Geometric realizations and duality for Dahmen-Micchelli modules and De Concini-Procesi-Vergne modules

We give an algebraic description of several modules and algebras related to the vector partition function, and we prove that they can be realized as the equivariant K-theory of some manifolds that have a nice combinatorial description. We also propose a more natural and general notion of duality between these modules, which corresponds to a Poincar\'e duality-type correspondence for equivariant K-theory.Comment: Final version, to appear on Discrete and Computational Geometr

HIKING MAPS AT SCALE 1:25.000: CARTOGRAPHIC ATLAS OF TRENTINO

Il Trentino, provincia alpina a grande vocazione turistica, è oggetto di particolare interesse da parte di numerose case editrici, che ne rappresentano il territorio con mosaici di carte topografiche a carattere escursionistico. A questo vasto panorama editoriale si è aggiunto un nuovo soggetto, che si presenta con una produzione cartografica dall’aspetto innovativo per i nostri giorni. Il proposito di rappresentare tutto il territorio di una provincia in maniera unitaria, ha suggerito la pubblicazione di una raccolta ordinata di carte in forma di Atlante, nel solco della tradizione cinque-seicentesca, con i contenuti della moderna cartografia. Grazie alla tipica dimensione dell’Atlante di 26x36 cm, si è potuto suddividere il territorio in 198 tavole di 24x28 cm alla scala 1:25.000. Questa scelta editoriale ha permesso la contemporanea pubblicazione di 99 tavole cartografiche alla medesima scala, stampate su entrambi i lati del foglio, che piegati nel formato tascabile di 8,7x12 cm compongono un cofanetto che raccoglie le stesse tavole dell’Atlante. Il contenuto del volume comprende, oltre alle 198 tavole cartografiche a carattere escursionistico, alcuni elenchi di supporto alla ricerca ed utilizzo delle tavole stesse: il Catasto completo dei sentieri gestito dalla Società degli Alpinisti Tridentini (SAT), sezione territoriale del Club Alpino Italiano (CAI), comprendente 918 sentieri segnalati per un totale di oltre 5000 chilometri, con i riferimenti alle tavole dell’Atlante; l’indicazione di 18 trekking che si snodano sul territorio trentino; un corposo indice dei toponimi delle realtà fisiche ed antropiche, ricco di più di 14.000 voci, con il rimando alle tavole relative.The size of the Atlas is 26x36 cm and allow divide the territory in 198 maps of 24x28 cm with the scale 1:25.000, with a total of 240 pages. This editorial choice has allowed also the publication of 99 maps with the same scale, printed on both side of a sheet. This sheet, folded in the pocket-size format 8,7x12 cm form a casket that gather the same maps of the Atlas.The volume include also some index to support the search and the use of the 198 hiking maps: the full cadaster of the paths administrated by the S.A.T., a territorial part of the C.A.I (Italian Alpin Club). The cadaster include 918 paths extended for more than 5000 kilometer, with the reference to the maps of the Atlas; the indication of 18 trekking on the territory of Trentino; a big index of the toponyms of the physical and anthropic reality, with more than 14.000 items, with the indication to the relative maps

Remote sounding of atmospheric layer motions for site testing and photon propagation properties

This thesis is divided into two main arguments: the first is a satellite study of a planetary atmosphere and the second is a study of the propagation properties of photons in the atmosphere. The study of the atmosphere is made through the analysis of satellite data. The satellites are divided into two main groups: polar satellites and geostationary satellites. Polar satellites have an orbit around the Earth at an altitude of about 800 km, they pass over the same site twice every 24 hours and have a field of view that looks at the entire globe of the Earth. Geostationary satellites orbit above a fixed point at an altitude of about 35000 km, they have a temporal resolution of the order of minutes, and they have a field of view of a single hemisphere. For this reason the geostationary systems are composed of a pair of satellites so as to cover the entire globe. In this thesis the satellite data analysis of Earth's atmosphere has the main purpose of the site testing. We base the analysis on the study of data from the geostationary satellite GOES12. In particular, we describe a new model for a complete study of the Earth's atmosphere. This model studies the cloud cover, but for some selected sites it includes also some indications on atmospheric phenomena such as winds, fog, dust and high humidity. It also allows a short and long term statistical forecast of the observing conditions of the site and a qualitative analysis of the seeing. We correlate the cloud cover data with the data from the MODIS polar satellite. This allows a mutual assessment of the results obtained from the two satellites belonging to the two main satellite groups. The combined analysis of a geostationary satellite and a polar satellite allows us to fill the respective limits of the two satellite groups. In the second part we analyze the photon propagation properties in the free atmosphere: we see in detail how the photon propagation time changes in a medium. We also analyze the geometrical and physical distortions of these photon paths. In particular, we describe a new model for the photon delay time in the atmosphere and to derive the seeing from this delay time fluctuations. Finally, we describe the design of a new tool for the ground layer seeing analysis

