8,820 research outputs found
Towards CFD guidelines for planing hull simulations based on the Naples Systematic Series
No full textDue to their higher motion amplitudes and instabilities, numerical simulations of planing hulls using Computational Fluid Dynamics (CFD) codes are more difficult than that of displacement ships. Indeed, for an accurate evaluation of the hydrodynamic performances of planing craft, the high-fidelity estimation of the pressure field around the hull is crucial. For this reason, validations and comparisons with experimental data are still important to identify the guidelines for both simulation settings and mesh generation. In this paper, two commercial packages will be compared focusing on a resistance case for the parent hull model (C1 hull) from the Naples Systematic Series (NSS) at four Froude numbers (Fr).
The NSS is a new systematic series of hard chine hulls intensively tested in planing and semiplaning speed range, De Luca et al. [1]. It has been chosen for the hull form: it is characterized by a warped bottom and a sectional area curve significantly different from the prismatic hulls. These differences amplify the difficulties in finding out the exact pressure distribution on the bottom and, consequently, make the evaluation more stringent.
The Unsteady Reynolds-Averaged Navier-Stokes flow solvers results are validated using these benchmark experimental data. Also, grid independence, iteration, and time-step convergence analysis for response variables (resistance coefficients, wetted surfaces, and dynamic trim angles) follow the recommendations published in the verification and validation (V&V) study from De Luca et al. [2]. Hence, the two software are more compared on different features such as the mesh deformation, the overset method, and the correction of numerical ventilation classically observed below the hull. The results show that both software can provide consistent values and that new guidelines are now identified to improve the reliability of the simulations
Heart rate variability and target organ damage in hypertensive patients
No full textBackground:
We evaluated the association between linear standard Heart Rate Variability (HRV) measures and vascular, renal and cardiac target organ damage (TOD).
Methods:
A retrospective analysis was performed including 200 patients registered in the Regione Campania network (aged 62.4 ± 12, male 64%). HRV analysis was performed by 24-h holter ECG. Renal damage was assessed by estimated glomerular filtration rate (eGFR), vascular damage by carotid intima-media thickness (IMT), and cardiac damage by left ventricular mass index.
Results:
Significantly lower values of the ratio of low to high frequency power (LF/HF) were found in the patients with moderate or severe eGFR (p-value < 0.001). Similarly, depressed values of indexes of the overall autonomic modulation on heart were found in patients with plaque compared to those with a normal IMT (p-value <0.05). These associations remained significant after adjustment for other factors known to contribute to the development of target organ damage, such as age. Moreover, depressed LF/HF was found also in patients with left ventricular hypertrophy but this association was not significant after adjustment for other factors.
Conclusions:
Depressed HRV appeared to be associated with vascular and renal TOD, suggesting the involvement of autonomic imbalance in the TOD. However, as the mechanisms by which abnormal autonomic balance may lead to TOD, and, particularly, to renal organ damage are not clearly known, further prospective studies with longitudinal design are needed to determine the association between HRV and the development of TOD
Problematiche dell’indotto Fiat di Cassino: proposte per la valorizzazione delle PMI e il rilancio del territorio. Un modello di intervento per rilanciare il sistema
No full textGATTI M., GATTI C., PROIETTI L., SIMONE C., Problematiche dell’indotto Fiat di Cassino: proposte per la valorizzazione delle PMI e il rilancio del territorio. Un modello di intervento per rilanciare il sistema produttivo di Cassino, Bic Notes – Quaderni di Bic Lazio, Numero Speciale, 2006, 9-152
