WorldWideScience

Sample records for hardi himoja argo

  1. Hardiness among Elderly Women.

    Science.gov (United States)

    Wagnild, Gail; Young, Heather

    Hardiness has been defined as a mediator in life stress and, within the health/illness context, has been conceptualized as a personality characteristic. This study used a descriptive exploratory design to examine the concept of hardiness among elderly women. The Stress, Appraisal, and Coping model developed by Lazarus and Folkman (1986) was the…

  2. ARGO-YBJ Highlights

    CERN Document Server

    Di Sciascio, G

    2010-01-01

    The ARGO-YBJ experiment is a multipurpose detector exploiting the full-coverage approach at very high altitude. The apparatus is in stable data taking since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm$^2$). In this paper we report the main results in Gamma-Ray Astronomy and Cosmic Ray Physics after about 3 years of operations.

  3. The ARGO Project

    Science.gov (United States)

    Kozameh, C. N.

    El proyecto µARGO propone el desarrollo, construcción y operación del Observatorio Espacial de Rayos Gamma, que operará en una órbita terrestre. Este observatorio constará de un telescopio con capacidad de medir simultáneamente dirección de incidencia y polarización de rayos Gamma en dos rangos de energía: 50 KeV - 3 MeV y 10 MeV - 1 GeV. Para ello se usarán detectores de silicio de última generación y microelectrónica adaptada a la configuración. La masa total en órbita del observatorio estará en el orden de los 60 - 100 kg. dependiendo de la geometría adoptada lo que permitirá minimizar costos de desarrollo y construcción, sin perder por ello calidad en su misión científica. ? Desde el punto de vista energético μARGO cubrirá el rango cubierto por COMPTEL y EGRET del CGRO, duplicando como mínimo la resolución angular de ambos con una reducción de peso de dos órdenes de magnitud. En adición, μARGO podr´ medir la polarización incidente de los rayos energéticos. Si bien existen otros dos proyectos en marcha (GLAST y AGILE) para reemplazar EGRET que serán lanzados antes que μARGO, estos proyectos no están diseñados para medir polarización ni tampoco cubren el rango mas bajo de energía arriba mencionado.

  4. Generalized noncommutative Hardy and Hardy-Hilbert type inequalities

    DEFF Research Database (Denmark)

    Hansen, Frank; Krulic, Kristina; Pecaric, Josip

    2010-01-01

    We extend and unify several Hardy type inequalities to functions whose values are positive semi-definite operators. In particular, our methods lead to the operator versions of Hardy-Hilbert's and Godunova's inequalities. While classical Hardy type inequalities hold for parameter values p > 1...

  5. Katrin & Argo Vaikla / Gitte Hint

    Index Scriptorium Estoniae

    Hint, Gitte

    2004-01-01

    Argo (sünd. 1966) ja Katrin (sünd. 1964) Vaikla eesti sisearhitektuurist, arhitektuurist, kodu kujundamisest, keskkonna mõjust inimesele jm. Argo ja Katrin Vaiklast, omistatud preemiad. 1992. a. asutasid disaini- ja sisearhitektuuribüroo AS Vaikla Disain. Olulisemad Vaikla Disaini projektide alusel teostatud sisekujundused. Ill.: värv. foto A. ja K. Vaiklast

  6. Systemwide Power Management with Argo

    Energy Technology Data Exchange (ETDEWEB)

    Ellsworth, Daniel; Patki, Tapasya; Perarnau, Swann; Seo, Sangmin; Yoshii, Kazutomo; Hoffmann, Henry; Schulz, Martin; Beckman, Pete

    2016-05-23

    The Argo project is a DOE initiative for designing a modular operating system/runtime for the next generation of supercomputers. A key focus area in this project is power management, which is one of the main challenges on the path to exascale. In this paper, we discuss ideas for systemwide power management in the Argo project. We present a hierarchical and scalable approach to maintain a power bound at scale, and we highlight some early results.

  7. Wessex in Hardy's Novel

    Institute of Scientific and Technical Information of China (English)

    袁野

    2008-01-01

    Thomas Hardy is a novelist and poet,generally regarded as one of the outstanding figures in English literature.Most of his novels take place in the"partly-real,partly-dream"county of Wessex(named after the Anglo-Saxon kingdom which existed in the area)and called Wessex Novel.It is regarded as the reflection of his hometown Dorset.His novel creation could be generally divided into three periods.The first peried was romantic and pastoral;the masterpieces are Under the Green Tree and Far from the Madding Crowd.His second period mainly focuses on the social tragedy of Wessex,such as The Return of the Native and The Mayor of Casterbridge.In the last period of his creation,he began to write the pessimistic fate of the villagers in Wessex,this could be seen through Tess of the D'Urbervilles and Jude the Obscure.From the evolution of Wessex we can know the English society in the 19th century as well as Hardy's love for his hometown and his individual philosophy.

  8. Puitmaja klaster : intervjuu Argo Sauliga / Argo Saul ; intervjueerinud Kalle Komissarov

    Index Scriptorium Estoniae

    Saul, Argo

    2010-01-01

    Eesti Puitmajaliidu juhatuse esimehe ning Nordic Houses osaniku ja juhatuse esimehe Argo Sauliga arhitektide ja tüüpmaja tootjate võimalikust koostööst Eesti puitmaja klastris, millega Eesti Arhitektide Liit on liitunud. Nordic Houses on norra arhitektide projektide järgi tootnud ja tarninud üle 700 puhkemaja Norrasse

  9. Reval Hotel Lietuva / Argo Vaikla

    Index Scriptorium Estoniae

    Vaikla, Argo, 1966-

    2004-01-01

    Vilniuse hotelli "Lietuva" renoveerimine. Arhitektuurne renoveerimisprojekt: Aare Saks, Nils Palm (SWECO FFNS Arkitekter AB, Rootsi), Rolandas Palekas (UAB Viltekta). Sisekujundus: Katrin ja Argo Vaikla, Liis Lindvere, Peeter Loo (Vaikla Disain AS). Ehitaja: Merko Statyba UAB. Projekt 2002, valmis 2003. I korruse plaan, välisvaade, 4 sisevaadet

  10. Animal Tracking ARGOS vs GPS

    Science.gov (United States)

    Robinson, P. W.; Costa, D.; Arnould, J.; Weise, M.; Kuhn, C.; Simmons, S. E.; Villegas, S.; Tremblay, Y.

    2006-12-01

    ARGOS satellite tracking technology has enabled a tremendous increase in our understanding of the movement patterns of a diverse array of marine vertebrates from Sharks to marine mammals. Our current understanding has moved from simple descriptions of large scale migratory patterns to much more sophisticated comparisons of animal movements and behavior relative to oceanic features. Further, animals are increasingly used to carry sensors that can acquire water column temperature and salinity profiles. However, a major limitation of this work is the spatial precision of ARGOS locations. ARGOS provides 7 location qualities that range from 3,2,1,0,A,B,Z and correspond to locations with a precision of 150m to tens of kilometers. Until recently, GPS technology could not be effectively used with marine mammals because they did not spend sufficient time at the surface to allow complete acquisition of satellite information. The recent development of Fastloc technology has allowed the development of GPS tags that can be deployed on marine mammals. Here we compare the location quality and frequency derived from standard ARGOS PTTs to Fastloc GPS locations acquired from 11 northern elephant seals, 5 California and 5 Galapagos sea lions and 1 Cape and 3 Australian fur seals. Our results indicate that GPS technology will greatly enhance our ability to understand the movement patterns of marine vertebrates and the in-situ oceanographic data they collect.

  11. STATIC ANALYSIS FOR HARDY COUPLI

    Directory of Open Access Journals (Sweden)

    MIHAELA Urdea

    2014-07-01

    Full Text Available Couplings are machine parts for transmitting rotational movement and torque without changing the law of movement. Couplings have a great variety of constructive shapes; this paper refers to elastic couplings especially to Hardy couplings. The main goal of this work is to generate a finite element model for a Hardy coupling. In order to prepare the model for analysis with finite element, the coupling has been modeled in CATIA, especially for this activity. The analysis model should have the same behavior as in reality, so the contact with shafts and keyways is replaced with rigid elements.

  12. The Hardy-Weinberg Principle

    Science.gov (United States)

    McMurran, Shawnee L.

    2010-01-01

    This module was initially developed for a course in applications of mathematics in biology. The objective of this lesson is to investigate how the allele and genotypic frequencies associated with a particular gene might evolve over successive generations. The lesson will discuss how the Hardy-Weinberg model provides a basis for comparison when…

  13. Non-commutative Hardy inequalities

    DEFF Research Database (Denmark)

    Hansen, Frank

    2009-01-01

    We extend Hardy's inequality from sequences of non-negative numbers to sequences of positive semi-definite operators if the parameter p satisfies 1 1. Applications to trace functions are given. We introduce the tracial geometric mean...... and generalize Carleman's inequality....

  14. Hardy spaces for the strip

    Science.gov (United States)

    Bakan, Andrew; Kaijser, Sten

    2007-09-01

    In this paper we shall study Hardy spaces of analytic functions in a strip . Our main result is on one hand an intrinsic characterization of the spaces and on the second that polynomials are dense. We also present an orthogonal (in ) basis of polynomials.

  15. Moderating Argos location errors in animal tracking data

    Science.gov (United States)

    Douglas, David C.; Weinziert, Rolf; Davidson, Sarah C.; Kays, Roland; Wikelski, Martin; Bohrer, Gil

    2012-01-01

    1. The Argos System is used worldwide to satellite-track free-ranging animals, but location errors can range from tens of metres to hundreds of kilometres. Low-quality locations (Argos classes A, 0, B and Z) dominate animal tracking data. Standard-quality animal tracking locations (Argos classes 3, 2 and 1) have larger errors than those reported in Argos manuals.

  16. Euro-Argo: The European contribution to the global Argo ocean observations network

    Science.gov (United States)

    Gourcuff, Claire

    2017-04-01

    The international Argo programme is a major element of the global in-situ ocean observing system. More than 3900 floats are now globally measuring temperature and salinity throughout the global oceans, down to 2,000 meters depth and delivering data both in real time for operational users and after careful scientific quality control for climate change research and monitoring. Argo is the single most important in-situ observing system for the Copernicus Marine Service. The Euro-Argo research infrastructure organizes and federates European contribution to Argo. A legal and governance framework (Euro-Argo ERIC) was set up in May 2014; it allows European countries to consolidate and improve their contribution to Argo international. We will provide an overview of the development of Euro-Argo over the past years and present the now agreed Euro-Argo long term organization. The capability of the Euro-Argo infrastructure to organize Argo floats procurement, deployment and processing at European level and to conduct R&D driven by Copernicus needs will be highlighted. During the recent years, within the H2020 E-AIMS project, Euro-Argo carried R&D activities on new Argo floats, equipped with biogeochemical sensors or able to dive up to 4000m, from the floats design up to the analysis of their measurements. European Argo data centers were adapted so that they can handle the new data. Observing System Evaluations and Simulation Experiments were also conducted to provide robust recommendations for the next phase of Argo. One of the main challenges for Euro-Argo is now to implement the next phase of Argo with an extension towards biogeochemistry (e.g. oxygen, biology), the polar oceans, the marginal seas and the deep ocean. Meeting such challenges is essential for the long term sustainability and evolution of the Copernicus Marine Service. We will present Euro-Argo strategy and provide some highlights on the implementation-plan for the years to come and the Argo extensions for the

  17. Hardy spaces via distribution spaces

    Institute of Scientific and Technical Information of China (English)

    LIU Liguang

    2007-01-01

    Let (y)(Rn) be the Schwartz class on Rn and (y)∞(Rn) be the collection of functions (P) (E) (Y)(Rn) with additional property that ∫Rn xγ(p)(x)dx=0for all multiindices γ.Let ((y):(Rn))' and ((y)∞(Rn))' be their dual spaces,respectively.In this paper, it is proved that atomic Hardy spaces defined via ((y)(Rn))' and ((y)∞(Rn))' coincide with each other in some sense.As an application, we show that under the condition that the Littlewood-Paley function of f belongs to LP(Rn) for some p (e) (0, 1], the condition f (e) ((Y)∞(Rn))' is equivalent to that f (e) ((y)(Rn))' and f vanishes weakly at infinity. We further discuss some new classes of distributions defined via (y)(Rn) and (y)∞(Rn), also including their corresponding Hardy spaces.

  18. Linear isometries of Hardy spaces

    Institute of Scientific and Technical Information of China (English)

    Edoardo VESENTINI

    2008-01-01

    According to results established by DeLeeuw-Rudin-Wermer and by Forelli,all linear isometries of any Hardy space Hp (p ≥ 1,p ≠ 2) on the open unit disc △ of C are represented by weighted composition operators defined by inner functions on △.After reviewing (and completing when p = ∞) some of those results,the present report deals with a characterization of periodic and almost periodic semigroups of linear isometries of Hp.

  19. OBIS - ARGOS Satellite Tracking of Animals

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Various species have been tracked using ARGOS PTT trackers since the early 1990's. These include Emperor, King and Adelie pengiuns, Light-mantled Sooty, Grey-headed...

  20. 两参数Hardy-Hilbert不等式%Hardy-Hilbert's Inequalities With Two Parameters

    Institute of Scientific and Technical Information of China (English)

    徐景实

    2007-01-01

    In this paper, the author discusses Hardy-Hilbert's inequalities with two parameters and their variants. These are generalizations of Hardy-Hilbert's inequalities with one parameter in recent literatures.%讨论了两参数Hardy-Hilbert不等式和它们的一些变形.这些不等式推广了近年文献中的单参数Hardy-Hilbert不等式.

  1. The Effects of a Hardiness Educational Intervention on Hardiness and Perceived Stress of Baccalaureate Nursing Students

    Science.gov (United States)

    Jameson, Paula R.

    2012-01-01

    Despite the known benefits of hardiness education, no published research has been found on the effects of hardiness education with nursing students. Thus, the purposes of this study were first to determine if an increase in hardiness and a decrease in perceived stress in baccalaureate nursing students occurred in those who participated in a…

  2. Thomas Hardy's Victorian Gothic: Reassessing Hardy's Fiction and His Gothic Sensibility.

    Science.gov (United States)

    Goldstein, Norma Walrath

    Proposing that Thomas Hardy's fiction exhibits strong Gothic sensibilities which offer insight into his artistic vision and add to the power of his fiction, creating a new form of the Gothic, a Victorian Gothic, this dissertation reassesses the Gothic strains in Hardy's fiction. The dissertation is in eight chapters: (1) Introduction to Hardy's…

  3. Linear isometries of Hardy spaces

    Institute of Scientific and Technical Information of China (English)

    Edoardo; VESENTINI

    2008-01-01

    According to results established by DeLeeuw-Rudin-Wermer and by Forelli,all linear isometries of any Hardy space H~p(p≥1,p≠2)on the open unit discΔof C are represented by weighted composition operators defined by inner functions onΔ.After reviewing(and completing when p=∞)some of those results,the present report deals with a characterization of periodic and almost periodic semigroups of linear isometries of H~p.

  4. Bilateral Hardy-type Inequalities

    Institute of Scientific and Technical Information of China (English)

    Mu Fa CHEN

    2013-01-01

    This paper studies the Hardy-type inequalities on the intervals (may be infinite) with two weights,either vanishing at two endpoints of the interval or having mean zero.For the first type of inequalities,in terms of new isoperimetric constants,the factor of upper and lower bounds becomes smaller than the known ones.The second type of the inequalities is motivated from probability theory and is new in the analytic context.The proofs are now rather elementary.Similar improvements are made for Nash inequality,Sobolev-type inequality,and the logarithmic Sobolev inequality on the intervals.

  5. On Conception of Nature in Hardy's Poems

    Institute of Scientific and Technical Information of China (English)

    赵薇

    2015-01-01

    As a briliant poet in modern English literature, Thomas Hardy is most famous for his natural poems, in which Hardy proposed that Human and nature are in harmony while contradictory. In this essay, the author analyzed the relationship between men and nature and two methods of writing to express his love for nature.

  6. On Hardy-type integral inequalities

    Institute of Scientific and Technical Information of China (English)

    冷拓; 冯勇

    2013-01-01

    The Hardy integral inequality is one of the most important inequalities in analysis. The present paper establishes some new Copson-Pachpatte (C-P) type inequal-ities, which are the generalizations of the Hardy integral inequalities on binary functions.

  7. On the Hardy-Littlewood maximal theorem

    Directory of Open Access Journals (Sweden)

    Shinji Yamashita

    1982-01-01

    Full Text Available The Hardy-Littlewood maximal theorem is extended to functions of class PL in the sense of E. F. Beckenbach and T. Radó, with a more precise expression of the absolute constant in the inequality. As applications we deduce some results on hyperbolic Hardy classes in terms of the non-Euclidean hyperbolic distance in the unit disk.

  8. The Hardy Space of a Slit Domain

    CERN Document Server

    Aleman, Alexandru

    2009-01-01

    Beginning with an exposition of Hardy spaces of slit domains, this book proceeds to several descriptions of the invariant subspaces of the operator multiplication by z. It also discusses and characterizes the nearly invariant subspaces of these Hardy spaces and examines conditions for z-invariant subspaces to be cyclic.

  9. Hardy type inequalities on time scales

    CERN Document Server

    Agarwal, Ravi P; Saker, Samir H

    2016-01-01

    The book is devoted to dynamic inequalities of Hardy type and extensions and generalizations via convexity on a time scale T. In particular, the book contains the time scale versions of classical Hardy type inequalities, Hardy and Littlewood type inequalities, Hardy-Knopp type inequalities via convexity, Copson type inequalities, Copson-Beesack type inequalities, Liendeler type inequalities, Levinson type inequalities and Pachpatte type inequalities, Bennett type inequalities, Chan type inequalities, and Hardy type inequalities with two different weight functions. These dynamic inequalities contain the classical continuous and discrete inequalities as special cases when T = R and T = N and can be extended to different types of inequalities on different time scales such as T = hN, h > 0, T = qN for q > 1, etc.In this book the authors followed the history and development of these inequalities. Each section in self-contained and one can see the relationship between the time scale versions of the inequalities and...

  10. The analysis and geometry of Hardy's inequality

    CERN Document Server

    Balinsky, Alexander A; Lewis, Roger T

    2015-01-01

    This volume presents advances that have been made over recent decades in areas of research featuring Hardy's inequality and related topics. The inequality and its extensions and refinements are not only of intrinsic interest but are indispensable tools in many areas of mathematics and mathematical physics. Hardy inequalities on domains have a substantial role and this necessitates a detailed investigation of significant geometric properties of a domain and its boundary. Other topics covered in this volume are Hardy- Sobolev-Maz’ya inequalities; inequalities of Hardy-type involving magnetic fields; Hardy, Sobolev and Cwikel-Lieb-Rosenbljum inequalities for Pauli operators; the Rellich inequality.   The Analysis and Geometry of Hardy’s Inequality provides an up-to-date account of research in areas of contemporary interest and would be suitable for a graduate course in mathematics or physics. A good basic knowledge of real and complex analysis is a prerequisite.

  11. Argos Americano: incertidumbre e independencia

    Directory of Open Access Journals (Sweden)

    Julián Penagos Carreño

    2015-01-01

    Full Text Available El presente artículo es el resultado del análisis léxico métrico al periódico cartagenero el Argos Americano. Papel político, económico y literario de Cartagena de Indias (Septiembre de 1810 -Marzo de 1812 , que muestra las distintas discusiones que se dieron en torno a temas como nación, gobierno e independencia durante una época turbulenta cuando España había sido invadida por los ejércitos de Napoleón, y el rey Fernando VII fue hecho prisionero, lo cual dejó un vacío de poder que sumió a las provincias del continente americano en la incertidumbre por definir un gobierno. Este trabajo hace parte del proyecto de investigación Historia Cultural de la Prensa en la Nueva Granada ( 1810-1820 , patrocinado por la Dirección de Investigaciones y la Facultad de Comunicación de la Universidad de La Sabana.

  12. The hardy personality: cognitive and physiological responses to evaluative threat.

    Science.gov (United States)

    Allred, K D; Smith, T W

    1989-02-01

    Hardy persons are hypothesized to be resistant to stress-induced illness, because of their adaptive cognitive style and a subsequently reduced level of physiological arousal. We assessed the cognitive and physiological responses of high and low hardy male undergraduates to a challenging task under high and low evaluative threat. As predicted, hardy subjects endorsed more positive self-statements than did low hardy subjects in the high threat condition. High hardy subjects also reported fewer negative self-statements overall, but this was attributable to the overlap of measures of hardiness and neuroticism. Hardy subjects displayed marginally lower arousal while waiting for the task to begin, but this finding did not approach significance when neuroticism was controlled. Hardy subjects also had higher levels of systolic blood pressure, perhaps because of their active coping efforts. Results support the hypothesized hardy cognitive style but raise questions about the type and timing of organismic strain linking hardiness and health.

  13. Orwell's Thrush Is a Hardy Bird.

    Science.gov (United States)

    Gray, W. Russell

    1984-01-01

    Explores the linkages between Thomas Hardy's poem "The Darkling Thrush" and the thrush scene in George Orwell's novel "1984." Suggests a variety of enrichment projects for students that deal with aspects of these two works. (RBW)

  14. COMPOSITION OPERATORS ON HARDY-ORLICZ SPACES

    Institute of Scientific and Technical Information of China (English)

    Liu Lifang; Cao Guangfu; Wang Xiaofeng

    2005-01-01

    Properties of composition operators induced by analytic self-maps on the unit disk of the complex plane in Hardy-Orlicz spaces are discussed. Results are concerned about boundedness, invertibility, compactness, Fredholm operators and spectra of composition operators.

  15. Hardy's test for local realism

    Science.gov (United States)

    Nguyen, Quynh; Dregli, Aurelio

    2014-03-01

    We demonstrated the violation of Bell inequality using entangled photons produced by spontaneous parametric down-conversion. The experiment is based on a local realism test originally proposed by Lucien Hardy. Polarized entangled photons is produced in down-conversion through a pair of beta barium borate crystals. Polarization is adjusted by half wave plates and quartz plates. Single photons travel down two separate paths, each pass through a half-wave plate and a broad band polarizing beam splitter. Light from the beam splitter is collected by lens and focused into optic fibers that direct light into a single photon counting module. Coincidence counting is done using time-to-amplitude converter/single-channel-analyzer units. The probabilities in Bell-Clauser-Horne inequality is calculated by the ratio of the measured coincidence counts on the transmitted laser beams to the total number of coincidence. The counting is done by a LabVIEW program. We find the data to violate local realism by 30 standard deviation. The experiment is based on straight forward quantum mechanical calculations and experimental techniques more accessible to undergraduate students than other methods of testing Bell inequalities.

  16. ARGO-YBJ: Status and Highlights

    CERN Document Server

    Di Sciascio, G

    2012-01-01

    The ARGO-YBJ experiment is in stable data taking since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm$^2$). ARGO-YBJ is facing open problems in Cosmic Ray (CR) physics in different ways. The search for CR sources is carried out by the observation of TeV gamma-ray sources both galactic and extra-galactic. The CR spectrum, composition and anisotropy are measured in a wide energy range (TeV - PeV) thus overlapping for the first time direct measurements. In this paper we summarize the current status of the experiment and describe some of the scientific highlights since 2007.

  17. Weighted hardy type integral inequalities involving many functions

    Directory of Open Access Journals (Sweden)

    Sabir Hussain

    2012-06-01

    Full Text Available The object of this paper is to derive some new weighted Hardy type integral inequalities involving many functions and to obtain a classical weighted Hardy type inequality involving many functions.

  18. Hardiness and Grief in a Sample of Bereaved College Students

    Science.gov (United States)

    Mathews, Laura L.; Servaty-Seib, Heather L.

    2007-01-01

    The relationship between hardiness and both grief symptoms and personal growth were investigated in a sample of bereaved college students. Hardiness was inversely associated with grief symptoms and offered prediction of grief misery above and beyond that provided by more commonly investigated individual and death-related variables. Hardiness was…

  19. Hardy inequalities in strips on ruled surfaces

    Directory of Open Access Journals (Sweden)

    2006-01-01

    Full Text Available We consider the Dirichlet Laplacian in infinite two-dimensional strips defined as uniform tubular neighbourhoods of curves on ruled surfaces. We show that the negative Gauss curvature of the ambient surface gives rise to a Hardy inequality and we use this to prove certain stability of spectrum in the case of asymptotically straight strips about mildly perturbed geodesics.

  20. Remarks on a Sobolev-Hardy inequality

    OpenAIRE

    Secchi, S.; Smets, D.; Willem, M

    2002-01-01

    We compute the optimal constant for a generalized Hardy-Sobolev inequality, and using the product of two symmetrizations we present an elementary proof of the symmetries of some optimal functions. This inequality was motivated by a nonlinear elliptic equation arising in astrophysics.

  1. The effects of a hardiness educational intervention on hardiness and perceived stress of junior baccalaureate nursing students.

    Science.gov (United States)

    Jameson, Paula R

    2014-04-01

    Baccalaureate nursing education is stressful. The stress encompasses a range of academic, personal, clinical, and social reasons. A hardiness educational program, a tool for stress management, based on theory, research, and practice, exists to enhance the attitudes and coping strategies of hardiness (Maddi, 2007; Maddi et al., 2002). Research has shown that students who completed the hardiness educational program, subsequently improved in grade point average (GPA), college retention rates, and health (Maddi et al., 2002). Little research has been done to explore the effects of hardiness education with junior baccalaureate nursing students. Early identification of hardiness, the need for hardiness education, or stress management in this population may influence persistence in and completion of a nursing program (Hensel and Stoelting-Gettelfinger, 2011). Therefore, the aims were to determine if an increase in hardiness and a decrease in perceived stress in junior baccalaureate nursing students occurred in those who participated in a hardiness intervention. The application of the Hardiness Model and the Roy Adaptation Model established connections and conceptual collaboration among stress, stimuli, adaptation, and hardi-coping. A quasi-experimental non-equivalent control group with pre-test and post-test was used with a convenience sample of full-time junior level baccalaureate nursing students. Data were collected from August 2011 to December 2011. Results of statistical analyses by paired t-tests revealed that the hardiness intervention did not have a statistically significant effect on increasing hardiness scores. The hardiness intervention did have a statistically significant effect on decreasing perceived stress scores. The significant decrease in perceived stress was congruent with the Hardiness Model and the Roy Adaptation Model. Further hardiness research among junior baccalaureate nursing students, utilizing the entire hardiness intervention, was recommended.

  2. The Impact of "Bad" Argo Profiles on Ocean Data Assimilation

    Institute of Scientific and Technical Information of China (English)

    YAN Chang-Xiang; ZHU Jiang

    2010-01-01

    Recent studies have found cold biases in a fraction of Argo profiles (hereinafter referred to as bad Array for Real-time Geostrophic Oceanography (Argo) profiles) due to the pressure drifts during 2003 and 2006. These bad Argo profiles have had an important impact on in situ observation-based global ocean heat content estimates. This study investigated the impact of bad Argo profiles on ocean data assimilation results that were based on observations from diverse ocean observation systems, such as in situ profiles (e.g., Argo, expendable bathythermograph (XBT), and Tropical Atmosphere Ocean (TAO), remote-sensing sea surface temperature products and satellite altimetry between 2004 and 2006. Results from this work show that the upper ocean heat content analysis is vulnerable to bad Argo profiles and demonstrate a cooling trend in the studied period despite the multiple independent data types that were assimilated. When the bad Argo profiles were excluded from the assimilation, the decreased heat content disappeared and a warming occurred. Combination of satellite altimetry and mass variation data from gravity satellite demonstrated an increase, which agrees well with the increased heat content. Additionally, when an additional Argo profile quality control procedure was utilized that simply removed the profiles that presented static unstable water columns, the results were very similar to those obtained when the bad Argo profiles were excluded from the assimilation. This indicates that an ocean data assimilation that uses multiple data sources with improved quality control could be less vulnerable to a major observation system failure, such as a bad Argo event.

  3. SZEG? KERNEL FOR HARDY SPACE OF MATRIX FUNCTIONS

    Institute of Scientific and Technical Information of China (English)

    Fuli HE; Min KU; Uwe K ?HLER

    2016-01-01

    By the characterization of the matrix Hilbert transform in the Hermitian Clifford analysis, we introduce the matrix Szeg? projection operator for the Hardy space of Hermitean monogenic functions defined on a bounded sub-domain of even dimensional Euclidean space, establish the Kerzman-Stein formula which closely connects the matrix Szeg? projection operator with the Hardy projection operator onto the Hardy space, and get the matrix Szeg? projection operator in terms of the Hardy projection operator and its adjoint. Furthermore, we construct the explicit matrix Szeg? kernel function for the Hardy space on the sphere as an example, and get the solution to a boundary value problem for matrix functions.

  4. General Hardy's inequalities for functions nonzero on the boundary

    Institute of Scientific and Technical Information of China (English)

    CHEN Zhihui; SHEN Yaotian

    2007-01-01

    Consider Hardy's inequalities with general weight φ for functions nonzero on the boundary. By an integral identity in C1(Ω), define Hilbert spaces H1k(Ω,φ) called Sobolev-Hardy spaces with weightφ. As a corollary of this identity, Hardy's inequalities with weight φ in C1(Ω) follow. At last,by Hardy's inequalities with weightφ = 1, discuss the eigenvalue problem of the Laplace-Hardy operator with critical parameter (N - 2)2/4 inH11(Ω).

  5. Informing Deep Argo Array Design Using Argo and Full-Depth Hydrographic Section Data

    Science.gov (United States)

    Johnson, G. C.; Lyman, J. M.; Purkey, S.

    2016-02-01

    Data from full-depth closely sampled hydrographic sections and Argo floats are analyzed to inform the design of a future Deep Argo array. Here standard errors of local decadal temperature trends and global decadal trends of ocean heat content and thermosteric sea level anomalies integrated from 2000-6000 dbar are estimated for a hypothetical 5º lat. x 5º long. x 15-day cycle Deep Argo array. These estimates are made using temperature variances from closely spaced, full-depth CTD profiles taken during hydrographic sections. The temperature data along each section are high-passed laterally at a 500-km scale, and the resulting variances averaged in 5º x 5º bins to assess temperature noise levels as a function of pressure and geographic location. A mean global de-correlation time scale of 62 days is estimated using temperature time series at 1800 dbar from Argo floats. The hypothetical Deep Argo array would be capable of resolving, at one standard error, local trends from < 1 mºC decade-1 in the quiescent abyssal North Pacific to about 26 mºC decade-1 below 2000 dbar along 50ºS in the energetic Southern Ocean. Larger decadal temperature trends have been reported previously in these regions using repeat hydrographic section data, but those very sparse data required substantial spatial averaging to obtain statistically significant results. Furthermore, the array would provide decadal global ocean heat content trend estimates from 2000-6000 dbar with a standard error of ±3 TW, compared to a trend standard error of ±17 TW from a previous analysis of repeat hydrographic data.

  6. An insight into hardiness status of medical undergraduates

    Directory of Open Access Journals (Sweden)

    Sanjeev Vasantrao Chincholikar

    2017-05-01

    Full Text Available Background: The construct of hardiness was first introduced by Kobasa and Maddi, who defined it as a resistance resource in encounter with stressful situations. Hardiness is related to three mutually related dispositions-commitment, control, and challenge. Aims and objectives: To explore hardiness status in medical undergraduates and to study the relationship between hardiness and psychological distress. Material and Methods: A cross-sectional study was carried out among medical students of a private medical college in Maharashtra. A validated Hardiness Questionnaire of Kobasa was administered. Scores on control, commitment and challenge were calculated and then summed up to calculate total hardiness score. Psychological distress was measured by SRQ tool, as designed by Mari J.and Williams. Results: The study population comprised of 331 students out of which 39 medical undergraduates had hardiness score less than zero indicating that 12% of study subjects were non- hardy. Significant negative association was observed between hardiness level and psychological distress. Conclusion: It was observed that 12%medical undergraduates were non-hardy. From the analysis of the data, it has been found that there is a fair negative association in hardiness and psychological distress.

  7. Highlights from the ARGO-YBJ experiment

    CERN Document Server

    ,

    2010-01-01

    The ARGO-YBJ experiment is a multipurpose detector exploiting the full coverage approach at very high altitude. The apparatus, in stable data taking since November 2007 with an energy threshold of a few hundreds of GeV and a duty-cycle of about 90 %, is located at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm2). A number of interesting results are available in Cosmic Ray Physics and in Gamma Ray Astronomy after the first 3 years of stable data taking. In this paper Gamma-Ray Astronomy results are summarized.

  8. Recent highlights from ARGO-YBJ

    CERN Document Server

    ,

    2014-01-01

    The ARGO-YBJ experiment has been in stable data taking for 5 years at the YangBaJing Cosmic Ray Observatory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm^2). With a duty-cycle greater than 86% the detector collected about 5 X 10^{11} events in a wide energy range, from few hundreds GeV up to the PeV. A number of open problems in cosmic ray physics has been faced exploiting different analyses. In this paper we summarize the latest results in gamma-ray astronomy and in cosmic ray physics

  9. Recent highlights from ARGO-YBJ

    Science.gov (United States)

    Di Sciascio, Di; ARGO-YBJ Collaboration

    2016-05-01

    The ARGO-YBJ experiment has been in stable data taking for more than 5 years at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.L, 606 g/cm2 ). With a duty-cycle of about 87% the detector collected more than 5×1011 events in a wide energy range, from few hundreds GeV up to 10 PeV. A number of open problems in cosmic ray physics has been faced exploiting different analyses. In this talk we summarize the latest physics results obtained in gamma-ray astronomy and in cosmic ray physics.

  10. Images in Hardy's The Darkling Thrush

    Institute of Scientific and Technical Information of China (English)

    张冉; 高俊丽

    2009-01-01

    In the history of British literature, Hardy is not only an excellent novelist, but also a famous poet. He was regarded as "The Father of Modem Poems". Merryn William thought that only Hardy and Lawrence were the real first-class novelists and poets in British literature.[1] Among his more than 1000 poems, The Darkling Thrush is a typical lyric poem, The excellence not only lies in its elegant language, musical rhythms and vivid description of nature, but also lies in the expression of poet's desolate attitude through images. The nature images play an important role in displaying the theme and expressing the complex feeling. They also express people's anxiety, confusion and expectation toward to the turning of the passing century and the coming of the new century. This paper tries to deeply undrestand the theme of the poems by analysing these images.

  11. On extending the Hardy-Weinberg law

    Directory of Open Access Journals (Sweden)

    Alan E. Stark

    2007-01-01

    Full Text Available This paper gives a general mating system for an autosomal locus with two alleles. The population reproduces in discrete and non-overlapping generations. The parental population, the same in both sexes, is arbitrary as is that of the offspring and the gene frequencies of the parents are maintained in the offspring. The system encompasses a number of special cases including the random mating model of Weinberg and Hardy. Thus it demonstrates, in the most general way possible, how genetic variation can be conserved in an indefinitely large population without invoking random mating or balancing selection. An important feature is that it provides a mating system which identifies when mating does and does not produce Hardy-Weinberg proportions among offspring.

  12. A note on characterization of Hardy space

    Institute of Scientific and Technical Information of China (English)

    WANG; Silei

    2005-01-01

    [1]Stefanov, A., Characterizations of H1 and applications to singular integrals,Illinois J. Math., 2000, 44: 574--592.[2]Hewitt, E., Stromberg, K., Real and Abstract Analysis, New York: Springer-Verlag, 1978.[3]Barrors-Neto, J.,An Introduction to the Theory of Distributions, New York: Marcel Dekker, Inc., 1973.[4]Semmes, S.,A primer on Hardy spaces, and some remarks on a theorem of Evans and Muller,Comm. PDE, 1994, 19: 277--320.[5]Ziemer, W. P.,Weakly Differential Functions, New York: Springer-Verlag, 1989.[6]Zygmund, A.,Integrales Singulieres, New York: Springer-Verlag, 1971.[7]Krantz, S. G.,Fractional integration on Hardy spaces, Studia Math., 1982, 63: 87--94.[8]Duoandikoetxea, J.,Fourier Analysis, Providence: Amer. Math. Soc., 2001.

  13. Experience of the ARGO autonomous vehicle

    Science.gov (United States)

    Bertozzi, Massimo; Broggi, Alberto; Conte, Gianni; Fascioli, Alessandra

    1998-07-01

    This paper presents and discusses the first results obtained by the GOLD (Generic Obstacle and Lane Detection) system as an automatic driver of ARGO. ARGO is a Lancia Thema passenger car equipped with a vision-based system that allows to extract road and environmental information from the acquired scene. By means of stereo vision, obstacles on the road are detected and localized, while the processing of a single monocular image allows to extract the road geometry in front of the vehicle. The generality of the underlying approach allows to detect generic obstacles (without constraints on shape, color, or symmetry) and to detect lane markings even in dark and in strong shadow conditions. The hardware system consists of a PC Pentium 200 Mhz with MMX technology and a frame-grabber board able to acquire 3 b/w images simultaneously; the result of the processing (position of obstacles and geometry of the road) is used to drive an actuator on the steering wheel, while debug information are presented to the user on an on-board monitor and a led-based control panel.

  14. Are Optimistic Repatriates More Hardy and Resilient?

    Science.gov (United States)

    2016-04-05

    Center for POW Studies, Navy Medicine Operational Training Center INTRODUCTION Previous research conducted by the RE Mitchell Center for...NAME(S) AND ADDRESS(ES) Navy Medicine Operational Training Center, 220 Hovey Road, Pensacola, FL, 32508 10. SPONSOR/MONITOR’S ACRONYM(S) NMOTC 11... extraversion ). The “Hardy-Resilient Personality Style” is especially relevant in the context of current highly stressful military operations, where

  15. First measurements with Argo flots in the Southern Baltic Sea

    Science.gov (United States)

    Walczowski, Waldemar; Goszczko, Ilona; Wieczorek, Piotr; Merchel, Malgorzata; Rak, Daniel

    2017-04-01

    The Argo programme is one of the most important elements of the ocean observing system. Currently almost 4000 Argo floats profile global oceans and deliver real time data. Originally Argo floats were developed for open ocean observations. Therefore a standard float can dive up to 2000 m and deep Argo floats are under development. However in the last years the shallow shelf seas become also interesting for Argo users. Institute of Oceanology Polish Academy of Sciences (IOPAN) participates in the Euro-Argo research infrastructure, the European contribution to Argo system. A legal and governance framework (Euro-Argo ERIC) was set up in May 2014. For a few years IOPAN has deployed floats mostly in the Nordic Seas and the European Arctic region. In the end of 2016 the first Polish Argo float was deployed in the Southern Baltic Sea. Building on the successful experience with Argo floats deployed by the Finnish oceanographers in the Bothnian Sea and Gotland Basin, the IOPAN float was launched in the Bornholm Deep during the fall cruise of IOPAN research vessel Oceania. The standard APEX float equipped with 2-way Iridium communication was used and different modes of operation, required for the specific conditions in the shallow and low saline Baltic Sea, were tested. Settings for the Baltic float are different than for the oceanic mode and were frequently changed during the mission to find the optimum solution. Changing the float parking depth during the mission allows for the limited control of the float drift direction. Results of a high resolution numerical forecast model for the Baltic Sea proved to be a valuable tool for determining the parking depth of the float in the different flow regimes. Trajectory and drift velocity of the Argo float deployed in the Southern Baltic depended strongly on the atmospheric forcing (in particular wind speed and direction), what was clearly manifested during the 'Axel' storm passing over the deployment area in January 2017. The first

  16. New developments in the global ocean observing system Argo and its European component EuroArgo

    Science.gov (United States)

    Klein, Birgit

    2017-04-01

    Since about 2005 Argo is the largest source of in situ ocean data, with the number of Argo-profiles exceeding that of all ship-born profiles ever made. Having a dense and near-homogeneous global and temporal coverage, Argo data are essential to derive ocean-state estimates to initialize seasonal and decadal climate model forecasts and to validate climate model output. For instance, Argo data made it possible to accurately determine ocean heat content and show that it kept increasing during the so-called hiatus period (2000-2014), during which atmospheric near-surface temperature stayed almost constant. Climate models ought to be able to reproduce such events. Currently Argo is entering new realms. New floats types are capable of measuring down to 4 km (instead of 2 km until now), and new sensors have been developed that can measure a variety of biogeochemical variables like oxygen, nitrate, or chlorophyll. These new data will be very important to validate and improve Earth System Models. First, about 40% of the ocean volume is in the depth-range 2-4 km, but observations are currently limited to a few sections in space and time. Deep Argo data will make a thorough validation of ocean models in this depth range possible for the first time. Secondly, the large amount of new biogeochemical data becoming available will allow process studies that will lead to improved parameterizations of biogenic and chemical processes in the ocean, improvements that can be implemented in the models to increase their realism. Third, the data form the first-ever set of biogeochemical data that is consistent and homogeneous over a large spatial and temporal extent will make it possible to validate the models to a degree that was hitherto impossible, simply because of the lack of data. The Argo data system is composed of national Data Assembly Centers (DAC) that supply data to two mirrored Global Data Assembly Centers (GDAC). GDAC data exchanges are based on File Transfer Protocol (FTP

  17. Hotelli Palace**** renoveerimine = Renovation of the hotel Palace**** / Argo Vaikla

    Index Scriptorium Estoniae

    Vaikla, Argo, 1966-

    2015-01-01

    Hotell Palace Tallinnas Vabaduse väljak 3, valminud 2014. Hoone rekonstrueerimisprojekt Reet Valk (AB Reet Valk), sisearhitektid Katrin Vaikla, Argo Vaikla, Mari-Liis Süld, Riin Luuk. 2014. aasta Kultuurkapitali Arhitektuuripreemia kandidaat

  18. Hotelli Palace**** renoveerimine = Renovation of the hotel Palace**** / Argo Vaikla

    Index Scriptorium Estoniae

    Vaikla, Argo, 1966-

    2015-01-01

    Hotell Palace Tallinnas Vabaduse väljak 3, valminud 2014. Hoone rekonstrueerimisprojekt Reet Valk (AB Reet Valk), sisearhitektid Katrin Vaikla, Argo Vaikla, Mari-Liis Süld, Riin Luuk. 2014. aasta Kultuurkapitali Arhitektuuripreemia kandidaat

  19. Derivation of the inverse Schulze-Hardy rule.

    Science.gov (United States)

    Trefalt, Gregor

    2016-03-01

    The inverse Schulze-Hardy rule was recently proposed based on experimental observations. This rule describes an interesting situation of the aggregation of charged colloidal particles in the presence of the multivalent coions. Specifically, it can be shown that the critical coagulation concentration is inversely proportional to the coion valence. Here the derivation of the inverse Schulze-Hardy rule based on purely theoretical grounds is presented. This derivation complements the classical Schulze-Hardy rule, which describes the multivalent counterion systems.

  20. Semigroups of Operators on Hardy Spaces and Cocycles of Flows

    Science.gov (United States)

    2008-07-01

    SEMIGROUPS OF OPERATORS ON HARDY SPACES AND COCYCLES OF FLOWS By Farhad Jafari Zbigniew Slodkowski and Thomas Tonev IMA Preprint Series # 2220 ( July...SUBTITLE Semigroups of Operators on Hardy Spaces and Cocycles of Flows 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S...PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18 SEMIGROUPS OF OPERATORS ON HARDY SPACES AND COCYCLES OF FLOWS FARHAD

  1. HARDY-SOBOLEV INEQUALITIES WITH GENERAL WEIGHTS AND REMAINDER TERMS

    Institute of Scientific and Technical Information of China (English)

    Chen Zhihui; Shen Yaotian

    2008-01-01

    The Hardy-Sobolev inequality with general weights is established, and it is shown that the constant is optimal. The two weights in this inequality are determined by a Bernoulli equation. In addition, the authors obtain the Hardy-Sobolev inequality with general weights and remainder terms. By choosing special weights, it turns to be many versions of the Hardy-Sobolev inequality and the Caffarelli-Kohn-Nirenberg inequality with remainder terms in the literature.

  2. HARDY SPACE AND BERGMAN SPACE ON THE OCTONIONS

    Institute of Scientific and Technical Information of China (English)

    Peng Lizhong; Zhao Jiman

    2000-01-01

    In this paper, square-integrable Octonion-valued function spaces on R3 and R7 are decomposed into the di rect sum of Octonion Hardy and conjugate Hardy spaces, and square-integrable Octonion function spaces on the upper half spaces R4+ and R8+ are decomposed into infinity direct sum of subspaees in which the first compo nents are just the Octonion Bergman spaces. The Octonion Hardy Spaces on R3 and R7 are characterized.

  3. Cosmic Ray physics with ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Iacovacci, M. [Dipartimento di Fisica dell' Università di Napoli ”Federico II” and INFN Napoli, Complesso Universitario MSA, Via Cintia, 80126 Napoli (Italy)

    2013-06-15

    The ARGO-YBJ experiment has been in stable data taking from November 2007 till February 2013 at the Yang-BaJing Cosmic Ray Laboratory (Tibet, P.R.China, 4300 m a.s.l.). It exploits the full coverage and the high altitude to detect air showers with an energy threshold as low as a few hundred GeV. The detector is made of a single layer of RPCs operated in streamer mode, fully instrumenting a central carpet of about 5800 m{sup 2}. A guard ring extends the partially instrumented area to about 11,000 m{sup 2}. The main results so far achieved on Cosmic Ray physics are reported.

  4. Argos: An Optimized Time-Series Photometer

    Indian Academy of Sciences (India)

    Anjum S. Mukadam; R. E. Nather

    2005-06-01

    We designed a prime focus CCD photometer, Argos, optimized for high speed time-series measurements of blue variables (Nather & Mukadam 2004) for the 2.1 m telescope at McDonald Observatory. Lack of any intervening optics between the primary mirror and the CCD makes the instrument highly efficient.We measure an improvement in sensitivity by a factor of nine over the 3-channel PMT photometers used on the same telescope and for the same exposure time. The CCD frame transfer operation triggered by GPS synchronized pulses serves as an electronic shutter for the photometer. This minimizes the dead time between exposures, but more importantly, allows a precise control of the start and duration of the exposure. We expect the uncertainty in our timing to be less than 100 s.

  5. Cosmic ray physics with ARGO-YBJ

    CERN Document Server

    ,

    2016-01-01

    The ARGO--YBJ experiment has been in stable data taking for more than five years at the Yangbajing cosmic ray observatory (Tibet, P.R. China, 4300 m a.s.l.). The detector collected about $5\\times10^{11}$ events in a wide energy range from few TeVs up to the PeV region. In this work we summarize the latest results in cosmic ray physics particularly focusing on the cosmic ray energy spectrum. The results of the measurement of the all-particle and proton plus helium energy spectra in the energy region between $10^{12} - 10^{16}$ eV are discussed. A precise measurement of the cosmic ray energy spectrum and composition in this energy region allows a better understanding of the origin of the knee and provides a powerful cross-check among different experimental techniques.

  6. Validation of salinity data from ARGO floats: Comparison between the older ARGO floats and that of later deployments

    Digital Repository Service at National Institute of Oceanography (India)

    Youn, Y.-H.; Lee, H.; Chang, Y.-S.; Pankajakshan, T.

    Continued observation of ARGO floats or years (about 4 years) makes the conductivity sensor more vulnerable to fouling by marine life and associated drift in salinity measurements. In this paper, we address this issue by making use of floats...

  7. Further Bounds for Hardy Type Differences

    Institute of Scientific and Technical Information of China (English)

    Kristina KRULI(C); Josip PE(C)ARI(C); Dora POKAZ

    2012-01-01

    In this paper we define a functional as a difference between the right-hand side and lefthand side of the refined Boas type inequality using the notation of superquadratic and subquadratic functions and study its properties,such as exponential and logarithmic convexity.We also,state and prove improvements and reverses of new weighted Boas type inequalities.As a special case of our result we obtain improvements and reverses of the Hardy inequality and its dual inequality.We introduce new Cauchy type mean and prove monotonicity property of this mean.

