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Representation type of Jordan algebras

KASHUBA, Iryna; OVSIENKO, Serge; SHESTAKOV, Ivan
Fonte: ACADEMIC PRESS INC ELSEVIER SCIENCE Publicador: ACADEMIC PRESS INC ELSEVIER SCIENCE
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.85%
The problem of classification of Jordan bit-nodules over (non-semisimple) finite dimensional Jordan algebras with respect to their representation type is considered. The notions of diagram of a Jordan algebra and of Jordan tensor algebra of a bimodule are introduced and a mapping Qui is constructed which associates to the diagram of a Jordan algebra J the quiver of its universal associative enveloping algebra S(J). The main results are concerned with Jordan algebras of semi-matrix type, that is, algebras whose semi-simple component is a direct sum of Jordan matrix algebras. In this case, criterion of finiteness and tameness for one-sided representations are obtained, in terms of diagram and mapping Qui, for Jordan tensor algebras and for algebras with radical square equals to 0. (c) 2010 Elsevier Inc. All rights reserved.; FAPESP[04/05979-6]; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); FAPESP[04/02850-2]; FAPESP[05/60337-2]; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); CNPq[304991/2006-6]; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Noncommutative Jordan superalgebras of degree n > 2

POZHIDAEV, A. P.; SHESTAKOV, P.
Fonte: SPRINGER Publicador: SPRINGER
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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We prove a coordinatization theorem for noncommutative Jordan superalgebras of degree n > 2, describing such algebras. It is shown that the symmetrized Jordan superalgebra for a simple finite-dimensional noncommutative Jordan superalgebra of characteristic 0 and degree n > 1 is simple. Modulo a ""nodal"" case, we classify central simple finite-dimensional noncommutative Jordan superalgebras of characteristic 0.; Brazilian FAPESP[2008/50142-8]; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Brazilian FAPESP[2005/60337-2]; RFBR; RFBR[09-01-00157]; CNPq[304991/2006-6]; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fatores externos e internos que alteram a vida do homem e o ecossistema Manguezal do Rio Jordão - Pernambuco; External and internal factors that alter the life of man and the mangrove ecosystem of the Jordan River - Pernambuco

Silva, Jorge José Araujo da
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 18/02/2009 PT
Relevância na Pesquisa
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Em suas várias nuanças a geografia se apresenta como uma ciência interdisciplinar, com interface em muitos segmentos do conhecimento. As ramificações geográficas fazem com que esta ciência seja plural na tradicionalidade acadêmica, nos permitindo trabalhar questões cronológicas, biológicas, humanas e da natureza, como será apresentado nesta tese. A questão que fundamenta este trabalho pauta-se na necessidade de compreender os fatores externos e internos que alteram a vida do ser humano no ecossistema manguezal do Rio Jordão sob a hipótese de que, a ausência de políticas públicas gera problemas ambientais e sociais. O que será realizado ao detectar da comunidade suas correlações com o manguezal em cena. A ação degradadora do homem vai aniquilando aos poucos o ecossistema do manguezal, isso nos faz perceber que as peculiaridades inerentes ao povo vivente desta comunidade também perde sua especificidade. Consequentemente, a atividade pesqueira perde força porque a comunidade local vai sendo removida, comprometendo assim a conservação de sua cultura. O pescador passa para a condição de cidadão, usuário urbano, um simples morador a somar-se ao sistema vicioso da cultura uniformizada, característica dos centros urbanos. O eixo da tese trata inicialmente de compreender a localização da área de pesquisa e da ocupação territorial do estado envolvendo o tema; tem consequência com a realização da caracterização do manguezal em questão e do ser humano nele habitante; apresentação da análise bibliográfica; justificativas...

