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Author (up) Allende-Cid, H.; Canessa, E.; Quezada, A.; Allende, H.
Title An Improved Fuzzy Rule-Based Automated Trading Agent Type
Year 2011 Publication Studies In Informatics And Control Abbreviated Journal Stud. Inform. Control
Volume 20 Issue 2 Pages 135-142
Keywords Automated Trading Agents; Fuzzy Rule-based Agents
Abstract In this paper an improved Fuzzy Rule-Based Trading Agent is presented. The proposal consists in adding machine-learning-based methods to improve the overall performance of an automated agent that trades in futures markets. The modified Fuzzy Rule-Based Trading Agent has to decide whether to buy or sell goods, based on the spot and futures time series, gaining a profit from the price speculation. The proposal consists first in changing the membership functions of the fuzzy inference model (Gaussian and Sigmoidal, instead of triangular and trapezoidal). Then using the NFAR (Neuro-Fuzzy Autoregressive) model the relevant lags of the time series are detected, and finally a fuzzy inference system (Self-Organizing Neuro-Fuzzy Inference System) is implemented to aid the decision making process of the agent. Experimental results demonstrate that with the addition of these techniques, the improved agent considerably outperforms the original one.
Address [Allende-Cid, H; Allende, H] Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso 2390123, Chile, Email: vector@inf.utfsm.cl
Corporate Author Thesis
Publisher Natl Inst R&D Informatics-Ici Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1220-1766 ISBN Medium
Area Expedition Conference
Notes WOS:000292015600006 Approved
Call Number UAI @ eduardo.moreno @ Serial 157
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Author (up) Anabalon, A.; Canfora, F.; Giacomini, A.; Oliva, J.
Title Gribov ambiguity in asymptotically AdS three-dimensional gravity Type
Year 2011 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 83 Issue 6 Pages 7 pp
Keywords
Abstract In this paper the zero modes of the de Donder gauge Faddeev-Popov operator for three-dimensional gravity with negative cosmological constant are analyzed. It is found that the AdS(3) vacuum produces (infinitely many) normalizable smooth zero modes of the Faddeev-Popov operator. On the other hand, it is found that the Banados-Teitelboim-Zanelli black hole (including the zero mass black hole) does not generate zero modes. This differs from the usual Gribov problem in QCD where, close to the maximally symmetric vacuum, the Faddeev-Popov determinant is positive definite while "far enough'' from the vacuum it can vanish. This suggests that the zero mass Banados-Teitelboim-Zanelli black hole could be a suitable ground state of three-dimensional gravity with negative cosmological constant. Because of the kinematic origin of this result, it also applies for other covariant gravity theories in three dimensions with AdS(3) as maximally symmetric solution, such as new massive gravity and topologically massive gravity. The relevance of these results for supersymmetry breaking is pointed out.
Address [Anabalon, Andres] Univ Adolfo Ibanez, Dept Ciencias, Fac Artes Liberales, Fac Ingn & Ciencias, Vina Del Mar, Chile, Email: andres.anabalon@uai.cl
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000288449100006 Approved
Call Number UAI @ eduardo.moreno @ Serial 128
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Author (up) Anabalon, A.; Canfora, F.; Giacomini, A.; Oliva, J.
Title Black holes with gravitational hair in higher dimensions Type
Year 2011 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 84 Issue 8 Pages 10 pp
Keywords
Abstract A new class of vacuum black holes for the most general gravity theory leading to second order field equations in the metric in even dimensions is presented. These space-times are locally anti-de Sitter in the asymptotic region, and are characterized by a continuous parameter that does not enter in the conserve charges, nor it can be reabsorbed by a coordinate transformation: it is therefore a purely gravitational hair. The black holes are constructed as a warped product of a two-dimensional space-time, which resembles the r-t plane of the Banados-Teitelboim-Zanelli black hole, times a warp factor multiplying the metric of a D – 2-dimensional Euclidean base manifold, which is restricted by a scalar equation. It is shown that all the Noether charges vanish. Furthermore, this is consistent with the Euclidean action approach: even though the black hole has a finite temperature, both the entropy and the mass vanish. Interesting examples of base manifolds are given in eight dimensions which are products of Thurston geometries, giving then a nontrivial topology to the black hole horizon. The possibility of introducing a torsional hair for these solutions is also discussed.