  8. Adult Attachment Style, Hardiness, and Mood

    Science.gov (United States)

    2014-04-01

    Separated 72 5.6 Divorced 76 5.9 Widowed 3 0.2 ADULT ATTACHMENT STYLE, HARDINESS, AND MOOD 131 D ow nl oa de d by [ Pa ul T . B ar to ne ] at 1 2: 35...Kobak, R. R., & Sceery, A. (1988). Attachment in late adolescence : Work- ing models, affect regulation, and representations of self and others. Child...Reassessing the dimensions of tem- peramental individuality across the lifespan: The revised dimensions of temperament survey (DOTS-R). Journal of Adolescent

  9. Hardy-Hilbert积分不等式的一类推广%On Generalization of a Kind of Hardy-Hibert's Integral Inequality

    Institute of Scientific and Technical Information of China (English)

    鲁圣洁; 陶祥兴

    2004-01-01

    讨论Hardy-Hilbert型积分不等式,把经典的Hardy-Hilbert积分不等式做了多方面的深化和推广,得到非对称核函数的Hardy-Hilbert型积分不等式和加权的Hardy-Hilbert型积分不等式.

  10. Orlicz-Hardy spaces associated with operators

    Institute of Scientific and Technical Information of China (English)

    JIANG RenJin; YANG DaChun; ZHOU Yuan

    2009-01-01

    Let L be a linear operator in L2(R2) and generate an analytic semigroup {e-tL}t≥0 with kernel satisfying an upper bound of Poisson type, whose decay is measured by θ(L) ∈ (0, ∞). Let ω on (0, ∞) be of upper type 1 and of critical lower type p0(ω) ∈ (n/(n + θ(L)), 1] and ρ(t) = t-1/ω-1(t-1) for t ∈ (0, ∞). We introduce the Orlicz-Hardy space Hω, L(Rn) and the BMO-type space BMOρ,L(Rn) and establish the John-Nirenberg inequality for BMOρ,L(Rn) functions and the duality relation between Hω,L(Rn) and BMOρ,L* (Rn), where L* denotes the adjoint operator of L in L2(Rn). Using this duality relation, we further obtain the ρ-Carleson measure characterization of BMOρ,L* (Rn) and the molecular characterization of Hω,L(Rn); the latter is used to establish the boundedness of the generalized fractional operator Lρ-γ from Hω,L(Rn) to HL1(Rn or Lq(Rn) with certain q > 1, whereHL1(Rn) is the Hardy space introduced by Auscher, Duong and McIntosh. These results generalize the existing results by taking ω(t) = tp for t ∈ (0, ∞) and p ∈ (n/(n + θ(L)),1].

  11. A statistical method for correcting salinity observations from autonomous profiling floats: An ARGO perspective

    Digital Repository Service at National Institute of Oceanography (India)

    Durand, F.; Reverdin, G.

    The Profiling Autonomous Lagrangian Circulation Explorer (PALACE) float is used to implement the Array for Real-Time Geostrophic Oceanography (ARGO). This study presents a statistical approach to correct salinity measurement errors of an ARGO...

  12. QUASILINEAR ELLIPTIC PROBLEMS WITH CRITICAL EXPONENT AND HARDY TERM

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    This paper is concerned with a p-Laplacian elliptic problem with critical Sobolev-Hardy exponent and Hardy term. By variational methods and genus theory, we guarantee that this problem has at least one positive solution and admits many solutions with negative energy under sufficient conditions.

  13. Some Weighted Hardy-Type Inequalities on Anisotropic Heisenberg Groups

    Directory of Open Access Journals (Sweden)

    Yang Qiao-Hua

    2011-01-01

    Full Text Available We prove some weighted Hardy type inequalities associated with a class of nonisotropic Greiner-type vector fields on anisotropic Heisenberg groups. As an application, we get some new Hardy type inequalities on anisotropic Heisenberg groups which generalize a result of Yongyang Jin and Yazhou Han.

  14. Hardy type inequalities in [Formula: see text] with sharp remainders.

    Science.gov (United States)

    Ioku, Norisuke; Ishiwata, Michinori; Ozawa, Tohru

    2017-01-01

    Sharp remainder terms are explicitly given on the standard Hardy inequalities in [Formula: see text] with [Formula: see text]. Those remainder terms provide a direct and exact understanding of Hardy type inequalities in the framework of equalities as well as of the nonexistence of nontrivial extremals.

  15. Pengaruh Hardiness terhadap Employee Engagement pada PNS Kementerian Pekerjaan Umum

    OpenAIRE

    Yessica

    2017-01-01

    131301101 Employee engagement merupakan keadaan positif yang muncul bersama terkait dengan pekerjaan yang berhubungan dengan kesejahteraan yang ditandai dengan vigour, dedication, dan absorption. Salah satu faktor untuk mempengaruhi employee engagement adalah kepribadian, hardiness. Hardiness terdiri dari commitment, control,dan challenge dinilai sebagai salah satu bentuk kepribadian yang baik saat menghadapi keadaan yang penuh tekanan atau sumber stres. Penelitian ini dilakukan untuk meli...

  16. Analyzing Exertion of Hardy's Tragic Effect in "Tess"

    Science.gov (United States)

    Yang, Wei

    2009-01-01

    This paper begins with a brief introduction to [Thomas] Hardy's whole life and his works, especially this novel "Tess [of the D'Urbervilles]" and points out the tragic effect's importance and Hardy's tragic idea. Linked to this tragic effect, this paper analyzes the nice application in "Tess." At last, we can understand more…

  17. Text-mining-assisted biocuration workflows in Argo

    Science.gov (United States)

    Rak, Rafal; Batista-Navarro, Riza Theresa; Rowley, Andrew; Carter, Jacob; Ananiadou, Sophia

    2014-01-01

    Biocuration activities have been broadly categorized into the selection of relevant documents, the annotation of biological concepts of interest and identification of interactions between the concepts. Text mining has been shown to have a potential to significantly reduce the effort of biocurators in all the three activities, and various semi-automatic methodologies have been integrated into curation pipelines to support them. We investigate the suitability of Argo, a workbench for building text-mining solutions with the use of a rich graphical user interface, for the process of biocuration. Central to Argo are customizable workflows that users compose by arranging available elementary analytics to form task-specific processing units. A built-in manual annotation editor is the single most used biocuration tool of the workbench, as it allows users to create annotations directly in text, as well as modify or delete annotations created by automatic processing components. Apart from syntactic and semantic analytics, the ever-growing library of components includes several data readers and consumers that support well-established as well as emerging data interchange formats such as XMI, RDF and BioC, which facilitate the interoperability of Argo with other platforms or resources. To validate the suitability of Argo for curation activities, we participated in the BioCreative IV challenge whose purpose was to evaluate Web-based systems addressing user-defined biocuration tasks. Argo proved to have the edge over other systems in terms of flexibility of defining biocuration tasks. As expected, the versatility of the workbench inevitably lengthened the time the curators spent on learning the system before taking on the task, which may have affected the usability of Argo. The participation in the challenge gave us an opportunity to gather valuable feedback and identify areas of improvement, some of which have already been introduced. Database URL: http://argo.nactem.ac.uk PMID

  18. Text-mining-assisted biocuration workflows in Argo.

    Science.gov (United States)

    Rak, Rafal; Batista-Navarro, Riza Theresa; Rowley, Andrew; Carter, Jacob; Ananiadou, Sophia

    2014-01-01

    Biocuration activities have been broadly categorized into the selection of relevant documents, the annotation of biological concepts of interest and identification of interactions between the concepts. Text mining has been shown to have a potential to significantly reduce the effort of biocurators in all the three activities, and various semi-automatic methodologies have been integrated into curation pipelines to support them. We investigate the suitability of Argo, a workbench for building text-mining solutions with the use of a rich graphical user interface, for the process of biocuration. Central to Argo are customizable workflows that users compose by arranging available elementary analytics to form task-specific processing units. A built-in manual annotation editor is the single most used biocuration tool of the workbench, as it allows users to create annotations directly in text, as well as modify or delete annotations created by automatic processing components. Apart from syntactic and semantic analytics, the ever-growing library of components includes several data readers and consumers that support well-established as well as emerging data interchange formats such as XMI, RDF and BioC, which facilitate the interoperability of Argo with other platforms or resources. To validate the suitability of Argo for curation activities, we participated in the BioCreative IV challenge whose purpose was to evaluate Web-based systems addressing user-defined biocuration tasks. Argo proved to have the edge over other systems in terms of flexibility of defining biocuration tasks. As expected, the versatility of the workbench inevitably lengthened the time the curators spent on learning the system before taking on the task, which may have affected the usability of Argo. The participation in the challenge gave us an opportunity to gather valuable feedback and identify areas of improvement, some of which have already been introduced. Database URL: http://argo.nactem.ac.uk.

  19. Weak martingale Hardy spaces and weak atomic decompositions

    Institute of Scientific and Technical Information of China (English)

    HOU; Youliang; REN; Yanbo

    2006-01-01

    In this paper we define some weak martingale Hardy spaces and three kinds of weak atoms. They are the counterparts of martingale Hardy spaces and atoms in the classical martingale Hp-theory. And then three atomic decomposition theorems for martingales in weak martingale Hardy spaces are proved. With the help of the weak atomic decompositions of martingale, a sufficient condition for a sublinear operator defined on the weak martingale Hardy spaces to be bounded is given. Using the sufficient condition, we obtain a series of martingale inequalities with respect to the weak Lp-norm, the inequalities of weak (p ,p)-type and some continuous imbedding relationships between various weak martingale Hardy spaces. These inequalities are the weak versions of the basic inequalities in the classical martingale Hp-theory.

  20. Sky monitoring with ARGO-YBJ

    CERN Document Server

    Vernetto, S; Zhang, J L

    2009-01-01

    A sky monitoring at gamma ray energy E > 0.6 TeV has been performed by the full coverage Extensive Air Shower detector ARGO-YBJ, located in Tibet at 4300 m of altitude. We monitored 135 galactic and extragalactic gamma ray sources in the sky declination band from -10 to +70 degrees for 424 days, detecting the Crab Nebula and Mrk421 with a significance respectively of 7.0 and 8.0 standard deviations. For a set of 11 AGNs known to emit in the TeV energy range, the search has been performed in time scales of 1, 10 and 30 days in order to study possible flaring activities. Significant emissions has been observed from Mrk421 in the time scales of 10 and 30 days, during June and March 2008, when the source had a strong activity also observed in the X-rays waveband. The analysis of the background has revealed the existence of a significant excess of the CR flux in two localized regions of angular size 10-30 degrees, in agreement with previous indications.

  1. ARGO-YBJ data acquisition system

    Energy Technology Data Exchange (ETDEWEB)

    Aloisio, A. [Dipartimento di Fisica, Universita ' Federico II' and INFN, Naples (Italy); Branchini, P. [Dipartimento di Fisica, Universita Roma Tre and INFN, Rome (Italy); Budano, A. [Dipartimento di Fisica, Universita Roma Tre and INFN, Rome (Italy); Catalanotti, S. [Dipartimento di Fisica, Universita ' Federico II' and INFN, Naples (Italy); Creti, P. [Dipartimento di Ingegneria, Universita degli Studi di Lecce and INFN, Lecce (Italy); Galeazzi, F. [Dipartimento di Fisica, Universita Roma Tre and INFN, Rome (Italy); Marsella, G. [Dipartimento di Ingegneria, Universita degli Studi di Lecce and INFN, Lecce (Italy); Mastroianni, S. [Dipartimento di Fisica, Universita ' Federico II' and INFN, Naples (Italy)]. E-mail: Stefano.Mastroianni@na.infn.it; Ruggieri, F. [Dipartimento di Fisica, Universita Roma Tre and INFN, Rome (Italy); Stanescu, C. [Dipartimento di Fisica, Universita Roma Tre and INFN, Rome (Italy)

    2006-12-01

    The ARGO-YBJ experiment is reaching its final design configuration. An array of single layer Resistive Plate Counters (RPCs) covering an area of {approx}5800m{sup 2} will collect a huge amount of data. The throughput required from the final detector strongly depends on the trigger rate. The DAQ system must be able to sustain a data transfer rate estimated to be the order of 15MB/s and a high peak of data flow. Data are read out using a typical front-end acquisition chain built around a custom bus. Specialized electronics have been designed and efficient software had to be written to perform this task. Data are then sent to the on-line farm through a switch exploiting gigabit-ethernet protocol. In this paper we will describe the design of the DAQ system, the software which deals with data collection and network sending and the performances. The architecture of the on-line farm is also described together with the monitoring system.

  2. Diffraction limited operation with ARGOS: a hybrid AO system

    Science.gov (United States)

    Bonaglia, M.; Busoni, L.; Quirós-Pacheco, F.; Esposito, S.

    2010-07-01

    ARGOS, the Laser Guide Star (LGS) facility of the Large Binocular Telescope (LBT), implements a Ground Layer Adaptive Optics (GLAO) system, using 3 low-altitude beacons, to improve the resolution over the 4'×4' FoV of the imager and Multi Object Spectrograph (MOS) LUCIFER. In this paper we discuss the performance and the reconstruction scheme of an hybrid AO system using the ARGOS Rayleigh beacons complemented with a single faint high-altitude star (NGS or sodium beacon) to sense the turbulence of the upper atmosphere allowing an high degree of on-axis correction. With the ARGOS system, the NGS-upgrade can be immediately implemented at LBT using the already existing Pyramid WFS offering performance similar to the NGS AO system with the advantage of a larger sky coverage.

  3. The Trigger System of the ARGO-YBJ detector

    CERN Document Server

    Mastroianni, S; Catalanotti, S; Cavaliere, S; Bernardini, P; Creti, P; De Mitri, I; Marsella, G; Panareo, M; Surdo, A

    2003-01-01

    The ARGO-YBJ experiment has been designed to detect air shower events over a large size scale and with an energy threshold of a few hundreds GeV. The building blocks of the ARGO-YBJ detector are single-gap Resistive Plate Counters (RPCs). The trigger logic selects the events on the basis of their hit multiplicity. Inclusive triggers as well as dedicated triggers for specific physics channels or calibration purposes have been developed. This paper describes the architecture and the main features of the trigger system.

  4. Rearrangement invariant optimal range for Hardy type operators

    OpenAIRE

    Soria, Javier; Tradacete, Pedro

    2013-01-01

    We characterize, in the context of rearrangement invariant spaces, the optimal range space for a class of monotone operators related to the Hardy operator. The connection between optimal range and optimal domain for these operators is carefully analyzed.

  5. development of hardy sorghum cultivars for the arid and

    African Journals Online (AJOL)

    DEVELOPMENT OF HARDY SORGHUM CULTIVARS FOR THE ARID AND. SEMI ARID REGIONS .... media and presence or absence ofin vitro selective agents (Amzallag et ...... diversity in India Mustard (Brassica Juncea) and its relationship ...

  6. An improved Hardy type inequality on Heisenberg group

    Directory of Open Access Journals (Sweden)

    Xiao Ying-Xiong

    2011-01-01

    Full Text Available Abstract Motivated by the work of Ghoussoub and Moradifam, we prove some improved Hardy inequalities on the Heisenberg group ℍ n via Bessel function. Mathematics Subject Classification (2000: Primary 26D10

  7. Salt Lake City's peeti IUFRO maailmakongressi / Hardi Tullus

    Index Scriptorium Estoniae

    Tullus, Hardi, 1956-

    2014-01-01

    Kongress toimus 6.-11. oktoobrini 2014. Eestit esindasid viis metsateadlast: Hardi Tullus, Tea Tullus ja Reimo Lutter maaülikoolist, Tartu Ülikooli vanemteadur Arvo Tullus ning keskkonnaagentuuri metsaseire osakonnajuhataja Kalle Karoles

  8. Salt Lake City's peeti IUFRO maailmakongressi / Hardi Tullus

    Index Scriptorium Estoniae

    Tullus, Hardi, 1956-

    2014-01-01

    Kongress toimus 6.-11. oktoobrini 2014. Eestit esindasid viis metsateadlast: Hardi Tullus, Tea Tullus ja Reimo Lutter maaülikoolist, Tartu Ülikooli vanemteadur Arvo Tullus ning keskkonnaagentuuri metsaseire osakonnajuhataja Kalle Karoles

  9. HEAT KERNEL AND HARDY'S THEOREM FOR JACOBI TRANSFORM

    Institute of Scientific and Technical Information of China (English)

    T. KAWAZOE; LIU JIANMING(刘建明)

    2003-01-01

    In this paper, the authors obtain sharp upper and lower bounds for the heat kernel associatedwith Jacobi transform, and get some analogues of Hardy's Theorem for Jacobi transform byusing the sharp estimate of the heat kernel.

  10. Convergence of Composition Operators on Hardy-Smirnov Space

    Institute of Scientific and Technical Information of China (English)

    Xiang Dong YANG

    2011-01-01

    We consider the convergence of composition operators on Hardy-Smirnov space over a simply connected domain properly contained in the complex plane.The convergence of the power of a composition operator is also considered.Our approach is a method from Joel H.Shapiro and Wayne Smith's celebrated work (Journal of Functional Analysis 205 (2003) 62-89).The resulting space is usually not the one obtained from the classical Hardy space of the unit disc by conformal mapping.

  11. The Relationship between Coping Styles and Hardiness among Students

    Directory of Open Access Journals (Sweden)

    Akram Dehghani

    2013-09-01

    Full Text Available Introduction: Hardiness is a personality characteristic which facilitates effective coping with stress and prevents from mental and physical problems. The aim of this study was to determine the effect of hardiness trait on the use of coping styles. Methods: The population of the study included students at Payam-noor University of Golpaygan. Using a cluster sampling procedure, 8 humanities classes and 8 basic sciences classes were selected and 280 students from these classes participated in the study. The participants completed Ahvaz Hardiness Inventory and Young People Coping Style Scale. The data were analyzed through t-test, ANOVA and stepwise regression analysis. Results: The results showed no difference between boys and girls and humanities and basic sciences students in terms of the level of hardiness. Results of F test showed no significant difference between three coping styles in groups of basic sciences and humanities, but in refer- to – others strategy and non-efficient coping style, women had a higher average than men. A significant relationship was observed between hardiness and the problem-solving and refer to others coping strategies (P<0.001. Results of stepwise regression analysis showed that coping styles of problem solving and non-efficient coping predicted respectively 44 and 47 percent of the variance in hardiness. In other words, the relationship between hardiness and coping styles is influenced only by coping style of problem-solving and non-efficient coping strategies. Conclusion: The results of the research suggest that hardiness creates the inner attitude that will affect confronting of people with life problems and makes people to view mental stress realistically and open-mindedly. In this regard, developing educational and remedial programs at universities can be very helpful.

  12. Position-momentum local realism violation of the Hardy type

    CERN Document Server

    Yurke, B; Stoler, D; Yurke, Bernard; Hillery, Mark; Stoler, David

    1999-01-01

    We show that it is, in principle, possible to perform local realism violating experiments of the Hardy type in which only position and momentum measurements are made on two particles emanating from a common source. In the optical domain, homodyne detection of the in-phase and out-of-phase amplitude components of an electromagnetic field is analogous to position and momentum measurement. Hence, local realism violations of the Hardy type are possible in optical systems employing only homodyne detection.

  13. Phychological Hardiness, Workplase Stress and Related Stress Reduction Strategies

    OpenAIRE

    Lambert, Vickie A.; Lambert Jr., Clinton E.; Yamase, Hiroaki

    2002-01-01

    Contending with stressful situations in the workplace is a common occurrence for all health care providers. Stress has numerous devastating effects on the workplace environment, as well as upon individuals who become victims of stress. However, enhancing psychological hardiness may facilitate an individual's ability to deal with work place stress. Psychological hardiness, a personality style consisting of commitment, control and challenge, encourages human survival and the enrichment of life...

  14. Bilinear Pseudo-differential Operators on Local Hardy Spaces

    Institute of Scientific and Technical Information of China (English)

    Jiang Wei XIAO; Yin Sheng JIANG; Wen Hua GAO

    2012-01-01

    In this paper,the authors consider a class of bilinear pseudo-differential operators with symbols of order 0 and type (1,0) in the sense of H(o)rmander and use the atomic decompositions of local Hardy spaces to establish the boundedness of the bilinear pseudo-differential operators and the bilinear singular integral operators on the product of local Hardy spaces.

  15. Cold hardiness research on agricultural and horticultural crops in Finland

    Directory of Open Access Journals (Sweden)

    L. LINDÉN

    2008-12-01

    Full Text Available This paper represents an overview of cold hardiness research conducted on agricultural and horticultural crops, as well as on amenity plants in Finland. Inadequate freezing tolerance and/or winter hardiness often prevents introduction of new species and cultivars to Finland. Field observations on winter hardiness and more recently the results from laboratory freezing tests, have assisted breeders to select hardy genotypes. Research approaches for agricultural crops have evolved from observations on winter and frost damage to studies on molecular mechanisms of cold acclimation and freezing injury. The results of experiments on survival of winter cereals, grasses and clovers and frost tolerance of potato and turnip rape are discussed. The studies conducted on horticultural crops, including apple, strawberry, raspberry, currants, blueberry, sea buckthorn, perennial herbs as well as on ornamental trees and shrubs have included field evaluations of cultivars, or selections for winter hardiness, and studies on the effects of cultural management practices on winter survival. During the last decade detailed studies including controlled freezing tests have provided tools to assist in explanation of the underlying mechanisms of cold hardiness also in horticultural plants. ;

  16. Validation of argo data in the Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Pankajakshan, T.; Muraleedharan, P.M.; Gopalakrishna, V.V.; Reddy, G.V.; Ratnakaran, L.; Revichandran, C.; Murty, V.S.N.

    -6538 versión on-line Gayana (Concepc.) v.68 n.2 supl.TIIProc Concepción 2004 Como citar este artículo Gayana 68(2): 456-458, 2004 VALIDATION OF ARGO DATA IN THE INDIAN OCEAN Pankajakshan Thadathil, P.M. Muraleedharan, V...

  17. Exact tests for Hardy-Weinberg proportions.

    Science.gov (United States)

    Engels, William R

    2009-12-01

    Exact conditional tests are often required to evaluate statistically whether a sample of diploids comes from a population with Hardy-Weinberg proportions or to confirm the accuracy of genotype assignments. This requirement is especially common when the sample includes multiple alleles and sparse data, thus rendering asymptotic methods, such as the common chi(2)-test, unreliable. Such an exact test can be performed using the likelihood ratio as its test statistic rather than the more commonly used probability test. Conceptual advantages in using the likelihood ratio are discussed. A substantially improved algorithm is described to permit the performance of a full-enumeration exact test on sample sizes that are too large for previous methods. An improved Monte Carlo algorithm is also proposed for samples that preclude full enumeration. These algorithms are about two orders of magnitude faster than those currently in use. Finally, methods are derived to compute the number of possible samples with a given set of allele counts, a useful quantity for evaluating the feasibility of the full enumeration procedure. Software implementing these methods, ExactoHW, is provided.

  18. Divergence-free Hardy space on

    Institute of Scientific and Technical Information of China (English)

    LOU; Zengjian

    2004-01-01

    [1]Gilbert, J. E., Hogan, J. A., Lakey, J. D., Atomic decomposition of divergence-free Hardy spaces, Mathematica Moraviza, 1997, Special Volume, Proc. IWAA: 33-52.[2]Chang, D. C., Krantz, S. G., Stein, E. M., HP theory on a smooth domain in RN and elliptic boundary value problems, J. Funct. Anal., 1993, 114: 286-347.[3]Schwarz, G., Hodge Decomposition-A method for solving boundary value problems, Lecture Notes in Mathematics, Vol. 1607, Berlin Heidelberg: Springer-Verlag, 1995.[4]Girault, V., Raviart, P. A., Finite Element Methods for Navier-Stokes Equations, Theory and Algorithms, Berlin Heidelberg: Springer-Verlag, 1986.[5]Stein, E. M., Singular Integrals and Differentiability Properties of Functions, Princeton: Princeton Univ. Press,1970.[6]Davies, B., Heat Kernels and Spectral Theory, Cambridge: Cambridge University Press, 1989.[7]Geymonat, G., Miller, S., Triantafylidis, N., Homogenization of nonlinear elastic materials, microscopic bifurcation and microscopic loss of rank-one convexity, Arch. Rational Mech. Anal., 1993, 122: 231-290.[8]Ball, J., Convexity conditions and existence theorems in nonlinear elasticity, Arch. Rational Mech. Anal., 1977,63: 337-403.[9]Zhang, K., On the coercivity of elliptic systems in two dimensional spaces, Bull. Austral. Math. Soc., 1996, 54:423-430.

  19. Maize and Arabidopsis ARGOS Proteins Interact with Ethylene Receptor Signaling Complex, Supporting a Regulatory Role for ARGOS in Ethylene Signal Transduction[OPEN

    Science.gov (United States)

    Shi, Jinrui; Wang, Hongyu; Habben, Jeffrey E.

    2016-01-01

    The phytohormone ethylene regulates plant growth and development as well as plant response to environmental cues. ARGOS genes reduce plant sensitivity to ethylene when overexpressed in transgenic Arabidopsis (Arabidopsis thaliana) and maize (Zea mays). A previous genetic study suggested that the endoplasmic reticulum and Golgi-localized maize ARGOS1 targets the ethylene signal transduction components at or upstream of CONSTITUTIVE TRIPLE RESPONSE1, but the mechanism of ARGOS modulating ethylene signaling is unknown. Here, we demonstrate in Arabidopsis that ZmARGOS1, as well as the Arabidopsis ARGOS homolog ORGAN SIZE RELATED1, physically interacts with Arabidopsis REVERSION-TO-ETHYLENE SENSITIVITY1 (RTE1), an ethylene receptor interacting protein that regulates the activity of ETHYLENE RESPONSE1. The protein-protein interaction was also detected with the yeast split-ubiquitin two-hybrid system. Using the same yeast assay, we found that maize RTE1 homolog REVERSION-TO-ETHYLENE SENSITIVITY1 LIKE4 (ZmRTL4) and ZmRTL2 also interact with maize and Arabidopsis ARGOS proteins. Like AtRTE1 in Arabidopsis, ZmRTL4 and ZmRTL2 reduce ethylene responses when overexpressed in maize, indicating a similar mechanism for ARGOS regulating ethylene signaling in maize. A polypeptide fragment derived from ZmARGOS8, consisting of a Pro-rich motif flanked by two transmembrane helices that are conserved among members of the ARGOS family, can interact with AtRTE1 and maize RTL proteins in Arabidopsis. The conserved domain is necessary and sufficient to reduce ethylene sensitivity in Arabidopsis and maize. Overall, these results suggest a physical association between ARGOS and the ethylene receptor signaling complex via AtRTE1 and maize RTL proteins, supporting a role for ARGOS in regulating ethylene perception and the early steps of signal transduction in Arabidopsis and maize. PMID:27268962

  20. Poletsky-Stessin Hardy Spaces on the Unit Disk

    Science.gov (United States)

    Shrestha, K. R.

    The holomorphic functions on the unit disk D in the complex plane C have a remarkable property: to know the values of a holomorphic function on D it suffices to know only its values on the unit circle T. However not all holomorphic functions on D are defined on T and the major problem of establishing such values (called boundary values) led to the appearance of Hardy spaces Hp(D), p ≥ 1. If a function lies in a Hardy space then its boundary values can be defined and its values on D can be obtained using standard Cauchy or Poisson formulas. The theory of Hardy spaces Hp( D) was well developed in the last century and the spaces became the fundamental ground for complex analysis. To create analogous spaces in higher dimensions Poletsky and Stessin introduced new spaces on hyperconvex domains in Cn in 20. We call these spaces the Poletsky-Stessin Hardy spaces. Poletsky and Stessin used them to study composition operators but did not look at their detailed properties. In this thesis we fill this gap studying Poletsky-Stessin Hardy spaces on the unit disk D. As in 20 for their definition we use subharmonic exhaustion functions u and denote these spaces by H( p/u)(D). It was mentioned in 20 that the classical Hardy spaces form a subclass of Poletsky-Stessin Hardy spaces. Our work begins with producing an example that shows that there are subharmonic exhaustion functions u on D for which the Poletsky-Stessin Hardy spaces H( p/u)(D) are different from classical Hardy spaces Hp(D). Thus we have an abundance of new function spaces to be explored. We show that the theory of boundary values for functions in Poletsky-Stessin Hardy spaces is analogous to the classical theory of Hardy spaces and the most of the classical properties stay true for these new spaces. Since by 20 the space H(p/u)(D) lies in H p(D) we can use the classical boundary values for functions in H(p/u)(D). This allows us to redefine Poletsky-Stessin Hardy spaces as spaces whose boundary values belong to

  1. 多重的非对称核Hardy-Hilbert积分不等式%Multiple Unsymmetrical Core Hardy-Hilbert's Integral Inequalities

    Institute of Scientific and Technical Information of China (English)

    鲁圣洁; 陶祥兴

    2009-01-01

    该文对Hardy-Hilbert积分不等式进行推广,建立具有最佳常数因子的非对称核Hardy-Hilbert型积分不等式和加权的Hardy-Hilbert型积分不等式,并考虑它们的一些特殊情况.

  2. Relationship between nurses’ spiritual intelligence with hardiness and general health

    Directory of Open Access Journals (Sweden)

    Fatemeh Akbarizadeh

    2012-01-01

    Full Text Available Background: Nursing is one of the stressful jobs that affect nurse's general health. The aim of this study was assessment relationship between Spiritual intelligence, Hardiness and General health among nurses in the hospital of Bushehr in 1388. Methods: Cross- sectional study designed and 125 nurses who have been working in different wards of the hospital enrolled in the study. Data was collected using Spiritual intelligence, Hardiness, General health and characteristics demographic questionnaires. Correlation, t-test, ANOVA, Tukey and regression analysis was applied using SPSS-16 soft ware. Results: The results showed there was significant relationship between spiritual intelligence and hardiness (P<0.005, spiritual intelligence and General health (P<0.005, hardiness and General health (P<0.001. Among the demographic characteristics including age, gender, working section, marital status, job experiences, and education only working section showed significantly correlated with patience (P<0.005. Conclusion: Improvement of spiritual intelligence and reinforcement of hardiness could help to increase the general health of nurses.

  3. Scaler Mode Technique for the ARGO-YBJ Detector

    CERN Document Server

    Aielli, G

    2008-01-01

    The ARGO-YBJ experiment has been designed to study the Extensive Air Showers with an energy threshold lower than that of the existing arrays by exploiting the high altitude location(4300 m a.s.l. in Tibet, P.R. China) and the full ground plane coverage. The lower energy limit of the detector (E $\\sim$ 1 GeV) is reached by the scaler mode technique, i.e. recording the counting rate at fixed time intervals. At these energies, transient signals due to local (e.g. Forbush Decreases) and cosmological (e.g. Gamma Ray Bursts) phenomena are expected as a significant variation of the counting rate compared to the background. In this paper the performance of the ARGO-YBJ detector operating in scaler mode is described and discussed.

  4. Local orthogonality provides a tight upper bound for Hardy's nonlocality

    Science.gov (United States)

    Das, Subhadipa; Banik, Manik; Gazi, Md. Rajjak; Rai, Ashutosh; Kunkri, Samir

    2013-12-01

    The amount of nonlocality in quantum theory is limited compared to that allowed in generalized no-signaling theory [S. Popescu and D. Rohrlich, Found. Phys.FNDPA40015-901810.1007/BF02058098 24, 379 (1994)]. This feature, for example, gets manifested in the amount of Bell inequality violation as well as in the degree of success probability of Hardy's (Cabello's) nonlocality argument. Physical principles like information causality and macroscopic locality have been proposed for analyzing restricted nonlocality in quantum mechanics, viz. explaining the Cirel'son bound. However, these principles are not very successful in explaining the maximum success probability of Hardy's as well as Cabello's argument in quantum theory. Here we show that a recently proposed physical principle, namely local orthogonality, does better by providing a tighter upper bound on the success probability for Hardy's nonlocality. This bound is relatively closer to the corresponding quantum value compared to the bounds achieved from other principles.

  5. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2004-11-14 for the Global Argo Data Repository, date ranged from 2003-01-29 to 2004-11-20 (NODC Accession 0001906)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo project...

  6. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of October 2003 for the Global Argo Data Repository, 1996-01-05 to 2003-10-31 (NODC Accession 0001217)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  7. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-10-26 for the Global Argo Data Repository, date ranged from 2003-03-12 to 2003-11-01 (NODC Accession 0001216)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  8. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-07-22 for the Global Argo Data Repository, date ranged from 2002-05-16 to 2007-07-28 (NODC Accession 0031203)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  9. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-12-24 for the Global Argo Data Repository, date ranged from 2004-02-23 to 2006-12-30 (NODC Accession 0012522)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  10. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-04-08 for the Global Argo Data Repository, date ranged from 2002-08-20 to 2010-04-14 (NODC Accession 0063066)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  11. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2004-05-02 for the Global Argo Data Repository, date ranged from 2000-11-22 to 2004-05-08 (NODC Accession 0001453)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  12. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-03-25 for the Global Argo Data Repository, date ranged from 2001-07-30 to 2010-03-30 (NODC Accession 0062945)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  13. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-04-27 for the Global Argo Data Repository, date ranged from 2002-12-22 to 2003-05-03 (NODC Accession 0001008)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  14. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2005-01-09 for the Global Argo Data Repository, 2000-03-01 to 2005-01-15 (NODC Accession 0001981)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  15. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-05-06 for the Global Argo Data Repository, date ranged from 2001-01-21 to 2010-05-12 (NODC Accession 0064275)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository(GADR as the long-term archive for the International Global Argo Project...

  16. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-12-31 for the Global Argo Data Repository, date ranged from 2006-03-28 to 2010-01-06 (NODC Accession 0061041)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  17. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-12-03 for the Global Argo Data Repository, date ranged from 2001-10-31 to 2009-12-09 (NODC Accession 0060151)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  18. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-03-11 for the Global Argo Data Repository, date ranged from 1999-10-21 to 2010-03-17 (NODC Accession 0062738)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  19. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-05-13 for the Global Argo Data Repository, date ranged from 2002-12-02 to 2007-05-19 (NODC Accession 0015775)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  20. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-02-11 for the Global Argo Data Repository, date ranged from 2002-10-29 to 2007-02-17 (NODC Accession 0013200)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  1. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of June 2004 for the Global Argo Data Repository, 1996-01-05 to 2004-06-30 (NODC Accession 0001516)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  2. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-03-26 for the Global Argo Data Repository, date ranged from 1998-03-10 to 2006-04-01 (NODC Accession 0002621)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  3. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-06-17 for the Global Argo Data Repository, date ranged from 2002-01-02 to 2010-06-23 (NODC Accession 0065273)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository(GADR as the long-term archive for the International Global Argo Project...

  4. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-08-10 for the Global Argo Data Repository, date ranged from 2001-01-18 to 2003-08-16 (NODC Accession 0001138)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  5. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-03-18 for the Global Argo Data Repository, date ranged from 2001-08-26 to 2010-03-24 (NODC Accession 0062812)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  6. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-09-02 for the Global Argo Data Repository, date ranged from 2001-05-24 to 2010-09-07 (NODC Accession 0067578)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository(GADR as the long-term archive for the International Global Argo Project...

  7. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of December 2006 for the Global Argo Data Repository, 1996-01-05 to 2006-12-31 (NODC Accession 0012523)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  8. Temperature and Salinity profile data from globally distributed Argo profiling floats for the week of 2008-07-10 for the Global Argo Data Repository, date ranged from 2007-12-18 to 2008-07-17 (NODC Accession 0043460)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  9. Temperature and salinity profile data from globally distributed Argo profiling for the week of 2008-03-02 for the Global Argo Data Repository, date ranged from 2002-03-30 to 2008-03-11 (NODC Accession 0039531)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  10. Temperature and Salinity profile data from globally distributed Argo profiling floats for the week of 2008-06-05 for the Global Argo Data Repository, date ranged from 2006-10-08 to 2008-06-11 (NODC Accession 0042829)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  11. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-03-12 for the Global Argo Data Repository, date ranged from 1998-12-08 to 2009-03-18 (NODC Accession 0002061)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  12. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2004-01-25 for the Global Argo Data Repository, date ranged from 2004-01-05 to 2004-01-31 (NODC Accession 0001358)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  13. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-06-10 for the Global Argo Data Repository, date ranged from 2004-06-08 to 2010-06-16 (NODC Accession 0065228)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository(GADR as the long-term archive for the International Global Argo Project...

  14. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-04-30 for the Global Argo Data Repository, date ranged from 2002-03-08 to 2006-05-06 (NODC Accession 0002664)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo...

  15. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-11-11 for the Global Argo Data Repository, date ranged from 2002-01-11 to 2007-11-17 (NODC Accession 0036655)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  16. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-02-18 for the Global Argo Data Repository, date ranged from 2001-09-30 to 2010-02-24 (NODC Accession 0062336)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  17. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-11-26 for the Global Argo Data Repository, date ranged from 2001-12-21 to 2009-12-02 (NODC Accession 0059941)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  18. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of October 2007 for the Global Argo Data Repository, 1995-09-07 to 2007-10-31 (NODC Accession 0036822)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  19. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-05-28 for the Global Argo Data Repository, date ranged from 2002-02-05 to 2009-06-02 (NODC Accession 0054265)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  20. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of May 2005 for the Global Argo Data Repository, 1996-01-05 to 2005-05-31 (NODC Accession 0002210)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  1. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of June 2007 for the Global Argo Data Repository, 1996-01-05 to 2007-07-01 (NODC Accession 0020937)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  2. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2010-02-25 for the Global Argo Data Repository, date ranged from 2002-08-06 to 2010-03-03 (NODC Accession 0062541)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  3. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-12-24 for the Global Argo Data Repository, date ranged from 2002-02-15 to 2009-12-30 (NODC Accession 0060860)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  4. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2008-02-10 for the Global Argo Data Repository, date ranged from 2002-06-21 to 2008-02-16 (NODC Accession 0038996)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  5. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-02-26 for the Global Argo Data Repository, date ranged from 2001-12-12 to 2006-03-04 (NODC Accession 0002591)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  6. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2004-11-28 for the Global Argo Data Repository, date ranged from 2000-10-30 to 2004-12-04 (NODC Accession 0001927)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  7. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-07-15 for the Global Argo Data Repository, date ranged from 2000-01-05 to 2007-07-21 (NODC Accession 0029221)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  8. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-09-10 for the Global Argo Data Repository, date ranged from 2000-07-15 to 2006-09-16 (NODC Accession 0005979)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  9. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2005-01-23 for the Global Argo Data Repository, 2002-12-03 to 2005-01-29 (NODC Accession 0002001)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  10. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2009-11-05 for the Global Argo Data Repository, date ranged from 1999-10-25 to 2009-11-11 (NODC Accession 0059419)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  11. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-03-18 for the Global Argo Data Repository, date ranged from 2004-01-28 to 2007-03-24 (NODC Accession 0014265)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  12. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-06-24 for the Global Argo Data Repository, date ranged from 2001-11-22 to 2007-06-30 (NODC Accession 0020914)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  13. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2005-05-08 for the Global Argo Data Repository, date ranged from 1998-06-16 to 2005-07-09 (NODC Accession 0002272)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  14. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of January 2005 for the Global Argo Data Repository, 1996-01-05 to 2005-01-31 (NODC Accession 0002005)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  15. Temperature and Salinity profile data from globally distributed Argo profiling floats for the week of 2008-07-03 for the Global Argo Data Repository, date ranged from 2002-08-02 to 2008-07-09 (NODC Accession 0043301)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR)as the long-term archive for the International Global Argo Project...

  16. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2005-07-10 for the Global Argo Data Repository, date ranged from 1999-10-22 to 2005-07-17 (NODC Accession 0002281)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  17. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-05-04 for the Global Argo Data Repository, date ranged from 2003-04-03 to 2003-05-10 (NODC Accession 0001020)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  18. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-04-20 for the Global Argo Data Repository, date ranged from 2003-03-10 to 2003-04-26 (NODC Accession 0001001)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  19. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of July 2007 for the Global Argo Data Repository, 1996-01-05 to 2007-07-31 (NODC Accession 0031247)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  20. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of November 2007 for the Global Argo Data Repository, 1995-09-07 to 2007-11-30 (NODC Accession 0037492)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  1. Temperature and salinity profile data from globally distributed Argo profiling floats for the month of March 2004 for the Global Argo Data Repository, 1996-01-05 to 2004-03-31 (NODC Accession 0001413)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  2. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2006-08-20 for the Global Argo Data Repository, date ranged from 2004-03-05 to 2006-08-26 (NODC Accession 0002810)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  3. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-06-01 for the Global Argo Data Repository, date ranged from 2001-10-18 to 2003-06-07 (NODC Accession 0001051)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  4. Temperature and Salinity profile data from globally distributed Argo profiling floats for the week of 2008-11-27 for the Global Argo Data Repository, date ranged from 2000-06-01 to 2008-12-03 (NODC Accession 0049080)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo...

  5. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-05-06 for the Global Argo Data Repository, date ranged from 2002-12-02 to 2007-05-12 (NODC Accession 0015504)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  6. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-04-08 for the Global Argo Data Repository, date ranged from 2005-02-25 to 2007-04-14 (NODC Accession 0014769)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  7. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-04-06 for the Global Argo Data Repository, date ranged from 2002-01-02 to 2003-04-12 (NODC Accession 0000994)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  8. Temperature and Salinity profile data from globally distributed Argo profiling floats for the week of 2008-11-20 for the Global Argo Data Repository, date ranged from 2000-02-01 to 2008-11-26 (NODC Accession 0048970)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR as the long-term archive for the International Global Argo Project...

  9. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2007-03-11 for the Global Argo Data Repository, date ranged from 2000-06-03 to 2007-03-17 (NODC Accession 0014118)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  10. Temperature and salinity profile data from globally distributed Argo profiling floats for the week of 2003-05-11 for the Global Argo Data Repository, date ranged from 2003-04-26 to 2003-05-17 (NODC Accession 0001030)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. National Oceanographic Data Center (NODC) operates the Global Argo Data Repository (GADR) as the long-term archive for the International Global Argo Project...

  11. Gamma-Ray Astronomy with ARGO-YBJ

    CERN Document Server

    Di Sciascio, G

    2011-01-01

    ARGO-YBJ is a full coverage air shower array located at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm^2) recording data with a duty cycle $\\geq$85% and an energy threshold of a few hundred GeV. In this paper the latest results in Gamma-Ray Astronomy are summarized.

  12. Physics Results from the Argo-YBJ Experiment

    CERN Document Server

    Di Sciascio, G

    2008-01-01

    The ARGO-YBJ experiment has been in stable data taking since November 2007 at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300 m a.s.l.). In this paper we report a few selected results in Gamma-Ray Astronomy (Crab Nebula and Mrk421 observations, search for high energy tails of GRBs) and Cosmic Ray Physics (Moon and Sun shadow observations, proton-air cross section and antiproton/proton preliminary measurements).

  13. The Relationship Between Approach-Avoidance Behaviors and Hardiness

    Directory of Open Access Journals (Sweden)

    Ahmad Ali-Poor

    2012-10-01

    Full Text Available Background: Hardiness as a personality trait is an important factor in directing people to success. An explanation for this trait is the psychobiological explanation including the Gray’s theory of Brian/behavioral systems. This study has examined the relationship between the Brian/behavioral systems and hardiness in successful people.Materials and Methods: In this study, 60 successful students (medical students in their final two years of medical school and 60 ordinary subjects were studied using two personality questionnaires (Gary-Wilson and Hardiness Questionnaires as well as Pearson’s correlation statistical technique, regression, and independent t-test.Results: Data analysis showed that the activity level of behavioral activation system (p=0.002: active avoidance and p> 0.001: approach behavior and hardiness (p>0.001 is significantly higher in successful people than ordinary subjects and that there is a significant relationship between hardiness and two components of behavioral activation system and one component of behavioral inhibition system (i.e. active avoidance (p>0.01. Conclusion: According to the findings, only two components of approach behavior and active avoidance can predict the variable hardiness. However, these two components are considered as only one of the predictors of success and there are undoubtedly many other factors involved in this regard. Overall, this study can lead to the identification of new factors involved in the success occurrence that consideration of them can help understanding the individual differences in order to perform effective psychological interventions to improve the level of effort and success in people.

  14. SPHERE: SPherical Harmonic Elastic REgistration of HARDI data.

    Science.gov (United States)

    Yap, Pew-Thian; Chen, Yasheng; An, Hongyu; Yang, Yang; Gilmore, John H; Lin, Weili; Shen, Dinggang

    2011-03-15

    In contrast to the more common Diffusion Tensor Imaging (DTI), High Angular Resolution Diffusion Imaging (HARDI) allows superior delineation of angular microstructures of brain white matter, and makes possible multiple-fiber modeling of each voxel for better characterization of brain connectivity. However, the complex orientation information afforded by HARDI makes registration of HARDI images more complicated than scalar images. In particular, the question of how much orientation information is needed for satisfactory alignment has not been sufficiently addressed. Low order orientation representation is generally more robust than high order representation, although the latter provides more information for correct alignment of fiber pathways. However, high order representation, when naïvely utilized, might not necessarily be conducive to improving registration accuracy since similar structures with significant orientation differences prior to proper alignment might be mistakenly taken as non-matching structures. We present in this paper a HARDI registration algorithm, called SPherical Harmonic Elastic REgistration (SPHERE), which in a principled means hierarchically extracts orientation information from HARDI data for structural alignment. The image volumes are first registered using robust, relatively direction invariant features derived from the Orientation Distribution Function (ODF), and the alignment is then further refined using spherical harmonic (SH) representation with gradually increasing orders. This progression from non-directional, single-directional to multi-directional representation provides a systematic means of extracting directional information given by diffusion-weighted imaging. Coupled with a template-subject-consistent soft-correspondence-matching scheme, this approach allows robust and accurate alignment of HARDI data. Experimental results show marked increase in accuracy over a state-of-the-art DTI registration algorithm. Copyright © 2010

  15. A comparative reading of John Steinbeck's and Frank Hardy's works

    Directory of Open Access Journals (Sweden)

    Danica Čerče

    2006-12-01

    Full Text Available Although belonging to literatures spatially and traditionally very remote from each other, John Steinbeck, an American Nobel Prize winner, and Frank Hardy, an Australian novelist and story-teller, share a number of common grounds. The fact that by the time Hardy wrote his first novel, in 1950, Steinbeck was already a popular writer with a long list of masterpieces does not justify the assumption that Hardy had Steinbeck at hand when writing his best-sellers, but it does exclude the opposite direction of inheritance. Hardy's creativ impulses and appropriations may have been the unconscious results of his omnivorous reading after he realized that "the transition from short stories [in which he excelled] to the novel was an obstacle not easily surmounted" as he confessed in The Hard Way: The Story Behind "Power Without Glory" (109. Furthermore, since both were highly regarded proletarian writers in communist Russia, Hardy might have become acquainted with Steinbeck's novels on one of his frequent visits to that country between 1951 and 1969.2 Upon closer reading, inter-textual entanglements with Steinbeck's prose can be detected in several of his books, including But the Dead Are Many (1975, the Billy Borker material collected in The Yarns of Billy Barker (1965 and in The Great Australian Lover and Other Stories (1967, and in Power Without Glory (1950. My purpose in this essay is to briefly illuminate the most striking similarities between the two authors' narrative strategies in terms of their writing style, narrative technique, and subject matter, and link these textual affinities to the larger social and cultural milieu of each author. In the second part I will focus on the parallels between their central works, Steinbeck's The Grapes of Wrath and Hardy's Power Without Glory.

  16. The equivalence between pointwise Hardy inequalities and uniform fatness

    CERN Document Server

    Korte, Riikka; Tuominen, Heli

    2009-01-01

    We prove an equivalence result between the validity of a pointwise Hardy inequality in a domain and uniform capacity density of the complement. This result is new even in Euclidean spaces, but our methods apply in general metric spaces as well. We also present a new transparent proof for the fact that uniform capacity density implies the classical integral version of the Hardy inequality in the setting of metric spaces. In addition, we consider the relations between the above concepts and certain Hausdorff content conditions.

