunshi kidoho ni yoru 1-Ph-1H tetorazoru yudotai no netsu anteisei hyoka ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Ono, Yoshio.; Akutsu, Yoshiaki.; Arai, Mitsuru.; Tamura, Masamitsu. [The University of Tokyo, Tokyo (Japan). School of Engineering; Matsunaga, Takehiro. [National Institute of Materials and Chemical Research, Tsukuba (Japan)

    1999-06-30

    Ab initio MO calculations of 1-phenyl-1H-tetrazoles were carried out, in order to explain a substituent effects on its high thermal stability and to estimate the thermal stability of the other tetrazoles. Similar to 1H-tetrazole, five bonds in the tetrazole ring have intermediate lengths between single and double bond lengths. Phenyl and tetrazole rings are not both on one plane showing no interaction. Three indexes addopted as a measure of thermal stability indicate that the more equal the bond lengths of the ring are and that the bigger the stabilization energy by ring formation is, the more thermally stable they are. It is found out that there is the relationship between the thermal stability and the ring charge. That is, the more negative the ring charge is, the more thrmally stable the tetrazole is. Also, there is a good relationship between the thermal stability and the energy level of orbital of which orbital is an anti bonding type with respect to the N3-N4 bond. The higher the energy level is, the more thermally stable the tetrazole is. (author)

  14. Quantum analysis in the transition process to excited state of an oxygen molecule induced by electron collisions; Denshi shototsu ni tomonau sanso bunshi ni okeru reiki jotai sen`i no ryoshironteki kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Ishimaru, K. [Gifu National College of Technology, Gifu (Japan); Okazaki, K. [Tokyo Inst. of Technology, Tokyo (Japan)

    1996-06-25

    For understanding of fundamental chemical reactions under a highly non equilibrium condition which is quite often used in plasma processing, the relevant atomic and molecular processes must be clarified. In this study, an analysis of the transition process to the excited state of an oxygen molecule induced by electron collisions in the oxygen plasma has been carried out. First, the electron density distribution in an oxygen molecule has been calculated using the extended Huckel molecular orbital method. Then, the electron potential energy distribution in the transition process to the excited state has been estimated. The electron behavior has been calculated using the estimated unidimensional electron potential energy distribution and unsteady quantum mechanics. As a result, the transition process to the excited state of an oxygen molecule induced by electron collisions and its conditions have been clarified qualitatively. 9 refs., 9 figs.

  15. Wall effect in deactivation of excited molecular oxygen {sup 1}{delta}g; Reiki sanso bunshi {sup 1}{delta}g no shikkatsu ni oyobosu hyomen hanno no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, S.; Hasegawa, Y.; Yamashita, I. [Mechanical Engineering Laboratory, Tsukuba (Japan)

    1993-10-25

    This paper discusses effects of surface reaction on deactivation of excited molecular oxygen in {sup 1}{Delta}g condition. Gaseous oxygen containing excited oxygen generated by microwave discharge at a concentration of less than 1% is flown into several kinds of tubes to be measured such as quartz tubes (with an inner diameter of about 10 mm), and the light emitting intensity of the excited oxygen was measured upstream and downstream of the tubes to be measured (with in-tube pressure of 1 Torr or 2 Torr) to derive its concentration change. The surface reaction on the tube wall was regarded as a primary reaction, and the concentration change of the excited oxygen in flows in the round tube (attributable to the surface reaction) was analyzed. With respect to effects of tube wall materials on deactivation of the excited molecular oxygen, the surface deactivation probability in the case of using low-activity materials has decreased in the order of Pyrex, PVC, quartz, PFA and PTFE. The surface deactivation probability in the case of using a metallic material, SUS316L, was about 1000 times larger than that in the quartz. 14 refs., 7 figs., 1 tab.

  16. Enhancement of hemolytic and catecholamine releasing activities of mastoparan by the dendrimeric formation; Masutoparan bunshi no jujoka ni yoru sekkekyu yoketsu sayo to katekoru amin hoshutsu sayo no kokasseika

    Energy Technology Data Exchange (ETDEWEB)

    Kurita, Takashi; Kosemura, Yoshiko; Ito, Hisashi [Aoyama Gakuin University, Tokyo (Japan). Department of Chemistry; Kumakura, Konosuke [Sophia University, Tokyo (Japan). Life Science Institute; Kasai, Hisataka [Tokyo Metropolitan University of Health Sciences, Tokyo (Japan)

    1999-08-10

    As a trial to enhance activity of bioactive peptide, the dendrimeric formation of mastoparan (MP), a wasp venom toxic peptide, was carried out. We synthesized dendrimeric MPs consisting of 2,4 and 8 MP molecules formed on a branching lysine-core, and examined the hemolytic and catecholamine releasing activities and the circular dichroism. The activities of dendrimeric MPs were higher than that of MP and the {alpha}-helical contents increased with the increase of the number of branches in the dendrimers. The most potent dendrimer in hemolytic activity, approximately 8000 times as active as MP, was octameric MP which took 35 % {alpha}-helical content even in an aqueous buffer. Our results indicated that the dendrimeric formation of an amphipathic peptide should be a useful way to obtain highly active peptide as shown already in immunogenicity. (author)

  17. Study on driving control behavior for lane change maneuver. Analysis of expert driver using neural network system; Shasen henkoji no driver sosa tokusei. Neural network system ni yoru jukuren driver no kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Z.; Okayama, T.; Katayama, T. [Japan Automobile Research Institute Inc., Tsukuba (Japan); Kageyama, I. [Nihon University, Tokyo (Japan)

    1997-10-01

    In order to study driver steering control behavior for vehicle, a driver model for single-lane change maneuver is constructed by a neural network system concerned with the man-machine-environment system. And, using sensitivity analysis, it is found that the model represent the driver control behavior, and the relation between the driver control behavior and vehicle responses. The sensitivity analysis is also examined by applying to the 2nd order predictive driver model. The validity of the sensitivity analysis is confirmed. 5 refs., 8 figs.

  18. Species and distribution of Medicine Plant Resources of Sosa and Kadsura in Guizhou%黔产蔷薇属南五味子属药用植物品种资源调查研究

    Institute of Scientific and Technical Information of China (English)

    胡奇志; 张天伦; 胡期丽

    2015-01-01

    为了摸清黔产海桐花属、茴芹属和糯米团属药用植物的种类和分布情况,采用野外考察、标本采集、分类鉴定和资料考证相结合的方法对黔产海桐花属、茴芹属和糯米团属药用植物资源进行了调查.结果表明:贵州分布有蔷薇属、南五味子属药用植物资源17种,其中,蔷薇属14种,南五味子属3种,作为贵州民族习用药,部分种类具有固精、缩尿、涩肠、止带等功效,部分种类可用于治疗烧烫伤、不孕症等.

  19. 理智德性与认知视角——论欧内斯特·索萨的德性知识论%Intellectual Virtue and Epistemic Perspective——On Sosa's Virtue Epistemology

    Institute of Scientific and Technical Information of China (English)

    郝苑

    2011-01-01

    受亚里士多德的德性伦理学的启发,索萨系统建构了德性知识论.通过将"理智德性"与"认知视角"引入知识论,德性知识论力图超越传统知识论的局限,合理把握人类认知的主观性与客观性的张力.索萨的德性知识论不仅在当代知识论中具有不可忽视的首创性和重要性,而且也为重新审视知识与德性的关系带来了新的启发.

  20. FY1995 study of evaluating satisfaction of communication devices and brain computer interface for severely disabled people; 1995 nendo judo shogaisha no communication eido sosa shudan to tekisetsusa ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Until now, the prescription of communication devices for disabled people has been dependent on the experience of technical experts who are working for them. To improve this situation, the aim of present study is to develop the objective methods for evaluating satisfaction of communication devices. Further aim of this study is to get the basic data for using electroencephalogram for thinking switch of communication devices. 1) Under imaging real communication devices, the menu of two experimental subjects were designed with three tasks which have different difficulty. Five physiological indexes (heart rate, coefficient of variation of R-R intervals, respiration rate, skin temperature and plethysmograph), which are known to closely correlated with mental stress, were studied during three different tasks in each experimental subject. In addition, psychological test were also performed before and after each tasks. In the first subject a significant difference was detected only in psychological test among three tasks. This result may come from the small difference of difficulty in each tasks of the first subject. In the second subject, significant differences were observed in the coefficient of variation of R-R intervals, the respiration rate and psychological test. Other physiological indexces, skin temperature, heart rate and plethysmograph, may be useful. However, the reconsideration will be needed to find the usefulness of these indexes for evaluating mental stress. 2) Biofeedback control of mu rhysm, an electrical brain wave, was investigated for the possibility of thinking switch in three graduate students. In one of three students, changes of amplitude were observed bilaterally although we had expected the unilateral change. Further studies will be needed to clarify the best method of biofeedback experiment. (NEDO)

  1. Comparative study of bioactivity of collagen scaffolds coated with graphene oxide and reduced graphene oxide

    OpenAIRE

    Miyaji, Hirofumi

    2014-01-01

    Izumi Kanayama,1 Hirofumi Miyaji,1 Hiroko Takita,2 Erika Nishida,1 Maiko Tsuji,3 Bunshi Fugetsu,4,5 Ling Sun,4,5 Kana Inoue,1 Asako Ibara,1 Tsukasa Akasaka,6 Tsutomu Sugaya,1 Masamitsu Kawanami1 1Department of Periodontology and Endodontology, 2Support Section for Education and Research, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan; 3Mitsubishi Gas Chemical Company, Inc., Tokyo, Japan; 4Division of Frontier Research, Research Department, Creative Research Instituti...

  2. Test and survey on a next generation coal liquefying catalyst. Coal molecule scientific test and survey as the base for commercializing the coal liquefying technology; Jisedai sekitan ekika shokubai shiken chosa. Sekitan ekika gijutsu shogyoka kiban to shite no sekitan bunshi kagaku shiken chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The test and survey on a next generation coal liquefying catalyst present a new proposal to raise catalytic activity in coal liquefaction, and perform demonstration experiments in a laboratory scale to search for possibility of developing a new coal liquefying catalyst from various viewpoints. To explain, discussions were given on the catalyst to perform the followings: liquefaction under extremely mild conditions by using ultra strong acids not limited only to metals; ion exchange method and swell carrying method to raise catalyst dispersion very highly, enhance the catalytic activity, and reduce the amount of catalyst to be used; mechanism of producing catalyst activating species to further enhance the activity of iron catalysts; and pursuit of morphological change in the activating species. The coal molecule scientific test and survey as the base for commercializing the coal liquefying technology performed the studies on the following items: pretreatment of coal that can realize reduction of coal liquefaction cost; configuration of the liquefaction reaction, liquefying catalysts, hydrocarbon gas generating mechanism, status of catalysts after liquefaction reaction, and reduction in gas purification cost by using gas separating membranes. Future possibilities were further searched through frank and constructive opinion exchanges among the committee members. (NEDO)

  3. Dream Skepticism and the Conditionality Problem

    DEFF Research Database (Denmark)

    Ahlström, Kristoffer

    2011-01-01

    Recently, Ernest Sosa (2007) has proposed two novel solutions to the problem of dream skepticism. In the present paper, I argue that Sosa's first solution falls prey to what I will refer to as the conditionality problem, i.e., the problem of only establishing a conditional---in this case, "if x......, then I am awake," x being a placeholder for a condition incompatible with dreaming---in a context where it also needs to be established that we can know that the antecedent holds, and as such can infer the consequent, i.e., "I am awake." Sosa's second solution in terms of so-called reflective knowledge......, I conclude that Sosa has not solved the problem of dream skepticism....

  4. Study on the ratio of Ni-like Au and Ga-like Au 3d -5f SOSA in Au laser produced plasma%金等离子体中类Ni和类Ga离子跃迁子阵强度比研究

    Institute of Scientific and Technical Information of China (English)

    程新路; 张红; 杨向东; 张继彦; 杨国洪

    2005-01-01

    用Cowan的原子结构从头算程序和SOSA模型计算各阶电离的金离子的能级结构和跃迁过程,在简化的碰撞辐射模型下求解能级布居数方程,计算了给定密度、不同电子温度下的金等离子体的理论合成谱.研究了类Ni和类Ga离子之间的共振线的强度比随电子温度的变化规律,利用这一变化规律可以为等离子体诊断提供辅助的方法.

  5. Theoretical calculation of the spectrum in the range of 0.47nm ~ 0.525nm for Ne-like Rb using SOSA model%SOSA模型下类氖铷离子在0.47nm~0.525nm范围内光谱的理论计算

    Institute of Scientific and Technical Information of China (English)

    张娟; 张红; 程新路

    2011-01-01

    用SOSA模型详细计算了部分类氖铷线相对于基态的能量和类氖铷离子在0.47nm ~ 0.525nm范围内的跃迁谱.计算得到的类氖铷线相对于基态能量比已有的结果更接近实验值.47nm~0.525nm范围内类氖铷跃迁谱的线谱参数由FAC程序计算得出,其带状谱中平均波长在该范围内的子阵的主要特征参数,即平均波长、半高宽和总跃迁强度由SOSA模型计算得出.的理论谱与实验谱符合得很好.

