Search results for "cristo"
showing 10 items of 50 documents
Batch-to-Melt Conversion Kinetics in Sodium Aluminosilicate Batches Using Different Alumina Raw Materials
2016
The batch-to-melt conversion in batches of sand, soda ash and corundum (C), alumina spinel (A), boehmite (B), or gibbsite (G) as Al2O3 carrier are studied using thermal analysis, X-ray diffraction, and 27Al nuclear magnetic resonance spectroscopy. Laboratory-scaled batches are either heated continuously or quenched from 1600°C in a series of increasing dwell times. The results show that the conversion from the raw materials to the fresh melt proceeds in two kinetic stages. During the first stage (3–5 min), fast conversion of nearly 95% by mass occurs and the conversion coefficient increases in the order G < C ≈ A < B. The second stage is controlled by the slow dissolution of intermediate cr…
Luminescence of polymorphous SiO2
2016
Abstract The luminescence of self-trapped exciton (STE) was found and systematically studied in tetrahedron structured silica crystals (α-quartz, coesite, cristobalite) and glass. In octahedron structured stishovite only host material defect luminescence was observed. It strongly resembles luminescence of oxygen deficient silica glass and γ or neutron irradiated α-quartz. The energetic yield of STE luminescence for α-quartz and coesite is about 20% of absorbed energy and about 5(7)% for cristobalite. Two types of STE were found in α-quartz. Two overlapping bands of STEs are located at 2.5–2.7 eV. The model of STE is proposed as Si–O bond rupture, relaxation of created non-bridging oxygen (N…
Total colonic aganglionosis and cleft palate in a newborn with Janus-cysteine 618 mutation of RET proto-oncogene: a case report.
2020
Abstract Background Hirschsprung disease, the most important congenital colonic dysmotility in children results from neural crest migration, differentiation, proliferation, or apoptosis defects where the rearranged during transfection (RET)-Protooncogene pathway has a central role. Although palatal and retinal anomalies in the context of chromosomopathies and some mono−/oligogenic syndromes are reported associated with Hirschsprung disease the role of inactivating RET mutations in these cases is not clarified. Case presentation We report on a dysmorphic newborn with cleft palate and palatal synechia, who showed intestinal obstruction after 24 h of life. Transient ileostomy and surgical biop…
A tribute to Massimo Lanza de Cristoforis
2020
It is with great pleasure that we dedicate the special issue Functional Analytic Methods in Partial Differential Equations of Complex Variables and Elliptic Equations to the 60th birthday of Massim...
Musica e sociabilità nelle lettere di Antonio di Gennaro a Giovanni Cristofano Amaduzzi
2016
The Neapolitan man of letters Antonio di Gennaro Duke of Belforte (1717-1791) had a lenghty exchange of letters with Giovanni Cristofano Amaduzzi (1740-1792) starting from 1778; the contact between the two, who never met in person, was facilitated by Aurelio de’ Giorgi Bertola (1753-1798). The paper provides a short profile of Belforte, and describes his constant interest in music as well as his occasional activity as a librettist. Belforte's letters to Amaduzzi, still unpublished, are examined in order to collect information on the performances – in the court, theater or academy – he attended. The selected data not only offer valuable details and judgments about composers and compositions, b…
Vivere è amare. La dignità dell'uomo nella prospettiva cristologica di Augustin Guillerand
2010
Effect of Alkali Ions on the Amorphous to Crystalline Phase Transition of Silica
2001
Abstract The effect of the addition of alkali ions to commercial amorphous silica, generally used as support for heterogeneous catalysts, has been investigated from the point of view of morphological and structural changes. Samples of alkali-doped silica were prepared by impregnation and subsequent calcination at various temperatures. The structural effect of Li, Na, K, and Cs was determined by use of techniques such as wide-angle (WAXS) and small-angle X-ray scattering (SAXS). The WAXS diffractograms, analyzed with the Rietveld method using the GSAS program, allowed qualitative and quantitative identification of the fraction of the different silica polymorphs like quartz, tridymite, and cr…
Chiesa e potere nella "Controversia liparitana"
2019
Il cristianesimo per Sciascia costituì un modello alternativo del potere. Sulla scorta di Pascal e dei vangeli di Luca, di Matteo e di Giovanni si mostra come lo scrittore della Recitazione della controversia liparitana, sulle tracce di un fatto storico riflette sulla pratica distorta del potere contrapponendovi il governare come servizio proposto da Gesù ai suoi discepoli, In tale discorso si inserisce naturalmente anche il tema della Sicilia ovvero della lotta contro il privilegio condotta, nel Settecento, da un gruppo di uomini nuovi la cui generosa sfida rimasta incompiuta, il cui gesto ribelle, torna alla memoria dello scrittore di fronte alle manifestazioni sempre più intricate del po…
Creazione e decreazione. La dialettica corporale di trascendenza ed immanenza in Simone Weil
2005
Weil's reflection on the theme body and transcendence involves, on one hand the awareness of the meaning of suffering, and on the other a rethiking of God's creative act. Ii is only the body, and the body bound to souffering, place of abandonment and maximum distance from God, the place in which the Father's love in creation reveals itself to man. It is only a particular way to understand the body devoured by pain, which allows man to establish contact with Transcendence and to experience the peculiar movement of the Creator's lovefor the creature: creation as de-creation.
Gozos al invicto martir San Christoval
1750
El full orlat Grav. xil. enmarcat del sant, flanquejat per gerros amb flors Text del goig a tres col. separades per filets