  17. Consequences and applications of the completeness of Hardy's nonlocality

    Science.gov (United States)

    Mansfield, Shane

    2017-02-01

    Logical nonlocality is completely characterized by Hardy's "paradox" in (2 ,2 ,l ) and (2 ,k ,2 ) scenarios. We consider a variety of consequences and applications of this fact. (i) Polynomial algorithms may be given for deciding logical nonlocality in these scenarios. (ii) Bell states are the only entangled two-qubit states which are not logically nonlocal under projective measurements. (iii) It is possible to witness Hardy nonlocality with certainty in a simple tripartite quantum system. (iv) Noncommutativity of observables is necessary and sufficient for enabling logical nonlocality.

  18. The Influence of Religion and Science on Thomas Hardy

    Institute of Scientific and Technical Information of China (English)

    王奋

    2009-01-01

    As a nineteenth-century novelist and a twentieth-century poet,Thomas Hardy was greatly influenced by contemporary religion and science.Due to the social background of his time and his personal life experience,religion and science,these two seemingly contradictory factors,played an important role in most of his literary works as well as his own life.This essay tries to demonstrate this point by offering proves from the following aspects:Victorian society at that time,Hardy's family background,clues in his works and his personal attitude towards nature and human society.

  19. The relation between Hardy's non-locality and violation of Bell inequality

    Science.gov (United States)

    Xiang, Yang

    2011-06-01

    We give an analytic quantitative relation between Hardy's non-locality and Bell operator. We find that Hardy's non-locality is a sufficient condition for the violation of Bell inequality, the upper bound of Hardy's non-locality allowed by information causality just corresponds to Tsirelson bound of Bell inequality and the upper bound of Hardy's non-locality allowed by the principle of no-signaling just corresponds to the algebraic maximum of Bell operator. Then we study the Cabello's argument of Hardy's non-locality (a generalization of Hardy's argument) and find a similar relation between it and violation of Bell inequality. Finally, we give a simple derivation of the bound of Hardy's non-locality under the constraint of information causality with the aid of the above derived relation between Hardy's non-locality and Bell operator.

  20. Winter Hardiness of Annual-Fruiting Raspberries in the South of the Irkutsk Region

    Directory of Open Access Journals (Sweden)

    Rachenko, M. A.

    2013-04-01

    Full Text Available The winter hardiness of different varieties of annual-fruiting raspberries in field and laboratory conditions was studied. The hardiness of annual-fruiting raspberry, mow culture and two-year shoots was assessed. We select the most winter-hardy genotypes promising for cultivation in the South of the Irkutsk region.

  1. New Hardy Spaces Associated with Herz Spaces and Beurling Algebras on Homogeneous Groups

    Institute of Scientific and Technical Information of China (English)

    Yin Sheng JIANG

    2002-01-01

    The author introduces the Hardy spaces associated with the Herz spaces and the Beurlingalgebras on homogeneous groups and establishes their atomic decomposition characterizations. As theapplications of this decomposition, the duals of these Hardy spaces and the boundedness of the centralδ-Calderon-Zygmund operators on these Hardy spaces are studied.

  2. Genetic architecture of winter hardiness and frost tolerance in triticale.

    Science.gov (United States)

    Liu, Wenxin; Maurer, Hans Peter; Li, Guoliang; Tucker, Matthew R; Gowda, Manje; Weissmann, Elmar A; Hahn, Volker; Würschum, Tobias

    2014-01-01

    Abiotic stress experienced by autumn-sown crops during winter is of great economic importance as it can have a severe negative impact on yield. In this study, we investigated the genetic architecture of winter hardiness and frost tolerance in triticale. To this end, we used a large mapping population of 647 DH lines phenotyped for both traits in combination with genome-wide marker data. Employing multiple-line cross QTL mapping, we identified nine main effect QTL for winter hardiness and frost tolerance of which six were overlapping between both traits. Three major QTL were identified on chromosomes 5A, 1B and 5R. In addition, an epistasis scan revealed the contribution of epistasis to the genetic architecture of winter hardiness and frost tolerance in triticale. Taken together, our results show that winter hardiness and frost tolerance are complex traits that can be improved by phenotypic selection, but also that genomic approaches hold potential for a knowledge-based improvement of these important traits in elite triticale germplasm.

  3. TWO PROBLEMS ABOUT COMPOSITION OPERATORS ON HARDY SPACE

    Institute of Scientific and Technical Information of China (English)

    Wu Shuhong; Wang Maofa; Liu Peide

    2005-01-01

    In this paper, two problems about composition operator on Hardy space are considered. Firstly, a new estimation of the norm of a class of composition operators is given. Secondly, the cyclic behavior of the adjoint operator of a composition operator is discussed.

  4. On a more accurate Hardy-Mulholland-type inequality

    Directory of Open Access Journals (Sweden)

    Bicheng Yang

    2016-03-01

    Full Text Available Abstract By using weight coefficients, technique of real analysis, and Hermite-Hadamard’s inequality, we give a more accurate Hardy-Mulholland-type inequality with multiparameters and a best possible constant factor related to the beta function. The equivalent forms, the reverses, the operator expressions, and some particular cases are also considered.

  5. A Poisson type formula for Hardy classes on Heisenberg's group

    Directory of Open Access Journals (Sweden)

    Lopushansky O.V.

    2010-06-01

    Full Text Available The Hardy type class of complex functions with infinite many variables defined on the Schrodinger irreducible unitary orbit of reduced Heisenberg group, generated by the Gauss density, is investigated. A Poisson integral type formula for their analytic extensions on an open ball is established. Taylor coefficients for analytic extensions are described by the associatedsymmetric Fock space.

  6. Root cold hardiness and native distribution of subalpine conifers

    Science.gov (United States)

    Mark D. Coleman; Thomas M. Hinckley; Geoffrey McNaughton; Barbara A. Smit

    1992-01-01

    Root and needle cold hardiness were compared in seedlings of subalpine conifers to determine if differences existed among species originating from either cold continental climates or mild maritime climates. Abies amabilis (Dougl.) Carr. and Tsuga mertensiana (Bong.) Carr. are exclusively distributed in maritime environments,...

  7. John Hardy is the UK's first Breakthrough Prize laureate.

    Science.gov (United States)

    Martin, Seamus J

    2015-12-01

    John Hardy, Professor of Neuroscience at University College London and Editorial Board member of The FEBS Journal, has been awarded The Breakthrough Prize in Life Sciences in recognition of his work identifying mutations that cause amyloid build-up in the brain--research that has transformed the study of Alzheimer's disease and other major neurodegenerative diseases.

  8. The weighted Herz-type Hardy space and its applications

    Institute of Scientific and Technical Information of China (English)

    陆善镇; 杨大春

    1995-01-01

    A certain weighted Herz-type Hardy space is introduced and its atom-decomposition theory is established. As applications of this theory, a boundedness theorem of sublinear operators and an interpolation theorem of linear operators on these spaces are given.

  9. Growth, Flowering and Cold Hardiness of Rockrose in Western Oregon

    Science.gov (United States)

    Ninety-three species, cultivars, and hybrid selections of Cistus spp. L., Halimium spp. Spach. (Dunal) and ×Halimiocistus spp. Janch. were evaluated for growth, flowering, and cold hardiness in a landscape trial in Aurora, OR, from 2004 to 2009. Plants were irrigated to aid establishment when plant...

  10. On the second eigenvalue of a Hardy-Sobolev operator

    Directory of Open Access Journals (Sweden)

    Konijeti Sreenadh

    2004-01-01

    Full Text Available In this note, we study the variational characterization and some properties of the second smallest eigenvalue of the Hardy-Sobolev operator $L_{mu}:=-Delta_{p}-frac{mu}{|x|^p}$ with respect to an indefinite weight $V(x$.

  11. Genetic architecture of winter hardiness and frost tolerance in triticale.

    Directory of Open Access Journals (Sweden)

    Wenxin Liu

    Full Text Available Abiotic stress experienced by autumn-sown crops during winter is of great economic importance as it can have a severe negative impact on yield. In this study, we investigated the genetic architecture of winter hardiness and frost tolerance in triticale. To this end, we used a large mapping population of 647 DH lines phenotyped for both traits in combination with genome-wide marker data. Employing multiple-line cross QTL mapping, we identified nine main effect QTL for winter hardiness and frost tolerance of which six were overlapping between both traits. Three major QTL were identified on chromosomes 5A, 1B and 5R. In addition, an epistasis scan revealed the contribution of epistasis to the genetic architecture of winter hardiness and frost tolerance in triticale. Taken together, our results show that winter hardiness and frost tolerance are complex traits that can be improved by phenotypic selection, but also that genomic approaches hold potential for a knowledge-based improvement of these important traits in elite triticale germplasm.

  12. Quality of temperature and salinity data from Argo profiling floats in the Bay of Bengal

    Digital Repository Service at National Institute of Oceanography (India)

    Parvathi, V.; Pankajakshan, T.; Rajkumar, M.; Prasannakumar, S.; Muraleedharan, P.M.; Ravichandran, M.; Rao, R.R.; Gopalakrishna, V.V.

    on Argo-SPB could not identify any significant systematic bias/error, except for a single profile (cycle No 48) of float-4900675 In the case of Argo-N, significant error is found in most of the salinity profiles from the float-2900268....

  13. HARDI DATA DENOISING USING VECTORIAL TOTAL VARIATION AND LOGARITHMIC BARRIER

    Science.gov (United States)

    Kim, Yunho; Thompson, Paul M.; Vese, Luminita A.

    2010-01-01

    In this work, we wish to denoise HARDI (High Angular Resolution Diffusion Imaging) data arising in medical brain imaging. Diffusion imaging is a relatively new and powerful method to measure the three-dimensional profile of water diffusion at each point in the brain. These images can be used to reconstruct fiber directions and pathways in the living brain, providing detailed maps of fiber integrity and connectivity. HARDI data is a powerful new extension of diffusion imaging, which goes beyond the diffusion tensor imaging (DTI) model: mathematically, intensity data is given at every voxel and at any direction on the sphere. Unfortunately, HARDI data is usually highly contaminated with noise, depending on the b-value which is a tuning parameter pre-selected to collect the data. Larger b-values help to collect more accurate information in terms of measuring diffusivity, but more noise is generated by many factors as well. So large b-values are preferred, if we can satisfactorily reduce the noise without losing the data structure. Here we propose two variational methods to denoise HARDI data. The first one directly denoises the collected data S, while the second one denoises the so-called sADC (spherical Apparent Diffusion Coefficient), a field of radial functions derived from the data. These two quantities are related by an equation of the form S = SSexp (−b · sADC) (in the noise-free case). By applying these two different models, we will be able to determine which quantity will most accurately preserve data structure after denoising. The theoretical analysis of the proposed models is presented, together with experimental results and comparisons for denoising synthetic and real HARDI data. PMID:20802839

  14. Generalized Hardy-Hilbert Integral Operator Inequalities%广义Hardy-Hilbert积分算子不等式

    Institute of Scientific and Technical Information of China (English)

    匡继昌

    2009-01-01

    本文所建立的广义Hardy-Hilbert积分算子不等式,是著名的Hilbert不等式的实质性改进和推广,所求出的该算子的范数统一证明了Hilbert不等式各种参数推广中的最佳常数.

  15. Altimeter and Argo float data assimilation in the Black Sea

    Science.gov (United States)

    Grayek, Sebastian; Stanev, Emil; Schulz-Stellenfleth, Johannes

    2010-05-01

    We analyse the thermo-haline characteristics in the Black Sea during the period 2002-2009 derived from numerical model simulations assimilating different observation data with the aim to improve the model skills. The Nucleus of European Modelling of the Ocean (NEMO) framework is used. In the experiment OI-1 we assimilate satellite altimetry and AVHRR data. In the experiment OI-2 we add also in-situ measurements from ARGO floats. Data assimilation uses the SESAM code and an optimal interpolation approach based on the static covariance matrix derived from the preliminary free model run, which converters the observations into basin temperature and salinity fields. Main attention in the analysis of simulations is been paid to the dominating characteristics of physical fields at seasonal and inter-annual time scales. Empirical orthogonal function (EOF) analysis of steric heights from simulations and their consistence with the ones from satellite altimetry is used to analyse the general characteristics in the thermo-haline signals. Results indicate that the free model run reproduces reasonably well the seasonal variability of Rim Current and the cold intermediate water mass formation. The assimilation of remote sensing observations only (OI-1) improves significantly the dynamics of steric heights, in particular as seen in the analysis of higher degree EOF-modes. However, in this experiment the simulation of profiles needs an improvement. This improvement is ensured by the assimilation of ARGO profiles in OI-2. However, because in the Black Sea ARGO measurements are sparse the benefit of their assimilation has to be considered carefully and is done by an objective analysis on model skills in the entire basin.

  16. Effects of individual and family hardiness on caregiver depression and fatigue.

    Science.gov (United States)

    Clark, Patricia C

    2002-02-01

    Hardiness is defined as commitment to life, viewing change as challenge, and having control over one's life. Previous research suggests that hardiness is related to better outcomes in stressful situations. The effects of individual and family hardiness on depression and fatigue of caregivers of disabled older adults (DA) were examined using a descriptive, cross-sectional design. The sample was 67 caregivers of DA with high functional impairment. One-third of caregivers reported moderate to high fatigue, and 40% had scores indicating possible clinical depression. Memory and behavior problems of the DA were positively correlated with caregiver depression and fatigue. Family hardiness was negatively related to memory and behavior problems of the DA. Controlling for covariates, individual hardiness was negatively associated with depression and fatigue; coping strategies did not mediate the relationship. Caregivers with low individual and family hardiness had more depression than those high in both resources. Additional research is needed to determine the relevance of hardiness theory in caregiving research.

  17. Latest results from the ARGO-YBJ experiment

    CERN Document Server

    Di Sciascio, Giuseppe

    2015-01-01

    The ARGO-YBJ experiment has been in stable data taking for 5 years at the YangBaJing Cosmic Ray Observatory (Tibet, P.R. China, 4300 m a.s.l., 606 g/cm$^2$). With a duty-cycle greater than 86\\% the detector collected about 5$\\times $10$^{11}$ events in a wide energy range, from few hundreds GeV up to about 10 PeV. A number of open problems in cosmic ray physics has been faced exploiting different analyses. In this paper we summarize the latest results in cosmic ray physics and in gamma-ray astronomy.

  18. Gamma ray sources observation with the ARGO-YBJ detector

    Energy Technology Data Exchange (ETDEWEB)

    Vernetto, S., E-mail: vernetto@to.infn.it [IFSI-INAF, Corso Fiume 4, 10133 Torino (Italy)

    2012-11-11

    Since November 2007 the air shower detector ARGO-YBJ is continuously monitoring the gamma ray sky in the declination band from -10 Degree-Sign to +70 Degree-Sign at energies E>0.5TeV. In this work we present the results of our observations of galactic and extragalactic sources during more than 3 years, focusing our attention on the Crab Nebula, the blazar Mrk 421 and the galactic extended source MGRO J1908+06, probably associated to the Fermi pulsar PSR J1907+0602.

  19. Gamma ray sources observed with ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Vernetto, S., E-mail: vernetto@to.infn.it [INAF, Osservatorio Astrofisico di Torino (Italy); INFN, Sezione di Torino (Italy)

    2013-06-15

    The air shower detector ARGO-YBJ is continuously monitoring the gamma ray sky in the declination band from −10° to +70° at energies E>0.5TeV. After ∼4 years of operation, the integrated sensitivity reached the level of ∼28% the Crab Nebula flux. In this work we present a summary of our observations concerning the Crab Nebula, the Cygnus region, the galactic source MGRO J1908+06, and the blazars Mrk421 and Mrk501.

  20. Uncertainty visualization in HARDI based on ensembles of ODFs

    KAUST Repository

    Jiao, Fangxiang

    2012-02-01

    In this paper, we propose a new and accurate technique for uncertainty analysis and uncertainty visualization based on fiber orientation distribution function (ODF) glyphs, associated with high angular resolution diffusion imaging (HARDI). Our visualization applies volume rendering techniques to an ensemble of 3D ODF glyphs, which we call SIP functions of diffusion shapes, to capture their variability due to underlying uncertainty. This rendering elucidates the complex heteroscedastic structural variation in these shapes. Furthermore, we quantify the extent of this variation by measuring the fraction of the volume of these shapes, which is consistent across all noise levels, the certain volume ratio. Our uncertainty analysis and visualization framework is then applied to synthetic data, as well as to HARDI human-brain data, to study the impact of various image acquisition parameters and background noise levels on the diffusion shapes. © 2012 IEEE.

  1. Stages in the evolution of the Hardy-Weinberg law

    Directory of Open Access Journals (Sweden)

    Alan E. Stark

    2006-01-01

    Full Text Available The Hardy-Weinberg law has been used widely for about one hundred years with little question as to the foundations laid down by its originators. The basic assumption of random mating, that is choice of mates by a process akin to that of a lottery, was shown to produce genotypic proportions following the "binomial-square" rule, the so-called Hardy-Weinberg proportions (HWP. It has been assumed by many that random mating was the only way of pairing genes capable of producing HWP. However it has been shown that HWP can be obtained and maintained by non-random mating. The steps along the way to this revelation and some implications are reviewed.

  2. Hardy-Littlewood type inequalities for Laguerre series

    Directory of Open Access Journals (Sweden)

    Chin-Cheng Lin

    2002-01-01

    Full Text Available Let {cj} be a null sequence of bounded variation. We give appreciate smoothness and growth conditions on {cj} to obtain the pointwise convergence as well as Lr-convergence of Laguerre series ∑cjja. Then, we prove a Hardy-Littlewood type inequality ∫0∞|f(t|rdt≤C∑j=0∞|cj|rj¯1−r/2 for certain r≤1, where f is the limit function of ∑cjja. Moreover, we show that if f(x∼∑cjja is in Lr, r≥1, we have the converse Hardy-Littlewood type inequality ∑j=0∞|cj|rj¯β≤C∫0∞|f(t|rdt for r≥1 and β<−r/2.

  3. Hardy's stargazers and the astronomy of other minds.

    Science.gov (United States)

    Henchman, A

    2008-01-01

    This essay argues that Thomas Hardy compares the act of observing another person to the scientific practice of observing the stars in order to reveal structural obstacles to accessing other minds. He draws on astronomy and optics to underscore the discrepancy between the full perception one has of one's own consciousness and the lack of such sensory evidence for the consciousness of others. His scenes of stargazing show such obstacles being temporarily overcome; the stargazer turns away from the thick sensory detail of earthly life and uses minimal visual information as a jumping-off point for the imagination. These visual journeys into space are analogous to those Hardy's readers experience as he wrests them out of their bodies into imaginary landscapes and unfamiliar minds.

  4. Burnout e hardiness: um estudo de evidência de validade Burnout and hardiness: a study of evidence of validity

    Directory of Open Access Journals (Sweden)

    Sandra Cristina Mallar

    2004-06-01

    Full Text Available O presente trabalho foi realizado com o objetivo de verificar se professores que trabalham com alunos portadores de necessidades especiais apresentavam-se com hardiness e, conseqüentemente, sem burnout, como também verificar a validade concorrente entre as dimensões dos instrumentos Maslach burnout Inventory e o Personal Views Survey. Participaram 56 professores que trabalhavam exclusivamente com alunos com necessidades especiais, na faixa etária compreendida entre 19 e 54 anos. Verificou-se que cinco professores apresentavam personalidade resistente ao estresse e outros três, que não apresentavam hardiness, apresentavam burnout. Realizada a análise de correlação entre as dimensões dos dois instrumentos, verificou-se que apenas as dimensões Controle e Redução da Realização Pessoal estão positivamente correlacionadas. Assim, pôde-se concluir que há validade concorrente entre os dois instrumentos, e se confirmou a hipótese de que portadores de hardiness conseguem atenuar os efeitos do estresse e desenvolvem menos burnout.The objective of this work was to verify if teachers who work with students with special needs would show hardiness and, consequently, no burnout, and also to verify the concurrent validity between the dimensions of both instrument Maslach burnout Inventory and Personal Views Survey. Fifty-six teachers, who work only whith students with special needs and aged 1954 years old, participated on this study. Five teachers presented resistant personality to stress and other three, who did not showed hardiness, had burnout. After the analysis of correlation among the dimensions of the two instruments, only the dimensions Control and Reduction of the Personal Realization are positively co-related. So, there is a concurrent validity between the two instruments, and it is confirmed the hypothesis that people who have hardiness can attenuate the effects of stress and develop less burnout.

  5. A multiple more accurate Hardy-Littlewood-Polya inequality

    Directory of Open Access Journals (Sweden)

    Qiliang Huang

    2012-11-01

    Full Text Available By introducing multi-parameters and conjugate exponents and using Euler-Maclaurin’s summation formula, we estimate the weight coefficient and prove a multiple more accurate Hardy-Littlewood-Polya (H-L-P inequality, which is an extension of some earlier published results. We also prove that the constant factor in the new inequality is the best possible, and obtain its equivalent forms.

  6. On Hardy's Theorem on SU(1,1)

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The classical Hardy theorem asserts that f and its Fourier transform (f) can not both be very rapidly decreasing. This theorem was generalized on Lie groups and also for the Fourier-Jacobi transform. However, on SU(1, 1) there are infinitely many "good"functions in the sense that f and its spherical Fourier transform (f) both have good decay.In this paper, we shall characterize such functions on SU(1,1).

  7. ARGO-YBJ: Physics results and detector stabilization

    Energy Technology Data Exchange (ETDEWEB)

    Camarri, P., E-mail: camarri@roma2.infn.it [Università di Roma “Tor Vergata”, Dipartimento di Fisica, Via della Ricerca Scientifica 1, Roma (Italy); INFN, Sezione di Roma Tor Vergata, Via della Ricerca Scientifica 1, Roma (Italy)

    2013-08-01

    The ARGO-YBJ experiment at 4300 m above sea level on the Tibet plateau is a full-coverage array of Resistive Plate Chambers (RPCs) operated in streamer mode, covering a surface of 74×78 m{sup 2} surrounded by a guard ring. It was designed to detect extensive air showers generated by primary cosmic rays in the energy range from a few hundred GeV up to about 1 PeV. It has been running uninterruptedly with its complete layout since October 2007, providing results in γ-ray astrophysics and cosmic-ray physics. Some of the main results obtained by ARGO-YBJ in the study of TeV γ rays from Supernova Remnants and from Active Galactic Nuclei and in the study of the medium-scale cosmic-ray anisotropy will be described. We also discuss the results of a test which proves the feasibility of the control procedure devised to stabilize the response of the detector.

  8. Data assimilation of Argo profiles in a northwestern Pacific model

    Science.gov (United States)

    Wang, Zhaoyi; Storto, Andrea; Pinardi, Nadia; Liu, Guimei; Wang, Hui

    2017-01-01

    Based on a novel estimation of background-error covariances for assimilating Argo profiles, an oceanographic three-dimensional variational (3DVAR) data assimilation scheme was developed for the northwestern Pacific Ocean model (NwPM) for potential use in operational predictions and maritime safety applications. Temperature and salinity data extracted from Argo profiles from January to December 2010 were assimilated into the NwPM. The results show that the average daily temperature (salinity) root mean square error (RMSE) decreased from 0.99 °C (0.10 psu) to 0.62 °C (0.07 psu) in assimilation experiments throughout the northwestern Pacific, which represents a 37.2 % (27.6 %) reduction in the error. The temperature (salinity) RMSE decreased by ˜ 0.60 °C ( ˜ 0.05 psu) for the upper 900 m (1000 m). Sea level, temperature and salinity were in better agreement with in situ and satellite datasets after data assimilation than before. In addition, a 1-month experiment with daily analysis cycles and 5-day forecasts explored the performance of the system in an operational configuration. The results highlighted the positive impact of the 3DVAR initialization at all forecast ranges compared to the non-assimilative experiment. Therefore, the 3DVAR scheme proposed here, coupled to ROMS, shows a good predictive performance and can be used as an assimilation scheme for operational forecasting.

  9. Multifrequency seismic detectability of seasonal thermoclines assessed from ARGO data

    Science.gov (United States)

    Ker, S.; Le Gonidec, Y.; Marié, L.

    2016-08-01

    Seismic oceanography is a developing research topic where new acoustic methods allow high-resolution teledetection of the thermohaline structure of the ocean. First implementations to study the Ocean Surface Boundary Layer have recently been achieved but remain very challenging due to the weakness and shallowness of such seismic reflectors. In this article, we develop a multifrequency seismic analysis of hydrographic data sets collected in a seasonally stratified midlatitude shelf by ARGO network floats to assess the detectability issue of shallow thermoclines. This analysis, for which sensitivity to the data reduction scheme used by ARGO floats for the transmission of the profiles is discussed, allows characterizing both the depth location and the frequency dependency of the dominant reflective feature of such complex structures. This approach provides the first statistical distribution of the range of variability of the frequency-dependent seismic reflection amplitude of the midlatitude seasonal thermoclines. We introduce a new parameter to quantify the overall capability of a multichannel seismic setup, including the source strength, the fold, and the ambient noise level, to detect shallow thermoclines. Seismic source signals are approximated by Ricker wavelets, providing quantitative guidelines to help in the design of seismic experiments targeting such oceanic reflectors. For shallow midlatitude seasonal thermoclines, we show that the detectability is optimal for seismic peak frequencies between 200 and 400 Hz: this means that airgun and Sparker sources are not well suited and that significant improvements of source devices will be necessary before seismic imaging of OSBL structures can be reliably attempted.

  10. The Status of the ARGO Experiment at YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Aielli, G. [Dipartimento di Fisica dell' Universita ' Tor Vergata' di Roma and INFN Sezione di Roma2 (Italy); Bacci, C. [Dipartimento di Fisica dell' Universita ' Roma Tre' di Roma and INFN Sezione di Roma3 (Italy); Bartoli, B. [Dipartimento di Fisica dell' Universita di Napoli and INFN Sezione di Napoli (Italy); Bernardini, P. [Dipartimento di Fisica dell' Universita di Lecce and INFN Sezione di Lecce (Italy); Bi, X.J. [Key Laboratory of Particle Astrophyics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, Beijing (China); Bleve, C. [Dipartimento di Fisica dell' Universita di Lecce and INFN Sezione di Lecce (Italy); Bussino, S. [Dipartimento di Fisica dell' Universita ' Roma Tre' di Roma and INFN Sezione di Roma3 (Italy); Calabrese Melcarne, A.K. [Dipartimento di Fisica dell' Universita di Lecce and INFN Sezione di Lecce (Italy); Camarri, P. [Dipartimento di Fisica dell' Universita ' Tor Vergata' di Roma and INFN Sezione di Roma2 (Italy); Campana, D. [Dipartimento di Fisica dell' Universita di Napoli and INFN Sezione di Napoli (Italy); Cao, Z. [Key Laboratory of Particle Astrophyics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, Beijing (China); Cardarelli, R. [Dipartimento di Fisica dell' Universita ' Tor Vergata' di Roma and INFN Sezione di Roma2 (Italy); Catalanotti, S.; Cavaliere, S. [Dipartimento di Fisica dell' Universita di Napoli and INFN Sezione di Napoli (Italy); Celio, P. [Dipartimento di Fisica dell' Universita ' Roma Tre' di Roma and INFN Sezione di Roma3 (Italy); Chen, S.Z.; Cheng, N. [Key Laboratory of Particle Astrophyics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, Beijing (China); Creti, P. [Dipartimento di Fisica dell' Universita di Lecce and INFN Sezione di Lecce(Italy); Cui, S.W. [Hebei Normal University, Shijiazhuang 050016, Hebei (China)] (and others)

    2007-04-15

    The ARGO-YBJ experiment, located at Yangbajing, Tibet, China, performed by a wide Sino-Italian collaboration, is designed to study cosmic rays, sub-TeV gamma ray sources and GeV Gamma Ray Burst (GRB) emission in the northern hemisphere, by means of detecting small size EAS (Extensive Air Shower) using a full coverage RPC (Resistive Plate Chamber) carpet. The central carpet of the detector is installed and put into operation to date, with 1900m{sup 2} of the carpet already operating since December 2004. With a trigger multiplicity of {>=}60 hits, corresponding to a primary mode energy of 2 TeV, the angular resolution of EAS measurements is < 1{sup o} for showers with more than 500 recorded hits. We report the preliminary results of data taking performed during 2005: the all-sky survey for gamma ray sources and the search for GRBs, as well as the cosmic ray spectrum up to about 100 TeV. The Forbush decrease of the cosmic ray flux during January, 2005 is observed using the ARGO data.

  11. Application of Argo-derived background diapycnal mixing in HYCOM

    Science.gov (United States)

    Deng, Zengan; Yu, Ting

    2014-09-01

    Internal wave-induced background diapycnal mixing (DM) in the upper 2000 m of the global ocean, which primarily depends on the local inertial frequency, is calculated based on Argo observations using the newly published Thermodynamic Equation of Seawater-2010 (IOC, SCOR and IAPSO, 2010). This spatially dependent background DM agrees well with previous theoretical and observational mixing estimates. More importantly, the DM data are gridded, which renders the data suitable for modeling applications. The implementation of these data in the HYbrid Coordinate Ocean Model (HYCOM) demonstrates the potential for their application in numerical ocean models. Three numerical experiments that are specifically designed with different DM settings reveal that the meridional overturning circulation (MOC), temperature and salinity in the Atlantic change substantially when the constant background DM is replaced with Argo-derived mixing. Tropical and high-latitude regions that are considered important for global climate are identified as the areas that are most sensitive to the magnitude of the background DM. Compared with constant background DM, the enhanced mid-latitude DM most likely contributes substantially to the MOC transport. Thus, although room remains for improvement, the spatially varying DM derived in the present study may facilitate global circulation and climate modeling.

  12. 关于Hardy-Hilbert不等式的改进与应用%On a Refinement of Hardy-Hilbert's Inequality and Its Applications

    Institute of Scientific and Technical Information of China (English)

    杨必成

    2000-01-01

    In this paper, by introducting a weight coefficient of the form: π/sin(π/r)-1/10(2π+1)1+1/r(r>,π∈N0),Hard-Hilbert's inequality is refined. As its applications, an equivalent Hardy-Hilbert's type inequality and its strengthened form are given, and Hardy-Littlewood's inequality is generalized and improved.

  13. Distributions of Hardy-Weinberg equilibrium test statistics.

    Science.gov (United States)

    Rohlfs, R V; Weir, B S

    2008-11-01

    It is well established that test statistics and P-values derived from discrete data, such as genetic markers, are also discrete. In most genetic applications, the null distribution for a discrete test statistic is approximated with a continuous distribution, but this approximation may not be reasonable. In some cases using the continuous approximation for the expected null distribution may cause truly null test statistics to appear nonnull. We explore the implications of using continuous distributions to approximate the discrete distributions of Hardy-Weinberg equilibrium test statistics and P-values. We derive exact P-value distributions under the null and alternative hypotheses, enabling a more accurate analysis than is possible with continuous approximations. We apply these methods to biological data and find that using continuous distribution theory with exact tests may underestimate the extent of Hardy-Weinberg disequilibrium in a sample. The implications may be most important for the widespread use of whole-genome case-control association studies and Hardy-Weinberg equilibrium (HWE) testing for data quality control.

  14. Inheritance of autumn frost hardiness in Pinus sylvestris L. seedlings.

    Science.gov (United States)

    Norell, L; Eriksson, G; Ekberg, I; Dormling, I

    1986-07-01

    Inheritance of frost hardiness was analysed making use of a 12×12 incomplete factorial mating design. Owing to space limitations only 59 families could be tested in four experiments. To link the four experiments, some families were common to two or more experiments. The seedlings were grown in climate chambers under conditions inducing autumn hardening. The plants were exposed to a freezing temperature of -10 °C for three hours at night lengths of 11-13 h. A statistical model was developed for analyses of variance of our data. The genetic variation and the variation due to the cultivation regimes during autumn hardening were of the same magnitude. The additive effects were the most important ones for induction of frost damage. No interaction following long-distance crossing was noted. Mixed model equations were used for ranking of the parents. The results obtained support a polygenic inheritance of frost hardiness. The large within-population variation offers good opportunities for hardiness breeding.

  15. Effect of Different Photoperiods on Cold Hardiness in Cherry

    Directory of Open Access Journals (Sweden)

    A.Z. Makaraci

    2009-01-01

    Full Text Available In this research we have investigated the effects of different photoperiods on cold hardiness of cherry trees (Prunus avium cv. Ulster. One year old, cherry trees were exposed 8 hours of day length and 16 hours of dark period for short day conditions and 16 hours of light and 8 hours of dark period for long day conditions. We also compared the acclimatization pattern of cherry trees with hybrid aspen (Populus tremula ×Populus tremuloides trees. LT50 values indicated that short day and long day conditions did not alter the cold hardiness of cherry trees. Under the same experimental conditions hybrid aspen trees were affected from different photoperiods. Aspen trees exposed to short day conditions were hardier than the trees exposed to long day conditions. We also investigated the acclimatization the patterns of basal and apical parts of the branches both in cherry and aspen trees. There were no significant differences in cold hardiness of the basal and apical parts of the branches in aspen and cherry trees.

  16. How essential are Argo observations to constrain a global ocean data assimilation system?

    Science.gov (United States)

    Turpin, V.; Remy, E.; Le Traon, P. Y.

    2016-02-01

    Observing system experiments (OSEs) are carried out over a 1-year period to quantify the impact of Argo observations on the Mercator Ocean 0.25° global ocean analysis and forecasting system. The reference simulation assimilates sea surface temperature (SST), SSALTO/DUACS (Segment Sol multi-missions dALTimetrie, d'orbitographie et de localisation précise/Data unification and Altimeter combination system) altimeter data and Argo and other in situ observations from the Coriolis data center. Two other simulations are carried out where all Argo and half of the Argo data are withheld. Assimilating Argo observations has a significant impact on analyzed and forecast temperature and salinity fields at different depths. Without Argo data assimilation, large errors occur in analyzed fields as estimated from the differences when compared with in situ observations. For example, in the 0-300 m layer RMS (root mean square) differences between analyzed fields and observations reach 0.25 psu and 1.25 °C in the western boundary currents and 0.1 psu and 0.75 °C in the open ocean. The impact of the Argo data in reducing observation-model forecast differences is also significant from the surface down to a depth of 2000 m. Differences between in situ observations and forecast fields are thus reduced by 20 % in the upper layers and by up to 40 % at a depth of 2000 m when Argo data are assimilated. At depth, the most impacted regions in the global ocean are the Mediterranean outflow, the Gulf Stream region and the Labrador Sea. A significant degradation can be observed when only half of the data are assimilated. Therefore, Argo observations matter to constrain the model solution, even for an eddy-permitting model configuration. The impact of the Argo floats' data assimilation on other model variables is briefly assessed: the improvement of the fit to Argo profiles do not lead globally to unphysical corrections on the sea surface temperature and sea surface height. The main conclusion

  17. Estimates of Some Integral Operators with Bounded Variable Kernels on the Hardy and Weak Hardy Spaces over Rn

    Institute of Scientific and Technical Information of China (English)

    Hua WANG

    2016-01-01

    In this paper, we first introduce Lσ 1-(log L)σ 2 conditions satisfied by the variable kernelsΩ (x, z) for 0 ≤ σ 1 ≤ 1 and σ 2 ≥ 0. Under these new smoothness conditions, we will prove the boundedness properties of singular integral operators TΩ , fractional integrals TΩ ,α and parametric Marcinkiewicz integralsμρΩ with variable kernels on the Hardy spaces Hp(Rn) and weak Hardy spaces WHp(Rn). Moreover, by using the interpolation arguments, we can get some corresponding results for the above integral operators with variable kernels on Hardy–Lorentz spaces Hp,q(Rn) for all p

  18. A comparison of Argo nominal surface and near-surface temperature for validation of AMSR-E SST

    Science.gov (United States)

    Liu, Zenghong; Chen, Xingrong; Sun, Chaohui; Wu, Xiaofen; Lu, Shaolei

    2017-05-01

    Satellite SST (sea surface temperature) from the Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) is compared with in situ temperature observations from Argo profiling floats over the global oceans to evaluate the advantages of Argo NST (near-surface temperature: water temperature less than 1 m from the surface). By comparing Argo nominal surface temperature ( 5 m) with its NST, a diurnal cycle caused by daytime warming and nighttime cooling was found, along with a maximum warming of 0.08±0.36°C during 14:00-15:00 local time. Further comparisons between Argo 5-m temperature/Argo NST and AMSR-E SST retrievals related to wind speed, columnar water vapor, and columnar cloud water indicate warming biases at low wind speed (28 mm during daytime. The warming tendency is more remarkable for AMSR-E SST/Argo 5-m temperature compared with AMSR-E SST/Argo NST, owing to the effect of diurnal warming. This effect of diurnal warming events should be excluded before validation for microwave SST retrievals. Both AMSR-E nighttime SST/Argo 5-m temperature and nighttime SST/Argo NST show generally good agreement, independent of wind speed and columnar water vapor. From our analysis, Argo NST data demonstrated their advantages for validation of satellite-retrieved SST.

  19. The personality construct of hardiness, III: Relationships with repression, innovativeness, authoritarianism, and performance.

    Science.gov (United States)

    Maddi, Salvatore R; Harvey, Richard H; Khoshaba, Deborah M; Lu, John L; Persico, Michele; Brow, Marnie

    2006-04-01

    Previous research has established hardiness as a dispositional factor in preserving and enhancing performance and health despite stressful circumstances. The present four studies continue this construct-validational process by (a) introducing a shortened version of the hardiness measure and (b) testing hypotheses concerning the relationship between hardiness and repressive coping, right-wing authoritarianism, innovative behavior, and billable hours (a measure of consulting effectiveness). Results of these studies suggest the adequate reliability and validity of the Personal Views Survey III-R, which is the shortened, 18-item measure of hardiness. Further, results support the hypothesis that the relationship of hardiness is negative with repressive coping and right-wing authoritarianism and positive with innovative behavior and billable hours. Hardiness also appears unrelated to socially desirable responding.

  20. Accurate estimation of influenza epidemics using Google search data via ARGO.

    Science.gov (United States)

    Yang, Shihao; Santillana, Mauricio; Kou, S C

    2015-11-24

    Accurate real-time tracking of influenza outbreaks helps public health officials make timely and meaningful decisions that could save lives. We propose an influenza tracking model, ARGO (AutoRegression with GOogle search data), that uses publicly available online search data. In addition to having a rigorous statistical foundation, ARGO outperforms all previously available Google-search-based tracking models, including the latest version of Google Flu Trends, even though it uses only low-quality search data as input from publicly available Google Trends and Google Correlate websites. ARGO not only incorporates the seasonality in influenza epidemics but also captures changes in people's online search behavior over time. ARGO is also flexible, self-correcting, robust, and scalable, making it a potentially powerful tool that can be used for real-time tracking of other social events at multiple temporal and spatial resolutions.

  1. Quality Control of ARGO Data Based on Climatological T-S Models

    Institute of Scientific and Technical Information of China (English)

    纪风颖; 林绍花

    2004-01-01

    By implementing the ARGO program, a large number of T-S profiles can be observed in the world ocean. However, it is very difficult to examine changes of the sensitivity of the sensors equipped at the ARGO floats, because it is difficult to understand their condition in the sea and the reliability of the data. Quality control must be done in order to avoid the wrong conclusion deduced from the wrong data.One of the realistic methods for quality control of the ARGO data is the comparison with the local climatology. High quality climatological T-S models in northwest Pacific have been built based on the Nansen bottle data and CTD data for the quality control in NMDIS. The models are used to check the ARGO data in this area and have got good result.

  2. Kauglabor ehk Üle mere õppimine / Argo Rosin ; intervjueerinud Raivo Juurak

    Index Scriptorium Estoniae

    Rosin, Argo, 1972-

    2011-01-01

    Intervjuu TTÜ elektriajamite ja jõuelektroonika instituudi teaduri Argo Rosinaga kauglaborist, kus Kuressaare kolledži üliõpilased käivitavad TTÜ energeetikamajas üles pandud elektrilisi katseseadmeid Saaremaalt lahkumata

  3. On Hardy's paradox, weak measurements, and multitasking diagrams

    Energy Technology Data Exchange (ETDEWEB)

    Meglicki, Zdzislaw, E-mail: gustav@indiana.edu [Indiana University, Office of the Vice President for Information Technology, 601 E. Kirkwood Ave., Room 116, Bloomington, IN 47405-1223 (United States)

    2011-07-04

    We discuss Hardy's paradox and weak measurements by using multitasking diagrams, which are introduced to illustrate the progress of quantum probabilities through the double interferometer system. We explain how Hardy's paradox is avoided and elaborate on the outcome of weak measurements in this context. -- Highlights: → Hardy's paradox explained and eliminated. → Weak measurements: what is really measured? → Multitasking diagrams: introduced and used to discuss quantum mechanical processes.

  4. Problem-solving skills and perceived stress among undergraduate students: The moderating role of hardiness.

    Science.gov (United States)

    Abdollahi, Abbas; Abu Talib, Mansor; Carlbring, Per; Harvey, Richard; Yaacob, Siti Nor; Ismail, Zanariah

    2016-06-26

    This study was designed to examine the relationships between problem-solving skills, hardiness, and perceived stress and to test the moderating role of hardiness in the relationship between problem-solving skills and perceived stress among 500 undergraduates from Malaysian public universities. The analyses showed that undergraduates with poor problem-solving confidence, external personal control of emotion, and approach-avoidance style were more likely to report perceived stress. Hardiness moderated the relationships between problem-solving skills and perceived stress. These findings reinforce the importance of moderating role of hardiness as an influencing factor that explains how problem-solving skills affect perceived stress among undergraduates.

  5. Multiple shell shower fronts in EAS with ARGO-YBJ

    Directory of Open Access Journals (Sweden)

    Marsella G.

    2015-01-01

    Full Text Available The ARGO-YBJ experiment is an Extensive Air Shower array that has been operated at the high altitude Yangbajing Cosmic Ray Laboratory (Tibet, P.R. China 4300 m a.s.l. in its final configuration since December 2007 until February 2013. The detector consists of a dense layer of Resistive Plate Counters (RPCs covering an area of about 11000 m2. It has been designed to measure the temporal and spatial structure of Extensive Air Showers (EAS with high space-time resolution. The detector gives a quite highly detailed picture of shower footprints at ground. It is perfectly suitable to understand the EAS morphology. These detector characteristics have been used for seeking particles of large rest mass produced in cosmic rays by measuring the Multiple Shell Shower Fronts relative delays. The technique and preliminary results will be illustrated in the present work.

  6. Consistency of Aquarius sea surface salinity with Argo products on various spatial and temporal scales

    Science.gov (United States)

    Lee, Tong

    2016-04-01

    Understanding the accuracies of satellite-derived sea surface salinity measurements in depicting temporal changes and their dependence on spatiotemporal scales is important to applications, capability assessment, and future satellite mission design. This study quantifies the consistency between Aquarius Version 4 monthly gridded sea surface salinity (SSS) with two Argo-based monthly gridded near-surface salinity products for describing temporal changes on 1° × 1°, 3° × 3°, and 10° × 10° scales. Globally averaged standard deviation values for Aquarius-Argo salinity differences on these three spatial scales are 0.16, 0.14, and 0.09 practical salinity unit (psu), compared to those between the two Argo products of 0.10, 0.09, and 0.04 psu. The consistency between Aquarius and Argo is similar to that between the two Argo products in the tropics for seasonal signals, and in the tropics and midlatitudes for nonseasonal signals. Therefore, the uncertainties of Argo products for various scales need to be considered in evaluating satellite SSS. Innovative satellite technologies are needed to improve high-latitude satellite SSS measurements.

  7. Representations of Hardy Algebras: Absolute Continuity, Intertwiners and Superharmonic Operators

    CERN Document Server

    Muhly, Paul S

    2010-01-01

    Suppose $\\mathcal{T}_{+}(E)$ is the tensor algebra of a $W^{*}$-correspondence $E$ and $H^{\\infty}(E)$ is the associated Hardy algebra. We investigate the problem of extending completely contractive representations of $\\mathcal{T}_{+}(E)$ on a Hilbert space to ultra-weakly continuous completely contractive representations of $H^{\\infty}(E)$ on the same Hilbert space. Our work extends the classical Sz.-Nagy - Foia\\c{s} functional calculus and more recent work by Davidson, Li and Pitts on the representation theory of Popescu's noncommutative disc algebra.

  8. Hardy and Lieb-Thirring Inequalities for Anyons

    DEFF Research Database (Denmark)

    Lundholm, Douglas Björn Alexander; Solovej, Jan Philip

    2013-01-01

    We consider the many-particle quantum mechanics of anyons, i.e. identical particles in two space dimensions with a continuous statistics parameter α∈[0,1] ranging from bosons (α = 0) to fermions (α = 1). We prove a (magnetic) Hardy inequality for anyons, which in the case that α is an odd numerator...... fraction implies a local exclusion principle for the kinetic energy of such anyons. From this result, and motivated by Dyson and Lenard’s original approach to the stability of fermionic matter in three dimensions, we prove a Lieb-Thirring inequality for these types of anyons....

  9. On the applications of Hardy class functions in scattering theory

    CERN Document Server

    Gadella, M

    2007-01-01

    This paper is a response to an article (R. de la Madrid, Journal of Physics A: Mathematical and General, 39,9255-9268 (2006)) recently published in Journal of Physics A: Mathematical and Theoretical. The article claims that the theory of resonances and decaying states based on certain rigged Hilbert spaces of Hardy functions is physically untenable. In this paper we show that all of the key conclusions of the cited article are the result of either the errors in mathematical reasoning or an inadequate understanding of the literature on the subject.

  10. Commutators of Integral Operators with Variable Kernels on Hardy Spaces

    Indian Academy of Sciences (India)

    Pu Zhang; Kai Zhao

    2005-11-01

    Let $T_{,}(0≤ < n)$ be the singular and fractional integrals with variable kernel $(x,z)$, and $[b, T_{,}]$ be the commutator generated by $T_{,}$ and a Lipschitz function . In this paper, the authors study the boundedness of $[b, T_{,}]$ on the Hardy spaces, under some assumptions such as the $L^r$-Dini condition. Similar results and the weak type estimates at the end-point cases are also given for the homogeneous convolution operators $T_{\\overline{},}(0≤ < n)$. The smoothness conditions imposed on $\\overline{}$ are weaker than the corresponding known results.

  11. ARGO-YBJ:丰富多彩的宇宙线观测%ARGO-YBJ: Fruitful Cosmic Ray Observations

    Institute of Scientific and Technical Information of China (English)

    曹臻

    2012-01-01

    Being smoothly operated for 5 years, the ARGO-YBJ experiment collected 0.4 trillion cosmic ray event samples. Many scientific goals have been achieved based on the very important data base. Here in this article, we summarize all major contributions to cosmic ray related researches, including conventional measurements such as cosmic ray energy spectrum, composition and anisotropy. The researches also cover many non-traditional topics such as the monitoring of solar activity using Galactic cosmic rays, forecasting large geomagnetic storms induced by huge flares of the sun, exploring the correlation between thunderstorms and extensives air shower of cosmic rays and so forth. With the progresses of the future experiment LHAASO, all researches reported in this paper will be greatly enhanced using the most sensitive new generation apparatus. Breakthrough may be expected in some of the topics.

  12. Overexpression of ARGOS Genes Modifies Plant Sensitivity to Ethylene, Leading to Improved Drought Tolerance in Both Arabidopsis and Maize.

