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Sample records for sun ling wang

  1. [Deep acupuncture at Baliao points (eight sacral foramina) by Professor WANG Ling-Ling and its clinical application].

    Science.gov (United States)

    Cai, Hai-Hong; Wang, Ling-Ling

    2014-03-01

    With deep acupuncture at Baliao points (eight sacral foramina) as the core, Professor WANG Ling-ling has treated diseases of urinary, digestive and reproductive systems with superior therapeutic effect. The key for efficacy of Baliao points is deep acupuncture. Only deeply insert into acupoints with long needles and directly stimulate at sacral nerves, could Baliao points play a superior role in treatment effect. Searching acupoints is the basis of deep acupuncture, and superficial anatomy should be combined to summarize the methods of searching Baliao points. The premise of deep acupuncture is needling manipulation. The angles of needles must be adjusted according to morphological features of posterior sacral foramina, or it is hard to practice deep acupuncture into Baliao points. The description of location and manipulation on Baliao points in ancient and modern literature was vague, which restricts clinical application of Baliao points. A lot of research on location, manipulation and clinical application of Baliao points has performed by Professor WANG Ling-ling, and its manipulation and clinical cases are introduced to make a positive effect on its application and popularization.

  2. A Short Proof to Some Results of Sun and Wang

    Institute of Scientific and Technical Information of China (English)

    Wei Cao

    2007-01-01

    We give a short proof to some results of Sun and Wang on counting the number of solutions of a class of equations over finite fields. Our proof is elementary and only based on matrix properties and recursion techniques.

  3. 王昌龄诗歌的用典分析%Allusions in Poems by Wang Chang-ling

    Institute of Scientific and Technical Information of China (English)

    张妮

    2015-01-01

    Wang Chang ling was popular in Tang Dynasty because of his poems, especially frontier poems, boudoir poems, farewell poems. This paper analyses allusions in poems by Wang Chang ling, and try to investigate Wang Chang ling's knowledge structure and the influence on Wang's personality. Then we can make a discussion on the characteristic of Wang's allusions.%“诗家夫子”王昌龄在盛唐颇享盛誉﹐以其边塞诗、闺怨诗、送行诗为后人所称道﹐本文将从王昌龄诗歌所用的典故情况出发﹐探讨王昌龄的知识结构及其对王昌龄思想个性的影响﹐从而得出王昌龄诗歌的用典特点。

  4. Experience ofWANG Song-ling for treating migraine%王松龄治疗偏头痛经验

    Institute of Scientific and Technical Information of China (English)

    僧志飞; 王松龄

    2015-01-01

    Migraine was a common internal disease, and belonged to headache with internal injury. TCM paid attention to Bianzheng Lunzhi and Zhibing Qiuben. In treatment, doctors could treat symptoms at first for acute patients. Prof. WANG Song-ling treated the disease based on his experience. He used decoctions plus external therapies in treatment. Clinical efficacy was confirmed.%偏头痛为内科常见病,多属内伤头痛范畴,也可因外邪引发。对于头痛的治疗,中医注重辨证论治及治病求本,对于急性发作者,亦可塞鼻先治其标。王松龄教授结合多年临床经验,对头痛的治疗独具匠心,辨证时首察病因,明辨风痰瘀虚,审因论治,临证上遣方用药巧妙灵活,且配合外治法,临床疗效肯定。

  5. On Chinese-style Narrative in Wang Hai-ling' s Novels%论王海鸰小说的中国式叙事

    Institute of Scientific and Technical Information of China (English)

    林珊

    2015-01-01

    Besides the pattern of "nearly cruel calmness" revealing the factors affecting love and marriage in Wang Hai-ling' s novels, which has arousing people ' s deep thoughts, there ' s another reason why they are so popular is that her Chinese narrative, which conforms to the Chinese readers' esthetic habit and easily arouses the emotional sympathy. However, there are few people studying this Chinese-style narrative. The Chinese narrative which is integrated with the Chinese traditional culture mainly shows in three aspects, i.e. the image-building of kindness, the modern deduction of gifted scholars with beautiful ladies, and the motif description of happy reunion.%王海鸰的婚恋小说之所以倍受青睐,除了她以"冷静而近乎残忍"的方式揭示出影响爱情婚姻的诸多因素而引起人们的深思之外,其小说的中国式叙事方式十分符合中国读者的审美习惯、容易引起情感共鸣亦是重要原因,然在王海鸰的研究中对此却未曾论及. 这种融入了中国传统文化因素的中国式叙事主要表现在具有"尚善"特点的形象塑造、"才子佳人"模式的现代演绎、"大团圆" 母题的另类书写等三个方面.

  6. 汪绂《医林纂要探源》的整理研究%The Collecting and Studying of Wang Fu's "YiLing CuanYao TanYuan"

    Institute of Scientific and Technical Information of China (English)

    王甜; 江凌圳

    2015-01-01

    [目的]对清代名家汪绂及著作《医林纂要探源》进行系统的整理研究。[方法]应用文献整理方法,对汪绂的生平、《医林纂要探源》版本进行考证,对其治学理念、学术思想进行研究评述。对《医林纂要探源》的作者、版本和主要内容进行了系统研究。[结果]汪绂为婺源段莘人,东南名儒,生平坎坷,并常识渊博,精通医药。虽未从医,但授学著书,读书细致,治学严谨,共撰写30多种书稿。《医林纂要探源》为其医学代表作,集诸家医书分类编辑而成,现存两个清刻本和一个清抄本,其中最早的是婺源和源单氏刻本,遗经堂藏板。全书以医源为先导,以中药、方剂为重心,而推《素》《灵》微言为纲领,循叙人体病变为正宗,对中医基础理论和疾病辨证论治作了全面而深刻的阐述[结论]对汪绂及其著作《医林纂要探源》系统的整理研究有重要的文献价值,汪绂细致严谨、引经据典、博采众长的治学理念和作风值得后世继承和发扬。%Objective]Collecting and studying Wang Fu and his book "YiLing CuanYao TanYuan" systematically. [Method]Literature research on Wang Fu's life and the versions of"YiLing CuanYao TanYuan", reviewing his concept of study and academic thoughts. [Result]Confucian Wang Fu wrote more than 30 manuscripts, his medical masterpiece“YiLing CuanYao TanYuan", existing versions of two Qing printed editions and one Qing transcript, guided by medical source, centered on traditional Chinese medicine and prescription, accounted for human disease, made a comprehensive and profound elaboration on the basic theory of TCM.The recipes and traditional Chinese medicine of this book have clinical significance . [Conclusion]The collecting and studying have important literature value. These are worthy of our future generations to inherit and carry forward.

  7. Wang Jing

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    WANG JING studies fashion modeling at the Beijing Institute of Clothing Technology (BICT). Her course of study is new at BICT, established only two years ago. In 1993, when BICT admitted its first group of modeling students, Wang passed the examination along with 13 other young women. The following year BICT admitted 28 more students. Wang has inherited her talent for art from both parents. Her mother is a music teacher at a middle school, and her father

  8. A Probe into Sun Zhiwei’s Association with Wang Maolin%孙枝蔚与汪懋麟交游考

    Institute of Scientific and Technical Information of China (English)

    杨泽琴

    2014-01-01

    孙枝蔚与汪懋麟为清初扬州诗坛重要诗人,他们尽管政治取向不同,但在性情、意气、兴趣等方面又颇相侔而交谊甚笃。对二人交游情况的考述,可使诗人的诗文活动获得淋漓的生气感、饱满的艺术感、丰厚的历史感,凸显他们的个性和风神,亦可藉此蠹测当时之士风趋向。%Sun Zhiwei and Wang Maolin were important poets in Yangzhou in the early Qing Dy-nasty.Despite their political orientation was different,their friendship was very deep in terms of their temperament,spirit and interest.By proving into their friendship,we can obtain a dripping sense,a full artistic sense and a rich history sense to highlight their personality and style and to measure the tendency of that time.

  9. Wang Fuzhi's Inheritance and Development on the Military Thoughts of Sun Tzu%王夫之对孙子军事思想的继承与发展

    Institute of Scientific and Technical Information of China (English)

    李兆禄

    2011-01-01

    On the basis of Confucianism, Wang Fuzhi studied and absorbed Sun Tzu's military thoughts and made his own development. Wang Fuzhi inherited Sun Tzu's thoughts of"be cautious about war". Holding a cautious attitude to warfare, Wang Fuzhi put forward that to obtain the victory, there must be "Ren" and "de", which is the root of running the army and national rejuvenating. He developed Sun Tzu's " utilize combined energy " thinking, Inherit and developed Sun Tzu's "law" in his thoughts of" Five keys", paid attention to military supplement and war preparation. In addition, Wang Fuzhi has also developed a set of thoughts about the role of the Lord, the general, the soldier,emphasizing strategy, and maneuvers direct and indirect Wang Fuzhi's military thinking is in the absorption of The Art of War as the representative of the outstanding traditional military thoughts, based on this formation,it is a is an important component in. traditional military thinking%王夫之以儒家思想为基础,借鉴吸收孙子军事思想,并对其加以继承发展。王夫之继承孙子“慎战”思想,对战争持审慎态度,认为要兴盛取胜,必须推行仁德,这才是兴国治军之根本。继承发展孙子“任势”思想,强调作战要因势制敌。继承发展孙子“五事”中“法”的思想,重视足食足兵,教兵备战。此外,王夫之还发展了孙子有关主、将、卒的作用和相互关系思想,重谋思想以及奇正思想。王夫之的军事思想是在吸收以孙子兵法为代表的优秀传统军事思想的基础上形成的,是我国传统军事思想的一个重要组成部分。

  10. Sun

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Sun Microsystems, Inc. is committed to open standards,a standardization system, and sharing within the information tech nology field, focusing not only on technical innovation, but also on new ideas, practices and future development.

  11. Non-material Cultural Heritage Interpretation of Nuo Dance the Sun Tour and Wang Hua Sacrifices%傩舞《游太阳》与汪华祭祀的非物质文化遗产解读

    Institute of Scientific and Technical Information of China (English)

    徐芳

    2016-01-01

    傩舞是一种古老的文化现象,历史悠久,是早期人类生活实践的产物,在我国影响十分深远。《游太阳》是傩舞的一种,盛行于徽州府的祁门县,发展中逐渐向周边扩展。《游太阳》具有原始性,后逐渐从祈祷农事向祭祀汪华转变,形成了地方特色文化,成为我国重要的非物质文化遗产。%The sun tour belongs to the Nuo dance, Nuo dance is one of the witch dance, the nuo is an ancient cultural phenomenon in China, it is a product of early human life practice with a long history and very profound influence in China. The Sun Tour prevails in Qimen county of Huizhou mansion in history, and gradually it expands to the surrounding in the course of development, the place of The sun tour has the primitiveness, in developing gradually evolved, praying from farming to sacrifice of Wang Hua.

  12. Neo-Taraxacum Y. R. Ling & X. D. Sun, Genus novum et Addenda Subfamiliae Liguliflorae, Familiae Compositarum%菊科一新属,管花蒲公英属和菊科舌状花亚科的补充记载

    Institute of Scientific and Technical Information of China (English)

    林有润; 孙秀殿

    2001-01-01

    基于菊科原蒲公英属管花蒲公英(Taraxacum siphonathum S.D.Sun Xuc-jum Gc,Jirshncr ct Stipanck)头状花序含两性狭窄管状花的特点,与原蒲公英属有较大的差别,因而将其分出,另立一新属,管花蒲公英属(Neo-Taraxacum Y.R.Ling et S.D.sun),含管花蒲公英[Neo-Taraxacum siphonathum(S.D.Sun,Xue-jun Ge,Jirshner et Stipanek)Y.R.Ling et S.D.Sun]一种.另外对菊科原舌状花亚科(Subfam.Liguliflorae)作补充订正,即除大部分属种的头状花序含两性舌状花外,补充个别属的头状花序含两性狭窄管状花.

  13. Conversation with Walter Ling.

    Science.gov (United States)

    Ling, Walter

    2015-01-01

    In this occasional series, we record the views and personal experiences of people who have especially contributed to the evolution of ideas in the journal's field of interest. Dr Walter Ling is a neurologist and psychiatrist, and is Director of the Integrated Substance Abuse Programs (ISAP) at the University of California, Los Angeles (UCLA), one of the foremost substance abuse research groups in the world. Dr Ling led pivotal clinical trials in the United States for all three of the only US Food and Drug Administration-approved opiate pharmacotherapies, levo-acetylmethadol (LAAM), buprenorphine and naltrexone, and is leading ongoing efforts for approval for sustained-release buprenorphine.

  14. The Textual Research on the Relationship among the Biography of Wang Shi, the Stories of Stone Sun Li in Song Dynasty, and the Water Margin%《青琐高议·王实传》与宋话本“石头孙立”、《水浒传》关系考辨

    Institute of Scientific and Technical Information of China (English)

    朱仰东

    2011-01-01

    The story of Sun Li occupies an important position in the Water Margin. As early as in Song Dynasty, there existed the colloquial story of Sun Li. As the story text was lost, it was impossible to verify. Through the contrast of the stories of Sun Li described in the Biography of Wang Shi, in the Incidents in the period of Xuanhe of Song Dynasty, and in the Water Margin, through the text screening, and the analysis of folk diffusion, it can be inferred, as a system of story, there were some links between the Biography of Wang Shi and the Story of Stone Sun Li in Song Dynasty, and they can be regarded as a part of the source of the Water Margin stories and they have a close relation to the Water Margin.%孙立故事在水浒故事中具有重要地位。早在宋代就有了关于孙立的话本,由于文本佚失,其内容已不可考。将《青琐高议·王实传》与《大宋宣和遗事》、《水浒传》中有关孙立的情节进行比对,经过文本甄别、民间传承分析,推理认为,作为一个故事系统,《青琐高议·王实传》中孙立故事与宋话本“石头孙立”存在着一定的联系,可视为水浒故事源流的一部分,与《水浒传》关系密切。

  15. On the Ling Long Yi.

    Science.gov (United States)

    Xu, Z.-T.; Sun, X.-C.

    It was recorded in history that Guo Shou-Jing constructed thirteen astronomical instruments during the calendar reform which was led by him in the early Yuan Dynasty. One of those was called "Ling Long Yi". It is still an open question to identify what kind of astronomical instrument the Ling Long Yi is.

  16. Ruhed - Ruhedsmåling

    DEFF Research Database (Denmark)

    Andreasen, Jan Lasson

    Dette forelæsningsnotat omhandler begreber og definitioner inden for ruhedsmåling. Ruhedens rolle i forbindelse med fremstilling og funktionsegenskaber gennemgåes, hvorefter der redegøres for angivelse af ruhed på tegninger. Herefter gennemgåes begreber indenfor måling og kvantificering af ruhed....

  17. 浅论孙诒让《札迻·素问王冰注校》的校勘特点%Brief Discussion on SUN Yi-rang ’ s Collation Characteristics in ZHA YI SU WEN WANG BING ZHU JIAO

    Institute of Scientific and Technical Information of China (English)

    孙庆炜

    2016-01-01

    SUN Yi-rang’ s ZHA YI SU WEN WANG BING ZHU JIAO played an important role in history of SU WEN’ s collation. The purpose of this paper was to sum up the characteristics of collation, that is learning widely from others' strong points, picking up the es-sence, quoting and seeking broad-mind, detailed examination and resolution, striving for realism rigorously, believing in doubt, inves-tigating the hidden mysteries of things, analysis of small things and mysteries, exploring traceability, studying comprehensively.%在《素问》的校勘史上,孙诒让的《札迻·素问王冰注校》占有十分重要的地位。将其校勘特点总结为“博采众长、撷其精英,引征广博、详审细辨,严谨求实、信守存疑,探幽索隐、析微阐奥,循流溯源、综合考辨”。

  18. 谁是Wang Wei?

    Institute of Scientific and Technical Information of China (English)

    陶西平

    2008-01-01

    2007年美国物理学会主席在美国的权威物理学杂志上发表了一篇文章,题目是《谁是Wang Wei?》。文章的大意是说在美国的杂志上发表文章的中国学者的名字都是使用英语字母来表示的,他举例说,像用英文字母表示的Wang Wei在中国可以找出许多用不同汉字表示的人名,我们很难判断Wang Wei到底是谁。

  19. Wang Tiles in Computer Graphics

    CERN Document Server

    Lagae, Ares

    2009-01-01

    Many complex signals in computer graphics, such as point distributions and textures, cannot be efficiently synthesized and stored. This book presents tile-based methods based on Wang tiles and corner tiles to solve both these problems. Instead of synthesizing a complex signal when needed, the signal is synthesized beforehand over a small set of Wang tiles or corner tiles. Arbitrary large amounts of that signal can then efficiently be generated when needed by generating a stochastic tiling, and storing only a small set of tiles reduces storage requirements. A tile-based method for generating a

  20. Rising Dance Star Wang Dongmei

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Wang Dongmei, a Harbin native and agraduate of the People’s Liberation Army ArtCollege, is a rising young dancer currently servingin the Dancing and Singing Ensemble of the PLA’sAir Force. She joined the army in February 1978,

  1. ling af virksomheders administrative byrder

    DEFF Research Database (Denmark)

    Langsted, Lars Bo

    2004-01-01

    Selskabsstyrelsen har offentliggjort rapporten: "Rapport om måling af virksomhedernes administrative byrder ved årsregnskabsloven og rapport om revisionshonorar for B-virksomheder."......Selskabsstyrelsen har offentliggjort rapporten: "Rapport om måling af virksomhedernes administrative byrder ved årsregnskabsloven og rapport om revisionshonorar for B-virksomheder."...

  2. ling af inklusion - Survey 2015

    DEFF Research Database (Denmark)

    Bengtsson, Steen

    2016-01-01

    ling af inklusion er en undersøgelse, der foretages hvert andet år. Målingen belyser udvikling for personer på handicap på følgende områder: • Uddannelse • Beskæftigelse • Samfundsdeltagelse. Kapitel 1 indeholder de første resultater af måling, som bygger på mere end et øjebliksbillede. Grundla...

  3. Wang Guowei's Application of Kant

    Directory of Open Access Journals (Sweden)

    JINLI HE

    2015-01-01

    Full Text Available Wang Guowei (1887-1927 was a late Qing scholar who assumed a pioneer role in introducing Western philosophy and is regarded as the founder of Chinese ideas about philosophical and literary-aesthetic modernity. His introduction and interpretation not only has been inspiring later scholars to be interested in European philosophy but also being a “showcase” of the “localness” of a cultural interpretation. This paper focuses on Kant’s influence on Wang Guowei, especially Wang’s use of Kant’s epistemological, ethical and aesthetic theories to reconstruct the important Chinese philosophical conceptions, such as, 'xing'性, 'li'理, 'ming'命, 'ya'雅 and what he called as Confucius’ 'meiyuzhuyi'美育主義(aesthetic educational-ism and aims to achieve a better grasp of the continuity and revolution that accompany the emergence of Chinese modernity as well as a better understanding of comparative culture (philosophy in its “primitive” phase.

  4. Sun Allergy

    Science.gov (United States)

    ... if you have unusual, bothersome skin reactions after exposure to sunlight. For severe or persistent symptoms, you may need ... m. when the sun is brightest. Avoid sudden exposure to lots of sunlight. Many people have sun allergy symptoms when they ...

  5. Communicating between the Apple and the Wang

    Energy Technology Data Exchange (ETDEWEB)

    Barton, G.W., Downey, R.

    1982-10-26

    This manual covers what the beginner needs to know in order to transfer files between an Apple's Microcomputer and a Wang's OIS Word Processor. We have also tried to indicate where the experienced user might want to look for additional details. We cover the use of Apple Writer )(, VisiTerm, VisiCalc, and EasyWriter Professional. For us, the two most useful connections are from Applewriter to Wang and from Visicalc to Wang. From Wang to Apple Writer via Visiterm may have some value. Files can be transferred by VisiTerm to Wang, but they arrive with RETURNS in the middle of words, which have to be edited out, so we do not recommend it. We describe how to go from EasyWriter to Wang, but we do not know how to go from Wang to EasyWriter. We see no reason to go from Wang to VisiCalc, so we haven't thought about it. All instructions are given for a typical configuration of the Apple, namely the one on which this manual was composed. It is detailed in the section on Hardware and Software.

  6. Wang Shufen,A Psychiatric Nurse

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    WANG Shufen, a cheerful 26, has been a nurse at a psychiatric hospital for seven years. However, when asked about her profession, she still says "I’m a nurse," omitting "in a psychiatric hospital." Wang wanted to become a nurse after she left middle school. She applied to several nurse training schools, and was

  7. Daidzein: A review of pharmacological effects | Sun | African Journal ...

    African Journals Online (AJOL)

    Meng-Yao Sun, Ying Ye, Ling Xiao, Khalid Rahman, Wei Xia, Hong Zhang ... is an isoflavone with extensive nutritious value and is mainly extracted from soy plants. ... Results: Daidzein is reported to play a significant role in the prevention and ...

  8. Lingüística e arqueologia

    Directory of Open Access Journals (Sweden)

    FUNARI Pedro Paulo Abreu

    1999-01-01

    Full Text Available A retrospectiva lançará luz sobre as relações entre a Lingüística e a Arqueologia, chamando atenção para a História da Arqueologia e a influência dos modelos lingüísticos para o desenvolvimento dos esquemas interpretativos da Arqueologia. Será feita referência a teóricos histórico-culturais, como Gordon Childe, a arqueólogos processuais influenciados pelo Estruturalismo e à análise de discurso pós-processual. O artigo concluirá ressaltando a importância da Lingüística para o pensamento arqueológico.

  9. Bordieu e a lingüística aplicada

    OpenAIRE

    Maria de Lourdes Otero Brabo Cruz

    1991-01-01

    Procura-se no presente trabalho: (a) analisar as concepções de Bourdieu no que diz respeito à competência lingüística e ao tratamento dos fatos lingüísticos; (b) traçar um paralelo entre essas concepções e a lingüística aplicada; e (c) definir a sua postura como sendo a de um lingüista aplicado.

  10. Bordieu e a lingüística aplicada

    Directory of Open Access Journals (Sweden)

    Maria de Lourdes Otero Brabo Cruz

    2001-02-01

    Full Text Available

    Procura-se no presente trabalho: (a analisar as concepções de Bourdieu no que diz respeito à competência lingüística e ao tratamento dos fatos lingüísticos; (b traçar um paralelo entre essas concepções e a lingüística aplicada; e (c definir a sua postura como sendo a de um lingüista aplicado.

  11. Radon - kilder og måling

    DEFF Research Database (Denmark)

    Rasmussen, Torben Valdbjørn; Wraber, Ida Kristina

    Når man skal vurdere en bygnings indeklima er det vigtigt at have viden om radonindholdet. Denne viden får man ved måling, da radon hverken kan ses, lugtes, høres, smages eller føles. Denne anvisning redegør for radons oprindelse og indvirkning på menneskers sundhed. Anvisningen beskriver metoder...... til måling og analyse af radonindholdet i en bygnings indeluft. Læseren får indsigt i, hvordan man relativt let med standardiserede metoder kan eftervise, om en bygning opfylder bygningsreglementets krav til radon i indeluften. Anvisningen henvender sig til bygningsejere, bygherrer, projekterende og...

  12. The ABCs of Chinese Pop: Wang Leehom and the Marketing of a Global Chinese Celebrity

    Directory of Open Access Journals (Sweden)

    Grace Wang

    2012-06-01

    Full Text Available How did singer Wang Leehom, a Chinese American raised in the suburbs of New York, end up becoming one of the industry heavyweights of Mandopop (Mandarin-language pop music? This essay uses Wang as a case study to investigate how discourses of race, market, and belonging are reworked in global contexts. Drawing on Sau-ling Wong’s theoretical insights on transnational processes of race, citizenship, and belonging, it argues that Wang capitalizes on a fluid dynamic of sameness and difference to appeal to a heterogeneous Chinese-speaking audience that stretches across China to Taiwan, Hong Kong, Southeast Asia, and the greater Chinese diaspora. Through an examination of the racial and national contexts that frame Wang’s participation in Mandopop, this essay analyzes the particular calibrations of Chineseness that emerge from the singer’s music and public image and the imperfect translation of identities such as Chinese American, Chinese diasporic, and Chinese across diverse linguistic and national communities.

  13. Aztec Suns

    Science.gov (United States)

    Petersen, Hugh

    2010-01-01

    The Aztec Sun Stone is a revered Mexican artifact. It is said to be perhaps the most famous symbol of Mexico, besides its flag. It primarily depicts the four great disasters that led to the migration of the Mexica people to modern-day Mexico City. The Aztec Sun Stone also contains pictographs depicting the way the Mexica measured time, and was…

  14. Aztec Suns

    Science.gov (United States)

    Petersen, Hugh

    2010-01-01

    The Aztec Sun Stone is a revered Mexican artifact. It is said to be perhaps the most famous symbol of Mexico, besides its flag. It primarily depicts the four great disasters that led to the migration of the Mexica people to modern-day Mexico City. The Aztec Sun Stone also contains pictographs depicting the way the Mexica measured time, and was…

  15. 10. Temadag indenfor Koordinatmåling

    DEFF Research Database (Denmark)

    Larsen, Erik; De Chiffre, Leonardo

    2004-01-01

    Temadag om Optisk koordinatmåling, 3D digitalisering og Reverse Engineering Conference on Optical Coordinate Metrology, 3D Digitisation and Reverse Engineering Konferencemappe Oktober 2004 Editorer: Leonardo De Chiffre & Erik Larsen Institut for Produktion og Ledelse Danmarks Tekniske Universitet...

  16. Sun meter

    Science.gov (United States)

    Younskevicius, Robert E.

    1978-01-01

    A simple, inexpensive device for measuring the radiation energy of the sun impinging on the device. The measurement of the energy over an extended period of time is accomplished without moving parts or tracking mechanisms.

  17. The Sun

    CERN Document Server

    Golub, Leon

    2017-01-01

    Essential for life on earth and a major influence on our environment, the Sun is also the most fascinating object in the daytime sky. Every day we feel the effect of its coming and going – literally the difference between day and night. But figuring out what the Sun is, what it’s made of, why it glows so brightly, how old it is, how long it will last – all of these take thought and observation. Leon Golub and Jay M. Pasachoff offer an engaging and informative account of what scientists know about the Sun, and the history of these discoveries. Solar astronomers have studied the Sun over the centuries both for its intrinsic interest and in order to use it as a laboratory to reveal the secrets of other stars. The authors discuss the surface of the Sun, including sunspots and their eleven-year cycle, as well as the magnetism that causes them; the Sun’s insides, as studied mainly from seismic waves that astronomers record on its surface; the outer layers of the Sun that we see from Earth only at eclipses ...

  18. Midnight sun

    Energy Technology Data Exchange (ETDEWEB)

    Brunger, A.P.; Lambert, S.B.; Gagnon, M.P.

    1990-09-01

    Midnight Sun, the University of Waterloo's solar-electric car, was designed and built by about 30 engineering, kinesiology and physics students for the GM Sunrayce USA held in July 1990. The car measures 2 m by 4.2 m, weighs 224 kg, can collect about 1000 W of solar electricity in full sun, and had a top speed of 79 km/h. The race took 11 days to cover the 1644 miles from the Epcot Center in Lake Buena Vista, Florida to the GM Technical Center in Warren, Michigan. Thirty-two cars, powered only by solar energy, competed in this race. Midnight Sun showed its potential during the race qualifying runs by completing the required qualifying course with the 12th fastest time of 52.83 seconds, and the 6th fastest trap speed of 63 km/h. During the Sunrayce, Midnight Sun came in second on day 1 of the race, tenth on day 6, and eighth on day 7, and was one of only 17 solar cars that were able to make it up the toughest hill in the race on day 8. The most serious problems encountered by the car were a weak rear suspension, power losses, and failure of bypass diodes in the photovoltaic array. Midnight Sun was in 17th place overall at the end of day 9. At about 11:00 am on day 10 in Ohio, the Waterloo car was moving at 60 km/h when it was bumped off the road by an out of control pickup truck. The solar car driver was not hurt. Despite the difficulties, the next day Midnight Sun was repaired and driven across the finish line at the ceremonial finish. After receiving time penalties for not completing the last day and a half of the race, Midnight Sun was awarded 24th place with an official cumulative time of 114 h 37 min 15 s. 4 figs., 4 tabs.

  19. A Generalized Sagnac-Wang-Fizeau formula

    CERN Document Server

    Ori, Amos

    2016-01-01

    We present a special-relativistic analysis of deformable interferometers where counter propagating beams share a common optical path. The optical path is allowed to change rather arbitrarily and need not be stationary. We show that, in the absence of dispersion the phase shift has two contributions. To leading order in $v/c$ one contribution is given by Wang empirical formula for deformable Sagnac interferometers. The second contribution is due to the stretching of the optical path and we give an explicit formula for this stretch term valid to first order in $v/c$. The analysis provides a unifying framework incorporating the Sagnac, Wang and Fizeau effects in a single scheme and gives a rigorous proof of Wang empirical formula.

  20. Potato Expert Wang Yu’e

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    WHENEVER I sit in the McDonald’s in Beijing, sipping a cola and savoring the golden French fries, I shall always think of a woman I got acquainted with in Qinghai Province. Her name is Wang Yu’e, but the locals call her "potato expert." Wang Yu’e is the vice director of the Botany Protection Institute of the Qinghai Provincial Academy of Agricultural and Forest Sciences; at the end of 1993 she was ratified by the State Council as a

  1. Wang Deguang's Last Wish

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    THE countdown had already begun for the end of Wang Deguang's life. Wang Deguang would be executed two days later. The young prison guard was quite sincere as he asked the prisoner for his final wishes. "Number 5a, tomorrow you'll be allowed to order some of your favorite dishes, dumplings or steamed stuffed buns. Besides, you'll also be allowed a few cups of beer since our leader knows you are a heavy drinker. But you should not drink too much. You know, even this is already a special favor for you."

  2. Little Sun

    DEFF Research Database (Denmark)

    Ebbesen, Toke Riis

    2017-01-01

    the ideas of Alfred Gell’s anthropology of art and the indicative framework derived from Argentinian semiotician Juan Pablo Bonta and Jørn Guldberg. The toy-like solar lamp Little Sun by Olafur Eliasson and Frederik Ottesen is used as case that blends the registers of social design and art......, and as an example of how designers attempt to determine meaning potentials through design in a complex interplay of different strategies. In the final analysis, what characterise objects like Little Sun is seldom that they communicate their meanings in themselves, but instead rely on forceful mediations to gain...

  3. Little sun

    DEFF Research Database (Denmark)

    Ebbesen, Toke Riis

    2017-01-01

    the ideas of Alfred Gell’s anthropology of art and the indicative framework derived from Argentinian semiotician Juan Pablo Bonta and Jørn Guldberg. The toy-like solar lamp Little Sun by Olafur Eliasson and Frederik Ottesen is used as case that blends the registers of social design and art......, and as an example of how designers attempt to determine meaning potentials through design in a complex interplay of different strategies. In the final analysis, what characterise objects like Little Sun is seldom that they communicate their meanings in themselves, but instead rely on forceful mediations to gain...

  4. Wang-Landau integration --- The application of Wang-Landau sampling in numerical integration

    Science.gov (United States)

    Li, Ying Wai; Wuest, Thomas; Landau, David P.; Qing Lin, Hai

    2007-03-01

    Wang-Landau sampling was first introduced to simulate the density of states in energy space for various physical systems. This technique can be extended to numerical integrations due to certain similarities in nature of these two problems. It can be further applied to study quantum many-body systems. We report the feasibility of this application by discussing the correspondence between Wang-Landau integration and Wang-Landau sampling for Ising model. Numerical results for 1D and 2D integrations are shown. In particular, the utilization of this algorithm in the periodic lattice Anderson model is discussed as an illustrative example.

  5. Wang Chunlu, A Strong-Willed Skater

    Institute of Scientific and Technical Information of China (English)

    JENNIFER; LIM

    1998-01-01

    BEFORE the ’98 Winter Olympic Games, the psychology teacher of the China National Speed Skating Team asked each member to write down a few words expressing their state of mind. "Others can’t scramble over you unless you yourself bend down," wrote Wang Chunlu, a young skater from Changchun.

  6. Wang Shutong: A Woman Who Enjoys Change

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    "My friends tell me I am lucky. When Microsoft became a giant, I was already workingthere. At the time Cisco ranked first in terms of market value, I was marketing general manag-er of Cisco China, and when network fever swept across China, Ijoinedjoyo.com," says WangShutong, her eyes gleaming.

  7. Sun Proof

    Centers for Disease Control (CDC) Podcasts

    2012-10-23

    In this podcast for kids, the Kidtastics talk about the harmful effects of the sun and how to protect yourself from it.  Created: 10/23/2012 by Centers for Disease Control and Prevention (CDC).   Date Released: 10/23/2012.

  8. Magnitude of the Wang-Landau error

    Science.gov (United States)

    Brown, Gregory; Rikvold, PA; Odbadrakh, Kh; Nicholson, DM

    2016-09-01

    The Wang-Landau algorithm is an entropic sampling method that incoroporates an update factor ln fi , which introduces a self-avoidance tendency into the random walk. Continued sampling at constant ln fi leads to a steady state estimate of the density of states ln gi (E). We find numerically that the difference between ln gi (E) and the true density of states ln g (E) is proportional to the update factor.

  9. THE LIFE AND LOVES OF WANG LUOBIN

    Institute of Scientific and Technical Information of China (English)

    JANE SHAW

    1994-01-01

    WANG was born in 1913 in Beijing. When he studied at the Beijing Art School, he fell in love with Luo Shah, who was five years younger than he. Luo’s grandfather was an official in charge of salt transportation at the end of the Qing Dynasty. Her father was a professional revolutionary. The sharp contradiction between her feudal family background and her progressive thoughts made her a radical youth. When Luo left Beijing for her hometown in Henan Province after the

  10. Critical endpoint behavior: A Wang Landau study

    Science.gov (United States)

    Landau, D. P.; Wang, Fugao; Tsai, Shan-Ho

    2008-07-01

    We study the critical endpoint behavior using an asymmetric Ising model with two- and three-body interactions on a triangular lattice, in the presence of an external field. The simulation method we use is Wang-Landau sampling in a two-dimensional parameter space. We observe a clear divergence of the curvature of the spectator phase boundary and of the magnetization coexistence diameter derivative at the critical endpoint, and the exponents for both divergences agree well with previous theoretical predictions.

  11. Analizadores Multilingües en FreeLing

    Directory of Open Access Journals (Sweden)

    Lluís Padró

    2012-01-01

    Full Text Available FreeLing es una librería de código abierto para el procesamiento multilíngüe automático, que proporciona una amplia gama de servicios de análisis lingüístico para diversos idiomas. FreeLing ofrece a los desarrolladores de aplicaciones de Procesamiento del Lenguaje Natural funciones de análisis y anotación lingüística de textos, con la consiguiente reducción del coste de construcción de dichas aplicaciones. FreeLing es personalizable y ampliable, y está fuertemente orientado a aplicaciones del mundo real en términos de velocidad y robustez. Los desarrolladores pueden utilizar los recursos lingüísticos por defecto (diccionarios, lexicones, gramáticas, etc, ampliarlos, adaptarlos a dominios particulares, o –dado que la librería es de código abierto– desarrollar otros nuevos para idiomas específicos o necesidades especiales de las aplicaciones. Este artículo presenta los principales cambios y mejoras incluidos en la versión 3.0 de FreeLing, y resume algunos proyectos industriales relevantes en los que se ha utilizado.

  12. Analizadores Multilingües en FreeLing

    Directory of Open Access Journals (Sweden)

    Lluís Padró

    2012-01-01

    Full Text Available FreeLing es una librería de código abierto para el procesamiento multilíngüe automático, que proporciona una amplia gama de servicios de análisis lingüístico para diversos idiomas. FreeLing ofrece a los desarrolladores de aplicaciones de Procesamiento del Lenguaje Natural funciones de análisis y anotación lingüística de textos, con la consiguiente reducción del coste de construcción de dichas aplicaciones. FreeLing es personalizable y ampliable, y está fuertemente orientado a aplicaciones del mundo real en términos de velocidad y robustez. Los desarrolladores pueden utilizar los recursos lingüísticos por defecto (diccionarios, lexicones, gramáticas, etc, ampliarlos, adaptarlos a dominios particulares, o –dado que la librería es de código abierto– desarrollar otros nuevos para idiomas específicos o necesidades especiales de las aplicaciones. Este artículo presenta los principales cambios y mejoras incluidos en la versión 3.0 de FreeLing, y resume algunos proyectos industriales relevantes en los que se ha utilizado.

  13. Numerical integration using Wang Landau sampling

    Science.gov (United States)

    Li, Y. W.; Wüst, T.; Landau, D. P.; Lin, H. Q.

    2007-09-01

    We report a new application of Wang-Landau sampling to numerical integration that is straightforward to implement. It is applicable to a wide variety of integrals without restrictions and is readily generalized to higher-dimensional problems. The feasibility of the method results from a reinterpretation of the density of states in statistical physics to an appropriate measure for numerical integration. The properties of this algorithm as a new kind of Monte Carlo integration scheme are investigated with some simple integrals, and a potential application of the method is illustrated by the evaluation of integrals arising in perturbation theory of quantum many-body systems.

  14. Cuestiones clave de la Lingüística

    OpenAIRE

    Laborda, Xavier; Romera Barrios, Lourdes; Fernández Planas, Ana Ma. (Ana María)

    2013-01-01

    Juan Carlos Moreno Cabrera, catedrático de lingüística en la Universidad Autónoma de Madrid, acaba de publicar el libro Cuestiones clave de la Lingüística . Este título se suma a una extensa producción, en la que Moreno Cabrera se ocupa de teoría sintáctica ( Fundamentos de Sintaxis General , 1987),tipología lingüística (El Universo de las lenguas, 2003), ensayo (El nacionalismolingüístico, 2008) y manuales (Curso Universitario de Ling üística general, 1991-2000), entre otros campos de estudi...

  15. Wang-Landau sampling for homopolymer collapse

    Science.gov (United States)

    Seaton, Daniel T.; Mitchell, Steven J.; Landau, David P.

    2008-03-01

    We explore the behavior of a continuum-homopolymer model using the Wang-Landau algorithm, concentrating on phase transitions such as the coil-globule and solid-liquid transitions. Using the density of states generated by the Wang-Landau algorithm, we calculate various thermodynamic quantities, e.g., the internal energy and specific heat. We also study how algorithmic parameters, such as sampling boundaries (maximum and minimum energies for random walks) and the final value of the modification factor, affect these quantities. In particular, we observe how the sampling boundaries can significantly alter the transition behavior. Our results are compared with two recent studies that yielded contradictory results, one using the bond-fluctuation model and the other using a continuum model similar to our own. We find that the transitions seen in our model are much more similar to those in the bond-fluctuation study. The careful analysis of the effects of algorithmic parameters on thermodynamic quantities should be relevant to the study of other polymeric/protein models.

  16. The Wang-Landau Sampling Algorithm

    Science.gov (United States)

    Landau, David P.

    2003-03-01

    Over the past several decades Monte Carlo simulations[1] have evolved into a powerful tool for the study of wide-ranging problems in statistical/condensed matter physics. Standard methods sample the probability distribution for the states of the system, usually in the canonical ensemble, and enormous improvements have been made in performance through the implementation of novel algorithms. Nonetheless, difficulties arise near phase transitions, either due to critical slowing down near 2nd order transitions or to metastability near 1st order transitions, thus limiting the applicability of the method. We shall describe a new and different Monte Carlo approach [2] that uses a random walk in energy space to determine the density of states directly. Once the density of states is estimated, all thermodynamic properties can be calculated at all temperatures. This approach can be extended to multi-dimensional parameter spaces and has already found use in classical models of interacting particles including systems with complex energy landscapes, e.g., spin glasses, protein folding models, etc., as well as for quantum models. 1. A Guide to Monte Carlo Simulations in Statistical Physics, D. P. Landau and K. Binder (Cambridge U. Press, Cambridge, 2000). 2. Fugao Wang and D. P. Landau, Phys. Rev. Lett. 86, 2050 (2001); Phys. Rev. E64, 056101-1 (2001).

  17. Lingüística e innovación

    OpenAIRE

    Fernández Pérez, Milagros

    2012-01-01

    En el capítulo se defiende que la Lingüística más reciente es innovadora porque define aplicaciones del conocimiento, porque aborda los usos comunicativos de las lenguas y porque subraya el interés de los datos procedentes del habla in vivo. Se destierran de este modo rutinas de investigación en temas manidos y con métodos limitados a una corriente exclusiva. Los nuevos derroteros se roturan desde los inventarios de la lingüística de corpus y, sobre todo, se trazan mediante objetivos de trans...

  18. Rehumanisasi Pendidikan Akuntansi melalui Pendekatan Epistemologi 3ling

    Directory of Open Access Journals (Sweden)

    Kurnia Ekasari

    2014-08-01

    Full Text Available The purpose of this research is to rehumanize accounting education by employing 3ling epistemology. The method used in this research consisted of 3 steps: ngerti, ngrasa, and ngelakoni. This research concluded that dehumanization in accounting education has become accepted reality. Humanization in accounting education could be implemented by integrating ethics, moral and spirituality both in accounting and accounting education and it could be done by inserting ngrasa in learning process. Humanizing accounting education will lead to human welfare. The implementation of 3ling epistemology could change the student’s perception about accounting.

  19. Yinglai Wang: an admirable biochemist for his foresightedness and selflessness

    Institute of Scientific and Technical Information of China (English)

    Baoyuan Zhang; Pangao Xue; EnduoWang

    2011-01-01

    On July 5,2001,Nature published an article:"Wang Ying-lai (1907 2001)" in honor of Dr.Yinglai Wang and his contributions to the advancement of total chemical synthesis of biological molecules.It is rather rare for Nature to descdbe a biochemist in this manner.However,Yinglai Wang is an admired and revered scientist,and as such,deserves such an honor! His scientific achievements and exemplary morality should be acknowledged by the scientific community and must be emulated by people from all walks of life.

  20. Introducción a aplicaciones de la lingüística

    OpenAIRE

    Vega Moreno, Érika

    2015-01-01

    El curso "Introducción a aplicaciones de la lingüística recoge los materiales de clase de "Aplicaciones de la lingüística", asignatura del primer curso del grado de Lingüística y Lenguas Aplicadas, impartida por la profesora Érika Vega Moreno.

  1. Introducción a la Lingüística

    OpenAIRE

    Crespo Miguel, Mario; Sánchez-Saus Laserna, Marta

    2015-01-01

    Curso de iniciación a la Lingüística. Los aspectos tratados son: Tema 1. La Lingüística. Tema 2. Comunicación y lenguaje. Tema 3. Perspectivas de estudio del lenguaje. Tema 4. Los niveles de análisis lingüístico. Tema 5. Las dimensiones del lenguaje y su estudio.

  2. Free energy computations employing Jarzynski identity and Wang - Landau algorithm

    Science.gov (United States)

    Kalyan, M. Suman; Murthy, K. P. N.; Sastry, V. S. S.

    2016-05-01

    We introduce a simple method to compute free energy differences employing Jarzynski identity in conjunction with Wang - Landau algorithm. We demonstrate this method on Ising spin system by comparing the results with those obtained from canonical sampling.

  3. [Study of dates of birth and death of WANG Tao].

    Science.gov (United States)

    Song, Zhen-Min

    2011-03-01

    The dates of birth and death of WANG Tao, a famous doctor in Tang dynasty, are not found in literature and scholars have different points upon this subject. It could be sure that WANG Tao was appointed mayor of Huayuan county in the ninth year of Kaiyuan period (721) and in December of the fourteenth year of Tianbao period (756) he the revolt in Hejian. The recording after 756 could not be found in literature. According to the official system in Tang dynasty that officers retired at their age of 70, it could be sure that WANG Tao was less than 70 year old in 756. Considering his age when he was the county mayor in 721, it could be speculated that WANG Tao was born during the third year of Chuigong period (687) to the second year of Changshou period (693), and his death date should be some date after 756. But it couldn't be validated.

  4. A Brief Biography of Prof. Yun-chang Wang (1906-)

    Institute of Scientific and Technical Information of China (English)

    ZHUANG Jian-yun; WEI Shu-xia; 宋银秋

    2006-01-01

    @@ Yun-chang Wang, a Chinese mycologist and pathologist, was born in Neihuang county of Henan province. After his graduation from Agricultural College of Peiping University, he became an assistant researcher in Botany Institute of Peiping Institute.

  5. The role of Wang-Landau sampling in materials development

    Science.gov (United States)

    Landau, David

    2012-02-01

    An understanding of the thermodynamic behavior of materials as well as the prediction of the properties of ``materials by design'' often depends upon knowledge of the free energy of the system under study. Computer simulations offer a powerful tool for such investigations, but traditional methods often suffer from long time scales and metastable states due to the roughness of the free energy landscape. Wang-Landau samplingootnotetextF. Wang and D. P. Landau, Phys. Rev. Lett. 86, 2050 (2001); F. Wang and D. P. Landau, Phys. Rev. E 64, 05610 (2001). is a powerful alternative to traditional Monte Carlo algorithms which can alleviate many such problems. We will review the Wang-Landau algorithm and discuss various implementations as well as possible application to materials development.

  6. Avoiding boundary effects in Wang-Landau sampling

    Science.gov (United States)

    Schulz, B. J.; Binder, K.; Müller, M.; Landau, D. P.

    2003-06-01

    A simple modification of the “Wang-Landau sampling” algorithm removes the systematic error that occurs at the boundary of the range of energy over which the random walk takes place in the original algorithm.

  7. Sun and Sun Worship in Different Cultures

    Science.gov (United States)

    Farmanyan, S. V.; Mickaelian, A. M.

    2014-10-01

    The Sun symbol is found in many cultures throughout history, it has played an important role in shaping our life on Earth since the dawn of time. Since the beginning of human existence, civilisations have established religious beliefs that involved the Sun's significance to some extent. As new civilisations and religions developed, many spiritual beliefs were based on those from the past so that there has been an evolution of the Sun's significance throughout cultural development. For comparing and finding the origin of the Sun we made a table of 66 languages and compared the roots of the words. For finding out from where these roots came from, we also made a table of 21 Sun Gods and Goddesses and proved the direct crossing of language and mythology.

  8. [Analysis of twenty trace elements in ling zhi by ICP-AES].

    Science.gov (United States)

    He, Jin-zhe; Kui, Xiao-yun; Yang, Kai; Shao, Pin; Sun, Pei-long

    2009-05-01

    Twenty trace elements, Al, As, Ca, Cd, Co, Cr, Cu, Fe, Ge, Hg, K, Mg, Mn, Na, Ni, P, Pb, S, Se and Zn were determined by ICP--AES with wet digestion from two kinds of different ling zhi fruitbody materials (Zhongzhi and Xianyuan), Ling Zhi root, ling zhi mixture, unbroken and broken ling zhi spore powder. The common feature about the element content showed that there were rich trace elements in different Ling Zhi materials, and the concentrations of K, Ca, Mg, Fe, Zn, P and S in all kinds of ling zhi samples were relatively high. Besides, there were trace elements, Cu, Co, Grand Ni, and potentially physiologically toxic elements, Al, As, Hg, Pb and Cd, in all samples. Elements Se and Ge with anticancer efficacy were not found in ling zhi samples. The concentrations of heavy metal elements were lower in spore powders than in other ling zhi samples. Trace element contents in the broken and unbroken spore powders showed minor difference, The concentrations of Fe and Se in ling zhi mixtures were obviously higher than in other kinds of Ling Zhi samples, due to factitious addition of these elements to Ling Zhi mixture sample. There was some difference between two kinds of Ling Zhi fruitbody from deferent plant places, which may have some relations with the soil and environment. The concentrations of Ca, Cu and Zn in ling zhi root were higher than in other ling zhi materials. According to the analyses, these elements in ling zhi were helpful to improving cardiovascular function.

  9. Massively parallel Wang-Landau sampling on multiple GPUs

    Science.gov (United States)

    Yin, Junqi; Landau, D. P.

    2012-08-01

    Wang-Landau sampling is implemented on the Graphics Processing Unit (GPU) with the Compute Unified Device Architecture (CUDA). Performances on three different GPU cards, including the new generation Fermi architecture card, are compared with that on a Central Processing Unit (CPU). The parameters for massively parallel Wang-Landau sampling are tuned in order to achieve fast convergence. For simulations of the water cluster systems, we obtain an average of over 50 times speedup for a given workload.

  10. Conferencia sobre recursos lingüísticos

    OpenAIRE

    Lorente, Mercè

    2016-01-01

    Muestra de los distintos recursos utilizados en las distintas teorías lingüísticas, diferenciando entre teorías, modelos y mecanismos. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.

  11. ling af isolationsmodstand i el-installationer

    DEFF Research Database (Denmark)

    Holmstrøm, P.; Skibstrup Eriksen, S.

    Anvisningen indeholder en kort gennemgang af stærkstrømsreglementets krav om måling af isolationsmodstand og krav til isolationsprøveapparater. Der bringes eksempler på målinger i praksis, og det fremhæves at elektrikere kan have stor nytte af systematiske målinger i fejlfindingssituationer....

  12. Vejledning i måling af termisk indeklima

    DEFF Research Database (Denmark)

    Valbjørn, O.; Erikson, B.; Löfstedt, B.

    Vejledningen, der er vedtaget af den nordiske ventilationsgruppe januar 1975, er udarbejdet som hjælp ved udførelse af indeklimamålinger i henhold til "Fællesnordiske retningslinier for måling af de termiske indeklimaparametre", SBI notat 47. Vejledningen indeholder følgende afsnit: Målemetoder o...

  13. Sun's rap song

    Science.gov (United States)

    Hogan, M.; Lee, W.

    1995-07-01

    We present a rap song composed for the Sun, our star. This Sun's Rap Song can be utilized in classroom teaching to spark the students' interest and facilitate the students' learning of the relevant subjects.

  14. MedSun Reports

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Medical Product Safety Network (MedSun) is an adverse event reporting program launched in 2002. The primary goal for MedSun is to work collaboratively with the...

  15. MedSun Reports

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Medical Product Safety Network (MedSun) is an adverse event reporting program launched in 2002. The primary goal for MedSun is to work collaboratively with the...

  16. [Per Henrik Ling and his impact on gymnastics].

    Science.gov (United States)

    Brodin, Harald

    2008-01-01

    Per Henrik Ling (1676-1839) is one of the most wellknown Swedes of all times. He studied different subjects and became a fencing-master. After studies of the antique Greece and, above all, after being informed of the German physical functional training, he created the Swedish gymnastics, in part according to antique model. In 1813 he founded the Gymnastic Central Institute in Stockholm with the obligation to educate gymnastic teachers for military and school needs. He was a versatile person, lively, sensitive, original and choleric with intense manners, excellent judgement and an extraordinary pedagogic capability. Therefore, a great deal of attention was paid to his work. However, he was also called eccentric, overstrung, touchy and stubborn. Ling had a high work capacity, but it deteriorated little by little during his last two decades. Obviously, the cause was his lingering joint pains (rheumatoid arthritis?), which impeded his physical activities, but above all his fatal lung tuberculosis. His reports on gymnastic subjects are remarcably few. Ling was also a prolific author of pure literature. He was appointed professor in 1825, fellow of the Swedish Medical Society in 1831 and member of the Swedish Academy in 1835. The gymnastics had four categories: pedagogic, military, medical and aesthetic. All movements should be performed correctly under a leader's direction. Free standing exercises in group were introduced and they were advantageous pedagogically as well as practically over the earlier predominant training. The medical gymnastics played an important, later even dominant, role in Ling's daily work but he could interest only a few physicians in his sphere. After Ling's death the medical gymnastics was exposed to a strong and entitled critique and little by little it became modernized. Also his pedagogic gymnastics was scrutinized and successively modified, and it can still be traced in some modern programs of physical training.

