Locating detectors for advanced traffic control strategies : handbook /

Mode of access: Internet.

A final report of the California State Assembly Statewide Information Policy Committee.

"March 1970."

Naval Reserve Officer Training Corps regulations

"NAVPERS 15034."

Proceedings of the regular Grand Lodge convention.

Mode of access: Internet.

Under the Bridge: Utilizing Covered Liminal Spaces for Sanctioned Homeless Encampments in the City of Seattle

Thesis (Master's)--University of Washington, 2016-06

Comparative evaluation of microscopic car-following behavior

Microscopic traffic-simulation tools are increasingly being applied to evaluate the impacts of a wide variety of intelligent transport, systems (ITS) applications and other dynamic problems that are difficult to solve using traditional analytical models. The accuracy of a traffic-simulation system depends highly on the quality of the traffic-flow model at its core, with the two main critical components being the car-following and lane-changing models. This paper presents findings from a comparative evaluation of car-following behavior in a number of traffic simulators [advanced interactive microscopic simulator for urban and nonurban networks (AIMSUN), parallel microscopic simulation (PARAMICS), and Verkehr in Statiten-simulation (VISSIM)]. The car-following algorithms used in these simulators have been developed from a variety of theoretical backgrounds and are reported to have been calibrated on a number of different data sets. Very few independent studies have attempted to evaluate the performance of the underlying algorithms based on the same data set. The results reported in this study are based on a car-following experiment that used instrumented vehicles to record the speed and relative distance between follower and leader vehicles on a one-lane road. The experiment was replicated in each tool and the simulated car-following behavior was compared to the field data using a number of error tests. The results showed lower error values for the Gipps-based models implemented in AIMSUN and similar error values for the psychophysical spacing models used in VISSIM and PARAMICS. A qualitative drift and goal-seeking behavior test, which essentially shows how the distance headway between leader and follower vehicles should oscillate around a stable distance, also confirmed the findings.

Regulated localization of rab18 to lipid droplets - Effects of lipolytic stimulation and inhibition of lipid droplet catabolism

Rab GTPases are crucial regulators of membrane traffic. Here we have examined a possible association of Rab proteins with lipid droplets (LDs), neutral lipid-containing organelles surrounded by a phospholipid monolayer, also known as lipid bodies, which have been traditionally considered relatively inert storage organelles. Although we found close apposition between LDs and endosomal compartments labeled by expressed Rab5, Rab7, or Rab11 constructs, there was no detectable labeling of the LD surface itself by these Rab proteins. In contrast, GFP-Rab18 localized to LDs and immunoelectron microscopy showed direct association with the monolayer surface. Green fluorescent protein (GFP)-Rab18-labeled LDs underwent oscillatory movements in a localized area as well as sporadic, rapid, saltatory movements both in the periphery of the cell and toward the perinuclear region. In both adipocytes and non-adipocyte cell lines Rab18 localized to a subset of LDs. To gain insights into this specific localization, Rab18 was co-expressed with Cav3(DGV), a truncation mutant of caveolin-3 shown to inhibit the catabolism and motility of lipid droplets. GFP-Rab18 and mRFP-Cav3(DGV) labeled mutually exclusive subpopulations of LDs. Moreover, in 3T3-L1 adipocytes, stimulation of lipolysis increased the localization of Rab18 to LDs, an effect reversed by beta-adrenergic antagonists. These results show that a Rab protein localizes directly to the monolayer surface of LDs. In addition, association with the LD surface was increased following stimulation of lipolysis and inhibited by a caveolin mutant suggesting that recruitment of Rab18 is regulated by the metabolic state of individual LDs.

ENSINAR AS MEMÓRIAS Exegese histórico-social de Deuteronômio 6,20-25

O presente estudo exegético tem por objetivo analisar o texto de Deuteronômio 6,20-25 numa perspectiva histórico-social. Para tanto, revisa-se algumas discussões exegéticas acerca do texto. Compreende-o como um ensino familiar, das famílias livres e possuidoras de terra em Judá, no século VII.a.C. Nele, narrativamente são apresentados os atos redentores de Javé: o êxodo, a dádiva da terra e das leis. Dentre esses atos, destaca-se o êxodo, como fundamento da liberdade, e sua articulação com as leis. Por sua vez as leis são a forma de manutenção da liberdade, por meio da defesa do direito dos socialmente enfraquecidos. Nessa dinâmica da catequese familiar, duas categorias são importantes, ensino e memória.