    Science.gov (United States)

    Shi, Jinrui; Habben, Jeffrey E; Archibald, Rayeann L; Drummond, Bruce J; Chamberlin, Mark A; Williams, Robert W; Lafitte, H Renee; Weers, Ben P

    2015-09-01

    Lack of sufficient water is a major limiting factor to crop production worldwide, and the development of drought-tolerant germplasm is needed to improve crop productivity. The phytohormone ethylene modulates plant growth and development as well as plant response to abiotic stress. Recent research has shown that modifying ethylene biosynthesis and signaling can enhance plant drought tolerance. Here, we report novel negative regulators of ethylene signal transduction in Arabidopsis (Arabidopsis thaliana) and maize (Zea mays). These regulators are encoded by the ARGOS gene family. In Arabidopsis, overexpression of maize ARGOS1 (ZmARGOS1), ZmARGOS8, Arabidopsis ARGOS homolog ORGAN SIZE RELATED1 (AtOSR1), and AtOSR2 reduced plant sensitivity to ethylene, leading to enhanced drought tolerance. RNA profiling and genetic analysis suggested that the ZmARGOS1 transgene acts between an ethylene receptor and CONSTITUTIVE TRIPLE RESPONSE1 in the ethylene signaling pathway, affecting ethylene perception or the early stages of ethylene signaling. Overexpressed ZmARGOS1 is localized to the endoplasmic reticulum and Golgi membrane, where the ethylene receptors and the ethylene signaling protein ETHYLENE-INSENSITIVE2 and REVERSION-TO-ETHYLENE SENSITIVITY1 reside. In transgenic maize plants, overexpression of ARGOS genes also reduces ethylene sensitivity. Moreover, field testing showed that UBIQUITIN1:ZmARGOS8 maize events had a greater grain yield than nontransgenic controls under both drought stress and well-watered conditions.

  13. Estimating Climate Trends: Application to United States Plant Hardiness Zones

    Directory of Open Access Journals (Sweden)

    Nir Y. Krakauer

    2012-01-01

    Full Text Available The United States Department of Agriculture classifies plant hardiness zones based on mean annual minimum temperatures over some past period (currently 1976–2005. Since temperatures are changing, these values may benefit from updating. I outline a multistep methodology involving imputation of missing station values, geostatistical interpolation, and time series smoothing to update a climate variable’s expected value compared to a climatology period and apply it to estimating annual minimum temperature change over the coterminous United States. I show using hindcast experiments that trend estimation gives more accurate predictions of minimum temperatures 1-2 years in advance compared to the previous 30 years’ mean alone. I find that annual minimum temperature increased roughly 2.5 times faster than mean temperature (~2.0 K versus ~0.8 K since 1970, and is already an average of 1.2  0.5 K (regionally up to ~2 K above the 1976–2005 mean, so that much of the country belongs to warmer hardiness zones compared to the current map. The methods developed may also be applied to estimate changes in other climate variables and geographic regions.

  14. 关于Hardy-Hilbert积分不等式及其等价形式%On Hardy-Hilbert's Integral Inequality and Its Equivalent Form

    Institute of Scientific and Technical Information of China (English)

    杨必成

    2003-01-01

    In this paper, by introducing three parameters a, b and λ, we give some new generalizations of Hardy-Hilbert's integral inequality. As applications, we consider its equivalent form and some particular results.

  15. Hardiness and the Big Five Personality Traits among Chinese University Students

    Science.gov (United States)

    Zhang, Li-fang

    2011-01-01

    This study examines the construct of hardiness with the Big Five personality traits among 362 Chinese university students. Participants in the study responded to the Dispositional Hardiness Scale (Bartone, Ursano, Wright, & Ingraham, 1989) and the Revised NEO Personality Inventory (Costa & McCrae, 1992). Results indicate that personality…

  16. Self-Perceived Creativity, Family Hardiness, And Emotional Intelligence Of Chinese Gifted Students In Hong Kong

    Science.gov (United States)

    Chan, David W.

    2005-01-01

    This study assessed the self-perceptions of 212 gifted students regarding their creativity, family hardiness, and emotional intelligence. There were in general no gender and age group differences on these self-perceptions, with the exception that younger students perceived their families as more hardy than did older students. The results of…

  17. A Lab Exercise Explaining Hardy-Weinberg Equilibrium and Evolution Effectively.

    Science.gov (United States)

    Winterer, Juliette

    2001-01-01

    Presents a set of six activities in population genetics for a college-level biology course that helps students understand the Hardy-Weinberg principle. Activities focus on characterizing a population, Hardy-Weinberg proportions, genetic drift, mutation and selection, population size and divergence, and secondary contact. The only materials…

  18. The Relationship between Resilience and Hardiness in Patients with Type 2 Diabetes in Yazd

    Directory of Open Access Journals (Sweden)

    N Mazlom Bafroe

    2015-05-01

    Conclusions: Regarding the positive relationship between hardiness and resilience, it could be expected that employing proper treatment in order to increase resilience and hardiness in diabetes, will lead to a decrease in perception of psychological problems, as well as an increase in quality of life.

  19. Hardy inequality on time scales and its application to half-linear dynamic equations

    Directory of Open Access Journals (Sweden)

    Řehák Pavel

    2005-01-01

    Full Text Available A time-scale version of the Hardy inequality is presented, which unifies and extends well-known Hardy inequalities in the continuous and in the discrete setting. An application in the oscillation theory of half-linear dynamic equations is given.

  20. Resilience and Hardiness in Repatriated Vietnam-Era Prisoners of War

    Science.gov (United States)

    2013-07-31

    originally developed hardiness was felt to be separate from negative affectivity and neuroticism in predicting adaptability. RESULTS Bond...validity of original resilience/hardiness scores. REFERENCES Block, J., & Kremen, A.M. (1996). IQ and ego-resilience: Conceptual and

  1. Beurling type theorem on the Bergman space via the Hardy space of the bidisk

    Institute of Scientific and Technical Information of China (English)

    SUN ShunHua; ZHENG DeChao

    2009-01-01

    In this paper, by lifting the Bergman shift as the compression of an isometry on a subspace of the Hardy space of the bidisk, we give a proof of the Beurling type theorem on the Bergman space of Aleman, Richter and Sundberg (1996) via the Hardy space of the bidisk.

  2. The Contrasting Analysis of Three Hardy's Heroines through An Environment-Personality-Destiny Main Line

    Institute of Scientific and Technical Information of China (English)

    李博

    2008-01-01

    This paper aims to reveal Thomas Hardy's deep comprehension and profound sympathy with female under the limitation of male-power tradition. According to the environment-personality-destiny main line, my paper proceeds with theoretic discussion, systematical analysis and thorough dissection on five selected heroines in Hardy's novels.

  3. BOUNDEDNESS OF HIGHER ORDER COMMUTATORS OF GENERALIZED FRACTIONAL INTEGRAL OPERATORS ON HARDY SPACES

    Institute of Scientific and Technical Information of China (English)

    Chunlei He; Lisheng Shu

    2005-01-01

    Let Tμ,b,m be the higher order commutator generated by a generalized fractional integral operator Tμ and a BMO function b. In this paper, we will study the boundedness of Tμ,b,m on classical Hardy spaces and Herz-type Hardy spaces.

  4. Hardiness and the Big Five Personality Traits among Chinese University Students

    Science.gov (United States)

    Zhang, Li-fang

    2011-01-01

    This study examines the construct of hardiness with the Big Five personality traits among 362 Chinese university students. Participants in the study responded to the Dispositional Hardiness Scale (Bartone, Ursano, Wright, & Ingraham, 1989) and the Revised NEO Personality Inventory (Costa & McCrae, 1992). Results indicate that personality…

  5. Beurling type theorem on the Bergman space via the Hardy space of the bidisk

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    In this paper,by lifting the Bergman shift as the compression of an isometry on a subspace of the Hardy space of the bidisk,we give a proof of the Beurling type theorem on the Bergman space of Aleman,Richter and Sundberg(1996) via the Hardy space of the bidisk.

  6. Hardiness and the Big Five Personality Traits among Chinese University Students

    Science.gov (United States)

    Zhang, Li-fang

    2011-01-01

    This study examines the construct of hardiness with the Big Five personality traits among 362 Chinese university students. Participants in the study responded to the Dispositional Hardiness Scale (Bartone, Ursano, Wright, & Ingraham, 1989) and the Revised NEO Personality Inventory (Costa & McCrae, 1992). Results indicate that personality traits…

  7. Hardiness as a mediator between perceived stress and happiness in nurses.

    Science.gov (United States)

    Abdollahi, A; Abu Talib, M; Yaacob, S N; Ismail, Z

    2014-01-01

    The relevance of the study of happiness and stress in nurses has been emphasized. In this sense, the intelligent use of hardiness is enable nurses to cope better with stress and contribute to being happier. This study aimed to examine the relationship among hardiness, perceived stress, and happiness in nurses. Moreover, we examined the mediator role of hardiness on the relationship between perceived stress and happiness in nurses. Our study revealed that hardi-attitude nurses evaluate situations as less stressful which results in a higher happiness. This study showed hardiness as being a protective factor against perceived stress and a facilitating factor for happiness in nurses. The findings could be important in training future nurses so that hardiness can be imparted, thereby giving them the ability to control their stress. Nursing is a stressful occupation with high levels of stress within the health professions. Given that hardiness is an important construct to enable nurses to cope better with stress and contribute to being happier; therefore, it is necessary we advance our knowledge about the aetiology of happiness, especially the role of hardiness in decreasing stress levels and increasing happiness. The present study sought to investigate the role of hardiness as a mediator between perceived stress and happiness. The participants, comprising 252 nurses from six private hospitals in Tehran, completed the Personal Views Survey, the Perceived Stress Scale, and the Oxford Happiness Inventory. Structural Equation Modelling (SEM) was used to analyse the data and answer the research hypotheses. As expected, hardiness partially mediated between perceived stress and happiness among nurses, and nurses with low levels of perceived stress were more likely to report greater hardiness and happiness. In addition, nurses with high levels of hardiness were more likely to report happiness. This study showed hardiness as being a protective factor against perceived stress and

  8. Psychological well-being of Canadian Forces officer candidates: the unique roles of hardiness and personality.

    Science.gov (United States)

    Skomorovsky, Alla; Sudom, Kerry A

    2011-04-01

    Previous research has found that individual characteristics play an important role in psychological wellbeing and perception of stress. Although the Five Factor Model of personality has been found to consistently predict psychological well-being in the general population and among military personnel, hardiness has also been found to be a predictor of well-being. This study examined the unique role of hardiness, above that of personality, in the well-being and stress perceptions of Canadian Forces officer candidates undergoing basic training. The results of the study were consistent with those of previous research, suggesting that military hardiness is an important predictor of well-being and stress perceptions. Furthermore, hardiness was related to all domains of psychological well-being and training perceptions when the Five Factor Model of personality was statistically controlled. These findings demonstrate that hardiness and personality constitute 2 different constructs, both of which have significant contributions to well-being.

  9. CRAB NEBULA: FIVE-YEAR OBSERVATION WITH ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Bartoli, B.; Catalanotti, S.; D' Ettorre Piazzoli, B.; Di Girolamo, T. [Dipartimento di Fisica dell' Università di Napoli " Federico II," Complesso Universitario di Monte Sant' Angelo, via Cinthia, I-80126 Napoli (Italy); Bernardini, P.; D' Amone, A.; De Mitri, I. [Dipartimento Matematica e Fisica " Ennio De Giorgi," Università del Salento, via per Arnesano, I-73100 Lecce (Italy); Bi, X. J.; Cao, Z.; Chen, S. Z. [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing (China); Branchini, P.; Budano, A. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, via della Vasca Navale 84, I-00146 Roma (Italy); Camarri, P. [Dipartimento di Fisica dell' Università di Roma " Tor Vergata," via della Ricerca Scientifica 1, I-00133 Roma (Italy); Cardarelli, R.; Di Sciascio, G. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata, via della Ricerca Scientifica 1, I-00133 Roma (Italy); Chen, T. L.; Danzengluobu [Tibet University, 850000 Lhasa, Xizang (China); Creti, P. [Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, via per Arnesano, I-73100 Lecce (Italy); Cui, S. W. [Hebei Normal University, Shijiazhuang 050016 Hebei (China); Dai, B. Z., E-mail: vernetto@to.infn.it [Yunnan University, 2 North Cuihu Rd., 650091 Kunming, Yunnan (China); Collaboration: ARGO-YBJ Collaboration; and others

    2015-01-10

    The ARGO-YBJ air shower detector monitored the Crab Nebula gamma-ray emission from 2007 November to 2013 February. The integrated signal, consisting of ∼3.3 × 10{sup 5} events, reached the statistical significance of 21.1 standard deviations. The obtained energy spectrum in the energy range 0.3-20 TeV can be described by a power law function dN/dE = I {sub 0} (E/2 TeV){sup –α}, with a flux normalization I {sub 0} = (5.2 ± 0.2) × 10{sup –12} photons cm{sup –2} s{sup –1} TeV{sup –1} and α = 2.63 ± 0.05, corresponding to an integrated flux above 1 TeV of 1.97 × 10{sup –11} photons cm{sup –2} s{sup –1}. The systematic error is estimated to be less than 30% for the flux normalization and 0.06 for the spectral index. Assuming a power law spectrum with an exponential cutoff dN/dE = I {sub 0} (E/2 TeV){sup –α} exp (–E/E {sub cut}), the lower limit of the cutoff energy E {sub cut} is 12 TeV, at 90% confidence level. Our extended data set allows the study of the TeV emission over long timescales. Over five years, the light curve of the Crab Nebula in 200-day bins is compatible with a steady emission with a probability of 7.3 × 10{sup –2}. A correlated analysis with Fermi-LAT data over ∼4.5 yr using the light curves of the two experiments gives a Pearson correlation coefficient r = 0.56 ± 0.22. Concerning flux variations on timescales of days, a ''blind'' search for flares with a duration of 1-15 days gives no excess with a significance higher than four standard deviations. The average rate measured by ARGO-YBJ during the three most powerful flares detected by Fermi-LAT is 205 ± 91 photons day{sup –1}, consistent with the average value of 137 ± 10 day{sup –1}.

  10. Accuracy of ARGOS locations of Pinnipeds at-sea estimated using Fastloc GPS.

    Directory of Open Access Journals (Sweden)

    Daniel P Costa

    Full Text Available BACKGROUND: ARGOS satellite telemetry is one of the most widely used methods to track the movements of free-ranging marine and terrestrial animals and is fundamental to studies of foraging ecology, migratory behavior and habitat-use. ARGOS location estimates do not include complete error estimations, and for many marine organisms, the most commonly acquired locations (Location Class 0, A, B, or Z are provided with no declared error estimate. METHODOLOGY/PRINCIPAL FINDINGS: We compared the accuracy of ARGOS Locations to those obtained using Fastloc GPS from the same electronic tags on five species of pinnipeds: 9 California sea lions (Zalophus californianus, 4 Galapagos sea lions (Zalophus wollebaeki, 6 Cape fur seals (Arctocephalus pusillus pusillus, 3 Australian fur seals (A. p. doriferus and 5 northern elephant seals (Mirounga angustirostris. These species encompass a range of marine habitats (highly pelagic vs coastal, diving behaviors (mean dive durations 2-21 min and range of latitudes (equator to temperate. A total of 7,318 ARGOS positions and 27,046 GPS positions were collected. Of these, 1,105 ARGOS positions were obtained within five minutes of a GPS position and were used for comparison. The 68(th percentile ARGOS location errors as measured in this study were LC-3 0.49 km, LC-2 1.01 km, LC-1 1.20 km, LC-0 4.18 km, LC-A 6.19 km, LC-B 10.28 km. CONCLUSIONS/SIGNIFICANCE: The ARGOS errors measured here are greater than those provided by ARGOS, but within the range of other studies. The error was non-normally distributed with each LC highly right-skewed. Locations of species that make short duration dives and spend extended periods on the surface (sea lions and fur seals had less error than species like elephant seals that spend more time underwater and have shorter surface intervals. Supplemental data (S1 are provided allowing the creation of density distributions that can be used in a variety of filtering algorithms to improve the

  11. The Application of ARGO Data to the Global Ocean Data Assimilation Operational System of NCC

    Institute of Scientific and Technical Information of China (English)

    LIU Yimin; ZHANG Renhe; YIN Yonghong; NIU Tao

    2005-01-01

    In this paper, we have preliminarily studied the application of ARGO (Array for Real-time Geostrophic Oceanography) data to the Global Ocean Data Assimilation System of National Climate Center of China (NCC-GODAS), which mainly contains 4 sub-systems such as data preprocessing, real-time wind stress calculating, variational analysis and interpolating, and ocean dynamic model. For the sake of using ARGO data, the relevant adjustment and improvement have been made at the corresponding aspects in the subsystems.Using the observation data from 1981 to 2003 including the ARGO data of 2001 to July. 2003, we have performed a series of numerical experiments on this system. Comparing with the corresponding results of NCEP, It is illustrated that using ARGO data can improve the results of NCC-GODAS in the region of the Middle Pacific, for instance SST, SSTA (SST anomalies), Nino index, sea sub-surface temperature,etc. Furthermore, it is obtained that NCC-GODAS benefits from ARGO data in the other regions such as Atlantic Ocean, Indian Ocean, and extratropical Pacific Ocean much more than in the tropical Pacific.

  12. Status of LHAASO updates from ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Cao, Zhen

    2014-04-01

    The Large High Altitude Air Shower Observatory (LHAASO) is a multipurpose project with a complex detector array for high energy gamma ray and cosmic ray detection. The array of 1 km{sup 2} is composed of five types of detectors to measure shower arrival direction, total number of secondary particles, muon content, Cherenkov image and high energy gamma rays near shower core, respectively. The main scientific goals are (1) searching for galactic cosmic ray origins by extensive spectroscopy investigations of gamma ray sources above 30 TeV; (2) all sky survey for gamma ray sources at energies higher than 300 GeV; (3) energy spectrum and composition measurements of cosmic rays over a wide range covering knees with fixed energy scale and known fluxes for all species at the low energy end. In this paper, the progress on relevant detector developments is reported, including constructions of prototype detectors at Tibet site and coincidence operation with the ARGO-YBJ resistive plat chamber full coverage array at 4300 m a.s.l. The energy spectrum of cosmic ray hydrogen and Helium nuclei up to 0.8 PeV is reported as the first piece of physics measurements by the LHAASO experiment.

  13. Crab Nebula: five-year observation with ARGO-YBJ

    CERN Document Server

    ,

    2015-01-01

    The ARGO-YBJ air shower detector monitored the Crab Nebula gamma ray emission from 2007 November to 2013 February. The integrated signal, consisting of $\\sim$3.3 $\\times$ 10$^5$ events,reached the statistical significance of 21.1 standard deviations. The obtained energy spectrum in the energy range 0.3-20 TeV can be described by a power law function dN/dE = I$_0$ (E / 2 TeV)$^{-\\alpha}$, with a flux normalization I$_0$ = (5.2 $\\pm$ 0.2) $\\times$ 10$^{-12}$ photons cm$^{-2}$ s$^{-1}$ TeV$^{-1}$ and $\\alpha$ = 2.63 $\\pm$ 0.05, corresponding to an integrated flux above 1 TeV of 1.97 $\\times$ 10$^{-11}$ photons cm$^{-2}$ s$^{-1}$. The systematic error is estimated to be less than 30$\\%$ for the flux normalization and 0.06 for the spectral index. Assuming a power law spectrum with an exponential cutoff dN/dE = I$_0$ (E / 2 TeV)$^{-\\alpha}$ $\\exp$ (-E / E$_{cut}$), the lower limit of the cutoff energy E$_{cut}$ is 12 TeV, at 90$\\%$ confidence level. Our extended dataset allows the study of the TeV emission over lon...

  14. Synthesis of the 18th ArgoSpine Symposium.

    Science.gov (United States)

    Kehr, P; Graftiaux, A; Mazel, C; Richard, N

    2014-07-01

    The subject of this 18th Symposium of ArgoSpine Association was the space of the intervertebral discs. Space of the intervertebral discs must be initially defined anatomically and histologically. A geometrical rebuilding in 3D is possible and must allow a modeling of the intervertebral discs. The physiology of the disc, its nutrition, must be known, in particular that of the center of the disc. The disc constitutes the base of the balance of the rachis, balances which can be only dynamic. The degenerative cascade by the loss of the proteoglycans involves the loss of the biomechanical properties of the disc. The consequences of this degenerative cascade are the base of all the vertebral pathology of origin of the intervertebral discs and even of the posterior articular facets. The origin of the pains and the diagnosis, especially at the lumbar level, are studied by the speakers. Traumatology of the intervertebral discs is the object of a particular chapter. Finally, the average therapeutic ones, that is, decompression of the intervertebral discs, fusion of the intervertebral discs, the recovery of mobility of the intervertebral discs, and the capacity of restoration of space of the intervertebral discs, are studied in detail. The infection of the disc is studied in detail.

  15. Weighted Composition Operators from Hardy Spaces into Logarithmic Bloch Spaces

    Directory of Open Access Journals (Sweden)

    Flavia Colonna

    2012-01-01

    Full Text Available The logarithmic Bloch space Blog⁡ is the Banach space of analytic functions on the open unit disk 𝔻 whose elements f satisfy the condition ∥f∥=sup⁡z∈𝔻(1-|z|2log⁡  (2/(1-|z|2|f'(z|<∞. In this work we characterize the bounded and the compact weighted composition operators from the Hardy space Hp (with 1≤p≤∞ into the logarithmic Bloch space. We also provide boundedness and compactness criteria for the weighted composition operator mapping Hp into the little logarithmic Bloch space defined as the subspace of Blog⁡ consisting of the functions f such that lim⁡|z|→1(1-|z|2log⁡  (2/(1-|z|2|f'(z|=0.

  16. CONVERGENCE OF DOUBLE WALSH-FOURIER SERIES AND HARDY SPACES

    Institute of Scientific and Technical Information of China (English)

    Ferenc Weisz

    2001-01-01

    It is proved that the maximal operator of the Marczinkieuicz-Fejér means of a double Walsh-Fourier series is bounded from the two-dimensional dyadic martingale Hardy space Hp to Lp(2/3<p<∞) and is of weak type (1,1). As a consequence we obtain that the Marczinkiewicz-Fejér means of a function f ∈ L1 converge a.e. to the function in question. Moreover, we prove that these means are uniformly bounded on Hp whenever 2/3<p<∞. Thus, in case f ∈ H p, the Marczinkiewicz-Fejér means converge to f in Hp norm.The same results are proved for the conjugate means, too.

  17. Cold hardiness increases with age in juvenile Rhododendron populations

    Directory of Open Access Journals (Sweden)

    Rajeev eArora

    2014-10-01

    Full Text Available Winter survival in woody plants is controlled by environmental and genetic factors that affect the plant's ability to cold acclimate. Because woody perennials are long-lived and often have a prolonged juvenile (pre-flowering phase, it is conceivable that both chronological and physiological age factors influence adaptive traits such as stress tolerance. This study investigated annual cold hardiness (CH changes in several hybrid Rhododendron populations based on Tmax, an estimate of the maximum rate of freezing injury (ion leakage in cold-acclimated leaves from juvenile progeny. Data from F2 and backcross populations derived from R. catawbiense and R. fortunei parents indicated significant annual increases in Tmax ranging from 3.7 to to 6.4 C as the seedlings aged from 3 to 5 years old. A similar yearly increase (6.7° C was observed in comparisons of 1- and 2-year-old F1 progenies from a R. catawbiense x R. dichroanthum cross. In contrast, CH of the mature parent plants (> 10 years old did not change significantly over the same evaluation period. In leaf samples from a natural population of R. maximum, CH evaluations over two years resulted in an average Tmax value for juvenile 2- to 3- year- old plants that was 9.2 C lower than the average for mature (~30 years old plants. . A reduction in CH was also observed in three hybrid rhododendron cultivars clonally propagated by rooted cuttings (ramets - Tmax of 4-year-old ramets was significantly lower than the Tmax estimates for the 30- to 40-year-old source plants (ortets. In both the wild R. maximum population and the hybrid cultivar group, higher accumulation of a cold-acclimation responsive 25kDa leaf dehydrin was associated with older plants and higher CH. The feasibility of identifying hardy phenotypes at juvenile period and research implications of age-dependent changes in CH are discussed.

  18. Stress and illness in low-income women: the roles of hardiness, John Henryism, and race.

    Science.gov (United States)

    Williams, D; Lawler, K A

    2001-01-01

    This study examines the stress-illness relationship in a biracial group (African-American and Caucasian-American) of low-income women. Two personality constructs, hardiness and John Henryism, were studied for their possible moderating influences on the stress-illness relationship. One hundred women, with family incomes below the poverty line, completed questionnaires of stress, illness, hardiness, and John Henryism. Hierarchical regression models indicated that hardiness moderated the stress-illness relationship, with high stress, low hardy women having higher levels of illness. In addition, race also moderated the effect of stress, with high stress, Caucasian women having higher levels of illness. However, John Henryism had no effect on stress-related illness in these low-income women. Analyses of additional stress measures indicated that hardy women perceive their external environments as less stressful, although high and low hardy women have similar levels of network stress. Correlational analyses indicated that life-event stress, network stress and low-income concerns were all associated with illness scores. Thus, a range of stress measures are linked to physical illness in low-income women; furthermore, hardiness and being African-American both buffered the effects of stress on illness.

  19. Highlights of the ARGO-YBJ Experiment at 4,300 m a.s.l

    Energy Technology Data Exchange (ETDEWEB)

    Cao, Zhen, E-mail: caozh@ihep.ac.cn [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)

    2014-07-01

    The ARGO-YBJ experiment in Tibet, China has been operated to survey the northern sky for gamma ray sources, transient or steady, for nearly 6 years. Many astrophysics observational results will be highlighted in this paper, such as the sky survey results, extended source observation, diffuse gamma rays from the galactic plane, and emission mechanism of AGNs and their flares. As the unique detector for EAS with a continuously sensitive area of 5,600 m2, the ARGO-YBJ array catches almost all particles in the central part of showers. The high-quality data set for showers above few TeV has been used for cosmic ray measurements such as the energy spectrum and composition. All those results are summarized here. As one of the next generation ground-based high-altitude air shower detector, LHAASO is briefly introduced as the successor of ARGO-YBJ in the end of the paper. (author)

  20. Biogeochemical-Argo: achievements, challenges for the future and potential synergies with other components of ocean observation systems

    Science.gov (United States)

    Claustre, Hervé; Johnson, Ken

    2017-04-01

    The recently launched Biogeochemical-Argo (BGC-Argo) program aims at developing a global network of biogeochemical sensors on Argo profiling floats for acquiring long-term high-quality time-series of oceanic properties. BGC-Argo is in particular poised to address a number of challenges in ocean science (e.g. hypoxia, carbon uptake, ocean acidification, biological-carbon pump and phytoplankton communities), topics that are difficult, if not impossible, to address with our present observing assets. Presently six variables are considered as core BGC-Argo variables (O2, NO3, pH, Chla, suspended particles and downwelling irradiance). Historically, BGC-Argo has been initiated through small-scale "showcase" projects progressively scaling up into regional case studies essentially addressing key biological pump-related questions in specific regions (e.g. sub-tropical gyres, North Atlantic, Southern Ocean). Now BGC-Argo is transitioning towards a global and sustained observation system thanks to progressive international coordination of national contributions and to increasingly mature and efficient data management and distribution systems. In this presentation, we will highlight a variety of results derived from BGC-Argo observations and encompassing a wide range of topics related to ocean biogeochemistry. Challenges for the future and long-term sustainability of the system will be addressed in particular with respect to maintaining a high-quality and interoperable dataset over long-term. Part of this can be achieved through a tight interaction with programs (e.g. GOSHIP) and their historical databases, which should constitute a corner stone to assess data quality. Example on the interplay between BGC-Argo and GlodapV2 databases will be particularly exemplified in this context. Furthermore, we will illustrate the potential synergies between synoptically measured surface satellite-quantities and their vertically resolved (BGC-Argo) counterparts into the development of 3D

  1. Sea surface freshening inferred from SMOS and ARGO salinity: impact of rain

    Directory of Open Access Journals (Sweden)

    J. Boutin

    2012-10-01

    Full Text Available The sea surface salinity (SSS measured from space by the Soil Moisture and Ocean Salinity (SMOS mission has recently been revisited by the European Space Agency first campaign reprocessing. We show that, with respect to the previous version, biases close to land and ice greatly decrease. The accuracy of SMOS SSS averaged over 10 days 100 × 100 km2 in the open ocean and estimated by comparison to ARGO SSS is on the order of 0.3–0.4 in tropical and subtropical regions and 0.5 in a cold region. The mean SSS −0.1 bias observed in the Tropical Pacific Ocean between 5° N and 15° N, relatively to other regions, is suppressed when SMOS rainy events, as detected on SSMIs rain rates, are removed from the SMOS-ARGO comparisons. The SMOS freshening is linearly correlated to SSMIs rain rate with a slope estimated to −0.14 mm−1 h, after correction for rain atmospheric contribution. This tendency is the signature of the temporal SSS variability between the time of SMOS and ARGO measurements linked to rain variability and of the vertical salinity stratification between the first centimeter of the sea surface layer sampled by SMOS and the 5 m depth sampled by ARGO. However, given that the whole set of collocations includes situations with rainy ARGO measurements collocated with non rainy SMOS measurements, the mean −0.1 bias and the negative skewness of the statistical distribution of SMOS minus ARGO SSS difference are very likely the mean signature of the vertical salinity stratification. In the future, the analysis of ongoing in situ salinity measurements in the top 50 cm of the sea surface and of Aquarius satellite SSS are expected to provide complementary information about the sea surface salinity stratification.

  2. Outer measures and weak type estimates of Hardy-Littlewood maximal operators

    Directory of Open Access Journals (Sweden)

    Terasawa Yutaka

    2006-01-01

    Full Text Available We will introduce the times modified centered and uncentered Hardy-Littlewood maximal operators on nonhomogeneous spaces for . We will prove that the times modified centered Hardy-Littlewood maximal operator is weak type bounded with constant when if the Radon measure of the space has "continuity" in some sense. In the proof, we will use the outer measure associated with the Radon measure. We will also prove other results of Hardy-Littlewood maximal operators on homogeneous spaces and on the real line by using outer measures.

  3. Intraseasonal Oscillation in Global Ocean Temperature Inferred from Argo

    Institute of Scientific and Technical Information of China (English)

    HU Ruijin; WEI Meng

    2013-01-01

    The intraseasonal oscillation (ISO; 14-97-day periods) of temperature in the upper 2000 m of the global ocean was studied based on Argo observations from 2003-2008.It is shown that near the surface the ISO existed mainly in a band east of 60°E,between 10°S and 10°N,and the region around the Antarctic Circumpolar Current (ACC).At other levels analyzed,the ISOs also existed in the regions of the Kuroshio,the Gulf Stream,the Indonesian throughflow,the Somalia current,and the subtropical countercurrent (STCC) of the North Pacific.The intraseasonal signals can be seen even at depths of about 2000 m in some regions of the global ocean.The largest amplitude of ISO appeared at the thermocline of the equatorial Pacific,Atlantic and Indian Ocean,with maximum standard deviation (STD) exceeding 1.2℃.The ACC,the Kuroshio,and the Gulf Stream regions all exhibited large STD for all levels analyzed.Especially at 1000 m,the largest STD appeared in the south and southeast of South Africa-a part of the ACC,with a maximum value that reached 0.5℃.The ratios of the intraseasonal temperature variance to the total variance at 1000 m and at the equator indicated that,in a considerable part of the global deep ocean,the ISO was dominant in the variations of temperature,since such a ratio exceeded even 50% there.A case study also confirmed the existence of the ISO in the deep ocean.These results provide useful information for the design of field observations in the global ocean.Analysis and discussion are also given for the mechanism of the ISO.

  4. Argo and other tidal structures around the milky way

    Directory of Open Access Journals (Sweden)

    Helio J. Rocha-Pinto

    2006-01-01

    Full Text Available Se realiz o una b usqueda de sobredensidades que pudieran estar asociadas con subestructuras en el halo gal actico en bajas latitudes a partir de una muestra de gigantes M de 2MASS. Bajo la hip otesis de que las poblaciones estelares en la V a L actea exterior deber an de estar distribuidas de manera m as o menos sim etrica, se utilizaron dos m etodos para identi car asimetr as en la distribuci on (l; b de gigantes M de 2MASS que pudieran ser indicios de sobredensidades estelares: (1 la veri caci on directa de simetr a en campos re ejados sobre varios c rculos mayores sim etricos hipot eticos en la Galaxia; y (2 la extracci on de un modelo gal actico sim etrico para la distribuci on de gigantes M a partir de la distribuci on observada. Si bien podemos con rmar varios de los aspectos reportados previamente de la corriente de marea Monoceros, un hallazgo mayor de nuestro trabajo es que el n ucleo aparente del sistema Monoceros no se localiza en Canis Major, como lo han sugerido otras exploraciones, sino con mayor probabilidad a mayor l, en la regi on de la antigua constelaci on Argo (actualmente Puppis, Vela y Carina. Adem as del extenso sistema Monoceros, identi camos varias otras sobredensidades de gigantes M, principalmente a mayores distancias. Algunas de ellas corresponden a sistemas encontrados previamente en Triangulo-Andr omeda y Perseo, mientras que la naturaleza de otros de menor signi cado permanece incierta o puede ser atribuida a asimetr as de primer plano de estrellas enanas M contaminantes.

  5. Boundedness of a class of weighted Hardy-Steklov averaging operators%一类加权Hardy-Steklov平均算子的有界性

    Institute of Scientific and Technical Information of China (English)

    郑庆玉; 张蕾

    2011-01-01

    The sufficient and necessary conditions of boundedness are given about the weights of a class of weighted Hardy-Steklov operators on both Lp and BMO spaces. Also, the corresponding operator norms are obtained, which provide a considerable important technical analysis in the study of predicting the future of a stock price.%给出一类加权Hardy-Steklov平均算子在Lp和BMO空间上关于权函数有界性的充要条件,并给出其算子范数,为Hardy-Stekdov平均算子在股票市场中应用提供重要理论分析工具.

  6. Hardy spaces on Ahlfors-regular quasi metric spaces a sharp theory

    CERN Document Server

    Alvarado, Ryan

    2015-01-01

    Systematically building an optimal theory, this monograph develops and explores several approaches to Hardy spaces in the setting of Ahlfors-regular quasi-metric spaces. The text is broadly divided into two main parts. The first part gives atomic, molecular, and grand maximal function characterizations of Hardy spaces and formulates sharp versions of basic analytical tools for quasi-metric spaces, such as a Lebesgue differentiation theorem with minimal demands on the underlying measure, a maximally smooth approximation to the identity and a Calderon-Zygmund decomposition for distributions. These results are of independent interest. The second part establishes very general criteria guaranteeing that a linear operator acts continuously from a Hardy space into a topological vector space, emphasizing the role of the action of the operator on atoms. Applications include the solvability of the Dirichlet problem for elliptic systems in the upper-half space with boundary data from Hardy spaces. The tools established ...

  7. The boundedness of intrinsic square functions on the weighted Herz-type Hardy spaces

    CERN Document Server

    Wang, Hua

    2010-01-01

    In this paper, the boundedness properties are obtained for intrinsic square functions including the Lusin area function, Littlewood-Paley $g$-function and $g^*_\\lambda$-function on the weighted Herz-type Hardy spaces.

  8. Hardy-Type Inequalities on H-Type Groups and Anisotropic Heisenberg Groups

    Institute of Scientific and Technical Information of China (English)

    Yongyang JIN

    2008-01-01

    The author obtains some weighted Hardy-type inequalities on H-type groups and anisotropic Heisenberg groups.These inequalities generalize some recent results due to N.Garofalo,E.Lanconelli,I.Kombe and P.Niu et al.

  9. Harriet Hardy and the workers of Los Alamos: a campus-community historical investigation.

    Science.gov (United States)

    Silver, Ken; Bird, Rick; Smith, Alex; Valerio, Daniel; Romero, Hilario

    2014-11-01

    Harriet Hardy, protégé of Alice Hamilton, spent 1948 in the Health Division of Los Alamos Scientific Laboratory. The contemporary campaign for federal legislation to compensate nuclear workers brought to the fore living retirees in whose cases of occupational illness Hardy had a role in diagnosis or case management. A third case is documented in archival records. Methods of participatory action research were used to better document the cases and strategize in light of the evidence, thereby assisting the workers with compensation claims. Medical and neuropsychological exams of the mercury case were conducted. Hardy's diary entries and memoirs were interpreted in light of medicolegal documentation and workers' recollections. Through these participatory research activities, Harriet Hardy's role and influence both inside and outside the atomic weapons complex have been elucidated. An important lesson learned is the ongoing need for a system of protective medical evaluations for nuclear workers with complex chemical exposures.

  10. PERTURBATION METHODS IN SEMILINEAR ELLIPTIC PROBLEMS INVOLVING CRITICAL HARDY-SOBOLEV EXPONENT

    Institute of Scientific and Technical Information of China (English)

    蓝永艺; 唐春雷

    2014-01-01

    In this article, we deal with a class of semilinear elliptic equations which are perturbations of the problems with the critical Hardy-Sobolev exponent. Some existence results are given via an abstract perturbation method in critical point theory.

  11. Subject–Motion Correction in HARDI Acquisitions: Choices and Consequences

    Science.gov (United States)

    Elhabian, Shireen; Gur, Yaniv; Vachet, Clement; Piven, Joseph; Styner, Martin; Leppert, Ilana R.; Pike, G. Bruce; Gerig, Guido

    2014-01-01

    Diffusion-weighted imaging (DWI) is known to be prone to artifacts related to motion originating from subject movement, cardiac pulsation, and breathing, but also to mechanical issues such as table vibrations. Given the necessity for rigorous quality control and motion correction, users are often left to use simple heuristics to select correction schemes, which involves simple qualitative viewing of the set of DWI data, or the selection of transformation parameter thresholds for detection of motion outliers. The scientific community offers strong theoretical and experimental work on noise reduction and orientation distribution function (ODF) reconstruction techniques for HARDI data, where post-acquisition motion correction is widely performed, e.g., using the open-source DTIprep software (1), FSL (the FMRIB Software Library) (2), or TORTOISE (3). Nonetheless, effects and consequences of the selection of motion correction schemes on the final analysis, and the eventual risk of introducing confounding factors when comparing populations, are much less known and far beyond simple intuitive guessing. Hence, standard users lack clear guidelines and recommendations in practical settings. This paper reports a comprehensive evaluation framework to systematically assess the outcome of different motion correction choices commonly used by the scientific community on different DWI-derived measures. We make use of human brain HARDI data from a well-controlled motion experiment to simulate various degrees of motion corruption and noise contamination. Choices for correction include exclusion/scrubbing or registration of motion corrupted directions with different choices of interpolation, as well as the option of interpolation of all directions. The comparative evaluation is based on a study of the impact of motion correction using four metrics that quantify (1) similarity of fiber orientation distribution functions (fODFs), (2) deviation of local fiber orientations, (3) global

  12. Hörmander multipliers on two-dimensional dyadic Hardy spaces

    Science.gov (United States)

    Daly, J.; Fridli, S.

    2008-12-01

    In this paper we are interested in conditions on the coefficients of a two-dimensional Walsh multiplier operator that imply the operator is bounded on certain of the Hardy type spaces Hp, 0Dokl. Akad. Nauk SSSR 109 (1956) 701-703; S.G. Mihlin, Multidimensional Singular Integrals and Integral Equations, Pergamon Press, 1965]. In this paper we extend these results to the two-dimensional dyadic Hardy spaces.

  13. A Hardy Inequality with Remainder Terms in the Heisenberg Group and the Weighted Eigenvalue Problem

    Directory of Open Access Journals (Sweden)

    Dou Jingbo

    2007-01-01

    Full Text Available Based on properties of vector fields, we prove Hardy inequalities with remainder terms in the Heisenberg group and a compact embedding in weighted Sobolev spaces. The best constants in Hardy inequalities are determined. Then we discuss the existence of solutions for the nonlinear eigenvalue problems in the Heisenberg group with weights for the -sub-Laplacian. The asymptotic behaviour, simplicity, and isolation of the first eigenvalue are also considered.

  14. A Hardy Inequality with Remainder Terms in the Heisenberg Group and the Weighted Eigenvalue Problem

    Directory of Open Access Journals (Sweden)

    Zixia Yuan

    2007-12-01

    Full Text Available Based on properties of vector fields, we prove Hardy inequalities with remainder terms in the Heisenberg group and a compact embedding in weighted Sobolev spaces. The best constants in Hardy inequalities are determined. Then we discuss the existence of solutions for the nonlinear eigenvalue problems in the Heisenberg group with weights for the p-sub-Laplacian. The asymptotic behaviour, simplicity, and isolation of the first eigenvalue are also considered.

  15. Ergodic Actions of Convergent Fuchsian groups on quotients of the noncommutative Hardy algebras

    CERN Document Server

    Arias, Alvaro

    2010-01-01

    We establish that particular quotients of the non-commutative Hardy algebras carry ergodic actions of convergent discrete subgroups of the group $\\operatorname*{SU}(n,1)$ of automorphisms of the unit ball in $\\mathbb{C}% ^{n}$. To do so, we provide a mean to compute the spectra of quotients of noncommutative Hardy algebra and characterize their automorphisms in term of biholomorphic maps of the unit ball in $\\mathbb{C}^{n}$.

  16. New Hardy Spaces Associated with Some Anisotropic Herz Spaces and Their Applications

    Institute of Scientific and Technical Information of China (English)

    Yong DING; Sen Hua LAN; Shan Zhen LU

    2008-01-01

    In this paper, a class of anisotropic Herz-type Hardy spaces associated with a non-isotropic dilation on R nare introduced, and the central atomic and molecular decomposition characterizations of those spaces are established. As some applications of the decomposition theory, the authors study the interpolation problem and the boundedness of the central δ-Calderon-Zygmund operators on the anisotropic Herz-type Hardy spaces.

  17. 一个对偶的Hardy-Hilbert不等式及其推广%A Dual Hardy-Hilbert's Inequality and Generalizations

    Institute of Scientific and Technical Information of China (English)

    杨必成

    2006-01-01

    This paper gives a dual Hardy-Hilbert's inequality with a best constant factor,which is a new extension of Hilbert's inequality with(p,q)-parameter form. We also consider its more extended form and an equivalent inequality with a single parameter.%本文给出一个对偶的具有最佳常数因子的Hardy-Hilbert不等式,它是Hilbert不等式的具有(p,g)-参数形式的新推广.还考虑了它的更为推广的单参数形式及一个等价不等式.

  18. Argos: Internacionalización en un entorno de conflicto armado Argos: Internacionalización en un entorno de conflicto armado*

    Directory of Open Access Journals (Sweden)

    Juan David Penagos Tascón

    2008-12-01

    Full Text Available This case study illustrates how Argos achieved to become one of the largest cement and concrete suppliers of Latin America, in spite of the fact that some of its production facilities are located in armed conflict areas. For that reason, the company implemented various corporate social responsibility strategies to overcome the difficulties of operating in these areas. These strategies contributed to the consolidation of the company’s operations under a single juridical and administrative entity, and facilitated the internationalization process to Central America, the Caribbean and the United States.Este caso de estudio empresarial muestra cómo la compañía Argos logró convertirseen uno de los proveedores de cemento y concreto más grandes de Latinoamérica,a pesar de que algunas de sus plantas productoras se encontraban ubicadas enzonas de conflicto armado, razón por la cual se desarrollaron diferentes iniciativasde responsabilidad social corporativa que permitieron operar en estas zonas.Garantizada la continuidad del negocio, las autoridades de Argos decidenconsolidar todas sus operaciones en una sola razón jurídica y administrativa yllevar a la empresa a un proceso de internacionalización en Centroamérica, Caribey Estados Unidos.

  19. Tolerance to multiple climate stressors: A case study of Douglas-fir drought and cold hardiness

    Science.gov (United States)

    Bansal, Sheel; Harrington, Constance A; St. Clair, John Bradley

    2016-01-01

    Summary: 1. Drought and freeze events are two of the most common forms of climate extremes which result in tree damage or death, and the frequency and intensity of both stressors may increase with climate change. Few studies have examined natural covariation in stress tolerance traits to cope with multiple stressors among wild plant populations. 2. We assessed the capacity of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii), an ecologically and economically important species in the northwestern USA, to tolerate both drought and cold stress on 35 populations grown in common gardens. We used principal components analysis to combine drought and cold hardiness trait data into generalized stress hardiness traits to model geographic variation in hardiness as a function of climate across the Douglas-fir range. 3. Drought and cold hardiness converged among populations along winter temperature gradients and diverged along summer precipitation gradients. Populations originating in regions with cold winters had relatively high tolerance to both drought and cold stress, which is likely due to overlapping adaptations for coping with winter desiccation. Populations from regions with dry summers had increased drought hardiness but reduced cold hardiness, suggesting a trade-off in tolerance mechanisms. 4. Our findings highlight the necessity to look beyond bivariate trait–climate relationships and instead consider multiple traits and climate variables to effectively model and manage for the impacts of climate change on widespread species.

  20. The effect of health value and ethnicity on the relationship between hardiness and health behaviors.

    Science.gov (United States)

    Harris, Shanette M

    2004-04-01

    Associations among hardiness, health value, and health protective behaviors were examined as a function of ethnicity among 80 African American and 100 European American college students. The role of health value as moderator versus mediator in the hardiness-health behavior link was explored. Racial differences in correlations among hardiness, control, and commitment were found, with stronger relations for African American than European Americans. Moderate positive relations between hardiness, control, commitment, and health value for African American, as contrasted with weak relations between commitment and health value for European Americans, were also shown. A partial mediational effect for health value with personal distress and moderator effects for health value with personal distress and health habits were found for African American only. Race predicted hardiness variables, tobacco and alcohol use, personal distress, and health habits beyond what was accounted for by occupation and income. The ramifications of these data with regard to future studies on hardiness, health value, and health behaviors for African American are discussed.

  1. Frost hardiness of tree species is independent of phenology and macroclimatic niche

    Indian Academy of Sciences (India)

    M Hofmann; H Bruelheide

    2015-03-01

    The differences in timing in bud burst between species have been interpreted as an adaptation to late frost events in spring. Thus, it has been suggested that the degree of frost susceptibility of leaves is species-specific and depends on the species’ phenology and geographic distribution range. To test for relationships between frost tolerance and phenology as well as between frost tolerance and distribution range across Central European tree species, we studied the frost hardiness of closed buds before bud burst and of freshly opened buds at the time of bud burst. We hypothesized that species with early bud burst and species distributed in eastern and northern areas were more frost tolerant than species with late bud burst and species distributed in western and southern areas. Frost hardiness was estimated by exposing twigs to 11 frost temperatures between −4°C and −80°C and by assessing tissue damage by the electrolyte leakage method. In contrast to our hypotheses, neither frost hardiness of closed buds nor frost hardiness of freshly opened buds were related to any variable describing species’ macroclimatic niche. Furthermore, frost hardiness of freshly opened buds did not differ among species. Thus, the investigated species with early bud burst take higher risks of frost damage than the species with late bud bursts. These findings indicate that frost hardiness might not play the key role in limiting the geographic distribution ranges previously anticipated.

  2. Hardiness Mediates Stress and Impact Level in ED Nurses Who Experienced a Violent Event.

    Science.gov (United States)

    Park, Jin Hee; Lee, Eun Nam; Kong, Kyung Ran; Jang, Moon Jung

    2017-06-01

    This secondary analysis examined the mediating effect of hardiness between stress and impact level in ED nurses who experienced a violent event. This correlational study was conducted from June to August 2014. We used the visual analog scale to measure stress level, the Impact of Event Scale-Revised to measure impact level after the violent event, and the Dispositional Resilience Scale to measure hardiness. We then analyzed mediating effects with the Sobel test. Data were collected in 31 emergency medical centers located in B city in Korea. Data from 321 ED nurses who experienced a violent event were analyzed. Most nurses (91.9%) were women, with a mean age of 28.73 years. The main outcome measure was the mediating effect of hardiness between stress and impact level after ED nurses experienced violence. We found that both violence-related stress (B = 0.22, P event. Based on results of a Sobel test, hardiness partially mediated the relationship between violence-related stress and impact level from a violent event (Z = 2.03, P = .044). Hardiness had an effect on reducing the impact level of ED nurses who had experienced a violent event and had a mediating role in mitigating their stress. Therefore, we recommend the development of an intervention program that emphasizes the improvement of hardiness in ED nurses. Copyright © 2017 Emergency Nurses Association. Published by Elsevier Inc. All rights reserved.

