WorldWideScience

Sample records for unique vantage point

  1. Children’s Vantage Point of Recalling Traumatic Events

    Science.gov (United States)

    Dawson, Katie S.; Bryant, Richard A.

    2016-01-01

    This study investigated the recollections of child survivors of the 2004 Asian tsunami in terms of their vantage point and posttraumatic stress disorder (PTSD) responses. Five years after the tsunami, 110 children (aged 7–13 years) living in Aceh, Indonesia were assessed for source of memories of the tsunami (personal memory or second-hand source), vantage point of the memory, and were administered the Children’s Revised Impact of Event Scale-13. Fifty-three children (48%) met criteria for PTSD. Two-thirds of children reported direct memories of the tsunami and one-third reported having memories based on reports from other people. More children (97%) who reported an indirect memory of the tsunami recalled the event from an onlooker’s perspective to some extent than those who recalled the event directly (63%). Boys were more likely to rely on stories from others to reconstruct their memory of the tsunami, and to adopt an observer perspective. Boys who adopted an observer’s perspective had less severe PTSD than those who adopted a field perspective. These findings suggest that, at least in the case of boys, an observer perspectives of trauma can be associated with levels of PTSD. PMID:27649299

  2. Vantage Theory and Linguistic Relativity

    Science.gov (United States)

    Allan, Keith

    2010-01-01

    Rob MacLaury's Vantage Theory, VT, models the way in which a cognizer constructs, recalls, uses, and modifies a category in terms of point of view or vantage. Alongside of VT, there is place for the kind of semantic specification found in the lexicon. VT2 [Allan, Keith, 2002. "Vantage theory, VT2, and number." "Language Sciences" 24(5-6), 679-703…

  3. Vantage Theory and Linguistic Relativity

    Science.gov (United States)

    Allan, Keith

    2010-01-01

    Rob MacLaury's Vantage Theory, VT, models the way in which a cognizer constructs, recalls, uses, and modifies a category in terms of point of view or vantage. Alongside of VT, there is place for the kind of semantic specification found in the lexicon. VT2 [Allan, Keith, 2002. "Vantage theory, VT2, and number." "Language Sciences" 24(5-6), 679-703…

  4. On Construals and Vantages

    Science.gov (United States)

    Winters, Margaret E.

    2010-01-01

    Vantage Theory (VT) and Cognitive Grammar (CG) both rely crucially on the cognitive phenomenon of categorization as well as on the semantic/pragmatic notion of participant point of view in making claims about human linguistic production and perception. In this paper these commonalities of commitment are explored, as are the differences in the ways…

  5. Uniqueness of entire functions and fixed points

    OpenAIRE

    Chang, Jianming; Fang, Mingliang

    2002-01-01

    Let $f$ be a nonconstant entire function. %If $f(z)=z$ $\\Longleftrightarrow $ $f'(z)=z$, and %$f'(z)=z$ $\\Longrightarrow $ $f''(z)=z$, then $f\\equiv f'$. In particular, If $f$, $f'$ and $f''$ have the same fixed points, then $f\\equiv f'.$

  6. Uniqueness of entire functions and fixed points

    OpenAIRE

    Chang, Jianming; Fang, Mingliang

    2002-01-01

    Let $f$ be a nonconstant entire function. %If $f(z)=z$ $\\Longleftrightarrow $ $f'(z)=z$, and %$f'(z)=z$ $\\Longrightarrow $ $f''(z)=z$, then $f\\equiv f'$. In particular, If $f$, $f'$ and $f''$ have the same fixed points, then $f\\equiv f'.$

  7. Existence and Uniqueness of Fixed Point in Partially Ordered Sets

    Institute of Scientific and Technical Information of China (English)

    Juan J. NIETO; Rosana RODR(I)GUEZ-L(O)PEZ

    2007-01-01

    We prove some fixed point theorems in partially ordered sets, providing an extension of theBanach contractive mapping theorem. Having studied previously the nondecreasing case, we considerin this paper nonincreasing mappings as well as non monotone mappings. We also present someapplications to first-order ordinary differential equations with periodic boundary conditions, provingthe existence of a unique solution admitting the existence of a lower solution.

  8. The Evaluation of BEC Vantage (Oral Test)

    Institute of Scientific and Technical Information of China (English)

    昌根花; 廖海红

    2012-01-01

      The validity and reliability of BEC Vantage are the key factors to the success and failure of oral test. This paper evalu⁃ates the speaking test of BEC Vantage by analyzing the reliability, authenticity, validity and the assessment of the test.

  9. Iberian Spanish "Macho": Vantages and Polysemy in Culturally Defined Meaning

    Science.gov (United States)

    Grace, Caroline A.; Glaz, Adam

    2010-01-01

    This study explores some specific aspects of compatibility between cognitive models. Robert E. MacLaury's theory of vantages as arrangements of coordinates and Lakoff's concept of radial categories are mutually reinforcing to an analysis of semantic polysemy. Vantage Theory (VT) includes the notions of "zooming in" and "zooming out", allowing…

  10. Vantage Points: Perspectives on Airpower and the Profession of Arms

    Science.gov (United States)

    2007-08-01

    Saint Thomas Aquinas (225–74), theologian and thinker 01-Text.indd 1 8/15/07 7:34:39 AM 2 The supreme excellence is not to win a hundred victo­... Thomas Grabowski, crewmember, 2006, Joint Surveillance Target Attack Radar System 01-Text.indd 47 8/15/07 7:35:00 AM 48 Unmanned Aerial Vehicles

  11. Women's Vantage Points and New Realities: A Philosophic Viewing.

    Science.gov (United States)

    Greene, Maxine

    Women who are able to acknowledge their distinctive perceptions and to relate them to their lives are the ones most likely to expose the oppressiveness of a power-driven society. Nathaniel Hawthorne's fictional character, Hester Prynne ("The Scarlet Letter") illustrates a crucial theme: a woman's faculty for critical awareness and her ability to…

  12. Vantage sensitivity: individual differences in response to positive experiences.

    Science.gov (United States)

    Pluess, Michael; Belsky, Jay

    2013-07-01

    The notion that some people are more vulnerable to adversity as a function of inherent risk characteristics is widely embraced in most fields of psychology. This is reflected in the popularity of the diathesis-stress framework, which has received a vast amount of empirical support over the years. Much less effort has been directed toward the investigation of endogenous factors associated with variability in response to positive influences. One reason for the failure to investigate individual differences in response to positive experiences as a function of endogenous factors may be the absence of adequate theoretical frameworks. According to the differential-susceptibility hypothesis, individuals generally vary in their developmental plasticity regardless of whether they are exposed to negative or positive influences--a notion derived from evolutionary reasoning. On the basis of this now well-supported proposition, we advance herein the new concept of vantage sensitivity, reflecting variation in response to exclusively positive experiences as a function of individual endogenous characteristics. After distinguishing vantage sensitivity from theoretically related concepts of differential-susceptibility and resilience, we review some recent empirical evidence for vantage sensitivity featuring behavioral, physiological, and genetic factors as moderators of a wide range of positive experiences ranging from family environment and psychotherapy to educational intervention. Thereafter, we discuss genetic and environmental factors contributing to individual differences in vantage sensitivity, potential mechanisms underlying vantage sensitivity, and practical implications.

  13. Gardiner-Masur boundary of Teichmuller space : Vanishing subsurfaces and Uniquely ergodic boundary points

    CERN Document Server

    Miyachi, Hideki

    2010-01-01

    In this paper, we investigate the structure of the Gardiner-Masur boundary of Teichmuller space. Indeed, we will give a geometric description of boundary comparing to the Duchin-Leininger-Rafi compactification of the space of singular flat structures. We will obtain the coincidence between the Gardiner-Masur boundary and the Thurston boundary at the projective classes of uniquely ergodic measured foliations. We also study the action of the mapping class group on the Gardiner-Masur boundary and characterize the elements by fixed points.

  14. Vantage perspective during encoding: The effects on phenomenological memory characteristics.

    Science.gov (United States)

    Mooren, Nora; Krans, Julie; Näring, Gérard W B; Moulds, Michelle L; van Minnen, Agnes

    2016-05-01

    The vantage perspective from which a memory is retrieved influences the memory's emotional impact, intrusiveness, and phenomenological characteristics. This study tested whether similar effects are observed when participants were instructed to imagine the events from a specific perspective. Fifty student participants listened to a verbal report of car-accidents and visualized the scenery from either a field or observer perspective. There were no between-condition differences in emotionality of memories and the number of intrusions, but imagery experienced from a relative observer perspective was rated as less self-relevant. In contrast to earlier studies on memory retrieval, vantage perspective influenced phenomenological memory characteristics of the memory representation such as sensory details, and ratings of vividness and distancing of the memory. However, vantage perspective is most likely not a stable phenomenological characteristic itself. Implications and suggestions for future research are discussed.

  15. UNIQUE COMMON FIXED POINT OF A FAMILY OF SELF-MAPS WITH SAME TYPE CONTRACTIVE CONDITION IN 2-METRIC SPACE

    Institute of Scientific and Technical Information of China (English)

    Yongjie Piao

    2008-01-01

    In this paper, we prove that a family of self-maps {TI,j}I,j ∈N in 2-metric space has a unique common fixed point if (I) {TI,j}I,j∈N satisfies the same type contractive con-main result generalizes and improves many known unique common fixed point theorems in 2-metric spaces.

  16. Vantage perspective during encoding: The effects on phenomenological memory characteristics

    NARCIS (Netherlands)

    Mooren, N.; Krans, J.; Näring, G.W.B.; Moulds, M.L.; Minnen, A. van

    2016-01-01

    The vantage perspective from which a memory is retrieved influences the memory’s emotional impact, intrusiveness, and phenomenological characteristics. This study tested whether similar effects are observed when participants were instructed to imagine the events from a specific perspective. Fifty st

  17. 75 FR 13168 - American Vantage Companies; Notice of Application

    Science.gov (United States)

    2010-03-18

    ... Vantage Media Corporation to Genius, together with a 49% interest in the Border Grill Restaurant (``Border... working capital and to fund its purchase in September 2007 of Candidates on Demand Group, Inc. (``COD... other than gaming, media, restaurants and entertainment and has always emphasized its operating results...

  18. Vantage perspective during encoding: The effects on phenomenological memory characteristics

    NARCIS (Netherlands)

    Mooren, N.; Krans, J.; Näring, G.W.B.; Moulds, M.L.; Minnen, A. van

    2016-01-01

    The vantage perspective from which a memory is retrieved influences the memory’s emotional impact, intrusiveness, and phenomenological characteristics. This study tested whether similar effects are observed when participants were instructed to imagine the events from a specific perspective. Fifty

  19. Existence and uniqueness for boundary-value problem with additional single point conditions of the Stokes-Bitsadze system

    Directory of Open Access Journals (Sweden)

    Muhammad Tahir

    2012-11-01

    Full Text Available This article shows the uniqueness of a solution to a Bitsadze system of equations, with a boundary-value problem that has four additional single point conditions. It also shows how to construct the solution.

  20. Existence and Uniqueness of Positive Solution for a Singular Nonlinear Second-Order -Point Boundary Value Problem

    Directory of Open Access Journals (Sweden)

    Lv Xuezhe

    2010-01-01

    Full Text Available Abstract The existence and uniqueness of positive solution is obtained for the singular second-order -point boundary value problem for , , , where , , are constants, and can have singularities for and/or and for . The main tool is the perturbation technique and Schauder fixed point theorem.

  1. THE UNIQUENESS OF LIMIT CYCLE AND CRITICAL POINT FOR A CLASS OF CUBIC SYSTEM

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In this paper,we consider an accompany system concerning some class of cubic system. We then prove that the system has at most one limit cycle. Finally,we obtain the topological structure of both the critical points at infinity and the singular points lying on invariant lines.

  2. Existence and uniqueness theorems for impulsive fractional differential equations with the two-point and integral boundary conditions.

    Science.gov (United States)

    Mardanov, M J; Mahmudov, N I; Sharifov, Y A

    2014-01-01

    We study a boundary value problem for the system of nonlinear impulsive fractional differential equations of order α (0 existence and uniqueness of a solution are established by using fixed point theorems. Some illustrative examples are also presented. We extend previous results even in the integer case α = 1.

  3. Existence and uniqueness of solutions for a class of integral equations by common fixed point theorems in IFMT-spaces

    Directory of Open Access Journals (Sweden)

    Reza Saadati

    2016-08-01

    Full Text Available Abstract In this paper, our aim is to address the existence and uniqueness of solutions for a class of integral equations in IFMT-space. Therefore, we introduce the concept of IFMT-spaces and prove a common fixed point theorem in a complete IFMT-space; next we study an application.

  4. Two (multi point nonlinear Lyapunov systems associated with an nth order nonlinear system of differential equations – existence and uniqueness

    Directory of Open Access Journals (Sweden)

    K. N. Murty

    2000-01-01

    Full Text Available This paper presents a criterion for the existence and uniqueness of solutions to two and multipoint boundary value problems associated with an nth order nonlinear Lyapunov system. A variation of parameters formula is developed and used as a tool to obtain existence and uniqueness. We discuss solution of the second order problem by the ADI method and develop a fixed point method to find the general solution of the nth order Lyapunov system. The results of Barnett (SIAM J. Appl. Anal. 24(1, 1973 are a particular case.

  5. A Unique Computational Algorithm to Simulate Probabilistic Multi-Factor Interaction Model Complex Material Point Behavior

    Science.gov (United States)

    Chamis, Christos C.; Abumeri, Galib H.

    2010-01-01

    The Multi-Factor Interaction Model (MFIM) is used to evaluate the divot weight (foam weight ejected) from the launch external tanks. The multi-factor has sufficient degrees of freedom to evaluate a large number of factors that may contribute to the divot ejection. It also accommodates all interactions by its product form. Each factor has an exponent that satisfies only two points--the initial and final points. The exponent describes a monotonic path from the initial condition to the final. The exponent values are selected so that the described path makes sense in the absence of experimental data. In the present investigation, the data used was obtained by testing simulated specimens in launching conditions. Results show that the MFIM is an effective method of describing the divot weight ejected under the conditions investigated.

  6. 77 FR 24941 - Vantage Wind Energy LLC; Order Accepting Updated Market Power Analysis and Providing Direction on...

    Science.gov (United States)

    2012-04-26

    ... Energy Regulatory Commission Vantage Wind Energy LLC; Order Accepting Updated Market Power Analysis and... vertical market power.\\10\\ As discussed ] below, we find that Vantage Wind satisfies the Commission's... its power to its power purchasers. Vantage Wind further states that none of Polsky Energy, Invenergy...

  7. Unique Common Fixed Point for a Family of Mappings with a Nonlinear Quasi-Contractive Type Condition in Metrically Convex Spaces

    Institute of Scientific and Technical Information of China (English)

    Yongjie Piao∗

    2015-01-01

    A classΦof 5-dimensional functions was introduced and an existence and uniqueness of common fixed points for a family of non-self mappings satisfying aφi-quasi-contractive condition and a certain boundary condition was given on complete metrically convex metric spaces, and from which, more general unique common fixed point theorems were obtained.Our main results generalize and improve many same type common fixed point theorems in references.

  8. 77 FR 73039 - Notice of Issuance of Final Determination Concerning Vantage Electric Vehicles

    Science.gov (United States)

    2012-12-07

    ...This document provides notice that U.S. Customs and Border Protection (``CBP'') has issued a final determination concerning the country of origin of Vantage Vehicle electric trucks and vans. Based upon the facts presented, CBP has concluded in the final determination that the United States is the country of origin of the Vantage Vehicle EVX1000 and EVR1000 models of electric trucks and the EVC1000 and EVP1000 models of electric vans for purposes of U.S. Government procurement.

  9. 75 FR 18202 - Vantage Wind Energy, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Science.gov (United States)

    2010-04-09

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Vantage Wind Energy, LLC; Supplemental Notice That Initial Market-Based Rate... notice in the above-referenced proceeding of Vantage Wind Energy, LLC's application for market-based...

  10. Analysis of pedagogical and cultural situations from the vantage point of discourse analysis

    Directory of Open Access Journals (Sweden)

    Antonio José Murillo-Murgueítio

    2003-01-01

    Full Text Available This paper encompasses analyses of pedagogical and cultural situations from the perspective of some of the authors studied in our discourse analysis class. Cultural authenticity and cultural stereotypes are dealt with stemming from real issues and mirroring them through the lens of Kramsch ́s (1998 insights. McCarthy (1994 is referred to when a curricular principle, the familiar to unfamiliar principle is considered as a pedagogical approach in ESL teaching.

  11. The evolution of amorphous hydrocarbons in the ISM: dust modelling from a new vantage point

    CERN Document Server

    Jones, A P; Koehler, M; Verstraete, L; Guillet, V; Bocchio, M; Ysard, N

    2014-01-01

    Context. The evolution of amorphous hydrocarbon materials, a-C(:H), principally resulting from ultraviolet (UV) photon absorption- induced processing, are likely at the heart of the variations in the observed properties of dust in the interstellar medium. Aims. The consequences of the size-dependent and compositional variations in a-C(:H), from aliphatic-rich a-C:H to aromatic-rich a-C, are studied within the context of the interstellar dust extinction and emission. Methods. Newly-derived optical property data for a-C(:H) materials, combined with that for an amorphous forsterite-type silicate with iron nano-particle inclusions, a-SilFe, are used to explore dust evolution in the interstellar medium. Results. We present a new dust model that consists of a power-law distribution of small a-C grains and log-normal distributions of large a-SilFe and a-C(:H) grains. The model, which is firmly anchored by laboratory-data, is shown to quite naturally explain the variations in the infrared (IR) to far-ultraviolet (FUV...

  12. Multiple vantage points on the mental health effects of mass shootings.

    Science.gov (United States)

    Shultz, James M; Thoresen, Siri; Flynn, Brian W; Muschert, Glenn W; Shaw, Jon A; Espinel, Zelde; Walter, Frank G; Gaither, Joshua B; Garcia-Barcena, Yanira; O'Keefe, Kaitlin; Cohen, Alyssa M

    2014-09-01

    The phenomenon of mass shootings has emerged over the past 50 years. A high proportion of rampage shootings have occurred in the United States, and secondarily, in European nations with otherwise low firearm homicide rates; yet, paradoxically, shooting massacres are not prominent in the Latin American nations with the highest firearm homicide rates in the world. A review of the scientific literature from 2010 to early 2014 reveals that, at the individual level, mental health effects include psychological distress and clinically significant elevations in posttraumatic stress, depression, and anxiety symptoms in relation to the degree of physical exposure and social proximity to the shooting incident. Psychological repercussions extend to the surrounding affected community. In the aftermath of the deadliest mass shooting on record, Norway has been in the vanguard of intervention research focusing on rapid delivery of psychological support and services to survivors of the "Oslo Terror." Grounded on a detailed review of the clinical literature on the mental health effects of mass shootings, this paper also incorporates wide-ranging co-author expertise to delineate: 1) the patterning of mass shootings within the international context of firearm homicides, 2) the effects of shooting rampages on children and adolescents, 3) the psychological effects for wounded victims and the emergency healthcare personnel who care for them, 4) the disaster behavioral health considerations for preparedness and response, and 5) the media "framing" of mass shooting incidents in relation to the portrayal of mental health themes.

  13. Preserving Range and Airspace Access for the Air Force Mission: Striving for a Strategic Vantage Point

    Science.gov (United States)

    2011-01-01

    Mark Cochran of the ATAC Corporation helped update us on a modeling approach to range and airspace capacity. At RAND, we are in debt to Bill Taylor and...final report. David pro- vided keen insight in helping the authors craft the final version. In addition, Emily Taylor helped organize MAJCOM training...2011: http://www.rand.org/pubs/monograph_reports/MR1286z1.html Sample, Steve , “Wind Turbines, etc.,” Windmill Policy Sample Overview, briefing slides

  14. Uniqueness of the solution of the Gaudin’s equations, which describe a one-dimensional system of point bosons with zero boundary conditions

    Science.gov (United States)

    Tomchenko, Maksim

    2017-02-01

    We show that the system of Gaudin’s equations for quasimomenta k j , which describes a one-dimensional system of spinless point bosons with zero boundary conditions, has the unique real solution for each set of quantum numbers n j .

  15. UNIQUENESS OF MEROMORPHIC FUNCTIONS WHOSE NONLINEAR DIFFERENTIAL POLYNOMIALS SHARE ONE VALUE OR HAVE THE SAME FIXED POINTS IN AN ANGULAR DOMAIN

    Institute of Scientific and Technical Information of China (English)

    李效敏; 仪洪勋

    2014-01-01

    In this article, we study the uniqueness question of nonconstant meromorphic functions whose nonlinear differential polynomials share 1 or have the same fixed points in an angular domain. The results in this article improve Theorem 1 of Yang and Hua [26], and improve Theorem 1 of Fang and Qiu [6].

  16. A Unique Equation to Estimate Flash Points of Selected Pure Liquids Application to the Correction of Probably Erroneous Flash Point Values

    Science.gov (United States)

    Catoire, Laurent; Naudet, Valérie

    2004-12-01

    A simple empirical equation is presented for the estimation of closed-cup flash points for pure organic liquids. Data needed for the estimation of a flash point (FP) are the normal boiling point (Teb), the standard enthalpy of vaporization at 298.15 K [ΔvapH°(298.15 K)] of the compound, and the number of carbon atoms (n) in the molecule. The bounds for this equation are: -100⩽FP(°C)⩽+200; 250⩽Teb(K)⩽650; 20⩽Δvap H°(298.15 K)/(kJ mol-1)⩽110; 1⩽n⩽21. Compared to other methods (empirical equations, structural group contribution methods, and neural network quantitative structure-property relationships), this simple equation is shown to predict accurately the flash points for a variety of compounds, whatever their chemical groups (monofunctional compounds and polyfunctional compounds) and whatever their structure (linear, branched, cyclic). The same equation is shown to be valid for hydrocarbons, organic nitrogen compounds, organic oxygen compounds, organic sulfur compounds, organic halogen compounds, and organic silicone compounds. It seems that the flash points of organic deuterium compounds, organic tin compounds, organic nickel compounds, organic phosphorus compounds, organic boron compounds, and organic germanium compounds can also be predicted accurately by this equation. A mean absolute deviation of about 3 °C, a standard deviation of about 2 °C, and a maximum absolute deviation of 10 °C are obtained when predictions are compared to experimental data for more than 600 compounds. For all these compounds, the absolute deviation is equal or lower than the reproductibility expected at a 95% confidence level for closed-cup flash point measurement. This estimation technique has its limitations concerning the polyhalogenated compounds for which the equation should be used with caution. The mean absolute deviation and maximum absolute deviation observed and the fact that the equation provides unbiaised predictions lead to the conclusion that

  17. Two (multi point nonlinear Lyapunov systems associated with an n th order nonlinear system of differential equations – existence and uniqueness

    Directory of Open Access Journals (Sweden)

    Murty K. N.

    2000-01-01

    Full Text Available This paper presents a criterion for the existence and uniqueness of solutions to two and multipoint boundary value problems associated with an n th order nonlinear Lyapunov system. A variation of parameters formula is developed and used as a tool to obtain existence and uniqueness. We discuss solution of the second order problem by the ADI method and develop a fixed point method to find the general solution of the n th order Lyapunov system. The results of Barnett (SIAM J. Appl. Anal. 24(1, 1973 are a particular case.

  18. On Existence and Uniqueness of g-Best Proximity Points under φ,θ,α,g-Contractivity Conditions and Consequences

    Directory of Open Access Journals (Sweden)

    Poom Kumam

    2014-01-01

    Full Text Available We collect, improve, and generalize very recent results due to Mongkolkeha et al. (2014 in three directions: firstly, we study g-best proximity points; secondly, we employ more general test functions than can be found in that paper, which lets us prove best proximity results using different kinds of control functions; thirdly, we introduce and handle a weak version of the P-property. Our results can also be applied to the study of coincidence points between two mappings as a particular case. As a consequence, the contractive condition we introduce is more general than was used in the mentioned paper.

  19. On Existence and Uniqueness of g-Best Proximity Points under φ,θ,α,g-Contractivity Conditions and Consequences

    OpenAIRE

    Poom Kumam; Antonio Francisco Roldán López de Hierro

    2014-01-01

    We collect, improve, and generalize very recent results due to Mongkolkeha et al. (2014) in three directions: firstly, we study g-best proximity points; secondly, we employ more general test functions than can be found in that paper, which lets us prove best proximity results using different kinds of control functions; thirdly, we introduce and handle a weak version of the P-property. Our results can also be applied to the study of coincidence points between two mappings as a particular case....

  20. A Unique Coupled Common Fixed Point Theorem for Symmetric (φ,ψ-Contractive Mappings in Ordered G-Metric Spaces with Applications

    Directory of Open Access Journals (Sweden)

    Manish Jain

    2013-01-01

    Full Text Available We establish the existence and uniqueness of coupled common fixed point for symmetric (φ,ψ-contractive mappings in the framework of ordered G-metric spaces. Present work extends, generalize, and enrich the recent results of Choudhury and Maity (2011, Nashine (2012, and Mohiuddine and Alotaibi (2012, thereby, weakening the involved contractive conditions. Our theoretical results are accompanied by suitable examples and an application to integral equations.

  1. Safe sorting of GFP-transduced live cells for subsequent culture using a modified FACS vantage

    DEFF Research Database (Denmark)

    Sørensen, T U; Gram, G J; Nielsen, S D

    1999-01-01

    BACKGROUND: A stream-in-air cell sorter enables rapid sorting to a high purity, but it is not well suited for sorting of infectious material due to the risk of airborne spread to the surroundings. METHODS: A FACS Vantage cell sorter was modified for safe use with potentially HIV infected cells. S...... culture. CONCLUSIONS: Sorting of live infected cells can be performed safely and with no deleterious effects on vector expression using the modified FACS Vantage instrument.......BACKGROUND: A stream-in-air cell sorter enables rapid sorting to a high purity, but it is not well suited for sorting of infectious material due to the risk of airborne spread to the surroundings. METHODS: A FACS Vantage cell sorter was modified for safe use with potentially HIV infected cells...... culture. RESULTS: The bacteriophage sorting showed that the biologically active material was confined to the sorting chamber. A failure mode simulating a nozzle blockage resulted in detectable droplets inside the sorting chamber, but no droplets could be detected when an additional air suction from...

  2. A unique point mutation in the fibroblast growth factor receptor 3 gene (FGFR3) defines a new craniosynostosis syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Muenke, M.; Gripp, K.W.; McDonald-McGinn, D.M. [Univ. of Pennsylvania, Philadelphia, PA (United States)] [and others

    1997-03-01

    The underlying basis of many forms of syndromic craniosynostosis has been defined on a molecular level. However, many patients with familial or sporadic craniosynostosis do not have the classical findings of those craniosynostosis syndromes. Here we present 61 individuals from 20 unrelated families where coronal synostosis is due to an amino acid substitution (Pro250Arg) that results from a single point mutation in the fibroblast growth factor receptor 3 gene on chromosome 4p. In this instance, a new clinical syndrome is being defined on the basis of the molecular finding. In addition to the skull findings, some patients had abnormalities on radiographs of hands and feet, including thimble-like middle phalanges, coned epiphyses, and carpal and tarsal fusions. Brachydactyly was seen in some cases; none had clinically significant syndactyly or deviation of the great toe. Sensorineural hearing loss was present in some, and developmental delay was seen in a minority. While the radiological findings of hands and feet can be very helpful in diagnosing this syndrome, it is not in all cases clearly distinguishable on a clinical basis from other craniosynostosis syndromes. Therefore, this mutation should be tested for in patients with coronal synostosis. 54 refs., 4 figs., 2 tabs.

  3. Combined Thickness of the Modeled Wanapum Basalt and Vantage-Latah Interbed Geomodel Units (wnthk_f)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The wnthk_f grid represents the modeled combined thickness of the Wanapum Basalt and the Vantage/Latah interbed geomodel units at a 500 foot resolution. It is one...

  4. Fixed points and uniqueness of meromorphic functions of differential polynomials%不动点及亚纯函数微分多项式的惟一性

    Institute of Scientific and Technical Information of China (English)

    石新华

    2014-01-01

    运用Nevanlinna值分布理论研究了亚纯函数微分多项式分担不动点的惟一性,将以往结果中的若干条件进行了减弱,从而改进了以前的相关结果。%Use Nevanlinna′s value distribution theory to study the uniqueness problems of differential polynomials of meromorphic functions concerning fixed points, the results reduced some conditions of the previous theorems, and im-provedthe related results.

  5. Existence and uniqueness of extreme point of total power rate functional for hot rolling problem with rigid-plastic SCM model

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The total power rate functional for hot rolling problem with the rigid-plastic SCM model is considered.The gradient operator of the plastic deformation power rate functional is deduced.It is strictly monotone mapping.Further,it is proved that the frictional power rate functional is a convex functional and the tensional stress power rate functional is a linear one.Hence,the total power rate functional is a strictly convex functional.By using nonlinear functional analysis methods,the existence and uniqueness of extreme point of the functional is obtained.

  6. Existence of unique common solution to the system of non-linear integral equations via fixed point results in incomplete metric spaces.

    Science.gov (United States)

    Bahadur Zada, Mian; Sarwar, Muhammad; Radenović, Stojan

    2017-01-01

    In this article, we apply common fixed point results in incomplete metric spaces to examine the existence of a unique common solution for the following systems of Urysohn integral equations and Volterra-Hammerstein integral equations, respectively: [Formula: see text] where [Formula: see text]; [Formula: see text] and [Formula: see text], [Formula: see text] and [Formula: see text] where [Formula: see text], [Formula: see text], u, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text], [Formula: see text], are real-valued measurable functions both in s and r on [Formula: see text].

  7. The Mercy unique device identifier demonstration project: Implementing point of use product identification in the cardiac catheterization laboratories of a regional health system.

    Science.gov (United States)

    Drozda, Joseph P; Dudley, Curtis; Helmering, Paul; Roach, James; Hutchison, Lisa

    2016-06-01

    Mercy, a 4 state health system, conducted an FDA-sponsored demonstration whereby prototype unique device identifiers (UDIs) of coronary stents were implemented in its electronic information systems for safety surveillance and research. To accomplish this, a multi-disciplinary team implemented a point of use barcode scanning inventory management system in all 5 Mercy cardiac catheterization laboratories. The system's potential for improving inventory management and tracking Cath Lab supplies was felt to be sufficiently compelling for system deployment outside of the context of the demonstration. Further, it was felt to be useful for all Cath Lab renewable supplies and not just coronary stents. Benefits included preventing procedure delays, lowering costs, and increasing revenue. Finally, the system is extensible to all implanted medical devices and generalizable to most hospitals. Copyright © 2015 Elsevier Inc. All rights reserved.

  8. Late-onset muscle weakness in partial phosphofructokinase deficiency: a unique myopathy with vacuoles, abnormal mitochondria, and absence of the common exon 5/intron 5 junction point mutation.

    Science.gov (United States)

    Sivakumar, K; Vasconcelos, O; Goldfarb, L; Dalakas, M C

    1996-05-01

    Three patients (ages 51, 59, and 79) from two generations of an Ashkenazi Jewish family had partial (33% activity) phosphofructokinase (PFK) deficiency that presented with fixed muscle weakness after the age of 50 years. MR spectroscopy revealed accumulation of phosphomonoesters during exercise. Muscle biopsy showed a vacuolar myopathy with increased autophagic activity and several ragged-red and cytochrome c oxidase-negative fibers. The older patient, age 79 at biopsy, had several necrotic fibers. Electron microscopy revealed subsarcolemmal and intermyofibrillar glycogen accumulation and proliferation of mitochondria with paracrystalline inclusions, probably related to reduced availability of energy due to impaired glycolysis. The common point mutation of exon 5/intron 5 junction seen in Jewish Ashkenazi patients with PFK deficiency was excluded. We conclude that late-onset fixed muscle weakness occurs in partial PFK deficiency and it may represent the end result of continuing episodes of muscle fiber destruction. Partial enzyme deficiency in two successive generations suggests a unique molecular mechanism.

  9. Studies in Historical Replication in Psychology VII: The Relative Utility of "Ancestor Analysis" from Scientific and Educational Vantages

    Science.gov (United States)

    Ranney, Michael Andrew

    2008-01-01

    This article discusses, from various vantages, Ryan Tweney's (this issue) pedagogical technique of employing historical replications of psychological experiments with graduate students in psychology. A "prima facie" perspective suggests great promise for this sort of academic "ancestor analysis," particularly given the enthusiasm and skill…

  10. 78 FR 29201 - Notice of Availability of Finding of No Significant Impact for the Proposed Vantage Pipeline US...

    Science.gov (United States)

    2013-05-17

    ... ethane from a source near Tioga, North Dakota, United States, northwest through Saskatchewan, Canada, to... Dakota to markets in Alberta, Canada. The entire proposed Vantage Pipeline in the United States would... construction, connection, operation, or maintenance at the borders of the United States, of facilities for the...

  11. Gadamer's Philosophical Hermeneutics: The Vantage Points and the Horizons in Readers' Responses to an American Literature Text.

    Science.gov (United States)

    Rees, Dilys Karen

    2003-01-01

    Presents how Gadamer's philosophical hermeneutics can be used to analyze readers' responses to an American literature text. Readers are Brazilian college students reading a text by the American author, Amy Tan. (Author/VWL)

  12. Synthesis and properties of 1,3,5-benzene periodic mesoporous organosilica (PMO): novel aromatic PMO with three point attachments and unique thermal transformations.

    Science.gov (United States)

    Kuroki, Masakatsu; Asefa, Tewodros; Whitnal, Wesley; Kruk, Michal; Yoshina-Ishii, Chiaki; Jaroniec, Mietek; Ozin, Geoffrey A

    2002-11-20

    A new aromatic periodic mesoporous organosilica material containing benzene functional groups that are symmetrically integrated with three silicon atoms in an organosilica mesoporous framework is reported. The material has a high surface area, well-ordered mesoporous structure and thermally stable framework aromatic groups. The functional aromatic moieties were observed to undergo sequential thermal transformation from a three to two and then to a one point attachment within the framework upon continuous thermolysis under air before eventually being converted to periodic mesoporous silica devoid of aromatic groups at high temperatures and longer pyrolysis times. The mesoporosity of the material was characterized by powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), and nitrogen porosimetry, whereas the presence and transformation of the aromatic groups in the walls of the materials were characterized by solid-state NMR spectroscopy, mass spectrometry, and thermogravimetric analysis. The attachment of a benzene ring symmetrically onto three siloxanes of the framework was used advantageously as a cross-linker to enhance the thermal stability of the organic group. Some of these properties are investigated in comparison with other aromatic PMOs that have only two point attachments and an amorphous phenylsilica gel that has only one point attachment. The successful synthesis of the first aromatic PMO with its organic group attached within the framework through more than two points is an important step toward the synthesis of PMOs having organic groups with more complex and multiple attachments within the framework.

  13. A vantage from space can detect earlier drought onset: an approach using relative humidity.

    Science.gov (United States)

    Farahmand, Alireza; AghaKouchak, Amir; Teixeira, Joao

    2015-02-25

    Each year, droughts cause significant economic and agricultural losses across the world. The early warning and onset detection of drought is of particular importance for effective agriculture and water resource management. Previous studies show that the Standard Precipitation Index (SPI), a measure of precipitation deficit, detects drought onset earlier than other indicators. Here we show that satellite-based near surface air relative humidity data can further improve drought onset detection and early warning. This paper introduces the Standardized Relative Humidity Index (SRHI) based on the NASA Atmospheric Infrared Sounder (AIRS) observations. The results indicate that the SRHI typically detects the drought onset earlier than the SPI. While the AIRS mission was not originally designed for drought monitoring, we show that its relative humidity data offers a new and unique avenue for drought monitoring and early warning. We conclude that the early warning aspects of SRHI may have merit for integration into current drought monitoring systems.

  14. A small mission concept to the Sun-Earth Lagrangian L5 point for innovative solar, heliospheric and space weather science

    Science.gov (United States)

    Lavraud, B.; Liu, Y.; Segura, K.; He, J.; Qin, G.; Temmer, M.; Vial, J.-C.; Xiong, M.; Davies, J. A.; Rouillard, A. P.; Pinto, R.; Auchère, F.; Harrison, R. A.; Eyles, C.; Gan, W.; Lamy, P.; Xia, L.; Eastwood, J. P.; Kong, L.; Wang, J.; Wimmer-Schweingruber, R. F.; Zhang, S.; Zong, Q.; Soucek, J.; An, J.; Prech, L.; Zhang, A.; Rochus, P.; Bothmer, V.; Janvier, M.; Maksimovic, M.; Escoubet, C. P.; Kilpua, E. K. J.; Tappin, J.; Vainio, R.; Poedts, S.; Dunlop, M. W.; Savani, N.; Gopalswamy, N.; Bale, S. D.; Li, G.; Howard, T.; DeForest, C.; Webb, D.; Lugaz, N.; Fuselier, S. A.; Dalmasse, K.; Tallineau, J.; Vranken, D.; Fernández, J. G.

    2016-08-01

    We present a concept for a small mission to the Sun-Earth Lagrangian L5 point for innovative solar, heliospheric and space weather science. The proposed INvestigation of Solar-Terrestrial Activity aNd Transients (INSTANT) mission is designed to identify how solar coronal magnetic fields drive eruptions, mass transport and particle acceleration that impact the Earth and the heliosphere. INSTANT is the first mission designed to (1) obtain measurements of coronal magnetic fields from space and (2) determine coronal mass ejection (CME) kinematics with unparalleled accuracy. Thanks to innovative instrumentation at a vantage point that provides the most suitable perspective view of the Sun-Earth system, INSTANT would uniquely track the whole chain of fundamental processes driving space weather at Earth. We present the science requirements, payload and mission profile that fulfill ambitious science objectives within small mission programmatic boundary conditions.

  15. IP级单点探测拓扑数据分析%Analysis of IP-Level Topology Data Detected from Single Vantage Point

    Institute of Scientific and Technical Information of China (English)

    赵海; 王琳琳; 张昕; 袁绍谦

    2009-01-01

    由于交叉路由的存在,单点探测所获得的网络拓扑与实际情况有较大差距,采用多点探测虽可以弥补误差但架设代价大并存在大量冗余.基于CAIDA Skitter项目授权的海量数据,重点对单测量点与多测量点数据结果进行对比分析.计算了它们在多个特征量上的差异,并以核数概念为基础,分析了单测量点数据误差在网络各核的分布情况.通过分析发现了误差分布在核内服从幂律、而核间规律可用拟合分布公式进行描述.据此规律可以对单点探测数据进行修正,达到减小误差、接近多测量点整合数据结果的目的.

  16. A Dance or a Marriage? The Relationship between Education and the Law in South Africa Some Personal Observations from Two Vantage Points

    Directory of Open Access Journals (Sweden)

    Johan Beckmann

    2015-12-01

    Full Text Available This article deals with the debate in education and law circles about the convergence of the two fields of knowledge in an area conveniently called education law. It recognises that there is no universal acknowledgement of the existence of such a discipline. Although the article does not present a full scale analysis of the relationship between education and law, it does present some views emerging from the existence and functioning of two organisations in South Africa namely the South African Education Law Association (SAELA and the Interuniversity Centre for Education Law and Policy (CELP. Both of the organisations aim to promote education law research and training. In light of the existing literature the relationship is likened to a marriage of convenience or a dance in which the quality of the relationship between the two fields varies. The author examines and concurs with opinions that there are grounds to support the notion that a discrete field of inquiry named education law does exist in South Africa. However, the relationship still needs to be developed for the field to mature as an academic discipline. Among the problems that have to be addressed are the lack of interest in universities (especially law faculties at former English universities in this field, the subsequent imbalance between educators and jurists active in the field and the failure of educational administrators to abide by the law even if they are aware of what the law requires. Added to this failure is a lack of knowledge among administrators of education law and the presence of a phenomenon termed the use of imagined power among them. The article concludes that there are indications that the relationship between education and the law can lead to the development and promotion of a discrete field of law named education law.

  17. Unique Path Partitions

    DEFF Research Database (Denmark)

    Bessenrodt, Christine; Olsson, Jørn Børling; Sellers, James A.

    2013-01-01

    We give a complete classification of the unique path partitions and study congruence properties of the function which enumerates such partitions.......We give a complete classification of the unique path partitions and study congruence properties of the function which enumerates such partitions....

  18. Unique Access to Learning

    Science.gov (United States)

    Goble, Don

    2009-01-01

    This article describes the many learning opportunities that broadcast technology students at Ladue Horton Watkins High School in St. Louis, Missouri, experience because of their unique access to technology and methods of learning. Through scaffolding, stepladder techniques, and trial by fire, students learn to produce multiple television programs,…

  19. 次线性Emden—Fowler方程两点边值问题的C[0,1]正解的唯一性%The uniqueness of the C[ 0,1 ] positive solution of the two-point boundary value problem of the sublinear Emden-Fowler equations

    Institute of Scientific and Technical Information of China (English)

    刘炳; 闫宝强

    2012-01-01

    Two-point boundary value problem of the sublinear Emden-Fowler equations has been addressed in many literatures, but the uniqueness of the C[0,1 ] positive solution has not been investigated. We employ monotone iterative method to address such problem and derive the uniqueness of the C[ 0,1 ] positive solution of the boundary value problem of such equations.%次线性Emden-Fowler方程两点边值问题在很多文献中用到,但对于该类问题的C[0,1]正解的唯一性还没有研究。本文利用单调迭代方法,对这一问题进行了研究,得出了该类方程两点边值问题的C[0,1]正解是存在且唯一的。

  20. Unique Spectroscopy and Imaging of Mars with JWST

    CERN Document Server

    Villanueva, Geronimo L; Clancy, Todd R; Encrenaz, Therese; Fouchet, Thierry; Hartogh, Paul; Lellouch, Emmanuel; Lopez-Valverde, Miguel A; Mumma, Michael J; Novak, Robert E; Smith, Michael D; Vandaele, Ann-Carine; Wolff, Michael J; Ferruit, Pierre; Milam, Stefanie N

    2015-01-01

    In this document, we summarize the main capabilities of the James Webb Space Telescope (JWST) for performing observations of Mars. The distinctive vantage point of JWST at the Sun-Earth Lagrange point (L2) will allow sampling the full observable disk, permitting the study of short-term phenomena, diurnal processes (across the East-West axis) and latitudinal processes between the hemispheres (including seasonal effects) with excellent spatial resolutions (0.07 arcsec at 2 {\\mu}m). Spectroscopic observations will be achievable in the 0.7-5 {\\mu}m spectral region with NIRSpec at a maximum resolving power of 2700, and with 8000 in the 1-1.25 {\\mu}m range. Imaging will be attainable with NIRCam at 4.3 {\\mu}m and with two narrow filters near 2 {\\mu}m, while the nightside will be accessible with several filters in the 0.5 to 2 {\\mu}m. Such a powerful suite of instruments will be a major asset for the exploration and characterization of Mars. Some science cases include the mapping of the water D/H ratio, investigatio...

