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Weighted Inequalities for Fractional Type Operators with Some Homogeneous Kernels

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Acta Mathematica Sinica,English Series 2013年第3期29卷 449-460页

作者： María Silvina RIVEROS Marta URCIUOLO FaMAF-UNC CIEM-CONICET Ciudad Universitaria

In this paper, we study integral operators of the formappropriate weighted BMO and weak type estimates for certain weights satisfying the above inequality. We also give a Coifman type estimate for these operators.

关键词： Fractional operators Calderon-Zygmund operators BMO Muckenhoupt weights

Singular Integrals with Variable Kernels in Dyadic Settings

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Acta Mathematica Sinica,English Series 2023年第8期39卷 1565-1579页

作者： Hugo AIMAR Raquel CRESCIMBENI Luis NOWAK IMAL-conicet and UNL Santa FeArgentina Departamento de Matemática FaEAUNCo.and IITCI-CONICETNeuquenArgentina

In this paper we explore conditions on variable symbols with respect to Haar systems,defining Calderón–Zygmund type operators with respect to the dyadic metrics associated to the Haar bases. We show that Petermichl’s dyadic kernel can be seen as a variable kernel singular integral and we extend it to dyadic systems built on spaces of homogeneous type.

关键词： Singular integrals spaces of homogeneous type Petermichl’s operator Haar basis

A novel E153X point mutation in the androgen receptor gene in a patient with complete androgen insensitivity syndrome

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Asian Journal of Andrology 1999年第1期1卷 73-77页

作者： Silvia B Copelli Serge Lumbroso Francoise Audran Eliana H Pellizzari Juan J Heinrich Selva B Cigorraga Charles Sultan Héctor E Chemes Laboratore d'Hormonologie Hopital Lapeyronie et INSER U 439 Pathologie des recepteurs nucleaires.Unite d'Endocrinologie et Gynecologie PediatriquesHopital A.de VillenetiveMontpellier-France cedie-conicet Division de EndocrinologtaHospital de Niflos"Ricardo Gutierrez"Buenos AiresArgentina

Aim:To study a 46,XY newborn patient with a phenotype suggestive of an androgen insensitivity syndrome toconfirn an anomaly in the AR ***:Genomic DNA from leukocytes was isolated in order to analyze SRYgene by PCR and sequencing of the eight exons of AR *** of human Leydig cell mesenchymal precursorsfrom the testis was performed in order to study testosterone production and response to hCG stimulation in ***:Surgical exploration disclosed two testes,no Wolffian structures and important Mullerian *** gene was present in peripheral blood *** of the AR gene evidenced a previously unreported Gto T transversion in exon 1 that changed the normal glutamine 153 codon to a stop *** cell culturesproduced sizable amounts of testosterone and were responsive to hCG ***:This E153X nonsensepoint mutation has not been described previously in cases of AIS,and could lead to the synthesis of a short truncated(153 vs 919 residues)non functional AR probably responsible for the phenotype of complete androgen insensitivitysyndrome(CAIS).

关键词： testicular feminization androgen receptor point mutation Mullerian ducts

A novel E153X point mutation in the androgen receptor gene in a patient with complete androgen insensitivity syndrome

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Asian Journal of Andrology 1999年第Z1期 73-77页

作者： Silvia B Copelli,SergeLumbroso,FrancoiseAudran,ElianaHPellizzari,JuanJHeinrich,SelvaBCigorraga,Charles Sultan,HéctorEChemes Laboratore d'Hormonologie Hopital Lapeyronie et INSER U 439 Pathologie des recepteurs nucleaires. Unite d'Endocrinologie et Gynecologie Pediatriques Hopital A. de Villenetive Montpellier-France cedie-conicet Division de Endocrinologta Hospital de Niflos "Ricardo Gutierrez" Buenos Aires Argentina Laboratoire d'Hormonologie Hopital Lapeyronie et INSERM U 439 Pathologie des recepteurs nucleaires. Unie d'Endocrinologie et Gynecologie Pediatriques Hopital A. de Villeuve Montpellier-France Laboratoire d'Hormonologie Hopital Lapeyronie et INSERM U 439 Pathologie des recepteurs nucleaires. Unie d'Endocrinologie et Gynecologie Pediatriques Hopital A. de Villeuve Montpellier-France cedie-conicet Division de Endocrinologia Hospital de Nifios "Ricardo Gutierrez" Buenos Aires Argentina cedie-conicet Division de Endocrinologia Hospital de Nifios "Ricardo Gutierrez" Buenos Aires Argentina cedie-conicet Division de Endocrinologia Hospital de Nifios "Ricardo Gutierrez" Buenos Aires Argentina Laboratoire d'Hormonologie Hopital Lapeyronie et INSERM U 439 Pathologie des recepteur nucleaires. Unite d'Endocrinologie et Gynecologie Pediatriques Hopital A. de Villenuve Montpellier-France cedie-conicet Division de Endocrinologia Hospital de Niflos "Ricardo Gutierrez" Buenos Aires Argentina