Multi-year total ozone column variability at three Norwegian sites and the influence of Northern Hemisphere Climatic indices

Total ozone column (TOC) measurements are retrieved from the Ozone Monitoring Instrument (OMI) onboard the NASA Earth Observing System (EOS) Aura satellite at the three Norwegian sites: Oslo (59.9 degrees N 10.7 degrees E, 1 m a.s. l.), Trondheim (63.4 degrees N 10.4 degrees E, 3 m a.s.l.) and Andoya (69.1 degrees N 15.7 degrees E, 32 m a.s.l.). TOC data have been analysed from 2005 to 2021, in order to detect annual and multi-years total ozone variability. The relationship between geopotential height (GPH) at 250 hPa and total ozone column has been evaluated after showing that monthly anomalies in GPH and TOC are correlated amongst the three sites. The influence of the three Northern Hemisphere Tele Connection (TC) indices (North Atlantic Oscillation, Arctic Oscillation and Scandinavia) on TOC variability has been investigated. It is found that Scandinavia index plays a prominent role for the northernmost latitudes of Andoya and Trondheim while North Atlantic Oscillation and Arctic Oscillation indices are weakly correlated (negatively) to TOC and (positively) to GPH at Oslo. The response of TOC variability to the solar activity at the three sites is also explored and it is noticed that in the period of increasing variation of solar activity, significant TOC anomaly events are only observed in Andoya and Trondheim

Fraction of clear skies above astronomical sites: a new analysis from the GOES12 satellite

Comparing the number of clear nights (cloud free) available for astronomical observations is a critical task because it should be based on homogeneous methodologies. Current data are mainly based on different judgements based on observer logbooks or on different instruments. In this paper we present a new homogeneous methodology on very different astronomical sites for modern optical astronomy, in order to quantify the available night time fraction. The data are extracted from night time GOES12 satellite infrared images and compared with ground based conditions when available. In this analysis we introduce a wider average matrix and 3-Bands correlation in order to reduce the noise and to distinguish between clear and stable nights. Temporal data are used for the classification. In the time interval 2007-2008 we found that the percentage of the satellite clear nights is 88% at Paranal, 76% at La Silla, 72.5% at La Palma, 59% at Mt. Graham and 86.5% at Tolonchar. The correlation analysis of the three GOES12 infrared bands B3, B4 and B6 indicates that the fraction of the stable nights is lower by 2% to 20% depending on the site

Efeitos do hipertireoidismo no desempenho do músculo cardíaco, na pressão arterial e na concentração de corticosterona fecal de ratos

