2,060 research outputs found
Corrigendum: Platinated Nucleotides are Substrates for the Human Mitochondrial Deoxynucleotide Carrier (DNC) and DNA Polymerase γ: Relevance for the Development of New Platinum-Based Drugs (ChemistrySelect, (2016), 1, (4633-4637), 10.1002/slct.201600961)
No full textIn agreement with all authors of this paper the order of the authors and the contribution “Paola Lunetti[+], Alessandro Romano[+], Chiara Carrisi, Daniela Antonucci, Tiziano Verri, Giuseppe E. De Benedetto, Vincenza Dolce, Francesco P. Fanizzi, Michele Benedetti,* and Loredana Capobianco.* [+] These authors contributed equally to this paper. * Corresponding authors: Michele Benedetti and Loredana Capobianco, Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce.” is corrected to read the original order of the first submitted version of the paper: “Chiara Carrisi[+], Alessandro Romano[+], Paola Lunetti, Daniela Antonucci, Tiziano Verri, Giuseppe E. De Benedetto, Vincenza Dolce, Francesco P. Fanizzi, Michele Benedetti,* and Loredana Capobianco.* [+] These authors contributed equally to this paper. * Corresponding authors: Loredana Capobianco and Michele Benedetti, Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce.” For completeness the following individual contributions of the authors were added in the Supporting Information: “Author contributions: L.C., M.B., C.C., A.R. designed research; C.C., A.R., P.L. and D.A. performed research; L.C., M.B., C.C., A.R., V.D. and P.L. analysed data; F.P.F., A.R., L.C. and M.B. wrote the paper; L.C., M.B., T.V., G.D.B. and F.P.F. active discussion paper revision.”
Influence of grass roots on shear strength of pyroclastic soils
No full textThis paper investigates the effects of indigenous vegetation on the shear strength of loose pyroclastic soils of the Campania region (southern Italy); these soils are frequently affected by shallow landslides 1–2 m deep that experience static liquefaction during the post-failure stage. Perennial graminae grasses were seeded in a one-dimensional column 2 m high and filled by pyroclastic soils, allowing the root to grow under atmospheric conditions. A noninvasive sampling procedure was adopted to take the vegetated soil samples, in which the roots were in their natural geometrical distribution. For each rooted sample, the root biomass, RM, was measured and the root volume density, RVD, was calculated. Isotropic consolidated triaxial tests in both drained and undrained conditions were performed on the rooted specimens, as well as on bare specimens as a control. The obtained results showed that the roots generally provided an increment to the soil strength. In drained conditions a reduction in the volumetric deformation was observed, which, under undrained conditions, was reflected in a general reduction of the excess pore-water pressures with a possible inhibition of the static liquefaction occurrence. This study highlights the potential role of grass roots as bio-engineering practice for stabilizing shallow covers of pyroclastic soils
End-of-life management of oil and gas offshore platforms: challenges and opportunities for sustainable decommissioning
No full textPurpose of the paper: The decommissioning of offshore platforms represents a significant and controversial challenge that has gained attention over the years due to its environmental, social, and economic impact. This work aims to investigate stakeholders’ perceptions regarding the future of offshore platforms and to explore dimensions of sustainability related to decommissioning.
Methodology: An analysis was carried out based on two rounds of empirical inquiry, a range of primary data collected through multiple-choice questionnaires and in-depth interviews.
Findings: The analysis shows that stakeholders perceive reuse as an opportunity to minimise the impacts according to an environmental, economic, and social perspective. While the multipurpose platform represents an opportunity for the future, it also presents challenges.
Research limitations: The study relies only on qualitative analysis techniques and on a limited sample and geographical area.
Practical implications: The analysis offers several insights into the decommissioning scenario according to a sustainable and circularity perspective and contributes to the decommissioning debate by providing information about decommissioning programs, stakeholders’ impacts, and future planning considerations.
Originality of the paper: The study contributes knowledge to the field and useful managerial insights, highlighting stakeholders’ perception in the Italian context and exploring dimensions of sustainability and main SDGs related to the issu
PHOTOACID SWITCHING IN FUSED-RING N-RICH AROMATICS
No full text[1,2,4]triazolo[3,2-c][1,2,4]triazole is a simple fused-ring N-rich aromatic
system, with remarkable properties with respect to acid-base behavior and
tautomerism1-3. Neutral heterobicycles (HL) exhibit amphoteric behaviour
(they can deliver the N−H proton forming the conjugated base L-
and can
accept up to two protons, forming the species H2L+
and H3L++) and show an
unprecedented tautomeric switching upon protonation, as revealed by single
crystal X-ray analysis and confirmed by theoretical calculations4
. By
varying the groups attached at the heterocycle, a remarkable shift of pKai
values, up to 5-6 units, is observed. The studies of the acid-base properties
in the excited state show that the N-H group in neutral triazolo-triazoles has
an intrinsic photobasic behavior. Singly protonated forms of the system
have instead a photoacid behavior. If a photoacid phenol group is attached at
position 7 of the intrinsically photobasic triazolo-triazole unit, the
interaction between the two complementary photoactive functions in the
same molecule is additive, in such a way that in the ground state N-H is
more acid than O-H while the opposite holds in the excited state. So,
between ground and excited state, the acid proton is delivered by different
sites of the same molecule (photoacid switching).
[1] C-H Zhou, Y. Wang,Current Medicinal Chemistry,19 (2012) N.2, 239-
280.
[2] Y. Murti at all, American Journal of Chemistry1 (2011) 42-46.
[3] R. Centore, S. Fusco, A. Capobianco,V. Piccialli, S. Zaccaria, and A.
PelusoEuropean Journal of Organic Chemistry18 (2013) 3721-3728.
[4] R. Centore, C. Manfredi, S. Fusco, C. Maglione, A. Carella, A.
Capobianco, A. Peluso, D. Colonna, A. Di Carlo,Journal of Molecular
Structure 1093 (2015) 119–124
NOTE SULLA DEFINIZIONE DI CRITERI E SOGLIE PER LA VALUTAZIONE DELLA RICICLABILITÀ DEI MATERIALI
No full text
La scrittura autobiografica nella terra di Gomorra
No full textIl saggio descrive un’esperienza di scrittura autobiografica realizzata all’interno di una scuola secondaria di primo grado, una scuola napoletana, all’interno di un quartiere popolare, espressione viva di quella terra di Gomorra descritta da Roberto Saviano.
Partendo dalla conversazione autobiografica, si è poi arrivati alla scrittura autobiografica, che ha offerto a ciascun alunno un’occasione di autodeterminazione, mettendo in moto non solo un processo di crescita e di cambiamento evolutivo, ma soprattutto di responsabilizzazione personale rispetto al proprio percorso educativo e formativo.
The essay describes an autobiographical writing experience carried out within a secondary school set in a working-class neighbourhood in Naples which lively recalls the land and the people reported by Roberto Saviano in Gomorrah. Starting from the autobiographical conversation, the author has later on reached the autobiographical writing activating not only a growth and change process, but a greater one which has made more responsible the subjects involved with respect to their own educational and training path
- …