  6. Book Review Society and the object. Views from the identity, design and information / Reseña La sociedad y el objeto. Miradas desde la identidad, diseño e información

    Directory of Open Access Journals (Sweden)

    Jesús Manuel Fitch Osuna

    2014-03-01

    Full Text Available Book Review: Mercedes Mercado; Álvaro Ríos; Liliana Sosa; and Gerardo Vázquez (2012 Identity, design, information. Publisher: University of Nuevo León, Monterrey (Mexico. Pages: 195. ISBN: 978-607-27-0016-1. Reseña del libro: Mercedes Mercado; Álvaro Ríos; Liliana Sosa; y Gerardo Vázquez (2012: Identidad, diseño, información. Editorial: Universidad Autónoma de Nuevo León, Monterrey (México. Páginas: 195. ISBN: 978-607-27-0016-1.

  7. 第二节螺旋藻市场概览

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    世界上第一座螺旋藻工厂,由Sosa Texcoco公司于1973年建成投产。Sosa Texcoco湖是一个苏打湖,位于墨西哥城东北近郊。这个湖无论水质还是气候都适于螺旋藻生长。七十年代初开始工厂化生产设计施工,1973年建成投产。直到现在该公司的的产量维持在300吨左右。

  8. Intelectuales, exilio y periodismo en Cuba durante la Revolución Mexicana /

    OpenAIRE

    González Gómez, Claudia sustentante.

    2009-01-01

     tesis que para obtener el grado de Doctor en Historia, presenta Claudia González Gómez ; asesor Ignacio Sosa Álvarez. 291 páginas : ilustraciones. Doctorado en Historia UNAM, Facultad de Filosofía y Letras, 2009

  9. Fingerprinting antioxidative activities in plants

    Directory of Open Access Journals (Sweden)

    Plieth Christoph

    2009-01-01

    Full Text Available Abstract Background A plethora of concurrent cellular activities is mobilised in the adaptation of plants to adverse environmental conditions. This response can be quantified by physiological experiments or metabolic profiling. The intention of this work is to reduce the number of metabolic processes studied to a minimum of relevant parameters with a maximum yield of information. Therefore, we inspected 'summary parameters' characteristic for whole classes of antioxidative metabolites and key enzymes. Results Three bioluminescence assays are presented. A horseradish peroxidase-based total antioxidative capacity (TAC assay is used to probe low molecular weight antioxidants. Peroxidases are quantified by their luminol converting activity (LUPO. Finally, we quantify high molecular weight superoxide anion scavenging activity (SOSA using coelenterazine. Experiments with Lepidium sativum L. show how salt, drought, cold, and heat influence the antioxidative system represented here by TAC, LUPO, SOSA, catalase, and glutathione reductase (GR. LUPO and SOSA run anti-parallel under all investigated stress conditions suggesting shifts in antioxidative functions rather than formation of antioxidative power. TAC runs in parallel with GR. This indicates that a majority of low molecular weight antioxidants in plants is represented by glutathione. Conclusion The set of assays presented here is capable of characterising antioxidative activities in plants. It is inexpensive, quick and reproducible and delivers quantitative data. 'Summary parameters' like TAC, LUPO, and SOSA are quantitative traits which may be promising for implementation in high-throughput screening for robustness of novel mutants, transgenics, or breeds.

  10. Modelling atmospheric OH-reactivity in a boreal forest ecosystem

    DEFF Research Database (Denmark)

    Mogensen, D.; Smolander, S.; Sogachev, Andrey;

    2011-01-01

    as well as the vertical OH-reactivity profile. We have used SOSA; a one dimensional vertical chemistry-transport model (Boy et al., 2011a) together with measurements from Hyytiala, SMEAR II station, Southern Finland, conducted in August 2008. Model simulations only account for similar to 30...

  11. Modelling atmospheric OH-reactivity in a boreal forest ecosystem

    DEFF Research Database (Denmark)

    Mogensen, D.; Smolander, S.; Sogachev, Andrey;

    2011-01-01

    as well as the vertical OH-reactivity profile. We have used SOSA; a one dimensional vertical chemistry-transport model (Boy et al., 2011) together with measurements from Hyytiälä, SMEAR II station, Southern Finland, conducted in August 2008. Model simulations only account for ~30–50% of the total measured...

  12. Modificación estructural de la lignina extraída a partir de carbones de bajo rango para la obtención de madera sintética

    Directory of Open Access Journals (Sweden)

    Jesús Álvaro Jiménez Montoya

    2011-06-01

    Full Text Available The Universidad Distrital Francisco José de Caldas Coal Research Group has been working with lignin extraction from peat and low rank coal and using the obtained extract for synthetic wood industry. Sosa, sulfate and bisulfite methods [1] were applied in the first research step and later they were modified with the lignine extraction process from pine and cedar. Among these, Sosa method showed asthe more efficient method, so, it was used to extract lignine from low rank coal. The extracted lignin was used to prepare lignin-phenol-formaldehide resin and it works as natural fiber binder [2].In the second research step, standarization Sosa method was made [3], were pressure was modified using an pressure reactor (autoclave for a peat sample. Efficiency was improved. The obtained lignine was used to prepare resins such as phenolformaldehide- lignin, resorcinol-formaldehydelignin and polypropilen-lignin. All of them were utilized using sugar cane bagasse as natural fiber. Currently, a third research step is being developed using Sosa method and working with a peat sample.The main purpose, is to modificate the extracted lignin structure by UV radiation (physical methot and with NaOH (Chemical method so the lignin reactivity is improved in the resins production [4] and as result, to get a better quality synthetic wood.

  13. Fiscal 1997 project on the R and D of industrial scientific technology under consignment form NEDO. Report on the results of the R and D of technologies to invent original high-functional materials (technical development of structure control materials / R and D of molecular harmonized materials); 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin Energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Dokusoteki kokino zairyo sosei gijutsu no kenkyu kaihatsu (kozo seigyo zairyo gijutsu kaihatsu) bunshi kyocho zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    By establishing microtechnology using molecular-level bottoming-up (molecular harmonization) by imitating the system of living organism, the paper described the R and D of molecular harmonized materials aiming at developing high-functional/high-performance materials such as high-performance catalyst, photo-information functional materials and sensing materials. Under consignment from NEDO, Japan Chemical innovation Institute started the 5-year plan in fiscal 1997. Self-assembled molecular films, in which organic molecules are orderly arranged by self-assembly, aim at developing new memory/optical/sensing materials. Mesophase materials which are such materials as liquid crystal showing the intermediate state between solid and liquid, develop optical/photoconductive materials using precise molecular orientation controllability. Macroporous materials are such substances as zeolite having molecular size micro pores. The paper aims at establishment of synthesis techniques of them and development of high-performance catalyst, etc. using them. In the comprehensive investigational research, conducted was a survey of the trend overseas in addition to a study of subjects in question. Further, the supporting basic study was reconsigned to universities, etc. 57 refs., 62 figs., 17 tabs.

  14. Improvement of GVSRM with Addressing the Interoperability Issues in Global Village

    OpenAIRE

    Mohammad Reza Mollahoseini Ardakani; Seyyed Mohsen Hashemi

    2014-01-01

    In today's globally networked environment, enterprises need collaborating using Information Technology (IT) and other tools to succeed in this dynamic and heterogeneous business environment. The Global Village Services Reference Model (GVSRM) is a model based on SOSA (Service Oriented Strategies and Architectures) ontology for global village services realization. In this model, three architectural abstraction layers have been considered for global village: ‘infrastructure for global village s...

  15. 一种考虑实时约束的数据流卸载技术%Novel Load Shedding Approach for Real-time Data Stream Processing

    Institute of Scientific and Technical Information of China (English)

    王洪亚; 覃志东; 李柏岩; 丛静; 王志军; 杜明

    2010-01-01

    在数据流管理系统中,流数据的高到达速率和进发性等特点会引起系统过载,为此人们提出了各种卸载技术来缓解过载问题.目前几乎所有的卸载技术都使用随机丢弃数据的方法,由于随机丢弃数据策略对数据丢弃过程没有任何控制,这对某些考虑实时约束的数据流管理系统是不适合的.本文认为更为精确的卸载模型,比如文中使用的(m,k)截止期模型,更适合于一类重要的实时数据流事件检测应用.基于(m,k)截止期模型,提出一种新的策略SOSA,该策略一方面提供了可证明的卸载能力,同时也保证了系统的时间约束.为验证SOSA的有效性,设计了一种新的数据流调度算法SOSA-DBP.理论分析与模拟实验证明了SOSA-DBP比现有的算法有更好的性能.

  16. Can Risk-taking Preferences be Modified? Some Experimental Evidence

    OpenAIRE

    Booth, Alison L; Nolen, Patrick J.

    2014-01-01

    We summarise our two sets of controlled experiments designed to see if single-sex classes within coeducational environments modify studentsf risk]taking attitudes. In Booth and Nolen (2012b), subjects are in years 10 and 11, while in Booth, Cardona]Sosa and Nolen (2014), they are first]year university students randomly assigned to single]sex and coed classes. While on average females are significantly less likely than men to make risky choices, on exposure to single]sex environments the...

  17. Un aporte de Carlos Guastavino y Lima Quintana al mundo de la Nueva Canción argentina Carlos Guastavino and Lima Quintana's contribution to the world of the Argentinean New Song

    Directory of Open Access Journals (Sweden)

    Silvina Luz Mansilla

    2011-06-01

    Full Text Available El artículo se refiere a la canción Hermano compuesta por el músico Carlos Guastavino sobre una poesía de Hamlet Lima Quintana. Dedicada al editor Rómulo Lagos, fue grabada por Mercedes Sosa en 1966. Incluida como pista inicial del disco de la cantante tucumana al cual le dio su nombre, la canción constituye una evidencia de la simpatía del compositor con los postulados centrales del Nuevo Cancionero argentino. El trabajo comprende una aproximación a la temática del poema, el análisis musical de la partitura, la puesta en contexto de las circunstancias de composición y difusión y la descripción de la versión grabada por Mercedes Sosa. Aplicando la noción "mundos del arte" de Howard BECKER (1982, se interpreta la red de personas ligadas a la editorial Lagos como un tejido cooperativo que funcionó con eficacia hasta mediados de la década de 1970. Un esbozo del contexto posterior, signado por la censura, permite inferir algunos factores que incidieron en el quiebre de esa red de colaboraciones. Aunque respecto de Guastavino, se habla aquí de vinculación y no de pertenencia.Study about the song Hermano by Argentinean composer Carlos Guastavino written after a poem by Hamlet Lima Quintana. Dedicated to the editor Rómulo Lagos, the song was recorded by the Argentinean singer Mercedes Sosa in 1966. Included as the first track in that record (to which it gave its name, the song constitutes an evidence of the composer's sympathy with the central postulates of the Argentinean New Song. This paper's perspective integrates the poem's subject, the score's musical analysis, the study of the context concerning with the composition and spreading circumstances and the description of the performance recorded by Mercedes Sosa. Applying the notion of "art worlds" by Howard BECKER (1982, we interpret the persons net connected with Lagos publishing, as a co-operative and interwoven fabric that effectively worked until the mid 1970s. A sketch of

  18. Pemanfaatan Abu Tandan Kosong Kelapa Sawit Untuk Menurunkan Kandungan Minyak/Lemak BOD Dan COD Dari Limbah Cair Pabrik Kelapa Sawit

    OpenAIRE

    Sari, Riris Duma

    2011-01-01

    An investigation of the utilization of oil palm empty fruit bunch ash to reduce the content of oil/grease, BOD and COD from oil mill effluent. Samples of palm oil mill effluent from wastewater treatment plant of PT Nusantara IV (Persero) oil processing unit sopsa of Padang Lawas district. Samples taken from the last pond will be discharged into the environment. Empty Fruit of Oil Palm Ash taken from the kitchen burning empty fruit bunches PT Nusantara IVB (Persero) units Sosa of Padang Law...

  19. The dielectronic recombination process in laser-produced Au plasmas

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 程新路; 杨向东

    2003-01-01

    The calculations of the rate coefficients for dielectronic recombination (DR) along the NiI isoelectronic sequence in the ground state Au51+ through Cu-like 3d9nln′f (n, n′=4,5,6) inner-shell excited configurations are performed using the spin-orbit-split array (SOSA) model Resonant and nonresonant radiative stabilizing transitions and decays to autoionizing levels followed by radiative cascades are included. Collisional transitions following electron capture are neglected. The trend of the DR rate coefficients and the ratio of dielectronic satellite lines intensities with the change of the electron temperature are discussed.