Aim: To study a 46, XY newborn patient with a phenotype suggestive of an androgen insensitivity syndrome toconfirn an anomaly in the AR gene. Methods: Genomic DNA from leukocytes was isolated in order to analyze SRYgene by PCR and sequencing of the eight exons of AR gene. Isolation of human Leydig cell mesenchymal precursorsfrom the testis was performed in order to study testosterone production and response to hCG stimulation in ***: Surgical exploration disclosed two testes, no Wolffian structures and important Mullerian derivatives. TheSRY gene was present in peripheral blood leukocytes. Sequencing of the AR gene evidenced a previously unreported Gto T transversion in exon 1 that changed the normal glutamine 153 codon to a stop codon. Interstitial cell culturesproduced sizable amounts of testosterone and were responsive to hCG stimulation. Conclusion: This E153X nonsensepoint mutation has not been described previously in cases of AIS, and could lead to the synthesis of a short truncated(15

关键词： testicular feminization androgen receptor point mutation Mullerian ducts

Changes in call properties of Boana pulchella (Anura, Hylidae) in response to different noise conditions

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Current Zoology 2024年第4期70卷 548-556页

作者： Pablo Grenat Maria Ferrero Mariana Baraquet Favio Pollo Manuel Otero Zulma Salinas Nancy Salas Adolfo Martino Ecologia Departamento de Ciencias NaturalesFacultad de Ciencias ExactasFisico-Quimicas y NaturalesUniversidad Nacional de Rio CuartoRutaNacional N°36-km601X5804BYARioCuartoArgentina lnstituto de Ciencias de la Tierra Biodiversidad y Ambiente(ICBIA)UNRC-CONICETRuta Nacional N°36-km 601X5804BYARio CuartoArgentina Cátedra de Botanica General Departamento de Recursos Naturales y AmbienteFacultad de AgronomiaUniversidad de Buenos AiresAv.San Martin 4453Buenos AiresArgentina

The increasing expansion of urban areas leads to the emergence of new noisy environments that can affect animal *** play a crucial role in the mating displays of anurans,and the negative impact of anthropogenic noise-induced auditory masking has been reported in several *** investigated the acoustic variation in 96 males(n=971 calls)of the treefrog Boana pulchella across acoustically undis-turbed sites and different noise conditions,associated with urban areas(URBAN)and roads(ROAD),in Central *** analyzed the effect of anthropogenic noise conditions on 6 temporal(call duration[CD],intercall interval,first and second note duration,internote interval,and call rate)and 3 spectral(dominant frequency of first and second note,frequency difference between them)call *** effects of temperature and size on acoustical variables were *** observed differences in all call attributes among the noise conditions,except for intercall *** exposed to URBAN and ROAD exhibited significant changes in CD,dominant frequency of the second note,and fre-quency difference between *** males had longest internote interval,while ROAD individuals displayed increased first and second note duration and call ***,ROAD males exhibited immediate changes in call rate in direct response to passing heavy *** study emphasizes the impact of anthropogenic noise on the acoustic characteristics of *** *** how animals adapt to noisy environments is crucial in mitigating the adverse effects of urbanization on their communication *** investigations should explore whether the observed call adjustments are effective in avoiding or mitigating the negative consequences of anthropogenic noise on reproductive success.

关键词： acoustic communication advertisement call auditory masking noise pollution road traffic noise.