  1. NASA's unique networking environment

    Science.gov (United States)

    Johnson, Marjory J.

    1988-01-01

    Networking is an infrastructure technology; it is a tool for NASA to support its space and aeronautics missions. Some of NASA's networking problems are shared by the commercial and/or military communities, and can be solved by working with these communities. However, some of NASA's networking problems are unique and will not be addressed by these other communities. Individual characteristics of NASA's space-mission networking enviroment are examined, the combination of all these characteristics that distinguish NASA's networking systems from either commercial or military systems is explained, and some research areas that are important for NASA to pursue are outlined.

  2. The Lagrangian points

    Science.gov (United States)

    Linton, J. Oliver

    2017-03-01

    There are five unique points in a star/planet system where a satellite can be placed whose orbital period is equal to that of the planet. Simple methods for calculating the positions of these points, or at least justifying their existence, are developed.

  3. Uniqueness of meromorphic functions concerning differential polynomials

    Institute of Scientific and Technical Information of China (English)

    QIAO Lei

    2007-01-01

    Based on a unicity theorem for entire funcitions concerning differential polynomials proposed by M. L. Fang and W. Hong, we studied the uniqueness problem of two meromorphic functions whose differential polynomials share the same 1-point by proving two theorems and their related lemmas. The results extend and improve given by Fang and Hong's theorem.

  4. Uniqueness is Important in Competition

    Institute of Scientific and Technical Information of China (English)

    FENG Ai-Xia; XV Xiu-Lian; HE Da-Ren

    2009-01-01

    We propose a quantitative network description on the function of uniqueness in a competition system. Two statistical parameters, competition ability and uniqueness are defined, and their relationship in ordinary cases is analytically discussed. The competition between Chinese regional universities is taken as an example. The empirical investigation results show that the uniqueness of a university is really important in competition. Also,uniqueness is very helpful in the promotion of the university overall quality.

  5. On Uniqueness of coalitional equilibria

    NARCIS (Netherlands)

    Finus, M.; Mouche, van P.H.M.; Rundshagen, B.

    2014-01-01

    For the so-called "new approach" of coalitio formation it is important that coalitional equilibria are unique. Uniqueness comes down to existene and to semi-uniqueness, i.e.\\\\that there exists at most one equilibrium. Although conditions for existence are not problematic, conditions for semi-uniquen

  6. Students Discover Unique Planet

    Science.gov (United States)

    2008-12-01

    Three undergraduate students, from Leiden University in the Netherlands, have discovered an extrasolar planet. The extraordinary find, which turned up during their research project, is about five times as massive as Jupiter. This is also the first planet discovered orbiting a fast-rotating hot star. Omega Centauri ESO PR Photo 45a/08 A planet around a hot star The students were testing a method of investigating the light fluctuations of thousands of stars in the OGLE database in an automated way. The brightness of one of the stars was found to decrease for two hours every 2.5 days by about one percent. Follow-up observations, taken with ESO's Very Large Telescope in Chile, confirmed that this phenomenon is caused by a planet passing in front of the star, blocking part of the starlight at regular intervals. According to Ignas Snellen, supervisor of the research project, the discovery was a complete surprise. "The project was actually meant to teach the students how to develop search algorithms. But they did so well that there was time to test their algorithm on a so far unexplored database. At some point they came into my office and showed me this light curve. I was completely taken aback!" The students, Meta de Hoon, Remco van der Burg, and Francis Vuijsje, are very enthusiastic. "It is exciting not just to find a planet, but to find one as unusual as this one; it turns out to be the first planet discovered around a fast rotating star, and it's also the hottest star found with a planet," says Meta. "The computer needed more than a thousand hours to do all the calculations," continues Remco. The planet is given the prosaic name OGLE2-TR-L9b. "But amongst ourselves we call it ReMeFra-1, after Remco, Meta, and myself," says Francis. The planet was discovered by looking at the brightness variations of about 15 700 stars, which had been observed by the OGLE survey once or twice per night for about four years between 1997 and 2000. Because the data had been made public

  7. 话语强占:网络民粹主义的传播实践%Taking the Vantage Place of Discourse: The Communication Practice of Online Populism

    Institute of Scientific and Technical Information of China (English)

    陈龙

    2011-01-01

    Taking the vantage place of discourse is a kind of communication practice of online populism. For controlling the public opinion, populists take some strategies such as imposing upon the charges, spreading false news, vituperating, romancing the events and so on. As one of the online behaviors, taking the vantage place of discourse can be rooted back to those social problems like untransparency of information and some unfair phenomena, which provide the breeding soil for populism. As a sort of online communication practice, taking the vantage place of discourse harms the society more and more seriously. Considering of that, the government should adjust the measures to cope with the crisis.%话语强占是网络民粹主义的一种传播实践,通过扣帽子、散布假消息、谩骂、渲染、人肉搜索、限制不同声音等策略,达到对舆论的控制。话语强占,作为民粹主义网络行为,源于信息的不透明、不畅通以及现实生活中客观存在的不公正、不公平现象,这些现象给网络民粹主义提供了滋生的土壤,在信息浑水状态下,话语强占可以达到话语压制的效果。网络场域各种力量的竞争,造成网络民粹主义对语用力量的追求,最终是为了达到对批判对象的群众广场审判。话语强占对社会的危害越来越大,政府应该对危机应对体系作出科学的调整。

  8. Uniqueness and existence for bounded boundary value problems

    NARCIS (Netherlands)

    Ehme, J.; Lanz, A.

    2006-01-01

    The existence and uniqueness of solutions for the boundary value problems with general linear point evaluation boundary conditions is established. We assume that f is bounded and that there is uniqueness on a homogeneous problem and on the linear variational problems. (c) 2005 Elsevier Inc. All righ

  9. Uniqueness property for quasiharmonic functions

    Directory of Open Access Journals (Sweden)

    Sevdiyor A. Imomkulov

    2014-10-01

    Full Text Available In this paper we consider a class of continuous functions, called quasiaharmonic functions, admitting best approximations by harmonic polynomials. In this class we prove a uniqueness theorem by analogy with the analytic functions.

  10. Diabetes: Unique to Older Adults

    Science.gov (United States)

    ... Stroke Urinary Incontinence Related Documents PDF Choosing Wisely: Diabetes Tests and Treatments Download Related Video Join our e-newsletter! Aging & Health A to Z Diabetes Unique to Older Adults This section provides information ...

  11. Osteoporosis: Unique to Older Adults

    Science.gov (United States)

    ... our e-newsletter! Aging & Health A to Z Osteoporosis Unique to Older Adults This section provides information ... and widely-prescribed medications for the treatment of osteoporosis. Some serious side effects of these medication have ...

  12. Nutrition: Unique to Older Adults

    Science.gov (United States)

    ... our e-newsletter! Aging & Health A to Z Nutrition Unique to Older Adults This section provides information ... teeth that are needed for grinding up food, nutrition suffers. If you are unable to chew and ...

  13. Tipping Point

    Medline Plus

    Full Text Available ... OnSafety CPSC Stands for Safety The Tipping Point Home > 60 Seconds of Safety (Videos) > The Tipping Point ... 24 hours a day. For young children whose home is a playground, it’s the best way to ...

  14. Existence and Uniqueness of Periodic Solutions for Second Order Differential Equations

    OpenAIRE

    Yuanhong Wei

    2014-01-01

    We study some second order ordinary differential equations. We establish the existence and uniqueness in some appropriate function space. By using Schauder’s fixed-point theorem, new results on the existence and uniqueness of periodic solutions are obtained.

  15. Rufus Choate: A Unique Orator.

    Science.gov (United States)

    Markham, Reed

    Rufus Choate, a Massachusetts lawyer and orator, has been described as a "unique and romantic phenomenon" in America's history. Born in 1799 in Essex, Massachusetts, Choate graduated from Dartmouth College and attended Harvard Law School. Choate's goal was to be the top in his profession. Daniel Webster was Choate's hero. Choate became well…

  16. Uniqueness of PL Minimal Surfaces

    Institute of Scientific and Technical Information of China (English)

    Yi NI

    2007-01-01

    Using a standard fact in hyperbolic geometry, we give a simple proof of the uniqueness of PL minimal surfaces, thus filling in a gap in the original proof of Jaco and Rubinstein. Moreover, in order to clarify some ambiguity, we sharpen the definition of PL minimal surfaces, and prove a technical lemma on the Plateau problem in the hyperbolic space.

  17. On the Nagumo uniqueness theorem

    OpenAIRE

    Octavian G. Mustafa; O'Regan, Donal

    2011-01-01

    By a convenient reparametrisation of the integral curves of a nonlinear ordinary differential equation (ODE), we are able to improve the conclusions of the recent contribution [A. Constantin, Proc. Japan Acad. {\\bf 86(A)} (2010), 41--44]. In this way, we establish a flexible uniqueness criterion for ODEs without Lipschitz-like nonlinearities.

  18. The Lasso Problem and Uniqueness

    CERN Document Server

    Tibshirani, Ryan J

    2012-01-01

    The lasso is a popular tool for sparse linear regression, especially for problems in which the number of variables p exceeds the number of observations n. But when p>n, the lasso criterion is not strictly convex, and hence it may not have a unique minimum. An important question is: when is the lasso solution well-defined (unique)? We review results from the literature, which show that if the predictor variables are drawn from a continuous probability distribution, then there is a unique lasso solution with probability one, regardless of the sizes of n and p. We also show that this result extends easily to $\\ell_1$ penalized minimization problems over a wide range of loss functions. A second important question is: how can we deal with the case of non-uniqueness in lasso solutions? In light of the aforementioned result, this case really only arises when some of the predictor variables are discrete, or when some post-processing has been performed on continuous predictor measurements. Though we certainly cannot c...

  19. Tipping Point

    Medline Plus

    Full Text Available ... Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head ... see news reports about horrible accidents involving young children and furniture, appliance and tv tip-overs. The ...

  20. Uniqueness theorems in linear elasticity

    CERN Document Server

    Knops, Robin John

    1971-01-01

    The classical result for uniqueness in elasticity theory is due to Kirchhoff. It states that the standard mixed boundary value problem for a homogeneous isotropic linear elastic material in equilibrium and occupying a bounded three-dimensional region of space possesses at most one solution in the classical sense, provided the Lame and shear moduli, A and J1 respectively, obey the inequalities (3 A + 2 J1) > 0 and J1>O. In linear elastodynamics the analogous result, due to Neumann, is that the initial-mixed boundary value problem possesses at most one solution provided the elastic moduli satisfy the same set of inequalities as in Kirchhoffs theorem. Most standard textbooks on the linear theory of elasticity mention only these two classical criteria for uniqueness and neglect altogether the abundant literature which has appeared since the original publications of Kirchhoff. To remedy this deficiency it seems appropriate to attempt a coherent description ofthe various contributions made to the study of uniquenes...

  1. Uniqueness and Non-uniqueness in the Einstein Constraints

    CERN Document Server

    Pfeiffer, H P; Pfeiffer, Harald P.; York, James W.

    2005-01-01

    We examine numerically a sequence of free data for the conformal thin sandwich (CTS) equations representing non-linearly perturbed Minkowski spacetimes. We find only one solution for the standard (four) CTS equations; however, we find {\\em two} distinct solutions for the same free data when the lapse is determined by a fifth elliptic equation arising from specification of the time derivative of the mean curvature. For a given {\\em physical} (conformally scaled) amplitude of the perturbation, the solution for the physical data $g_{ij}, K_{ij}$ nevertheless appears to be unique.

  2. Lithium nephropathy: unique sonographic findings.

    Science.gov (United States)

    Di Salvo, Donald N; Park, Joseph; Laing, Faye C

    2012-04-01

    This case series describes a unique sonographic appearance consisting of numerous microcysts and punctate echogenic foci seen on renal sonograms of 10 adult patients receiving chronic lithium therapy. Clinically, chronic renal insufficiency was present in 6 and nephrogenic diabetes insipidus in 2. Sonography showed numerous microcysts and punctate echogenic foci. Computed tomography in 5 patients confirmed microcysts and microcalcifications, which were fewer in number than on sonography. Magnetic resonance imaging in 2 patients confirmed microcysts in each case. Renal biopsy in 1 patient showed chronic interstitial nephritis, microcysts, and tubular dilatation. The diagnosis of lithium nephropathy should be considered when sonography shows these findings.

  3. Mucormycosis in India: unique features.

    Science.gov (United States)

    Chakrabarti, Arunaloke; Singh, Rachna

    2014-12-01

    Mucormycosis remains a devastating invasive fungal infection, with high mortality rates even after active management. The disease is being reported at an alarming frequency over the past decades from India. Indian mucormycosis has certain unique features. Rhino-orbito-cerebral presentation associated with uncontrolled diabetes is the predominant characteristic. Isolated renal mucormycosis has emerged as a new clinical entity. Apophysomyces elegans and Rhizopus homothallicus are emerging species in this region and uncommon agents such as Mucor irregularis and Thamnostylum lucknowense are also being reported. This review focuses on these distinct features of mucormycosis observed in India.

  4. UNIQUE ORAL DRUG DELIVERY SYSTEM

    Institute of Scientific and Technical Information of China (English)

    Raphael M. Ottenbrite; ZHAO Ruifeng; Sam Milstein

    1995-01-01

    An oral drug delivery system using proteinoid microspheres is discussed with respect to its unique dependence on pH. It has been found that certain drugs such as insulin and heparin can be encapsulated in proteinoid spheres at stomach pH's (1-3). These spheres also dissemble at intestinal pH's (6-7) releasing the drug for absorption. Using this technique low molecular weight heparin and human growth hormone have been orally delivered successfully to several animal species. Future work has been proposed to study the interaction and binding of the specific drugs with synthesized oligopeptides.

  5. Analysis of unique beta transitions

    DEFF Research Database (Denmark)

    Eman, B.; Krmpotic, F.; Tadic, D;

    1967-01-01

    The Heidelberg group measurements [For abstr. see Phys. Rev. Nucl. Sci. Vol. 15 (1965)] of unique forbidden transitions have been analysed. It has been found that experimental shape factors can be reproduced only with the induced pseudoscalar form factor d ...-non-conserving tensor form factor b > 0. In the former case they contradict Daniel's results [See abstr. 1966A10720] for 0- rarr 0+ transitions, whereas in the latter they are in disagreement with other known analyses of mu-meson capture, allowed and forbidden transitions. The conclusion appears to be independent...

  6. Unique Features of Mobile Commerce

    Institute of Scientific and Technical Information of China (English)

    DING Xiaojun; IIJIMA Junichi; HO Sho

    2004-01-01

    While the market potentials and impacts of web-based e-commerce are still in the ascendant, the advances in wireless technologies and mobile networks have brought about a new business opportunity and research attention, what is termed mobile commerce. Commonly, mobile commerce is considered to be another new application of existing web-based e-commerce onto wireless networks, but as an independent business area, mobile commerce has its own advantages and challenges as opposed to traditional e-commerce applications. This paper focuses on exploring the unique features of mobile commerce as. Compared with traditional e-commerce. Also, there are still some limitations arisen in m-commerce in contrast to web-based e-commerce. Finally, current state of mobile commerce in Japan is presented in brief, with an introduction of several cases involving mobile commerce applications in today 's marketplace.

  7. Unique features of space reactors

    Science.gov (United States)

    Buden, David

    Space reactors are designed to meet a unique set of requirements; they must be sufficiently compact to be launched in a rocket to their operational location, operate for many years without maintenance and servicing, operate in extreme environments, and reject heat by radiation to space. To meet these restrictions, operating temperatures are much greater than in terrestrial power plants, and the reactors tend to have a fast neutron spectrum. Currently, a new generation of space reactor power plants is being developed. The major effort is in the SP-100 program, where the power plant is being designed for seven years of full power, and no maintenance operation at a reactor outlet operating temperature of 1350 K.

  8. The probabilities of unique events.

    Directory of Open Access Journals (Sweden)

    Sangeet S Khemlani

    Full Text Available Many theorists argue that the probabilities of unique events, even real possibilities such as President Obama's re-election, are meaningless. As a consequence, psychologists have seldom investigated them. We propose a new theory (implemented in a computer program in which such estimates depend on an intuitive non-numerical system capable only of simple procedures, and a deliberative system that maps intuitions into numbers. The theory predicts that estimates of the probabilities of conjunctions should often tend to split the difference between the probabilities of the two conjuncts. We report two experiments showing that individuals commit such violations of the probability calculus, and corroborating other predictions of the theory, e.g., individuals err in the same way even when they make non-numerical verbal estimates, such as that an event is highly improbable.

  9. The Evolution of Human Uniqueness.

    Science.gov (United States)

    Boyd, Robert

    2017-01-09

    The human species is an outlier in the natural world. Two million years ago our ancestors were a slightly odd apes. Now we occupy the largest ecological and geographical range of any species, have larger biomass, and process more energy. Usually, this transformation is explained in terms of cognitive ability-people are just smarter than all the rest. In this paper I argue that culture, our ability to learn from each other, and cooperation, our ability to make common cause with large groups of unrelated individuals are the real roots of human uniqueness, and sketch an evolutionary account of how these crucial abilities co-evolved with each other and with other features of our life histories.

  10. Existence and Uniqueness of Mild Solution for Fractional Integrodifferential Equations

    Directory of Open Access Journals (Sweden)

    N'Guérékata GastonM

    2010-01-01

    Full Text Available We study the existence and uniqueness of mild solution of a class of nonlinear fractional integrodifferential equations , , , in a Banach space , where . New results are obtained by fixed point theorem. An application of the abstract results is also given.

  11. On Uniqueness of Conjugacy of Continuous and Piecewise Monotone Functions

    Directory of Open Access Journals (Sweden)

    Ciepliński Krzysztof

    2009-01-01

    Full Text Available We investigate the existence and uniqueness of solutions of the functional equation , , where are closed intervals, and , are some continuous piecewise monotone functions. A fixed point principle plays a crucial role in the proof of our main result.

  12. CYP1B1: a unique gene with unique characteristics.

    Science.gov (United States)

    Faiq, Muneeb A; Dada, Rima; Sharma, Reetika; Saluja, Daman; Dada, Tanuj

    2014-01-01

    CYP1B1, a recently described dioxin inducible oxidoreductase, is a member of the cytochrome P450 superfamily involved in the metabolism of estradiol, retinol, benzo[a]pyrene, tamoxifen, melatonin, sterols etc. It plays important roles in numerous physiological processes and is expressed at mRNA level in many tissues and anatomical compartments. CYP1B1 has been implicated in scores of disorders. Analyses of the recent studies suggest that CYP1B1 can serve as a universal/ideal cancer marker and a candidate gene for predictive diagnosis. There is plethora of literature available about certain aspects of CYP1B1 that have not been interpreted, discussed and philosophized upon. The present analysis examines CYP1B1 as a peculiar gene with certain distinctive characteristics like the uniqueness in its chromosomal location, gene structure and organization, involvement in developmentally important disorders, tissue specific, not only expression, but splicing, potential as a universal cancer marker due to its involvement in key aspects of cellular metabolism, use in diagnosis and predictive diagnosis of various diseases and the importance and function of CYP1B1 mRNA in addition to the regular translation. Also CYP1B1 is very difficult to express in heterologous expression systems, thereby, halting its functional studies. Here we review and analyze these exceptional and startling characteristics of CYP1B1 with inputs from our own experiences in order to get a better insight into its molecular biology in health and disease. This may help to further understand the etiopathomechanistic aspects of CYP1B1 mediated diseases paving way for better research strategies and improved clinical management.

  13. Vantage Theory, Statistics and the Mental Worldview

    Science.gov (United States)

    Niewiara, Aleksandra

    2010-01-01

    The paper investigates Polish punk and hip hop (rap) song lyrics broken down into frequency lists. In an analysis inspired by MacLaury's view of categorization, the construals of punk and hip hop worldviews are shown to vary in the distance of the observer from the world, the width of the viewing frame, as well as the granularity and density of…

  14. A stochastic differential equation with a sticky point

    OpenAIRE

    Bass, Richard F.

    2012-01-01

    We consider a degenerate stochastic differential equation that has a sticky point in the Markov process sense. We prove that weak existence and weak uniqueness hold, but that pathwise uniqueness does not hold nor does a strong solution exist.

  15. UNIQUENESS ON ZERO PRESSURE GAS DYNAMICS

    Institute of Scientific and Technical Information of China (English)

    黄飞敏; 王振

    2001-01-01

    By introducing a new idea, the authors prove the uniqueness of weak solution of pressureless gases with the large initial data. In particular, uniqueness theorem is obtained in the same functional space as the existence theorem.

  16. On the uniqueness of supersymmetric attractors

    Directory of Open Access Journals (Sweden)

    Taniya Mandal

    2015-10-01

    Full Text Available In this paper we discuss the uniqueness of supersymmetric attractors in four-dimensional N=2 supergravity theories coupled to n vector multiplets. We prove that for a given charge configuration the supersymmetry preserving axion free attractors are unique. We generalise the analysis to axionic attractors and state the conditions for uniqueness explicitly. We consider the example of a two-parameter model and find all solutions to the supersymmetric attractor equations and discuss their uniqueness.

  17. 77 FR 69393 - Unique Device Identification System

    Science.gov (United States)

    2012-11-19

    ... HUMAN SERVICES Food and Drug Administration 21 CFR Part 801 RIN 0910-AG31 Unique Device Identification... unique device identification system as required by recent amendments to the Federal Food, Drug, and..., FDA published a proposed rule to establish a unique device identification system, as required by...

  18. On chromatic and flow polynomial unique graphs

    National Research Council Canada - National Science Library

    Duan, Yinghua; Wu, Haidong; Yu, Qinglin

    2008-01-01

    ... research on graphs uniquely determined by their chromatic polynomials and more recently on their Tutte polynomials, but rather spotty research on graphs uniquely determined by their flow polynomials or the combination of both chromatic and flow polynomials. This article is an initiation of investigation on graphs uniquely determin...

  19. Zero Point Energy of Renormalized Wilson Loops

    OpenAIRE

    Hidaka, Yoshimasa; Pisarski, Robert D.

    2009-01-01

    The quark antiquark potential, and its associated zero point energy, can be extracted from lattice measurements of the Wilson loop. We discuss a unique prescription to renormalize the Wilson loop, for which the perturbative contribution to the zero point energy vanishes identically. A zero point energy can arise nonperturbatively, which we illustrate by considering effective string models. The nonperturbative contribution to the zero point energy vanishes in the Nambu model, but is nonzero wh...

  20. Absolute Uniqueness of Phase Retrieval with Random Illumination

    CERN Document Server

    Fannjiang, Albert

    2011-01-01

    Random phase or amplitude illumination is proposed to remove at once all types of ambiguity, trivial or nontrivial, at once from phase retrieval. Almost sure irreducibility is proved for {\\em any} complex-valued object of arbitrary sparsity. While this irreducibility result can be viewed as a probabilistic version of the classical result by Bruck, Sodin and Hayes, it provides a new perspective and an effective method for achieving absolute uniqueness in phase retrieval for {\\em every} object, not just objects outside of a measure-zero set. In particular, almost sure absolute uniqueness is proved for complex-valued objects under a general two-point assumption. For objects of nonnegative real and imaginary parts, absolute uniqueness is proved to hold with probability exponentially close to unity as the object sparsity increases.

  1. Existence and uniqueness of solutions of nonlinear two-point boundary value problems for fourth order differential equations%四阶微分方程非线性两点边值问题解的存在唯一性

    Institute of Scientific and Technical Information of China (English)

    高永馨; 谢燕华

    2012-01-01

    利用上下解方法,讨论了四阶微分方程非线性两点边值问题y(4) =f(x,y,y′,y″,y(′″)),y(b) =b0,y′(b) =b1,y″(b) =h(y″(a)),g(y(a),y(b),y′(a),y′(b),y″(a),y″(b),y(′″)(a),y(′″)(b)) =0解的存在唯一性.%By using the method of upper - lower solution,the existence and uniquenss of solutions of nonlinear two -point boundary value problems for fourth order differential equation y(4) =f(x,y,y′,y″,y(′″)),y(b) =b0,y′(b) =b1,y″(b) =h(y″(a)),g(y(a),y(b),y′(a),y′(b),y″(a),y″(b),y(′″)(a),y(′″)(b)) =0 are investigated.

  2. Unique Spectroscopy and Imaging of Mars with the James Webb Space Telescope

    Science.gov (United States)

    Villanueva, Geronimo L.; Altieri, Francesca; Clancy, R. Todd; Encrenaz, Therese; Fouchet, Thierry; Hartogh, Paul; Lellouch, Emmanuel; Lopez-Valverde, Miguel A.; Mumma, Michael J.; Novak, Robert E.; hide

    2016-01-01

    In this paper, we summarize the main capabilities of the James Webb Space Telescope (JWST) for performing observations of Mars. The distinctive vantage point of JWST at the Sun-Earth Lagrange point (L2) will allow sampling the full observable disk, permitting the study of short-term phenomena, diurnal processes (across the east-west axis), and latitudinal processes between the hemispheres (including seasonal effects) with excellent spatial resolutions (0.''07 at 2 micron). Spectroscopic observations will be achievable in the 0.7-5 micron spectral region with NIRSpec at a maximum resolving power of 2700 and with 8000 in the 1-1.25 micron range. Imaging will be attainable with the Near-Infrared Camera at 4.3 micrometers and with two narrow filters near 2 micron, while the nightside will be accessible with several filters in 0.5 to 2 micron. Such a powerful suite of instruments will be a major asset for the exploration and characterization of Mars. Some science cases include the mapping of the water D/H ratio, investigations of the Martian mesosphere via the characterization of the non-local thermodynamic equilibrium CO2 emission at 4.3 micron, studies of chemical transport via observations of the O2 nightglow at 1.27 micron, high-cadence mapping of the variability dust and water-ice clouds, and sensitive searches for trace species and hydrated features on the Martian surface. In-flight characterization of the instruments may allow for additional science opportunities.

  3. On Uniqueness of Conjugacy of Continuous and Piecewise Monotone Functions

    Directory of Open Access Journals (Sweden)

    Krzysztof Ciepliński

    2009-01-01

    Full Text Available We investigate the existence and uniqueness of solutions φ:I→J of the functional equation φ(f(x=F(φ(x, x∈I, where I,J are closed intervals, and f:I→I, F:J→J are some continuous piecewise monotone functions. A fixed point principle plays a crucial role in the proof of our main result.

  4. Existence and Uniqueness of Mild Solution for Fractional Integrodifferential Equations

    Directory of Open Access Journals (Sweden)

    Fang Li

    2010-01-01

    Full Text Available We study the existence and uniqueness of mild solution of a class of nonlinear fractional integrodifferential equations dqu(t/dtq+Au(t=f(t,u(t+∫0ta(t−sg(s,u(sds, t∈[0,T], u(0=u0, in a Banach space X, where 0point theorem. An application of the abstract results is also given.

  5. [I, Robot: artificial intelligence, uniqueness and self-consciousness].

    Science.gov (United States)

    Agrest, Martín

    2008-01-01

    The cinematographic version of the science fiction classical book by Isaac Asimov (I, Robot) is used as a starting point, from the Artificial Intelligence perspective, in order to analyze what it is to have a self. Uniqueness or the exchange impossibility and the continuity of being one self are put forward to understand the movie's characters as well as the possibilities of feeling self conscious.

  6. On Integers, Primes and UniqueFactorization in Quadratic Fields

    OpenAIRE

    Hedenlund, Alice

    2013-01-01

    Abstract. This thesis will deal with quadratic elds. The prob- lem is to study such elds and their properties including, but not limited to, determining integers, nding primes and deciding which quadratic elds have unique factorization. The goal is to get famil- iar with these concepts and to provide a starting point for students with an interest in algebra to explore eld extensions and inte- gral closures in relation to elementary number theory. The reader will be assumed to have a basic kn...

  7. Unique Physician Identification Number (UPIN) Directory

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Unique Physician Identification Number (UPIN) Directory contains selected information on physicians, doctors of Osteopathy, limited licensed practitioners and...

  8. Duality Fixed Point and Zero Point Theorems and Applications

    Directory of Open Access Journals (Sweden)

    Qingqing Cheng

    2012-01-01

    Full Text Available The following main results have been given. (1 Let E be a p-uniformly convex Banach space and let T:E→E* be a (p-1-L-Lipschitz mapping with condition 0<(pL/c21/(p-1<1. Then T has a unique generalized duality fixed point x*∈E and (2 let E be a p-uniformly convex Banach space and let T:E→E* be a q-α-inverse strongly monotone mapping with conditions 1/p+1/q=1, 0<(q/(q-1c2q-1<α. Then T has a unique generalized duality fixed point x*∈E. (3 Let E be a 2-uniformly smooth and uniformly convex Banach space with uniformly convex constant c and uniformly smooth constant b and let T:E→E* be a L-lipschitz mapping with condition 0<2b/c2<1. Then T has a unique zero point x*. These main results can be used for solving the relative variational inequalities and optimal problems and operator equations.

  9. Some unique superconductive Properties of Cuprates

    Science.gov (United States)

    Müller, K. A.

    2013-04-01

    Copper oxides are the only materials that show transition temperatures, Tc, above the boiling point of liquid nitrogen, with a maximum Tmc of 162 K under pressure. Their structure is layered, with one to several CuO2 planes, and upon hole doping, their transition temperature follows a dome-shaped curve with a maximum at Tmc. In the underdoped regime, i.e., below Tmc, a pseudogap T* is found, with T* always being larger than Tc, a property unique to the copper oxides [1]. In the superconducting state, Cooper pairs (two holes with antiparallel spins) are formed that exhibit coherence lengths on the order of a lattice distance in the CuO2 plane and one order of magnitude less perpendicular to it. Their macroscopic wave function is parallel to the CuO2 plane near 100% d at their surface, but only 75% d and 25 % s in the bulk, and near 100% s perpendicular to the plane in YBCO. There are two gaps with the same Tc [2]. As function of doping, the oxygen isotope effect is novel and can be quantitatively accounted for by a two-band vibronic theory [3] near Tmc, and underdoped below it till Tc = 0 with by a formula valid for (bi)polarons [4]. These cuprates are intrinsically heterogeneous in a dynamic way. In terms of quasiparticles, Jahn-Teller bipolarons are present at low doping, and aggregate upon cooling [1], so that probably ramified clusters and/or stripes are formed, leading over to a more Fermi-liquid-type behavior at large carrier concentrations above Tmc.

  10. Existence and uniqueness of solutions for a Neumann boundary-value problem

    Directory of Open Access Journals (Sweden)

    Safia Benmansour

    2011-09-01

    Full Text Available In this article, we show the existence and uniqueness of positive solutions for perturbed Neumann boundary-value problems of second-order differential equations. We use a fixed point theorem for general $alpha$-concave operators.

  11. Existence and uniqueness of solutions for nonlinear hyperbolic fractional differential equation with integral boundary conditions

    OpenAIRE

    Brahim Tellab; Kamel Haouam

    2016-01-01

    In this paper, we investigate the existence and uniqueness of solutions for second order nonlinear fractional differential equation with integral boundary conditions. Our result is an application of the Banach contraction principle and the Krasnoselskii fixed point theorem.

  12. Existence and Uniqueness Theorem of Fractional Mixed Volterra-Fredholm Integrodifferential Equation with Integral Boundary Conditions

    OpenAIRE

    Shayma Adil Murad; Hussein Jebrail Zekri; Samir Hadid

    2011-01-01

    We study the existence and uniqueness of the solutions of mixed Volterra-Fredholm type integral equations with integral boundary condition in Banach space. Our analysis is based on an application of the Krasnosel'skii fixed-point theorem.

  13. EXISTENCE AND UNIQUENESS OF PERIODIC SOLUTIONS TO A HIGHER DIMENSIONAL PERIODIC SYSTEM WITH DELAY

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    In this paper, using fixed point theorem, we discuss a higher dimensional nonautonomous periodic system with delay and give some suffcient criteria for the existence and uniqueness of periodic solution. Our results extend and improve some results in previous researches.

  14. ON THE EXISTENCE AND UNIQUENESS OFSOLUTIONS FOR 2nTH-ORDER BOUNDARY VALUE PROBLEMS

    Institute of Scientific and Technical Information of China (English)

    PeiMinghe; SungKagChang

    2005-01-01

    In this paper, by using the Leray-Schauder continuation theorem, we establish the existence and uniqueness theorems of solutions of two-point boundary value problems for 2nth-order nonlinear differential equations with nonlinear growth.

  15. Uniqueness of time-independent electromagnetic fields

    DEFF Research Database (Denmark)

    Karlsson, Per W.

    1974-01-01

    As a comment on a recent paper by Steele, a more general uniqueness theorem for time-independent fields is mentioned. ©1974 American Institute of Physics......As a comment on a recent paper by Steele, a more general uniqueness theorem for time-independent fields is mentioned. ©1974 American Institute of Physics...

  16. Some Graphs Containing Unique Hamiltonian Cycles

    Science.gov (United States)

    Lynch, Mark A. M.

    2002-01-01

    In this paper, two classes of graphs of arbitrary order are described which contain unique Hamiltonian cycles. All the graphs have mean vertex degree greater than one quarter the order of the graph. The Hamiltonian cycles are detailed, their uniqueness proved and simple rules for the construction of the adjacency matrix of the graphs are given.…

  17. Constructing Dense Graphs with Unique Hamiltonian Cycles

    Science.gov (United States)

    Lynch, Mark A. M.

    2012-01-01

    It is not difficult to construct dense graphs containing Hamiltonian cycles, but it is difficult to generate dense graphs that are guaranteed to contain a unique Hamiltonian cycle. This article presents an algorithm for generating arbitrarily large simple graphs containing "unique" Hamiltonian cycles. These graphs can be turned into dense graphs…

  18. 78 FR 58785 - Unique Device Identification System

    Science.gov (United States)

    2013-09-24

    ... 16, 801, 803, et al. Unique Device Identification System; Final Rule #0;#0;Federal Register / Vol. 78... 0910-AG31 Unique Device Identification System AGENCY: Food and Drug Administration, HHS. ACTION: Final... will substantially reduce existing obstacles to the adequate identification of medical devices used in...

  19. A note on uniquely (nil clean ring

    Directory of Open Access Journals (Sweden)

    Shervin Sahebi

    2014-05-01

    Full Text Available A ring $R$ is uniquely (nil clean in case for any $a\\in R$‎ ‎there exists a uniquely idempotent $e\\in R$ such that $a-e$ is‎ ‎invertible (nilpotent‎. ‎Let‎ ‎$C=\\small\\left(‎‎\\begin{array}{cc}‎‎A & V \\\\‎ ‎W & B‎‎\\end{array}‎‎\\right$‎ ‎be the Morita Context ring‎. ‎We determine conditions under which the rings $A‎, ‎B$‎ ‎are uniquely (nil clean‎. ‎Moreover we show that the center of a uniquely (nil‎‎clean ring is uniquely (nil clean.

  20. Existence and Uniqueness of Periodic Solutions for Second Order Differential Equations

    Directory of Open Access Journals (Sweden)

    Yuanhong Wei

    2014-01-01

    Full Text Available We study some second order ordinary differential equations. We establish the existence and uniqueness in some appropriate function space. By using Schauder’s fixed-point theorem, new results on the existence and uniqueness of periodic solutions are obtained.

  1. THE EXISTENCE, UNIQUENESS AND STABILITY OF ALMOST PERIODIC SOLUTION FOR A CLASS OF NONLINEAR SYSTEM

    Institute of Scientific and Technical Information of China (English)

    方聪娜; 王全义

    2004-01-01

    In this paper, we study the problems on the existence, uniqueness and stability of almost periodic solution for a class of nonlinear system. Using fixed point theorem and Lyapunov functional, the sufficient conditions are given which guarantee the existence, uniqueness and stability of almost periodic solution for the system.

  2. High Blood Pressure: Unique to Older Adults

    Science.gov (United States)

    ... our e-newsletter! Aging & Health A to Z High Blood Pressure Hypertension Unique to Older Adults This section provides ... Pressure Targets are Different for Very Old Adults High blood pressure (also called hypertension) increases your chance of having ...

  3. Arachnoiditis ossificans and syringomyelia: A unique presentation

    Directory of Open Access Journals (Sweden)

    Charles F Opalak

    2015-01-01

    Conclusion: This case demonstrates a unique presentation of AO and highlights the need for CT imaging when a noncommunicating syringx is identified. In addition, surgical decompression can achieve good results when AO is associated with concurrent compressive lesions.

  4. Falls Prevention: Unique to Older Adults

    Science.gov (United States)

    ... our e-newsletter! Aging & Health A to Z Falls Prevention Unique to Older Adults This section provides ... and Muscle Strengthening Exercises As part of your fall prevention program, you should follow an exercise program ...

  5. Medians and means in Riemannian geometry: existence, uniqueness and computation

    CERN Document Server

    Arnaudon, Marc; Yang, Le

    2011-01-01

    This paper is a short summary of our recent work on the medians and means of probability measures in Riemannian manifolds. Firstly, the existence and uniqueness results of local medians are given. In order to compute medians in practical cases, we propose a subgradient algorithm and prove its convergence. After that, Fr\\'echet medians are considered. We prove their statistical consistency and give some quantitative estimations of their robustness with the aid of upper curvature bounds. We also show that, in compact Riemannian manifolds, the Fr\\'echet medians of generic data points are always unique. Stochastic and deterministic algorithms are proposed for computing Riemannian p-means. The rate of convergence and error estimates of these algorithms are also obtained. Finally, we apply the medians and the Riemannian geometry of Toeplitz covariance matrices to radar target detection.

  6. Right temporopolar activation associated with unique perception.

    Science.gov (United States)

    Asari, Tomoki; Konishi, Seiki; Jimura, Koji; Chikazoe, Junichi; Nakamura, Noriko; Miyashita, Yasushi

    2008-05-15

    Unique mode of perception, or the ability to see things differently from others, is one of the psychological resources required for creative mental activities. Behavioral studies using ambiguous visual stimuli have successfully induced diverse responses from subjects, and the unique responses defined in this paradigm were observed in higher frequency in the artistic population as compared to the nonartistic population. However, the neural substrates that underlie such unique perception have yet to be investigated. In the present study, ten ambiguous figures were used as stimuli. The subjects were instructed to say what the figures looked like during functional MRI scanning. The responses were classified as "frequent", "infrequent" or "unique" responses based on the appearance frequency of the same response in an independent age- and gender-matched control group. An event-related analysis contrasting unique vs. frequent responses revealed the greatest activation in the right temporal pole, which survived a whole brain multiple comparison. An alternative parametric modulation analysis was also performed to show that potentially confounding perceptual effects deriving from differences in visual stimuli make no significant contribution to this temporopolar activation. Previous neuroimaging and neuropsychological studies have shown the involvement of the temporal pole in perception-emotion linkage. Thus, our results suggest that unique perception is produced by the integration of perceptual and emotional processes, and this integration might underlie essential parts of creative mental activities.

  7. Unique construction methods used to expand Australia's Hay Point Port

    Energy Technology Data Exchange (ETDEWEB)

    McRobert, J.D.

    1977-04-01

    The expanded port was to accommodate a throughput of approximately 20,000,000 tons per year. This expansion required an extra rail loop and two-car tippler, two new rail-mounted stacker reclaimer units installed on two more double stockpile areas--each served by one stacker reclaimer, one on-shore surge bin of 1,000 tons capacity, a new approach conveyor over the existing conveyor trestle, and a new berth and shiploader. The new rail unloading system was identical to the original system of a twin car McDowell Wellman design. The new Dravo stacker reclaimers were each designed for an average output of 3,000,000 tons per hour. The new stockpile yard conveyors were interconnected with the old system at both ends of the approach trestle for maximum flexibility of loading. The on-land stockpile storage was increased to more than 3,000 tons. The new berth shiploader was designed to load ships at the rate of 6,000 tons per hour. Feed from the surge bins minimized deviation from the mean shiploading rate. Construction methods are described.

  8. Smartphone spectroscopy: three unique modalities for point-of-care testing

    Science.gov (United States)

    Long, Kenneth D.; Yu, Hojeong; Cunningham, Brian T.

