1,097 research outputs found
Andrew Sarris and the Politique des Auteurs (1962-1974): An Assessment and an Analysis
No full textThe politique des auteurs was, from the period 1968 through 1973, the dominant methodology in cinematic criticism. It was tentatively formulated by Francois Truffaut in 1954 and greatly expanded upon by Andrew Sarris in 1962. Briefly, the “auteur theory” (as it is known in English speaking countries.) contends that aesthetically important films are the product of an auteur--an equivalent term to author in a work of literature or composer as opposed to conductor in a musical composition--and that that auteur is usually the film’s director. The quality of the film under scrutiny is directly related to the ability of that auteur to express his personality on film, his technical expertise, the relation of the film to the auteur\u27s entire oeuvre, and to the tensions between the artist\u27s accomplishments and the circumstances under which he had to work. This thesis is an exploration into and an assessment of the successes and failures of the “auteur theory” as employed by Sarris and those who were influenced by his thought. It concludes with the author\u27s speculation about the future of auteurism as it relates to new cinematic methodologies (specifically genre criticism and structuralism) which are becoming more and more common
Reynolds number effect of the turbulent micropolar channel flow
No full textThe turbulent regime of non-Newtonian flows presents a particular interest as flow behavior is directly affected by the internal microstructure type of the fluid. Differences in the dispersed phase of a particle laden flow can either lead to drag reduction and turbulence attenuation or to drag and turbulence enhancement in polymer flows and dense suspensions, respectively. A general concept of non-Newtonian fluid flow may be considered in a continuous manner through the micropolar theory, recognizing the limitations that bound this theory. In recent articles [Sofiadis and Sarris, "Microrotation viscosity effect on turbulent micropolar fluid channel flow,"Phys. Fluids 33, 095126 (2021); Sofiadis and Sarris, "Turbulence intensity modulation by micropolar fluids,"Fluids 6, 195 (2021)], the micropolar viscosity effect of the turbulent channel flow under constant Reynolds number and its turbulent modulation were investigated. The present study focuses on the investigation of the turbulent micropolar regime as the Reynolds number increases in a channel flow. Findings support that the micropolar stress, which was found to assist turbulence enhancement in the present model, attenuates as Re increases. Effects on the friction behavior of the flow, as Reynolds number increases, become more important for cases of higher micropolar viscosity, where a reverse drag behavior is observed as compared to lower micropolar viscosity ones. Finally, turbulence intensification for these cases declines close to the wall in contrast to lower micropolar viscosity flows, which manage to sustain high turbulence and increase drag in the near-wall region along with Re. © 2022 Author(s)
Spatial Analysis Utilities: a quantitative tool for studies on archaeological distribution
No full textLo studio delle caratteristiche distributive delle maglie insediative è uno dei temi più importanti della ricostruzione dei paesaggi storici. Sfortunatamente, raggiungere risultati significativi in questo settore richiede conoscenze avvanzate in tecniche GIS oltre che metodi geo-statistici. Inoltre, l'applicazione dell'analisi spaziale alla ricerca archeologica richiede una ampio e importante investimento in software e hardware per l'applicazione dei suddetti metodi. In modo da risolvere alcuni di questi problemi, recentemente è stato avviato un progetto di sviluppo di uno strumento analytico per lo studio delle distribuzioni spaziali. Questo software non si presenta come una vera e propria applicazione GIS ma come una utilità per l'elaborazione dei dati. Infatti, lo scopo principale di Spatial Analysis Utilities è quello di raggiungere in un modo veloce e semplice l'intero processo di analisi. La filosofia dell'applicazione è quella di fornire a utenti non specializzati in campo GIS risultati statistici raffinati con semplici comandi.The study of the distributive characteristics of settlement patterns is one of the most important topics in the recon-struction of historical landscapes. Unfortunately, advanced knowledge of GIS techniques, as well as quantitative techniques and methods are required in order to achieve positive results in this area. Furthermore, the application of spatial analysis in the ar-chaeological research requires a large and expensive investment of software and hardware to accomplish such tasks. In order to address all these issues, this year we started the development of an analytical tool for the study and analysis of spatial distributions. This software rather than a GIS application shall be conceived as a general utility for data processing. In fact, the main aim of Spatial Analysis Utilities is to accomplish in a quick and easy manner the entire quantitative process. The philosophy of the software is to provide conclusive statistical data with just some mouse clicks to non advanced GIS users
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Indigenous Memory and Nature Interact: Native Californian Stories | Greg Sarris and Beth Piatote (Lecture, 75 minutes)
No full textIndigenous Memory and Nature Interact: Native Californian Stories | Greg Sarris and Beth Piatote (Fall 2022 Speaker Series)Lecture, 75 minutes; Part of the Fall 2022 Speaker Series (Landscapes of Migration, Incarceration and Resistance)Click the title and scroll to the gray box below to access the video.Friday, September 2, 2022 Recording of presentation at @BAMPFA Osher Theater; free and open to the publicSpeakers:Greg Sarris, Tribal Chairman, Federated Indians of Graton Rancheria (Coast Miwok) and Author In conversation with Beth Piatote, Associate Professor of Comparative Literature and English, UC Berkeley; Director, Arts Research CenterDescription:Indigenous leader and author Greg Sarris joined Assoc. Prof. of Comparative Literature and English Beth Piatote to discuss how literature and nature intersect with stories of Bay Area Native American history. Sarris shared insights from his memoir Becoming Story, which explores Coast Miwok culture. Centering Native lands, such as Angel Island (Coast Miwok territory) can frame a dialogue about Native American resistance and persistence in the face of settler colonialism and global migration.UC Berkeley Arts + Design Fridays: Landscapes of Migration, Incarceration, and Resistance is a lively series of talks by artists, performers, scholars, and activists exploring themes of global and US migration, exclusion, and belonging. It is also a UC Berkeley course offered as Humanities 20: Explorations of Art + Design. Organized by Susan Moffat, Creative Director of Future Histories Lab and Executive Director of the Global Urban Humanities Initiative and by Lisa Wymore, Professor of Theater, Dance and Performance Studies and Faculty Advisor of Berkeley Arts + Design. Hosted by Susan Moffat.