Address [Anabalon, A] Univ Adolfo Ibanez, Dept Ciencias, Fac Artes Liberales, Fac Ingn & Ciencias, Vina Del Mar, Chile, Email: andres.anabalon@uai.cl
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000296527000003 Approved
Call Number UAI @ eduardo.moreno @ Serial 173
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Author (up) Anabalon, A.; Deruelle, N.; Tempo, D.; Troncoso, R.
Title Remarks On The Myers-Perry And Einstein-Gauss-Bonnet Rotating Solutions Type
Year 2011 Publication International Journal Of Modern Physics D Abbreviated Journal Int. J. Mod. Phys. D
Volume 20 Issue 5 Pages 639-647
Keywords Myers-Perry; Einstein-Gauss-Bonnet; rotating solutions
Abstract The Kerr-type solutions of the five-dimensional Einstein and Einstein-Gauss-Bonnet equations look pretty similar when written in Kerr-Schild form. However the Myers-Perry spacetime is circular whereas the rotating solution of the Einstein-Gauss-Bonnet theory is not. We explore some consequences of this difference in particular regarding the (non) existence of Boyer-Lindquist-type coordinates and the extension of the manifold.
Address [Anabalon, Andres] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Fac Artes Liberales, Dept Ciencias, Vina Del Mar, Chile
Corporate Author Thesis
Publisher World Scientific Publ Co Pte Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0218-2718 ISBN Medium
Area Expedition Conference
Notes WOS:000290813500004 Approved
Call Number UAI @ eduardo.moreno @ Serial 145
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Author (up) Aquea, F.; Vega, A.; Timmermann, T.; Poupin, M.J.; Arce-Johnson, P.
Title Genome-wide analysis of the SET DOMAIN GROUP family in Grapevine Type
Year 2011 Publication Plant Cell Reports Abbreviated Journal Plant Cell Reports
Volume 30 Issue 6 Pages 1087-1097
Keywords Grapes; Vitis vinifera; Chromatin remodeling; Histone methyltransferase
Abstract The SET DOMAIN GROUP (SDG) proteins represent an evolutionarily-conserved family of epigenetic regulators present in eukaryotes and are putative candidates for the catalysis of lysine methylation in histones. Plant genomes analyses of this family have been performed in arabidopsis, maize, and rice and functional studies have shown that SDG genes are involved in the control of plant development. In this work, we describe the identification and structural characterization of SDG genes in the Vitis vinifera genome. This analysis revealed the presence of 33 putative SDG genes that can be grouped into different classes, as it has been previously described for plants. In addition to the SET domain, the proteins identified possessed other domains in the different classes. As part of our study regarding the growth and development of grapevine, we selected eight genes and their expression levels were analyzed in representative vegetative and reproductive organs of this species. The selected genes showed different patterns of expression during inflorescence and fruit development, suggesting that they participate in these processes. Furthermore, we showed that the expression of selected SDGs changes during viral infection, using as a model Grapevine Leafroll Associated Virus 3-infected symptomatic grapevine leaves and fruits. Our results suggest that developmental changes caused by this virus could be the result of alterations in SDG expression.
Address [Aquea, Felipe; Arce-Johnson, Patricio] Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Genet Mol & Microbiol, Santiago, Chile, Email: parce@bio.puc.cl
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0721-7714 ISBN Medium
Area Expedition Conference
Notes WOS:000290542800013 Approved
Call Number UAI @ eduardo.moreno @ Serial 184
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Author (up) Arias, M.B.; Poupin, M.J.; Lardies, M.A.
Title Plasticity of life-cycle, physiological thermal traits and Hsp70 gene expression in an insect along the ontogeny: Effect of temperature variability Type
Year 2011 Publication Journal Of Thermal Biology Abbreviated Journal J. Therm. Biol.
