197,119 research outputs found
High-order Finite Volume WENO schemes for non-local multi-class traffic flow models
No full textThis paper focuses on the numerical approximation of a class of non-local systems of conservation laws in one space dimension, arising in traffic modeling, proposed by [F. A. Chiarello and P. Goatin. Non-local multi-class traffic flow models. Networks and Heteroge-neous Media, to appear, Aug. 2018]. We present the multi-class version of the Finite Volume WENO (FV-WENO) schemes [C. Chalons, P. Goatin, and L. M. Villada. High-order numerical schemes for one-dimensional non-local conservation laws. SIAM Journal on Scientific Computing, 40(1):A288–A305, 2018.], with quadratic polynomial reconstruction in each cell to evaluate the non-local terms in order to obtain high-order of accuracy. Simulations using FV-WENO schemes for a multi-class model for autonomous
and human-driven traffic flow are presented for M =
Conclusioni a INGELLIS AG, PIETROFORTE M (a cura di),Giovani e lavoro. Una ricerca sul campo in provincia di Taranto
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The cylindrical drift chamber for the meg II
No full textThe MEG experiment, at PSI in Switzerland, aims at searching the charged lepton flavor violating
decay m+ ! e+g. MEG has already determined the world best upper limit on the branching ratio: BR<4.2×10−13
@90\%CL with the full data set collected in the years 2009-2013. The new positron tracker is a high transparency single volume, full stereo cylindrical Drift Chamber (DC), immersed in a non uniform longitudinal B-field, co-axial to the muon beam line with length of 1:93 m, internal radius of 17 cm and external radius of 30 cm. It is composed of 10 concentric
layers, divided in 12 identical sector of 16 drift cells each. The single drift cell is approximately
square, with a 20 mm gold plated W sense wire surrounded by 40 mm silver plated Al field wires in a ratio of 5:1. For equalizing the gain of the innermost and outermost layers, two guard layers have been added at proper radii and at appropriate high voltages. The total number of wires amounts to 12288 for an equivalent radiation length per track turn of about 1.45x10-3 X0 when the chamber is filled with an ultra-low mass gas mixture of helium and iso-butane. Due to the high wire density (12wires=cm2), the use of the classical feed-through technique as wire anchoring system could hardly be implemented and therefore it was necessary to develop new wiring strategies. The number of wires and the stringent requirements on the precision of their position and on the uniformity of the wire mechanical tension impose the use of an automatic system (wiring robot) to operate the wiring procedures. Several tests have been performed in different prototypes of the drift chamber, exposed to cosmic rays, test beams and radioactive sources, to fulfill the requirement on the spatial resolution to be less than 110 mm. The drift chamber is currently under construction at INFN and should be completed by the end of 2017 to be then delivered to PSI
Marcelino Chiarello: reflex?es de uma trajet?ria de vida e significados de uma morte tr?gica
No full textThe objective of the research was to analyze the trajectory of Marcelino Chiarello who was a
teacher and councilor, in Chapec?-SC, and community and Union of Workers in Education
leadership of The State of Santa Catarina (Sinte). He was found hanged at his house on
November 28, 2011.The incient caused social commotion, since it was considered homicide
inicially, according to the report of the lawyer who worked for Medical-Legal Institute (MLI),
and by Civil Police investigations. Afterwards, police investigations were conducted for a
suicide thesis, through the report of Medical-Legal Institute (MLI). After the first report, two
others were presented, one being a certificate of suicide, prepared by Federal Police staff, and
a second one that reported homicide thesis, prepared by the group of Legal Medicine at USP.