—This speaker series is part of a program of music and dance performances, exhibitions, public conversations, and courses called A Year on Angel Island (futurehistories.berkeley.edu/angel-island/), using the historic Angel Island Immigration Station in San Francisco Bay as a jumping-off point to consider landscapes from China to Australia to Mexico as sites of memory and meaning.A Year on Angel Island is organized by Future Histories Lab and the Arts + Design Initiative. UC Berkeley departmental cosponsors include the Departments of Music; Theater, Dance, and Performance Studies; Ethnic Studies; History; and American Studies. Campus partners include the Arts Research Center, the Berkeley Interdisciplinary Migration Initiative, On the Same Page, Othering and Belonging Institute, Center for Race & Gender, Worth Ryder Gallery, and BAMPFA. Our community partner is the Angel Island Immigration Station Foundation
The demand for commodity insurance by developing country agricultural producers - theory and an application to cocoa in Ghana
No full textThe author considers the benefit to agricultural producers of commodity price insurance that provides in every year-but in advance of the resolution of production and price uncertainty-a minimum price for a fixed or variable portion of production. Under the assumption that producers do not change their long term production and income diversification pattern, the author suggests a theoretical framework that leads to explicit formulas of the benefit in providing this type of insurance. He shows that this benefit depends not only on the actuarially fair insurance premium, but also on household-specific factors that depend on the attitudes to risk, the consumption smoothing parameters, and the household-specific exposures to income risks. The author applies the theoretical framework for Ghana, using the Ghana Living Standards Survey data to specify various classes of cocoa-producing households and monthly price data for both domestic and international prices, to formulate appropriate models for ascertaining price risks faced by producers. The author gives empirical estimates of the actuarially fair premium, and shows that they are smaller than market-based put option prices from organized exchanges. The overall benefit in providing minimum price insurance to households, however, turns out to be substantially higher than the actuarially fair premiums and the market-based put option prices. This is due to both the magnitude of the uncertainties facing the households, as well as their risk and consumption smoothing behavior.Labor Policies,Environmental Economics&Policies,Health Economics&Finance,Economic Theory&Research,Payment Systems&Infrastructure,Environmental Economics&Policies,Economic Theory&Research,Health Economics&Finance,Insurance&Risk Mitigation,Services&Transfers to Poor
Mappe digitali per lo studio dei paesaggi medievali
No full textDuring the last five years the LIAAM (Laboratory of Computer Science Applied to Medieval Archaeology) of the
Siena University has worked heavily on developing and testing a wide range of digital cartography related to archaeological
data. In this paper we will discuss our approach to the management of a complex cartographical data set, focusing particularly
on what kind of data archaeologists need and on how to relate these maps to possible research applications and management
alternatives. Another important point is represented by the requirement of data exchange with local and regional administrations;
this process has to be bi-directional (archaeologists acquire basic maps and return maps of archaeological risk) in order
to really let our discipline be part of landscape administration processes. The GIS platform of the Archaeological Map of the
Siena Province represents a valid model for both of the main points explained above; it has produced good results in fact of
historical knowledge improvement
Closed-form solutions for the analysis of artificial dielectric layers under generic field incidence
No full textWe present an analytical method to model artificial dielectric layers (ADLs) of finite height. Starting from the closed-form solution for the scattering from a single layer under plane wave illumination, the formulation is extended to the multi-layer case, by including the higher-order interaction between parallel layers in analytical form. The method can be used to describe the radiation of a source located in the close proximity of the ADL. Experimental data obtained from a prototype demonstrator are presented and show a good agreement with the results of the theoretical analysis.Accepted author manuscriptTera-Hertz Sensin
Capacity evaluation of LoS-optimised and standard MIMO antenna arrays at 5.2 GHz
No full textIn this paper, the channel capacity of MIMO communication systems is evaluated from measurements in a home environment at 5.2 GHz. The capacity performance of a novel line-of-sight (LoS)-optimised antenna array architecture is investigated and compared to that of standard MIMO antenna arrays with one-wavelength inter-element spacing. Several transmit/receive locations are taken into account including LoS, non-LoS and obstructed-LoS areas. The results reveal that the proposed architecture can offer a significant capacity increase (more than 50%) in LoS environments compared to standard MIMO arrays. On the other hand, in non-LoS scenarios the performance of the proposed array is similar to the standard architectur
A Planar Wideband Wide-Scan Phased Array: Connected Array Loaded with Artificial Dielectric Layers
No full textWe present a novel concept for wideband, wide-scan phased array applications. The array is composed by connected-slot elements loaded with artificial dielectric superstrates. The proposed solution consists of a single multi-layer planar printed circuit board (PCB) and does not require the typically employed vertical arrangement of multiple PCBs. This offers advantages in terms of complexity of the assembly and cost of the array. We developed an analytical method for the prediction of the array performance, in terms of active input impedance. This method allows to estimate the relevant parameters of the array with a negligible computational cost. A design example with a bandwidth exceeding one octave (VSWR<2 from 6.5 to 14.3 GHz) and scanning up to 50 degrees for all azimuth planes is presented.Accepted author manuscriptTera-Hertz SensingElectronic
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