943 resultados para Moving-Pictures and history
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Many critics of Doctorow have classified him as a postmodernist writer, acknowledging that a wide number of thematic and stylistic features of his early fiction emanate from the postmodern context in which he took his first steps as a writer. Yet, these novels have an eminently social and ethical scope that may be best perceived in their intellectual engagement and support of feminist concerns. This is certainly the case of Doctorow’s fourth and most successful novel, Ragtime. The purpose of this paper will be two-fold. I will explore Ragtime’s indebtedness to postmodern aesthetics and themes, but also its feminist elements. Thus, on the one hand, I will focus on issues of uncertainty, indeterminacy of meaning, plurality and decentering of subjectivity; on the other hand, I will examine the novel’s attitude towards gender oppression, violence and objectification, its denunciation of hegemonic gender configurations and its voicing of certain feminist demands. This analysis will lead to an examination of the problematic collusion of the mostly white, male, patriarchal aesthetics of postmodernism and feminist politics in the novel. I will attempt to establish how these two traditionally conflicting modes coexist and interact in Ragtime.
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This article focuses on the liminal space of the threshold in paintings by female Impressionists. It engages with Cultural theory and History of Design in order to offer a new interpretation of domestic spaces
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Understanding the microscopic mechanisms of electronic excitation in organic photovoltaic cells is a challenging problem in the design of efficient devices capable of performing sunlight harvesting. Here we develop and apply an ab initio approach based on time-dependent density functional theory and Ehrenfest dynamics to investigate photoinduced charge transfer in small organic molecules. Our calculations include mixed quantum–classical dynamics with ions moving classically and electrons quantum mechanically, where no experimental external parameter other than the material geometry is required. We show that the behavior of photocarriers in zinc phthalocyanine (ZnPc) and C60 systems, an effective prototype system for organic solar cells, is sensitive to the atomic orientation of the donor and the acceptor units as well as the functionalization of covalent molecules at the interface. In particular, configurations with the ZnPc molecules facing on C60 facilitate charge transfer between substrate and molecules that occurs within 200 fs. In contrast, configurations where ZnPc is tilted above C60 present extremely low carrier injection efficiency even at longer times as an effect of the larger interfacial potential level offset and higher energetic barrier between the donor and acceptor molecules. An enhancement of charge injection into C60 at shorter times is observed as binding groups connect ZnPc and C60 in a dyad system. Our results demonstrate a promising way of designing and controlling photoinduced charge transfer on the atomic level in organic devices that would lead to efficient carrier separation and maximize device performance.
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The Archipelago of Bijagos in Guinea-Bissau is currently subject to numerous external impacts affecting their secular equilibrium. The islands were never contemplated by the colonial development, with the exception of two modest ports in Bubaque and Bolama. The latter place was the capital of the country from 1913 to 1941. The archipelago has attracted increasing interest on the part of economic agents, most of which are incompatible with the guarantee of sustainable development. There has been a general impoverishment as regards the preservation of marine resources, particularly with regard to the internal demographic pressure from a population that has doubled since 1981 and due to other external factors related to the neighboring and subsequent migration depletion of resources not renewable. The article analyzes the main vulnerabilities that the archipelago is currently facing and how natural resources have been preserved. The article follows an interdisciplinary approach between different areas of knowledge especially in projects involving both different academic fields (biology, ecology, geography, anthropology and history), for the nonscientific practices that include actors and institutions.