  20. Interaction between subinterface cracks and interface in metal/piezoelectric ceramic bimaterials

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    [1]Pak,Y.E.,Crack extension force in a piezoelectric material,ASME Journal of Applied Mechanics,1990,57: 647.[2]Sosa,H.,Pak,Y.E.,Three-dimensional eigenfunction analysis of a crack in a piezoelectric material,International Journal of Solids and Structures,1990,26: 1.[3]Sosa,H.,Plane problems in piezoelectric media with defects,International Journal of Solids and Structures,1991,28: 491.[4]Sosa,H.,On the fracture mechanics of piezoelectric solids,International Journal of Solids and Structures,1992,29: 2613.[5]Park,S.B.,Sun,C.T.,Fracture criteria for piezoelectric ceramics,Journal of the American Ceramic Society,1995,78: 1475.[6]Park,S.B.,Sun,C.T.,Effect of electric fields on fracture of piezoelectric ceramics,International Journal of Fracture,1995,70: 203.[7]Suo,Z.,Kuo,C.M.,Barnett,D.M.et al.,Fracture mechanics for piezoelectric ceramics,Journal Mechanics and Physics of Solids,1992,40: 739.[8]Han,J.J.,Chen,Y.H.,Multiple parallel cracks interaction problem in piezoelectric ceramics,International Journal of Solids and Structures,1999,36: 3375-3390.[9]Suo,Z.,Singularities,interfaces and cracks in dissimilar anisotropic media,Proc.R.Soc.Lond.,1990,A 427: 331.[10]Horii,H.,Nemat-Nasser,S.,Elastic fields of interacting inhomogeneities,International Journal of Solids and Structures,1985,21: 731.[11]Budiansky,B.,Rice,J.R.,Conservation laws and energy-release rates,ASME J.of Appl.Mech.,1973,40: 201.[12]Zhao,L.G.,Chen,Y.H.,Future investigation of subinterface cracks,Archive of Applied Mechanics,1997,67: 393.[13]Chen,Y.H.,Hasebe,N.,A consistency check for strongly interacting multiple crack problem in isotropic,anisotropic,and bimaterial solids,International Journal of Fracture,1998,90: 251.

  1. Comparative study of bioactivity of collagen scaffolds coated with graphene oxide and reduced graphene oxide

    Directory of Open Access Journals (Sweden)

    Kanayama I

    2014-07-01

    Full Text Available Izumi Kanayama,1 Hirofumi Miyaji,1 Hiroko Takita,2 Erika Nishida,1 Maiko Tsuji,3 Bunshi Fugetsu,4,5 Ling Sun,4,5 Kana Inoue,1 Asako Ibara,1 Tsukasa Akasaka,6 Tsutomu Sugaya,1 Masamitsu Kawanami1 1Department of Periodontology and Endodontology, 2Support Section for Education and Research, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan; 3Mitsubishi Gas Chemical Company, Inc., Tokyo, Japan; 4Division of Frontier Research, Research Department, Creative Research Institution Sousei, 5Graduate School of Environmental Science, 6Department of Biomedical, Dental Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan Background: Graphene oxide (GO is a single layer carbon sheet with a thickness of less than 1 nm. GO has good dispersibility due to surface modifications with numerous functional groups. Reduced graphene oxide (RGO is produced via the reduction of GO, and has lower dispersibility. We examined the bioactivity of GO and RGO films, and collagen scaffolds coated with GO and RGO. Methods: GO and RGO films were fabricated on a culture dish. Some GO films were chemically reduced using either ascorbic acid or sodium hydrosulfite solution, resulting in preparation of RGO films. The biological properties of each film were evaluated by scanning electron microscopy (SEM, atomic force microscopy, calcium adsorption tests, and MC3T3-E1 cell seeding. Subsequently, GO- and RGO-coated collagen scaffolds were prepared and characterized by SEM and compression tests. Each scaffold was implanted into subcutaneous tissue on the backs of rats. Measurements of DNA content and cell ingrowth areas of implanted scaffolds were performed 10 days post-surgery.Results: The results show that GO and RGO possess different biological properties. Calcium adsorption and alkaline phosphatase activity were strongly enhanced by RGO, suggesting that RGO is effective for osteogenic differentiation. SEM showed that

  2. An Extended SISa Model for Sentiment Contagion

    Directory of Open Access Journals (Sweden)

    Zhifeng Liu

    2014-01-01

    Full Text Available One of the main differences between sentiment and infectious diseases is that the former one has two opposite infectious states: positive (optimistic and negative (pessimistic, while the latter one has not. In this paper, based on the SISa model, we consider this issue and propose a new model of sentiment contagion called the SOSa-SPSa model. The results of both numerical and agent-based simulations show that our model could explain the process of sentiment contagion better than that of Hill et al. (2010. Further analysis shows that both the numbers of optimistic and pessimistic individuals will increase with the probability of spontaneity or contagion and decrease with the probability of recovery. Potential applications of this model in financial market have also been discussed.

  3. «Homeland». A Monologue performed in the theatre of the city of Cadiz (19 March 1812. Edition, introduction and notes

    Directory of Open Access Journals (Sweden)

    María RODRÍGUEZ GUTIÉRREZ

    2013-03-01

    Full Text Available This play we have edited was performed to celebrate the promulgation of the Constitution on 19 March 1812 at the Teatro Principal in Cadiz. The edition includes a preliminary study that outlines the literary and journalistic productions of the author of the play, Luis de Sosa y Tovar, during his stay in Cadiz in the times of the Cortes. It also remarks on the actress who performed in the play, Agustina Torres, the Teatro Principal’s First Lady during the years of the Constitution period. The edition also includes a genre analysis, the content of the monologue and an analysis of the anthem that was the climax of the performance. Likewise, we have tried to provide explanations of its mythological and symbolic allusions, and shed light on certain verses.

  4. 理解信念之谜:弗雷格、克里普克、索萨

    Institute of Scientific and Technical Information of China (English)

    梅剑华

    2013-01-01

    我们试图对克里普克《信念之谜》(1979)一文做出阐释、反驳及回应,尤其说明对信念之谜的一种弗雷格式理解并不成立(见索萨(David Sosa)《信念之谜的意蕴》,1996),因为弗雷格式的意义同样导致信念之谜.我们试图捍卫克里普克的一个基本结论:信念之谜并不仅仅是关于名字的谜,而是涉及我们复杂的认知状态.

  5. 类锌金离子的双电子复合过程研究

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 冯晨旭; 张茹

    2007-01-01

    在自旋轨道劈裂阵模型(SOSA)下,理论计算出类锌Au49+的双电子复合速率系数,得出其在电子温度 0.02 keV~5.0 keV范围内的变化规律,分析不同离化度离子的能级特征,及影响双电子复合速率系数的主要因素是相应的中间自电离态旁观电子主量子数、旁观电子角动量和电离能,这为实现等离子体的诊断提供了重要的参数.

  6. Conservación de la Madera

    Directory of Open Access Journals (Sweden)

    Universidad Nacional de Colombia Facultad Nacional de Agronomía

    1941-06-01

    Full Text Available Se ha recomendado utilizar para la conservación de las maderas los bicromatos, por la propiedad que tienen de insolubilizar las gomas y la gelatina después de exposición a la luz. También se pueden conservar las maderas por medio de las sales de hierro, Sumérgense los maderos o tablas, primeramente en un baño de sulfato ferroso al 5%, donde se los tiene algunos días poro que se impregnen bien; uno vez secos, embadúrnaseles con silicato de sosa diluído de 5 grados Baumé. La madera puede conservarse de varias maneras en el presente artículo lo veremos.

  7. 类镍Dy38+离子的双电子复合速率研究%The dielectronic recombination coefficients of Ni-like Dy38+ ions

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 程新路; 杨向东; 朱俊

    2002-01-01

    在自旋轨道劈裂阵模型(SOSA)下,通过类铜组态3d9nln′l′(n′=4,5,6; l′=s,p,d),理论计算出类镍Dy38+的双电子复合速率系数,得出其在电子温度0.02-5.0keV范围内的变化规律,分析了不同离化度离子的能级特征,并分析了影响双电子复合速率系数的主要因素是相应的中间自电离态旁观电子主量子数、旁观电子角动量和电离能,这为实现等离子体的诊断提供了重要的参量.

  8. 类铜Dy37+离子的双电子复合速率研究%The dielectronic recombination coefficients of Cu-like Dy37+ ions

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 张茹; 程新路; 杨向东

    2004-01-01

    在自旋轨道劈裂阵模型(SOSA)下,通过类锌组态,理论计算出类铜Dy37+的双电子复合速率系数,得出其在电子温度0.02 keV~5.0 keV范围内的变化规律,分析了不同离化度离子的能级特征,并分析了影响双电子复合速率系数的主要因素是相应的中间自电离态旁观电子主量子数、旁观电子角动量和电离能,这为实现等离子体的诊断提供了重要的参数.

  9. Optical coherence tomography enables accurate measurement of equine cartilage thickness for determination of speed of sound.

    Science.gov (United States)

    Puhakka, Pia H; Te Moller, Nikae C R; Tanska, Petri; Saarakkala, Simo; Tiitu, Virpi; Korhonen, Rami K; Brommer, Harold; Virén, Tuomas; Jurvelin, Jukka S; Töyräs, Juha

    2016-08-01

    Background and purpose - Arthroscopic estimation of articular cartilage thickness is important for scoring of lesion severity, and measurement of cartilage speed of sound (SOS)-a sensitive index of changes in cartilage composition. We investigated the accuracy of optical coherence tomography (OCT) in measurements of cartilage thickness and determined SOS by combining OCT thickness and ultrasound (US) time-of-flight (TOF) measurements. Material and methods - Cartilage thickness measurements from OCT and microscopy images of 94 equine osteochondral samples were compared. Then, SOS in cartilage was determined using simultaneous OCT thickness and US TOF measurements. SOS was then compared with the compositional, structural, and mechanical properties of cartilage. Results - Measurements of non-calcified cartilage thickness using OCT and microscopy were significantly correlated (ρ = 0.92; p measurement of articular cartilage thickness. Although SOS measurements lacked accuracy in thin equine cartilage, the concept of SOS measurement using OCT appears promising.

  10. Constraints on English middle structures: A Lexical-Constructional analysis

    Directory of Open Access Journals (Sweden)

    Francisco J. Cortés-Rodríguez

    2013-06-01

    Full Text Available This paper provides an analysis of English middle structures within the framework of the Lexical Constructional Model (LCM, which proposes a central module, "the level 1" or "argument module", consisting of elements of syntactically relevant semantic interpretation based on the interaction between lexical and constructional templates. Hence, the first task will be to explain the "constructional template" corresponding to middle sentences in English by means of the metalanguage proposed in the model. Nevertheless, and following some of the more recent—and still programmatic—proposals (cf. Cortés and Sosa, 2008; Mairal and Ruiz de Mendoza, 2008; Cortés, 2009, the Middle Template will also include its corresponding qualia features, following Pustejovsky’s (1995 semantic theory. This extended system of representation will allow us to give a principled account of the semantic (incompatibility between lexical elements (predicates and arguments and the middle construction.

  11. Short-Term Esmolol Improves Coronary Artery Remodeling in Spontaneously Hypertensive Rats through Increased Nitric Oxide Bioavailability and Superoxide Dismutase Activity

    Directory of Open Access Journals (Sweden)

    Ana Arnalich-Montiel

    2014-01-01

    Full Text Available The aim of this study was to assess the effects of short-term esmolol therapy on coronary artery structure and function and plasma oxidative stress in spontaneously hypertensive rats (SHR. For this purpose, 14-month-old male SHR were treated for 48 hours with esmolol (SHR-E, 300 μg/kg/min. Age-matched untreated male SHR and Wistar Kyoto rats (WKY were used as hypertensive and normotensive controls, respectively. At the end of intervention we performed a histological study to analyze coronary artery wall width (WW, wall-to-lumen ratio (W/L, and media cross-sectional area (MCSA. Dose-response curves for acetylcholine (ACh and sodium nitroprusside were constructed. We also assessed several plasma oxidative stress biomarkers, namely, superoxide scavenging activity (SOSA, nitrites, and total antioxidant capacity (TAC. We observed a significant reduction in WW (P<0.001, W/L (P<0.05, and MCSA (P<0.01 and improved endothelium-dependent relaxation (AUCSHR-E = 201.2±33 versus AUCSHR = 97.5±21, P<0.05 in SHR-E compared with untreated SHR; no differences were observed for WW, MCSA, and endothelium-dependent relaxation by ACh at higher concentrations (10−6 to 10−4 mol/l for SHR-E with respect to WKY. SOSA (P<0.001 and nitrite (P<0.01 values were significantly higher in SHR-E than in untreated SHR; however, TAC did not increase after treatment with esmolol. Esmolol improves early coronary artery remodeling in SHR.