  3. Measurement of the angular resolution of the ARGO-YBJ detector

    CERN Document Server

    Di Sciascio, G

    2007-01-01

    The ARGO-YBJ experiment is a full coverage EAS-array installed at the YangBaJing Cosmic Ray Laboratory (4300 m a.s.l., Tibet, P.R. China). We present the results on the angular resolution measured with different methods with the full central carpet. The comparison of experimental results with MC simulations is discussed.

  4. Search for Gamma Ray Bursts with the Argo-YBJ Detector in Scaler Mode

    CERN Document Server

    Aielli, G

    2009-01-01

    We report on the search for Gamma Ray Bursts (GRBs) in the energy range 1-100 GeV in coincidence with the prompt emission detected by satellites using the Astrophysical Radiation with Ground-based Observatory at YangBaJing (ARGO-YBJ) air shower detector. Thanks to its mountain location (Yangbajing, Tibet, P.R. China, 4300 m a.s.l.), active surface (about 6700 m**2 of Resistive Plate Chambers), and large field of view (about 2 sr, limited only by the atmospheric absorption), the ARGO-YBJ air shower detector is particularly suitable for the detection of unpredictable and short duration events such as GRBs. The search is carried out using the "single particle technique", i.e. counting all the particles hitting the detector without measurement of the energy and arrival direction of the primary gamma rays. Between 2004 December 17 and 2009 April 7, 81 GRBs detected by satellites occurred within the field of view of ARGO-YBJ (zenith angle 1 GeV counterpart in the ARGO-YBJ data finding no statistically significant e...

  5. Drift in salinity data from Argo profiling floats in the Sea of Japan

    Digital Repository Service at National Institute of Oceanography (India)

    Pankajakshan, T.; Bajish, C.C.; Behera, S.; Gopalakrishna, V.V.

    . The efficiency of this new method in finding out possible drift in the Argo salinity is demonstrated in the Sea of Japan (SOJ) by using the "near-linear" subsurface salinity structure of the SOJ. The new method is based on the time–space decorrelation scale...

  6. Design of the wavefront sensor unit of ARGOS, the LBT laser guide star system

    CERN Document Server

    Bonaglia, Marco

    2012-01-01

    ARGOS is the laser guide star ground layer adaptive optics system of the LBT. ARGOS is designed to bring a moderate but uniform reduction of the PSF size over a FoV as large as 4x4arcmin, allowing a significative increase of the science throughput of LUCI, the LBT NIR imager and MOS. ARGOS relays on 3 Rayleigh beacons to sense the lower layers of the atmosphere achieving almost 100% sky coverage. The ground layer AO correction is allowed by the 2 adaptive secondaries of the LBT. This PhD thesis first discusses a study based on numerical simulations and aimed to evaluate the performance of ARGOS. This work has been carried out using CAOS and representing in the code most of the features that characterize the system itself: as the laser beacon propagation in the atmosphere, the SH type wavefront sensing, the AO reconstruction and closed loop delays and the atmosphere tip-tilt sensing done using a NGS and a quad-cell type sensor. The results obtained in this study are in agreement and definitively confirm the pe...

  7. Üks suund, kaks vaadet / Tiit Land, Argo Ralja ; intervjueerinud Katrin Reimann

    Index Scriptorium Estoniae

    Land, Tiit, 1964-

    2012-01-01

    Intervjuu Tallinna Ülikooli rektori Tiit Landi ja Üliõpilaskonna juhatuse esimehe Argo Raljaga Tallinna Ülikooli iseloomustavatest märksõnadest möödunud aastal, positsioonist Eesti hariduses, ülikooli koostööst instituutide ja kolledžitega

  8. Improving ingestion dose modelling for the ARGOS and RODOS decision support systems: A Nordic Initiative

    DEFF Research Database (Denmark)

    Andersson, Kasper Grann; Nielsen, Sven Poul; Thørring, Håvard

    2011-01-01

    A Nordic work group under the NKS-B activity PARDNOR has revised the input parameters in the ECOSYS model that is incorporated for ingestion dose modelling in the ARGOS and RODOS decision support systems. The new parameterisation takes into account recent measurement data, and targets the model...

  9. Parametric improvement for the ingestion dose module of the European ARGOS and RODOS decision support systems

    DEFF Research Database (Denmark)

    Andersson, Kasper Grann; Nielsen, Sven Poul; Thørring, H.

    2011-01-01

    The European decision support systems ARGOS and RODOS rely on the ECOSYS model for prognoses of ingestion doses. ECOSYS needs an update of various parameter values to provide reliable estimates. This paper reports on some results of a Nordic initiative to derive parameter values that are specific...

  10. Aptychi from the Lower Cretaceous strata along the Río Argos (Caravaca, SE Spain)

    NARCIS (Netherlands)

    Vašícek, Z.; Hoedemaeker, Ph.J.

    1997-01-01

    The aptychi of the Berriasian to Barremian strata of the Río Argos succession near Caravaca (SE Spain) are described. One new subspecies is introduced, Lamellaptychus angulocostatus gracilicostatus, from the latest Hauterivian Ohmi Zone (ammonite zone). Like in the Eastern Alps also in Southern Spai

  11. Character Strengths and Hardiness of Australian Army Special Forces Applicants.

    Science.gov (United States)

    Gayton, Scott D; Kehoe, E James

    2015-08-01

    Australian Army Special Forces (SF) applicants (N = 95) were asked to rank themselves on 24 character strengths at the start of the selection process. Across all applicants, the character strength of integrity was most frequently assigned a top-four rank (45%), followed by team worker (41%), persistence (36%), and love of learning (25%). Successful applicants assigned a top-four rank to team worker significantly more often than unsuccessful applicants (65% versus 32%). The likelihood of passing when team worker was highly ranked (37.5%) was 2.6 times greater than without team worker listed in the top ranks (14.3%). Self-ratings of hardiness revealed no discernible differences between successful and unsuccessful applicants, either alone or in combination with the team worker rankings. These results were largely consistent with the results of a previous study with a cohort of applicants for a different Australian SF unit. Results are discussed with respect to their implications for enhancing the assessment of SF applicants. Reprint & Copyright © 2015 Association of Military Surgeons of the U.S.

  12. Temperature, salinity and dissolved oxygen profile data from globally distributed Argo profiling floats through the month of September 2016 for the Global Argo Data Repository, 1995-09-07 to 2016-09-30 (NODC Accession 0042682)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data represent all data collected from Argo profiling floats through the current month (September 2016). The NOAA National Centers for Environmental...

  13. Üliõpilaskonnas puhuvad uued tuuled / Mailis Ostra, Argo Raja, Monika Maljukov ... [jt.] ; intervjueerinud Tanel Saarmann

    Index Scriptorium Estoniae

    2010-01-01

    TLÜ üliõpilaskonna juhatuse valimistest. Intervjuu endise juhatuse esimehe Mailis Ostraga ja praeguse esimehe Argo Rajaga, endiste aseesimeeste Monika Maljukovi ja Heidi Türgiga ning praeguste aseesimeeste Helgi Sammelselja ja Triin Abilisega

  14. CRED SVP Drifting Buoy Argos_ID 35650 Swain's Atoll, American Samoa, 200202-200211 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 35650 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  15. CRED SVP Drifting Buoy Argos_ID 35647 Data Tutuila, American Samoa, 200202-200307 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 35647 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  16. CRED APEX Drifting Buoy Argos_ID 25333 Data in the NW Hawaiian Islands, 200110-200204 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED APEX drifter Argos_ID 25333 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. APEX drifter data files...

  17. CRED SVP Drifting Buoy Argos_ID 30147 Data Nihoa, Northwestern Hawaiian Islands, 200209-200501 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30147 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  18. CRED SVP Drifting Buoy Argos_ID 35648 Data Pago Pago, American Samoa, 200203-200204 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 35648 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  19. CRED SVP Drifting Buoy Argos_ID 30340 Data Kauai Channel, Main Hawaiian Islands, 200210-200409 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30340 was deployed in the region of Main Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  20. CRED APEX Drifting Buoy Argos_ID 25330 Data Maro Reef, Northwestern Hawaiian Islands, 200109-200201 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED APEX drifter Argos_ID 25330 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. APEX drifter data files...

  1. CRED SVP Drifting Buoy Argos_ID 29099 Data, Rota in the Marianas Archipelago, 200309-200402 (NODC Accession 0067473)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29099 was deployed in the region of Marianas Archipelago to assess ocean currents and sea surface temperature. SVP drifter data files...

  2. CRED SVP Drifting Buoy Argos_ID 52299 Data, Arakane in the Marianas Archipelago, 200509-200607 (NODC Accession 0067473)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 52299 was deployed in the region of the Marianas Archipelago to assess ocean currents and sea surface temperature. drifter data files...

  3. CRED SVP Drifting Buoy Argos_ID 30225 Data in the Northwestern Hawaiian Islands, 200209-200401 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30225 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  4. CRED SVP Drifting Buoy Argos_ID 29938 Data in the Northwestern Hawaiian Islands, 200209-200312 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29938 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  5. CRED SVP Drifting Buoy Argos_ID 24753 Data in American Samoa, 200307-200407 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24753 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  6. CRED SVP Drifting Buoy Argos_ID 44765 Data, Manua in the American Samoa, 200402-200406 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 44765 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  7. CRED SVP Drifting Buoy Argos_ID 24666 Data in the American Samoa, 200309-200503 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24666 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  8. CRED SVP Drifting Buoy Argos_ID 35646 Data in the American Samoa, 200202-200302 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 35646 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  9. Error attribution and validation of SMOS high-level salinity products with Argo data

    Science.gov (United States)

    Ballabrera, Joaquim

    2015-04-01

    In the context of the E-AIMS project (7FP Project No. 284391), the role and suggested improvements of the Argo array in the validation of SMOS sea surface salinity (SSS) have been investigated. Here, a summary of the main results is shown and discussed. The Argo array continues to be the sole component of the ocean observing system to provide routine observations of temperature and salinity profiles at global scale with a time sampling period of about ten days. The observations provided by an Argo profiler are publicly available a few days from being taken (Real Time Mode) after application of automatic quality control filters. Scientific quality data (Delayed Mode) is generated after a human supervised quality control. In this study, the highest quality, delayed mode, near-the-surface data are being used to validate the SSS Level 3 and Level 4 products generated by the SMOS Barcelona Expert Centre (http://cp34-bec.cmima.csic.es). The products being validated here are the weighted binned average (L3), an Optimal Interpolation (OI), and a data fused product exploiting the spatial variability of OSTIA SST. An Argo profile is considered if its quality flags of position and time are equal to one (good), two (probably good), five (value changes) or eight (value interpolated). However, temperature, salinity and pressure data are used only if their quality flags are equal to one (good). The uppermost (but deeper than 0.5 m) salinity measurement is taken as an approximation of the in-situ SSS, but only if the salinity profile allows a robust interpolation of the salinity at 7.5 m (this additional requirement is introduced to ensure that the salinity profile is properly sampled near the surface). At the moment of performing this study, the main drawbacks have been the lag in the Delayed Mode processing, and the lack of salinity observations in the first five meters below the ocean surface. While 5500 profiles in Delayed Mode were available for January 2011, about 1000 were

  10. Enhancing the use of Argos satellite data for home range and long distance migration studies of marine animals.

    Directory of Open Access Journals (Sweden)

    Xavier Hoenner

    Full Text Available Accurately quantifying animals' spatial utilisation is critical for conservation, but has long remained an elusive goal due to technological impediments. The Argos telemetry system has been extensively used to remotely track marine animals, however location estimates are characterised by substantial spatial error. State-space models (SSM constitute a robust statistical approach to refine Argos tracking data by accounting for observation errors and stochasticity in animal movement. Despite their wide use in ecology, few studies have thoroughly quantified the error associated with SSM predicted locations and no research has assessed their validity for describing animal movement behaviour. We compared home ranges and migratory pathways of seven hawksbill sea turtles (Eretmochelys imbricata estimated from (a highly accurate Fastloc GPS data and (b locations computed using common Argos data analytical approaches. Argos 68(th percentile error was 4 km for LC ≤ 0. Argos error structure was highly longitudinally skewed and was, for all LC, adequately modelled by a Student's t distribution. Both habitat use and migration routes were best recreated using SSM locations post-processed by re-adding good Argos positions (LC 1, 2 and 3 and filtering terrestrial points (mean distance to migratory tracks ± SD = 2.2 ± 2.4 km; mean home range overlap and error ratio = 92.2% and 285.6 respectively. This parsimonious and objective statistical procedure however still markedly overestimated true home range sizes, especially for animals exhibiting restricted movements. Post-processing SSM locations nonetheless constitutes the best analytical technique for remotely sensed Argos tracking data and we therefore recommend using this approach to rework historical Argos datasets for better estimation of animal spatial utilisation for research and evidence-based conservation purposes.

  11. Sea surface freshening inferred from SMOS and ARGO salinity: impact of rain

    Directory of Open Access Journals (Sweden)

    J. Boutin

    2013-02-01

    Full Text Available The sea surface salinity (SSS measured from space by the Soil Moisture and Ocean Salinity (SMOS mission has recently been revisited by the European Space Agency first campaign reprocessing. We show that, with respect to the previous version, biases close to land and ice greatly decrease. The accuracy of SMOS SSS averaged over 10 days, 100 × 100 km2 in the open ocean and estimated by comparison to ARGO (Array for Real-Time Geostrophic Oceanography SSS is on the order of 0.3–0.4 in tropical and subtropical regions and 0.5 in a cold region. The averaged negative SSS bias (−0.1 observed in the tropical Pacific Ocean between 5° N and 15° N, relatively to other regions, is suppressed when SMOS observations concomitant with rain events, as detected from SSM/Is (Special Sensor Microwave Imager rain rates, are removed from the SMOS–ARGO comparisons. The SMOS freshening is linearly correlated to SSM/Is rain rate with a slope estimated to −0.14 mm−1 h, after correction for rain atmospheric contribution. This tendency is the signature of the temporal SSS variability between the time of SMOS and ARGO measurements linked to rain variability and of the vertical salinity stratification between the first centimeter of the sea surface layer sampled by SMOS and the 5 m depth sampled by ARGO. However, given that the whole set of collocations includes situations with ARGO measurements concomitant with rain events collocated with SMOS measurements under no rain, the mean −0.1 bias and the negative skewness of the statistical distribution of SMOS minus ARGO SSS difference are very likely the mean signature of the vertical salinity stratification. In the future, the analysis of ongoing in situ salinity measurements in the top 50 cm of the sea surface and of Aquarius satellite SSS are expected to provide complementary information about the sea surface salinity stratification.

  12. Problem-solving skills appraisal mediates hardiness and suicidal ideation among malaysian undergraduate students.

    Directory of Open Access Journals (Sweden)

    Abbas Abdollahi

    Full Text Available Recent evidence suggests that suicidal ideation is increased among university students, it is essential to increase our knowledge concerning the etiology of suicidal ideation among university students. This study was conducted to examine the relationships between problem-solving skills appraisal, hardiness, and suicidal ideation among university students. In addition, this study was conducted to examine problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion as a potential mediator between hardiness and suicidal ideation.The participants consisted of 500 undergraduate students from Malaysian public universities.Structural Equation Modelling (SEM estimated that undergraduate students with lower hardiness, poor problem-solving confidence, external personal control of emotion, and avoiding style was associated with higher suicidal ideation. Problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion partially mediated the relationship between hardiness and suicidal ideation.These findings underline the importance of studying mediating processes that explain how hardiness affects suicidal ideation.

  13. Problem-Solving Skills Appraisal Mediates Hardiness and Suicidal Ideation among Malaysian Undergraduate Students

    Science.gov (United States)

    Abdollahi, Abbas; Talib, Mansor Abu; Yaacob, Siti Nor; Ismail, Zanariah

    2015-01-01

    Objectives Recent evidence suggests that suicidal ideation is increased among university students, it is essential to increase our knowledge concerning the etiology of suicidal ideation among university students. This study was conducted to examine the relationships between problem-solving skills appraisal, hardiness, and suicidal ideation among university students. In addition, this study was conducted to examine problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion) as a potential mediator between hardiness and suicidal ideation. Methods The participants consisted of 500 undergraduate students from Malaysian public universities. Results Structural Equation Modelling (SEM) estimated that undergraduate students with lower hardiness, poor problem-solving confidence, external personal control of emotion, and avoiding style was associated with higher suicidal ideation. Problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion) partially mediated the relationship between hardiness and suicidal ideation. Conclusion These findings underline the importance of studying mediating processes that explain how hardiness affects suicidal ideation. PMID:25830229

  14. Problem-solving skills appraisal mediates hardiness and suicidal ideation among malaysian undergraduate students.

    Science.gov (United States)

    Abdollahi, Abbas; Talib, Mansor Abu; Yaacob, Siti Nor; Ismail, Zanariah

    2015-01-01

    Recent evidence suggests that suicidal ideation is increased among university students, it is essential to increase our knowledge concerning the etiology of suicidal ideation among university students. This study was conducted to examine the relationships between problem-solving skills appraisal, hardiness, and suicidal ideation among university students. In addition, this study was conducted to examine problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion) as a potential mediator between hardiness and suicidal ideation. The participants consisted of 500 undergraduate students from Malaysian public universities. Structural Equation Modelling (SEM) estimated that undergraduate students with lower hardiness, poor problem-solving confidence, external personal control of emotion, and avoiding style was associated with higher suicidal ideation. Problem-solving skills appraisal (including the three components of problem-solving confidence, approach-avoidance style, and personal control of emotion) partially mediated the relationship between hardiness and suicidal ideation. These findings underline the importance of studying mediating processes that explain how hardiness affects suicidal ideation.

  15. Relationship between Hardiness and Marital Satisfaction in Women with Breast Cancer

    Directory of Open Access Journals (Sweden)

    Farideh Nabizadeh

    2016-09-01

    Full Text Available Background: When a couple confronts cancer, there is a major impact on their psychosocial life. Marital life and satisfaction with that are important factors in the quality of life of breast cancer patient. The aim of this research was to predict marital satisfaction based on hardiness in women with breast cancerMethods: A total of 100 women with breast cancer participated in this study and completed the Kobasa Personal View Survey and ENRICH (evaluation and nurturing relationship issues, communication, and happiness Marital Satisfaction Scale. The study was conducted in Rasol Akrm Hospital, Tehran, Iran. Descriptive statistics, correlation, and linear regression were used for data analysis.Results: The results showed a significant relationship between hardiness and marital satisfaction. Moreover, hardiness determined 13% of the variance of marital satisfaction.Conclusions: Hardiness as an efficient coping style in breast cancer is an important factor to increase perceived marital satisfaction in breast cancer. Therefore, healthcare professionals such as psycho-oncologists can promote resiliency in breast cancer patients by improving cognitive hardiness in their patients.

  16. Statistical inference for Hardy-Weinberg proportions in the presence of missing genotype information.

    Science.gov (United States)

    Graffelman, Jan; Sánchez, Milagros; Cook, Samantha; Moreno, Victor

    2013-01-01

    In genetic association studies, tests for Hardy-Weinberg proportions are often employed as a quality control checking procedure. Missing genotypes are typically discarded prior to testing. In this paper we show that inference for Hardy-Weinberg proportions can be biased when missing values are discarded. We propose to use multiple imputation of missing values in order to improve inference for Hardy-Weinberg proportions. For imputation we employ a multinomial logit model that uses information from allele intensities and/or neighbouring markers. Analysis of an empirical data set of single nucleotide polymorphisms possibly related to colon cancer reveals that missing genotypes are not missing completely at random. Deviation from Hardy-Weinberg proportions is mostly due to a lack of heterozygotes. Inbreeding coefficients estimated by multiple imputation of the missings are typically lowered with respect to inbreeding coefficients estimated by discarding the missings. Accounting for missings by multiple imputation qualitatively changed the results of 10 to 17% of the statistical tests performed. Estimates of inbreeding coefficients obtained by multiple imputation showed high correlation with estimates obtained by single imputation using an external reference panel. Our conclusion is that imputation of missing data leads to improved statistical inference for Hardy-Weinberg proportions.

  17. EXISTENCE OF POSITIVE SOLUTIONS TO QUASI-LINEAR EQUATION INVOLVING CRITICAL SOBOLEV-HARDY EXPONENT

    Institute of Scientific and Technical Information of China (English)

    康东升

    2004-01-01

    This paper is concerned with the quasi-linear equation with critical SobolevHardy exponent where Ω RN(N ≥ 3) is a smooth bounded domain, 0 ∈Ω, 0 ≤ s < p, 1 < p < N,p* (s) :=p(N- s)/N-p is the critical Sobolev-Hardy exponent, λ> 0,p ≤ r < p* ,p* := Np/N-p is the critical Sobolev exponent, μ> 0, 0 ≤ t < p, p ≤ q < p* (t) = P(N-t)/N-p.The existence of a positive solution is proved by Sobolev-Hardy inequality and variational method.

  18. L p $L^{p}$ and BMO bounds for weighted Hardy operators on the Heisenberg group

    Directory of Open Access Journals (Sweden)

    Jie Ying Chu

    2016-11-01

    Full Text Available Abstract In the setting of the Heisenberg group H n $\\mathbb{H}^{n}$ , we characterize those nonnegative functions w defined on [ 0 , 1 ] $[0,1]$ for which the weighted Hardy operator H w $\\mathsf{H}_{w}$ is bounded on L p ( H n $L^{p}(\\mathbb{H}^{n}$ , 1 ≤ p ≤ ∞ $1\\leq p\\leq\\infty$ , and on BMO ( H n $\\operatorname{BMO}(\\mathbb{H}^{n}$ . Meanwhile, the corresponding operator norm in each case is derived. Furthermore, we introduce a type of weighted multilinear Hardy operators and obtain the characterizations of their weights for which the weighted multilinear Hardy operators are bounded on the product of Lebesgue spaces in terms of Heisenberg group. In addition, the corresponding norms are worked out.

  19. Hamilton and Hardy: Mentoring and Friendship in the Service of Occupational Health.

    Science.gov (United States)

    Sullivan, Marianne

    This article explores the mentoring relationship between Alice Hamilton and Harriet Hardy, two female physician-researchers who had a tremendous impact on the development of the field of occupational health in the United States during the 20th century. The article relies on letters the women wrote to each other. Hamilton, the elder, supported and furthered Hardy's career by asking her to coauthor the second edition of a seminal occupational health text. After beginning this intellectual collaboration, Hamilton remained a mentor to Hardy, and a decades-long friendship ensued. The article explores their relationship within the historical, political, and social context in which the women worked and made remarkable contributions to public health.

  20. Observation of TeV gamma ray extended sources with ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Vernetto, Silvia, E-mail: vernetto@to.infn.it

    2014-04-01

    More than 80% of TeV galactic gamma ray sources are spatially extended and many of them are still unidentified. The extended emission could be the result of cosmic ray interactions with the ambient medium which provides the target to produce TeV gamma rays. The sensitivity of ground based gamma ray detectors decreases for extended sources; shower detectors, due to their large field of view, are less affected with respect to Cherenkov telescopes. The ARGO-YBJ experiment (Yangbajing Cosmic Ray Laboratory, Tibet, China, 4300 m of altitude) is an air shower detector devoted to gamma ray astronomy at energies above a few hundred GeV, with an integrated sensitivity ranging from 0.24 to ∼1 Crab units, depending on the source declination. In this paper the observation of galactic extended sources with ARGO-YBJ during 5 years is reviewed.

  1. Typical Surface Seasonal Circulation in the Indian Ocean Derived from Argos Floats

    Institute of Scientific and Technical Information of China (English)

    ZHENG Shao-Jun; ZHANG Yu-Hong; ZHUANG Wei; LI Jia-Xun; DU Yan

    2012-01-01

    This study investigates the surface circulation in the Indian Ocean using Argos float data over the period 1979--2011. The Argos observations manifest some new phenomena. The climatological annual mean circulation shows that the surface current becomes much stronger after turning around in shore in the western Indian Ocean. In the tropical Indian Ocean, the Great Whirl (GW) to the east of Somalia develops quickly in spring (April-May) as the monsoon reverses to move northward, becoming strongest in summer (June-September) and disappearing in autumn (October-November). The west end of the Agulhas retroflection can reach 18°E, and it exhibits a seasonal variation. At approximately 90°E, the Agulhas Return Current combines with the eastward South Atlantic Current and finally joins the Antarctic Circumpolar Current.

  2. Gamma rays from dark matter annihilation in the Draco and observability at ARGO

    CERN Document Server

    Bi, X J; Zhang, X; Bi, Xiao-Jun; Hu, Hong-Bo; Zhang, Xinmin

    2006-01-01

    The CACTUS experiment recently observed a gamma ray excess above 50 GeV from the direction of the Draco dwarf spheroidal galaxy. Considering that Draco is dark matter dominated the gamma rays may be generated through dark matter annihilation in the Draco halo. In the framework of the minimal supersymmetric extension of the standard model we explore the parameter space to account for the gamma ray signals at CACTUS. We find that the neutralino mass is constrained to be approximately in the range between 100 GeV ~ 400 GeV and a sharp central cuspy of the dark halo profile in Draco is necessary to explain the CACTUS results. We then discuss further constraints on the supersymmetric parameter space by observations at the ground based ARGO detector. It is found that the parameter space can be strongly constrained by ARGO if no excess from Draco is observed above 100 GeV.

  3. Hardiness in relation to organisational commitment in the Human Resource Management field

    Directory of Open Access Journals (Sweden)

    Nadia Ferreira

    2012-02-01

    Full Text Available Orientation: Employees’ hardiness is increasingly recognised as an aspect of their well-being and feelings of career success. Psychological well-being and feelings of subjective career success have positive implications for the motivation, satisfaction, performance and commitment of young talented staff.Research purpose: The study empirically investigated the relationship between an individual’s hardiness (measured by the Personal Views Survey II [PVS-II] and organisational commitment (measured by the Organisational Commitment Scale.Motivation for the study: Research on an individual’s hardiness profile as an aspect of their career well-being and success and how these attributes influence their psychological attachment to the organisation, is needed to guide human resource career development support practices aimed at retaining valuable staff.Research design, approach and method: A quantitative survey was conducted on a convenience sample of predominantly Black (92.2% and female (71% employed adults (N = 355 at managerial and staff levels in the human resource management field.Main findings: Correlational and multiple regression analyses revealed a number of significant relationships between the two variables.Practical/managerial implications: Managers and human resource practitioners need to recognise how people’s hardiness relates to their sense of psychological attachment to the organisation. Organisations concerned with the retention and well-being of their equity staff members need to find a way to enhance and develop their hardiness and commitment.Contribution/value-add: The research contributes new insights into and knowledge of the factors that influence their employees’ hardiness and how these relate to their organisational commitment. The results may be used to inform career development support interventions that aim to increase employees’ sense of career well-being and success.

  4. Argo: an integrative, interactive, text mining-based workbench supporting curation

    Science.gov (United States)

    Rak, Rafal; Rowley, Andrew; Black, William; Ananiadou, Sophia

    2012-01-01

    Curation of biomedical literature is often supported by the automatic analysis of textual content that generally involves a sequence of individual processing components. Text mining (TM) has been used to enhance the process of manual biocuration, but has been focused on specific databases and tasks rather than an environment integrating TM tools into the curation pipeline, catering for a variety of tasks, types of information and applications. Processing components usually come from different sources and often lack interoperability. The well established Unstructured Information Management Architecture is a framework that addresses interoperability by defining common data structures and interfaces. However, most of the efforts are targeted towards software developers and are not suitable for curators, or are otherwise inconvenient to use on a higher level of abstraction. To overcome these issues we introduce Argo, an interoperable, integrative, interactive and collaborative system for text analysis with a convenient graphic user interface to ease the development of processing workflows and boost productivity in labour-intensive manual curation. Robust, scalable text analytics follow a modular approach, adopting component modules for distinct levels of text analysis. The user interface is available entirely through a web browser that saves the user from going through often complicated and platform-dependent installation procedures. Argo comes with a predefined set of processing components commonly used in text analysis, while giving the users the ability to deposit their own components. The system accommodates various areas and levels of user expertise, from TM and computational linguistics to ontology-based curation. One of the key functionalities of Argo is its ability to seamlessly incorporate user-interactive components, such as manual annotation editors, into otherwise completely automatic pipelines. As a use case, we demonstrate the functionality of an in

  5. Bio-Optical sensors on Argo Floats. Reports of the international ocean-colour coordinating group

    CSIR Research Space (South Africa)

    Bernard, S

    2011-01-01

    Full Text Available . . . . . . . . . . . . . . . . . . . . . 64 7.2.2 Data status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 7.3 Matching Float and OCR Satellite Measurements . . . . . . . . . . . . . . 68 8 Towards the Implementation of Float Arrays 71 8.1 VAL-floats: Preparatory....3 Satellite correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 References 83 iv • Bio-Optical Sensors on Argo Floats Executive Summary In the past two decades, thanks to the advent of satellite ocean-colour radiometry (OCR), biogeochemical...

  6. Global representation of tropical cyclone-induced short-term ocean thermal changes using Argo data

    OpenAIRE

    Cheng, L.; J. Zhu; R. L. Sriver

    2015-01-01

    Argo floats are used to examine tropical cyclone (TC) induced ocean thermal changes on the global scale by comparing temperature profiles before and after TC passage. We present a footprint method that analyzes cross-track thermal responses along all storm tracks during the period 2004–2012. We combine the results into composite representations of the vertical structure of the average thermal response for two different categories: tropical storms/tropical depressions (TS/TD)...

  7. Tomas Hardy ’s Fatalism Embodied in Tess of the D ’Urbervilles

    Institute of Scientific and Technical Information of China (English)

    蒋宜霖

    2015-01-01

    Thomas Hardy was labeled one of the representatives of the English critical realism novelist. After experiencing the arduous liv⁃ing conditions and hardship during his childhood, Hardy has witnessed the capitalist system that brought about misfortune and disaster to the working people, especially farmers, and expressed his deeply sympathy for the lower class. Therefore, in the creation of literary works, he devoted into criticizing the current society relentlessly and exposing the dark side of society to the public. His novels were full of fatalism theory which can be best manifested in his masterpiece Tess of the D’Urbervilles.

  8. Fixed Food Eruption Caused by Actinidia arguta (Hardy Kiwi): A Case Report and Literature Review.

    Science.gov (United States)

    Sohn, Kyoung Hee; Kim, Byung Keun; Kim, Ju Young; Song, Woo Jung; Kang, Hye Ryun; Park, Heung Woo; Cho, Sang Heon; Min, Kyung Up

    2017-03-01

    Fixed drug eruption (FDE) is a common hypersensitivity reaction characterized by recurrent, well-circumscribed, erythematous patches that arise at the same site as a result of systemic drug exposure. However, fixed food eruption (FFE), a lesion triggered by food ingestion, is a rare allergy that was first defined in 1996. Based on their anti-inflammatory and anti-oxidant properties, the fruit and leaves of Actinidia arguta, the hardy kiwi, are widely consumed across Korea, Japan, and China. This report describes the first case of FFE caused by hardy kiwi leaves, known as Daraesun in Korean, confirmed by oral provocation tests and skin biopsy.

  9. Radio-tracking large wilderness mammals: integration of GPS and Argos technologies

    Science.gov (United States)

    Schwartz, Charles C.; Arthur, Steve M.

    1999-01-01

    We tested 30 prototype global positioning system (GPS) radiocollars on brown bears (Ursus arctos) over a 3-year period on the Kenai Peninsula, Alaska. Collars were of 2 design types: GPS units with an Argos (Argos Data collection and Location System) satellite uplink (n = 19) and GPS units where the data were stored on board (n = 10) for retrieval at a later date. All units also contained a conventional VHF (very high frequency) transmitter and weighed 1.7 kg. GPS-Argos units obtained 10-82% of expected GPS fixes, and fix rate declined significantly (P technology using the course acquisition code. Reduced accuracy was likely a result of the proportion of 2-dimensional versus 3-dimensional fixes obtained, although we could not determine this statistic from recorded data. Increased overstory closure was the only variable measured that partially explained the reduced likelihood of a successful fix. Stem density, stem diameter, and overstory height measured within 3 m of the collar did not affect fix success. GPS fix success rates for collars attached to bears varied more and were lower than fix rates for stationary collars placed in various vegetation types, suggesting that the bear, terrain, and movement all influence both fix and uplink success rate. Application of this new technology to grizzly and brown bear research and comparisons to studies with moose (Alces alces) are discussed.

  10. Energy spectrum of cosmic ray protons and helium nuclei measured by the ARGO-YBJ experiment

    Energy Technology Data Exchange (ETDEWEB)

    Mari, S.M. [Dipartimento di Matematica e Fisica - Università degli Studi Roma TRE, via della Vasca Navale 84, 00146 Roma (Italy); Istituto Nazionale di Fisica Nucleare - Sezione di Roma TRE, via della Vasca Navale 84, 00146 Roma (Italy); Montini, P., E-mail: paolo.montini@roma3.infn.it [Istituto Nazionale di Fisica Nucleare - Sezione di Roma TRE, via della Vasca Navale 84, 00146 Roma (Italy)

    2014-04-01

    The ARGO-YBJ experiment is a full-coverage air shower detector operating at the Yangbajing International Cosmic Ray Observatory (Tibet, PR China, 4300 m a.s.l.). The detector was in stable data taking in its full configuration from November 2007 to February 2013. More than 5×10{sup 11} events have been collected and reconstructed. Due to its characteristics (full-coverage, high segmentation, high altitude operation) the ARGO-YBJ experiment is able to investigate the cosmic ray energy spectrum in a wide energy range and offer the possibility of measuring the cosmic ray light component spectrum down to the TeV region, where direct balloon-borne measurements are available. In this work we present the measurement of the proton and helium spectra in the energy range 1–300 TeV by using a large data sample collected between January 2008 and December 2011. - Highlights: • We have measured the light component spectrum of cosmic rays. • The measurement has been performed by the full coverage high altitude ARGO-YBJ experiment. • The measurement covers the energy range 1–300 TeV where direct measurements are available.

  11. Geophysical investigations near the ancient Agora at the city of Argos, Greece

    Science.gov (United States)

    Zananiri, Irene; Hademenos, Vassilios; Piteros, Christos

    2010-06-01

    It is possible to reduce risk in archaeological excavations by identifying areas of high potential at an early stage and locating trenches accordingly. Towards this goal, a non-invasive geophysical survey was carried out at the city of Argos, which from the beginning of Archaic Times and through to Classical Times was one of the most prominent city-states. Based on historical and archaeological evidence, two sites were chosen near the ancient Agora of Argos. Total field and gradient magnetic measurements were collected over several grids, with 1 m spacing between measurement points. Representative samples were taken for laboratory measurements of the low-field magnetic susceptibility. Mapping, filtering and inversion procedures of the magnetic data have been used in tandem. The data management and cartographic representation was performed using Geographic Information Systems, where a geographic database was created, including all available information for the broader Argos area. The results of the geophysical survey were able to highlight the presence of linear and square structures possibly representing inhabitance ruins, namely small building remnants and road foundations according to observations from neighbouring excavations. Thus, the authors were able to suggest to the archaeologists excavation tests on the basis of the residual magnetic map.

  12. The Argo Simulation: II. The Early Build-up of the Hubble Sequence

    CERN Document Server

    Feldmann, Robert

    2014-01-01

    The Hubble sequence is a common classification scheme for the structure of galaxies. Despite the tremendous usefulness of this diagnostic, we still do not fully understand when, where, and how this morphological ordering was put in place. Here, we investigate the morphological evolution of a sample of 22 high redshift ($z\\geq3$) galaxies extracted from the Argo simulation. Argo is a cosmological zoom-in simulation of a group-sized halo and its environment. It adopts the same high resolution ($\\sim10^4$ M$_\\odot$, $\\sim100$ pc) and sub-grid physical model that was used in the Eris simulation but probes a sub-volume almost ten times bigger with as many as 45 million gas and star particles in the zoom-in region. Argo follows the early assembly of galaxies with a broad range of stellar masses ($\\log M_{\\star}/{\\rm M}_{\\odot}\\sim8-11$ at $z\\simeq3$), while resolving properly their structural properties. We recover a diversity of morphologies, including late-type/irregular disc galaxies with flat rotation curves, s...

  13. Study of the diffuse gamma-ray emission from the Galactic plane with ARGO-YBJ

    CERN Document Server

    Bartoli, B; Bi, X J; Branchini, P; Budano, A; Camarri, P; Cao, Z; Cardarelli, R; Catalanotti, S; Chen, S Z; Chen, T L; Creti, P; Cui, S W; Dai, B Z; D'Amone, A; Danzengluobu,; De Mitri, I; Piazzoli, B D'Ettorre; Di Girolamo, T; Di Sciascio, G; Feng, C F; Feng, Zhaoyang; Feng, Zhenyong; Gou, Q B; Guo, Y Q; He, H H; Hu, Haibing; Hu, Hongbo; Iacovacci, M; Iuppa, R; Jia, H Y; Labaciren,; Li, H J; Liguori, G; Liu, C; Liu, J; Liu, M Y; Lu, H; Ma, L L; Ma, X H; Mancarella, G; Mari, S M; Marsella, G; Martello, D; Mastroianni, S; Montini, P; Ning, C C; Panareo, M; Perrone, L; Pistilli, P; Ruggieri, F; Salvini, P; Santonico, R; Shen, P R; Sheng, X D; Shi, F; Surdo, A; Tan, Y H; Vallania, P; Vernetto, S; Vigorito, C; Wang, H; Wu, C Y; Wu, H R; Xue, L; Yang, Q Y; Yang, X C; Yao, Z G; Yuan, A F; Zha, M; Zhang, H M; Zhang, L; Zhang, X Y; Zhang, Y; Zhao, J; Zhaxiciren,; Zhaxisangzhu,; Zhou, X X; Zhu, F R; Zhu, Q Q; Zizzi, G

    2015-01-01

    The events recorded by ARGO-YBJ in more than five years of data collection have been analyzed to determine the diffuse gamma-ray emission in the Galactic plane at Galactic longitudes 25{\\deg} < l < 100{\\deg} and Galactic latitudes . The energy range covered by this analysis, from ~350 GeV to ~2 TeV, allows the connection of the region explored by Fermi with the multi-TeV measurements carried out by Milagro. Our analysis has been focused on two selected regions of the Galactic plane, i.e., 40{\\deg} < l < 100{\\deg} and 65{\\deg} < l < 85{\\deg} (the Cygnus region), where Milagro observed an excess with respect to the predictions of current models. Great care has been taken in order to mask the most intense gamma-ray sources, including the TeV counterpart of the Cygnus cocoon recently identified by ARGO-YBJ, and to remove residual contributions. The ARGO-YBJ results do not show any excess at sub-TeV energies corresponding to the excess found by Milagro, and are consistent with the predictions of ...

  14. Search for Gamma-Ray Bursts with the ARGO-YBJ Detector in Shower Mode

    Science.gov (United States)

    Bartoli, B.; Bernardini, P.; Bi, X. J.; Cao, Z.; Catalanotti, S.; Chen, S. Z.; Chen, T. L.; Cui, S. W.; Dai, B. Z.; D'Amone, A.; Danzengluobu; De Mitri, I.; D'Ettorre Piazzoli, B.; Di Girolamo, T.; Di Sciascio, G.; Feng, C. F.; Feng, Zhaoyang; Feng, Zhenyong; Gao, W.; Gou, Q. B.; Guo, Y. Q.; He, H. H.; Hu, Haibing; Hu, Hongbo; Iacovacci, M.; Iuppa, R.; Jia, H. Y.; Labaciren; Li, H. J.; Liu, C.; Liu, J.; Liu, M. Y.; Lu, H.; Ma, L. L.; Ma, X. H.; Mancarella, G.; Mari, S. M.; Marsella, G.; Mastroianni, S.; Montini, P.; Ning, C. C.; Perrone, L.; Pistilli, P.; Salvini, P.; Santonico, R.; Shen, P. R.; Sheng, X. D.; Shi, F.; Surdo, A.; Tan, Y. H.; Vallania, P.; Vernetto, S.; Vigorito, C.; Wang, H.; Wu, C. Y.; Wu, H. R.; Xue, L.; Yang, Q. Y.; Yang, X. C.; Yao, Z. G.; Yuan, A. F.; Zha, M.; Zhang, H. M.; Zhang, L.; Zhang, X. Y.; Zhang, Y.; Zhao, J.; Zhaxiciren; Zhaxisangzhu; Zhou, X. X.; Zhu, F. R.; Zhu, Q. Q.; ARGO-YBJ Collaboration

    2017-06-01

    The ARGO-YBJ detector, located at the Yangbajing Cosmic Ray Laboratory (4300 m a. s. l., Tibet, China), was a “full coverage” (central carpet with an active area of ˜93%) air shower array dedicated to gamma-ray astronomy and cosmic-ray studies. The wide field of view (˜2 sr) and high duty cycle (>86%), made ARGO-YBJ suitable to search for short and unexpected gamma-ray emissions like gamma-ray bursts (GRBs). Between 2007 November 6 and 2013 February 7, 156 satellite-triggered GRBs (24 of them with known redshift) occurred within the ARGO-YBJ field of view (zenith angle θ ≤ 45°). A search for possible emission associated with these GRBs has been made in the two energy ranges 10-100 GeV and 10-1000 GeV. No significant excess has been found in time coincidence with the satellite detections nor in a set of different time windows inside the interval of one hour after the bursts. Taking into account the EBL absorption, upper limits to the energy fluence at a 99% confidence level have been evaluated, with values ranging from ˜10-5 erg cm-2 to ˜10-1 erg cm-2. The Fermi-GBM burst GRB 090902B, with a high-energy photon of 33.4 GeV detected by Fermi-LAT, is discussed in detail.

  15. Impact of climate change on cold hardiness of Douglas-fir (Pseudotsuga menziesii): Environmental and genetic considerations

    Science.gov (United States)

    Sheel Bansal; Bradley J. St. Clair; Constance A. Harrington; Peter J. Gould

    2015-01-01

    The success of conifers over much of the world’s terrestrial surface is largely attributable to their tolerance to cold stress (i.e., cold hardiness). Due to an increase in climate variability, climate change may reduce conifer cold hardiness, which in turn could impact ecosystem functioning and productivity in conifer-dominated forests. The expression of cold...

  16. Hardiness as a predictor of mental health and well-being of Australian army reservists on and after stability operations.

    Science.gov (United States)

    Orme, Geoffrey J; Kehoe, E James

    2014-04-01

    This study tested whether cognitive hardiness moderates the adverse effects of deployment-related stressors on health and well-being of soldiers on short-tour (4-7 months), peacekeeping operations. Australian Army reservists (N = 448) were surveyed at the start, end, and up to 24 months after serving as peacekeepers in Timor-Leste or the Solomon Islands. They retained sound mental health throughout (Kessler 10, Post-Traumatic Checklist-Civilian, Depression Anxiety Stress Scale 42). Ratings of either traumatic or nontraumatic stress were low. Despite range restrictions, scores on the Cognitive Hardiness Scale moderated the relationship between deployment stressors and a composite measure of psychological distress. Scatterplots revealed an asymmetric pattern for hardiness scores and measures of psychological distress. When hardiness scores were low, psychological distress scores were widely dispersed. However, when hardiness scores were higher, psychological distress scores became concentrated at a uniformly low level.

  17. Chemical control of Phytophthora ramorum causing foliar disease in hardy nursery stock in the United Kingdom

    Science.gov (United States)

    Judith Turner; Philip Jennings; Sam McDonough; Debbie Liddell; Jackie Stonehouse

    2006-01-01

    A range of fungicides have been tested for activity against P. ramorum using both in vitro and in vivo tests. All fungicides had proven activity against Phytophthora species and either had full approval for use on hardy ornamental nursery stock in the United Kingdom, or could be used under the Revised Long Term Arrangements for Extension of Use (2002...

  18. Where Is the Individual? Comments on Nesselroade, Gerstorf, Hardy and Ram

    Science.gov (United States)

    Schaie, K. Warner

    2007-01-01

    Nesselroade, Gerstorf, Hardy, and Ram have done a marvelous job in discussing the methodological issues for a meaningful revival of the idiographic versus nomothetic debate that has flared up periodically over the past seven decades. Nesselroade et al. have previously attempted to resolve the paradox that all behavior occurs at the individual…

  19. As Luck Would Have It: Thomas Hardy's "Bildungsroman" on Leading a Human Life

    Science.gov (United States)

    Laverty, Megan Jane

    2014-01-01

    In this essay, I demonstrate the value of the Bildungsroman for philosophy of education on the grounds that these narratives raise and explore educational questions. I focus on a short story in the Bildungsroman tradition, Thomas Hardy's "A Mere Interlude". This story describes the maturation of its heroine by narrating a series of…

  20. Relationships between Teacher Organizational Commitment, Psychological Hardiness and Some Demographic Variables in Turkish Primary Schools

    Science.gov (United States)

    Sezgin, Ferudun

    2009-01-01

    Purpose: The purpose of this paper is to examine the relationships between teachers' organizational commitment perceptions and both their psychological hardiness and some demographic variables in a sample of Turkish primary schools. Design/methodology/approach: A total of 405 randomly selected teachers working at primary schools in Ankara…

  1. Hardiness, Perceived Employability, and Career Decision Self-Efficacy among Taiwanese College Students

    Science.gov (United States)

    Huang, Jie-Tsuen

    2015-01-01

    Past empirical evidence has demonstrated that personality traits predict career decision self-efficacy. This study extends previous research by proposing and testing a model that examines the mediating roles of perceived internal and external employability on the relationship between personality hardiness and career decision self-efficacy. Using…

  2. Preliminary results on seasonal changes in flower bud cold hardiness of sour cherry

    DEFF Research Database (Denmark)

    Liu, Guangping; Pagter, Majken; Andersen, Lillie

    2012-01-01

    Irregular yields of Prunus cerasus ‘Stevnsbaer Birgitte’, which is the preferred sour cherry cultivar in Denmark, have been proposed to be a result of freeze injury to floral tissues. This study determined floral mortality of P. cerasus ‘Stevnsbaer Birgitte’ and the supposedly more cold hardy P...

  3. Atomic Decompositions of Weak Hardy Spaces of B-Valued Martingales

    Institute of Scientific and Technical Information of China (English)

    MA Tao; LIU Peide

    2006-01-01

    The atomic decompositions of weak Hardy spaces of Banach-space-valued martingales are given. With the help of the atomic decompositions, some inequalities for B-valued martingales are established in the case 0 < r≤ 1.Here the results are connected closely with the p-uniform smoothness and q-uniform convexity of Banach spaces which the martingales take values in.

  4. Holder's and Hardy's Two Dimensional Diamond-alpha Inequalities on Time Scales

    CERN Document Server

    Ammi, Moulay Rchid Sidi

    2010-01-01

    We prove a two dimensional Holder and reverse-Holder inequality on time scales via the diamond-alpha integral. Other integral inequalities are established as well, which have as corollaries some recent proved Hardy-type inequalities on time scales.

  5. Boundedness of Calderón-Zygmund operators in product Hardy spaces

    Institute of Scientific and Technical Information of China (English)

    HAN Yong-sheng; YANG Da-chun

    2009-01-01

    By means of vector-valued product Calderón-Zygmund operators and some subtle estimates, the boundedness in product Hardy spaces on Rn × Rm of Calderón-Zygmund operators introduced by J. L. Journé is established.

  6. On some generalizations of the Hilbert–Hardy type discrete inequalities

    Directory of Open Access Journals (Sweden)

    S.A.A. El-Marouf

    2014-10-01

    Full Text Available New Hilbert-type discrete inequalities are presented by using new techniques in proof. By specializing the weight coefficient functions in the hypothesis and the parameters, we obtain many special cases which include, in particular, the discrete inequality derived by Hilbert and Hardy. Many improvements and generalizations of known results are given in this paper.

