In Ecclesiis Benedicite Domino

Soitinnus: Sekakuorot (2), soitinyhtye, urut.

O Bone Jesu

Soitinnus: Sekakuoro.

Roma al tempo di Caravaggio.1600-1630

Quan l’any 1602 el pintor i tractadista Federico Zuccari publicà L’Ideade’pittori, scultori et architetti, Caravaggio ja havia radicalitzat el seu llenguatge versun fort naturalisme, al qual afegia un tractament de forts contrastos lumínics patent enl’obra, dos anys més tardana, que inaugura la mostra: La verge de Loreto, tambéconeguda com la Verge del peregrins. Davant el procés creatiu de Zuccari basat en laIdea, es a dir el disegno interno de bellesa, Caravaggio pren la realitat com a modeltrencant així amb el manierisme reformat que, a la Roma papal, te la seva plasmació al’Oratori dels Gonfalone on el citat tractadista hi va participar. D’altra banda la novamanera caravaggesca es contraria a la proposada per Annibale Carracci al programa dela Galeria Farnese i, alhora, per la defensada per tota la tractadística italiana del segleXVII, des de Giovanni Battista Agucchi, en el seu Tractat de la pintura(1607-1615),fins a Giovan Pietro Bellori en el seu discurs L’Idea del pittore, dello scultore edell’architetto, scelta dalle bellezze naturali superiore alla natura que seguint els vellsprincipis de la Poètica defensen que l’obra d’art ha de tenir versemblança, ha d’imitar els millors i pot corregir la realitat. No es estrany, doncs, que Agucchi posi comexemple a seguir l’art d’Annibale Carracci i que compari a Caravaggio amb l’escultorgrec Demetri, que va seguir tant al peu de la lletra la semblança que no va tenirconsideració per la bellesa.

Métodos de preparação e atividade biológica do ácido quinolínico e derivados

In 1981 2,3-pyridine dicarboxylic acid (quinolinic acid) was discovery to be a selective agonist for the N-methyl -D-aspartic acid (NMDA) receptor. As a consequence it possesses neurotoxic activity resulting from overstimulation of the receptor. Quinolinic acid is implicated as an etiological factor in a range of neurodegenerative disease including AIDS related dementia, Huntington´s disease and Lyme disease. In the design of novel therapies to treat these diseases, some molecules have been identified as an important target. In this paper we described different methods to prepare quinolinic acid and derivatives.

Qual o sítio de reação? Um experimento computacional

A computational quantum chemistry experiment is described on the determination of the most reactive atom in a molecule for a reaction. The reaction studied was the S N2 of 4-(dimethylamino)pyridine and methyl iodide. Several indexes (HOMO coefficent, (c), charges, (q), nucleophilic softness, (s+), and Fukui index, (f+)) were employed to verify which correctly describe what nitrogen will react. The calculations were made by AM1 and HF/STO-3G methods. The correct reactivity order is only reproduced by s+ and f+. The lack of agreement of FMO based indexes was discussed.

Distribution Patterns of Soil Properties in a Rural Mediterranean Area in Northeastern Spain

Soil properties on the Cap de Creus Peninsula, NE Spain depend primarily on scarce agricultural practices and early abandonment. In the study area, 90% of which is mainly covered by Cistus shrubs, 8 environments representing variations in land use/land cover and soil properties at different depths were identified. In each environment variously vegetated areas were selected and sampled. The soils, collected at different depths, were classified as Lithic Xerorthents according to the United States Department of Agriculture system of soil classification (USDA-NRCS 1975). Differences in soil properties were largely found according to the evolution of the plant canopy and the land use history. To identify underlying patterns in soil properties related to environmental evolution, factor analysis was performed and factor scores were used to determine how the factor patterns varied between soil variables, soil depths and selected environments. The three-factor model always accounted for 80% of the total variation in the data at the different soil depths. Organic matter was the more relevant soil property at 0–2 cm depth, whereas active minerals (silt and clay) were found to be the most relevant soil parameters controlling soil dynamics at the other depths investigated. Results showed that vineyards and olive tree soils are poorly developed and present worse conditions for mineral and organic compounds. Analysis of factor scores allowed independent assessment of soils, depth and plant cover and demonstrated that soils present the best physico-chemical characteristics under Erica arborea and meadows. In contrast, soils under Cistus monspeliensis were less nutrient rich and less well structured

