Risk Management or Uncertainty Governance? The Challenge of an Interdiscplinary Approach

Peer-reviewed

Presentación del Dossier 'Empresas y empresarios en una Argentina en cambio: inmigrantes, redes sociales y estrategias económicas (siglos XIX y XX)'

La finalidad de este dossier temático que se publica en el Boletín Americanista es dar a conocer algunos de los trabajos más relevantes sobre la historia de la empresa y de los empresarios en la Argentina tomando como corte temporal los siglos XIX y XX y, en concreto, la manera en que las empresas y los empresarios del país o radicados en él adecuaron sus prácticas al contexto de transformaciones económicas sufridas por el Cono Sur latinoamericano durante su integración al mercado internacional. Los inmigrantes, las redes sociales y las estrategias económicas son las claves de análisis abordadas en cada uno de los trabajos, los cuales tienen como finalidad mostrar la diversidad regional y temporal de las distintas experiencias empresariales argentinas estudiadas. Se incluyen los trabajos de: A. Reguera, 'Por el testamento habla la red. Estancias, bienes y vínculos en la trama empresarial de Juan Manuel de Rosas (Argentina, siglo XIX)'; L. Méndez, 'El león de la cordillera'. Primo Capraro y el desempeño empresario en la región del Nahuel Huapi, 1902-1932'; A. Mateu y H.Ocaña, 'Una mirada empresarial a la historia de la vitivinicultura mendocina (1881-1936)'; V. Palavecino, 'Comerciantes-empresarios en el medio rural argentino a comienzos del siglo XX. El estudio de caso de los Hnos. Vulcano y su Casa de Comercio 'El Progreso''; S. Fernández, 'Crecimiento urbano y desarrollo local. Empresas y municipio en el negocio de la energía eléctrica en Argentina (1888-1947): el caso de la ciudad de Rosario'; M. Rougier, 'Expansión y crisis de una empresa industrial argentina. Historia de la Fábrica de Vidrios y Opalinas Hurlingham, 1948-1994'. Dossier citado por: Evelyne Sanchez (2007), Las élites empresariales y la independencia económica de México. Estevan de Antuñano o las vicisitudes del fundador de la industria textil moderna (1792-1847). México, Plaza y Valdés, Fundación Miguel Alemán, BUAP.

Excavacions arqueològiques a la Catedral de Tarragona (2000-2002)

La catedral de Tarragona es el edificio más importante de la Edad Media en la ciudad. Se asienta en una zona arqueológica de primera magnitud como es la parte alta de Tarragona, en medio de la gran plaza del recinto de culto imperial de Tarraco, lugar en el cual después se erigió la sede visigoda de la ciudad. La ejecución del Plan Director de la Catedral de Tarragona, proyecto de los arquitectos Joan Figuerola y Joan Gavaldà, conlleva la realización de una serie de importantes actuaciones arqueológicas tanto en el subsuelo como en arqueología vertical. Con esta comunicación presentamos un primer avance de los trabajos realizados entre los años 2000 y 2002, con la siguiente evolución: época flavia (construcción del recinto sagrado imperial, con restos conservados de nueve metros de alto); antigüedad tardía (desmontaje del recinto de culto y construcción de nuevas estancias posiblemente relacionables con la ocupación habitada de la zona -¿episcopio?-); edad media (construcción de la canóniga cardenalicia y templo sobr el antiguo emplazamiento cultural romano. Estructura monástica adaptada a los precedentes romanos. Apertura de capillas en el claustro); época moderna y contemporánea (reformas y transformaciones de la catedral).

La plaça del Diamant compleix 50 anys. Les influències d'Armand Obiols i de Joan Sales

L'objecte d'estudi d'aquest assaig de recerca en literatura és el de conèixer a fons les influències que rebé Mercè Rodoreda per a la redacció de les variants d'autor de la seva obra mestra 'La plaça del Diamant'. Concretament analitzarem exhaustivament les influències del reconegut escriptor i crític literari Armand Obiols i, així mateix, les de l'editor Joan Sales i Vallès. Per a aquesta fi ens servirem de dos epistolaris recentment publicats: 'Cartes a Mercè Rodoreda' d'Armand Obiols i 'Mercè Rodoreda. Joan Sales. Cartes completes (1960-1983)'.

