844 resultados para struggle
Resumo:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Resumo:
This monograph is part of the works developed in the Scientific Initiation aimed at updating and improving the Atlas of Brazilian Agrarian Question - AQAB. For pioneering and scope of work-matrix, the objective this first part focused on the development of issues related to agricultural production, being drawn maps with data from the Municipal Agricultural Production-PAM 2012; Municipal Livestock Research-PPM 2012; Production of Vegetable Extraction and Forestry-2012, all analyzed from bibliographic review and joint interpretation of tables and graphs. Pari passu, this topic allowed the development of studies on peasant farms, because they are correlated subjects. Peasant farmers produce large portion of the food served to the population. Its features are its mode of production in the field, the way in which the activities take place within the family, the struggle for their social reproduction and by the earth, the practice of polyculture, preservation of the environment and the genetic diversity of species. The surplus production is sold on the market to meet other family demands unmet by production on their properties. We understand that both terms; Peasant or Farmer, refer to the same subject, but with different interpretations of their way of social reproduction and market relations...
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
After Galileo's argument for the autonomy of science is analysed and adapted to take into account later developments of scientific practices, we conclude that, in the final analysis, it is not compelling. Nevertheless, Galileo's argument still provides a useful point of reference, for aspects of it can be interpreted to anticipate central components of the often acclaimed ideal of science as value free, so that appraising it contributes to the larger purpose of exploring how well that ideal stands up today. Finally, we will argue that residue from Galileo's struggle with the Church remains with us, making it difficult to identify the conditions that would need to be put into place today for any robust sense of the autonomy of science to be defensible. (C) 2011 Elsevier Ltd. All rights reserved.
Resumo:
The self-reproach against their own bodies seen in patients with eating disorders has led us to posit the existence of failures in the work of melancholia. Defined by Freud in 1915, this process of melancholia is aimed at repairing a loss felt as unbearable by the ego and that triggers off a violent struggle with ambivalent feelings toward the lost object. The resulting hatred is aimed at the shadow of the object that falls on the ego. Especially in anorexia nervosa, there seems to be a regressive movement that goes beyond this.
Resumo:
The self-reproach against their own bodies seen in patients with eating disorders has led us to posit the existence of failures in the work of melancholia. Defined by Freud in 1915, this process of melancholia is aimed at repairing a loss felt as unbearable by the ego and that triggers off a violent struggle with ambivalent feelings toward the lost object. The resulting hatred is aimed at the shadow of the object that falls on the ego. Especially in anorexia nervosa, there seems to be a regressive movement that goes beyond this.
Resumo:
O presente artigo parte da releitura de Barthes de Guerra e paz, de Tolstoi, para entender alguns movimentos de escritura presentes nos manuscritos de seu romance "Vita Nova". Para isso, procuramos encontrar um elemento no livro de Tolstoi que ele pretendia desenvolver em seu romance: o combate do Bem e do Mal, questão desenvolvida no último texto escrito por Barthes antes de morrer.
Resumo:
Between April 1997 and November 1999, I followed eight socially excluded female drug users in an attempt to describe their lives and living conditions. The study employs an ethnographic approach with the focus being directed at the specific woman and her life in relation to the social context where this life is lived. The study’s objective has been to describe the lives and living conditions of the eight drug-using women, as well as the extent of the opportunities available to them, as being determined by mechanisms of social exclusion. Their lives are understood on the basis of a feminist and social constructionist perspective where perceptions of ‘the drug-abusing woman’ are regarded as the result of constructions of gender and deviance. The theoretical perspectives proceeds from the idea that one is not born a woman but rather becomes one. The fundamental idea is that women become women by means of processes of femininisation, in the context of which certain ways of interpreting and presenting oneself as a woman are regarded as good and others as bad. Our images of ‘the female drug addict’ are based on how we define and interpret deviance and on the cultural and social thought and behaviour patterns we ascribe to people on the basis of bodily differences. It is images of ‘the good woman’ that defines what we regard as characteristic of ‘the bad woman’ and vice versa. The findings are organised into three main topics: femininity, living conditions and social control. The main findings are: The women described themselves as women by relating to normative messages about how women “are and should be”, and their drug use constituted a means of coping with life from their social position. Their life revolved to a large extent around money via a constant struggle to find enough to cover the rent, food and other basic necessities. And finally, how the women’s relations to societal institutions were formed by their social position as ‘female drug addicts’ and how the asymmetry of these relations produced certain fixed patterns of action for the parties involved.