    2015-06-01

    Here we demonstrate three principle modalities for a smartphone-based spectrometer: absorption, fluorescence, and photonic crystal (PC)-based label-free detection. When combined with some simple optical components, the rear-facing CMOS camera in a mobile device can provide spectrometric data that rivals that of laboratory instruments, but at a fraction of the cost. The use of a smartphone-based platform poses significant advantages based upon the rise of smartphone apps, which allow for user-interface and data-processing algorithms to be packaged and distributed within environments that are externally maintained with potential for integration with services such as cloud storage, GIS-tagging, and remote expert analysis. We demonstrate the absorption modality of our device by performing an enzyme-linked immunosorbent assay (ELISA) on both a cancer biomarker and a peanut allergen, demonstrating clinically relevant limits of detection (LOD). Second, we demonstrate the success of a molecular beacon (MB)-based assay on the smartphone platform, achieving an LOD of 1.3 pM for a specific RNA sequence, less than that of a commercial benchtop instrument. Finally, we use a PC biosensor to perform label-free detection of a representative biological interaction: Protein A and human immunoglobulin G (IgG) in the nanomolar regime. Our work represents the first demonstration of smartphone-based spectroscopy for biological assays, and the first mobile-device-enabled detection instrument that serves to measure three distinct sensing modalities (label-free biosensing, absorption spectroscopy, and fluorescence spectroscopy). The smartphone platform has the potential to expand the use of spectrometric analysis to environments assay from the laboratory, which may include rural or remote locations, low-resource settings, and consumer markets.

  9. EXISTENCE AND UNIQUENESS RESULTS FOR NONLINEAR THIRD-ORDER BOUNDARY VALUE PROBLEM

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    In this paper,we investigate a nonlinear third-order three-point boundary value problem. By several well-known fixed point theorems,the existence of positive solutions is discussed. Besides,the uniqueness results are obtained by imposing growth restrictions on f.

  10. [Conception of Ashi points].

    Science.gov (United States)

    Xu, Rong-dong; Li, Heng

    2005-04-01

    In the light of obscure conception of Ashi points in the circle of acupuncture and moxibustion at present, this article tries to clarify the origin and definition of Ashi points by textual research of literatures. It is put forward that Ashi points are not the same with "tender spot" and "Buding point, Tianying point", but are some special responding points, including regular points and extra points, when the organism is ill. When these points are pressed the organism will be comfortable or painful. And the definition, location and clinical location method of Ashi points are proposed.

  11. Acute Onset Collagenous Colitis with Unique Endoscopic Findings

    Science.gov (United States)

    Kuhroha, Masatake; Kinouchi, Yoshitaka; Shimosegawa, Tooru

    2014-01-01

    We experienced a rare case of 72-year-old woman with acute onset collagenous colitis (CC) induced by lansoprazole. The patient developed acute abdominal pain, watery diarrhea, and melena that are quite rare in usual CC. We could find the characteristic colonoscopic findings such as active long liner ulcers in the patient. We also observed the healing courses of these unique findings. Our case indicates two important points of view. (1) CC sometimes develops with acute onset symptoms which resemble those of ischemic colitis. (2) Colonoscopy would be useful and necessary to distinguish acute onset CC and ischemic colitis. PMID:25610672

  12. Unique interaction pattern for a functionally biased ghrelin receptor agonist

    DEFF Research Database (Denmark)

    Sivertsen, Bjørn Behrens; Lang, Manja; Frimurer, Thomas M.

    2011-01-01

    /13) pathway. The recognition pattern of wFw-Isn-NH(2) with the ghrelin receptor also differed significantly from that of all previously characterized unbiased agonists. Most importantly, wFw-Isn-NH(2) was not dependent on GluIII:09 (Glu3.33), which otherwise is an obligatory TM III anchor point residue...... orientation as compared with, for example, the wFw peptide agonists. It is concluded that the novel peptide-mimetic ligand wFw-Isn-NH(2) is a biased ghrelin receptor agonist and that the selective signaling pattern presumably is due to its unique receptor recognition pattern lacking interaction with key...

  13. Acute Onset Collagenous Colitis with Unique Endoscopic Findings

    Directory of Open Access Journals (Sweden)

    Rintaro Moroi

    2014-01-01

    Full Text Available We experienced a rare case of 72-year-old woman with acute onset collagenous colitis (CC induced by lansoprazole. The patient developed acute abdominal pain, watery diarrhea, and melena that are quite rare in usual CC. We could find the characteristic colonoscopic findings such as active long liner ulcers in the patient. We also observed the healing courses of these unique findings. Our case indicates two important points of view. (1 CC sometimes develops with acute onset symptoms which resemble those of ischemic colitis. (2 Colonoscopy would be useful and necessary to distinguish acute onset CC and ischemic colitis.

  14. Amygdalar enlargement associated with unique perception.

    Science.gov (United States)

    Asari, Tomoki; Konishi, Seiki; Jimura, Koji; Chikazoe, Junichi; Nakamura, Noriko; Miyashita, Yasushi

    2010-01-01

    Interference by amygdalar activity in perceptual processes has been reported in many previous studies. Consistent with these reports, previous clinical studies have shown amygdalar volume change in multiple types of psychotic disease presenting with unusual perception. However, the relationship between variation in amygdalar volume in the normal population and the tendency toward unusual or unique perception has never been investigated. To address this issue, we defined an index to represent the tendency toward unique perception using ambiguous stimuli: subjects were instructed to state what the figures looked like to them, and "unique responses" were defined depending on the appearance frequency of the same responses in an age- and gender-matched control group. The index was defined as the ratio of unique responses to total responses per subject. We obtained structural brain images and values of the index from sixty-eight normal subjects. Voxel-based morphometry analyses revealed a positive correlation between amygdalar volume and the index. Since previous reports have indicated that unique responses were observed at higher frequency in the artistic population than in the nonartistic normal population, this positive correlation suggests that amygdalar enlargement in the normal population might be related to creative mental activity.

  15. Very Smooth Points of Spaces of Operators

    Indian Academy of Sciences (India)

    T S S R K Rao

    2003-02-01

    In this paper we study very smooth points of Banach spaces with special emphasis on spaces of operators. We show that when the space of compact operators is an -ideal in the space of bounded operators, a very smooth operator attains its norm at a unique vector (up to a constant multiple) and ( ) is a very smooth point of the range space. We show that if for every equivalent norm on a Banach space, the dual unit ball has a very smooth point then the space has the Radon–Nikodým property. We give an example of a smooth Banach space without any very smooth points.

  16. PowerPoint 2007 for Dummies

    CERN Document Server

    Lowe, Doug

    2007-01-01

    New and inexperienced PowerPoint users will discover how to use the latest enhancements to PowerPoint 2007 quickly and efficiently so that they can produce unique and informative presentations PowerPoint continues to be the world's most popular presentation software This updated For Dummies guide shows users different ways to create powerful and effective slideshow presentations that incorporate data from other applications in the form of charts, clip art, sound, and video Shares the key features of PowerPoint 2007 including creating and editing slides, working with hyperlinks and action butt

  17. Proposition of Unique Pumping System with Counter-Rotating Mechanism

    Directory of Open Access Journals (Sweden)

    Toshiaki Kanemoto

    2004-01-01

    Full Text Available Turbo-pumps have weak points, such as when the pumping operation becomes unstable in the rising portion of the head characteristics and/or the cavitation occurs under the intolerably low suction head. To overcome both weak points simultaneously, this article proposes a unique pumping system with counter-rotating mechanism, which consists of two stage impellers and a peculiar motor with double rotors. The front and the rear impellers are driven by the inner and the outer rotors of the motor, respectively, keeping the relative rotational speed constant and counter-balancing the rotational torque. Such driving conditions not only smartly improve the unstable performance at lower discharge, but also suppress the cavitation at higher discharge, in the optimum cooperation with the impeller works and the rotor outputs.

  18. Existence and Uniqueness in Shape from Shading

    Institute of Scientific and Technical Information of China (English)

    邓雁萍; 李价谷

    1997-01-01

    For the image of a smooth surface object fully contained within the field of view and illuminated in and arbitrary direction,this paper discusses the existence and uniqueness o the conditions for solving a shape-from-shading problem under the conditions that the Fourier series expansion of the image intensity contains only zero and first order terms in a polar coordinate system.Three theorems are established,one for the existence and two for the uniqueness of z-axis symmetric shape from shading.

  19. Uniqueness vs non-uniqueness in complete connections with modified majority rules

    OpenAIRE

    Dias, J. C. A.; Friedli, S.

    2013-01-01

    We take a closer look at a class of chains with complete connections introduced by Berger, Hoffman and Sidoravicius. Besides giving a sharper description of the uniqueness and non-uniqueness regimes, we show that if the pure majority rule used to fix the dependence on the past is replaced with a function that is Lipschitz at the origin, then uniqueness always holds, even with arbitrarily slow decaying variation.

  20. In a unique position or squeezed out?

    DEFF Research Database (Denmark)

    Hølge-Hazelton, Bibi; Christensen, Inge

    2009-01-01

    language, they experience that their patients disappear, they are seldom involved, and they lack knowledge. CONCLUSIONS: GPs have few experiences with YA cancer patients, but they have a potentially unique role in general primary cancer care if they develop their vocational vocabulary, relate more...

  1. LCA – Unique and Controversial Case Studies

    Science.gov (United States)

    This session will focus on case studies and applications that have a unique or controversial aspect. Some of the most recent topics that seem to have significant interest include: LCA-based product declarations, LCA-based standards, LCA-based labels, alternative energy, agricul...

  2. Marketing the Uniqueness of Small Towns. Revised.

    Science.gov (United States)

    Dunn, Douglas; Hogg, David H.

    The key to marketing a town is determining and promoting the town's "differential advantage" or uniqueness that would make people want to visit or live there. Exercises to help communities gain important insights into the town's competitive edge include a brainstorming session with knowledgeable community members, a visitor questionnaire, a…

  3. The Uniqueness of Speech among Motor Systems

    Science.gov (United States)

    Kent, Ray

    2004-01-01

    This paper considers evidence that the speech muscles are unique in their genetic, developmental, functional and phenotypical properties. The literature was reviewed using PubMed, ScienceDirect, ComDisDome and other literature-retrieval systems to identify studies reporting on the craniofacial and laryngeal muscles. Particular emphasis was given…

  4. Multicultural Poetry: Voices Unique, yet Universal.

    Science.gov (United States)

    Webre, Elizabeth C.

    As teachers gravitate more and more to the use of literature and strive to include a range of cultural experiences in their classrooms, the use of poetry from various cultural groups should be considered. Poetry is a very real means of having children see themselves and others as being both unique and yet the same. In considering poetry across…

  5. Tulane Student Designs Unique Learning Tool

    Science.gov (United States)

    Modern Schools, 1977

    1977-01-01

    A Louisiana architect has created plans for a unique supplementary learning environment consisting of five circular buildings featuring a planetarium, an indoor display of small animals in their native habitat, an indoor pond, a library, a media center, and an auditorium. (Author/MLF)

  6. Art Libraries: Creating Access to Unique Collections

    Science.gov (United States)

    Falls, Sarah E.

    2009-01-01

    Art libraries face similar issues to other types of libraries during the digital transition but have unique twists driven by the needs of their collections. Art library information seekers may possess a sense of what an art library is: a library, set apart, to support the study of art and art history. For art libraries, it is the collection,…

  7. UNIQUENESS OF DIFFERENCE POLYNOMIALS OF MEROMORPHIC FUNCTIONS

    Institute of Scientific and Technical Information of China (English)

    刘永; 祁晓光

    2014-01-01

    In this article, we investigate the uniqueness problems of difference polynomials of meromorphic functions and obtain some results which can be viewed as discrete analogues of the results given by Shibazaki. Some examples are given to show the results in this article are best possible.

  8. Unique characteristics of Geneva apple rootstocks

    Science.gov (United States)

    The Geneva® apple rootstock breeding program has been operating since the early 1970’s. It is a unique program in that it had access to important germplasm resources that later became the USDA ARS apple collection in Geneva, NY. This genetic diversity allowed for the achievement of one of the proj...

  9. Unraveling the evolution of uniquely human cognition.

    Science.gov (United States)

    MacLean, Evan L

    2016-06-07

    A satisfactory account of human cognitive evolution will explain not only the psychological mechanisms that make our species unique, but also how, when, and why these traits evolved. To date, researchers have made substantial progress toward defining uniquely human aspects of cognition, but considerably less effort has been devoted to questions about the evolutionary processes through which these traits have arisen. In this article, I aim to link these complementary aims by synthesizing recent advances in our understanding of what makes human cognition unique, with theory and data regarding the processes of cognitive evolution. I review evidence that uniquely human cognition depends on synergism between both representational and motivational factors and is unlikely to be accounted for by changes to any singular cognitive system. I argue that, whereas no nonhuman animal possesses the full constellation of traits that define the human mind, homologies and analogies of critical aspects of human psychology can be found in diverse nonhuman taxa. I suggest that phylogenetic approaches to the study of animal cognition-which can address questions about the selective pressures and proximate mechanisms driving cognitive change-have the potential to yield important insights regarding the processes through which the human cognitive phenotype evolved.

  10. Uniqueness and Zeros of -Shift Difference Polynomials

    Indian Academy of Sciences (India)

    Kai Liu; Xin-Ling Liu; Ting-Bin Cao

    2011-08-01

    In this paper, we consider the zero distributions of -shift difference polynomials of meromorphic functions with zero order, and obtain two theorems that extend the classical Hayman results on the zeros of differential polynomials to -shift difference polynomials. We also investigate the uniqueness problem of -shift difference polynomials that share a common value.

  11. Unique Features and Spacecraft Applications of Dynamic Isotope Power Systems

    Energy Technology Data Exchange (ETDEWEB)

    Raab, B.

    1982-01-01

    The dynamic isotope power system represents the most recent attempt to develop a heat-engine generator for space electric power. A major objective in this most recent effort was to increase the power and to reduce the cost of nuclear space power systems to the point where the unique features of this power source could be brought to bear for Earth-orbit missions which could benefit therefrom. This objective was largely achieved; both weight and cost of the dynamic isotope systems are comparable to solar power systems. The dynamic isotope power system, designed for spacecraft requiring prime power in the 500-2000 W range, has been successfully built and ground tested. A number of studies, summarized herein, have demonstrated the advantages of using such a power system instead of the conventional solar system for a variety of Earth-orbit missions. These advantages stem from the unique nature of the dynamic isotope system, different in kind from solar power systems. As a result, in many cases, the spacecraft design can be significantly simplified and more closely harmonized with mission requirements. This overall advantage can be crucial in missions which have stringent pointing, stability, viewing, and/or positioning requirements.

  12. Unique device identification system. Final rule.

    Science.gov (United States)

    2013-09-24

    The Food and Drug Administration (FDA) is issuing a final rule to establish a system to adequately identify devices through distribution and use. This rule requires the label of medical devices to include a unique device identifier (UDI), except where the rule provides for an exception or alternative placement. The labeler must submit product information concerning devices to FDA's Global Unique Device Identification Database (GUDID), unless subject to an exception or alternative. The system established by this rule requires the label and device package of each medical device to include a UDI and requires that each UDI be provided in a plain-text version and in a form that uses automatic identification and data capture (AIDC) technology. The UDI will be required to be directly marked on the device itself if the device is intended to be used more than once and intended to be reprocessed before each use.

  13. Unique Astrophysics in the Lyman Ultraviolet

    CERN Document Server

    Tumlinson, Jason; Kriss, Gerard; France, Kevin; McCandliss, Stephan; Sembach, Ken; Fox, Andrew; Tripp, Todd; Jenkins, Edward; Beasley, Matthew; Danforth, Charles; Shull, Michael; Stocke, John; Lehner, Nicolas; Howk, Christopher; Froning, Cynthia; Green, James; Oliveira, Cristina; Fullerton, Alex; Blair, Bill; Kruk, Jeff; Sonneborn, George; Penton, Steven; Wakker, Bart; Prochaska, Xavier; Vallerga, John; Scowen, Paul

    2012-01-01

    There is unique and groundbreaking science to be done with a new generation of UV spectrographs that cover wavelengths in the "Lyman Ultraviolet" (LUV; 912 - 1216 Ang). There is no astrophysical basis for truncating spectroscopic wavelength coverage anywhere between the atmospheric cutoff (3100 Ang) and the Lyman limit (912 Ang); the usual reasons this happens are all technical. The unique science available in the LUV includes critical problems in astrophysics ranging from the habitability of exoplanets to the reionization of the IGM. Crucially, the local Universe (z <= 0.1) is entirely closed to many key physical diagnostics without access to the LUV. These compelling scientific problems require overcoming these technical barriers so that future UV spectrographs can extend coverage to the Lyman limit at 912 Ang.

  14. Multiple floating metatarsals: a unique injury

    Directory of Open Access Journals (Sweden)

    Trikha Vivek

    2013-04-01

    Full Text Available 【Abstract】Concomitant dislocation of the tar-sometatarsal and metatarsophalangeal joints of foot is an extremely rare injury. Such injuries presenting in a single or adjacent dual rays have been described in few cases previously. We describe such an injury in adjacent three metatarsals of a polytrauma patient. These injuries are likely to be missed in the initial assessment of a polytrauma patient. These patients are at risk of an overlooked diagnosis but the consequences of missing this type of injury may be Vivek Trikha*, Tarun Goyal, Amit K Agarwal quite severe. This case is presented in view of its unique-ness along with possible mechanism of injury, the sequence of reduction and follow-up. Knowledge of such injury and its proper management may be useful to the trauma surgeons. Key words: Metatarsal bones; Metatarsophalangeal joint; Wounds and injuries

  15. Theory of uniqueness of Indian Caste System

    Directory of Open Access Journals (Sweden)

    Ashwin Kumar

    2006-08-01

    Full Text Available Classical studies on pre-modern Indian social structure have suggested apparent differences between the Indian caste system and social stratification as one can discern in other parts of the world. However, one needs to question such dogmatic assertions that such vast differences really existed. An endeavor is made in this research paper to reflect on the nature of caste hierarchy in pre-modern India. The caste system forms the significant basis of pre-modern Indian social structure. Early writers conceived the caste system of pre-modern India as something unique to India. An attempt is made to question this application of theory of uniqueness in the case of India.

  16. Theory of uniqueness of Indian Caste System

    Directory of Open Access Journals (Sweden)

    Ashwin Kumar

    2005-11-01

    Full Text Available Classical studies on pre-modern Indian social structure have suggested apparent differences between the Indian caste system and social stratification as one can discern in other parts of the world. However, one needs to question such dogmatic assertions that such vast differences really existed. An endeavor is made in this research paper to reflect on the nature of caste hierarchy in pre-modern India. The caste system forms the significant basis of pre-modern Indian social structure. Early writers conceived the caste system of pre-modern India as something unique to India. An attempt is made to question this application of theory of uniqueness in the case of India.

  17. Uniqueness of entire functions concerning weighted sharing

    Institute of Scientific and Technical Information of China (English)

    SUN Yao-qiang; MA Chao-wei

    2007-01-01

    The uniqueness problem of entire functions concerning weighted sharing was discussed, and the following theorem was proved. Let f and g be two non-constant entire functions, m, n and k three positive integers, and n>2k+4. If Em(1,(f n)(k))= Em(1,(gn)(k)), then either f (z)=c1ecz and g(z)= c2e-cz, or f =tg, where c, c1 and c2 are three constants satisfying (-1)k(c1c2)n(nc)2k=1, and t is a constant satisfying t n=1. The theorem generalizes the result of Fang [Fang ML, Uniqueness and value sharing of entire functions, Computer & Mathematics with Applications, 2002, 44: 823-831].

  18. Metalworking Techniques Unlock a Unique Alloy

    Science.gov (United States)

    2015-01-01

    Approached by West Hartford, Connecticut-based Abbot Ball Company, Glenn Research Center agreed to test an intriguing alloy called Nitinol 60 that had been largely unused for a half century. Using powdered metallurgy, the partners developed a method for manufacturing and working with the material, which Abbott Ball has now commercialized. Nitinol 60 provides a unique combination of qualities that make it an excellent material for ball bearings, among other applications.

  19. Mushrooms—Biologically Distinct and Nutritionally Unique

    OpenAIRE

    Feeney, Mary Jo; Miller, Amy Myrdal; Roupas, Peter

    2014-01-01

    Mushrooms are fungi, biologically distinct from plant- and animal-derived foods (fruits, vegetables, grains, dairy, protein [meat, fish, poultry, legumes, nuts, and seeds]) that comprise the US Department of Agriculture food patterns operationalized by consumer-focused MyPlate messages. Although mushrooms provide nutrients found in these food groups, they also have a unique nutrient profile. Classified into food grouping systems by their use as a vegetable, mushrooms’ increasing use in main e...

  20. A unique case of systemic lupus erythematosus.

    Science.gov (United States)

    Rafiq, Muhammad Khizar

    2009-01-01

    An 18-year-old Asian girl was referred to the nephrology unit with rapidly progressive renal failure. At the age of 15 she was diagnosed as having systemic lupus erythematosus but had defaulted treatment. Her renal functions improved with cyclophosphamide pulse treatment but she continued to have central nervous system vasculitis, gastrointestinal vasculitis and opportunistic infections making her a unique and challenging case of systemic lupus erythematosus.

  1. Uniqueness from locality and BCFW shifts

    OpenAIRE

    Rodina, Laurentiu

    2016-01-01

    We introduce a BCFW shift which can be used to recursively build the full Yang-Mills amplitude as a function of polarization vectors. Furthermore, in line with the recent results of arXiv:1612.02797, we conjecture that the Yang-Mills scattering amplitude is uniquely fixed by locality and demanding the usual asymptotic behavior under a sufficient number of shifts. Unitarity therefore emerges from locality and constructability. We prove this statement at the leading order in the soft expansion.

  2. Stationary Black Holes: Uniqueness and Beyond

    Directory of Open Access Journals (Sweden)

    Piotr T. Chruściel

    2012-05-01

    Full Text Available The spectrum of known black-hole solutions to the stationary Einstein equations has been steadily increasing, sometimes in unexpected ways. In particular, it has turned out that not all black-hole-equilibrium configurations are characterized by their mass, angular momentum and global charges. Moreover, the high degree of symmetry displayed by vacuum and electro vacuum black-hole spacetimes ceases to exist in self-gravitating non-linear field theories. This text aims to review some developments in the subject and to discuss them in light of the uniqueness theorem for the Einstein-Maxwell system.

  3. Stationary Black Holes: Uniqueness and Beyond

    Directory of Open Access Journals (Sweden)

    Heusler Markus

    1998-01-01

    Full Text Available The spectrum of known black hole solutions to the stationary Einstein equations has increased in an unexpected way during the last decade. In particular, it has turned out that not all black hole equilibrium configurations are characterized by their mass, angular momentum and global charges. Moreover, the high degree of symmetry displayed by vacuum and electro-vacuum black hole space-times ceases to exist in self-gravitating non-linear field theories. This text aims to review some of the recent developments and to discuss them in the light of the uniqueness theorem for the Einstein-Maxwell system.

  4. Unique double recurrence of cerebral arteriovenous malformation.

    Science.gov (United States)

    Nagm, Alhusain; Horiuchi, Tetsuyoshi; Ichinose, Shunsuke; Hongo, Kazuhiro

    2015-09-01

    Surgically treated patients with arteriovenous malformations (AVMs) are considered cured when the postoperative angiogram proves complete resection. However, despite no residual nidus or early draining vein on postoperative angiogram, rare instances of AVM recurrence have been reported in adults. In this paper, the authors present a case of a 24-year-old woman with asymptomatic double recurrence of her cerebral AVM after angiographically proven complete resection. To the authors' knowledge, this patient represents the first case with double de novo asymptomatic recurrence of Spetzler-Martin grade I AVM. Also, she represents the first case with unique AVM criteria in each recurrence.

  5. A unique variation of superficial palmar arch

    Directory of Open Access Journals (Sweden)

    Jiji PJ

    2009-09-01

    Full Text Available We present a unique variation in the arterial pattern of superficial palmar arch in which it was completed by one of the large terminal branches of radial artery. The origin of the arteria radialis indicis was also peculiar that it was arising from the communicating branch of the radial artery and further reinforced by the first dorsal metacarpal artery that joined it after reaching the volar aspect. Pertinent anatomical knowledge regarding the variations of the palmar arch is significant for the purposes of microvascular repairs and re-implantations.

  6. Type III factors with unique Cartan decomposition

    CERN Document Server

    Houdayer, Cyril

    2012-01-01

    We prove that for any free ergodic nonsingular nonamenable action \\Gamma\\ \\actson (X,\\mu) of all \\Gamma\\ in a large class of groups including all hyperbolic groups, the associated group measure space factor $L^\\infty(X) \\rtimes \\Gamma$ has L^\\infty(X) as its unique Cartan subalgebra, up to unitary conjugacy. This generalizes the probability measure preserving case that was established in [PV12]. We also prove primeness and indecomposability results for such crossed products, for the corresponding orbit equivalence relations and for arbitrary amalgamated free products $M_1 *_B M_2$ over a subalgebra B of type I.

  7. Uniqueness of Centauro-type events

    Energy Technology Data Exchange (ETDEWEB)

    Augusto, C.R.A.; Barroso, S.L.C.; Beggio, P.C.; Carvalho, A.O. de; Menon, M.J.; Navia, C.E.; Oliveira, R. de; Shibuya, E.H

    2003-07-01

    Analysis to discriminate Centauro events from normal events is made without previous identification of secondary emitted particles. For this purpose their energy and derived quantities like distance from the center of momenta it were mainly used. As a result we found in a sample of (280+87) experimental events only 3 were compatible with 5 Centauro events, but none of them dad a high content of hadrons, characteristic of Centauro events. With this result we are confident about the uniqueness of Centauro events, especially for two events that have vertex directly determined. Comparing with some interaction models features we depict a possible scenario to explain Centauro events.

  8. Uniqueness of the Trautman-Bondi mass

    CERN Document Server

    Chrúsciel, P T; MacCallum, M A H; Chru\\'sciel, Piotr T.; Jezierski, Jacek; Callum, Malcolm A.H. Mac

    1998-01-01

    It is shown that the only functionals, within a natural class, which are monotonic in time for all solutions of the vacuum Einstein equations admitting a smooth ``piece'' of conformal null infinity Scri, are those depending on the metric only through a specific combination of the Bondi `mass aspect' and other next--to--leading order terms in the metric. Under the extra condition of passive BMS invariance, the unique such functional (up to a multiplicative factor) is the Trautman--Bondi energy. It is also shown that this energy remains well-defined for a wide class of `polyhomogeneous' metrics.

  9. Unique supply function equilibrium with capacity constraints

    Energy Technology Data Exchange (ETDEWEB)

    Holmberg, Paer [Department of Economics, Uppsala University, P.O. Box 513, SE-751 20 Uppsala (Sweden)

    2008-01-15

    Consider a market where producers submit supply functions to a procurement auction with uncertain demand, e.g. an electricity auction. In the Supply Function Equilibrium (SFE), every firm commits to the supply function that maximises expected profit in the one-shot game given the supply functions of competitors. A basic weakness of the SFE is the presence of multiple equilibria. This paper shows that with (i) symmetric producers, (ii) perfectly inelastic demand, (iii) a price cap, and (iv) capacity constraints that bind with a positive probability, there exists a unique, symmetric SFE. (author)

  10. [Celiac disease: an unique autoinmune model].

    Science.gov (United States)

    Rodrigo Sáez, Luis Ricardo

    2008-01-01

    Celiac disease is a unique autoimmune disorder, because the environmental precipitant factor is known. It is gluten, the major storage protein of wheat and similar grains. Originally was considered a rare malabsorption syndrome of childhood, but nowadays is recognized a common condition, that affects to 1% of the general population, all over the world', involves to all different races, may be diagnosed at any age, and affects to many organ systems. Therapy for the disease is a gluten-free-diet that must be strict and long-term. This diet cause a total recovery clinical and analytical, with excellent quality of life of patients.

  11. Uniqueness, Self belonging and Intercourse in Nature

    OpenAIRE

    Kirsh, Dr. Marvin / E.

    2010-01-01

    This manuscript has ensued from my past studies in biochemistry (PhD, CUNY 1986) and my current endeavors in graduate study in philosophy and anthropology. The current research project began during my period as a graduate student in biochemistry with a professor of classical genetics comment that DNA was unique in the physical world. The paradox presented to relate this notion to existing natural law lead me to evolve and communicate a view that the world itself is a special case of a general...

  12. Uniqueness, scale, and resolution issues in groundwater model parameter identification

    Directory of Open Access Journals (Sweden)

    Tian-chyi J. Yeh

    2015-07-01

    Full Text Available This paper first visits uniqueness, scale, and resolution issues in groundwater flow forward modeling problems. It then makes the point that non-unique solutions to groundwater flow inverse problems arise from a lack of information necessary to make the problems well defined. Subsequently, it presents the necessary conditions for a well-defined inverse problem. They are full specifications of (1 flux boundaries and sources/sinks, and (2 heads everywhere in the domain at at least three times (one of which is t = 0, with head change everywhere at those times must being nonzero for transient flow. Numerical experiments are presented to corroborate the fact that, once the necessary conditions are met, the inverse problem has a unique solution. We also demonstrate that measurement noise, instability, and sensitivity are issues related to solution techniques rather than the inverse problems themselves. In addition, we show that a mathematically well-defined inverse problem, based on an equivalent homogeneous or a layered conceptual model, may yield physically incorrect and scenario-dependent parameter values. These issues are attributed to inconsistency between the scale of the head observed and that implied by these models. Such issues can be reduced only if a sufficiently large number of observation wells are used in the equivalent homogeneous domain or each layer. With a large number of wells, we then show that increase in parameterization can lead to a higher-resolution depiction of heterogeneity if an appropriate inverse methodology is used. Furthermore, we illustrate that, using the same number of wells, a highly parameterized model in conjunction with hydraulic tomography can yield better characterization of the aquifer and minimize the scale and scenario-dependent problems. Lastly, benefits of the highly parameterized model and hydraulic tomography are tested according to their ability to improve predictions of aquifer responses induced by

  13. Unmanned Aerial Vehicles unique cost estimating requirements

    Science.gov (United States)

    Malone, P.; Apgar, H.; Stukes, S.; Sterk, S.

    Unmanned Aerial Vehicles (UAVs), also referred to as drones, are aerial platforms that fly without a human pilot onboard. UAVs are controlled autonomously by a computer in the vehicle or under the remote control of a pilot stationed at a fixed ground location. There are a wide variety of drone shapes, sizes, configurations, complexities, and characteristics. Use of these devices by the Department of Defense (DoD), NASA, civil and commercial organizations continues to grow. UAVs are commonly used for intelligence, surveillance, reconnaissance (ISR). They are also use for combat operations, and civil applications, such as firefighting, non-military security work, surveillance of infrastructure (e.g. pipelines, power lines and country borders). UAVs are often preferred for missions that require sustained persistence (over 4 hours in duration), or are “ too dangerous, dull or dirty” for manned aircraft. Moreover, they can offer significant acquisition and operations cost savings over traditional manned aircraft. Because of these unique characteristics and missions, UAV estimates require some unique estimating methods. This paper describes a framework for estimating UAV systems total ownership cost including hardware components, software design, and operations. The challenge of collecting data, testing the sensitivities of cost drivers, and creating cost estimating relationships (CERs) for each key work breakdown structure (WBS) element is discussed. The autonomous operation of UAVs is especially challenging from a software perspective.

  14. Event Segmentation Ability Uniquely Predicts Event Memory

    Science.gov (United States)

    Sargent, Jesse Q.; Zacks, Jeffrey M.; Hambrick, David Z.; Zacks, Rose T.; Kurby, Christopher A.; Bailey, Heather R.; Eisenberg, Michelle L.; Beck, Taylor M.

    2013-01-01

    Memory for everyday events plays a central role in tasks of daily living, autobiographical memory, and planning. Event memory depends in part on segmenting ongoing activity into meaningful units. This study examined the relationship between event segmentation and memory in a lifespan sample to answer the following question: Is the ability to segment activity into meaningful events a unique predictor of subsequent memory, or is the relationship between event perception and memory accounted for by general cognitive abilities? Two hundred and eight adults ranging from 20 to 79 years old segmented movies of everyday events and attempted to remember the events afterwards. They also completed psychometric ability tests and tests measuring script knowledge for everyday events. Event segmentation and script knowledge both explained unique variance in event memory above and beyond the psychometric measures, and did so as strongly in older as in younger adults. These results suggest that event segmentation is a basic cognitive mechanism, important for memory across the lifespan. PMID:23942350

  15. Astronomy Outreach for Large and Unique Audiences

    Science.gov (United States)

    Lubowich, D.; Sparks, R. T.; Pompea, S. M.; Kendall, J. S.; Dugan, C.

    2013-04-01

    In this session, we discuss different approaches to reaching large audiences. In addition to star parties and astronomy events, the audiences for some of the events include music concerts or festivals, sick children and their families, minority communities, American Indian reservations, and tourist sites such as the National Mall. The goal is to bring science directly to the public—to people who attend astronomy events and to people who do not come to star parties, science museums, or science festivals. These programs allow the entire community to participate in astronomy activities to enhance the public appreciation of science. These programs attract large enthusiastic crowds often with young children participating in these family learning experiences. The public will become more informed, educated, and inspired about astronomy and will also be provided with information that will allow them to continue to learn after this outreach activity. Large and unique audiences often have common problems, and their solutions and the lessons learned will be presented. Interaction with the participants in this session will provide important community feedback used to improve astronomy outreach for large and unique audiences. New ways to expand astronomy outreach to new large audiences will be discussed.

  16. An experiment on Lowest Unique Integer Games

    Science.gov (United States)

    Yamada, Takashi; Hanaki, Nobuyuki

    2016-12-01

    We experimentally study Lowest Unique Integer Games (LUIGs) to determine if and how subjects self-organize into different behavioral classes. In a LUIG, N(≥ 3) players submit a positive integer up to M and the player choosing the smallest number not chosen by anyone else wins. LUIGs are simplified versions of real systems such as Lowest/Highest Unique Bid Auctions that have been attracting attention from scholars, yet experimental studies are scarce. Furthermore, LUIGs offer insights into choice patterns that can shed light on the alleviation of congestion problems. Here, we consider four LUIGs with N = { 3 , 4 } and M = { 3 , 4 } . We find that (a) choices made by more than 1/3 of subjects were not significantly different from what a symmetric mixed-strategy Nash equilibrium (MSE) predicts; however, (b) subjects who behaved significantly differently from what the MSE predicts won the game more frequently. What distinguishes subjects was their tendencies to change their choices following losses.

  17. Comparing Point Clouds

    Science.gov (United States)

    2004-04-01

    Point clouds are one of the most primitive and fundamental surface representations. A popular source of point clouds are three dimensional shape...acquisition devices such as laser range scanners. Another important field where point clouds are found is in the representation of high-dimensional...framework for comparing manifolds given by point clouds is presented in this paper. The underlying theory is based on Gromov-Hausdorff distances, leading

  18. 2D-local existence and uniqueness of a transient state of a coupled radiative-conductive heat transfer problem

    OpenAIRE

    Ghattassi, Mohamed; Roche, Jean Rodolphe; Schmitt, Didier; Boutayeb, Mohamed

    2016-01-01

    This paper deals with local existence and uniqueness results for a transient two-dimensional combined nonlinear radiative-conductive system. This system describes the heat transfer for a grey, semi-transparent and non-scattering medium with homogeneous Dirichlet boundary conditions. We reformulate the full transient state system as a fixed-point problem. The existence and uniqueness proof rests upon the Banach fixed-point Theorem assuming the initial data T 0 is non-negative and sufficiently ...

  19. Point by Point: Adding up Motivation

    Science.gov (United States)

    Marchionda, Denise

    2010-01-01

    Students often view their course grades as a mysterious equation of teacher-given grades, teacher-given grace, and some other ethereal components based on luck. However, giving students the power to earn points based on numerous daily/weekly assignments and attendance makes the grading process objective and personal, freeing the instructor to…

  20. The core and unique proteins of haloarchaea

    Directory of Open Access Journals (Sweden)

    Capes Melinda D

    2012-01-01

    Full Text Available Abstract Background Since the first genome of a halophilic archaeon was sequenced in 2000, biologists have been advancing the understanding of genomic characteristics that allow for survival in the harsh natural environments of these organisms. An increase in protein acidity and GC-bias in the genome have been implicated as factors in tolerance to extreme salinity, desiccation, and high solar radiation. However, few previous attempts have been made to identify novel genes that would permit survival in such extreme conditions. Results With the recent release of several new complete haloarchaeal genome sequences, we have conducted a comprehensive comparative genomic analysis focusing on the identification of unique haloarchaeal conserved proteins that likely play key roles in environmental adaptation. Using bioinformatic methods, we have clustered 31,312 predicted proteins from nine haloarchaeal genomes into 4,455 haloarchaeal orthologous groups (HOGs. We assigned likely functions by association with established COG and KOG databases in NCBI. After identifying homologs in four additional haloarchaeal genomes, we determined that there were 784 core haloarchaeal protein clusters (cHOGs, of which 83 clusters were found primarily in haloarchaea. Further analysis found that 55 clusters were truly unique (tucHOGs to haloarchaea and qualify as signature proteins while 28 were nearly unique (nucHOGs, the vast majority of which were coded for on the haloarchaeal chromosomes. Of the signature proteins, only one example with any predicted function, Ral, involved in desiccation/radiation tolerance in Halobacterium sp. NRC-1, was identified. Among the core clusters, 33% was predicted to function in metabolism, 25% in information transfer and storage, 10% in cell processes and signaling, and 22% belong to poorly characterized or general function groups. Conclusion Our studies have established conserved groups of nearly 800 protein clusters present in all

  1. Esthetics in Orthodontics: interest points, reference points and discrepancy points

    Directory of Open Access Journals (Sweden)

    Carlos Alexandre Câmara

    2012-10-01

    Full Text Available It is fundamental for orthodontists and all professionals related with facial, oral and dental esthetics to know how the individuals observe dentofacial structures. Thus, it will be the purpose of this Orthodontic Insight to present and describe the Interest, Reference and Discrepancy. Points With the knowledge and perception of these points it will be easier for orthodontists to create a convergent canal of communication with their patients.É fundamental para os ortodontistas e todos os profissionais que estão envolvidos com a estética facial, bucal e dentária conhecer a forma como os indivíduos observam as estruturas dentofaciais. Sendo assim, será o objetivo desse artigo apresentar e descrever os pontos de Interesse, de Referência e de Discrepância. Com o conhecimento e percepção desses pontos, será mais fácil para os ortodontistas criar canais convergentes de comunicação com os seu pacientes.

  2. Conditional and Unique Coloring of Graphs

    CERN Document Server

    Reddy, P Venkata Subba

    2011-01-01

    For integers $k, r > 0$, a conditional $(k,r)$-coloring of a graph $G$ is a proper $k$-coloring of the vertices of $G$ such that every vertex $v$ of degree $d(v)$ in $G$ is adjacent to at least $\\min\\{r, d(v)\\}$ differently colored vertices. Given $r$, the smallest integer $k$ for which $G$ has a conditional $(k,r)$-coloring is called the $r$th order conditional chromatic number $\\chi_r(G)$ of $G$. We give results (exact values or bounds for $\\chi_r(G)$, depending on $r$) related to the conditional coloring of some graphs. We introduce \\emph{unique conditional colorability} and give some related results. (Keywords. cartesian product of graphs; conditional chromatic number; gear graph; join of graphs.)

  3. Developing innovative programs for unique student populations.

    Science.gov (United States)

    Heath, D A; Caruso, J; Chauncey, D M

    1994-12-01

    Optometric education has been faced with ever-increasing expectations. These include the ability to educate students and practitioners to care for new patient populations, deal with more diverse and complex clinical problems, to be significant participants in the research community and to fulfill leadership positions within the profession. To fulfill this expectation, schools and colleges need to diversify their program offerings to attract and educate unique student populations who come from diverse backgrounds and bring a range of pre-existing knowledge and skills. This paper provides an overview of The New England College of Optometry's efforts in this area and two programs, the "Advanced Standing International Program" and the "Accelerated Doctor of Optometry Degree Program," are examined in detail. An emphasis is placed on outcomes assessment to ensure the programs are fulfilling their purpose and the results of a retrospective analysis of the two programs is provided.

  4. Computational Transition at the Uniqueness Threshold

    CERN Document Server

    Sly, Allan

    2010-01-01

    The hardcore model is a model of lattice gas systems which has received much attention in statistical physics, probability theory and theoretical computer science. It is the probability distribution over independent sets $I$ of a graph weighted proportionally to $\\lambda^{|I|}$ with fugacity parameter $\\lambda$. We prove that at the uniqueness threshold of the hardcore model on the $d$-regular tree, approximating the partition function becomes computationally hard on graphs of maximum degree $d$. Specifically, we show that unless NP$=$RP there is no polynomial time approximation scheme for the partition function (the sum of such weighted independent sets) on graphs of maximum degree $d$ for fugacity $\\lambda_c(d) 0$. Weitz produced an FPTAS for approximating the partition function when $0<\\lambda < \\lambda_c(d)$ so this result demonstrates that the computational threshold exactly coincides with the statistical physics phase transition thus confirming the main conjecture of [28]. We further analyze the s...

  5. Organizing the spatially and temporally unique hydrosphere

    Science.gov (United States)

    Berghuijs, Wouter

    2016-04-01

    Growing anthropogenic activity is quickly changing the hydrosphere. Panta Rhei calls for improved understanding of changing hydrosphere dynamics in their connection with human systems. I argue that progress within the Panta Rhei initiative is strongly limited by the absence of hydrological principles that help to organise our spatially and temporally unique hydrosphere; without guiding principles (e.g. classification systems) hydrology will continue to be a case study dominated science that will have a hard time to efficiently improve understanding, estimation and prediction of human affected systems. Exposing such organising principles should not be considered as a step backwards into the recent PUB decade. Instead, it should be regarded as an exciting scientific challenge that is becoming increasingly relevant now the hydrosphere is quickly changing.

  6. Multiple floating metatarsals: a unique injury

    Institute of Scientific and Technical Information of China (English)

    Vivek Trikha; Tarun Goyal; Amit K Agarwal

    2013-01-01

    Concomitant dislocation of the tarsometatarsal and metatarsophalangeal joints of foot is an extremely rare injury.Such injuries presenting in a single or adjacent dual rays have been described in few cases previously.We describe such an injury in adjacent three metatarsals of a polytrauma patient.These injuries are likely to be missed in the initial assessment of a polytrauma patient.These patients are at risk of an overlooked diagnosis but the consequences of missing this type of injury may be quite severe.This case is presented in view of its uniqueness along with possible mechanism of injury,the sequence of reduction and follow-up.Knowledge of such injury and its proper management may be useful to the trauma surgeons.