O design de Fred Jordan; The design of Fred Jordan

Bastos, Helena Rugai
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 08/05/2012 PT
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O desenvolvimento da obra do designer gráfico Fred Jordan e de sua experiência profissional é o objeto deste trabalho. Considerando que nas duas primeiras décadas de sua atividade não existe no Brasil um projeto acadêmico sistematizado e metodologia estabelecida para o conhecimento e para a prática na área do design gráfico, a análise aponta as diversas etapas de sua produção, que se estende de 1940 a 1990. Nesse processo, a pesquisa busca articular as diferentes fases dessa produção e os momentos históricos em que se realizam. Mostra a singularidade do trabalho de Jordan apontando­ a partir do uso da tecnologia, das técnicas, da temática, da adequação à evolução industrial e da diversificação do público consumidor - como seus projetos permitem perceber as transformações do campo de trabalho e do mercado. Dando ênfase ao cenário paulistano no qual atuou, ressalta-se seu papel no campo das artes gráficas, levando em conta o perfil dos grupos de profissionais de design no Brasil. Nesse quadro verificam-se elementos de sua formação, o círculo de amigos, o diálogo estabelecido com intelectuais, artistas e profissionais das artes visuais e do design,bem como suas áreas de interesse e de estudo. Para alcançar esse objetivo a pesquisa buscou reconstituir o itinerário do artista e de sua obra...

Deformações e isotopias de álgebras de Jordan; Deformations and isotopies of Jordan algebras

Martin, Maria Eugenia
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 04/09/2013 PT
Relevância na Pesquisa
36.77%
Neste trabalho apresentamos a classificação algébrica e geométrica das álgebras de Jordan de dimensões pequenas sobre um corpo $k$ algebricamente fechado de $char k eq 2$ e sobre o corpo dos números reais. A classificação algébrica foi realizada de duas maneiras: a menos de isomorfismos e a menos de isotopias. Enquanto que a classificação geométrica foi feita estudando as variedades de álgebras de Jordan $Jor_$ para $n \leq 4$ e $JorR_$ para $n\leq 3$. Provamos que $Jor_$ tem 73 órbitas sob a ação de $GL(V)$ e que é a união dos fechos de Zariski das órbitas de 10 álgebras rígidas, cada um dos quais corresponde a uma componente irredutível. Analogamente, mostramos que $JorR_$ tem 26 órbitas e é a união dos fechos de Zariski das órbitas de 8 álgebras rígidas. Também obtivemos que o número de componentes irredutíveis em $Jor_$ é $\geq 26$. Construímos ainda três famílias de álgebras rígidas não associativas, não semisimples e indecomponíveis as quais correspondem a componentes irredutíveis de $Jor_$ e $JorR_$ para todo $n\geq 5$.; In this work we present the algebraic and geometric classification of Jordan algebras of small dimensions over an algebraically closed field $k$ of $char k eq 2$ and over the field of real numbers. The algebraic classification was accomplished in two ways: up to isomorphism and up to isotopy. On the other hand...

The GLOWA Jordan River Atlas (Briefing 1.4)

Claus, Cornelia; Braun, Andreas; Rysavy, Anne; Tielbörger, Katja
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Sonstiges
EN
Relevância na Pesquisa
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Interdisciplinary and multinational research projects lasting over several years gather vast quantities of data and finally produce multiple outputs of the most salient findings. However, after all these challenging years scientists and particularly project coordinators face the even bigger challenge to gather and present the results of the project, as well as to make them accessible to stakeholders and scientists. This challenge has been overcome with the GLOWA Jordan River Atlas which is the first publicly accessible transregional and transdisciplinary end-user GIS for the Jordan River region. The GLOWA Jordan River Atlas has been assembled with Geopublisher, an atlas authoring system which has been developed within the frame of another GLOWA project (GLOWA IMPETUS). The atlas allows scientist to quickly create digital multimedia maps in order to present results. It supports the storage, presentation and publication of several data formats including texts, images, videos and geodata. Geopublisher is a digital, free and open source software available at Geopublishing.org. The GLOWA Jordan River Atlas can be accessed online via the project server and also stored offline on DVD, USB or hard disk. As it is based on Java, no additional software is needed to access and view the data. The Atlas comprises a brief chapter containing background information on the GLOWA Jordan River Project as well as the models and tools developed within the framework of the project. However...