  7. New Hardy spaces of Musielak-Orlicz type and boundedness of sublinear operators

    CERN Document Server

    Ky, Luong Dang

    2011-01-01

    We introduce a new class of Hardy spaces $H^{\\phi(\\cdot,\\cdot)}(\\mathbb R^n)$, called Hardy spaces of Musielak-Orlicz type, which generalize the Hardy-Orlicz spaces of Janson and the weighted Hardy spaces of Garc\\'ia-Cuerva, Str\\"omberg, and Torchinsky. Here, $\\phi: \\mathbb R^n\\times [0,\\infty)\\to [0,\\infty)$ is a function such that $\\phi(x,\\cdot)$ is an Orlicz function and $\\phi(\\cdot,t)$ is a Muckenhoupt $A_\\infty$ weight. A function $f$ belongs to $H^{\\phi(\\cdot,\\cdot)}(\\mathbb R^n)$ if and only if its maximal function $f^*$ is so that $x\\mapsto \\phi(x,|f^*(x)|)$ is integrable. Such a space arises naturally for instance in the description of the product of functions in $H^1(\\mathbb R^n)$ and $BMO(\\mathbb R^n)$ respectively (see \\cite{BGK}). We characterize these spaces via the grand maximal function and establish their atomic decomposition. We characterize also their dual spaces. The class of pointwise multipliers for $BMO(\\mathbb R^n)$ characterized by Nakai and Yabuta can be seen as the dual of $L^1(\\mat...

  8. Problem-solving skills and hardiness as protective factors against stress in Iranian nurses.

    Science.gov (United States)

    Abdollahi, Abbas; Talib, Mansor Abu; Yaacob, Siti Nor; Ismail, Zanariah

    2014-02-01

    Nursing is a stressful occupation, even when compared with other health professions; therefore, it is necessary to advance our knowledge about the protective factors that can help reduce stress among nurses. The present study sought to investigate the associations among problem-solving skills and hardiness with perceived stress in nurses. The participants, 252 nurses from six private hospitals in Tehran, completed the Personal Views Survey, the Perceived Stress Scale, and the Problem-Solving Inventory. Structural Equation Modeling (SEM) was used to analyse the data and answer the research hypotheses. As expected, greater hardiness was associated with low levels of perceived stress, and nurses low in perceived stress were more likely to be considered approachable, have a style that relied on their own sense of internal personal control, and demonstrate effective problem-solving confidence. These findings reinforce the importance of hardiness and problem-solving skills as protective factors against perceived stress among nurses, and could be important in training future nurses so that hardiness ability and problem-solving skills can be imparted, allowing nurses to have more ability to control their perceived stress.

  9. Sharp Weighted Estimates for a Class of n-dimensional Hardy-Steklov Operators

    Institute of Scientific and Technical Information of China (English)

    ZHENG QING-YU; SHI SHAO-GUANG; Ji You-qing

    2011-01-01

    In this paper,we study one class of n-dimensional Hardy-Steklov operators which has important applications in the technical analysis in equity markets.We establish their weighted boundedness and the corresponding operator norms on both Lp(Rn) and BMO(Rn).

  10. Weak type estimates of intrinsic square functions on the weighted Hardy spaces

    CERN Document Server

    Wang, Hua

    2010-01-01

    In this paper, by using the atomic decomposition theory of weighted Hardy spaces, we will give some weighted weak type estimates for intrinsic square functions including the Lusin area function, Littlewood-Paley $g$-function and $g^*_\\lambda$-function on these spaces.

  11. Weak type estimates of intrinsic square functions on the weighted Herz-type Hardy spaces

    CERN Document Server

    Wang, Hua

    2010-01-01

    In this paper, by using the atomic decomposition theory of weighted Herz-type Hardy spaces, we will obtain some weighted weak type estimates for intrinsic square functions including the Lusin area function, Littlewood-Paley $g$-function and $g^*_\\lambda$-function on these spaces.

  12. Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces

    Institute of Scientific and Technical Information of China (English)

    XIE LinSen; LAN JiaCheng; LAN SenHua; YAN DunYan

    2009-01-01

    We establish Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces.These inequalities can be applied to some important operators in Fourier analysis,such as the Bochner-Riesz multiplier over the critical index,the generalized Bochner-Riesz mean and the generalized Able-Poisson operator.

  13. Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    We establish Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces. These inequalities can be applied to some important operators in Fourier analysis, such as the Bochner-Riesz multiplier over the critical index, the generalized Bochner-Riesz mean and the generalized Able-Poisson operator.

  14. Appreciation of Hardy's Poem "Neutral Tones" from the Point of View of Functional Analysis

    Science.gov (United States)

    Chen, Hong-qin

    2008-01-01

    According to the theory of Systemic-Functional Linguistics (SFL), language cannot be disassociated from meaning. Function and semantics, as SFL suggests, are considered as the basis of human language and communicative activity. In order to reveal the inseparability of language and semantic, this paper aims to analyze and appreciate Hardy's poem…

  15. Essentially normal Hilbert modules and Khomology Ⅲ: Homogenous quotient modules of Hardy modules on the bidisk

    Institute of Scientific and Technical Information of China (English)

    Kun-yu GUO; Peng-hui WANG

    2007-01-01

    In this paper, we study the homogenous quotient modules of the Hardy module on the bidisk. The essential normality of the homogenous quotient modules is completely characterized. We also describe the essential spectrum for a general quotient module. The paper also considers K-homology invariant defined in the case of the homogenous quotient modules on the bidisk.

  16. Abscisic acid form, concentration, and application timing influence phenology and bud cold hardiness in Merlot grapevines

    Science.gov (United States)

    The effects of abscisic acid (ABA) form, concentration and application timing on bud cold hardiness, phenology and fruiting performance on ‘Merlot’ grapevines (Vitis vinifera) were evaluated in a three year field trial with site locations in British Columbia Canada, Ontario Canada, Washington U.S. ...

  17. Maximal function characterizations of Hardy spaces on RD-spaces and their applications

    Institute of Scientific and Technical Information of China (English)

    Loukas; GRAFAKOS

    2008-01-01

    Let X be an RD-space, i.e., a space of homogeneous type in the sense of Coifman and Weiss, which has the reverse doubling property. Assume that X has a "dimension" n. For α∈ (0, ∞) denote by Hαp(X ), Hdp(X ), and H?,p(X ) the corresponding Hardy spaces on X defined by the nontangential maximal function, the dyadic maximal function and the grand maximal function, respectively. Using a new inhomogeneous Calder′on reproducing formula, it is shown that all these Hardy spaces coincide with Lp(X ) when p ∈ (1, ∞] and with each other when p ∈ (n/(n + 1), 1]. An atomic characterization for H*,p(X ) with p ∈ (n/(n + 1), 1] is also established; moreover, in the range p ∈ (n/(n + 1), 1], it is proved that the space H?,p(X ), the Hardy space Hp(X ) defined via the Littlewood-Paley function, and the atomic Hardy space of Coifman and Weiss coincide. Furthermore, it is proved that a sublinear operator T uniquely extends to a bounded sublinear operator from Hp(X ) to some quasi-Banach space B if and only if T maps all (p, q)-atoms when q ∈ (p, ∞)∩[1, ∞) or continuous (p, ∞)-atoms into uniformly bounded elements of B.

  18. Impact of Psychological Hardiness and Self-Monitoring on Teacher Burnout

    Science.gov (United States)

    Erkutlu, Hakan

    2012-01-01

    The purpose of this research is to examine the moderating effects of psychological hardiness and self-monitoring on the linkage between organizational politics and teacher burnout. Totally 1344 teachers from 112 high schools chosen by random method in Ankara, Istanbul, Adana, Antalya, Samsun, Kahramanmaras, Adiyaman and Gaziantep in 2010-2011…

  19. Characterization of wild north american grapevine cold hardiness using differential thermal analysis

    Science.gov (United States)

    The cold hardiness of 33 different grapevine genotypes, representing six wild North American grapevine species, one wild Asian grapevine species, and six hybrid grapevines, was evaluated by measuring lethal temperatures for dormant buds using low temperature exotherms. Studies were conducted in thre...

  20. Hardiness, Perceived Employability, and Career Decision Self-Efficacy among Taiwanese College Students

    Science.gov (United States)

    Huang, Jie-Tsuen

    2015-01-01

    Past empirical evidence has demonstrated that personality traits predict career decision self-efficacy. This study extends previous research by proposing and testing a model that examines the mediating roles of perceived internal and external employability on the relationship between personality hardiness and career decision self-efficacy. Using…

  1. Impact of Psychological Hardiness and Self-Monitoring on Teacher Burnout

    Science.gov (United States)

    Erkutlu, Hakan

    2012-01-01

    The purpose of this research is to examine the moderating effects of psychological hardiness and self-monitoring on the linkage between organizational politics and teacher burnout. Totally 1344 teachers from 112 high schools chosen by random method in Ankara, Istanbul, Adana, Antalya, Samsun, Kahramanmaras, Adiyaman and Gaziantep in 2010-2011…

  2. The Comparison of Hardiness and Coping Styles with Psychological Stress in Addicted and Normal People

    Directory of Open Access Journals (Sweden)

    Rahim Molazadeh, E

    2011-05-01

    Full Text Available Introduction: The purpose of this study was to compare the hardiness and coping styles with stress in addicted and normal people in the city of Rasht. Method: The method of this study was causal comparative research. In sampling one hundred addicts were selected by multistage cluster sampling and one hundred normal ones selected by available sampling, then the Kobasa personal views survey and Moos and Billings coping styles questionnaires were administered among both groups. The Pearson correlation coefficients, independent samples t-test and regression analysis were used for data analysis. Results: The results showed that there were significant differences between the mean scores of hardiness and emotion focused coping style in addicted and normal people, but there was no significant difference on problem focused coping style. Regression analysis also showed that hardiness can be a significant predictor for emotion focused coping style. Conclusion: The findings of this research show the important role of some of the personality characteristics such as hardiness and coping styles with stress that may correlate with the tendency to addiction and substance abuse in people.

  3. The western South China Sea currents from measurements by Argo profiling floats during October to December 2007

    Institute of Scientific and Technical Information of China (English)

    周慧; 袁东亮; 李瑞祥; 何蕾

    2010-01-01

    The three dimensional structure of the western boundary current east of the Vietnam coast was determined from measurements by Argo profiling floats which deployed near the east of the Vietnam Coast in October 2007. The trajectories of the Argo floats provided robust evidence that there does exist southward flowing current along the Vietnam coast. The southward current begins at about 15°N, 111°E, flowing along the 1 000 m isobath and extending to 5°N south. The estimated surface and parking depth velocities...

  4. Mapping error in Southern Ocean transport computed from satellite altimetry and argo

    Science.gov (United States)

    Kosempa, Michael; Chambers, Don P.

    2016-11-01

    In an effort to better estimate transport dynamics in response to wind forcing (primarily the Southern Annual Mode), this study quantifies the uncertainty in mapping zonal geostrophic transport of the Antarctic Circumpolar Current from sparse temperature, salinity and sea surface height observations. To do this, we sampled an ocean state estimate at the locations of both Argo floats and the Jason-1 altimeter groundtrack. These sampled values were then optimally interpolated to create SSH and temperature/salinity grids with 1° resolution. The temperature, salinity and SSH grids were then combined to compute the zonal geostrophic transport and compared to that estimated from the full state estimate. There are significant correlations between the baroclinic and barotropic error contributions to the total transport error. The increase in Argo floats in the Southern Ocean is effective in reducing mapping error. However, that error improvement is not uniform. By analyzing systematic errors in transport time series, we find the transects that are most appropriate for analyzing the dynamics of ACC transport using Argo and altimetric gridded fields. Based on our analysis, we conclude region south of Tasmania is most appropriate, with lowest uncertainty. Using real-world data, we calculated zonal transport variability at a transect south of Tasmania. There is an insignificant trend (0.3 ± 0.4 Sv yr-1, 90% confidence) but significant low-frequency variability correlated with the Southern Annular Mode (0.53, p < 0.05). The barotropic component is most responsible for the low-frequency variability, and this would be unobservable from ship casts without velocity measurements at depth.

  5. An argo-based model for investigation of the Global Ocean (AMIGO)

    Science.gov (United States)

    Lebedev, K. V.

    2016-03-01

    We analyze the newly developed Argo-Based Model for Investigation of the Global Ocean (AMIGO), which consists of a block for variational interpolation of the profiles of drifting Argo floats to a regular grid and a block for model hydrodynamic adjustment of variationally interpolated fields. Such a method makes it possible to obtain a full set of oceanographic characteristics—temperature, salinity, density, and current velocity—using irregularly located Argo measurements. The resulting simulations are represented as monthly mean, seasonal, and annual means and climatological fields. The AMIGO oceanographic database developed at the Shirshov Institute of Oceanology from model simulations covers the 10-year period from 2005 to 2014. Analysis of transport variations in the propagation of North Atlantic Current jets to the Arctic based on the AMIGO data showed that during this period, anomalous winter transports were observed, which correlate with anomalous winter temperatures in regions of northwestern Europe, northern European Russia, and Iceland, which are subjected to the influence of these currents. Comparative analysis of variations in mass and heat transport by the currents and the North Atlantic Oscillation (NAO) index in the period of 2005-2014 shows a well pronounced correlation between them. The low winter values of the NAO index correspond to the low values of winter transports by the Faroe-Shetland branch of the North Atlantic current, and usually, to the high values of winter transports by the North Icelandic branch of the Irminger Current. High winter value of the NAO index results in a substantial increase in the winter transport by the Faroe-Shetland branch of the North Atlantic Current without notable influence on the transport of the North Icelandic branch of the Irminger Current.

  6. The Argo simulation - II. The early build-up of the Hubble sequence

    Science.gov (United States)

    Fiacconi, Davide; Feldmann, Robert; Mayer, Lucio

    2015-01-01

    The Hubble sequence is a common classification scheme for the structure of galaxies. Despite the tremendous usefulness of this diagnostic, we still do not fully understand when, where, and how this morphological ordering was put in place. Here, we investigate the morphological evolution of a sample of 22 high-redshift (z ≥ 3) galaxies extracted from the Argo simulation. Argo is a cosmological zoom-in simulation of a group-sized halo and its environment. It adopts the same high-resolution (˜104 M⊙, ˜100 pc) and sub-grid physical model that was used in the Eris simulation but probes a sub-volume almost 10 times bigger with as many as 45 million gas and star particles in the zoom-in region. Argo follows the early assembly of galaxies with a broad range of stellar masses (log M⋆/M⊙ ˜ 8-11 at z ≃ 3), while resolving properly their structural properties. We recover a diversity of morphologies, including late-type/irregular disc galaxies with flat rotation curves, spheroid dominated early-type discs, and a massive elliptical galaxy, already established at z ˜ 3. We identify major mergers as the main trigger for the formation of bulges and the steepening of the circular velocity curves. Minor mergers and non-axisymmetric perturbations (stellar bars) drive the bulge growth in some cases. The specific angular momenta of the simulated disc components fairly match the values inferred from nearby galaxies of similar M⋆ once the expected redshift evolution of disc sizes is accounted for. We conclude that morphological transformations of high-redshift galaxies of intermediate mass are likely triggered by processes similar to those at low redshift and result in an early build-up of the Hubble sequence.

  7. Argo data assimilation into HYCOM with an EnOI method in the Atlantic Ocean

    Science.gov (United States)

    Mignac, D.; Tanajura, C. A. S.; Santana, A. N.; Lima, L. N.; Xie, J.

    2015-02-01

    An ocean data assimilation system to assimilate Argo temperature (T) and salinity (S) profiles into the HYbrid Coordinate Ocean Model (HYCOM) was constructed, implemented and evaluated for the first time in the Atlantic Ocean (78° S to 50° N and 98° W to 20° E). The system is based on the ensemble optimal interpolation (EnOI) algorithm proposed by Xie and Zhu (2010), especially made to deal with the hybrid nature of the HYCOM vertical coordinate system with multiple steps. The Argo T-S profiles were projected to the model vertical space to create pseudo-observed layer thicknesses (Δ pobs), which correspond to the model target densities. The first step was to assimilate Δ pobs considering the sub-state vector composed by the model layer thickness (Δ p) and the baroclinic velocity components. After that, T and S were assimilated separately. Finally, T was diagnosed below the mixed layer to preserve the density of the model isopycnal layers. Five experiments were performed from 1 January 2010 to 31 December 2012: a control run without assimilation, and four assimilation runs considering the different vertical localizations of T, S and Δ p. The assimilation experiments were able to significantly improve the thermohaline structure produced by the control run. They reduced the root mean square deviation (RMSD) of T and S calculated with respect to Argo independent data in 34 and 44%, respectively, in comparison to the control run. In some regions, such as the western North Atlantic, substantial corrections in the 20 °C isotherm depth and the upper ocean heat content towards climatological states were achieved. The runs with a vertical localization of Δ p showed positive impacts in the correction of the thermohaline structure and reduced the RMSD of T (S) from 0.993 °C (0.149 psu) to 0.905 °C (0.138 psu) for the whole domain with respect to the other assimilation runs.

  8. Coherent heat patterns revealed by unsupervised classification of Argo temperature profiles in the North Atlantic Ocean

    Science.gov (United States)

    Maze, Guillaume; Mercier, Herlé; Fablet, Ronan; Tandeo, Pierre; Lopez Radcenco, Manuel; Lenca, Philippe; Feucher, Charlène; Le Goff, Clément

    2017-02-01

    A quantitative understanding of the integrated ocean heat content depends on our ability to determine how heat is distributed in the ocean and identify the associated coherent patterns. This study demonstrates how this can be achieved using unsupervised classification of Argo temperature profiles. The classification method used is a Gaussian Mixture Model (GMM) that decomposes the Probability Density Function of a dataset into a weighted sum of Gaussian modes. It is determined that the North Atlantic Argo dataset of temperature profiles contains 8 groups of vertically coherent heat patterns, or classes. Each of the temperature profile classes reveals unique and physically coherent heat distributions along the vertical axis. A key result of this study is that, when mapped in space, each of the 8 classes is found to define an oceanic region, even if no spatial information was used in the model determination. The classification result is independent of the location and time of the ARGO profiles. Two classes show cold anomalies throughout the water column with amplitude decreasing with depth. They are found to be localized in the subpolar gyre and along the poleward flank of the Gulf Stream and North Atlantic Current (NAC). One class has nearly zero anomalies and a large spread throughout the water column. It is found mostly along the NAC. One class has warm anomalies near the surface (50 m) and cold ones below 200 m. It is found in the tropical/equatorial region. The remaining four classes have warm anomalies throughout the water column, one without depth dependance (in the southeastern part of the subtropical gyre), the other three with clear maximums at different depths (100 m, 400 m and 1000 m). These are found along the southern flank of the North Equatorial Current, the western part of the subtropical gyre and over the West European Basin. These results are robust to both the seasonal variability and to method parameters such as the size of the analyzed domain.

  9. Mean Interplanetary Magnetic Field Measurement Using the ARGO-YBJ Experiment

    CERN Document Server

    Aielli, G; Bartoli, B; Bernardini, P; Bi, X J; Bleve, C; Branchini, P; Budano, A; Bussino, S; Melcarne, A K Calabrese; Camarri, P; Cao, Z; Cappa, A; Cardarelli, R; Catalanotti, S; Cattaneo, C; Celio, P; Chen, S Z; Chen, T L; Chen, Y; Creti, P; Cui, S W; Dai, B Z; Staiti, G D'Alí; Danzengluobu,; Dattoli, M; De Mitri, I; Piazzoli, B D'Ettorre; De Vincenzi, M; Di Girolamo, T; Ding, X H; Di Sciascio, G; Feng, C F; Feng, Z Y; Feng, Zhenyong; Galeazzi, F; Galeotti, P; Gargana, R; Gou, Q B; Guo, Y Q; He, H H; Hu, Haibing; Hu, Hongbo; Huang, Q; Iacovacci, M; Iuppa, R; James, I; Jia, H Y; Labaciren,; Li, H J; Li, J Y; Li, X X; Liberti, B; Liguori, G; Liu, C; Liu, C Q; Liu, M Y; Liu, J; Lu, H; Ma, X H; Mancarella, G; Mari, S M; Marsella, G; Martello, D; Mastroianni, S; Meng, X R; Montini, P; Ning, C C; Pagliaro, A; Panareo, M; Perrone, L; Pistilli, P; Qu, X B; Rossi, E; Ruggieri, F; Saggese, L; Salvini, P; Santonico, R; Shen, P R; Sheng, X D; Shi, F; Stanescu, C; Surdo, A; Tan, Y H; Vallania, P; Vernetto, S; Vigorito, C; Wang, B; Wang, H; Wu, C Y; Wu, H R; Yao, Z G; Xu, B; Xue, L; Yan, Y X; Yang, Q Y; Yang, X C; Yuan, A F; Zha, M; Zhang, H M; Zhang, JiLong; Zhang, JianLi; Zhang, L; Zhang, P; Zhang, X Y; Zhang, Y; Zhaxisangzhu,; Zhaxiciren,; Zhou, X X; Zhu, F R; Zhu, Q Q; Zizzi, G

    2011-01-01

    The sun blocks cosmic ray particles from outside the solar system, forming a detectable shadow in the sky map of cosmic rays detected by the ARGO-YBJ experiment in Tibet. Because the cosmic ray particles are positive charged, the magnetic field between the sun and the earth deflects them from straight trajectories and results in a shift of the shadow from the true location of the sun. Here we show that the shift measures the intensity of the field which is transported by the solar wind from the sun to the earth.

  10. Recent Results from ArgoNeuT and Status of MicroBooNE

    Energy Technology Data Exchange (ETDEWEB)

    Szelc, Andrzej [Yale

    2015-07-10

    Liquid Argon Time Projection Chamber (LArTPC) detectors hold the key to answering the outstanding questions about the role of neutrinos in the Standard Model of Particle physics and beyond. Their fine granularity combined with calorimetric capabilities allows for precision measurements that answering these questions will require. Here, we discuss the recent results from the ArgoNeuT experiment as well as the status and prospects for MicroBooNE, both a part of the US-based LArTPC neutrino program.

  11. Argo: A Time-Elastic Time-Division-Multiplexed NOC using Asynchronous Routers

    DEFF Research Database (Denmark)

    Kasapaki, Evangelia; Sparsø, Jens

    2014-01-01

    In this paper we explore the use of asynchronous routers in a time-division-multiplexed (TDM) network-on-chip (NOC), Argo, that is being developed for a multi-processor platform for hard real-time systems. TDM inherently requires a common time reference, and existing TDM-based NOC designs...... are either synchronous or mesochronous. We use asynchronous routers to achieve a simpler, smaller, and more robust, self-timed design. Our design exploits the fact that pipelined asynchronous circuits also behave as ripple FIFOs. Thus, it avoids the need for explicit synchronization FIFOs between the routers...

  12. Virtual Visit to the ATLAS Control Room by High schools of Argos prefecture

    CERN Multimedia

    2014-01-01

    Continuing the subatomic journey that started last year in Argos, Greece, 45 students from 14 high schools of the prefecture will take part in a dedicated ATLAS Masterclass organized by the University of Athens in the framework of the Go-Lab and Inspiring Science Education European projects. Students will learn how to analyse real events from the ATLAS experiment with the use of HYPATIA online applet. They will also have the opportunity to visit the ATLAS control room to learn what it takes for scientists to keep on pushing the boundaries of our understanding of the origins of the universe.

  13. Generació automàtica de codi Java amb ArgoUML

    OpenAIRE

    2007-01-01

    Aquesta memòria presenta un estudi de la generació automàtica de codi Java a partir de diagrames UML amb l'eina ArgoUML. El cicle de vida tradicional del programari presenta alguns problemes com la manca de sincronització entre codi i documentació, poca portabilitat i problemes de interoperabilidad. El paradigma MDA vol solucionar en part aquests problemes fent dels models el centre del desenvolupament del programari i apostant per la generació automàtica de models i codi. Esta memoria pre...

  14. Hardy-Hilbert型积分不等式的一个改进及其应用%An Improvement of the Hardy-Hilbert Type Integral Inequalities and an Application

    Institute of Scientific and Technical Information of China (English)

    贺乐平; 陈小雨; 尚小舟

    2007-01-01

    In this paper, it is shown that Hardy-Hilbert's integral inequality with parameter is improved by means of a sharpening of H(o)lder's inequality. A new inequality is established as follows:∫∞α∫∞αf(x)g(y)/(x+y+2β) dxdywhere R = (Sp (F, h) - Sq (G, h))2, m = min {1/p, 1/q}. As application; an extension of Hardy-Littlewood's inequality is given.

  15. All Publishers are Paper Tigers or Frank Hardy and Bruce Pascoe Give Advice to Budding Short Story Writers.

    Science.gov (United States)

    Shepherd, Greg

    1984-01-01

    Relates Frank Hardy's and Bruce Pascoe's advice to students in a writing class concerning what they believe to be the necessary qualities of a good short story from the editing and publishing standpoint. (HOD)

  16. HARDINESS, WORLD ASSUMPTIONS, MOTIVATION OF ATHLETES OF CONTACT AND NOT CONTACT KINDS OF SPORT

    Directory of Open Access Journals (Sweden)

    Elena Vladimirovna Molchanova

    2017-04-01

    Full Text Available Investigation of personal psychological specificity of athletes of contact (freestyle wrestling and not contact (archery kinds of sport were carried out. Pronounced deviation in hardiness, world assumptions, motives for sport doing were obtained. In particularly, archery athletes possess higher values of hardiness and positively view the world, than wrestlers, while possess less motives for sport doing as “successful for life quality and skills” and “physical perfection”. Thus for athletes not contact kinds of sports rather coping in permanent stressed conditions are predicted. The obtained results are practically important for counseling work of sport psychologists and moreover they could be a basement for training teach programs and challenge stress overcoming programs.

  17. An application of results by Hardy, Ramanujan and Karamata to Ackermannian functions

    Directory of Open Access Journals (Sweden)

    Andreas Weiermann

    2003-06-01

    Full Text Available The Ackermann function is a fascinating and well studied paradigm for a function which eventually dominates all primitive recursive functions. By a classical result from the theory of recursive functions it is known that the Ackermann function can be defined by an unnested or descent recursion along the segment of ordinals below ω ω (or equivalently along the order type of the polynomials under eventual domination. In this article we give a fine structure analysis of such a Ackermann type descent recursion in the case that the ordinals below ω ω are represented via a Hardy Ramanujan style coding. This paper combines number-theoretic results by Hardy and Ramanujan, Karamata's celebrated Tauberian theorem and techniques from the theory of computability in a perhaps surprising way.

  18. Sense of coherence and hardiness as predictors of the mental health of college students.

    Science.gov (United States)

    Knowlden, Adam P; Sharma, Manoj; Kanekar, Amar; Atri, Ashutosh

    Psychological distress has a deleterious impact on the mental health of college students. The purpose of this study was to specify a theoretical, sense of coherence, and hardiness-based regression model to predict the mental health of college students. The instruments employed to build the model included the Kessler Psychological Distress Scale K-6, the Sense of Coherence-29, and the College Student Hardiness Measure. Data were collected from a sample of college students (n = 220) attending a Midwestern university. Each of the theoretical predictors regressed on mental health was deemed significant. Collectively, the significant predictors produced an R2 adjusted value of 0.434 (p mental health in the sample of participants. Qualitative cut-points were developed for each scale to aid in measurement of health promotion and education interventions designed to improve the mental health of college students.

  19. Identification of phenolic compounds in tissues of the novel olive cultivar hardy's mammoth.

    Science.gov (United States)

    Ryan, Danielle; Antolovich, Michael; Herlt, Tony; Prenzler, Paul D; Lavee, Shimon; Robards, Kevin

    2002-11-06

    A methodological approach to phenolic profiling making extensive use of LC-MS with extracted ion chromatograms was applied to extracts of five different olive tissues: pulp, seed, stone, new-season leaves, and old-season leaves. Tissue extracts of the cultivars Hardy's Mammoth, Corregiola, Verdale, and Manzanillo were analyzed by HPLC with UV and ESI MS detection. Chromatograms of samples of green Hardy's Mammoth drupes, a uniquely Australian olive cultivar, were dominated by a large, broad peak. This peak was not attributable to oleuropein, which is usually the dominant phenolic compound in green olive fruit, but the phenolic compound I. This compound was isolated by semipreparative HPLC and characterized by 1D- and 2D-NMR. Extraction studies showed that the compound was not likely to be an artifact of an enzymatic degradation process. Tritium labeling studies were used to establish a possible relationship between the biosynthesis of I and oleuropein.

  20. A cross-national analysis of mental toughness and hardiness in elite university rugby league teams.

    Science.gov (United States)

    Sheard, Michael

    2009-08-01

    The relation between nationality and selected indicators of psychological performance in rugby league football was examined. Mental toughness was assessed using the alternative Psychological Performance Inventory (PPI-A) and hardiness using the Personal Views Survey III-R (PVS III-R). Participants (N = 49, M age = 21.7 yr., SD = 2.3) were male elite-level university rugby league footballers representing Australia and Great Britain. Participants completed the questionnaires in training camp in Sydney, Australia, one week prior to the commencement of an international tournament there in 2006. Multivariate analyses revealed that the Australian Universities players had significantly higher mean scores on Positive Cognition, Visualization, Total Mental Toughness, and Challenge than their opponents from Great Britain. The Australian Universities players were also the tournament winners. The findings concur with previous research indicating superior mental toughness and hardiness are related to successful sport performance. Practical implications focus on the potentiality of ameliorative cultural environments.

  1. Riesz Transforms Associated with Schrödinger Operators Acting on Weighted Hardy Spaces

    Institute of Scientific and Technical Information of China (English)

    Hua Wang∗

    2015-01-01

    Let L=−∆+V be a Schrödinger operator acting on L2(Rn), n≥1, where V 6≡0 is a nonnegative locally integrable function on Rn.In this article, we will intro-duce weighted Hardy spaces HpL (w) associated with L by means of the square function and then study their atomic decomposition theory.We will also show that the Riesz transform ∇L−1/2 associated with L is bounded from our new space HpL (w) to the classical weighted Hardy space Hp(w) when n/(n+1)

  2. Boundedness of multidimensional Hausdorff operator on Hardy-Morrey and Besov-Morrey spaces

    Directory of Open Access Journals (Sweden)

    Belay Mitiku Damtew

    2016-11-01

    Full Text Available Abstract In this paper, we establish some boundedness conditions for the multidimensional Hausdorff operator on the homogeneous Hardy-Morrey and on the Besov-Morrey space, and we extend some results in the recent papers by Jia and Wang, and by Mazzucato, respectively. The main tool we implement in the study is the decomposition of the given function spaces in terms of atoms (smooth atoms for Besov-Morrey space concentrated on dyadic cubes. The atomic decomposition of the classical Hardy space and Besov space is our study model, however, our case is a quite different one. Particularly, we will combine the Calderón reproducing formula with the atomic decomposition when we establish the boundedness of the Hausdorff operator on the Besov-Morrey space.

  3. Deep undercooling of tissue water and winter hardiness limitations in timberline flora.

    Science.gov (United States)

    Becwar, M R; Rajashekar, C; Bristow, K J; Burke, M J

    1981-07-01

    Deep undercooled tissue water, which froze near -40 C, was found in winter collected stem and leaf tissue of the dominant timberline tree species of the Colorado Rocky Mountains, Engelmann spruce (Picea engelmannii (Parry) Engelm.) and subalpine fir (Abies lasiocarpa (Hook.) Nutt.), and in numerous other woody species in and below the subalpine vegetation zone. Previous work on numerous woody plants indicates that deep undercooling in xylem makes probable a -40 C winter hardiness limit in stem tissue. Visual injury determinations and electrolyte loss measurements on stem tissue revealed injury near -40 C associated with the freezing of the deep undercooled stem tissue water. These results suggest that the winter hardiness limit of this woody flora is near -40 C. The relevance of deep undercooling in relation to timberline, the upper elevational limit of the subalpine forest, is discussed.

  4. The Representation of Women in Thomas Hardy's Tess of the d'Urbervilles

    Directory of Open Access Journals (Sweden)

    Sabah Abdul Hameed Shakury

    2016-11-01

    Full Text Available This paper is an examination and exploration of Thomas Hardy’s representation of women in his novel, Tess of the d’Urbervilles. It provides a brief evaluation of the era in which Hardy was writing, placing emphasis on the psycho-sexual intricacies of the late Victorian era and their impact upon the characterization of women. The paper also shows Hardy’s attitudes toward women and how these attitudes affected his representation of women characters. The picture of vigorous womanhood and a victim of forces beyond control is clearly portrayed in Tess, the heroine. Women are presented as sensual creatures and weak. Hardy portrays women affected by the pressure exerted on them by their environment and heredity. Due to their humanity, suffering is inevitable and guilt is a common compassion. Keywords: Tess, sensual, patriarchal, Victorian, representation, independence, identity

  5. Locus of control, hardiness, and emotional intelligence as predictors of waste prevention behaviours

    Directory of Open Access Journals (Sweden)

    Abdollahi, A.

    2015-07-01

    Full Text Available Given that waste generation is an economic and environmental problem for nations and governments, it is necessary that we advance our knowledge on the etiology of waste prevention behaviours. This study aimed to investigate about the relationships between the locus of control, hardiness, emotional intelligence, and waste prevention behaviours. Four hundred and forty participants (226 females and 214 males from Universiti Putra Malaysia completed a survey questionnaire. Structural Equation Modeling (SEM estimated that individuals who were high in emotional intelligence and hardiness showed better waste prevention behaviours as well as those individuals with internal locus of control. Also, the results showed that older students tend to have better waste prevention behaviours. These findings reinforce the importance of personality traits and emotional intelligence in waste prevention behaviours.

  6. Thomas Hardy's Art of Writing the Tragic Fate of Literary Image of Tess in Tess of the d'Urbervilles

    Institute of Scientific and Technical Information of China (English)

    宁会勤

    2009-01-01

    Tess of the d'Urbervilles is an extraordinarily beautiful work,as well as an moving art treasure.In this paper we will analyze Thomas Hardy's art of writing the tragic fate of literary image of Tess in Tess of the d'Urbervilles from the following two aspects:linguistic features;symbolism.So we can share and appreciate Thomas Hardy's aesthetic charm.

  7. A note on testing the Hardy-Weinberg law across strata.

    Science.gov (United States)

    Troendle, J F; Yu, K F

    1994-10-01

    The problem of testing the Hardy-Weinberg law when the data are stratified in K strata is considered. Previous methods lose power when the departure from the law is irregular from stratum to stratum. Two methods based on the squared distance are proposed to overcome this problem. Simulations show that the new methods can have a dramatic improvement over the previous methods. The methods are applied to red cell glyoxalase genotype data from populations in India.

  8. Problem-Solving Skills Appraisal Mediates Hardiness and Suicidal Ideation among Malaysian Undergraduate Students

    OpenAIRE

    Abbas Abdollahi; Mansor Abu Talib; Siti Nor Yaacob; Zanariah Ismail

    2015-01-01

    Objectives Recent evidence suggests that suicidal ideation is increased among university students, it is essential to increase our knowledge concerning the etiology of suicidal ideation among university students. This study was conducted to examine the relationships between problem-solving skills appraisal, hardiness, and suicidal ideation among university students. In addition, this study was conducted to examine problem-solving skills appraisal (including the three components of problem-sol...

  9. Military Applications of Curved Focal Plane Arrays Developed by the HARDI Program

    Science.gov (United States)

    2011-01-01

    considered one of the main founders of geometrical optics, modern photography, and cinematography . Among his inventions are the Petzval portrait lens... special frequencies, (b) the variation of intensity as a function of special frequency, (c) the image variation of intensity as a result of an...parameters for the HARDI systems to be designed for various applications. To do this, we needed a toolcomputer codeto study the effects of various

  10. EXISTENCE AND MULTIPLICITY RESULTS FOR ELLIPTIC EQUATIONS WITH CRITICAL SOBOLEV EXPONENT AND HARDY TERM

    Institute of Scientific and Technical Information of China (English)

    Shang Yanying; Tang Chunlei

    2007-01-01

    This paper concerns the existence and multiplicity of solutions for some semilinear elliptic equations with critical Sobolev exponent,Hardy term and the sublinear nonlinearity at origin.By using Ekeland's variational principle,we conclude the existence of nontrivial solution for this problem,the Clark's critical point theorem is used to prove the existence of infinitely many solutions for this problem with odd nonlinearity.

  11. The Mediating Effects of Hardiness on Resilience in Repatriated Vietnam-Era Prisoners of War

    Science.gov (United States)

    2015-11-30

    Pengilly and Dowd, 2000). More recently, when all three factors were entered as mediators of the psychopathy -anxiety relationship, only the indirect...Rivers Press. Sandvik, A.M., Hansen, A.L., Hystad, S.W., Johnsen, B.H. & Bartone, P.T. (2015). Psychopathy , anxiety, and resiliency – Psychological...hardiness as a mediator of the psychopathy -anxiety relationship in a prison setting. Personality and Individual Difference, 72, 30-34. Segovia, F

  12. Assessing family resources: validation of the Swedish version of the Family Hardiness Index.

    Science.gov (United States)

    Persson, Carina; Benzein, Eva; Årestedt, Kristofer

    2016-12-01

    All families face normative transitions. Some are perceived as stressful and calls for family resources to maintain or restore family well-being. In times of illness, families also need to develop strengths and capabilities to enhance family well-being. The way these are developed is related to family hardiness. Family hardiness is thus seen as a family resource, and the Family Hardiness Index (FHI) was developed to measure family stress resistance and adaptation resources. The index was not available in Swedish and no extensive international psychometric evaluation was found. Therefore, the aim was to translate and validate the Swedish version of the FHI. The study was approved by a Regional Ethical Review Board. Data from 174 Swedish participants, family members to persons with cognitive dysfunctions (n = 95) and nursing students (n = 79) were included. Family members were enrolled in outpatient clinics in primary care and rehabilitation, and nursing students at a nursing school. Psychometric properties were evaluated through calculations of missing data, distributions of item and scale scores, item correlations, Cronbach's alpha, confirmatory factor analyses and correlations with theoretically related constructs. Sample scores had acceptable data quality, internal consistency for the FHI total scale was satisfactory (α = 0.86), and construct validity was supported. Our findings cast some doubt on the intended interpretation since confirmatory factor analyses showed that a modified four-subscale version, excluding one subscale, showed best fit. The Control subscale lacked important psychometric properties in terms of homogeneity, internal consistency and construct validity. The sample size was probably sufficiently large for the factor analyses, but the subgroup analyses should be treated with caution. The conclusion is that the Swedish version of the FHI is a promising scale for assessing family hardiness, but more solid evidence for the factor structure in

  13. A calibration method of Argo floats based on multiple regression analysis

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Argo floats are free-moving floats that report vertical profiles of salinity, temperature and pressure at regular time intervals. These floats give good measurements of temperature and pressure, but salinity measurements may show significant sensor drifting with time. It is found that sensor drifting with time is not purely linear as presupposed by Wong (2003). A new method is developed to calibrate conductivity data measured by Argo floats. In this method, Wong's objective analysis method was adopted to estimate the background climatological salinity field on potential temperature surfaces from nearby historical data in WOD01. Furthermore, temperature and time factors are taken into account, and stepwise regression was used for a time-varying or temperature-varying slope in potential conductivity space to correct the drifting in these profiling float salinity data. The result shows salinity errors using this method are smaller than that of Wong's method, the quantitative and qualitative analysis of the conductivity sensor can be carried out with our method.

  14. Improvement of Ocean State Estimation by Assimilating Mapped Argo Drift Data

    Directory of Open Access Journals (Sweden)

    Shuhei Masuda

    2014-01-01

    Full Text Available We investigated the impact of assimilating a mapped dataset of subsurface ocean currents into an ocean state estimation. We carried out two global ocean state estimations from 2000 to 2007 using the K7 four-dimensional variational data synthesis system, one of which included an additional map of climatological geostrophic currents estimated from the global set of Argo floats. We assessed the representativeness of the volume transport in the two exercises. The assimilation of Argo ocean current data at only one level, 1000 dbar depth, had subtle impacts on the estimated volume transports, which were strongest in the subtropical North Pacific. The corrections at 10°N, where the impact was most notable, arose through the nearly complete offset of wind stress curl by the data synthesis system in conjunction with the first mode baroclinic Rossby wave adjustment. Our results imply that subsurface current data can be effective for improving the estimation of global oceanic circulation by a data synthesis.

  15. The analog Resistive Plate Chamber detector of the ARGO-YBJ experiment

    CERN Document Server

    Bartoli, B; Bi, X J; Cao, Z; Catalanotti, S; Chen, S Z; Chen, T L; Cui, S W; Dai, B Z; D'Amone, A; Danzengluobu,; De Mitri, I; Piazzoli, B D'Ettorre; Di Girolamo, T; Di Sciascio, G; Feng, C F; Feng, Zhaoyang; Feng, Zhenyong; Gou, Q B; Guo, Y Q; He, H H; Hu, Haibing; Hu, Hongbo; Iacovacci, M; Iuppa, R; Jia, H Y; Labaciren,; Li, H J; Liu, C; Liu, J; Liu, M Y; Lu, H; Ma, L L; Ma, X H; Mancarella, G; Mari1, S M; Marsella, G; Mastroianni, S; Montini, P; Ning, C C; Perrone, L; Pistilli, P; Salvini1, P; Santonico, R; Shen, P R; Sheng, X D; Shi, F; Surdo, A; Tan, Y H; Vallania, P; Vernetto, S; Vigorito, C; Wang, H; Wu, C Y; Wu, H R; Xue, L; Yang, Q Y; Yang, X C; Yao, Z G; Yuan, A F; Zha, M; Zhang, H M; Zhang, L; Zhang, X Y; Zhang, Y; Zhao, J; Zhaxiciren,; Zhaxisangzhu,; Zhou, X X; Zhu, F R; Zhu, Q Q

    2015-01-01

    The ARGO-YBJ experiment has been in stable data taking from November 2007 till February 2013 at the YangBaJing Cosmic Ray Observatory (4300 m a.s.l.). The detector consists of a single layer of Resistive Plate Chambers (RPCs) ( about 6700 m^2}) operated in streamer mode. The signal pick-up is obtained by means of strips facing one side of the gas volume. The digital readout of the signals, while allows a high space-time resolution in the shower front reconstruction, limits the measurable energy to a few hundred TeV. In order to fully investigate the 1-10 PeV region, an analog readout has been implemented by instrumenting each RPC with two large size electrodes facing the other side of the gas volume. Since December 2009 the RPC charge readout has been in operation on the entire central carpet (about 5800 m^2). In this configuration the detector is able to measure the particle density at the core position where it ranges from tens to many thousands of particles per m^2. Thus ARGO-YBJ provides a highly detailed...

  16. Genetic and environmental influences on leaf phenology and cold hardiness of native and introduced riparian trees

    Science.gov (United States)

    Friedman, J.M.; Roelle, J.E.; Cade, B.S.

    2011-01-01

    To explore the roles of plasticity and genetic variation in the response to spatial and temporal climate variation, we established a common garden consisting of paired collections of native and introduced riparian trees sampled along a latitudinal gradient. The garden in Fort Collins, Colorado (latitude 40.6??N), included 681 native plains cottonwood (Populus deltoides subsp. monilifera) and introduced saltcedar (Tamarix ramosissima, T. chinensis and hybrids) collected from 15 sites at 29.2-47.6??N in the central United States. In the common garden both species showed latitudinal variation in fall, but not spring, leaf phenology, suggesting that the latitudinal gradient in fall phenology observed in the field results at least in part from inherited variation in the critical photoperiod, while the latitudinal gradient in spring phenology observed in the field is largely a plastic response to the temperature gradient. Populations from higher latitudes exhibited earlier bud set and leaf senescence. Cold hardiness varied latitudinally in both fall and spring for both species. For cottonwood, cold hardiness began earlier and ended later in northern than in southern populations. For saltcedar northern populations were hardier throughout the cold season than southern populations. Although cottonwood was hardier than saltcedar in midwinter, the reverse was true in late fall and early spring. The latitudinal variation in fall phenology and cold hardiness of saltcedar appears to have developed as a result of multiple introductions of genetically distinct populations, hybridization and natural selection in the 150 years since introduction. ?? 2011 US Government.

  17. Genetic and environmental influences on leaf phenology and cold hardiness of native and introduced riparian trees.

    Science.gov (United States)

    Friedman, Jonathan M; Roelle, James E; Cade, Brian S

    2011-11-01

    To explore the roles of plasticity and genetic variation in the response to spatial and temporal climate variation, we established a common garden consisting of paired collections of native and introduced riparian trees sampled along a latitudinal gradient. The garden in Fort Collins, Colorado (latitude 40.6°N), included 681 native plains cottonwood (Populus deltoides subsp. monilifera) and introduced saltcedar (Tamarix ramosissima, T. chinensis and hybrids) collected from 15 sites at 29.2-47.6°N in the central United States. In the common garden both species showed latitudinal variation in fall, but not spring, leaf phenology, suggesting that the latitudinal gradient in fall phenology observed in the field results at least in part from inherited variation in the critical photoperiod, while the latitudinal gradient in spring phenology observed in the field is largely a plastic response to the temperature gradient. Populations from higher latitudes exhibited earlier bud set and leaf senescence. Cold hardiness varied latitudinally in both fall and spring for both species. For cottonwood, cold hardiness began earlier and ended later in northern than in southern populations. For saltcedar northern populations were hardier throughout the cold season than southern populations. Although cottonwood was hardier than saltcedar in midwinter, the reverse was true in late fall and early spring. The latitudinal variation in fall phenology and cold hardiness of saltcedar appears to have developed as a result of multiple introductions of genetically distinct populations, hybridization and natural selection in the 150 years since introduction.

  18. Local randomness in Hardy's correlations: implications from the information causality principle

    Energy Technology Data Exchange (ETDEWEB)

    Gazi, MD. Rajjak [Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B T Road, Kolkata-700 108 (India); Rai, Ashutosh [S N Bose National Center for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata-700 098 (India); Kunkri, Samir [Mahadevananda Mahavidyalaya, Monirampore, Barrackpore, North 24 Parganas 700 120 (India); Rahaman, Ramij, E-mail: rajjakgazimath@gmail.co, E-mail: arai@bose.res.i, E-mail: skunkri@yahoo.co, E-mail: ramij.rahaman@ii.uib.n [Selmer Center, Department of Informatics, University of Bergen, Bergen, PO Box-7803, N-5020 (Norway)

    2010-11-12

    Study of non-local correlations in terms of Hardy's argument has been quite popular in quantum mechanics. Hardy's non-locality argument depends on some kind of asymmetry, but a two-qubit maximally entangled state, being symmetric, does not exhibit this kind of non-locality. Here we ask the following question: can this feature be explained by some principle outside quantum mechanics? The no-signaling condition does not provide a solution. But, interestingly, the information causality principle (Pawlowski et al 2009 Nature 461 1101) offers an explanation. It shows that any generalized probability theory which gives completely random results for local dichotomic observable, cannot provide Hardy's non-local correlation if it is restricted by a necessary condition for respecting the information causality principle. In fact, the applied necessary condition imposes even more restrictions on the local randomness of measured observable. Still, there are some restrictions imposed by quantum mechanics that are not reproduced from the considered information causality condition. (fast track communication)

  19. The combined influence of hardiness and cohesion on mental health in a military peacekeeping mission: A prospective study.

    Science.gov (United States)

    Thomassen, Ådne G; Hystad, Sigurd W; Johnsen, Bjørn Helge; Johnsen, Grethe E; Laberg, Jon C; Eid, Jarle

    2015-10-01

    A large number of studies have shown that hardiness and cohesion are associated with mental health in a military context. However, most of them are presented without controlling for baseline mental health symptoms, which is their most significant source of error. The present study investigates the combined effect of hardiness and cohesion in a prospective design, controlling for baseline levels of symptoms among Norwegian personnel serving in a peacekeeping operation in Kosovo. Multivariate regression analyses were performed in which self-reported mental health complaints were regressed on our explanatory variables. Our findings suggest that both cohesion and hardiness contributed to increased stress resiliency, as measured by a lower level of reported mental health complaints. Our baseline measure of mental health accounted for a larger proportion of the variance than our other predictors. A significant interaction between cohesion and hardiness suggested a combined effect, over and above the individual contributions of the predictors. For individuals who scored high on hardiness, cohesion levels did not influence levels of mental health complaints. Individuals who scored low on hardiness, on the other hand, reported lower levels of mental health complaints when cohesion levels were high.

