87,065 research outputs found
sfgallen/RICoTTa: RICoTTa
No full textRICoTTa - River Inversion Model using Cosmogenic Radionuclide, Marine Terrace, and Low-Temperature Thermochronological Data
Sean F. Gallen and Christoph Glotzbach
RICoTTa is a data-driven river profile inversion code originally developed by Glotzbach (2015). The version provided here is a modified version of the original code presented in Gallen et al. (2023). See the read me page on the associated GitHub repository for important information on the code as well as the two papers cited above.
This is a citable repository as Gallen and Glotzbach, 2023, RICoTTa v1.0, http://doi.org/10.5281/zenodo.7671209.
Note that the codes presented in this repository might be updated from time to time on the associated GitHub page linked here: https://github.com/sfgallen/RICoTTa
Code description and disclaimer:
This series of codes takes a suite of data sets (i.e., longitudinal river profiles, cosmogenic radionuclide concentrations, marine terrace rock uplift calculations, and low-temperature thermochronometric ages) and uses a Bayesian inversion to constrain rock uplift histories and parameters in the detachment-limited stream power model.
These codes are modified versions of the algorithm described in Glotzbach (2015). The version of the codes in this repository was applied in Gallen et al. (2023). Please see those references for details on the model.
The three example scripts provided will run an abbreviated simulation using the datasets in Gallen et al. (2023). Note that the data provided with the examples was prepared using SRTM digital elevation models and TopoToolbox v2 (Schwanghart and Scherler, 2014) and ChiProfiler (Gallen and Wegmann, 2017).
Disclaimer:
We strongly recommend that only expert Matlab users deeply familiar with the forward and inverse models used in this software modify the codes provided. We make this disclaimer because it is fairly easy to make mistakes that will inhibit the usefulness of the model results.
Furthermore, before attempting to apply these codes to another study area, it is important to make sure that a number of assumptions in the natural setting are met. These assumptions include, but are not limited to:
The catchment is an erosional, fluvially-dominated, bedrock system (i.e., no deposition, no evidence of past glaciation, and no alluvial rivers).
The catchment network has no obvious evidence of recent reorganization or unstable drainage divides (e.g., no evidence of recent river capture or strongly asymmetric drainage divides).
Erodibility is relatively uniform throughout the catchment (i.e., roughly uniform rock type, no strong precipitation gradients).
Rock uplift appears spatially uniform (i.e., no evidence of local or regional tilting and no active faults cutting the catchment).
The uplift and exhumation history can reasonably be approximated as one-dimentionsal in the vertical direction (i.e., no significantly horizontal tectonic velocities).
The catchments are not too large (no firm size threshold, but the larger the basin, the more likely the assumptions will be violated).
The outlet location is fixed with time.
Note that this is not a comprehensive list, but these are some of the assumptions that must be met for this code to be meaningfully applied to a given catchment.
For an example of working through a list of assumptions in conducting similar catchment-scale inversions, please see Gallen and Fernández-Blanco (2021).
If you use these codes of modified versions of these codes for scientific research, cite Glotzbach (2015) and Gallen et al. (2023). The code is also citable as a Zenodo repository as Gallen and Glotzbach, 2023, RICoTTA v1.0, http://doi.org/10.5281/zenodo.7671209.
References:
Gallen, S.F., Seymour, N.M., Glotzbach, C., Stockli, D.F., O'Sullivan, P., 2023, Calabrian forearc uplift paced by slab-mantle interactions during subduction retreat: Nature Geoscience. https://doi.org/10.1038/s41561-023-01185-4 [shareable link]
Gallen, S.F. and Fernández-Blanco, D., 2021, A New Data-driven Bayesian Inversion of Fluvial Topography Clarifies the Tectonic History of the Corinth Rift and Reveals a Channel Steepness Threshold: JGR-Earth Surface, v. 126, p. e2020JF005651. https://doi.org/10.1029/2020JF005651.
Gallen, S.F. and Wegmann, K.W., 2017, River profile response to fault growth and linkage: An example from the Hellenic forearc, south-central Crete, Greece: Earth Surface Dynamics, v. 5, p. 161-186. https://doi.org/10.5194/esurf-5-161-2017/
Schwanghart, W. and Scherler, D., 2014. TopoToolbox 2–MATLAB-based software for topographic analysis and modeling in Earth surface sciences. Earth Surface Dynamics, 2(1), pp.1-7. https://doi.org/10.5194/esurf-2-1-2014
Glotzbach, C., 2015. Deriving rock uplift histories from data-driven inversion of river profiles: Geology, 43(6), pp.467-470. https://doi.org/10.1130/G36702.
Abnormal FLC values: biological sample and/or method dependent?