Simulating expected climate change in the Jordan River region using Regional Climate Models (Briefing 1.3)

Smiatek, Gerhard
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Sonstiges
EN
Relevância na Pesquisa
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The Jordan River basin is located within the Mediterranean climate zone. In this water scarce environment, the availability of sufficient amounts of water is critical for development and, potentially, a source of regional conflicts. According to the latest report from the International Panel on Climate Change (IPCC), released in 2007, semiarid regions such as the Mediterranean are likely to experience a decrease in water resources due to climate change. This IPCC statement is based on data obtained from several Global Climate Models (GCM) and different emission scenarios. In order to investigate the impacts of climate change for the Jordan River region in detail, the resolutions of these GCMs are too coarse. Since the region is characterized by sharp gradients of main climate variables, especially rainfall, much higher spatial resolutions are required. These are obtained from Regional Climate Models (RCM) that dynamically downscale the coarse information of the GCM considering local topography, highly resolved land use and soil properties as well as more suitable model parameterizations. Trend analysis showed a statistically significant increase in temperatures of 1°C over the past 50 years. Until the year 2060, mean annual temperatures are expected to increase by 2°C with an increase in warm spell length. Furthermore...

The renaissance of an ancient technique: rain water harvesting potentials in the lower Jordan River Basin (Briefing 2.10)

Gunkel, Anne; Lange, Jens
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Sonstiges
EN
Relevância na Pesquisa
36.64%
Two thousand years ago, the Nabateans used rainwater harvesting (RWH) for water supply. They collected water for domestic purposes (urban RWH) and used surface runoff for agriculture (rural RWH). Both types of RWH have ained interest among modern-day water resources planners seeking methods to alleviate present-day water scarcity in the Lower Jordan River Basin (LJRB). Results showed that urban and rural rainwater harvesting offers significant potential for contributing to decentralized water supply in the Lower Jordan River Basin. The degree to which water resources accessed via rainwater harvesting can contribute to the region’s overall water supply is dramatically reduced during drought periods. When incorporating rainwater harvesting into a water management strategy, downstream impacts and the high temporal variability of available water must be considered. Due to population growth and increasing urbanization of land in the Lower Jordan River Basin, opportunities for urban rainwater harvesting will increase.

Evaluating the impacts of the Red Sea - Dead Sea Canal on the Amman-Zarqa and Jordan River basins: Using WEAP to measure future scenarios under climate change conditions (Briefing 2.4)

Al-Karablieh, Emad; Salman, Amer
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Sonstiges
EN
Relevância na Pesquisa
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The impact of climate change on both supply and demand of water resources in arid and semi arid regions like Jordan is projected to be severe. Climate change is expected to reduce water availability based on reduced rainfall and increased evaporation under increased temperatures. In addition, runoff as well as groundwater recharge will likely decrease, adding further stress. An increase in both domestic and agricultural demand is expected as a result of increased temperatures and evaporation rates. In Jordan, a country already struggling to close the gap between limited water resources and increasing demand due to population growth, the reduction in water availability due to climate change could have tragic consequences. Socioeconomic development and the wellbeing of the population are threatened in the absence of proper and efficient adaptation measures. Integrated Water Resources Management (IWRM) in water-limited countries such as Jordan can help to ensure sustainable management of water supplies. IWRM is greatly facilitated by the Water Evaluation and Planning (WEAP) tool. Here, WEAP was used to develop a model linking the Amman Zarqa basin (AZB) and the Jordan Valley, with the aim of informing water management approaches for both basins under climate change scenarios. A major project under planning is currently the RedSea - Dead Sea Canal (RSDSC)...

The Management of Water in the Jordan Basin in 2010

Twite, Robin; Koelsch, Verena
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: ResearchPaper
EN
Relevância na Pesquisa
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This paper is intended to contribute to the thinking of those involved in the management of the water in the Jordan Basin. It describes the situation as it was in 2010 with regard to water management and raises the question, “What changes may be needed if the problems posed by increase in temperature and decrease in precipitation are to be dealt with effectively?” The paper is based in part upon interviews with prominent experts from Israel, Jordan and Palestine. It presents the water management of the three national entities describing the relevant legal and administrative frameworks under which water is managed and comments on the situation with regard to day-to-day management. At the time of the underlying research all three national entities were in the process of reviewing the legal and administrative frameworks under which water is managed in the Jordan Basin. However there is little evidence that, in any of the thinking of the respective parties, attention is being given to the Basin as a whole or how to improve the existing structures for regional cooperation.