  20. From satellite altimetry to operational oceanography and Argo: three revolutions in oceanography (Fridtjof Nansen Medal Lecture)

    Science.gov (United States)

    Le Traon, P. Y.

    2012-04-01

    The launch of the US/French mission Topex/Poseidon (T/P) (CNES/NASA) in August 1992 was the start of a revolution in oceanography. For the first time, a very precise altimeter system optimized for large scale sea level and ocean circulation observations was flying. Topex/Poseidon revolutionized our vision and understanding of the ocean. It provided new views of the large scale seasonal and interannual sea level and ocean circulation variations. T/P alone could not observe the mesoscale circulation. In the 1990s, the ESA satellites ERS-1/2 were flying simultaneously with T/P. The ERS-1/2 orbit was well adapted for mesoscale circulation sampling but the orbit determination and altimeter performance were much less precise than for T/P. We demonstrated that we could use T/P as a reference mission for ERS-1/2 and bring the ERS-1/2 data to an accuracy level comparable to T/P. This was an essential first step for the merging of T/P and ERS-1/2. The second step required the development of a global optimal interpolation method. Near real time high resolution global sea level anomaly maps were then derived. These maps have been operationally produced as part of the SSALTO/DUACS system for the last 15 years. They are now widely used by the oceanographic community and have contributed to a much better understanding and recognition of the role and importance of mesoscale dynamics. The unique capability of satellite altimetry to observe the global ocean in near real time at high resolution was essential to the development of global ocean forecasting, a second revolution in oceanography. The Global Ocean Data Assimilation Experiment (GODAE) (1998-2008) was phased with the T/P and ERS-1/2 successors (Jason-1 and ENVISAT) and was instrumental in the development of global operational oceanography capabilities. Europe played a leading role in GODAE. In 1998, the global in-situ observing system was inadequate for the global scope of GODAE. This led to the development of Argo, an

  1. Ammonite biostratigraphy of the uppermost Tithonian, Berriasian, and lower Valanginian along the Río Argos (Caravaca, SE Spain)

    NARCIS (Netherlands)

    Hoedemaeker, P.J.

    1982-01-01

    This paper deals with the ammonite biostratigraphy of the lower 312 m of the Miravetes Formation (sections Y and Z) exposed 500 m north and northwest of Los Miravetes along the Río Argos, 3 km west of Caravaca (SE Spain). This sequence embraces the uppermost Tithonian, Berriasian, and lower Valangin

  2. The pre-Argo ocean reanalyses may be seriously affected by the spatial coverage of moored buoys

    Science.gov (United States)

    Sivareddy, S.; Paul, Arya; Sluka, Travis; Ravichandran, M.; Kalnay, Eugenia

    2017-04-01

    Assimilation methods, meant to constrain divergence of model trajectory from reality using observations, do not exactly satisfy the physical laws governing the model state variables. This allows mismatches in the analysis in the vicinity of observation locations where the effect of assimilation is most prominent. These mismatches are usually mitigated either by the model dynamics in between the analysis cycles and/or by assimilation at the next analysis cycle. However, if the observations coverage is limited in space, as it was in the ocean before the Argo era, these mechanisms may be insufficient to dampen the mismatches, which we call shocks, and they may remain and grow. Here we show through controlled experiments, using real and simulated observations in two different ocean models and assimilation systems, that such shocks are generated in the ocean at the lateral boundaries of the moored buoy network. They thrive and propagate westward as Rossby waves along these boundaries. However, these shocks are essentially eliminated by the assimilation of near-homogenous global Argo distribution. These findings question the fidelity of ocean reanalysis products in the pre-Argo era. For example, a reanalysis that ignores Argo floats and assimilates only moored buoys, wrongly represents 2008 as a negative Indian Ocean Dipole year.

  3. The pre-Argo ocean reanalyses may be seriously affected by the spatial coverage of moored buoys

    Science.gov (United States)

    Sivareddy, S.; Paul, Arya; Sluka, Travis; Ravichandran, M.; Kalnay, Eugenia

    2017-01-01

    Assimilation methods, meant to constrain divergence of model trajectory from reality using observations, do not exactly satisfy the physical laws governing the model state variables. This allows mismatches in the analysis in the vicinity of observation locations where the effect of assimilation is most prominent. These mismatches are usually mitigated either by the model dynamics in between the analysis cycles and/or by assimilation at the next analysis cycle. However, if the observations coverage is limited in space, as it was in the ocean before the Argo era, these mechanisms may be insufficient to dampen the mismatches, which we call shocks, and they may remain and grow. Here we show through controlled experiments, using real and simulated observations in two different ocean models and assimilation systems, that such shocks are generated in the ocean at the lateral boundaries of the moored buoy network. They thrive and propagate westward as Rossby waves along these boundaries. However, these shocks are essentially eliminated by the assimilation of near-homogenous global Argo distribution. These findings question the fidelity of ocean reanalysis products in the pre-Argo era. For example, a reanalysis that ignores Argo floats and assimilates only moored buoys, wrongly represents 2008 as a negative Indian Ocean Dipole year. PMID:28429748

  4. Small Berriasian, lower Valanginian and Barremian heteromorphic ammonites from the Río Argos succession (Caravaca, southeast Spain)

    NARCIS (Netherlands)

    Vasícek, V; Hoedemaeker, P.J.

    2003-01-01

    The small heteromorphic ammonites from the Berriasian, lower Valanginian and Barremian strata of the Río Argos succession (west of Caravaca, southeast Spain) are described. One new genus is introduced, Sabaudiella (type species Ancyloceras sabaudianum Pictet & de Loriol, 1858), and three new species

  5. A Southern Ocean variability study using the Argo-based Model for Investigation of the Global Ocean (AMIGO)

    Science.gov (United States)

    Lebedev, Konstantin

    2017-04-01

    The era of satellite observations of the ocean surface that started at the end of the 20th century and the development of the Argo project in the first years of the 21st century, designed to collect information of the upper 2000 m of the ocean using satellites, provides unique opportunities for continuous monitoring of the Global Ocean state. Starting from 2005, measurements with the Argo floats have been performed over the majority of the World Ocean. In November 2007, the Argo program reached coverage of 3000 simultaneously operating floats (one float in a three-degree square) planned during the development of the program. Currently, 4000 Argo floats autonomously profile the upper 2000-m water column of the ocean from Antarctica to Spitsbergen increasing World Ocean temperature and salinity databases by 12000 profiles per month. This makes it possible to solve problems on reconstructing and monitoring the ocean state on an almost real-time basis, study the ocean dynamics, obtain reasonable estimates of the climatic state of the ocean in the last decade and estimate existing intraclimatic trends. We present the newly developed Argo-Based Model for Investigation of the Global Ocean (AMIGO), which consists of a block for variational interpolation of the profiles of drifting Argo floats to a regular grid and a block for model hydrodynamic adjustment of variationally interpolated fields. Such a method makes it possible to obtain a full set of oceanographic characteristics - temperature, salinity, density, and current velocity - using irregularly located Argo measurements (the principle of the variational interpolation technique entails minimization of the misfit between the interpolated fields defined on the regular grid and irregularly distributed data; hence the optimal solution passes as close to the data as possible). The simulations were performed for the entire globe limited in the north by 85.5° N using 1° grid spacing in both longitude and latitude. At the

  6. Present status and development trend of Argos System%Argos系统的发展现状与趋势

    Institute of Scientific and Technical Information of China (English)

    宋飞; 冯旭哲

    2012-01-01

    Argos系统作为具备单星定位能力的卫星通信系统,具有功耗低、体积小、全球覆盖以及数据实时性较好等优点,目前在对自然环境的科学观测中得到了广泛应用.从系统运行的角度,阐述了组成系统的平台部分、空间部分和地面部分;结合第二代和第三代Argos系统,分析了平台终端、空间卫星、地面系统以及主要应用四个方面的发展现状;最后对Argos系统发展趋势进行了探讨和展望.%As a satellite communication system with capability of the single-satellite positioning, Argos system has advantages of low power consumption, small size, global coverage and good real-time ability for data transmission, etc. Due to above merits, Argos system is widely applied in the scientific observation for the marine environment. The platform section, the space segment and the ground segment of which the Argos system consists, are described from the view of system operation. With a comprehensive consideration of the second and the third generation Argos system, the development status of such four aspects as the platform terminal, space satellites, the ground system and the main application field, are analyzed. Finally, an outlook for the development trend of the Argos system is given.

  7. The Topology of the l-Arginine Exporter ArgO Conforms to an Nin-Cout Configuration in Escherichia coli: Requirement for the Cytoplasmic N-Terminal Domain, Functional Helical Interactions, and an Aspartate Pair for ArgO Function.

    Science.gov (United States)

    Pathania, Amit; Gupta, Arvind Kumar; Dubey, Swati; Gopal, Balasubramanian; Sardesai, Abhijit A

    2016-12-01

    ArgO and LysE are members of the LysE family of exporter proteins and ordinarily mediate the export of l-arginine (Arg) in Escherichia coli and l-lysine (Lys) and Arg in Corynebacterium glutamicum, respectively. Under certain conditions, ArgO also mediates Lys export. To delineate the arrangement of ArgO in the cytoplasmic membrane of E. coli, we have employed a combination of cysteine accessibility in situ, alkaline phosphatase fusion reporters, and protein modeling to arrive at a topological model of ArgO. Our studies indicate that ArgO assumes an Nin-Cout configuration, potentially forming a five-transmembrane helix bundle flanked by a cytoplasmic N-terminal domain (NTD) comprising roughly its first 38 to 43 amino acyl residues and a short periplasmic C-terminal region (CTR). Mutagenesis studies indicate that the CTR, but not the NTD, is dispensable for ArgO function in vivo and that a pair of conserved aspartate residues, located near the opposing edges of the cytoplasmic membrane, may play a pivotal role in facilitating transmembrane Arg flux. Additional studies on amino acid substitutions that impair ArgO function in vivo and their derivatives bearing compensatory amino acid alterations indicate a role for intramolecular interactions in the Arg export mechanism, and some interactions are corroborated by normal-mode analyses. Lastly, our studies suggest that ArgO may exist as a monomer in vivo, thus highlighting the requirement for intramolecular interactions in ArgO, as opposed to interactions across multiple ArgO monomers, in the formation of an Arg-translocating conduit.

  8. From satellite altimetry to Argo and operational oceanography: three revolutions in oceanography

    Science.gov (United States)

    Le Traon, P. Y.

    2013-10-01

    The launch of the French/US mission Topex/Poseidon (T/P) (CNES/NASA) in August 1992 was the start of a revolution in oceanography. For the first time, a very precise altimeter system optimized for large-scale sea level and ocean circulation observations was flying. T/P alone could not observe the mesoscale circulation. In the 1990s, the ESA satellites ERS-1/2 were flying simultaneously with T/P. Together with my CLS colleagues, we demonstrated that we could use T/P as a reference mission for ERS-1/2 and bring the ERS-1/2 data to an accuracy level comparable to T/P. Near-real-time high-resolution global sea level anomaly maps were then derived. These maps have been operationally produced as part of the SSALTO/DUACS system for the last 15 yr. They are now widely used by the oceanographic community and have contributed to a much better understanding and recognition of the role and importance of mesoscale dynamics. Altimetry needs to be complemented with global in situ observations. At the end of the 90s, a major international initiative was launched to develop Argo, the global array of profiling floats. This has been an outstanding success. Argo floats now provide the most important in situ observations to monitor and understand the role of the ocean on the earth climate and for operational oceanography. This is a second revolution in oceanography. The unique capability of satellite altimetry to observe the global ocean in near-real-time at high resolution and the development of Argo were essential for the development of global operational oceanography, the third revolution in oceanography. The Global Ocean Data Assimilation Experiment (GODAE) was instrumental in the development of the required capabilities. This paper provides an historical perspective on the development of these three revolutions in oceanography which are very much interlinked. This is not an exhaustive review and I will mainly focus on the contributions we made together with many colleagues and

  9. From satellite altimetry to Argo and operational oceanography: three revolutions in oceanography

    Directory of Open Access Journals (Sweden)

    P. Y. Le Traon

    2013-10-01

    Full Text Available The launch of the French/US mission Topex/Poseidon (T/P (CNES/NASA in August 1992 was the start of a revolution in oceanography. For the first time, a very precise altimeter system optimized for large-scale sea level and ocean circulation observations was flying. T/P alone could not observe the mesoscale circulation. In the 1990s, the ESA satellites ERS-1/2 were flying simultaneously with T/P. Together with my CLS colleagues, we demonstrated that we could use T/P as a reference mission for ERS-1/2 and bring the ERS-1/2 data to an accuracy level comparable to T/P. Near-real-time high-resolution global sea level anomaly maps were then derived. These maps have been operationally produced as part of the SSALTO/DUACS system for the last 15 yr. They are now widely used by the oceanographic community and have contributed to a much better understanding and recognition of the role and importance of mesoscale dynamics. Altimetry needs to be complemented with global in situ observations. At the end of the 90s, a major international initiative was launched to develop Argo, the global array of profiling floats. This has been an outstanding success. Argo floats now provide the most important in situ observations to monitor and understand the role of the ocean on the earth climate and for operational oceanography. This is a second revolution in oceanography. The unique capability of satellite altimetry to observe the global ocean in near-real-time at high resolution and the development of Argo were essential for the development of global operational oceanography, the third revolution in oceanography. The Global Ocean Data Assimilation Experiment (GODAE was instrumental in the development of the required capabilities. This paper provides an historical perspective on the development of these three revolutions in oceanography which are very much interlinked. This is not an exhaustive review and I will mainly focus on the contributions we made together with many

  10. CRED SVP Drifting Buoy Argos_ID 24961 Data, South of Necker, in the Northwestern Hawaiian Islands, 200109-200406 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24961 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  11. CRED SVP Drifting Buoy Argos_ID 24756 Data, 10mn East of Upolu, in the American Samoa, 200307-200310 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24756 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  12. CRED SVP Drifting Buoy Argos_ID 30350 Data near Laysan Island in the NW Hawaiian Islands, 200209-200412 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30350 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  13. CRED SVP Drifting Buoy Argos_ID 44770 Data, NW Tutuila in the American Samoa, 200402-200503 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 44770 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  14. Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study

    Directory of Open Access Journals (Sweden)

    Caixia Shao

    2015-01-01

    Full Text Available A regional ocean reanalysis system of China coastal waters and adjacent seas, called CORA (China ocean reanalysis, has been recently developed at the National Marine Data and Information Service (NMDIS. In this study, based on CORA, the impact of Argo profiles on the regional reanalysis is evaluated using a twin-experiment approach. It is found that, by assimilating Argo observations, the reanalysis quality is much improved: the root mean square (RMS error of temperature and salinity can be further reduced by about 10% and the RMS error of current can be further reduced by 18%, compared to the case only assimilating conventional in situ temperature and salinity observations. Consistent with the unique feature of Argo observations, the temperature is improved in all levels and the largest improvement of salinity happens in the deep ocean. Argo profile data have a significant impact on the regional ocean reanalysis through improvements of both hydrographic and dynamic fields.

  15. CRED SVP Drifting Buoy Argos_ID 28078 Data, Stingray Shoals in the Marianas Archipelago, 200308-200412 (NODC Accession 0067473)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 28078 was deployed in the region of Marianas Archipelago to assess ocean currents and sea surface temperature. SVP drifter data files...

  16. CRED SVP Drifting Buoy Argos_ID 29098 Data, Necker Island in the Northwestern Hawaiian Islands, 200307-200410 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29098 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  17. CRED SVP Drifting Buoy Argos_ID 24946 Data, north of Niihau, in the NW Hawaiian Islands, 200110-200209 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24946 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  18. CRED SVP Drifting Buoy Argos_ID 29102 Data, Lisianski Island in the Northwestern Hawaiian Islands, 200307-200310 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29102 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  19. CRED SVP Drifting Buoy Argos_ID 30288 Data near Necker in the NW Hawaiian Islands, 200209-200404 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30288 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  20. CRED SVP Drifting Buoy Argos_ID 29106 Data, Laysan Island in the Northwestern Hawaiian Islands, 200307-200411 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29106 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  1. CRED SVP Drifting Buoy Argos_ID 24754 Data, between Ofu and Tutuila, in the American Samoa, 200307-200308 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24754 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  2. CRED SVP Drifting Buoy Argos_ID 44769 Data, Enroute to Manua from Tutuila, in the American Samoa, 200402-200406 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 44769 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  3. CRED SVP Drifting Buoy Argos_ID 30311 Data between Nihoa and Niihau in the NW Hawaiian Islands, 200210-200402 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30311 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  4. CRED SVP Drifting Buoy Argos_ID 29097 Data near Nihoa Island, in the Northwestern Hawaiian Islands, 200307-200412 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29097 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  5. CRED SVP Drifting Buoy Argos_ID 30111 Data, French Frigate Shoals in the Northwestern Hawaiian Islands, 200210-200309 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 30111 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  6. CRED SVP Drifting Buoy Argos_ID 24955 Data at Bank 8, in the NW Hawaiian Islands, 200110-200504 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24955 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  7. CRED SVP Drifting Buoy Argos_ID 24953 Data at Laysan/Pioneer Bank in the NW Hawaiian Islands, 200110-200504 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24953 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  8. CRED SVP Drifting Buoy Argos_ID 24949 Data, between Maro Reef and Raita Bank in the Northwestern Hawaiian Islands , 200109-200309 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24949 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  9. CRED SVP Drifting Buoy Argos_ID 24958 Data at Southeast Brooks Bank in the NW Hawaiian Islands, 200110-200409 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 24958 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  10. CRED SVP Drifting Buoy Argos_ID 29109 Data on the south side of Swains Island, American Samoa , 200402-200606 (NODC Accession 0067474)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29109 was deployed in the region of American Samoa to assess ocean currents and sea surface temperature. SVP drifter data files contain...

  11. CRED SVP Drifting Buoy Argos_ID 29101 Data, Kure Atoll in the Northwestern Hawaiian Islands, 200308-200509 (NODC Accession 0049436)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CRED SVP drifter Argos_ID 29101 was deployed in the region of NW Hawaiian Islands to assess ocean currents and sea surface temperature. SVP drifter data files...

  12. Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study

    OpenAIRE

    Caixia Shao; Lili Xuan; Yingzhi Cao; Xiaojian Cui; Siyu Gao

    2015-01-01

    A regional ocean reanalysis system of China coastal waters and adjacent seas, called CORA (China ocean reanalysis), has been recently developed at the National Marine Data and Information Service (NMDIS). In this study, based on CORA, the impact of Argo profiles on the regional reanalysis is evaluated using a twin-experiment approach. It is found that, by assimilating Argo observations, the reanalysis quality is much improved: the root mean square (RMS) error of temperature and salinity can b...

  13. On the warm pool dynamics in the southeastern Arabian Sea during April – May 2005 based on the satellite remote sensing and ARGO float data

    Digital Repository Service at National Institute of Oceanography (India)

    Murty, V.S.N.; Krishna, S.M.; Nagaraju, A.; Somayajulu, Y.K.; RameshBabu, V.; Sengupta, D; Sindu, P.R.; Ravichandran, M.; Rajesh, G.

    profiles from an ARGO float (ID No. 2900345) in a 3°x1° box closer to ARMEX-II buoy (8.3°N, 72.68°E) in the SEAS during January – September 2005 revealed evolution of warm pool (SST>28°C) in spring 2005. The Argo data derived D20 (depth of 20°C isotherm...

  14. GRBs search results with the ARGO-YBJ experiment operated in Scaler Mode

    CERN Document Server

    Sciascio, G D

    2006-01-01

    The ARGO-YBJ experiment is almost completely installed at the YangBaJing Cosmic Ray Laboratory (4300 m a.s.l., Tibet, P.R. China). The lower energy limit of the detector (E $\\sim$ 1 GeV) is reached with the scaler mode, i.e., recording the single particle rate at fixed time intervals. In this technique, due to its high altitude location and large area ($\\sim$ 6700 m$^2$), this experiment is the most sensitive among all present and past ground-based detectors. In the energy range under investigation, signals due to local (e.g. solar GLEs) and cosmological (e.g. GRBs) phenomena are expected as significant enhancements of the counting rate over the background. Results on the search for GRBs in coincidence with satellite detections are presented.

  15. Measurement of the cosmic rays light component (p+He) primary spectrum with ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Panico, B., E-mail: beatrice.panico@roma2.infn.it [Dipartimento di Fisica, Universita Roma ' Tor Vergata' , Via della Ricerca Scientifica 1, Roma (Italy); INFN, Sezione Roma Tor Vergata, Via della Ricerca Scientifica 1, Roma (Italy); Di Sciascio, G. [INFN, Sezione Roma Tor Vergata, Via della Ricerca Scientifica 1, Roma (Italy)

    2012-11-11

    The ARGO-YBJ experiment, located at the Yangbajing Cosmic Ray Laboratory (Tibet, 4300 m a.s.l., 606 g/cm{sup 2}) has an high segmentation that allows the detection of air showers with greater detail and lower energy threshold (a few hundred GeV) compared to other EAS arrays. The spectrum of the primary cosmic ray light (p+He) component in the energy range {approx}10-100TeV is measured selecting quasi-vertical showers ({theta}<15 Degree-Sign ) with the reconstructed core position located in a 40 Multiplication-Sign 40 m{sup 2} fiducial area. The results are compared with other measurements carried out with direct methods.

  16. Argo floats revealing bimodality of large-scale mid-depth circulation in the North Atlantic

    Institute of Scientific and Technical Information of China (English)

    CHU Peter C; IVANOV Leonid M; MELNICHENKO Oleg V; LI Rongfeng

    2008-01-01

    Analysis of Argo float trajectories at 1000 m and temperature at 950 m in the North Atlantic between November 2003 and January 2005 demonstrates the existence of two different circulation modes with fast transition between them. Each mode has a pair of cy-clonic - anticyclonic gyres. The difference is the location of the cyclonic gyre. The cyclonic gyre stretches from southeast to north-west in the first mode and from the southwest to the northeast in the second mode. The observed modes strongly affect the heat and salt transport in the North Atlantic. In particular, the second mode slows down the westward transport of the warm and saline water from the Mediterranean Sea.

  17. Overview of the ARGOS X-ray framing camera for Laser MegaJoule

    Energy Technology Data Exchange (ETDEWEB)

    Trosseille, C., E-mail: clement.trosseille@cea.fr; Aubert, D.; Auger, L.; Bazzoli, S.; Brunel, P.; Burillo, M.; Chollet, C.; Jasmin, S.; Maruenda, P.; Moreau, I.; Oudot, G.; Raimbourg, J.; Soullié, G.; Stemmler, P.; Zuber, C. [CEA, DAM, DIF, F-91297 Arpajon (France); Beck, T. [CEA, DEN, CADARACHE, F-13108 St Paul lez Durance (France); Gazave, J. [CEA, DAM, CESTA, F-33116 Le Barp (France)

    2014-11-15

    Commissariat à l’Énergie Atomique et aux Énergies Alternatives has developed the ARGOS X-ray framing camera to perform two-dimensional, high-timing resolution imaging of an imploding target on the French high-power laser facility Laser MegaJoule. The main features of this camera are: a microchannel plate gated X-ray detector, a spring-loaded CCD camera that maintains proximity focus in any orientation, and electronics packages that provide remotely-selectable high-voltages to modify the exposure-time of the camera. These components are integrated into an “air-box” that protects them from the harsh environmental conditions. A miniaturized X-ray generator is also part of the device for in situ self-testing purposes.

  18. Deep ocean impact of a Madden-Julian oscillation observed by Argo floats.

    Science.gov (United States)

    Matthews, Adrian J; Singhruck, Patama; Heywood, Karen J

    2007-12-14

    Using the new Argo array of profiling floats that gives unprecedented space-time coverage of the upper 2000 meters of the global ocean, we present definitive evidence of a deep tropical ocean component of the Madden-Julian Oscillation (MJO). The surface wind stress anomalies associated with the MJO force eastward-propagating oceanic equatorial Kelvin waves that extend downward to 1500 meters. The amplitude of the deep ocean anomalies is up to six times the amplitude of the observed annual cycle. This deep ocean sink of energy input from the wind is potentially important for understanding phenomena such as El Niño-Southern Oscillation and for interpreting deep ocean measurements made from ships.

  19. La política nuclear espanyola: el caos del reactor nuclear Argos

    OpenAIRE

    Barca i Salom, Francesc Xavier

    2000-01-01

    L’11 de juny de 1962 s’inaugurava a l’Escola Tècnica Superior d’Enginyeria Industrial de Barcelona un reactor nuclear experimental, que era batejat amb el nom mític d’Argos. Tota la premsa barcelonina se’n feu ressò i el presentava com el primer reactor construït íntegrament a Espanya per la Junta d’Energia Nuclear. La idea de dotar l’Escola d’un reactor nuclear havia nascut, però, set anys abans, precisament en el mateix moment de la creació de la Càtedra Ferran Tallada d’enginyeria...

  20. Estimation of eddy heat transport in the global ocean from Argo data

    Institute of Scientific and Technical Information of China (English)

    ZHANG Zhiwei; ZHONG Yisen; TIAN Jiwei; YANG Qingxuan; ZHAO Wei

    2014-01-01

    The Argo data are used to calculate eddy (turbulence) heat transport (EHT) in the global ocean and analyze its horizontal distribution and vertical structure. We calculate the EHT by averaging all the v′, T′ profiles within each 2◦× 2◦ bin. The velocity and temperature anomalies are obtained by removing their clima-tological values from the Argo“instantaneous”values respectively. Through the Student’s t-test and an error evaluation, we obtained a total of 87% Argo bins with significant depth-integrated EHTs (D-EHTs). The results reveal a positive-and-negative alternating D-EHT pattern along the western boundary currents (WBC) and Antarctic Circumpolar Current (ACC). The zonally-integrated D-EHT (ZI-EHT) of the global o-cean reaches 0.12 PW in the northern WBC band and-0.38 PW in the ACC band respectively. The strong ZI-EHT across the ACC in the global ocean is mainly caused by the southern Indian Ocean. The ZI-EHT in the above two bands accounts for a large portion of the total oceanic heat transport, which may play an important role in regulating the climate. The analysis of vertical structures of the EHT along the 35◦N and 45◦S section reveals that the oscillating EHT pattern can reach deep in the northern WBC regions and the Agulhas Return Current (ARC) region. It also shows that the strong EHT could reach 600 m in the WBC re-gions and 1 000 m in the ARC region, with the maximum mainly located between 100 and 400 m depth. The results would provide useful information for improving the parameterization scheme in models.

  1. Impacts of XBT, TAO, Altimetry and ARGO Observations on the Tropical Pacific Ocean Data Assimilation

    Institute of Scientific and Technical Information of China (English)

    YAN Changxiang; ZHU Jiang; ZHOU Guangqing

    2007-01-01

    This study aims at assessing the relative impacts of four major components of the tropical Pacific Ocean observing system on assimilation of temperature and salinity fields. Observations were collected over a period between January 2001 through June 2003 including temperature data from the expendable bathythermographs (XBT), thermistor data from the Tropical Ocean Global Atmosphere Tropical Atmosphere-Ocean (TOGA-TAO) mooring array, sea level anomalies from the Topex/Poseidon and Jason-1 altimetry (T/P-J),and temperature and salinity profiles from the Array for Real-time Geostrophic Oceanography (ARGO) floats.An efficient three-dimensional variational analysis-based method was introduced to assimilate the above data into the tropical-Pacific circulation model. To evaluate the impact of the individual component of the observing system, four observation system experiments were carried out. The experiment that assimilated all four components of the observing system was taken as the reference. The other three experiments were implemented by withholding one of the four components. Results show that the spatial distribution of the data influences its relative contribution. XBT observations produce the most distinguished effects on temperature analyses in the off-equatorial region due to the large amount of measurements and high quality.Similarly, the impact of TAO is dominant in the equatorial region due to the focus of the spatial distribution.The Topex/Poseidon-Jason-1 can be highly complementary where the XBT and TAO observations are sparse.The contribution of XBT or TAO on the assimilated salinity is made by the model dynamics because no salinity observations from them are assimilated. Therefore, T/P-J, as a main source for providing salinity data, has been shown to have greater impacts than either XBT or TAO on the salinity analysis. Although ARGO includes the subsurface observations, the relatively smaller number of observation makes it have the smallest

  2. Merging altimeter data with Argo profiles to improve observation of tropical Pacific thermocline circulation and ENSO

    Science.gov (United States)

    Zhang, D.; Lee, T.; Wang, F.; McPhaden, M. J.; Kessler, W. S.

    2016-12-01

    Meridional thermocline currents play an important role in the recharge and discharge of tropical Pacific warm water during the development and transition of ENSO cycles. Previous analyses have shown large variations of the equatorward meridional thermocline convergence/divergence on ENSO and decadal time scales in the interior ocean. The total convergence/divergence is however unknown due to the lack of long term observation in the western boundary currents. Numerical modelling studies suggested a tendency of compensation between the interior and western boundary currents, but the exact compensation is model dependent. While Argo floats provide reasonable data coverage in the interior ocean, few floats are in the western boundary currents. Recent multi-mission satellite altimeter data and advanced processing techniques have resulted in higher resolution sea surface height anomaly (SSHA) products with better accuracy closer to the coasts. This study utilizes the statistical relationship between Argo dynamic height profiles and altimeter SSHA to calculate geostrophic thermocline currents in both the interior ocean and the western boundary of the tropical Pacific. The derived thermocline currents in the western boundary are validated by a 3.5-year moored Acoustic Doppler Current Profiler (ADCP) measurement in the Mindanao Current and by a series of glider surveys (Davis et al. 2012) in the Solomon Sea. The meridional transport timeseries of the interior and western boundary currents in the thermocline show different lead-lag relationships to the Nino 3.4 index. Results will be discussed in the context of recent 2014-2015 El Nino development and the potential contribution to the Tropical Pacific Observing System (TPOS).

  3. Musielak-Orlicz-Hardy Spaces Associated with Operators Satisfying Reinforced Off-Diagonal Estimates

    Directory of Open Access Journals (Sweden)

    Bui The Anh

    2013-02-01

    Full Text Available Let X be a metric space with doubling measure and L a one-to-one operator of type ω having a bounded H∞ -functional calculus in L2(X satisfying the reinforced (pL; qL off-diagonal estimates on balls, where pL ∊ [1; 2 and qL ∊ (2;∞]. Let φ : X × [0;∞ → [0;∞ be a function such that φ (x;· is an Orlicz function, φ(·;t ∊ A∞(X (the class of uniformly Muckenhoupt weights, its uniformly critical upper type index l(φ ∊ (0;1] and φ(·; t satisfies the uniformly reverse Hölder inequality of order (qL/l(φ′, where (qL/l(φ′ denotes the conjugate exponent of qL/l(φ. In this paper, the authors introduce a Musielak-Orlicz-Hardy space Hφ;L(X, via the Lusin-area function associated with L, and establish its molecular characterization. In particular, when L is nonnegative self-adjoint and satisfies the Davies-Gaffney estimates, the atomic characterization of Hφ,L(X is also obtained. Furthermore, a sufficient condition for the equivalence between Hφ,L(ℝn and the classical Musielak-Orlicz-Hardy space Hv(ℝn is given. Moreover, for the Musielak-Orlicz-Hardy space Hφ,L(ℝn associated with the second order elliptic operator in divergence form on ℝn or the Schrödinger operator L := −Δ + V with 0 ≤ V ∊ L1loc(ℝn, the authors further obtain its several equivalent characterizations in terms of various non-tangential and radial maximal functions; finally, the authors show that the Riesz transform ∇L−1/2 is bounded from Hφ,L(ℝn to the Musielak-Orlicz space Lφ(ℝn when i(φ ∊ (0; 1], from Hφ,L(ℝn to Hφ(ℝn when i(φ ∊ (; 1], and from Hφ,L(ℝn to the weak Musielak-Orlicz-Hardy space WHφ(ℝn when i(φ=is attainable and φ(·; t ∊ A1(X, where i(φ denotes the uniformly critical lower type index of φ

  4. Review: Melissa Hardy & Alan Bryman (Eds. (2004. Handbook of Data Analysis

    Directory of Open Access Journals (Sweden)

    Iain Lang

    2006-03-01

    Full Text Available Editors HARDY and BRYMAN present qualitative and quantitative analysis methods in the same book. The individual chapters tend to deal with one or the other approach, though, and there may have been some opportunities missed in terms of discussing both together. The chapters are of high quality and present the current state of knowledge in a wide range of methods. Researchers and students will find the book useful and informative, but this is likely to be a book for libraries rather than individuals to purchase. URN: urn:nbn:de:0114-fqs0602200

  5. [Hardy personality and psychological capital: the positive personal variables and the processes of exhaustion and vigor].

    Science.gov (United States)

    Moreno-Jiménez, Bernardo; Garrosa, Eva; Corso, Sandra; Boada, Mar; Rodríguez-Carvajal, Raquel

    2012-02-01

    The research examined the effects of personal variables, psychological capital and Hardy Personality (HP), using exhaustion and vigor as criterion variables, reviewing two studies, one of 427 nurses (Spain) and another of 253 teachers (Perú). The results showed significant direct and moderating effects of personal variables on exhaustion and vigor, with a greater effect on vigor. The commitment variable (HP) is the only one that had significant effects on both samples. The discussion emphasizes the importance of positive personal variables to explain exhaustion and vigor, particularly the latter.

  6. Argos Panoptes

    OpenAIRE

    2013-01-01

    Resumen: este texto se desarrolla en un escenario prospectivo de un mundo posible, enmarcado en la era tecno global y situado algunos años en el futuro. La historia está inspirada en los fenómenos y patrones que se han ido desarrollando desde algunos años atrás hasta nuestros días en donde la seguridad y el control ciudadano toman fuerza gracias al auge del sistema global de identificación y la metamorfosis del ciudadano en “sospechoso”. Todos estos fenómenos confluyen en una ciudad en desarr...

  7. « The disease of feeling » : Thomas Hardy et l’évolution excessive

    OpenAIRE

    Estanove, Laurence

    2013-01-01

    L’influence du darwinisme et des théories de l’évolution sur l’écriture de Hardy n’est plus à démontrer. C’est pourtant dans son exploration du sort de l’homme dans un monde alors privé de Dieu que Hardy va se distinguer du darwinisme, non pas en s’opposant aux théories de l’évolution, mais en les poussant à bout. Chez Hardy comme chez nombre de ses contemporains, c’est l’accès à la conscience qui distingue, dans le cadre du processus d’évolution des espèces, l’homme des autres êtres vivants....

  8. Liderazgo, la competencia esencial que transformó una empresa colombiana en un gigante internacional : el caso de Cementos Argos

    Directory of Open Access Journals (Sweden)

    Héctor Ochoa Díaz, Ph.D.

    2011-09-01

    Full Text Available Cementos Argos ha sido catalogado como uno de los gigantes de la industria cementera colombiana por su gran capacidad de consolidación en el mercado nacional y sus estrategias de internacionalización poco convencionales. Esta investigación documenta la experiencia internacional de Argos bajo la perspectiva de las teorías de internacionalización de mayor aceptación en la literatura internacional, haciendo uso del enfoque metodológico de los estudios de caso. Como resultado se encontró que las estrategias de fidelización, aunadas al rediseño organizacional resultado del liderazgo de la alta gerencia, han sido herramientas vitales para asegurar el crecimiento de la compañía en los mercados local y externo.

  9. TeV gamma-ray survey of the northern sky using the ARGO-YBJ experiment

    CERN Document Server

    Cao, Z

    2011-01-01

    The ARGO-YBJ experiment is an extensive air shower array with full coverage RPC detectors located at Yangbajing (4300 m asl, Tibet, China). It is operated with high duty cycle (>86%) and a large field of view ($\\sim$ 2sr). It continuously monitors the entire overhead sky at $\\gamma$-ray energies above 0.1 TeV. In the talk, we will present the result of the northern sky survey (between declinations of -10$^{\\circ}$ and 70$^{\\circ}$) from an analysis of ~4 years of the ARGO-YBJ data (between July 2006 and February 2011). There are four known TeV sources observed with significance greater than 5 S.D.. The significance from Crab Nebula is more than 16 S.D.. 90% confidence level upper limits to the flux from all directions in the sky are also presented, which vary from 0.09 to 0.53 Crab unit for Crab-like point sources.

  10. Chlorophyll bloom in response to tropical cyclone Hudhud in the Bay of Bengal: Bio-Argo subsurface observations

    Science.gov (United States)

    Chacko, Neethu

    2017-06-01

    Though previous studies have documented substantial increases in chlorophyll concentrations as a result of cyclones, most of them were based on satellite observations dealing with surface chlorophyll blooms. This study documents the subsurface biological response and the subsequent chlorophyll bloom observed in response to the tropical cyclone Hudhud as evident from a Bio-Argo float located at the central Bay of Bengal. Results show high chlorophyll concentrations of up to 4.5 mg m-3 which is anomalous in the normally warm, stratified, and oligotrophic Bay of Bengal. The chlorophyll bloom is attributed to the combined effect of subsurface chlorophyll entrainment and nutrient injection. The presence of a pre-existing cyclonic eddy and the decreased translation speed of the cyclone over this region could have played a role in inducing the biological response. This is the first ever report to document the evolution of a subsurface chlorophyll bloom in response to cyclone forcing using Bio-Argo observations.

  11. Meso-scale circulation at the intermediate-depth east of Mindanao observed by Argo profiling floats

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    The meso-scale circulation at the intermediate depth east of Mindanao is studied using Argo profiling floats observations. The trajectories and the parking-depth velocities of Argo floats show that the intermediate-depth circulation east of Mindanao contains significant meso-scale features that are highly variable both in space and in time. Both cyclonic and anticyclonic eddies at the intermediate depth (1000–2000 m) are indicated by the trajectories east of Mindanao. The mean tangential velocities of these eddies are about 10 cm/s at 2000 m and over 20 cm/s at 1000 m, which indicates that the geostrophic calculation may contain large errors due to the vigorous eddy activity at the reference levels. The analyses also suggest that these eddies might play an important role in mass and vorticity balances of the intermediate-depth circulation east of Mindanao.

  12. LIDERAZGO, LA COMPETENCIA ESENCIAL QUE TRANSFORMÓ UNA EMPRESA COLOMBIANA EN UN GIGANTE INTERNACIONAL: EL CASO DE CEMENTOS ARGOS

    Directory of Open Access Journals (Sweden)

    HÉCTOR OCHOA DÍAZ

    2011-01-01

    Full Text Available Cementos Argos ha sido catalogado como uno de los gigantes de la industria cementera colombiana por su gran capacidad de consolidación en el mercado nacional y sus estrategias de internacionalización poco convencionales. Esta investigación documenta la experiencia internacional de Argos bajo la perspectiva de las teorías de internacionalización de mayor aceptación en laliteratura internacional, haciendo uso del enfoque metodológico de los estudios de caso. Como resultado se encontró que las estrategias de fidelización,aunadas al rediseño organizacional resultado del liderazgo de la alta gerencia, han sido herramientas vitales para asegurar el crecimiento de la compañía en los mercados local y externo.

  13. The Argos-CLS Kalman Filter: Error Structures and State-Space Modelling Relative to Fastloc GPS Data.

    Directory of Open Access Journals (Sweden)

    Andrew D Lowther

    Full Text Available Understanding how an animal utilises its surroundings requires its movements through space to be described accurately. Satellite telemetry is the only means of acquiring movement data for many species however data are prone to varying amounts of spatial error; the recent application of state-space models (SSMs to the location estimation problem have provided a means to incorporate spatial errors when characterising animal movements. The predominant platform for collecting satellite telemetry data on free-ranging animals, Service Argos, recently provided an alternative Doppler location estimation algorithm that is purported to be more accurate and generate a greater number of locations that its predecessor. We provide a comprehensive assessment of this new estimation process performance on data from free-ranging animals relative to concurrently collected Fastloc GPS data. Additionally, we test the efficacy of three readily-available SSM in predicting the movement of two focal animals. Raw Argos location estimates generated by the new algorithm were greatly improved compared to the old system. Approximately twice as many Argos locations were derived compared to GPS on the devices used. Root Mean Square Errors (RMSE for each optimal SSM were less than 4.25 km with some producing RMSE of less than 2.50 km. Differences in the biological plausibility of the tracks between the two focal animals used to investigate the utility of SSM highlights the importance of considering animal behaviour in movement studies. The ability to reprocess Argos data collected since 2008 with the new algorithm should permit questions of animal movement to be revisited at a finer resolution.

  14. The Argos-CLS Kalman Filter: Error Structures and State-Space Modelling Relative to Fastloc GPS Data.

    Science.gov (United States)

    Lowther, Andrew D; Lydersen, Christian; Fedak, Mike A; Lovell, Phil; Kovacs, Kit M

    2015-01-01

    Understanding how an animal utilises its surroundings requires its movements through space to be described accurately. Satellite telemetry is the only means of acquiring movement data for many species however data are prone to varying amounts of spatial error; the recent application of state-space models (SSMs) to the location estimation problem have provided a means to incorporate spatial errors when characterising animal movements. The predominant platform for collecting satellite telemetry data on free-ranging animals, Service Argos, recently provided an alternative Doppler location estimation algorithm that is purported to be more accurate and generate a greater number of locations that its predecessor. We provide a comprehensive assessment of this new estimation process performance on data from free-ranging animals relative to concurrently collected Fastloc GPS data. Additionally, we test the efficacy of three readily-available SSM in predicting the movement of two focal animals. Raw Argos location estimates generated by the new algorithm were greatly improved compared to the old system. Approximately twice as many Argos locations were derived compared to GPS on the devices used. Root Mean Square Errors (RMSE) for each optimal SSM were less than 4.25 km with some producing RMSE of less than 2.50 km. Differences in the biological plausibility of the tracks between the two focal animals used to investigate the utility of SSM highlights the importance of considering animal behaviour in movement studies. The ability to reprocess Argos data collected since 2008 with the new algorithm should permit questions of animal movement to be revisited at a finer resolution.

  15. Hydrodynamic features of the South Aegean Sea as derived from Argo T/ S and dissolved oxygen profiles in the area

    Science.gov (United States)

    Kassis, Dimitris; Krasakopoulou, Evangelia; Korres, Gerasimos; Petihakis, George; Triantafyllou, George S.

    2016-11-01

    In this work, the hydrodynamic picture of the South Aegean Sea is examined through an analysis of recent measurements in its sub-basins, the Myrtoan and Cretan Sea. Both sub-basins play an important role in the water circulation, exchange, and formation processes that affect the dynamics of the whole Eastern Mediterranean. For the first time, Bio-Argo floats were deployed in the area under the Greek Argo Research Infrastructure coordination. The acquired profiles cover an almost 2-year period (November 2013-July 2015) and are compared with previous Argo profiles and the re-processed time-series data recorded from the E1-M3A POSEIDON observatory operating in the area since 2007. The spatio-temporal distribution of the physical and chemical properties in each sub-basin is examined. Dense water formation events are revealed in the northern part (Myrtoan), while the wider area can be characterized as pre-conditioned. In the Cretan basin, a strong inter-annual variability of the salinity field at intermediate and deep layers is observed that is associated with water exchange from its open boundaries. Furthermore, comparison of the dissolved oxygen (DO) distribution with physical water properties within both the mixed layer, and at greater depths, indicated that relatively high but still under-saturated DO values are more likely to be associated with convection events. Finally, an updated picture of the physical properties and the DO distribution is presented based on the last 5 years of measurements and the recent introduction of Bio-Argo floats with DO sensors in the area.

  16. Evaluation of Mid-Depth Currents of NCEP Reanalysis Data in the Tropical Pacific Using ARGO Float Position Information

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The global project of the Array for Real-time Geostrophic Oceanography (ARGO) provides a unique opportunity to observe the absolute velocity in mid-depths of the world oceans. A total of 1597 velocity vectors at 1000 (2000) db in the tropical Pacific derived from the ARGO float position information during the period November 2001 to October 2004 are used to evaluate the intermediate currents of the National Centers for Environmental Prediction reanalysis. To derive reliable velocity information from ARGO float trajectory points, a rigorous quality control scheme is applied, and by virtue of a correction method for reducing the drift error on the surface in obtaining the velocity vectors, their relative errors are less than 25%. Based on the comparisons from the quantitative velocity vectors and from the space-time average currents, some substantial discrepancies are revealed. The first is that the velocities of the reanalysis at mid-depths except near the equator are underestimated relative to the observed velocities by the floats.The average speed difference between NCEP and ARGO values ranges from about -2.3 cms-1 to -1.8cms-1. The second is that the velocity difference between the ocean model and the observations at 2000dB seems smaller than that at 1000 dB. The third is that the zonal flow in the reanalysis is too dominant so that some eddies could not be simulated, such as the cyclonic eddy to the east of 160°E between 20°N and 30°N at 2000 dB. In addition, it is noticeable that many floats parking at 1000 dB cannot acquire credible mid-depth velocities due to the time information of their end of ascent (start of descent) on the surface in the trajectory files. Thus, relying on default times of parking, descent and ascent in the metadata files gravely confines their application to measuring mid-depth currents.

  17. Practical experience with test-driven development during commissioning of the multi-star AO system ARGOS

    Science.gov (United States)

    Kulas, M.; Borelli, Jose Luis; Gässler, Wolfgang; Peter, Diethard; Rabien, Sebastian; Orban de Xivry, Gilles; Busoni, Lorenzo; Bonaglia, Marco; Mazzoni, Tommaso; Rahmer, Gustavo

    2014-07-01

    Commissioning time for an instrument at an observatory is precious, especially the night time. Whenever astronomers come up with a software feature request or point out a software defect, the software engineers have the task to find a solution and implement it as fast as possible. In this project phase, the software engineers work under time pressure and stress to deliver a functional instrument control software (ICS). The shortness of development time during commissioning is a constraint for software engineering teams and applies to the ARGOS project as well. The goal of the ARGOS (Advanced Rayleigh guided Ground layer adaptive Optics System) project is the upgrade of the Large Binocular Telescope (LBT) with an adaptive optics (AO) system consisting of six Rayleigh laser guide stars and wavefront sensors. For developing the ICS, we used the technique Test- Driven Development (TDD) whose main rule demands that the programmer writes test code before production code. Thereby, TDD can yield a software system, that grows without defects and eases maintenance. Having applied TDD in a calm and relaxed environment like office and laboratory, the ARGOS team has profited from the benefits of TDD. Before the commissioning, we were worried that the time pressure in that tough project phase would force us to drop TDD because we would spend more time writing test code than it would be worth. Despite this concern at the beginning, we could keep TDD most of the time also in this project phase This report describes the practical application and performance of TDD including its benefits, limitations and problems during the ARGOS commissioning. Furthermore, it covers our experience with pair programming and continuous integration at the telescope.

  18. Principle of maximum Fisher information from Hardy's axioms applied to statistical systems.

    Science.gov (United States)

    Frieden, B Roy; Gatenby, Robert A

    2013-10-01

    Consider a finite-sized, multidimensional system in parameter state a. The system is either at statistical equilibrium or general nonequilibrium, and may obey either classical or quantum physics. L. Hardy's mathematical axioms provide a basis for the physics obeyed by any such system. One axiom is that the number N of distinguishable states a in the system obeys N=max. This assumes that N is known as deterministic prior knowledge. However, most observed systems suffer statistical fluctuations, for which N is therefore only known approximately. Then what happens if the scope of the axiom N=max is extended to include such observed systems? It is found that the state a of the system must obey a principle of maximum Fisher information, I=I(max). This is important because many physical laws have been derived, assuming as a working hypothesis that I=I(max). These derivations include uses of the principle of extreme physical information (EPI). Examples of such derivations were of the De Broglie wave hypothesis, quantum wave equations, Maxwell's equations, new laws of biology (e.g., of Coulomb force-directed cell development and of in situ cancer growth), and new laws of economic fluctuation and investment. That the principle I=I(max) itself derives from suitably extended Hardy axioms thereby eliminates its need to be assumed in these derivations. Thus, uses of I=I(max) and EPI express physics at its most fundamental level, its axiomatic basis in math.