A RÁDIO COMUNITÁRIA COMO VETOR DO PROCESSO DE DEMOCRATIZAÇÃO DA COMUNICAÇÃO: a experiência do Projeto Rádio Escola e as mudanças ocorridas na Rádio Z FM, em Mauá-SP

Estudo sobre a democratização da comunicação a partir das rádios comunitárias. O objetivo é compreender como uma rádio comunitária pode ser vetor deste processo, com a apropriação, pela população local, de um meio comunitário, além de contribuir na busca por políticas públicas de comunicação e melhoria das condições de vida local. O quadro de referência é o materialismo histórico dialético. O estudo foi feito com base em pesquisa bibliográfica, como forma de constituir o referencial teórico, além do estudo de documentos e entrevistas semiestruturadas, aplicadas aos participantes do Projeto Rádio Escola, desenvolvido durante o ano de 2010, numa parceria entre a rádio comunitária Z FM e a Escola Estadual Professora Irene da Silva Costa, no município de Mauá, no ABC Paulista. A conclusão principal é que, quando uma rádio comunitária abre seus microfones de forma consequente para a população, permite-se a expressão plural de ideias, o aprendizado em relação à linguagem e ao aparato radiofônico e o aumento da percepção do direito à comunicação e da necessidade da democratização dos meios.

PERCEPÇÃO DE FATORES E SITUAÇÕES DE RISCO EM MOTORISTAS INFRATORES

O presente estudo teve como objetivo verificar a percepção de situações de acidentes de trânsito por motoristas infratores; levantar dados sócio-demográficos, fatores de riscos e fatores de proteção de motoristas infratores, como também verificou a percepção de invulnerabilidade destes motoristas infratores. A coleta de dados foi realizada através da aplicação de Escala de Percepção de Invulnerabilidade, questionário sócio-demográfico que visou caracterizar o condutor, e entrevista semi-estruturada com finalidade de conhecer as ações do condutor ao volante. A amostra foi realizada por acessibilidade. Foi adotado como critério de inclusão na amostra motoristas habilitados que acumularam mais de vinte pontos em seu prontuário da Carteira de habilitação. O estudo teve um total de 427 sujeitos, sendo 325 do gênero masculino e 102 do gênero feminino. As infrações mais cometidas foram as gravíssimas para os sujeitos habilitados entre 6 e 15 anos, independente do gênero. Em relação à Escala de Invulnerabilidade, identificou-se que a autopercepção positiva foi superior ao senso de proteção e a crença na invulnerabilidade dos sujeitos. Os sujeitos entrevistados têm em média 38 pontos no prontuário, mas consideram-se motoristas cautelosos, atentos, cuidadosos, preocupados com os outros e que procuram obedecer às leis. Verificou-se que o risco está associado com a idéia de perigo, causar danos a outras pessoas ou comprometer sua segurança. As situações de risco estão associadas ao volume excessivo de veículos, alta velocidade, não obediência às leis de trânsito, veículos mal conservados e falta de sinalização. A percepção de riscos tem muito mais a ver com a singularidade do indivíduo diante de algum evento do que com uma estimativa correta de probabilidades. Constatou-se que os níveis elevados de ameaça sempre apresentam estratégias cognitivas de minimização do risco e do seu impacto. Constatou-se que as infrações de trânsito que ocorrem têm a ver com o contexto social. Investigar sobre as possíveis variáveis psicológicas nesse contexto também é uma tarefa de grande amplitude. Os estudos realizados nessa área da psicologia de trânsito no Brasil podem dar mais um passo em direção à compreensão da complexa rede de relações envolvendo o homem, o trânsito e o ambiente.(AU)

Measuring accounting disclosure in a period of complex changes : the case of Egypt

Significant changes in accounting disclosure are observed in periods of economic change such as those relating to emerging capital markets and programs of privatization. Measurement of the level of accounting disclosure should ideally be designed to capture the complexity of change in order to give insight and explanation to match the causes and consequences of change. This paper shows the added interpretive value in subdividing the disclosure checklist to reflect the requirements of national accounting regulations, the location of disclosure items in the annual report, and limitations on the availability of regulations in official translation to the local language. Defining targeted disclosure categories leads to significance testing of specific aspects of changes in accounting disclosure in the Egyptian capital market in the 1990s. Strong correlation of disclosure with the presence of majority government ownership of the company and the relative activity of share trading supports the applicability of political costs and capital need theories, respectively. The relation between International Accounting Standards (IASs) disclosure and the type of audit firm points to additional theoretical explanations, including relative familiarity with the legislation and compliance features identifiable with the emerging capital market. The approach described in this paper has the potential for enhancing understanding of the complexity of accounting change in other emerging capital markets and developing economies.