  12. Comets 169P/NEAT and P/2003 T12 (SOHO): Two possible fragments of a common ancestor?

    Science.gov (United States)

    Sosa, Andrea; Fernández, Julio Angel

    2015-08-01

    In a recent work we analyzed the orbit evolution of Jupiter family comets in near-Earth orbits, and found some comets moving on highly stable orbits, like the near-Earth asteroids (Fernández & Sosa 2015). Two of them actually show almost identical orbits; they are the comets 169P/NEAT and P/2003 T12 (SOHO). Comet 169P seems to be a few km-sized, almost inactive body, while P/2003 T12 would be a very small comet, with a sub-km radius nucleus. We performed extended orbital integrations for the past 100,000 yr to further study their dynamical evolution. We found that the orbital parameters remain stable for several thousand years, with a well defined absolute minimum of their relative spatial distance around 2900 yr in the past, coincident with a low value of the relative velocity. This spatial minimum is in a remarkable good agreement with the results obtained by means of other methods to study common origins between pairs of asteroids (Vokrouhlicky & Nesvorny 2008, Southworth & Hawkins 1963), and to test a comet-meteor shower association (Drummond 1981). Our results support the hypothesis of a breakup of a parent body, that ocurred about 2900 yr ago, as the most probable origin for the studied pair of comets. Possible fragmentation mechanisms, like thermal stress, rotational instability, or colisions, are briefly discussed.References:Drumond J.D. 1981. Icarus 45, 545-553.Fernández J.A., & Sosa A. 2015. Submitted to Planetary & Space Science.Southworth R.B., & Hawkins, G.S. 1963. Smithson. Contrib. Astrophys. 7, 261-285Vokrouhlicky D., & Nesvorny D. 2008. Astron. J. 136, 280-290.

  13. «Homeland». A Monologue performed in the theatre of the city of Cadiz (19 March 1812. Edition, introduction and notes «La patria». Monólogo representado en el teatro de la ciudad de Cádiz (el 19 de marzo de 1812. Edición, introducción y notas

    Directory of Open Access Journals (Sweden)

    María RODRÍGUEZ GUTIÉRREZ

    2013-03-01

    Full Text Available This play we have edited was performed to celebrate the promulgation of the Constitution on 19 March 1812 at the Teatro Principal in Cadiz. The edition includes a preliminary study that outlines the literary and journalistic productions of the author of the play, Luis de Sosa y Tovar, during his stay in Cadiz in the times of the Cortes. It also remarks on the actress who performed in the play, Agustina Torres, the Teatro Principal’s First Lady during the years of the Constitution period. The edition also includes a genre analysis, the content of the monologue and an analysis of the anthem that was the climax of the performance. Likewise, we have tried to provide explanations of its mythological and symbolic allusions, and shed light on certain verses.Esta pieza teatral que editamos se representó para celebrar la promulgación de la Constitución el 19 de marzo de 1812 en el Teatro Principal de Cádiz. La edición se acompaña de un estudio introductorio que incluye un esbozo de la actividad periodística y literaria de su autor, Luis de Sosa y Tovar, durante su estancia gaditana en los años de Cortes, y unas notas alusivas sobre la actriz que lo interpretó, Agustina Torres, primera dama del Teatro Principal durante el periodo constitucional. También se incluye el análisis del género y contenido del monólogo y se comenta el himno que sirvió de colofón a la representación. En las notas de la edición hemos intentado aclarar alusiones mitológicas y simbólicas y, de igual modo, esclarecer el sentido concreto de algunos versos.

  14. The spatial distribution of injuries in need of surgical intervention in Nepal

    Directory of Open Access Journals (Sweden)

    Shailvi Gupta

    2016-05-01

    Full Text Available Geographic information system modelling can accurately represent the geospatial distribution of disease burdens to inform health service delivery. Given the dramatic topography of Nepal and a high prevalence of unmet surgical needs, we explored the consequences of topography on the prevalence of surgical conditions. The Nepalese Surgeons OverSeas Assessment of Surgical Need (SOSAS is a validated, countrywide, cluster randomised survey that assesses surgical need in lowand middle-income countries; it was performed in Nepal in 2014. Data on conditions potentially affected by topography (e.g. fractures, hernias, injuries, burns were extracted from the database. A national digital elevation model was used to determine altitude, aspect, slope steepness and curvature of the SOSAS survey sites. Forward stepwise linear regression was performed with prevalence of each surgical condition as the response variable and topographic data as explanatory variables. The highest correlation coefficient was for models predicting hernias and fractures, both explaining 21% of the variance. The model fitted to death due to fall would become significant when an outlier was excluded (P<0.001; R2=0.27. Excluding the outlier yielded a better-fitted model to burn injury (stepwise regression without any explanatory variables. Other models trended towards a correlation, but did not have sufficient power to detect a difference. This study identified slight correlation between elevation and the prevalence of hernias and fall injuries. Further investigation on the effects of topography and geography on surgical conditions is needed to help determine if the data would be useful for directing allocation of surgical resources.

  15. COMPETENCIAS COMUNICATIVAS EFICACES MEDIANTE ESTRATEGIAS DE APRENDIZAJE COOPERATIVO

    Directory of Open Access Journals (Sweden)

    Alfonso García Gonzáles

    2012-12-01

    Full Text Available RESUMEN: El aprendizaje cooperativo se plantea como una de las principales medicinas de la educación: el estudiante adopta un papel activo en su proceso de aprendizaje. La cuestión metodológica es trascendental dentro de la universidad: el proyecto de construcción del Espacio Europeo de Educación Superior plantea cambios profundos en el paradigma docente, debiendo cambiar los roles del profesor y del alumno, dentro y fuera del aula. Para reforzar este argumento, se procedió a la aplicación del Cuestionario de Aprendizaje Cooperativo de Arellano, Navarro y Sosa (2007 a los 692 estudiantes matriculados en primero de Grado de Educación Primaria en el curso 2010/2011. La muestra coincidió con el universo de los estudiantes de primer año en el Grado de Educación Primaria, constituida por un 87% de mujeres y con una edad media de 19 años, lo cual permitió obtener un índice de consistencia interna de 0.83 para el instrumento. Los resultados recalcaron la importancia de potenciar el aprendizaje cooperativo en las aulas universitarias, teniendo en cuenta que son pocas las ocasiones en las que puede ponerse en juego. ABSTRACT: Cooperative learning is one of the main medicines in education: the student takes an active role in their own learning process. Methodological issues are very important within university, since the development project of the European Higher Education Area proposes very profound changes in the educational paradigm, changes in the role of teachers and students inside and outside the classroom. To give force to this argument, the implementation of Cooperative Learning Questionnaire Arellano, Navarro and Sosa (2007 was taken to 692 students enrolled in first grade of primary education in 2010-2011. The sample coincides with the universe of freshmen in the Bachelor of Primary Education, comprising 87% of women with a mean age of 19 years, which yielded an index of 0.83 for internal consistency of the instrument. The results

  16. El calendario como método de recolección de datos demográficos

    Directory of Open Access Journals (Sweden)

    Doris Sosa Jara

    2014-01-01

    Full Text Available Los estudios con diseño experimental son una rareza en las ciencias sociales. Ello a pesar de ser el medio idóneo para probar hipótesis o evacuar preguntas científicas de relaciones causa-efecto. La monografía “El calendario como método de recolección de datos demográficos” reimpresa en este número de la revista es un raro ejemplo de estudio experimental para determinar las ventajas y desventajas de este método de recolección de datos retrospectivos e historias de vida. El estudio demuestra la mejora en la calidad de ciertos datos con el uso del calendario, como por ejemplo un aumento de 37% en la proporción de abortos reportados en el calendario en comparación con el cuestionario tradicional. Pero, sobre todo, el estudio subraya la importancia, factibilidad y costo razonable de este tipo de diseños experimentales para poner a prueba métodos alternativos de recolección de información que permitan mejorar la calidad del dato.La monografía fue originalmente impresa por la Asociación Demográfica Costarricense en 1988 y una versión ampliada la publicó en inglés la revista Studies in Family Planning, Vol. 23(6, 1992. El experimento tuvo lugar como parte de la “Encuesta Nacional de Fecundidad y Salud, Costa Rica 1986”, llevada a cabo por dicha asociación en colaboración con los Centros para el Control de Enfermedades, de Atlanta, EEUU. La directora de la encuesta y autora del presente estudio fue Doris Sosa Jara, destacada demógrafa costarricense prematuramente fallecida el 15 de setiembre de 2013. La revista Población y Salud en Mesoamérica eligió para reproducir este documento de entre la variada producción de Doris Sosa, como una muestra de rigor científico en un estudio.En los funerales de Doris en el Auditorio de la Facultad de Ciencias Económicas de la Universidad de Costa Rica, facultad de la que hasta hace poco fue Decana durante 8 años, en medio de los discursos y palabras de aprecio, a uno de sus

  17. Statistical properties of levels and lines in complex spectra

    CERN Document Server

    Pain, Jean-Christophe

    2016-01-01

    We review recent developments of the statistical properties of complex atomic spectra, based on the pioneering work of Claire Bauche-Arnoult and Jacques Bauche. We discuss several improvements of the statistical methods (UTA, SOSA) for the modeling of the lines in a transition array: impact of high-order moments, choice of the distribution (Generalized Gaussian, Normal Inverse Gaussian) and corrections at low temperatures. The second part of the paper concerns general properties of transition arrays, such as propensity rule and generalized J-file sum rule (for E1 or E2 lines), emphasizing the particular role of the G1 exchange Slater integral. The statistical modeling introduced by J. Bauche and C. Bauche-Arnoult for the distribution of the M values (projection of total angular momentum J) in an electron configuration, written P(M), was extended in order to account for configurations with a high-l spectator and a new analytical formula for the evaluation of the number of E1 lines with a wider range of applica...

  18. Soil-Vegetation-Atmosphere Radiative Transfer Model in Microwave Region

    Institute of Scientific and Technical Information of China (English)

    JIA Yuanyuan; LI Zhaoliang

    2008-01-01

    The radiative transfer is one of the significant theories that describe the processes of scattering,emission,and absorption of electromagnetic radiant intensity through scattering medium.It is the basis of the study on the quantitative remote sensing.In this paper,the radiative characteristics of soil,vegetation,and atmosphere were described respectively.The numerical solution of radiative transfer was accomplished by Successive Orders of Scattering (SOS).A radiative transfer model for simulating microwave brightness temperature over land surfaces was constructed,designed,and implemented.Analyzing the database generated from soil-vegetation-atmosphere radiative transfer model under Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) configuration showed that the atmospheric effects on microwave brightness temperature should not be neglected,particularly for higher frequency,and can be parameterized.At the same time,the relationship between the emissivities of the different channels was developed.The study results will promote the development of algorithm to retrieve geophysical parameters from microwave remotely sensed data.

  19. Moralność a stronniczość (MORALITY VERSUS PARTIALITY

    Directory of Open Access Journals (Sweden)

    Piotr Bołtuć

    2005-12-01

    Full Text Available Patriotism is not a viable option for the traditional universalistic moral systems, including Kantian rationalism and especially for consequentialism. The author follows Sosa in claiming that not all forms of consequentialism have to lack 'deontic components'. He follows up with a stronger claim, that not all systems, deontic or consequentialist, have to accept strong universalism that precludes non-instrumental special moral concerns. He presents the main alternatives: (a Dancy's moral particularism; (b Nagel's idea of partiality based on the non-reducible difference between personal and impersonal view points; (c Scheffler's concern with non-voluntary special duties; (d a broad range of philosophies, from Aristotle's to the ethics of care that use non-homogenous models. The author closes by claiming that the non-homogenous models result in viable moral theories. Such theories treat ethics not as a source of moral recommendations to the effect of what should happen in a given situation, but rather as rules of a largely competitive game that adjudicate two things: (1 what each agent should do in a given situation; (2 what constraints should be imposed on the manner in which that moral competition is taking place.

  20. A federated approach for global village services interaction

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Mollahoseini Ardakani

    2014-06-01

    Full Text Available In the global village ecosystem, enterprises need collaborating using Information Technology (IT and other tools to succeed in this dynamic and heterogeneous business environment. The Global Village Services Reference Model (GVSRM is a reference model based on SOSA (Service Oriented Strategies and Architectures ontology for global village services Realization. In this model, three architectural abstraction layers have been considered for global village: ‘infrastructure for global village services’, ‘global village services provisioning’, and ‘using global village services’. Despite relative completeness of this model, one of its obvious shortcomings is lack of attention to the crucial issue of interoperability in the global village. Based on this model, the grid of global village is comprised of VHGs (Virtual Holding Governance. The VHG is a temporary, scalable, dynamic cluster/association comprising of existing or newly service provider organizations which its objective is satisfying the requirements of global village actors through electronic processes. In this paper, we will propose a federated approach for interoperability among the VHGs of the global village. Keywords: Collaboration, Global Village, GVSRM, Interoperability, Virtual Holding Governance (VHG.

  1. Improvement of GVSRM with Addressing the Interoperability Issues in Global Village

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Mollahoseini Ardakani

    2014-10-01

    Full Text Available In today's globally networked environment, enterprises need collaborating using Information Technology (IT and other tools to succeed in this dynamic and heterogeneous business environment. The Global Village Services Reference Model (GVSRM is a model based on SOSA (Service Oriented Strategies and Architectures ontology for global village services realization. In this model, three architectural abstraction layers have been considered for global village: ‘infrastructure for global village services’, ‘global village services provisioning’, and ‘using global village services’. Despite of relative completeness of this model, one of its obvious shortcomings is lack of attention to the crucial issue of interoperability in the global village. Based on this model, the grid of global village is comprised of VHGs (Virtual Holding Governance. The VHG is a temporary, scalable, dynamic cluster/association comprising of existing or newly service provider organizations which its aim is satisfying the requirements of global village actors through electronic processes. In this paper, we will propose a federated approach for interoperability among the VHGs of the global village and then improve the GVSRM by adding the corresponding interoperability components to it.