  17. Seasons by the Sun

    Science.gov (United States)

    Stark, Meri-Lyn

    2005-01-01

    Understanding the Sun has challenged people since ancient times. Mythology from the Greek, Inuit, and Inca cultures attempted to explain the daily appearance and nightly disappearance of the Sun by relating it to a chariot being chased across the sky. While people no longer believe the Sun is a chariot racing across the sky, teachers are still…

  18. Personal, Seasonal Suns

    Science.gov (United States)

    Sutley, Jane

    2010-01-01

    This article presents an art project designed for upper-elementary students to (1) imagine visual differences in the sun's appearance during the four seasons; (2) develop ideas for visually translating their personal experiences regarding the seasons to their sun drawings; (3) create four distinctive seasonal suns using colors and imagery to…

  19. La recerca lingüística en la TA

    OpenAIRE

    Melero i Nogués, Maite

    2006-01-01

    La recerca lingüística pot contribuir molt al desenvolupament de la Traducció Automàtica, i al problema fonamental de les divergències en la traducció, amb observacions de fenòmens, amb tècniques i teories que la recerca en TA pot adoptar i combinar amb mètodes estadístics d’anàlisi de corpus. La investigación lingüística puede contribuir mucho al desarrollo de la Traducción Automática, y al problema fundamental de las divergencias en la traducción, con observaciones de fenómenos, con técn...

  20. Um paradigma para a lingüística funcional

    Directory of Open Access Journals (Sweden)

    Sebastião Votre

    2001-02-01

    Full Text Available

    Neste trabalho adoto uma versão moderada do funcionalismo lingüístico na qual aceito a autonomia parcial da sintaxe em relação aos componentes semânticos e pragmáticos da gramática. São enfatizados a gramaticalização e a desgramaticalização dos itens lexicais e das construções.

  1. Ms Wong Pak Ling Expects "Equality, Development and Peace"

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    WONG Pak Ling and her husband Mr. Tan Giok Sie established their own company by their own efforts twenty years ago. She is now deputy managing director of the board of Fan In Trading Company Ltd. and President of Fan In Handicrafts Company Ltd. She is a noticeable woman entrepreneur in Hong Kong business circle. Because she will take part in the NGO forum of the Fourth World Conference on Women, the journalist interviewed her.

  2. Convergence and refinement of the Wang Landau algorithm

    Science.gov (United States)

    Lee, Hwee Kuan; Okabe, Yutaka; Landau, D. P.

    2006-07-01

    Recently, Wang and Landau proposed a new random walk algorithm that can be very efficiently applied to many problems. Subsequently, there has been numerous studies on the algorithm itself and many proposals for improvements were put forward. However, fundamental questions such as what determines the rate of convergence has not been answered. To understand the mechanism behind the Wang-Landau method, we did an error analysis and found that a steady state is reached where the fluctuations in the accumulated energy histogram saturate at values proportional to [. This value is closely related to the error corrections to the Wang-Landau method. We also study the rate of convergence using different "tuning" parameters in the algorithm.

  3. Three-Dimensional MHD Modeling of The Solar Corona and Solar Wind: Comparison with The Wang-Sheeley Model

    Science.gov (United States)

    Usmanov, A. V.; Goldstein, M. L.

    2003-01-01

    We present simulation results from a tilted-dipole steady-state MHD model of the solar corona and solar wind and compare the output from our model with the Wang-Sheeley model which relates the divergence rate of magnetic flux tubes near the Sun (inferred from solar magnetograms) to the solar wind speed observed near Earth and at Ulysses. The boundary conditions in our model specified at the coronal base and our simulation region extends out to 10 AU. We assumed that a flux of Alfven waves with amplitude of 35 km per second emanates from the Sun and provides additional heating and acceleration for the coronal outflow in the open field regions. The waves are treated in the WKB approximation. The incorporation of wave acceleration allows us to reproduce the fast wind measurements obtained by Ulysses, while preserving reasonable agreement with plasma densities typically found at the coronal base. We find that our simulation results agree well with Wang and Sheeley's empirical model.

  4. Scholar in the Chamber:A Study of Wang Duan (1793-1839) and Her Family%才女汪端(1793-1839)及其家人之生平考述∗

    Institute of Scientific and Technical Information of China (English)

    盧志虹

    2012-01-01

    Wang Duan (汪端) , one of the most erudite women in traditional China, re-ceived appreciation and recognition because of her exceptional scholarly achievement among talented women during the Ming-Qing period. This article studies her biogra-phy in detail and in depth from a chronological framework, with emphasis given to her interaction with key members of the families of her parents and her husband. The life experiences of Wang Duan and these relatives are brought to reveal the social and cul-tural atmosphere of the mid-Qing period. In the early 19 th century, when social order and discipline in China showed signs of gradual disintegration, frustrated literati struggled for self-esteem and looked for al-ternative ladder of success to make a living. They also seemed to be open-minded and flexible when dealing with female talents. In the meantime, writing by female authors became abundant in the Jiangnan region, and the circles of appreciation also expand-ed. Wang Duan was born into a prestigious family in Hangzhou. The history of her family distinguishes itself in its reputed private library. Despite the family’s low-pro-file in the political sphere, it was able to form marriage alliance with a native Grand Secretary’s family. Wang Duan was the descendant of this alliance and she benefited from the cultural status of both families in the region. Her won family’s misfortune, on the other hand, warmed the relationship of father and children as well as that of sib-lings. The misfortune also invited special concerns to Wang Duan from senior relatives who were notables even holding no government offices. They nurtured her in her intel-lectual judgment and courage. This family background, and Wang Duan’s education and experience in her youth, could be seen from the family’s genealogies and her col-lected work of poems and prose, which the present study make full use of. Marriage was always seen as a major obstacle to the intellectual pursuit of talent

  5. WANG Feiyue honored as distinguished scientist by ACM

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Prof. WANG Feiyue, a renowned scholar in intelligent control from the CAS Institute of Automation, has been selected by the New York-based Association for Computing Machinery (ACM) as a distinguished scientist for his contributions to both the practical and theoretical aspects of computing and information technology. Altogether, 13 scientists received the honor across the world in 2007.

  6. Wang Xiaohui’s Perspective on the World

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    IN May of 1997, the Shanghai Art Gallery hosted a retrospective of the photography of Wang Xiaohui, an artist who took up a camera seriously only 10 years ago. It was one of the most successful exhibitions they had ever held. In two days alone, more than 3,000

  7. Professor Wang Jie Met with NSF Assistant Director

    Institute of Scientific and Technical Information of China (English)

    Chen Huai

    2008-01-01

    @@ Prof.Wang Jie,NSFC Vice President,cordially met with Dr.David Lightfoot,Assistant Director of USA National Science Foundation (NSF) responsible for the Directorate for Social,Behavioral and Economic Sciences,on April 21,2008.

  8. Solutions to two problems of G.J.Wang

    Institute of Scientific and Technical Information of China (English)

    ZHAO; Bin

    2001-01-01

    [1]Wang,G.J.,Theory of L-fuzzy Topological Spaces (in Chinese),Xi'an:Shaanxi Normal University Press,1988,1-428.[2]Goguen,J.A.,L-fuzzy sets,Journal of Mathematical Analysis and Applications,1967,18:145-174.[3]Zhang,C.L.,Fuzzy topological spaces,Journal of Mathematical Analysis and Applications,1973,41:478-485.[4]Wang,G.J.,Pointwise topology on completely distributive lattices,Fuzzy Sets and Systems,1989,30:53-62.[5]Wong,C.K.,Fuzzy topology:Product and quotient theorems,Journal of Mathematical Analysis and Applications,1974,45:512-521.[6]Wang,G.J.,Lattice-valued lower semicontinuous functions,Journal of Shaanxi Normal University,1988,16(4):1-7.[7]Wang,G.J.,Products of L-fuzzy topological spaces,Fuzzy Systems and Mathematics,1987,1(1):27-34.

  9. Twisted gauge theories in 3D Walker-Wang models

    CERN Document Server

    Wang, Zitao

    2016-01-01

    Three dimensional gauge theories with a discrete gauge group can emerge from spin models as a gapped topological phase with fractional point excitations (gauge charge) and loop excitations (gauge flux). It is known that 3D gauge theories can be "twisted", in the sense that the gauge flux loops can have nontrivial braiding statistics among themselves and such twisted gauge theories are realized in models discovered by Dijkgraaf and Witten. A different framework to systematically construct three dimensional topological phases was proposed by Walker and Wang and a series of examples have been studied. Can the Walker Wang construction be used to realize the topological order in twisted gauge theories? This is not immediately clear because the Walker-Wang construction is based on a loop condensation picture while the Dijkgraaf-Witten theory is based on a membrane condensation picture. In this paper, we show that the answer to this question is Yes, by presenting an explicit construction of the Walker Wang models wh...

  10. Lección de Lingüística. Consideraciones en torno de Ferdinand De Saussure: asidero de la lingüística actual

    Directory of Open Access Journals (Sweden)

    CÉSAR A. ROMERO FARFÁN

    2014-01-01

    Full Text Available Este artículo es una lección de Lingüística. Parte de citas tomadas del Curso de Lingüística general . En este trabajo se reflexiona y se añade principios estructuralistas que, actualmente, son parte de la ciencia del lenguaje. Pretende ser material de una clase básica de Lingüística. No profundiza en conceptos, pero sí los contextualiza. El estilo es sencillo porque se busca el máximo entendimiento posible por parte de estudiantes universitarios.

  11. Sun-Earth Days

    Science.gov (United States)

    Thieman, J.; Ng, C.; Lewis, E.; Cline, T.

    2010-08-01

    Sun-Earth Day is a well-coordinated series of programs, resources and events under a unique yearly theme highlighting the fundamentals of heliophysics research and missions. A menu of activities, conducted throughout the year, inspire and educate participants. Sun-Earth Day itself can vary in date, but usually is identified by a celebration on or near the spring equinox. Through the Sun-Earth Day framework we have been able to offer a series of coordinated events that promote and highlight the Sun, its connection to Earth and the other planets. Sun-Earth Day events are hosted by educators, museums, amateur astronomers and scientists and occur at schools, community groups, parks, planetaria and science centers around the globe. Sun-Earth Day raises the awareness and knowledge of formal and informal education audiences concerning space weather and heliophysics. By building on the success of Sun-Earth Day yearly celebrations, we seek to affect people of all backgrounds and ages with the wonders of heliophysics science, discovery, and exploration in ways that are both tangible and meaningful to their lives.

  12. Diccionario de Lingüística Moderna

    Directory of Open Access Journals (Sweden)

    Gómez Prieto Ana Cristina

    2001-06-01

    Full Text Available Los autores de esta obra semasiológica emprenden la tarea de describir y explicar la terminología de la lingüística, y en particular los distintos significados asignados a los términos en el marco de los diversos enfoques teóricos desde los cuales se ha abordado el objeto de esta disciplina científica: el lenguaje y su manifestación: la lengua.

     

  13. Sun and Sjogren's Syndrome

    Science.gov (United States)

    Patient Education Sheet The Sun and Sjögren’s Syndrome The SSF thanks Mona Z. Mofid, MD, FAAD, Diplomate, American Board of Dermatology, and Medical Director, American Melanoma Foundation, San Diego, California, ...

  14. Un vistazo a los pilares de la Lingüística Moderna: Saussure, Chomsky Y Van Dijk. Del Estructuralismo a la Lingüística textual

    Directory of Open Access Journals (Sweden)

    JOSELYN CORREDOR TAPIAS

    2007-01-01

    Full Text Available Este artículo pretende dar un vistazo a los postulados básicos del estructuralismo, del generativismo y de la lingüística del texto - con sus principales figuras: Ferdinand de Saussure, Noam Avram Chomsky y Teun Adrian Van Dijk, puesto que estas corrientes se consideran como los grandes paradigmas de la lingüística moderna.

  15. Why Study the Sun?

    Indian Academy of Sciences (India)

    Arvind Bhatnagar

    2006-06-01

    In this presentation we briefly describe the Sun through large number of illustrations and pictures of the Sun taken from early times to the present day space missions. The importance of the study of the Sun is emphasized as it is the nearest star which presents unparallelled views of surface details and numerous phenomena. Our Sun offers a unique celestial laboratory where a large variety of phenomena take place, ranging in temporal domain from a few milliseconds to several decades, in spatial domain from a few hundred kilometers to thousands of kilometers, and in the temperature domain from a few thousand degrees to several million degrees. Its mass motion ranges from thousandths to thousands of kilometers per second. Such an object provides us with a unique laboratory to study the state of matter in the Universe. The existing solar ground-based and space missions have already revealed several mysteries of the outer environment of our Sun and much more is going to come in the near future from planned new sophisticated ground-based solar telescopes and Space missions. The new technique of helioseismology has unravelled many secrets of the solar interior and has put the Standard Solar Model (SSM) on firm footing. The long-standing problem of solar neutrinos has been recently sorted out, and even the ‘back side’ view of the Sun can be seen using the technique of holographic helioseismology.

  16. The Sun and Earth

    Science.gov (United States)

    Gopalswamy, Natchimuthuk

    2012-01-01

    Thus the Sun forms the basis for life on Earth via the black body radiation it emits. The Sun also emits mass in the form of the solar wind and the coronal mass ejections (CMEs). Mass emission also occurs in the form of solar energetic particles (SEPs), which happens during CMEs and solar flares. Both the mass and electromagnetic energy output of the Sun vary over a wide range of time scales, thus introducing disturbances on the space environment that extends from the Sun through the entire heliosphere including the magnetospheres and ionospheres of planets and moons of the solar system. Although our habitat is located in the neutral atmosphere of Earth, we are intimately connected to the non-neutral space environment starting from the ionosphere to the magnetosphere and to the vast interplanetary space. The variability of the solar mass emissions results in the interaction between the solar wind plasma and the magnetospheric plasma leading to huge disturbances in the geospace. The Sun ionizes our atmosphere and creates the ionosphere. The ionosphere can be severely disturbed by the transient energy input from solar flares and the solar wind during geomagnetic storms. The complex interplay between Earth's magnetic field and the solar magnetic field carried by the solar wind presents varying conditions that are both beneficial and hazardous to life on earth. This seminar presents some of the key aspects of this Sun-Earth connection that we have learned since the birth of space science as a scientific discipline some half a century ago.

  17. Generic, hierarchical framework for massively parallel Wang-Landau sampling.

    Science.gov (United States)

    Vogel, Thomas; Li, Ying Wai; Wüst, Thomas; Landau, David P

    2013-05-24

    We introduce a parallel Wang-Landau method based on the replica-exchange framework for Monte Carlo simulations. To demonstrate its advantages and general applicability for simulations of complex systems, we apply it to different spin models including spin glasses, the Ising model, and the Potts model, lattice protein adsorption, and the self-assembly process in amphiphilic solutions. Without loss of accuracy, the method gives significant speed-up and potentially scales up to petaflop machines.

  18. Generic, Hierarchical Framework for Massively Parallel Wang-Landau Sampling

    Science.gov (United States)

    Vogel, Thomas; Li, Ying Wai; Wüst, Thomas; Landau, David P.

    2013-05-01

    We introduce a parallel Wang-Landau method based on the replica-exchange framework for Monte Carlo simulations. To demonstrate its advantages and general applicability for simulations of complex systems, we apply it to different spin models including spin glasses, the Ising model, and the Potts model, lattice protein adsorption, and the self-assembly process in amphiphilic solutions. Without loss of accuracy, the method gives significant speed-up and potentially scales up to petaflop machines.

  19. A generic, hierarchical framework for massively parallel Wang Landau sampling

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, Thomas [University of Georgia, Athens, GA; Li, Ying Wai [ORNL; Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Landau, David P [University of Georgia, Athens, GA

    2013-01-01

    We introduce a parallel Wang Landau method based on the replica-exchange framework for Monte Carlo simulations. To demonstrate its advantages and general applicability for simulations of com- plex systems, we apply it to the self-assembly process in amphiphilic solutions and to lattice protein adsorption. Without loss of accuracy, the method gives significant speed-up on small architectures like multi-core processors, and should be beneficial for petaflop machines.

  20. Las proyecciones de la lingüística

    Directory of Open Access Journals (Sweden)

    Tobón de Castro Lucia

    1989-07-01

    Full Text Available

    A menudo se nos pregunta qué es la ciencia, qué fenómenos deben tener lugar o que condiciones deben cumplirse para que una determinada disciplina logre la dimensión de ciencia.  Tratare de responder a estos interrogantes, dentro del campo particular de la ciencia del lenguaje. Cuando quiera que alguien se aproxime al proceso de desarrollo de la lingüística, lo encara como un hecho histórico, como el inventario de los aportes de figuras descollantes ligadas por la sucesión en el tiempo. En

    este ensayo quiero proponer como tesis que la lingüística, como toda ciencia, es una construcción de la mente humana, una creación de la humanidad y es en esa dimensión como debemos estudiar su proceso evolutivo. Por esto he seleccionado como tema las proyecciones de la lingüística dando al término proyección dos sentidos: el primero; representa los hitos que han hecho de la lingüística un proceso científico y, el segundo, las etapas que aún debe cumplir para ser a cabalidad la ciencia

    del lenguaje.  Consecuente con el

  1. Lessons from the Sun

    Directory of Open Access Journals (Sweden)

    Robitaille P.-M.

    2011-07-01

    Full Text Available In this brief note, the implications of a condensed Sun will be examined. A celestial body composed of liquid metallic hydrogen brings great promise to astronomy, relative to understanding thermal emission and solar structure. At the same time, as an incom- pressible liquid, a condensed Sun calls into question virtually everything which is cur- rently believed with respect to the evolution and nature of the stars. Should the Sun be condensed, then neutron stars and white dwarfs will fail to reach the enormous densities they are currently believed to possess. Much of cosmology also falls into question, as the incompressibility of matter curtails any thought that a primordial atom once existed. Aging stars can no longer collapse and black holes will know no formative mechanism. A condensed Sun also hints that great strides must still be made in understanding the nature of liquids. The Sun has revealed that liquids possess a much greater potential for lattice order than previously believed. In addition, lessons may be gained with regards to the synthesis of liquid metallic hydrogen and the use of condensed matter as the basis for initiating fusion on Earth.

  2. Actitudes lingüísticas en Colombia

    Directory of Open Access Journals (Sweden)

    Julio Bernal

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de Bogotá, hacia al español de Colombia y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigaciones (NRC. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 personas, estratificada con las variables de edad, sexo y nivel socioeconómico. Los resultados muestran que el habla de la capital cuenta con alto prestigio entre los bogotanos, en comparación con menor estima por las hablas de la costa del Caribe y la región nariñense, al sur del país; asimismo sienten una alta autoestima lingüística, ya que consideran el habla colombiana como parte esencial de la identidad nacional y poseedora de una corrección lingüística que supera la del español hablado en España, México y la Argentina. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from Bogotá, towards Spanish spoken in Colombia and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Norwegian Research Council (NRC. The data were gathered in the capital of the country, interviewing a stratified sample of 400 persons, based on the variables of age, sex and socioeconomic status. The results of the project show that Spanish spoken in the capital has higher prestige than Spanish spoken on the Caribbean coast and in Nariño, the southern region of the country; the respondents show high linguistic self-esteem for Colombian Spanish, which they consider an essential part of their national identity, the linguistic correctness of which goes beyond that of Spanish spoken in Spain, Mexico and Argentina.

  3. Magnetohydrodynamics of the sun

    CERN Document Server

    Priest, Eric

    2014-01-01

    Magnetohydrodynamics of the Sun is a completely new up-to-date rewrite from scratch of the 1982 book Solar Magnetohydrodynamics, taking account of enormous advances in understanding since that date. It describes the subtle and complex interaction between the Sun's plasma atmosphere and its magnetic field, which is responsible for many fascinating dynamic phenomena. Chapters cover the generation of the Sun's magnetic field by dynamo action, magnetoconvection and the nature of photospheric flux tubes such as sunspots, the heating of the outer atmosphere by waves or reconnection, the structure of prominences, the nature of eruptive instability and magnetic reconnection in solar flares and coronal mass ejections, and the acceleration of the solar wind by reconnection or wave-turbulence. It is essential reading for graduate students and researchers in solar physics and related fields of astronomy, plasma physics and fluid dynamics. Problem sets and other resources are available at www.cambridge.org/9780521854719.

  4. The Sun's Supergranulation

    CERN Document Server

    Rieutord, Michel

    2010-01-01

    The Sun's supergranulation refers to a physical pattern covering the surface of the quiet Sun with a typical horizontal scale of approximately 30000km. Its most noticeable observable signature is as a fluctuating velocity field whose components are mostly horizontal. Supergranulation was discovered more than fifty years ago, however explaining why and how it originates still represents one of the main challenges of modern solar physics. A lot of work has been devoted to the subject over the years, but observational constraints, conceptual difficulties and numerical limitations have all concurred to prevent a detailed understanding of the supergranulation phenomenon so far. With the advent of 21st century supercomputing resources and the availability of unprecedented high-resolution observations of the Sun, the solar community has now reached a stage at which key progress can be made on this question. A unifying strategy between observations and modeling is more than ever required for this to be possible. The ...

  5. Sun, Earth and Sky

    Science.gov (United States)

    Lang, Kenneth R.

    1995-01-01

    The Sun is enveloped by a hot, tenuous million-degree corona that expands to create a continuous solar wind that sweeps past all the planets and fills the heliosphere. The solar wind is modulated by strong gusts that are initiated by powerful explosions on the Sun, including solar flares and coronal mass ejections. This dynamic, invisible outer atmosphere of the Sun is currently under observation with the soft X-ray telescope aboard the Yohkoh spacecraft, whose results are presented. We also show observations from the Ulysses spacecraft that is now passing over the solar pole, sampling the solar wind in this region for the first time. Two other spacecraft, Voyager 1 and 2, have recently detected the outer edge of the invisible heliosphere, roughly halfway to the nearest star. Magnetic solar activity, the total radiative output from the Sun, and the Earth's mean global surface temperature all vary with the 11-year sunspot cycle in which the total number of sunspots varies from a maximum to a minimum and back to a maximum again in about 11 years. The terrestrial magnetic field hollows out a protective magnetic cavity, called the magnetosphere, within the solar wind. This protection is incomplete, however, so the Sun feeds an unseen world of high-speed particles and magnetic fields that encircle the Earth in space. These particles endanger spacecraft and astronauts, and also produce terrestrial aurorae. An international flotilla of spacecraft is now sampling the weak points in this magnetic defense. Similar spacecraft have also discovered a new radiation belt, in addition to the familiar Van Allen belts, except fed by interstellar ions instead of electrons and protons from the Sun.

  6. Piece of the sun

    CERN Document Server

    Wayne, Teddy

    2015-01-01

    Our rapidly industrialising world has an insatiable hunger for energy, and conventional sources are struggling to meet demand. Oil is running out, coal is damaging our climate, many nations are abandoning nuclear, yet solar, wind and water will never be a complete replacement. The solution, says Daniel Clery in this deeply researched and revelatory book, is to be found in the original energy source: the Sun itself. There, at its centre, the fusion of 630 million tonnes of hydrogen every second generates an unfathomable amount of energy. By replicating even a tiny piece of the Sun's power

  7. Near-Sun asteroids

    Science.gov (United States)

    Emel'yanenko, V. V.

    2017-01-01

    As follows from dynamical studies, in the course of evolution, most near-Earth objects reach orbits with small perihelion distances. Changes of the asteroids in the vicinity of the Sun should play a key role in forming the physical properties, size distribution, and dynamical features of the near-Earth objects. Only seven of the discovered asteroids are currently moving along orbits with perihelion distances q orbits farther from the Sun. In this study, we found asteroids that have been recently orbiting with perihelion distances q orbits for hundreds to tens of thousands of years. To carry out astrophysical observations of such objects is a high priority.

  8. The SUN S TRAVELS

    Institute of Scientific and Technical Information of China (English)

    Robert; Louis; Stevenson

    2005-01-01

    The sun is not a-bed, when I At night upon my pillow lie; Stilt round the earth his Way he takes, And morning after morning makes. White here at home, in shining day, We round the sunny garden play, Each tittle Indian sleepy - head Is being kissed and put to bed. And When at eve I rise from tea, Day dawns beyond the Atlantic Sea; And all the children in the West Are getting up and being dressed.The SUN'S TRAVELS@Robert Louis Stevenson

  9. «王乃誉日记»有关少年王国维略述%Descriptions about Teenager Wang Guowei in Wang Naiyu Diary

    Institute of Scientific and Technical Information of China (English)

    张镇西

    2015-01-01

    The paper compiled all details about Wang Guowei in Wang Naiyu Diary ,from family status and major family events,Wang Naiyu’s interests and teachings,to Wang Guowei’s academic partners and teen-ager playmates,thus analyzed academic and ideological formation process of teenager Wang Guowei.%对«王乃誉日记»中涉及王国维少年事情的内容进行综合整理,从家境状况与主要家庭活动、王乃誉的喜好擅长与言传身教、王国维的兴趣学业与少年伙伴三个角度,剖析了王国维少年时期学业及思想形成的过程。

  10. Maximising the sun

    CSIR Research Space (South Africa)

    Conradie, Dirk CU

    2010-08-01

    Full Text Available South Africa is blessed with some of the best quality solar radiation in the world. In the light of this many exciting opportunities exist to utilize the sun to its full potential in the design of energy efficient buildings. Passive solar buildings...

  11. Sun Ultra 5

    CERN Multimedia

    1998-01-01

    The Sun Ultra 5 is a 64-bit personal computer based on the UltraSPARC microprocessor line at a low price. The Ultra 5 has been declined in several variants: thus, some models have a processor with less cache memory to further decrease the price of the computer.

  12. The Toboggan Sun

    NARCIS (Netherlands)

    Davidson, WPS; van der Werf, SY

    2005-01-01

    Special variants of the Novaya Zemlya effect may arise from localized temperature inversions that follow the height profile of hills or mountains. Rather than following its natural path, the rising or setting Sun may, under such circumstances, appear to slide along a distant mountain slope. We found

  13. Go Sun Smart

    Science.gov (United States)

    Scott, Michael D.; Buller, David B.; Walkosz, Barbara J.; Andersen, Peter A.; Cutter, Gary R.; Dignan, Mark B.

    2008-01-01

    This is the story of Go Sun Smart, a worksite wellness program endorsed by the North American Ski Area Association and funded by the National Cancer Institute. Between 2000 and 2002 we designed and implemented a large-scale worksite intervention at over 300 ski resorts in North America with the objective of reducing ski area employees and guests…

  14. Sun, Earth and Sky

    CERN Document Server

    Lang, Kenneth R

    2006-01-01

    This Second Edition of Sun, Earth and Sky updates the popular text by providing comprehensive accounts of the most recent discoveries made by five modern solar spacecraft during the past decade. Their instruments have used sound waves to peer deep into the Sun’s inner regions and measure the temperature of its central nuclear reactor, and extended our gaze far from the visible Sun to record energetic outbursts that threaten Earth. Breakthrough observations with the underground Sudbury Neutrino Observatory are also included, which explain the new physics of ghostly neutrinos and solve the problematic mismatch between the predicted and observed amounts of solar neutrinos. This new edition of Sun, Earth and Sky also describes our recent understanding of how the Sun’s outer atmosphere is heated to a million degrees, and just where the Sun’s continuous winds come from. As humans we are more intimately linked with our life-sustaining Sun than with any other astronomical object, and the new edition therefore p...

  15. Our Explosive Sun

    Science.gov (United States)

    Brown, D. S.

    2009-01-01

    The Sun's atmosphere is a highly structured but dynamic place, dominated by the solar magnetic field. Hot charged gas (plasma) is trapped on lines of magnetic force that can snap like an elastic band, propelling giant clouds of material out into space. A range of ground-based and space-based solar telescopes observe these eruptions, particularly…

  16. Swendsen-Wang is faster than single-bond dynamics

    CERN Document Server

    Ullrich, Mario

    2012-01-01

    We prove that the spectral gap of the Swendsen-Wang dynamics for the random-cluster model is larger than the spectral gap of a single-bond dynamics, that updates only a single edge per step. For this we give a representation of the algorithms on the joint (Potts/random-cluster) model. Furthermore we obtain upper and lower bounds on the mixing time of the single-bond dynamics on the discrete d-dimensional torus of side length L at the Potts transition temperature for $q$ large enough that are exponential in L^{d-1}, complementing a result of Borgs, Chayes and Tetali.

  17. Freud in China: An Interview with Wang Ning

    Institute of Scientific and Technical Information of China (English)

    Evan Osnos

    2011-01-01

    0 (Abbreviation of Osnos) : How did you become focused on Freud? W (Abbreviation of Wang Ning) : I found that many of the American writers were greatly influenced by psychoanalysis, especially by Freud. So I took some time reading some of the books written by Freud, such as Introductory Lectures on Psychoanalysis, New Introductory Lectures on Psychoanalysis, Beyond the Pleasure Principles and An Autobiographi- cal Study. And in 1983, I attended a conference, a national conference on psychoanalysis in Nanjing and submitted a paper on Freudian influence on modern and contemporary Western literature.

  18. Wang-Landau Simulations of Adsorbed and Confined Lattice Proteins

    Science.gov (United States)

    Pattanasiri, Busara; Li, Ying Wai; Landau, David P.; Wüst, Thomas

    2012-08-01

    The hydrophobic-polar (HP) model has emerged as one of the standard approaches for simulating protein folding. In this work, we used this model together with Wang-Landau (WL) sampling and appropriate Monte Carlo trial moves to determine the density of states and thermodynamics for two cases: Protein adsorption and protein confinement, in the vicinity of attractive surfaces. The influence on the adsorption behavior of surface attractive strength in the adsorption case and volumetric spaces in the confinement case will be discussed.

  19. [Clearing the doubts of all Wang Bing in the Tang dynasty].

    Science.gov (United States)

    Qiao, H; Qiao, Y; Li, H

    1999-10-01

    The problem is probed on the clues provided by Si ku ti yao zheng (Analysis on Summary of Books in Four Parts). It is claimed that the Wang bing (*) recommended by Wei Kang and that recommended by Yuwen Rong in Yu Jiaxi's work refer to the same person, both are identical to the time of the author of Su wen. Further, the time of the above 2 Wang Bing(s) and the Wang Bing recorded in lie nu zhuan (Biongraphies of chaste women) as the son of Wang Lin, are also overlapped with the time of the author of Su wen. It is possible that they are the same person. However, the details of the Wang Bing mentioned in Lang guan shi zhu ti ming (inscription for Lang guan Stone Pillar) is unknown. Again, it is unlikely that the Wang Bing (*) is the author of Su wen and can be only a farfetched analogy drawn after Su Fu's poet.

  20. Stars resembling the Sun

    Science.gov (United States)

    Cayrel de Strobel, G.

    This review is primarily directed to the question whether photometric solar analogues remain such when subjected to detailed spectroscopic analyses and interpreted with the help of internal stucture models. In other words, whether the physical parameters: mass, chemical composition, age (determining effective temperature and luminosity), chromospheric activity, equatorial rotation, lithium abundance, velocity fields etc., we derive from the spectral analysis of a photometric solar analogue, are really close to those of the Sun. We start from 109 photometric solar analogues extracted from different authors. The stars selected had to satisfy three conditions: i) their colour index (B-V) must be contained in the interval: Δ (B-V) = 0.59-0.69, ii) they must possess a trigonometric parallax, iii) they must have undergone a high resolution detailed spectroscopic analysis. First, this review presents photometric and spectrophotometric researches on solar analogues and recalls the pionneering work on these stars by the late Johannes Hardorp. After a brief discussion on low and high resolution spectroscopic researches, a comparison is made between effective temperatures as obtained, directly, from detailed spectral analyses and those obtained, indirectly, from different photometric relations. An interesting point in this review is the discussion on the tantalilizing value of the (B-V)solar of the Sun, and the presentation of a new reliable value of this index. A short restatement of the kinematic properties of the sample of solar analogues is also made. And, finally, the observational ( T eff, M bol) diagram, obtained with 99 of the initially presented 109 analogues, is compared to a theoretical ( T eff, M bol) diagram. This latter has been constructed with a grid of internal structure models for which, (very important for this investigation), the Sun was used as gauge. In analysing the position, with respect to the Sun, of each star we hoped to find a certain number of

  1. Propuesta para una lingüística del hipertexto o ciberlingüística

    Directory of Open Access Journals (Sweden)

    Roberto Rodríguez John Alexander

    2004-06-01

    Full Text Available

    Gracias a que en la actualidad la idea del lenguaje tal y como era pensado en los comienzos de la lingüística ha evolucionado extraordinariamente para extenderse a otro tipo de manifestaciones menos convencionales, el hipertexto tiene cabida como objeto de la reflexión y de la práctica lingüísticas. El trabajo con hipertextos nos acerca al reto de dotar de una forma adecuada a los contenidos hipertextuales. La navegación, interactividad, escritura, lectura, generación, integración, representación y diseño hipertextual constituyen problemas técnicos abiertos a las prácticas lingüísticas. Todo esto nos hace ver la necesidad de una disciplina que se encargue del estudio y el desarrollo del hipertexto en cuanto unidad lingüística.

  2. Ms HU Ling-xiang's Experience in Treating Blood Stasis by Acupuncture Balancing Method

    Institute of Scientific and Technical Information of China (English)

    FU Jia; LI Ji; ZHANG Cai-rong

    2005-01-01

    @@ HU Ling-xiang, 60, is a chief doctor and supervisor of postgraduates of master degree. She specializes in the syndrome differentiation and treatment of different kinds of chronic and difficult disorders from the perspective of blood stasis theory.

  3. The Application of Survey in ER Wang Temple Restituting

    Science.gov (United States)

    Shuai, W.; Rong, Z.

    2013-07-01

    Er Wang Temple, in World Heritage Site "Dujiang Weirs and Qingchengshan Mountai", was severely destroyed in Wenchuan earthquake of May 2008. There are several problems at different level in every building, such as structural distortion, foundation displacement, wall fracture, roof damage, etc. The stage was completely collapsed in the earthquake. Tableland the stage situated had a huge crack and slope collapse. This article is for the stage renovation. The survey of damage in earthquake is the basis of Er Wang Temple restituting. Survey including field survey after the earthquake and the measurement and investigation for the remained construction member of the main wood structure. For field survey, the basis of pillars which had not have significantly affects in earthquake could be seem as the reference points for measurement. The investigation of remained main wood construction member, especially the size of the key structures and site and manufacture method of the joints, is the important basis for recovery stage. Our team did our utmost to restore the original appearance of stage in design, materials and craft by various tools, which include measured drawings in different times, old images collection, fine measuring by 3D laser scan, measurement of leftover pieces, logical inference.

  4. Wang-Landau sampling: a criterion for halting the simulations.

    Science.gov (United States)

    Caparica, A A

    2014-04-01

    In this work we propose a criterion to finish the simulations of the Wang-Landau sampling. Instead of determining a final modification factor for all simulations and every sample size, we investigate the behavior of the temperature of the peak of the specific heat during the simulations and finish them when this value varies below a given limit. As a result, different runs stop at different final modification factors. We show that in place of the temperature of the peak of the specific heat one can adopt alternatively the integrated heat transfer as a reference quantity. We apply this technique to the two-dimensional Ising model and a homopolymer. We verify that for the Ising model the mean order of the final modification factors is roughly the same for all lattice sizes, but for the homopolymer the order of the final modification factors increases with increasing polymer sizes. The results show that the simulations can be halted much earlier than is conventional in Wang-Landau sampling, but manifold finite-size simulations are required in order to obtain accurate results. A brief application to the three-dimensional Ising model is also available.

  5. Fermented Chinese formula Shuan-Tong-Ling attenuates ischemic stroke by inhibiting inflammation and apoptosis

    Directory of Open Access Journals (Sweden)

    Zhi-gang Mei

    2017-01-01

    Full Text Available The fermented Chinese formula Shuan-Tong-Ling is composed of radix puerariae (Gegen, salvia miltiorrhiza (Danshen, radix curcuma (Jianghuang, hawthorn (Shanzha, salvia chinensis (Shijianchuan, sinapis alba (Baijiezi, astragalus (Huangqi, panax japonicas (Zhujieshen, atractylodes macrocephala koidz (Baizhu, radix paeoniae alba (Baishao, bupleurum (Chaihu, chrysanthemum (Juhua, rhizoma cyperi (Xiangfu and gastrodin (Tianma, whose aqueous extract was fermented with lactobacillus, bacillus aceticus and saccharomycetes. Shuan-Tong-Ling is a formula used to treat brain diseases including ischemic stroke, migraine, and vascular dementia. Shuan-Tong-Ling attenuated H2O2-induced oxidative stress in rat microvascular endothelial cells. However, the potential mechanism involved in these effects is poorly understood. Rats were intragastrically treated with 5.7 or 17.2 mL/kg Shuan-Tong-Ling for 7 days before middle cerebral artery occlusion was induced. The results indicated Shuan-Tong-Ling had a cerebral protective effect by reducing infarct volume and increasing neurological scores. Shuan-Tong-Ling also decreased tumor necrosis factor-α and interleukin-1β levels in the hippocampus on the ischemic side. In addition, Shuan-Tong-Ling upregulated the expression of SIRT1 and Bcl-2 and downregulated the expression of acetylated-protein 53 and Bax. Injection of 5 mg/kg silent information regulator 1 (SIRT1 inhibitor EX527 into the subarachnoid space once every 2 days, four times, reversed the above changes. These results demonstrate that Shuan-Tong-Ling might benefit cerebral ischemia/reperfusion injury by reducing inflammation and apoptosis through activation of the SIRT1 signaling pathway.

  6. Lingüística general y aplicada (2008/09)

    OpenAIRE

    Gallardo-Paúls, Beatriz

    2008-01-01

    Introducción a los conceptos básicos de la lingüística clínica. Categorías lingüísticas de relevancia en el estudio de las patologías del lenguaje: fonología, morfosintaxis, semántica y pragmática. Asignatura Troncal de Logopedia. Primer ciclo. Primer curso. Cuatrimestral: 6 créditos.

  7. Componentes y factores del desempeño lingüístico /

    OpenAIRE

    Ebergenyi Magaloni, María Ileana

    2011-01-01

     tesis que para obtener el grado de Doctor en Lingüística, presenta María Ileana Ebergenyi Magaloni ; asesor Fernando Castaños Zuno, Mary Elein Meagher, Carmen Curcó. 512, [218] páginas : ilustraciones. Doctorado en Lingüística UNAM, Facultad de Filosofía y Letras, 2011

  8. Placering af trykmåler til bølgemåling

    DEFF Research Database (Denmark)

    Kramer, Morten; Kofoed, Jens Peter

    I nærværende rapport arbejdes der med indflydelsen af placering af trykmåleren til opmåling af bølger ved Wave Dragon, Nissum Bredning.......I nærværende rapport arbejdes der med indflydelsen af placering af trykmåleren til opmåling af bølger ved Wave Dragon, Nissum Bredning....

  9. SCIENCE OF SUN PHOTOMETRY

    Directory of Open Access Journals (Sweden)

    Alexandru Dan Toma

    2013-07-01

    Full Text Available Typically, the total amount of gases and particles in a column of atmosphere cannot be determined from measurements just at Earth's surface, by a single measurement essentially at the bottom of the atmosphere column. Balloons, airplanes, and rockets are all used to perform direct measurements in the atmosphere at altitudes up to and beyond the stratosphere. Satellite-based instruments provide global views, but it is difficult to infer surface and column distributions from space-based measurements, so such measurements must still be supplemented by ground-based measurements. Sun photometry is an important way of probing the atmosphere from the ground to measure the effects of the atmosphere on Sun radiation crossing through the atmosphere to Earth's surface. These indirect technique provide information about the entire atmosphere above the observer, not just the atmosphere that can be sampled directly close to Earth's surface.

  10. Tesis sobre la lingüística del hablar

    Directory of Open Access Journals (Sweden)

    Evgenia Vucheva

    2012-11-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} El artículo presenta un programa para la descripción del lenguaje en sus principales dimensiones ontológicas: la designación, el significado y el sentido. Se exponen de forma concisa los tres planos semánticos del hablar (universal, histórico e individual, así como las unidades y categorías que les corresponden. Asimismo se establecen las respectivas delimitaciones teóricas y metodológicas para su estudio sistemático. Nuestro objetivo principal es trazar las pautas hacia la descripción del hablar como actividad humana compleja, como el producto de la interacción de fenómenos cognitivos, lingüísticos y psicosociales. En este sentido, el trabajo es un intento de buscar el programa integral, elaborado sobre una base lingüística, para trazar las posibles vías hacia una concepción coherente del hablar como fenómeno humano singular, de naturaleza pluridimensional, pero al mismo tiempo unitaria. 

  11. Significado musical y significado lingüistico

    Directory of Open Access Journals (Sweden)

    Fernández Rodríguez-Escalona, Guillermo

    2008-12-01

    Full Text Available The present paper deals with the problem of meaning in the field of Music from the perspective of the Theory of Language. In the author’s view, there has been an excessive use of the term “meaning” within the area of Musical Semantics, which may lead not only to a terminological lack of precision but also to a confusion of concepts which are more precise in Linguistics than in Musical Theory. Starting from the analysis of the different trends on the presence of meaning in music, as well as its similarities with the linguistic meaning, the author states that both music and language are abilities for the human being to express himself. Nonetheless, language, through its representative meaning, is able to code the experience a person may have of the world. Even though the semantic representation has nothing to do with the musical expression, the latter shares with language a modal meaning connected with the experience the subject has of himself.

    En este trabajo se aborda el problema del significado de la Música desde la perspectiva de la Teoría del lenguaje. En los estudios de semántica musical se hace un uso abusivo del término significado, lo cual lleva no solamente a imprecisiones terminológicas, sino también a confundir conceptos más matizados en la Lingüistica que en la Teoría musical. Partiendo del examen de distintas posiciones sobre la presencia del significado en la música y sus homologías con el significado lingüistico, se llega a la propuesta de que música y lenguaje forman parte de la capacidad expresiva del hombre, pero se diferencian en que el lenguaje, por medio del significado representativo, codifica la experiencia que el sujeto tiene del mundo. Y aunque la representación semántica es un procedimiento ajeno a la expresión musical, esta comparte con el lenguaje un contenido modal relacionado con la experiencia que el sujeto tiene de sí mismo.

  12. How hot is the sun

    Institute of Scientific and Technical Information of China (English)

    刘超

    2001-01-01

    Do you know how hot thesun is? There are no solidsor liquids on the sun. Why not? The temperature onoutside the sun is more than 10, 000℃, and that at the centre is about 20, 000, 000℃.The sun is so hot that all thesolids and all the liquids havebeen turned into gases.

  13. The sun, our star

    Science.gov (United States)

    Noyes, R. W.

    Observational data, analytical models, and instrumentation used to study the sun and its evolution are detailed, and attention is given to techniques for converting solar energy to useful power on earth. The star ignited when the mutual gravitational attractions of dust and vapor in a primordial cloud in the Galaxy caused an in-rush of accelerating particles which eventually became dense enough to ignite. The heat grew until inward rushing matter was balanced by outward moving radiative forces. The planets formed from similar debris, and solar radiation is suggested to have triggered the chemical reactions giving rise to life on earth. Visual, spectroscopic, coronagraphic, and UV observations of the sun from the ground and from spacecraft, particularly Skylab, are described, together with features of the solar surface, magnetic field, sunspots, and coronal loops. Models for the processes that occur in the solar interior are explored, as are the causes of solar flares. Attention is given to solar cells, heliostat arrays, wind turbines, and water turbines as means to convert, either directly or indirectly, the earth-bound solar energy to electrical and thermal power. Finally, the life cycle of the sun, about 9 billion yr in duration, is summarized, noting the current status of midlife.

  14. Ke Wang, a Chinese television soap opera with a message.

    Science.gov (United States)

    Wang, M; Singhal, A

    1992-01-01

    The Chinese soap opera, Ke Wang, was created by Li Xiaoming between August 1989 and June 1990 and produced at a cost of US$4650 per episode. The characters were drawn from everyday ordinary Chinese life: a traditional and open-minded and caring woman, a typical mother who works hard and loves her children, a highly educated upwardly mobile man who divorces his wife, a professor criticized during the Cultural Revolution, a doctor prejudiced against ordinary people, a kind honest man who marries the divorcee, a friend of the divorcee, a man who is optimistic in spite of bad experiences during the Cultural Revolution, and an excellent medical doctor who also resolves conflicts. The program was very popular, even among Communists, because of its value-based content, the real-life nature of the show, the change from highly restricted programming, the elaborate and supportive media coverage, and dialogue which closely matches audience preferences. The show has been aired by over 100 stations to date and has reached a total estimated audience of 550 million. The sale of television sets has increased since the show's appearance. The script reflects the conflicts between traditional and modern Chinese values. Pro-social values and behaviors are learned from the role models depicted; examples are given of immediate social impact. Ke Wang was a by-product of the Beijing Television Arts Center's interest in designing television programs that are relevant to the lives of ordinary people. The 60-minute scripts dealt with issues such as the status of women, social morality, family harmony, class conflict, responsible parenthood, maintenance of traditional culture, volunteerism, child development, and coping with physical disability. The Chinese government hailed Ke Wang as model television and awarded US$20,000 in prize money to the producers. The Chinese government is planning to produce other entertainment-education soap operas, which raises the problem of blatant, political

  15. Wang-Landau simulation of Gō model molecules.

    Science.gov (United States)

    Böker, Arne; Paul, Wolfgang

    2016-01-01

    Gō-like models are one of the oldest protein modeling concepts in computational physics and have proven their value over and over for forty years. The essence of a Gō model is to define a native contact matrix for a well-defined low-energy polymer configuration, e.g., the native state in the case of proteins or peptides. Many different potential shapes and many different cut-off distances in the definition of this native contact matrix have been proposed and applied. We investigate here the physical consequences of the choice for this cut-off distance in the Gō models derived for a square-well tangent sphere homopolymer chain. For this purpose we are performing flat-histogram Monte Carlo simulations of Wang-Landau type, obtaining the thermodynamic and structural properties of such models over the complete temperature range. Differences and similarities with Gō models for proteins and peptides are discussed.

  16. Improving Wang-Landau sampling with adaptive windows.

    Science.gov (United States)

    Cunha-Netto, A G; Caparica, A A; Tsai, Shan-Ho; Dickman, Ronald; Landau, D P

    2008-11-01

    Wang-Landau sampling (WLS) of large systems requires dividing the energy range into "windows" and joining the results of simulations in each window. The resulting density of states (and associated thermodynamic functions) is shown to suffer from boundary effects in simulations of lattice polymers and the five-state Potts model. Here, we implement WLS using adaptive windows. Instead of defining fixed energy windows (or windows in the energy-magnetization plane for the Potts model), the boundary positions depend on the set of energy values on which the histogram is flat at a given stage of the simulation. Shifting the windows each time the modification factor f is reduced, we eliminate border effects that arise in simulations using fixed windows. Adaptive windows extend significantly the range of system sizes that may be studied reliably using WLS.

  17. Scalable replica-exchange framework for Wang-Landau sampling.

    Science.gov (United States)

    Vogel, Thomas; Li, Ying Wai; Wüst, Thomas; Landau, David P

    2014-08-01

    We investigate a generic, parallel replica-exchange framework for Monte Carlo simulations based on the Wang-Landau method. To demonstrate its advantages and general applicability for massively parallel simulations of complex systems, we apply it to lattice spin models, the self-assembly process in amphiphilic solutions, and the adsorption of molecules on surfaces. While of general current interest, the latter phenomena are challenging to study computationally because of multiple structural transitions occurring over a broad temperature range. We show how the parallel framework facilitates simulations of such processes and, without any loss of accuracy or precision, gives a significant speedup and allows for the study of much larger systems and much wider temperature ranges than possible with single-walker methods.

  18. Scalable replica-exchange framework for Wang-Landau sampling

    Science.gov (United States)

    Vogel, Thomas; Li, Ying Wai; Wüst, Thomas; Landau, David P.

    2014-08-01

    We investigate a generic, parallel replica-exchange framework for Monte Carlo simulations based on the Wang-Landau method. To demonstrate its advantages and general applicability for massively parallel simulations of complex systems, we apply it to lattice spin models, the self-assembly process in amphiphilic solutions, and the adsorption of molecules on surfaces. While of general current interest, the latter phenomena are challenging to study computationally because of multiple structural transitions occurring over a broad temperature range. We show how the parallel framework facilitates simulations of such processes and, without any loss of accuracy or precision, gives a significant speedup and allows for the study of much larger systems and much wider temperature ranges than possible with single-walker methods.

  19. Generic parallel Wang-Landau sampling for complex systems

    Science.gov (United States)

    Li, Ying Wai; Vogel, Thomas; Landau, David P.; Wüst, Thomas

    2013-03-01

    We introduce a parallel realization for Wang-Landau sampling in Monte Carlo simulations based on a replica-exchange framework. The key idea is to split the entire energy range of the system under consideration into several smaller, overlapping sub intervals. The survey of configurational phase space can then be distributed over multiple processors, with exchanges of random walkers taking place in the overlapping energy windows. To demonstrate the robustness and advantages of this parallel scheme for the simulations of complex systems, we have applied it to protein adsorption problems using the HP lattice protein model[1]. The method gives significant speed-up and achieves strong scaling on small computer architectures like multi-core processors, with a possible improvement in accuracy. We believe that it could be potentially beneficial for large-scale petaflop machines.

  20. Wang-Landau simulations of polymer adsorption on diluted surfaces

    Science.gov (United States)

    Martins, Paulo; Vogel, Thomas; Landau, David

    2012-02-01

    We consider a single linear lattice homopolymer in three dimensions that interacts with a diluted planar surface. A fraction p of the total number of the sites on the substrate is attractive, while the remaining 1-p remains neutral. Our focus is on the conformational transitions the polymer can experience under different environmental conditions, for instance, the surface dilution and the strength of the substrate attraction, compared to the intensity of the monomer-monomer interactions. To get insights on the phase diagram we have performed extensive Monte Carlo simulations, by using the Wang-Landau sampling, for different values of the surface attraction ɛ and the concentration of attractive sites p, specially near the surface percolation threshold pc.