Distributed control of computer communication systems

Flow control in Computer Communication systems is generally a multi-layered structure, consisting of several mechanisms operating independently at different levels. Evaluation of the performance of networks in which different flow control mechanisms act simultaneously is an important area of research, and is examined in depth in this thesis. This thesis presents the modelling of a finite resource computer communication network equipped with three levels of flow control, based on closed queueing network theory. The flow control mechanisms considered are: end-to-end control of virtual circuits, network access control of external messages at the entry nodes and the hop level control between nodes. The model is solved by a heuristic technique, based on an equivalent reduced network and the heuristic extensions to the mean value analysis algorithm. The method has significant computational advantages, and overcomes the limitations of the exact methods. It can be used to solve large network models with finite buffers and many virtual circuits. The model and its heuristic solution are validated by simulation. The interaction between the three levels of flow control are investigated. A queueing model is developed for the admission delay on virtual circuits with end-to-end control, in which messages arrive from independent Poisson sources. The selection of optimum window limit is considered. Several advanced network access schemes are postulated to improve the network performance as well as that of selected traffic streams, and numerical results are presented. A model for the dynamic control of input traffic is developed. Based on Markov decision theory, an optimal control policy is formulated. Numerical results are given and throughput-delay performance is shown to be better with dynamic control than with static control.

Modelling data and voice traffic over IP networks using continuous-time Markov models

Common approaches to IP-traffic modelling have featured the use of stochastic models, based on the Markov property, which can be classified into black box and white box models based on the approach used for modelling traffic. White box models, are simple to understand, transparent and have a physical meaning attributed to each of the associated parameters. To exploit this key advantage, this thesis explores the use of simple classic continuous-time Markov models based on a white box approach, to model, not only the network traffic statistics but also the source behaviour with respect to the network and application. The thesis is divided into two parts: The first part focuses on the use of simple Markov and Semi-Markov traffic models, starting from the simplest two-state model moving upwards to n-state models with Poisson and non-Poisson statistics. The thesis then introduces the convenient to use, mathematically derived, Gaussian Markov models which are used to model the measured network IP traffic statistics. As one of the most significant contributions, the thesis establishes the significance of the second-order density statistics as it reveals that, in contrast to first-order density, they carry much more unique information on traffic sources and behaviour. The thesis then exploits the use of Gaussian Markov models to model these unique features and finally shows how the use of simple classic Markov models coupled with use of second-order density statistics provides an excellent tool for capturing maximum traffic detail, which in itself is the essence of good traffic modelling. The second part of the thesis, studies the ON-OFF characteristics of VoIP traffic with reference to accurate measurements of the ON and OFF periods, made from a large multi-lingual database of over 100 hours worth of VoIP call recordings. The impact of the language, prosodic structure and speech rate of the speaker on the statistics of the ON-OFF periods is analysed and relevant conclusions are presented. Finally, an ON-OFF VoIP source model with log-normal transitions is contributed as an ideal candidate to model VoIP traffic and the results of this model are compared with those of previously published work.

Cost-effective upgrade of WDM all-optical networks using overlay fibres and hop reduction links

Fibre overlay is a cost-effective technique to alleviate wavelength blocking in some links of a wavelength-routed optical network by increasing the number of wavelengths in those links. In this letter, we investigate the effects of overlaying fibre in an all-optical network (AON) based on GÉANT2 topology. The constraint-based routing and wavelength assignment (CB-RWA) algorithm locates where cost-efficient upgrades should be implemented. Through numerical examples, we demonstrate that the network capacity improves by 25 per cent by overlaying fibre on 10 per cent of the links, and by 12 per cent by providing hop reduction links comprising 2 per cent of the links. For the upgraded network, we also show the impact of dynamic traffic allocation on the blocking probability. Copyright © 2010 John Wiley & Sons, Ltd.