  2. Gd激光等离子体的双电子复合过程研究%Dielectronic recombination process in laser-produced Gd Plasmas

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 郭爱鹏; 张茹

    2006-01-01

    Dielectronic recombination (DR) coefficients for the ground-state ion of Ni-like Gd have been calculated through Cu-like 3d9nln′f(n,n′=4,5,6) inner-shell excited configurations using the spin-orbit-split array(SOSA) model. Resonant and nonresonant radiative stabilizing transitions and decays to autoionizing levels followed by radiative cascades are included. Collisional transitions following electron capture are neglected. Nonresonant stabilizing transitions are found to enhance DR rates, and may even dominate the process at low electron temperature . The trend of the DR rate coefficients and the ratio of dielectronic satellite lines intensities with the change of the electron temperature are discussed.%在自旋-轨道劈裂阵模型下,通过类铜的内壳层激发组态计算了类镍Gd的双电子复合速率系数,其中考虑了共振和非共振辐射平衡跃迁对自电离能级的影响,而忽略了因碰撞跃迁引起的电子俘获,非共振辐射平衡跃迁在低电子温度条件下主要影响双电子复合过程;本文讨论了双电子复合系数及双电子伴线强度比随电子温度的变化.

  3. 金激光等离子体X射线精细结构谱研究%ANALYSIS OF FINE STRUCTURE OF X-RAY SPECTRA FROM LASER-IRRADIATED GOLD DOT

    Institute of Scientific and Technical Information of China (English)

    杨国洪; 张继彦; 张保汉; 周裕清; 李军

    2000-01-01

    在"星光-Ⅱ"钕玻璃激光装置上,聚焦三倍频激光束于真空室内Au微点靶表面,形成高剥离态热等离子体光源.用Pentaerythritol(PET)(2d=0.8742nm)平晶谱仪,摄录了Au离子在0.3-0.4nm范围内的X射线发射谱.基于相对论性多组态Dirac-Fock程序包,建立了相对论性次组态平均能计算程序,结合自旋-轨道劈裂跃迁系(SOSA)理论,计算了Au离子类Cu至类Ge离子细致带结构谱孤立峰的中心波长和半高全宽.26条3d-nf(n=5,6,7)类Ni至类As离子子组态跃迁形成的孤立峰得到了辨认和归类.此结果在激光等离子体的诊断和高Z元素原子结构计算等方面具有重要的应用价值.

  4. Egg parasitoids of Megamelus spp. (Hemiptera: Delphacidae in Argentina

    Directory of Open Access Journals (Sweden)

    Serguei V. TRIAPITSYN

    2010-01-01

    Full Text Available Se revisaron los parasitoides oófagos (Hymenoptera: Eulophidae, Mymaridae, y Platygastridae de Megamelus spp. (Hemiptera: Delphacidae de la Argentina, y se presenta una clave para su identificación. Se describen cuatro especies nuevas: Anagrus (Anagrus empanadus Triapitsyn, sp. nov. (Mymaridae, parasitoide de M. scutellaris Berg que se alimenta de camalote, Eichhornia crassipes (Martius Solms-Laubach; Aprostocetus (Ootetrastichus riverplaticus Triapitsyn, sp. nov. (Eulophidae: Tetrastichinae, parasitoide de M. bellicus Marino de Remes Lenicov & Sosa; A. (Ootetrastichus yerbamatei Triapitsyn, sp. nov. (parasitoide de M. bellicus, M. scutellaris y Megamelus sp., todos de la provincia de Buenos Aires (A. (Ootetrastichus yerbamatei también se encuentra en Formosa; y Parascelio sabcli Triapitsyn, sp. nov. (Platygastridae: Scelioninae, parasitoide de M. scutellaris en Formosa, la asociación con el huésped es tentativa. Se incluyen otros parasitoides oófagos conocidos de Megamelus spp. en la Argentina, tales como Kalopolynema (Kalopolynema poema Triapitsyn & Berezovskiy (Mymaridae, parasitoide de M. scutellaris en Buenos Aires y también Cremastobaeus atratus Loiácono & Mulvani (Platygastridae: Scelioninae, parasitoide de M. scutellaris en Formosa, la asociación con el huésped es tentativa.

  5. Research Advamce of the Software Architecture of Open Robot Controllers%开放式机器人控制器软件体系结构研究进展

    Institute of Scientific and Technical Information of China (English)

    徐华; 贾培发; 赵雁南

    2003-01-01

    开放性已经成为现代机器人控制器的实现目标之一.NGC(Next Generation Controller)虽是第一个遵循开放系统体系结构标准(SOSAS)的机器人控制器,但未解决动态与非结构化环境中的实时响应问题.混合体系结构的机器人控制器LAAS虽具有一定的可扩展性,但没有深入考虑不同组件/模块间的通讯问题.NEXUS和ORC(Open Robot Controller)是正式提出开放概念的分层结构控制器,具有了开放式系统的管理和通讯机制,并提供了不同的操作接口.但其在开放式控制器的功能实现和系统建模方面仍有不足,所以未来的研究将集中于这两个方面.

  6. 秋季温室螺旋藻光合速率、呼吸速率日动态%DAILY VARIATION OF PHOTOSYNTHETIC RATE AND RESPIRATORY RATE OF SPIRULINA IN GREENHOUSE IN AUTUMN

    Institute of Scientific and Technical Information of China (English)

    巩东辉; 乔辰

    2010-01-01

    以鄂尔多斯高原碱湖的钝顶螺旋藻(S1)和2个引进种(非洲乍得湖钝顶螺旋藻S3、墨西哥Sosa Texcoco湖的极大螺旋藻S4)为实验材料,对秋季温室螺旋藻光合速率、呼吸速率日动态进行了测定.结果表明:在温室中秋季晴天螺旋藻的光合速率日变化由于出现光抑制而呈严重型双峰曲线;多云和阴天螺旋藻的光合速率与光强成正相关,呈单峰曲线;螺旋藻的呼吸速率随藻液温度的升降而升降.全天光合产物的总积累量S1要略高于S3、S4.

  7. SOSA与ROCA评价体系在银行监管中应用的思考

    Institute of Scientific and Technical Information of China (English)

    叶瑛; 胡海龙

    2006-01-01

    SOSA(Strength of Support Assessment)与ROCA(Risk Management、Operational Control、Compliance、Assets Quality)评价体系是美国监管当局评估境内外国银行分行的两大工具.SOSA体系从总行对分行的支持力度角度进行评估,ROCA体系注重对分行自身风险管理和内部控制的评估.两者的结合使用,构成了美国监管当局对外国银行分行实施分类监管的主要依据.本文介绍了两项评价体系的主要内容以及在国外监管实践中的运用,提出将此两项评价体系应用于我国商业银行分行的监管的思路.

  8. Program of energy efficiency of Mexichem Derivados Coatzacoalcos; Programas de eficiencia energetica de Mexichem Derivados Coatzacoalcos

    Energy Technology Data Exchange (ETDEWEB)

    Bulbarela Croda, Ruperto; Arce Vargas, Mauricio [Mexichem Derivados Coatzacoalcos (Mexico)

    2007-07-15

    Mexichem Derivados Coatzacoalcos is a producing company of chlorine, soda, sodium hypochlorite and salt. With the purpose of maintaining and consolidating its competitiveness in the international market and to contribute to the preservation of the environment, in 2004 initiated the Program of energy efficiency whose objectives are: to identify the opportunity areas to diminish the present power indexes, to use efficiently the energy sources of the productive activity of the plant and to promote the saving of energy in the companies of Mexichem. [Spanish] Mexichem Derivados Coatzacoalcos es una empresa productora de cloro, sosa, hipoclorito de sodio y sal. Con el fin de mantener y consolidar su competitividad en el mercado internacional y contribuir a la preservacion del medio ambiente, en 2004 inicio con el Programa de eficiencia energetica cuyos objetivos son: identificar las areas de oportunidad para disminuir los indices energeticos actuales, utilizar eficientemente los energeticos de la actividad productiva de la planta y promover el ahorro de energia en las empresas de Mexichem.

  9. Clinical utility of vandetanib in the treatment of patients with advanced medullary thyroid cancer

    Directory of Open Access Journals (Sweden)

    Deshpande H

    2011-12-01

    Full Text Available Hari Deshpande1,3, Vicky Marler3, Julie Ann Sosa2,31Department of Medicine, 2Department of Surgery, Yale University School of Medicine, 3Yale Cancer Center, New Haven, CT, USAAbstract: Vandetanib (ZD6474 became the first systemic agent to be approved for the treatment of metastatic or locally advanced medullary thyroid cancer. It was a proof of principle, because it is an orally bioavailable medication that targets the growth factors felt to be important in the pathogenesis of this disease, ie, the rearranged during transfection proto-oncogene and vascular endothelial growth factor receptor. It was tested initially in two Phase II studies at doses of 100 mg and 300 mg daily. Although activity was seen at both doses, the higher dose was chosen for a randomized, placebo-controlled Phase II study. This trial, which accrued more than 300 patients, showed a statistically significant benefit for the group taking vandetanib compared with those taking placebo medication. Progression-free survival for the vandetanib arm has not been reached, compared with 19 months for the placebo arm. The main toxicity appears to be diarrhea, although some patients experienced significant side effects, including torsades de pointes and sudden cardiac death. Therefore, it is now necessary for practitioners to enroll in a Risk Evaluation Mitigation Strategy before being allowed to prescribe this medication, to reduce the risk of serious side effects occurring.Keywords: ZD6474, medullary thyroid cancer, vandetanib

  10. [Determination of various toxic minerals in spiruline algae of different origins, and evaluation of long-term toxicity in the rat of a lot of spiruline algae of Mexican origin].

    Science.gov (United States)

    Boudène, C; Collas, E; Jenkins, C

    1975-01-01

    A detailed analytical study made on samples of Spirulines algae of various origins showed that these microorganisms may present an important telluric contamination, especially demonstrated by high levels of fluorine and arsenic they contain. A long term animal experimentation has been achieved with Spirula Maxima, obtained from the Sosa Texcoco solar evaporator. A diet contained in total proteins 25 p. 100 of dried atomized algae and was given for 75 weeks to Wistar rats. All along the experiment, the animals submitted to that diet showed no difference with control animals fed with caseine. The increase in weight was comparable for control animals and male experimented animals; a slight decrease in weight has been observed for females fed with algae up to the 30th week. At the end of the experiment, a normal frequency of tumours was noted on experimented animals. The cumulative potentiality of certain mineral toxicants, has been evaluated, when abnormal high levels of them have been detected in the Spirulines samples. The fed animals have been killed at definite times all along the experiment and the metals dosed in the body. Such a cumulative potency has been demonstrated for arsenic. On the contrary, in the case of fluorine, even particular dosages in the femoral bone could not show any significant cumulation of that toxicant, comparing with control animals. In conclusion, the authors have not noted any evident toxicity related to the samples of Spirulines tested in rats, whatever these algae were the only source of proteins in the diet. They hope anyway that the exact origin of contamination of these algaes by these metals will be better known to prevent the variations in the composition of industrial samples of Spirulines according to these metals for instance.

  11. Observations of advanced lines (M8) of Vicia (Vicia faba L.) attained with gamma radiation

    International Nuclear Information System (INIS)

    Since 1977, the Facultad de Ciencias Agricolas from Universidad Autonoma del Estado de Mexico (FCA-UAEM) in cooperation with Instituto Nacional de Investigaciones Nucleares (ININ) has been developing the research related with the use of physical mutagens in plant breeding of Vicia faba L. Starting from 1985, the Universidad Autonoma del Estado de Mexico (UAEM) is financing this research project and the Facultad de Ciencias Agricolas supplies the research personnel, the greenhouses and the experimental fields. Alternatives in plant breeding for vegetable species can be reach using the natural accumulated genetic endowment, or else by means of the production of new mutants through the application of mutagens. At the present time, mutagens can be considered as an additional element from men in its fight for the procurement of more and better food. All seems to point to the past, as well as to the future, that plant breeding task has been, is and will be to take advantage of the genetic variability already present in nature, or else to modify this variability with the more feasible technology, to fix in the population those genes which expression satisfy in a way every time more accurate, the demands of human being before the exploitation of product derived from vegetable species (A. Gustaffson 1964, mentioned by Escutia 1982). At the present, in some vegetable species as are bean, wheat, oats, maize, sesame, potatoes between others, technique of mutagenic induction by physical or chemical agents is used. The International Atomic Energy Agency (IAEA) establishes 300 varieties of asexual reproductions and 200 varieties of sexual reproduction, obtained by radiations methodology (Sosa 1983). (Author) 6 refs, 6 tabs

  12. A photometric search for activity among asteroids and Centaurs

    Science.gov (United States)

    Sosa Oyarzabal, A.; Mammana, L.; Fernández, J. A.