Volume 36 Issue 6 Pages 355-362
Keywords Chill-coma; Recovery time; Complex life-cycle; Trade-off; Thermotolerance; Development plasticity
Abstract It is considered that extreme environmental temperature, rather than mean temperatures exert a selective pressure in ectotherms. Consequently, it is important to understand how the predicted increase in temperature variance with a higher frequency of extreme events in climate change is likely to impact on organisms. Thermal tolerance traits (i.e. chill-coma, recovery time, Hsp70 expression) are directly linked with performance in ectotherms and have consequences in life-history traits. We examined the effects of temperature variability on thermal tolerance and life-history traits through ontogeny of an insect with a complex life-cycle: the yellow mealworm beetle Tenebrio molitor. We established two common gardens with 100 recently ovoposited eggs each. Larvae were reared from hatching to adult on either a variable (mean=18 degrees C and a variance of 6.8 degrees C) or constant (18 +/- 1 degrees C) thermal environment. Development rate and growth rate were similar between thermal environments. Results indicate that larvae reared in a variable environment are more cold-tolerant than larvae of a constant environment. Interestingly, these results are reversed in the adult stage, outlining an inter-stage physiological cost. Gene expression pattern of an Hsp70 gene was well correlated with larval thermotolerance to cold in the variable environment but higher gene expression in adults is not correlated with individual's thermotolerance. We conclude that chill-coma, recovery time and Hsp70 gene expression are plastic in response to a thermal environment but also change significantly their responses depending on the ontogenetic stage, implying that the response of adult individuals is linked to early stages of the life-cycle. (C) 2011 Elsevier Ltd. All rights reserved,
Address [Arias, MB; Lardies, MA] Univ Adolfo Ibanez, Fac Artes Liberales, Dept Ciencias, Santiago, Chile, Email: marco.lardies@uai.cl
Corporate Author Thesis
Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0306-4565 ISBN Medium
Area Expedition Conference
Notes WOS:000295018400009 Approved
Call Number UAI @ eduardo.moreno @ Serial 168
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Author (up) Bustamante, M.; Lefranc, G.
Title Degradation Model Of Breast Imaging By Dispersed Radiation Type
Year 2011 Publication Proceedings Of The Romanian Academy Series A-Mathematics Physics Technical Sciences Information Science Abbreviated Journal Proc. Rom. Acad. Ser. A-Math. Phys.
Volume 12 Issue 4 Pages 347-352
Keywords Mammogram; Microcalcification; Computer Vision; Cancer analysis
Abstract This paper presents a model of interaction of radiation on breast, based on Bosso's filter. This model is used to improve mammographic images for early cancer diagnosis, to be more accurate and to detect cluster of microcalcifications. The model is based on degradation of breast image produced by dispersed radiation using the Bosso's filter, developed earlier.
Address [Bustamante, Miguel] Univ Adolfo Ibanez, Fac Ingn, Recreo, Chile, Email: miguel.bustamante@uai.cl
Corporate Author Thesis
Publisher Editura Acad Romane Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1454-9069 ISBN Medium
Area Expedition Conference
Notes WOS:000298771700012 Approved
Call Number UAI @ eduardo.moreno @ Serial 189
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Author (up) Chandia, O.
Title The b ghost of the pure spinor formalism is nilpotent Type
Year 2011 Publication Physics Letters B Abbreviated Journal Phys. Lett. B
Volume 695 Issue 1-4 Pages 312-316
Keywords b ghost; Ghost; Nilpotent; Spinor formalism
Abstract The ghost for world-sheet reparametrization invariance is not a fundamental field in the pure spinor formalism. It is written as a combination of pure spinor variables which have conformal dimension two and such that it commutes with the BRST operator to give the world-sheet stress tensor. We show that the ghost variable defined in this way is nilpotent since the OPE of b with itself does not have singularities. (C) 2010 Elsevier B.V. All rights reserved.
Address [Chandia, Osvaldo] Univ Adolfo Ibanez, Dept Ciencias, Fac Artes Liberales, Santiago, Chile, Email: osvaldo.chandia@uai.cl
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0370-2693 ISBN Medium
Area Expedition Conference
Notes WOS:000286708700058 Approved
Call Number UAI @ eduardo.moreno @ Serial 139
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Author (up) Chandia, O.; Linch, W.D.; Vallilo, B.C.