Volume senza attribuzioni ai singoli AutoriM. CATS, CATS C., L. Proietti, SIMONE C. Issues industries Fiat Cassino: proposals for the development of SMEs and the revitalization of the area. A model of intervention to revive the productive system of Cassino, Bic Notes - Papers Bic Lazio, Special Issue, 2006 9-152 Volume without attribution to individual author
Supplementary Material 1 - Supplemental material for Pediatric Hidradenitis Suppurativa: A Cross-Sectional Study on Clinical Features and Treatment Approaches
No full textSupplemental material, Supplementary Material 1, for Pediatric Hidradenitis Suppurativa: A Cross-Sectional Study on Clinical Features and Treatment Approaches by Simone Garcovich, Luca Fania, Dante Caposiena, Giulia Giovanardi, Andrea Chiricozzi, Clara De Simone, Chiara Tartaglia, Davide Ciccone, Luca Bianchi, Damiano Abeni and Ketty Peris in Journal of Cutaneous Medicine and Surgery</p
La media-conciliazione
No full textDopo il saggio di apertura sulle disfunzioni della giustizia italiana (contributo di Maurizio De Paolis, Direttore del Massimario del Consiglio di Stato), vengono esaminati i sistemi di conciliazione già esistenti nell'ordinamento italiano (contributo di Simone Budelli, Presidente Vicario di AGE.PRO.EU, organismo di mediazione e formazione, accreditato dal Ministero della Giustizia) e il nuovo istituto della media-conciliazione introdotto nel 2010 (contributo di Francesco Pavone - Presidente vicario Adoc Umbria), anche sotto il profilo fiscale e tributario (contributo di Luca Palazzetti, dottore commercialista), nonché sotto il profilo delle tecniche di negoziazione e delle strategie di comunicazione da utilizzare nell’attività di mediazione (contributo di Valentina Vescovi, psicoterapeuta, docente di psicologia giuridica)
The Nelson-Atkins Museum of Art: Steven Holl Architects. The Tama Art University New Library: Toyo Ito. The New Museum of Contemporary Art: Sanaa. Didden Village: MVRDV. The High-Line: Diller+Scofidio. The Multifunctional Complex La Maladiere. Geninasca-Delefortrie. Facility-Kanagawa Institute of Technology: Junya Ishigami + Associates. The Livraria da Vila: Isay Weinfel. D&G Headquarter: Piuarch
No full textRGB Outdoor Light Festival
No full textRGB Outdoor Light Festival: il 27 e 28 marzo 2015 al Pigneto un progetto d’illuminazione artistica urbana che, attraverso una passeggiata, si propone di coinvolgere i quartieri del V Municipio.
Un percorso di quattro chilometri che ha come scopo portare il pubblico dall’isola pedonale del Pigneto fino al Parco Sangalli, invitandolo ad attraversare, grazie ad una costellazione di opere luminose in stretta relazione con i luoghi e le architetture e chi le abita, vie e vicoli che solitamente non hanno un flusso pedonale intenso.
Gli interventi installativi luminosi e video di alto valore artistico e di semplice fruizione collettiva mirano a coinvolgere le strade, i punti bui ed abbandonati, le contrapposizioni architettoniche.
A cura di Luci Ombre srl
Artisti partecipanti: Artisti§Innocenti, Gruppo Giacenza, Giulivo Piacentini, Dielab, Daniele Davino e Daniele Spanò, Studio Aira, Miriam Abutori, Pasquale Mari (Teatro Stabile di Torino), Magombra, Gina Balla, Margine Operativo e Manuel De Carli, Simone Palma, Marco Amedani, Laurent Fort, Matteo Boscarato, Mastrangelo&Papageorgiou, La mia paura è bianca, Q2Visual, Andrea Leghissa, Leonardo Zaccone, Accademia di Belle Arti di Roma, Bauder/Bevilacqua, Gabriela Prochakza, Luca Ercoli, Lupercales BNC, Simone Palma, Stalker, Open Lab Company e dagli studenti dei corsi “Istituzioni di Regia Digitale” e “Video Mapping – Elaborazione Immagine Digitale” della Facoltà di Lettere e Filosofia dell’Università La Sapienza Roma curati dal Prof. Luca Ruzza
Tell it to the hand: Attentional modulation in the identification of misoriented chiral objects
No full textResearch in the field of cognitive neuroscience and neuropsychology on spatial
cognition and mental imagery has increased considerably over the last few decades.