The political formation of Marcelino was rooted in a relationship with the regional social
movements, and it had a strong influence on the figure of Bishop Dom Jos? Gomes, and on
social doctrine of Catholic Church. Aspects presented to Chiarello Case start from this
correlation between the process of territorial building of the west of Santa Catarina and of
Chapec? in specific. There are political, cultural, economic and social elements whose
accumulate, influence, denote clashes by position and power. In this respect, local political
history has features of past that are based on bossism/coronelist model, with cases of political
violence (e.g., lynching of 1950). Marcelino death can feature, depending on the angle of
observation, or the version to the case, similarities to the political tradition based on
bossism/coronelist, since when councilor, Marcelino denounced to the Public Ministry, some
cases of corruption against local political actors. In this research, 3 were made interviews by
the author, in addition to the analysis of interviews granted to local media. As sources of
research, the analysis of the Marcelino Chiarello the CEOM, personal collection materials of
Pedro Chiarello, a significant amount of journalistic materials about the case, in addition to
the investigative process analysis and produced reports about the death of Marcelino and the
participation in events related to the case as Seminars and the release of the Popular
Judgement Case Chiarello. It was a qualitative research, whose conceptual narrative went
through Walter Benjamin and the historiographical approach used was the Micro-history,
passing by the Social History and Political History, making use of the methodological
principle of Carlo Ginzburg known as indicting paradigm. The signification of a interrupted
life by a tragic death, by the further impact, by the strong mobilizations of the Forum in
Defense of Life, by justice and Democracy and other repercussions, pointed that Marcelino
Chiarello?s journey constitutes historical fact, and based on Micro-History, microanalysis
sought to bring elements of comprehension of Regional History which contribute to
historiography.O objetivo da pesquisa foi analisar a trajet?ria de Marcelino Chiarello, o qual foi professor e
vereador, no munic?pio de Chapec?-SC, e lideran?a comunit?ria e do Sindicato dos
Trabalhadores em Educa??o de Santa Catarina (Sinte). Em 28 novembro de 2011, Chiarello
foi encontrado enforcado em sua resid?ncia. O fato causou como??o social, visto que foi
tratado inicialmente como homic?dio, pelo laudo do legista do Instituto M?dico Legal (IML),
e pelas investiga??es da Pol?cia Civil. Posteriormente, as investiga??es policiais foram
conduzidas para a tese de suic?dio, por meio de um primeiro laudo do Instituto Geral de
Per?cias (IGP). Ap?s o primeiro laudo, outros dois foram apresentados, sendo um atestando
para suic?dio, elaborado por equipe da Pol?cia Federal, e outro que apontou para a tese de
homic?dio, elaborado por equipe de Medicina Legal da USP. A forma??o pol?tica de
Marcelino esteve alicer?ada na rela??o com os movimentos sociais regionais, e teve na figura
do Bispo Dom Jos? Gomes e na Doutrina Social da Igreja Cat?lica, uma forte influ?ncia. Os
aspectos postos para o Caso Chiarello partem desta correla??o entre ao processo de
constru??o territorial do oeste catarinense, e de Chapec? em espec?fico. Esse processo de
constru??o territorial constitui-se de elementos pol?ticos, culturais, econ?micos e sociais que
se acumulam, influenciam, e denotam embates por posi??o, por poder. Neste aspecto, o
hist?rico pol?tico local ? constitu?do por caracter?sticas do passado que se assentam no modelo
mandonista/coronelista, com casos de viol?ncia pol?tica (como por exemplo, o linchamento de
1950). A morte de Marcelino pode caracterizar, dependendo do ?ngulo de observa??o ou da
vers?o que se assume para o fato, semelhan?as com a tradi??o pol?tica assentada neste modelo
mandonista/coronelista, visto que Chiarello, durante seu mandato de vereador, denunciou ao
Minist?rio P?blico alguns casos de corrup??o contra agentes pol?ticos locais. Nesta pesquisa,
foram feitas 3 entrevistas pelo autor, al?m da an?lise de entrevistas concedidas aos meios de
comunica??o locais. Como fontes de pesquisa, a an?lise do acervo de Marcelino Chiarello no
arquivo do CEOM, de materiais de acervo pessoal de Pedro Chiarello, uma quantidade
significativa de mat?rias jornal?sticas sobre o caso, al?m da an?lise do processo investigat?rio
e dos laudos produzidos acerca da morte de Marcelino e a participa??o em eventos
relacionados ao caso, como Semin?rios e o lan?amento do Julgamento Popular do Caso
Chiarello. Foi uma pesquisa qualitativa, cuja conceitual da narrativa passou por Walter
Benjamin e a abordagem historiogr?fica utilizada foi a Micro-Hist?ria, transitando pela
Hist?ria Social e Hist?ria Pol?tica, fazendo uso do princ?pio metodol?gico de Carlo Ginzburg
conhecido como paradigma indici?rio. A significa??o de uma vida interrompida por uma
morte tr?gica, pela repercuss?o posterior, pelas mobiliza??es intensas do F?rum em Defesa da
Vida, por Justi?a e Democracia e demais repercuss?es, apontam que a trajet?ria de Marcelino
Chiarello constitui fato hist?rico, e sob o vi?s da Micro-hist?ria, a microan?lise buscou trazer
elementos de compreens?o da Hist?ria Regional, que contribuam para a historiografia
2007 Guideline for isolation precautions : preventing transmission of infectious agents in healthcare settings. Last update: July 2023
No full textAcknowledgement: The authors and HICPAC gratefully acknowledge Dr. Larry Strausbaugh for his many contributions and valued guidance in the preparation of this guideline.Suggested citation: Siegel JD, Rhinehart E, Jackson M, Chiarello L, and the Healthcare Infection Control Practices Advisory Committee, 2007 Guideline for Isolation Precautions: Preventing Transmission of Infectious Agents in Healthcare Settings https://www.cdc.gov/infectioncontrol/guidelines/isolation/index.htmlIsolation-guidelines-H.pd
Securing Wireless Infrared Communications Through Optical Chaos
No full textA wireless infrared optical chaotic communication system, for the secure transmission of a digital message at hundreds of megabits per second is presented. A numerical investigation of the system is performed for various configurations, to evaluate the synchronization error and the Q-factor with respect to the impairments due to the indoor infrared channel
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