  1. Scalable replica-exchange framework for Wang Landau sampling

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, Thomas [University of Georgia, Athens, GA; Li, Ying Wai [ORNL; Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Landau, David P [University of Georgia, Athens, GA

    2014-01-01

    We investigate a generic, parallel replica-exchange framework for Monte Carlo simulations based on the Wang Landau method. To demonstrate its advantages and general applicability for massively parallel simulations of complex systems, we apply it to lattice spin models, the self-assembly process in amphiphilic solutions, and the adsorption of molecules on surfaces. While of general, current interest, the latter phenomena are challenging to study computationally because of multiple structural transitions occurring over a broad temperature range. We show how the parallel framework facilitates simulations of such processes and, without any loss of accuracy or precision, gives a significant speedup and allows for the study of much larger systems and much wider temperature ranges than possible with single-walker methods.

  2. Improving Wang-Landau sampling with adaptive windows

    Science.gov (United States)

    Cunha-Netto, A. G.; Caparica, A. A.; Tsai, Shan-Ho; Dickman, Ronald; Landau, D. P.

    2008-11-01

    Wang-Landau sampling (WLS) of large systems requires dividing the energy range into “windows” and joining the results of simulations in each window. The resulting density of states (and associated thermodynamic functions) is shown to suffer from boundary effects in simulations of lattice polymers and the five-state Potts model. Here, we implement WLS using adaptive windows. Instead of defining fixed energy windows (or windows in the energy-magnetization plane for the Potts model), the boundary positions depend on the set of energy values on which the histogram is flat at a given stage of the simulation. Shifting the windows each time the modification factor f is reduced, we eliminate border effects that arise in simulations using fixed windows. Adaptive windows extend significantly the range of system sizes that may be studied reliably using WLS.

  3. Analysis on Chi-Chen Wang's Adaptation of Chapters in the English Translation of Hongloumeng

    Institute of Scientific and Technical Information of China (English)

    肖珠

    2015-01-01

    Chi-Chen Wang tries hard to translate out the contents that are of interest to the western common readers. This paper is a study of Chi-chen Wang's adaptation of chapters in his two English abridged translations of Hongloumeng, hoping to be of practical use on the study of translation practice.

  4. Dr. Yu Wang, Director, Natural Science Division, National Science Council, Taiwan

    CERN Multimedia

    Patrice Loïez

    2001-01-01

    Photo 01: L. to r.: Dr. Philippe Bloch, CERN CMS ECAL Deputy Project Manager, Dr. Yu Wang, Dr. Etiennette Auffray, CERN, responsible of the CERN ECAL Regional Centre. Photo 02: L. to r.: Dr. Yu Wang, Dr. Philippe Bloch, Dr. Apollo GO, National Central University, Taiwan, Dr. Etiennette Auffray.

  5. Review - The Sun Rises

    Directory of Open Access Journals (Sweden)

    Mark Bender

    2012-12-01

    Full Text Available Review of: Blackburn, Stuart H. 2010. The Sun Rises: A Shaman's Chant, Ritual Exchange and Fertility in the Apatani Valley. Leiden: Brill. xvii+401. Color and black and white photographs, maps. ISBN: 9789-0041-7578-5 (hardcover, 97USD. The Sun Rises is a model study contextualizing an oral narrative tradition in the social and ritual fabric of a remote community in northeast India. In many ways a companion volume to Himalayan Tribal Tales (Blackburn 2008, the text presents the first substantial translation of a key ritual text of the Apantani Valley dwellers in Arunachal Pradesh, located on the contested border between China (Tibet and India. The Apatani speak a Tibeto-Burman language, practice intensive rice agriculture in carefully terraced fields, and number about 35,000. Their clans populate several centuries-old villages. Until recently, they were separated from the lowlands of Assam and surrounded only by peoples practicing various forms of shifting agriculture. The valley dwellers have increasingly encountered modernization over the last few decades, including Indian and global popular culture, and Christianity. The heart of this book is a chant of nineteen segments.

  6. Eruptions from the Sun

    Science.gov (United States)

    Kohler, Susanna

    2015-11-01

    The Sun often exhibits outbursts, launching material from its surface in powerful releases of energy. Recent analysis of such an outburst captured on video by several Sun-monitoring spacecraft may help us understand the mechanisms that launch these eruptions.Many OutburstsSolar jets are elongated, transient structures that are thought to regularly release magnetic energy from the Sun, contributing to coronal heating and solar wind acceleration. Coronal mass ejections (CMEs), on the other hand, are enormous blob-like explosions, violently ejecting energy and mass from the Sun at incredible speeds.But could these two types of events actually be related? According to a team of scientists at the University of Science and Technology of China, they may well be. The team, led by Jiajia Liu, has analyzed observations of a coronal jet that they believe prompted the launch of a powerful CME.Observing an ExplosionGif of a movie of the CME, taken by the Solar Dynamics Observatorys Atmospheric Imaging Assembly at a wavelength of 304. The original movie can be found in the article. [Liu et al.]An army of spacecraft was on hand to witness the event on 15 Jan 2013 including the Solar Dynamics Observatory (SDO), the Solar and Heliospheric Observatory (SOHO), and the Solar Terrestrial Relations Observatory (STEREO). The instruments on board these observatories captured the drama on the northern limb of the Sun as, at 19:32 UT, a coronal jet formed. Just eight minutes later, a powerful CME was released from the same active region.The fact that the jet and CME occurred in the same place at roughly the same time suggests theyre related. But did the initial motions of the CME blob trigger the jet? Or did the jet trigger the CME?Tying It All TogetherIn a recently published study, Liu and collaborators analyzed the multi-wavelength observations of this event to find the heights and positions of the jet and CME. From this analysis, they determined that the coronal jet triggered the release

  7. El nou ordre lingüístic

    Directory of Open Access Journals (Sweden)

    Joshua A. Fishman

    2001-07-01

    Full Text Available El fenomen de la globalització que vivim actualment ha provocat canvis lingüístics molt importants a escala mundial. L'anglès ha esdevingut la llengua internacional, del poder econòmic i polític, i s'està convertint en la llengua de les classes socials altes i el jovent. Paral·lelament, però, les llengües regionals també estan experimentant una gran difusió, gràcies a les noves interaccions socials i al suport econòmic dels governs que les representen. Alhora, i com a resultat d'aquestes dues tendències, sorgeix el sentiment d'arrelament de les comunitats locals, que veuen la llengua local com a marca d'autenticitat que cal defensar davant del fenomen de la globalització i la regionalització. Ens dirigim, doncs, cap a una societat multilingüe, en què cada llengua ha de tenir les seves pròpies funcions socials distintives, encara que sigui inevitable que es generin conflictes entre les llengües en contacte. En vista d'aquesta situació, l'autor anticipa una pèrdua de l'hegemonia de l'anglès a favor de l'augment de les llengües regionals i una futura extinció de les llengües més minoritàries.

  8. La ética discursiva y el problema del conocimiento pre-lingüístico

    Directory of Open Access Journals (Sweden)

    Andrés Crelier

    2012-12-01

    Full Text Available El trabajo problematiza la relación entre el discurso, la base de fundamentación de la ética discursiva, y las capacidades cognitivas pre-lingüísticas. En primer lugar, se critican diversas formas de idealismo lingüístico que suponen que toda capacidad cognitiva depende del lenguaje y se defiende un idealismo "débil", según el cual el conocimiento no lingüístico es virtualmente expresable mediante el lenguaje. En segundo término, se sostiene que entender de este modo lo pre-lingüístico permite aplicar el principio de la ética discursiva a agentes incapaces de usar el discurso, como los niños pre-lingüísticos o determinados animales cercanos evolutivamente al hombre.This paper analyses the relation between discourse, which is the justification basis of Discourse Ethics, and the pre-linguistic cognitive capacities. First, we criticize different forms of linguistic idealism and defend a weak version of idealism according to which non-linguistic knowledge is virtually expressible by means of language. Secondly, we claim that in this way the principle of the Discourse Ethics can be applied even to agents incapable of discourse, such as pre-linguistic children and certain animals closely related to human beings.

  9. Los estudios gramscianos hoy: ¿Gramsci Lingüísta?

    Directory of Open Access Journals (Sweden)

    Manuel S. Almeida Rodríguez

    2007-01-01

    Full Text Available Se aprovecha el setenta aniversario de la muerte del marxista italiano Aantonio Ggramsci (1891-1937 para hacer un balance general de la influencia de su obra, principalmente en sus Cuadernos de la cárcel. Se enfatiza en uno de los temas menos trabajados en los estudios gramscianos, los escritos carcelarios de Gramsci sobre cuestiones de lingüística. Habiendo manifestado un agudo interés por la lingüística y la filología ya como estudiante en la Universidad de Turín, la inclinación por la lingüística continúa en los cuadernos carcelarios. Este ensayo trata los contornos generales de la concepción gramsciana del lenguaje. Demuestra cómo fue influenciada por los debates en el campo de la lingüística italiana entre los neogramáticos y los neolingüistas. Además, vemos que el interés de Gramsci por los temas lingüísticos reflejan la preocupación subyacente por la «cuestión de la lengua» en Italia. Esto último le da un tono político explícito a sus escritos al respecto. Asimismo, hacemos un breve análisis de algunos de los planteamientos principales presentes en el cuaderno veintinueve, dedicado completamente al estudio de la gramática

  10. The validated sun exposure questionnaire

    DEFF Research Database (Denmark)

    Køster, B; Søndergaard, J; Nielsen, J B

    2017-01-01

    Few questionnaires used in monitoring sun-related behavior have been tested for validity. We established criteria validity of a developed questionnaire for monitoring population sun-related behavior. During May-August 2013, 664 Danes wore a personal electronic UV-dosimeter for one week...... that measured the outdoor time and dose of erythemal UVR exposure. In the following week, they answered a questionnaire on their sun-related behavior in the measurement week. Outdoor time measured by dosimetry correlated strongly with both outdoor time and the developed exposure scale measured....... The weekly sunburn fraction correlated strongly with the number of ambient sun hours (r=0.73, p

  11. The Sun, Mercury, and Venus

    CERN Document Server

    Elkins-Tanton, Linda T

    2010-01-01

    The Messenger mission to Mercury opened a new window into the inner solar system. In 2008, this mission began a number of years of flybys, culminating in an orbital insertion around Mercury and producing unparalleled observations about this mysterious innermost planet. Mercury orbits so close to the Sun, from the point of view of Earth, that seeing it from the Earth against the Sun's glare is a great challenge. At the same time, the huge gravitational force of the Sun makes it a challenge to put a mission on Mercury without losing it into the Sun. Now, with heightened understanding of Mercury,

  12. The Rapidly Rotating Sun

    Science.gov (United States)

    Hanasoge, Shravan M.; Duvall, Thomas L., Jr.; Sreenivasan, Katepalli R.

    2012-01-01

    Convection in the solar interior is thought to comprise structures at a continuum of scales, from large to small. This conclusion emerges from phenomenological studies and numerical simulations though neither covers the proper range of dynamical parameters of solar convection. In the present work, imaging techniques of time-distance helioseismology applied to observational data reveal no long-range order in the convective motion. We conservatively bound the associated velocity magnitudes, as a function of depth and the spherical-harmonic degree l to be 20-100 times weaker than prevailing estimates within the wavenumber band l ux of a solar luminosity outwards? The Sun is seemingly a much faster rotator than previously thought, with advection dominated by Coriolis forces at scales l < 60.

  13. Sun light European Project

    Science.gov (United States)

    Soubielle, Marie-Laure

    2015-04-01

    2015 has been declared the year of light. Sunlight plays a major role in the world. From the sunbeams that heat our planet and feed our plants to the optical analysis of the sun or the modern use of sun particles in technologies, sunlight is everywhere and it is vital. This project aims to understand better the light of the Sun in a variety of fields. The experiments are carried out by students aged 15 to 20 in order to share their discoveries with Italian students from primary and secondary schools. The experiments will also be presented to a group of Danish students visiting our school in January. All experiments are carried out in English and involve teams of teachers. This project is 3 folds: part 1: Biological project = what are the mechanisms of photosynthesis? part 2: Optical project= what are the components of sunlight and how to use it? part 3: Technical project= how to use the energy of sunlight for modern devices? Photosynthesis project Biology and English Context:Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can later fuel the organisms' activities. This chemical energy is stored in molecules which are synthesized from carbon dioxide and water. In most cases, oxygen is released as a waste product. Most plants perform photosynthesis. Photosynthesis maintains atmospheric oxygen levels and supplies all of the organic compounds and most of the energy necessary for life on Earth. Outcome: Our project consists in understanding the various steps of photosynthesis. Students will shoot a DVD of the experiments presenting the equipments required, the steps of the experiments and the results they have obtained for a better understanding of photosynthesis Digital pen project Electricity, Optics and English Context: Sunlight is a complex source of light based on white light that can be decomposed to explain light radiations or colours. This light is a precious source to create

  14. Physics of the sun

    CERN Document Server

    Holzer, Thomas; Mihalas, Dimitri; Ulrich, Roger

    1986-01-01

    This volume, together with its two companion volumes, originated in a study commis­ sioned by the United States National Academy of Sciences on behalf of the National Aeronautics and Space Administration. A committee composed of Tom Holzer, Dimitri Mihalas, Roger Ulrich and myself was asked to prepare a comprehensive review of current knowledge concerning the physics of the sun. We were fortunate in being able to persuade many distinguished scientists to gather their forces for the preparation of 21 separate chapters covering not only solar physics but also relevant areas of astrophysics and solar-terrestrial relations. It proved necessary to divide the chapters into three separate volumes that cover three different aspects of solar physics. Volumes 1 and 2 are concerned with 'The Solar Interior' and with 'The Solar Atmosphere'. This volume, devoted to 'Astrophysics and Solar-Terrestrial Relations', focuses on problems of solar physics from these two different but complementary perspectives. The emphasis thr...

  15. The Dual Functionals for the Generalized Ball Basis of Wang-Said Type and Basis Transformation Formulas

    Institute of Scientific and Technical Information of China (English)

    Ping Jiang; Hongyi Wu; Jieqing Tan

    2006-01-01

    The generalized Ball curves of Wang-Said type with a position parameter L not only unify the Wang-Ball curves and the Said-Ball curves, but also include several useful intermediate curves. This paper presents the dual functionals for the generalized Ball basis of Wang-Said type. The relevant basis transformation formulae are also worked out.

  16. Why the sun sucks - Architects versus the sun

    NARCIS (Netherlands)

    De Lange, N.; Niesten, J.; Taminiau, P.

    2014-01-01

    This "designers' manual" is made during the TIDO-course AR0531 Innovation and Sustainability This manual will show how not to design with the Sun. By showing examples how buildings have failed that have not taken the Sun and its effects in consideration, one should get a clearer picture of how you

  17. Why the sun sucks - Architects versus the sun

    NARCIS (Netherlands)

    De Lange, N.; Niesten, J.; Taminiau, P.

    2014-01-01

    This "designers' manual" is made during the TIDO-course AR0531 Innovation and Sustainability This manual will show how not to design with the Sun. By showing examples how buildings have failed that have not taken the Sun and its effects in consideration, one should get a clearer picture of how you

  18. Tectonic ore-controlling in the middle southern segment of Da Hinggan Ling, Northeast China

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Studies on geotectonic evolution, regionally geological characteristics and ore-forming and ore-controlling structures have shown that since the Mesozoic the Da Hinggan Ling region has entered the typical intercontinental orogenic stage, which appears to be closely related to mantle plume activities. Da Hinggan Ling is a typical mantle branch structure and possesses obvious magmatic-metamorphic complexes in the core, detachment slip beds in the periphery and overlapped fault depression basins. Moreover, all these are the principal factors leading to ore formation and ore controlling in the region. This paper also further explores the mechanism of mineralization in the middle-southern segment of Da Hinggan Ling,summaries the rules of mineralization, puts forward the models of mineralization and points out the oresearch orientations in the future time.

  19. Effect of Crossbreed on the Muscle Quality (Chemical Composition) in Yun-Ling Black Goats

    Institute of Scientific and Technical Information of China (English)

    JIA Jun-jing; TIAN Yun-bo; ZHANG Xi; HUANG Qi-chao; WEN Sheng-ping; GU Feng-ying; GE Chang-rong; CAO Zhen-hui; CHENG Zhi-bin; M. Jois

    2009-01-01

    Twenty castrated male goats, each of Yun-Ling Black goats (YLB goat), N×YLB hybrid goats (Nubian ♂×Yun-Ling Black goats ♀) and B×YLB hybrid goats (Boer ♂×Yun-Ling Black goats ♀), were used to evaluate the effect of crossbreeding on the meat chemical composition in the YLB goats of China. After weaning of 90 days, all the experimental goats were reared on natural pasture when they were slaughtered at an age of 730 days. The longissimus dorsi (LD) and biceps femoris (BF) muscles were sampled from each carcass to determine chemical compositions. Both hybrid goats had higher protein content (P0.05). The YLB goats had significantly higher (P0.05). In contrast, the proportion of poly-unsaturated in the YLB goats was significantly lower (P<0.05) than that in the hybrid goats.

  20. Exploring HP protein models using Wang-Landau sampling

    Science.gov (United States)

    Wuest, Thomas; Landau, David P.

    2008-03-01

    The hydrophobic-polar (HP) protein model has become a standard in assessing the efficiency of computational methods for protein structure prediction as well as for exploring the statistical physics of protein folding in general. Numerous methods have been proposed to address the challenges of finding minimal energy conformations within the rough energy landscape of this lattice heteropolymer model. However, only a few studies have been dedicated to the more revealing - but also more demanding - problem of estimating the density of states which allows access to thermodynamic properties of a system at any temperature. Here, we show that Wang-Landau sampling, in connection with a suitable move set (``pull moves''), provides a powerful route for the ground state search and the precise determination of the density of states for HP sequences (with up to 100 monomers) in both, two and three dimensions. Our procedure possesses an intrinsic simplicity and overcomes the inevitable limitations inherent in other more tailored approaches. The main advantage lies in its general applicability to a broad range of lattice protein models that go beyond the scope of the HP model.

  1. Sobre el Estatuto Lingüístico de las lenguas de señas

    OpenAIRE

    Reyes Tejedor, Mariano

    2007-01-01

    El objetivo de este artículo es reivindicar que las lenguas de señas o signos son sistemas lingüísticos naturales y no códigos artificiales de comunicación y que, por tanto, deben ser estudiadas como tales desde las disciplinas científicas. Con este objetivo, presentamos evidencias Neurolingüísticas y Psicolingüísticas que contradicen este prejuicio lingüístico arraigado en nuestra sociedad e incluso en ámbitos académicos universitarios.

  2. Lingüística en la escuela: Análisis sintáctico

    OpenAIRE

    Manjón-Cabeza Cruz, Antonio José

    2001-01-01

    Las corrientes dominantes en la ense_anza de la lengua materna han tenido consecuencias positivas y negativas. Entre las últimas cabe recordar el abandono de reflexión y experimentación en la ense_anza de cuestiones lingüísticas, especialmente en el terreno del análisis sintáctico escolar. En este trabajo repaso los fundamentos lingüístico-perceptivos del análisis sintáctico oficial (constituyentes inmediatos) y de una posible alternativa (dependencias). Defiendo que, aunque ambos son equipar...

  3. Smart, passive sun facing surfaces

    Science.gov (United States)

    Hively, Lee M.

    1996-01-01

    An article adapted for selectively utilizing solar radiation comprises an absorptive surface and a reflective surface, the absorptive surface and the reflective surface oriented to absorb solar radiation when the sun is in a relatively low position, and to reflect solar radiation when the sun is in a relatively high position.

  4. Global Seismology of the Sun

    CERN Document Server

    Basu, Sarbani

    2016-01-01

    The seismic study of the Sun and other stars offers a unique window into the interior of these stars. Thanks to helioseismology, we know the structure of the Sun to admirable precision. In fact, our knowledge is good enough to use the Sun as a laboratory. We have also been able to study the dynamics of the Sun in great detail. Helioseismic data also allow us to probe the changes that take place in the Sun as solar activity waxes and wanes. The seismic study of stars other than the Sun is a fairly new endeavour, but we are making great strides in this field. In this review I discuss some of the techniques used in helioseismic analyses and the results obtained using those techniques. In this review I focus on results obtained with global helioseismology, i.e., the study of the Sun using its normal modes of oscillation. I also briefly touch upon asteroseismology, the seismic study of stars other than the Sun, and discuss how seismic data of others stars are interpreted.

  5. Lingüística computacional y esteganografía lingüística. Distribuyendo información oculta con recursos mínimos

    Directory of Open Access Journals (Sweden)

    Muñoz Muñoz, Alfonso

    2013-04-01

    Full Text Available Computational linguistics and linguistic steganography could allow to design useful systems in the protection / privacy of digital communications and digital language watermarking. However, building these systems is not always possible provided a series of conditions are not met. This article investigates whether it is possible to design procedures to hide information in natural language using minimal linguistic and computational resources. An algorithm is proposed and implemented, arguing for the usefulness and security of such proposals.La lingüística computacional puede ser aprovechada junto a la ciencia de la esteganografía lingüística para diseñar sistemas útiles en la protección/privacidad de las comunicaciones digitales y en el marcado digital de textos. No obstante, para poder llevar a cabo tal tarea se requiere de una serie de condiciones que no siempre se dan. En este artículo se investiga si es posible diseñar procedimientos que permitan ocultar información en lenguaje natural utilizando la mínima cantidad de recursos tanto lingüísticos como computacionales. Se propone un algoritmo y se implementa, razonando posteriormente a favor de la utilidad y la seguridad de propuestas de este tipo.

  6. Reconnection on the Sun

    Science.gov (United States)

    Kohler, Susanna

    2016-05-01

    Because the Sun is so close, it makes an excellent laboratory to study processes we cant examinein distant stars. One openquestion is that of how solar magnetic fields rearrange themselves, producing the tremendous releases of energy we observe as solar flares and coronal mass ejections (CMEs).What is Magnetic Reconnection?Magnetic reconnection occurs when a magnetic field rearranges itself to move to a lower-energy state. As field lines of opposite polarity reconnect, magnetic energy is suddenly converted into thermal and kinetic energy.This processis believed to be behind the sudden releases of energy from the solar surface in the form of solar flares and CMEs. But there are many different models for how magnetic reconnection could occur in the magnetic field at the Suns surface, and we arent sure which one of these reconnection types is responsible for the events we see.Recently, however, several studies have been published presenting some of the first observational support of specific reconnection models. Taken together, these observations suggest that there are likely several different types of reconnection happening on the solar surface. Heres a closer look at two of these recent publications:A pre-eruption SDO image of a flaring region (b) looks remarkably similar to a 3D cartoon for typical breakout configuration (a). Click for a closer look! [Adapted from Chen et al. 2016]Study 1:Magnetic BreakoutLed by Yao Chen (Shandong University in China), a team of scientists has presented observations made by the Solar Dynamics Observatory (SDO) of a flare and CME event that appears to have been caused by magnetic breakout.In the magnetic breakout model, a series of loops in the Suns lower corona are confined by a surrounding larger loop structure called an arcade higher in the corona. As the lower loops push upward, reconnection occurs in the upper corona, removing the overlying, confining arcade. Without that extra confinement, the lower coronal loops expand upward

  7. Yue Joseph Wang named Grant A. Dove Professor of Electrical and Computer Engineering

    OpenAIRE

    Owczarski, Mark

    2009-01-01

    Yue Joseph Wang, professor of electrical and computer engineering in the College of Engineering at Virginia Tech, has been named the Grant A. Dove Professor of Electrical and Computer Engineering by the Virginia Tech Board of Visitors.

  8. PhD Wang Xingchu,A Successful Leader of A High-tech Company Reform

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ PhD Wang Xingchu was born in 1962. He is the Board Chairman of Shanghai Biotechnology Industrial Garden Coalition Development Co., Ltd. and the General Manager of Shanghai Hua Xin High-Biotechnology Co., Ltd.

  9. A new paradigm for petascale Monte Carlo simulation: Replica exchange Wang-Landau sampling

    CERN Document Server

    Li, Ying Wai; Wüst, Thomas; Landau, David P

    2014-01-01

    We introduce a generic, parallel Wang-Landau method that is naturally suited to implementation on massively parallel, petaflop supercomputers. The approach introduces a replica-exchange framework in which densities of states for overlapping sub-windows in energy space are determined iteratively by traditional Wang-Landau sampling. The advantages and general applicability of the method are demonstrated for several distinct systems that possess discrete or continuous degrees of freedom, including those with complex free energy landscapes and topological constraints.

  10. A new paradigm for petascale Monte Carlo simulation: Replica exchange Wang-Landau sampling

    Science.gov (United States)

    Li, Ying Wai; Vogel, Thomas; Wüst, Thomas; Landau, David P.

    2014-05-01

    We introduce a generic, parallel Wang-Landau method that is naturally suited to implementation on massively parallel, petaflop supercomputers. The approach introduces a replica-exchange framework in which densities of states for overlapping sub-windows in energy space are determined iteratively by traditional Wang-Landau sampling. The advantages and general applicability of the method are demonstrated for several distinct systems that possess discrete or continuous degrees of freedom, including those with complex free energy landscapes and topological constraints.

  11. A new paradigm for petascale Monte Carlo simulation: Replica exchange Wang Landau sampling

    Energy Technology Data Exchange (ETDEWEB)

    Li, Ying Wai [ORNL; Vogel, Thomas [Los Alamos National Laboratory (LANL); Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Landau, David P [University of Georgia, Athens, GA

    2014-01-01

    We introduce a generic, parallel Wang Landau method that is naturally suited to implementation on massively parallel, petaflop supercomputers. The approach introduces a replica-exchange framework in which densities of states for overlapping sub-windows in energy space are determined iteratively by traditional Wang Landau sampling. The advantages and general applicability of the method are demonstrated for several distinct systems that possess discrete or continuous degrees of freedom, including those with complex free energy landscapes and topological constraints.

  12. Chemical gas-dynamics beyond Wang Chang-Uhlenbeck's kinetics

    Energy Technology Data Exchange (ETDEWEB)

    Kolesnichenko, Evgeniy G. [Gas Kinetics Lab, Moscow State University, Institute for Mechanics, Moscow, 117192 (Russian Federation); Gorbachev, Yuriy E. [Research Department, Coddan Technologies LLC, St. Petersburg, 197342 (Russian Federation)

    2014-12-09

    Wang Chang-Uhlenbeck equation does not give possibility to take into account intermolecular processes such as redistribution of the energy among different degrees of freedom. The modification of the generalized Wang Chang-Uhlenbeck equation including such processes is proposed. It allows to study for instance the kinetics of non-radiative transitions. Limitations of this approach are connected with the requirements of absence of polarization of rotational momentum and phases of intermolecular vibrations.

  13. Totality eclipses of the Sun

    CERN Document Server

    Littmann, Mark; Willcox, Ken

    2008-01-01

    A total eclipse of the Sun is the most awesome sight in the heavens. Totality: Eclipses of the Sun takes you to eclipses of the past, present, and future, and lets you see - and feel - why people travel to the ends of the Earth to observe them. - ;A total eclipse of the Sun is the most awesome sight in the heavens. Totality: Eclipses of the Sun takes you to eclipses of the past, present, and future, and lets you see - and feel - why people travel to the ends of the Earth to observe them. Totality: Eclipses of the Sun is the best guide and reference book on solar eclipses ever written. It explains: how to observe them; how to photograph and videotape them; why they occur; their history and mythology; and future eclipses - when and where to see them. Totality also tells the remarkable story of how eclipses shocked scientists, revealed the workings of the Sun, and made Einstein famous. And the book shares the experiences and advice of many veteran eclipse observers. Totality: Eclipses of the Sun is profusely ill...

  14. Diversidade lingüística e cultural no ensino de linguas

    Directory of Open Access Journals (Sweden)

    Pablo Romero Alegría

    2011-01-01

    Full Text Available Reseña de la obra: Mª Teresa Díaz García, Inmaculada Mas Álvarez, Luz Zas Varela. Diversidade lingüística e cultural no ensino de linguas. tresCtres Editores. Santa Comba (A Coruña, 2009.281 págs. ISBN: 978-84-92727-10-0

  15. Osmolaritetsmåling af tårevæsken med Tearlab

    DEFF Research Database (Denmark)

    Vestergaard, Anders Højslet; Hjortdal, Jesper

    2013-01-01

    Tørre øjne er en hyppigt forekommende tilstand, og med alderen ses ofte tiltagende symptomer. Tårefilmen og graden af tørre øjne kan evalueres på mange forskellige måder og med forskellige teknikker, som dog ikke altid korrelerer med hinanden og patientens symptomer. Måling af tårefilmens...

  16. Kortlægning og måling af opgaver i efterskolernes vejledning

    DEFF Research Database (Denmark)

    Thomsen, Rie

    DPU har i samarbejde med Efterskoleforeningen gennemført Kortlægning og måling af opgaver i efterskolernes vejledning. Resultatet af dette arbejde præsenteres i denne rapport. Undersøgelsen indgår i en større forskningsmæssig indsats med titlen Evaluering og dokumentation af efterskolernes vejled...

  17. Fællesnordiske retningslinier for måling af de termiske indeklimaparametre

    DEFF Research Database (Denmark)

    Valbjørn, O.; Erikson, B.; Löfstedt, B.

    De fællesnordiske retningslinier er godkendt af den nordiske ventilationsgruppe den 13.januar 1975. Retningslinierne indeholder en oversigt over de oplysninger, der i det mindste skal fremgå af en indeklimamåling, for at det med rimelig sikkerhed kan vurderes, om de hygiejniske krav til det termi...

  18. Sun, UV Radiation and Your Eyes

    Science.gov (United States)

    ... Patient Stories Español Eye Health / Tips & Prevention Your Eyes and the Sun Sections The Sun, UV Radiation ... Safety Infographic The Sun, UV Radiation and Your Eyes Written by: David Turbert Aug. 28, 2014 Keep ...

  19. Clustering of Sun Exposure Measurements

    DEFF Research Database (Denmark)

    Have, Anna Szynkowiak; Larsen, Jan; Hansen, Lars Kai

    2002-01-01

    In a medically motivated Sun-exposure study, questionnaires concerning Sun-habits were collected from a number of subjects together with UV radiation measurements. This paper focuses on identifying clusters in the heterogeneous set of data for the purpose of understanding possible relations between...... Sun-habits exposure and eventually assessing the risk of skin cancer. A general probabilistic framework originally developed for text and Web mining is demonstrated to be useful for clustering of behavioral data. The framework combines principal component subspace projection with probabilistic...

  20. Prototype of sun projector device

    Science.gov (United States)

    Ihsan; Dermawan, B.

    2016-11-01

    One way to introduce astronomy to public, including students, can be handled by solar observation. The widely held device for this purpose is coelostat and heliostat. Besides using filter attached to a device such as telescope, it is safest to use indirect way for observing the Sun. The main principle of the indirect way is deflecting the sun light and projecting image of the sun on a screen. We design and build a simple and low-cost astronomical device, serving as a supplement to increase public service, especially for solar observation. Without using any digital and intricate supporting equipment, people can watch and relish image of the Sun in comfortable condition, i.e. in a sheltered or shady place. Here we describe a design and features of our prototype of the device, which still, of course, has some limitations. In the future, this prototype can be improved for more efficient and useful applications.

  1. Procesos de acomodación lingüística de la inmigración latinoamericana en Madrid

    OpenAIRE

    2010-01-01

    En este estudio se ha analizado la posición del colectivo de emigrantes latinoamericanos residentes en Madrid ante un cambio lingüístico universal que afecta al sistema de cortesía. Se han examinado las actitudes lingüísticas de los latinoamericanos ante la cortesía de los madrileños y se han contrastado sus actitudes con su comportamiento lingüístico ante el desplazamiento del eje del poder y su progresiva sustitución por el de la solidaridad. Los resultados ilustran el ...

  2. La Situación Mapuche, Problema de Planificación Lingüística

    Directory of Open Access Journals (Sweden)

    Andrés Gallardo

    Full Text Available En el presente trabajo pretendo abordar la situación de la sociedad mapuche y de su lengua, el mapudungu, desde el punto de vista de un enfoque funcional de la planificación lingülstica. No se trata, pues, de un trabajo especializado de indigenística. Se trata del enfoque de un lingüista interesado en la planificación lingüística, tanto en lo que ésta tiene de actividafi. de orientación pragmática como en lo que tiene de disciplina académica teórica.

  3. La noción de género en la Lingüística Sistémico Funcional y en la Lingüística Textual

    OpenAIRE

    Ciapuscio,Guiomar

    2005-01-01

    El propósito de este artículo es realizar un examen crítico general de la noción de género en dos orientaciones contemporáneas de la lingüística, que se distinguen por los aportes tanto teóricos como empíricos realizados a esta temática: la Lingüística Sistémico Funcional y la Lingüística Textual. La noción de género tiene una enorme relevancia en la lingüística actual y, simultáneamente, representa un desafío de envergadura para los distintos enfoques teóricos debido a su naturaleza intrínse...

  4. NEW SUNS IN THE COSMOS?

    Energy Technology Data Exchange (ETDEWEB)

    De Freitas, D. B.; Leao, I. C.; Lopes, C. E. Ferreira; Paz-Chinchon, F.; Canto Martins, B. L.; Alves, S.; De Medeiros, J. R. [Departamento de Fisica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil); Catelan, M. [Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, Av. Vicuna Mackenna 4860, 782-0436 Macul, Santiago (Chile)

    2013-08-20

    The present work reports on the discovery of three stars that we have identified to be rotating Sun-like stars, based on rotational modulation signatures inferred from light curves from the CoRoT mission's Public Archives. In our analysis, we performed an initial selection based on the rotation period and position in the period-T{sub eff} diagram. This revealed that the stars CoRoT IDs 100746852, 102709980, and 105693572 provide potentially good matches to the Sun with a similar rotation period. To refine our analysis, we applied a novel procedure, taking into account the fluctuations of the features associated with photometric modulation at different time intervals and the fractality traces that are present in the light curves of the Sun and of these ''New Sun'' candidates alike. In this sense, we computed the so-called Hurst exponent for the referred stars, for a sample of 14 CoRoT stars with sub- and super-solar rotational periods, and for the Sun itself in its active and quiet phases. We found that the Hurst exponent can provide a strong discriminant of Sun-like behavior, going beyond what can be achieved with solely the rotation period itself. In particular, we find that CoRoT ID 105693572 is the star that most closely matches the solar rotation properties as far as the latter's imprints on light curve behavior are concerned. The stars CoRoT IDs 100746852 and 102709980 have significant smaller Hurst exponents than the Sun, notwithstanding their similarity in rotation periods.

  5. SunShot Initiative Portfolio Book 2014

    Energy Technology Data Exchange (ETDEWEB)

    Solar Energy Technologies Office

    2014-05-01

    The 2014 SunShot Initiative Portfolio Book outlines the progress towards the goals outlined in the SunShot Vision Study. Contents include overviews of each of SunShot’s five subprogram areas, as well as a description of every active project in the SunShot’s project portfolio as of May 2014.

  6. Ciência Lingüística: da origem saussureana ao percurso sociolingüístico

    Directory of Open Access Journals (Sweden)

    Solyany Soares Salgado

    2009-09-01

    Full Text Available

    Este artigo apresenta algumas considerações sobre as diretrizes tomadas pela ciência Lingüística na tentativa de oferecer um melhor aparato teórico para a compreensão dos fenômenos lingüísticos. Neste trabalho, as propostas teóricas originadas de reflexões feitas por autores como Saussure, Bakhtin, Chomsky e Labov são levadas em consideração para mostrar, entre outras coisas, que os lingüistas estão vendo, cada vez mais, a possibilidade de se trabalhar aspectos em comum de teorias lingüísticas diferentes para melhor explicar o objeto de estudo.

  7. La teoría del decir: la nueva lingüística según Ortega y Gasset

    DEFF Research Database (Denmark)

    Agustin, Oscar Garcia

    2000-01-01

    En diversos artículos Ortega y Gasset sugirió la necesidad de una nueva lingüística, la teoría del decir, que sorprende por la validez y actualidad de sus apreciaciones. Partiendo de la crítica a los límites de la lingüística concebida por Saussure, rebate la dicotomía entre lengua y habla y el e...

  8. Earth's Heat Source - The Sun

    CERN Document Server

    Manuel, Oliver K

    2009-01-01

    The Sun encompasses planet Earth, supplies the heat that warms it, and even shakes it. The United Nation Intergovernmental Panel on Climate Change (IPCC) assumed that solar influence on our climate is limited to changes in solar irradiance and adopted the consensus opinion of a Hydrogen-filled Sun, the Standard Solar Model (SSM). They did not consider the alternative solar model and instead adopted another consensus opinion: Anthropogenic greenhouse gases play a dominant role in climate change. The SSM fails to explain the solar wind, solar cycles, and the empirical link of solar surface activity with Earth changing climate. The alternative solar model, that was molded from an embarrassingly large number of unexpected observations revealed by space-age measurements since 1959, explains not only these puzzles but also how closely linked interactions between the Sun and its planets and other celestial bodies induce turbulent cycles of secondary solar characteristics that significantly affect Earth climate.

  9. Significacion de Amado Alonso para la Lingüistica Española

    OpenAIRE

    Martinez Marin, Juan

    1995-01-01

    Amado Alonso realizó una obra lingüística de carácter plural, como lo revela la variedad de temas que trato: filología románica y fonética histórica, gramática descriptiva, historia de la gramática española, formación e historia del español de América, dialectología, fonología, situación del español en América y norma lingüística, gramática escolar... La explicación de tal hecho puede deberse a dos factores fundamentales: de un lado, a. Alonso supo entender el mensaje de su tiempo que comport...

  10. Naturaleza y origen de los demonios en la épica tibetana de Gesar de Ling

    Directory of Open Access Journals (Sweden)

    Bertha Aceves Torres

    2013-05-01

    Full Text Available El poema épico del héroe tibetano Gesar de Ling nace de tradición oral, posteriormente es escrito en diversas lenguas, y sus interpretaciones orales, en el Tíbet, perduran hasta nuestros días. El conflicto que desata las acciones en el relato es el enfrentamiento del héroe contra los seres demoníacos, que asolan y subyugan al pueblo tibetano. La categoría de demonios en el occidente difiere de la naturaleza de los demonios en el budismo tibetano. La subyugación de los demonios por Gesar de Ling, que se efectúa en el poema, corresponde a uno de los objetivos del budismo a su llegada al Tíbet.

  11. Diversidad lingüística, comunicación y espacio público

    Directory of Open Access Journals (Sweden)

    Jacques Guyot

    2006-01-01

    de la diversidad lingüística en los medios de comunicación en la Unión Europea, tomando en cuenta las relaciones entre las lenguas, territorios e identidades, así como la selección que hacen los medios de comunicación y por lo tanto la visibilidad de algunas lenguas en particular y las relaciones sociales y de poder de los grupos minoritarios dentro de las sociedades democráticas. El autor hace patente la necesidad de tomar en cuenta la reivindicación lingüística más allá del problema meramente cultural, ya que ésta cuestiona al espacio público e implica la redefinición de ciudadanía.

  12. Lévi-Strauss y su encuentro con la lingüística

    Directory of Open Access Journals (Sweden)

    Jon Landaburu

    2010-11-01

    Full Text Available Este artículo evalúa el uso que Lévi-Strauss hizo de la lingüística a la luz de los avances posteriores a los postulados de Ferdinand de Saussure. En particular, critica el desconocimiento del análisis funcional de las lenguas por parte del etnólogo francés, al tiempo que señala que su primer entusiasmo se fue desvaneciendo luegode la publicación de Antropología estructural. Así, afirma que el encuentro de Lévi-Strauss con la lingüística, ya en la década de 1970, termina con la certeza de una gran distancia entre los programas de esa disciplina y la antropología estructural.

  13. Desenvolvimento de Aplicações em Perl com FreeLing 3

    Directory of Open Access Journals (Sweden)

    Alberto Manuel Brandão Simões

    2012-12-01

    Full Text Available O FreeLing é uma ferramenta para processamento de linguagem natural, em especial para análise morfossintáctica e cálculo de árvores de dependências. Embora a escolha de implementação em C++ seja relevante pela eficiência, torna complicado o desenvolvimento de pequenas ferramentas. Além disso, a interface Perl disponibilizada com o próprio FreeLing não é mais que um mapeamento directo da API C++ para Perl, o que não é o mais adequado.Este artigo apresenta as decisões de implementação do módulo Perl FL3, e discute como esta interface torna simples a escrita de pequenos processadores de linguagem natural em Perl.

  14. A small and compact AMS facility for tritium depth profiling

    Indian Academy of Sciences (India)

    M Friedrich; W Pilz; N Bekris; M Glugla; M Kiisk; V Liechtenstein

    2002-12-01

    Depth profiling measurements of tritium in carbon samples have been performed during the past seven years at the AMS facility installed at the Rossendorf 3 MV Tandetron. The samples have been cut from the inner walls of the fusion experiments ASDEX-upgrade/Garching and JET/Culham. The tritium content of the samples from JET required a dedicated AMS facility to prevent any contamination of the versatile 3 MV Tandetron. On the basis of an air-insulated 100 kV tandem accelerator equipped with a gas stripper an AMS facility exclusively devoted to tritium depth profiling was installed, tested and used for routine measurements. After additional successful tests employing diamond-like carbon (DLC) stripper foils at this accelerator, another small and compact 100 kV tandem accelerator with SF6 insulation and a DLC stripper has been installed at the AMS facility. Results obtained with the different tandem accelerators are presented.

  15. La asimilación lingüística de los inmigrantes rusos en Barcelona

    OpenAIRE

    Tereshchuk, Andrei

    2017-01-01

    [spa] Esta tesis se centra en el estudio de la asimilación lingüística de los inmigrantes rusos en la provincia de Barcelona. Se analiza el contacto lingüístico del ruso y el español. La investigación se basa en 40 entrevistas realizadas con miembros de la diáspora rusohablante en la zona. Se observan las tendencias generales notadas en el español hablado por los inmigrantes rusos en Barcelona. Además, se presta atención a las interferencias españolas y catalanas en el ruso de la diáspora, y ...

  16. La asimilación lingüística de los inmigrantes rusos en Barcelona

    OpenAIRE

    Tereshchuk, Andrei

    2017-01-01

    Esta tesis se centra en el estudio de la asimilación lingüística de los inmigrantes rusos en la provincia de Barcelona. Se analiza el contacto lingüístico del ruso y el español. La investigación se basa en 40 entrevistas realizadas con miembros de la diáspora rusohablante en la zona. Se observan las tendencias generales notadas en el español hablado por los inmigrantes rusos en Barcelona. Además, se presta atención a las interferencias españolas y catalanas en el ruso de la diáspora, y se com...

  17. Significacion de Amado Alonso para la Lingüistica Española

    OpenAIRE

    Martinez Marin, Juan

    1995-01-01

    Amado Alonso realizó una obra lingüística de carácter plural, como lo revela la variedad de temas que trato: filología románica y fonética histórica, gramática descriptiva, historia de la gramática española, formación e historia del español de América, dialectología, fonología, situación del español en América y norma lingüística, gramática escolar... La explicación de tal hecho puede deberse a dos factores fundamentales: de un lado, a. Alonso supo entender el mensaje de su tiempo que comport...

  18. Análisis lingüístico de los piropos vulgares

    OpenAIRE

    Lopera Medina, Sergio Alonso

    2015-01-01

    Los piropos vulgares se ubican en el plano de la descortesía y estos invaden la imagen de la mujer. En este artículo se reporta el análisis lingüístico de los piropos vulgares en una población universitaria en Medellín-Colombia. Se siguió el método cualitativo de investigación y como instrumento de recolección de información se aplicó un cuestionario de hábitos sociales (Discourse Completion Test –DCT). Se utilizó el programa lingüístico computacional Cratilo para el análisi...

  19. Cryptanalysis of Wang et al.’s lattice-based key exchange protocol

    Directory of Open Access Journals (Sweden)

    Daya Sagar Gupta

    2016-09-01

    Full Text Available Wang et al. proposed a new hard problem on lattices which is an extension of the small integer solution (SIS on lattices. This new generated hard problem is named to be bilateral in-homogeneous small integer solution (Bi-ISIS. Using the hardness of Bi-ISIS, Wang et al. proposed a new key exchange protocol, which is based on the lattice-based cryptography. In this paper, we signalize that Wang et al.’s lattice-based key exchange protocol is vulnerable to an attack, namely, man-in-the-middle (MITM attack. Through this attack, Eavesdropper can intercept the authenticated messages and communicate the unauthentic messages among the communicating parties.

  20. Tight Bounds for Mixing of the Swendsen-Wang Algorithm at the Potts Transition Point

    CERN Document Server

    Borgs, Christian; Tetali, Prasad

    2010-01-01

    We study two widely used algorithms for the Potts model on rectangular subsets of the hypercubic lattice Z^d - heat bath dynamics and the Swendsen-Wang algorithm - and prove that, under certain circumstances, the mixing in these algorithms is torpid or slow. In particular, we show that for heat bath dynamics throughout the region of phase coexistence, and for the Swendsen-Wang algorithm at the transition point, the mixing time in a box of side length L with periodic boundary conditions has upper and lower bounds which are exponential in L^{d-1}. This work provides the first upper bound of this form for the Swendsen-Wang algorithm, and gives lower bounds for both algorithms which significantly improve the previous lower bounds that were exponential in L/(log L)^2.

  1. Psychometric Evaluation of the Wang Pregnancy Stress Scale: Revised for Taiwanese Women.

    Science.gov (United States)

    Wang, Janet F; Billings, Anthony A

    2015-01-01

    Develop and assess psychometric properties of the Wang Pregnancy Stress Scale for measuring stress among pregnant women in Taiwan. Data were collected in 3 obstetric and gynecological clinics in Taiwan; 485 pregnant women participated in this study. We used exploratory factor analysis and internal consistency reliability was measured using Cronbach's alpha. A 4-factor structure emerged for the Wang Pregnancy Stress Scale. The internal reliability of the scale as measured by Cronbach's alpha was .898, with standardized alpha .905. The Wang Pregnancy Stress Scale has high reliability and validity in measuring pregnancy stress that would allow nurses or health care workers to measure women's stress levels during pregnancy. Nurses can use the assessed pregnancy stress to alter intervention of care for their pregnant clients.

  2. Dynamic critical exponents for Swendsen Wang and Wolff algorithms obtained by a nonequilibrium relaxation method

    Science.gov (United States)

    Du, Jianqing; Zheng, Bo; Wang, Jian-Sheng

    2006-05-01

    Using a nonequilibrium relaxation method, we calculate the dynamic critical exponent z of the two-dimensional Ising model for the Swendsen-Wang and Wolff algorithms. We examine dynamic relaxation processes following a quench from a disordered or an ordered initial state to the critical temperature Tc, and measure the exponential relaxation time of the system energy. For the Swendsen-Wang algorithm with an ordered or a disordered initial state, and for the Wolff algorithm with an ordered initial state, the exponential relaxation time fits well to a logarithmic size dependence up to a lattice size L = 8192. For the Wolff algorithm with a disordered initial state, we obtain an effective dynamic exponent zexp = 1.19(2) up to L = 2048. For comparison, we also compute the effective dynamic exponents through the integrated correlation times. In addition, an exact result of the Swendsen-Wang dynamic spectrum of a one-dimensional Ising chain is derived.

  3. Energy degeneracies from Broad Histogram Method and Wang-Landau Sampling

    CERN Document Server

    Lima, Alexandre Pereira; Girardi, Daniel

    2016-01-01

    In this work, we present a comparative study of the accuracy provided by the Wang-Landau sampling and the Broad Histogram method to estimate de density of states of the two dimensional Ising ferromagnet. The microcanonical averages used to describe the thermodynamic behaviour and to use the Broad Histogram method were obtained using the single spin-flip Wang-Landau sampling, attempting to convergence issues and accuracy improvements. We compare the results provided by both techniques with the exact ones for thermodynamic properties and critical exponents. Our results, within the Wang-Landau sampling, reveal that the Broad Histogram approach provides a better description of the density of states for all cases analysed.

  4. Performance of replica-exchange Wang-Landau sampling for the study of spin systems

    Science.gov (United States)

    Li, Ying Wai; Eisenbach, Markus; Vogel, Thomas; Wüst, Thomas; Landau, David P.

    2014-03-01

    The recently proposed replica-exchange Wang-Landau sampling (REWL) is a novel, massively parallel Monte Carlo method which allows for the parallelization of Wang-Landau sampling based on a replica-exchange framework. The robustness of the scheme is demonstrated by its broad applicability on a variety of spin systems: from the simplest models with discrete or continuous energy domains, to complex systems captured by large-scale first principles density functional theory calculations. The accuracy of REWL is studied by comparing the thermodynamic properties with exact solutions and results obtained by the original, serial Wang-Landau sampling. The principles for the speed-up, the strong and weak scaling behavior of REWL are also investigated when different parameter settings are employed. We will show, with the aid of selected spin systems, that the method accelerates the simulations significantly with a possible improved accuracy. Phys. Rev. Lett. 110, 210603 (2013)

  5. Heat conduction and energy diffusion in momentum-conserving one-dimensional full-lattice ding-a-ling model

    Science.gov (United States)

    Gao, Zhibin; Li, Nianbei; Li, Baowen

    2016-02-01

    The ding-a-ling model is a kind of half lattice and half hard-point-gas (HPG) model. The original ding-a-ling model proposed by Casati et al. does not conserve total momentum and has been found to exhibit normal heat conduction behavior. Recently, a modified ding-a-ling model which conserves total momentum has been studied and normal heat conduction has also been claimed. In this work, we propose a full-lattice ding-a-ling model without hard point collisions where total momentum is also conserved. We investigate the heat conduction and energy diffusion of this full-lattice ding-a-ling model with three different nonlinear inter-particle potential forms. For symmetrical potential lattices, the thermal conductivities diverges with lattice length and their energy diffusions are superdiffusive signaturing anomalous heat conduction. For asymmetrical potential lattices, although the thermal conductivity seems to converge as the length increases, the energy diffusion is definitely deviating from normal diffusion behavior indicating anomalous heat conduction as well. No normal heat conduction behavior can be found for the full-lattice ding-a-ling model.

  6. Wang Tiles Texture Synthesis utilizing Bee Evolutionary Genetic Algorithm%基于蜜蜂进化型遗传算法的Wang tiles纹理合成

    Institute of Scientific and Technical Information of China (English)

    孙涛; 徐蔚鸿

    2012-01-01

    In texture synthesis process,the thesis introduces Bee Evolution Genetic Algorithm,and uses the BEGA to realize global optimization of the sample texture selection,and solve diamond juncture problem in the synthesized textures.Therefore,and the quality of Tile sets is improved,and the synthesis speed is grown up.Through the experiment,make the ideal synthetic effect.%在基于Wang Tiles的纹理合成中引入蜜蜂进化型遗传算法,用它来实现样本纹理块选择的全局优化,解决纹理合成出现的菱形接缝问题,提高了Wang Tile集的质量,加快了合成速度。通过实验得到了理想的合成效果。

  7. The Sun: Our Nearest Star

    Science.gov (United States)

    Adams, M. L.; Six, N. Frank (Technical Monitor)

    2002-01-01

    We have in our celestial backyard, a prime example of a variable star. The Sun, long thought to be "perfect" and unvarying, began to reveal its cycles in the early 1600s as Galileo Galilei and Christoph Scheiner used a telescope to study sunspots. For the past four hundred years, scientists have accumulated data, showing a magnetic cycle that repeats, on average, every eleven (or twenty-two) years. In addition, modern satellites have shown that the energy output at radio and x-ray wavelengths also varies with this cycle. This talk will showcase the Sun as a star and discuss how solar studies may be used to understand other stars.

