895 resultados para Caso Watergate 1972-1974


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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Reuse of record except for individual research requires license from Congressional Information Service, Inc.

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FOR HOLDINGS SEE SHELF LIST

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Tässä tutkielmassa tutkin millaisen kuvan Francis Ford Coppolan ohjaamat kolme Kummisetä-elokuvaa ja David Chasen luoman Sopranos-televisiosarjan kaksi ensimmäistä tuotantokautta antavat roomalaiskatolisesta kirkosta ja erityisesti Amerikassa toimivasta roomalaiskatolisesta kirkosta. Kummisetä-elokuvat valmistuivat vuosina 1972, 1974 ja 1990, Sopranos-sarjan kaksi ensimmäistä tuotantokautta taas esitettiin HBO-kanavalla ensimmäisen kerran vuosina 1999 ja 2000. Lähteet kattavat Amerikan katolisen kirkon historian 1900-luvun alusta aina 2000-luvun alkuun asti. Pyrin vastaamaan tutkielmassani siihen, millaisena lähteet kuvaavat katolisen ja onko kuvaukselle löydettävissä jotain syitä. Kummisetä-elokuvien kohdalla on paradoksaalista se, että ne kaikki kuvaavat menneisyyden eivätkä tekohetkensä tapahtumia, mikä mahdollisesti näkyy myös niiden tavassa kuvata katolista kirkkoa. Vaikuttaisi siltä, että varsinkin kahden ensimmäisen Kummisetä-elokuvan tapa kuvata Amerikan katolista kirkkoa pohjautuu pitkälti elokuvan tekohetken tunnelmiin. Elokuvien ohjaaja Francis Ford Coppola on myöntänyt käyttäneensä Kummisetä-elokuvien päähenkilöinä olevaa Corleone-perhettä Amerikan vertauskuvana. Elokuvien yksi kattava teema on eräänlainen maallistumiskehitys, jossa vanhan polven edustajan, don Vito Corleonen, arvot syrjäytyvät ja tilalle nousee uusi johtajapolvi Viton nuorimman pojan don Michael Corleonen hahmossa. Michael Corleone edustaa huomattavasti armottomampaa polvea kuin Vito eikä uskonto ja katolinen kirkko näy hänen elämässään juuri lainkaan. Michaelin kyyninen ja kylmäkin hahmo on mitä todennäköisemmin vertauskuva elokuvien tekohetken yleisistä tunnelmia, jolloin Watergate-skandaali kansallisella tasolla ja Vatikaanin II konsiili ja paavin kiertokirje Humanae Vitae muokkasivat rajusti perinteisen katolisuuden ja amerikkalaisuuden identiteettiä. Kolmas Kummisetä-elokuva käsittelee lähes kokonaan paavi Johannes Paavali I:n lyhyeksi jäänyttä paaviuskautta vuodelta 1978 osittain fiktioin keinoin. Elokuvan yhtäläisyydet rikoskirjailija David Yallopin menestyskirjaan In Gods Name. An Investigation into the Murder of Pope John Paul I, jossa kirjailija esittää paavin tulleen kuurian virkamiesten ja mafiosoiden murhaamaksi, ovat selkeät. Kirkosta luodaan kuva toisaalta armottomona valtakoneistona, mutta toisaalta myös hengellisenä yhteisönä, josta katuvan ihmisen on mahdollisuus löytää apua. Sopranos-televisiosarja jatkaa kahdella ensimmäisellä tuotantokaudellaan saman maallistumiskehityksen kulkua kuin kaksi ensimmäistä Kummisetä-elokuvaakin. Päähenkilö Tony Soprano perheineen on lähes täysin irrallaan katolisesta perinteestä eivätkä he enää tunne sen oppejakaan kunnolla. Silti he mieltävät itsensä katolilaisiksi. Tämä vastaa joiltain osin tutkimustuloksia todellisista amerikkalaisista katolilaisista. Kaiken kaikkiaan Kummisetä-elokuvatrilogia ja Sopranos-televisiosarja antavat katolisesta kirkosta hyvin monipuolisen ja joissain asioissa totuudenmukaisenkin kuvan, joskin tekijöiden oma henkilöhistoria ja ajan skandaalit ovat väistämättä värittäneet kirkkokuvausta. Siten ne muodostavat värikkään läpileikkauksen Amerikan katolisen kirkon kehityksestä amerikanitalialaisessa yhteisössä 1900-luvun alusta 2000-luvun alkuun.