  7. Hue discrimination, unique hues and naming.

    Science.gov (United States)

    Bachy, Romain; Dias, Jérôme; Alleysson, David; Bonnardel, Valérie

    2012-02-01

    The hue discrimination curve (HDC) that characterizes performances over the entire hue circle was determined by using sinusoidally modulated spectral power distributions of 1.5 c/300 nm with fixed amplitude and twelve reference phases. To investigate relationship between hue discrimination and appearance, observers further performed a free color naming and unique hue tasks. The HDC consistently displayed two minima and two maxima; discrimination is optimal at the yellow/orange and blue/magenta boundaries and pessimal in green and in the extra-spectral magenta colors. A linear model based on Müller zone theory correctly predicts a periodical profile but with a phase-opponency (minima/maxima at 180° apart) which is inconsistent with the empirical HDC's profile.

  8. Injectable hydrogels as unique biomedical materials.

    Science.gov (United States)

    Yu, Lin; Ding, Jiandong

    2008-08-01

    A concentrated fish soup could be gelled in the winter and re-solled upon heating. In contrast, some synthetic copolymers exhibit an inverse sol-gel transition with spontaneous physical gelation upon heating instead of cooling. If the transition in water takes place below the body temperature and the chemicals are biocompatible and biodegradable, such gelling behavior makes the associated physical gels injectable biomaterials with unique applications in drug delivery and tissue engineering etc. Various therapeutic agents or cells can be entrapped in situ and form a depot merely by a syringe injection of their aqueous solutions at target sites with minimal invasiveness and pain. This tutorial review summarizes and comments on this soft matter, especially thermogelling poly(ethylene glycol)-(biodegradable polyester) block copolymers. The main types of injectable hydrogels are also briefly introduced, including both physical gels and chemical gels.

  9. Fullerenes as unique nanopharmaceuticals for disease treatment

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    As unique nanoparticles,fullerenes have attracted much attention due to their unparalleled physical,chemical and biological properties.Various functionalized fullerenes with OH,NH2,COOH,and peptide modifications were developed.It summarized the biological activities of fullerenes derivatives in cancer therapy with high efficiency and low toxicity,as reactive oxygen species scavenger and lipid peroxidation inhibitor,to inhibit human immunodeficiency virus and to suppress bacteria and microbial at low concentration.In addition,the mechanism for fullerene to enter cells and biodistribution of fullerene in vivo was also discussed.This research focuses on the current understanding of fullerenes-based nanomaterials in the potential clinical application as well as biological mechanism of fullerenes and its derivatives in disease therapy.

  10. Detecting beer intake by unique metabolite patterns

    DEFF Research Database (Denmark)

    Gürdeniz, Gözde; Jensen, Morten Georg; Meier, Sebastian

    2016-01-01

    Evaluation of health related effects of beer intake is hampered by the lack of accurate tools for assessing intakes (biomarkers). Therefore, we identified plasma and urine metabolites associated with recent beer intake by untargeted metabolomics and established a characteristic metabolite pattern...... representing raw materials and beer production as a qualitative biomarker of beer intake. In a randomized, crossover, single-blinded meal study (MSt1) 18 participants were given one at a time four different test beverages: strong, regular and non-alcoholic beers and a soft drink. Four participants were...... assigned to have two additional beers (MSt2). In addition to plasma and urine samples, test beverages, wort and hops extract were analyzed by UPLC-QTOF. A unique metabolite pattern reflecting beer metabolome, including metabolites derived from beer raw material (i.e. N-methyl tyramine sulfate and the sum...

  11. The bacterial magnetosome: a unique prokaryotic organelle.

    Science.gov (United States)

    Lower, Brian H; Bazylinski, Dennis A

    2013-01-01

    The bacterial magnetosome is a unique prokaryotic organelle comprising magnetic mineral crystals surrounded by a phospholipid bilayer. These inclusions are biomineralized by the magnetotactic bacteria which are ubiquitous, aquatic, motile microorganisms. Magnetosomes cause cells of magnetotactic bacteria to passively align and swim along the Earth's magnetic field lines, as miniature motile compass needles. These specialized compartments consist of a phospholipid bilayer membrane surrounding magnetic crystals of magnetite (Fe3O4) or greigite (Fe3S4). The morphology of these membrane-bound crystals varies by species with a nominal magnetic domain size between 35 and 120 nm. Almost all magnetotactic bacteria arrange their magnetosomes in a chain within the cell there by maximizing the magnetic dipole moment of the cell. It is presumed that magnetotactic bacteria use magnetotaxis in conjunction with chemotaxis to locate and maintain an optimum position for growth and survival based on chemistry, redox and physiology in aquatic habitats with vertical chemical concentration and redox gradients. The biosynthesis of magnetosomes is a complex process that involves several distinct steps including cytoplasmic membrane modifications, iron uptake and transport, initiation of crystallization, crystal maturation and magnetosome chain formation. While many mechanistic details remain unresolved, magnetotactic bacteria appear to contain the genetic determinants for magnetosome biomineralization within their genomes in clusters of genes that make up what is referred to as the magnetosome gene island in some species. In addition, magnetosomes contain a unique set of proteins, not present in other cellular fractions, which control the biomineralization process. Through the development of genetic systems, proteomic and genomic work, and the use of molecular and biochemical tools, the functions of a number of magnetosome membrane proteins have been demonstrated and the molecular

  12. Intestinal perforation--a unique cause.

    Science.gov (United States)

    Kansal, G; Agrawal, V

    2000-04-01

    An illiterate, 65 years old, male attended surgery emergency with features of perforation peritonitis. Exploratory laparotomy revealed perforation in the terminal ileum and a sharp metallic object pointing at the perforation site. This, on removal, was found to be the sharp edge of a blister pack (with intact tablet within). The perforation was repaired. The abdomen was closed after leaving a drain. Postoperatively the patient had a morbid period and ultimately responded to management.

  13. Émission de photons uniques par un atome unique piégé

    Science.gov (United States)

    Darquié, B.; Beugnon, J.; Jones, M. P. A.; Dingjan, J.; Sortais, Y.; Browaeys, A.; Messin, G.; Grangier, P.

    2006-10-01

    En illuminant un atome unique piégé dans une pince optique de taille micrométrique à l'aide d'impulsions lumineuses résonantes d'une durée de 4 ns, nous avons réalisé une source efficace de photons uniques déclenchés, de polarisation bien définie. Nous avons mesuré la fonction d'autocorrélation temporelle en intensité qui met en évidence un dégroupement de photons presque parfait. Une telle source de photons uniques de haut flux possède des applications potentielles pour le traitement de l'information quantique.

  14. 14 CFR 221.203 - Unique rule numbers required.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Unique rule numbers required. 221.203... PROCEEDINGS) ECONOMIC REGULATIONS TARIFFS Electronically Filed Tariffs § 221.203 Unique rule numbers required... bear a unique rule number. (b) The unique rule numbers for the fares specified in this section shall...

  15. Cryogenic Vibrational Spectroscopy Provides Unique Fingerprints for Glycan Identification.

    Science.gov (United States)

    Masellis, Chiara; Khanal, Neelam; Kamrath, Michael Z; Clemmer, David E; Rizzo, Thomas R

    2017-06-22

    The structural characterization of glycans by mass spectrometry is particularly challenging. This is because of the high degree of isomerism in which glycans of the same mass can differ in their stereochemistry, attachment points, and degree of branching. Here we show that the addition of cryogenic vibrational spectroscopy to mass and mobility measurements allows one to uniquely identify and characterize these complex biopolymers. We investigate six disaccharide isomers that differ in their stereochemistry, attachment point of the glycosidic bond, and monosaccharide content, and demonstrate that we can identify each one unambiguously. Even disaccharides that differ by a single stereogenic center or in the monosaccharide sequence order show distinct vibrational fingerprints that would clearly allow their identification in a mixture, which is not possible by ion mobility spectrometry/mass spectrometry alone. Moreover, this technique can be applied to larger glycans, which we demonstrate by distinguishing isomeric branched and linear pentasaccharides. The creation of a database containing mass, collision cross section, and vibrational fingerprint measurements for glycan standards should allow unambiguous identification and characterization of these biopolymers in mixtures, providing an enabling technology for all fields of glycoscience. Graphical Abstract ᅟ.

  16. Existence and uniqueness results for pantograph equations with generalized fractional derivative

    Directory of Open Access Journals (Sweden)

    D. Vivek

    2017-08-01

    Full Text Available In this paper, we study the existence and uniqueness results for nonlinear pantograph equations with generalized fractional derivative(Katugampola Caputo fractional derivative. We use the Krasnoselkii's fixed point theorem to show the existence results. An example is provided to illustrate the results.

  17. Existence and Uniqueness Theorem of Fractional Mixed Volterra-Fredholm Integrodifferential Equation with Integral Boundary Conditions

    Directory of Open Access Journals (Sweden)

    Shayma Adil Murad

    2011-01-01

    Full Text Available We study the existence and uniqueness of the solutions of mixed Volterra-Fredholm type integral equations with integral boundary condition in Banach space. Our analysis is based on an application of the Krasnosel'skii fixed-point theorem.

  18. TMACS I/O termination point listing. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Scaief, C.C. III

    1994-09-13

    This document provides a listing of all analog and discrete input/output (I/O) points connected to the Tank Monitor and Control System (TMACS). The list also provides other information such as the point tag name, termination location, description, drawing references and other parameters. The purpose is to define each point`s unique tag name and to cross reference the point with other associated information that may be necessary for activities such as maintenance, calibration, diagnostics, or design changes. It provides a list in one document of all I/O points that would otherwise only be available by referring to all I/O termination drawings.

  19. Interesting Interest Points

    DEFF Research Database (Denmark)

    Aanæs, Henrik; Dahl, Anders Lindbjerg; Pedersen, Kim Steenstrup

    2012-01-01

    on spatial invariance of interest points under changing acquisition parameters by measuring the spatial recall rate. The scope of this paper is to investigate the performance of a number of existing well-established interest point detection methods. Automatic performance evaluation of interest points is hard......Not all interest points are equally interesting. The most valuable interest points lead to optimal performance of the computer vision method in which they are employed. But a measure of this kind will be dependent on the chosen vision application. We propose a more general performance measure based...... position. The LED illumination provides the option for artificially relighting the scene from a range of light directions. This data set has given us the ability to systematically evaluate the performance of a number of interest point detectors. The highlights of the conclusions are that the fixed scale...

  20. Localization Using Visual Odometry and a Single Downward-Pointing Camera

    Science.gov (United States)

    Swank, Aaron J.

    2012-01-01

    Stereo imaging is a technique commonly employed for vision-based navigation. For such applications, two images are acquired from different vantage points and then compared using transformations to extract depth information. The technique is commonly used in robotics for obstacle avoidance or for Simultaneous Localization And Mapping, (SLAM). Yet, the process requires a number of image processing steps and therefore tends to be CPU-intensive, which limits the real-time data rate and use in power-limited applications. Evaluated here is a technique where a monocular camera is used for vision-based odometry. In this work, an optical flow technique with feature recognition is performed to generate odometry measurements. The visual odometry sensor measurements are intended to be used as control inputs or measurements in a sensor fusion algorithm using low-cost MEMS based inertial sensors to provide improved localization information. Presented here are visual odometry results which demonstrate the challenges associated with using ground-pointing cameras for visual odometry. The focus is for rover-based robotic applications for localization within GPS-denied environments.

  1. Serial floating point formatter

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, R. D.; Penner, W. A.

    1985-11-12

    A floating point formatter for changing fixed point serial digital data, such as that received by a seismic data acquisition system, is disclosed wherein fixed point serial digital data is received and scaled to remove any bias added by preamplification. The scaled data is shifted a predetermined number of bits and a resulting exponent is calculated. The shifted data signal and corresponding exponent are combined and further scaled to permit stacking the data without exceeding the system capacity.

  2. Geodesics on Point Clouds

    OpenAIRE

    Hongchuan Yu; Zhang, Jian J.; Zheng Jiao

    2014-01-01

    We present a novel framework to compute geodesics on implicit surfaces and point clouds. Our framework consists of three parts, particle based approximate geodesics on implicit surfaces, Cartesian grid based approximate geodesics on point clouds, and geodesic correction. The first two parts can effectively generate approximate geodesics on implicit surfaces and point clouds, respectively. By introducing the geodesic curvature flow, the third part produces smooth and accurate geodesic solution...

  3. Alpbach Summer School - a unique learning experience

    Science.gov (United States)

    Kern, K.; Aulinas, J.; Clifford, D.; Krejci, D.; Topham, R.

    2011-12-01

    The Alpbach Summer School is a ten-day program that provides a unique opportunity for young european science and engineering students, both undergraduate and graduate, to learn how to approach the entire design process of a space mission. The theme of the 2010 Summer School was "New Space Missions to Understand Climate Change", a current, challenging, very broad and complex topic. The program was established more than 35 years ago and is organised in two interrelated parts: a series of lectures held by renowned experts in the field (in the case of this specific year, climate change and space engineering experts) that provides a technical and scientific background for the workshops that follow, the core of the Summer School. For the workshops the students are split into four international, interdisciplinary teams of about 15 students. In 2010 every team had to complete a number of tasks, four in total: (1) identify climate change research gaps and design a space mission that has not yet been flown or proposed, (2) define the science objectives and requirements of the mission, (3) design a spacecraft that meets the mission requirements, which includes spacecraft design and construction, payload definition, orbit calculations, but also the satellite launch, operation and mission costs and (4) write up a short mission proposal and present the results to an expert review panel. Achieving these tasks in only a few days in a multicultural, interdisciplinary team represents a major challenge for all participants and provides an excellent practical learning experience. Over the course of the program, students do not just learn facts about climate change and space engineering, but scientists also learn from engineers and engineers from scientists. The participants have to deepen their knowledge in an often unfamiliar field, develop organisational and team-work skills and work under pressure. Moreover, teams are supported by team and roving tutors and get the opportunity to

  4. The AD: The unique anti-accelerator

    CERN Multimedia

    Slide show by Maximilien Brice. Voice (French only): Jacques Fichet. Content: Paola Catapano, Django Manglunki, CERN Bulletin

    2011-01-01

    Unlike other machines whose performance is measured in terms of energy records, AD's uniqueness resides in the fact that it can very effectively decelerate beams. At the hearth of antimatter production at CERN, the AD is making headlines in the world's press. This provides an excellent opportunity for us to retrace its history in images.   var flash_video_player=get_video_player_path(); insert_player_for_external('Video/Public/Movies/2011/CERN-MOVIE-2011-083/CERN-MOVIE-2011-083-0753-kbps-480x360-25-fps-audio-64-kbps-44-kHz-stereo', 'mms://mediastream.cern.ch/MediaArchive/Video/Public/Movies/2011/CERN-MOVIE-2011-083/CERN-MOVIE-2011-083-0480-kbps-384x288-25-fps-audio-128-kbps-48-kHz-stereo.wmv', 'false', 480, 360, 'http://mediaarchive.cern.ch/MediaArchive/Video/Public/Movies/2011/CERN-MOVIE-2011-083/CERN-MOVIE-2011-083-posterframe-480x360-at-5-percent.jpg', '1357551', true, '');  

  5. Arachnoiditis ossificans and syringomyelia: A unique presentation

    Science.gov (United States)

    Opalak, Charles F.; Opalak, Michael E.

    2015-01-01

    Background: Arachnoiditis ossificans (AO) is a rare disorder that was differentiated from leptomeningeal calcification by Kaufman and Dunsmore in 1971. It generally presents with progressive lower extremity myelopathy. Though the underlying etiology has yet to be fully described, it has been associated with various predisposing factors including vascular malformations, previous intradural surgery, myelograms, and adhesive arachnoiditis. Associated conditions include syringomyelia and arachnoid cyst. The preferred diagnostic method is noncontrast computed tomography (CT). Surgical intervention is still controversial and can include decompression and duroplasty or durotomy. Case Description: The authors report the case of a 62-year-old male with a history of paraplegia who presented with a urinary tract infection and dysautonomia. His past surgical history was notable for a C4–C6 anterior fusion and an intrathecal phenol injection for spasticity. A magnetic resonance image (MR) also demonstrated a T6-conus syringx. At surgery, there was significant ossification of the arachnoid/dura, which was removed. After a drain was placed in the syrinx, there was a significant neurologic improvement. Conclusion: This case demonstrates a unique presentation of AO and highlights the need for CT imaging when a noncommunicating syringx is identified. In addition, surgical decompression can achieve good results when AO is associated with concurrent compressive lesions. PMID:26693389

  6. Unique type of isolated cardiac valvular amyloidosis

    Directory of Open Access Journals (Sweden)

    Reehana Salma

    2006-10-01

    Full Text Available Abstract Background Amyloid deposition in heart is a common occurrence in systemic amyloidosis. But localised valvular amyloid deposits are very uncommon. It was only in 1922 that the cases of valvular amyloidosis were reported. Then in 1980, Goffin et al reported another type of valvular amyloidosis, which he called the dystrophic valvular amyloidosis. We report a case of aortic valve amyloidosis which is different from the yet described valvular amyloidosis. Case presentation A 72 years old gentleman underwent urgent aortic valve replacement. Intraoperatively, a lesion was found attached to the inferior surface of his bicuspid aortic valve. Histopathology examination of the valve revealed that the lesion contained amyloid deposits, identified as AL amyloidosis. The serum amyloid A protein (SAP scan was normal and showed no evidence of systemic amyloidosis. The ECG and echocardiogram were not consistent with cardiac amyloidosis. Conclusion Two major types of cardiac amyloidosis have been described in literature: primary-myelomatous type (occurs with systemic amyolidosis, and senile type(s. Recently, a localised cardiac dystrophic valvular amyloidosis has been described. In all previously reported cases, there was a strong association of localised valvular amyloidosis with calcific deposits. Ours is a unique case which differs from the previously reported cases of localised valvular amyloidosis. In this case, the lesion was not associated with any scar tissue. Also there was no calcific deposit found. This may well be a yet unknown type of isolated valvular amyloidosis.

  7. Unique Ganglioside Recognition Strategies for Clostridial Neurotoxins

    Energy Technology Data Exchange (ETDEWEB)

    Benson, Marc A.; Fu, Zhuji; Kim, Jung-Ja P.; Baldwin, Michael R. (MCW); (UMC)

    2012-03-15

    Botulinum neurotoxins (BoNTs) and tetanus neurotoxin are the causative agents of the paralytic diseases botulism and tetanus, respectively. The potency of the clostridial neurotoxins (CNTs) relies primarily on their highly specific binding to nerve terminals and cleavage of SNARE proteins. Although individual CNTs utilize distinct proteins for entry, they share common ganglioside co-receptors. Here, we report the crystal structure of the BoNT/F receptor-binding domain in complex with the sugar moiety of ganglioside GD1a. GD1a binds in a shallow groove formed by the conserved peptide motif E ... H ... SXWY ... G, with additional stabilizing interactions provided by two arginine residues. Comparative analysis of BoNT/F with other CNTs revealed several differences in the interactions of each toxin with ganglioside. Notably, exchange of BoNT/F His-1241 with the corresponding lysine residue of BoNT/E resulted in increased affinity for GD1a and conferred the ability to bind ganglioside GM1a. Conversely, BoNT/E was not able to bind GM1a, demonstrating a discrete mechanism of ganglioside recognition. These findings provide a structural basis for ganglioside binding among the CNTs and show that individual toxins utilize unique ganglioside recognition strategies.

  8. Unique biosynthesis of sesquarterpenes (C35 terpenes).

    Science.gov (United States)

    Sato, Tsutomu

    2013-01-01

    To the best of my knowledge, only 19 cyclic and 8 linear C35 terpenes have been identified to date, and no family name was assigned to this terpene class until recently. In 2011, it was proposed that these C35 terpenes should be called sesquarterpenes. This review highlights the biosynthesis of two kinds of sesquarterpenes (C35 terpenes) that are produced via cyclization of a linear C35 isoprenoid in Bacillus and Mycobacterium species. In Bacillus species, a new type of terpene cyclase that has no sequence homology with any known terpene synthases, as well as a bifunctional terpene cyclase that biosynthesizes two classes of cyclic terpenes with different numbers of carbons as natural products, have been identified. On the other hand, in Mycobacterium species, the first bifunctional Z-prenyltransferase has been found, but a novel terpene cyclase and a unique polyprenyl reductase remain unidentified. The identification of novel enzyme types should lead to the discovery of many homologous enzymes and their products including novel natural compounds. On the other hand, many enzymes responsible for the biosynthesis of natural products have low substrate specificities in vitro. Therefore, to find novel natural products present in organisms, the multifunctionality of enzymes in the biosynthetic pathway of natural products should be analyzed.

  9. Condition evaluation of a unique mining site

    Institute of Scientific and Technical Information of China (English)

    Liu Junsheng; Chen Frank Y.; Ma Yan; Zhang Siya

    2015-01-01

    The primary objective of this study was to evaluate the existing conditions and the stability of a mining site in which the unique features of seismicity, mining activity, hydrological conditions, geological con-ditions, environmental conditions, and future development plans were considered. In particular, the potential subsidence locations near the proposed construction site, the effects of mining boundary profile, and the influence scope of the mining activity on the neighboring areas were investigated using the finite element method. The study results indicate:(1) the overlying sandstone layer to the coal layer is the key to the stability of the mining roof; (2) the broken boundary has the most effect, followed by the arc boundary and linear boundary; (3) the safe distance from the mining boundary should be at least 400 m if the proposed structure is to be built near an active mining site. Other relevant engineering rec-ommendations are also proposed. The concluded results from this study may serve as a guide to other similar sites in the world.

  10. On recall rate of interest point detectors

    DEFF Research Database (Denmark)

    Aanæs, Henrik; Lindbjerg Dahl, Anders; Pedersen, Kim Steenstrup

    2010-01-01

    In this paper we provide a method for evaluating interest point detectors independently of image descriptors. This is possible because we have compiled a unique data set enabling us to determine if common interest points are found. The data contains 60 scenes of a wide range of object types......, and for each scene we have 119 precisely located camera positions obtained from a camera mounted on an industrial robot arm. The scene surfaces have been scanned using structured light, providing precise 3D ground truth. We have investigated a number of the most popular interest point detectors where we...... systematically have varied camera position, light and model parameters. The overall conclusion is that the Harris and Hessian corner detectors perform well followed by MSER, whereas the FAST corner detector, IBR and EBR performs poorly. Furthermore, only the number of interest points change with changing...

  11. On Recall Rate of Interest Point Detectors

    DEFF Research Database (Denmark)

    Aanæs, Henrik; Dahl, Anders Lindbjerg; Pedersen, Kim Steenstrup

    2010-01-01

    in relation to the number of interest points, the recall rate as a function of camera position and light variation, and the sensitivity relative to model parameter change. The overall conclusion is that the Harris corner detector has a very high recall rate, but is sensitive to change in scale. The Hessian......In this paper we provide a method for evaluating interest point detectors independently of image descriptors. This is possible because we have compiled a unique data set enabling us to determine if common interest points are found. The data contains 60 scenes of a wide range of object types......, and for each scene we have 119 precisely located camera positions obtained from a camera mounted on an industrial robot arm. The scene surfaces have been scanned using structured light, providing precise 3D ground truth. We have investigated a number of the most popular interest point detectors. This is done...

  12. Pro SharePoint 2010 Solution Development

    CERN Document Server

    Hild, E

    2010-01-01

    This book takes a practical problem-solution approach to common business challenges. You'll not only encounter interesting code samples, but also see how to combine these examples with the Microsoft collaboration platform's services. The book's solutions focus on using Visual Studio 2008 and its built-in Office development tools to construct the user interface layer. And solutions can interact with SharePoint as a service provider, taking advantage of SharePoint's many collaboration features like document repositories, collaboration sites, and search functions. This book is unique because it s

  13. Model Breaking Points Conceptualized

    Science.gov (United States)

    Vig, Rozy; Murray, Eileen; Star, Jon R.

    2014-01-01

    Current curriculum initiatives (e.g., National Governors Association Center for Best Practices and Council of Chief State School Officers 2010) advocate that models be used in the mathematics classroom. However, despite their apparent promise, there comes a point when models break, a point in the mathematical problem space where the model cannot,…

  14. Sunspot Bright Points

    CERN Document Server

    Choudhary, Debi Prasad

    2010-01-01

    We used the flux calibrated images through the Broad Band Filter Imager and Stokes Polarimeter data obtained with the Solar Optical Telescope onboard the Hinode spacecraft to study the properties of bright points in and around the sunspots. The well isolated bright points were selected and classified as umbral dot, peripheral umbral dot, penumbral grains and G-band bright point depending on their location. Most of the bright points are smaller than about 150 km. The larger points are mostly associated with the penumbral features. The bright points are not uniformly distributed over the umbra but preferentially located around the penumbral boundary and in the fast decaying parts of umbra. The color temperature of the bright points, derived using the continuum irradiance, are in the range of 4600 K to 6600 K with cooler ones located in the umbra. The temperature increases as a function of distance from the center to outside. The G-band, CN-band and CaII H flux of the bright points as a function of their blue ba...

  15. Nickel Curie Point Engine

    Science.gov (United States)

    Chiaverina, Chris; Lisensky, George

    2014-01-01

    Ferromagnetic materials such as nickel, iron, or cobalt lose the electron alignment that makes them attracted to a magnet when sufficient thermal energy is added. The temperature at which this change occurs is called the "Curie temperature," or "Curie point." Nickel has a Curie point of 627 K, so a candle flame is a sufficient…

  16. Model Breaking Points Conceptualized

    Science.gov (United States)

    Vig, Rozy; Murray, Eileen; Star, Jon R.

    2014-01-01

    Current curriculum initiatives (e.g., National Governors Association Center for Best Practices and Council of Chief State School Officers 2010) advocate that models be used in the mathematics classroom. However, despite their apparent promise, there comes a point when models break, a point in the mathematical problem space where the model cannot,…

  17. Generalization of common fixed point theorems for weakly commuting maps by altering distances

    Directory of Open Access Journals (Sweden)

    K. P. R. Sastry

    2000-09-01

    Full Text Available The main purpose of this paper is to obtain conditions for the existence of a unique common fixed point for four selfmaps on a complete metric space by altering distances between the points.

  18. Fixed points and contraction factor functions

    NARCIS (Netherlands)

    Voorneveld, M.

    2001-01-01

    In a complete metric space (X; d), we dene w-distance functions p : X X ! [0; 1), of which the metric d is a special case, and contraction factor functions r : X X ! [0; 1) such that if p(Tx;Ty) r(x; y)p(x; y) for all x; y 2 X, thenT : X ! X has a (unique) xed point.

  19. Fixed points and contraction factor functions

    NARCIS (Netherlands)

    Voorneveld, M.

    2000-01-01

    In a complete metric space (X; d), we dene w-distance functions p : X X ! [0; 1), of which the metric d is a special case, and contraction factor functions r : X X ! [0; 1) such that if p(Tx;Ty) r(x; y)p(x; y) for all x; y 2 X, thenT : X ! X has a (unique) xed point.

  20. Holographic Three point Functions

    DEFF Research Database (Denmark)

    Bissi, Agnese

    In this thesis it is addressed the problem of the computation of three point correlation functions within the AdS=CFT correspondence. In the context of the AdS 5=CFT4 correspondence we present three computations. First we compare the results of tree level three point functions of two giant...... gravitons and a point like graviton and its dual counterpart, namely two Schur polynomials and a single trace chiral primary. Secondly we compute the one loop correction to planar, non extremal three point functions of two heavy and one light operators, both from the gauge and string side in the Frolov......-Tseytlin regime. Finally we generalize the scalar product of two states belonging to the SO(6) sector of N = 4 SYM with implications on the construction of three point functions of 3 non-BPS operators from the gauge theory side. On the other hand in the AdS4=CFT3 correspondence we compare the computations...

  1. Multispectral Image Feature Points

    Directory of Open Access Journals (Sweden)

    Cristhian Aguilera

    2012-09-01

    Full Text Available This paper presents a novel feature point descriptor for the multispectral image case: Far-Infrared and Visible Spectrum images. It allows matching interest points on images of the same scene but acquired in different spectral bands. Initially, points of interest are detected on both images through a SIFT-like based scale space representation. Then, these points are characterized using an Edge Oriented Histogram (EOH descriptor. Finally, points of interest from multispectral images are matched by finding nearest couples using the information from the descriptor. The provided experimental results and comparisons with similar methods show both the validity of the proposed approach as well as the improvements it offers with respect to the current state-of-the-art.

  2. Holographic Three point Functions

    DEFF Research Database (Denmark)

    Bissi, Agnese

    In this thesis it is addressed the problem of the computation of three point correlation functions within the AdS=CFT correspondence. In the context of the AdS 5=CFT4 correspondence we present three computations. First we compare the results of tree level three point functions of two giant...... gravitons and a point like graviton and its dual counterpart, namely two Schur polynomials and a single trace chiral primary. Secondly we compute the one loop correction to planar, non extremal three point functions of two heavy and one light operators, both from the gauge and string side in the Frolov......-Tseytlin regime. Finally we generalize the scalar product of two states belonging to the SO(6) sector of N = 4 SYM with implications on the construction of three point functions of 3 non-BPS operators from the gauge theory side. On the other hand in the AdS4=CFT3 correspondence we compare the computations...

  3. Publication point indicators

    DEFF Research Database (Denmark)

    Elleby, Anita; Ingwersen, Peter

    2010-01-01

    with novel publication point indicators (PPIs) that are formalized and exemplified. Two diachronic citation windows are applied: 2006-07 and 2006-08. Web of Science (WoS) as well as Google Scholar (GS) are applied to observe the cite delay and citedness for the different document types published by DIIS......The paper presents comparative analyses of two publication point systems, The Norwegian and the in-house system from the interdiscplinary Danish Institute for International Studies (DIIS), used as case in the study for publications published 2006, and compares central citation-based indicators......; the Cumulated Publication Point Indicator (CPPI), which graphically illustrates the cumulated gain of obtained vs. ideal points, both seen as vectors; and the normalized Cumulated Publication Point Index (nCPPI) that represents the cumulated gain of publication success as index values, either graphically...

  4. Evolution of a Unique Systems Engineering Capability

    Energy Technology Data Exchange (ETDEWEB)

    Robert M. Caliva; James A. Murphy; Kyle B. Oswald

    2011-06-01

    The Idaho National Laboratory (INL) is a science-based, applied engineering laboratory dedicated to supporting U.S. Department of Energy missions in nuclear and energy research, science, and national security. The INL’s Systems Engineering organization supports all of the various programs under this wide array of missions. As with any multifaceted organization, strategic planning is essential to establishing a consistent culture and a value discipline throughout all levels of the enterprise. While an organization can pursue operational excellence, product leadership or customer intimacy, it is extremely difficult to excel or achieve best-in-class at all three. In fact, trying to do so has resulted in the demise of a number of organizations given the very intricate balancing act that is necessary. The INL’s Systems Engineering Department has chosen to focus on customer intimacy where the customer’s needs are first and foremost and a more total solution is the goal. Frequently a total solution requires the employment of specialized tools to manage system complexity. However, it is only after understanding customer needs that tool selection and use would be pursued. This results in using both commercial-off-the-shelf (COTS) tools and, in some cases, requires internal development of specialized tools. This paper describes how a unique systems engineering capability, through the development of customized tools, evolved as a result of this customer-focused culture. It also addresses the need for a common information model or analysis framework and presents an overview of the tools developed to manage and display relationships between entities, support trade studies through the application of utility theory, and facilitate the development of a technology roadmap to manage system risk and uncertainty.

  5. Unique properties of Plasmodium falciparum porphobilinogen deaminase.

    Science.gov (United States)

    Nagaraj, Viswanathan Arun; Arumugam, Rajavel; Gopalakrishnan, Bulusu; Jyothsna, Yeleswarapu Sri; Rangarajan, Pundi N; Padmanaban, Govindarajan

    2008-01-04

    The hybrid pathway for heme biosynthesis in the malarial parasite proposes the involvement of parasite genome-coded enzymes of the pathway localized in different compartments such as apicoplast, mitochondria, and cytosol. However, knowledge on the functionality and localization of many of these enzymes is not available. In this study, we demonstrate that porphobilinogen deaminase encoded by the Plasmodium falciparum genome (PfPBGD) has several unique biochemical properties. Studies carried out with PfPBGD partially purified from parasite membrane fraction, as well as recombinant PfPBGD lacking N-terminal 64 amino acids expressed and purified from Escherichia coli cells (DeltaPfPBGD), indicate that both the proteins are catalytically active. Surprisingly, PfPBGD catalyzes the conversion of porphobilinogen to uroporphyrinogen III (UROGEN III), indicating that it also possesses uroporphyrinogen III synthase (UROS) activity, catalyzing the next step. This obviates the necessity to have a separate gene for UROS that has not been so far annotated in the parasite genome. Interestingly, DeltaPfP-BGD gives rise to UROGEN III even after heat treatment, although UROS from other sources is known to be heat-sensitive. Based on the analysis of active site residues, a DeltaPfPBGDL116K mutant enzyme was created and the specific activity of this recombinant mutant enzyme is 5-fold higher than DeltaPfPBGD. More interestingly, DeltaPfPBGDL116K catalyzes the formation of uroporphyrinogen I (UROGEN I) in addition to UROGEN III, indicating that with increased PBGD activity the UROS activity of PBGD may perhaps become rate-limiting, thus leading to non-enzymatic cyclization of preuroporphyrinogen to UROGEN I. PfPBGD is localized to the apicoplast and is catalytically very inefficient compared with the host red cell enzyme.

  6. The Einstein constraints: uniqueness and non-uniqueness in the conformal thin sandwich approach

    CERN Document Server

    Baumgarte, T W; Pfeiffer, H P; Baumgarte, Thomas W.; Murchadha, Niall \\'{O}; Pfeiffer, Harald P.

    2006-01-01

    We study the appearance of multiple solutions to certain decompositions of Einstein's constraint equations. Pfeiffer and York recently reported the existence of two branches of solutions for identical background data in the extended conformal thin-sandwich decomposition. We show that the Hamiltonian constraint alone, when expressed in a certain way, admits two branches of solutions with properties very similar to those found by Pfeiffer and York. We construct these two branches analytically for a constant-density star in spherical symmetry, but argue that this behavior is more general. In the case of the Hamiltonian constraint this non-uniqueness is well known to be related to the sign of one particular term, and we argue that the extended conformal thin-sandwich equations contain a similar term that causes the breakdown of uniqueness.

  7. Do acupuncture points exist?

    Energy Technology Data Exchange (ETDEWEB)

    Yan Xiaohui; Zhang Xinyi [Department of Physics, Surface Physics Laboratory (State Key Laboratory), and Synchrotron Radiation Research Center of Fudan University, Shanghai 200433 (China); Liu Chenglin [Physics Department of Yancheng Teachers' College, Yancheng 224002 (China); Dang, Ruishan [Second Military Medical University, Shanghai 200433 (China); Huang Yuying; He Wei [Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 (China); Ding Guanghong [Shanghai Research Center of Acupuncture and Meridian, Pudong, Shanghai 201203 (China)

    2009-05-07

    We used synchrotron x-ray fluorescence analysis to probe the distribution of four chemical elements in and around acupuncture points, two located in the forearm and two in the lower leg. Three of the four acupuncture points showed significantly elevated concentrations of elements Ca, Fe, Cu and Zn in relation to levels in the surrounding tissue, with similar elevation ratios for Cu and Fe. The mapped distribution of these elements implies that each acupuncture point seems to be elliptical with the long axis along the meridian. (note)

  8. Characterizing the unique photochemical environment in China

    Science.gov (United States)

    Liu, Z.; Wang, Y.; Gu, D.; Zhao, C.; Huey, L. G.; Stickel, R.; Liao, J.

    2010-12-01

    Recent observational evidence suggests that the atmospheric chemical system over China could be more complex than expected, possibly as a result of the rapid increasing anthropogenic emissions. During the CAREBeijing-2007 Experiment in August of 2007, up to 14 ppbv of peroxyacetyl nitrate (PAN, CH3C(O)OONO2) and 4.5 ppbv of glyoxal (CHOCHO) were observed, among the highest levels observed in the world in recent years. Elevated nitrous acid (HNO2) (~1.0 ppbv on average) was also observed in the early afternoon despite of the moderate amount of its precursors, i.e. nitrogen oxides (NOx=NO + NO2). We employ a 1-D photochemical model (REAM) to analyze the observations. The results indicate that reactive aromatics are the dominating source of PAN (55%-75%) and glyoxal (90%), and methylglyoxal is the major precursor of peroxy acetyl radical (50%). Downward transport from boundary layer is found to contribute ~50% of the PAN observed at surface. Photolysis of HNO2 is by far the largest primary OH source (more than 50%) throughout the daytime, and yet the fast formation rate of HNO2 inferred from the observations could not be explained by current known mechanisms. Detailed photochemical analysis is conducted to understand the controlling factors for O3 formation. O3 formation chemistry is strongly affected by aromatics and HNO2. By providing a large primary OH source, HNO2 leads to ~25% enhancement of the average O3 production rate, and aromatics contribute ~40% by serving as a major source of RO2 and HO2 radicals. Due to the large abundance of reactive hydrocarbons, O3 formation is generally NOx limited, although the sensitivity is low that a 50% reduction of NOx could only result in less than 25% reduction of the O3 production rate. Future research targeting HNO2 formation mechanism and emission sources of aromatics is necessary for better understanding the unique photochemical environment in China under significant anthropogenic impacts and the regional pollution

  9. MARMA VIJNANA: UNIQUENESS OF AYURVEDIC SURGERY

    Directory of Open Access Journals (Sweden)

    Bali Yogitha

    2012-12-01

    Full Text Available The surgical experience of the ancient age has been compiled systematically in Sushrutha samhitha, which is the first documentation of its kind. The wounds in ancient time were commonly caused by stabs with sword, arrow, spear etc. The word marma and its application exist from the vedic period in India. No medical history is as old as two centuries namely India and China.1 The word marma dates back to this period, which is considered to be the oldest one among Vedas where several plants and healthcares have been described. 4 Acharya Charaka represents the Atreya School of physicians and Acharya Sushrutha represents the Dhanwantari school of Surgeons. Charak also has emphasized more on marma vijnana, where this school sited important consequential marma from physician point of view but acknowledged total number of 107 marmas in the body. He devoted in his treatise, two chapters on Trimarma(Tripods of life or more important being life threatening organs of the body, hridya, murdha and vasti. Marmas of trunk are comparatively more important than marmas of shakha (extremities. The concept of trimarma and the importance given by charaka may be analysed even today. 1

  10. Zeeman Doppler Maps: Always Unique, Never Spurious?

    Science.gov (United States)

    Stift, Martin J.; Leone, Francesco

    2017-01-01

    Numerical models of atomic diffusion in magnetic atmospheres of ApBp stars predict abundance structures that differ from the empirical maps derived with (Zeeman) Doppler mapping (ZDM). An in-depth analysis of this apparent disagreement investigates the detectability by means of ZDM of a variety of abundance structures, including (warped) rings predicted by theory, but also complex spot-like structures. Even when spectra of high signal-to-noise ratio are available, it can prove difficult or altogether impossible to correctly recover shapes, positions, and abundances of a mere handful of spots, notwithstanding the use of all four Stokes parameters and an exactly known field geometry; the recovery of (warped) rings can be equally challenging. Inversions of complex abundance maps that are based on just one or two spectral lines usually permit multiple solutions. It turns out that it can by no means be guaranteed that any of the regularization functions in general use for ZDM (maximum entropy or Tikhonov) will lead to a true abundance map instead of some spurious one. Attention is drawn to the need for a study that would elucidate the relation between the stratified, field-dependent abundance structures predicted by diffusion theory on the one hand, and empirical maps obtained by means of “canonical” ZDM, i.e., with mean atmospheres and unstratified abundances, on the other hand. Finally, we point out difficulties arising from the three-dimensional nature of the atomic diffusion process in magnetic ApBp star atmospheres.

  11. Designated Wildlife Lakes - points

    Data.gov (United States)

    Minnesota Department of Natural Resources — This is a point shapefile of Designated Wildlife Lakes in Minnesota. This shapefile was created by converting lake polygons from the Designated Wildlife Lakes...

  12. Point/Counterpoint

    DEFF Research Database (Denmark)

    Ungar, David; Ernst, Erik

    2007-01-01

    Point Argument: "Dynamic Languages (in Reactive Environments) Unleash Creativity," by David Ungar. For the sake of creativity, the profession needs to concentrate more on inventing new and better dynamic languages and environments and less on improving static languages. Counterpoint Argument...

  13. Allegheny County Address Points

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains address points which represent physical address locations assigned by the Allegheny County addressing authority. Data is updated by County...

  14. Point tenderness - abdomen

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003273.htm Point tenderness - abdomen To use the sharing features on this page, ... over a certain part of the belly area (abdomen). Considerations The abdomen is an area of the ...

  15. National Wetlands Inventory Points

    Data.gov (United States)

    Minnesota Department of Natural Resources — Wetland point features (typically wetlands that are too small to be as area features at the data scale) mapped as part of the National Wetlands Inventory (NWI). The...

  16. Triple Point Topological Metals

    Directory of Open Access Journals (Sweden)

    Ziming Zhu

    2016-07-01

    Full Text Available Topologically protected fermionic quasiparticles appear in metals, where band degeneracies occur at the Fermi level, dictated by the band structure topology. While in some metals these quasiparticles are direct analogues of elementary fermionic particles of the relativistic quantum field theory, other metals can have symmetries that give rise to quasiparticles, fundamentally different from those known in high-energy physics. Here, we report on a new type of topological quasiparticles—triple point fermions—realized in metals with symmorphic crystal structure, which host crossings of three bands in the vicinity of the Fermi level protected by point group symmetries. We find two topologically different types of triple point fermions, both distinct from any other topological quasiparticles reported to date. We provide examples of existing materials that host triple point fermions of both types and discuss a variety of physical phenomena associated with these quasiparticles, such as the occurrence of topological surface Fermi arcs, transport anomalies, and topological Lifshitz transitions.