  8. Secretary-General Li Xikui Meets with President of Australian Soong Ching Ling Foundation

    Institute of Scientific and Technical Information of China (English)

    Hu; Yang

    2016-01-01

    Mr.Li Xikui,secretary-general of the CPAFFC,met with Mr.Chen Xinghui,president of Australian Soong Ching Ling Foundation(ASCLF)and his delegation and gave a banquet in honor of them on April 16,2016.During the meeting,Mr.Li and Mr.Chen made a brief introductions of the work done by the CPAFFC and ASCLF recently.

  9. La autenticidad de Prometeo encadenado a la luz de las frecuencias lingüísticas

    OpenAIRE

    Hernández Muñoz, Felipe

    2011-01-01

    9 p. La discusión sobre la autenticidad de la tragedia Prometeo encadenado, tradicionalmente atribuida a Esquilo, sigue siendo susceptible de recibir nuevas aportaciones filológicas. En el tema de la autenticidad en el que entran en consideración criterios apriorísticos y subjetivos, parece útil recurrir a datos más objetivos como el estudio de determinadas frecuencias lingüisticas

  10. Metoder til kortlægning og måling af fysiske ressourcer

    DEFF Research Database (Denmark)

    Nielsen, Niels Christian

    2010-01-01

    Dette indlæg bygger dels på mit oplæg ved workshoppen om måling af lokale ressourcer, og dels på de spørgsmål og kommentarer, der fremkom under den efterfølgende diskussion samt i den efterfølgende skrive- og review-proces. De har i høj grad været med til at give dette struktur og retning - tak...

  11. Las oraciones ambiguas: aportes lingüísticos para su tratamiento pedagógico

    Directory of Open Access Journals (Sweden)

    Jorge Esquivel Villafana

    2011-05-01

    Full Text Available El presente trabajo se propone abordar la manera en que los avances dela lingüística teórica pueden ser aplicados en la enseñanza de la gramática,específicamente del nivel sintáctico de la lengua. A modo de ejemplose analizará el caso de las oraciones ambiguas en el español.

  12. Enfoques lingüísticos sobre la prehistoria del sur de California

    Directory of Open Access Journals (Sweden)

    Don Laylander

    1993-05-01

    Full Text Available El estudio de la evidencia sobre los idiomas indígenas yumanos, utoaztecanos y chumashanos del sur de California y de la parte norte de Baja California se plantea por el autor como una forma que puede ayudarnos a entender mejor el desarrollo prehistórico de la región. Para esto, se analizan en este documento diversos enfoques utilizados en los estudios lingüísticos de estas comunidades tempranas. El modelo genético de la descendencia lingüística sugiere que grupos de idiomas del periodo histórico tienen orígenes comunes, que son seguidos por una sucesión de separaciones que se pueden atribuir a diversos factores. La glotocronología ofrece estimaciones de los periodos de esas separaciones. La teoría de la migración evalúa la probabilidad relativa de que sean regiones particulares las patrias originales de las comunidades lingüísticas antes de que se dividieran. La difusión de lenguajes refleja las yuxtaposiciones geográficas e interacciones de comunidades de idiomas en el pasado. Por su parte la reconstrucción de la proto-cultura promete ayudar en la identificación de las patrias originales y de las sucesiones de innovaciones culturales

  13. The ScreeLing: occurrence of linguistic deficits in acute aphasia post-stroke.

    Science.gov (United States)

    El Hachioui, Hanane; Sandt-Koenderman, Mieke W M E; Dippel, Diederik W J; Koudstaal, Peter J; Visch-Brink, Evy G

    2012-05-01

    To investigate the occurrence of semantic, phonological and syntactic deficits in acute aphasia with the ScreeLing after the establishment of its psychometric properties. To examine the relationship between these deficits and: (i) overall aphasia severity; and (ii) quality of Spontaneous Speech. The reliability and validity of the ScreeLing was established by investigating 141 subjects with acute aphasia (2 weeks after stroke), 23 with chronic aphasia, and 138 healthy controls. In addition, the acute patients were assessed with the Token Test and a Spontaneous Speech rating (Aphasia Severity Rating Scale). The ScreeLing was found to be valid and reliable for assessing the presence and severity of aphasia and linguistic deficits at 12 days after stroke. In 22.4% of the patients deficits were found in only 1 of the 3 linguistic levels; phonology was most frequently disturbed (16.3%), compared with semantics (2.7%), and syntax (3.4%). The number of impaired linguistic levels was related to aphasia severity: patients with a 3-level disorder had the lowest Token Test scores; patients with a selective phonological disorder had the highest Spontaneous Speech ratings. Phonology alone explained 54.6% of the variance in the Spontaneous Speech rating. In the acute stage, linguistic-level deficits are already present independently of each other, with phonology affected most frequently.

  14. Thermal Transition Properties of Hoki (Macruronus novaezelandiae and Ling (Genypterus blacodes Skin Collagens: Implications for Processing

    Directory of Open Access Journals (Sweden)

    Marcus Newberry

    2011-06-01

    Full Text Available Hoki (Macruronus novaezelandiae and ling (Genypterus blacodes are cold-water fish caught in New Zealand waters. Their skins are a major component of the post-processing waste stream. Valuable products could be developed from the skins, as they are primarily composed of collagen, which has many commercial applications. We prepared acid soluble collagens (ASC from hoki and ling skins, and analyzed their thermal denaturation properties using a Rapid Visco™ Analyzer. At slower heating rates the denaturation temperature (TD of hoki and ling collagens decreased. This result is consistent with the model of irreversible rate kinetics for the denaturation of collagen. We determined the effects of solvents that disrupt hydrogen bonding on ASC stability. Increasing concentrations of urea from 0.1 M to 1.0 M and acetic acid from 0.1 M to 0.5 M decreased TD. This resulted from the effects of these reagents on the hydrogen bonds that stabilize the collagen triple helix.

  15. 王维辋川诗意象解读*%The Illustration of the Images of Wang Wei's Wang Chuan Poems

    Institute of Scientific and Technical Information of China (English)

    陈明英

    2013-01-01

    王维辋川诗意象的营造是他追求纯真高洁的审美理想,融合在自然美之中的结晶。诗人能辩证地处理意象的虚实、动静、主次、繁简的关系,精致地描绘山林幽美清空的空灵之境,使言外之旨、象外之趣包含在精炼的意象之中,王维乐隐林泉沉醉自然山水之情因他刻画的意象而跃然纸上。%The creation of images in Wang Wei's Wang Chuan poems is his aesthetic ideal,which means the pursuit of purity and nobility and is fused in the natural beauty's crystallization.The poet can dialectically handle the relations between the empty and solid,act and quiet,primary and seconda-ry,complicatedness and simple of the image,can skillfully depicts the airy transcendence of the na-ture's beauty,and can present the implicated meaning and the fun beside the image in the refined ima-ges.Thus,Wang Wei's love of nature has been expressed vividly for his application of images.

  16. A Comparative Study of Of Studies and Wang Zuoliang’s Translated Version

    Institute of Scientific and Technical Information of China (English)

    陈健飞

    2014-01-01

    Of Studies is an important one in The Essays of Francis Bacon, of which words are concise and refining, reasoning is profound and logic. Wang Zuoliang’s translated version is so efficient and smooth with classical Chinese style that it perfectly re⁃veals the original text, turning out to be the best version among all the translation of Of Studies. This thesis compares Of Studies and Wang Zuoliang’s translated version to analyze their linguistic feature in terms of diction, sentence and figures of speech.

  17. Replica-exchange Wang Landau sampling: pushing the limits of Monte Carlo simulations in materials sciences

    Energy Technology Data Exchange (ETDEWEB)

    Perera, Meewanage Dilina N [ORNL; Li, Ying Wai [ORNL; Eisenbach, Markus [ORNL; Vogel, Thomas [Los Alamos National Laboratory (LANL); Landau, David P [University of Georgia, Athens

    2015-01-01

    We describe the study of thermodynamics of materials using replica-exchange Wang Landau (REWL) sampling, a generic framework for massively parallel implementations of the Wang Landau Monte Carlo method. To evaluate the performance and scalability of the method, we investigate the magnetic phase transition in body-centered cubic (bcc) iron using the classical Heisenberg model parameterized with first principles calculations. We demonstrate that our framework leads to a significant speedup without compromising the accuracy and precision and facilitates the study of much larger systems than is possible with its serial counterpart.

  18. Aperiodic compression and reconstruction of real-world material systems based on Wang tiles.

    Science.gov (United States)

    Doškář, Martin; Novák, Jan; Zeman, Jan

    2014-12-01

    The paper presents a concept to compress and synthesize complex material morphologies that is based on Wang tilings. Specifically, a microstructure is stored in a set of Wang tiles and its reconstruction is performed by means of a stochastic tiling algorithm. A substantial part of the study is devoted to the setup of optimal parameters of the automatic tile design by means of parametric studies with statistical descriptors at heart. The performance of the method is demonstrated on four two-dimensional two-phase target systems, monodisperse media with hard and soft disks, sandstone, and high porosity metallic foam.

  19. Interface tension of the 3d 4-state Potts model using the Wang-Landau algorithm

    CERN Document Server

    Hietanen, A

    2011-01-01

    We study the interface tension of the 4-state Potts model in three dimensions using the Wang- Landau algorithm. The interface tension is given by the ratio of the partition function with a twisted boundary condition in one direction and periodic boundary conditions in all other directions over the partition function with periodic boundary conditions in all directions. With the Wang-Landau algorithm we can explicitly calculate both partition functions and obtain the result for all temperatures. We find solid numerical evidence for perfect wetting. Our algorithm is tested by calculating thermodynamic quantities at the phase transition point.

  20. Day the sun went out

    CERN Multimedia

    2007-01-01

    "A new british sci-fi movie envisages the death of the sun not in billions of years, but in decades. And, amazingly, the film's scientific adviser says this may not be so far from the truth..." (1/2 page)

  1. Effects of Early Sun Exposure

    Science.gov (United States)

    ... can be harmful. It can lead to:Skin changes. Some skin cells with melanin can form a clump. This creates freckles and moles. Over time, these can develop cancer.Early aging. Time spent in the sun makes your skin age faster than normal. Signs of this are wrinkled, tight, or leathery ...

  2. Tracking Planets around the Sun

    Science.gov (United States)

    Riddle, Bob

    2008-01-01

    In earlier columns, the celestial coordinate system of hour circles of right ascension and degrees of declination was introduced along with the use of an equatorial star chart (see SFA Star Charts in Resources). This system shows the planets' motion relative to the ecliptic, the apparent path the Sun follows during the year. An alternate system,…

  3. How Bright Is the Sun?

    Science.gov (United States)

    Berr, Stephen

    1991-01-01

    Presents a sequence of activities designed to allow eighth grade students to deal with one of the fundamental relationships that govern energy distribution. Activities guide students to measure light bulb brightness, discover the inverse square law, compare light bulb light to candle light, and measure sun brightness. (two references) (MCO)

  4. Tracking Planets around the Sun

    Science.gov (United States)

    Riddle, Bob

    2008-01-01

    In earlier columns, the celestial coordinate system of hour circles of right ascension and degrees of declination was introduced along with the use of an equatorial star chart (see SFA Star Charts in Resources). This system shows the planets' motion relative to the ecliptic, the apparent path the Sun follows during the year. An alternate system,…

  5. The Sun Radio Imaging Space Experiment (SunRISE) Mission

    Science.gov (United States)

    Lazio, Joseph; Kasper, Justin; Maksimovic, Milan; Alibay, Farah; Amiri, Nikta; Bastian, Tim; Cohen, Christina; Landi, Enrico; Manchester, Ward; Reinard, Alysha; Schwadron, Nathan; Cecconi, Baptiste; Hallinan, Gregg; Hegedus, Alex; Krupar, Vratislav; Zaslavsky, Arnaud

    2017-04-01

    Radio emission from coronal mass ejections (CMEs) is a direct tracer of particle acceleration in the inner heliosphere and potential magnetic connections from the lower solar corona to the larger heliosphere. Energized electrons excite Langmuir waves, which then convert into intense radio emission at the local plasma frequency, with the most intense acceleration thought to occur within 20 RS. The radio emission from CMEs is quite strong such that only a relatively small number of antennas is required to detect and map it, but many aspects of this particle acceleration and transport remain poorly constrained. Ground-based arrays would be quite capable of tracking the radio emission associated with CMEs, but absorption by the Earth's ionosphere limits the frequency coverage of ground-based arrays (ν ≳ 15 MHz), which in turn limits the range of solar distances over which they can track the radio emission (≲ 3RS). The state-of-the-art for tracking such emission from space is defined by single antennas (Wind/WAVES, Stereo/SWAVES), in which the tracking is accomplished by assuming a frequency-to-density mapping; there has been some success in triangulating the emission between the spacecraft, but considerable uncertainties remain. We describe the Sun Radio Imaging Space Experiment (SunRISE) mission concept: A constellation of small spacecraft in a geostationary graveyard orbit designed to localize and track radio emissions in the inner heliosphere. Each spacecraft would carry a receiving system for observations below 25 MHz, and SunRISE would produce the first images of CMEs more than a few solar radii from the Sun. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

  6. Wang Jinzhen Attended the Forum on Cooperation & Development between Yangtze River Delta and Baltic Sea Region

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ On October 17,on behalf of CCPIT,Vice-Chairman Wang Jinzhen attended the opening ceremony of the 3rd Forum on Cooperation & Development between Yangtze River Delta Region of China and Baltic Sea Region of Europe,where he delivered a speech.

  7. Solution of the Wang Chang-Uhlenbeck equation for molecular hydrogen

    Science.gov (United States)

    Anikin, Yu. A.

    2017-06-01

    Molecular hydrogen is modeled by numerically solving the Wang Chang-Uhlenbeck equation. The differential scattering cross sections of molecules are calculated using the quantum mechanical scattering theory of rigid rotors. The collision integral is computed by applying a fully conservative projection method. Numerical results for relaxation, heat conduction, and a one-dimensional shock wave are presented.

  8. Investigation and Research on the Biographical Date of Wang Zhonglin%王锺霖考

    Institute of Scientific and Technical Information of China (English)

    齐在莒

    2016-01-01

    Aiming at some errors and biased opinions in the research of Wang Zhonglin’s life in recently published articles,the paper provides some new testimonies and arguments.%文章针对新近发表的论文中有关王锺霖研究的疏率及偏颇进行考证辨析。

  9. Symposium on the Occassion of 70th Birthday of Juwen Wang : High Gradient Accelerating Structure

    CERN Document Server

    2015-01-01

    This proceedings volume, for the symposium in honor of Junwen Wang's 70th anniversary, is dedicated to his many important achievements in the field of accelerator physics.It includes the discussions of recent advances and challenging problems in the field of high gradient accelerating structure development.

  10. PhD Wang Xingchu,A Successful Leader of A High-tech Company Reform

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

      PhD Wang Xingchu was born in 1962. He is the Board Chairman of Shanghai Biotechnology Industrial Garden Coalition Development Co., Ltd. and the General Manager of Shanghai Hua Xin High-Biotechnology Co., Ltd.……

  11. Dynamically optimized Wang-Landau sampling with adaptive trial moves and modification factors.

    Science.gov (United States)

    Koh, Yang Wei; Lee, Hwee Kuan; Okabe, Yutaka

    2013-11-01

    The density of states of continuous models is known to span many orders of magnitudes at different energies due to the small volume of phase space near the ground state. Consequently, the traditional Wang-Landau sampling which uses the same trial move for all energies faces difficulties sampling the low-entropic states. We developed an adaptive variant of the Wang-Landau algorithm that very effectively samples the density of states of continuous models across the entire energy range. By extending the acceptance ratio method of Bouzida, Kumar, and Swendsen such that the step size of the trial move and acceptance rate are adapted in an energy-dependent fashion, the random walker efficiently adapts its sampling according to the local phase space structure. The Wang-Landau modification factor is also made energy dependent in accordance with the step size, enhancing the accumulation of the density of states. Numerical simulations show that our proposed method performs much better than the traditional Wang-Landau sampling.

  12. 论王维山水诗的审美特点%The aesthetic characteristics of Wang Wei's landscape poems

    Institute of Scientific and Technical Information of China (English)

    王伟; 和磊

    2015-01-01

    Wang Wei, Mo Jie , the population lay people, is known as"Wang You Cheng", he 's the famous Tang Dynasty poet, painter. This paper will quote the concrete poetry text of Wang Wei's landscape poems, and borrow the concepts for aesthetic category to the analysis and the elaboration of Wang Wei's landscape poems poetry aesthetic characteristics. The main purpose is to absorb and expand the using of Ultra utilitarian aesthetic mentality in Wang Wei's landscape poetry.%以王维山水诗的具体诗作为文本,借于审美范畴,阐述、分析王维山水诗篇创作的审美特点,挖掘展现王维山水诗创作上的超功利审美心态。

  13. Tanel Padar & The Sun veab õhukitarri

    Index Scriptorium Estoniae

    2008-01-01

    Õhukitarri Eesti meistrivõistlustest 19. apr. Tallinnas Rock Cafés (võistluste eestvedajaks on ansambel Tanel Padar & The Sun, kes samas esitleb oma esimest ingliskeelset albumit "Here Comes The Sun")

  14. Tanel Padar & The Sun veab õhukitarri

    Index Scriptorium Estoniae

    2008-01-01

    Õhukitarri Eesti meistrivõistlustest 19. apr. Tallinnas Rock Cafés (võistluste eestvedajaks on ansambel Tanel Padar & The Sun, kes samas esitleb oma esimest ingliskeelset albumit "Here Comes The Sun")

  15. Caddo Sun Accounts across Time and Place

    Science.gov (United States)

    Gerona, Carla

    2012-01-01

    Billy Day, a Tunica/Biloxi, recently described the significance of the sun for Caddoan people. Day quoted an "old Caddo relative" of his who said: "I used to go outside and hold my hands up and bless myself with the sun--'a'hat.' Well, I can't do that anymore because they say we are sun worshipers. We didn't worship the sun. We worshiped what was…

  16. The project 'RiesLing'. Pilot applications for distribution automation; Das Projekt 'RiesLing'. Verteilnetzautomatisierung im Praxistest

    Energy Technology Data Exchange (ETDEWEB)

    Kaempfer, Stefan [ABB AG, Mannheim (Germany); Backes, Juergen [EnBW ODR AG, Ellwangen (Germany); Brunk, Marlis; Kremer, Werner [T-Systems International GmbH, Berlin (Germany); Koerner, Christian [EnBW Regional AG, Stuttgart (Germany)

    2012-07-01

    The fast increasing share of dispersed generation, quality regulation and decreasing cost for information and communication technology will most probably lead to increased monitoring and automation in secondary distribution. A central question in this field is to which extent intelligent secondary substations will be utilized and how the technical concepts will look like. Furthermore new applications in network management are necessary to benefit from the new measurement and control functionalities in the grid. One part of this is the integration of measurements from smart meters into the grid operation. The pilot project 'RiesLing' (Projekt im Ries - Leittechnik intelligent gemacht, translated ''implementation of an intelligent grid contol in the Ries area'') aims to develop optimized technical solutions for the mentioned areas and to test the practical implementation within the grid of EnBW ODR. The region of its implementation is the Noerdlinger Ries, a region in the north-western part of Bavaria and in close vicinity to the federal state of Baden-Wuerttemberg. This area combines a maximum load of around 50 MW with a maximum generation of around 120 MW, mostly from Photovoltaic modules and biogas fuelled engines. The RiesLing project has been initiated in mid 2011. Its technical implementation, set up as 3 packages, will be finished until end of 2012. The implementation phase will be followed by a practical test phase to optimize the technical solution and to derive practical operation experience. The project thus will end by December 2013. The paper shows the solutions and concepts for secondary substations which are developed within the project. (orig.)

  17. Global Warming Blame the Sun

    CERN Document Server

    Calder, N

    1997-01-01

    Concern about climate change reaches a political peak at a UN conference in Kyoto, 1-10 December, but behind the scenes the science is in turmoil. A challenge to the hypothesis that greenhouse gases are responsible for global warming comes from the discovery that cosmic rays from the Galaxy are involved in making clouds (Svensmark and Friis-Christensen, 1997). During the 20th Century the wind from the Sun has grown stronger and the count of cosmic rays has diminished. With fewer clouds, the EarthÕs surface has warmed up. This surprising mechanism explains the link between the Sun and climate change that astronomers and geophysicists have suspected for 200 years.

  18. Total eclipses of the sun.

    Science.gov (United States)

    Zirker, J B

    1980-12-19

    Total eclipses of the sun offer research opportunities in a variety of sciences. Some of the advances in solar physics resulting from eclipse observations are discussed. Experiments at the total eclipse of 16 February 1980 in India are also described. These included a test of general relativity, studies in coronal physics, investigations of solar prominences, diameter measurements, a search for interplanetary dust, a study of the gravity waves in the earth's atmosphere, and experiments on the biological effects on animals and humans.

  19. Revisiting SU(N) integrals

    CERN Document Server

    Zuber, Jean-Bernard

    2016-01-01

    In this note, I revisit integrals over $\\SU(N)$ of the form $ \\int DU\\, U_{i_1j_1}\\cdots U_{i_pj_p}\\Ud_{k_1l_1}\\cdots \\Ud_{k_nl_n}$. While the case $p=n$ is well known, it seems that explicit expressions for $p=n+N$ had not appeared in the literature. Similarities and differences, in particular in the large $N$ limit, between the two cases are discussed

  20. Coherent States with SU(N) Charges

    CERN Document Server

    Mathur, M; Mathur, Manu; Paul, Samir K.

    2003-01-01

    We define coherent states carrying SU(N) charges by exploiting generalized Schwinger boson representation of SU(N) Lie algebra. These coherent states are defined on $2 (2^{N - 1} - 1)$ complex planes. They satisfy continuity property and provide resolution of identity. We also exploit this technique to construct the corresponding non-linear SU(N) coherent states.

  1. The Sun Rises on the Solar Sector

    OpenAIRE

    Ahmad, Reyaz A.

    2009-01-01

    Energy from the sun is abundant and free. Solar energy is in essence electromagnetic radiation emitted from the sun. Earth's climate, hydrologic systems, and ecosystems all derive from the sun. Other forms of renewable power such as wind, wave, biomass, and hydro are an indirect function of solar radiation.

  2. The Sun A User's Manual

    CERN Document Server

    Vita-Finzi, Claudio

    2008-01-01

    The Sun is an account of the many ways in which our nearest star affects our planet, how its influence has changed over the last few centuries and millennia, and the extent to which we can predict its future impact. The Sun's rays foster the formation of Vitamin D by our bodies, but it can also promote skin cancer, cataracts, and mutations in our DNA. Besides providing the warmth and light essential to most animal and plant life, solar energy contributes substantially to global warming. Although the charged particles of the solar wind shield us from harmful cosmic rays, solar storms may damage artificial satellites and cripple communication systems and computer networks. The Sun is the ideal renewable energy source, but its exploitation is still bedevilled by the problems of storage and distribution. Our nearest star, in short, is a complex machine which needs to be treated with caution, and this book will equip every reader with the knowledge that is required to understand the benefits and dangers it can bri...

  3. The faint young Sun problem

    CERN Document Server

    Feulner, Georg

    2012-01-01

    For more than four decades, scientists have been trying to find an answer to one of the most fundamental questions in paleoclimatology, the `faint young Sun problem'. For the early Earth, models of stellar evolution predict a solar energy input to the climate system which is about 25% lower than today. This would result in a completely frozen world over the first two billion years in the history of our planet, if all other parameters controlling Earth's climate had been the same. Yet there is ample evidence for the presence of liquid surface water and even life in the Archean (3.8 to 2.5 billion years before present), so some effect (or effects) must have been compensating for the faint young Sun. A wide range of possible solutions have been suggested and explored during the last four decades, with most studies focusing on higher concentrations of atmospheric greenhouse gases like carbon dioxide, methane or ammonia. All of these solutions present considerable difficulties, however, so the faint young Sun prob...

  4. Sun Savvy Students: Free Teaching Resources from EPA's SunWise Program

    Science.gov (United States)

    Hall-Jordan, Luke

    2008-01-01

    With summer in full swing and the sun is naturally on our minds, what better time to take advantage of a host of free materials provided by the U.S. Environmental Protection Agency's Sun Wise program. Sun Wise aims to teach students and teachers about the stratospheric ozone layer, ultraviolet (UV) radiation, and how to be safe while in the Sun.…

  5. Hacia la contrastividad lingüística (An approach to linguistic contrastivity

    Directory of Open Access Journals (Sweden)

    Felipe Moreno Pérez

    2007-06-01

    Full Text Available A través de esta breve presentación, que da cuenta de un interés teórico y metodológico por estudiar la diversidad de las lenguas, se muestra un enfoque para diseñar metodología de trabajo lingüístico especialmente centrada en el desarrollo de talleres de aplicación en el área de Lingüística. Se propone una serie de coordenadas para aproximarnos a la contrastividad lingüística desde fundamentos teóricos relevantes como el paradigma chomskyano del parámetro y los postulados tipológicos de Joseph Greenberg. Así entonces, el artículo se aproxima a la discusión de los principios que articulan la mecánica universal de las lenguas y las nociones del "menú universal" de ellas que propone Mark Baker. (This brief presentation acknowledges the need of a theoretical and methodological approach for the study of language diversity. It suggests designing a linguistic working methodology centred chiefly in the implementation of practical workshops in Linguistics. It offers several recommendations to address linguistic contrastivity on the basis of relevant theoretical principles, such as the Chomskian paradigm of parameter and Joseph Greenberg's typological postulates. Thus, the article tackles the issue of the principles underlying the universal mechanics of languages and the ideas about the "universal menu" proposed for these by Mark Baker.

  6. La lógica y la lingüística

    OpenAIRE

    Castaño Duque, Germán Albeiro

    1998-01-01

    Este artículo se escribe a partir de las reflexiones hechas de las diferentes formas de razonamiento, planteadas por mi Profesor de Doctorado Eduard Bonet, en Management Sciences, en ESADE, quien a propósito, nos hizo razonar sobre como la lógica, planteada desde Aristóteles, hoy tiene una vitalidad inusitada, a través de múltiples aportaciones al estado de la ciencia actual, por eso me propongo ofrecer de alguna manera la relación que la lógica, tiene con la lingüística.

  7. Métodos de investigación lingüística

    Directory of Open Access Journals (Sweden)

    Pardo Abril Neyla Graciela

    1995-06-01

    Full Text Available

    Tras tan sugestivo título, el libro del profesor Humberto López Morales - catedrático de lingüística en la Universidad de Puerto Rico y de múltiples universidades norteamericanas y europeas, así como incansable y prolifero investigador - presenta una fascinante faceta de  lo que puede llegar a ser la labor de quienes incursionan en las ciencias del lenguaje, señalando los avatares que se recorren cuando se asume la importante tarea de investigar.

  8. Métodos de investigación lingüística

    OpenAIRE

    Pardo Abril Neyla Graciela

    2010-01-01

    Tras tan sugestivo título, el libro del profesor Humberto López Morales - catedrático de lingüística en la Universidad de Puerto Rico y de múltiples universidades norteamericanas y europeas, así como incansable y prolifero investigador - presenta una fascinante faceta de  lo que puede llegar a ser la labor de quienes incursionan en las ciencias del lenguaje, señalando los avatares que se recorren cuando se asume la importante tarea de investigar.

  9. Lingüística textual: quo vadis? Textlinguistics: quo vadis?

    Directory of Open Access Journals (Sweden)

    Ingedore Grunfeld Villaça Koch

    2001-01-01

    Full Text Available Este artigo tem por objetivo discutir o futuro -- e a própria sobrevivência -- da Lingüística Textual neste milênio e os desafios que terá de enfrentar para contribuir para o desenvolvimento das Ciências Humanas numa nova era.This paper aims to discuss the future -- and the proper survival of Textlinguistics this millenium, and the challenges it has to face in order to contribute to the development of Human Sciences in a new era.

  10. La norma lingüística como convención social

    OpenAIRE

    2001-01-01

    Emilio Lorenzo, miembro de la RAE, ex profesor de lengua española en EE. UU. y especialista en los anglicismos en nuestra lengua, recoge en este libro una serie de trabajos escritos durante los últimos quince años, casi todos publicados en revistas de lingüística o en el diario español ABC. En la obra se abordan temas diversos relacionados con la situación actual del español, sus tendencias y sus problemas, enfocados desde una visión optimista de la lengua.

  11. Acerca de la transferencia lingüística en el castellano andino

    Directory of Open Access Journals (Sweden)

    Jorge Esquivel Villafana

    2011-07-01

    Full Text Available La coexistencia de códigos lingüísticos de comunicación dentro de unamisma área territorial deviene en un tipo de bilingüismo donde el manejode la segunda lengua testimonia las pautas estructurales que imponela lengua materna. Los términos empleados para caracterizar estefenómeno se han sucedido con mucha o poca suerte, con mayor o menoradecuación empírica. El presente artículo se propone presentar unarevisión de ellos, con especial referencia al concepto de transferencia.Palabras claves: Sintaxis, castellano andino.

  12. Aspectos comunicativos y lingüísticos en dos fiestas del estado de Guanajuato

    Directory of Open Access Journals (Sweden)

    Lastra Yolanda

    2000-06-01

    Full Text Available

    En este trabajo se lleva a cabo una descripción etnográfica en la que se recogen elementos lingüísticos de dos fiestas patronales mexicanas que tienen lugar en las localidades de Cruz del Palmar, Municipios de San Miguel de Allende y San Luis de la Paz, dos poblaciones del estado de Guanajuato. Se analizan eventos comunicativos que dan cuenta de la escogencia de la lengua en relación con contextos específicos.

  13. Aspectos comunicativos y lingüísticos en dos fiestas del estado de Guanajuato

    OpenAIRE

    Lastra Yolanda

    2000-01-01

    En este trabajo se lleva a cabo una descripción etnográfica en la que se recogen elementos lingüísticos de dos fiestas patronales mexicanas que tienen lugar en las localidades de Cruz del Palmar, Municipios de San Miguel de Allende y San Luis de la Paz, dos poblaciones del estado de Guanajuato. Se analizan eventos comunicativos que dan cuenta de la escogencia de la lengua en relación con contextos específicos.

  14. Actitudes lingüísticas de los hablantes de Managua, Nicaragua

    OpenAIRE

    Zobeyda Catalina Zamora Úbeda

    2014-01-01

    Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de Managua, hacia al español de Nicaragua y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN). La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 4...

  15. Actitudes lingüísticas en Ecuador. Una tradición normativa que subsiste

    OpenAIRE

    Esthela Flores Mejía

    2014-01-01

    Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de Quito, hacia al español del Ecuador y hacia el español de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America), financiado por El Consejo Noruego de Investigación (RCN). La recolección de los datos se realizó en la capital del país, entrevistando una muestra de 395 ...

  16. Actitudes lingüísticas de los hablantes de San Salvador, El Salvador

    OpenAIRE

    Erick Rivera Orellana

    2014-01-01

    Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de San Salvador hacia al español de El Salvador y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America), financiado por El Consejo Noruego de Investigación (RCN). La recolección de los datos se realizó en la capital del país, entrevistando a una muest...

  17. Lingüística clínica y lenguaje infantil

    OpenAIRE

    Fernández Pérez, Milagros

    2006-01-01

    Achega ao: "XXXV Simposio Internacional de la Sociedad Española de Lingüística. León, 12-15 de diciembre de 2005" En el trabajo se dan claves para abordar en su calidad comunicativa el lenguaje peculiar Ministerio de Educación y Ciencia (HUM2004-05847-C02-01/FILO) Ministerio de Ciencia y Tecnología (BFF2001-3234-CO2-01)Xunta de Galicia (XUGA 20402A97) y (PGIDT00PXI20401PR)

  18. Las variedades lingüísticas del español y su traducción. Estudio lingüístico comparativo de Toy Story (1995)

    OpenAIRE

    Ramos Rosales, Juan Jesús

    2016-01-01

    El español es una lengua muy rica y plural. El presente trabajo comienza con un estudio de las variedades lingüísticas, además de un estudio de las diferentes variedades geolectales del español en los diferentes espacios donde podemos encontrar nuestra lengua: España, América, África y Asia. A continuación, se presenta un estudio teórico sobre la traducción de variedades lingüísticas: los ámbitos en los que es necesario realizar este tipo de traducciones, las dificultades que conllevan, los d...

  19. Internet y los recursos lingüísticos para la lengua española : diccionarios y corpus

    Directory of Open Access Journals (Sweden)

    Polonca Kocjančič

    2009-12-01

    Full Text Available Las obras de referencia y los diversos recursos lingüísticos conforman un nexo de unión entre una lengua en su totalidad y el usuario que busca información sobre cualquier aspecto de la lengua que emplea, sea materna o extranjera. Las nuevas tecnologías han abierto un universo nuevo y representan un elemento que hay que considerar en la difusión de la información lingüística, con algunos recursos bien conocidos y otros nuevos, que investigan enfoques alternativos de la organización de la información lingüística.

  20. Simulation of Quiet-Sun Hard X-rays Related to Solar Wind Superhalo Electrons

    CERN Document Server

    Wang, Wen; Krucker, Sam; Hannah, Iain

    2016-01-01

    In this paper, we propose that the accelerated electrons in the quiet Sun could collide with the solar atmosphere to emit Hard X-rays (HXRs) via non-thermal bremsstrahlung, while some of these electrons would move upwards and escape into the interplanetary medium, to form a superhalo electron population measured in the solar wind. After considering the electron energy loss due to Coulomb collisions and the ambipolar electrostatic potential, we find that the sources of the superhalo could only occur high in the corona (at a heliocentric altitude $\\gtrsim 1.9$ R$_\\odot$ (the mean radius of the Sun)), to remain a power-law shape of electron spectrum as observed by STEREO at 1AU near solar minimum (Wang et al., 2012). The modeled quiet-Sun HXRs related to the superhalo electrons fit well to a power-law spectrum, $f \\sim \\varepsilon^{-\\gamma}$, with an index $\\gamma$ $\\approx$ 2.0 - 2.3 (3.3 - 3.7) at 10 - 100 keV, for the warm/cold thick-target (thin-target) emissions produced by the downward-traveling (upward-tr...

  1. Retraction Statement: 'MicroRNA-218 increases cellular sensitivity to Rapamycin via targeting Rictor in cervical cancer' by Li J, Wang J, Wang Y, Qiu H.

    Science.gov (United States)

    2017-02-01

    The above article from APMIS, published online on 24 April 2015 in Wiley Online Library (wileyonlinelibrary.com) and in Volume 123, pp. 562-570, has been retracted by agreement between the authors, the journal Editors in Chief, Professors Bodil Norrild, Ben Vainer and Elisabeth Ralfkiaer, and John Wiley & Sons Ltd. The article has been retracted due to errors in the reported results. In this study, the authors used HeLa and SiHa cell lines to investigate the biological roles of miR-218. However, subsequently it emerged that the two cell lines were contaminated in the laboratory by other unknown cell lines. When repeating the experiments, it was found that the functions of miR-218 were not as significant as had been previously reported, especially its effects on rapamycin sensitivity. Reference Li J, Li X, Wang J, Wang Y, Qiu H. MicroRNA-218 increases cellular sensitivity to Rapamycin via targeting Rictor in cervical cancer. APMIS 2015; 123:562-570. doi: 10.1111/apm.12387.

  2. Teoría y aplicación. El estatuto disciplinar de la Planificación lingüística

    OpenAIRE

    Fernández Pérez, Milagros

    1994-01-01

    El trabajo define el ámbito de la Planificación lingüística. Se ubica en la esfera de la Lingüística aplicada y se establecen distinciones respecto de áreas cercanas como la Sociología del lenguaje y la Sociolingüística

  3. Forgeability of Wang-Zhu-Feng-Yau's Attribute-Based Signature with Policy-and-Endorsement Mechanism

    Institute of Scientific and Technical Information of China (English)

    Ai-Jun Ge; Xin-Yi Huang; Cheng Chen; Chuan-Gui Ma; Rui Zhang

    2013-01-01

    Recently,Wang et al.presented a new construction of attribute-based signature with policy-and-endorsement mechanism.The existential unforgeability of their scheme was claimed to be based on the strong Diffie-Hellman assumption in the random oracle model.Unfortunately,by carefully revisiting the design and security proof of Wang et al.'s scheme,we show that their scheme cannot provide unforgeability,namely,a forger,whose attributes do not satisfy a given signing predicate,can also generate valid signatures.We also point out the flaws in Wang et al.'s proof.

  4. Micro technology based sun sensor

    DEFF Research Database (Denmark)

    Hales, Jan Harry; Pedersen, Martin; Fléron, René

    2003-01-01

    There is increasing interest among universities in the scientific and educational possibilities of picosatellites base on the CubeSat 5 concept. Due to sever mass and dimension constraints place on this type of satellites, new approaches and ideas regarding different systems arises to accommodate...... DTUsat sun sensors are needed along with a magnetometer to obtain unambiguous attitude determination for the ACDS and the payloads - an electrodynamic tether and a camera. The accuracy needed was not obtainable by employing conventional attitude sensors. Hence a linear slit sensor was designed...

  5. Trastornos motores y trastornos del lenguaje: una perspectiva desde la lingüística clínica

    OpenAIRE

    Sánchez Batista, Irene

    2014-01-01

    Este trabajo de investigación constituye una revisión y recopilación mediante la metodología de la Lingüística clínica de las características lingüísticas que presentan seis trastornos motores (enfermedad de Parkinson, enfermedad de Huntington, distonía, parálisis supranuclear progresiva, síndrome de Guilles de Tourette y síndrome de Shy-Drager) estableciéndose una relación entre los trastornos motores y los trastornos del lenguaje.

  6. El concepto de prestigio y la norma lingüística del español

    OpenAIRE

    Lope Blanch, Juan M.; Centro de Lingüística Hispánica, IIFL, UNAM

    2013-01-01

    En otro estudio, al comentar la generalizada suposición de que el español americano se caracteriza por su profundo arcaísmo, aludí al factor "prestigio lingüístico", sobre el cual descansa la autoridad y fuerza expansiva de cualquier norma idiomática. Quisiera exponer aquí algunas rápidas consideraciones en torno a ese concepto de prestigio, que tan profunda repercusión alcanza en la determinación de la importancia de una norma lingüística dada. En aquel trabajo, escribí lo siguiente: "De man...

  7. La investigación lingüística desde la filosofía de la ciencia

    OpenAIRE

    1986-01-01

    En el libro se abordan requisitos epistemológicos cruciales para desarrollar investigaciones científicas en el campo de la Lingüística. Nociones de arquitectura interna de la investigación como 'ciencia', 'teoría', 'modelo', 'método','descripción', 'contrastación', y unidades histórico-sociales de visualización externa como 'paradigma', 'programa de investigación', 'escuela', se toman en cuenta para estimar su peso en la esfera de las pesquisas lingüísticas. Sobre bases de filosofía de la cie...

  8. Una mirada a las contradicciones de la revitalización lingüística en el Cauca

    OpenAIRE

    Esteban Díaz Montenegro

    2012-01-01

    Este ensayo busca problematizar los puntos teóricos clave acerca de la revitalización lingüística y la educación bilingüe para comunidades que se reconocen como indígenas en el departamento del Cauca. Para esto se hace una breve revisión de algunos conceptos y posibles marcos de análisis para un programa crítico de discusión de la revitalización lingüística como propuesta académica y política.

  9. Tension conceptual entre "aplicacion" y ''lingüisticidad" en la hermeneutica filosofica de H.G Gadamer.

    OpenAIRE

    1989-01-01

    Al modo como Gadamer desarrolla la "tensión" existente entre método y verdad, este artículo pretende desarrollar la tensión entre dos conceptos centrales de la hermenéutica gadameriana: 'aplicación' y 'lingüisticidad'(Sprachlichkeil). La naturaleza práctica, siempre particular y situada, de la comprensión es confrontada con la consideración del lenguaje como medio universal del comprender, en tanto instaura un 'acuerdo previo', un 'diálogo efectivo', en toda comunidad lingüística. Sin embargo...

  10. Racionalismo y empirismo en la lingüística del siglo XVII: Port-Royal y Wilkins

    OpenAIRE

    1981-01-01

    La investigación trata sobre las teorías lingüísticas del siglo XVII en Europa Occidental, que se basan tanto en las contribuciones empiristas hechas por la obra de John Wilkins, An Essay towards a Real Character and a Philosophical Language (1668) como en las contribuciones racionalistas de la Gramática de Port-Royal (1660). El estudio expone el contenido de dichas obras y su relación con las tendencias de la Lingüística actual.ENGLISH

  11. Vice President Wang Jie Meets with CEO of Academy of Malaysia

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Prof. WangJie, Vice President of NSFCmet with Prof. Ahmadlbrahim, CEO of Academy of Malay- sia (ASM) on l)ecember 5th, 2012. Prof. Wang extended his welcome to the guest, reviewed the exchan- ges and communications during the IIASA Council Meeting and introduced about China's S~,.T system . Prof. Zou l.iyao, Deputy Director General of Bureau of International Cooperation gavea briefing on NSFC and its international cooperation. Prof. Ahmad showed great interest in that and indicated Malaysia is also considering setting up its own science foundation. Apart from thal, the two sides held discussions on the channel for Chinese and Malaysian scientists to cooperate and other S&-T issues of common concern.

  12. [Experience summary of professor WANG Fuchun's "Zhenjing Anshen" acupuncture method for insomnia].

    Science.gov (United States)

    Li, Tie; Ha, Lijuan; Cao, Fang; Zhi, Mujun; Wang, Fuchun

    2015-11-01

    The experience of "Zhenjing Anshen" acupuncture method originally created by professor WANG Fuchun for treatment of insomnia was introduced in this paper. From aspects of insomnia pathogenesis, theoretical foundation, characteristics of acupoint selection, needing methods, needing time, etc., the experience of Professor WANG Fuchun for treatment of insomnia was explained. The "Zhenjing Anshen" acupuncture method proposed, for the first time, "new three layers" method of acupoint selection, including Sishencong (EX-HN 1), Shenmen (HT 7), Sanyinjiao (SP 6). This method presents the principles of acupoint selection along meridian, acupoint selection based on essence-qi-spirit, harmony of yin and yang. The acupuncture manipulation is emphasized, and treating time (the period of the day from 3 pm to 5 pm) is focused on; acupoint selection is simple but essential, and acupoint combination is scientific, which receives notable therapeutic effect in clinic.

  13. Wang-Landau molecular dynamics technique to search for low-energy conformational space of proteins

    CERN Document Server

    Nagasima, Takehiro; Mitsui, Takashi; Nishikawa, Ken-Ichi

    2007-01-01

    Multicanonical molecular dynamics (MD) is a powerful technique for sampling conformations on rugged potential surfaces such as protein. However, it is notoriously difficult to estimate the multicanonical temperature effectively. Wang and Landau developed a convenient method for estimating the density of states based on a multicanonical Monte Carlo method. In their method, the density of states is calculated autonomously during a simulation. In this paper we develop a set of techniques to effectively apply the Wang-Landau method to MD simulations. In the multicanonical MD, the estimation of the derivative of the density of states is critical. In order to estimate it accurately, we devise two original improvements. First, the correction for the density of states is made smooth by using the Gaussian distribution obtained by a short canonical simulation. Second, an approximation is applied to the derivative, which is based on the Gaussian distribution and the multiple weighted histogram technique. A test of this ...

  14. Appraisement and criticism of Hai Ling%是是非非话海龄

    Institute of Scientific and Technical Information of China (English)

    孙洪军

    2015-01-01

    Hai Ling was one of the leaders in Zhenjiang Safeguard Battle in the Opium War.He fought bravely and eventually sacrificed his life for our country.He was our nation's famous general to defeat the foreign invasion.On the other hand,he slaughtered people and offended officeholder and business people,and so he was censured by others.The conflicting appraisement of Hai Ling lies in the era limitation of the class and nation.%海龄是鸦片战争时期镇江保卫战的主要指挥者之一。他作战勇敢,以身殉国,是反抗外敌入侵的知名抗战派将领。海龄又屠杀群众,得罪官绅商民,受到多方责难。形成这种矛盾性评价的根源,在于海龄所属阶级与民族的时代局限性。

  15. Oportunidades para la ingeniería lingüística

    Directory of Open Access Journals (Sweden)

    Piek Vossen

    2001-12-01

    Full Text Available Internet es comunicación e información. No es un simple proveedor de datos, sino que también implica una auténtica necesidad de información. En otras palabras, existe una necesidad cada vez mayor de digerir cantidades ingentes de información, buena parte de la cual se encuentra almacenada en forma de texto. Este artículo describe las oportunidades que ofrece la ingeniería lingüística para desarrollar productos de alta calidad aplicables a la sociedad de la información. Se propone un modelo general que sirva para tratar las diferentes etapas del análisis, almacenamiento y acceso a la información, y se ofrece un análisis de estas etapas con relación a los sistemas más utilizados hoy en día. No se trata de una lista exhaustiva de posibilidades y soluciones. Tampoco está completamente actualizada, ni pretende estarlo. La tecnología se desarrolla a gran velocidad y cualquier intento de cubrir un campo determinado ya ha quedado obsoleto en el momento de su publicación. En lugar de eso, el autor quiere ofrecer una perspectiva sobre los principales desarrollos actuales y tratar de contagiar al lector el interés por el presente y el futuro de la ingeniería lingüística.

  16. Analysis of Thunderstorm (Act Ⅲ)——A Translation by Wang Zuoliang

    Institute of Scientific and Technical Information of China (English)

    康丛凌

    2008-01-01

    @@ Ⅰ. Introduction Thunderstorm written by Cao Yu in 1934 is a masterpiece in the history of Chinese literature. This drama depicts the love and hate between eight people, reflecting a tragic scene of the decline of a rich family in the feudal society. As a splendid treasure of Chinese literature,Thunderstorm was translated into English in 1958 by Wang Zuoliang and A. C. Barnes whose translation is regarded as a great work in the perspective of translating practice.

  17. Wang-Landau sampling in face-centered-cubic hydrophobic-hydrophilic lattice model proteins.

    Science.gov (United States)

    Liu, Jingfa; Song, Beibei; Yao, Yonglei; Xue, Yu; Liu, Wenjie; Liu, Zhaoxia

    2014-10-01

    Finding the global minimum-energy structure is one of the main problems of protein structure prediction. The face-centered-cubic (fcc) hydrophobic-hydrophilic (HP) lattice model can reach high approximation ratios of real protein structures, so the fcc lattice model is a good choice to predict the protein structures. The lacking of an effective global optimization method is the key obstacle in solving this problem. The Wang-Landau sampling method is especially useful for complex systems with a rough energy landscape and has been successfully applied to solving many optimization problems. We apply the improved Wang-Landau (IWL) sampling method, which incorporates the generation of an initial conformation based on the greedy strategy and the neighborhood strategy based on pull moves into the Wang-Landau sampling method to predict the protein structures on the fcc HP lattice model. Unlike conventional Monte Carlo simulations that generate a probability distribution at a given temperature, the Wang-Landau sampling method can estimate the density of states accurately via a random walk, which produces a flat histogram in energy space. We test 12 general benchmark instances on both two-dimensional and three-dimensional (3D) fcc HP lattice models. The lowest energies by the IWL sampling method are as good as or better than those of other methods in the literature for all instances. We then test five sets of larger-scale instances, denoted by the S, R, F90, F180, and CASP target instances on the 3D fcc HP lattice model. The numerical results show that our algorithm performs better than the other five methods in the literature on both the lowest energies and the average lowest energies in all runs. The IWL sampling method turns out to be a powerful tool to study the structure prediction of the fcc HP lattice model proteins.

  18. Exploring new frontiers in statistical physics with a new, parallel Wang-Landau framework

    CERN Document Server

    Vogel, Thomas; Wüst, Thomas; Landau, David P

    2013-01-01

    Combining traditional Wang-Landau sampling for multiple replica systems with an exchange of densities of states between replicas, we describe a general framework for simulations on massively parallel Petaflop supercomputers. The advantages and general applicability of the method for simulations of complex systems are demonstrated for the classical 2D Potts spin model featuring a strong first-order transition and the self-assembly of lipid bilayers in amphiphilic solutions in a continuous model.

  19. Exploring new frontiers in statistical physics with a new, parallel Wang-Landau framework

    Science.gov (United States)

    Vogel, Thomas; Li, Ying Wai; Wüst, Thomas; Landau, David P.

    2014-03-01

    Combining traditional Wang-Landau sampling for multiple replica systems with an exchange of densities of states between replicas, we describe a general framework for simulations on massively parallel Petaflop supercomputers. The advantages and general applicability of the method for simulations of complex systems are demonstrated for the classical 2D Potts spin model featuring a strong first-order transition and the self-assembly of lipid bilayers in amphiphilic solutions in a continuous model.

  20. A generic, hierarchical framework for massively parallel Wang-Landau sampling

    CERN Document Server

    Vogel, Thomas; Wüst, Thomas; Landau, David P

    2013-01-01

    We introduce a parallel Wang-Landau method based on the replica-exchange framework for Monte Carlo simulations. To demonstrate its advantages and general applicability for simulations of complex systems, we apply it to different spin models including spin glasses, the Ising model and the Potts model, lattice protein adsorption, and the self-assembly process in amphiphilic solutions. Without loss of accuracy, the method gives significant speed-up and potentially scales up to petaflop machines.

  1. Becoming an International Scientist in South Korea: Ho Wang Lee's Research Activity about Epidemic Hemorrhagic Fever.

    Science.gov (United States)

    Shin, Miyoung

    2017-04-01

    In the 1960-70s, South Korea was still in the position of a science latecomer. Although the scientific research environment in South Korea at that time was insufficient, there was a scientist who achieved outcomes that could be recognized internationally while acting in South Korea. He was Ho Wang Lee(1928~ ) who found Hantann Virus that causes epidemic hemorrhagic fever for the first time in the world. It became a clue to identify causative viruses of hemorrhagic diseases that were scattered here and there throughout the world. In addition, these outcomes put Ho Wang Lee on the global center of research into epidemic hemorrhagic fever. This paper examines how a Korean scientist who was in the periphery of virology could go into the central area of virology. Also this article shows the process through which the virus found by Ho Wang Lee was registered with the international academia and he proceeded with follow-up research based on this progress to reach the level at which he generalized epidemic hemorrhagic fever related studies throughout the world. While he was conducting the studies, experimental methods that he had never experienced encountered him as new difficulties. He tried to solve the new difficulties faced in his changed status through devices of cooperation and connection. Ho Wang Lee's growth as a researcher can be seen as well as a view of a researcher that grew from a regional level to an international level and could advance from the area of non-mainstream into the mainstream. This analytic tool is meaningful in that it can be another method of examining the growth process of scientists in South Korea or developing countries.