While at the beginning of the XX century studying imagery was considered an object of
derision – a ―sheer bunk‖ (Watson, 1928) – at the present, imagery researchers have
successfully developed models and improved behavioral and neurophysiological
measures (e.g., Kosslyn et al., 2006). Mental rotation constituted a major advance in
terms of behavioral measures sensitive to imaginative operations executed on visual
representations (i.e., Shepard & Cooper, 1982). The linearity of modulation between
response times and angular disparity of the images allowed a quantitative estimate of
imagery processes. The experiments described in the present thesis were motivated by
the intent to continue and extend the understanding of such fascinating mental
phenomena. The evolution of the present work took initial steps from the adoption of a
behavioral paradigm, the hand laterality judgment task, as privileged tool for studying
motor imagery in healthy individuals and brain-damaged patients. The similarity with
mental rotation tasks and the implicit nature of the task made it the best candidate to
test hypotheses regarding the mental simulation of body movements. In this task,
response times are linearly affected by the angular departures the hand pictures are
shown in, as for mental rotation, and their distributions are asymmetric between left and
right hands. Drawing from these task features a widely held view posits that laterality
judgment of rotated hand pictures requires participants to imagine hand-arm
movements, although they receive no instruction to do so (e.g., Parsons, 1987a;
Parsons, 1994). In Chapter 1, I provided a review of the relevant literature on visual and
motor imagery. Particular aspects of the mental rotation literature are also explored. In
Chapter 2, I examined the hand laterality task and the vast literature of studies that employed this task as means to test motor imagery processes. An alternative view to
the motor imagery account is also discussed (i.e., the disembodied account). In Chapter
3, I exploited the hand laterality task, and a visual laterality task (Tomasino et al., 2010)
to test motor and visual imagery abilities in a group of healthy aged individuals. In
Chapter 4, I described an alternative view that has been proposed by others to explain
the pattern of RTs in the hand laterality task: The multisensory integration account
(Grafton & Viswanathan, 2014). In this view, hand laterality is recognized by pairing
information between the seen hand's visual features and the observer's felt own hand.
In Chapter 5, I tested and found evidence for a new interpretation of the particular
configuration of response times in the hand laterality task. I demonstrated a spatial
compatibility effect for rotated pictures of hands given by the interaction between the
direction of stimulus rotation (clockwise vs. counterclockwise) and the laterality of the
motor response. These effects changed by following temporal dynamics that were
attributed to shifts of spatial attention. In the same chapter, I conducted other
psychophysics experiments that confirmed the role of spatial attention and that ruled out
the view of multisensory integration as the key aspect in determining the asymmetries of
the response times' distribution. In Chapter 6, I conducted a study with patients suffering
from Unilateral Neglect in which they performed the hand laterality task and a
visual laterality task. The findings indicated that patients failed to integrate visual
information with spatially incompatible responses irrespective of the type of task, and
depending on egocentric stimulus-response spatial codes. A general discussion is
presented in Chapter 7
Le transizioni digitali. Atti del Convegno di Santa Maria Capua Vetere, 22-23 novembre 2024
No full textDemonstração do valor adicionado: um estudo bibliográfico nas revistas nacionais constantes no portal da CAPES
No full textTCC (Graduação) - Universidade Federal de Santa Catarina. Centro Socioeconômico. Curso de Ciências ContábeisA Demonstração do Valor Adicionado teve sua origem no Balanço Social, e sua divulgação era apenas voluntária, no entanto, com a convergência das normas brasileiras de contabilidade aos padrões internacionais a legislação brasileira contábil sofreu alterações. A Lei 11.638/07 introduziu, às empresas brasileiras de capital aberto, a obrigação de publicarem a DVA. Este trabalho tem como objetivo identificar o perfil dos artigos publicados em revistas nacionais, que se encontravam disponibilizados, nos sites de cada revista, para consulta pública, no período de setembro e outubro de 2010, que tiveram como foco de pesquisa a DVA. As revistas foram localizadas no site da CAPES. Oito periódicos foram analisados, e vinte e dois artigos encontrados, no entanto apenas quatorze trabalharam com foco na DVA e serviram como população da pesquisa. A metodologia da pesquisa quanto aos objetivos ficou caracterizada como descritiva. Para a obtenção dos dados foi utilizada a pesquisa bibliográfica. A abordagem do problema se caracterizou como qualitativa e quantitativa. O periódico: Contabilidade Vista e Revista, representou 30% na quantidade total de artigos publicados. Em relação aos resultados obtidos, pode-se destacar que, dos 14 artigos, 10 são de caráter empírico. Seis pesquisas caracterizaram-se por serem predominantemente bibliográficas. O setor que obteve o maior número de pesquisas, em particular, foi o elétrico. As pesquisas abrangeram as DVA’s referentes somente até 2007. O ano com maior número de publicações foi 2008. Os autores mais referenciados foram brasileiros, destacando-se: Ariovaldo dos Santos e Márcia Martins Mendes de Luca; o autor estrangeiro com maior referência pelos artigos foi Ahmed Belkaoui. Um resultado recorrente nos artigos, de forma geral, é a superioridade do governo em receber valor adicionado. Foi evidenciado que poucas pesquisas trataram da DVA. Por último, espera-se que este trabalho possa auxiliar futuras pesquisas acerca da DVA
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