409 research outputs found
Author Correction: Gluten consumption and inflammation affect the development of celiac disease in at-risk children
No full textThe original version of this Article contained an error in the spelling of the authors Renata Auricchio, Ilaria Calabrese, Martina Galatola, Donatella Cielo, Fortunata Carbone, Marianna Mancuso, Giuseppe Matarese, Riccardo Troncone, Salvatore Auricchio & Luigi Greco which were incorrectly given as Auricchio Renata, Calabrese Ilaria, Galatola Martina, Cielo Donatella, Carbone Fortunata, Mancuso Marianna, Matarese Giuseppe, Troncone Riccardo, Auricchio Salvatore & Greco Luigi. The original article has been corrected
Valorization of Mediterranean Species of Thyme for the Formulation of Bio-Herbicides
Get PDFThis study focused on the evaluation of the phytotoxic activity of four essential oils (EOs)
from the Mediterranean species of Thymus sp. pl., namely Thymus algeriensis Boiss. et Reut., T. ciliatus
Desf. subspecies coloratus (Boiss. et Reut.) Batt., T. vulgaris L. ecotype Fasano and T. vulgaris cultivar
L. Varico 3, to identify new biomolecules with herbicide potential. The chemical characterization of
EOs was performed by GC-MS. The evaluation of the phytotoxicity of the EOs was conducted under
in vitro conditions, and the inhibition of germination and seedling growth of Lolium perenne L. and
Amaranthus retroflexus L. were assessed. Five concentrations (100, 250, 500, 750 and 1000 μL/100 mL)
were considered. Phytochemical analysis revealed a great diversity of compounds. T. algeriensis and
T. ciliatus EOs were characterized by the absence of carvacrol and a low content of thymol in T. ciliatus.
On the contrary, T. vulgaris ecotype Fasano and T. vulgaris cultivar Varico 3 were characterized by an
important content of p-cymene, thymol and carvacrol. All the EOs expressed a potent phytotoxic
activity against the tested species. The total inhibition of seed germination and seedling growth were
recorded for the highest concentrations of all the EOs. T. vulgaris ecotype Fasano expressed the most
effective activity
Capillary thinning analysis
No full textThe data analysis package is composed of three distinct scripts designed to be run in Matlab with png image files. ContactAngle.m measures the contact angle of a liquid bridge and the spreading distance on the substrate for a series of images during liquid bridge thinning. Startpoint_Symmetry finds the minimum radius for a series of liquid bridge thinning images, identifies the start and end point of thinning, and gives information about the overall symmetry of the trials. EC_binning identifies the fitting region, fits and reports relaxation time for elastocapillary thinning fluids. For all three scripts, an example dataset is provided to demonstrate script functionality.This collection of scripts is a package for analyzing extensional rheology data of liquid bridges. While this was created with Dripping-onto-Substrate datasets, this data analysis package may be useful for other liquid bridge thinning applications such as CaBER. Any pre-processing of images, such as binarizing, converting to png or cropping, can be completed with ImageJ.This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. CON-75851, project 00074041. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.Lauser, Kathleen T; Calabrese, Michelle A. (2022). Capillary thinning analysis. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/gkz4-8z17
Stakeholders’ perception of Xylella fastidiosa (Xf) disease risk assessment: First results from Puglia (IT), Chania (GR), Valencia and Andalucia (ES)
Get PDFXylella fastidiosa (Xf) is an aerobic, Gram-negative bacterium of the monotypic genus Xylella. It is transmitted exclusively by xylem fluid feeding sap insects. Xf is one of the most dangerous plant bacteria worldwide, causing a variety of diseases, with huge impact for agriculture, and affecting cultivated plants of high economic value (e.g., olive trees, stone fruits—plums, almonds, cherries) or wide-spread ornamental plants (e.g., myrtle-leaf milkwort, oleander). In the frame of H2020 Project XF-ACTORS, analysis of the environmental, socio-economic and governance impact and vulnerability to Xf have been carried out in selected case study areas. To reach this goal, an extensive survey was conducted with the support of a comprehensive questionnaire in Puglia (Italy), Crete (Greece), Valencia and Andalusia (Spain). Questionnaires were completed through face-to-face interviews with local farmers, decision makers, extension experts and practitioners. The survey aimed to: 1) collect the point of view and perception of people about Xf disease and the containment plans; 2) identify possible gaps in communication, understand possible weak points in the communication strategy