Title Compactification of the heterotic pure spinor superstring II Type
Year 2011 Publication Journal Of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume Issue 10 Pages 22 pp
Keywords Superstrings and Heterotic Strings; Superstring Vacua
Abstract We study compactifications of the heterotic pure spinor superstring to six and four dimensions focusing on two simple Calabi-Yau orbifolds. We show that the correct spectrum can be reproduced only if, in the twisted sector, there remain exactly 5 and 2 pure spinor components untwisted, respectively. This naturally defines a “small” Hilbert space of untwisted variables. We point out that the cohomology of the reduced differential on this small Hilbert space can be used to describe the states in the untwisted sector, provided certain auxiliary constraints are defined. In dimension six, the mismatch between the number of pure spinor components in the small Hilbert space and the number of components of a six-dimensional pure spinor is interpreted as providing the projective measure on the analytic subspace (in the projective description) of harmonic superspace.
Address [Chandia, Osvaldo] Univ Adolfo Ibanez, Dept Ciencias, Fac Artes Liberales, Santiago, Chile, Email: ochandiaq@gmail.com
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1029-8479 ISBN Medium
Area Expedition Conference
Notes WOS:000296917300023 Approved
Call Number UAI @ eduardo.moreno @ Serial 180
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Author (up) Clerc, M.G.; Rica, S.; Tredicce, J.
Title Instabilities and Non-equilibrium Structures. On the occasion of the 60th birthday of Pierre Coullet Type
Year 2011 Publication European Physical Journal D Abbreviated Journal Eur. Phys. J. D
Volume 62 Issue 1 Pages 1-4
Keywords
Abstract
Address [Clerc, M. G.] Univ Chile, FCFM, Dept Fis, Santiago, Chile, Email: sergio.rica@gmail.com
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1434-6060 ISBN Medium
Area Expedition Conference
Notes WOS:000289735000001 Approved
Call Number UAI @ eduardo.moreno @ Serial 142
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Author (up) Dauelsberg, P.; Matus, J.T.; Poupin, M.J.; Leiva-Ampuero, A.; Godoy, F.; Vega, A.; Arce-Johnson, P.
Title Effect of pollination and fertilization on the expression of genes related to floral transition, hormone synthesis and berry development in grapevine Type
Year 2011 Publication Journal Of Plant Physiology Abbreviated Journal J. Plant Physiol.
Volume 168 Issue 14 Pages 1667-1674
Keywords Anthesis; ASB1; Berry flesh; Embryo development; Flower patterning; L1L; Parthenocarpy
Abstract In the present work, the effect of assisted fertilization on anatomical, morphological and gene expression changes occurring in carpels and during early stages of berry development in Vitis vinifera were studied. Inflorescences were emasculated before capfall, immediately manually pollinated (EP) and fruit development was compared to emasculated but non-pollinated (ENP) and self-pollinated inflorescences (NESP). The diameter of berries derived from pollinated flowers (EP and NESP) was significantly higher than from non-pollinated flowers (ENP) at 21 days after emasculation/pollination (DAE), and a rapid increase in the size of the inner mesocarp, together with the presence of an embryo-like structure, were observed. The expression of gibberellin oxidases (GA200x and GA2ox), anthranilate synthase (related to auxin synthesis) and cytokinin synthase coding genes was studied to assess the relationship between hormone synthesis and early berry development, while flower patterning genes were analyzed to describe floral transition. Significant expression changes were found for hormone-related genes, suggesting that their expression at early stages of berry development (13 DAE) is related to cell division and differentiation of mesocarp tissue at a later stage (21 DAE). Expression of hormone-related genes also correlates with the expression of VvHB13, a gene related to mesocarp expansion, and with an increased repression of floral patterning genes (PISTILLATA and TM6), which may contribute to prevent floral transition inhibiting fruit growth before fertilization takes place. (C) 2011 Elsevier GmbH. All rights reserved.