    2014-07-01

    We present the first results of a long-term observational campaign focused on the detection of activity in selected asteroids and centaurs. Our observational targets are near-Earth asteroids in cometary orbits (cf. [2]), the so called ''main-belt comets'' or ''active asteroids'' (well-known objects as well as potential candidates), and bright centaurs with good orbits, all close to their perihelion passages. In those objects with a former detection of activity, our aim is to contribute to a better physical knowledge of them, and determine, for instance, if the observed activity is transient or permanent. To achieve our goals, we analyzed CCD-filtered images of each observable target acquired with the 2.15-m telescope ''Jorge Sahade'' at CASLEO (San Juan, Argentina), during two runs of three consecutive nights each (during August 2013 and January 2014, respectively). Our study will be completed by future runs with the same instrumentation already assigned to our campaign. As preliminary results, we observed activity in the main-belt comets P/2013 P5 (PANSTARRS) and 133P/(7968) Elst-Pizarro. We also observed the main-belt comet (596) Scheila, which showed an unequivocally stellar appearance. We observed the main-belt comet candidate (3646) Aduatiques (cf. [1]), and noticed in this object a curious feature whose connection to some kind of activity is not well determined yet. We also observed the near-Earth asteroid in cometary orbit 2006 XL_5 (cf. [3]), and the centaurs (281371) 2008 FC_{76}, (332685) 2009 HH_{36}), (382004) 2010 RM_{64}, 2010 XZ_{78}, and 2011 UR_{402}. We have not detected activity in these objects, but an improved analysis is still in progress. %Corresponding author: Andrea Sosa (asosa@fisica.edu.uy)

  13. Dielectronic recombination process in laser-produced Xe plasmas%氙激光等离子体的双电子复合过程研究

    Institute of Scientific and Technical Information of China (English)

    焦荣珍; 冯晨旭; 张茹

    2007-01-01

    Dielectronic recombination(DR)coefficients for the ground-state ion of Ni-like Xe have been calculated through Cu-like 3d9nln'f(n,n'=4,5,6)inner-shell excited configurations using the spin-orbit-split array(SOSA)model.Resonant and nonresonant radiative stabilizing transitions and decays to autoionizing levels followed by radiative cacsades are included.Collisional transitions following electron capture are neglected.Nonresonant stabilizing transitions are found to enhance DR rates,and may even dominate the process at low electron temperature.The trend of the DR rate coefficients and the ratio of dielectronic satellite lines intensities with the change of the electron temperature are discussed.%在自旋-轨道劈裂阵模型下,通过类铜的内壳层激发组态计算了类镍氙的双电子复合速率系数,其中考虑了共振和非共振辐射平衡跃迁对自电离能级的影响,而忽略了因碰撞跃迁引起的电子俘获,非共振辐射平衡跃迁在低电子温度条件下主要影响双电子复合过程;本文讨论了双电子复合系数及双电子伴线强度比随电子温度的变化.

  14. Critical appraisal of rituximab in the maintenance treatment of advanced follicular lymphoma

    Directory of Open Access Journals (Sweden)

    Aguiar-Bujanda D

    2015-10-01

    Full Text Available David Aguiar-Bujanda, María Jesús Blanco-Sánchez, María Hernández-Sosa, Saray Galván-Ruíz, Samuel Hernández-Sarmiento Department of Medical Oncology, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain Abstract: Rituximab is an IgG1, chimeric monoclonal antibody specifically designed to recognize the CD20 antigen expressed on the surface of normal and malignant B-lymphocytes, from the B-cell precursor to the mature B-cells of the germinal center, and by most neoplasms derived from B-cells. After 2 decades of use, rituximab is firmly positioned in the treatment of follicular lymphoma (FL, both in the front line and in the relapsing disease, improving previous results by including it in classical chemotherapy regimens. However, the pharmacology of rituximab continues to generate controversial issues especially regarding the mechanisms of action in vivo. The contribution of rituximab as a maintenance treatment in FL has been significant progress in the management of this disease without an increase in side effects or a decrease in the quality of life of patients. With the widespread use of rituximab, there are new security alerts and side effects not previously detected in the pivotal trials that clinicians should learn to recognize and manage. In this article, we will review the pharmacokinetics and pharmacodynamics of rituximab, the management issues in the treatment of advanced FL focusing on maintenance rituximab, its long-term efficacy and safety profile, and its effect on the quality of life. Keywords: follicular lymphoma, long-term efficacy, maintenance, rituximab, toxicity

  15. Oxidation of SO2 by stabilized Criegee intermediate (sCI radicals as a crucial source for atmospheric sulfuric acid concentrations

    Directory of Open Access Journals (Sweden)

    M. Boy

    2013-04-01

    Full Text Available The effect of increased reaction rates of stabilized Criegee intermediates (sCIs with SO2 to produce sulfuric acid is investigated using data from two different locations, SMEAR II, Hyytiälä, Finland, and Hohenpeissenberg, Germany. Results from MALTE, a zero-dimensional model, show that using previous values for the rate coefficients of sCI + SO2, the model underestimates gas phase H2SO4 by up to a factor of two when compared to measurements. Using the rate coefficients recently calculated by Mauldin et al. (2012 increases sulfuric acid by 30–40%. Increasing the rate coefficient for formaldehyde oxide (CH2OO with SO2 according to the values recommended by Welz et al. (2012 increases the H2SO4 yield by 3–6%. Taken together, these increases lead to the conclusion that, depending on their concentrations, the reaction of stabilized Criegee intermediates with SO2 could contribute as much as 33–46% to atmospheric sulfuric acid gas phase concentrations at ground level. Using the SMEAR II data, results from SOSA, a one-dimensional model, show that the contribution from sCI reactions to sulfuric acid production is most important in the canopy, where the concentrations of organic compounds are the highest, but can have significant effects on sulfuric acid concentrations up to 100 m. The recent findings that the reaction of sCI + SO2 is much faster than previously thought together with these results show that the inclusion of this new oxidation mechanism could be crucial in regional as well as global models.

  16. Axitinib: The evidence of its potential in the treatment of advanced thyroid cancer

    Directory of Open Access Journals (Sweden)

    Hari A Deshpande, Scott Gettinger

    2009-06-01

    Full Text Available Hari A Deshpande1, Scott Gettinger1, Julie Ann Sosa21Yale Cancer Center, Department of Medical Oncology, 2Division of Endocrine Surgery, Department of Surgery, Yale University School of Medicine, New Haven, CT, USAIntroduction: Thyroid cancer is a rare disease with an incidence of around 37,000 cases per year. However, its incidence is rising faster than many other cancers and for men this disease ranks highest overall in the rate of increase (2.4% annual increase in cancer deaths. As the number of radioactive iodine-resistant thyroid cancers increases, the need for newer treatments has become more important. Axitinib is one of many new small molecule inhibitors of growth factor receptors that have shown promise in the treatment of many cancers. It targets the vascular endothelial growth factor receptors 1, 2 and 3.Aims: The goal of this article is to review the published evidence for the use of axitinib in the treatment of thyroid cancer and define its therapeutic potential. Evidence review: The major evidence of axitinib activity has appeared in meeting report abstracts. One phase II study has been published. This included patients with any histological type of thyroid cancer that was not amenable to treatment with radioactive iodine. Clinical potential: To date, in phase II clinical studies axitinib has demonstrated antitumor activity in advanced refractory thyroid cancer. As a monotherapy it resulted in a 30% response rate with another 38% of patients having stable disease. Axitinib appears to have a good tolerability profile, with hypertension being the most common grade 3 or greater side effect. Keywords: axitinib, thyroid cancer, vascular endothelial growth factor receptor

  17. Review of the safety, efficacy and patient acceptability of the combined dienogest/estradiol valerate contraceptive pill

    Directory of Open Access Journals (Sweden)

    Maurizio Guida

    2010-08-01

    Full Text Available Maurizio Guida, Giuseppe Bifulco, Attilio Di Spiezio Sardo, Mariamaddalena Scala, Loredana Maria Sosa Fernandez, Carmine NappiDipartimento di Scienze Ostetriche Ginecologiche Urologiche e Medicina della Riproduzione Umana, Università degli Studi “Federico II”, Napoli, Italia Abstract: The aim of this review is to define the role of the combined dienogest (DNG/­estradiol valerate (E2V contraceptive pill, in terms of biochemistry, metabolic and ­pharmacological effects and clinical application as well. E2V is the esterified form of 17β-estradiol (E2, while dienogest is a fourth-generation progestin with a partial antiandrogenic effect. The cycle stability is achieved with 2 to 3 mg DNG, supporting contraceptive efficacy. In this new oral contraceptive, E2V is combined with DNG in a four-phasic dose regimen (the first two tablets contain 3 mg E2V; the next five tablets include 2 mg E2V + 2 mg DNG, followed by 17 tablets with 2 mg E2V + 3 mg DNG; followed by two tablets with 1 mg E2V only, and finally two placebo tablets. Duration and intensity of scheduled withdrawal bleeding are lower with this ­contraceptive pill, whereas the incidence and the intensity of intra-cyclic bleeding are similar to the other oral contraceptive. With this new pill the levels of high density lipoprotein increased, while the levels of prothrombin fragment 1 + 2 and D-dimer remained relatively unchanged; the levels of sex hormone binding globulin, cortisol binding globulin, thyroxine binding globulin increased. The most frequently reported adverse events are: breast pain, headache, acne, alopecia, migraine, increase of ­bodyweight. The satisfaction rate is about 79.4%.Keywords: estradiol valerate, dienogest, combined oral contraceptive, four-phasic regimen, contraceptive safety

  18. Compensatory lengthening in the Spanish of Havana, Cuba: Acoustic analyses of word-internal, post-nuclear /l/ and /r/

    Science.gov (United States)

    Carlson, Kristin M.

    Given the geographic, demographic, and historical importance of Cuba vis-a-vis the dissemination of language and culture throughout the Hispanic Caribbean, one would naturally anticipate a larger corpus of scientifically-noteworthy linguistic publications on Cuban Spanish, which is far from the actual case. Moreover, the gemination of an onset positionally subsequent to the deletion of a syllable-final liquid (generally termed liquid gemination in the literature) has been repeatedly claimed yet remarkably unsubstantiated as a pervasive characteristic of Cuban Spanish, particularly of the western dialect region (cf. Alfaraz (2000, 2007, 2008), Casanellas and Alamo (1985), Choy Lopez (1985, 1988, 1989), Costa Sanchez (1987), Darias Concepcion (2001, 2005), Dohotaru (2002, 2007), Figueroa Esteva and Dohotaru (1994), Garcia Perez (2006), Garcia Riveron (1991), Haden and Matluck (1973, 1974, 1977), Isbǎsescu (1965, 1968), Lamb (1968), Levina (1970), Montero Bernal (1990, 2002, 2007a, b), Ringer Uber (1986), Ruiz Hernandez (1978), Sosa (1974), Terrell (1976), Trista and Valdes (1978), Valdes Acosta (1980), and Vera Riveron (2000)). As a result, in the interest of supplementing all antecedent work concerning the allophony of final liquids as well as affording a more descriptively-precise account of the allophony of word-internal, post-nuclear /l/ and /[Special character omitted]/ in Cuban Spanish in addition to expressly addressing the need for empirical data-collection and analysis processes, the present investigation was specifically designed and implemented to acoustically investigate the phenomenon of gemination as it is purported to occur in the Spanish of the region of Havana, Cuba: more specifically, (1) to acoustically examine the qualitative and quantitative patternings of post-nuclear /l/ and /[Special character omitted]/ within the word; and (2) to statistically evaluate the relationship between gemination and eight independent variables: gender, age group

  19. Difusión de sodio en aceitunas verdes durante el tratamiento alcalino. I: Efecto de la concentración de la lejía

    Directory of Open Access Journals (Sweden)

    Rey, Enrique

    2003-12-01

    Full Text Available The diffusion of sodium in green olives, variety Arauco/Criolla was quantitatively measured during the debittering process with lye of 1,50; 2,25 y 3,00%, at 20 ºC. With lye of 1,50%, the diffusion is apparently controlled by skin resistance resulting in smaller sodium concentrations and a more uniform debittering. With lye of 3,00%, the diffusion is more affected by flesh resistance, resulting in greater sodium concentrations and less uniform debittering. With lye of 2,25%, the diffusion of sodium is controlled by skin resistance at first and by flesh resistance thereafter. From this study, a final average concentration of 0,20 meq-Na/g-olive could be inferred as an appropriate treatment value. The experimental data were correlated with the equation: C=Ci+A*t-B (t=diffusion time, then A and B were correlated with sodium penetration distances.Se cuantificó la difusión de sodio en aceitunas verdes variedad Arauco (Criolla durante el tratamiento alcalino con lejías al 1,50; 2,25 y 3,00%, a 20 ºC. Con lejía de 1,50%, la difusión estaría controlada por la resistencia de la epidermis, resultando en menores concentraciones de sodio en la pulpa y en un tratamiento alcalino más uniforme. Con sosa al 3,00%, la difusión estaría más afectada por la resistencia de la pulpa, resultando en mayores concentraciones de sodio en la pulpa y menor uniformidad de tratamiento. Con lejía de 2,25%, la difusión estaría dominada al principio por la resistencia de la epidermis y luego por la resistencia de la pulpa. Este estudio permite inferir un valor final promedio de tratamiento de 0,20 meq-Na/g-aceituna como apropiado. Los datos experimentales se correlacionaron con la ecuación: C=Ci+A*t-B (t=tiempo de penetración, luego A y B se correlacionaron con la distancia de penetración.