Efeitos de substituintes na ligação de hidrogênio do 3-hidroxipropenal

The effect of substituents on the energies and geometries of 3-hydroxypropenal was studied using the B3LYP/6-311++G(d,p) model. The hydrogen bond energies indicate that the strongest donors and the weakest acceptors present the highest and the weakest hydrogen bonds, respectively, indicating the validity of the Madsen RAHB model. Geometric parameters indicate that the intensity of the hydrogen bond is proportional to the resonance, as suggested by the RHAB model. The effect of substituents diverges from the model proposed by Gilli et al. Sometimes the results indicate that the donor or acceptor effect is more important than the point of substitution.

[Don Juan]

Digitoitu 8. 9. 2008.

The Detector Control Systems for the CMS Resistive Plate Chamber at LHC

The RPC Detector Control System (RCS) is the main subject of this PhD work. The project, involving the Lappeenranta University of Technology, the Warsaw University and INFN of Naples, is aimed to integrate the different subsystems for the RPC detector and its trigger chain in order to develop a common framework to control and monitoring the different parts. In this project, I have been strongly involved during the last three years on the hardware and software development, construction and commissioning as main responsible and coordinator. The CMS Resistive Plate Chambers (RPC) system consists of 912 double-gap chambers at its start-up in middle of 2008. A continuous control and monitoring of the detector, the trigger and all the ancillary sub-systems (high voltages, low voltages, environmental, gas, and cooling), is required to achieve the operational stability and reliability of a so large and complex detector and trigger system. Role of the RPC Detector Control System is to monitor the detector conditions and performance, control and monitor all subsystems related to RPC and their electronics and store all the information in a dedicated database, called Condition DB. Therefore the RPC DCS system has to assure the safe and correct operation of the sub-detectors during all CMS life time (more than 10 year), detect abnormal and harmful situations and take protective and automatic actions to minimize consequential damages. The analysis of the requirements and project challenges, the architecture design and its development as well as the calibration and commissioning phases represent themain tasks of the work developed for this PhD thesis. Different technologies, middleware and solutions has been studied and adopted in the design and development of the different components and a big challenging consisted in the integration of these different parts each other and in the general CMS control system and data acquisition framework. Therefore, the RCS installation and commissioning phase as well as its performance and the first results, obtained during the last three years CMS cosmic runs, will be

Sínteses totais das crocacinas A, C e D: novos antibióticos isolados de Chondromyces crocatus e Chondromyces pediculatus

This review describes the endeavors that led to the total synthesis of a novel class of antibiotic compounds: the crocacins A-D. Other aspects such as isolation, structural elucidation as well as the biological activities are also presented.

Efecte del tipus i ús del sòl sobre l’ estabilitat de l’ estructura del sòl

Aquest projecte es va plantejar amb l’objectiu de poder relacionar les característiquesparticulars d’un sòl (material original del qual prové i paràmetres edàfics) i els diferents usos a que pot estar sotmès amb la susceptibilitat a ser erosionat. Per portar a terme aquest estudi, es varen escollir quatre tipus de sòls formats sobre material geològic divers: Sant Dalmai format sobre material volcànic, Orfes format sobre material calcari, Pedret i Marzà situat també sobre material calcari i Vilajuïga, característic per ser un sòl sorrenc. En cada un d’ells es van escollir tres sòls sotmesos a diferents usos a estudiar: agrícola, pastura i bosc

Estudo comparativo de técnicas de screening para avaliação da atividade anti-bacteriana de extratos brutos de espécies vegetais e de substâncias puras

In this work, the effectiveness of four screening techniques (three techniques of the diffusion method and one microdilution broth method) were compared. Evaluated were the ethanolic and dichloromethanic extracts of Miconia rubiginosa (Melastomataceae) against six standard bacteria (ATCC). The results showed statistical disagreement among the three diffusion techniques. Among the diffusion techniques, the well technique displayed the best result. However the microdilution broth method demonstrated to be the most adequate method to evaluate the antibacterial activity of plant crude extracts and pure compounds when compared to the other methodologies.