Resumo:
The purpose of this thesis is to deepen the understanding of grown-up blind people’s non-verbal communication, including body expressions and paralinguistic (voice) expressions. More specifically, the thesis includes the following three studies: Blind people’s different forms of body expressions, blind people’s non-verbal conversation regulation and blind people’s experience of their own non-verbal expressions. The focus has been on the blind participants’ competence and on their subjective perspectives. I have also compared congenitally and adventitiously blind in all of the studies. The approach is mainly phenomenological and the qualitative empirical phenomenological psychological method is the primary methodological source of inspiration. Fourteen blind persons (and also some sigthed persons) participated. They have no other obvious disability than the blindness and their ages vary between 18 and 54. Data in the first two studies consisted of video recordings and data in the last study consisted of interviews. The overall results can be summarized in the following three points: 1. There are (almost) only similarities between the congenitally blind and adventitiously blind persons concerning their paralinguistic expressions. 2. There are mainly similarities between the two groups with respect to the occurrences of different body expressive forms. 3. There are also some differences between the groups. For example, the congenitally blind persons seem to have a limited ability to use the body in an abstract and symbolic way and they often mentioned that they have been told that their body expressions deviate from sighted people’s norms. But the persons in both groups also struggle to see themselves as unique persons who express themselves on the basis of their conditions and their previous experiences.
Resumo:
The aim of this thesis is to elucidate the tension between feminism and nationalism in Israel and to investigate the ways by which such discursive currents mark the identities of Israeli women. The specific field of investigation is Israeli theatre, and the identities examined are dramatic characters created by the Israeli playwright Miriam Kainy. Also examined is the character of the playwright herself. Theatre is being observed as a specific field of society in which the position of women can be clarified. What kind of women characters the Israeli theatre produces is therefore a leading question for this study. Feminist theories, focusing on gender aspects of power relations, together with the postcolonial perspective, which considers power relations by focusing on ethnicity and geopolitical aspects, provide the theoretical tools. The social constructionist viewpoint is used since it provides an appropriate understanding of important notions for the thesis, such as nation and identity, considering them as constructions created by discourse. The discourses focused upon are the national v. the feminist discourse and theatre is viewed as a discourse mediator, which is why the dramatic text is the object of the analysis. The specific method of analysis is inspired by Norman Fairclough’s critical discourse analysis. The main part of the thesis consists of a discursive analysis of five women characters, constructed within a period of about five decades, namely between the 1950s and 1990s. Each one of these characters consists of an articulation which is considered representative of a specific time-relevant discursive struggle between the two discourses in question. One of the central assumptions of the thesis is that the Israeli national identity is thoroughly masculine. The identity problems it has been causing Israeli women since the time of the pioneers until today are clearly illuminated throughout the analysis. The conclusion emphasises that the subjectpositions being introduced by Israeli national discourse, namely the ways of being a New Jew, an Israeli, collide with those introduced by feminist discourse, i.e. ways of being an independent woman subject. Nevertheless, each and every character demonstrates creative ways of transforming the discourses by aiming at a hybrid formation.