  20. Optimización del Proceso de Remoción de Metales Pesados de Agua Residual de la Industria Galvánica por Precipitación Química Optimization of the Removal Processs of Heavy Metals from Raw Water of Galvanic Industry by Chemical Precipitation

    Directory of Open Access Journals (Sweden)

    Eduardo Soto

    2006-01-01

    Full Text Available Se han estudiado las condiciones óptimas requeridas para remover metales pesados del agua residual de una industria galvánica, que contiene cromo (435 mg/L, zinc (720 mg/L, hierro (168 mg/L y níquel (24 mg/L. Se usó agua preparada en el laboratorio (agua sintética y agua de la industria misma (agua cruda. El tratamiento se hizo mediante precipitación química, usando sosa para ajustar el pH y cloruro férrico como aditivo coagulante en un equipo de prueba de jarras. Las condiciones óptimas encontradas usando el agua sintética fueron: 7 minutos para el tiempo de floculación, 18 rpm para la velocidad de agitación y 11.8 mL para la dosis de coagulante. Para el agua cruda fueron: 9.5 minutos para el tiempo de floculación, 30 rpm para la velocidad de agitación y 5.2 mL para la dosis de coagulante. Las condiciones de tratamiento fueron diferentes para el agua residual cruda, ya que el agua residual cruda contiene otros contaminantes, los cuales sobrecargan la superficie coloidal, esto afecta el proceso de floculaciónThe aim of this research was to obtain the optimum conditions to remove heavy metals from wastewaters of the galvanic industry, which contain chromium (435 mg/L, zinc (720 mg/L, iron (168 mg/L and nickel (24 mg/L. The treatment was made by chemical precipitation using caustic soda to set pH and ferric chloride like coagulant aid in jar test. The responses to optimize are: flocculation time, stirring speed and coagulant dose. The optimum conditions to remove heavy metals from synthetic wastewater was, flocculation time: 7 minutes, stirring speed: 18 rpm, coagulant dose: 11.8 mL and flocculation time: 9.5 minutes,stirring speed: 30 rpm, coagulant dose: 5.2 mL for raw wastewater. The treatment conditions were different for the raw wastewater because the raw wastewater contains other pollutants which over charge the colloidal surface and affects the flocculation processes

  1. Utilization of flavonoid compounds from bark and wood: a review.

    Science.gov (United States)

    Yazaki, Yoshikazu

    2015-03-01

    Flavonoid compounds, which are extracted from bark and wood and used commercially, are flavan 3-ols as monomers and their polymers, which are called "condensed tannins". Reactions of the condensed tannins with formaldehyde are the basis for wood adhesives. In the late 1940s, tannin research for wood adhesives was begun and the world-first commercial use of wattle tannin from black wattle (Acacia mearnsii) bark as wood adhesives occurred in Australia in the 1960s. In addition, wattle tannin-based adhesives were further developed in South Africa and the uses of these adhesives have been continuing to date. The success of wattle tannin in wood adhesives is demonstrated by the collaboration of the ACIAR with the CAF in the early 1990s. Although radiata pine bark (Pinus radiata) could be a useful resource for the production of wood adhesives, three problems prevented its use in this application: low extractive yields from the bark, variable quality of the tannin extracts and excessive viscosity of the formulated tannin adhesives. In order to overcome these problems, various extraction methods have been proposed. Studies on tannin adhesives from bark of other pine species are also described. Furthermore, the use of the tannin in the bark without extraction is described as "bark adhesives" from radiata pine and black wattle. The use of radiata tannin without formaldehyde for moulded wood products is also described. Owing to the strong antioxidant activity of flavonoid compounds, bark extracts from French maritime pine (Pinus pinaster, synonym P. maritima) and radiata pine have been commercialized as nutritional supplements: Pycnogenol and Enzogenol, respectively. The background and the development of Pycnogenol and the basic difference in the preparation processes between Pycnogenol and Enzogenol are described. On the basis of the discovery that the SOSA value for wattle tannin is approximately 10 times that of extracts from pine bark supplements (Pycnogenol and Enzogenol

  2. Homenaje a Julieta Quilodrán

    Directory of Open Access Journals (Sweden)

    Viridiana Sosa

    2013-01-01

    Full Text Available El Centro de Estudios Demográficos, Urbanos y Ambientales de El Colegio de México realizó un reconocimiento a la trayectoria de la profesora investigadora Julieta Quilodrán 1 por su destacada labor en la docencia e investigación demográficas durante más de cuatro décadas. Durante el homenaje se hizo un recuento de su sobresaliente desempeño como pro - fesora investigadora en análisis demográfico; se enfatizó que Julieta Quilodrán es pio - nera en la investigación sobre familia y nupcialidad, que ha dedicado cuarenta años a investigar las transformaciones del matrimonio, la familia y la fecundidad en México y América Latina, y que es una referencia en la investigación en la demografía mundial. Además ha formado a un gran número de generaciones de demógrafos, a quienes ha inculcado el rigor en el uso de todas las metodologías del análisis demográfico. También se presentó el libro Parejas conyugales en transformación –del cual Julieta Quilodrán es compiladora–, 2 en el que se documentan desde el punto de vista demográfico los cambios ocurridos en el ámbito de la vida conyugal y familiar a partir de varios enfoques metodológicos cuantitativos, cualitativos y jurídicos. El reconocimiento y la presentación del libro se llevaron a cabo el 23 de abril de 2012 en El Colegio de México. En la ceremonia participaron Teresa Castro, Robert McCaa, Beatriz Figueroa, Viridiana Sosa, Manuel Ordorica y Silvia Giorguli. Por úl - timo, Julieta Quilodrán emitió un breve mensaje de agradecimiento. A continuación presentamos las palabras de quienes intervinieron en el acto, precedidas por una intro - ducción elaborada por Silvia Giorguli, directora del Centro de Estudios Demográficos, Urbanos y Ambientales de El Colegio de México.

  3. 夏季温室螺(节)旋藻光合及呼吸速率日动态变化规律%Daily variation of photosynthetic rate and respiratory rate of Spirulina(Arthrospira)in greenhouse in summer

    Institute of Scientific and Technical Information of China (English)

    巩东辉; 张少英; 乔辰; 刘华

    2010-01-01

    对夏季温室培养的鄂尔多斯高原碱湖的钝顶螺(节)旋藻(代号S1)和两个引进螺旋藻种(非洲乍得湖钝顶螺(节)旋藻(代号S3)、墨西哥Sosa Texcoco湖的极大螺(节)旋藻(代号S4)的光合速率、呼吸速率日动态变化规律进行了比较研究.结果表明:(1)在夏季晴天,温室中螺旋藻的光合速率日变化由于出现光抑制而呈双峰曲线,峰值分别出现在10:00时和12:00时;在夏季的多云和阴天状态下,温室中螺旋藻的光合速率日变化规律为单峰曲线.在不同天气状态下螺旋藻呼吸速率的日变化幅度较小.(2)3个螺旋藻样品的光合作用和环境因子分析显示,光强与螺旋藻光合速率之间在"午睡"情况下,呈显著负相关,在"非午睡"情况下,二者呈显著正相关(P<0.05);螺旋藻的呼吸速率随藻液温度的升降而升降,呼吸速率值S4S3S1.(3)3个样品光合产物的日积累量为晴天多云阴天.

  4. The Effect of Calcium and Boron Concentration in Culture Medium on Root Development and Flower Quality of Cut Rose%栽培基质中钙硼浓度对切花月季根系发育及切花质量的影响

    Institute of Scientific and Technical Information of China (English)

    谢庆华; 官会林; 张云峰; 严胜柒

    2008-01-01

    以切花月季"红衣主教"(Sosa hybrida Tea cv.Kardinal/Rosa maltiflora)为供试材料,研究栽培基质中钙、硼浓度对其根系及植株生长发育的影响.结果表明:Ca2+浓度由1.2 g/L增加至2.5 g/L,根重、根体积、根吸收面积、根活跃进吸收面积分别增加15.7%、21.6%、20.1%、21.4%;Ca2+浓度由2.5 g/L增加至3.8 g/L,相应指标分别增加7.5%、10.3%、10.5%、9.1%.B的浓度对相关指标的影响相对复杂,B的促进作用仅在Ca2+充分的条件下才发挥作用.试验同时表明:提高基质中的Ca2+、B浓度,对提高植株及各器官的鲜重均有明显作用.Ca2+含量的测定表明,植株吸收钙的大部分转移至地上部分,而地下部分仅保留少量的吸收钙,Ca2+在月季植株中具有较强的移动性.Ca2+、硼浓度对切花月季的枝长影响不大,而对花枝重量、花杯高度、花杯直径及瓶插寿命,随着钙浓度的提高均有不同程度的提高,特别作为在生产上的极为重要的指标一花杯高度、花杯直径最为明显.

  5. Formalization of the engineering science discipline - knowledge engineering

    Science.gov (United States)

    Peng, Xiao

    Knowledge is the most precious ingredient facilitating aerospace engineering research and product development activities. Currently, the most common knowledge retention methods are paper-based documents, such as reports, books and journals. However, those media have innate weaknesses. For example, four generations of flying wing aircraft (Horten, Northrop XB-35/YB-49, Boeing BWB and many others) were mostly developed in isolation. The subsequent engineers were not aware of the previous developments, because these projects were documented such which prevented the next generation of engineers to benefit from the previous lessons learned. In this manner, inefficient knowledge retention methods have become a primary obstacle for knowledge transfer from the experienced to the next generation of engineers. In addition, the quality of knowledge itself is a vital criterion; thus, an accurate measure of the quality of 'knowledge' is required. Although qualitative knowledge evaluation criteria have been researched in other disciplines, such as the AAA criterion by Ernest Sosa stemming from the field of philosophy, a quantitative knowledge evaluation criterion needs to be developed which is capable to numerically determine the qualities of knowledge for aerospace engineering research and product development activities. To provide engineers with a high-quality knowledge management tool, the engineering science discipline Knowledge Engineering has been formalized to systematically address knowledge retention issues. This research undertaking formalizes Knowledge Engineering as follows: 1. Categorize knowledge according to its formats and representations for the first time, which serves as the foundation for the subsequent knowledge management function development. 2. Develop an efficiency evaluation criterion for knowledge management by analyzing the characteristics of both knowledge and the parties involved in the knowledge management processes. 3. Propose and develop an

  6. A superoxide anion-scavenger, 1,3-selenazolidin-4-one suppresses serum deprivation-induced apoptosis in PC12 cells by activating MAP kinase

    Energy Technology Data Exchange (ETDEWEB)

    Nishina, Atsuyoshi, E-mail: nishina@yone.ac.jp [Yonezawa Women' s Junior College, 6-15-1 Tohrimachi, Yonezawa, Yamagata 992-0025 (Japan); Kimura, Hirokazu; Kozawa, Kunihisa [Gunma Prefectural Institute of Public Health and Environmental Sciences, 378 Kamioki, Maebashi, Gunma 371-0052 (Japan); Sommen, Geoffroy [Lonza Braine SA, Chaussee de Tubize 297, B-1420 Braine l' Alleud (Belgium); Nakamura, Takao [Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata 990-9585 (Japan); Heimgartner, Heinz [University of Zuerich, Institut of Organic Chemistry, Winterthurerstrasse 190, CH-8057 Zuerich (Switzerland); Koketsu, Mamoru [Department of Materials Science and Technology, Faculty of Engineering, Gifu University, Gifu 501-1193 (Japan); Furukawa, Shoei [Laboratory of Molecular Biology, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585 (Japan)

    2011-12-15

    study their possible applications. Black-Right-Pointing-Pointer Among new compounds, compound b showed the strongest SOSA. Black-Right-Pointing-Pointer Compound b suppressed serum deprivation-induced apoptosis in PC12 cells. Black-Right-Pointing-Pointer Compound b suppressed apoptosis by promoting the activation of MAP kinase.