  19. ANALISIS TINGKAT OPTIMASI ALGORITMA GENETIKA DALAM HUKUM KETETAPAN HARDY-WEINBERG PADA BIN PACKING PROBLEM

    Directory of Open Access Journals (Sweden)

    Terry Noviar Panggabean

    2016-08-01

    Full Text Available Abstrak—Karna representasi abstrak dari beberapa sistem pengambilan keputusan yang nyata dalam kehidupan sehari hari membuat masalah optimasi kombinatorial umumnya sangat sulit untuk dipecahkan. Bin packing problem ialah solusi terbaik dalam mengatasi masalah optimasi kombinatorial, yang digunakan untuk mencari sebuah objek secara optimal dari sekelompok himpunan objek yang berhingga. Serangkaian pendekatan hybrid telah dikembangkan dalam hal ini untuk memecahkan masalah Bin Packing. Metaheuristik adalah salah satu pendekatan tingkat tinggi dalam memandu dalam memodifikasi beberapa metode heuristik lainnya untuk mencari tingkat optimasi yang lebih baik. Genetic Algorithm atau Algoritma Genetika juga merupakan metode metaheuristik yang digunakan untuk menyelesaikan berbagai masalah dalam hal peningkatan optimasi. Dalam algoritma genetika terdapat bermacam-macam varian. Dalam penelitian dipaparkan mengenai taksonomi dari algoritma genetika parallel (Parallel Genetic Algorithm yang memiliki kemampuan yang lebih baik dari algoritma genetika konvensional dalam hal kinerja dan skalabilitasnya. Tetapi algoritma genetika paralel ini hanya cocok untuk permasalahan jaringan komputer heterogen dan sistem terdistribusi. Berdasarkan penelitian yang sudah pernah dilakukan sebelumnya dan dari uraian diatas maka penulis tertarik untuk melakukan penelitian bagaimana menerapkan hukum ketetapan Hardy-Weinberg dari bidang biologi kedalam algoritma genetika melakukan analisis tingkat optimasi terhadap Bin Packing Problem..   Keywords— Genetic Algortihm, Hardy-Weinberg, Bin Packing Problem.

  20. Hardy Bacterium Isolated From Two Geographically Distinct Spacecraft Assembly Cleanroom Facilities

    Science.gov (United States)

    Vaisham-payan, Parag A.; Venkateswaran, Kasthuri J.; Schwendner, Petra; Moissl-Eichinger, Christine

    2012-01-01

    Earlier studies have confirmed that a tenacious hardy bacterial population manages to persist and survive throughout a spacecraft assembly process. The widespread detection of these organisms underscores the challenges in eliminating them completely. Only comprehensive and repetitive microbial diversity studies of geographically distinct cleanroom facilities will bolster the understanding of planetary protection relevant microbes. Extensive characterizations of the physiological traits demonstrated by cleanroom microbes will aid NASA in gauging the forward contamination risk that hardy bacteria (such as Tersicoccus phoenicis) pose to spacecraft. This study reports on the isolation and identification of two gram-positive, non-motile, non-spore-forming bacterial strains from the spacecraft assembly facilities at Kennedy Space Center, Florida, USA and Centre Spatial Guyanais, Kourou, French Guiana. DNA-DNA relatedness values between the novel strains indicates that these novel strains were indeed members of a same species. Phylogenetic evidence derived from a 16S ribosomal DNA analysis indicated that both the novel strains are less closely related to all other Arthrobacter species.

  1. Validation of a Newly Developed Instrument Establishing Links Between Motivation and Academic Hardiness

    Directory of Open Access Journals (Sweden)

    Spiridon Kamtsios

    2016-02-01

    Full Text Available The purpose of the study was to establish the reliability, the structural and the convergent validity of the “Dimensions of Academic Hardiness Questionnaire” for late elementary school children. A sample of children (N = 1264 aged 10-12 years completed the questionnaire and the “Athens Coping Scale”. Multiple fit indices provided support that the 9-factor model had a good fit to the data. Reliability coefficients ranged from .68 to .83. The study provided also preliminary evidence of convergent validity of the “Dimensions of Academic Hardiness” scores with one theoretically related measure, the “Athens Coping Scale”. The results enrich the notion of Academic Hardiness in late elementary school children as the role of awareness and the role of children’s previous experiences has been distinguished. The relation between the “Dimensions of Academic Hardiness” and achievement goal orientations in children learning is also noted. These findings are discussed in the context of the relevant literature.

  2. Atomic Decomposition and Boundedness Criterion of Operators on Multi-parameter Hardy Spaces of Homogeneous Type

    Institute of Scientific and Technical Information of China (English)

    Guo Zhen LU; Ya Yuan XIAO

    2012-01-01

    The main purpose of this paper is to derive a new (p,q)-atomic decomposition on the multi-parameter Hardy space Hp(X1 × X2) for 0 < p0 < p ≤ 1 for some po and all 1 < q < ∞,where X1 × X2 is the product of two spaces of homogeneous type in the sense of Coifman and Weiss.This decomposition converges in both Lq(x1× X2) (for 1 < q < ∞) and Hardy space Hp(X1 × X2) (for 0 < p ≤ 1).As an application,we prove that an operator T,which is bounded on Lq(X1 × X2) for some 1 < q < ∞,is bounded from Hp(X1 × X2) to Lp(X1 × X2) if and only ifT is bounded uniformly on all (p,q)-product atoms in Lp(X1 × X2).The similar boundedness criterion from Hp(X1 × X2) to Hp(X1 × X2) is also obtained.

  3. Colloidal Stability in Asymmetric Electrolytes: Modifications of the Schulze-Hardy Rule.

    Science.gov (United States)

    Trefalt, Gregor; Szilagyi, Istvan; Téllez, Gabriel; Borkovec, Michal

    2017-02-21

    The Schulze-Hardy rule suggests a strong dependence of the critical coagulation concentration (CCC) on the ionic valence. This rule is addressed theoretically and confronted with recent experimental results. The commonly presented derivation of this rule assumes symmetric electrolytes and highly charged particles. Both assumptions are incorrect. Symmetric electrolytes containing multivalent ions are hardly soluble, and experiments are normally carried out with the well-soluble salts of asymmetric electrolytes containing monovalent and multivalent ions. In this situation, however, the behavior is completely different whether the multivalent ions represent the counterions or co-ions. When these ions represent the counterions, meaning that the multivalent ions have the opposite sign than the charge of the particle, they adsorb strongly to the particles. Thereby, they progressively reduce the magnitude of the surface charge with increasing valence. In fact, this dependence of the charge density on the counterion valence is mainly responsible for the decrease of the CCC with the valence. In the co-ion case, where the multivalent ions have the same sign as the charge of the particle, the multivalent ions are repelled from the particles, and the surfaces remain highly charged. In this case, the inverse Schulze-Hardy rule normally applies, whereby the CCC varies inversely proportional to the co-ion valence.

  4. On horizontal Hardy, Rellich, Caffarelli-Kohn-Nirenberg and p-sub-Laplacian inequalities on stratified groups

    Science.gov (United States)

    Ruzhansky, Michael; Suragan, Durvudkhan

    2017-02-01

    In this paper, we present a version of horizontal weighted Hardy-Rellich type and Caffarelli-Kohn-Nirenberg type inequalities on stratified groups and study some of their consequences. Our results reflect on many results previously known in special cases. Moreover, a new simple proof of the Badiale-Tarantello conjecture [2] on the best constant of a Hardy type inequality is provided. We also show a family of Poincaré inequalities as well as inequalities involving the weighted and unweighted p-sub-Laplacians.

  5. An Early Cretaceous volcanic arc/marginal basin transition zone, Peninsula hardy, southernmost Chile

    Science.gov (United States)

    Miller, Christopher A.; Barton, Michael; Hanson, Richard E.; Fleming, Thomas H.

    1994-10-01

    The Hardy Formation represents a latest Jurassic-Early Cretaceous volcanic arc that was located along the Pacific margin of southern South America. It was separated from the continent by a marginal basin floored by portions of an ophiolite sequence (the Rocas Verdes ophiolites). The transition between the arc and marginal basin occurs on Peninsula Hardy, southernmost Chile, where there is a lateral facies transition from arc deposits of the Hardy Formation into proximal marginal basin fill of the Yahgan Formation. Interfingering of arc and marginal basin sequences demonstrates that subduction-related arc magmatism was concurrent with marginal basin formation. The lateral facies transition is reflected in the geochemistry of volcanic rocks from the Hardy and Yahgan formations. Basalts, andesites and dacites of the arc sequence follow a calc-alkaline differentiation trend whereas basalts from the marginal basin follow a tholeiitic differentiation trend. Estimates of temperature and oxygen fugacity for crystallization of the arc andesites are similar to values reported for other calc-alkaline andesites. It is suggested that water activity influenced the early or late crystallization of Ti-magnetite and this controlled the style of differentiation of the magmas erupted on Peninsula Hardy. Magmas with high water contents evolved along the calc-alkaline differentiation trend whereas those with low water contents evolved along the tholeiitic differentiation trend. Some rhyolites are differentiated from the calc-alkaline andesites and dacites, but most appear to be the products of crustal anatexis on the basis of trace-element evidence. The arc basalts and some marginal basin basalts show relative enrichment in LILE, relative depletion in HFSE, and enrichment in LREE. Other marginal basin basalts are LREE depleted and show small relative depletions in HFSE. Basalts with both calc-alkaline and tholeiitic affinities can also be recognized in the Rocas Verdes ophiolites

  6. Observation of the TeV gamma-ray source MGRO J1908+06 with ARGO-YBJ

    CERN Document Server

    ,

    2012-01-01

    The extended gamma ray source MGRO J1908+06, discovered by the Milagro air shower detector in 2007, has been observed for \\sim 4 years by the ARGO-YBJ experiment at TeV energies, with a statistical significance of 6.2 standard deviations. The peak of the signal is found at a position consistent with the pulsar PSR J1907+0602. Parametrizing the source shape with a two-dimensional Gauss function we estimate an extension \\sigma = 0.49 \\pm 0.22 degrees, consistent with a previous measurement by the Cherenkov Array H.E.S.S.. The observed energy spectrum is dN/dE = 6.1 \\pm 1.4 \\times 10^-13 (E/4 TeV)^{-2.54 \\pm 0.36} photons cm^-2 s^-1 TeV^-1, in the energy range \\sim 1-20 TeV. The measured gamma ray flux is consistent with the results of the Milagro detector, but is \\sim 2-3 times larger than the flux previously derived by H.E.S.S. at energies of a few TeV. The continuity of the Milagro and ARGO-YBJ observations and the stable excess rate observed by ARGO-YBJ along 4 years of data taking support the identification...

  7. Identification of the TeV gamma-ray source ARGO J2031+4157 with the Cygnus Cocoon

    Energy Technology Data Exchange (ETDEWEB)

    Bartoli, B.; Catalanotti, S.; D' Ettorre Piazzoli, B.; Di Girolamo, T. [Dipartimento di Fisica dell' Università di Napoli " Federico II," Complesso Universitario di Monte Sant' Angelo, via Cinthia, I-80126 Napoli (Italy); Bernardini, P.; D' Amone, A.; De Mitri, I. [Dipartimento Matematica e Fisica " Ennio De Giorgi," Università del Salento, via per Arnesano, I-73100 Lecce (Italy); Bi, X. J.; Cao, Z.; Chen, S. Z. [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing (China); Branchini, P.; Budano, A. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, via della Vasca Navale 84, I-00146 Roma (Italy); Camarri, P. [Dipartimento di Fisica dell' Università di Roma " Tor Vergata," via della Ricerca Scientifica 1, I-00133 Roma (Italy); Cardarelli, R.; Di Sciascio, G. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata, via della Ricerca Scientifica 1, I-00133 Roma (Italy); Chen, T. L.; Danzengluobu [Tibet University, 850000 Lhasa, Xizang (China); Creti, P. [Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, via per Arnesano, I-73100 Lecce (Italy); Cui, S. W. [Hebei Normal University, Shijiazhuang 050016, Hebei (China); Dai, B. Z., E-mail: chensz@ihep.ac.cn [Yunnan University, 2 North Cuihu Road, 650091 Kunming, Yunnan (China); Collaboration: ARGO-YBJ Collaboration; and others

    2014-08-01

    The extended TeV gamma-ray source ARGO J2031+4157 (or MGRO J2031+41) is positionally consistent with the Cygnus Cocoon discovered by Fermi-LAT at GeV energies in the Cygnus superbubble. Reanalyzing the ARGO-YBJ data collected from 2007 November to 2013 January, the angular extension and energy spectrum of ARGO J2031+4157 are evaluated. After subtracting the contribution of the overlapping TeV sources, the ARGO-YBJ excess map is fitted with a two-dimensional Gaussian function in a square region of 10° × 10°, finding a source extension σ{sub ext}= 1.°8 ± 0.°5. The observed differential energy spectrum is dN/dE = (2.5 ± 0.4) × 10{sup –11}(E/1 TeV){sup –2.6±0.3} photons cm{sup –2} s{sup –1} TeV{sup –1}, in the energy range 0.2-10 TeV. The angular extension is consistent with that of the Cygnus Cocoon as measured by Fermi-LAT and the spectrum also shows a good connection with the one measured in the 1-100 GeV energy range. These features suggest to identify ARGO J2031+4157 as the counterpart of the Cygnus Cocoon at TeV energies. The Cygnus Cocoon, located in the star-forming region of Cygnus X, is interpreted as a cocoon of freshly accelerated cosmic rays related to the Cygnus superbubble. The spectral similarity with supernova remnants (SNRs) indicates that the particle acceleration inside a superbubble is similar to that in an SNR. The spectral measurements from 1 GeV to 10 TeV allows for the first time to determine the possible spectrum slope of the underlying particle distribution. A hadronic model is adopted to explain the spectral energy distribution.

  8. On the nature of the Madagascar dipoles: An analysis from Argo profiling floats and altimetry measurements

    Science.gov (United States)

    Aguiar-González, Borja; Ponsoni, Leandro; Ridderinkhof, Herman; de Ruijter, Will P. M.; Maas, Leo R. M.

    2016-04-01

    The South East Madagascar Current (SEMC) flows poleward along the eastern coast of Madagascar as a western boundary current which further south provides some of the source waters of the Agulhas Current, either directly or in the form of eddies. We investigate the region of dipole formation south of Madagascar combining vertical T/S profiles from Argo floats, altimetry measurements and an existing eddy detection algorithm. Results from our analysis show that the dipole consists of an anticyclonic intrathermocline eddy (ITE) formed on its southern flank and a cyclonic ITE formed on its northern flank. Both lobes of the dipole exhibit similar T/S properties throughout the water column, although vertically shifted within the thermocline depending on its nature: upward in a cyclonic ITE and downward in an anticyclonic ITE. A subsurface salinity maximum of about 35.5 psu characterizes the upper layers with Subtropical Surface Water (STSW). At intermediate levels, a well defined path of South Indian Central Water (SICW) extends throughout the water column up to reach a minimum in salinity of 34.5 psu, corresponding to Antarctic Intermediate Water (AAIW). Below, at deep layers, the North Atlantic Deep Water (NADW) is found. The intrathermocline nature of the Madagascar dipoles has not been previously reported and represents an important feature to be considered when assessing the heat and salt fluxes driven by eddy movement and contributing to the Agulhas Current. Unlike surface eddies, intrathermocline eddies strongly influence the intermediate/deeper layers in the oceans and, hence, may have a larger contribution in the spreading rates and pathways of water masses. Because the intrathermocline nature of eddies is invisible to altimetry measurements, these results stress the importance of combining altimetry with historical records of Argo profiles which uncover eddy dynamics below the sea surface. Lastly, we further investigate from altimetry the area of dipole formation

  9. Comment on Nesselroade, Gerstorf, Hardy, & Ram, "Idiographic Filters for Psychological Constructs": Another Kind of Discrepancy to Think about

    Science.gov (United States)

    Loehlin, John C.

    2007-01-01

    In their stimulating article, Nesselroade et al. (Nesselroade, Gerstorf, Hardy, & Ram, this issue) propose "filtering out" idiosyncracy at the measurement level in order to maintain constancy at the construct level. They illustrate their idea using data from a study by Lebo and Nesselroade (1978), in which self-descriptions of individual women…

  10. Moving Frost Hardy Genes From Wild to Cultivated Potatoes. Use of Precise Screening Tools to Make Real Progress

    Science.gov (United States)

    The common cultivated species Solanum tubrosum is frost sensitive and is killed at temperatures below -2.5°C. It has been estimated that by increasing frost hardiness by 1–2 C one can expect an increase in potato yield by 26 to 40% in the Altiplano (Peru and Bolivia) covering 63,000 ha. of potatoes....

  11. Cold hardiness of interspecific hybrids between Pinus strobus and P. wallichiana measured by post-freezing needle electrolyte leakage.

    Science.gov (United States)

    Lu, Pengxin; Colombo, Stephen J; Sinclair, Robert W

    2007-02-01

    Interspecific hybrids between eastern white pine (Pinus strobus L.) and Himalayan blue pine (P. wallichiana A. B. Jacks.) were developed in Ontario, Canada, to introduce blister rust (Cronartium ribicola Fisch.) resistance genes to P. strobus. There is concern that introducing blister rust resistance has resulted in reduced cold hardiness of the progeny compared with non-hybridized eastern white pine. To test the efficacy of backcrossing with P. strobus to improve cold hardiness, 1-year-old seedlings from hybrid crosses differing in P. strobus genome composition were artificially freeze-tested. In Experiment 1, unhardened seedlings were allowed to acclimate to progressively lower temperatures in a growth room, whereas in Experiment 2, seedlings were hardened outdoors under natural weather conditions in Sault Ste Marie, Ontario. Needle cold injury was determined by calculating relative electrical conductivity based on post-freezing electrolyte leakage. Results indicated that needle fascicles from unhardened seedlings of all genotypes in the greenhouse tolerated -5 degrees C for 3 hours with little or no injury. Cold hardiness increased in parallel with declining growth room minimum temperature over the 7-week period of hardening. Cold hardiness was improved for hybrid crosses with increased Pinus strobus genome composition in Experiment 2, but the results were less conclusive in Experiment 1.

  12. The relationship of hardiness and social support to student appraisal of stress in an initial clinical nursing situation.

    Science.gov (United States)

    Pagana, K D

    1990-06-01

    The stressful nature of the clinical experience of nursing students was examined within the context of Lazarus' theory of cognitive appraisal of stress. The students' evaluation of their initial medical-surgical clinical experience as a threat or a challenge was determined along with the hypothesized mediating variables of hardiness and social support. The sample of 246 students from seven different colleges and universities in Pennsylvania completed a hardiness measure, the Norbeck Social Support Questionnaire (NSSQ), and a Clinical Stress Questionnaire (CSQ). Although the correlations were low, hardiness was found to be positively related to the evaluation of challenge and negatively related to the evaluation of threat. Social support was positively related to the evaluation of challenge only when using a work-related measure of support. The hypothesis that social support would be negatively related to the evaluation of threat was not supported. This research raises important questions related to the theories of hardiness, social support, and cognitive appraisal of stress. Implications for further research in this area are offered.

  13. Taiwanese Students' Science Learning Self-Efficacy and Teacher and Student Science Hardiness: A Multilevel Model Approach

    Science.gov (United States)

    Wang, Ya-Ling; Tsai, Chin-Chung

    2016-01-01

    This study aimed to investigate the factors accounting for science learning self-efficacy (the specific beliefs that people have in their ability to complete tasks in science learning) from both the teacher and the student levels. We thus propose a multilevel model to delineate its relationships with teacher and student science hardiness (i.e.,…

  14. [Determination of histamine content in canned fish products determined by the colorimetry method of Hardy and Smith].

    Science.gov (United States)

    Windyga, B; Grochowska, A; Sciezyńska, H; Górecka, K; Fonberg-Broczek, M

    1992-01-01

    The content of histamine in 79 samples of imported canned fish products (sardines, mackerel) was determined. Histamine was assayed by colorimetric method of Hardy and Smith. In 18% of tested products (sardines) levels of histamine were exceeded 20 mg/100 of product. Usefulness of this method in routine quantitative determination of histamine content in canned fish products was documented.

  15. Essentially normal Hilbert modules and K-homology Ⅲ:Homogenous quotient modules of Hardy modules on the bidisk

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    In this paper, we study the homogenous quotient modules of the Hardy module on the bidisk. The essential normality of the homogenous quotient modules is completely characterized. We also describe the essential spectrum for a general quotient module. The paper also considers K-homology invariant defined in the case of the homogenous quotient modules on the bidisk.

  16. Remarks on Herz-Type Hardy Spaces Dedicated to Professor Kozo Yabuta on the occasion of his 60th birthday

    Institute of Scientific and Technical Information of China (English)

    Akihiko MIYACHI

    2001-01-01

    Basic properties of the Herz-type Hardy spaces H k,αqp, such as the boundedness of singular integral operators and the fractional integration operators, atomic decomposition, dense subspaces, etc.,are established in the full range 0 < q <∞.

  17. A causal model of antecedents with burnout focusing on the intermediate role of hardy personality in Iranian nurses.

    Science.gov (United States)

    Bemana, Foruzan; Bemana, Simin; Farhadi, Payam; Shokrpour, Nasrin

    2014-01-01

    Nowadays burnout is a common issue in all health systems and therapeutic professions. Burnout is caused by job stressors and results in reduction in output, increase in absenteeism and health expenses, behavioral changes, and sometimes drugs abuse. Nonetheless, people who have hardy personalities experience less exhaustion. The present research aimed to present a causal model of antecedents with burnout to emphasize the intermediate role of hardy personality in the nurses working in the public hospitals of Shiraz, Iran. The study data were collected using the Nursing Burnout Scale questionnaire (Int J Nurs Stud. 2008;45(3):418-427). In addition, the structural equation method was used as a model in order to determine the relationship between the variables. The suggested pattern in this research was checked by Leasrel software, version 8.5. The study results showed that antecedents, such as incorrect supervision, responsibility, and workload, have a significant effect on burnout. However, mediated hardy personality had no effect on burnout. The results also showed that the people who had hardy personality could manage the stressful situations well and, consequently, rarely experience burnout. Overall, if the job stressors are existent in the job environment and the individuals cannot eradicate them, they will cause burnout outbreak.

  18. Lusin Area Function and Molecular Characterizations of Musielak-Orlicz Hardy Spaces and Their Applications

    CERN Document Server

    Hou, Shaoxiong; Yang, Sibei

    2012-01-01

    Let $\\varphi: \\mathbb R^n\\times [0,\\infty)\\to[0,\\infty)$ be a function such that $\\varphi(x,\\cdot)$ is an Orlicz function and $\\varphi(\\cdot,t)$ is a Muckenhoupt $A_\\infty(\\mathbb{R}^n)$ weight. In this paper, the authors establish the Lusin area function and the molecular characterizations of the Musielak-Orlicz Hardy space $H_\\varphi(\\mathbb{R}^n)$ introduced by Luong Dang Ky via the grand maximal function. As an application, the authors obtain the $\\varphi$-Carleson measure characterization of the Musielak-Orlicz BMO-type space $\\mathop\\mathrm{BMO}_{\\varphi}(\\mathbb{R}^n)$, which was proved to be the dual space of $H_\\varphi(\\mathbb{R}^n)$ by Luong Dang Ky.

  19. New Real-Variable Characterizations of Musielak-Orlicz Hardy Spaces

    CERN Document Server

    Liang, Yiyu; Yang, Dachun

    2012-01-01

    Let $\\varphi: \\mathbb R^n\\times [0,\\infty)\\to[0,\\infty)$ be such that $\\varphi(x,\\cdot)$ is an Orlicz function and $\\varphi(\\cdot,t)$ is a Muckenhoupt $A_\\infty$ weight. A Schwartz distribution $f$ is called to belong to the Musielak-Orlicz Hardy space, $H^{\\varphi}(\\mathbb R^n)$, if and only if its grand maximal function $f^*$ belongs to the Musielak-Orlicz space $L^\\varphi(\\mathbb R^n)$. Luong Dang Ky established its atomic characterization. In this paper, the authors establish some new real-variable characterizations of $H^{\\varphi}(\\mathbb R^n)$ in terms of the vertical and the non-tangential maximal functions and, under some additional mild restrictions on $\\varphi$, in terms of the various Littlewood-Paley functions, via first establishing a Musielak-Orlicz Fefferman-Stein vector-valued inequality.

  20. Quantitative changes in phenolic content during physiological development of the olive (Olea europaea) cultivar Hardy's Mammoth.

    Science.gov (United States)

    Ryan, Danielle; Prenzler, Paul D; Lavee, Shimon; Antolovich, Michael; Robards, Kevin

    2003-04-23

    This investigation was designed to characterize phenolic metabolism of the olive cultivar, Hardy's Mammoth, by examining its constitutive tissues. The phenolic profiles of pulp, seed, stone, and new and old season leaves were monitored over two fruiting seasons, to investigate possible relationships between tissues and phenol content and to determine the impact of alternate fruit bearing. No major qualitative differences in phenolic composition were found between the various tissues; however, distinct differences between the tissues with respect to quantifiable phenols were established. Relationships between 2-(3,4-dihydroxyphenyl)ethyl (3E,4E)-4-formyl-3-(2-oxoethyl)hex-4-enoate ester, oleuropein, and hydroxytyrosol in pulp and leaf were identified and found to be related to alternate bearing. Concentrations of 5-caffeoylquinic acid in old season leaves differed dramatically between seasons, confirming earlier studies.

  1. Chemistry of fruit flies: Glandular secretion ofBactrocera (Polistomimetes) visenda (Hardy).

    Science.gov (United States)

    Krohn, S; Fletcher, M T; Kitching, W; Moore, C J; Drew, R A; Francke, W

    1992-12-01

    The major component (>90% of volatiles) of the male rectal glandular extract of the nonpest speciesBactrocera visenda (Hardy) is 3-methyl2-butenyl acetate, with minor components being the isomeric 3-methyl-3-butenyl acetate, the homologous esters, 3-methyl-2-butenyl propanoate and 3-methyl-2-butenyl formate, along with 3-methyl-2-buten-1-ol, 3-methyl-2-butenal, and 3-methylbutyl acetate. None of these compounds has been identified previously from aBactrocera species, supporting the view thatBactrocera visenda is taxonomically distant from otherBactrocera species identified from the Australian mainland. This collection of compounds adds to the known types utilized by dipteran species and emphasizes their extensive biosynthetic capability.

  2. Students' Reading Responses to Tess of the d'Urbervilles, a Novel by Thomas Hardy

    Directory of Open Access Journals (Sweden)

    Yazid Basthomi

    2016-02-01

    Full Text Available The study explored how students responded to Tess of the d'Urbervilles, a novel by Thomas Hardy. This study was a case study of an in-tact class of Prose I at the English Department, Universitas Negeri Malang. The data were collected from 25 students, and were in the form of students' papers, written in English, which were of the students' personal responses towards the novel. The study found that the students resorted to their re-ligius knowledge (ideology when responding to the characters and subject matter of the novel. Students also developed certain kinds of feeling (emotion as their religious ideology was challenged by that offered by the novel. The study also diclosed that the students' responses fell into the categories of thematic and empathetic. It follows that teachers of Literature need to make attempts to situate the students to arrive at higher level of responses: motivational, predictive, and critical-evaluative.

  3. Observation of the Cosmic Ray Moon shadowing effect with the ARGO-YBJ experiment

    CERN Document Server

    Di Sciascio, G

    2011-01-01

    Cosmic rays are hampered by the Moon and a deficit in its direction is expected (the so-called \\emph{Moon shadow}). The Moon shadow is an important tool to determine the performance of an air shower array. In fact, the displacement of the shadow center, due to the bending effect of the Geomagnetic field on the propagation of cosmic rays, allows to set the energy scale of the primary particles inducing the showers observed by the detector. The shape of the shadow permits to determine the detector point spread function. The position of the deficit at high energy allows evaluating its pointing accuracy. Here we present the observation of the cosmic ray Moon shadowing effect carried out by the ARGO-YBJ experiment (Yangbajing Cosmic Ray Laboratory, Tibet, P.R. China, 4300 m a.s.l., 606 g/cm$^2$) in the multi-TeV energy region with high statistical significance (70 standard deviations). By means of an accurate Monte Carlo simulation of the cosmic rays propagation in the Earth-Moon system we have studied the role of...

  4. Gamma ray flares from Mrk421 in 2008 observed with the ARGO-YBJ detector

    CERN Document Server

    al., G Aielli et

    2010-01-01

    In 2008 the blazar Markarian 421 entered a very active phase and was one of the brightest sources in the sky at TeV energies, showing frequent flaring episodes. Using the data of ARGO-YBJ, a full coverage air shower detector located at Yangbajing (4300 m a.s.l., Tibet, China), we monitored the source at gamma ray energies E > 0.3 TeV during the whole year. The observed flux was variable, with the strongest flares in March and June, in correlation with X-ray enhanced activity. While during specific episodes the TeV flux could be several times larger than the Crab Nebula one, the average emission from day 41 to 180 was almost twice the Crab level, with an integral flux of (3.6 +-0.6) 10^-11 photons cm^-2 s^-1 for energies E > 1 TeV, and decreased afterwards. This paper concentrates on the flares occurred in the first half of June. This period has been deeply studied from optical to 100 MeV gamma rays, and partially up to TeV energies, since the moonlight hampered the Cherenkov telescope observations during the ...

  5. Gamma-Ray Flares from Mrk421 in 2008 observed with the ARGO-YBJ experiment

    CERN Document Server

    Di Sciascio, G

    2009-01-01

    In 2008, the blazar Mrk421 entered in a very active phase and was one of the brightest sources in the sky at TeV energies, showing strong and frequent flaring. We searched for gamma-ray emission at energies E > 0.8 TeV during the whole 2008 with the ARGO-YBJ experiment, a full coverage air shower detector located at Yangbajing (4300 m a.s.l., Tibet, P.R. China). The observed signal is not constant and in correlation with X-ray measurements. The average emission, during the active period of the source, was about twice the Crab Nebula level, with an integral flux of (4.9$\\pm 2.0$)x 10$^{-11}$ photons cm$^{-2}$ s$^{-1}$ for E$_{\\gamma}$ >1 TeV. This paper concentrates on 2008 June when the Mrk421 flaring activity has been studied from optical to 100 MeV gamma rays, and only partially up to TeV energies, since the moonlight hampered the Cherenkov telescope observations after 8 June. Our data complete these observations, with the detection of a second flare of intensity of about 7 Crab units on June 11-13, with a ...

  6. Latest results on cosmic ray physics from the ARGO-YBJ experiment

    Energy Technology Data Exchange (ETDEWEB)

    De Mitri, Ivan [Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Lecce (Italy); Istituto Nazionale di Fisica Nucleare (INFN) - Sezione di Lecce, Lecce (Italy)

    2014-04-01

    Cosmic ray physics in the 10{sup 12}–10{sup 15} eV primary energy range is among the main scientific goals of the ARGO-YBJ experiment. The detector, located in the Cosmic Ray Observatory of Yangbajing (Tibet, China) at 4300 m a.s.l., is a full coverage extensive air shower array consisting of a carpet of Resistive Plate Chambers (RPCs) distributed over an area of more than 10 000 m{sup 2}. The apparatus layout, performance and location offer a unique opportunity for a detailed study of several characteristics of the hadronic component of the cosmic ray flux in an energy window marked by the transition from direct to indirect measurements. Moreover, the analog readout of the RPC signals indeed provides a powerful tool to study, with unprecedented resolution and without saturation, the extensive air shower space–time structure down to few meters from its axis. Latest results concerning the study of cosmic ray energy spectrum, mass composition and arrival directions will be given together with the search for an antiproton signal, the proton–air cross-section measurement, the study of the interplanetary magnetic field, and the effects of the geomagnetic field on secondary particles. Furthermore, particle distributions close to the shower axis are being extensively studied, also giving new inputs, in the very forward region, to the hadronic interaction models currently used for understanding particle physics and cosmic rays up to the highest energies.

  7. Measurement of the Cosmic Ray Energy Spectrum with ARGO-YBJ

    CERN Document Server

    ,

    2014-01-01

    The ARGO-YBJ detector, located at high altitude in the Cosmic Ray Observatory of Yangbajing in Tibet (4300 m asl, about 600 g/cm2 of atmospheric depth) provides the opportunity to study, with unprecedented resolution, the cosmic ray physics in the primary energy region between 10^{12} and 10^{16} eV. The preliminary results of the measurement of all-particle and light-component (i.e. protons and helium) energy spectra between approximately 5 TeV and 5 PeV are reported and discussed. The study of such energy region is particularly interesting because not only it allows a better understanding of the so called 'knee' of the energy spectrum and of its origin, but also provides a powerful cross-check among very different experimental techniques. The comparison between direct measurements by balloons/satellites and the results by surface detectors, implying the knowledge of shower development in the atmosphere, also allows to test the hadronic interaction models currently used for understanding particle and cosmic ...

  8. ARGOS III: Stellar Populations in the Galactic Bulge of the Milky Way

    CERN Document Server

    Ness, M; Athanassoula, E; de Boer, E Wylie; Hawthorn, J Bland; Asplund, M; Lewis, G F; Yong, D; Lane, R R; Kiss, L L

    2012-01-01

    We present the metallicity results from the ARGOS spectroscopic survey of the Galactic bulge. Our aim is to understand the formation of the Galactic bulge: did it form via mergers, as expected from Lambda CDM theory, or from disk instabilities, as suggested by its boxy/peanut shape, or both? We have obtained spectra for 28,000 stars at a spectral resolution of R = 11,000. From these spectra, we have determined stellar parameters and distances to an accuracy of -0.5 are part of the boxy/peanut bar/bulge. We associate the lower metallicity stars ([Fe/H] -0.5, we find two discrete populations; (i) stars with [Fe/H] ~ -0.25 which provide a roughly constant fraction of the stars in the latitude interval b = -5 deg to -10 deg, and (ii) a kinematically colder, more metal-rich population with mean [Fe/H] ~ +0.15 which is more prominent closer to the plane. The changing ratio of these components with latitude appears as a vertical abundance gradient of the bulge. We attribute both of these bulge components to instab...

  9. Assessing performance of Bayesian state-space models fit to Argos satellite telemetry locations processed with Kalman filtering.

    Science.gov (United States)

    Silva, Mónica A; Jonsen, Ian; Russell, Deborah J F; Prieto, Rui; Thompson, Dave; Baumgartner, Mark F

    2014-01-01

    Argos recently implemented a new algorithm to calculate locations of satellite-tracked animals that uses a Kalman filter (KF). The KF algorithm is reported to increase the number and accuracy of estimated positions over the traditional Least Squares (LS) algorithm, with potential advantages to the application of state-space methods to model animal movement data. We tested the performance of two Bayesian state-space models (SSMs) fitted to satellite tracking data processed with KF algorithm. Tracks from 7 harbour seals (Phoca vitulina) tagged with ARGOS satellite transmitters equipped with Fastloc GPS loggers were used to calculate the error of locations estimated from SSMs fitted to KF and LS data, by comparing those to "true" GPS locations. Data on 6 fin whales (Balaenoptera physalus) were used to investigate consistency in movement parameters, location and behavioural states estimated by switching state-space models (SSSM) fitted to data derived from KF and LS methods. The model fit to KF locations improved the accuracy of seal trips by 27% over the LS model. 82% of locations predicted from the KF model and 73% of locations from the LS model were model estimates (5.6 ± 5.6 km) was nearly half that of LS estimates (11.6 ± 8.4 km). Accuracy of KF and LS modelled locations was sensitive to precision but not to observation frequency or temporal resolution of raw Argos data. On average, 88% of whale locations estimated by KF models fell within the 95% probability ellipse of paired locations from LS models. Precision of KF locations for whales was generally higher. Whales' behavioural mode inferred by KF models matched the classification from LS models in 94% of the cases. State-space models fit to KF data can improve spatial accuracy of location estimates over LS models and produce equally reliable behavioural estimates.

  10. OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ

    Energy Technology Data Exchange (ETDEWEB)

    Bartoli, B.; Catalanotti, S. [Dipartimento di Fisica dell' Universita di Napoli ' Federico II' , Complesso Universitario di Monte Sant' Angelo, via Cinthia, 80126 Napoli (Italy); Bernardini, P.; Bleve, C. [Dipartimento di Matematica e Fisica ' Ennio De Giorgi' , Universita del Salento, via per Arnesano, 73100 Lecce (Italy); Bi, X. J.; Cao, Z.; Chen, S. Z.; Chen, Y. [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing (China); Bolognino, I. [Dipartimento di Fisica Nucleare e Teorica dell' Universita di Pavia, via Bassi 6, 27100 Pavia (Italy); Branchini, P.; Budano, A. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, via della Vasca Navale 84, 00146 Roma (Italy); Melcarne, A. K. Calabrese [Istituto Nazionale di Fisica Nucleare-CNAF, Viale Berti-Pichat 6/2, 40127 Bologna (Italy); Camarri, P. [Dipartimento di Fisica dell' Universita di Roma ' Tor Vergata' , via della Ricerca Scientifica 1, 00133 Roma (Italy); Cardarelli, R. [Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma (Italy); Cattaneo, C. [Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via Bassi 6, 27100 Pavia (Italy); Chen, T. L. [Tibet University, 850000 Lhasa, Xizang (China); Creti, P. [Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, via per Arnesano, 73100 Lecce (Italy); Cui, S. W. [Hebei Normal University, Shijiazhuang 050016, Hebei (China); Dai, B. Z. [Yunnan University, 2 North Cuihu Rd., 650091 Kunming, Yunnan (China); Staiti, G. D' Ali [Dipartimento di Fisica, Universita degli Studi di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo (Italy); Collaboration: Argo-YBJ Collaboration; and others

    2012-12-01

    The extended gamma-ray source MGRO J1908+06, discovered by the Milagro air shower detector in 2007, has been observed for {approx}4 years by the ARGO-YBJ experiment at TeV energies, with a statistical significance of 6.2 standard deviations. The peak of the signal is found at a position consistent with the pulsar PSR J1907+0602. Parameterizing the source shape with a two-dimensional Gauss function, we estimate an extension of {sigma}{sub ext} = 0.{sup 0}49 {+-} 0.{sup 0}22, which is consistent with a previous measurement by the Cherenkov Array H.E.S.S. The observed energy spectrum is dN/dE = 6.1 {+-} 1.4 Multiplication-Sign 10{sup -13} (E/4 TeV){sup -2.54{+-}0.36} photons cm{sup -2} s{sup -1} TeV{sup -1}, in the energy range of {approx}1-20 TeV. The measured gamma-ray flux is consistent with the results of the Milagro detector, but is {approx}2-3 times larger than the flux previously derived by H.E.S.S. at energies of a few TeV. The continuity of the Milagro and ARGO-YBJ observations and the stable excess rate observed by ARGO-YBJ and recorded in four years of data support the identification of MGRO J1908+06 as the steady powerful TeV pulsar wind nebula of PSR J1907+0602, with an integrated luminosity over 1 TeV {approx} 1.8 times the luminosity of the Crab Nebula.

  11. Measurement of the cosmic ray all-particle and light-component energy spectra with the ARGO-YBJ experiment

    Directory of Open Access Journals (Sweden)

    De Mitri I.

    2015-01-01

    Full Text Available The ARGO-YBJ detector, located at high altitude in the Cosmic Ray Observatory of YangBaJing in Tibet (4300 m asl, about 600 g/cm2 of atmospheric depth provides the opportunity for the study, with unprecedented resolution, of cosmic ray physics in the primary energy region between 1012 and 1016 eV. Preliminary results of the measurements of the all-particle and light-component (i.e. protons and helium energy spectra between approximately 5 TeV and 5 PeV are reported and discussed.

  12. Estimation of the proton energy spectrum in knee region by analog read-out of ARGO-YBJ experiment

    Institute of Scientific and Technical Information of China (English)

    QU Xiao-Bo; CHEN Song-Zhan; ZHA Min; ZHANG Xue-Yao; FENG Cun-Feng

    2008-01-01

    Based on the six months data set of ARGO-YBJ experiment with analog read-out and its Monte Carlo simulation,we study the difference between different primaries induced showers by using the space-time information of the charged particles in Extensive Air Showers.With five parameters which can efficiently pick out primary proton induced showers as inputs of an artificial neural network,the proton spectrum from 100 TeV to 10 PeV can be obtained.

  13. Experimental Research on Atmospheric Electric Field and Extensive Air Shower Particle Increasing During Thunderstorms with ARGO-YBJ

    Institute of Scientific and Technical Information of China (English)

    XU Bin; ZHANG Ying; JIA Huan-Yu

    2008-01-01

    From April lst to August 14th, 2006, thunderstorms had been recorded at Yangbajing Cosmic Ray Observatory by ARGO-YBJ experiment. This paper analyzed the correlation between atmospheric electric field (AEF) and "scaler mode" counting rate during thunderstorm. Counting rates of multiplicities n = 1,2 were found to have a large increase ( from 1.02% to 9.03% ), while there was few or no changes in those of multiplicities n =3 and n≥4 during the thunderstorms. The counts of different multiplicities had different feedbacks on the violent change of AEF, which showed that their energy and most components were distinguishing.

  14. Revision of deposition and weathering parameters for the ingestion dose module (ECOSYS) of the ARGOS and RODOS decision support systems

    DEFF Research Database (Denmark)

    Andersson, Kasper Grann; Nielsen, Sven Poul; Thørring, Håvard;

    2011-01-01

    The ECOSYS model is the ingestion dose model integrated in the ARGOS and RODOS decision support systems for nuclear emergency management. The parameters used in this model have however not been updated in recent years, where the level of knowledge on various environmental processes has increased...... considerably. A Nordic work group has carried out a series of evaluations of the general validity of current ECOSYS default parameters. This paper specifically discusses the parameter revisions required with respect to the modelling of deposition and natural weathering of contaminants on agricultural crops...

  15. Mesoscale variability of water masses in the Arabian Sea as revealed by ARGO floats

    Directory of Open Access Journals (Sweden)

    X. Carton

    2011-06-01

    Full Text Available By analysing ARGO float data over the last four years, some aspects of the mesoscale variability of water masses in the Arabian Sea are described.

    The Red Sea Water outflow is strong in the Southwestern Gulf of Aden, in particular when a cyclonic gyre predominates in this region. Salinities of 36.5 and temperatures of 16 °C are found there between 600 and 1000 m depths. The Red Sea Water is more dilute in the eastern part of the Gulf, and fragments of this water mass can be advected offshore across the gulf or towards its northern coast by the regional gyres. The Red Sea Water outflow is also detected along the northeastern coast of Socotra, and fragments of RSW are found between one and three degrees of latitude north of this island. In the whole Gulf of Aden, the correlation between the deep motions of the floats and the SSH measured by altimetry is strong, at regional scale. The finer scale details of the float trajectories are more often related to the anomalous water masses that they encounter.

    The Persian Gulf Water (PGW is found in the float profiles near Ras ash Sharbatat (near 57° E, 18° N, again with 36.5 in salinity and about 18–19 °C in temperature. These observations were achieved in winter when the southwestward monsoon currents can advect PGW along the South Arabian coast. Fragments of PGW are found in the Arabian Sea between 18 and 20° N and 63 and 65° E, showing that this water mass can escape the Gulf of Oman southeastward, in particular during summer.

  16. Water intrusions and particle signatures in the Black Sea: a Biogeochemical-Argo float investigation

    Science.gov (United States)

    Stanev, Emil Vassilev; Grayek, Sebastian; Claustre, Hervé; Schmechtig, Chaterine; Poteau, Antoine

    2017-09-01

    Continuous observations during 3 years with a vertical resolution of 1 dbar from two Bio-Argo floats in the Black Sea that were equipped with oxygen optodes, chlorophyll fluorometers, and backscattering sensors are analyzed. The particle backscattering coefficient, b bp provides a proxy for the concentration of suspended particles. The observations clearly identify thermal and b bp intrusions down to 700-800 m in the Bosporus inflow area. In this area, b bp is more than five times larger than elsewhere, which could indicate bacterial abundance and possible biological involvement in the precipitation of Mn-containing particles. The b bp anomalies become much shallower than the temperature anomalies with increasing distance to the east of the strait. Their maxima are located between the onset of the suboxic zone and the upper part of the anoxic layer. Unlike well-known intrusions that are caused by inflow, open ocean intrusions are shallower and often characterized by multiple layers of backscatter maxima with thicknesses of only 15-20 m. The ratio between backscattering coefficients measured at two wavelengths, which gives a proxy for particle size, shows that the relative amount of larger size particles in the anoxic layer increases with depth. The particle concentrations and their size distribution display different vertical variability, which indicates the complex transformation of biological matter. The lower concentration of particles and lower chlorophyll-a during the extremely warm 2016 reveals an overall positive correlation between the two properties. The trends in the particle backscattering coefficient in the suboxic zone during 2013-2016 could indirectly reveal a biogeochemical response to temperature changes.

  17. Decommissioning process of the experimental nuclear reactor ARGOS, sited at the Technical School of Industrial Engineering in Barcelona; Proceso de desmantelamiento del reactor nuclear experimental Argos de la Universidad Politecnica de Catalunya

    Energy Technology Data Exchange (ETDEWEB)

    Ortega Aramburu, X.; Duch Guillen, M. A.

    2005-07-01

    The experimental nuclear reactor ARGOS, sited at the Technical School of Industrial Engineering in Barcelona, was an experimental reactor used for training purposes, from 1963 to 1977. Due to economic and administrative circumstances this facility was closed down at the end of this period and the fuel remained the fuel inside the reactor core. In 1994 the fuel was removed. The administrative licence was finally agreed with the authorities in 1998 after a long delay. The decommissioning operations began in 2001. The University dismantled, temporarily stored, checked and classified about 1200 components with a total weight of 154.4 t. The material which was declassified from the radiation protection point of view was approximately 99.9% of all the material. After presenting the final documents to the appropriate authorities the formal closing declaration was agreed in December 2003. After this date the site could be used for any purpose and it was the first case of the decommissioning of a nuclear reactor in Spain. Recently the ARGOS building have been finally demolished. (Author)

  18. Thomas Hardy and his Tess of the d' Urbervilles: Analysis of the images of birds in Tess of the d' Urbervilles

    Institute of Scientific and Technical Information of China (English)

    李宁; 张志敏

    2009-01-01

    The article gives a brief introduction of Thomas Hardy and His Tess of the d'Urberville, the image of birds in Tess of the d 'Urberville and its importance for illustrating the theme has also been analyzed.

  19. A Complete Analogue of Hardy's Theorem on $SL_2 (\\mathbb{R})$ and Characterization of the Heat Kernel

    Indian Academy of Sciences (India)

    Rudra P Sarkar

    2002-11-01

    A theorem of Hardy characterizes the Gauss kernel (heat kernel of the Laplacian) on $\\mathbb{R}$ from estimates on the function and its Fourier transform. In this article we establish a full group version of the theorem for $SL_2(\\mathbb{R})$ which can accommodate functions with arbitrary -types. We also consider the `heat equation' of the Casimir operator, which plays the role of the Laplacian for the group. We show that despite the structural difference of the Casimir with the Laplacian on $\\mathbb{R}^n$ or the Laplace-Beltrami operator on the Riemannian symmetric spaces, it is possible to have a heat kernel. This heat kernel for the full group can also be characterized by Hardy-like estimates.

  20. Relationships of Hardiness to Physical and Mental Health Status in Military Men: A Test of Mediated Effects

    Science.gov (United States)

    2013-01-01

    265–278. Kee, C. C. (2003). Older adults with osteoarthritis: Psychological status and physical function. Journal of Gerontological Research, 29, 26–34...virus. Applied Nursing Research, 6, 132–136. Nicholas, P. K., & Webster, A. (1996). A behavioral medicine intervention in persons with HIV. Clinical ...Consulting and Clinical Psychology, 46, 348–349. Smith, N., Young, A., & Lee, C. (2004). Optimism, health-related hardiness, and well-being among older