Address [Dauelsberg, P; Matus, JT; Leiva-Ampuero, A; Godoy, F; Vega, A; Arce-Johnson, P] Pontificia Univ Catolica Chile, Dept Mol Genet & Microbiol, Santiago, Chile, Email: parce@bio.puc.cl
Corporate Author Thesis
Publisher Elsevier Gmbh, Urban & Fischer Verlag Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0176-1617 ISBN Medium
Area Expedition Conference
Notes WOS:000294832300008 Approved
Call Number UAI @ eduardo.moreno @ Serial 161
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Author (up) Domic, N.G.; Goles, E.; Rica, S.
Title Dynamics and complexity of the Schelling segregation model Type
Year 2011 Publication Physical Review E Abbreviated Journal Phys. Rev. E
Volume 83 Issue 5 Pages 13 pp
Keywords
Abstract In this paper we consider the Schelling social segregation model for two different populations. In Schelling's model, segregation appears as a consequence of discrimination, measured by the local difference between two populations. For that, the model defines a tolerance criterion on the neighborhood of an individual, indicating wether the individual is able to move to a new place or not. Next, the model chooses which of the available unhappy individuals really moves. In our work, we study the patterns generated by the dynamical evolution of the Schelling model in terms of various parameters or the initial condition, such as the size of the neighborhood of an inhabitant, the tolerance, and the initial number of individuals. As a general rule we observe that segregation patterns minimize the interface of zones of different people. In this context we introduce an energy functional associated with the configuration which is a strictly decreasing function for the tolerant people case. Moreover, as far as we know, we are the first to notice that in the case of a non-strictly-decreasing energy functional, the system may segregate very efficiently.
Address [Goles Domic, Nicolas] Univ Tecn Federico Santa Maria, Dept Informat, Santiago, Chile
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1539-3755 ISBN Medium
Area Expedition Conference
Notes WOS:000290725800001 Approved
Call Number UAI @ eduardo.moreno @ Serial 146
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Author (up) Donoso, R.A.; Perez-Pantoja, D.; Gonzalez, B.
Title Strict and direct transcriptional repression of the pobA gene by benzoate avoids 4-hydroxybenzoate degradation in the pollutant degrader bacterium Cupriavidus necator JMP134 Type
Year 2011 Publication Environmental Microbiology Abbreviated Journal Environ. Microbiol.
Volume 13 Issue 6 Pages 1590-1600
Keywords
Abstract As other environmental bacteria, Cupriavidus necator JMP134 uses benzoate as preferred substrate in mixtures with 4-hydroxybenzoate, strongly inhibiting its degradation. The mechanism underlying this hierarchical use was studied. A C. necator benA mutant, defective in the first step of benzoate degradation, is unable to metabolize 4-hydroxybenzoate when benzoate is also included in the medium, indicating that this substrate and not one of its catabolic intermediates is directly triggering repression. Reverse transcription polymerase chain reaction analysis revealed that 4-hydroxybenzoate 3-hydroxylase-encoding pobA transcripts are nearly absent in presence of benzoate and a fusion of pobA promoter to lacZ reporter confirmed that benzoate drastically decreases the transcription of this gene. Expression of pobA driven by a heterologous promoter in C. necator benA mutant, allows growth on 4-hydroxybenzoate in presence of benzoate, overcoming its repressive effect. In contrast with other bacteria, regulators of benzoate catabolism do not participate in repression of 4-hydroxybenzoate degradation. Moreover, the effect of benzoate on pobA promoter can be observed in heterologous strains with the sole presence of PobR, the transcriptional activator of pobA gene, indicating that PobR is enough to fully reproduce the phenomenon. This novel mechanism for benzoate repression is probably mediated by direct action of benzoate over PobR.
Address [Donoso, Raul A.; Gonzalez, Bernardo] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago, Chile, Email: bernardo.gonzalez@uai.cl
Corporate Author Thesis
Publisher Wiley-Blackwell Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1462-2912 ISBN Medium
Area Expedition Conference
Notes WOS:000291268900018 Approved
Call Number UAI @ eduardo.moreno @ Serial 147
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Author (up) Feo-Valero, M.; Garcia-Menendez, L.; Garrido-Hidalgo, R.