  7. Estudio Químico, Micrográfico y Morfológico del Ricinus communis L., y su Aplicación en Pulpa Blanqueable

    Directory of Open Access Journals (Sweden)

    Teófilo Escoto García

    2014-01-01

    Full Text Available México posee una gran gama de especies vegetales no maderables o arbustivos, de los cuales se sabe muy poco, y para el caso del Ricinus communis L., existen trabajos sobre el uso de la semilla en biocombustibles y en la obtención de celulosa a partir del tallo. Con estos antecedentes se recolectó un espécimen de Ricinus communis , se descortezó y astilló para llevar a cabo los análisis de composición química, micrográfico y morfológico del tejido leñoso; aplicando además un proceso químico a la sosa para la obtención de celulosa blanqueable mediante secuencia OD/OP/D, evaluando las propiedades de resistencia fisicomecánica y viscosidad, así como blancura y opacidad. La composición química indica que el contenido en holocelulosa (85.0 % y alfa celulosa (66.3 % se encuentra dentro de los parámetros para papel. El análisis micrográfico reportó la relación de Runkel con un grado II y el análisis morfológico reportó que las fibras tienen una longitud promedio de 1.057 mm y pared de 4.4 m de espesor; con gran posibilidad de producir papel de buena calidad. Las condiciones para la obtención de pulpa se dan en 25 % reactivo, 160 °C, 120 minutos de cocción y 26 minutos de refinación. El tratamiento de blanqueo reportó un grado de blancura de 86.8 % y una viscosidad de 10.7 cp. Concluyendo que de acuerdo a sus componentes químicos, características micrográficas y morfológicas el Ricinus communis L ., técnicamente es viable para su aplicación en pulpa blanqueable.

  8. Ablation and optical third-order nonlinearities in Ag nanoparticles

    Directory of Open Access Journals (Sweden)

    Carlos Torres-Torres

    2010-11-01

    Full Text Available Carlos Torres-Torres1, Néstor Peréa-López2, Jorge Alejandro Reyes-Esqueda3, Luis Rodríguez-Fernández3, Alejandro Crespo-Sosa3, Juan Carlos Cheang-Wong3, Alicia Oliver31Section of Graduate Studies and Research, School of Mechanical and Electrical Engineering, National Polytechnic Institute, Zacatenco, Distrito Federal, Mexico; 2Laboratory for Nanoscience and Nanotechnology Research and Advanced Materials Department, IPICYT, Camino a la Presa San Jose, San Luis Potosi, Mexico; 3Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México, D.F. 01000, MéxicoAbstract: The optical damage associated with high intensity laser excitation of silver nanoparticles (NPs was studied. In order to investigate the mechanisms of optical nonlinearity of a nanocomposite and their relation with its ablation threshold, a high-purity silica sample implanted with Ag ions was exposed to different nanosecond and picosecond laser irradiations. The magnitude and sign of picosecond refractive and absorptive nonlinearities were measured near and far from the surface plasmon resonance (SPR of the Ag NPs with a self-diffraction technique. Saturable optical absorption and electronic polarization related to self-focusing were identified. Linear absorption is the main process involved in nanosecond laser ablation, but nonlinearities are important for ultrashort picosecond pulses when the absorptive process become significantly dependent on the irradiance. We estimated that near the resonance, picosecond intraband transitions allow an expanded distribution of energy among the NPs, in comparison to the energy distribution resulting in a case of far from resonance, when the most important absorption takes place in silica. We measured important differences in the ablation threshold and we estimated that the high selectiveness of the SPR of Ag NPs as well as their corresponding optical nonlinearities can be strongly significant for laser

  9. Editorial

    Directory of Open Access Journals (Sweden)

    Carolina Santamaría Ulloa

    2014-01-01

    ón para el monitoreo de los derechos de los adultos mayores de Argentina y Uruguay, basado en el enfoque de los derechos humanos.El quinto artículo científico realiza una evaluación de la energía y los macronutrientes de la alimentación servida a niños y niñas menores de seis años en centros de cuido y hogares comunitarios de la Gran Área Metropolitana de Costa Rica; en él, Zúñiga y Fernández concluyen que la mayoría de los platos servidos a esta población de estudio no cumplen con el aporte de energía recomendado, mientras que el aporte de carbohidratos superó las recomendaciones en todos los centros estudiados.El sexto artículo nos traslada a México; en él, Reyes y Álvarez evalúan los programas de formación de promotores para la prevención y el control de la tuberculosis en la región fronteriza de Chiapas. Las autoras elaboran sus conclusiones en torno a la importancia de la participación comunitaria para definir el problema de la tuberculosis y reflexionar sobre los posibles caminos a seguir. Se demuestra la eficacia de la capacitación de promotores y su utilidad en el proceso de tratamiento de la tuberculosis a nivel comunitario.Nuestra sección de documentos históricos es un homenaje póstumo a la Dra. Doris Sosa Jara, quien fue decana de la Facultad de Ciencias Económicas de la Universidad de Costa Rica por espacio de ocho años, además de activa colaboradora de esta revista. Luis Rosero hace una caracterización del aporte académico de la Dra. Sosa, y nos recuerda su carrera profesional y las cualidades humanas que siempre la caracterizaron.De parte del Comité Editorial de Población y Salud en Mesoamérica, les extendemos las más sinceras gracias a todos los autores por elegirnos como portal electrónico para la publicación de sus estudios académicos e investigaciones, y a los lectores, quienes son los que nos alientan a continuar trabajando para mejorar la calidad de nuestras publicaciones.

  10. VB studies on bonding features of HNCHCN

    Institute of Scientific and Technical Information of China (English)

    LIAO; Xinli(

    2003-01-01

    University Press, 1960, 64-107.[13]Sosa, C., Noga, J., Purvis, G. D. et al., An application of the full CCSDT coupled-cluster method to potential-energy curves-- the CH4→CH3+H dissociation, Chem. Phys. Lett., 1998, 153(2-3): 139-146.[14]Wu, W., Song, L. C., Mo, Y. R. et al., XIAMEN--An ab initio Spin-Free Valence Bond Program, Xiamen: Xiamen University, 1999.[15]Li, Q. M., Fu, X. Y., The topological characteristics of the structures in the vicinity of the transition state of HCN-HNC isomerization, Acta Phys. Chem. Sinica (in Chinese), 1992, 8(6): 724-727.[16]Pau, C. F., Hehre, W. J., Heat of formation of hydrogen isocyanide by ion-cyclotron double-resonance spectroscopy, J. Phys. Chem., 1982, 86(3): 321-322.

  11. Reflection on a Recent Development of Epistemic Logics%对认知逻辑一个新发展的若干省思

    Institute of Scientific and Technical Information of China (English)

    王文方

    2014-01-01

    当代有关于外在世界的激进怀疑论者常利用知识封闭性原则去论证他们的立场。为了反驳这样的怀疑论,有些学者主张我们应该重新检视知识的标准,以便发现这些怀疑论论证中的问题,特别是知识封闭性原则是否成立的问题。在这些学者中,有两类极为受到重视:一类是主张知识的成立与否只涉及“相关的”可能性是否已被排除的相关选择理论学者,如D. Lewis、F. Dretske、和M. Heller,另一类则是主张知识的成立与否与某些虚拟条件是否为真有关的虚拟论者,如R. Nozick、E. Sosa、和K. DeRose。不幸的是,对于这两类理论的讨论往往流于直觉并因而缺乏逻辑的严谨性。为了弥补这个缺点,W. Holliday最近利用了两种新的形式化语意论去重新模塑上述两类理论,并严格证明了每种理论在知识封闭性问题上的逻辑结果。他的形式化工作和证明带来了极为严格而又丰硕的成果,本论文的主旨便在对Holliday这一个认知逻辑的新发展方向作出若干哲学与逻辑上的省思。%Contemporary skeptics about our knowledge of the external world typically argue for their position by appealling to principles of knowledge closure. To respond to the skeptical challenge, some epistemologists propose that we need to re-examine our crite-rion of knowledge so as to expose problems of these skepticist arguments. This maneu-ver, in particular, has something to do with the issue whether any principle of knowledge closure is plausible or not. One approach of this direction concerns with the“relevant alternatives”proposal. Dretske, Lewis, and Heller are the main advocators. Another approach, advocated by Nozick, Sosa, and DeRose, concerns with whether and how the truth of some subjunctive conditionals is relevant to our attribution of human knowledge. Unfortunately, the two approaches are typically based on mere intuitions and lack logical

  12. Energy saving using solar filters with iron base in windows; Ahorro de energia usando filtros solares con base en hierro en ventanas

    Energy Technology Data Exchange (ETDEWEB)

    Chavez Galan, Jesus

    2003-07-01

    termico generado al interior de las edificaciones por las inadecuadas propiedades de los materiales de construccion, se desarrollaron en este trabajo filtros solares con base en hierro por medio de los cuales se logra un control selectivo de la radiacion solar que se transmite a traves de las ventanas. Estos filtros solares consisten en peliculas delgadas de FeO depositadas sobre sustratos de vidrio cal-sosa (el mas usado en nuestro pais para las edificaciones) de 600x300x3 mm, por medio de la tecnica de sputtering asistida con radiofrecuencia y magnetrones planos, partiendo de un blanco de hierro puro de 127x254 mm y usando un plasma de argon. Para obtener el grado de oxidacion deseado en el hierro, pequenas muestras (45 x 22 mm) fueron sometidas a un proceso de calentamiento en una atmosfera reductora constituida de 50% H{sub 2} + 50% N{sub 2}, durante un periodo de tiempo de 10 minutos a una temperatura de 400 C. Los filtros solares con base en FeO presentan una transmisividad de 30.2% para el intervalo visible del espectro electromagnetico (radiacion con longitud de onda de 380-780 nm), y de 39.9% para el infrarrojo cercano (radiacion con longitud de onda de 780-2500 nm); mientras que su reflectividad es de 17.5 y 19%, para los intervalos visibles e infrarrojo cercano del espectro electromagnetico respectivamente. Se realizo una simulacion, a traves del software Energy 10, del comportamiento energetico de una casa-habitacion cuando utilizan en las ventanas vidrios simples (una lamina) tipo cal-sosa, asi como tambien cuando esta misma edificacion usa en las ventanas los filtros solares con base en FeO desarrollados. Ambos casos se comparan obteniendose asi los posibles ahorros de energia por el uso de dichos filtros solares en las ventanas. Las simulaciones fueron llevadas a cabo para diferentes localidades del pais, obteniendose que los filtros solares con base en FeO desarrollados, permiten ahorros de energia principalmente por concepto de acondicionamiento de aire

  13. Lesson Ⅰ Open Architecture-Developing Tendency of CNC System%第一讲开放式体系结构-数控系统发展的潮流

    Institute of Scientific and Technical Information of China (English)

    王正兵; 任偲

    2002-01-01

    Workstation/Machine Controller)和开放式系统体系结构标准SOSAS(Standards of Open System Architecture for Automatic Systems),首次提出了开放式体系结构的概念.1992年,欧共体开始实施自动化系统控制装置的开放系统体系结构计划OSACA(Open System Architecture for Control Within Automation Systems).经过十多年的发展,开放性一词已经深入人心,并且体现在相关产品中.开放式数控系统成为CNC发展的潮流.

  14. 经皮心包穿刺术进行室性心律失常心外膜标测和消融的应用体会%Application of pericardial puncture for mapping and ablation of ventricular arrhythmias

    Institute of Scientific and Technical Information of China (English)

    薛玉梅; 詹贤章; 廖洪涛; 方咸宏; 魏薇; 刘洋; 廖自立; 邓海; 吴书林

    2015-01-01

    with VA who ac-cepted the subxyphoid pericardial puncture ( Sosa ’ s method ) for epicardial mappings. There were 28 men, 12 women,aged(46±13)years. Sixteen patients suffered from non-ischemic cardiomyopathies(NICM),11 arrhythmo-genic right ventricular cardiomyopathies( ARVC) ,3 ischemic cardiomyopathies( ICM) ,10 idiopathic VA. We ana-lyzed how to minimize the occurrence of complications associated with this technique,and how to rapidly recognize and treat the complications that they encountered. Results The pericardial punctures were done successfully at the first attempt in 25 patients,while in 15 patients the pericardial puncture were done successfully at the second attempt or more. Fifteen pericardial punctures were directed to the anterior wall of the right ventricle,while 25 were directed to the inferior wall. Totally in 35 cases(87. 5%) the ablations were successful,including targets on the epicardium in 15 patients,targets on both the endocardium and the epicardium in 14 patients,targets on the endocardium in 6 patients demonstrated by the combined endocardial and epicardial mappings. The combined en-docardial and epicardial ablation failed in two patients with ventricular tachycardias due to NICM. The ablations in 2 cases with idiopathic premature ventricular contractions were abandoned due to vicinity of coronary arteries. In one patient,the ablation was given up due to coronary artery injured by puncture. Totally 13 patients(32. 5%)suf-fered from complications including a severe one(2. 5%). There were 6 cases(15%)of right ventricular injuries without adverse results. There were 2 cases(5%)of bleeding in pericardial cavities,cured by drainage. The guide-wires entered the pleural cavities in 2 cases(5%),without adverse results. There was one case(2. 5%) of late pericardial tamponade,cured by drainage of 80 ml effusion. There was one case of acute pericardial tamponade due to injury of coronary artery,cured by emergent surgery. Thirty-five(87. 5%) patients