  17. Bedrock Outcrop Points Compilation

    Data.gov (United States)

    Vermont Center for Geographic Information — A compilation of bedrock outcrops as points and/or polygons from 1:62,500 and 1:24,000 geologic mapping by the Vermont Geological Survey, the United States...

  18. Transitivity on Weierstrass points

    CERN Document Server

    Laing, Zoe

    2010-01-01

    We look for Riemann surfaces whose automorphism group acts transitively on the Weierstrass points. We concentrate on hyperelliptic surfaces, surfaces with PSL(2, q) as automorphism group, Platonic surfaces and Fermat curves.

  19. Iowa Geologic Sampling Points

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Point locations of geologic samples/files in the IGS repository. Types of samples include well cuttings, outcrop samples, cores, drillers logs, measured sections,...

  20. Allegheny County Address Points

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains address points which represent physical address locations assigned by the Allegheny County addressing authority. Data is updated by County...

  1. SEVERAL UNIQUENESS THEOREMS OF ALGEBROID FUNCTIONS ON ANNULI

    Institute of Scientific and Technical Information of China (English)

    Yang TAN

    2016-01-01

    In this paper, we discuss the uniqueness problem of algebroid functions on an-nuli, we get several uniqueness theorems of algebroid functions on annuli, which extend the Nevanlinna value distribution theory for algebroid functions on annuli.

  2. Existence and uniqueness of positive eigenfunctions for certain eigenvalue systems

    OpenAIRE

    Xue, Ru-Ying; Yang, Yi-Min

    2004-01-01

    The existence and uniqueness of eigenvalues and positive eigenfunctions for some quasilinear elliptic systems are considered. Some necessary and sufficient conditions which guarantee the existence and uniqueness of eigenvalues and positive eigenfunctions are given.

  3. EXISTENCE AND UNIQUENESS OF POSITIVE EIGENVALUES FOR CERTAIN EIGENVALUE SYSTEMS

    Institute of Scientific and Technical Information of China (English)

    XUE Ruying; QIN Yuchun

    1999-01-01

    In this paper we consider certain eigenvalue systems.Imposing some reasonable hypotheses, we prove that theeigenvalue system has a unique eigenvalue with positiveeigenfunctions, and that the eigenfunction is unique upto a scalar multiple.

  4. Uniqueness Problems for Meromorphic Functions that Share Three Values

    Institute of Scientific and Technical Information of China (English)

    WANGJian-ping

    2005-01-01

    This paper investigate the uniqueness problems for meromorphic functions that share three values CM and proves a uniqueness theorem on this topic which can be used to improve some previous related results.

  5. Existence and uniqueness of solutions to the multispecies virtual population analysis equations.

    Science.gov (United States)

    Magnus, R J; Magnusson, K G

    1987-01-01

    This paper deals with the question of existence and uniqueness of solutions to multispecies virtual population analysis equations for predator-prey systems. By formulating the question as a fixed-point problem for a certain function F, it is shown that at least one solution always exists. By using Brouwer degree, sufficient conditions for uniqueness are derived which are more likely to be satisfied than those based on the requirement that F be a contraction. Some of these are formulated as inequalities which could be verified in the course of solving the equations numerically.

  6. Existence and uniqueness of mild solutions for fractional semilinear differential equations

    Directory of Open Access Journals (Sweden)

    Bambang Hendriya Guswanto

    2015-06-01

    Full Text Available In this article, we study the existence and uniqueness of a local mild solution for a class of semilinear differential equations involving the Caputo fractional time derivative of order $\\alpha$ $(0<\\alpha<1$ and, in the linear part, a sectorial linear operator A. We put some conditions on a nonlinear term f and an initial data $u_0$ in terms of the fractional power of A. By applying Banach's Fixed Point Theorem, we obtain a unique local mild solution with smoothing effects, estimates, and a behavior at t close to 0. An example as an application of our results is also given.

  7. SharePoint 2010 Business Intelligence 24-Hour Trainer

    CERN Document Server

    Jorgensen, Adam; Knight, Devin; LeBlanc, Patrick; Schacht, Brad

    2011-01-01

    Learn to build and deliver SharePoint BI applications Written by a team of leading SharePoint and Business Intelligence (BI) experts, this unique book-and-DVD package shows you how to successfully build and deliver BI applications using SharePoint 2010. Assuming no previous SharePoint experience, the authors deliver a clear explanation of what SharePoint will do for your BI and information management capabilities. Each lesson in the book is reinforced with a helpful tutorial on the DVD and cover topics such as interactive reporting with Excel, document sharing for collaborative reporting, and

  8. Indexing Moving Points

    DEFF Research Database (Denmark)

    Agarwal, Pankaj K.; Arge, Lars Allan; Erickson, Jeff

    2003-01-01

    also describe an indexing scheme in which the number of I/Os required to answer a query depends monotonically on the difference between the query time stamp t and the current time. Finally, we develop an efficient indexing scheme to answer approximate nearest-neighbor queries among moving points.......We propose three indexing schemes for storing a set S of N points in the plane, each moving along a linear trajectory, so that any query of the following form can be answered quickly: Given a rectangle R and a real value t, report all K points of S that lie inside R at time t. We first present...... an indexing structure that, for any given constant >0, uses O(N/B) disk blocks and answers a query in O((N/B)1/2+ +K/B) I/Os, where B is the block size. It can also report all the points of S that lie inside R during a given time interval. A point can be inserted or deleted, or the trajectory of a point can...

  9. ROSAT Discovers Unique, Distant Cluster of Galaxies

    Science.gov (United States)

    1995-06-01

    Brightest X-ray Cluster Acts as Strong Gravitational Lens Based on exciting new data obtained with the ROSAT X-ray satellite and a ground-based telescope at the ESO La Silla Observatory, a team of European astronomers [2] has just discovered a very distant cluster of galaxies with unique properties. It emits the strongest X-ray emission of any cluster ever observed by ROSAT and is accompanied by two extraordinarily luminous arcs that represent the gravitationally deflected images of even more distant objects. The combination of these unusual characteristics makes this cluster, now known as RXJ1347.5-1145, a most interesting object for further cosmological studies. DISCOVERY AND FOLLOW-UP OBSERVATIONS This strange cluster of galaxies was discovered during the All Sky Survey with the ROSAT X-ray satellite as a moderately intense X-ray source in the constellation of Virgo. It could not be identified with any already known object and additional ground-based observations were therefore soon after performed with the Max-Planck-Society/ESO 2.2-metre telescope at the La Silla observatory in Chile. These observations took place within a large--scale redshift survey of X-ray clusters of galaxies detected by the ROSAT All Sky Survey, a so-called ``ESO Key Programme'' led by astronomers from the Max-Planck-Institut fur Extraterrestrische Physik and the Osservatorio Astronomico di Brera. The main aim of this programme is to identify cluster X-ray sources, to determine the distance to the X-ray emitting clusters and to investigate their overall properties. These observations permitted to measure the redshift of the RXJ1347.5-1145 cluster as z = 0.45, i.e. it moves away from us with a velocity (about 106,000 km/sec) equal to about one-third of the velocity of light. This is an effect of the general expansion of the universe and it allows to determine the distance as about 5,000 million light-years (assuming a Hubble constant of 75 km/sec/Mpc). In other words, we see these

  10. STEREOREGULAR POLY(CYCLOHEXENE CARBONATE)S: UNIQUE CRYSTALLIZATION BEHAVIOR

    Institute of Scientific and Technical Information of China (English)

    Guang-peng Wu; Shi-dong Jiang; Xiao-bing Lu; Wei-min Ren; Shou-ke Yan

    2012-01-01

    An example of crystalline CO2-based polymer from the asymmetric alternating copolymerization of CO2 and cyclohexene oxide is reported.Isotacticity of poly(cyclohexene carbonate) (PCHC) has the critical influence on the crystallinity,and only copolymers with a isotacticity of more than 90% are crystallizable.The stereoregular PCHC is a typical semi-crystalline thermoplastic,and possesses a high melting point (Tm) of 215-230℃ and a decomposition temperature of ca.310℃.The spherulitic morphology of (R)-PCHC grows in a clockwise spiral from a center,and that of (S)-PCHC is a counterclockwise spiral,while the stereocomplex of (S)-PCHC/(R)-PCHC (1/1 mass ratio) presents lath-like dendritic crystal.The novel crystalline CO2-based polycarbonate represents a rare example of optically active polymers with unique crystallization behavior.Our findings reflect the critical influence of stereoregularity on the crystallization for this kind of polymeric materials,and may lead to developments of thermal-resistance CO2 copolymers for application in engineering thermoplastics.

  11. The unique cysteine knot regulates the pleotropic hormone leptin.

    Directory of Open Access Journals (Sweden)

    Ellinor Haglund

    Full Text Available Leptin plays a key role in regulating energy intake/expenditure, metabolism and hypertension. It folds into a four-helix bundle that binds to the extracellular receptor to initiate signaling. Our work on leptin revealed a hidden complexity in the formation of a previously un-described, cysteine-knotted topology in leptin. We hypothesized that this unique topology could offer new mechanisms in regulating the protein activity. A combination of in silico simulation and in vitro experiments was used to probe the role of the knotted topology introduced by the disulphide-bridge on leptin folding and function. Our results surprisingly show that the free energy landscape is conserved between knotted and unknotted protein, however the additional complexity added by the knot formation is structurally important. Native state analyses led to the discovery that the disulphide-bond plays an important role in receptor binding and thus mediate biological activity by local motions on distal receptor-binding sites, far removed from the disulphide-bridge. Thus, the disulphide-bridge appears to function as a point of tension that allows dissipation of stress at a distance in leptin.

  12. Unique copper-induced oligomers mediate alpha-synuclein toxicity.

    Science.gov (United States)

    Wright, Josephine A; Wang, Xiaoyan; Brown, David R

    2009-08-01

    Parkinson's disease and a number of other neurodegenerative diseases have been linked to either genetic mutations in the alpha-synuclein gene or show evidence of aggregates of the alpha-synuclein protein, sometimes in the form of Lewy bodies. There currently is no clear evidence of a distinct neurotoxic species of alpha-synuclein to explain the death of neurons in these diseases. We undertook to assess the toxicity of alpha-synuclein via exogenous application in cell culture. Initially, we showed that only aggregated alpha-synuclein is neurotoxic and requires the presence copper but not iron. Other members of the synuclein family showed no toxicity in any form and inherited point mutations did not alter the effective toxic concentration of alpha-synuclein. Through protein fractionation techniques, we were able to isolate an oligomeric species responsible for the toxicity of alpha-synuclein. This oligomeric species has a unique stellate appearance under EM and again, requires association with copper to induce cell death. The results allow us to suggest that the toxic species of alpha-synuclein in vivo could possibly be these stellate oligomers and not fibrils. Our data provide a link between the recently noted association of copper and alpha-synuclein and a potential role for the combination in causing neurodegeneration.

  13. On the Uniqueness of the Canonical Polyadic Decomposition of third-order tensors --- Part II: Uniqueness of the overall decomposition

    OpenAIRE

    Domanov, Ignat; De Lathauwer, Lieven

    2013-01-01

    Canonical Polyadic (also known as Candecomp/Parafac) Decomposition (CPD) of a higher-order tensor is decomposition in a minimal number of rank-1 tensors. In Part I, we gave an overview of existing results concerning uniqueness and presented new, relaxed, conditions that guarantee uniqueness of one factor matrix. In Part II we use these results for establishing overall CPD uniqueness in cases where none of the factor matrices has full column rank. We obtain uniqueness conditions involving Khat...

  14. Arctic tipping points

    OpenAIRE

    Smolkova, Valentina

    2015-01-01

    The Arctic is warming much faster than the entire planet, and this causes severe melting of sea ice. However, the climate of different regions of the Earth is interconnected, and changes in the amount of ice in the Arctic can dramatically affect the climate across the whole planet. Some scientists claim that a possible tipping point is the event of the ice-free Arctic Ocean in summer. Certain predictions point towards ice-free Arctic summers around the year 2050, whereas others pre- dict this...

  15. Non-uniqueness of the Dirac theory in a curved spacetime

    CERN Document Server

    Arminjon, Mayeul

    2010-01-01

    We summarize a recent work on the subject title. The Dirac equation in a curved spacetime depends on a field of coefficients (essentially the Dirac matrices), for which a continuum of different choices are possible. We study the conditions under which a change of the coefficient fields leads to an equivalent Hamiltonian operator H, or to an equivalent energy operator E. In this paper, we focus on the standard version of the gravitational Dirac equation, but the non-uniqueness applies also to our alternative versions. We find that the changes which lead to an equivalent operator H, or respectively to an equivalent operator E, are determined by initial data, or respectively have to make some point-dependent antihermitian matrix vanish. Thus, the vast majority of the possible coefficient changes lead neither to an equivalent operator H, nor to an equivalent operator E, whence a lack of uniqueness. We show that even the Dirac energy spectrum is not unique.

  16. Non-uniqueness of the Dirac theory in a curved spacetime

    Science.gov (United States)

    Arminjon, Mayeul; Reifler, Frank

    2010-04-01

    We summarize a recent work on the subject title. The Dirac equation in a curved spacetime depends on a field of coefficients (essentially the Dirac matrices), for which a continuum of different choices are possible. We study the conditions under which a change of the coefficient fields leads to an equivalent Hamiltonian operator H, or to an equivalent energy operator E. In this paper, we focus on the standard version of the gravitational Dirac equation, but the non-uniqueness applies also to our alternative versions. We find that the changes which lead to an equivalent operator H, or respectively to an equivalent operator E, are determined by initial data, or respectively have to make some point-dependent antihermitian matrix vanish. Thus, the vast majority of the possible coefficient changes lead neither to an equivalent operator H, nor to an equivalent operator E, whence a lack of uniqueness. We show that even the Dirac energy spectrum is not unique.

  17. Nonuniqueness versus Uniqueness of Optimal Policies in Convex Discounted Markov Decision Processes

    Directory of Open Access Journals (Sweden)

    Raúl Montes-de-Oca

    2013-01-01

    Full Text Available From the classical point of view, it is important to determine if in a Markov decision process (MDP, besides their existence, the uniqueness of the optimal policies is guaranteed. It is well known that uniqueness does not always hold in optimization problems (for instance, in linear programming. On the other hand, in such problems it is possible for a slight perturbation of the functional cost to restore the uniqueness. In this paper, it is proved that the value functions of an MDP and its cost perturbed version stay close, under adequate conditions, which in some sense is a priority. We are interested in the stability of Markov decision processes with respect to the perturbations of the cost-as-you-go function.

  18. 75 FR 17796 - American Vantage Companies; Notice of Application

    Science.gov (United States)

    2010-04-07

    ... Companies on Form N-CSR (``Form N-CSR''), each for the reporting period ended December 31, 2009. The amended... the exception of its Form N-SAR and Form N-CSR, each for the reporting period ended December 31, 2009... exception from the definition of investment company in paragraph (1) or (7) of section 3(c) of the Act....

  19. Holographic Three point Functions

    DEFF Research Database (Denmark)

    Martirosyan, Ara

    The main subject of this thesis is the computation of structure constants appearing in the three-point functions for certain type of states/operators in the context of the AdS/CFT correspondence, which is one of the important parts of the dynamical problem in the dual theories of the correspondence...

  20. New Novae snack point

    CERN Multimedia

    2012-01-01

    Located next to the car park by the flag poles, a few metres from the Main CERN Reception (building 33), a new snack point catered by Novae will open to the public on Wednesday 8 August. More information will be available in the next issue of the Bulletin!

  1. Points and Practices

    Science.gov (United States)

    Ahmed, Syed Jamil; Heddon, Dee; Mackey, Sally

    2007-01-01

    This collection of three articles represents the "Points and Practices" section of this month's issue of "Research in Drama Education." The first article, "'Fitting the Bill' for 'Helping Them.' A Response to 'Integrated Popular Theatre Approach in Africa' and 'Commissioned Theatre Projects on Human Rights in…

  2. ACCESS Pointing Control System

    Science.gov (United States)

    Brugarolas, Paul; Alexander, James; Trauger, John; Moody, Dwight; Egerman, Robert; Vallone, Phillip; Elias, Jason; Hejal, Reem; Camelo, Vanessa; Bronowicki, Allen; O'Connor, David; Partrick, Richard; Orzechowski, Pawel; Spitter, Connie; Lillie, Chuck

    2010-01-01

    ACCESS (Actively-Corrected Coronograph for Exoplanet System Studies) was one of four medium-class exoplanet concepts selected for the NASA Astrophysics Strategic Mission Concept Study (ASMCS) program in 2008/2009. The ACCESS study evaluated four major coronograph concepts under a common space observatory. This paper describes the high precision pointing control system (PCS) baselined for this observatory.

  3. Decision Points in Cataloging.

    Science.gov (United States)

    Bright, Franklyn F.

    Libraries are frequently faced with policy decisions which can affect the quality and cost of library services for years to come. This point can be illustrated by citing examples of decisions made at the University of Wisconsin Library in the areas of: (1) conforming to national cataloging standards; (2) producing catalog cards in-house; and (3)…

  4. Points and Practices

    Science.gov (United States)

    Ahmed, Syed Jamil; Heddon, Dee; Mackey, Sally

    2007-01-01

    This collection of three articles represents the "Points and Practices" section of this month's issue of "Research in Drama Education." The first article, "'Fitting the Bill' for 'Helping Them.' A Response to 'Integrated Popular Theatre Approach in Africa' and 'Commissioned Theatre Projects on Human Rights in…

  5. Publication point indicators

    DEFF Research Database (Denmark)

    Elleby, Anita; Ingwersen, Peter

    2010-01-01

    with novel publication point indicators (PPIs) that are formalized and exemplified. Two diachronic citation windows are applied: 2006-07 and 2006-08. Web of Science (WoS) as well as Google Scholar (GS) are applied to observe the cite delay and citedness for the different document types published by DIIS...

  6. Critical Points of Contact

    DEFF Research Database (Denmark)

    Jensen, Ole B.; Morelli, Nicola

    2011-01-01

    where the networks meet and establish contact. Thus we argue for the usefulness of the notion of Critical Point of Contact (CPC) to deepen our understanding of the actual life within networks. En route to this notion we draw upon theories within as diverse realms such as interaction design, service...

  7. Critical Points of Contact

    DEFF Research Database (Denmark)

    2012-01-01

    In this brief article, we shall illustrate the application of the analytical and interventionist concept of ‘Critical Points of Contact’ (CPC) through a number of urban design studios. The notion of CPC has been developed over a span of the last three to four years and is reported in more detail...

  8. Precise Point Positioning

    DEFF Research Database (Denmark)

    Zhang, Xiaohong

    determination’ based on the relationship between the point clouds on regular objects (e.g. flat top buildings) and the ground truth of the objects used for calibration. In order to extract the footprints on the objects, filtering was implemented before the calibration. Three example tests have been made...

  9. Holographic Three point Functions

    DEFF Research Database (Denmark)

    Martirosyan, Ara

    The main subject of this thesis is the computation of structure constants appearing in the three-point functions for certain type of states/operators in the context of the AdS/CFT correspondence, which is one of the important parts of the dynamical problem in the dual theories of the correspondence...

  10. Existence and uniqueness of a class of double pyramidal central configurations in six-body problems

    Institute of Scientific and Technical Information of China (English)

    LIU Xuefei

    2004-01-01

    Under the necessary conditions for a double pyramidal central configuration with a diamond base to exist in the real number space, the existence and uniqueness of such configurations were studied by employing combinedly the algebraic method and numerical calculation. It is found that there exists a planar curl triangle region G in a square Q such that any point in G and given by the ratio of the two diagonal lengths of the diamond base and the ratio of one diagonal length of the base to the height of the double pyramid configuration determines a unique double pyramid central configuration, while all points in Q-G have no referance to any central configuration.

  11. Evaluation of potential kidney donors with the personality assessment inventory: normative data for a unique population.

    Science.gov (United States)

    Hurst, Duane F; Locke, Dona E C; Osborne, David

    2010-09-01

    Many transplant centers require personality assessment and/or psychiatric clearance prior to allowing an individual to donate a kidney. This is a unique cohort for personality assessment, and there is no normative information available for this population on standardized self-report measures such as the Personality Assessment Inventory (PAI). We evaluated a prospective sample of 434 kidney donor candidates with development of normative T-scores relevant to this specific comparison group. Compared to the original normative group from the PAI manual, potential kidney donors are 5-7 T-score points above the mean on PIM, RXR, DOM, and WRM and 4-6 points below the mean on the majority of the remaining scales. Raw score/T score conversion tables are provided. The normative data provided here is meant to supplement the original normative information and aid psychologists in evaluation of this unique medical population.

  12. On the Global Existence and Uniqueness of Solutions to Prandtl's System

    Institute of Scientific and Technical Information of China (English)

    Xin Ying XU; Jun Ning ZHAO

    2009-01-01

    In this paper, we consider the Prandtl system for the non-stationary boundary layer in the vicinity of a point where the outer flow has zero velocity. It is assumed that U(t, x, y) = xmU1(t, x), where 0≤x≤L and m≥1. We establish the global existence of the weak solution to this problem. Moreover the uniqueness of the weak solution is proved.

  13. Monotone Concave Operators: An application to the existence and uniqueness of solutions to the Bellman equation

    OpenAIRE

    Cuong LE VAN; Morhaim, Lisa; Vailakis, Yiannis

    2008-01-01

    We propose a new approach to the issue of existence and uniqueness of solutions to the Bellman equation, exploiting an emerging class of methods, called monotone map methods, pioneered in the work of Krasnosel’skii (1964) and Krasnosel’skii-Zabreiko (1984). The approach is technically simple and intuitive. It is derived from geometric ideas related to the study of fixed points for monotone concave operators defined on partially order spaces.

  14. Unique Solution of a Coupled Fractional Differential System Involving Integral Boundary Conditions from Economic Model

    Directory of Open Access Journals (Sweden)

    Rui Li

    2013-01-01

    Full Text Available We study the existence and uniqueness of the positive solution for the fractional differential system involving the Riemann-Stieltjes integral boundary conditions , , , , , and , where , , and and are the standard Riemann-Liouville derivatives, and are functions of bounded variation, and and denote the Riemann-Stieltjes integral. Our results are based on a generalized fixed point theorem for weakly contractive mappings in partially ordered sets.

  15. An Exploration of Career Counselors' Perspectives on Advocacy

    Science.gov (United States)

    Fickling, Melissa J.

    2016-01-01

    Advocacy with and on behalf of clients is a major way in which counselors fulfill their core professional value of promoting social justice. Career counselors have a unique vantage point regarding social justice due to the economic and social nature of work and can offer useful insights. Q methodology is a mixed methodology that was used to…

  16. Development and Calibration of a Concept Inventory to Measure Introductory College Astronomy and Physics Students' Understanding of Newtonian Gravity

    Science.gov (United States)

    Williamson, Kathryn Elizabeth

    2013-01-01

    The topic of Newtonian gravity offers a unique vantage point from which to investigate and encourage conceptual change because it is something with which everyone has daily experience, and because it is taught in two courses that reach a wide variety of students--introductory-level college astronomy ("Astro 101") and physics ("Phys…

  17. Speaking to the Heart of Oral Contextualization: The Resounding Call for Critical Discussions on Civil Participation and Disobedience, from Black Radio to the Global Classroom

    Science.gov (United States)

    Johnson, Phylis

    2006-01-01

    Long overdue in the classroom is a critical examination of media coverage when seen and told through the unique vantage point of the audience and storyteller. This discussion is intended to demonstrate how to prepare students to critically examine and evaluate the social role of media within a diverse global society. The author elaborates on the…

  18. Development and Calibration of a Concept Inventory to Measure Introductory College Astronomy and Physics Students' Understanding of Newtonian Gravity

    Science.gov (United States)

    Williamson, Kathryn Elizabeth

    2013-01-01

    The topic of Newtonian gravity offers a unique vantage point from which to investigate and encourage conceptual change because it is something with which everyone has daily experience, and because it is taught in two courses that reach a wide variety of students--introductory-level college astronomy ("Astro 101") and physics ("Phys…

  19. Contested Namesakes: East Berlin School Names under Communism and in Reunified Germany

    Science.gov (United States)

    Plum, Catherine

    2005-01-01

    In this article, the author discusses how the municipal authorities eliminate the names of all schools in eastern Berlin in 1990 to formalize the spontaneous purge of school identities. She added, that the renaming of primary and secondary schools at this historical juncture provides a unique vantage point for examining what the democratic turning…

  20. Henig Proper Efficient Points and Generalized Henig Proper Efficient Points

    Institute of Scientific and Technical Information of China (English)

    Jing Hui QIU

    2009-01-01

    Applying the theory of locally convex spaces to vector optimization,we investigate the relationship between Henig proper efficient points and generalized Henig proper efficient points. In particular,we obtain a sufficient and necessary condition for generalized Henig proper efficient points to be Henig proper efficient points. From this,we derive several convenient criteria for judging Henig proper efficient points.

  1. Uniqueness of the differential Mueller matrix of uniform homogeneous media.

    Science.gov (United States)

    Devlaminck, Vincent; Ossikovski, Razvigor

    2014-06-01

    We show that the differential matrix of a uniform homogeneous medium containing birefringence may not be uniquely determined from its Mueller matrix, resulting in the potential existence of an infinite set of elementary polarization properties parameterized by an integer parameter. The uniqueness depends on the symmetry properties of a special differential matrix derived from the eigenvalue decomposition of the Mueller matrix. The conditions for the uniqueness of the differential matrix are identified, physically discussed, and illustrated in examples from the literature.

  2. Existence and uniqueness theorem for ODE: an overview

    OpenAIRE

    Poria, Swarup; Dhiman, Aman

    2016-01-01

    The study of existence and uniqueness of solutions became important due to the lack of general formula for solving nonlinear ordinary differential equations (ODEs). Compact form of existence and uniqueness theory appeared nearly 200 years after the development of the theory of differential equation. In the article, we shall discuss briefly the differences between linear and nonlinear first order ODE in context of existence and uniqueness of solutions. Special emphasis is given on the Lipschit...

  3. The quantum change point

    CERN Document Server

    Sentís, Gael; Calsamiglia, John; Chiribella, Giulio; Munoz-Tapia, Ramon

    2016-01-01

    Sudden changes are ubiquitous in nature. Identifying them is of crucial importance for a number of applications in medicine, biology, geophysics, and social sciences. Here we investigate the problem in the quantum domain, considering a source that emits particles in a default state, until a point where it switches to another state. Given a sequence of particles emitted by the source, the problem is to find out where the change occurred. For large sequences, we obtain an analytical expression for the maximum probability of correctly identifying the change point when joint measurements on the whole sequence are allowed. We also construct strategies that measure the particles individually and provide an online answer as soon as a new particle is emitted by the source. We show that these strategies substantially underperform the optimal strategy, indicating that quantum sudden changes, although happening locally, are better detected globally.

  4. Point clouds in BIM

    Science.gov (United States)

    Antova, Gergana; Kunchev, Ivan; Mickrenska-Cherneva, Christina

    2016-10-01

    The representation of physical buildings in Building Information Models (BIM) has been a subject of research since four decades in the fields of Construction Informatics and GeoInformatics. The early digital representations of buildings mainly appeared as 3D drawings constructed by CAD software, and the 3D representation of the buildings was only geometric, while semantics and topology were out of modelling focus. On the other hand, less detailed building representations, with often focus on ‘outside’ representations were also found in form of 2D /2,5D GeoInformation models. Point clouds from 3D laser scanning data give a full and exact representation of the building geometry. The article presents different aspects and the benefits of using point clouds in BIM in the different stages of a lifecycle of a building.

  5. Quantum Change Point

    Science.gov (United States)

    Sentís, Gael; Bagan, Emilio; Calsamiglia, John; Chiribella, Giulio; Muñoz-Tapia, Ramon

    2016-10-01

    Sudden changes are ubiquitous in nature. Identifying them is crucial for a number of applications in biology, medicine, and social sciences. Here we take the problem of detecting sudden changes to the quantum domain. We consider a source that emits quantum particles in a default state, until a point where a mutation occurs that causes the source to switch to another state. The problem is then to find out where the change occurred. We determine the maximum probability of correctly identifying the change point, allowing for collective measurements on the whole sequence of particles emitted by the source. Then, we devise online strategies where the particles are measured individually and an answer is provided as soon as a new particle is received. We show that these online strategies substantially underperform the optimal quantum measurement, indicating that quantum sudden changes, although happening locally, are better detected globally.

  6. Pseudocontractions in the intermediate sense: Fixed and best proximity points

    Science.gov (United States)

    De la Sen, Manuel

    2013-09-01

    This paper studies a general contractive condition for a class of two-cyclic self-maps on the union of a finite number of subsets of a metric space which are allowed to have a finite number of successive images in the same subsets of its domain. If the space is uniformly convex and the subsets are non-empty, closed and convex then all the iterated sequences are proved to converge to a unique closed limiting finite sequence. Such a sequence contains the best proximity points of adjacent subsets which coincide with a unique fixed point if all such subsets intersect.

  7. SharePoint Server 2010 Administration 24 Hour Trainer

    CERN Document Server

    Crider, Bill; Richardson, Clint

    2012-01-01

    Get quickly up to speed on SharePoint Server 2010! Covering all aspects of the SharePoint technology, this unique book-and-DVD combination provides expert guidance within each lesson in the book, which is then supplemented on the instructional DVD. The authors expose you to a variety of SharePoint Server 2010 topics, from organization concerns to training plans to programmer best practices, all aimed at helping you effortlessly find your way around SharePoint without a deep knowledge of the technology. You’ll quickly learn to configure and administer a site or site collection using this

  8. Floating point coprocessor upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Weber, T.

    1987-04-01

    A method was developed to increase the throughput of the Hewlett Packard, 98635A floating point processor equipped, model 236C computer. The increase was carried out in three phases each with a clock and or chip change during the modification. Two programs were written to test the results and evaluate the increases in performance made to the computer. The first one shows reduction in processing times of 34.3%, while the other recorded 34.6%.

  9. Pointing a solar telescope

    Science.gov (United States)

    Wallace, Patrick

    2016-07-01

    As far as pointing is concerned, a solar telescope is merely an ordinary astronomical telescope but with enhancements for observing solar and coronal features. The paper discusses the additional coordinate systems that need to be supported, shows how to generate the required solar ephemerides (both orbital and physical), and sets out a suitable application programming interface for the telescope control system to use when making solar observations.

  10. Theorems on Positive Data: On the Uniqueness of NMF

    Directory of Open Access Journals (Sweden)

    Hans Laurberg

    2008-01-01

    Full Text Available We investigate the conditions for which nonnegative matrix factorization (NMF is unique and introduce several theorems which can determine whether the decomposition is in fact unique or not. The theorems are illustrated by several examples showing the use of the theorems and their limitations. We have shown that corruption of a unique NMF matrix by additive noise leads to a noisy estimation of the noise-free unique solution. Finally, we use a stochastic view of NMF to analyze which characterization of the underlying model will result in an NMF with small estimation errors.

  11. Harnessing optical loss for unique microlaser functionality (Conference Presentation)

    Science.gov (United States)

    Feng, Liang

    2017-05-01

    Lasers, as the key driving force in the field of optics and photonics over other photonic components, are now being significantly benefited from the studies of nanophotonics and metamaterials, broadening laser physics and device applications. The properties of light are much more beyond its simple intensity and temporal characteristics. The fruitful nature of light provides a great variety of freedoms in manipulating light for modern photonic applications, including spin (polarization), chirality, angular momentum, and spin-orbit coupling. Unfortunately, all these fundamental properties and functionalities of light have not been fully exploited in micro/nano-laser systems because the conventional principles of laser design in bulk optics cannot be easily scaled down to the micro/nano scale. The capability of creating microlasers with controlled spin/orbital information and chirality in their radiations is expected to revolutionize next generation of photonic systems for computing and communication. In this talk, I will focus on our recent effort in harnessing optical losses for unique microlaser functionalities, in particular, an orbital angular momentum (OAM) microlaser that structure and twist the lasing radiation at the microscale. The effective generation of OAM lasing, especially at a micro/nano-scale, could address the growing demand for information capacity. By exploiting the emerging non-Hermitian photonics design at an exceptional point, we demonstrate a microring laser producing a single-mode OAM vortex lasing with the ability to precisely define the topological charge of the OAM mode and its polarization state. Our OAM microlaser could find applications in the next generation of integrated optoelectronic devices for optical communications.

  12. Building Points - MO 2012 Stoddard Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  13. Building Points - MO 2012 Dunklin Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  14. Building Points - MO 2012 Scott Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  15. Building Points - MO 2012 Pemiscot Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  16. Building Points - MO 2012 New Madrid Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  17. Building Points - MO 2012 Mississippi Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Missouri Structure Points are structure points generated from a two pass look over the 2007 State 2ft imagery. Unlike the structure footprints, the building point...

  18. Genome comparison without alignment using shortest unique substrings

    Directory of Open Access Journals (Sweden)

    Möller Friedrich

    2005-05-01

    Full Text Available Abstract Background Sequence comparison by alignment is a fundamental tool of molecular biology. In this paper we show how a number of sequence comparison tasks, including the detection of unique genomic regions, can be accomplished efficiently without an alignment step. Our procedure for nucleotide sequence comparison is based on shortest unique substrings. These are substrings which occur only once within the sequence or set of sequences analysed and which cannot be further reduced in length without losing the property of uniqueness. Such substrings can be detected using generalized suffix trees. Results We find that the shortest unique substrings in Caenorhabditis elegans, human and mouse are no longer than 11 bp in the autosomes of these organisms. In mouse and human these unique substrings are significantly clustered in upstream regions of known genes. Moreover, the probability of finding such short unique substrings in the genomes of human or mouse by chance is extremely small. We derive an analytical expression for the null distribution of shortest unique substrings, given the GC-content of the query sequences. Furthermore, we apply our method to rapidly detect unique genomic regions in the genome of Staphylococcus aureus strain MSSA476 compared to four other staphylococcal genomes. Conclusion We combine a method to rapidly search for shortest unique substrings in DNA sequences and a derivation of their null distribution. We show that unique regions in an arbitrary sample of genomes can be efficiently detected with this method. The corresponding programs shustring (SHortest Unique subSTRING and shulen are written in C and available at http://adenine.biz.fh-weihenstephan.de/shustring/.

  19. Tipping point leadership.

    Science.gov (United States)

    Kim, W Chan; Mauborgne, Renée

    2003-04-01

    When William Bratton was appointed police commissioner of New York City in 1994, turf wars over jurisdiction and funding were rife and crime was out of control. Yet in less than two years, and without an increase in his budget, Bratton turned New York into the safest large city in the nation. And the NYPD was only the latest of five law-enforcement agencies Bratton had turned around. In each case, he succeeded in record time despite limited resources, a demotivated staff, opposition from powerful vested interests, and an organization wedded to the status quo. Bratton's turnarounds demonstrate what the authors call tipping point leadership. The theory of tipping points hinges on the insight that in any organization, fundamental changes can occur quickly when the beliefs and energies of a critical mass of people create an epidemic movement toward an idea. Bratton begins by overcoming the cognitive hurdles that block organizations from recognizing the need for change. He does this by putting managers face-to-face with operational problems. Next, he manages around limitations on funds, staff, or equipment by concentrating resources on the areas that are most in need of change and that have the biggest payoffs. He meanwhile solves the motivation problem by singling out key influencers--people with disproportionate power due to their connections or persuasive abilities. Finally, he closes off resistance from powerful opponents. Not every CEO has the personality to be a Bill Bratton, but his successes are due to much more than his personality. He relies on a remarkably consistent method that any manager looking to turn around an organization can use to overcome the forces of inertia and reach the tipping point.

  20. Pointing the SOFIA Telescope

    CERN Document Server

    Gross, Michael A K; Moore, Elizabeth M

    2010-01-01

    SOFIA is an airborne, gyroscopically stabilized 2.5m infrared telescope, mounted to a spherical bearing. Unlike its predecessors, SOFIA will work in absolute coordinates, despite its continually changing position and attitude. In order to manage this, SOFIA must relate equatorial and telescope coordinates using a combination of avionics data and star identification, manage field rotation and track sky images. We describe the algorithms and systems required to acquire and maintain the equatorial reference frame, relate it to tracking imagers and the science instrument, set up the oscillating secondary mirror, and aggregate pointings into relocatable nods and dithers.

  1. Ubiquitous Pointing and Drawing

    Directory of Open Access Journals (Sweden)

    Kristian Jantz

    2007-12-01

    Full Text Available This paper presents a system that enables a presenter to work directly on the projection without the typical interruption of the presentation flow being caused by a mouse or keyboard activity. The lecturer simply uses his fingers as a natural and intuitive pointing device. The system consists of an LED, a standard webcam, a video projector, and a small software system running on a notebook computer. The camera is positioned such that it views the projection area. After a few calibration clicks, the mouse emulation is functional at any place of the projection area.

  2. Critical Points of Contact

    DEFF Research Database (Denmark)

    Jensen, Ole B.; Morelli, Nicola

    2011-01-01

    where the networks meet and establish contact. Thus we argue for the usefulness of the notion of Critical Point of Contact (CPC) to deepen our understanding of the actual life within networks. En route to this notion we draw upon theories within as diverse realms such as interaction design, service...... design, geography, and mobility studies. After the introduction in section we develop and define the notion of CPC based upon a broad set of disciplines and theories. We illustrate the usefulness of the notion within the field of mobility in the network city and within the field of service design...

  3. Interior-point methods

    Science.gov (United States)

    Potra, Florian A.; Wright, Stephen J.

    2000-12-01

    The modern era of interior-point methods dates to 1984, when Karmarkar proposed his algorithm for linear programming. In the years since then, algorithms and software for linear programming have become quite sophisticated, while extensions to more general classes of problems, such as convex quadratic programming, semi-definite programming, and nonconvex and nonlinear problems, have reached varying levels of maturity. We review some of the key developments in the area, including comments on both the complexity theory and practical algorithms for linear programming, semi-definite programming, monotone linear complementarity, and convex programming over sets that can be characterized by self-concordant barrier functions.

  4. Existence and Uniqueness of Solution to ODEs: Lipschitz Continuity

    Indian Academy of Sciences (India)

    Swarup Poria; Aman Dhiman

    2017-05-01

    The study of existence and uniqueness of solution of ordinarydifferential equation (ODE) became important due to the lack ofgeneral formula for solving nonlinear ODEs. In this article, weshall discuss briefly about the existence and uniqueness of solutionof a first order ODE. A special emphasis is given on theLipschitz continuous functions in the discussion.

  5. Theorems on Positive Data: On the Uniqueness of NMF

    DEFF Research Database (Denmark)

    Lauerberg, Hans; Christensen, Mads Græsbøll; Pumbley, Mark;

    2008-01-01

    have shown that corruption of a unique NMF matrix by additive noise leads to a noisy estimation of the noise-free unique solution. Finally, we use a stochastic view of NMF to analyze which characterization of the underlying model will result in an NMF with small estimation errors....

  6. Morphological Awareness Uniquely Predicts Young Children's Chinese Character Recognition.

    Science.gov (United States)

    McBride-Chang, Catherine; Shu, Hua; Zhou, Aibao; Wat, Chun Pong; Wagner, Richard K.

    2003-01-01

    Two unique measures of morphological awareness were orally administered to kindergarten and 2nd-grade Hong Kong Chinese children. Both tasks of morphological awareness predicted unique variance in Chinese character recognition in these children, after controlling for age, phonological awareness, speeded naming, speed of processing, and vocabulary.…

  7. Can facial uniqueness be inferred from impostor scores?

    NARCIS (Netherlands)

    Dutta, A.; Veldhuis, Raymond N.J.; Spreeuwers, Lieuwe Jan

    2013-01-01

    In Biometrics, facial uniqueness is commonly inferred from impostor similarity scores. In this paper, we show that such uniqueness measures are highly unstable in the presence of image quality variations like pose, noise and blur. We also experimentally demonstrate the instability of a recently

  8. Unique Protein Signature of Circulating Microparticles in Systemic Lupus Erythematosus

    DEFF Research Database (Denmark)

    Østergaard, Ole; Nielsen, Christoffer; Iversen, Line V

    2013-01-01

    To characterize the unique qualities of proteins associated with circulating subcellular material in systemic lupus erythematosus (SLE) patients compared with healthy controls and patients with other chronic autoimmune diseases.......To characterize the unique qualities of proteins associated with circulating subcellular material in systemic lupus erythematosus (SLE) patients compared with healthy controls and patients with other chronic autoimmune diseases....

  9. Uniqueness of limiting solution to a strongly competing system

    Directory of Open Access Journals (Sweden)

    Avetik Arakelyan

    2017-04-01

    Full Text Available We prove a uniqueness for the positive solution to a strongly competing system of Lotka-Volterra type problem in the limiting configuration, when the competition rate tends to infinity. We give an alternate proof of uniqueness based on properties of limiting solutions.

  10. The Uniqueness of Optimal Solution for Linear Programming Problem

    Institute of Scientific and Technical Information of China (English)

    QuanlingWei; HongYan; JunWang

    2004-01-01

    This paper investigates an old problem in operations research, the uniqueness of the optimal solution to a linear programming problem. We discuss the problem on a general polyhedron, give some equivalent conditions for uniqueness testing. In addition, we discuss the implementation issues for linear programming based decision making procedures,which motivated this research.