Title Valuing Freight Transport Time using Transport Demand Modelling: A Bibliographical Review Type
Year 2011 Publication Transport Reviews Abbreviated Journal Transp. Rev.
Volume 31 Issue 5 Pages 625-651
Keywords
Abstract The value of time for freight transport is of major importance in infrastructure-related cost-benefit analysis and yet its study has been largely neglected when compared with its passenger counterpart. In fact, one of the attributes that could decide the profitability of a project is how much can be saved if freight vehicles use new infrastructure. Despite being the primary benefit of most investments in transport infrastructure, researchers have not yet reached agreement over either the size or the nature of the values of time that should be used when evaluating projects. This article provides a review of the estimation of freight value of time through transport demand modelling and extant empirical evidence on this topic. Similarly, the bibliographic review of studies undertaken has allowed us to pinpoint the most critical issues when modelling freight transport demand and the position of various research teams regarding these aspects. Such issues include identifying the decision-maker, heterogeneity in the transport flows and transport attributes considered by decision-makers.
Address [Feo-Valero, Maria] Fdn Valenciaport, Valencia 46024, Spain, Email: mfeo@fundacion.valenciaport.com
Corporate Author Thesis
Publisher Taylor & Francis Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0144-1647 ISBN Medium
Area Expedition Conference
Notes WOS:000299922000005 Approved
Call Number UAI @ eduardo.moreno @ Serial 199
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Author (up) Galanopoulos, P.; Girela, D.; Hernandez, R.
Title Univalent Functions, VMOA and Related Spaces Type
Year 2011 Publication Journal Of Geometric Analysis Abbreviated Journal J. Geom. Anal.
Volume 21 Issue 3 Pages 665-682
Keywords Univalent functions; VMOA; Bloch function; Besov spaces; Logarithmic Bloch spaces; Logarithmic derivative; Schwarzian derivative; Smooth Jordan curve
Abstract This paper is concerned mainly with the logarithmic Bloch space B(log) which consists of those functions f which are analytic in the unit disc D and satisfy sup(|z|<1)(1-|z|) log 1/1-|z| |f' (z)|<infinity, and the analytic Besov spaces Bp, 1 <= p < infinity. They are all subspaces of the space VMOA. We study the relation between these spaces, paying special attention to the membership of univalent functions in them. We give explicit examples of: A bounded univalent function in U(p>1) B(P) Bp but not in the logarithmic Bloch space. A bounded univalent function in B(log) but not in any of the Besov spaces B(p) with p < 2. We also prove that the situation changes for certain subclasses of univalent functions. Namely, we prove that the convex univalent functions in D which belong to any of the spaces B(0), VMOA, B(p) (1 <= p <= infinity), Blog, or some other related spaces are the same, the bounded ones. We also consider the question of when the logarithm of the derivative, log g', of a univalent function g belongs to Besov spaces. We prove that no condition on the growth of the Schwarzian derivative Sg of g guarantees log g' is an element of B(p). On the other hand, we prove that the condition integral(D) (1-|z|(2))(2p-2) |Sg(z)|(p) d A(z)<infinity implies that log g' is an element of B(p) and that this condition is sharp. We also study the question of finding geometric conditions on the image domain g(D) which imply that log g' lies in Bp. First, we observe that the condition of g( D) being a convex Jordan domain does not imply this. On the other hand, we extend results of Pommerenke and Warschawski, obtaining for every p is an element of (1, infinity), a sharp condition on the smoothness of a Jordan curve Gamma which implies that if g is a conformal mapping from D onto the inner domain of Gamma, then log g' is an element of B(p).
Address [Galanopoulos, P; Girela, D] Univ Malaga, Fac Ciencias, Dept Anal Matemat, E-29071 Malaga, Spain, Email: galanopoulos_petros@yahoo.gr
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1050-6926 ISBN Medium
Area Expedition Conference
Notes WOS:000291745600009 Approved
Call Number UAI @ eduardo.moreno @ Serial 154
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Author (up) Garcia-Echauri, S.A.; Gidekel, M.; Gutierrez-Moraga, A.; Santos, L.; De Leon-Rodriguez, A.