Resumo:
I rifiuti come oggetti impegnano tutte le istituzioni umane in una lotta di definizione del posto che occupano e quindi del valore che assumono. In tale dinamica la gestione dei rifiuti diventa un fatto sociale totale che coinvolge tutte le istituzioni umane in una lotta di definizione territorializzata. La storia del movimento ambientalista ci mostra come partendo dal disagio nei confronti dell’oggetto si è passati ad un disagio nei confronti delle idee che lo generano. Modernizzazione ecologica e modernizzazione democratica sembrano andare per un certo periodo d’accordo. Nei casi di conflittualità recente, e nello studio di caso approfondito di un piano provinciale della gestione rifiuti, il carattere anticipatore dell’attivismo ambientalista, sta rendendo sempre più costosi e incerti, investimenti e risultati strategici . Anche i principi delle politiche sono messi in discussione. La sostenibilità è da ricercare in una relativizzazione dei principi di policy e degli strumenti tecnici di valutazione (e.g. LCA) verso una maggiore partecipazione di tutti gli attori. Si propone un modello di governance che parta da un coordinamento amministrativo territoriale sulle reti logistiche, quindi un adeguamento geografico degli ATO, e un loro maggior ruolo nella gestione del processo di coordinamento e pianificazione. Azioni queste che devono a loro volta aprirsi ai flussi (ecologici ed economici) e ai loro attori di riferimento: dalle aziende multiutility agli ambientalisti. Infine è necessario un momento di controllo democratico che può avere una funzione arbitrale nei conflitti tra gli attori o di verifica. La ricerca si muove tra la storia e la filosofia, la ricerca empirica e la riflessione teorica. Sono state utilizzate anche tecniche di indagine attiva, come il focus group e l’intervista.
Resumo:
The scale down of transistor technology allows microelectronics manufacturers such as Intel and IBM to build always more sophisticated systems on a single microchip. The classical interconnection solutions based on shared buses or direct connections between the modules of the chip are becoming obsolete as they struggle to sustain the increasing tight bandwidth and latency constraints that these systems demand. The most promising solution for the future chip interconnects are the Networks on Chip (NoC). NoCs are network composed by routers and channels used to inter- connect the different components installed on the single microchip. Examples of advanced processors based on NoC interconnects are the IBM Cell processor, composed by eight CPUs that is installed on the Sony Playstation III and the Intel Teraflops pro ject composed by 80 independent (simple) microprocessors. On chip integration is becoming popular not only in the Chip Multi Processor (CMP) research area but also in the wider and more heterogeneous world of Systems on Chip (SoC). SoC comprehend all the electronic devices that surround us such as cell-phones, smart-phones, house embedded systems, automotive systems, set-top boxes etc... SoC manufacturers such as ST Microelectronics , Samsung, Philips and also Universities such as Bologna University, M.I.T., Berkeley and more are all proposing proprietary frameworks based on NoC interconnects. These frameworks help engineers in the switch of design methodology and speed up the development of new NoC-based systems on chip. In this Thesis we propose an introduction of CMP and SoC interconnection networks. Then focusing on SoC systems we propose: • a detailed analysis based on simulation of the Spidergon NoC, a ST Microelectronics solution for SoC interconnects. The Spidergon NoC differs from many classical solutions inherited from the parallel computing world. Here we propose a detailed analysis of this NoC topology and routing algorithms. Furthermore we propose aEqualized a new routing algorithm designed to optimize the use of the resources of the network while also increasing its performance; • a methodology flow based on modified publicly available tools that combined can be used to design, model and analyze any kind of System on Chip; • a detailed analysis of a ST Microelectronics-proprietary transport-level protocol that the author of this Thesis helped developing; • a simulation-based comprehensive comparison of different network interface designs proposed by the author and the researchers at AST lab, in order to integrate shared-memory and message-passing based components on a single System on Chip; • a powerful and flexible solution to address the time closure exception issue in the design of synchronous Networks on Chip. Our solution is based on relay stations repeaters and allows to reduce the power and area demands of NoC interconnects while also reducing its buffer needs; • a solution to simplify the design of the NoC by also increasing their performance and reducing their power and area consumption. We propose to replace complex and slow virtual channel-based routers with multiple and flexible small Multi Plane ones. This solution allows us to reduce the area and power dissipation of any NoC while also increasing its performance especially when the resources are reduced. This Thesis has been written in collaboration with the Advanced System Technology laboratory in Grenoble France, and the Computer Science Department at Columbia University in the city of New York.