GLOWA JR Atlas: Results of the GLOWA Jordan River Project.

Claus, Cornelia (Hrsg.); Braun, Andreas (Hrsg.); Schloz, Daniela (Hrsg.); Tielbörger, Katja (Hrsg.)
Fonte: Universität Tübingen Publicador: Universität Tübingen
Tipo: Lehrmaterial
EN
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Bitte die ZIP-Datei downloaden und auf Ihrem Computer entzippen und dann bei Windows-Betriebssystemen auf atlas.exe drücken. Bei Linux-Systemen machen Sie bitte die Datei start.sh ausführbar und rufen diese auf. In der Datei user_manual.pdf finden Sie Hinweise zur Nutzung des Atlas.; Please download the ZIP-file and extract it on your computer. On windows operation systems click on atlas.exe. On Linux operation systems make the file start.sh executable and select it. The file user_manual.pdf is the instruction manual for using the atlas.; The GLOWA Jordan River (GLOWA JR) Atlas is an end-user geographical information system (GIS). It presents the spatial results of the GLOWA JR project and helps to visualize, organize, and analyze them. The geographical scope of the atlas is Israel, Jordan and Palestine. It includes maps about climate change and its impact on water and land resources, including ecosystems, as well as information about the impact of global change on ecosystem services, land use and agriculture. Moreover it includes maps about the potential of rainwater harvesting, managed aquifer recharge and irrigation with treated wastewater.

Syrian refugees in Jordan : a reality check

ACHILLI, Luigi
Fonte: Instituto Universitário Europeu Publicador: Instituto Universitário Europeu
Tipo: Relatório Formato: application/pdf; digital
EN
Relevância na Pesquisa
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As of February 2015, over 622,000 Syrians had registered with UNHCR in Jordan. The protracted nature of the Syrian crisis has been dramatic: both the Syrian refugees themselves and the host communities in Jordan are paying a high price. Further political and economic deterioration may follow as the number of refugees is simply too great for Jordan to deal with. The EU and its member states have been actively involved in responding to the Syrian crisis both in political and humanitarian terms. The European approach has primarily consisted in providing support to the countries bordering Syria, in order to contain the crisis within the Middle East. However, as of 2014 and early 2015, worrying changes in the Jordanian Government’s attitude towards Syrian refugees show how such an approach is becoming unsustainable.; The MPC is co-financed by the European University Institute and the European Union

La structure de Jordan des matrices de transfert des modèles de boucles et la relation avec les hamiltoniens XXZ

Morin-Duchesne, Alexi
Fonte: Université de Montréal Publicador: Université de Montréal
Tipo: Thèse ou Mémoire numérique / Electronic Thesis or Dissertation
FR
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Les modèles sur réseau comme ceux de la percolation, d’Ising et de Potts servent à décrire les transitions de phase en deux dimensions. La recherche de leur solution analytique passe par le calcul de la fonction de partition et la diagonalisation de matrices de transfert. Au point critique, ces modèles statistiques bidimensionnels sont invariants sous les transformations conformes et la construction de théories des champs conformes rationnelles, limites continues des modèles statistiques, permet un calcul de la fonction de partition au point critique. Plusieurs chercheurs pensent cependant que le paradigme des théories des champs conformes rationnelles peut être élargi pour inclure les modèles statistiques avec des matrices de transfert non diagonalisables. Ces modèles seraient alors décrits, dans la limite d’échelle, par des théories des champs logarithmiques et les représentations de l’algèbre de Virasoro intervenant dans la description des observables physiques seraient indécomposables. La matrice de transfert de boucles D_N(λ, u), un élément de l’algèbre de Temperley- Lieb, se manifeste dans les théories physiques à l’aide des représentations de connectivités ρ (link modules). L’espace vectoriel sur lequel agit cette représentation se décompose en secteurs étiquetés par un paramètre physique...