No full textDescription of the first experience, in the laboratory unit directed by Doris Ricotta, on the patient management with the new N-Latex assay
Vista dal Nord Educazione antimafia e immaginario mafioso in Piemonte e Lombardia
No full text"Vista dal Nord"è il frutto di un lavoro di ricerca sull'immaginario dei giovani studenti lombardi e piemontesi sui fenomeni mafiosi e sull'antimafia, condotto dai Ludovica Ioppolo, Francesca della Ratta-Rinaldi e Giuseppe Ricotta, che già avevano curato degli studi su questo tema tra gli studenti delle scuole superiori in Toscana (2010), nel Lazio (2011), in Liguria e in provincia di Trento (2012). Il lavoro, coordinato da Libera Formazione e dai ricercatori, in collaborazione con i coordinamenti territoriali di Lombardia e Piemonte, è iniziato nel 2013 e nel 2014, con la somministrazione ad un campione di studenti delle scuole superiori di un questionario on-line. Vista dal Nord riporta gli esiti di quanto emerso da questo lavoro, analizzando la grande ricchezza di dati quantitativi e qualitativi emersi, approfondendo in particolare gli effetti delle azioni di educazione antimafia e alla cittadinanza portate avanti da docenti e associazioni nelle scuole italiane."View from the North" is the result of a research work on the imagery of the young students in Lombardy and Piedmont on the mafia and 'antimafia, led by Ludovica Ioppolo, Francesca della Ratta-Rinaldi and Giuseppe Ricotta, who had already taken care of studies on this issue among high school students in Tuscany (2010), in Lazio (2011), in Liguria and in the province of Trento (2012). The work, coordinated by Libera and by the three researchers, in collaboration with the regional coordination of Libera Lombardy and Libera Piedmont, began in 2013 and in 2014, by administering to a sample of high school students of an online questionnaire. View from the North shows the results of the findings of this work, analyzing the great wealth of quantitative and qualitative findings, especially focusing on the effects of anti-Mafia education and citizenship actions carried out by associations and teachers in Italian schools
Algoritmi di raccomandazione e reti di influenza implicite
No full textIl consumatore postmoderno è distante da forme di aggregazione sociale spesso come risultato dell’utilizzo delle differenti piattaforme di comunicazione e transazione. Ma grazie agli algoritmi che alimentano i sistemi di raccomandazione, si vengono a creare reti di influenza implicite, all’interno delle quali, gli utenti che assumono legami poco solidi con i vari vicinati rappresentano un opportunità per la diffusione delle
azioni di marketing
La propensione all’investimento in information & communication technology delle piccole e medie imprese
No full textAre you telling me the truth? Authenticity of responses in virtual worlds research
No full textBasing on social response theory of consumer behavior, which predicts that the use of social cues in human-computer interaction elicits more sincere responses (Moon 2000; Moon 2003), and recognizing that the social dimension is dominant in virtual worlds’ interactions, we hypothesize that virtual worlds are externally valid contexts for marketing research. We test our hypothesis comparing answers provided in a virtual world context to answers provided in a real context on two heuristics: evaluation and choice. Evidence obtained from two studies supports the external validity of virtual world setting for marketing research both
when participants are asked to perform an evaluation and when participants are asked to make a choice
Strategie di marketing del consumatore. Proposizioni di ricerca sul fabbisogno di consumer protection
No full textGaetano Golinelli tra l'analisi settoriale e la dicotomia struttura e governo dell'impresa
No full textQueste poche pagine intendono presentare alcune riflessioni sui contributi che Gaetano Maria Golinelli ha realizzato nella sua lunga carriera accademica su due aree di interesse: i settori e la loro dinamica come elemento introduttivo allo studio dei processi di governo dell’impresa. Il nostro lavoro intende dare una raffigurazione in pillole delle sue posizioni per poi introdurre i contributi che molti colleghi hanno inviato e che in una misura significativa derivano dagli studi realizzati da Golinelli
L'analisi settoriale attraverso la dicotomia struttura e governo dell'impresa
No full textLa sezione, inserita all'interno del volume Contributi in Onore di Gaetano Maria Golinelli, propone una lettura coordinata di 11 contributi di autori, in larga misura italiani, sulle tematiche dell'analisi settoriale e dei processi di governo delle imprese
Influence of olive leaves feeding on chemical-nutritional quality of goat ricotta cheese
No full textThe industrial sector dedicated to the production of olive oil produces every year significant amounts of by-products, a part of which is represented by leaves deriving from pruning. These by-products represent an economic and sustainable source of bioactive compounds credited of positive benefits for human health. The aim of this study was to investigate the effects of dietary olive oil (OL) supplementation of Saanen goats on chemical-nutritional composition and volatile fraction of ricotta cheese. Twenty six Saanen goats were randomly divided into two equal groups: one fed with a conventional diet (CG) and one fed with a diet enriched with olive leaves (EG). After thirty days of trial, the milk collected from the two groups was used to made ricotta cheese. Dietary OL supplementation improved the oxidative stability of ricotta cheese during storage time and provided an increase of unsaturated fatty acid as vaccenic acid, CLA, and linolenic acid, and a decrease of ω-6/ω-3 ratio. EG ricotta cheeses were also characterized by a higher content of polyphenol compounds and higher antioxidant capacity compared to CG ricotta cheeses. Finally, also the volatile profile resulted affected by the diet with a significant decrease of ketones. The obtained results suggested a positive role of OL in the production of functional foods, credited of high health value
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