  2. Exploring new frontiers in statistical physics with a new, parallel Wang-Landau framework

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, Thomas [University of Georgia, Athens, GA; Li, Ying Wai [ORNL; Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Landau, David P [University of Georgia, Athens, GA

    2014-01-01

    Combining traditional Wang Landau sampling for multiple replica systems with an exchange of densities of states between replicas we describe a general framework for simulations on massively parallel Petaflop supercomputers. The advantages and general applicability of the method for simulations of complex systems are demonstrated for the classical 2D Potts spin model featuring a strong first-order transition and the self-assembly of lipid bilayers in amphiphilic solutions in a continuous model.

  3. Highly parallel computational study of amphiphilic molecules using the Wang--Landau method

    Science.gov (United States)

    Vogel, Thomas; Landau, David

    2012-02-01

    The self-assembly process in amphiphilic solutions is a phenomenon of broad interest. Molecular dynamics simulations generally used to study micelle formation or lipid layer assembly in an explicit solvent are limited in time scale. Vast studies of structure formation processes via standard Markov-chain based Monte Carlo simulations are challenging, but the Wang--Landau method [1] provides a way to efficiently study such systems in a generalized thermodynamic ensemble. This makes it possible, for example, to get results over a broad temperature range from a single simulation. In an attempt to develop highly parallel applications using this method, we study the thermodynamic behavior of a generic coarse-grained model for amphiphilic molecules [2] as well as of a new coarse-grained lipid model specifically designed for dimyristoyl phosphatidylcholine (DMPC) [3]. Here, we focus on the design and the performance of our parallel Wang--Landau simulation on multi-CPU and GPU systems.[4pt] [1] F. Wang and D.P. Landau, Phys. Rev. Lett. 86, 2050 (2001)[0pt] [2] S. Fujiwara et al., J. Chem. Phys. 130, 144901 (2009)[0pt] [3] W. Shinoda et al., J. Phys. Chem. B 114, 6836 (2010)

  4. Exploring Replica-Exchange Wang-Landau sampling in higher-dimensional parameter space

    Science.gov (United States)

    Valentim, Alexandra; Rocha, Julio C. S.; Tsai, Shan-Ho; Li, Ying Wai; Eisenbach, Markus; Fiore, Carlos E.; Landau, David P.

    2015-09-01

    We considered a higher-dimensional extension for the replica-exchange Wang- Landau algorithm to perform a random walk in the energy and magnetization space of the two-dimensional Ising model. This hybrid scheme combines the advantages of Wang-Landau and Replica-Exchange algorithms, and the one-dimensional version of this approach has been shown to be very efficient and to scale well, up to several thousands of computing cores. This approach allows us to split the parameter space of the system to be simulated into several pieces and still perform a random walk over the entire parameter range, ensuring the ergodicity of the simulation. Previous work, in which a similar scheme of parallel simulation was implemented without using replica exchange and with a different way to combine the result from the pieces, led to discontinuities in the final density of states over the entire range of parameters. From our simulations, it appears that the replica-exchange Wang-Landau algorithm is able to overcome this difficulty, allowing exploration of higher parameter phase space by keeping track of the joint density of states.

  5. Exploring Replica-Exchange Wang-Landau sampling in higher-dimensional parameter space

    Energy Technology Data Exchange (ETDEWEB)

    Valentim, Alexandra [University of Georgia, Athens, GA; Rocha, Julio C. S. [Universidade Federal de Minas Gerais; Tsai, Shan-Ho [University of Georgia, Athens, GA; Li, Ying Wai [ORNL; Eisenbach, Markus [ORNL; Fiore, Carlos E [University of Sao Paulo, BRAZIL; Landau, David P [University of Georgia, Athens, GA

    2015-01-01

    We considered a higher-dimensional extension for the replica-exchange Wang-Landau algorithm to perform a random walk in the energy and magnetization space of the two-dimensional Ising model. This hybrid scheme combines the advantages of Wang-Landau and Replica-Exchange algorithms, and the one-dimensional version of this approach has been shown to be very efficient and to scale well, up to several thousands of computing cores. This approach allows us to split the parameter space of the system to be simulated into several pieces and still perform a random walk over the entire parameter range, ensuring the ergodicity of the simulation. Previous work, in which a similar scheme of parallel simulation was implemented without using replica exchange and with a different way to combine the result from the pieces, led to discontinuities in the final density of states over the entire range of parameters. From our simulations, it appears that the replica-exchange Wang-Landau algorithm is able to overcome this diculty, allowing exploration of higher parameter phase space by keeping track of the joint density of states.

  6. Exploring Replica-Exchange Wang-Landau sampling in higher-dimensional parameter space

    CERN Document Server

    Valentim, Alexandra; Tsai, Shan-Ho; Li, Ying Wai; Eisenbach, Markus; Fiore, Carlos E; Landau, David P

    2015-01-01

    We considered a higher-dimensional extension for the replica-exchange Wang-Landau algorithm to perform a random walk in the energy and magnetization space of the two-dimensional Ising model. This hybrid scheme combines the advantages of Wang-Landau and Replica-Exchange algorithms, and the one-dimensional version of this approach has been shown to be very efficient and to scale well, up to several thousands of computing cores. This approach allows us to split the parameter space of the system to be simulated into several pieces and still perform a random walk over the entire parameter range, ensuring the ergodicity of the simulation. Previous work, in which a similar scheme of parallel simulation was implemented without using replica exchange and with a different way to combine the result from the pieces, led to discontinuities in the final density of states over the entire range of parameters. From our simulations, it appears that the replica-exchange Wang-Landau algorithm is able to overcome this difficulty,...

  7. Dynamical traps in Wang-Landau sampling of continuous systems: Mechanism and solution.

    Science.gov (United States)

    Koh, Yang Wei; Sim, Adelene Y L; Lee, Hwee Kuan

    2015-08-01

    We study the mechanism behind dynamical trappings experienced during Wang-Landau sampling of continuous systems reported by several authors. Trapping is caused by the random walker coming close to a local energy extremum, although the mechanism is different from that of the critical slowing-down encountered in conventional molecular dynamics or Monte Carlo simulations. When trapped, the random walker misses the entire or even several stages of Wang-Landau modification factor reduction, leading to inadequate sampling of the configuration space and a rough density of states, even though the modification factor has been reduced to very small values. Trapping is dependent on specific systems, the choice of energy bins, and the Monte Carlo step size, making it highly unpredictable. A general, simple, and effective solution is proposed where the configurations of multiple parallel Wang-Landau trajectories are interswapped to prevent trapping. We also explain why swapping frees the random walker from such traps. The efficacy of the proposed algorithm is demonstrated.

  8. Actitudes lingüísticas en México. Entre el chovinismo y el malinchismo

    Directory of Open Access Journals (Sweden)

    Sonia Morett

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la Ciudad de México, hacia al español del país y el de los otros países hispanohablantes. El artículo hace parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando una muestra de 400 informantes previamente estratificada con las variables de edad, sexo y nivel socioeconómico sobre sus preferencias y opiniones de las variantes dialectales mexicanas y del mundo hispanohablante. El análisis identifica factores lingüísticos y extralingüísticos que devienen en percepciones cognitivas y actitudes afectivas de orgullo, aceptación, rechazo y estigmatización. Se dedicó especial atención a las creencias sobre la corrección lingüística y al rol de los medios de comunicación en la propagación de estereotipos. En relación con investigaciones precedentes, la española y la mexicana se mantuvieron como las variantes más prestigiosas, aunque en varios aspectos se registró una mayor autoestima lingüística y, al mismo tiempo, una creciente conciencia y aceptación hacia la diversidad intralingüística y cultural, especialmente hacia las hablas de otros países hispanohablantes. Se concluye que las creencias sobre los grupos sociales se encuentran en la base de las actitudes lingüísticas, antes que los criterios inherentes al lenguaje. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from Mexico City, towards Spanish spoken in the country, and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway. The data were gathered in the capital of the country, interviewing a stratified sample of 400

  9. La lingüística cognitiva y la lingüística aplicada a una ciencia para la comunicación transdisciplinar

    Directory of Open Access Journals (Sweden)

    Flor Ángela Tobón Marulanda

    Full Text Available Se presentan los resultados de una investigación cualitativa hermenéutica sobre la lingüística cognitiva y la lingüística aplicada, relacionadas con otras ciencias en un contexto específico de la comunidad científica especializada. Desde una visión integral y holística de las ciencias biomédicas y humanas, asimismo, se estudian los lenguajes técnico-científicos de la ciencia y de la tecnología para facilitar la interrelación cognitiva entre las diferentes disciplinas. Este estudio permite crear capacidades para evaluar el acervo léxico en contexto, útil para la transmisión y la transformación del conocimiento en un lenguaje propio acorde a la exigencia del método científico. El objetivo consistió en indagar sobre la relación de la unidad léxica con su nexo cognitivo a una unidad terminológica de uso cotidiano en la información y en la comunicación académica de la práctica médico-legal forense. Los resultados establecen diferencia y precisan cierta comprensión de la significación de unidades léxicas ambiguas de mayor relevancia y frecuencia, utilizadas en este ámbito del conocimiento, en cuatro categorías de análisis; según las características propias de la disciplina en dialogo con otras ciencias en contexto. Se evidencia la importancia de educar durante el proceso enseñanza-aprendizaje significativo de la disciplina en contexto, desde la metalingüística del objeto de estudio dimensionado y relacionado con otros objetos de estudio, que permita el proceso cognitivo del lenguaje técnico-científico transdisciplinar, la apropiación social y la circulación del conocimiento aplicado a las prácticas médico legales integrales en relación entre la Psicofarmacología, la Psiquiatría, la Antropología y la Psicología, con las ciencias biomédicas y humanas.

  10. Solar flare leaves sun quaking

    Science.gov (United States)

    1998-05-01

    Dr. Alexander G. Kosovichev, a senior research scientist from Stanford University, and Dr. Valentina V. Zharkova from Glasgow (United Kingdom) University found the tell-tale seismic signature in data on the Sun's surface collected by the Michelson Doppler Imager onboard the Solar and Heliospheric Observatory (SOHO) spacecraft immediately following a moderate-sized flare on July 9, 1996. "Although the flare was a moderate one, it still released an immense amount of energy," said Dr. Craig Deforest, a researcher with the SOHO project. "The energy released is equal to completely covering the Earth's continents with a yard of dynamite and detonating it all at once." SOHO is a joint project of the European Space Agency and NASA. The finding is reported in the May 28 issue of the journal Nature, and is the subject of a press conference at the spring meeting of the American Geophysical Union in Boston, Mass., May 27. The solar quake that the science team recorded looks much like ripples spreading from a rock dropped into a pool of water. But over the course of an hour, the solar waves traveled for a distance equal to 10 Earth diameters before fading into the fiery background of the Sun's photosphere. Unlike water ripples that travel outward at a constant velocity, the solar waves accelerated from an initial speed of 22,000 miles per hour to a maximum of 250,000 miles per hour before disappearing. "People have looked for evidence of seismic waves from flares before, but they didn't have a theory so they didn't know where to look," says Kosovichev. Several years ago Kosovichev and Zharkova developed a theory that can explain how a flare, which explodes in space above the Sun's surface, can generate a major seismic wave in the Sun's interior. According to the currently accepted model of solar flares, the primary explosion creates high-energy electrons (electrically charged subatomic particles). These are funneled down into a magnetic flux tube, an invisible tube of magnetic

  11. Seismology of the Wounded Sun

    CERN Document Server

    Cally, Paul S

    2013-01-01

    Active regions are open wounds in the Sun's surface. Seismic oscillations from the interior pass through them into the atmosphere, changing their nature in the process to fast and slow magneto-acoustic waves. The fast waves then partially reflect and partially mode convert to upgoing and downgoing Alfv\\'en waves. The reflected fast and downgoing Alfv\\'en waves then re-enter the interior through the active regions that spawned them, infecting the surface seismology with signatures of the atmosphere. Using numerical simulations of waves in uniform magnetic fields, we calculate the upward acoustic and Alfv\\'enic losses in the atmosphere as functions of field inclination and wave orientation as well as the Time-Distance `travel time' perturbations, and show that they are related. Travel time perturbations relative to quiet Sun can exceed 40 seconds in 1 kG magnetic field. It is concluded that active region seismology is indeed significantly infected by waves leaving and re-entering the interior through magnetic w...

  12. Lenguas primeras y segundas en el contexto lingüístico valenciano. El uso de conceptos y concepciones lingüísticas por parte de estudiantes de Magisterio, a partir de sus autobiografías lingüísticas

    OpenAIRE

    Bataller Català, Alexandre

    2011-01-01

    En el marco de un proyecto de investigación centrado en la percepción de la realidad multilingüe y la educación plurilingüe que reciben alumnos de distintos niveles educativos, tomamos como punto de partida las autobiografías lingüísticas escritas por un grupo de alumnos de 2º de Magisterio de la Universidad de Valencia. Los relatos recogidos son historias de vida lingüística donde los futuros maestros reflexionan sobre las lenguas que conocen y sobre el que ha sido su proceso de aprendizaje....

  13. The Sun's New Exotic Neighbour

    Science.gov (United States)

    2006-03-01

    Using ESO's Very Large Telescope in Chile, an international team of researchers [1] discovered a brown dwarf belonging to the 24th closest stellar system to the Sun. Brown dwarfs are intermediate objects that are neither stars nor planets. This object is the third closest brown dwarf to the Earth yet discovered, and one of the coolest, having a temperature of about 750 degrees Celsius. It orbits a very small star at about 4.5 times the mean distance between the Earth and the Sun. Its mass is estimated to be somewhere between 9 and 65 times the mass of Jupiter. At a time when astronomers are peering into the most distant Universe, looking at objects as far as 13 billion light-years away, one may think that our close neighbourhood would be very well known. Not so. Astronomers still find new star-like objects in our immediate vicinity. Using ESO's VLT, they just discovered a brown dwarf companion to the red star SCR 1845-6357, the 36th closest star to the Sun. ESO PR Photo 11/06 ESO PR Photo 11a/06 New Brown Dwarf in the Solar Neighbourhood (Artist's Impression) "This newly found brown dwarf is a valuable object because its distance is well known, allowing us to determine with precision its intrinsic brightness", said team member Markus Kasper (ESO). "Moreover, from its orbital motion, we should be able in a few years to estimate its mass. These properties are vital for understanding the nature of brown dwarfs." To discover this brown dwarf, the team used the high-contrast adaptive optics NACO Simultaneous Differential Imager (SDI [2]) on ESO's Very Large Telescope, an instrument specifically developed to search for extrasolar planets. The SDI camera enhances the ability of the VLT and its adaptive optics system to detect faint companions that would normally be lost in the glare of the primary star. In particular, the SDI camera provides additional, often very useful spectral information which can be used to determine a rough temperature for the object without follow

  14. Here comes the sun...; Here comes the sun...

    Energy Technology Data Exchange (ETDEWEB)

    Best, Robert [Centro de Investigacion en Energia (CIE) de la UNAM, Temixco, Morelos (Mexico)

    2010-07-01

    It sounds a bit strange that you can use solar energy to maintain or refrigerate products or spaces below the ambient temperature, because we know that something that makes the sun is heating; but yes indeed, the sun can produce cold, and in addition without polluting, and without consuming conventional energy. In this document are mentioned the various research projects on solar cooling that have been made in the Energy Research Center at the Universidad Nacional Autonoma de Mexico such as the thermo-chemical intermittent refrigerator, the geothermal cooling demonstration system in Mexicali, B.C., the GAX system for air conditioning, the ice producer intermittent solar refrigerator, the continuous solar refrigerator, the refrigeration by ejection-compression. It also mentions the functioning of heat pumps and the process of solar drying applications in agricultural products. [Spanish] Suena un poco extrano que se pueda utilizar la energia solar para mantener o refrigerar productos o espacios por debajo de la temperatura ambiente, ya que sabemos que algo que hace el sol es calentar; pero si, el sol puede producir frio, y ademas sin contaminar y sin consumir energia convencional. En este documento se mencionan las diferentes investigaciones sobre refrigeracion solar que se han realizado en el Centro de Investigacion en Energia de la Universidad Nacional Autonoma de Mexico como el refrigerador termoquimico intermitente, el sistema demostrativo de refrigeracion geotermico en Mexicali, B.C., el sistema GAX para aire acondicionado, el refrigerador solar intermitente productor de hielo, el refrigerador continuo solar, la refrigeracion por eyecto-compresion. Tambien se menciona el funcionamiento de las bombas de calor y el proceso de secado solar de aplicacion en productos agropecuarios.

  15. into an International One——An interview with Mr. Wang Shengchang,Secretary General of CIETAC

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    2004 is a summit year for the work of international arbitration. In confonnity with the requests of domestic and international readers, we have made an exclusive interview with Mr. Wang Shengchang, PH.D in Laws, Secretary General of China International Economic and Trade Arbitration Commission. Mr. Wang has made a review and summary of the Chinese arbitration work in 2003, meanwhile, he prospects for the development of the Chinese arbitration work in 2004.

  16. The Analysis of Translator’s Subjectivity in WANG Zuo-liang’s Chinese Translation of Beauty

    Institute of Scientific and Technical Information of China (English)

    徐月燕

    2013-01-01

    WANG Zuo-liang is a famous writer and translator in china. He is best well known for his translation of Of Studies, while the research of his translated version Of Beauty and the research of translator’s subjectivity remain seldom. Therefore, this paper tries to analyze the application of translator’s subjectivity in the Chinese version of Of Beauty translated by WANG Zuo-li-ang.

  17. 研究/臺灣資訊組織與Metadata教育之研究/王梅玲 | Cataloging and Metadata Education in Taiwan Library and Information Science Programs/ Mei-Ling Wang

    Directory of Open Access Journals (Sweden)

    王梅玲

    2007-04-01

    Full Text Available

    網路時代,圖書館員需要具備專業能力以有效執行資訊組織工作及整理網路與數位資源,圖書資訊學校需因應時代變遷與圖書館期許調整資訊組織與數位資源 組織課程以培養資訊組織專家。本研究旨在探討我國資訊組織與Metadata教育現況及是否符合圖書館需求,研究目的包括:(1調查我國圖書資訊學系所 提供資訊組織課程現況。(2調查我國圖書資訊學系所提供網路與數位資源組織課程現況。(3探討Metadata課程與編目課程的關係。(4探討我國 資訊組織課程是否符合圖書館員的專業能力需求。本研究利用問卷調查輔以網站內容分析,調查我國圖書資訊學系所資訊組織課程與Metadata課程現況,並 探討Metadata與編目課程關係,以及資訊組織供應與圖書館需求之平衡。研究結果顯示臺灣9所圖書資訊學校開設22門基礎資訊組織課程、46門進階課 程、6門網路與數位資源組織課程,共74 門,平均每校開設8.2門課,其中有2門Metadata課程。

    The article mainly discusses organization of information as well as Metadata education in Taiwan. The paper presents finding of a survey on the state of cataloging and Metadata education in nine library and information science programs in Taiwan. The author sent questionnaires to nine library and information science programs, used web sites content analysis, and undertook in-depth interviews with faculties teaching organization of information courses. The survey showed there were seventy four courses on cataloging and Metadata provided, including twenty-two basic courses, forty six advanced courses, and six internet and digital information organizing courses. Among those courses, there were two Metadata courses provided by Fu-Jen Catholic University and Hsuang Chuang University. Metadata topics were well integrated into organization of information curriculum. Although educators agreed on the inclusion of specific knowledge and skills in Metadata instruction, they did not agree that it was necessary to provide Metadata courses. They also agreed that there were gaps between cataloging / Metadata education and library need for shortage of course credit hours. Some suggestions were proposed to assist education in providing students with competencies in cataloging and Metadata.

    頁次:103-122

  18. TRIGONOMETRIC SU(N) GAUDIN MODEL

    Institute of Scientific and Technical Information of China (English)

    曹俊鹏; 侯伯宇; 岳瑞宏

    2001-01-01

    In this paper, we obtain the eigenstates and the eigenvalues of the Hamiltonians of the trigonometric SU(N) Gaudin model based on the quasi-classical limit of the trigonometric SU(N) chain with the periodic boundary condition.By using the quantum inverse scattering method, we also obtain the eigenvalues of the generating function of the trigonometric SU(N) Gaudin model.

  19. The summer sun shone round me

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    The summer sun shone round me, The folded valley lay In a stream of sun and odour, That sultry summer day. The tall trees stood in the sunlight As still as still could be, But the deep grass sighed and rustled And bowed and beckoned me. The deep grass moved and whispered And bowed and brushed my face. It whis pered in the sunshine: The winter comes apdce.”The summer sun shone round me

  20. Sun awareness in Maltese secondary school students.

    Science.gov (United States)

    Aquilina, S; Gauci, A Amato; Ellul, M; Scerri, L

    2004-11-01

    Studies indicate that reducing exposure to ultraviolet light during childhood and adolescence decreases the risk of skin cancer. From a young age, children need to be educated about the sun's harmful effects on the skin and how best to protect themselves. To help in the design of school-based interventions to raise sun awareness, a school survey was carried out to identify students' stereotypes and misconceptions. A total of 965 students attending Maltese secondary schools in forms 1, 2 and 3 were surveyed in May 2002, using a structured questionnaire designed to examine students' sun-related attitudes and knowledge. A high level of sun awareness among students was demonstrated, with high scores on knowledge of the effects of the sun on the skin, knowledge of skin cancer and knowledge of sun protection. Girls were clearly more knowledgeable than boys. However, of all the students surveyed, 55% thought that a suntan made them look better and 70% thought that their friends would desire a tan. These views were commoner among the older students. Skin type and hair or eye colour had no bearing on attitudes towards tanning or sun-related knowledge. The commonest misconceptions were that 'the sun is bad for your skin only when you get sunburnt' and that 'you cannot get too much sun on a cloudy day'. Deliberate suntanning was more frequently reported by girls than by boys and by students in the higher forms. Attitude change lags behind knowledge. Future school sun awareness interventions need to take into account gender and age differences in students' attitudes and perspectives. They should aim at motivating attitude change and preventive behaviour through consistent and repeated sun-education messages that are supported by a sun-conscious school environment.

  1. Sun Jingxia Devotes Herself to Nursing Work

    Institute of Scientific and Technical Information of China (English)

    1995-01-01

    "I really didn’t expect that at my advanced age, I would be awarded the highest honor in international nursing circles," said Mme. Sun Jingxia, 81, who had just returned from Beijing where she received the Nightingale Medal. Wearing a light yellow suit, with a collar bordered in red, Sun is inhigh spirits, reminding people of the beauty of the setting sun. It is clear that Sun Jingxia has deep feelings as she looks at the medal which shows a relief of Florence Nightingale’s head. She spoke in her usual soft voice but with some excitement, "President Jiang

  2. El discurso periodístico a través de la lingüística textual

    Directory of Open Access Journals (Sweden)

    Antonio Franco M.

    2004-01-01

    Full Text Available Partiendo de una concepción funcionalista del lenguaje y considerando el texto como una unidad comunicativa (evento comunicativo,el presente artículo revisa las características del discurso periodístico a través de la lingüística textual. El modelo lingüístico comunicativo(Pottier, 1992; Molero, 1998; Franco, 2002 sirve de fundamento para la integración de diversas subfases: modelo cognitivo, modelo lingüístico-textual, modelo de contexto(VanDijk, 1990-1999, los principios constitutivos de las normas de textualidad(cohesión, coherencia, intencionalidad, aceptabilidad, situacionalidad, intertextualidad, informatividad y los principios reguladores de la comunicación textual (eficacia, efectividad, adecuación, tomados de Beau grande y Dressler(1977, integrados en el modelo lingüístico comunicativo, proporcionan la aplicación idónea para la producción y comprensión del discurso periodístico.

  3. Aplicaciones de las TIC en la docencia en Lingüística Histórica y Comparada

    OpenAIRE

    Luján Martínez, Eugenio Ramón; Álvarez-Pedrosa Núñez, Juan Antonio; Santos Marinas, Enrique; Mendoza Tuñón, Julia; Maldonado, Ricardo; de Miguel García, Elena; Moncó Taracena, Sofía; Palancar, Enrique L.; Pascual, Aránzazu; Álvarez, María Luisa

    2009-01-01

    Comunicaciones presentadas en el Seminario "Aplicaciones de las TIC en la docencia en Lingüística Histórica y Comparada", celebrado en la Facultad de Filología de la Universidad Complutense de Madrid el 10 de diciembre de 2008.

  4. Las asignaturas del área de Lingüística Indoeuropea en el Campus Virtual de la UCM

    OpenAIRE

    Luján Martínez, Eugenio Ramón; Mendoza Tuñón, Julia; Álvarez-Pedrosa Núñez, Juan Antonio

    2009-01-01

    El póster presenta una panorámica del trabajo realizado por los profesores del área de Lingüística Indoeuropea de la Universidad Complutense para incorporar las asignaturas del área a la docencia a través del Campus Virtual, con especial énfasis en los aspectos colaborativos.

  5. Grøn laser i kystnær opmåling og miljømonitering

    DEFF Research Database (Denmark)

    Sørensen, Carlo; Ernstsen, Verner B.; Leth, Jørgen O.

    2015-01-01

    udnyttelse og beskyttelse af landets naturressourcer især indenfor kystzonen, hvor informationsniveauet indtil videre er utilstrækkeligt. Fremadrettet ses desuden store perspektiver i anvendelse af civile droner (UAV’s) til grøn laseropmåling. Dette kræver dog endnu udvikling bl.a. i at mindske vægten af...

  6. Una mirada hacia las actitudes lingüísticas en Puerto Rico

    Directory of Open Access Journals (Sweden)

    Carla M. Mojica De León

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de San Juan de Puerto Rico hacia al español del país y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 personas estratificada con las variables de edad, sexo y nivel socioeconómico. Se presentan los resultados que revelan las actitudes lingüísticas de los puertorriqueños hacia su español, las diversas creencias cognitivas y afectivas que las motivan y la percepción que muestran hacia el resto de las variedades del español. Nuestros hallazgos revelan que los puertorriqueños presentan una actitud positiva hacia su variedad y la variante peninsular, aunque rechazan algunos fenómenos lingüísticos de ambos dialectos. Se constata, además, que el habla de los grupos migratorios, representada en nuestro caso por la variedad dominicana, se percibe con menos prestigio. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from San Juan de Puerto Rico towards Spanish spoken in the country and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. The results of the study reveal the linguistic attitudes of Puerto Ricans toward their variety of Spanish, their cognitive and affective beliefs, and the perception they have of the other varieties of the Spanish language. Our findings confirm that Puerto Ricans have positive attitudes towards their own variety and the

  7. Competencia lingüística del alumnado inmigrante en un contexto bilingüe

    Directory of Open Access Journals (Sweden)

    José Luis Navarro

    2014-12-01

    Full Text Available Es bien conocida la relevancia que en los últimos años está teniendo el fenómeno de la inmigración en Cataluña (España. En consecuencia, nuestras escuelas se han transformado en centros donde la pluralidad étnica, religiosa, cultural y lingüística es cada día más evidente. Pero, a diferencia de otros territorios del Estado español, una de las características fundamentales de nuestro Sistema Educativo es su organización bajo los parámetros de la educación bilingüe. De esta manera, además de un profundo dominio del catalán, lengua propia de Cataluña y lengua usada como vehicular y de aprendizaje en la enseñanza, se persigue un buen conocimiento de la lengua castellana. En este contexto, diferentes estudios llevados a cabo en países con larga tradición en la recepción de inmigrantes, así como los escasos trabajos desarrollados en Cataluña y en el Estado español, ponen en evidencia el papel clave del dominio de la lengua de la escuela tanto de cara a garantizar el éxito escolar como para la integración y la cohesión social.Con este marco de fondo, nos situamos en el caso del Instituto de Educación Secundaria (IES de Guissona, en la comarca de la Segarra (Cataluña, donde por circunstancias diversas el fenómeno migratorio ha sido muy importante a lo largo de la última década. El objetivo de nuestra investigación es el análisis de las competencias lingüísticas del alumnado de dicho centro, tomando como referencia el nivel de competencia lingüística de sus iguales autóctonos. En concreto, a partir de una muestra de 28 niños y niñas inmigrantes que fueron comparados con un grupo de 93 escolares autóctonos de su misma edad y nivel escolar, nuestro trabajo analiza el desarrollo de diferentes habilidades en lengua catalana y castellana.

  8. ¿Qué es un déficit lingüístico?

    Directory of Open Access Journals (Sweden)

    Montserrat Veyrat Rigat

    2011-04-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} El punto de partida para nuestras reflexiones es la aportación del sistema lingüístico al ser humano: por una parte, la capacidad de convertir los datos analógicos y originarios que le llegan de su experiencia con la naturaleza en datos digitalizados y formalizados. Esto le permite anclarse en el mundo utilizando para ello un código lingüístico  determinado. Por otra parte, el lenguaje le confiere al mismo tiempo la capacidad para liberarse y ser creativo, como se patentiza en la creación poética, metafórica, Irónica . sin que ello suponga en ningun caso anomalía en su conducta, lingüística o de otro tipo. En el equilibrio de estas dos funciones que le atribuimos al lenguaje encontramos la "normalidad" del sistema cualquier desestabilización incontrolada en dicha nivelación funcional podría contemplarse como un déficit del lenguaje. También hemos considerado la estrecha relación entre los procesos de adquisición y aprendizaje y este aspecto funcional del lenguaje

  9. Actitudes lingüísticas en Cuba. Cambios positivos hacia la variante nacional de lengua

    Directory of Open Access Journals (Sweden)

    Roxana Sobrino Triana

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de La Habana, frente al español de Cuba y hacia el español de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes, estratificada con las variables de edad, sexo y nivel socioeconómico. El análisis está centrado en las denominaciones dadas a la lengua española, las percepciones cognitivo-lingüísticas y las actitudes, tanto positivas como negativas, que manifiestan los informantes hacia su variedad nacional y el resto de los países hispanohablantes, así como las opiniones sobre corrección y unidad lingüísticas. Entre los resultados obtenidos destaca la valoración positiva hacia la variante cubana, en relación con investigaciones anteriores. El estudio contribuye a actualizar el panorama sobre actitudes en Cuba y se suma a la serie de trabajos, que con una metodología común, se han realizado en el mundo hispánico dentro del proyecto LIAS. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from Havana, towards Spanish spoken in Cuba and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents based on the variables of age, sex and socioeconomic status. The analysis addresses several issues, such as the various names given to the Spanish language in Cuba, the cognitive linguistic perceptions and the positive and negative attitudes of Cuban speakers towards Spanish, as well as their opinions

  10. O curso de lingüística geral: apontamentos de uma leitura da análise do discurso

    Directory of Open Access Journals (Sweden)

    Vanice Maria Oliveira Sargentini

    2007-11-01

    Full Text Available Leitor atento do Curso de Lingüística Geral, Michel Pêcheux, do mirante da ciência das formações sociais, procura encontrar as contradições do pensamento saussuriano para propor um conjunto de questões para a Lingüística, intervindo em seus domínios e objetos. Uma dessas contradições pode ser evidenciada no conceito saussuriano de analogia. Para Pêcheux, embora Saussure tenha se esforçado para ligar a analogia à lingua, é possível evidenciar que a 'fala' saussuriana traz novamente à tona a problemática do sujeito. Com objetivo de negar e, ao mesmo tempo, superar esse antropologismo psicologista veiculado pelo conceito saussuriano de fala, Pêcheux, entendendo que o sistema lingüístico é dotado de uma autonomia relativa em relação ao seu exterior— as classes sociais —propõe a noção de processo discursivo. Essa noção daria coita de explicar como as palavras mudam de sentido segundo as posições sustentadas por aqueles que as empregam. Nosso objetivo é refletir sobre a negação e a superação operadas por Pêcheux em relação à leitura de uma das recepções do Curso de Lingüística Geral de Saussure, evidenciando que tal gesto relaciona-se mais com o projeto politico da Análise do Discurso do que efetivamente com os escritos saussurianos presentes no Curso de Lingüística Geral.

  11. O curso de lingüística geral: apontamentos de uma leitura da análise do discurso

    Directory of Open Access Journals (Sweden)

    Vanice Maria Oliveira Sargentini

    2007-11-01

    Full Text Available Leitor atento do Curso de Lingüística Geral, Michel Pêcheux, do mirante da ciência das formações sociais, procura encontrar as contradições do pensamento saussuriano para propor um conjunto de questões para a Lingüística, intervindo em seus domínios e objetos. Uma dessas contradições pode ser evidenciada no conceito saussuriano de analogia. Para Pêcheux, embora Saussure tenha se esforçado para ligar a analogia à lingua, é possível evidenciar que a 'fala' saussuriana traz novamente à tona a problemática do sujeito. Com objetivo de negar e, ao mesmo tempo, superar esse antropologismo psicologista veiculado pelo conceito saussuriano de fala, Pêcheux, entendendo que o sistema lingüístico é dotado de uma autonomia relativa em relação ao seu exterior— as classes sociais —propõe a noção de processo discursivo. Essa noção daria coita de explicar como as palavras mudam de sentido segundo as posições sustentadas por aqueles que as empregam. Nosso objetivo é refletir sobre a negação e a superação operadas por Pêcheux em relação à leitura de uma das recepções do Curso de Lingüística Geral de Saussure, evidenciando que tal gesto relaciona-se mais com o projeto politico da Análise do Discurso do que efetivamente com os escritos saussurianos presentes no Curso de Lingüística Geral.

  12. Sociolingüística y Lingüística

    OpenAIRE

    Fernández Pérez, Milagros

    1993-01-01

    El artículo ofrece una panorámica actual, y desde la historia, del ámbito de la Sociolingüística. Esferas como Sociología del lenguaje, Antropología lingüística, Pragmática, Sociolingüística interaccional, se someten a juicio con objeto de refinar el campo preciso de la Sociolingüística. Son razones de enfoque y de método las que dan soporte estricto al campo. Son esos mismos requisitos epistemológicos que definen la Sociolingüística en la actualidad los que permiten rastrear su presencia a l...

  13. Una propuesta para mejorar la completitud de requisitos utilizando un enfoque lingüístico

    Directory of Open Access Journals (Sweden)

    Carlos M. Zapata J.

    2006-01-01

    Full Text Available La calidad de los productos de software está estrechamente relacionada con la calidad de los requisitos especificados desde las primeras etapas del proceso de desarrollo; las propuestas encaminadas a la especificación de requisitos realizan incipientes esfuerzos para lograr que los requisitos del software sean lo suficientemente completos como para lograr la traducción de las necesidades y expectativas de los usuarios al producto final. En este artículo se presenta una propuesta para mejorar la calidad, en cuanto a completitud, de especificaciones de requisitos escritas en un subconjunto del español denominado español restringido, utilizando para ello un enfoque lingüístico basado en la gramática de casos.

  14. Problemas psicologicos en la comunicacion lingüistica en el Perú

    Directory of Open Access Journals (Sweden)

    Raúl Gonzales Moreyra

    1983-06-01

    Full Text Available Sustentándose en una hipótesis socio-lingüística de Alberto Escobar sobre la existencia de siete formas dialectales del español en el Perú, sehan explorado siete grupos representativos de dichos dialectos en áreas psicolingüísticas relacionadas con la percepción y producción delhabla, la memoria, las asociaciones verbales, la lectura de la redundancia. El autor halló que a las formas dialectales corresponden procesos psicológicos estadísticamente diferenciados que muestran pérdidas en el tratamiento de la información proveniente de una fuente que se expresa en la norma culta limeña. Se discute, además de los aspectos comunicacionales y psicológicos,algunas implicancias sociales y pedagógicas de estos hechos.

  15. Sociolingüística y Lingüística

    OpenAIRE

    Fernández Pérez, Milagros

    1993-01-01

    El artículo ofrece una panorámica actual, y desde la historia, del ámbito de la Sociolingüística. Esferas como Sociología del lenguaje, Antropología lingüística, Pragmática, Sociolingüística interaccional, se someten a juicio con objeto de refinar el campo preciso de la Sociolingüística. Son razones de enfoque y de método las que dan soporte estricto al campo. Son esos mismos requisitos epistemológicos que definen la Sociolingüística en la actualidad los que permiten rastrear su presencia a l...

  16. A liderança como intersubjetividade lingüística

    Directory of Open Access Journals (Sweden)

    Francisco Javier Uribe Rivera

    2006-12-01

    Full Text Available Este artigo traz uma síntese de várias concepções de liderança e seu objetivo é destacar a importância crescente da visão do líder como instância da aprendizagem organizacional, de base coletiva, e coordenador de processos de comunicação lingüística cujo telos é o consenso sobre a imagem, a estrutura e a dinâmica de funcionamento das organizações. Sustentamos que, além de capacidades de análise estratégica, o líder deve desenvolver competências comunicativas e apoiar a mudança para gerir com mais eficácia as relações intersubjetivas dos atores organizacionais, tornando a organização competente.

  17. Caos, complexidade e Lingüística Aplicada: diálogos transdisciplinares

    Directory of Open Access Journals (Sweden)

    Antônio Carlos Soares Martins

    2007-01-01

    Full Text Available Neste texto, apresentamos um panorama de estudos na área da Lingüística Aplicada que discutem questões relativas ao processo de desenvolvimento de segunda língua, bem como aspectos relacionados aos ambientes interacionais de aprendizagem na perspectiva das teorias do Caos e Complexidade. Para isso, discutimos as principais noções da perspectiva da complexidade, retomando alguns aspectos da física clássica e contemporânea.In this paper, we present a panorama of studies in the area of Applied Linguistics that discuss questions regarding second language development as well as aspects related to interactional learning environments in the light of Chaos and Complexity theories. To accomplish this, we discuss the main notions of complexity through the rethinking of some aspects of classic and contemporary physics.

  18. Lingüística aborigen colombiana: la problemática de las lenguas tucano

    Directory of Open Access Journals (Sweden)

    Ardila Ardila Olga Felisa

    2004-06-01

    Full Text Available

    Los estudios de lingüística aborigen colombiana presentan importantes avances durante los últimos 20 años. De la mayoría de las lenguas habladas en el país se posee al menos información básica y de algunas se han llevado a cabo estudios especializados. Las lenguas Tucano-Orientales del Vaupés y el Amazonas presentan entre sí importantes niveles de cercanía que plantean el problema de definir su estatus: lengua o dialecto? Problema que es común a muchas otras lenguas indígenas colombianas. El trabajo presenta resultados de un proceso investigativo que se llevó a cabo con el fin de definir los niveles de cercanía entre las 15 variedades que conforman esta subfamilia.

  19. Vygotsky: el giro lingüístico en psicología

    OpenAIRE

    Sánchez H., Yalile

    2010-01-01

    La referencia al giro lingüístico nos permite remitirnos a un problema de poco interés para los psicólogos y que sin embargo está presente en cualquier teorización hecha desde la psicología o cualquier otra disciplina. El punto a tratar son los vínculos implícitos o explícitos que cada teoría tiene con una u otra tradición en la historia de las ciencias. Es frecuente encontrar que la validez de las teorías se piensa de forma ahistórica, sin interesar el contexto socio-cultural al cuál respond...

  20. Regina vs Hubbs: Determining the Sun's Position

    CERN Document Server

    Samra, Raminder Singh

    2012-01-01

    Here I determined the Sun's position as an expert witness for crown counsel. From my calculations I found the Sun's location in the sky was such that it could not impede the driver's vision, as a result it could not have been the reason for the accused to be involved in a motor vehicle accident.

  1. La lingüística hoy: su (reconfiguración a través de los diferentes objetos de estudio

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Mahecha Bermúdez

    2008-12-01

    Full Text Available Este trabajo se sitúa en el ámbito de la historiografía lingüística. El propósito es mostrar las condiciones extra e interdisciplinares que permiten la configuración de objetos de estudio particulares a medida que las comunidades científicas evolucionan. Se verá que la lingüística actual (cognitiva es el resultado de un largo proceso de pulimento del objeto de estudio de la lingüística general, considerada aquella no solo como campo disciplinar, sino también como una actividad "cerebral" humana.

  2. La Lingüística hoy: su (reconfiguración a través de los diferentes objetos de estudio

    Directory of Open Access Journals (Sweden)

    Mahecha Bermúdez Miguel Ángel

    2008-06-01

    Full Text Available Este trabajo se sitúa en el ámbito de la historiografía lingüística. El propósito es mostrar las condiciones extra e interdisciplinares que permiten la configuración de objetos de estudio particulares a medida que las comunidades científicas evolucionan. Se verá que la lingüística actual (cognitiva es el resultado de un largo proceso de pulimento del objeto de estudio de la lingüística general, considerada aquella no solo como campo disciplinar, sino también como una actividad "cerebral" humana.

  3. La lingüística hoy: su (reconfiguración a través de los diferentes objetos de estudio

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Mahecha Bermúdez

    2008-01-01

    Full Text Available Este trabajo se sitúa en el ámbito de la historiografía lingüística. El propósito es mostrar las condiciones extra e interdisciplinares que permiten la configuración de objetos de estudio particulares a medida que las comunidades científicas evolucionan. Se verá que la lingüística actual (cognitiva es el resultado de un largo proceso de pulimento del objeto de estudio de la lingüística general, considerada aquella no solo como campo disciplinar, sino también como una actividad "cerebral" humana.

  4. Derechos lingüísticos y revitalización de las lenguas Conferencia y diálogo con Maurizio Gnerre*

    OpenAIRE

    Especiales, Colaboraciones

    2011-01-01

    La discusión sobre los derechos lingüísticos, en la actualidad, ha ganado mucha vigencia ya que las lenguas no solo se describen, sino que tienen que ver con un proceso de revitalización identitaria y de organización política. Está claro que existe una gran conexión entre la cuestión lingüística y los derechos humanos ya que muchas de las discriminaciones pasan exactamente a través de discriminaciones lingüísticas o por la incapacidad de expresar conceptos por la...

  5. Las políticas lingüísticas de la Universidad Nacional: Reflexiones y retos para el siglo XXI

    OpenAIRE

    Quiñones Calderón, Jairo Alberto

    2013-01-01

    Las políticas lingüísticas han sido parte importante de los imperios y naciones de la humanidad. En las últimas décadas estas políticas han comenzado a ser un aspecto fundamental de instituciones privadas y públicas, incluidas las Instituciones de Educación Superior (IES). Esta investigación analiza las políticas lingüísticas (relacionadas con las lenguas extranjeras e indígenas) de la Universidad Nacional de Colombia dentro de su proceso de internacionalización e inclusión de minorías lingüí...

  6. 也谈王莽改地名%On Wang Mang's Toponym Revision

    Institute of Scientific and Technical Information of China (English)

    何畏

    2012-01-01

    王莽改地名幅度很大,但仍只占全国地名系统的小部分,是州改名合理性、郡改名复杂性与县改名混乱性相结合的复杂事件,不能简单论断。王莽改地名体现出不平衡性,在层级上主要集中在郡,在地域上北多南少,西多东少。改名与命名是有区分的,这两者都是王莽整体执政方案的一部分,主观上有通盘考虑,而改名是施政需要与“应经”擅改的结合,是进步性与危害性的结合。%The place names which were revised by Wang Mang only account for a small portion of the toponym system, though he revised toponym greatly. What Wang Mang has done integrates the rationality of Zhou's, the complexity, of Jun's and the Chaos of Xian's revision, and can not be estimated simply. The revision is imbalance and concentrated on Jun. The Northern and the westem areas are widely involved, while the southem and eastern areas are relatively less involved. Toponym revision and nominating are different and parts of overall ruling scheme, which reflect file comprehensive consideration. Wang Mang's toponym revision reflects the combination of administration demand and farfetched arbitrary modifying, and the integration of evolution and harmfulness.

  7. 王茂荫的货币观%On Wang Maoyin's Pointview of Currency

    Institute of Scientific and Technical Information of China (English)

    董建新

    2012-01-01

    In the first year of Xianfeng ( 1851 ), Wang Maoyin presented a memorial to the throne with the Report on Currency, and suggested the Qing royal court to issue money to solve the financial difficulty. Again he presented a memorial to the throne with the Second Report on Currency, and stood for exchanging the official bank notes issued by the Ministry of Revenue and the treasured money issued by the Qing royal court for the money of credit, in order to stop the inflation and money devaluation. Wang Maoyin considered that paper money was false and silver was solid, putting forward the currency standpoint as being solid for false. Wang Maoyin opposed casting large - valued coins, especially the ones more than 50 be cause he thought that large - valued coins just meant taking falseness as solidness:%王茂荫在咸丰元年(1851年)上《条议钞法折》,建议清廷发钞以解决财政困难,又在咸丰四年(1854年)上《再议钞法折》,主张对新发行的户部官票和大清宝钞兑现银两,成为信用货币,制止已经发生的通货贬值。他认为“纸虚银实”,提出了“以实运虚”的货币观点。王茂荫反对铸大钱,尤其反对铸当五十以上的大钱,认为大钱“以虚作实”“似实而虚”。

  8. Literature Review of Wang Shih-chieh%王世杰研究述评

    Institute of Scientific and Technical Information of China (English)

    潘星

    2013-01-01

    Wang Shih-chieh has played an important role in academia,education,political and diplomatic circles,and many other areas in Republic of China.In recent years,with the publication of Wang Shih-chieh's Diaries,scholars began to give more attention to Wang and research achievements on him gradually increased.Among them,the most interesting part is the relations between him and political and diplomatic affairs of the Republic of China.The main purpose of this article is to review and summarize related research achievements and analyzes the current research status.%王世杰是一位在民国学术、教育、政治、外交界等多领域均发挥过重要作用和影响的人物。近年来随着《王世杰日记》的出版,学界对他的关注和研究逐渐增多,其中人们尤为感兴趣的是他与民国政治、外交之间的关系。对与王世杰相关的研究成果进行梳理,对当前的研究现状加以总结,在一定程度上有助于深化对王世杰本人,以及民国政治史、外交史的认识。

  9. Mitochondrial DNA deletion percentage in sun exposed and non sun exposed skin.

    Science.gov (United States)

    Powers, Julia M; Murphy, Gillian; Ralph, Nikki; O'Gorman, Susan M; Murphy, James E J

    2016-12-01

    The percentages of mitochondrial genomes carrying the mtDNA(3895) and the mtDNA(4977) (common) deletion were quantified in sun exposed and non sun exposed skin biopsies, for five cohorts of patients varying either in sun exposure profile, age or skin cancer status. Non-melanoma skin cancer diagnoses are rising in Ireland and worldwide [12] but most risk prediction is based on subjective visual estimations of sun exposure history. A quantitative objective test for pre-neoplastic markers may result in better adherence to sun protective behaviours. Mitochondrial DNA (mtDNA) is known to be subject to the loss of a significant proportion of specific sections of genetic code due to exposure to ultraviolet light in sunlight. Although one such deletion has been deemed more sensitive, another, called the mtDNA(4977) or common deletion, has proved to be a more useful indicator of possible risk in this study. Quantitative molecular analysis was carried out to determine the percentage of genomes carrying the deletion using non sun exposed and sun exposed skin biopsies in cohorts of patients with high or low sun exposure profiles and two high exposure groups undergoing treatment for NMSC. Results indicate that mtDNA deletions correlate to sun exposure; in groups with high sun exposure habits a significant increase in deletion number in exposed over non sun exposed skin occurred. An increase in deletion percentage was also seen in older cohorts compared to the younger group. The mtDNA(3895) deletion was detected in small amounts in exposed skin of many patients, the mtDNA(4977) common deletion, although present to some extent in non sun exposed skin, is suggested to be the more reliable and easily detected marker. In all cohorts except the younger group with relatively lower sun exposure, the mtDNA(4977) deletion was more frequent in sun exposed skin samples compared to non-sun exposed skin.

  10. Gravitational Lensing Characteristics of the Transparent Sun

    CERN Document Server

    Patla, Bijunath

    2007-01-01

    The transparent Sun is modeled as a spherically symmetric and centrally condensed gravitational lens using recent Standard Solar Model (SSM) data. The Sun's minimum focal length is computed to a refined accuracy of 23.5 +/- 0.1 AU, just beyond the orbit of Uranus. The Sun creates a single image of a distant point source visible to observers inside this minimum focal length and to observers sufficiently removed from the line connecting the source through the Sun's center. Regions of space are mapped where three images of a distant point source are created, along with their associated magnifications. Solar caustics, critical curves, and Einstein rings are computed and discussed. Extremely high gravitational lens magnifications exist for observers situated so that an angularly small, unlensed source appears near a three-image caustic. Types of radiations that might undergo significant solar lens magnifications as they can traverse the core of the Sun, including neutrinos and gravitational radiation, are discusse...

  11. Vibration Based Sun Gear Damage Detection

    Science.gov (United States)

    Hood, Adrian; LaBerge, Kelsen; Lewicki, David; Pines, Darryll

    2013-01-01

    Seeded fault experiments were conducted on the planetary stage of an OH-58C helicopter transmission. Two vibration based methods are discussed that isolate the dynamics of the sun gear from that of the planet gears, bearings, input spiral bevel stage, and other components in and around the gearbox. Three damaged sun gears: two spalled and one cracked, serve as the focus of this current work. A non-sequential vibration separation algorithm was developed and the resulting signals analyzed. The second method uses only the time synchronously averaged data but takes advantage of the signal/source mapping required for vibration separation. Both algorithms were successful in identifying the spall damage. Sun gear damage was confirmed by the presence of sun mesh groups. The sun tooth crack condition was inconclusive.

  12. Sun Safe Mode Controller Design for LADEE

    Science.gov (United States)

    Fusco, Jesse C.; Swei, Sean S. M.; Nakamura, Robert H.

    2015-01-01

    This paper presents the development of sun safe controllers which are designed to keep the spacecraft power positive and thermally balanced in the event an anomaly is detected. Employed by NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE), the controllers utilize the measured sun vector and the spacecraft body rates for feedback control. To improve the accuracy of sun vector estimation, the least square minimization approach is applied to process the sensor data, which is proven to be effective and accurate. To validate the controllers, the LADEE spacecraft model engaging the sun safe mode was first simulated and then compared with the actual LADEE orbital fight data. The results demonstrated the applicability of the proposed sun safe controllers.

  13. Security analysis of boolean algebra based on Zhang-Wang digital signature scheme

    Science.gov (United States)

    Zheng, Jinbin

    2014-10-01

    In 2005, Zhang and Wang proposed an improvement signature scheme without using one-way hash function and message redundancy. In this paper, we show that this scheme exits potential safety concerns through the analysis of boolean algebra, such as bitwise exclusive-or, and point out that mapping is not one to one between assembly instructions and machine code actually by means of the analysis of the result of the assembly program segment, and which possibly causes safety problems unknown to the software.

  14. Security analysis of boolean algebra based on Zhang-Wang digital signature scheme

    Energy Technology Data Exchange (ETDEWEB)

    Zheng, Jinbin, E-mail: jbzheng518@163.com [School of Mathematics and Computer Science, Long Yan University, Longyan 364012 (China)

    2014-10-06

    In 2005, Zhang and Wang proposed an improvement signature scheme without using one-way hash function and message redundancy. In this paper, we show that this scheme exits potential safety concerns through the analysis of boolean algebra, such as bitwise exclusive-or, and point out that mapping is not one to one between assembly instructions and machine code actually by means of the analysis of the result of the assembly program segment, and which possibly causes safety problems unknown to the software.

