196,143 research outputs found
ELECTRONIC EFFECTS IN ENERGY/ELECTRON TRANSFER PROCESSES OF INORGANIC DYADS
No full textEnergy and electron transfer are the subject of continuing attention, as key processes in molecular devices for light energy conversion and various electronic/photonic applications. The simplest systems for the study of such processes are D-B-A “dyads”, where donor (D) and acceptor (A) molecular components are connected by an appropriate bridge (B). A large number of inorganic dyads have been studied, where A and D are transition metal complexes, often of the polypyridine family [1,2]. Two features of these inorganic systems make their energy/electron transfer behavior more complex than that of common organic dyads: (i) the complex nature A and D, each comprising metal-localized and ligand-localized electronic subsystems, (ii) the presence of a bridging ligand, that may complicate the picture of B, D, and A as electronically localized subsystems. Because of these complex localization aspects, electronic factors play often very important roles in the behavior of inorganic dyads. Some examples from recent work in the authors’ laboratory will be presented, including (i) energy/electron transfer in dyads with aromatic polyquinoxaline bridges, (ii) energy transfer in isomeric cyclometalated dyads and (ii) long-range electron transfer across oligophenylene bridges.
[1] F. Scandola, C. Chiorboli, M. T. Indelli, M. A. Rampi, in: Electron Transfer in Chemistry, V. Balzani, Ed.; Wiley-VCH, Weinheim, 2001. Volume III, Chapter 2.3, p. 337-408.
[2] F. Scandola, C. Chiorboli, M. T. Indelli, M. A. Rampi, “Covalently Linked Systems Containing Metal Complexes” in: Electron Transfer in Chemistry, V. Balzani, Ed.; Wiley-VCH, Weinheim, 2001. Volume III, Chapter 2.3, p. 337-408. C. Chiorboli, M. T. Indelli, F. Scandola Top. Curr. Chem. 2005, 257, 63-10
Domenico Comparetti (1835-1927)
No full textProfilo degli studi papirologici di Domenico Comparetti, autore di edizioni e di contributi di notevole valore scientifico sia su papiri grecoegizi sia su papiri ercolanesi
(con F. Longo Auricchio), Il Carteggio Bignone-Vogliano conservato nel Fondo Vogliano di Napoli
No full textDiciannove lettere e cartoline postali scritte da Ettore Bignone ad Achille Vogliano e tre lettere scritte da Vogliano a Bignone (1916-1929), che mostrano un rapposrto amichevole tra i due studiosi, anche se non privo di critiche reciproche, e contribuiscono a ricostruire l'atmosfera degli studi classici in quel periodo
PHerc. 1044 (Vita Philonidis): edizione, traduzione e commento
No full textEdizione critica, con traduzione e commento e una ricca introduzione, di un'opera biografica conservata in PHerc. 104
Quality of life of homebound patients with advanced cancer: Assessments by patients, family members, and oncologists
No full textEvaluation of quality of life in patients with advanced cancer and identification of reliable raters in addition to patients are important aspects of a palliative care program. In a study of these aspects, 49 homebound patients with advanced cancer completed the Quality of Life Index (QLI) and the Functional Living Index for Cancer (FLIC) two to three weeks after admission to the home care University of Ferrara, School of Medicine, and Senior Assistant, Consultation-Liaison Psychiatry Service, Department of Psychiatry, Arcispedale St. Anna, Ferrara, Italy program (Time 1) and four weeks later (Time 2). Their primary caregivers (relatives) and oncologists completed the QLI and the Index of Independence in Activities of Daily Living (ADL-I); the oncologists also completed the Karnofsky Performance Status scale (KPS). No difference was found between the QLI ratings of patients and relatives, whereas the oncologists rated the patients' quality of life as being better than the patients did. Significant associations, particularly at Time 2, were found among the QLI scores of patients, relatives, and oncologists. Regarding the QLI subscales, the relatives' scores were less concordant with those of patients on Health and Support, and the oncologists' scores were less concordant with those of patients on Support and Mood. Relatives' and oncologists' ratings on the ADL-I were significantly concordant. The FLIC scores were associated with the QLI scores regardless of which group supplied the ratings, especially at Time 2. The relatives' QLI scores were also associated with the oncologists' KPS scores at Time 1, whereas all QLI scores, regardless of the source of ratings, were associated with KPS scores at Time 2. The results indicated that in the context of a home care program, the relatives most involved in the patient's care and, to a lesser degree, oncologists may be helpful in assessing some aspects of the patient's cancer experience
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