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This compilation thesis contains an introductory chapter and four original articles. The studies comprising this thesis all concern aspects of how historical culture is constituted in historical media and history teachers’ narratives and teaching. It is argued that the teaching of history is a complex matter due to an internal tension resulting from the fact that history is both a product and a process at the same time. While historical facts, and knowledge thereof, are an important aspect of history, history is also a product of careful interpretation and reconstruction. This study analyses and discusses how history is constituted in history textbooks and popular history magazines, i.e. two common historical media, and in teachers’ narratives and teaching of history. The study finds that the historical media studied generally tend to present history as void of perspective, interpretation and representation, suggesting this to be the culturally warranted form of historical exposition. Moreover, the teachers studied also tend to approach history as if it were not contingent on interpretation and reconstruction. These results indicate that the history disseminated in historical media and history classrooms presents history in a factual way and disregards the procedural aspects of history. Applying the history didactical concepts of historical consciousness, historical culture and uses of history, this thesis argues that an essential aspect of historical understanding is an appreciation of the contextual contingency that characterises history. All history is conceived within a particular context that is pertinent to why and how a certain version of history is constructed. Furthermore, all history is also received within a particular context by people with particular preconceptions of history that are contextually contingent, in the sense that they are situated in a certain historical culture. Readers of historical media are members of societies and are thus affected by how history is perceived and discussed in these contexts. This thesis argues that an awareness of these aspects of history is an important factor for furthering a complex understanding of history that encompasses the tension highlighted above.
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Thesis (Ph.D.)--University of Washington, 2016-07
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We explore the impact of “game changers” on the dynamics of innovation over time in three problem domains, that of wilderness protection, women’s rights, and assimilation of indigenous children in Canada. Taking a specifically historical and cross-scale approach, we look at one social innovation in each problem domain. We explore the origins and history of the development of the National Parks in the USA, the legalization of contraception in the USA and Canada, and the residential school system in Canada. Based on a comparison of these cases, we identify three kinds of game changers, those that catalyze social innovation, which we define as “seminal,” those that disrupt the continuity of social innovation, which we label exogenous shocks, and those that provide opportunities for novel combinations and recombinations, which we label as endogamous game changers.
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Modern automobiles are no longer just mechanical tools. The electronics and computing services they are shipping with are making them not less than a computer. They are massive kinetic devices with sophisticated computing power. Most of the modern vehicles are made with the added connectivity in mind which may be vulnerable to outside attack. Researchers have shown that it is possible to infiltrate into a vehicle’s internal system remotely and control the physical entities such as steering and brakes. It is quite possible to experience such attacks on a moving vehicle and unable to use the controls. These massive connected computers can be life threatening as they are related to everyday lifestyle. First part of this research studied the attack surfaces in the automotive cybersecurity domain. It also illustrated the attack methods and capabilities of the damages. Online survey has been deployed as data collection tool to learn about the consumers’ usage of such vulnerable automotive services. The second part of the research portrayed the consumers’ privacy in automotive world. It has been found that almost hundred percent of modern vehicles has the capabilities to send vehicle diagnostic data as well as user generated data to their manufacturers, and almost thirty five percent automotive companies are collecting them already. Internet privacy has been studies before in many related domain but no privacy scale were matched for automotive consumers. It created the research gap and motivation for this thesis. A study has been performed to use well established consumers privacy scale – IUIPC to match with the automotive consumers’ privacy situation. Hypotheses were developed based on the IUIPC model for internet consumers’ privacy and they were studied by the finding from the data collection methods. Based on the key findings of the research, all the hypotheses were accepted and hence it is found that automotive consumers’ privacy did follow the IUIPC model under certain conditions. It is also found that a majority of automotive consumers use the services and devices that are vulnerable and prone to cyber-attacks. It is also established that there is a market for automotive cybersecurity services and consumers are willing to pay certain fees to avail that.
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This chapter discusses the botany and history, importance, breeding and genetics, molecular genetics, micropropagation (to control viruses), somatic cell genetics, genetic manipulation and cryopreservation of banana and plantain.
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Relief shown pictorially.
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This article sets out to demonstrate how the exclusive equation of emotions with femininity is a cultural and historical construction. It analyzes the close, though often veiled, relationship between masculinity and sentiment in American culture and history, especially with a view to demonstrating the political potential of men’s emotions to transform the existing social order. The argument is that friendships and emotional attachments between men could contribute not only to enriching men’s emotional lives but also, and above all, to erasing sexism, racism, and homophobia from our societies. It is argued that men’s friendships with other men might play a fundamental role in promoting greater social equality, as a number of Walt Whitman’s poems, all of them written in the first person, will help illustrate.