  15. In Memory of Professor WANG Ying-Lai%怀念王应睐教授

    Institute of Scientific and Technical Information of China (English)

    林其谁; 李伯良

    2001-01-01

    @@Professor WANG Ying-Lai,world-renowned biochemist and a member of the Chinese Academy of Sciences,passed away at 19:10,May 5,2001 resulting from an incurable disease.Since then,the Chinese Communist Party has lost an outstanding member struggling all his life for the development of science in China.The scientific communities in China have lost an outstanding scientist enjoying world prestige.His colleagues and students have lost a valuable friend and good teacher.Today,although he has left us,his scientific achievement and noble morality will be engraved on our mind forever.

  16. [Analysis on professor WANG Juyi's crevice theory from Tao Teh King].

    Science.gov (United States)

    Luo, Lu; Wang, Juyi

    2015-10-01

    The crevice theory proposed by professor WANG Juyi is analyzed in this article. In the crevice theory, it is believed that the meridians are located among "skin, pulse, flesh, tendon and bone", and the crevice is the path for the transportation of qi-blood and body fluid in the body, which is the essential condition for vital movement. This is in agreement with the idea of "action through inaction" from Tao Teh King. Based on crevice theory, the abnormalities of meridians can reflex the deficiency and excess of diseases, and regulating meridians is a significant way to treat diseases, and maintaining smooth meridian is important for healthcare.

  17. An L1-script-transfer-effect fallacy: a rejoinder to Wang et al. (2003).

    Science.gov (United States)

    Yamada, Jun

    2004-09-01

    Do different L1 (first language) writing systems differentially affect word identification in English as a second language (ESL)? Wang, Koda, and Perfetti [Cognition 87 (2003) 129] answered yes by examining Chinese students with a logographic L1 background and Korean students with an alphabetic L1 background for their phonological and orthographic processing skills on English word identification. Such a conclusion is premature, however. We propose that the L1 phonological system (rather than the L1 writing system) of the learner largely accounts for cognitive processes in learning to read a second language (L2).

  18. Two Parallel Swendsen-Wang Cluster Algorithms Using Message-Passing Paradigm

    CERN Document Server

    Lin, Shizeng

    2008-01-01

    In this article, we present two different parallel Swendsen-Wang Cluster(SWC) algorithms using message-passing interface(MPI). One is based on Master-Slave Parallel Model(MSPM) and the other is based on Data-Parallel Model(DPM). A speedup of 24 with 40 processors and 16 with 37 processors is achieved with the DPM and MSPM respectively. The speedup of both algorithms at different temperature and system size is carefully examined both experimentally and theoretically, and a comparison of their efficiency is made. In the last section, based on these two parallel SWC algorithms, two parallel probability changing cluster(PCC) algorithms are proposed.

  19. Conodont index fossil Hindeodus changxingensis Wang fingers greatest mass extinction event

    Science.gov (United States)

    Metcalfe, I.; Nicoll, R.S.; Wardlaw, B.R.

    2007-01-01

    The marine conodont fossil species, Hindeodus changxingensis Wang, that has a distinctive morphology, is restricted to a very narrow stratigraphic interval essentially from the Permian-Triassic extinction event through the internationally recognized boundary and into the very earliest Triassic. The species is geographically widespread in the Tethyan Region, from Italy to South China, and serves as a characteristic index fossil to reliably identify this short but critical interval that encompasses the greatest mass extinction of life on earth and the boundary between the Paleozoic and Mesozoic Eras. ?? 2007 Nanjing Institute of Geology and Palaeontology, CAS.

  20. Vice President Wang Jie Met with Vice President of the Royal Society of Edinburgh

    Institute of Scientific and Technical Information of China (English)

    Fan Yingjie

    2008-01-01

    @@ Prof.Wang Jie,NSFC Vice President,met with Prof.Tariq Durrani,Vice President of the Royal Society of Edinburgh,on May 21,2008.They held talks on issues concerning bilateral workshops and joint projects to be funded in 2009,and agreed upon the areas to launch the joint call for proposals,as well as deadlines for proposal submission and approval.Prof.Zhang Wei,Deputy Director General of the Department of Management Science,and other NSFC staff attended the meeting.

  1. Wang-Landau algorithm for continuous models and joint density of states.

    Science.gov (United States)

    Zhou, Chenggang; Schulthess, T C; Torbrügge, Stefan; Landau, D P

    2006-03-31

    We present a modified Wang-Landau algorithm for models with continuous degrees of freedom. We demonstrate this algorithm with the calculation of the joint density of states of ferromagnet Heisenberg models and a model polymer chain. The joint density of states contains more information than the density of states of a single variable-energy, but is also much more time consuming to calculate. We present strategies to significantly speed up this calculation for large systems over a large range of energy and order parameter.

  2. Protein folding of the H0P model: A parallel Wang-Landau study

    Energy Technology Data Exchange (ETDEWEB)

    Shi, Guangjie [University of Georgia, Athens, GA; Wuest, Thomas [ETH Zurich, Switzerland; Li, Ying Wai [ORNL; Landau, David P [University of Georgia, Athens, GA

    2015-01-01

    We propose a simple modication to the hydrophobic-polar (HP) protein model, by introducing a new type of monomer, "0", with intermediate hydrophobicity of some amino acids between H and P. With the replica-exchange Wang-Landau sampling method, we investigate some widely studied HP sequences as well as their H0P counterparts and observe that the H0P sequences exhibit dramatically reduced ground state degeneracy and more signicant transition signals at low temperature for some thermodynamic properties, such as the specific heat.

  3. A Wang-Landau study of the phase transitions in a flexible homopolymer

    Science.gov (United States)

    Seaton, D. T.; Wüst, T.; Landau, D. P.

    2009-04-01

    Using Wang-Landau sampling we study the characteristic behavior of a flexible homopolymer (off-lattice) for chain lengths up to N=300. The Hamiltonian consists of a Lennard-Jones potential between all monomers, and an additional FENE potential between bonded monomers. From the resultant density of states, we calculate thermodynamic properties for a wide range of temperatures, including low temperatures that are inaccessible to traditional Monte Carlo algorithms. Peaks in the specific heat and radius of gyration indicate the coil-globule and solid-liquid transitions. With a careful implementation of the algorithm, we find no evidence of a liquid-liquid transition.

  4. Wang-Landau Algorithm for Continuous Models and Joint Density of States

    Science.gov (United States)

    Zhou, Chenggang; Schulthess, T. C.; Torbrügge, Stefan; Landau, D. P.

    2006-03-01

    We present a modified Wang-Landau algorithm for models with continuous degrees of freedom. We demonstrate this algorithm with the calculation of the joint density of states of ferromagnet Heisenberg models and a model polymer chain. The joint density of states contains more information than the density of states of a single variable-energy, but is also much more time consuming to calculate. We present strategies to significantly speed up this calculation for large systems over a large range of energy and order parameter.

  5. Conformational transitions of a confined lattice protein: A Wang-Landau study

    Science.gov (United States)

    Pattanasiri, Busara; Li, Ying Wai; Landau, David P.; Wüst, Thomas; Triampo, Wannapong

    2012-12-01

    We use Wang-Landau sampling with suitable Monte Carlo trial moves to study a hydrophobic-polar (HP) lattice protein confined between two parallel, attractive walls. The density of states is determined iteratively by a random walk in energy space. Thermodynamic and structural properties, such as specific heat, number of surface contacts and number of H-H monomer pairs, are then calculated. When the surface attraction is comparable to the internal attraction among the hydrophobic monomers in the chain, two conformational “transitions”, adsorption at higher temperature and collapse at lower temperature, have been analyzed based on these properties. This transition behavior depends on the variation of surface separation.

  6. Two-Dimensional Wang-Landau Sampling of AN Asymmetric Ising Model

    Science.gov (United States)

    Tsai, Shan-Ho; Wang, Fugao; Landau, D. P.

    We study the critical endpoint behavior of an asymmetric Ising model with two- and three-body interactions on a triangular lattice, in the presence of an external field. We use a two-dimensional Wang-Landau sampling method to determine the density of states for this model. An accurate density of states allowed us to map out the phase diagram accurately and observe a clear divergence of the curvature of the spectator phase boundary and of the derivative of the magnetization coexistence diameter near the critical endpoint, in agreement with previous theoretical predictions.

  7. Unraveling the Beautiful Complexity of Simple Lattice Model Polymers and Proteins Using Wang-Landau Sampling

    Science.gov (United States)

    Wüst, T.; Li, Y. W.; Landau, D. P.

    2011-08-01

    We describe a class of "bare bones" models of homopolymers which undergo coil-globule collapse and proteins which fold into their native states in free space or into denatured states when captured by an attractive substrate as the temperature is lowered. We then show how, with the use of a properly chosen trial move set, Wang-Landau Monte Carlo sampling can be used to study the rough free energy landscape and ground (native) states of these intriguingly simple systems and thus elucidate their thermodynamic complexity.

  8. Determination of the conformal-field-theory central charge by the Wang-Landau algorithm

    Science.gov (United States)

    Belov, P. A.; Nazarov, A. A.; Sorokin, A. O.

    2017-06-01

    We present a simple method to estimate the central charge of the conformal field theory corresponding to a critical point of a two-dimensional lattice model from Monte Carlo simulations. The main idea is to use the Wang-Landau flat-histogram algorithm, which allows us to obtain the free energy of a lattice model on a torus as a function of torus radii. The central charge is calculated with good precision from a free-energy scaling at the critical point. We apply the method to the Ising, tricritical Ising (Blume-Capel), Potts, and site-diluted Ising models, and we also discuss an estimation of the conformal weights.

  9. Pioneer of Sino-Japanese People to People Friendly Exchanges——Commemorate the 15th Anniversary of the Passing of Sun Pinghua

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    <正>On August 15, 1997, Sun Pinghua,an expert in Japanese affairs,witness of China-Japan friendly relations and pioneer of Sino-Japanese people-to-people friendly exchanges,passed away. It was a great loss to the cause of China-Japan friendship.The well-known expert in Japan affairs died after Wang Zhen and Liao Chengzhi, two other great pioneers.Personages of various circles in Japan expressed their deep grief over his death. Representatives of various social

  10. Simulation of Quiet-Sun Hard X-Rays Related to Solar Wind Superhalo Electrons

    Science.gov (United States)

    Wang, Wen; Wang, Linghua; Krucker, Säm; Hannah, Iain

    2016-05-01

    In this paper, we propose that the accelerated electrons in the quiet Sun could collide with the solar atmosphere to emit Hard X-rays (HXRs) via non-thermal bremsstrahlung, while some of these electrons would move upwards and escape into the interplanetary medium, to form a superhalo electron population measured in the solar wind. After considering the electron energy loss due to Coulomb collisions and the ambipolar electrostatic potential, we find that the sources of the superhalo could only occur high in the corona (at a heliocentric altitude ≳ 1.9 R_{⊙} (the mean radius of the Sun)), to remain a power-law shape of electron spectrum as observed by Solar Terrestrial Relations Observatory (STEREO) at 1 AU near solar minimum (Wang et al. in Astrophys. J. Lett. 753, L23, 2012). The modeled quiet-Sun HXRs related to the superhalo electrons fit well to a power-law spectrum, f ˜ ɛ^{-γ} in the photon energy ɛ, with an index γ≈2.0 - 2.3 (3.3 - 3.7) at 10 - 100 keV, for the warm/cold-thick-target (thin-target) emissions produced by the downward-traveling (upward-traveling) accelerated electrons. These simulated quiet-Sun spectra are significantly harder than the observed spectra of most solar HXR flares. Assuming that the quiet-Sun sources cover 5 % of the solar surface, the modeled thin-target HXRs are more than six orders of magnitude weaker than the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) upper limit for quiet-Sun HXRs (Hannah et al. in Astrophys. J. 724, 487, 2010). Using the thick-target model for the downward-traveling electrons, the RHESSI upper limit restricts the number of downward-traveling electrons to at most {≈} 3 times the number of escaping electrons. This ratio is fundamentally different from what is observed during solar flares associated with escaping electrons where the fraction of downward-traveling electrons dominates by a factor of 100 to 1000 over the escaping population.

  11. Las actitudes lingüísticas en el español de San José, Costa Rica

    Directory of Open Access Journals (Sweden)

    Annette Calvo Shadid

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de cuatro distritos de la capital, San José, frente al español Costa Rica y el español de los otros países hispanohablantes. La presente investigación constituye un estudio sociolingüístico cuantitativo y es parte de los resultados del Proyecto LIAS (Linguistic Identity and attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 404 informantes estratificada con las variables de edad, sexo y nivel socioeconómico. En el artículo se abordan las actitudes lingüísticas desde tres tipos de percepciones, a saber, percepciones cognitivo-lingüísticas y actitudes afectivas sobre el español nacional, opiniones sobre la corrección lingüística y los medios de comunicación y sobre la unidad o diversidad del español; percepciones cognitivo-lingüísticas sobre el español de los otros países, y actitudes afectivas y preferencias por otras variedades lingüísticas del idioma. Abstract This article analyzes the linguistic attitudes of Spanish speakers from four districts of the capital, San José, towards Spanish spoken in Costa Rica and in the other Spanish-speaking countries. It is based on a quantitative sociolinguistic study and is a result of the LIAS-Project (Linguistic Identity and attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 404 respondents based on the variables of age, sex and socioeconomic status. The linguistic attitudes are studied from three types of perceptions, namely, cognitive-linguistic perceptions and affective attitudes on national Spanish, opinions about the linguistic correction and the media, and about the unity or diversity of the Spanish language

  12. The Sun and How to Observe It

    CERN Document Server

    Jenkins, Jamey L

    2009-01-01

    Without the Sun, all life on Earth would perish. But what exactly do we know about this star that lights, heats, and powers Earth? Actually, we know quite a lot, thanks mainly to a host of eager solar observers. Looking directly at the Sun is EXTREMELY hazardous. But many astronomers, both professional and amateur, have found ways to view the Sun safely to learn about it. You, too, can view the Sun in all of its glorious detail. Some of the newest, most exciting telescopes on the market are affordable to amateur astronomers or even just curious sky watchers, and with this guide to what the Sun has to offer, including sunspots, prominences, and flares, plus reviews of the latest instruments for seeing and capturing images of the Sun, you can contribute to humankind’s knowledge of this immense ball of glowing gases that gives us all life. For a complete guide to Sun viewing, see also Total Solar Eclipses and How to Observe Them (2007) by Martin Mobberley in this same series.

  13. Sun-synchronous satellite orbit determination

    Science.gov (United States)

    Ma, Der-Ming; Zhai, Shen-You

    2004-02-01

    The linearized dynamic equations used for on-board orbit determination of Sun-synchronous satellite are derived. Sun-synchronous orbits are orbits with the secular rate of the right ascension of the ascending node equal to the right ascension rate of the mean sun. Therefore the orbit is no more a closed circle but a tight helix about the Earth. In the paper, instead of treating the orbit as a closed circle, the actual helix orbit is taken as nominal trajectory. The details of the linearized equations of motion for the satellite in the Sun-synchronous orbit are derived. The linearized equations are obtained by perturbing the Keplerian motion with the J2 correction and the effect of sun's attraction being neglected. Combined with the GPS navigation equations, the Kalman filter formulation is given. The particular application considered is the circular Sun-synchronous orbit with the altitude of 800 km and inclination of 98.6°. The numerical example simulated by MATLAB® shows that only the pseudo-range data used in the algorithm still gives acceptable results. Based on the simulation results, we can use the on-board GPS receivers' signal only as an alternative to determine the orbit of Sun-Synchronous satellite and therefore circumvents the need for extensive ground support.

  14. SunPy—Python for solar physics

    Science.gov (United States)

    SunPy Community; Mumford, Stuart J.; Christe, Steven; Pérez-Suárez, David; Ireland, Jack; Shih, Albert Y.; Inglis, Andrew R.; Liedtke, Simon; Hewett, Russell J.; Mayer, Florian; Hughitt, Keith; Freij, Nabil; Meszaros, Tomas; Bennett, Samuel M.; Malocha, Michael; Evans, John; Agrawal, Ankit; Leonard, Andrew J.; Robitaille, Thomas P.; Mampaey, Benjamin; Campos-Rozo, Jose Iván; Kirk, Michael S.

    2015-01-01

    This paper presents SunPy (version 0.5), a community-developed Python package for solar physics. Python, a free, cross-platform, general-purpose, high-level programming language, has seen widespread adoption among the scientific community, resulting in the availability of a large number of software packages, from numerical computation (NumPy, SciPy) and machine learning (scikit-learn) to visualization and plotting (matplotlib). SunPy is a data-analysis environment specializing in providing the software necessary to analyse solar and heliospheric data in Python. SunPy is open-source software (BSD licence) and has an open and transparent development workflow that anyone can contribute to. SunPy provides access to solar data through integration with the Virtual Solar Observatory (VSO), the Heliophysics Event Knowledgebase (HEK), and the HELiophysics Integrated Observatory (HELIO) webservices. It currently supports image data from major solar missions (e.g., SDO, SOHO, STEREO, and IRIS), time-series data from missions such as GOES, SDO/EVE, and PROBA2/LYRA, and radio spectra from e-Callisto and STEREO/SWAVES. We describe SunPy's functionality, provide examples of solar data analysis in SunPy, and show how Python-based solar data-analysis can leverage the many existing tools already available in Python. We discuss the future goals of the project and encourage interested users to become involved in the planning and development of SunPy.

  15. Effect of "Deqi" during the Study of Needling "Wang's Jiaji" Acupoints Treating Spasticity after Stroke.

    Science.gov (United States)

    Li, Huanqin; Liu, Huilin; Liu, Cunzhi; Shi, Guangxia; Zhou, Wei; Zhao, Chengmei; Zhang, Tao; Wang, Xuefei; Wang, Guiling; Zhao, Yin; Sun, Jingqing; Wang, Jing; Wang, Linpeng

    2014-01-01

    Background. Acupuncture has been shown to reduce spasticity and prevent the onset of spasticity after stroke. The purpose of this study is to assess the effect of "Deqi" during needling "Wang's Jiaji" acupoints treating spasticity in the early stage of stroke. Methods. This study is a multicenter, prospective, randomized, controlled trial. 238 patients with stroke (Deqi" while the sham-acupuncture group received sham acupuncture without "Deqi." Patients in both groups followed the same 30 min acupuncture regimen 5 times per week for a period of 4 weeks. Scales of MAS, FMA, ADL, MBI, NIHSS, SS-QOL, and MRS were measured at baseline and at 2, 4, and 12 weeks after intervention. Results. Significant differences were observed between two groups. The MRS rating composition has the statistical difference after 4 weeks (P = 0.017). The score of MAS, FMA, Barthel, and SSQOL in verum-acupuncture group has increased significantly compared with the sham-acupuncture group after 12 weeks. There was 14% reduction of higher muscle tension in the verum-acupuncture group. Conclusion. Acupuncture "Wang's Jiaji" points with sensation of "Deqi" in the early stage may reduce the occurrence and decrease the severity of spasticity after stroke.

  16. Replica-exchange Wang-Landau simulations of the H0P model of protein folding

    Science.gov (United States)

    Shi, Guangjie; Landau, David P.; Wüst, Thomas; Li, Ying Wai Li

    2015-03-01

    The hydrophobic-polar (HP) model has served as a coarse-grained lattice protein folding model attracting scientists from various disciplines. However, simplification into H and P monomers may yield high ground state degeneracies which stands in contrast to the generally unique native states of natural proteins. We propose a simple modification, by introducing a new type of ``neutral'' monomer, 0, i.e. neither hydrophobic nor polar, rendering the model more realistic without increasing the difficulties of sampling significantly. With the newly developed parallel Wang-Landau (replica exchange Wang-Landau) scheme and an innovative method of estimating the ground state degeneracies, we investigated some widely studied HP proteins and their H0P counterparts. Dramatic differences in ground state and thermodynamic properties have been observed, e.g. the estimation of ground state degeneracy for the 46mer is 460,000 for the HP version and only 20 for the H0P mapping. Similarly, the specific heat and structural properties: radius of gyration and etc. show more pronounced signals associated with folding. Supported by NSF.

  17. Política lingüística y dictadura militar en Uruguay (1973-1985) : los informes institucionales sobre la situación lingüística fronteriza

    OpenAIRE

    Barrios, Graciela

    2015-01-01

    En este artículo discuto las políticas lingüísticas de Uruguay en relación con el bilingüismo fronterizo del norte de este país, durante el período de dictadura militar (1973-1985). En particular, estudio los informes lingüísticos producidos por el Ministerio de Educación y Cultura (1980) y la Academia Nacional de Letras (1982) sobre este tema. La investigación contiene una introducción sobre la situación histórica y sociolingüística de Uruguay, una discusión sobre las políticas puristas y na...

  18. Anisotropic microstructure near the sun

    Science.gov (United States)

    Coles, W. A.; Grall, R. R.; Spangler, S. R.; Sakurai, T.; Harmon, J. K.

    1996-07-01

    Radio scattering observations provide a means of measuring a two-dimensional projection of the three-dimensional spatial spectrum of electron density, i.e., in the plane perpendicular to the line of sight. Earlier observations have shown that the microstructure at scales of the order of 10 km becomes highly field-aligned inside of 10 Rsolar [Armstrong et al., 1990]. Earlier work has also shown that density fluctuations at scales larger than 1000 km have a Kolmogorov spectrum, whereas the smaller scale structure has a flatter spectrum and is considerably enhanced above the Kolmogorov ``background'' [Coles et al., 1991]. Here we present new observations made during 1990 and 1992. These confirm the earlier work, which was restricted to one source on a few days, but they suggest that the anisotropy changes abruptly near 6 Rsolar which was not clear in the earlier data. The axial ratio measurements are shown on Figure 1 below. The new observations were made with a more uniform sampling of the spatial plane. They show that contours of constant correlation are elliptical. This is apparently inconsistent with the spatial correlation of the ISEE-3 magnetic field which shows a ``Maltese Cross'' shape [Matthaeus et al., 1990]. However this inconsistency may be only apparent: the magnetic field and density correlations need not have the same shape; the scale of the magnetic field correlations is at least 4 orders of magnitude larger; they are much further from the sun; and they are point measurements whereas ours are path-integrated. We also made two simultaneous measurements, at 10 Rsolar, of the anisotropy on scales of 200 to 4000 km. Significant anisotropy was seen on the smaller scales, but the larger scale structure was essentially isotropic. This suggests that the process responsible for the anisotropic microstructure is independent of the larger scale isotropic turbulence. It is then tempting to speculate that the damping of this anisotropic process inside of 6 Rsolar

  19. The Sun's dusty interstellar environment

    Science.gov (United States)

    Sterken, Veerle

    2016-07-01

    The Sun's dusty interstellar environment Interstellar dust from our immediate interstellar neighborhood travels through the solar system at speeds of ca. 26 km/s: the relative speed of the solar system with respect to the local interstellar cloud. On its way, its trajectories are altered by several forces like the solar radiation pressure force and Lorentz force. The latter is due to the charged dust particles that fly through the interplanetary magnetic field. These trajectories differ per particle type and size and lead to varying fluxes and directions of the flow inside of the solar system that depend on location but also on phase in the solar cycle. Hence, these fluxes and directions depend strongly on the configuration of the inner regions and outer regions of the heliosphere. Several missions have measured this dust in the solar system directly. The Ulysses dust detector data encompasses 16 years of intestellar dust fluxes and approximate directions, Stardust captured returned to Earth a few of these particles sucessfully, and finally the Cassini dust detector allowed for compositional information to be obtained from the impacts on the instrument. In this talk, we give an overview of the current status of interstellar dust research through the measurements made inside of the solar system, and we put them in perspective to the knowledge obtained from more classical astronomical means. In special, we focus on the interaction of the dust with the interplanetary magnetic field, and on what we learn about the dust (and the fields) by comparing the available dust data to computer simulations of dust trajectories. Finally, we synthesize the different methods of observation, their results, and give a preview on new research opportunities in the coming year(s).

  20. Perspectives on the Interior of the Sun

    Indian Academy of Sciences (India)

    S. Μ. Chitre

    2000-09-01

    The interior of the Sun is not directly accessible to observations. Nonetheless, it is possible to infer the physical conditions inside the Sun with the help of structure equations governing its equilibrium and with the powerful observational tools provided by the neutrino fluxes and oscillation frequencies. The helioseismic data show that the internal constitution of the Sun can be adequately represented by a standard solar model. It turns out that a cooler solar core is not a viable solution for the measured deficit of neutrino fluxes, and the resolution of the solar neutrino puzzle should be sought in the realm of particle physics.

  1. The Jovian period in the Sun?

    Science.gov (United States)

    Kotov, V. A.

    2015-09-01

    The 41-year measurements of the Doppler effect of the photosphere performed at the Crimean Astrophysical Observatory, discovered two periods of global oscillations of the Sun: 9600.606(12) s and 9597.929(15) s. Their beat period, 398.4(2.9) d, well agrees with a synodic orbital period of Jupiter, PJ = 398.9 d, raising a new problem for solar physics, cosmogony and cosmology. A hypothesis is advanced that the PJ beating of the Sun is induced by gravitation of Jupiter, revolving in a privileged reference system "the Sun - the Earth".

  2. Semiautomatic sun shots with the WIDIF DIflux

    Science.gov (United States)

    Rasson, Jean L.; Hendrickx, Olivier; Marin, Jean-Luc

    2017-07-01

    The determination of magnetic declination angle entails finding two directions: geographic north and magnetic north. This paper deals with the former. The known way to do it by using the sun's calculable orientation in the sky is improved by using a device based on a WIDIF DIflux theodolite and split photocells positioned on its telescope ocular. Given the WIDIF accurate timing and location provided by the onboard GPS receiver, an astronomical computation can be effected to accurately and quickly determine the sun's azimuth and an auxiliary mark's azimuth. The precise sun's crossing of the split photocell, amplified by the telescope's magnification, allows azimuth accuracies of a few seconds of arc.

  3. Constrained fuzzy predictive control based on Wang-Mendel model%基于Wang-Mendel模型的有约束模糊预测控制

    Institute of Scientific and Technical Information of China (English)

    张立; 高宪文; 李申明; 赵娟平; 王介生

    2010-01-01

    为解决多输入系统Wang-Mendel(WM)建模过程中输入量取舍困难和未选用的输入量影响模型精度的问题,通过引入前一时刻输出作为当前时刻输入的一部分对WM建模方法进行了改进;在此基础上建立多步递推模糊预测模型.同时,为了减少有约束预测控制优化的求解时间,提出一种利用模糊控制器分担控制量及控制增量约束的模糊预测复合控制策略.通过对回转窑煅烧温度模型的仿真,验证了建模和控制方法的有效性.

  4. Fuzzy Rule Extraction by Fusing SOM and Wang-Mendel Method%融合自组织映射与Wang-Mendel方法的模糊规则提取

    Institute of Scientific and Technical Information of China (English)

    於东军; 谌贻华; 于海瑛

    2011-01-01

    To solve the problem that too many fuzzy rules may be extracted by the classic Wang-Mendel method,a novel rule extraction method which combines self-organizing map (SOM) and Wang-Mendel method is presented. Original samples are firstly learned by the SOM,and rules are further extracted from the codebook vectors of the learned SOM by the Wang-Mendel method. The proposed method decreases the number of the extracted rules and the time consumption because the codebook vectors of the learned SOM achieves the pattern distribution knowledge of the original samples and the number of the codebook vectors is far less than that of the original samples. Experimental results on chaotic time series prediction demonstrate the effectiveness of the proposed method.%为解决经典Wang-Mendel方法提取模糊规则时得到的规则数目较多的问题,该文提出一个融合自组织映射(SOM)网络和Wang-Mendel方法的规则提取方案.利用SOM对原始样本进行学习,再使用Wang-Mendel方法从SOM的原型向量中提取规则.因为SOM的原型向量学习得到了原始样本的模式分布规律,并且原型向量的数量远小于原始学习样本的数量,所以该方法降低了提取的规则数目及耗费时间.有关混沌时间序列预测的实验结果表明了该文方法的有效性.

  5. Actitudes lingüísticas hacia el castellano en Bolivia. Entre la fidelidad y la conciencia lingüística

    Directory of Open Access Journals (Sweden)

    María Juana Aguilar

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de La Paz, hacia al español de Bolivia y el español de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en La Paz, entrevistando a una muestra de 400 informantes estratificada con las variables de edad, sexo y nivel socioeconómico. En análisis muestra, en general, una actitud positiva de parte de los hablantes bolivianos hacia su propia variedad de habla española. Se concluye también que los entrevistados son conscientes de que existen diversas variantes del español, no solamente dentro de su país, sino también fuera de este, las cuales reconocen como diferentes entre sí y las que no perciben como incorrectas o correctas, mejores o peores que otras. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from La Paz, towards Spanish spoken in Bolivia and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in La Paz, interviewing a stratified sample of 400 respondents based on the variables of age, sex and socioeconomic status. The analysis shows, in general, that Spanish speakers in Bolivia have a positive attitude towards their own variety of the language. It is also shown that the interviewees are aware that there are other varieties of the Spanish language, not only in their country, but also in the other Spanish-speaking countries. They do not characterize these varieties as incorrect or correct, better or worse, but only consider them as different from the others.

  6. Actitudes lingüísticas en Paraguay. Identidad lingüística de los hablantes de lengua materna castellana en Asunción

    Directory of Open Access Journals (Sweden)

    Ana Beatriz Chiquito

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la Ciudad de Asunción, hacia el español del Paraguay y el de los otros países hispanohablantes. El artículo hace parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes estratificada con las variables de edad, sexo y nivel socioeconómico. El artículo resalta la particularidad del bilingüismo del país y la situación de diglosia entre el guaraní y el castellano; el mayor prestigio del castellano de Asunción frente al habla de las ciudades fronterizas con Brasil y Argentina, en las cuales se hablan el portugués brasileño, el guaraní y el español argentino, además del español paraguayo. Los resultados del estudio confirman el prestigio del castellano, cuyo papel oficial se mantiene, a pesar del creciente prestigio del guaraní, impulsado por las nuevas leyes de educación bilingüe y el establecimiento de la Academia de la Lengua Guaraní. Abstract This article analyzes the linguistic attitudes of native Spanish speakers of Asunción, towards Spanish spoken in Paraguay and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. The article highlights the special situation of bilingualism in the country and the diglosic relationship between Guarani and Spanish; the higher prestige of the Spanish variety spoken in Asunción, compared to the ones spoken in the Paraguayan cities on the border with Brazil and Argentina

  7. Actitudes lingüísticas en República Dominicana. Conciencia e identidad lingüísticas en la ciudad de Santo Domingo

    Directory of Open Access Journals (Sweden)

    Glennys Miguelina Serverino Cerda

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de Santo Domingo hacia al español de la República Dominicana y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 401 personas, estratificada con las variables de edad, sexo y nivel socioeconómico. Los resultados muestran el nivel de identificación que tienen los dominicanos sobre su dialecto, el cual es bajo, ya que solo se prefiere ante circunstancias especiales justificadas por la necesidad de comunicarse y de que el mensaje llegue correctamente. Asimismo se observa que los capitalinos prefieren la propia variante de español y luego las de España, Colombia y Venezuela, pero también se identifican con el habla de los países caribeños vecinos, especialmente con el habla cubana. Abstract This article analyzes the linguistic attitudes of native Spanish-speakers from Santo Domingo towards Spanish spoken in the Dominican Republic and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital, interviewing a stratified sample of 401 respondents, based on the variables of age, sex and socioeconomic status. The results demonstrate the limited extent to which Dominicans identify with their dialect, as they prefer it only under particular circumstances justified by the necessity of communicating and in order to make sure to get the message correctly across. Similarly the observation was made that people from the capital prefer their own variant of Spanish and thereafter those of Spain, Colombia and

  8. Phase equilibria of molecular fluids via hybrid Monte Carlo Wang-Landau simulations: applications to benzene and n-alkanes.

    Science.gov (United States)

    Desgranges, Caroline; Delhommelle, Jerome

    2009-06-28

    In recent years, powerful and accurate methods, based on a Wang-Landau sampling, have been developed to determine phase equilibria. However, while these methods have been extensively applied to study the phase behavior of model fluids, they have yet to be applied to molecular systems. In this work, we show how, by combining hybrid Monte Carlo simulations in the isothermal-isobaric ensemble with the Wang-Landau sampling method, we determine the vapor-liquid equilibria of various molecular fluids. More specifically, we present results obtained on rigid molecules, such as benzene, as well as on flexible chains of n-alkanes. The reliability of the method introduced in this work is assessed by demonstrating that our results are in excellent agreement with the results obtained in previous work on simple fluids, using either transition matrix or conventional Monte Carlo simulations with a Wang-Landau sampling, and on molecular fluids, using histogram reweighting or Gibbs ensemble Monte Carlo simulations.

  9. Human Reliability Analysis for Digitized Nuclear Power Plants: Case Study on the LingAo II Nuclear Power Plant

    Directory of Open Access Journals (Sweden)

    Yanhua Zou

    2017-03-01

    Full Text Available The main control room (MCR in advanced nuclear power plants (NPPs has changed from analog to digital control system (DCS. Operation and control have become more automated, centralized, and accurate due to the digitalization of NPPs, which has improved the efficiency and security of the system. New issues associated with human reliability inevitably arise due to the adoption of new accident procedures and digitalization of main control rooms in NPPs. The LingAo II NPP is the first digital NPP in China to apply the state-oriented procedure. In order to address issues related to human reliability analysis for DCS and DCS + state-oriented procedure, the Hunan Institute of Technology conducted a research project based on a cooperative agreement with the LingDong Nuclear Power Co. Ltd. This paper is a brief introduction to the project.

  10. El teorema de Ling y su relación con nuevas familias de t-normas

    OpenAIRE

    Sols Lucia, Jesús

    2012-01-01

    El teorema de Ling demuestra que existe un generador aditivo único para cada t-norma arquimediana y continua. Se trata de un teorema básico de la teoría de t-normas, la cual se utiliza en la teoría de relaciones fuzzy. En la construcción de Ling, este generador es construído partiendo del valor de su función cuasiin- versa sobre todos los números racionales positivos. En esta memoria es construído de una manera más simple y e ciente, partiendo de sólo los valores de la función ...

  11. El teorema de Ling y su relación con nuevas familias de t-normas

    OpenAIRE

    Sols Lucia, Jesús

    2012-01-01

    El teorema de Ling demuestra que existe un generador aditivo único para cada t-norma arquimediana y continua. Se trata de un teorema básico de la teoría de t-normas, la cual se utiliza en la teoría de relaciones fuzzy. En la construcción de Ling, este generador es construído partiendo del valor de su función cuasiin- versa sobre todos los números racionales positivos. En esta memoria es construído de una manera más simple y e ciente, partiendo de sólo los valores de la función ...

  12. Lingüística aplicada e o ensino de línguas estrangeiras no Brasil

    Directory of Open Access Journals (Sweden)

    John Robert Schmitz

    2001-02-01

    Full Text Available

    Procura-se neste trabalho apresentar um esboço de Lingüística Aplicada e o Ensino de Línguas Estrangeiras no mundo e também no Brasil. Conclui-se que a disciplina está em pleno desenvolvimento com contribuições pertinentes para o ensino e aprendizagem de línguas, além de outras áreas de conhecimento tais como língua pátria, ensino bilíngüe, tradução, alfabetização e letramento. Destaca-se no artigo o estado da arte em Lingüística Aplicada no Brasil que atinge no momento, especialmente no campo de ensino de línguas estrangeiras, a sua maturidade após vinte anos de atividade.

  13. Tension conceptual entre "aplicacion" y ''lingüisticidad" en la hermeneutica filosofica de H.G Gadamer.

    Directory of Open Access Journals (Sweden)

    Pepi Patrón

    1989-12-01

    Full Text Available Al modo como Gadamer desarrolla la "tensión" existente entre método y verdad, este artículo pretende desarrollar la tensión entre dos conceptos centrales de la hermenéutica gadameriana: 'aplicación' y 'lingüisticidad'(Sprachlichkeil. La naturaleza práctica, siempre particular y situada, de la comprensión es confrontada con la consideración del lenguaje como medio universal del comprender, en tanto instaura un 'acuerdo previo', un 'diálogo efectivo', en toda comunidad lingüística. Sin embargo, la asimetría entre estos dos conceptos hace difícil la comprehensión de la contradicción (y hasta exclusión entre prejuicios e interpretaciones diversas que no necesariamente se enfrentan en términos dialógicos o de 'acuerdo que nos precede'.

  14. Un algoritmo lingüístico-estadístico para resumen automático de textos especializados

    Directory of Open Access Journals (Sweden)

    Iria Da Cunha

    2009-12-01

    Full Text Available En este trabajo se presenta un nuevo algoritmo de resumen automático de textos especializados, en concreto del dominio médico, que aúna estrategias lingüísticas y estadísticas. La novedad del artículo radica en la correcta combinación de dichas estrategias de cara a demostrar que los sistemas híbridos pueden obtener mejores resultados que los sistemas estadísticos o lingüísticos por sí solos. Se aplica el algoritmo sobre un corpus de textos médicos y se evalúa siguiendo el protocolo de NIST y utilizando el paquete Rouge. Se obtienen excelentes resultados en comparación con otros sistemas y se observa que los resúmenes realizados son muy similares a los de los especialistas del dominio.

  15. Finding the lost siblings of the Sun

    Science.gov (United States)

    Liu, Cheng; Feltzing, Sofia; Ruchti, Gregory

    2014-01-01

    We have performed a spectral analysis on 18 stars solar sibling candidate. We found that only one one of the candidateshas solar metallicity and at the same time might have an age comparable to that of the Sun.

  16. Sun and Other Types of Radiation

    Science.gov (United States)

    ... What Causes Cancer? Sun and Other Types of Radiation Learn about the different types of radiation and ... other diseases. Learn more here. Other Types of Radiation Exposure Not all types of radiation have been ...

  17. Sun behaviour after cutaneous malignant melanoma

    DEFF Research Database (Denmark)

    Idorn, L W; Datta, P; Heydenreich, J

    2013-01-01

    Background  It has been reported that patients with cutaneous malignant melanoma (CMM) can lower their risk of a second primary melanoma by limiting recreational sun exposure. Previous studies based on questionnaires and objective surrogate measurements indicate that before their diagnosis......, patients with CMM are exposed to higher ultraviolet radiation (UVR) doses than controls, followed by a reduction after diagnosis. Objectives  In a prospective, observational case-control study, we aimed to assess sun exposure after diagnosis of CMM by objective measurements to substantiate advice about sun...... months and 6 years before the start of the study. During a summer season participants filled in sun exposure diaries daily and wore personal electronic UVR dosimeters in a wristwatch that continuously measured time-stamped UVR doses in standard erythema dose. Results  The UVR dose of recently diagnosed...

  18. UV Photography Shows Hidden Sun Damage

    Science.gov (United States)

    ... mcat1=de12", ]; for (var c = 0; c UV photography shows hidden sun damage A UV photograph gives ... developing skin cancer and prematurely aged skin. Normal photography UV photography 18 months of age: This boy's ...

  19. Nilaja Sun's "No Child...": Reflections on Success

    Science.gov (United States)

    Sun, Nilaja; Alexander, Phillip; Huldeen, Branden; Russell, Ron; Friedman, Melissa

    2007-01-01

    This article describes Nilaja Sun's groundbreaking one-woman show about a TA, her students, and her school, and includes interviews with the author/performer, an excerpt of the work, and a discussion of the organization behind it.

  20. La historia lingüística andina : una visión de consenso en transformación.

    NARCIS (Netherlands)

    Adelaar, W.F.H.; Malvestitti, M.; Dreidemie, P.

    2014-01-01

    La investigación histórica y lingüística de las lenguas andinas ha sido el objeto de un consenso relativamente general durante varias décadas. La presente contribución se propone dar un inventario de unas propuestas recientes de carácter radical, que ponen en cuestión los fundamentos de aquel consen

  1. La historia lingüística andina : una visión de consenso en transformación.

    NARCIS (Netherlands)

    Adelaar, W.F.H.; Malvestitti, M.; Dreidemie, P.

    2014-01-01

    La investigación histórica y lingüística de las lenguas andinas ha sido el objeto de un consenso relativamente general durante varias décadas. La presente contribución se propone dar un inventario de unas propuestas recientes de carácter radical, que ponen en cuestión los fundamentos de aquel consen

  2. La historia lingüística andina : una visión de consenso en transformación.

    NARCIS (Netherlands)

    Adelaar, W.F.H.; Malvestitti, M.; Dreidemie, P.

    2014-01-01

    La investigación histórica y lingüística de las lenguas andinas ha sido el objeto de un consenso relativamente general durante varias décadas. La presente contribución se propone dar un inventario de unas propuestas recientes de carácter radical, que ponen en cuestión los fundamentos de aquel

  3. Actitudes lingüísticas en Uruguay. Tensiones entre la variedad y la identidad

    Directory of Open Access Journals (Sweden)

    Elizabeth García de los Santos

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de los hablantes nativos de español de la ciudad de Montevideo hacia al español de Uruguay y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigaciones (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes previamente estratificada con las variables de edad, sexo y nivel socioeconómico. Los resultados presentan el grado de identificación de los hablantes frente a su variedad del español (creencias, lealtad hacia la norma propia y las actitudes de los hablantes respecto a las variedades entendidas como de mayor o menor prestigio; se encuentran ciertas regularidades en las causas que determinan estas actitudes. El estudio analizar el grado de tolerancia a las diferencias lingüísticas de acuerdo a distintos géneros discursivos (noticias de radio y televisión, información telefónica, publicidades y los resultados muestran que el contexto y el medio de comunicación son importantes para la manera en la que el hablante reacciona al uso del lenguaje. Abstract This article analyzes the linguistic attitudes of native Spanish-speakers from Montevideo towards Spanish spoken in Uruguay and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. The results describe the degree of identification of the speakers with their own variety of Spanish (beliefs, loyalty to the norm and their attitudes toward linguistic varieties of high or low prestige, and the findings

  4. Actitudes lingüísticas de los hablantes de San Salvador, El Salvador

    Directory of Open Access Journals (Sweden)

    Erick Rivera Orellana

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de San Salvador hacia al español de El Salvador y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 personas estratificada con las variables de edad, sexo y nivel socioeconómico. Los estudios sobre actitudes lingüísticas en el país son escasos y este es el estudio que más dimensiones abarca respecto de cómo los salvadoreños que habitan en la capital se identifican con el idioma que hablan, cómo valoran o califican las formas de hablar de los habitantes de su entorno y cómo reaccionan ante formas de hablar el español en otros países, tanto de aquellos que conocen directamente como de otros con los cuales tienen una relación indirecta, principalmente a través de los medios de comunicación. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from San Salvador towards Spanish spoken in El Salvador and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. Studies of linguistic attitudes are scarce in the country and this research study is the first one with a broad scope regarding how people living in the capital identify themselves with the way they speak; how they value or characterize the way people around them speak, and how they react to the way people speak Spanish in other countries that they know personally or through

  5. The Sun murrab Baltimaadesse ja Soome

    Index Scriptorium Estoniae

    2008-01-01

    Aprillis andis ansambel Tanel Padar & The Sun Soomes, Lätis, Leedus ja Eestis üksteist kontserti. Heliplaadi "Here Gomes The Sun" lugu "Hopelessness You" on Soome raadiote tipp 300s neljakümnendal kohal, lugu "Learn the game" on Leedu FM99 raadios 33 enim mängitava loo seas, laul "One of those days" saavutas Läti raadio SWH rokkmuusika edetabelis teise koha.

  6. Optimal control of sun tracking solar concentrators

    Science.gov (United States)

    Hughes, R. O.

    1979-01-01

    Application of the modern control theory to derive an optimal sun tracking control for a point focusing solar concentrator is presented. A standard tracking problem converted to regulator problem using a sun rate input achieves an almost zero steady state tracking error with the optimal control formulation. However, these control techniques are costly because optimal type algorithms require large computing systems, thus they will be used mainly as comparison standards for other types of control algorithms and help in their development.

  7. The Sun murrab Baltimaadesse ja Soome

    Index Scriptorium Estoniae

    2008-01-01

    Aprillis andis ansambel Tanel Padar & The Sun Soomes, Lätis, Leedus ja Eestis üksteist kontserti. Heliplaadi "Here Gomes The Sun" lugu "Hopelessness You" on Soome raadiote tipp 300s neljakümnendal kohal, lugu "Learn the game" on Leedu FM99 raadios 33 enim mängitava loo seas, laul "One of those days" saavutas Läti raadio SWH rokkmuusika edetabelis teise koha.

  8. Prof WANG Xiao-yun's Experience in Treating Climacteric Syndrome from the Pathogenesis of Kidney Deficiency and Liver Stagnancy

    Institute of Scientific and Technical Information of China (English)

    XU Ying; LIU Jian; WANG Xiao-yun

    2010-01-01

    @@ Prof. WANG Xiao-yun, a chief physician in the Second Affiliated Hospital of Guangzhou TCM University (Guangdong Provincial Hospital of TCM), is a leading physician, professor, and the supervisor of doctoral students in the national key subject of TCM gynecology. Having been engaged in TCM gynecological clinical practice and scientific researches for about 30 years, Prof. WANG has obtained rich experience in the treatment of obstinate and miscellaneous diseases of gynecology, especially in the analysis of pathogenesis and differential treatment of climacteric syndrome.

  9. Ideologías lingüísticas y chamanismo entre los indígenas yukuna-matapi

    Directory of Open Access Journals (Sweden)

    Camilo Alberto Robayo

    2012-01-01

    Full Text Available La concepción del lenguaje de los hablantes de la lengua kamejeya, los yukuna- matapí del Amazonas colombiano, se estudia con base en información etnográfica y lingüística. Se presenta el enfoque de los planteamientos sobre el lenguaje del coinvestigador indígena Uldarico Matapí y luego se discute el concepto de ideología lingüística, desde la perspectiva de M. Rosaldo (1982 y A. Duranti (1993, para reflexionar sobre los supuestos que subyacen a cualquier concepción del lenguaje, incluida la de los antropólogos lingüistas. Una vez examinadas las particularidades de ciertas representaciones sobre las formas de comunicación en la región amazónica, se retoma la idea de animismo de Ph. Descola (1996 para entender la importancia de la perspectiva chamanística del mundo de los hablantes kamejeya. Se sostiene que el sentido de la vista proporciona unas metáforas para el saber y el poder del chamán, donde el lenguaje proporciona el armazón.

  10. Ling's Adsorption Theory as a Mechanism of Membrane Potential Generation Observed in Both Living and Nonliving Systems.

    Science.gov (United States)

    Tamagawa, Hirohisa; Funatani, Makoto; Ikeda, Kota

    2016-01-26

    The potential between two electrolytic solutions separated by a membrane impermeable to ions was measured and the generation mechanism of potential measured was investigated. From the physiological point of view, a nonzero membrane potential or action potential cannot be observed across the impermeable membrane. However, a nonzero membrane potential including action potential-like potential was clearly observed. Those observations gave rise to a doubt concerning the validity of currently accepted generation mechanism of membrane potential and action potential of cell. As an alternative theory, we found that the long-forgotten Ling's adsorption theory was the most plausible theory. Ling's adsorption theory suggests that the membrane potential and action potential of a living cell is due to the adsorption of mobile ions onto the adsorption site of cell, and this theory is applicable even to nonliving (or non-biological) system as well as living system. Through this paper, the authors emphasize that it is necessary to reconsider the validity of current membrane theory and also would like to urge the readers to pay keen attention to the Ling's adsorption theory which has for long years been forgotten in the history of physiology.

  11. How to Observe the Sun Safely

    CERN Document Server

    Macdonald, Lee

    2012-01-01

    How to Observe the Sun Safely, Second Edition gives all the basic information and advice the amateur astronomer needs to get started in observing our own ever-fascinating star. Unlike many other astronomical objects, you do not need a large telescope or expensive equipment to observe the Sun. And it is possible to take excellent pictures of the Sun with today's low-cost digital cameras! This book surveys what is visible on the Sun and then describes how to record solar features and measure solar activity levels. There is also an account of how to use H-alpha and Calcium-K filters to observe and record prominences and other features of the solar chromosphere, the Sun's inner atmosphere. Because we are just entering a period of high activity on the Sun, following a long, quiet period, this is a great time to get involved with solar observing. Still emphasizing safety first, this Second Edition reflects recent and exciting advances in solar observing equipment. Chapters 6 through 8 have been completely revised ...

  12. Orientation in birds. The sun compass.

    Science.gov (United States)

    Schmidt-Koenig, K; Ganzhorn, J U; Ranvaud, R

    1991-01-01

    The sun compass was discovered by G. Kramer in caged birds showing migratory restlessness. Subsequent experiments with caged birds employing directional training and clock shifts, carried out by Hoffman and Schmidt-Koenig, showed that the sun azimuth is used, and the sun altitude ignored. In the laboratory, McDonald found the accuracy to be +/- 3 degrees(-)+/- 5 degrees. According to Hoffmann and Schmidt-Koenig, caged birds trained at medium northern latitudes were able to allow for the sun's apparent movement north of the arctic circle, but not in equatorial and trans-equatorial latitudes. In homing experiments, and employing clock shifts, Schmidt-Koenig demonstrated that the sun compass is used by homing pigeons during initial orientation. This finding is the principal evidence for the existence of a map-and-compass navigational system. Pigeons living in equatorial latitudes utilize the sun compass even under the extreme solar conditions of equinox, achieving angular resolution of about 3 degrees in homing experiments. According to preliminary analyses, the homing pigeons' ephemerides are retarded by several weeks (Ranvaud, Schmidt-Koenig, Ganzhorn et al.).

  13. SunPy: Solar Physics in Python

    Science.gov (United States)

    Ryan, Daniel; Christe, Steven; Mumford, Stuart; Perez Suarez, David; Ireland, Jack; Shih, Albert Y.; Inglis, Andrew; Liedtke, Simon; Hewett, Russel

    2015-04-01

    SunPy is a community-developed open-source software library for solar physics. It is written in Python, a free, cross-platform, general-purpose, high-level programming language which is being increasingly adopted throughout the scientific community as well as further afield. This has resulted in a wide array of software packages useful for scientific computing, from numerical computation (NumPy, SciPy, etc.), to machine learning (scifitlearn), to visualization and plotting (matplotlib). SunPy aims to provide required specialised software for analysing solar and heliospheric datasets in Python. The current version is 0.5 with 0.6 expected to be released later this year. SunPy provides solar data access through integration with the Virtual Solar Observatory (VSO), the Heliophysics Event Knowledgebase (HEK), and the HELiophysics Integrated Observatory (HELIO) webservices. It supports common data types from major solar missions such as images (SDO/AIA, STEREO, PROBA2/SWAP etc.), time series (GOES/XRS, SDO/EVE, PROBA2/LYRA), and radio spectra (e-Callisto, STEREO/WAVES). SunPy’s code base is publicly available through github.com and can be contributed to by anyone. In this poster we demonstrate SunPy’s functionality and future goals of the project. We also encourage interested users to become involved in further developing SunPy.