Comparação do Coeficiente Global de Perdas de Calor para casa de vegetação aquecida usando diferentes técnicas para eficiência energética

O Coeficiente Global de Perdas de Calor (U) permite o equacionamento das necessidades térmicas de uma casa de vegetação climatizada. No presente trabalho, determinou-se esse coeficiente cujo referencial foi uma casa de vegetação localizada em Madri (Espanha), em que foram utilizadas medidas noturnas de temperatura do ar no interior, no exterior, bem como o consumo de energia para aquecimento. As comparações entre as técnicas de aquecimento utilizadas foram: solo radiante e aerotermos combinados com duas técnicas que visavam a promover melhor aproveitamento térmico, ou seja, a utilização de cobertura plástica formando dupla capa ou a utilização de túnel plástico. Os menores coeficientes foram conseguidos para a utilização de solo radiante com túnel e aerotermos com dupla capa com 7,19 W m-2 ºC-1 e 9,11 W m-2 ºC-1, respectivamente; o maior valor dentre os coeficientes nas condições estudadas foi 15,13 W m-2 ºC-1 ao considerar o uso de aerotermos sem utilização de plásticos. Conclui-se, portanto, que os resultados comprovam o melhor rendimento térmico para as técnicas ensaiadas.

Effect of zone and crops rotation on Ischaemum rugosum and resistance to bispyribac-sodium in Ariari, Colombia

The objectives of this research were to evaluate (1) weed species presented in rice fields in relation to the geographical zone and crop rotation and (2) the resistance level of Ischaemum rugosum to the herbicide bispyribac-sodium. For the first objective, were sampled 79 commercial fields of rice to establish weed density, coverage, and rotation system in the evaluated fields with record of bispyribac-sodium application of at least five years. To reach the second objective, the seeds were collected from plants in commercial fields with different control levels of bispyribac-sodium herbicide. Seeds were germinated in trays under controlled conditions. When plants presented three leaves these were treated with bispyribac-sodium at different doses. Percentages of control and dry weight of plants were evaluated 12 days after treatments (dat). Dominant species in evaluated fields was I. rugosum, with a frequency of 100%, presenting escapes to different chemical commercial treatments. No significant differences were recorded between rotation systems, nevertheless, the most of I. rugosum population was found in the system rice-fallow-rice. The response of applications at different concentrations allows concluding that 65% of samples had resistance at different degrees reported as indexes from 2 to 42 which are related to rotation systems.

EFFECT OF POST-EMERGENCE HERBICIDE APPLICATIONS ON RICE CROP WEED COMMUNITIES IN TOLIMA, COLOMBIA

ABSTRACTThe weed communities of agricultural systems are dynamic and respond to changes in agronomic practices. This study aimed to evaluate the effect of post-emergence herbicide control programs made by farmers on weed communities and commercial lots of rice. The evaluations were carried out in 96 commercial lots located in the Centro, Meseta and Norte zones of the department of Tolima. In each lot, 1 ha was marked off, in which the evaluations were carried out by randomly throwing a 0.2 x 0.2 m sampling-square 5 times. Samples were taken before the first post-emergence application, after the first post-emergence application, after the second post-emergence application, and once the post-emergence applications were finished. The evaluated variables included density and cover of the weeds and the crops. The IVI of each species was calculated and the control program was analyzed in terms of decreases in the number of individuals for the 15 more encountered species. Before the applications, higher density values were found. The first and second post-emergence applications reduced the average density by 41% and 12%, respectively, throughout the department. Between the first and fourth evaluations, the density of the weeds and crops decreased throughout the department by 51.7% and 39%, respectively. The weed density variable proved to be the most influential in the populations after the herbicide programs were carried out.

Effect of air-temperature and diet composition on the drying process of pellets for japanese abalone (Haliotis discus hannai) feeding

The aim of this research was to study the effect of air-temperature and diet composition on the mass transfer kinetics during the drying process of pellets used for Japanese Abalone (Haliotis discus hannai) feeding. In the experimental design, three temperatures were used for convective drying, as well as three different diet compositions (Diets A, B and C), in which the amount of fishmeal, spirulin, algae, fish oil and cornstarch varied. The water diffusion coefficient of the pellets was determined using the equation of Fick's second law, which resulted in values between 0.84-1.94×10-10 m²/s. The drying kinetics was modeled using Page, Modified Page, Root of time, Exponential, Logarithmic, Two-Terms, Modified Henderson-Pabis and Weibull models. In addition, two new models, referred to as 'Proposed' models 1 and 2, were used to simulate this process. According to the statistical tests applied, the models that best fitted the experimental data were Modified Henderson-Pabis, Weibull and Proposed model 2, respectively. Bifactorial analysis of variance ANOVA showed that Diet A (fishmeal 44%, spirulin 9%, fish oil 1% and cornstarch 36%) presented the highest diffusion coefficient values, which were favored by the temperature increase in the drying process.