  11. SPIRE Point Source Photometry

    CERN Document Server

    Pearson, Chris; North, Chris; Bendo, George; Conversi, Luca; Dowell, Darren; Griffin, Matt; Jin, Terry; Laporte, Nicolas; Papageorgiou, Andreas; Schulz, Bernhard; Shupe, Dave; Smith, Anthony J; Xu, Kevin

    2014-01-01

    The different algorithms appropriate for point source photometry on data from the SPIRE instrument on-board the Herschel Space Observatory, within the Herschel Interactive Processing Environment (HIPE) are compared. Point source photometry of a large ensemble of standard calibration stars and dark sky observations is carried out using the 4 major methods within HIPE: SUSSEXtractor, DAOphot, the SPIRE Timeline Fitter and simple Aperture Photometry. Colour corrections and effective beam areas as a function of the assumed source spectral index are also included to produce a large number of photometric measurements per individual target, in each of the 3 SPIRE bands (250, 350, 500um), to examine both the accuracy and repeatability of each of the 4 algorithms. It is concluded that for flux densities down to the level of 30mJy that the SPIRE Timeline Fitter is the method of choice. However, at least in the 250 and 350um bands, all 4 methods provide photometric repeatability better than a few percent down to at appr...

  12. Relative Critical Points

    Directory of Open Access Journals (Sweden)

    Debra Lewis

    2013-05-01

    Full Text Available Relative equilibria of Lagrangian and Hamiltonian systems with symmetry are critical points of appropriate scalar functions parametrized by the Lie algebra (or its dual of the symmetry group. Setting aside the structures – symplectic, Poisson, or variational – generating dynamical systems from such functions highlights the common features of their construction and analysis, and supports the construction of analogous functions in non-Hamiltonian settings. If the symmetry group is nonabelian, the functions are invariant only with respect to the isotropy subgroup of the given parameter value. Replacing the parametrized family of functions with a single function on the product manifold and extending the action using the (coadjoint action on the algebra or its dual yields a fully invariant function. An invariant map can be used to reverse the usual perspective: rather than selecting a parametrized family of functions and finding their critical points, conditions under which functions will be critical on specific orbits, typically distinguished by isotropy class, can be derived. This strategy is illustrated using several well-known mechanical systems – the Lagrange top, the double spherical pendulum, the free rigid body, and the Riemann ellipsoids – and generalizations of these systems.

  13. Relative Critical Points

    Science.gov (United States)

    Lewis, Debra

    2013-05-01

    Relative equilibria of Lagrangian and Hamiltonian systems with symmetry are critical points of appropriate scalar functions parametrized by the Lie algebra (or its dual) of the symmetry group. Setting aside the structures - symplectic, Poisson, or variational - generating dynamical systems from such functions highlights the common features of their construction and analysis, and supports the construction of analogous functions in non-Hamiltonian settings. If the symmetry group is nonabelian, the functions are invariant only with respect to the isotropy subgroup of the given parameter value. Replacing the parametrized family of functions with a single function on the product manifold and extending the action using the (co)adjoint action on the algebra or its dual yields a fully invariant function. An invariant map can be used to reverse the usual perspective: rather than selecting a parametrized family of functions and finding their critical points, conditions under which functions will be critical on specific orbits, typically distinguished by isotropy class, can be derived. This strategy is illustrated using several well-known mechanical systems - the Lagrange top, the double spherical pendulum, the free rigid body, and the Riemann ellipsoids - and generalizations of these systems.

  14. Reassessing Function Points

    Directory of Open Access Journals (Sweden)

    G.R. Finnie

    1997-05-01

    Full Text Available Accurate estimation of the size and development effort for software projects requires estimation models which can be used early enough in the development life cycle to be of practical value. Function Point Analysis (FPA has become possibly the most widely used estimation technique in practice. However the technique was developed in the data processing environment of the 1970's and, despite undergoing considerable reassessment and formalisation, still attracts criticism for the weighting scoring it employs and for the way in which the function point score is adapted for specific system characteristics. This paper reviews the validity of the weighting scheme and the value of adjusting for system characteristics by studying their effect in a sample of 299 software developments. In general the value adjustment scheme does not appear to cater for differences in productivity. The weighting scheme used to adjust system components in terms of being simple, average or complex also appears suspect and should be redesigned to provide a more realistic estimate of system functionality.

  15. Homometric Point Sets and Inverse Problems

    CERN Document Server

    Grimm, Uwe

    2008-01-01

    The inverse problem of diffraction theory in essence amounts to the reconstruction of the atomic positions of a solid from its diffraction image. From a mathematical perspective, this is a notoriously difficult problem, even in the idealised situation of perfect diffraction from an infinite structure. Here, the problem is analysed via the autocorrelation measure of the underlying point set, where two point sets are called homometric when they share the same autocorrelation. For the class of mathematical quasicrystals within a given cut and project scheme, the homometry problem becomes equivalent to Matheron's covariogram problem, in the sense of determining the window from its covariogram. Although certain uniqueness results are known for convex windows, interesting examples of distinct homometric model sets already emerge in the plane. The uncertainty level increases in the presence of diffuse scattering. Already in one dimension, a mixed spectrum can be compatible with structures of different entropy. We ex...

  16. An Extension of Gregus Fixed Point Theorem

    Directory of Open Access Journals (Sweden)

    J. O. Olaleru

    2007-03-01

    Full Text Available Let C be a closed convex subset of a complete metrizable topological vector space (X,d and T:C→C a mapping that satisfies d(Tx,Ty≤ad(x,y+bd(x,Tx+cd(y,Ty+ed(y,Tx+fd(x,Ty for all x,y∈C, where 0unique fixed point. The above theorem, which is a generalization and an extension of the results of several authors, is proved in this paper. In addition, we use the Mann iteration to approximate the fixed point of T.

  17. Some fixed point theorems for multivalued maps in ordered Banach spaces and applications

    Directory of Open Access Journals (Sweden)

    Zhai Chengbo

    2005-01-01

    Full Text Available The existence of maximal and minimal fixed points for various set-valued operators is discussed. This paper presents some new fixed point theorems in ordered Banach spaces. A necessary and sufficient condition for the existence of the fixed point to a class of multivalued maps has been obtained. The uniqueness of the positive fixed point has been discussed. The results extend and improve the corresponding results. As an application, we utilize the results to study the existence and uniqueness of positive fixed points for a class of convex operators. In the end, we give a simple application to certain integral equations.

  18. Point Source Extraction with MOPEX

    CERN Document Server

    Marleau, D M F R

    2005-01-01

    MOPEX (MOsaicking and Point source EXtraction) is a package developed at the Spitzer Science Center for astronomical image processing. We report on the point source extraction capabilities of MOPEX. Point source extraction is implemented as a two step process: point source detection and profile fitting. Non-linear matched filtering of input images can be performed optionally to increase the signal-to-noise ratio and improve detection of faint point sources. Point Response Function (PRF) fitting of point sources produces the final point source list which includes the fluxes and improved positions of the point sources, along with other parameters characterizing the fit. Passive and active deblending allows for successful fitting of confused point sources. Aperture photometry can also be computed for every extracted point source for an unlimited number of aperture sizes. PRF is estimated directly from the input images. Implementation of efficient methods of background and noise estimation, and modified Simplex a...

  19. September 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Dana Point to Point La...

  20. May 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Dana Point to Point La...

  1. September 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Dana Point to Point...

  2. Finding critical points whose polarization is also a critical point

    OpenAIRE

    Squassina, Marco; Van Schaftingen, Jean

    2011-01-01

    We show that near any given minimizing sequence of paths for the mountain pass lemma, there exists a critical point whose polarization is also a critical point. This is motivated by the fact that if any polarization of a critical point is also a critical point and the Euler-Lagrange equation is a second-order semi-linear elliptic problem, T. Bartsch, T. Weth and M. Willem (J. Anal. Math., 2005) have proved that the critical point is axially symmetric.

  3. The Point Mass Concept

    Directory of Open Access Journals (Sweden)

    Lehnert B.

    2011-04-01

    Full Text Available A point-mass concept has been elaborated from the equations of the gravitational field. One application of these deductions results in a black hole configuration of the Schwarzschild type, having no electric charge and no angular momentum. The critical mass of a gravitational collapse with respect to the nuclear binding energy is found to be in the range of 0.4 to 90 solar masses. A second application is connected with the spec- ulation about an extended symmetric law of gravitation, based on the options of positive and negative mass for a particle at given positive energy. This would make masses of equal polarity attract each other, while masses of opposite polarity repel each other. Matter and antimatter are further proposed to be associated with the states of positive and negative mass. Under fully symmetric conditions this could provide a mechanism for the separation of antimatter from matter at an early stage of the universe.

  4. Virtual turning points

    CERN Document Server

    Honda, Naofumi; Takei, Yoshitsugu

    2015-01-01

    The discovery of a virtual turning point truly is a breakthrough in WKB analysis of higher order differential equations. This monograph expounds the core part of its theory together with its application to the analysis of higher order Painlevé equations of the Noumi–Yamada type and to the analysis of non-adiabatic transition probability problems in three levels. As M.V. Fedoryuk once lamented, global asymptotic analysis of higher order differential equations had been thought to be impossible to construct. In 1982, however, H.L. Berk, W.M. Nevins, and K.V. Roberts published a remarkable paper in the Journal of Mathematical Physics indicating that the traditional Stokes geometry cannot globally describe the Stokes phenomena of solutions of higher order equations; a new Stokes curve is necessary.

  5. The Temporal Tipping Point

    DEFF Research Database (Denmark)

    Hermann, A. K.

    2016-01-01

    “Slow journalism” is a term anthropologist and sociologists sometimes use to describe their empirical work, ethnography. To journalists and media observers, meanwhile, “slow journalism” signifies a newfound dedication to serious long-form journalism. Not surprisingly, thus, “ethnographic journalism......”—a genre where reporters adopt research strategies from social science—takes “slow” to the extreme. Immersing themselves in communities for weeks, months and years, ethnographic journalists seek to gain what anthropologists call “the native's point of view”. Based on in-depth interviews with practitioners...... and analyses of their journalistic works, this paper offers a study of ethnographic journalism suggesting that slow time operates in at least three separate registers. First, in terms of regimentation, ethnographic journalism is mostly long-form pieces that demand time-consuming research and careful writing...

  6. Repelling Point Bosons

    Science.gov (United States)

    McGuire, J. B.

    2011-12-01

    There is a body of conventional wisdom that holds that a solvable quantum problem, by virtue of its solvability, is pathological and thus irrelevant. It has been difficult to refute this view owing to the paucity of theoretical constructs and experimental results. Recent experiments involving equivalent ions trapped in a spatial conformation of extreme anisotropic confinement (longitudinal extension tens, hundreds or even thousands of times transverse extension) have modified the view of relevancy, and it is now possible to consider systems previously thought pathological, in particular point Bosons that repel in one dimension. It has been difficult for the experimentalists to utilize existing theory, mainly due to long-standing theoretical misunderstanding of the relevance of the permutation group, in particular the non-commutativity of translations (periodicity) and transpositions (permutation). This misunderstanding is most easily rectified in the case of repelling Bosons.

  7. Latent myofascial trigger points.

    Science.gov (United States)

    Ge, Hong-You; Arendt-Nielsen, Lars

    2011-10-01

    A latent myofascial trigger point (MTP) is defined as a focus of hyperirritability in a muscle taut band that is clinically associated with local twitch response and tenderness and/or referred pain upon manual examination. Current evidence suggests that the temporal profile of the spontaneous electrical activity at an MTP is similar to focal muscle fiber contraction and/or muscle cramp potentials, which contribute significantly to the induction of local tenderness and pain and motor dysfunctions. This review highlights the potential mechanisms underlying the sensory-motor dysfunctions associated with latent MTPs and discusses the contribution of central sensitization associated with latent MTPs and the MTP network to the spatial propagation of pain and motor dysfunctions. Treating latent MTPs in patients with musculoskeletal pain may not only decrease pain sensitivity and improve motor functions, but also prevent latent MTPs from transforming into active MTPs, and hence, prevent the development of myofascial pain syndrome.

  8. Solution of fractional differential equations via coupled fixed point

    Directory of Open Access Journals (Sweden)

    Hojjat Afshari

    2015-11-01

    Full Text Available In this article, we investigate the existence and uniqueness of a solution for the fractional differential equation by introducing some new coupled fixed point theorems for the class of mixed monotone operators with perturbations in the context of partially ordered complete metric space.

  9. Inflection-point B -L Higgs inflation

    Science.gov (United States)

    Okada, Nobuchika; Raut, Digesh

    2017-02-01

    Inflection-point inflation is an interesting possibility to realize a successful slow-roll inflation when inflation is driven by a single scalar field with its initial value below the Planck mass (ϕI≲MPl). In order for a renormalization group (RG) improved effective λ ϕ4 potential to develop an inflection point, the quartic coupling λ (ϕ ) must exhibit a minimum with an almost vanishing value in its RG evolution, namely λ (ϕI)≃0 and βλ(ϕI)≃0 , where βλ is the beta function of the quartic coupling. As an example, we consider the minimal gauged B -L extended Standard Model at the TeV scale, where we identify the B -L Higgs field as the inflaton field. For a successful inflection-point inflation, which is consistent with the current cosmological observations, the mass ratios among the Z' gauge boson, the right-handed neutrinos and the B -L Higgs boson are fixed. Our scenario can be tested in the future collider experiments such as the high-luminosity LHC and the SHiP experiments. In addition, the inflection-point inflation provides a unique prediction for the running of the spectral index α ≃-2.7 ×10-3(60/N) 2 (N is the e -folding number), which can be tested in the near future.

  10. Existence and uniqueness of positive solutions of semilinear elliptic equations

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    This paper is devoted to the study of existence,uniqueness and non-degeneracy of positive solutions of semi-linear elliptic equations.A necessary and sufficient condition for the existence of positive solutions to problems is given.We prove that if the uniqueness and non-degeneracy results are valid for positive solutions of a class of semi-linear elliptic equations,then they are still valid when one perturbs the differential operator a little bit.As consequences,some uniqueness results of positive solutions under the domain perturbation are also obtained.

  11. Existence and uniqueness of positive solutions of semilinear elliptic equations

    Institute of Scientific and Technical Information of China (English)

    Qiu-yi DAI; Yu-xia FU; Yong-geng GU

    2007-01-01

    This paper is devoted to the study of existence, uniqueness and non-degeneracy of positive solutions of semi-linear elliptic equations. A necessary and sufficient condition for the existence of positive solutions to problems is given. We prove that if the uniqueness and non-degeneracy results are valid for positive solutions of a class of semi-linear elliptic equations, then they are still valid when one perturbs the differential operator a little bit. As consequences, some uniqueness results of positive solutions under the domain perturbation are also obtained.

  12. The Unique Destination Proposition of Eskisehir: Industrial Heritage

    Directory of Open Access Journals (Sweden)

    Hakan Yılmaz

    2014-12-01

    Full Text Available This paper examines the transformation of Unique Sales Proposition (USP concept which is one of the most important strategies of advertising history, to the Unique Destination Proposition (UDP for the case of Eskisehir. This study aims to propose industrial heritage as the UDP of Eskisehir by a descriptive approach. Industrial heritage helps Eskisehir destination brand to attain a meaningful, sustainable and distinctive dimension from its competitors. The current industrial heritage samples of Eskisehir were initially evaluated in this context. Subsequently, in the focus of the relation between industrial heritage and tourism, an excursion route and a tour program is suggested including the unique industrial heritage values of Eskisehir.

  13. Uniqueness from pointwise observations in a multi-parameter inverse problem

    CERN Document Server

    Cristofol, Michel; Hamel, Francois; Roques, Lionel

    2011-01-01

    In this paper, we prove a uniqueness result in the inverse problem of determining several non-constant coefficients of one-dimensional reaction-diffusion equations. Such reaction-diffusion equations include the classical model of Kolmogorov, Petrovsky and Piskunov as well as more sophisticated models from biology. When the reaction term contains an unknown polynomial part of degree $N,$ with non-constant coefficients $\\mu_k(x),$ our result gives a sufficient condition for the uniqueness of the determination of this polynomial part. This sufficient condition only involves pointwise measurements of the solution $u$ of the reaction-diffusion equation and of its spatial derivative $\\partial u / \\partial x$ at a single point $x_0,$ during a time interval $(0,\\epsilon).$ In addition to this uniqueness result, we give several counter-examples to uniqueness, which emphasize the optimality of our assumptions. Finally, in the particular cases N=2 and $N=3,$ we show that such pointwise measurements can allow an efficien...

  14. A New Approach for the Approximations of Solutions to a Common Fixed Point Problem in Metric Fixed Point Theory

    Directory of Open Access Journals (Sweden)

    Ishak Altun

    2016-01-01

    Full Text Available We provide sufficient conditions for the existence of a unique common fixed point for a pair of mappings T,S:X→X, where X is a nonempty set endowed with a certain metric. Moreover, a numerical algorithm is presented in order to approximate such solution. Our approach is different to the usual used methods in the literature.

  15. Nonlinear independent component analysis: Existence and uniqueness results.

    Science.gov (United States)

    Hyvärinen, Aapo; Pajunen, Petteri

    1999-04-01

    The question of existence and uniqueness of solutions for nonlinear independent component analysis is addressed. It is shown that if the space of mixing functions is not limited there exists always an infinity of solutions. In particular, it is shown how to construct parameterized families of solutions. The indeterminacies involved are not trivial, as in the linear case. Next, it is shown how to utilize some results of complex analysis to obtain uniqueness of solutions. We show that for two dimensions, the solution is unique up to a rotation, if the mixing function is constrained to be a conformal mapping together with some other assumptions. We also conjecture that the solution is strictly unique except in some degenerate cases, as the indeterminacy implied by the rotation is essentially similar to estimating the model of linear ICA.

  16. Uniqueness and existence results for ordinary differential equations

    Science.gov (United States)

    Cid, J. Angel; Heikkila, Seppo; Pouso, Rodrigo Lopez

    2006-04-01

    We establish some uniqueness and existence results for first-order ordinary differential equations with constant-signed discontinuous nonlinear parts. Several examples are given to illustrate the applicability of our work.

  17. Unique Role of Occupational Therapy in Rehabilitation of the Hand

    Science.gov (United States)

    ... Sheet The Unique Role of Occupational Therapy in Rehabilitation of the Hand Hand therapy, a specialty practice area of occupational ... are treated by occupational therapy practitioners specializing in hand rehabilitation. Practitioners who treat clients with conditions of the ...

  18. Novel Manufacturing Process for Unique Mixed Carbide Refractory Composites Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This STTR Phase I project will establish the feasibility of an innovative manufacturing process to fabricate a range of unique hafnium/silicon based carbide...

  19. Existence and Uniqueness of Solutions to Random Impulsive Differential Systems

    Institute of Scientific and Technical Information of China (English)

    Shu-jin Wu; Xiao-lin Guo; Song-qing Lin

    2006-01-01

    The existence and uniqueness in mean square of solutions to certain random impulsive differential systems is discussed in this paper. Cauchy-Schwarz inequality, Lipschtiz condition and techniques in stochastic analysis are employed in achieve the desired results.

  20. On the development of uniquely African management theory ...

    African Journals Online (AJOL)

    On the development of uniquely African management theory. ... Indilinga: African Journal of Indigenous Knowledge Systems. Journal Home · ABOUT · Advanced Search · Current ... Open Access DOWNLOAD FULL TEXT Subscription or Fee ...

  1. AN ANALYTICAL APPROACH TO GENERATE UNIQUE SONG SIGNAL (AUSS

    Directory of Open Access Journals (Sweden)

    Uttam Kr. Mondal

    2013-02-01

    Full Text Available Embedding uniqueness in characteristics of song signal and accustoming changes of environment is one of the challenging issues for researchers with maintaining its audible quality. Researchers are modifying or manipulating audio signal properties for generating uniqueness in content such a manner that will not vary so much in changed environment or changes can be easily defined due to unique structure of song signal. In this paper, an approach has been made based on defining a symmetric structure of song signal, followed by some secret code embedding in a specified manner will not alter the trade off ratio of embedding/modifying data but provide uniqueness in properties, even retain the properties in changing environment/ format. Therefore, authentication of song signal is easily achieved with these self manipulated properties. A comparative study has been made with similar existing techniques and experimental results are also supported with mathematical formula based on Microsoft WAVE (".wav" stereo sound file.

  2. Unique morphology of dispersed clay particles in a polymer nanocomposite

    CSIR Research Space (South Africa)

    Malwela, T

    2011-02-01

    Full Text Available This communication reports a unique morphology of dispersed clay particles in a polymer nanocomposite. A nanocomposite of poly[butylene succinate)-co-adipate] (PBSA) with 3 wt% of organically modified montmorillonite was prepared by melt...

  3. UNIQUENESS OF SOLUTIONS FOR SEMICONDUCTOR EQUATIONS WITH AVALANCHE TERM

    Institute of Scientific and Technical Information of China (English)

    Xing Jiasheng; Wang Yuanming

    2000-01-01

    In this paper, we consider the initial and mixed boundary value problems for the semiconductor equations with avalanche term, the uniqueness of the weak solution for the semiconductor equation has been proved.

  4. Milk and dairy products: a unique micronutrient combination.

    Science.gov (United States)

    Gaucheron, Frédéric

    2011-10-01

    doubt of the significant contribution of milk and dairy products to the intake of vitamins. Milk and dairy are considered essential sources for vitamins. Key teaching points: Milk and dairy products are unique micronutrient combinations with recognized health benefits. The concentration, chemical forms, and location of different minerals are relatively well known and described. For example, Ca is present in dairy products in different forms: free, associated with citrate, inorganic and organic phosphates, and free fatty acids. Milk and dairy products are excellent sources of Ca, P, Mg, Zn, and Se. The concentration of vitamins in milk and dairy products is variable and depends on several factors such as biosynthesis, animal feeding, physicochemical conditions (heat, light, O(2), oxidant agents), and analytical methods for their determinations. Vitamins A, D, E, and K are mainly located in the lipid phase and vitamins of group B and C in the aqueous phase. Milk and dairy products are excellent sources of vitamins A, B(1), B(2), and B(12).

  5. ATLAS Point 1 Construction

    CERN Multimedia

    Inigo-Golfin, J

    After 3 years of work in point 1, a number of surface buildings have already been completed and handed over to CERN (the control, the gas and the cooling and ventilation buildings) and, probably more appealing to the public, 60,000 m3 of earth have already been excavated from underground. At present, the technical cavern USA15 and its access shaft are almost finished, leaving only the main cavern and the liaison galleries to be completed in the coming year and a half. The main cavern has been excavated down to the radiation limit and its walls and vault will presently be concreted (see below the picture of the section of the vault with the impressive shell of 1.2 m thickness). The excavation of the bench (27 vertical metres to go yet!) will proceed from August, when some additional civil engineering work in the LHC tunnel will be undertaken. Needless to say many different services are necessary around the detector, both for its installation and future operation for physics. To that end much of the heavy...

  6. Point 1 Updates

    CERN Multimedia

    Inigo-Golfin, J.

    The ATLAS experimental area is located in Point 1, just across the main CERN entrance, in the commune of Meyrin. There people are ever so busy to finish the different infrastructures for ATLAS. Not only has Civil Engineering finished the construction of the USA15 technical cavern, but the excavation of the main UX15 cavern has resumed below the machine tunnel, after a brief halt to allow the construction of the UJ-caverns for the power converters of the LHC machine. The excavation work should end in August 2002. The UX15 hand-over to ATLAS is expected in April 2003. On the surface civil engineering is starting to complete the last two surface buildings (SDX1 and SH1), once the services (cooling pipes, ventilation ducts and the largest item, the lift modules and its lift of course) in the shaft PX15 have been completed. But the civil engineering is not all. A lot more is under way. The site installation of the steel structures in the caverns is to begin in Autumn, along with all the cooling pipes, airconditi...

  7. "Point de suspension"

    CERN Multimedia

    2004-01-01

    CERN - Globe of Science and Innovation 20 and 21 October Acrobatics, mime, a cappella singing, projections of images, a magical setting... a host of different tools of a grandeur matching that of the Universe they relate. A camera makes a massive zoom out to reveal the multiple dimensions of Nature. Freeze the frame: half way between the infinitesimally small and the infinitesimally large, a man suspends his everyday life (hence the title "Point de Suspension", which refers to the three dots at the end of an uncompleted sentence) to take a glimpse of the place he occupies in the great history of the Universe. An unusual perspective on what it means to be a human being... This spectacle in the Globe of Science and Innovation, specially created by the Miméscope* company for the official ceremony marking CERN's fiftieth anniversary, is a gift from the Government of the Republic and Canton of Geneva, which also wishes to share this moment of wonder with the local population. There will be three performances for...

  8. "Point de suspension"

    CERN Multimedia

    2004-01-01

    CERN - Globe of Science and Innovation 20 and 21 October Acrobatics, mime, a cappella singing, projections of images, a magical setting... a host of different tools of a grandeur matching that of the Universe they relate. A camera makes a massive zoom out to reveal the multiple dimensions of Nature. Freeze the frame: half way between the infinitesimally small and the infinitesimally large, a man suspends his everyday life (hence the title "Point de Suspension", which refers to the three dots at the end of an uncompleted sentence) to take a glimpse of the place he occupies in the great history of the Universe. An unusual perspective on what it means to be a human being... This wondrous show in the Globe of Science and Innovation, specially created by the Miméscope* company for the official ceremony marking CERN's fiftieth anniversary, is a gift from the Government of the Republic and Canton of Geneva, which also wishes to share this moment of wonder with the local population. There will be three perfo...

  9. "Point de suspension"

    CERN Multimedia

    2004-01-01

    http://www.cern.ch/cern50/ CERN - Globe of Science and Innovation 20 and 21 October Acrobatics, mime, a cappella singing, projections of images, a magical setting... a host of different tools of a grandeur matching that of the Universe they relate. A camera makes a massive zoom out to reveal the multiple dimensions of Nature. Freeze the frame: half way between the infinitesimally small and the infinitesimally large, a man suspends his everyday life (hence the title "Point de Suspension", which refers to the three dots at the end of an uncompleted sentence) to take a glimpse of the place he occupies in the great history of the Universe. An unusual perspective on what it means to be a human being... This wondrous show in the Globe of Science and Innovation, specially created by the Miméscope* company for the official ceremony marking CERN's fiftieth anniversary, is a gift from the Government of the Republic and Canton of Geneva, which also wishes to share this moment of wonder with the local pop...

  10. Investigation of unique hue setting changes with ageing

    Institute of Scientific and Technical Information of China (English)

    Chenyang Fu; Kaida Xiao; Dimosthenis Karatzas; Sophie Wuerger

    2011-01-01

    Clromatic sensitivity along the protan, deutan, and tritan lines and the loci of the unique hues (red, green,yellow, blue) for a very large sample (n = 185) of colour-normal observers ranging from 18 to 75 years of age are assessed. Visual judgments are obtained under normal viewing conditions using colour patches on self-luminous display under controlled adaptation conditions. Trivector discrimination thresholds show an increase as a function of age along the protan, deutan, and tritan axes, with the largest increase present along the tritan line, less pronounced shifts in unique hue settings are also observed. Based on the chromatic (protan, deutan, tritan) thresholds and using scaled cone signals, we predict the unique hue changes with ageing. A dependency on age for unique red and unique yellow for predicted hue angle is found. We conclude that the chromatic sensitivity deteriorates significantly with age, whereas the appearance of unique hues is much less affected, remaining almost constant despite the known changes in the ocular media.%@@ Clromatic sensitivity along the protan, deutan, and tritan lines and the loci of the unique hues (red, green,yellow, blue) for a very large sample (n = 185) of colour-normal observers ranging from 18 to 75 years of age are assessed.Visual judgments are obtained under normal viewing conditions using colour patches on self-luminous display under controlled adaptation conditions.Trivector discrimination thresholds show an increase as a function of age along the protan, deutan, and tritan axes, with the largest increase present along the tritan line, less pronounced shifts in unique hue settings are also observed.

  11. Euler equation existence, non-uniqueness and mesh converged statistics.

    Science.gov (United States)

    Glimm, James; Sharp, David H; Lim, Hyunkyung; Kaufman, Ryan; Hu, Wenlin

    2015-09-13

    We review existence and non-uniqueness results for the Euler equation of fluid flow. These results are placed in the context of physical models and their solutions. Non-uniqueness is in direct conflict with the purpose of practical simulations, so that a mitigating strategy, outlined here, is important. We illustrate these issues in an examination of mesh converged turbulent statistics, with comparison to laboratory experiments.

  12. Limit theorem and uniqueness theorem of backward stochastic differential equations

    Institute of Scientific and Technical Information of China (English)

    JIANG; Long

    2006-01-01

    This paper establishes a limit theorem for solutions of backward stochastic differential equations (BSDEs). By this limit theorem, this paper proves that, under the standard assumption g(t,y,0)≡0, the generator g of a BSDE can be uniquely determined by the corresponding g-expectation εg; this paper also proves that if a filtration consistent expectation ε can be represented as a g-expectation εg, then the corresponding generator g must be unique.

  13. Generic uniqueness conditions for the canonical polyadic decomposition and INDSCAL

    OpenAIRE

    Domanov, Ignat; De Lathauwer, Lieven

    2014-01-01

    We find conditions that guarantee that a decomposition of a generic third-order tensor in a minimal number of rank-$1$ tensors (canonical polyadic decomposition (CPD)) is unique up to permutation of rank-$1$ tensors. Then we consider the case when the tensor and all its rank-$1$ terms have symmetric frontal slices (INDSCAL). Our results complement the existing bounds for generic uniqueness of the CPD and relax the existing bounds for INDSCAL. The derivation makes use of algebraic geometry. We...

  14. Practical relevance of pattern uniqueness in forensic science.

    Science.gov (United States)

    Jayaprakash, Paul T

    2013-09-10

    Uniqueness being unprovable, it has recently been argued that individualization in forensic science is irrelevant and, probability, as applied for DNA profiles, should be applied for all identifications. Critiques against uniqueness have omitted physical matching, a realistic and tangible individualization that supports uniqueness. Describing case examples illustrating pattern matches including physical matching, it is indicated that individualizations are practically relevant for forensic science as they establish facts on a definitive basis providing firm leads benefitting criminal investigation. As a tenet of forensic identification, uniqueness forms a fundamental paradigm relevant for individualization. Evidence on the indeterministic and stochastic causal pathways of characteristics in patterns available in the related fields of science sufficiently supports the proposition of uniqueness. Characteristics involved in physical matching and matching achieved in patterned evidence existing in the state of nature are not events amenable for counting; instead these are ensemble of visible units occupying the entire pattern area stretching the probability of re-occurrence of a verisimilitude pattern into infinity offering epistemic support to uniqueness. Observational methods are as respectable as instrumental or statistical methods since they are capable of generating results that are tangible and obviously valid as in physical matching. Applying the probabilistic interpretation used for DNA profiles to the other patterns would be unbefitting since these two are disparate, the causal pathways of the events, the loci, in the manipulated DNA profiles being determinable. While uniqueness enables individualizations, it does not vouch for eliminating errors. Instead of dismissing uniqueness and individualization, accepting errors as human or system failures and seeking remedial measures would benefit forensic science practice and criminal investigation.

  15. Denture identification using unique identification authority of India barcode

    Directory of Open Access Journals (Sweden)

    Sudhindra Mahoorkar

    2013-01-01

    Full Text Available Over the years, various denture marking systems have been reported in the literature for personal identification. They have been broadly divided into surface marking and inclusion methods. In this technique, patient′s unique identification number and barcode printed in the patient′s Aadhaar card issued by Unique Identification Authority of India (UIDAI are used as denture markers. This article describes a simple, quick, and economical method for identification of individual.

  16. Unique Measure for Time-Dependent Random Dynamical Systems

    OpenAIRE

    Varner, Gregory

    2016-01-01

    This paper proves the uniqueness of measure for the two-dimensional Navier-Stokes equations under a random kick-force and a time-dependent deterministic force. By extending a result for uniqueness of measure for time-homogeneous Markov processes to the time-inhomogeneous case, it is shown that the measures are exponentially mixing for the 2D Navier-Stokes equations on the sphere.

  17. Existence and Uniqueness of Positive Solution for Discrete Multipoint Boundary Value Problems.

    Science.gov (United States)

    Ma, Huili; Ma, Huifang

    2014-01-01

    It is expected in this paper to investigate the existence and uniqueness of positive solution for the following difference equation: -Δ(2) u(t - 1) = f(t, u(t)) + g(t, u(t)), t ∈ ℤ 1,  T , subject to boundary conditions either u(0) - βΔu(0) = 0, u(T + 1) = αu(η) or Δu(0) = 0, u(T + 1) = αu(η), where 0 0,  and η ∈ ℤ 2,T-1. The proof of the main result is based upon a fixed point theorem of a sum operator. It is expected in this paper not only to establish existence and uniqueness of positive solution, but also to show a way to construct a series to approximate it by iteration.

  18. On existence and uniqueness of positive solutions to a class of fractional boundary value problems

    Directory of Open Access Journals (Sweden)

    Caballero J

    2011-01-01

    Full Text Available Abstract The purpose of this paper is to investigate the existence and uniqueness of positive solutions for the following fractional boundary value problem D 0 + α u ( t + f ( t , u ( t = 0 , 0 < t < 1 , u ( 0 = u ( 1 = u ′ ( 0 = 0 , where 2 < α ≤ 3 and D 0 + α is the Riemann-Liouville fractional derivative. Our analysis relies on a fixed-point theorem in partially ordered metric spaces. The autonomous case of this problem was studied in the paper [Zhao et al., Abs. Appl. Anal., to appear], but in Zhao et al. (to appear, the question of uniqueness of the solution is not treated. We also present some examples where we compare our results with the ones obtained in Zhao et al. (to appear. 2010 Mathematics Subject Classification: 34B15

  19. Design for robustness of unique, multi-component engineering systems

    Science.gov (United States)

    Shelton, Kenneth A.

    2007-12-01

    The purpose of this research is to advance the science of conceptual designing for robustness in unique, multi-component engineering systems. Robustness is herein defined as the ability of an engineering system to operate within a desired performance range even if the actual configuration has differences from specifications within specified tolerances. These differences are caused by three sources, namely manufacturing errors, system degradation (operational wear and tear), and parts availability. Unique, multi-component engineering systems are defined as systems produced in unique or very small production numbers. They typically have design and manufacturing costs on the order of billions of dollars, and have multiple, competing performance objectives. Design time for these systems must be minimized due to competition, high manpower costs, long manufacturing times, technology obsolescence, and limited available manpower expertise. Most importantly, design mistakes cannot be easily corrected after the systems are operational. For all these reasons, robustness of these systems is absolutely critical. This research examines the space satellite industry in particular. Although inherent robustness assurance is absolutely critical, it is difficult to achieve in practice. The current state of the art for robustness in the industry is to overdesign components and subsystems with redundancy and margin. The shortfall is that it is not known if the added margins were either necessary or sufficient given the risk management preferences of the designer or engineering system customer. To address this shortcoming, new assessment criteria to evaluate robustness in design concepts have been developed. The criteria are comprised of the "Value Distance", addressing manufacturing errors and system degradation, and "Component Distance", addressing parts availability. They are based on an evolutionary computation format that uses a string of alleles to describe the components in the

  20. Photons uniques indiscernables à partir d'une boîte quantique unique dans un cristal photonique

    Science.gov (United States)

    Laurent, S.; Varoutsis, S.; Le Gratiet, L.; Lemaître, A.; Sagnes, I.; Raineri, F.; Levenson, A.; Robert-Philip, I.; Abram, I.

    2006-10-01

    Nous avons développé et caractérisé une source de photons uniques basée sur l'émission spontanée d'une boîte quantique unique insérée dans une cavité à bande interdite photonique bidimensionnelle. Ce système nous a d'abord permis de produire des photons uniques, puis des photons uniques indiscernables avec une indiscernabilité supérieure à 70%. L'observation de l'indiscernabilité des photons, impossible sans un raccourcissement important de la durée de vie, met en évidence un effet Purcell supérieur à 25 dans ce système.

  1. Unique Signal mathematical analysis task group FY03 status report.

    Energy Technology Data Exchange (ETDEWEB)

    Baty, Roy Stuart (Los Alamos National Laboratory, Los Alamos, NM); Johnston, Anna Marie; Hart, Elizabeth (Utah State University, Logan, UT); White, Allan (NASA, Langley Research Center, Hampton, VA); Cooper, James Arlin

    2003-12-01

    The Unique Signal is a key constituent of Enhanced Nuclear Detonation Safety (ENDS). Although the Unique Signal approach is well prescribed and mathematically assured, there are numerous unsolved mathematical problems that could help assess the risk of deviations from the ideal approach. Some of the mathematics-based results shown in this report are: 1. The risk that two patterns with poor characteristics (easily generated by inadvertent processes) could be combined through exclusive-or mixing to generate an actual Unique Signal pattern has been investigated and found to be minimal (not significant when compared to the incompatibility metric of actual Unique Signal patterns used in nuclear weapons). 2. The risk of generating actual Unique Signal patterns with linear feedback shift registers is minimal, but the patterns in use are not as invulnerable to inadvertent generation by dependent processes as previously thought. 3. New methods of testing pair-wise incompatibility threats have resulted in no significant problems found for the set of Unique Signal patterns currently used. Any new patterns introduced would have to be carefully assessed for compatibility with existing patterns, since some new patterns under consideration were found to be deficient when associated with other patterns in use. 4. Markov models were shown to correspond to some of the engineered properties of Unique Signal sequences. This gives new support for the original design objectives. 5. Potential dependence among events (caused by a variety of communication protocols) has been studied. New evidence has been derived of the risk associated with combined communication of multiple events, and of the improvement in abnormal-environment safety that can be achieved through separate-event communication.

  2. TF type contractive conditions for Kannan and Chatterjea fixed point theorems

    Directory of Open Access Journals (Sweden)

    Mehmet Kir

    2013-12-01

    Full Text Available In this paper, the notation of TF-contractive conditions are investigated for Kannan and Chatterjea type mappings. It is shown that these mappings have a unique fixed point in complete metric spaces.

  3. Fixed point theorems for compatible mappings of type (P and applications to dynamic programming

    Directory of Open Access Journals (Sweden)

    H. K. Pathak

    1995-11-01

    Full Text Available In this paper, we prove some common fixed point theorems for compatible mappings of type (P. As applications, the existence and uniqueness of common solutions for a class of the functional equations in dynamic programming are discussed.

  4. The computed cranial focal point

    NARCIS (Netherlands)

    Jong, G.A. de; Maal, T.J.J.; Delye, H.

    2015-01-01

    INTRODUCTION: Stereophotogrammetry is a radiation-free method for monitoring skull development after craniosynostosis repair. Lack of clear fixed reference points complicate longitudinal comparison of 3D photographs. Therefore we developed the 'computed cranial focal point' (CCFP). METHODS: The CCFP

  5. Existence, uniqueness, and stability of stochastic neutral functional differential equations of Sobolev-type

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Xuetao; Zhu, Quanxin, E-mail: zqx22@126.com [School of Mathematical Sciences and Institute of Mathematics, Nanjing Normal University, Nanjing 210023, Jiangsu (China)

    2015-12-15

    In this paper, we are mainly concerned with a class of stochastic neutral functional differential equations of Sobolev-type with Poisson jumps. Under two different sets of conditions, we establish the existence of the mild solution by applying the Leray-Schauder alternative theory and the Sadakovskii’s fixed point theorem, respectively. Furthermore, we use the Bihari’s inequality to prove the Osgood type uniqueness. Also, the mean square exponential stability is investigated by applying the Gronwall inequality. Finally, two examples are given to illustrate the theory results.

  6. On the Uniqueness of the Solution of Dual Equation of a Singular Sturm–Liouville Problem

    Indian Academy of Sciences (India)

    S Mosazadeh; A Neamaty

    2011-11-01

    In this paper we consider differential systems having a singularity and one turning point. First, by a replacement, we transform the system to a linear second-order equation of Sturm–Liouville type with a singularity. Using the infinite product representation of solutions provided in [8], we obtain the dual equation, then we investigate the uniqueness of the solution for the dual equation of the inverse spectral problem of Sturm–Liouville equation. This result is necessary for expressing inverse problem of indefinite Sturm–Liouville equation.

  7. Recent advances about the uniqueness of the slowly oscillating periodic solutions of Wright's equation

    CERN Document Server

    Lessard, Jean-Philippe

    2009-01-01

    An old conjecture in delay equations states that Wright's equation \\[ y'(t)= - \\alpha y(t-1) [ 1+y(t)], \\alpha \\in \\mathbb{R} \\] has a unique slowly oscillating periodic solution (SOPS) for every parameter value $\\alpha>\\pi/2$. We reformulate this conjecture and we use a method called validated continuation to rigorously compute a global continuous branch of SOPS of Wright's equation. Using this method, we show that a part of this branch does not have any fold point nor does it undergo any secondary bifurcation, partially answering the new reformulated conjecture.

  8. On existence and uniqueness of solutions for variational data assimilation

    Science.gov (United States)

    Bröcker, Jochen

    2017-04-01

    Data assimilation is a term from the geosciences and refers to methods for estimating orbits of dynamical models from observations. Variational techniques for data assimilation estimate these orbits by minimising an appropriate cost functional which takes the error with respect to the observations but also deviations of the orbits from the model equations into account. Such techniques are very important in practice. In this contribution, the problem of existence and uniqueness of solutions to variational data assimilation is investigated. Under mild hypotheses a solution to this problem exists. The problem of uniqueness is investigated as well, and several results (which all have analogues in optimal control) are established in the present context. The value function is introduced as the cost of an optimal trajectory starting from a given initial condition. The necessary conditions in combination with an envelope theorem can be used to demonstrate that the solution is unique if and only if the value function is differentiable at the given initial condition. This occurs for all initial conditions except maybe on a set of Lebesgue measure zero. Several examples are studied which demonstrate that non-uniqueness of solutions cannot be ruled out altogether though, which has important consequences in practice. References: J. Bröcker, "Existence and Uniqueness For Four Dimensional Variational Data Assimilation in Discrete Time.", SIAM Journal of Applied Dynamical Systems (accepted).