  14. análisis lingüístico-discursivo de relatos y argumentos

    Directory of Open Access Journals (Sweden)

    Adriana Marcela Callegaro

    2007-01-01

    Full Text Available Entre los años 2005 y 2006 se llevó a cabo una investigación realizada con alumnos aspirantes al ingreso en la Universidad Nacional de La Matanza (República Argentina. Se indagaron las representaciones acerca de los estudios universitarios con las que los estudiantes reflexionan esta instancia, a través de encuestas, grupos focales y elaboración de relatos escritos. En este artículo se presenta un recorte de dicha investigación que surge del análisis de los relatos autobiográficos producidos por los alumnos. Se analiza la utilización recurrente de entimemas y topoi como argumentos de validez universal que permiten reconstruir el mundo de creencias y representaciones de los autores de estas historias. El análisis lingüístico-discursivo de dichas producciones escritas permite relevar la fuerte vinculación existente entre las aspiraciones personales y las expectativas familiares, al tiempo en que se desdibujan los límites entre deseo y deber, lo público y lo privado, realización personal y realización profesional.

  15. Microarray Analysis Reveals the Molecular Basis of Antiarthritic Activity of Huo-Luo-Xiao-Ling Dan

    Directory of Open Access Journals (Sweden)

    Hua Yu

    2013-01-01

    Full Text Available Rheumatoid arthritis (RA is a chronic inflammatory disease of autoimmune origin. Huo-luo-xiao-ling dan (HLXL is an herbal mixture that has been used in traditional Chinese medicine over several decades to treat chronic inflammatory diseases including RA. However, the mechanism of the anti-arthritic action of this herbal remedy is poorly understood at the molecular level. In this study, we determined by microarray analysis the effects of HLXL on the global gene expression profile of the draining lymph node cells (LNC in the rat adjuvant arthritis (AA model of human RA. In LNC restimulated in vitro with the disease-related antigen mycobacterial heat-shock protein 65 (Bhsp65, 84 differentially expressed genes (DEG (64 upregulated and 20 downregulated versus 120 DEG (94 upregulated and 26 downregulated were identified in HLXL-treated versus vehicle (Water-treated rats, respectively, and 62 DEG (45 upregulated and 17 downregulated were shared between the two groups. The most affected pathways in response to HLXL treatment included immune response, inflammation, cellular proliferation and apoptosis, and metabolic processes, many of which are directly relevant to arthritis pathogenesis. These results would advance our understanding of the mechanisms underlying the anti-arthritic activity of HLXL.

  16. Fermented Chinese Formula Shuan-Tong-Ling Protects Brain Microvascular Endothelial Cells against Oxidative Stress Injury

    Directory of Open Access Journals (Sweden)

    Lingjing Tan

    2016-01-01

    Full Text Available Fermented Chinese formula Shuan-Tong-Ling (STL, composed of fourteen medicinal herbs, was an experiential formula by Dr. Zhigang Mei for treating vascular encephalopathy, but the underlying mechanisms remained unknown. In this study, we aimed to investigate the protective effects of fermented STL on hydrogen peroxide- (H2O2- induced injury in rat brain microvascular endothelial cells (BMECs and the possible mechanisms. Cultured BMECs were treated with H2O2, STL, or nicotinamide (NAM, a SIRT1 inhibitor. Then, 3-(4,5-dimethylthiazol-2-yl-2,5-diphenyl-2H-tetrazolium bromide (MTT assay was employed to detect cell proliferation and senescence-associated beta-galactosidase (SA-β-gal was used to examine cell senescence. Cell nuclei were observed by 4′,6-diamidino-2-phenylindole. Additionally, changes in reactive oxygen species (ROS, superoxide dismutase (SOD, and glutathione (GSH levels were measured. Expression of SIRT1, p21, and PGC-1α was determined by western blot. Cell proliferation significantly increased with STL treatment in a dose-dependent manner. H2O2 treatment could intensify cell senescence and nuclei splitting or pyknosis. With STL treatment, the reduced ROS level was accompanied by increased SOD and GSH activity. Further assays showed upregulation of SIRT1 and PGC-1α and downregulation of p21 after STL treatment. The results revealed that STL could protect BMECs against oxidative stress injury at least partially through the SIRT1 pathway.

  17. Nuestra variedad lingüística como variedad biológica

    Directory of Open Access Journals (Sweden)

    Danilo Salamanca

    2014-05-01

    Full Text Available El estudio se centra en señalar problemas esenciales sobre las consecuencias culturales ante la pérdida de idiomas ancestrales, en particular referido al patrimonio lingüístico indígena centroamericano. Señala algunas relaciones entre este proceso y las discusiones sobre la protección de los ecosistemas biológicos de la región, y llama la atención sobre las políticas que existen o deberían existir, para recuperar y preservar tanto el componente cultural (los idiomas como el natural. This study examines essential problems related to the cultural consequences due to the loss of ancestral languages, especially Central American Indigenous languages. It mentions relationships between this process and discussions about the protection of biological ecosystems in the region, and addresses policies that exist, or should exist, to recover and preserve both cultural (linguistic and natural components.

  18. Teorías lingüísticas del humor verbal

    Directory of Open Access Journals (Sweden)

    M. Ángeles Torres Sánchez

    2011-04-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} En este articulo se ofrece una revisión crítica de la obra Linguistics theories of humor (Atrardo, 1994, que constituye uno de las pocos trabajos básicos para el estudio del humor verbal desde una perspectiva Lingüística.

  19. Early modern humans and morphological variation in Southeast Asia: fossil evidence from Tam Pa Ling, Laos.

    Directory of Open Access Journals (Sweden)

    Fabrice Demeter

    Full Text Available Little is known about the timing of modern human emergence and occupation in Eastern Eurasia. However a rapid migration out of Africa into Southeast Asia by at least 60 ka is supported by archaeological, paleogenetic and paleoanthropological data. Recent discoveries in Laos, a modern human cranium (TPL1 from Tam Pa Ling's cave, provided the first evidence for the presence of early modern humans in mainland Southeast Asia by 63-46 ka. In the current study, a complete human mandible representing a second individual, TPL 2, is described using discrete traits and geometric morphometrics with an emphasis on determining its population affinity. The TPL2 mandible has a chin and other discrete traits consistent with early modern humans, but it retains a robust lateral corpus and internal corporal morphology typical of archaic humans across the Old World. The mosaic morphology of TPL2 and the fully modern human morphology of TPL1 suggest that a large range of morphological variation was present in early modern human populations residing in the eastern Eurasia by MIS 3.

  20. Nonequilibrium behaviors of the three-dimensional Heisenberg model in the Swendsen-Wang algorithm.

    Science.gov (United States)

    Nonomura, Yoshihiko; Tomita, Yusuke

    2016-01-01

    Recently, it was shown [Y. Nonomura, J. Phys. Soc. Jpn. 83, 113001 (2014)JUPSAU0031-901510.7566/JPSJ.83.113001] that the nonequilibrium critical relaxation of the two-dimensional (2D) Ising model from a perfectly ordered state in the Wolff algorithm is described by stretched-exponential decay, and a universal scaling scheme was found to connect nonequilibrium and equilibrium behaviors. In the present study we extend these findings to vector spin models, and the 3D Heisenberg model could be a typical example. To evaluate the critical temperature and critical exponents precisely using the above scaling scheme, we calculate nonequilibrium ordering from the perfectly disordered state in the Swendsen-Wang algorithm, and we find that the critical ordering process is described by stretched-exponential growth with a comparable exponent to that of the 3D XY model. The critical exponents evaluated in the present study are consistent with those in previous studies.

  1. Nonequilibrium behaviors of the three-dimensional Heisenberg model in the Swendsen-Wang algorithm

    Science.gov (United States)

    Nonomura, Yoshihiko; Tomita, Yusuke

    2016-01-01

    Recently, it was shown [Y. Nonomura, J. Phys. Soc. Jpn. 83, 113001 (2014), 10.7566/JPSJ.83.113001] that the nonequilibrium critical relaxation of the two-dimensional (2D) Ising model from a perfectly ordered state in the Wolff algorithm is described by stretched-exponential decay, and a universal scaling scheme was found to connect nonequilibrium and equilibrium behaviors. In the present study we extend these findings to vector spin models, and the 3D Heisenberg model could be a typical example. To evaluate the critical temperature and critical exponents precisely using the above scaling scheme, we calculate nonequilibrium ordering from the perfectly disordered state in the Swendsen-Wang algorithm, and we find that the critical ordering process is described by stretched-exponential growth with a comparable exponent to that of the 3D X Y model. The critical exponents evaluated in the present study are consistent with those in previous studies.

  2. Collapse transitions in a flexible homopolymer chain: application of the Wang-Landau algorithm.

    Science.gov (United States)

    Seaton, D T; Wüst, T; Landau, D P

    2010-01-01

    The thermodynamic behavior of a continuous homopolymer is described using the Wang-Landau algorithm for chain lengths up to N=561. The coil-globule and liquid-solid transitions are analyzed in detail with traditional thermodynamic and structural quantities. The behavior of the coil-globule transition is well within theoretical and computational predictions for all chain lengths, while the behavior of the liquid-solid transition is much more susceptible to finite-size effects. Certain "magic number" lengths (N=13,55,147,309,561) , whose minimal energy states offer unique icosahedral geometries, are discussed along with chains residing between these special cases. The low temperature behavior near the liquid-solid transition is rich in structural transformations for certain chain lengths, showing many similarities to the behavior of classical clusters with similar interaction potentials. General comments are made on this size dependent behavior and how it affects transition behavior in this model.

  3. Characterizing folding funnels with replica exchange Wang-Landau simulation of lattice proteins.

    Science.gov (United States)

    Shi, Guangjie; Wüst, Thomas; Landau, David P

    2016-11-01

    We have studied the folding of ribonuclease A by mapping it onto coarse-grained lattice protein models. With replica exchange Wang-Landau sampling, we calculated the free energy vs end-to-end distance as a function of temperature. A mapping to the famous hydrophobic-polar (HP) model shows a relatively shallow folding funnel and flat free energy minimum, reflecting the high degeneracy of the ground state. In contrast, extending the HP model with an additional "neutral" monomer type (i.e., a mapping to the three-letter H0P model) has a well developed, rough free energy funnel with a low degeneracy ground state. In both cases, folding funnels are asymmetric with temperature dependent shape.

  4. Structural properties and thermodynamics of water clusters: a Wang-Landau study.

    Science.gov (United States)

    Yin, Junqi; Landau, D P

    2011-02-21

    The temperature dependence of structural properties and thermodynamic behavior of water clusters has been studied using Wang-Landau sampling. Four potential models, simple point charge/extended (SPC/E), transferable intermolecular potential 3 point (TIP3P), transferable intermolecular potential 4 point (TIP4P), and Gaussian charge polarizable (GCP), are compared for ground states and properties at finite temperatures. Although the hydrogen bond energy and the distance of the nearest-neighbor oxygen pair are significantly different for TIP4P and GCP models, they approach to similar ground state structures and melting transition temperatures in cluster sizes we considered. Comparing with TIP3P, SPC/E model provides properties closer to that of TIP4P and GCP.

  5. Replica-exchange Wang-Landau simulations of the H0P lattice protein model

    Science.gov (United States)

    Shi, Guangjie; Wüst, Thomas; Li, Ying Wai; Landau, David P.

    The hydrophobic-polar (HP) lattice protein model has been the subject of intensive investigation in an effort to aid our understanding of protein folding. However, the high ground state degeneracies caused by its simplification stands in contrast to the generally unique native states of natural proteins. Here we proposed a simple modification, by introducing a new type of ``neutral'' monomer, 0, i.e. neither hydrophobic nor polar, thus rendering the model more realistic without increasing the difficulties of sampling significantly. With the replica exchange Wang-Landau (REWL) scheme we investigated several widely studied HP proteins and their H0P counterparts. Dramatic differences in both ground state and thermodynamic properties have been found. For example, the H0P version of Crambin shows more clear two-step folding and 3 order of magnitudes less ground state degeneracy than its HP counterpart. Supported by NSF.

  6. Thermodynamics and structural properties of a confined HP protein determined by Wang-Landau simulation

    Energy Technology Data Exchange (ETDEWEB)

    Pattanasiri, Busara [Mahidol University, Bangkok 10400, Thailand; Li, Ying Wai [ORNL; Landau, David P [University of Georgia, Athens, GA; Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Triampo, Wannapong [Mahidol University, Bangkok 10400, Thailand

    2013-01-01

    We used Wang-Landau sampling with inventive Monte Carlo moves to study the influence of surface characteristics on physical behavior of a hydrophobic-polar (HP) lattice protein model confined between two attractive surfaces. Three types of surfaces, namely, surfaces that attract: (a) all monomers; (b) only P monomers; or (c) only H monomers, have been considered. After obtaining the densities of states, we then found the thermodynamic and structural quantities, such as specific heat, number of surface contacts, and number of hydrophobic interaction pairs. A few conformational transitions , e.g., debridging process and hydrophobic core formation, can be identified based on an analysis of these quantities. Depending on the surface types, these transitions take place at different temperatures, while the ground state configurations show structural variations. These scenarios are confirmed by snapshots of typical states of the systems.

  7. Structural properties and thermodynamics of water clusters: A Wang-Landau study

    Science.gov (United States)

    Yin, Junqi; Landau, D. P.

    2011-02-01

    The temperature dependence of structural properties and thermodynamic behavior of water clusters has been studied using Wang-Landau sampling. Four potential models, simple point charge/extended (SPC/E), transferable intermolecular potential 3 point (TIP3P), transferable intermolecular potential 4 point (TIP4P), and Gaussian charge polarizable (GCP), are compared for ground states and properties at finite temperatures. Although the hydrogen bond energy and the distance of the nearest-neighbor oxygen pair are significantly different for TIP4P and GCP models, they approach to similar ground state structures and melting transition temperatures in cluster sizes we considered. Comparing with TIP3P, SPC/E model provides properties closer to that of TIP4P and GCP.

  8. Wang-Landau sampling of protein adsorption using the HP model

    Science.gov (United States)

    Li, Ying-Wai; Landau, D. P.; Wuest, T.

    2011-03-01

    We have applied Wang-Landau sampling with appropriate trial moves to investigate the thermodynamics and structural properties of lattice hydrophobic-polar heteropolymers (commonly known as the HP protein model) interacting with an attractive substrate. We estimate the density of states of the system, from which the partition function and all thermodynamic quantities, e.g. specific heat, radius of gyration, end-to-end distance and surface contacts, can be calculated. ``Transitions'' between ``phases'' are then identified based on a comprehensive analysis of these observables. Generally speaking, three transition processes are observed: adsorption-desorption, collapse (formation of hydrophobic core), and ``flattening'' of adsorbed structures. These have been confirmed by ``snapshots'' of typical states of the system. Depending on the surface attractive strength, these transitions take place in different order upon cooling, giving rise to different thermodynamic behaviors. Such dependence of folding hierarchy on the surface attraction is found to be universal for different HP sequences. Research supported by NSF.

  9. Surface adsorption of lattice HP proteins: Thermodynamics and structural transitions using Wang-Landau sampling

    Science.gov (United States)

    Li, Ying Wai; Wüst, Thomas; Landau, David P.

    2012-12-01

    Wang-Landau sampling has been applied to investigate the thermodynamics and structural properties of a lattice hydrophobic-polar heteropolymer (the HP protein model) interacting with an attractive substrate. For simplicity, we consider a short HP sequence consisting of only 36 monomers interacting with a substrate which attracts all monomers in the sequence. The conformational “phase transitions” have been identified by a canonical analysis of the specific heat and suitable structural observables. Three major “transitions”, namely, adsorption, hydrophobic core formation and “flattening” of adsorbed structures, are observed. Depending on the surface attractive strength relative to the intra-protein attraction among the H monomers, these processes take place in different sequences upon cooling.

  10. Collapse transitions in a flexible homopolymer chain: Application of the Wang-Landau algorithm

    Science.gov (United States)

    Seaton, D. T.; Wüst, T.; Landau, D. P.

    2010-01-01

    The thermodynamic behavior of a continuous homopolymer is described using the Wang-Landau algorithm for chain lengths up to N=561 . The coil-globule and liquid-solid transitions are analyzed in detail with traditional thermodynamic and structural quantities. The behavior of the coil-globule transition is well within theoretical and computational predictions for all chain lengths, while the behavior of the liquid-solid transition is much more susceptible to finite-size effects. Certain “magic number” lengths (N=13,55,147,309,561) , whose minimal energy states offer unique icosahedral geometries, are discussed along with chains residing between these special cases. The low temperature behavior near the liquid-solid transition is rich in structural transformations for certain chain lengths, showing many similarities to the behavior of classical clusters with similar interaction potentials. General comments are made on this size dependent behavior and how it affects transition behavior in this model.

  11. Characterizing folding funnels with replica exchange Wang-Landau simulation of lattice proteins

    Science.gov (United States)

    Shi, Guangjie; Wüst, Thomas; Landau, David P.

    2016-11-01

    We have studied the folding of ribonuclease A by mapping it onto coarse-grained lattice protein models. With replica exchange Wang-Landau sampling, we calculated the free energy vs end-to-end distance as a function of temperature. A mapping to the famous hydrophobic-polar (HP) model shows a relatively shallow folding funnel and flat free energy minimum, reflecting the high degeneracy of the ground state. In contrast, extending the HP model with an additional "neutral" monomer type (i.e., a mapping to the three-letter H0P model) has a well developed, rough free energy funnel with a low degeneracy ground state. In both cases, folding funnels are asymmetric with temperature dependent shape.

  12. Wang Jianbing’s View of Prose%王剑冰的散文视界

    Institute of Scientific and Technical Information of China (English)

    刘海燕

    2016-01-01

    Wang Jianbing has a unique vision. He always writes out elegant prose with his own spiritual track. Meanwhile,he is good at writing women and water from the perspective of character. In his prose,he writes the life of mountains and water and respects the original ecology of life. His writing perspective of character makes the prose with a sense of the scene and a sense of trust. Wang Jianbing focuses on writing the dialogue which at least has two perspectives. He pays more attention to the expression of ideas and makes every effort to touch history and the un-touched area of darkness through the sensitivity and power of thoughts. He is a writer with a strong stylish awareness and the art of poem and fiction is incorporated into his prose.%王剑冰有独特的视界,他总能写出属于他自己的眼睛看到的这一个,烙上了他心灵印迹的这一个;他擅长写女性和水,从人物的视野看山水,写山水里的人生,尊重生活的原生态,这种人物化的视角,更具有现场感和信任感;他注重写对话,他的对话至少是两种视角,他越来越重视思想的表达,以思想的敏感和力度去触及历史,触及那些无人触及的幽暗区域;他是一个很有文体意识的作家,他的散文作品融入了诗艺和小说艺术。

  13. 王拯非王鹏运之词师考论%A Textual Research on the Question that Wang Zheng was not the Word Teacher of Wang Pengyun

    Institute of Scientific and Technical Information of China (English)

    朱存红

    2012-01-01

    The Ci's spirit and style of Ci poet have close relationship to their teachers' instruction in the process of Ci learning. In late Qing Dynasty, the famous Ci poet Wang Zheng was Wang Pengyun's elder relative. Wang Pengyun's mother was the niece of Wang Zheng. When Wang Bida, Pengyun's father, went to Beijing for the National Examination, he stayed in Zheng's home and was in frequent contact with Zheng. The research of the life trace of Zheng and Pengyun indicates that there was little possibility that the two men had met. Judging from the age Pengyun was learning Ci, even if they two met once, Pengyun is so young that he could only consult the skills of poems and articles, not Ci. Wang Zheng had died when Wang Pengyun began to learn Ci. According to the praise of Zheng's Ci by Pengyun, he could only be a disciple who had not taken lessons directly under Zheng in Ci learning.%词人在学词过程中受到何人的指点对词人的词学宗尚和词风的形成关系甚大。清代后期著名词人王拯是王鹏运的前辈亲戚。王鹏运之母为王拯外甥女,其父王必达进京应试时即住王拯家,并且与王拯交往颇多。从王拯与王鹏运二人生平行迹等来考察,二人见过面的可能性不大;从王鹏运学词年代来判断,即使二人见过面,王鹏运可能向王拯请教的也只能是诗文之道,王鹏运开始学词时王拯已去世。根据王鹏运对王拯词作的推崇,王鹏运可谓王拯的私淑词弟子。

  14. Origin Trace of Ten Schools ' Annotation on Sun Tzu%《孙子十家注》源流轨迹

    Institute of Scientific and Technical Information of China (English)

    谢德; 谢祥皓

    2012-01-01

    《宋史·艺文志》著录吉天保《十家孙子会注》为《孙子十家注》的原始著录,其源则为各家注本的出现,其中依次包括曹操、孟氏、李筌、贾林、杜佑、杜牧、陈皋、何延锡、王皙、梅尧臣、张预十一家注。吉氏成书后重要的刊本则有:明正统《道藏》刊《孙子注解》;明谈恺、李棣、黄邦彦等刊《孙子集注》;清孙星衍刊《孙子十家注》;及1961年中华书局上海编辑所影刊的《宋本十一家注孙子》。%The original works of Ten Schools' Annotation on Sun Tzu is Ji Tianbao's Ten Schools' Collective Annotation on Sun Tzu recorded in Art and Literature Magazine of The History of Song Dynasty. The origin is the appearance of the annotation of several schools,including the annotation of Cao Cao,Meng,Li Quan,Jia Lin,Du You,Chen Gao, Chen Yanxi, Wang Xi, Mei Raochen and Du Yu. The important versions after Ji Tianbao published his book include Annotation on Sun Tzu published in Taoist Canon in Ming Dynasty,Collective Annotation on Sun Tzu by Tan Kai,Li Di and Huang Bangyan in Ming Dynasty,Ten Schools' Annotation on Sun Tzu by Sun Xingyan in Qing Dynasty and Song Edition of Eleven Schools ' Annotation on Sun Tzu .

  15. The Feelings of Twenty Pieces of Wang Wei’s Wang Chuan Collection%王维《辋川集》二十首的情感心态

    Institute of Scientific and Technical Information of China (English)

    袁庆

    2015-01-01

    《辋川集》二十首是王维后期山水诗的代表作。王维身在朝廷却心存山野,亦官亦隐,纵情辋川山水寓情于诗文。这二十首诗语短情长,清幽空寂的诗境中包含着诗人特殊的情感心态,既有入世的惆怅迷惘,也有避世的幽寂孤独,还有忘世的潇洒愉悦。《辋川集》二十首,是王维仕隐复杂情感心态交织的集中写照。%Twenty pieces of Wang Chuan collection are the representative works of Wang Wei's later scenic poems. Wang Wei was in court but he still missed the wildness,being an official as well as a hermit,indulging in the landscape feeling in poetry. The twenty poems are short and concise,but with deep affection,quietness and loneliness implying in the poetic conception and containing the poet's abun⁃dant emotion. These poems not only have the world melancholy confusion,but also retire lonesome loneliness,and the feeling of forgetting about the world of freedom and pleasure. Twenty pieces of Wang Chuan collection is a concentrated reflection of the seclusion complex emotion and mood of Wang Wei as an official and a hermit.

  16. Estudio preliminar del ecosistema lingüístico de Madre de Dios en la variedad del castellano amazónico

    Directory of Open Access Journals (Sweden)

    Fredy Rolando Dueñas-Linares

    2014-07-01

    Full Text Available El estudio sobre  “El ecosistema lingüístico de Madre de Dios y la variedad del castellano amazónico de Tambopata y Tahuamanu” fue de carácter cualitativo, de nivel exploratorio, descriptivo, explicativo que tuvo como objetivo Conocer el Ecosistema lingüístico caracterizando la variedad del castellano amazónico de las provincias de Tambopata y Tahuamanu, pues a base de entrevistas abiertas y revisión bibliográfica se logró analizar y describir algunos aspectos importantes de los rasgos lingüísticos y extralingüísticos del castellano amazónico; además se realizó una recopilación completa de los grupos lingüísticos existentes actualmente.  Se entrevistó a 120 personas; la primera fase consistió en la aplicación de las entrevistas y reuniones con grupos de docentes de las instituciones educativas locales que contribuyeron con ejemplos de frases usuales en su medio local, posteriormente se transcribieron de manera fidedigna las entrevistas, y se concluye que el ecosistema lingüístico de Madre de Dios, está conformado por lenguas que corresponden a agrupaciones de pueblos amazónicos  de las familias lingüísticas Arawak, Pano, Takana y Harakmbut, Shipibo-Conibo, y Kichwa Runa del Napo, Pertenecientes a la familia lingüística Quechua.El español  en su variante  amazónica es la lengua mayoritaria, seguido del quechua, del aymara,  el harakmbut y lenguas extranjeras como el inglés, italiano, ruso, francés.

  17. Estudio preliminar del ecosistema lingüístico de Madre de Dios en la variedad del castellano amazónico

    Directory of Open Access Journals (Sweden)

    Fredy Dueñas Linares

    2014-06-01

    Full Text Available El estudio sobre  “El ecosistema lingüístico de Madre de Dios y la variedad del castellano amazónico de Tambopata y Tahuamanu” fue de carácter cualitativo, de nivel exploratorio, descriptivo, explicativo que tuvo como objetivo Conocer el Ecosistema lingüístico caracterizando la variedad del castellano amazónico de las provincias de Tambopata y Tahuamanu, pues a base de entrevistas abiertas y revisión bibliográfica se logró analizar y describir algunos aspectos importantes de los rasgos lingüísticos y extralingüísticos del castellano amazónico; además se realizó una recopilación completa de los grupos lingüísticos existentes actualmente.  Se entrevistó a 120 personas; la primera fase consistió en la aplicación de las entrevistas y reuniones con grupos de docentes de las instituciones educativas locales que contribuyeron con ejemplos de frases usuales en su medio local, posteriormente se transcribieron de manera fidedigna las entrevistas, y se concluye que el ecosistema lingüístico de Madre de Dios, está conformado por lenguas que corresponden a agrupaciones de pueblos amazónicos de las familias lingüísticas Arawak, Pano, Takana y Harakmbut, Shipibo-Conibo, y Kichwa Runa del Napo, Pertenecientes a la familia lingüística Quechua.El español  en su variante  amazónica es la lengua mayoritaria, seguido del quechua, del aymara,  el harakmbut y lenguas extranjeras como el inglés, italiano, ruso, francés.

  18. The sun and space weather Second Edition

    CERN Document Server

    Hanslmeier, Arnold

    2007-01-01

    This second edition is a great enhancement of literature which will help the reader get deeper into the specific topics. There are new sections included such as space weather data sources and examples, new satellite missions, and the latest results. At the end a comprehensive index is given which will allow the reader to quickly find his topics of interest. The Sun and Space weather are two rapidly evolving topics. The importance of the Sun for the Earth, life on Earth, climate and weather processes was recognized long ago by the ancients. Now, for the first time there is a continuous surveillance of solar activity at nearly all wavelengths. These data can be used to improve our understanding of the complex Sun-Earth interaction. The first chapters of the book deal with the Sun as a star and its activity phenomena as well as its activity cycle in order to understand the complex physics of the Sun-Earth system. The reader will see that there are many phenomena but still no definite explanations and models exis...

  19. The Sun Sense Study: An Intervention to Improve Sun Protection in Children

    Science.gov (United States)

    Glasser, Alice; Shaheen, Magda; Glenn, Beth A.; Bastani, Roshan

    2010-01-01

    Objectives: To assess the effect of a multicomponent intervention on parental knowledge, sun avoidance behaviors, and sun protection practices in children 3-10 years. Methods: A randomized trial at a pediatric clinic recruited 197 caregiver-child pairs (90% parents). Intervention included a brief presentation and brochure for the parent and…

  20. After the Bell: Developing Sun Sense--Learning about Protection from the Sun's Rays

    Science.gov (United States)

    Farenga, Stephen J.; Ness, Daniel

    2008-01-01

    The American Academy of Dermatology (2008) reports that our students will experience 80% of their lifetime exposure to the Sun by the time they are 18. Further, research has demonstrated that continued exposure to the Sun's ultraviolet rays can lead to skin aging, sunburn, immune suppression, ocular melanoma, cataracts, corneal burns, and even…

  1. 77 FR 34122 - Application of Sun Air Express, LLC, d/b/a Sun Air International for Commuter Authority

    Science.gov (United States)

    2012-06-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Office of the Secretary Application of Sun Air Express, LLC, d/b/a Sun Air International for Commuter... to show cause why it should not issue an order finding Sun Air Express, LLC d/b/a Sun...

  2. A sun holiday is a sunburn holiday

    DEFF Research Database (Denmark)

    Petersen, Bibi; Thieden, Elisabeth; Philipsen, Peter Alshede

    2013-01-01

    Many people take holidays in sunny locations with the express aim of sunbathing. This may result in sunburn, which is a risk factor for skin cancer. We investigated 25 Danish sun seekers during a week's holiday in the Canary Islands. The percentage of body surface area with sunburn was determined......-specific UVR doses after adjustment for sun protection factor. Remarkably, we found that all volunteers sunburned at some point. The risk of sunburn correlated significantly with the adjusted body site-specific UVR dose. Furthermore, there was also a significant relationship between the daily UVR dose...... and percentage of body surface area with sunburn. Our study shows that holiday UVR exposure results in a high risk of sunburn, which potentially increases the risk of skin cancer. Possible protection by melanogenesis is insufficient to protect against sunburn during a 1-week sun holiday. Finally, our data...

  3. Precise nuclear physics for the sun

    Energy Technology Data Exchange (ETDEWEB)

    Bemmerer, Daniel

    2012-07-01

    For many centuries, the study of the Sun has been an important testbed for understanding stars that are further away. One of the first astronomical observations Galileo Galilei made in 1612 with the newly invented telescope concerned the sunspots, and in 1814, Joseph von Fraunhofer employed his new spectroscope to discover the absorption lines in the solar spectrum that are now named after him. Even though more refined and new modes of observation are now available than in the days of Galileo and Fraunhofer, the study of the Sun is still high on the agenda of contemporary science, due to three guiding interests. The first is connected to the ages-old human striving to understand the structure of the larger world surrounding us. Modern telescopes, some of them even based outside the Earth's atmosphere in space, have succeeded in observing astronomical objects that are billions of light-years away. However, for practical reasons precision data that are important for understanding stars can still only be gained from the Sun. In a sense, the observations of far-away astronomical objects thus call for a more precise study of the closeby, of the Sun, for their interpretation. The second interest stems from the human desire to understand the essence of the world, in particular the elementary particles of which it consists. Large accelerators have been constructed to produce and collide these particles. However, man-made machines can never be as luminous as the Sun when it comes to producing particles. Solar neutrinos have thus served not only as an astronomical tool to understand the Sun's inner workings, but their behavior on the way from the Sun to the Earth is also being studied with the aim to understand their nature and interactions. The third interest is strictly connected to life on Earth. A multitude of research has shown that even relatively slight changes in the Earth's climate may strongly affect the living conditions in a number of densely

  4. Neptune as a Mirror for the Sun

    Science.gov (United States)

    Kohler, Susanna

    2017-01-01

    How would the Kepler mission see a star like the Sun? We now know the answer to this question due to a creative approach: a new study has used the Kepler K2 mission to detect signals from the Sun reflected off of the surface of Neptune.Asteroseismology uses different oscillation modes of a star to probe its internal structure and properties. [Tosaka]Information in OscillationsKeplers most glamorous work is in discovering new planets around other stars. To successfully do this, however, the spacecraft is also quietly doing a lot of very useful work in the background, characterizing the many stars in our vicinity that planets might be found around.One of the ways Kepler gets information about these stars is from oscillations of the stars intensities. In asteroseismology, we look at oscillatory modes that are caused by convection-driven pressure changes on the inside of the star. All stars with near-surface convection oscillate like this including the Sun and by measuring the oscillations in intensity of these stars, we can make inferences about the stars properties.A Planetary MirrorWe do this by first understanding our Suns oscillations especially well (made easier by the fact that its nearby!). Then we use asteroseimic scaling relations determined empirically that relate characteristics like mass and radius of other stars to those of the Sun, based on the relation between the stars oscillation properties to the Suns.The trouble is, those oscillation properties are difficult to measure, and different instruments often measure different values. For this reason, wed like to measure the Suns oscillations with the same instrument we use to measure other stars oscillations: Kepler.Top panel: Kepler K2 49-day light curve of Neptune. Bottom panel: power density spectrum as a function of frequency (grey). Neptunes rotation frequencies and harmonics appear toward the left side (blue); the excess power due to the solar modes is visible toward the bottom right. The green curve

  5. The Spectrum of Darkonium in the Sun

    CERN Document Server

    Kouvaris, Chris; Nielsen, Niklas Grønlund

    2016-01-01

    Dark matter that gets captured in the Sun may form positronium-like bound states if it self-interacts via light dark photons. In this case, dark matter can either annihilate to dark photons or recombine in bound states which subsequently also decay to dark photons. The fraction of the dark photons that leave the Sun without decaying to Standard Model particles have a characteristic energy spectrum which is a mixture of the direct annihilation process, the decays of ortho- and para- bound states and the recombination process. The ultimate decay of these dark photons to positron-electron pairs (via kinetic mixing) outside the Sun creates a distinct signal that can either identify or set strict constraints on dark photon models.

  6. The spectrum of darkonium in the Sun

    Science.gov (United States)

    Kouvaris, Chris; Langæble, Kasper; Grønlund Nielsen, Niklas

    2016-10-01

    Dark matter that gets captured in the Sun may form positronium-like bound states if it self-interacts via light dark photons. In this case, dark matter can either annihilate to dark photons or recombine in bound states which subsequently also decay to dark photons. The fraction of the dark photons that leave the Sun without decaying to Standard Model particles have a characteristic energy spectrum which is a mixture of the direct annihilation process, the decays of ortho- and para- bound states and the recombination process. The ultimate decay of these dark photons to positron-electron pairs (via kinetic mixing) outside the Sun creates a distinct signal that can either identify or set strict constraints on dark photon models.

  7. The sun since the Bronze Age

    Science.gov (United States)

    Eddy, J. A.

    1976-01-01

    An investigation is conducted concerning the behavior of the sun during the last 7000 years. The C-14 content in carbonaceous fossil material can be used as an indicator regarding the level of solar activity at the time when the carbon was assimilated in the process of photosynthesis. Living trees, such as the bristlecone pine, provide a solar activity record to about 3000 B.C. The record can be extended with the aid of well-preserved dead wood to beyond 5000 B.C. The results of an analysis of solar activity levels as a function of time on the basis of C-14 contents are presented in a graph. Attention is given to the Maunder Minimum, a history of the sun in the last 5000 years, an interpretation of the major C-14 excursions, and the sun and climate history.

  8. 'My Sun' and 'Guided by the Moon'

    Directory of Open Access Journals (Sweden)

    Rebecca Baillie

    2013-07-01

    Full Text Available My Sun and Guided by the Moon (2012 show the heavily pregnant artist with her swollen belly covered in gold and silver leaf. The work is suggestive that the connectivity experienced by an expectant mother, extends outwards, even as far as her relationship with the cosmos. The 'sun' portrait was taken on a bright September morning, and its partner image, the following October, on the night of a full moon. Female cycles and the importance of time passing during a pregnancy are referenced. Interestingly, bearing in mind that the artist gave birth to a son in November, creating the 'moon' portrait felt like a familiar, empowering and yet isolated expression of selfhood, whilst the 'sun/son' version exuded the energy of a collaboration, and stimulated feelings of joy, liberation and potentiality. By seeming contradiction, the boy was born on a full moon, exactly a month to the day that Guided by the Moon was taken.

  9. Semiautomatic sun shots with the WIDIF DIflux

    Directory of Open Access Journals (Sweden)

    J. L. Rasson

    2017-07-01

    Full Text Available The determination of magnetic declination angle entails finding two directions: geographic north and magnetic north. This paper deals with the former. The known way to do it by using the sun's calculable orientation in the sky is improved by using a device based on a WIDIF DIflux theodolite and split photocells positioned on its telescope ocular. Given the WIDIF accurate timing and location provided by the onboard GPS receiver, an astronomical computation can be effected to accurately and quickly determine the sun's azimuth and an auxiliary mark's azimuth. The precise sun's crossing of the split photocell, amplified by the telescope's magnification, allows azimuth accuracies of a few seconds of arc.

  10. Actitudes lingüísticas de los hablantes de Managua, Nicaragua

    Directory of Open Access Journals (Sweden)

    Zobeyda Catalina Zamora Úbeda

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de la ciudad de Managua, hacia al español de Nicaragua y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes estratificada con las variables de edad, sexo y nivel socioeconómico, en la capital del país. Esta investigación acerca de las actitudes lingüísticas hacia el español de Nicaragua y el de los demás países de habla hispana es la primera de su tipo en el país. Los resultados más relevantes muestran que mayoritariamente se nombra español a la lengua que se habla. El español de la capital es el que más les agrada a los entrevistados y estos lo perciben como un habla muy similar a la de la región del Pacífico. Por otro lado, el habla de la región Central se considera diferente y no gusta tanto. En lo relacionado con las variantes hispanoamericanas, consideran que el español peninsular es bastante correcto mientras que el de Costa Rica no lo es. A pesar de este hecho, los datos muestran que hay señales de que los nicaragüenses sienten una creciente autoestima por su propia variante de la lengua española. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from the city of Managua, towards Spanish spoken in Nicaragua and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Norwegian Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents based on the variables of age, sex and socioeconomic status. This research study of language

  11. Convergências lexicais: a área dos olhos no Atlas Lingüístico Galego e no Atlas Lingüístico do Paraná

    Directory of Open Access Journals (Sweden)

    Vanderci de Andrade Aguilera

    2015-01-01

    Full Text Available This article presents some points of convergence between the lexical variants of two geolinguistic corpora: volume V of the Atlas Lingüístico Galego - ALGa (García et alii 2005 and the Atlas Lingüístico do Paraná – ALPR (Aguilera 1994 together with the Atlas Lingüístico do Paraná II - ALPR II (Altino 2005. Within the Human Body semantic field, items referring to the eye area were examined. Geolinguistic and lexicological methods were used in the analysis, since we were looking for information about spatial distribution and lexical documentation of variants common to both corpora. The analysis indicated that certain variants surviving in rural Paraná speech are linked to Galician forms, and that some metonymic and lexical creation processes act similarly in both languages. We also found analogous sociolinguistic features of the lexical item capela in three different language areas: Galician, European Portuguese and Paraná dialect. This convergence is illustrated by (i the diatopic distribution of variants such as capela in the dialect of Paraná and its presence, though sparse, in Galician, (ii the attribution of more than one meaning to the same concept, such as pestana which, according to both atlases, may mean either ‘eyelid’ or ‘eyelash’, and (iii the creation of folk terms through semantic extension or the use of more generic terms such as piel ‘skin’, tapa ‘cover’, papo ‘maw’ (in ALGa and pele ‘skin’, couro ‘hide’ (in ALPR rather than the learned form pálpebra ‘eyelid.’

  12. El ciberlenguaje como variedad lingüística Cyberlanguage like linguistic variety

    Directory of Open Access Journals (Sweden)

    Betancourt Arango Amanda

    2010-01-01

    Full Text Available La presentación del ciberlenguaje como una de las variantes de la lengua incluye una discusión sobre su carácter como forma intermedia entre la oralidad y la escritura y las fuerzas responsables de los cambios lingüísticos. Por una parte, la vertiente popular que ha dado origen a la evolución constante de la lengua y, por otra, la culta que se esfuerza por recuperar la forma etimológica. Aquí se destaca el uso innovador del ciberlenguaje que deja de lado el aspecto normativo de la gramática y saca a flote la creatividad de los usuarios. El corpus para el análisis consta de algunos mensajes de texto y muestras del Chat entre adolescentes y algunas muestras del correo electrónico usual en el ambiente académico universitario. This presentation of cyberlanguage as one of language’s varieties includes a discussion about its character as an intermediate mode between written and spoken language and the powers that are responsible for linguistic change. On the one hand, we have the popular use of language that has given birth to the constant evolution of it. On the other hand, there is the educated part that makes an effort to keep the etymological form. Here we emphasize the innovative use of cyber language that leaves out the grammar facets and raises the creativity of the lingo users. The analysis corpus consists of text messages and pieces of chat dialogues used by teenagers and some e-mails examples that are used at the university environment.

  13. Wu-Ling-San formula prophylaxis against recurrent calcium oxalate nephrolithiasis - a prospective randomized controlled trial.

    Science.gov (United States)

    Lin, Eugene; Ho, Lin; Lin, Mao-Sheng; Huang, Min-Ho; Chen, Wen-Chi

    2013-01-01

    Wu-Ling-San (WLS) formula has been proved to prevent calcium oxalate nephrolithiasis both in vitro and in vivo. This is the first prospective, randomized and placebo-controlled clinical trial of WLS in calcium oxalate nephrolithiasis prevention. All patients who enrolled were asked to drink enough fluid to urinate at least 2 L daily during the study period. A 24-hour urine collection was performed to establish the baseline levels of multiple urinary parameters before taking the medicine. The patients were randomized and divided into two groups. The medication group took 2 gm WLS formula three times daily for 1 month. The control group took 2 gm placebo three times daily for 1 month. A 24-hour urine collection was performed to evaluate multiple urinary and serum parameters from all patients during the study period. A total of 39 patients were enrolled and 28 patients completed the study. Fourteen patients were allocated to WLS group and 14 patients to placebo group. After treatment, the mean urine output level increased to 2796.4 ± 525.7 ml/day (percentage of change, 13.9 %) in the WLS formula group. With placebo therapy, the mean decreased slightly to 2521.4 ± 762.7ml/day (percentage of change, -5.7 %). The percentage of change was significantly different between the two groups (independent t-test, P=0.02). No patient complained of side effects, such as fatigue, dizziness, musculoskeletal symptoms, or gastrointestinal disturbance. WLS formula is a promising adjunct to surgical and medical management of kidney stones. Active therapy with WLS formula has a positive effect on diuresis without leading to electrolyte imbalance.

  14. The Sun in Time: Activity and Environment

    Directory of Open Access Journals (Sweden)

    Güdel Manuel

    2007-12-01

    Full Text Available The Sun's magnetic activity has steadily declined during its main-sequence life. While the solar photospheric luminosity was about 30% lower 4.6 Gyr ago when the Sun arrived on the main sequence compared to present-day levels, its faster rotation generated enhanced magnetic activity; magnetic heating processes in the chromosphere, the transition region, and the corona induced ultraviolet, extreme-ultraviolet, and X-ray emission about 10, 100, and 1000 times, respectively, the present-day levels, as inferred from young solar-analog stars. Also, the production rate of accelerated, high-energy particles was orders of magnitude higher than in present-day solar flares, and a much stronger wind escaped from the Sun, permeating the entire solar system. The consequences of the enhanced radiation and particle fluxes from the young Sun were potentially severe for the evolution of solar-system planets and moons. Interactions of high-energy radiation and the solar wind with upper planetary atmospheres may have led to the escape of important amounts of atmospheric constituents. The present dry atmosphere of Venus and the thin atmosphere of Mars may be a product of early irradiation and heating by solar high-energy radiation. High levels of magnetic activity are also inferred for the pre-main sequence Sun. At those stages, interactions of high-energy radiation and particles with the circumsolar disk in which planets eventually formed were important. Traces left in meteorites by energetic particles and anomalous isotopic abundance ratios in meteoritic inclusions may provide evidence for a highly active pre-main sequence Sun. The present article reviews these various issues related to the magnetic activity of the young Sun and the consequent interactions with its environment. The emphasis is on the phenomenology related to the production of high-energy photons and particles. Apart from the activity on the young Sun, systematic trends applicable to the entire

  15. The sun and heliosphere at solar maximum.

    Science.gov (United States)

    Smith, E J; Marsden, R G; Balogh, A; Gloeckler, G; Geiss, J; McComas, D J; McKibben, R B; MacDowall, R J; Lanzerotti, L J; Krupp, N; Krueger, H; Landgraf, M

    2003-11-14

    Recent Ulysses observations from the Sun's equator to the poles reveal fundamental properties of the three-dimensional heliosphere at the maximum in solar activity. The heliospheric magnetic field originates from a magnetic dipole oriented nearly perpendicular to, instead of nearly parallel to, the Sun's rotation axis. Magnetic fields, solar wind, and energetic charged particles from low-latitude sources reach all latitudes, including the polar caps. The very fast high-latitude wind and polar coronal holes disappear and reappear together. Solar wind speed continues to be inversely correlated with coronal temperature. The cosmic ray flux is reduced symmetrically at all latitudes.

  16. Ra: The Sun for Science and Humanity

    Science.gov (United States)

    1996-01-01

    To guide the development of the Ra Strategic Framework, we defined scientific and applications objectives. For our primary areas of scientific interest, we choose the corona, the solar wind, the Sun's effect on the Earth, and solar theory and model development. For secondary areas of scientific interest, we selected sunspots, the solar constant, the Sun's gravitational field, helioseismology and the galactic cosmic rays. We stress the importance of stereoscopic imaging, observations at high spatial, spectral, and temporal resolutions, as well as of long duration measurements. Further exploration of the Sun's polar regions is also important, as shown already by the Ulysses mission. From an applications perspective, we adopted three broad objectives that would derive complementary inputs for the Strategic Framework. These were to identify and investigate: possible application spin-offs from science missions, possible solar-terrestrial missions dedicated to a particular application, and possible future applications that require technology development. The Sun can be viewed as both a source of resources and of threats. Our principal applications focus was that of threat mitigation, by examining ways to improve solar threat monitoring and early warning systems. We compared these objectives to the mission objectives of past, current, and planned international solar missions. Past missions (1962-1980) seem to have been focused on improvement of scientific knowledge, using multiple instrument spacecraft. A ten year gap followed this period, during which the results from previous missions were analyzed and solar study programmes were prepared in international organizations. Current missions (1990-1996) focus on particular topics such as the corona, solar flares, and coronal mass ejections. In planned missions, Sun/Earth interactions and environmental effects of solar activity are becoming more important. The corona is the centre of interest of almost all planned missions

  17. Haloes around the Moon and the Sun

    Science.gov (United States)

    Gaina, Alex; Gaina, Danielle A.

    2008-10-01

    The authors observations of the Haloes around the Moon and the Sun during few last years are reported. A Historical review of the phenomenon is given since the observations by Benvenuto Cellini and Gaston Tissandier is given. A photograph (from eight available) of the Halo around the Sun observed in Chisinau on 21 May 2007 is included. The Halo from 21 May 2007 occured after a very fast increasing of the air temperature during one day by more than 15 Deg. The authors consider, that the phenomenon is due to scattering of light on Cirri clouds(7 km altitude), present on the sky during that day. They formed due to very fast heating.

  18. SunShot Initiative Fact Sheet

    Energy Technology Data Exchange (ETDEWEB)

    DOE Solar Energy Technologies Office

    2015-04-01

    The U.S. Department of Energy (DOE) SunShot Initiative is a collaborative national effort launched in 2011 that aggressively drives innovation to make solar energy fully cost competitive with traditional energy sources before the end of the decade. The SunShot fact sheet outlines goals and successes of the program as it works with private companies, universities, non-profit organizations, state and local governments, and national laboratories to drive down the cost of solar electricity to $0.06 per kilowatt-hour, without incentives, by the year 2020.

  19. Radio emission of the sun and planets

    CERN Document Server

    Zheleznyakov, V V

    1970-01-01

    International Series of Monographs in Natural Philosophy, Volume 25: Radio Emission of the Sun and Planets presents the origin of the radio emission of the planets. This book examines the outstanding triumphs achieved by radio astronomy of the solar system. Comprised of 10 chapters, this volume begins with an overview of the physical conditions in the upper layers of the Sun, the Moon, and the planets. This text then examines the three characteristics of radio emission, namely, the frequency spectrum, the polarization, and the angular spectrum. Other chapters consider the measurements of the i

  20. La lingüística cognitiva: una aproximación al abordaje del lenguaje como fenómeno cognitivo integrado

    Directory of Open Access Journals (Sweden)

    Javier Aníbal Moreno Mojica

    2016-01-01

    Full Text Available La lingüística cognitiva es un movimiento lingüístico que concibe el lenguaje como una capacidad integrativa dentro de las tareas cognitivas propias del hombre, lo que devela que el lenguaje está basado en procesos de cognición complejos tales como la percepción, conceptualización, categorización, inferencia, entre otros, los que de una u otra forma permiten una aprehensión, funcionamiento, estructuración y adecuación de la realidad y el mundo. No obstante, debido a sus postulaciones en contraposición de paradigmas lingüísticos tradicionales, ha sido señalada más de teoría unificada que de una corriente como tal, llegando a desconocerse no solo sus orígenes, preguntas fundamentales, principios teóricos y tareas propias, sino sus aportes a la ciencia lingüística en lo que atañe a la concepción y comprensión de la facultad del lenguaje humano. A través de este artículo se presenta una aproximación a la lingüística cognitiva en cuanto a su desarrollo histórico, constructos teóricos fundamentales y tendencias particulares en lo propio a la relación lenguaje-cognición-realidad.

  1. Modelos matemáticos e substitución lingüística

    Directory of Open Access Journals (Sweden)

    Johannes Kabatek

    2012-01-01

    Full Text Available This paper presents a critical review of several recent studies that aim to model language contact, language shift and language death mathematically. We will present the models proposed by Abrams & Strogatz 2003, Mira & Paredes 2005, Mira, Seoane & Nieto 2011, Minett & Wang 2007 and Castelló (2010, as well as Castelló et al. (2012. These papers refer to different contact situations, including Galician-Spanish language contact. The different models and corresponding algorithms will be described and critiqued, distinguishing several degrees of sophistication and adequacy. The study identifies a series of shortcomings, particularly in Abrams & Strogatz’ and Mira & Paredes’ papers: data problems, argumentative and logical errors, and also inadequate simplifications. Nevertheless, it will be argued that the more sophisticated models in particular should continue to be developed, and a “heuristic spiral” between model developers and sociolinguists ought to be pursued, in order to achieve better models and greater insight into the mechanisms involved in language change and language shift.

  2. BcSUN1, a B. cinerea SUN-Family Protein, Is Involved in Virulence

    Science.gov (United States)

    Pérez-Hernández, Alicia; González, Mario; González, Celedonio; van Kan, Jan A. L.; Brito, Nélida

    2017-01-01

    BcSUN1 is a glycoprotein secreted by Botrytis cinerea, an important plant pathogen that causes severe losses in agriculture worldwide. In this work, the role of BcSUN1 in different aspects of the B. cinerea biology was studied by phenotypic analysis of Bcsun1 knockout strains. We identified BcSUN1 as the only member of the Group-I SUN family of proteins encoded in the B. cinerea genome, which is expressed both in axenic culture and during infection. BcSUN1 is also weakly attached to the cellular surface and is involved in maintaining the structure of the cell wall and/or the extracellular matrix. Disruption of the Bcsun1 gene produces different cell surface alterations affecting the production of reproductive structures and adhesion to plant surface, therefore reducing B. cinerea virulence. BcSUN1 is the first member of the SUN family reported to be involved in the pathogenesis of a filamentous fungus. PMID:28163701

  3. Sun exposure and sun protection practices of children and their parents.

    LENUS (Irish Health Repository)

    Kiely, A D

    2009-05-01

    The primary aims of this study were: to estimate sun exposure in hours of children in Cork during the summer months; to examine sun protection measures used by children and their parents and to explore parental knowledge of sun exposure and protection. A cross-sectional study, using a semi-structured questionnaire, was conducted in June 2006 in primary schools, pre-schools and creches throughout Cork City and County. Parents of 250 children aged less than 12 years were sampled. Mean sun exposure of Cork children was 40.9 hours per week in the summer months, with 77 (46.1%) children developing sunburn. 59.3% of the studied children were of skin type 1 or 2. 95 (57%) children on weekdays and 137 (82%) children at weekends were exposed to the sun between 11 am and 3 pm. Sunscreen and hats\\/caps were the most common protection measures used. A minority used protective clothing, sunglasses or sought shade. Thirty one (30.5%) children had sunscreen reapplied every 2 hours. Knowledge of sun protection was considerable among Irish parents. However the frequency of sunburn among Irish children suggests we are not providing them with adequate sun protection.