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Este es un estudio sobre las dinámicas de seguridad en Malí durante el periodo de 2009 a 2013. La investigación busca explicar de qué manera se ha dado un proceso de securitización de los grupos insurgentes frente a la amenaza generada por la proliferación de grupos armados no estatales en el territorio comprendido entre Malí y Níger. Se toma a Níger con el ánimo de ver la existencia de un subcomplejo regional de seguridad entre este país y Malí. De esta manera se afirma que el aumento de las actividades insurgentes y terroristas en la zona compuesta por Malí y Níger se da por la proliferación de actores armados no estatales, entre los cuales se encuentran los grupos seculares e insurgentes Tuareg, las agrupaciones islamistas fundamentalistas y los grupos que se componen entre rebeldes Tuareg, criminales e islamistas, éstos actores han afectado la percepción que tiene Malí sobre su seguridad.

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Freeways are divided roadways designed to facilitate the uninterrupted movement of motor vehicles. However, many freeways now experience demand flows in excess of capacity, leading to recurrent congestion. The Highway Capacity Manual (TRB, 1994) uses empirical macroscopic relationships between speed, flow and density to quantify freeway operations and performance. Capacity may be predicted as the maximum uncongested flow achievable. Although they are effective tools for design and analysis, macroscopic models lack an understanding of the nature of processes taking place in the system. Szwed and Smith (1972, 1974) and Makigami and Matsuo (1990) have shown that microscopic modelling is also applicable to freeway operations. Such models facilitate an understanding of the processes whilst providing for the assessment of performance, through measures of capacity and delay. However, these models are limited to only a few circumstances. The aim of this study was to produce more comprehensive and practical microscopic models. These models were required to accurately portray the mechanisms of freeway operations at the specific locations under consideration. The models needed to be able to be calibrated using data acquired at these locations. The output of the models needed to be able to be validated with data acquired at these sites. Therefore, the outputs should be truly descriptive of the performance of the facility. A theoretical basis needed to underlie the form of these models, rather than empiricism, which is the case for the macroscopic models currently used. And the models needed to be adaptable to variable operating conditions, so that they may be applied, where possible, to other similar systems and facilities. It was not possible to produce a stand-alone model which is applicable to all facilities and locations, in this single study, however the scene has been set for the application of the models to a much broader range of operating conditions. Opportunities for further development of the models were identified, and procedures provided for the calibration and validation of the models to a wide range of conditions. The models developed, do however, have limitations in their applicability. Only uncongested operations were studied and represented. Driver behaviour in Brisbane was applied to the models. Different mechanisms are likely in other locations due to variability in road rules and driving cultures. Not all manoeuvres evident were modelled. Some unusual manoeuvres were considered unwarranted to model. However the models developed contain the principal processes of freeway operations, merging and lane changing. Gap acceptance theory was applied to these critical operations to assess freeway performance. Gap acceptance theory was found to be applicable to merging, however the major stream, the kerb lane traffic, exercises only a limited priority over the minor stream, the on-ramp traffic. Theory was established to account for this activity. Kerb lane drivers were also found to change to the median lane where possible, to assist coincident mergers. The net limited priority model accounts for this by predicting a reduced major stream flow rate, which excludes lane changers. Cowan's M3 model as calibrated for both streams. On-ramp and total upstream flow are required as input. Relationships between proportion of headways greater than 1 s and flow differed for on-ramps where traffic leaves signalised intersections and unsignalised intersections. Constant departure onramp metering was also modelled. Minimum follow-on times of 1 to 1.2 s were calibrated. Critical gaps were shown to lie between the minimum follow-on time, and the sum of the minimum follow-on time and the 1 s minimum headway. Limited priority capacity and other boundary relationships were established by Troutbeck (1995). The minimum average minor stream delay and corresponding proportion of drivers delayed were quantified theoretically in this study. A simulation model was constructed to predict intermediate minor and major stream delays across all minor and major stream flows. Pseudo-empirical relationships were established to predict average delays. Major stream average delays are limited to 0.5 s, insignificant compared with minor stream delay, which reach infinity at capacity. Minor stream delays were shown to be less when unsignalised intersections are located upstream of on-ramps than signalised intersections, and less still when ramp metering is installed. Smaller delays correspond to improved merge area performance. A more tangible performance measure, the distribution of distances required to merge, was established by including design speeds. This distribution can be measured to validate the model. Merging probabilities can be predicted for given taper lengths, a most useful performance measure. This model was also shown to be applicable to lane changing. Tolerable limits to merging probabilities require calibration. From these, practical capacities can be estimated. Further calibration is required of traffic inputs, critical gap and minimum follow-on time, for both merging and lane changing. A general relationship to predict proportion of drivers delayed requires development. These models can then be used to complement existing macroscopic models to assess performance, and provide further insight into the nature of operations.