JORDAN BIMODULES OVER THE SUPERALGEBRAS P(n) AND Q(n)

MARTINEZ, Consuelo; SHESTAKOV, Ivan; ZELMANOV, Efim
Fonte: AMER MATHEMATICAL SOC Publicador: AMER MATHEMATICAL SOC
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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We extend the Jacobson's Coordinatization theorem to Jordan superalgebras. Using it we classify Jordan bimodules over superalgebras of types Q(n) and JP(n), n >= 3. Then we use the Tits-Kantor-Koecher construction and representation theory of Lie superalgebras to treat the remaining case Q(2).; MTM[2007-067884-C04-01]; FICYT[IB-08-147]; CNPq[304991/2006-6]; FAPESP[05/60337-2]; FAPESP[05/60142-7]; National Science Foundation NSF

Israeli planning policies in the Jordan Valley

Dababat, Safaa Hamada; Vieira, António; Ghodieh, Ahmed Ra'fat
Fonte: Universidade do Minho. Departamento de Geografia (DGeoUM) Publicador: Universidade do Minho. Departamento de Geografia (DGeoUM)
Tipo: Parte de Livro
Publicado em //2015 ENG
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Colecção: Atas, n.º 4; Since the Israeli occupation for West Bank in 1976, the Israeli occupation has intentionally performed the process of migrating the inhabitancy of Jordan valley in order to empty it from its Palestinian native population and build Israeli colonial settlements in it. Where the Israeli occupation has followed several policies such as: expropriation of the land and natural resources, prevent the Palestinians from building and expansion and demolition many of the residential and agricultural facilities for the excuse of not having permits, which has negatively affected all the aspects of Palestinian citizens life in the region. And in this study, the focus was pointed toward the policies that were followed by the Israeli occupation in planning for the Jordan valley region. The obstacles that were set by the Israeli occupation in front of the development planning and execution operations for the Palestinian residential communities were studied, where the majority of the Palestinian communities in Jordan valley is lacking for the basic life factors such as: water, electricity and sewage systems, they also don’t have schools and health centers to serve people there. Where all kind of services are provided in the Israeli colonial settlements that are built in Jordan valley with cheap costs in order to seduce and encourage the Israeli settlers to live in these Israeli colonial settlements.

Inundación en el barrio El Jordán y sus alrededores.; FDO00392

López, Luis; Diario de Occidente
Fonte: Biblioteca Departamental Jorge Garcés Borrero. Publicador: Biblioteca Departamental Jorge Garcés Borrero.
Tipo: historicalDocument; other; Documento histórico Formato: JPEG; 1 foto. ; 22x18 cm; Electrónico
SPA
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Un torrencial aguacero afectó la zona sur de la ciudad y ocasionó inundaciones en los barrios Jordan y sus alrededores, por falta o insuficiencia de las redes de alcantarillado. La junta de accicción comunal del Jordán se ha mostrado al clamos de sus moradores. El Archivo del Patrimonio Fotográfico y Fílmico del Valle del Cauca es responsabilidad de la Biblioteca Departamental del Valle Jorge Garcés Borrero, por convenio de cooperación suscrito con la Secretaria del Cultura Departamental, con el fin de aunar esfuerzos para su conservación, preservación y divulgación del Archivo entre la comunidad Vallecaucana, especialmente entre los estudiantes e investigadores que visitan la Biblioteca, propiciando el su uso y consulta permanente. La universidad Icesi es un colaborador en el proceso de difusión, facilitando la tecnología que permite la consulta de las imágenes.; Valle del Cauca. Gorbernación.; Tipo de fotografía: Blanco y Negro. Lugar de la toma: Barrio El Jordán, Cali. Estado de conservación: Bueno. Fecha de recolección: 28-06-2011. Ingresada por: Nathali Aguirre Salcedo.