  4. On Wang Yangming’s View of Sage%论王阳明的圣人观

    Institute of Scientific and Technical Information of China (English)

    欧阳辉纯

    2016-01-01

    Buddhism,Taoism and Confucianism have an important influence on the formation of Wang Yangming’s “self sufficiency”based on “conscience”.The main content of his sage view is:the sage is the moral subject and the moral object,the unity of knowing and doing in the moral epistemology;the sage is the moral value carrier keep justice,and destroying human desires on moral behavior;the sage is self sufficient,has the most essential human nature in the moral cultivation.Saint of Wang Yangming’s view of the Confucian view of sage “self transcendence”,completed the Confucian view of sage from the“Temple”to “human”,from “Den”to “folk”the great transformation,to achieve a Confucian sage view of secular,popular and folk.%佛、道和儒家思想对形成王阳明以“良知”为基础的“吾性自足”的圣人观产生了重要影响。他的圣人观的主要内容是:在道德认识论上,圣人是道德主体和道德客体、知与行的统一;在道德行为上,圣人是存天理、灭人欲的道德价值载体;在道德修养上,圣人吾性自足,具备最本质的人性。王阳明的圣人观是对先儒圣人观的“自我超越”,完成了儒家圣人观从“庙堂”到“人间”、从“书斋”到“民间”的伟大转变,实现了儒家圣人观的世俗化、大众化和民间化。

  5. Sobre la naturaleza de la investigación lingüística: Antecedentes y perspectivas

    Directory of Open Access Journals (Sweden)

    Félix Quesada Castillo

    2011-05-01

    Full Text Available El presente artículo tiene por objeto propiciar una reflexión sobre las diferentes propuestas de explicación acerca de la naturaleza del lenguaje.Se hace un somero repaso sobre los antecedentes de la lingüística para concluir en una reflexión en torno a las perspectivas actuales.En vista de que la lengua constituye un sistema subyacente que genera las expresiones del comportamiento verbal, una teoría lingüística adecuada exige un enfoque internalista. Según esta perspectiva, el ser humano es capaz de hablar una lengua por cuanto está dotado de una facultad dellenguaje, o de un órgano de la mente/cerebro, y esta dotación genética explica el aprendizaje de una lengua y la capacidad de usar la lengua, debido a la conexión entre el módulo de la facultad del lenguaje (estado asumido al hablar una lengua cualquiera y los sistemas o módulos de la performance. Este avance alcanzado por el desarrollo de la teoría generativaactual ha conducido a proponer la biolingüística como ciencia del lenguaje, lo que conduce a integrar la lingüística con las demás ciencias del cerebro, debilitándose su vínculo con las ciencias sociales. Palabras claves: Enfoque internalista, facultad de lenguaje, mente/cerebro, biolingüística.

  6. Conexões entre produção textual e consciência lingüística

    Directory of Open Access Journals (Sweden)

    Soroka, Jaqueline Golbspan

    1998-01-01

    Full Text Available Este artigo examina a conexão entre consciência lingüística e produção textual, enfatizando os mecanismos coesivos e as etapas subjacentes ao processo de organização textual. Trata-se de uma investigação interdisciplinar a tipo exploratório, baseada nos pressupostos teóricos da psicologia cognitiva, da psicolingüística e da lingüística textual. Com o objetivo de verificar se o desempenho na produção textual - em termos de uso dos mecanismos coesivos - relaciona-se positivamente com o desenvolvimento da consciência lingüística, e se escritores com déficit na escrita redacional poderiam se beneficiar com uma abordagem terapêutica que estimule suas habilidades para refletir sobre a libguagem, foi desenvolvida nesta pesquisa uma etapa de 30 sessões de tratamento psicopedagógico grupal. Três sujeitos pré-adolescentes, de 11 a 14 anos de idade, integram o grupo (um dos sujeitos encontrava-se repetindo a 5ª série e os demais cursavam a 6ª série do 1º grau. Concluímos que a estimulação das habilidades metalingüísticas podem auxiliar os sujeitos com dificuldades escolares e desenvolver proficiência na produção textual, no que diz respeito ao monitoramento do uso dos mecanismos coesivos

  7. Soong Ching-ling and Women’s Movements during Chinese National Revolution%国民革命时期的宋庆龄与妇女运动

    Institute of Scientific and Technical Information of China (English)

    叶维维

    2016-01-01

    宋庆龄在国民革命时期的妇女运动中扮演着重要的角色,是这一时期妇女运动的参与者、推动者,更是国共两党开展妇女运动的融合者。1925年孙中山逝世后,宋庆龄独立参政,利用自己特殊的地位和卓越的政治能力,为妇女运动的推进作出了贡献。正是因为有宋庆龄这样的杰出女性,才使得近代以来中国的女权运动主要由男性精英指导与推动的局限得以突破。她以女性领袖的身份激励妇女追求男女平等,实现妇女参政议政,将中国的妇女运动与国民革命的潮流融合,打破了原来孤立而有限的争取男女平等的运动。%Soong Ching-ling played an essential role in feminist movement during Chinese National Revolution, in which she was an advocator,promoting women’s suffrage and coordinating movements of women from both communist and democratic parties.After Sun Yat-sen’s death,Soong stood into the politics on her own, taking advantage of her social skills and status to contribute to women’s movement.Only with great women like her,Chinese women’s movement can break through the male-dominated state.Soong Ching-ling acted as a female leader to advocate “gender equality”and women’s suffrage and channeled women’s movements into part of the revolutionary,nationalistic and cosmopolitan trend instead of some isolated movements for women’s right.

  8. 华罗庚-王中烈型不等式的矩阵形式及推广%Some Matrix Versions and Generalizations for Inequalities of Hua-Wang Type

    Institute of Scientific and Technical Information of China (English)

    刘建忠; 甘文珍

    2008-01-01

    This paper is concerned with inequalities of Hun-Wang type.Some generalizations for inequalities of Hua-Wang type are obtained by the method of theory of Matrix.Moreover,some new Hua-Wang type inequalities are established.

  9. Hacia un modelo explicativo del desarrollo lingüístico del niño sordo con implante coclear

    OpenAIRE

    2015-01-01

    Tras más de dos décadas de experiencia en el uso del implante coclear pediátrico, parece una obviedad afirmar que estos dispositivos son beneficiosos. No obstante, con el paso del tiempo hay algo que nos sigue intrigando: ¿es un niño sordo implantado igual a un oyente?. Si no lo es, ¿en qué se diferencia exactamente y cómo afecta eso a su desarrollo lingüístico y social?. Responder a esta pregunta no es del todo sencillo por varios motivos y, entre otros, por estos dos: uno, las diferencias s...

  10. Propiedades lingüísticas de los trastornos específicos del desarrollo del lenguaje

    OpenAIRE

    Liliana Hincapié; Mario Giraldo; Rodrigo de Castro; Francisco Lopera; David Pineda; Egidio Lopera

    2007-01-01

    Este estudio revisa los principales enfoques de las alteraciones que pueden explicar las alteraciones del lenguaje en los niños con Trastornos Específicos del Desarrollo del Lenguaje (TEDL). Se estima que en por lo menos en un 7.4% de los niños tienen dificultades en su desarrollo del lenguaje y la mayoría de ellos no tienen otro retraso en el desarrollo. Aunque las dificultades lingüísticas aparentemente podrían ser resultas en niños con TEDL, hay un grupo de niños en los que el ...

  11. N-gramas sintácticos y su uso en la lingüistica computacional

    OpenAIRE

    Grigori Sidorov

    2013-01-01

    En este artículo, estamos introduciendo un nuevo concepto que se utilizará en la lingüística computacional, se llama n-gramas sintácticos: son n-gramas que se construyen siguiendo un árbol sintáctico. Es equivalente a introducir la información sintáctica en los métodos de aprendizaje automático, que siempre era un problema muy difícil. Discutimos los elementos que pueden formar estos n-gramas: palabras, clases gramaticales (POS tags), nombres de relaciones sintácticas, caracteres. Consideramo...

  12. (In) visibilización del kichwa: políticas lingüísticas en el Ecuador

    OpenAIRE

    Kowii Maldonado, Wankar Ariruma

    2013-01-01

    Esta tesis analiza la visión homogenizante y excluyente que caracterizó a la invasión española emprendida al territorio que luego se denominó “América”, y que fue concebida como un proyecto empresarial cuyo propósito era buscar una ruta más corta para llegar a las indias. Este trabajo examina las estrategias de colonización geográfica, espiritual y lingüística utilizadas por el sistema colonial y republicano en su propósito de legitimar la invasión, explotar sus recursos, su fu...

  13. Sobre el atractivo social atribuido a las variantes regionales del español: Mitos lingüísticos

    OpenAIRE

    Calvo-Shadid, Annette; Castillo-Rivas, Jacqueline

    2016-01-01

    En esta investigación, las autoras tratan como mitos lingüísticos las opiniones de los hablantes sobre las características atribuidas a las diversas variedades regionales del español. Se observan los resultados sobre Costa Rica y se integran los de los demás países hispanohablantes integrados al proyecto LIAS de la Universidad de Bergen. Se llegan a establecer los siguientes mitos:Mito 1: El español de España es el mejor por ser la cuna del idioma y viene de la “madre patria”.Mito 2: Se da un...

  14. Algunhas notas sobre vocabularios e outros traballos lingüísticos da época pregaleguista

    OpenAIRE

    Suárez Vázquez, Damián

    2012-01-01

    A contribución que preparamos para este volume recolle, en boa medida, a nosa intervención no Simposio “Lingua galega e comunicación nos inicios da Idade Contemporánea”, celebrado en novembro de 2009. Ocupámonos daquela, e facémolo agora por escrito, dos textos de corte lingüístico que chegaron ata nós producidos sobre o galego ao longo do período pregaleguista, entre os cales predominan os traballos de tipo lexicográfico, como veremos máis adiante. Non pretendemos levar a cabo un estudo comp...

  15. Aspectos lingüísticos de índole sistemática en las Instituciones de Justiniano

    OpenAIRE

    Aurelia Vargas Valencia

    2009-01-01

    Este artículo pone en evidencia aspectos que tienden a la sistematicidad en las Instituciones de Justiniano, primera parte del Corpus Iuris Civilis, una obra que ha tenido gran trascendencia en la historia jurídica de Occidente. Se muestra la coherencia en planos del texto como los que se refieren a la temática y al estilo, pero sobre todo a elementos lingüísticos -explicaciones etimológicas principalmente- que, por su frecuencia, dan al texto un carácter acorde con sus pro-pósitos. Éstos fue...

  16. Racionalismo, empirismo y funcionalismo en la explicación de universales lingüísticos

    OpenAIRE

    2015-01-01

    El presente artículo consta de dos partes: en la primera se caracteriza el concepto de universal lingüístico desde las perspectivas racionalista (generativismo chomskyano) y empirista (tipologismo greenbergiano) y se reseñan las distinciones: a) universales formales vs. sustantivos, b) universales implicativos vs. no implicativos, y e) universales absolutos vs. tendencias universales. En la segunda parte se señalan las críticas al enfoque racionalista y se propone una interrelación entre comp...

  17. Propiedades lingüísticas de los trastornos específicos del desarrollo del lenguaje

    OpenAIRE

    Liliana Hincapié; Mario Giraldo; Rodrigo Castro; Francisco Lopera; David Pineda; Egidio Lopera

    2007-01-01

    Este estudio revisa los principales enfoques de las alteraciones que pueden explicar las alteraciones del lenguaje en los niños con Trastornos Específicos del Desarrollo del Lenguaje (TEDL). Se estima que en por lo menos en un 7.4% de los niños tienen dificultades en su desarrollo del lenguaje y la mayoría de ellos no tienen otro retraso en el desarrollo. Aunque las dificultades lingüísticas aparentemente podrían ser resultas en niños con TEDL, hay un grupo de niños en los que el ...

  18. Rational SU(N) Gaudin Model

    Institute of Scientific and Technical Information of China (English)

    曹俊鹏; 侯伯宇; 岳瑞宏

    2001-01-01

    We propose the eigenstates and eigenvalues of Hamiltonians of the rational SU(N) Gaudin model based onthe quasi-classical limit of the SU ( N) chain under the periodic boundary condition. Using the quantum inversescattering method, we also obtain the eigenvalues of the generation function of the rational SU ( N) Gaudin model.

  19. Asymmetric dark matter and the Sun

    DEFF Research Database (Denmark)

    Frandsen, Mads Toudal; Sarkar, Subir

    2010-01-01

    Cold dark matter particles with an intrinsic matter-antimatter asymmetry do not annihilate after gravitational capture by the Sun and can affect its interior structure. The rate of capture is exponentially enhanced when such particles have self-interactions of the right order to explain structure...

  20. SunPy - Python for Solar Physics

    CERN Document Server

    Community, The SunPy; Christe, Steven; Pérez-Suárez, David; Ireland, Jack; Shih, Albert Y; Inglis, Andrew R; Liedtke, Simon; Hewett, Russell J; Mayer, Florian; Hughitt, Keith; Freij, Nabil; Meszaros, Tomas; Bennett, Samuel M; Malocha, Michael; Evans, John; Agrawal, Ankit; Leonard, Andrew J; Robitaille, Thomas P; Mampaey, Benjamin; Campos-Rozo, Jose Iván; Kirk, Michael S

    2015-01-01

    This paper presents SunPy (version 0.5), a community-developed Python package for solar physics. Python, a free, cross-platform, general-purpose, high-level programming language, has seen widespread adoption among the scientific community, resulting in the availability of a large number of software packages, from numerical computation (NumPy, SciPy) and machine learning (scikit-learn) to visualisation and plotting (matplotlib). SunPy is a data-analysis environment specialising in providing the software necessary to analyse solar and heliospheric data in Python. SunPy is open-source software (BSD licence) and has an open and transparent development workflow that anyone can contribute to. SunPy provides access to solar data through integration with the Virtual Solar Observatory (VSO), the Heliophysics Event Knowledgebase (HEK), and the HELiophysics Integrated Observatory (HELIO) webservices. It currently supports image data from major solar missions (e.g., SDO, SOHO, STEREO, and IRIS), time-series data from mis...

  1. Essential Outdoor Sun Safety Tips for Winter

    Science.gov (United States)

    ... ve Got Skin in the Game Anti-Aging Vitamin D Related: What Is Skin Cancer? | True Stories | Ask the Experts Blog Events ... Weekend Warriors expand/collapse Golf: You've Got Skin in the Game expand/collapse Vitamin D Essential Outdoor Sun Safety Tips for Winter ...

  2. Sino-Sun Architects & Engineers

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    Sino-Sun is an A-Class state architectural design company organized by a group of experts who have returned to China after studying abroad. In the 10 yearssince its establishment, it has grown into an outstanding andwell-known design team, which has influence in the national archi-tectural design field.

  3. Ulysses Passes South Pole of Sun

    Institute of Scientific and Technical Information of China (English)

    程林

    1995-01-01

    On the 14th of September,1994, the fastest scientific instrument in space passed the south pole of the Sun,a place where no human-made object has been before. A spaceprobe called Ulysses made the polar pass at about midday as it continued to collect data on the solar wind,a stream of high-energy sub-atomic

  4. Isotopes Tell Sun's Origin and Operation

    Science.gov (United States)

    Manuel, O.; Kamat, Sumeet A.; Mozina, Michael

    2006-03-01

    Modern versions of Aston's mass spectrometer enable measurements of two quantities - isotope abundances and masses - that tell the Sun's origin and operation. Isotope analyses of meteorites, the Earth, Moon, Mars, Jupiter, the solar wind, and solar flares over the past 45 years indicate that fresh, poorly-mixed, supernova debris formed the solar system. The iron-rich Sun formed on the collapsed supernova core and now itself acts as a magnetic plasma diffuser, as did the precursor star, separating ions by mass. This process covers the solar surface with lightweight elements and with the lighter isotopes of each element. Running difference imaging provides supporting evidence of a rigid, iron-rich structure below the Sun's fluid outer layer of lightweight elements. Mass measurements of all 2,850 known nuclides expose repulsive interactions between neutrons that trigger neutron-emission at the solar core, followed by neutron-decay and a series of reactions that collectively generate solar luminosity, solar neutrinos, the carrier gas for solar mass separation, and an outpouring of solar-wind hydrogen from the solar surface. Neutron-emission and neutron-decay generate ~ 65% of solar luminosity; H-fusion ~ 35%, and ~ 1% of the neutron-decay product survives to depart as solar-wind hydrogen. The energy source for the Sun and other ordinary stars seems to be neutron-emission and neutron-decay, with partial fusion of the decay product, rather than simple fusion of hydrogen into helium or heavier elements.

  5. Sun Baiqiu Fights for the Human Cause

    Institute of Scientific and Technical Information of China (English)

    1994-01-01

    SUN Baiqiu liked to read well known literature from all over the world when she was a little girl. She sympathized with the good-hearted characters and hated the greedy and the evil. She imagined that she would become like a fairy godmother, holding a magic wand and helping the poor but kind people in distress. In 1963 she graduated from Haerbin

  6. The Sun in Time: Activity and Environment

    CERN Document Server

    Güdel, M

    2007-01-01

    (abridged) The Sun's magnetic activity has steadily declined during its main-sequence life. While the solar photospheric luminosity was about 30% lower 4.6 Gyr ago when the Sun arrived on the main sequence compared to present-day levels, its faster rotation generated enhanced magnetic activity; magnetic heating processes in the chromosphere, the transition region, and the corona induced ultraviolet, extreme-ultraviolet, and X-ray emission about 10, 100, and 1000 times, respectively, the present-day levels, as inferred from young solar-analog stars. Also, the production rate of accelerated, high-energy particles was orders of magnitude higher than in present-day solar flares, and a much stronger wind escaped from the Sun, permeating the entire solar system. The consequences of the enhanced radiation and particle fluxes from the young Sun were potentially severe for the evolution of solar-system planets and moons. Interactions of high-energy radiation and the solar wind with upper planetary atmospheres may have...

  7. Repensando la educación inicial del profesorado para la diversidad lingüística y cultural en el aula

    Directory of Open Access Journals (Sweden)

    Elizabeth Jennifer Coelho

    2011-12-01

    Full Text Available Los sistemas educativos europeos están afrontando en las últimas décadas numerosos retos relacionados con el tratamiento de la diversidad cultural y lingüística. La necesidad de afrontar dicha diversidad requiere de planteamientos globales dirigidos al conjunto de la población en aras de construir una sociedad cohesionada lingüística, social y culturalmente. En este artículo exponemos algunos de los principales problemas que afectan a la formación inicial del profesorado por lo que se refiere a la gestión y el tratamiento de la diversidad cultural y lingüística así como diferentes proyectos y enfoques que justamente tienen por objetivo establecer su formación competencial.  

  8. Saussure e o discurso: o Curso de Lingüística Geral lido pela análise do discurso

    Directory of Open Access Journals (Sweden)

    Carlos Piovezani

    2008-01-01

    Full Text Available

    Qual o lugar da Lingüística e, mais particularmente, de Saussure na constituição e nos desenvolvimentos da Análise do Discurso? Com vistas a refletir sobre a leitura que o grupo em torno de Michel Pêcheux fez do Curso de Lingüística Geral, não buscaremos responder sumariamente a essa questão, antes, tentaremos expor algumas de suas contingências e examinar certas respostas que a ela poderiam ser dadas, considerando as condições de sua emergência e as razões de sua formulação. No intuito de compreender certos aspectos da recepção de Saussure pela AD, recorremos a princípios discursivos e a contribuições da Historiografia lingüística francesa.

  9. Enhanced von Weizsäcker Wang-Govind-Carter kinetic energy density functional for semiconductors

    Science.gov (United States)

    Shin, Ilgyou; Carter, Emily A.

    2014-05-01

    We propose a new form of orbital-free (OF) kinetic energy density functional (KEDF) for semiconductors that is based on the Wang-Govind-Carter (WGC99) nonlocal KEDF. We enhance within the latter the semi-local von Weizsäcker KEDF term, which is exact for a single orbital. The enhancement factor we introduce is related to the extent to which the electron density is localized. The accuracy of the new KEDF is benchmarked against Kohn-Sham density functional theory (KSDFT) by comparing predicted energy differences between phases, equilibrium volumes, and bulk moduli for various semiconductors, along with metal-insulator phase transition pressures. We also compare point defect and (100) surface energies in silicon for a broad test of its applicability. This new KEDF accurately reproduces the exact non-interacting kinetic energy of KSDFT with only one additional adjustable parameter beyond the three parameters in the WGC99 KEDF; it exhibits good transferability between semiconducting to metallic silicon phases and between various III-V semiconductors without parameter adjustment. Overall, this KEDF is more accurate than previously proposed OF KEDFs (e.g., the Huang-Carter (HC) KEDF) for semiconductors, while the computational efficiency remains at the level of the WGC99 KEDF (several hundred times faster than the HC KEDF). This accurate, fast, and transferable new KEDF holds considerable promise for large-scale OFDFT simulations of metallic through semiconducting materials.

  10. Enhanced von Weizsäcker Wang-Govind-Carter kinetic energy density functional for semiconductors

    Energy Technology Data Exchange (ETDEWEB)

    Shin, Ilgyou [Department of Chemistry, Princeton University, Princeton, New Jersey 08544-1009 (United States); Carter, Emily A., E-mail: eac@princeton.edu [Department of Mechanical and Aerospace Engineering, Program in Applied and Computational Mathematics, and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544-5263 (United States)

    2014-05-14

    We propose a new form of orbital-free (OF) kinetic energy density functional (KEDF) for semiconductors that is based on the Wang-Govind-Carter (WGC99) nonlocal KEDF. We enhance within the latter the semi-local von Weizsäcker KEDF term, which is exact for a single orbital. The enhancement factor we introduce is related to the extent to which the electron density is localized. The accuracy of the new KEDF is benchmarked against Kohn-Sham density functional theory (KSDFT) by comparing predicted energy differences between phases, equilibrium volumes, and bulk moduli for various semiconductors, along with metal-insulator phase transition pressures. We also compare point defect and (100) surface energies in silicon for a broad test of its applicability. This new KEDF accurately reproduces the exact non-interacting kinetic energy of KSDFT with only one additional adjustable parameter beyond the three parameters in the WGC99 KEDF; it exhibits good transferability between semiconducting to metallic silicon phases and between various III-V semiconductors without parameter adjustment. Overall, this KEDF is more accurate than previously proposed OF KEDFs (e.g., the Huang-Carter (HC) KEDF) for semiconductors, while the computational efficiency remains at the level of the WGC99 KEDF (several hundred times faster than the HC KEDF). This accurate, fast, and transferable new KEDF holds considerable promise for large-scale OFDFT simulations of metallic through semiconducting materials.

  11. On the convergence improvement in the metadynamics simulations: a Wang-Landau recursion approach.

    Science.gov (United States)

    Min, Donghong; Liu, Yusong; Carbone, Irina; Yang, Wei

    2007-05-21

    As a popular tool in exploring free energy landscapes, the metadynamics method has been widely applied to elucidate various chemical or biochemical processes. As deeply discussed by Laio et al. [J. Phys. Chem. B 109, 6714 (2005)], the size of the updating Gaussian function is pivotal to the free energy convergence toward the target free energy surface. For instance, a greater Gaussian height can facilitate the quick visit of a conformation region of interest; however, it may lead to a larger error of the calculated free energy surface. In contrast, a lower Gaussian height can guarantee a better resolution of the calculated free energy surface; however, it will take longer time for such a simulation to navigate through the defined conformational region. In order to reconcile such confliction, the authors present a method by implementing the Wang-Landau recursion scheme in the metadynamics simulations to adaptively update the height of the unit Gaussian function. As demonstrated in their model studies on both a toy system, and a realistic molecular system treated with the hybrid quantum mechanical and molecular mechanical (QMMM) potential, the present approach can quickly result in more decently converged free energy surfaces, compared with the classical metadynamics simulations employing the fixed Gaussian heights.

  12. Wang Changling’ s Farewell Poems%试论王昌龄的送别诗

    Institute of Scientific and Technical Information of China (English)

    赵文彬

    2015-01-01

    Farewell is a long-standing motif for creation in Chinese literature .Chinese farewell poems enjoy a long history and that of the Tang Dynasty were colorful with great achievements .Especially , the farewell poems of Wang Changling (698-756 ) owns aesthetic value beyond time and place due to expression of various images , large increase in emotion and obvious reinforcement of artistic appeal .%送别,是中国文学中经久不衰的创作母题。我国送别诗历史源远流长,唐代的送别诗异彩纷呈,成绩卓著,尤其是王昌龄的送别诗通过不同意象的展示,使其情感含量大大增加,艺术感染力明显增强,具有超时空的审美价值。

  13. Phase transitions of a single polymer chain: A Wang-Landau simulation study.

    Science.gov (United States)

    Taylor, Mark P; Paul, Wolfgang; Binder, Kurt

    2009-09-21

    A single flexible homopolymer chain can assume a variety of conformations which can be broadly classified as expanded coil, collapsed globule, and compact crystallite. Here we study transitions between these conformational states for an interaction-site polymer chain comprised of N=128 square-well-sphere monomers with hard-sphere diameter sigma and square-well diameter lambdasigma. Wang-Landau sampling with bond-rebridging Monte Carlo moves is used to compute the density of states for this chain and both canonical and microcanonical analyses are used to identify and characterize phase transitions in this finite size system. The temperature-interaction range (i.e., T-lambda) phase diagram is constructed for lambda1.06 these two states are separated by an intervening collapsed globule phase and thus, with decreasing temperature a chain undergoes a continuous coil-globule (collapse) transition followed by a discontinuous globule-crystal (freezing) transition. For well diameters lambdamodel, that a collapsed globule state is unstable with respect to a solid phase for flexible polymers with sufficiently short-range monomer-monomer interactions.

  14. Application of the Wang-Landau algorithm to the dimerization of glycophorin A

    Science.gov (United States)

    Gervais, Claire; Wüst, Thomas; Landau, D. P.; Xu, Ying

    2009-06-01

    A two-step Monte Carlo procedure is developed to investigate the dimerization process of the homodimer glycophorin A. In the first step, the energy density of states of the system is estimated by the Wang-Landau algorithm. In the second step, a production run is performed during which various energetical and structural observables are sampled to provide insight into the thermodynamics of the system. All seven residues LIxxGVxxGVxxT constituting the contact interface play a dominating role in the dimerization, however at different stages of the process. The leucine motif and to some extent the GxxxG motif are involved at the very beginning of the dimerization when the two helices come into contact, ensuring an interface already similar to the native one. At a lower temperature, the threonine motif stabilizes by hydrogen bonding the dimer, which finally converges toward its native state at around 300 K. The power and flexibility of the procedure employed here makes it an interesting alternative to other Monte Carlo methods for the study of similar protein systems.

  15. Generic transition hierarchies of lattice HP protein adsorption: A Wang-Landau study

    Science.gov (United States)

    Li, Ying Wai; Landau, D. P.; Wüst, T.

    2012-02-01

    We have applied Wang-Landau sampling with appropriate trial movesootnotetextT. W"ust and D. P. Landau, Phy. Rev. Lett. 102, 178101 (2009). to investigate the thermodynamics and structural properties of the HP lattice protein modelootnotetextK. A. Dill, Biochemistry 24, 1501 (1985). interacting with an attractive substrate. The conformational ``phase transitions'' of several benchmark HP sequences have been identified by a comprehensive canonical analysis of the specific heat and structural observables, e. g. radius of gyration and thermal derivatives of number of surface contacts. Three major ``transitions'': adsorption, hydrophobic core formation, and ``flattening'' of adsorbed structures, are observed. Depending on the surface attractive strength relative to the intra-protein attraction among the H monomers, these processes take place in a different order upon cooling. We identify a small number of generic categories that are sufficient to classify the folding hierarchies for different HP chains consisting of assorted sequences and chain lengths, regardless of the monomer type that the surface attracts. We thus believe that this classification scheme is generally applicable to lattice protein adsorption problems.

  16. Wang-Landau sampling of the interplay between surface adsorption and folding of HP lattice proteins

    Energy Technology Data Exchange (ETDEWEB)

    Li, Ying Wai [ORNL; Wuest, Thomas [Swiss Federal Research Institute, Switzerland; Landau, David P [University of Georgia, Athens, GA

    2014-01-01

    Generic features associated with the adsorption of proteins on solid surfaces are reviewed within the framework of the hydrophobic-polar (HP) lattice protein model. The thermodynamic behavior and structural properties of various HP protein sequences interacting with attractive surfaces have been studied using extensive Wang-Landau sampling with different types of surfaces, each of which attracts either: all monomers, only hydrophobic (H) monomers, or only polar (P) monomers, respectively. Consequently, different types of folding behavior occur for varied surface strengths. Analysis of the combined patterns of various structural observables, e.g., the derivatives of the numbers of interaction contacts, together with the specific heat, leads to the identification of fundamental categories of folding and transition hierarchies. We also inferred a connection between the transition categories and the relative surface strengths, i.e., the ratios of the surface attractive strengths to the intra-chain attraction among H monomers. We thus believe that the folding hierarchies and identification scheme are generic for different HP sequences interacting with attractive surfaces, regardless of the chain length, sequence, or surface attraction.

  17. Thermodynamics and structural properties of a confined HP protein determined by Wang-Landau simulation

    Science.gov (United States)

    Pattanasiri, Busara; Li, Ying Wai; Landau, David P.; Wüst, Thomas; Triampo, Wannapong

    2013-08-01

    Understanding protein folding confined by surfaces is important for both biological sciences and the development of nanomaterials. In this work, we study the properties of a confined HP model protein by three different types of surfaces, namely, surfaces that attract: (a) all monomers; (b) only P monomers; and (c) only H monomers. The thermodynamic and structural quantities, such as the specific heat, number of surface contacts, and number of hydrophobic pairs, are obtained by using Wang-Landau sampling. The conformational "transitions", specifically, the debridging process and hydrophobic core formation, can be identified based on an analysis of these quantities. We found that these transitions take place at different temperatures, and the ground state configurations show variations in structural properties when different surface type is used. These scenarios are confirmed by snapshots of typical states of the systems. From our study, we conclude that the thermodynamics of these transitions and the structural changes depend on the combined actions of both the composition of the H monomers and the P monomers in the HP chain and the surface types.

  18. La vitalidad lingüística de la lengua ayuk o mixe en tres comunidades : Tamazulapam del Espíritu Santo, San Lucas Camotlán y San Juan Guichicovi /

    OpenAIRE

    Trujillo Tamez, Alma Isela

    2012-01-01

     tesis que para obtener el grado de Doctora en Lingüística presenta Alma Isela Trujillo Tamez ; asesor de tesis: Dr. Roland Terborg Schmidtxvi, 315 páginas : diagramas, mapasDoctorado en Lingüística UNAM, Facultad de Filosofía y Letras, 2012

  19. The ScaLIng Macroweather Model (SLIMM) and monthly and inter annual regional forecasting.

    Science.gov (United States)

    Lovejoy, S.; Del Rio Amador, L.; Sloman, L.

    2015-12-01

    By exploiting the sensitive dependence on initial conditions, GCM's can generate a statistical ensemble of future states in which the high frequency "weather" is treated as a driving noise. Following Hasselman, 1976, this has lead to stochastic models that directly generate the noise, and model the low frequencies using systems of integer ordered linear ordinary differential equations, the most well known are the linear inverse models (LIM). These have been presented as a benchmark for decadal surface temperature forecast. Using the LIM, hindcast skills comparable to and sometimes even better than the skill of (coupled) Global Circulation Models (GCM's) from phase 5 of the Coupled Model Intercomparison Project (CMIP5). Nevertheless, the short range exponential temporal decorrelations implicit in the LIM models are unrealistic (the true decorrelations are closer to long range power laws), and - as a consequence - the useful limit to the forecast horizon is roughly one year: it enormously underestimates the memory of the system. In presentation, we make a scaling analogue of the LIM: ScaLIng Macroweather Model (SLIMM) that exploits the power law (scaling) behavior in time of the temperature field and consequently, make use of the long history dependence of the data to improve the skill. The results predicted analytically by the model have been tested by performing actual hindcasts in different 5º x 5º regions on the planet using the Twentieth Century Reanalysis as a reference datasets. As a first step, we removed the anthropogenic component of each time series based on its sensitivity to equivalent CO2 concentration for the last 130 years, the residues are our estimates of the natural variability that SLIMM predicts. This residues were treated as fractional Gaussian noise processes with scaling exponent H between -0.5 and 0. The value of H for each grid-point can be obtained directly from the data. We report maps of theoretical skill predicted by the model and we

  20. Lingüística de interações moleculares

    Directory of Open Access Journals (Sweden)

    Romeu Cardoso Guimarães

    1991-12-01

    Full Text Available As moléculas biológicas mais interessantes são longos polímeros. Em analogia com a linguagem humana alfabética, estes podem ser chamados de textos, e analisados, quanto à estrutura primária, como sequência de letras (monômeros; como nucleotídeos, aminoácidos, etc. ou de palavras (códigos de oligômeros, de até 5-6 letras. Considera-se que o estudo das palavras, em abordagem de tipo lingüístico, possa contribuir para o entendimento das interações (comunicações moleculares. As linguagens e dialetos, moleculares e humanos, são contrastados. A linguagem molecular se distingue peculiarmente da humana, por exemplo, por utilizar forma tridimensional, dinâmica temporal, ausência de espaçamento e pontuação, e sobreposição de significados. Apresenta-se um método matemático para descoberta, de palavras em textos. A palavra AAA (trinca de adeninas foi estudada na evolução do RNA ribossômico 5S. Observou-se que esta palavra é mais freqüente em organismos menos complexos e menos freqüente nos mais complexos, das linhagens de fungos, plantas e vertebrados. Nas duas últimas, reduziu-se também o grau de variabilidade gênica. Pelo contrário, grau moderado de freqüência da palavra persistiu em toda a linhagem dos invertebrados, com manutenção paralela de alto nível de variabilidade gênica. Nas mitocôndrias, plastídeos e micoplasmas, a freqüência da palavra AAA foi aumentada, de acordo com sua necessidade de interações com maior amplitude de variação. Esses comportamentos indicam que a palavra monótona AAA permite ambigüidade de interações. Com a evolução da complexidade orgânica e da maior especificidade molecular, as palavras ambíguas foram progressivamente evitadas.

  1. Actitudes lingüísticas en Ecuador. Una tradición normativa que subsiste

    Directory of Open Access Journals (Sweden)

    Esthela Flores Mejía

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de hablantes nativos de español de Quito, hacia al español del Ecuador y hacia el español de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigación (RCN. La recolección de los datos se realizó en la capital del país, entrevistando una muestra de 395 informantes previamente estratificada con las variables de edad, sexo y nivel socioeconómico. El estudio presentado es el primero de esta naturaleza que se realiza en Ecuador; sus resultados muestran, de forma general, la forma de hablar de la provincia de Loja es la que cuenta con mayor prestigio, en contraste con el bajo aprecio por el habla de Guayaquil y Cuenca. Los habitantes de la Capital reconocen como similar la forma de hablar de las provincias aledañas a la suya y diferentes sobre todo a las provincias de la Costa. En líneas generales se puede establecer que, aunque hay algunas variantes del español que les agradan, como las que se hablan en España y en Colombia, el afecto y el prestigio que los ecuatorianos asignan a su propia forma de hablar es muy fuerte. Abstract This article analyzes the linguistic attitudes of native Spanish speakers from Quito, towards Spanish spoken in Ecuador and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 395 respondents, based on the variables of age, sex and socioeconomic status. This research study is the first of its kind in Ecuador. Its results show that the Spanish spoken in the Loja province has high prestige, in contrast to the Spanish spoken in Guayaquil and Cuenca. Residents of Quito, the

  2. School Sun-Protection Policies--Does Being SunSmart Make a Difference?

    Science.gov (United States)

    Turner, Denise; Harrison, Simone L.; Buettner, Petra; Nowak, Madeleine

    2014-01-01

    Evaluate the comprehensiveness of primary school sun-protection policies in tropical North Queensland, Australia. Pre-determined criteria were used to assess publicly available sun-protection policies from primary schools in Townsville (latitude 19.3°S; n = 43), Cairns (16.9°S; n = 46) and the Atherton Tablelands (17.3°S; n = 23) during 2009-2012.…

  3. Jacques Lacan: apropriação e subversão da lingüística Jacques Lacan: linguistic appropriation and subversion

    Directory of Open Access Journals (Sweden)

    Nadiá Paulo Ferreira

    2002-06-01

    Full Text Available O artigo parte das fontes lingüísticas da teoria de Jacques de Lacan, dando destaque aos conceitos de estrutura, sujeito, signo (Ferdinand de Saussure, metáfora e metonímia (Roman Jakobson, visando demonstrar que as transformações operadas nesses conceitos por Lacan separam de forma irreconciliável a psicanálise da lingüística.The article is based on Lacan's linguistics theory, highlighting the concepts of structure, subject, sign (Ferdinand de Saussure, metaphor and metonymy (Roman Jakobson, aiming to show that Lacan's analysis of these concepts definitely separates psychoanalysts from linguistics.

  4. Opciones educativas culturalmente sensibles a la diversidad y la implementación de los derechos lingüísticos

    Directory of Open Access Journals (Sweden)

    Luis Ernesto Behares

    2014-06-01

    Full Text Available http://dx.doi.org/10.5902/1984644413915 Este trabajo analiza algunas cuestiones teóricas vinculadas a la instrumentalización de los derechos lingüísticos en contextos educativos. En particular, discute las relaciones entre las pedagogías culturalmente sensibles a la diversidad y la instrumentación escolar de derechos lingüísticos de niños y comunidades. Se estudian las tendencias de instrumentación política ligadas a los conceptos de tolerancia, promoción y herencia.

  5. Perspectiva lingüística y cognitiva del estilo de Carlos Ruiz Zafón en La sombra del viento

    OpenAIRE

    Calle Rosingana, Gonzalo

    2012-01-01

    La finalidad fundamental de esta tesis doctoral es exponer algunas de las claves estilísticas y mecanismos lingüísticos que Carlos Ruiz Zafón utiliza en la novela La sombra del viento. Una finalidad que implica identificar aquellos usos lingüísticos y cognitivos que muestren un grado significativo de relevancia estilística. Con la aplicación de los parámetros cognitivistas en los análisis, se abordan cuestiones relativas al ajuste focal, el tratamiento del lenguaje metafórico, la asociació...

  6. España e Hispanoamérica: crónica de un conflicto lingüístico

    OpenAIRE

    Silvia Lafuente

    2014-01-01

    Desde su nacimiento la lengua española, en sus albores lengua castellana, ha presentado rasgos específicos que la acompañarán a través del tiempo: imposición como lengua sobre la pluralidad lingüística peninsular, dilatada expansión, su disimilación y, en consecuencia, una acentuada vocación de uniformidad, que se convertirá en factor desencadenante de futuros conflictos con los países hispanoamericanos. Las instituciones lingüísticas españolas y sus representantes no han dejado de perseguir ...

  7. Perspectiva lingüística y cognitiva del estilo de Carlos Ruiz Zafón en La sombra del viento

    OpenAIRE

    Calle Rosingana, Gonzalo

    2012-01-01

    La finalidad fundamental de esta tesis doctoral es exponer algunas de las claves estilísticas y mecanismos lingüísticos que Carlos Ruiz Zafón utiliza en la novela La sombra del viento. Una finalidad que implica identificar aquellos usos lingüísticos y cognitivos que muestren un grado significativo de relevancia estilística. Con la aplicación de los parámetros cognitivistas en los análisis, se abordan cuestiones relativas al ajuste focal, el tratamiento del lenguaje metafórico, la asociació...

  8. El género judicial. Materiales para su uso lingüístico / The judicial genre. Materials for its Linguistic study

    OpenAIRE

    Susana Ridao Rodrigo

    2010-01-01

    Resumen: El objetivo de este libro es contribuir al estudio del género judicial mediante la utilización de corpus orales. En el ámbito anglosajón, la lingüística forense ha sido una línea de trabajo muy cultivada por diversos investigadores, como lingüistas, sociólogos, psicólogos o traductores; pues nos encontramos ante un campo de análisis interdisciplinar. Estamos convencidos de que en español se han realizado pocos estudios sobre juicios orales debido a las dificultades que conlleva conse...

  9. Aportaciones de la Etología Humana a los estudios lingüísticos: el caso de la Fraseología

    OpenAIRE

    2015-01-01

    En este texto se reflexiona sobre los vínculos existentes entre la Etología Humana, a partir de algunos de los supuestos teóricos desarrollados por Eibl-Eibesfeldt, y la Lingüística. Se busca establecer una relación entre estos supuestos y una parcela de los estudios lingüísticos, la Fraseología (especialmente, las fórmulas rutinarias). A fin de cumplir este objetivo, se describen, someramente, los principios básicos de la Etología Humana; se considera, asimismo, la atención que ha consagrado...

  10. Observing the Sun with NuSTAR

    Science.gov (United States)

    Kohler, Susanna

    2016-07-01

    The Nuclear Spectroscopic Telescope Array (NuSTAR) is a space telescope primarily designed to detect high-energy X-rays from faint, distant astrophysical sources. Recently, however, its occasionally been pointing much closer to home, with the goal of solving a few longstanding mysteries about the Sun.Intensity maps from an observation of a quiet-Sun region near the north solar pole and an active region just below the solar limb. The quiet-Sun data will be searched for small flares that could be heating the solar corona, and the high-altitude emission above the limb may provide clues about particle acceleration. [Adapted from Grefenstette et al. 2016]An Unexpected TargetThough we have a small fleet of space telescopes designed to observe the Sun, theres an important gap: until recently, there was no focusing telescope making solar observations in the hard X-ray band (above ~3 keV). Conveniently, there is a tool capable of doing this: NuSTAR.Though NuSTARs primary mission is to observe faint astrophysical X-ray sources, a team of scientists has recently conducted a series of observations in which NuSTAR was temporarily repurposed and turned to focus on the Sun instead.These observations pose an interesting challenge precisely because of NuSTARs extreme sensitivity: pointing at such a nearby, bright source can quickly swamp the detectors. But though the instrument cant be used to observe the bright flares and outbursts from the Sun, its the perfect tool for examining the parts of the Sun weve been unable to explore in hard X-rays before now such as faint flares, or the quiet, inactive solar surface.In a recently published study led by Brian Grefenstette (California Institute of Technology), the team describes the purpose and initial results of NuSTARs first observations of the Sun.Solar MysteriesWhat is NuSTAR hoping to accomplish with its solar observations? There are two main questions that hard X-ray observations may help to answer.How are particles accelerated in

  11. Influence of yield on in vitro accumulation of aflatoxins in pecan (Carya illinoensis (Wang.) K. Koch) nutmeats.

    OpenAIRE

    McMeans, J L

    1983-01-01

    Pecans were harvested from trees (Carya illinoensis (Wang.) K. Koch) in November of 1977 through 1979. Kernel meals from high-, medium-, and low-yielding trees were inoculated with a spore suspension of Aspergillus parasiticus and incubated for 7 days at 25 degrees C. Significant differences in aflatoxin accumulation were found among the three substrates, with a direct correlation between high aflatoxin concentration and tree yield.

  12. Influence of yield on in vitro accumulation of aflatoxins in pecan (Carya illinoensis (Wang.) K. Koch) nutmeats.

    Science.gov (United States)

    McMeans, J L

    1983-02-01

    Pecans were harvested from trees (Carya illinoensis (Wang.) K. Koch) in November of 1977 through 1979. Kernel meals from high-, medium-, and low-yielding trees were inoculated with a spore suspension of Aspergillus parasiticus and incubated for 7 days at 25 degrees C. Significant differences in aflatoxin accumulation were found among the three substrates, with a direct correlation between high aflatoxin concentration and tree yield.

  13. Wang Bingnan and Rewi Alley In His Later Years——In Commemoration of CPAFFC’s 60th Anniversary

    Institute of Scientific and Technical Information of China (English)

    Lu; Wanru

    2014-01-01

    <正>In the summer of 1975,the"cultural revolution"had not yet come to an end;there were still repercussions with the struggle against the"Gang of Four"escalating daily.Heavyhearted people in China were expecting a storm that would bring about a radical change in the situation.It was at this moment that Comrade Wang Bingnan,a veteran revolutionary and diplomat well known at

  14. Micropropagation of Chirita langshanica W. T. Wang%崀山唇柱苣苔的快速繁殖

    Institute of Scientific and Technical Information of China (English)

    金雪琼; 李霖明; 宋希强; 余文刚

    2009-01-01

    @@ 1 植物名称 崀山唇柱苣苔(Chirita langshanica W.T.Wang). 2 材料类别 成熟种子(种子采集于2008年9月18日,湖南省新宁县崀山乡公路旁干旱的丹霞地貌红色砂砾石的石壁上).

  15. A description of preimaginal stages of Pseudaspidapion botanicum Alonso-Zarazaga & Wang, 2011 (Apionidae, Curculionoidea)

    OpenAIRE

    Zhiliang Wang; Miguel Alonso-Zarazaga; Da-Kang Zhou; Runzhi Zhang

    2013-01-01

    The preimaginal stages including egg, mature larva and pupa of Pseudaspidapion botanicum Alonso-Zarazaga & Wang, 2011 were described and figured, diagnostic characters of larva and pupa were discussed, and corresponding biological information was supplied. The nomenclature of frontal setae in the larva compared with curculionid weevils, the absence of the hypopharyngeal bracon in the larva, and the metafemoral setae in the pupa were discussed. Common and different characters among the lar...

  16. Corrigendum to "The antibody against a nuclear autoantigenic sperm protein can result in reproductive failure" by M. Wang et al.

    Institute of Scientific and Technical Information of China (English)

    Min Wang; Jian-Li Shi; Guo-Yan Cheng; Yan-Qing Hu; Chen Xu

    2009-01-01

    @@ In published paper by M. Wang et al [1], the Table 2 in page 186 was inadvertently misrepresented. The correct statistical method of the average litter size and standard error should ount all animals (including non-pregnant which were considered to have zero pups) whereas we had included only mice that had been pregnant previously.Now, the correct representation of Table 2 should be:

  17. Historia Funcional de Morfologías Lingüísticas y su Efecto en un Ajuste Convencional

    Directory of Open Access Journals (Sweden)

    Nataly Yáñez Ramírez

    2011-01-01

    Full Text Available Se observó si diferentes historias funcionales construidas durante la adquisición de un conjunto de morfologías lingüísticas facilitaban un ajuste convencional. Participaron 24 estudiantes universitarios distribuidos en tres grupos, expuestos a entrenamientos construidos bajo la lógica de diferentes niveles de interacción: contextual, suplementario o selector (Ribes y López, 1985; y posteriormente se evaluó su ejecución en una tarea convencional. El entrenamiento cuyo criterio de ajuste era de tipo selector fue la que más facilitó tanto la adquisición de las morfologías lingüísticas como su uso en la tarea, efecto que pareció más evidente en los hablantes que en los escuchas. No se encontraron diferencias entre los entrenamientos contextual y suplementario. Los resultados se discuten en términos de sus implicaciones teóricas y metodológicas.

  18. Evaluación lingüística de la producción oral bajo trastornos mentales

    Directory of Open Access Journals (Sweden)

    Raquel Bruzual

    2009-01-01

    Full Text Available Esta investigación tiene como objetivo evaluar, desde un punto de vista lingüístico, la producción oral de sustantivos y verbos emitidos por un sujeto adulto con trastornos mentales. Para alcanzar el objetivo propuesto se analizaron los aportes de Puyuelo (2000, Payrato (2003, Abusamra y colaboradores (2004, entre otros. La metodología consistió en el estudio de casos y la descripción. La misma permitió analizar una muestra de 100 palabras producidas por el sujeto encuestado a quien se le aplicó una entrevista familiar y tres pruebas para determinar la producción oral de sustantivos, la producción oral de verbos y la producción de verbos y sustantivos dentro de un contexto. Los resultados indican que el nivel lingüístico alcanzado, de acuerdo con las características de su fonología, sintaxis, morfología, semántica y pragmática, corresponden a las de un niño de 2-4 años. Se concluye que en el caso estudiado, la persona presenta un trastorno de producción del lenguaje, que puede ser de origen neurológico.

  19. Escritura expositiva en tres niveles de escolaridad: coherencia y dominio de recursos lingüísticos

    Directory of Open Access Journals (Sweden)

    Soledad Concha

    2010-01-01

    Full Text Available El estudio explora la capacidad de estudiantes de tres niveles de escolaridad -5º Básico, Iº Medio y 4º Medio- para producir textos expositivos coherentes utilizando los recursos lingüísticos con que se construye la coherencia local en la escritura expositiva. Se trabajó con alumnos de dos colegios municipalizados de Santiago, quienes redactaron textos expositivos a partir de un ítem de respuesta abierta extensa. Sus textos fueron codificados con dos rúbricas para medir la coherencia local (CL y los recursos lingüísticos involucrados en la coherencia local (RCL. Los resultados muestran un ascenso significativo en el desempeño para la medida RCL a lo largo de los tres niveles escolares, pero no para la medida CL.The study focused on 5th grade, 9th grade and 12th grade students' ability to produce coherent expository texts and to use the linguistic resources with which local coherence is achieved in expository writing. Participants belonged to two public schools in Santiago, Chile, and their expository writing was elicited with writing prompts. Products of writing were coded using two different rubrics: Local Coherence (LC and Local Coherence Resources (LCR. Results reveal a significant improvement for the measure LCR across age groups, but not for LC.

  20. N-gramas sintácticos y su uso en la lingüistica computacional

    Directory of Open Access Journals (Sweden)

    Grigori Sidorov

    2013-05-01

    Full Text Available En este artículo, estamos introduciendo un nuevo concepto que se utilizará en la lingüística computacional, se llama n-gramas sintácticos: son n-gramas que se construyen siguiendo un árbol sintáctico. Es equivalente a introducir la información sintáctica en los métodos de aprendizaje automático, que siempre era un problema muy difícil. Discutimos los elementos que pueden formar estos n-gramas: palabras, clases gramaticales (POS tags, nombres de relaciones sintácticas, caracteres. Consideramos dos ejemplos de cómo se puede obtener los n-gramas sintácticos basándonos en un árbol sintáctico, tanto para el español como para el inglés. Adicionalmente, presentamos un modelo más utilizando de solución de problemas de la lingüística computacional, específicamente, el modelo de espacio vectorial.