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<正> 一、前言 目前,我国冶金和铸造行业的浇注作业,包括熔融金属的输送、计量、控流等工序,多为繁重的手工操作和半机械操作。西德、日本、从1972年以来,已陆续研制成功用电磁原理来实现自动定量输送装置,并提供用户使用。1974年我国压铸考察团赴西德考察,发现他们在许多大型的压铸机前都配有电磁流槽式自动输送装置。

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A low-dimensional Galerkin method, initiated by Noack and Eckelmann [Physica D 56, 151 (1992)], for the prediction of the flow field around a stationary two-dimensional circular cylinder in a uniform stream at low Reynolds number is generalized to the case of a rotating and translating cylinder. The Hopf bifurcation describing the transition from steady to time-periodic solution is investigated. A curve indicating the transitional boundary is given in the two-dimensional parameter plane of Reynolds number Re and rotating parameter alpha. Our results show that rotation may delay the onset of vortex street and decrease the vortex-shedding frequency. (C) 1996 American Institute of Physics.

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210Pb沉积计年的基本假设是大气沉降并经由湖水转入沉积物的210Pbex 通量稳定. 当沉积速率相对稳定时, 沉积物中210Pbex 的比活度将随沉积年代呈指数衰减. 湖泊水体中的210Pbex 主要随有机微粒的沉降而进入沉积物. 如果湖泊水体中有机质沉积通量出现突发增大时, 则可能显著地增大210Pbex 被清洗而转入沉积物的通量. 这种突发性清洗效应, 一方面显然不符合210Pb沉积计年的基本前提; 另一方面可能指示湖泊水体初级生产力的明显变化. 根据云南程海近代沉积物210Pbex 垂直剖面的特殊变化, 对这一问题进行讨论. 沉积物柱芯于1997年6月采自程海深水湖区. 137Cs比活度垂直剖面呈现出3峰特征, 给出了可靠的计年结果并显示出近几十年间沉积物堆积的稳定性. 而210Pbex 比活度垂直剖面呈现出特异的峰值分布, 并与Corg垂直剖面相似. 这一现象可能与制约210Pbex 转入沉积物的机制有关. 程海沉积物中Horg/Corg和Corg/Norg原子比平均值分别为5.51和7.04, 表明其有机质主要源于内生藻类残骸. 根据沉积物有机质“沉降-降解-堆积”的3阶段特征, 模拟计算出1970年以来有机碳Corg的沉积通量(F(Corg)). 不同年代210Pbex 的沉积通量(F(210Pbex ))与F(Corg)显示出很好的同步关系. 特别是1972~1974年和1986~1989年的两个时段, 二者同步增大. F(Corg)的变化导致F(210Pbex )的变化; F (210Pbex)的变化在一定程度上反映出湖泊生产力的历史变化