Phenolic content and antioxidant capacity in organically and conventionally grown eggplant (Solanum melongena) fruits following thermal processing

AbstractThermal processing and production practices used in vegetables can cause changes in their phytochemical contents. Eggplant is characterized by its high antioxidant content. The objective of this work was to determine levels of anthocyanins, polyphenols, and flavonoids and antioxidant capacity in organically and conventionally grown eggplant prepared fresh or subjected to one of three thermal preparation methods: boiling, baking or steaming. The soluble and hydrolyzable polyphenols and flavonoids content were quantified by Folin-Ciocalteu and Aluminum chloride methods, respectively. Anthocyanins were quantified according to the pH differential method. Antioxidant capacity was determined by DPPH and ORAC methods. The results showed differences between organic and conventional eggplant for some variables although cultivation method did not have a consistent effect. Hydrolysable polyphenol content was greater, and soluble and hydrolysable antioxidant capacities were higher in organically grown eggplant, while anthocyanin content was greater in conventionally grown eggplant. Fresh eggplant produced under conventional cultivation had a much greater content of anthocyanins compared to that of other cultivation method-thermal treatment combination. In general, steamed eggplant contained higher total polyphenol and flavonoid levels as well as greater antioxidant capacity. Steamed eggplant from both conventional and organic systems also had high amounts of anthocyanins compared to other thermal treatments.

Informe de seguimiento abril 17 de 2009 Construcción Troncales de Transmilenio Fase III

Gestión del conocimiento

Graffiti, memory and contested space : mnemonic initiatives following trauma and/or repression in Buenos Aires, Argentina

Graffiti, Memory and Contested Space: Mnemonic Initiatives Following Periods of Trauma and/or Repression in Buenos Aires, Argentina This thesis concerns the popular articulation ofmemory following periods or incidents of trauma in Argentina. I am interested in how groups lay claim to various public spaces in the city and how they convert these spaces into mnemonic battlegrounds. In considering these spaces of trauma and places of memory, I am primarily interested in how graffiti writing (stencils, spray-paint, signatures, etchings, wall-paintings, murals and installations) is used to make these spaces transmit particular memories that impugn official versions of the past. This thesis draws on literatures focused on popular/public memory. Scholars argue that memory is socially constructed and thus actively contested. Marginal initiatives such as graffiti writing challenge the memory projects of the state as well as state projects that are perceived by citizens to be 'inadequate,' 'inappropriate,' and/or as promoting the erasure of memory. Many of these initiatives are a reaction to the proreconciliation and pro-oblivion strategies of previous governments. I outline that the history of silences and impunity, and a longstanding emphasis on reconciliation at the expense of truth and justice has created an environment of vulnerable memory in Argentina. Popular memory entrepreneurs react by aggressively articulating their memories in time and in space. As a result of this intense memory work, the built landscape in Buenos Aires is dotted with mnemonic initiatives that aim to contradict or subvert officially sanctioned memories. I also suggest that memory workers in Argentina persistently and carefially use the sites of trauma as well as key public spaces to ensure official as well as popular audiences . The data for this project was collected in five spaces in Buenos Aires, the Plaza de Mayo, Plaza Congreso, La Republica Cromanon nightclub, Avellaneda Train Station and El Olimpo, a former detention centre from the military dictatorship.

Argyros Forum

Exterior photograph of the Argyros Forum, Chapman University, Orange, California, showing plaza area and steps leading to entrance.

Royal Bank of Canada records, 1973-1977

In 1973, the Royal Bank of Canada began construction on a new office in downtown Toronto known as the Royal Bank Plaza. The $100 million construction project consisted of two triangular office towers linked by a glass-enclosed banking hall. In addition to housing the Royal Bank of Canada’s Ontario headquarters, the Plaza included a two-level shopping concourse with restaurants and boutiques, as well as office space available for lease. The Plaza officially opened on March 10, 1977.

Menores trabajadores en situación de calle estudio descriptivo del fenómeno en el área metropolitana de Monterrey, N.L. [por] Gerardo Antonio Rodríguez Hernández

Tesis (Maestría en Psicología Social) U.A.N.L.