El agua de la cuenca del río Jordán: la lucha por un recurso escaso

Izquierdo Brichs, Ferrán
Fonte: Universidade Autônoma de Barcelona Publicador: Universidade Autônoma de Barcelona
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em //1995 SPA
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El agua ha sido un elemento importante en las relaciones entre árabes e israelies, no sólo como causa de conflicto sino también por haber sido el factor central del Único intento de cooperación entre los distintos Estados de la cuenca del Jordán. Así, los recursos hidrológicos en esta región adquieren una clara dimensión política, económica y de seguridad, incluso militar. El articulo aborda estas dimensiones de la problemática del agua a lo largo de la historia del conflicto árabe-israelí.; Freshwater has been one of the key elements in Arab-Israeli relations; not only as a cause for conflict but also for its having been the main factor in the only attempt at cooperation among the different states in the Jordan basin. Thus, water resources in the region attain clear political, economic, and-even military- security dimensions of the water issue dong with the history of the Arab-Israeli conflict.

Reframing Youth Apathy in Jordan: An Anarchist Approach to Politics in the Hashemite Kingdom

Hafferkamp, Jonathan
Fonte: Universidade Duke Publicador: Universidade Duke
Publicado em 18/05/2014
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The Arab Spring’s intense, mass popular protests demonstrate young people’s capacity to catalyze significant social and political change throughout the Middle East. Interestingly, the Hashemite Kingdom of Jordan appears to be among the few countries where these widespread political shifts barely seemed to register in terms of comparable movements. This is particularly unexpected given Jordan’s central regional location and large youth majority (almost 70% of the population is under the age of thirty). Many older Jordanians describe Jordan’s youth as apathetic and disinterested in politics. However, this is a convenient, hegemonic story that may only partially explain the absence of a Hashemite “Spring.” My thesis challenges the notion of the “apathetic young Jordanian,” through an analysis of the political engagement and opinions of the underrepresented youth in Jordan. During the fall of 2012, I performed original research and data collection in Amman, Jordan (8 interviews and 126 surveys), after which it became apparent that young Jordanians are deeply interested in politics, and not simply indifferent to elections and the “Springs” occurring around them. Using a combination of fieldwork interviews and surveys in conjunction with theoretical analysis...

A Comparative study between Ireland's economic model and Jordan's current reforms: What are the characteristics Jordan can emulate?

Jallad, Yanal
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
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Jordan is a beautiful country with a rich assortment of historical, religious and geographical tourist attractions. It is both a modern and moderate nation with a hospitable people. Sandwiched in a turbulent region, Jordan must overcome these challenges while moving its economic transformation forward. Some commentators point out that Jordan can learn a great deal from countries like Ireland, who have successfully transformed their economies into globally competitive ones. By identifying and understanding the fundamental characteristics of the Irish model, Jordan would be in a better position to emulate the Irish model while maintaining its uniqueness and character. This body of work shows that in many ways Jordan has already begun emulating Ireland's model for success. While at first slow, the transformation in the last few years has been at a remarkable pace by any standards. Should Jordan continue its momentum on this course, it will not be long before other countries look to Jordan to emulate. There is still much to be done and the lessons from the Irish model continue if Jordan is to become a competitive player in the global community.

Mass psychogenic illness following tetanus-diphtheria toxoid vaccination in Jordan

Kharabsheh,Saad; Al-Otoum,Haidar; Clements,John; Abbas,Adnan; Khuri-Bulos,Najwa; Belbesi,Adel; Gaafar,Taky; Dellepiane,Nora
Fonte: World Health Organization Publicador: World Health Organization
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2001 EN
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In September 1998, more than 800 young people in Jordan believed they had suffered from the side- effects of tetanus-diphtheria toxoid vaccine administered at school; 122 of them were admitted to hospital. For the vast majority, their symptoms did not result from the vaccine but arose from mass psychogenic illness. The role played by the media, the children's parents, and the medical profession in the escalation of this mass reaction appeared, at first sight, to be unusual and even unique to the circumstances in Jordan at the time. A review of the literature showed, however, that this mass reaction was similar in many ways to previous outbreaks, even though the underlying causes varied. There are about 200 published accounts of mass responses to situations involving suspected poisoning or other events. Because such mass reactions are relatively rare and the triggers so diverse, individuals faced with responding to them are unlikely to have prior experience in how to handle them and are unlikely to take bold steps to prevent their escalation. Indeed they may be unaware that such events have been recorded before. The lessons learned from this incident in Jordan may help other immunization programme managers to handle crisis situations elsewhere.