Orientador : Prof. Dr. Rosalvo T.H. FogaçaCo-orientador : Prof. Dr. Helton Estrela RamosTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Biologia Celular e Molecular. Defesa: Curitiba, 01/11/2011Inclui referênciasResumo: Introducao: Os hormonios tireoideanos (HT) exercem uma ampla gama de influencias no sistema cardiovascular. Os genes relacionados com o acoplamento excitacao - contracao (AEC) do coracao sao os principais alvos para TH, resultando em efeitos inotropicos e lusitropicos positivos. No hipertireoidismo (Hy) tem sido mostrado um aumento no desempenho cardiaco, seguido a longo prazo, por uma diminuicao na eficiencia cardiaca, alem de uma alteracao na resistencia vascular periferica (RVPT). No entanto, poucos estudos fisiologicos tem sido realizados em modelo animal para investigar as consequencias da Hy no coracao, pressao arterial e secrecao de corticosterona. Objetivo: Avaliar o desempenho cardiaco "in vivo" e "in vitro" e os niveis de corticosterona fecais usando um modelo animal de Hy. Metodos e materiais: Inducao de Hy em ratos Wistar foi feita atraves de injecoes i.p. de T3 (200ƒÊg/kg) durante 1 dias (grupo hipertireoideo - GH) ou veiculo (grupo controle - GC). Apos as injecoes, o desempenho cardiaco foi avaliado por: ecocardiografia (5500 Sonos, HP) com S12 (5-12 MHz) e 15L6 (7 - 15 MHz); medicao direta da pressao arterial sistolica (PAS) e diastolica (PAD) por meio de canulacao da arteria carotida esquerda (WPI - World instrumento de precisao, Inc., modelo BLPR); peso do coracao / peso corporal (mg / gr); peso da glandula supra . renal / peso corporal (mg / gr); concentracao de corticosterona fecal (CF) e contratilidade musculos papilares isolados (MPI ). Resultados: Em HG, o ecocardiograma mostrou reducao do volume sistolico final (VSF), volume diastolico final (VDF), tempo de ejecao (TE), Tempo diastolico total (TDT), Tempo de relaxamento isovolumetrico (TRIV), Area diastolica (Diast. area), area sistolica (Syst. area), variavel A e relacao E/A (p <0,05); frequencia cardiaca (FC), fracao de ejecao (FE) e debito cardiaco (DC) foram aumentados (p <0,05). Nao houve alteracao entre os grupos no tempo de contracao isovolumetrica (TICV), debito sistolico (DS), indice de Tei e tempo de desaceleracao da onda E (p . 0,05). Niveis de pressao arterial sistolica foram maiores no GH (p . 0,05). A relacao Peso do coracao / peso corporal (mg / g) foi maior no GH (p . 0,05) e nao houve diferenca estatistica na relacao peso supra-renal / peso corporal (mg / g). A concentracao de CF foi diferente apenas no quinto dia de tratamento. No MPI nao houve diferencas estatisticamente significativas na forca de contracao (mN/mm2) e potenciacao pos pausa (1, 3, 5, 10 e 20 segundos) em qualquer uma das concentracoes de calcio extracelular utilizadas (p . 0,05). Contudo, relacao concentracao extracelular de calcio versus forca foi maior no GH. A velocidade maxima de desenvolvimento da forca durante a contracao (dF / dtmax) foi maior apenas no 2 mM de calcio extracelular (p . 0,05). No entanto, a velocidade maxima de diminuicao da forca durante o relaxamento (dF / dtmin) foi maior em todas as concentracoes de calcio extracelular, exceto em 10 mM (p . 0,05). Conclusao: o Hy aumenta o DC devido a um aumento da frequencia cardiaca, aumenta a contratilidade como mostrado ela reducao do VDF, VSF, TRIV, TE e TDT, aumento da FE, bem como a maior sensibilidade ao calcio extracelular e PAS e acelera o relaxamento como mostrado pela maior dF / dtmin do MPI e a reducao do TRIV e TDT, bem como nao afeta a concentracao de corticosterona fecal.Abstract: Introduction: Thyroid hormones (TH) exert a broad range of influences in the cardiovascular system. The genes related to excitation contraction . coupling (ECC) of the heart are the main targets for TH, resulting in inotropic and lusitropic positive effects. In the hyperthyroidism (Hy) has been showed an increase in the cardiac performance, followed in a long term, by a decrease in the cardiac efficiency, besides an alteration in the peripheral vascular resistance (PVR). However, few physiological studies have been performed in animal model to investigate the consequences of Hy in the heart, arterial blood pressures and corticosterone secretion. Objective: Evaluate the cardiac performance gin vivo h and gin vitro h and supra-renal activity using an animal model of Hy. Materials e Methods: Induction of Hy in Wistar rats was made through i.p. injections of T3 (200ƒÊg/kg) daily for 10 days (hyperthyroid group - HG) or vehicle (control group - CG). After the injections, cardiac performance was evaluated by: echocardiography (5500 Sonos, HP) with S12 (5 . 12 MHz) and 15L6 (7 . 15 MHz); direct measurement of systolic and diastolic blood pressure through cannulation of left carotid artery (WPI-World Precision Instrument, Inc., model BLPR); heart weight/body weight (mg/gr); supra . renal weight/body weight (mg/gr); fecal corticosterone (FC) concentration and contractility of isolated papillary muscles (IPM). Results: In HG, the echocardiography showed reduction of the End Systolic Volume (ESV), End Diastolic Volume (EDV), Ejection Time (ET), Total Diastolic Time (TDT), Isovolumic Relaxation Time (IRT), Diastolic Area (Diast. area), Systolic area (Syst. area), A variable and E/A ratio (p < 0.05); Heart Rate (HR), Ejection Fraction (EF) and Cardiac Output (CO) were increased (p < 0.05). There was no alteration between groups in the Isovolumic Contraction Time (ICT), Systolic Output (SO), Tei index and deceleration time of E wave (p . 0.05). Systolic blood pressure levels were higher in the HG (p . 0.05). Heart weight/body weight (mg/gr) relationship was higher in the HG (p . 0.05) with no statistically significant difference in the supra.renal weight/body weight (mg/gr). FC concentration was different only on the fifth day of treatment. In IPM there were no statistically significant differences in the twitch force (mN/mm2) and pos extra systolic potentiation (1, 3, 5, 10 and 20 seconds) in any of the extracellular calcium concentrations used (p . 0,05). However, force versus extracellular calcium concentration relationship was higher in the HG. The maximum rate of force evelop ent during contraction (dF/dtmax) was higher only at 2 mM of extracellular calcium (p . 0.05). However, the maximum rate of force decay during relaxation (dF/dtmin) was higher in all extracellular calcium concentrations, except at 10 mM (p . 0.05). Conclusion: Hy increases the CO due to an increase in the HR, increases contractility as showed by the reduction in the EDV, ESV, IRT, ET and TDT, the increased EF as well as the higher sensitivity to extracellular calcium and SBP and accelerates relaxation as showed by the higher dF/dtmin of IPM and IRT and TDT reductions as well as does not affect the supra-renal corticosterone excretion