Title Isolation and phylogenetic classification of culturable psychrophilic prokaryotes from the Collins glacier in the Antarctica Type
Year 2011 Publication Folia Microbiologica Abbreviated Journal Folia Microbiol.
Volume 56 Issue 3 Pages 209-214
Keywords
Abstract Culturable psychrophilic prokaryotes were obtained of samples of glacier sediment, seaside mud, glacier melted ice, and Deschampsia antarctica rhizosphere from Collins glacier, Antarctica. The taxonomic classification was done by a culture-dependent molecular approach involving the Amplified Ribosomal DNA Restriction Analysis. Two hundred sixty colonies were successfully isolated and sub-cultivated under laboratory conditions. The analysis showed a bacterial profile dominated by Beta-proteobacteria (35.2%) followed by Gamma-proteobacteria (18.5%), Alpha-proteobacteria (16.6%), Gram-positive with high GC content (13%), Cytophaga-Flavobacterium-Bacteroides (13%) and Gram-positive with low GC content (3.7%). Eleven of the isolates have been reported previously and the others microorganisms remain uncharacterized. The isolated microorganisms here could be a potential source for biotechnological products, such as cold-active enzymes and secondary metabolites.
Address [Garcia-Echauri, S. A.; Santos, L.; De Leon-Rodriguez, A.] Inst Potosino Invest Cient & Tecnol AC IPICYT, Div Mol Biol, San Luis Potosi 78216, SLP, Mexico, Email: aleonr@ipicyt.edu.mx
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0015-5632 ISBN Medium
Area Expedition Conference
Notes WOS:000292564200004 Approved
Call Number UAI @ eduardo.moreno @ Serial 185
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Author (up) Goldstein-Daruech, N.; Cope, E.K.; Zhao, K.Q.; Vukovic, K.; Kofonow, J.M.; Doghramji, L.; Gonzalez, B.; Chiu, A.G.; Kennedy, D.W.; Palmer, J.N.; Leid, J.G.; Kreindler, J.L.; Cohen, N.A.
Title Tobacco Smoke Mediated Induction of Sinonasal Microbial Biofilms Type
Year 2011 Publication Plos One Abbreviated Journal PLoS One
Volume 6 Issue 1 Pages 7 pp
Keywords
Abstract Cigarette smokers and those exposed to second hand smoke are more susceptible to life threatening infection than nonsmokers. While much is known about the devastating effect tobacco exposure has on the human body, less is known about the effect of tobacco smoke on the commensal and commonly found pathogenic bacteria of the human respiratory tract, or human respiratory tract microbiome. Chronic rhinosinusitis (CRS) is a common medical complaint, affecting 16% of the US population with an estimated aggregated cost of $6 billion annually. Epidemiologic studies demonstrate a correlation between tobacco smoke exposure and rhinosinusitis. Although a common cause of CRS has not been defined, bacterial presence within the nasal and paranasal sinuses is assumed to be contributory. Here we demonstrate that repetitive tobacco smoke exposure induces biofilm formation in a diverse set of bacteria isolated from the sinonasal cavities of patients with CRS. Additionally, bacteria isolated from patients with tobacco smoke exposure demonstrate robust in vitro biofilm formation when challenged with tobacco smoke compared to those isolated from smoke naive patients. Lastly, bacteria from smoke exposed patients can revert to a non-biofilm phenotype when grown in the absence of tobacco smoke. These observations support the hypothesis that tobacco exposure induces sinonasal biofilm formation, thereby contributing to the conversion of a transient and medically treatable infection to a persistent and therapeutically recalcitrant condition.