Evaluation of design schemes for urban squares in arid climate cities,Mendoza,Argentina

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Building Simulation 2021年第3期14卷 763-777页

作者： Susana Stocco Maria Alicia Canton Erica Correa INAHE-Instituto de Ambiente Habitat yEnergia-CONICETMendozaArgentina

The design of urban squares in the city of Mendoza,Argentina,is based on aesthetic and landscaping criteria without consider strategies to enhance the benefits that green areas generate on the city's micrometeorological *** paper aims to evaluate different design alternatives with the purpose to determine which proportion and distribution of green and sealed areas contributes to achieve the best conditions in terms of thermal behavior and ***-met software was used to simulate thermal conditions over twenty three scenarios,and COMFA method was employed to determine comfort in the scenarios that show the best thermal behaviour and are representative of current design *** results show that the most effective scheme for the memorial squares rehabilitation is the one concentrating 60%of woodlot around a sealed center with an area that does not exceed 20%the square *** effective alternative is the one concentrating 60%of woodlot at the center of the *** findings highlight the importance of an adequate relation between proportion and distribution of woodlot/sealed areas to improve thermal performance and comfort conditions of open spaces.

关键词： design of urban squares effective scheme of design alternativas de diseno proportion green/sealed distribution green/sealed

The influence of canopy-layer composition on understory plant diversity in southern temperate forests

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Forest Ecosystems 2017年第2期4卷 154-166页

作者： Luciana Mestre Monica Toro-Manriquez Rosina Soler Alejandro Huertas-Herrera Guillermo Martinez-Pastur Maria Vanessa Lencinas National Scientific and Technical Research Council (conicet) Austral Center for Scientific Research (CADIC-CONICET) Houssay 200 9410 Ushuaia Tierradel Fuego Argentina

Background： Understory plants represents the largest component of biodiversity in most forest ecosystems and plays a key role in forest *** their importance, the influence of overstory-layer composition on understory plant diversity is relatively poorly understood within deciduous-evergreen broadleaved mixed *** aim of this work was to evaluate how tree overstory-layer composition influences on understory-layer diversity in three forest types（monospecific deciduous Nothofagus pumilio（Np）, monospecific evergreen Nothofagus betuloides（Nb）, and mixed ***（M） forests）, comparing also between two geographical locations（coast and mountain） to estimate differences at landscape ***： We recorded 46 plant species： 4 ferns, 12 monocots, and 30 ***-layer composition influences the herb-layer structure and diversity in two different ways： while mixed forests have greater similarity to evergreen forests in the understory structural features, deciduous and mixed were similar in terms of the specific composition of plant *** pure stands were the most diverse, meanwhile evergreen stands were least *** of exclusive species of mixed forest could represent a transition where evergreen and deciduous communities meet and ***, landscape has a major influence on the structure, diversity and richness of understory vegetation of pure and mixed forests likely associated to the magnitude and frequency of natural disturbances, where mountain forest not only had highest herb-layer diversity but also more exclusive ***： Our study suggests that mixed Nothofagus forest supports coexistence of both pure deciduous and pure evergreen understory plant species and different assemblages in coastal and mountain *** the mixture of canopy patch types within mixed stands will be important for conserving the natural patterns of understory plant composition in southern beech mixe

关键词： Landscape Understory communities Understory structure Forest structure Nothofagus Conservation

WEIGHTED BEST LOCAL APPROXIMATION IN ORLICZ SPACE

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Analysis in Theory and Applications 2008年第3期24卷 225-236页

作者： S. Favier C. Ridolfi conicet and University

We present a common fixed point theorem for generalized asymptotically non- expansive and noncommuting mappings in normed linear spaces.

关键词： best local approximation φ-approximations balanced integers

Human Interaction Dynamics for Its Use in Mobile Robotics:Impedance Control for Leader-follower Formation

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IEEE/CAA Journal of Automatica Sinica 2017年第4期4卷 696-703页

作者： Daniel Herrera Flavio Roberti Marcos Toibero Ricardo Carelli Instituto de Automatica Universidad Nacional de San Juan-conicet IEEE

A complete characterization of the behavior in human-robot interactions(HRI) includes both: the behavioral dynamics and the control laws that characterize how the behavior is regulated with the perception data. In this way, this work proposes a leader-follower coordinate control based on an impedance control that allows to establish a dynamic relation between social forces and motion error. For this, a scheme is presented to identify the impedance based on fictitious social forces, which are described by distance-based potential *** part of the validation procedure, we present an experimental comparison to select the better of two different fictitious force structures. The criteria are determined by two qualities: least impedance errors during the validation procedure and least parameter variance during the recursive estimation ***, with the best fictitious force and its identified impedance,an impedance control is designed for a mobile robot Pioneer 3AT,which is programmed to follow a human in a structured *** to results, and under the hypothesis that moving like humans will be acceptable by humans, it is believed that the proposed control improves the social acceptance of the robot for this kind of interaction.

关键词： Human modeling human-machine interaction impedance control robot dynamics social robotics