  9. α-Coupled Fixed Points and Their Application in Dynamic Programming

    Directory of Open Access Journals (Sweden)

    J. Harjani

    2014-01-01

    Full Text Available We introduce the definition of α-coupled fixed point in the space of the bounded functions on a set S and we present a result about the existence and uniqueness of such points. Moreover, as an application of our result, we study the problem of existence and uniqueness of solutions for a class of systems of functional equations arising in dynamic programming.

  10. Inference of change-point in single index models

    Institute of Scientific and Technical Information of China (English)

    CAO GuanQun; WANG ZhanFeng; WU YaoHua; ZHAO LinCheng

    2008-01-01

    Single index models are widely used in medicine,econometrics and some other fields.In this paper,we consider the inference of a change point problem in single index models.Based on density-weighted average derivative estimation (ADE) method,we propose a statistic to test whether a change point exists or not.The null distribution of the test statistic is obtained using a permutation technique.The permuted statistic is rigorously shown to have the same distribution in the limiting sense under both null and alternative hypotheses.After the null hypothesis of no change point is rejected,an ADE-based estimate of the change point is proposed under assumption that the change point is unique.A simulation study confirms the theoretical results.

  11. Inference of change-point in single index models

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Single index models are widely used in medicine, econometrics and some other fields. In this paper, we consider the inference of a change point problem in single index models. Based on density-weighted average derivative estimation (ADE) method, we propose a statistic to test whether a change point exists or not. The null distribution of the test statistic is obtained using a permutation technique. The permuted statistic is rigorously shown to have the same distribution in the limiting sense under both null and alternative hypotheses. After the null hypothesis of no change point is rejected, an ADE-based estimate of the change point is proposed under assumption that the change point is unique. A simulation study confirms the theoretical results.

  12. Spawning rings of exceptional points out of Dirac cones

    CERN Document Server

    Zhen, Bo; Igarashi, Yuichi; Lu, Ling; Kaminer, Ido; Pick, Adi; Chua, Song-Liang; Joannopoulos, John D; Soljačić, Marin

    2015-01-01

    The Dirac cone underlies many unique electronic properties of graphene and topological insulators, and its band structure--two conical bands touching at a single point--has also been realized for photons in waveguide arrays, atoms in optical lattices, and through accidental degeneracy. Deformations of the Dirac cone often reveal intriguing properties; an example is the quantum Hall effect, where a constant magnetic field breaks the Dirac cone into isolated Landau levels. A seemingly unrelated phenomenon is the exceptional point, also known as the parity-time symmetry breaking point, where two resonances coincide in both their positions and widths. Exceptional points lead to counter-intuitive phenomena such as loss-induced transparency, unidirectional transmission or reflection, and lasers with reversed pump dependence or single-mode operation. These two fields of research are in fact connected: here we discover the ability of a Dirac cone to evolve into a ring of exceptional points, which we call an "exceptio...

  13. Solving discrete zero point problems

    NARCIS (Netherlands)

    van der Laan, G.; Talman, A.J.J.; Yang, Z.F.

    2004-01-01

    In this paper an algorithm is proposed to .nd a discrete zero point of a function on the collection of integral points in the n-dimensional Euclidean space IRn.Starting with a given integral point, the algorithm generates a .nite sequence of adjacent integral simplices of varying dimension and termi

  14. Magic Pointing for Eyewear Computers

    DEFF Research Database (Denmark)

    Jalaliniya, Shahram; Mardanbegi, Diako; Pederson, Thomas

    2015-01-01

    In this paper, we propose a combination of head and eye movements for touchlessly controlling the "mouse pointer" on eyewear devices, exploiting the speed of eye pointing and accuracy of head pointing. The method is a wearable computer-targeted variation of the original MAGIC pointing approach...

  15. Magic Pointing for Eyewear Computers

    DEFF Research Database (Denmark)

    Jalaliniya, Shahram; Mardanbegi, Diako; Pederson, Thomas

    2015-01-01

    In this paper, we propose a combination of head and eye movements for touchlessly controlling the "mouse pointer" on eyewear devices, exploiting the speed of eye pointing and accuracy of head pointing. The method is a wearable computer-targeted variation of the original MAGIC pointing approach...

  16. Clinical Application of Point Diji

    Institute of Scientific and Technical Information of China (English)

    栾继萍

    2004-01-01

    @@ Diji (SP 8) is a cleft point of the Spleen Channel of Foot-Taiyang. Its indications include abdominal pain, diarrhea, edema, dysmenorrhea and certain other symptoms caused by incoordination between the liver and the spleen. Either taking the point alone or together with some other adjunct points in clinical practice, the author has obtained satisfactory curative effects.

  17. Uniqueness Domains in the Workspace of Parallel Manipulators

    CERN Document Server

    Wenger, Philippe

    1997-01-01

    This work investigates new kinematic features of parallel manipulators. It is well known that parallel manipulators admit generally several direct kinematic solutions for a given set of input joint values. The aim of this paper is to characterize the uniqueness domains in the workspace of parallel manipulators, as well as their image in the joint space. The study focuses on the most usual case of parallel manipulators with only one inverse kinematic solution. The notion of aspect introduced for serial manipulators in [Borrel 86] is redefined for such parallel manipulators. Then, it is shown that it is possible to link several solutions to the forward kinematic problem without meeting a singularity, thus meaning that the aspects are not uniqueness domains. An additional set of surfaces, namely the characteristic surfaces, are characterized which divide the workspace into basic regions and yield new uniqueness domains. This study is illustrated all along the paper with a 3-RPR planar parallel manipulator. An oc...

  18. Uniqueness: skews bit occurrence frequencies in randomly generated fingerprint libraries.

    Science.gov (United States)

    Chen, Nelson G

    2016-08-01

    Requiring that randomly generated chemical fingerprint libraries have unique fingerprints such that no two fingerprints are identical causes a systematic skew in bit occurrence frequencies, the proportion at which specified bits are set. Observed frequencies (O) at which each bit is set within the resulting libraries systematically differ from frequencies at which bits are set at fingerprint generation (E). Observed frequencies systematically skew toward 0.5, with the effect being more pronounced as library size approaches the compound space, which is the total number of unique possible fingerprints given the number of bit positions each fingerprint contains. The effect is quantified for varying library sizes as a fraction of the overall compound space, and for changes in the specified frequency E. The cause and implications for this systematic skew are subsequently discussed. When generating random libraries of chemical fingerprints, the imposition of a uniqueness requirement should either be avoided or taken into account.

  19. Word from the CSO - CERN’s unique scientific breadth

    CERN Multimedia

    2008-01-01

    Whilst we are all clearly focused on completion of the LHC and the detectors around it and look forward to a successful start of operations later this year, we should not forget that CERN has yet more to offer in addition to this highest priority programme ‘at the energy frontier’. Indeed, CERN also attracts a large scientific community seizing the opportunities offered by its other facilities. Sometimes I wonder whether we are not too modest and should not emphasize more CERN’s unique scientific breadth. ISOLDE, at the PS Booster, relies on innovative techniques to produce results at the forefront of nuclear physics very cost-effectively. nTOF has provided unique measurements of interest to nuclear technology, nuclear astrophysics and basic nuclear physics, and still has an ambitious programme ahead of it after refurbishment of the target. Another unique facility is the Antiproton Decelerator, at which the study of antimatter is being pursued with ingenious experiment...

  20. Ground point filtering of UAV-based photogrammetric point clouds

    Science.gov (United States)

    Anders, Niels; Seijmonsbergen, Arie; Masselink, Rens; Keesstra, Saskia

    2016-04-01

    Unmanned Aerial Vehicles (UAVs) have proved invaluable for generating high-resolution and multi-temporal imagery. Based on photographic surveys, 3D surface reconstructions can be derived photogrammetrically so producing point clouds, orthophotos and surface models. For geomorphological or ecological applications it may be necessary to separate ground points from vegetation points. Existing filtering methods are designed for point clouds derived using other methods, e.g. laser scanning. The purpose of this paper is to test three filtering algorithms for the extraction of ground points from point clouds derived from low-altitude aerial photography. Three subareas were selected from a single flight which represent different scenarios: 1) low relief, sparsely vegetated area, 2) low relief, moderately vegetated area, 3) medium relief and moderately vegetated area. The three filtering methods are used to classify ground points in different ways, based on 1) RGB color values from training samples, 2) TIN densification as implemented in LAStools, and 3) an iterative surface lowering algorithm. Ground points are then interpolated into a digital terrain model using inverse distance weighting. The results suggest that different landscapes require different filtering methods for optimal ground point extraction. While iterative surface lowering and TIN densification are fully automated, color-based classification require fine-tuning in order to optimize the filtering results. Finally, we conclude that filtering photogrammetric point clouds could provide a cheap alternative to laser scan surveys for creating digital terrain models in sparsely vegetated areas.

  1. Tei index might be the unique echocardiographic parameter that detects hyperviscosity syndrome: A case report

    Directory of Open Access Journals (Sweden)

    Boban Marko

    2013-12-01

    Full Text Available Hyperviscosity syndromes are disorders of infrequent prevalence in which changes of rheological characteristics cause increased resistance to blood flow, endothelial dysfunction, tissue ischemia and bleeding. Signs of hyperviscosity syndrome become clinically overt at the point of 4 centipoise units. We present a case of patient with hyperviscosity syndrome due to Waldenstrom's macroglobulinemia with negative records on earlier cardiovascular illnesses. Laboratory diagnostic and standard echocardiography did not show any deviation towards increased cardiovascular risk, heart failure or ischemic heart disease. However, unique clinically significant change that could be indirectly related to hyperviscosity syndrome was found with the myocardium performance index (MPI. Tei-index showed median value of 0.75 corresponding to severe grades of myocardial dysfunction earlier described in the literature for other entities. Comprehensive roles of rheological changes in relation to echocardiography, pathophysiology of myocardial performance and cardiovascular continuum might be interesting point for further investigations.

  2. Imaging study on acupuncture points

    Energy Technology Data Exchange (ETDEWEB)

    Yan, X H; Zhang, X Y [Synchrotron Radiation Research Center, Physics Department, and Surface Physics Laboratory (State Key Laboratory) of Fudan University, Shanghai 200433 (China); Liu, C L [Physics Department of Yancheng Teachers College, Yancheng 224002 (China); Dang, R S [Second Military Medical University, Shanghai 200433 (China); Ando, M [DDS center, Research Institute for Science and Technology, Tokyo University of Science, Yamasaki 2541, Noda, Chiba 278-8510 (Japan); Sugiyama, H [Photon Factory, Institute of Material Structure Science, High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305-0801 (Japan); Chen, H S [Institute of Modern Physics, Fudan University, Shanghai 200433 (China); Ding, G H, E-mail: xy-zhang@fudan.edu.c [Shanghai Research Center of Acupuncture and Meridian, Shanghai 201203 (China)

    2009-09-01

    The topographic structures of acupuncture points were investigated by using the synchrotron radiation based Dark Field Image (DFI) method. Four following acupuncture points were studied: Sanyinjiao, Neiguan, Zusanli and Tianshu. We have found that at acupuncture point regions there exists the accumulation of micro-vessels. The images taken in the surrounding tissue out of the acupuncture points do not show such kind of structure. It is the first time to reveal directly the specific structure of acupuncture points by X-ray imaging.

  3. Imaging study on acupuncture points

    Science.gov (United States)

    Yan, X. H.; Zhang, X. Y.; Liu, C. L.; Dang, R. S.; Ando, M.; Sugiyama, H.; Chen, H. S.; Ding, G. H.

    2009-09-01

    The topographic structures of acupuncture points were investigated by using the synchrotron radiation based Dark Field Image (DFI) method. Four following acupuncture points were studied: Sanyinjiao, Neiguan, Zusanli and Tianshu. We have found that at acupuncture point regions there exists the accumulation of micro-vessels. The images taken in the surrounding tissue out of the acupuncture points do not show such kind of structure. It is the first time to reveal directly the specific structure of acupuncture points by X-ray imaging.

  4. PowerPoint 2010 Bible

    CERN Document Server

    Wempen, Faithe

    2010-01-01

    Master PowerPoint and improve your presentation skills-with one book!. It's no longer enough to have slide after slide of text, bullets, and charts. It's not even enough to have good speaking skills if your PowerPoint slides bore your audience. Get the very most out of all that PowerPoint 2010 has to offer while also learning priceless tips and techniques for making good presentations in this new PowerPoint 2010 Bible. Well-known PowerPoint expert and author Faithe Wempen provides formatting tips; shows you how to work with drawings, tables, and SmartArt; introduces new collaboration tools; wa

  5. Flexible and efficient genome tiling design with penalized uniqueness score

    Directory of Open Access Journals (Sweden)

    Du Yang

    2012-12-01

    Full Text Available Abstract Background As a powerful tool in whole genome analysis, tiling array has been widely used in the answering of many genomic questions. Now it could also serve as a capture device for the library preparation in the popular high throughput sequencing experiments. Thus, a flexible and efficient tiling array design approach is still needed and could assist in various types and scales of transcriptomic experiment. Results In this paper, we address issues and challenges in designing probes suitable for tiling array applications and targeted sequencing. In particular, we define the penalized uniqueness score, which serves as a controlling criterion to eliminate potential cross-hybridization, and a flexible tiling array design pipeline. Unlike BLAST or simple suffix array based methods, computing and using our uniqueness measurement can be more efficient for large scale design and require less memory. The parameters provided could assist in various types of genomic tiling task. In addition, using both commercial array data and experiment data we show, unlike previously claimed, that palindromic sequence exhibiting relatively lower uniqueness. Conclusions Our proposed penalized uniqueness score could serve as a better indicator for cross hybridization with higher sensitivity and specificity, giving more control of expected array quality. The flexible tiling design algorithm incorporating the penalized uniqueness score was shown to give higher coverage and resolution. The package to calculate the penalized uniqueness score and the described probe selection algorithm are implemented as a Perl program, which is freely available at http://www1.fbn-dummerstorf.de/en/forschung/fbs/fb3/paper/2012-yang-1/OTAD.v1.1.tar.gz.

  6. The Pliocene Indian Ocean: A Unique Planktonic Foraminifer Distribution

    Science.gov (United States)

    Robinson, M. M.; Dowsett, H. J.; Stoll, D. K.

    2013-12-01

    The Indian Ocean is complex in its ocean-atmosphere interactions, most notably the Indian Monsoon, and in its circulation regime that is dictated by the surrounding continental configuration. Its relative isolation from other ocean basins and its dynamic tropical processes, ruled by variations in interannual variability, create an environment of rapid response to local climate forcings. The Indian Ocean should, therefore, be among the first regions to record geologic indicators of local responses to global climate change. Despite the wealth of global paleoclimate data available for the mid-Piacenzian, ~3.3 to 3.0 Ma, the Indian Ocean has remained a region of sparse geographic coverage in terms of microfossil analysis. This climatically relevant warm period is of particular importance due to the similarity of mid-Piacenzian climate to what is projected for the near future. In the Indian Ocean, the 3.3 to 3.0 Ma interval sits at the intersection of major regional tectonically-induced oceanic and atmospheric circulation changes and global climate reorganizations including uplift of the Tibetan Plateau, expansion of the Antarctic ice sheet, closure of the Indonesian Seaway, intensification of Northern Hemisphere glaciation, and the development of the modern east-west SST gradient in the equatorial Pacific. This was a period of intense summer monsoon activity in the Indian Ocean, leading to a reorganization of the Indian monsoon ~2.8 Ma. In an effort to characterize the surface Indian Ocean during this complex climate interval, we examined the planktonic foraminifera from ODP Sites 709, 716, 722, 747, 751, 754, 757, 758 and 763, encompassing a wide range of oceanographic conditions. Quantitative analysis of Pliocene faunas highlight the unique nature of some Indian Ocean assemblages, particularly in the Bay of Bengal where a high percentage of Sphaeroidenellopsis and Sphaeroidinella points to a thermally homogenous water column capped by a persistent shallow halocline

  7. Uniqueness of form extensions and domination of semigroups

    OpenAIRE

    Lenz, Daniel; Schmidt, Marcel; Wirth, Melchior

    2016-01-01

    In this article, we present a new method to treat uniqueness of form extensions in a rather general setting including various magnetic Schr\\"odinger forms. The method is based on the theory of ordered Hilbert spaces and the concept of domination of semigroups. We review this concept in an abstract setting and give a characterization in terms of the associated forms. Then we use it to prove a theorem that transfers uniqueness of form extension of a dominating form to that of a dominated form. ...

  8. Unique Applications for Artificial Neural Networks. Phase 1

    Science.gov (United States)

    1991-08-08

    AD-A243 365’ l!1111iLI[li In M aR C ’ PHASE I FINAL REPORT Unique Applications for Artificial Neural Networks DARPA SBIR 90-115 Contract # DAAH01-91...Contents Unique Applications for Artificial Neural Networks Acknowledgments Table of Contents Abstract i 1.0 Introduction 1 2.0 The NGO-VRP Solver 2...34 solution is thus obtained through analogy. Because of this activity, artificial neural networks have emerged as a primary artificial intelligence

  9. Unique cardiac and cerebral anomalies with chondrodysplasia punctata.

    Science.gov (United States)

    Ciske, D J; Waggoner, D J; Dowton, S B

    1998-01-06

    Chondrodysplasia punctata (CDP) is associated with a variety of genetic and nongenetic conditions. We report a girl with CDP, complex congenital cardiac disease, central nervous system (CNS) anomalies, and clinical findings that resemble those of the sibs described by Toriello et al. [1993, Am J Med Genet 47:797-799]. The cardiac defects and CNS abnormalities reported are unique in the context of CDP and may serve to expand the phenotypic spectrum of the unique form of CDP described by Toriello et al. [1993].

  10. View Dependent Sequential Point Trees

    Institute of Scientific and Technical Information of China (English)

    Wen-Cheng Wang; Feng Wei; En-Hua Wu

    2006-01-01

    Sequential point trees provide the state-of-the-art technique for rendering point models, by re-arranging hierarchical points sequentially according to geometric errors running on GPU for fast rendering. This paper presents a view dependent method to augment sequential point trees by embedding the hierarchical tree structures in the sequential list of hierarchical points. By the method, two kinds of indices are constructed to facilitate the points rendering in an order mostly from near to far and from coarse to fine. As a result, invisible points can be culled view-dependently in high efficiency for hardware acceleration, and at the same time, the advantage of sequential point trees could be still fully taken. Therefore, the new method can run much faster than the conventional sequential point trees, and the acceleration can be highly promoted particularly when the objects possess complex occlusion relationship and viewed closely because invisible points would be in a high percentage of the points at finer levels.

  11. What's unique about unique entities? An fMRI investigation of the semantics of famous faces and landmarks.

    Science.gov (United States)

    Ross, Lars A; Olson, Ingrid R

    2012-09-01

    Famous people and artifacts are referred to as "unique entities" (UEs) due to the unique nature of the knowledge we have about them. Past imaging and lesion experiments have indicated that the anterior temporal lobes (ATLs) as having a special role in the processing of UEs. It has remained unclear which attributes of UEs were responsible for the observed effects in imaging experiments. In this study, we investigated what factors of UEs influence brain activity. In a training paradigm, we systematically varied the uniqueness of semantic associations, the presence/absence of a proper name, and the number of semantic associations to determine factors modulating activity in regions subserving the processing of UEs. We found that a conjunction of unique semantic information and proper names modulated activity within a section of the left ATL. Overall, the processing of UEs involved a wider left-hemispheric cortical network. Within these regions, brain activity was significantly affected by the unique semantic attributes especially in the presence of a proper name, but we could not find evidence for an effect of the number of semantic associations. Findings are discussed in regard to current models of ATL function, the neurophysiology of semantics, and social cognitive processing.

  12. Coupled Fixed Point Theorems with New Implicit Relations and an Application

    Directory of Open Access Journals (Sweden)

    G. V. R. Babu

    2014-01-01

    Full Text Available We introduce two new classes of implicit relations S and S′ where S′ is a proper subset of S, and these classes are more general than the class of implicit relations defined by Altun and Simsek (2010. We prove the existence of coupled fixed points for the maps satisfying an implicit relation in S. These coupled fixed points need not be unique. In order to establish the uniqueness of coupled fixed points we use an implicit relation S′, where S′⊂S. Our results extend the fixed point theorems on ordered metric spaces of Altun and Simsek (2010 to coupled fixed point theorems and generalize the results of Gnana Bhaskar and Lakshimantham (2006. As an application of our results, we discuss the existence and uniqueness of solution of Fredholm integral equation.

  13. Two-point optical coherency matrix tomography.

    Science.gov (United States)

    Abouraddy, Ayman F; Kagalwala, Kumel H; Saleh, Bahaa E A

    2014-04-15

    The two-point coherence of an electromagnetic field is represented completely by a 4×4 coherency matrix G that encodes the joint polarization-spatial-field correlations. Here, we describe a systematic sequence of cascaded spatial and polarization projective measurements that are sufficient to tomographically reconstruct G--a task that, to the best of our knowledge, has not yet been realized. Our approach benefits from the correspondence between this reconstruction problem in classical optics and that of quantum state tomography for two-photon states in quantum optics. Identifying G uniquely determines all the measurable correlation characteristics of the field and, thus, lifts ambiguities that arise from reliance on traditional scalar descriptors, especially when the field's degrees of freedom are correlated or classically entangled.

  14. New Optics See More With Less

    Science.gov (United States)

    Nabors, Sammy

    2015-01-01

    NASA offers companies an optical system that provides a unique panoramic perspective with a single camera. NASA's Marshall Space Flight Center has developed a technology that combines a panoramic refracting optic (PRO) lens with a unique detection system to acquire a true 360-degree field of view. Although current imaging systems can acquire panoramic images, they must use up to five cameras to obtain the full field of view. MSFC's technology obtains its panoramic images from one vantage point.

  15. Point to point processing of digital images using parallel computing

    Directory of Open Access Journals (Sweden)

    Eric Olmedo

    2012-05-01

    Full Text Available This paper presents an approach the point to point processing of digital images using parallel computing, particularly for grayscale, brightening, darkening, thresholding and contrast change. The point to point technique applies a transformation to each pixel on image concurrently rather than sequentially. This approach used CUDA as parallel programming tool on a GPU in order to take advantage of all available cores. Preliminary results show that CUDA obtains better results in most of the used filters. Except in the negative filter with lower resolutions images OpenCV obtained better ones, but using images in high resolutions CUDA performance is better.

  16. Cone photoreceptor sensitivities and unique hue chromatic responses: correlation and causation imply the physiological basis of unique hues.

    Directory of Open Access Journals (Sweden)

    Ralph W Pridmore

    Full Text Available This paper relates major functions at the start and end of the color vision process. The process starts with three cone photoreceptors transducing light into electrical responses. Cone sensitivities were once expected to be Red Green Blue color matching functions (to mix colors but microspectrometry proved otherwise: they instead peak in yellowish, greenish, and blueish hues. These physiological functions are an enigma, unmatched with any set of psychophysical (behavioral functions. The end-result of the visual process is color sensation, whose essential percepts are unique (or pure hues red, yellow, green, blue. Unique hues cannot be described by other hues, but can describe all other hues, e.g., that hue is reddish-blue. They are carried by four opponent chromatic response curves but the literature does not specify whether each curve represents a range of hues or only one hue (a unique over its wavelength range. Here the latter is demonstrated, confirming that opponent chromatic responses define, and may be termed, unique hue chromatic responses. These psychophysical functions also are an enigma, unmatched with any physiological functions or basis. Here both enigmas are solved by demonstrating the three cone sensitivity curves and the three spectral chromatic response curves are almost identical sets (Pearson correlation coefficients r from 0.95-1.0 in peak wavelengths, curve shapes, math functions, and curve crossover wavelengths, though previously unrecognized due to presentation of curves in different formats, e.g., log, linear. (Red chromatic response curve is largely nonspectral and thus derives from two cones. Close correlation combined with deterministic causation implies cones are the physiological basis of unique hues. This match of three physiological and three psychophysical functions is unique in color vision.

  17. The truncated Second Main Theorem and uniqueness theorems

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    In this paper, we first establish a truncated Second Main Theorem for algebraically nondegenerate holomorphic mappings from the complex plane into a complex projective variety V intersecting hypersurfaces. We then prove some uniqueness results for meromorphic mappings. The result of Demailly about a partial solution to the Fujita’s conjecture is used.

  18. Uniqueness Result in the Cauchy Dirichlet Problem via Mehler Kernel

    Science.gov (United States)

    Dhungana, Bishnu P.

    2014-09-01

    Using the Mehler kernel, a uniqueness theorem in the Cauchy Dirichlet problem for the Hermite heat equation with homogeneous Dirichlet boundary conditions on a class P of bounded functions U( x, t) with certain growth on U x ( x, t) is established.

  19. Three Unique Implementations of Processes for PyCSP

    DEFF Research Database (Denmark)

    Friborg, Rune Møllegaard; Bjørndalen, John Markus; Vinter, Brian

    2009-01-01

    In this work we motivate and describe three unique implementations of processes for PyCSP: process, thread and greenlet based. The overall purpose is to demonstrate the feasibility of Communicating Sequential Processes as a framework for different application types and target platforms. The resul...

  20. Periodic Hamiltonian hierarchies and non-uniqueness of superpotentials

    Indian Academy of Sciences (India)

    PARTHA MANDAL; ABHIJIT BANERJEE

    2017-01-01

    In this article, a family of periodic quantum Hamiltonians, that is subject to a closure condition is considered. In the context of the factorization method, we address the question of non-uniqueness of the governing superpotentials and study an alternative factorization to generate new hierarchies of potentials.

  1. Solutions of fractional nabla difference equations - existence and uniqueness

    Directory of Open Access Journals (Sweden)

    Jagan Mohan Jonnalagadda

    2016-01-01

    Full Text Available In this article, we discuss existence, uniqueness and dependency of solutions of nonlinear fractional nabla difference equations in a Banach space equipped with a suitable norm, using the contractive mapping approach. As an application of the established results we present and analyse a few examples.

  2. Uniqueness in inverse elastic scattering with finitely many incident waves

    Energy Technology Data Exchange (ETDEWEB)

    Elschner, Johannes [Weierstrass-Institut fuer Angewandte Analysis und Stochastik (WIAS) im Forschungsverbund Berlin e.V. (Germany); Yamamoto, Masahiro [Tokyo Univ. (Japan). Dept. of Mathematical Sciences

    2009-07-01

    We consider the third and fourth exterior boundary value problems of linear isotropic elasticity and present uniqueness results for the corresponding inverse scattering problems with polyhedral-type obstacles and a finite number of incident plane elastic waves. Our approach is based on a reflection principle for the Navier equation. (orig.)

  3. MSI's unique, multi-functional contract sterilization facility

    Science.gov (United States)

    Morganstern, Kennard H.

    Medical Sterilization Inc. is a unique company supplying sterilization services to regional hospitals in the New York area and also providing contract sterilization and radiation processing services to industry. The evolution from a concept to an operational entity is reviewed in this report.

  4. Unique Factorization in Cyclotomic Integers of Degree Seven

    Science.gov (United States)

    Duckworth, W. Ethan

    2008-01-01

    This article provides a survey of some basic results in algebraic number theory and applies this material to prove that the cyclotomic integers generated by a seventh root of unity are a unique factorization domain. Part of the proof uses the computer algebra system Maple to find and verify factorizations. The proofs use a combination of historic…

  5. On the uniqueness of minimal projections in Banach spaces

    Directory of Open Access Journals (Sweden)

    Ewa Szlachtowska

    2012-01-01

    Full Text Available Let \\(X\\ be a uniformly convex Banach space with a continuous semi-inner product. We investigate the relation of orthogonality in \\(X\\ and generalized projections acting on \\(X\\. We prove uniqueness of orthogonal and co-orthogonal projections.

  6. Is Self-Assessment in Religious Education Unique?

    Science.gov (United States)

    Brooks, Val; Fancourt, Nigel

    2012-01-01

    This paper addresses the question: is self-assessment in religious education unique? It first presents an overview of some challenges for assessment from subject differences, and then reviews the generic literature on self-assessment. It builds on earlier empirical research on self-assessment in religious education, carried out in an English state…

  7. Uniqueness of group-measure space Cartan subalgebras

    CERN Document Server

    Kyed, David

    2011-01-01

    These notes provide an account on four lectures given by Adrian Ioana at the Institut Henri Poincare in May 2011, regarding a number of "uniqueness of Cartan" type results obtained in a recent series of papers by Chifan-Peterson and Popa-Vaes. The text is purely expository.

  8. The stereochemistry of baishouwubenzophenone, a unique atropisomer from C. wilfordii

    Science.gov (United States)

    Zhou, Zhixu; Wang, Zhiqiang; Li, Linwei; Zhang, Ke; Peng, Qing; Wang, Shuyun; Wang, Jinhui; Huang, Jian; Sun, Tiemin

    2016-12-01

    Baishouwubenzophenone (1), possessing a unique atropisomeric feature, has been isolated from the roots of Cynanchum wilfordii. The congested structure makes it showing optical activity and consequently the absolute configuration was identified by experimental CD and computational approaches. Configurational assignment was further confirmed by exciton chirality method. The structural features in baishouwubenzophenone molecule allow it to be a potential atropisomeric ligand in asymmetric synthesis.

  9. Unique Issues in Rural Couple and Family Counseling.

    Science.gov (United States)

    Weigel, Daniel J.; Baker, Brad G.

    2002-01-01

    The purpose of this article is to review the available literature regarding rural couple and family counseling, in conjunction with the findings of research in closely related fields. This review is conducted in an effort to identify unique practice issues facing rural couple and family counselors. (Contains 77 references.) (GCP)

  10. Marketing the Uniqueness of Small Towns. Small Town Strategy.

    Science.gov (United States)

    Hogg, David H.; Dunn, Douglas

    A small town can strengthen its local economy as a result of business people and concerned citizens collectively identifying that community's uniqueness and then capitalizing on it via advertising, personal selling, sales promotion, or publicity. This publication relates the science of marketing to communities. Seven simple techniques are provided…

  11. Is Self-Assessment in Religious Education Unique?

    Science.gov (United States)

    Brooks, Val; Fancourt, Nigel

    2012-01-01

    This paper addresses the question: is self-assessment in religious education unique? It first presents an overview of some challenges for assessment from subject differences, and then reviews the generic literature on self-assessment. It builds on earlier empirical research on self-assessment in religious education, carried out in an English state…

  12. The quantum unique ergodicity conjecture for thin sets

    OpenAIRE

    Young, Matthew P

    2013-01-01

    We consider some analogs of the quantum unique ergodicity conjecture for geodesics, horocycles, or ``shrinking'' families of sets. In particular, we prove the analog of the QUE conjecture for Eisenstein series restricted to the infinite geodesic connecting 0 and infinity inside the modular surface.

  13. THE UNIQUENESS OF BIFURCATION TO SEPARATRIX LOOPS IN SUPERCRITICAL CASES

    Institute of Scientific and Technical Information of China (English)

    SUNJIANHUA

    1994-01-01

    In paper[4] the existence of bifurcation to separatrix loops in supercritical cases on the plane is studied.This note is a continuation of [4].The author proves the uniqueness of limit cycles in a neighb-orhood of the separatrix loop,and the results strengthen the relevant conclusions in[1-6].

  14. Unique Characteristics of a Graduate Program in Applied Communication.

    Science.gov (United States)

    Schrader, Stuart M.; Mills, Kim White; Dick, Robert

    2001-01-01

    Addresses one Communication Department's sojourn in designing, developing, and proposing a unique Master of Arts in Applied Communication. Discusses steps in developing an applied graduate program, the mission statement for the program, the curriculum, the expected impact of the graduate program on the undergraduate program, and program strengths.…

  15. Uniqueness of Meromorphic Functions and Question of Gross

    Institute of Scientific and Technical Information of China (English)

    仪洪勋

    1994-01-01

    In this paper, we deal with the problem of uniqueness of meromorphic functions. It is shown that there exist two finite sets Sj (j=1, 2) such that any two nonconstant meromorphic functions f and g satisfying Ef(Sj)=Eg(Sj) for j = 1,2 must be identical, which answers a question posed by Gross.

  16. Plant tolerance: A unique approach to control hemipteran pests

    Science.gov (United States)

    Plant tolerance to insect pests has been indicated to be a unique category of resistance, however, very little information is available on the mechanism of tolerance against insect pests. Tolerance is distinctive in terms of the plant’s ability to withstand or recover from herbivore injury through g...

  17. Minimal fusion systems with a unique maximal parabolic

    DEFF Research Database (Denmark)

    Henke, Ellen

    2011-01-01

    We define minimal fusion systems in a way that every non-solvable fusion system has a section which is minimal. Minimal fusion systems can also be seen as analogs of Thompson's N-groups. In this paper, we consider a minimal fusion system F on a finite p-group S that has a unique maximal p-local s...

  18. Crossover Can Be Constructive When Computing Unique Input Output Sequences

    DEFF Research Database (Denmark)

    Lehre, Per Kristian; Yao, Xin

    2010-01-01

    Unique input output (UIO) sequences have important applications in conformance testing of finite state machines (FSMs). Previous experimental and theoretical research has shown that evolutionary algorithms (EAs) can compute UIOs efficiently on many FSM instance classes, but fail on others. However...

  19. DECISIONS ET COMPETITIVITE SUR LE MARCHE UNIQUE EUROPEEN

    Directory of Open Access Journals (Sweden)

    Sirghi Nicoleta

    2008-05-01

    Full Text Available L’un des traits importants du marché unique européen, a comme source le męme énoncé du principal objectif de l’intégration européenne ainsi que: l’harmonisation des niveaux du développement des Etats Membres et l’augmentation du niveau de vie dans l’ensemble de la communauté. Pour le marché unique européen, cet aspect se traduit par une permanente et soutenue augmentation de la demande. Cet ouvrage présente au début une analyse des éléments spécifiques du marché européen. Ensuite on identifie les opportunités et les risques au niveau macroéconomique adjointes aux perspectives du marché unique européen. Comme fondement on présente des stratégies du développement réalisables au niveau microéconomique que puissent assurer l’augmentation du niveau sur la compétitivité des sociétés sur le marché unique européen.

  20. Anisotropic uniqueness classes for a degenerate parabolic equation

    Energy Technology Data Exchange (ETDEWEB)

    Vil' danova, V F [Bashkir State Pedagogical University, Ufa (Russian Federation); Mukminov, F Kh [Bashkir State University, Ufa (Russian Federation)

    2013-11-30

    Anisotropic uniqueness classes of Tacklind type are identified for a degenerate linear parabolic equation of the second order in an unbounded domain. The Cauchy problem and mixed problems with boundary conditions of the first and third type are considered. Bibliography: 18 titles.

  1. On the Uniqueness Result for the Dirichlet Problem and Invexity

    Directory of Open Access Journals (Sweden)

    M. Płócienniczak

    2008-08-01

    Full Text Available We provide an existence and uniqueness theorem for the Dirichlet problem div Hz(y,Ñx(y=ÑxF(y,x(y.The assumption that both H and F are invex with respect to the second variable is imposed and the direct variational method is applied. The applicationis also shown.

  2. Uniquely D-colourable digraphs with large girth

    CERN Document Server

    Harutyunyan, Ararat; Mohar, Bojan; Rafferty, Liam

    2011-01-01

    Let C and D be digraphs. A mapping $f:V(D)\\to V(C)$ is a C-colouring if for every arc $uv$ of D, either $f(u)f(v)$ is an arc of C or $f(u)=f(v)$, and the preimage of every vertex of C induces an acyclic subdigraph in D. We say that D is C-colourable if it admits a C-colouring and that D is uniquely C-colourable if it is surjectively C-colourable and any two C-colourings of D differ by an automorphism of C. We prove that if a digraph D is not C-colourable, then there exist digraphs of arbitrarily large girth that are D-colourable but not C-colourable. Moreover, for every digraph D that is uniquely D-colourable, there exists a uniquely D-colourable digraph of arbitrarily large girth. In particular, this implies that for every rational number $r\\geq 1$, there are uniquely circularly r-colourable digraphs with arbitrarily large girth.

  3. Lack of a unique termination site for the first round of bacteriophage lambda DNA replication

    Energy Technology Data Exchange (ETDEWEB)

    Valenzuela, M.S. (Brandeis Univ., Waltham, MA); Freifelder, D.; Inman, R.B.

    1976-01-01

    From previous data on the first round of bacteriophage lambdacIIcIII DNA replication (Schnos and Inman, 1970) it is possible to estimate, by extrapolation, the position on circular lambda DNA where bidirectional growing points meet. In the present study we have investigated whether this position occurs at a genetically defined site. To this end, replicative intermediates of lambda mutants containing either deletions to the left of the replication origin, or one deletion plus a duplication to the right, were analyzed in the electron microscope. Our results indicate that (i) leftward growing points can traverse the extrapolated termination point calculated from the lambdacIIcIII data, (ii) no discontinuity of either right or leftward growing fork position is observed, and (iii) the extrapolated termination points for these mutants are well removed from those calculated for lambdacIIcIII DNA. From these data we conclude that there is probably no unique termination site for the first round of lambda DNA replication and that termination occurs simply by collision of the growing forks.

  4. Graph kernels between point clouds

    CERN Document Server

    Bach, Francis

    2007-01-01

    Point clouds are sets of points in two or three dimensions. Most kernel methods for learning on sets of points have not yet dealt with the specific geometrical invariances and practical constraints associated with point clouds in computer vision and graphics. In this paper, we present extensions of graph kernels for point clouds, which allow to use kernel methods for such ob jects as shapes, line drawings, or any three-dimensional point clouds. In order to design rich and numerically efficient kernels with as few free parameters as possible, we use kernels between covariance matrices and their factorizations on graphical models. We derive polynomial time dynamic programming recursions and present applications to recognition of handwritten digits and Chinese characters from few training examples.

  5. A SVD-based method to assess the uniqueness and accuracy of SPECT geometrical calibration.

    Science.gov (United States)

    Ma, Tianyu; Yao, Rutao; Shao, Yiping; Zhou, Rong

    2009-12-01

    Geometrical calibration is critical to obtaining high resolution and artifact-free reconstructed image for SPECT and CT systems. Most published calibration methods use analytical approach to determine the uniqueness condition for a specific calibration problem, and the calibration accuracy is often evaluated through empirical studies. In this work, we present a general method to assess the characteristics of both the uniqueness and the quantitative accuracy of the calibration. The method uses a singular value decomposition (SVD) based approach to analyze the Jacobian matrix from a least-square cost function for the calibration. With this method, the uniqueness of the calibration can be identified by assessing the nonsingularity of the Jacobian matrix, and the estimation accuracy of the calibration parameters can be quantified by analyzing the SVD components. A direct application of this method is that the efficacy of a calibration configuration can be quantitatively evaluated by choosing a figure-of-merit, e.g., the minimum required number of projection samplings to achieve desired calibration accuracy. The proposed method was validated with a slit-slat SPECT system through numerical simulation studies and experimental measurements with point sources and an ultra-micro hot-rod phantom. The predicted calibration accuracy from the numerical studies was confirmed by the experimental point source calibrations at approximately 0.1 mm for both the center of rotation (COR) estimation of a rotation stage and the slit aperture position (SAP) estimation of a slit-slat collimator by an optimized system calibration protocol. The reconstructed images of a hot rod phantom showed satisfactory spatial resolution with a proper calibration and showed visible resolution degradation with artificially introduced 0.3 mm COR estimation error. The proposed method can be applied to other SPECT and CT imaging systems to analyze calibration method assessment and calibration protocol

  6. Collapsing floating-point operations

    OpenAIRE

    Defour, David

    2004-01-01

    This paper addresses the issue of collapsing dependent floating-point operations. The presentation focuses on studying the dataflow graph of benchmark involving a large number of floating-point instructions. In particular, it focuses on the relevance of new floating-point operators performing two dependent operations which are similar to "fused multiply and add". Finally, this paper examines the implementation cost and critical path reduction from this strategy.

  7. Pointing Devices for Wearable Computers

    OpenAIRE

    Andrés A. Calvo; Saverio Perugini

    2014-01-01

    We present a survey of pointing devices for wearable computers, which are body-mounted devices that users can access at any time. Since traditional pointing devices (i.e., mouse, touchpad, and trackpoint) were designed to be used on a steady and flat surface they are inappropriate for wearable computers. Just as the advent of laptops resulted in the development of the touchpad and trackpoint, the emergence of wearable computers is leading to the development of pointing devices designed for th...

  8. Structural Perspectives on the Evolutionary Expansion of Unique Protein-Protein Binding Sites.

    Science.gov (United States)

    Goncearenco, Alexander; Shaytan, Alexey K; Shoemaker, Benjamin A; Panchenko, Anna R

    2015-09-15

    Structures of protein complexes provide atomistic insights into protein interactions. Human proteins represent a quarter of all structures in the Protein Data Bank; however, available protein complexes cover less than 10% of the human proteome. Although it is theoretically possible to infer interactions in human proteins based on structures of homologous protein complexes, it is still unclear to what extent protein interactions and binding sites are conserved, and whether protein complexes from remotely related species can be used to infer interactions and binding sites. We considered biological units of protein complexes and clustered protein-protein binding sites into similarity groups based on their structure and sequence, which allowed us to identify unique binding sites. We showed that the growth rate of the number of unique binding sites in the Protein Data Bank was much slower than the growth rate of the number of structural complexes. Next, we investigated the evolutionary roots of unique binding sites and identified the major phyletic branches with the largest expansion in the number of novel binding sites. We found that many binding sites could be traced to the universal common ancestor of all cellular organisms, whereas relatively few binding sites emerged at the major evolutionary branching points. We analyzed the physicochemical properties of unique binding sites and found that the most ancient sites were the largest in size, involved many salt bridges, and were the most compact and least planar. In contrast, binding sites that appeared more recently in the evolution of eukaryotes were characterized by a larger fraction of polar and aromatic residues, and were less compact and more planar, possibly due to their more transient nature and roles in signaling processes.