that could hamper the application and the effectiveness of containment measures; 3) understand the network of relationships existing among stakeholders in territorial contexts; and 4) collect suggestions from local people with a view to improving the management of information related to the disease. Questions were grouped under different main criteria: Knowledge, Perception, Practices, Involvement, Effectiveness, Responsibility. A scoring procedure assigned to each question a value to assess the corresponding indexes: DKI-Disease Knowledge Index, DPI-Disease Perception Index, FPI-Farm Practices Index, INV-Involvement Index, EFF-Effectiveness Index, RES-Responsibility Index. The overall values of RISK (DKI/DPI/FPI) and GOVERNANCE (INV/EFF/RES) were then obtained. To investigate linkages (correlation and causation) between Governance and Risk (perception and management) domains as well as among their indices, Structural Equation Modelling (SEM) technique was adopted. The proposed methodology proves to be useful to describe attitudes of respondents when facing the epidemic, as well as how they appreciate and tackle disease management. The work allows practical suggestions to be made to improve the knowledge-perception relationship that directly influences willingness to adopt preventive/control measures against the pathogen, and consequently will increase the efficiency of Xf disease management. The result of the whole analyses confirmed that the engagement of stakeholders, the involvement of expert groups (enlarged to experts in economy and social science) and an appropriate communication strategy are essential for a successful implementation of phytosanitary measures
Corrigendum to “Esophageal motility disorders among elderly patients: An international multicenter study” [Digestive and Liver Disease 57 (2025) 1615-1621]
No full textThe authors regret that the name of author Francesco Calabrese was spelt incorrectly. The correct spelling appears above and the online article has been amended. The authors would like to apologise for any inconvenience caused
The bridge: suggestions about the meaning of a pictorial motif
No full textDeveloping research begun at the Warburg Institute in 1983, this paper reflects on the construction of meaning in a work of art, through the analysis of the bridge’s function in painting. It tries to reply to some objections the author received there from Gombrich, about the chance of finding a stable content in the configuration of the bridge. Hence, the study reconsiders the concept of ‘motif’ applied to this structure. In a semiotic perspective a motif is partially independent as regards to a single textual organization, because it has a mobile and migrant feature. However, it is also partially flexible as it depends upon the same organization. The inquiry shows that bridge’s internal structure corresponds to the category of a ‘junction’, with two opposite items, ‘conjunction’ and ‘disjunction’. The development of this theoretical object can be carried out also by figures that are not ‘bridges’, in the natural sense of the word. Furthermore, its meaning does not depend upon the number of examples we can find but only upon their relevance for constructing a ‘grammar of cases’. Differently from the traditional iconographical approach, but also from panofskian iconology, the analysis moves not only towards the simple or complex content of a figure but also towards its description
Correlations between Organic and Conventional Management, on-Field Biodiversity and Landscape Diversity, in Olive Groves in Apulia (Italy)
No full textVariabilità del contenuto di arbutina in Uva ursina (Arctostaphylos uva-ursi (L.) Spreng.) in relazione al biotipo e all'ambiente di coltivazione.
No full text
Relative entanglement entropies in 1 + 1-dimensional conformal field theories
Get PDFWe study the relative entanglement entropies of one interval between excited states of a 1+1 dimensional conformal field theory (CFT). To compute the relative entropy S(ρ1‖ρ0) between two given reduced density matrices ρ1 and ρ0 of a quantum field theory, we employ the replica trick which relies on the path integral representation of Tr(ρ1ρn−10) and define a set of R\'enyi relative entropies Sn(ρ1‖ρ0). We compute these quantities for integer values of the parameter n and derive via the replica limit, the relative entropy between excited states generated by primary fields of a free massless bosonic field. In particular, we provide the relative entanglement entropy of the state described by the primary operator i∂φ, both with respect to the ground state and to the state generated by chiral vertex operators. These predictions are tested against exact numerical calculations in the XX spin-chain finding perfect agreement. © 2017, The Author(s)
- …