La Pace Calda. La nascita del movimento antinucleare negli Stati Uniti e in Gran Bretagna, 1957-1963
Resumo:
The aim of this proposal is to offer an alternative perspective on the study of Cold War, since insufficient attention is usually paid to those organizations that mobilized against the development and proliferation of nuclear weapons. The antinuclear movement began to mobilize between the 1950s and the 1960s, when it finally gained the attention of public opinion, and helped to build a sort of global conscience about nuclear bombs. This was due to the activism of a significant part of the international scientific community, which offered powerful intellectual and political legitimization to the struggle, and to the combined actions of the scientific and organized protests. This antinuclear conscience is something we usually tend to consider as a fait accompli in contemporary world, but the question is to show its roots, and the way it influenced statesmen and political choices during the period of nuclear confrontation of the early Cold War. To understand what this conscience could be and how it should be defined, we have to look at the very meaning of the nuclear weapons that has deeply modified the sense of war. Nuclear weapons seemed to be able to destroy human beings everywhere with no realistic forms of control of the damages they could set off, and they represented the last resource in the wide range of means of mass destruction. Even if we tend to consider this idea fully rational and incontrovertible, it was not immediately born with the birth of nuclear weapons themselves. Or, better, not everyone in the world did immediately share it. Due to the particular climate of Cold War confrontation, deeply influenced by the persistence of realistic paradigms in international relations, British and U.S. governments looked at nuclear weapons simply as «a bullet». From the Trinity Test to the signature of the Limited Test Ban Treaty in 1963, many things happened that helped to shift this view upon nuclear weapons. First of all, more than ten years of scientific protests provided a more concerned knowledge about consequences of nuclear tests and about the use of nuclear weapons. Many scientists devoted their social activities to inform public opinion and policy-makers about the real significance of the power of the atom and the related danger for human beings. Secondly, some public figures, as physicists, philosophers, biologists, chemists, and so on, appealed directly to the human community to «leave the folly and face reality», publicly sponsoring the antinuclear conscience. Then, several organizations leaded by political, religious or radical individuals gave to this protests a formal structure. The Campaign for Nuclear Disarmament in Great Britain, as well as the National Committee for a Sane Nuclear Policy in the U.S., represented the voice of the masses against the attempts of governments to present nuclear arsenals as a fundamental part of the international equilibrium. Therefore, the antinuclear conscience could be defined as an opposite feeling to the development and the use of nuclear weapons, able to create a political issue oriented to the influence of military and foreign policies. Only taking into consideration the strength of this pressure, it seems possible to understand not only the beginning of nuclear negotiations, but also the reasons that permitted Cold War to remain cold.