Address [Goldstein-Daruech, Natalia; Zhao, Ke-Qing; Kofonow, Jennifer M.; Doghramji, Laurel; Chiu, Alexander G.; Kennedy, David W.; Palmer, James N.; Cohen, Noam A.] Univ Penn, Dept Otorhinolaryngol Head & Neck Surg, Philadelphia, PA 19104 USA, Email: cohenn@uphs.upenn.edu
Corporate Author Thesis
Publisher Public Library Science Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1932-6203 ISBN Medium
Area Expedition Conference
Notes WOS:000286511900008 Approved
Call Number UAI @ eduardo.moreno @ Serial 117
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Author (up) Goles, E.; Guillon, P.; Rapaport, I.
Title Traced communication complexity of cellular automata Type
Year 2011 Publication Theoretical Computer Science Abbreviated Journal Theor. Comput. Sci.
Volume 412 Issue 30 Pages 3906-3916
Keywords Cellular automata; Communication complexity
Abstract We study cellular automata with respect to a new communication complexity problem: each of two players know half of some finite word, and must be able to tell whether the state of the central cell will follow a given evolution, by communicating as little as possible between each other. We present some links with classical dynamical concepts, especially equicontinuity, expansivity, entropy and give the asymptotic communication complexity of most elementary cellular automata. (C) 2011 Elsevier B.V. All rights reserved.
Address [Guillon, P; Rapaport, I] Univ Chile, DIM CMM, CNRS, UMI 2807, Santiago, Chile, Email: eric.chacc@uai.cl
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3975 ISBN Medium
Area Expedition Conference
Notes WOS:000292589800009 Approved
Call Number UAI @ eduardo.moreno @ Serial 152
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Author (up) Goles, E.; Meunier, P.E.; Rapaport, I.; Theyssier, G.
Title Communication complexity and intrinsic universality in cellular automata Type
Year 2011 Publication Theoretical Computer Science Abbreviated Journal Theor. Comput. Sci.
Volume 412 Issue 1-2 Pages 2-21
Keywords Cellular automata; Communication complexity; Intrinsic universality
Abstract The notions of universality and completeness are central in the theories of computation and computational complexity. However, proving lower bounds and necessary conditions remains hard in most cases. In this article, we introduce necessary conditions for a cellular automaton to be “universal”, according to a precise notion of simulation, related both to the dynamics of cellular automata and to their computational power. This notion of simulation relies on simple operations of space-time rescaling and it is intrinsic to the model of cellular automata. intrinsic universality, the derived notion, is stronger than Turing universality, but more uniform, and easier to define and study. Our approach builds upon the notion of communication complexity, which was primarily designed to study parallel programs, and thus is, as we show in this article, particulary well suited to the study of cellular automata: it allowed us to show, by studying natural problems on the dynamics of cellular automata, that several classes of cellular automata, as well as many natural (elementary) examples, were not intrinsically universal. (C) 2010 Elsevier B.V. All rights reserved.
Address [Meunier, P. -E.; Theyssier, G.] Univ Savoie, CNRS, LAMA, F-73376 Le Bourget Du Lac, France, Email: guillaume.theyssier@univ-savoie.fr
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3975 ISBN Medium
Area Expedition Conference
Notes WOS:000285952400002 Approved
Call Number UAI @ eduardo.moreno @ Serial 118
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Author (up) Goles, E.; Moreira, A.; Rapaport, I.
Title Communication complexity in number-conserving and monotone cellular automata Type
Year 2011 Publication Theoretical Computer Science Abbreviated Journal Theor. Comput. Sci.
Volume 412 Issue 29 Pages 3616-3628
Keywords Cellular automata; Communication complexity; Elementary cellular automata; Number-conserving
Abstract One third of the elementary cellular automata (CAs) are either number-conserving (NCCAs) or monotone (increasing or decreasing). In this paper we prove that, for all of them, we can find linear or constant communication protocols for the prediction problem. In other words, we are able to give a succinct description for their dynamics. This is not necessarily true for general NCCAs. In fact, we also show how to explicitly construct, from any CA, a new NCCA which preserves the original communication complexity. (C) 2011 Elsevier B.V. All rights reserved.
Address [Moreira, A] Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso, Chile, Email: eric.chacc@uai.cl
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3975 ISBN Medium
Area Expedition Conference
Notes WOS:000292077200019 Approved
Call Number UAI @ eduardo.moreno @ Serial 153
Permanent link to this record