  9. THREE POINT BOUNDARY VALUE PROBLEMS FOR NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS

    Institute of Scientific and Technical Information of China (English)

    Mujeeb ur Rehman; Rahmat Ali Khan; Naseer Ahmad Asif

    2011-01-01

    In this paper,we study existence and uniqueness of solutions to nonlinear three point boundary value problems for fractional differential equation of the type cDδ0+u(t) =f(t,u(t),cDσ0+u(t)),t ∈[0,T],u(0) =αu(η),u(T) =βu(η),where1 <δ<2,0<σ< 1,α,β∈R,η∈(0,T),αη(1-β)+(1-α)(T-βη) ≠0 and cDoδ+,cDσ0+ are the Caputo fractional derivatives.We use Schauder fixed point theorem and contraction mapping principle to obtain existence and uniqueness results.Examples are also included to show the applicability of our results.

  10. Estimating the melting point, entropy of fusion, and enthalpy of ...

    Science.gov (United States)

    The entropies of fusion, enthalies of fusion, and melting points of organic compounds can be estimated through three models developed using the SPARC (SPARC Performs Automated Reasoning in Chemistry) platform. The entropy of fusion is modeled through a combination of interaction terms and physical descriptors. The enthalpy of fusion is modeled as a function of the entropy of fusion, boiling point, and fexibility of the molecule. The melting point model is the enthlapy of fusion divided by the entropy of fusion. These models were developed in part to improve SPARC's vapor pressure and solubility models. These models have been tested on 904 unique compounds. The entropy model has a RMS of 12.5 J mol-1K-1. The enthalpy model has a RMS of 4.87 kJ mol-1. The melting point model has a RMS of 54.4°C. Published in the journal, SAR and QSAR in Environmental Research

  11. Convergence theorems for fixed points of demicontinuous pseudocontractive mappings

    Directory of Open Access Journals (Sweden)

    Chidume CE

    2005-01-01

    Full Text Available Let be an open subset of a real uniformly smooth Banach space . Suppose is a demicontinuous pseudocontractive mapping satisfying an appropriate condition, where denotes the closure of . Then, it is proved that (i for every ; (ii for a given , there exists a unique path , , satisfying . Moreover, if or there exists such that the set is bounded, then it is proved that, as , the path converges strongly to a fixed point of . Furthermore, explicit iteration procedures with bounded error terms are proved to converge strongly to a fixed point of .

  12. Brocard Point and Euler Function

    Science.gov (United States)

    Sastry, K. R. S.

    2007-01-01

    This paper takes a known point from Brocard geometry, a known result from the geometry of the equilateral triangle, and bring in Euler's [empty set] function. It then demonstrates how to obtain new Brocard Geometric number theory results from them. Furthermore, this paper aims to determine a [triangle]ABC whose Crelle-Brocard Point [omega]…

  13. ATLAS Civil Engineering Point 1

    CERN Multimedia

    Jean-Claude Vialis

    1999-01-01

    Different phases of realisation to Point 1 : zone of the ATLAS experiment The ATLAS experimental area is located in Point 1, just across the main CERN entrance, in the commune of Meyrin. There people are ever so busy to finish the different infrastructures for ATLAS. Real underground video. The film has original working sound.

  14. Improved Dynamic Planar Point Location

    DEFF Research Database (Denmark)

    Brodal, Gerth Stølting; Arge, Lars; Georgiadis, Loukas

    2006-01-01

    We develop the first linear-space data structures for dynamic planar point location in general subdivisions that achieve logarithmic query time and poly-logarithmic update time.......We develop the first linear-space data structures for dynamic planar point location in general subdivisions that achieve logarithmic query time and poly-logarithmic update time....

  15. ATLAS Civil Engineering Point 1

    CERN Multimedia

    Jean-Claude Vialis

    1998-01-01

    Different phases of the PX 15 realisation to Point 1: zone of the ATLAS experiment 19-11-1998 Realisation of the Walkway for PX 15 and the putting up scaffolds 15-01-1999 Film from the surface of Point 1 and descent in the well of PX 15

  16. Mathematical points as didactical ideas

    DEFF Research Database (Denmark)

    Mogensen, Arne

    2012-01-01

    Mathematics teaching in Denmark was recently recommended better organized in sequences with clear mathematical pedagogical goals and a focus on mathematical points. In this paper I define a mathematical point and inform on coding of transcripts in a video based Danish research study on grade 8...

  17. A saddle-point theorem for strongly and weakly convex functions

    NARCIS (Netherlands)

    Ivanov, G. E.

    2011-01-01

    We prove a theorem on the existence, uniqueness, and continuous dependence on parameters for a saddle point in a type of minimax problem that arises, for example, in differential game theory. Our theorem on the existence of a saddle point does not follow from the well-known theorems of von Neumann,

  18. Boundary Unique Continuation Properties for Elliptic Operators With Singular Potentials

    Institute of Scientific and Technical Information of China (English)

    陶祥兴

    2006-01-01

    @@ 0 Introduction Because of applications to control theory, see Schmit and Weck's work in [1], the following unique continuation question (UCP) was raised in [2-3]: if u is a harmonic function in a connected Lipschitz domainΩ, vanishing continuously on an open subset Г of the boundary ( )Ω and whose normal derivative vanishes on a subset of Г of positive surface measure, does it follows that u is identically zero in Ω? On the other hand, the unique continuation problem has been focusing on second order equations in which the coefficients of the lower-order terms are allowed to be singular, which is suggested by situations of physical interest; see for instance the extensive survey papers [4-6].

  19. On the Existence and Uniqueness of the Scientific Method.

    Science.gov (United States)

    Wagensberg, Jorge

    2014-01-01

    The ultimate utility of science is widely agreed upon: the comprehension of reality. But there is much controversy about what scientific understanding actually means, and how we should proceed in order to gain new scientific understanding. Is there a method for acquiring new scientific knowledge? Is this method unique and universal? There has been no shortage of proposals, but neither has there been a shortage of skeptics about these proposals. This article proffers for discussion a potential scientific method that aspires to be unique and universal and is rooted in the recent and ancient history of scientific thinking. Curiously, conclusions can be inferred from this scientific method that also concern education and the transmission of science to others.

  20. Uniqueness of system response time for transient condensing flows

    Energy Technology Data Exchange (ETDEWEB)

    Wedekind, G.L.; Bhatt, B.L. (Oakland Univ., Rochester, MI (United States)); Beck, B.T. (Kansas State Univ., Manhattan (United States)); Roslund, G.L. (General Motors Corp., Detroit, MI (United States))

    1989-11-01

    The unique characteristics under consideration in this paper are encountered in condensing flows, and have to do with a system's response time for various degrees of outlet flow quality. Specifically, the system response time for condensing flows appears to increase monotonically with decreasing outlet flow quality, reaching a maximum for systems having an outlet flow quality of between 10 and 20%. The system response time then decreases for outlet flow qualities that are less than that value. These unique characteristics are predicted theoretically by system mean void fraction model. The purpose of this paper is to develop analytically the characteristics, explain the physics of the phenomena responsible, and discuss the experimental verification efforts that have thus far been carried out.

  1. Solitary intraosseous neurofibroma: Report of a unique case

    Directory of Open Access Journals (Sweden)

    Sagar Satish Jangam

    2014-01-01

    Full Text Available Neural tumors located centrally in jaw bones are relatively rare compared with soft tissue neurofibromas. Less than 50 cases have been reported in the literature with a predilection for mandible. This article aims to elucidate a unique case of intraosseous neurofibroma of mandible in a 62-year-old edentulous female patient associated with facial asymmetry due to the swelling extending from the right body of mandible to left body of mandible. The uniqueness of this case is related to the age and extensiveness of this lesion. A review of clinical, radiographic, histological, and immunohistochemical features, and the surgical management pertaining to this case are discussed along with a review of the literature.

  2. A general Lipschitz uniqueness criterion for scalar ordinary differential equations

    Directory of Open Access Journals (Sweden)

    Josef Diblik

    2014-07-01

    Full Text Available The classical Lipschitz-type criteria guarantee unique solvability of the scalar initial value problem $\\dot x=f(t,x$, $x(t_0=x_0,$ by putting restrictions on $|f(t,x-f(t,y|$ in dependence of $|x-y|$. Geometrically it means that the field differences are estimated in the direction of the $x$-axis. In 1989, Stettner and the second author could establish a generalized Lipschitz condition in both arguments by showing that the field differences can be measured in a suitably chosen direction $v=(d_{t},d_{x}$, provided that it does not coincide with the directional vector $(1,f(t_{0},x_{0}$. Considering the vector $v$ depending on $t$, a new general uniqueness result is derived and a short proof based on the implicit function theorem is developed. The advantage of the new criterion is shown by an example. A comparison with known results is given as well.

  3. Unique Migraine Subtypes, Rare Headache Disorders, and Other Disturbances.

    Science.gov (United States)

    Goadsby, Peter J

    2015-08-01

    The medical aphorism that common things happen commonly makes unique (and less common) migraine subtypes especially appropriate to review for the general neurologist. This article also identifies some rare headache disorders and other disturbances, and offers strategies to manage them. This article discusses migraine with brainstem aura, which is troublesome clinically and has had a change in terminology in the International Classification of Headache Disorders, Third Edition, beta version (ICHD-3 beta), and hemiplegic migraine, which is also troublesome in practice. The rare headache disorder hypnic headache and the exploding head syndrome are also discussed. When hypnic headache is recognized, it is eminently treatable, while exploding head syndrome is a benign condition with no reported consequences. Unique migraine subtypes, rare headache disorders, and other disturbances present to neurologists. When recognized, they can often be managed very well, which offers significant benefits to patients and practice satisfaction to neurologists.

  4. Dusty plasma as a unique object of plasma physics

    Science.gov (United States)

    Norman, G. E.; Timofeev, A. V.

    2016-11-01

    The self-consistency and basic openness of dusty plasma, charge fluctuations, high dissipation and other features of dusty plasma system lead to the appearance of a number of unusual and unique properties of dusty plasma. “Anomalous” heating of dusty particles, anisotropy of temperatures and other features, parametric resonance, charge fluctuations and interaction potential are among these unique properties. Study is based on analytical approach and numerical simulation. Mechanisms of “anomalous” heating and energy transfer are proposed. Influence of charge fluctuations on the system properties is discussed. The self-consistent, many-particle, fluctuation and anisotropic interparticle interaction potential is studied for a significant range of gas temperature. These properties are interconnected and necessary for a full description of dusty plasmas physics.

  5. Unique and conserved features of floral evocation in legumes.

    Science.gov (United States)

    Liew, Lim Chee; Singh, Mohan B; Bhalla, Prem L

    2014-08-01

    Legumes, with their unique ability to fix atmospheric nitrogen, play a vital role in ensuring future food security and mitigating the effects of climate change because they use less fossil energy and produce less greenhouse gases compared with N-fertilized systems. Grain legumes are second only to cereal crops as a source of human and animal food, and they contribute approximately one third of the protein consumed by the human population. The productivity of seed crops, such as grain legumes, is dependent on flowering. Despite the genetic variation and importance of flowering in legume production, studies of the molecular pathways that control flowering in legumes are limited. Recent advances in genomics have revealed that legume flowering pathways are divergent from those of such model species as Arabidopsis thaliana. Here, we discuss the current understanding of flowering time regulation in legumes and highlight the unique and conserved features of floral evocation in legumes.

  6. Unique and conserved features of floral evocation in legumes

    Institute of Scientific and Technical Information of China (English)

    Lim Chee Liew; Mohan B.Singh; Prem L.Bhalla

    2014-01-01

    Legumes, with their unique ability to fix atmo-spheric nitrogen, play a vital role in ensuring future food security and mitigating the effects of climate change because they use less fossil energy and produce less greenhouse gases compared with N-fertilized systems. Grain legumes are second only to cereal crops as a source of human and animal food, and they contribute approximately one third of the protein consumed by the human population. The productivity of seed crops, such as grain legumes, is dependent on flowering. Despite the genetic variation and importance of flowering in legume production, studies of the molecular pathways that control flowering in legumes are limited. Recent advances in genomics have revealed that legume flowering pathways are divergent from those of such model species as Arabidopsis thaliana. Here, we discuss the current understanding of flowering time regulation in legumes and highlight the unique and conserved features of floral evocation in legumes.

  7. Uniqueness of Black Holes with Bubbles in Minimal Supergravity

    CERN Document Server

    Armas, Jay

    2014-01-01

    We generalise uniqueness theorems for non-extremal black holes with three mutually independent Killing vector fields in five-dimensional minimal supergravity in order to account for the existence of non-trivial 2-cycles in the domain of outer communication. The black hole space-times we consider may contain multiple disconnected horizons and be asymptotically flat or asymptotically Kaluza-Klein. We show that in order to uniquely specify the black hole space-time, besides providing its domain structure and a set of asymptotic and local charges, it is necessary to measure the magnetic fluxes that support the 2-cycles as well as fluxes in the two semi-infinite rotation planes of the domain diagram.

  8. A Unique Case of Allogeneic Fat Grafting Between Brothers

    Science.gov (United States)

    Kim, Samuel; Edelson, Richard L.; Sumpio, Brandon; Kwei, Stephanie

    2016-01-01

    Summary: We present a case of a 65-year-old man with cutaneous T-cell lymphoma treated with radiation therapy and an allogeneic hematopoietic stem cell transplant from his human leukocyte antigen-matched brother. Engraftment was successful, but the patient went on to develop painful, radiation-induced ulcers. The ulcers were fat-allografted using liposuctioned fat from his brother because of the patient’s unique chimeric state. Postprocedure follow-up revealed epithelialization of the ulcer sites and significant improvement in neuropathic pain. Our unique case study supports the use of fat grafting for its restorative purposes and for its ability to alleviate chronic neuropathic pain. Additionally, it appears that our case provides a basis of a general approach to the treatment of radiation-induced ulcers in chimeric patients with lymphoid malignancies.

  9. The unique chemical reactivity of a graphene nanoribbon's zigzag edge

    CERN Document Server

    Jiang, D; Sumpter, B G; Dai, Sheng; Jiang, De-en; Sumpter, Bobby G.

    2007-01-01

    The zigzag edge of a graphene nanoribbon possesses a unique electronic state that is near the Fermi level and localized at the edge carbon atoms. We investigate the chemical reactivity of these zigzag edge sites by examining their reaction energetics with common radicals from first principles. A "partial radical" concept for the edge carbon atoms is introduced to characterize their chemical reactivity, and the validity of this concept is verified by comparing the dissociation energies of edge-radical bonds with similar bonds in molecules. In addition, the uniqueness of the zigzag-edged graphene nanoribbon is further demonstrated by comparing it with other forms of sp2 carbons, including a graphene sheet, nanotubes, and an armchair-edged graphene nanoribbon.

  10. Concentration and mindfulness meditations: unique forms of consciousness?

    Science.gov (United States)

    Dunn, B R; Hartigan, J A; Mikulas, W L

    1999-09-01

    Electroencephalographic (EEG) recordings from 19 scalp recording sites were used to differentiate among two posited unique forms of mediation, concentration and mindfulness, and a normal relaxation control condition. Analyzes of all traditional frequency bandwidth data (i.e., delta 1-3 Hz; theta, 4-7 Hz; alpha, 8-12 Hz; beta 1, 13-25 Hz; beta 2, 26-32 Hz) showed strong mean amplitude frequency differences between the two meditation conditions and relaxation over numerous cortical sites. Furthermore, significant differences were obtained between concentration and mindfulness states at all bandwidths. Taken together, our results suggest that concentration and mindfulness "meditations" may be unique forms of consciousness and are not merely degrees of a state of relaxation.

  11. Fixed Points of Multivalued Contractive Mappings in Partial Metric Spaces

    Directory of Open Access Journals (Sweden)

    Abdul Rahim Khan

    2014-01-01

    Full Text Available The aim of this paper is to present fixed point results of multivalued mappings in the framework of partial metric spaces. Some examples are presented to support the results proved herein. Our results generalize and extend various results in the existing literature. As an application of our main result, the existence and uniqueness of bounded solution of functional equations arising in dynamic programming are established.

  12. [International progress of unique device identification for medical devices].

    Science.gov (United States)

    Yang, Wanjuan; Li, Jun; Li, Jingli

    2014-09-01

    Unique Device Identification (UDI) is a hot spot research area in the medical device administration. It comes a breakthrough from International Medical Device Regulators Forum (IMDRF) and government implementation recently. The article reviewed the advancement of IMDRF UDI program, discussed the framework for UDI system, analyzed the implementation of UDI in other countries, put forward some suggestions on the development of medical device coding system in our country.

  13. Recurrent intussusception, coeliac disease and cholelithiasis: A unique combination

    Directory of Open Access Journals (Sweden)

    Sinha C

    2007-01-01

    Full Text Available Authors report an 11-month-old female child, who presented with recurrent episodes of colicky abdominal pain and diarrhea. An abdominal ultrasound revealed small bowel intussusception. She was also noted to have a thick walled gall bladder and a solitary gallstone. Further investigations confirmed the diagnosis of coeliac disease. The combination of small bowel intussusception, coeliac disease and cholelithiasis is unique and has not been reported in the literature.

  14. Unique Aspects of Flight Testing Unmanned Aircraft Systems

    Science.gov (United States)

    2010-04-01

    High Altitude Endurance HCI Human Computer Interface INS Inertial Navigation System IR Infrared JITC Joint Interoperability Testing Command...highlighting some of the unique aspects of flight testing unmanned air vehicle systems. It is intended to provide a practical set of guidelines in support of...of unmanned aviation systems, it is especially important that even minor changes to the baseline code be carefully reviewed, and that regression

  15. The hair color-highlighting burn: a unique burn injury.

    Science.gov (United States)

    Peters, W

    2000-01-01

    A unique, preventable, 2.8 x 3.7-cm, full-thickness scalp burn resulted after a woman underwent a professional color-highlighting procedure at a hair salon. The burn appeared to result from scalp contact with aluminum foil that had been overheated by a hair dryer during the procedure. The wound required debridement and skin grafting and 3 subsequent serial excisions to eliminate the resulting area of burn scar alopecia. The preventive aspects of this injury are discussed.

  16. On Unique Ergodicity in Nonlinear Stochastic Partial Differential Equations

    Science.gov (United States)

    Glatt-Holtz, Nathan; Mattingly, Jonathan C.; Richards, Geordie

    2017-02-01

    We illustrate how the notion of asymptotic coupling provides a flexible and intuitive framework for proving the uniqueness of invariant measures for a variety of stochastic partial differential equations whose deterministic counterpart possesses a finite number of determining modes. Examples exhibiting parabolic and hyperbolic structure are studied in detail. In the later situation we also present a simple framework for establishing the existence of invariant measures when the usual approach relying on the Krylov-Bogolyubov procedure and compactness fails.

  17. Tamponade by an expanding left ventricular pseudoaneurysm: A unique presentation.

    Science.gov (United States)

    Mahesh, Balakrishnan; Ong, Ping; Kutty, Ramesh; Abu-Omar, Yasir

    2015-10-01

    Left ventricular free wall rupture secondary to myocardial infarction is an uncommon but catastrophic event requiring emergency surgery. We describe a unique presentation of left ventricular free wall rupture as delayed tamponade caused by a gradually expanding pseudoaneurysm compressing the left atrium, leading to pulmonary congestion that required increasing respiratory support to maintain oxygenation, and necessitated emergency surgery. We discuss the options available to treat pseudoaneurysms due to left ventricular free wall rupture.

  18. Osteomyelitis variolosa with fracture: A unique case report

    Directory of Open Access Journals (Sweden)

    Pradeep K Singh

    2012-01-01

    Full Text Available Smallpox has been eradicated completely but its unique pathology and sequlae are still found in routine clinical practice. We present a report of a patient having osteomyelitis variolosa in both elbow joints and wrist with fracture of humerus. The condyles were typically elongated as central portion of distal humerus absorbed. The fracture united uneventfully following stabilization with dynamic compression plate and bone grafting. Patient had satisfactory elbow function at the end of the last follow-up.

  19. A uniqueness theorem for higher order anharmonic oscillators

    DEFF Research Database (Denmark)

    Fournais, Soren; Sundqvist, Mikael Persson

    2015-01-01

    We study for alpha is an element of R, k is an element of N \\ {0} the family of self-adjoint operators -d(2)/dt(2) + (t(k+1)/k+1 - alpha)(2) in L-2(R) and show that if k is even then alpha = 0 gives the unique minimum of the lowest eigenvalue of this family of operators. Combined with earlier res...

  20. On Unique Ergodicity in Nonlinear Stochastic Partial Differential Equations

    Science.gov (United States)

    Glatt-Holtz, Nathan; Mattingly, Jonathan C.; Richards, Geordie

    2016-08-01

    We illustrate how the notion of asymptotic coupling provides a flexible and intuitive framework for proving the uniqueness of invariant measures for a variety of stochastic partial differential equations whose deterministic counterpart possesses a finite number of determining modes. Examples exhibiting parabolic and hyperbolic structure are studied in detail. In the later situation we also present a simple framework for establishing the existence of invariant measures when the usual approach relying on the Krylov-Bogolyubov procedure and compactness fails.

  1. A unique case of isolated, spontaneous, symptomatic celiac trunk dissection

    Directory of Open Access Journals (Sweden)

    Craig Ferguson

    2015-01-01

    Full Text Available Cases of isolated spontaneous celiac trunk dissections have been appearing in the literature more recently with the increased availability of high-resolution computerized tomography angiograms. We report a unique case of this entity. A 48-year-old woman presented with acute abdominal pain that radiated to the back and worsened with breathing. This was diagnosed as a celiac trunk dissection by computerized tomography angiogram. She was treated conservatively with antihypertensive medications, anticoagulants, and opioid medication for pain control.

  2. On the stability of unique range sets for meromorphic functions

    CERN Document Server

    Ha Huy Khoai

    2003-01-01

    For a set S we construct a complex space Z sub S such that S is a unique range set for meromorphic functions (URS) if and only if Z sub S is hyperbolic. A consequence of this result is that the set of URS with n elements (considered as a subset of C sup n) is open, and then the small deformations of Yi's and Frank-Reinders' sets are URS.

  3. Unique factorization of tensor products for Kac-Moody algebras

    OpenAIRE

    Venkatesh, R.; Viswanath, Sankaran

    2012-01-01

    We consider integrable, category O-modules of indecomposable symmetrizable Kac-Moody algebras. We prove that unique factorization of tensor products of irreducible modules holds in this category, upto twisting by one dimensional modules. This generalizes a fundamental theorem of Rajan for finite dimensional simple Lie algebras over C. Our proof is new even for the finite dimensional case, and uses an interplay of representation theory and combinatorics to analyze the Kac-Weyl character formula.

  4. The uniqueness-of-norm problem for Calkin algebras

    OpenAIRE

    Skillicorn, Richard

    2015-01-01

    We examine the question of whether the Calkin algebra of a Banach space must have a unique complete algebra norm. We present a survey of known results, and make the observation that a recent Banach space construction of Argyros and Motakis (preprint, 2015) provides the first negative answer. The parallel question for the weak Calkin algebra also has a negative answer; we demonstrate this using a Banach space of Read (J. London Math. Soc. 1989).

  5. A Tandem Valve, a unique complication of TAVR

    OpenAIRE

    Srinivasan Sattiraju; Sanjay Mehta; Mathew Gibb; Scott Cook; Michael Colla; Emil Missov

    2016-01-01

    , MD1*,, MD1,, MD1,, MD2, MD2,, MD, PhD3 1. Division of Cardiology, Carle Heart and Vascular Institute, Carle Hospital, Urbana, IL 2. Cardiovascular Surgery, Carle Heart and Vascular Institute, Carle Hospital, Urbana, IL 3. Division of Cardiology, University of Minnesota Medical Center, Minneapolis, MN Received: 11-1-16, Reviewed: 22-1-16, Accepted: 26-1-16 Keywords: Transcatheter aortic valve replacement, TAVR, Valve embolisation DOI: ABSTRACT We report a unique complica...

  6. The Multiwavelength Study of Two Unique Radio Galaxies

    Indian Academy of Sciences (India)

    Nectaria A. B. Gizani; M. A. Garrett; J. P. Leahy

    2002-03-01

    We present the usage of multi-frequency and multi-band radio, VLA, observations as well as X-ray observations in order to study the environment around two powerful radio galaxies, namely Hercules A and 3 C310. We study their environment both in pc- and kpc-scales. We have chosen these two radio galaxies as they present similar and unique characteristics, compared to the ones from our general knowledge about double radio galaxies associated with active galactic nuclei.

  7. A note on the uniqueness of global static decompositions

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez, Miguel [Departamento de GeometrIa y TopologIa, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071 Granada (Spain); Senovilla, Jose M M [Departamento de Fisica Teorica e Historia de la Ciencia, Facultad de Ciencia y TecnologIa, Universidad del PaIs Vasco, Apartado 644, 48080 Bilbao (Spain)

    2007-12-07

    We discuss when static Killing vector fields are standard, that is, leading to a global orthogonal splitting of the spacetime. We prove that such an orthogonal splitting is unique whenever the natural space is compact. This is carried out by proving that many notable spacelike submanifolds must be contained in an orthogonal slice. Possible obstructions to the global splitting are also considered. (comments, replies and notes)

  8. Unique Properties of Heat Generation in Nanoscale Systems

    Institute of Scientific and Technical Information of China (English)

    周利玲

    2011-01-01

    We study tie unique properties of current-induced heat generation Q in nanostructures and its absence in macroscopic bulks. A lead-quantum dot-lead system is taken into consideration and it is found that its unique properties stem from energy quantization of the system and arise only under conditions of low temperature and weak dot-lead coupling. The relation of Q o I (I is the system current) fails in nanosystems, while the Q peaks align with peaks of phonon-assisted current under small bias. As a result, one can expect a large current accompanied by relatively small Q when the elastic current peak does not coincide with the phonon-assisted one, the ideal working condition for a nanostructure.%We study the unique properties of current-induced heat generation Q in nanostructures and its absence in macroscopic bulks.A lead-quantum dot-lead system is taken into consideration and it is found that its unique properties stem from energy quantization of the system and arise only under conditions of low temperature and weak dotlead coupling.The relation of Q o I(I is the system current)fails in nanosystems,while the Q peaks align with peaks of phonon-assisted current under small bias.As a result,one can expect a large current accompanied by relatively small Q when the elastic current peak does not coincide with the phonon-assisted one,the ideal working condition for a nanostructure.

  9. UNIQUENESS AND DISTRIBUTION OF LIMIT CYCLES FOR BOUNDED QUADRATIC SYSTEM%有界二次系统极限环的唯一性及分布

    Institute of Scientific and Technical Information of China (English)

    宋矞

    2001-01-01

    In this paper, we first give a necessary and sufficient condition of a quadratic system with three finite critical points being bounded, and then, we use the methods and conclusions of [11] to provide some uniqueness theorems of limit cycles for bounded quadratic systems. As well, we prove that any bounded quadratic system can not have (2, 2)-distribution of limit cycles according to these uniqueness theorems.

  10. Uniqueness of the gauge invariant action for cosmological perturbations

    Energy Technology Data Exchange (ETDEWEB)

    Prokopec, Tomislav; Weenink, Jan, E-mail: t.prokopec@uu.nl, E-mail: j.g.weenink@uu.nl [Institute for Theoretical Physics and Spinoza Institute, Utrecht University, Leuvenlaan 4, 3585 CE Utrecht (Netherlands)

    2012-12-01

    In second order perturbation theory different definitions are known of gauge invariant perturbations in single field inflationary models. Consequently the corresponding gauge invariant cubic actions do not have the same form. Here we show that the cubic action for one choice of gauge invariant variables is unique in the following sense: the action for any other, non-linearly related variable can be brought to the same bulk action, plus additional boundary terms. These boundary terms correspond to the choice of hypersurface and generate extra, disconnected contributions to the bispectrum. We also discuss uniqueness of the action with respect to conformal frames. When expressed in terms of the gauge invariant curvature perturbation on uniform field hypersurfaces the action for cosmological perturbations has a unique form, independent of the original Einstein or Jordan frame. Crucial is that the gauge invariant comoving curvature perturbation is frame independent, which makes it extremely helpful in showing the quantum equivalence of the two frames, and therefore in calculating quantum effects in nonminimally coupled theories such as Higgs inflation.

  11. Unique microstructure and excellent mechanical properties of ADI

    Directory of Open Access Journals (Sweden)

    Jincheng Liu

    2006-11-01

    Full Text Available Amongst the cast iron family, ADI has a unique microstructure and an excellent, optimised combination of mechanical properties. The main microstructure of ADI is ausferrite, which is a mixture ofextremely fine acicular ferrite and stable, high carbon austenite. There are two types of austenite in ADI:(1 the coarser and more equiaxed blocks of austenite between non-parallel acicular structures, which exist mainly in the last solidified area, and (2 the thin films of ustenite between the individual ferriteplatelets in the acicular structure. It is this unique microstructure, which gives ADI its excellent static and dynamic properties, and good low temperature impact toughness. The effect of microstructure on the mechanical properties is explained in more detail by examining the microstructure at the atomic scale. Considering the nanometer grain sizes, the unique microstructure, the excellent mechanical properties,good castability, (which enables near net shape components to be produced economically and in large volumes, and the fact that it can be 100% recycled, it is not overemphasized to call ADI a high-tech,nanometer and “green” material. ADI still has the potential to be further improved and its production and the number of applications for ADI will continue to grow, driven by the resultant cost savings over alternative materials.

  12. Plastic-casting intrinsic-surface unique identifier (tag)

    Energy Technology Data Exchange (ETDEWEB)

    Palm, R.G.; De Volpi, A.

    1995-04-01

    This report describes the development of an authenticated intrinsic-surf ace tagging method for unique- identification of controlled items. Although developed for control of items limited by an arms control treaty, this method has other potential applications to keep track of critical or high-value items. Each tag (unique-identifier) consists of the intrinsic, microscopic surface topography of a small designated area on a controlled item. It is implemented by making a baseline plastic casting of the designated tag area and usually placing a cover (for example, a bar-code label) over this area to protect the surface from environmental alteration. The plastic casting is returned to a laboratory and prepared for high-resolution scanning electron microscope imaging. Several images are digitized and stored for use as a standard for authentication of castings taken during future inspections. Authentication is determined by numerically comparing digital images. Commercially available hardware and software are used for this tag. Tag parameters are optimized, so unique casting images are obtained from original surfaces, and images obtained from attempted duplicate surfaces are detected. This optimization uses the modulation transfer function, a first principle of image analysis, to determine the parameters. Surface duplication experiments confirmed the optimization.

  13. Synthetic Biology of Cyanobacteria: Unique Challenges and Opportunities

    Directory of Open Access Journals (Sweden)

    Bertram M Berla

    2013-08-01

    Full Text Available Photosynthetic organisms, and especially cyanobacteria, hold great promise as sources of renewably-produced fuels, bulk and specialty chemicals, and nutritional products. Synthetic biology tools can help unlock cyanobacteria’s potential for these functions, but unfortunately tool development for these organisms has lagged behind that for S. cerevisiae and E. coli. While these organisms may in many cases be more difficult to work with as ‘chassis’ strains for synthetic biology than certain heterotrophs, the unique advantages of autotrophs in biotechnology applications as well as the scientific importance of improved understanding of photosynthesis warrant the development of these systems into something akin to a ‘green E. coli’. In this review, we highlight unique challenges and opportunities for development of synthetic biology approaches in cyanobacteria. We review classical and recently developed methods for constructing targeted mutants in various cyanobacterial strains, and offer perspective on what genetic tools might most greatly expand the ability to engineer new functions in such strains. Similarly, we review what genetic parts are most needed for the development of cyanobacterial synthetic biology. Finally, we highlight recent methods to construct genome-scale models of cyanobacterial metabolism and to use those models to measure properties of autotrophic metabolism. Throughout this paper, we discuss some of the unique challenges of a diurnal, autotrophic lifestyle along with how the development of synthetic biology and biotechnology in cyanobacteria must fit within those constraints.

  14. Unique microstructure and excellent mechanical properties of ADI

    Institute of Scientific and Technical Information of China (English)

    Jincheng Liu

    2006-01-01

    Amongst the cast iron family, ADI has a unique microstructure and an excellent, optimised combination of mechanical properties. The main microstructure of ADI is ausferrite, which is a mixture of extremely fine acicular ferrite and stable, high carbon austenite. There are two types of austenite in ADI:(1) the coarser and more equiaxed blocks of austenite between non-parallel acicular structures, which exist mainly in the last solidified area, and (2) the thin films of austenite between the individual ferrite platelets in the acicular structure. It is this unique microstructure, which gives ADI its excellent static and dynamic properties, and good low temperature impact toughness. The effect of microstructure on the mechanical properties is explained in more detail by examining the microstructure at the atomic scale.Considering the nanometer grain sizes the unique microstructure, the excellent mechanical properties,good castability, (which enables near net shape components to be produced economically and in large volumes), and the fact that it can be 100% recycled, it is not overemphasized to call ADI a high-tech,nanometer and "green" material. ADI still has the potential to be further improved and its production and the number of applications for ADI will continue to grow, driven by the resultant cost savings over altemative materials.

  15. Synthetic biology of cyanobacteria: unique challenges and opportunities.

    Science.gov (United States)

    Berla, Bertram M; Saha, Rajib; Immethun, Cheryl M; Maranas, Costas D; Moon, Tae Seok; Pakrasi, Himadri B

    2013-01-01

    Photosynthetic organisms, and especially cyanobacteria, hold great promise as sources of renewably-produced fuels, bulk and specialty chemicals, and nutritional products. Synthetic biology tools can help unlock cyanobacteria's potential for these functions, but unfortunately tool development for these organisms has lagged behind that for S. cerevisiae and E. coli. While these organisms may in many cases be more difficult to work with as "chassis" strains for synthetic biology than certain heterotrophs, the unique advantages of autotrophs in biotechnology applications as well as the scientific importance of improved understanding of photosynthesis warrant the development of these systems into something akin to a "green E. coli." In this review, we highlight unique challenges and opportunities for development of synthetic biology approaches in cyanobacteria. We review classical and recently developed methods for constructing targeted mutants in various cyanobacterial strains, and offer perspective on what genetic tools might most greatly expand the ability to engineer new functions in such strains. Similarly, we review what genetic parts are most needed for the development of cyanobacterial synthetic biology. Finally, we highlight recent methods to construct genome-scale models of cyanobacterial metabolism and to use those models to measure properties of autotrophic metabolism. Throughout this paper, we discuss some of the unique challenges of a diurnal, autotrophic lifestyle along with how the development of synthetic biology and biotechnology in cyanobacteria must fit within those constraints.

  16. Uniqueness of positive solutions for fractional q-difference boundary-value problems with p-Laplacian operator

    Directory of Open Access Journals (Sweden)

    Fenghua Miao

    2013-07-01

    Full Text Available In this article, we study the fractional q-difference boundary-value problems with p-Laplacian operator $$displaylines{ D_{q}^{gamma}(phi_p(D_{q}^{alpha}u(t + f(t,u(t=0, quad 0 1. By using a fixed-point theorem in partially ordered sets, we obtain sufficient conditions for the existence and uniqueness of positive and nondecreasing solutions.

  17. Building Points - MO 2014 Barton Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  18. Building Points - MO 2014 Camden Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  19. Building Points - MO 2014 Dade Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  20. Building Points - MO 2014 Clark Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  1. Building Points - MO 2014 Audrain Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  2. Building Points - MO 2014 Bates Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  3. Building Points - MO 2014 Benton Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  4. Building Points - MO 2014 Butler Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  5. Geodetic Control Points - Multi-State Control Point Database

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The Multi-State Control Point Database (MCPD) is a database of geodetic and mapping control covering Idaho and Montana. The control were submitted by registered land...

  6. Building Points - MO 2014 Christian Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  7. Building Points - MO 2012 St. Francois Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  8. Building Points - MO 2012 St. Genevieve Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  9. Building Points - MO 2012 Perry Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  10. Building Points - MO 2012 Cape Girardeau Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  11. Building Points - MO 2012 Iron Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  12. Building Points - MO 2012 Madison Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  13. Building Points - MO 2012 Bollinger Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed categorized points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  14. Geodetic Control Points - Multi-State Control Point Database

    Data.gov (United States)

    NSGIC State | GIS Inventory — The Multi-State Control Point Database (MCPD) is a database of geodetic and mapping control covering Idaho and Montana. The control were submitted by registered land...

  15. Building Points - MO 2014 Andrew Structure Points (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Staff at the Geographic Resources Center placed attributed points on all roofed structures visible at a scale of 1:2000 using MSDIS-DOQQ 2008 2-foot aerial imagery...

  16. Evolutionary theory, human uniqueness and the image of God

    Directory of Open Access Journals (Sweden)

    Gijsbert van den Brink

    2012-09-01

    Full Text Available In this article, I examined what might be called the evolutionary argument against human uniqueness and human dignity. After having rehearsed briefly the roots of the classical Judeo- Christian view on human uniqueness and human dignity in the first chapters of Genesis, I went on to explore and delineate the nature of the evolutionary argument against this view. Next, I examined whether Christian theology might widen the concept of imago Dei so as to include other beings as well as humans, thus giving up the idea of human uniqueness. I concluded, however, that this move is deeply problematic. Therefore, I turned to a discussion of some recent attempts to define both human uniqueness and the image of God in theological rather than empirical terms. One of these, which is based on the concept of incarnation, is found wanting, but another one is construed in such a way that it enables us to reconcile the idea of human uniqueness as encapsulated in the doctrine of the imago Dei with contemporary evolutionary theory. Thus, this article can be seen as an exercise in bringing classical Christian theology to terms with evolution, further highlighting this theology’s ongoing vitality.Evolusieteorie, menslike uniekheid and die beeld van God. In hierdie artikel ondersoek ek die sogenaamde evolusionêre argument teen menslike uniekheid en menswaardigheid. Na ‘n kort oorsig oor die oorsprong van die klassieke Joods-Christelike siening van menslike uniekheid en menswaardigheid soos uit die eerste vyf hoofstukke van Genesis blyk, ondersoek en beeld ek die aard van die evolusionêre argument hierteenoor uit. Vervolgens word die vraag ondersoek of die Christelike teologie die konsep van imago Dei sodanig kan verbreed dat dit ook ander wesens behalwe mense kan insluit, waardeur die idee van menslike uniekheid dus prysgegee word. Ek kom egter tot die slotsom dat hierdie skuif hoogs problematies is. Daarom wend ek my tot ’n bespreking van onlangse pogings om

  17. Applications for unique identifiers in the geological sciences

    Science.gov (United States)

    Klump, J.; Lehnert, K. A.

    2012-12-01

    Even though geology has always been a generalist discipline in many parts, approaches towards questions about Earth's past have become increasingly interdisciplinary. At the same time, a wealth of samples has been collected, the resulting data have been stored in in disciplinary databases, the interpretations published in scientific literature. In the past these resources have existed alongside each other, semantically linked only by the knowledge of the researcher and his peers. One of the main drivers towards the inception of the world wide web was the ability to link scientific sources over the internet. The Uniform Resource Locator (URL) used to locate resources on the web soon turned out to be ephemeral in nature. A more reliable way of addressing objects was needed, a way of persistent identification to make digital objects, or digital representations of objects, part of the record of science. With their high degree of centralisation the scientific publishing houses were quick to implement and adopt a system for unique and persistent identification, the Digital Object Identifier (DOI) ®. At the same time other identifier systems exist alongside DOI, e.g. URN, ARK, handle ®, and others. There many uses for persistent identification in science, other than the identification of journal articles. DOI are already used for the identification of data, thus making data citable. There are several initiatives to assign identifiers to authors and institutions to allow unique identification. A recent development is the application of persistent identifiers for geological samples. As most data in the geosciences are derived from samples, it is crucial to be able to uniquely identify the samples from which a set of data were derived. Incomplete documentation of samples in publications, use of ambiguous sample names are major obstacles for synthesis studies and re-use of data. Access to samples for re-analysis and re-appraisal is limited due to the lack of a central

  18. Cleaning Massive Sonar Point Clouds

    DEFF Research Database (Denmark)

    Arge, Lars Allan; Larsen, Kasper Green; Mølhave, Thomas;

    2010-01-01

    We consider the problem of automatically cleaning massive sonar data point clouds, that is, the problem of automatically removing noisy points that for example appear as a result of scans of (shoals of) fish, multiple reflections, scanner self-reflections, refraction in gas bubbles, and so on. We...... describe a new algorithm that avoids the problems of previous local-neighbourhood based algorithms. Our algorithm is theoretically I/O-efficient, that is, it is capable of efficiently processing massive sonar point clouds that do not fit in internal memory but must reside on disk. The algorithm is also...

  19. ATLAS: civil engineering Point 1

    CERN Multimedia

    2000-01-01

    The construction work at point one was a massive site including overground and underground work. Point 1 under construction is worth to see.Tools and machinery used during the construction and the multible scenes with people working in different parts of point1. Scenes from the 3D CAD office and some talking in english. Printing out drawings and later views of the empty tunnel were the LHC accelerator is installed 80m under the surface.The film gives the view to the close history in other words to the time before the installations.

  20. Geometric Computations On Indecisive Points

    DEFF Research Database (Denmark)

    Jørgensen, Allan Grønlund; Phillips, Jeff; Loffler, Maarten

    2011-01-01

    We study computing with indecisive point sets. Such points have spatial uncertainty where the true location is one of a finite number of possible locations. This data arises from probing distributions a few times or when the location is one of a few locations from a known database. In particular......-hard. We generalize our polynomial-time algorithm to all LP-type problems. We also utilize our indecisive framework to deterministically and approximately compute on a more general class of uncertain data where the location of each point is given by a probability distribution....