Resumo:
At global level, the population is increasingly concentrating in the cities. In Europe, around 75% of the population lives in urban areas and, according to the European Environmental Agency (2010), urban population is foreseen to increase up to 80 % by 2020. At the same time, the quality of life in the cities is declining and urban pollution keeps increasing in terms of carbon dioxide (CO2) emissions, waste, noise, and lack of greenery. Many of European cities struggle to cope with social, economic and environmental problems resulting from pressures such as overcrowding or decline, social inequity, health problems related to food security and pollution. Nowadays local authorities try to solve these problems related to the environmental sustainability through various urban logistics measures, which directly and indirectly affect the urban food supply system, thus an integrated approach including freight transport and food provisioning policies issues is needed. This research centres on the urban food transport system and its impact on the city environmental sustainability. The main question that drives the research analysis is "How the urban food distribution system affects the ecological sustainability in modern cities?" The research analyses the city logistics project for food transport implemented in Parma, Italy, by the wholesale produce market. The case study investigates the renewed role of the wholesale market in the urban food supply chain as commercial and logistic operator, referring to the concept of food hub. Then, a preliminary analysis on the urban food transport for the city of Bologna is presented. The research aims at suggesting a methodological framework to estimate the urban food demand, the urban food supply and to assess the urban food transport performance, in order to identify external costs indicators that help policymakers in evaluating the environmental sustainability of different logistics measures
Resumo:
Synthetic Biology is a relatively new discipline, born at the beginning of the New Millennium, that brings the typical engineering approach (abstraction, modularity and standardization) to biotechnology. These principles aim to tame the extreme complexity of the various components and aid the construction of artificial biological systems with specific functions, usually by means of synthetic genetic circuits implemented in bacteria or simple eukaryotes like yeast. The cell becomes a programmable machine and its low-level programming language is made of strings of DNA. This work was performed in collaboration with researchers of the Department of Electrical Engineering of the University of Washington in Seattle and also with a student of the Corso di Laurea Magistrale in Ingegneria Biomedica at the University of Bologna: Marilisa Cortesi. During the collaboration I contributed to a Synthetic Biology project already started in the Klavins Laboratory. In particular, I modeled and subsequently simulated a synthetic genetic circuit that was ideated for the implementation of a multicelled behavior in a growing bacterial microcolony. In the first chapter the foundations of molecular biology are introduced: structure of the nucleic acids, transcription, translation and methods to regulate gene expression. An introduction to Synthetic Biology completes the section. In the second chapter is described the synthetic genetic circuit that was conceived to make spontaneously emerge, from an isogenic microcolony of bacteria, two different groups of cells, termed leaders and followers. The circuit exploits the intrinsic stochasticity of gene expression and intercellular communication via small molecules to break the symmetry in the phenotype of the microcolony. The four modules of the circuit (coin flipper, sender, receiver and follower) and their interactions are then illustrated. In the third chapter is derived the mathematical representation of the various components of the circuit and the several simplifying assumptions are made explicit. Transcription and translation are modeled as a single step and gene expression is function of the intracellular concentration of the various transcription factors that act on the different promoters of the circuit. A list of the various parameters and a justification for their value closes the chapter. In the fourth chapter are described the main characteristics of the gro simulation environment, developed by the Self Organizing Systems Laboratory of the University of Washington. Then, a sensitivity analysis performed to pinpoint the desirable characteristics of the various genetic components is detailed. The sensitivity analysis makes use of a cost function that is based on the fraction of cells in each one of the different possible states at the end of the simulation and the wanted outcome. Thanks to a particular kind of scatter plot, the parameters are ranked. Starting from an initial condition in which all the parameters assume their nominal value, the ranking suggest which parameter to tune in order to reach the goal. Obtaining a microcolony in which almost all the cells are in the follower state and only a few in the leader state seems to be the most difficult task. A small number of leader cells struggle to produce enough signal to turn the rest of the microcolony in the follower state. It is possible to obtain a microcolony in which the majority of cells are followers by increasing as much as possible the production of signal. Reaching the goal of a microcolony that is split in half between leaders and followers is comparatively easy. The best strategy seems to be increasing slightly the production of the enzyme. To end up with a majority of leaders, instead, it is advisable to increase the basal expression of the coin flipper module. At the end of the chapter, a possible future application of the leader election circuit, the spontaneous formation of spatial patterns in a microcolony, is modeled with the finite state machine formalism. The gro simulations provide insights into the genetic components that are needed to implement the behavior. In particular, since both the examples of pattern formation rely on a local version of Leader Election, a short-range communication system is essential. Moreover, new synthetic components that allow to reliably downregulate the growth rate in specific cells without side effects need to be developed. In the appendix are listed the gro code utilized to simulate the model of the circuit, a script in the Python programming language that was used to split the simulations on a Linux cluster and the Matlab code developed to analyze the data.