983 resultados para Post emergence
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Three successive field experiments (2000/01-2002/03) assessed the effect of wheat cultivar (Consort.. Hereward and Shamrock) and fungicide (epoxiconazole and azoxystrobin) applied at and after flag leaf emergence on the nitrogen in the above-ground crop (Total N) and grain (Grain N), net nitrogen remobilization from non-grain tissues (Remobilized N). grain dry matter (Grain Dill), and nitrogen utilization efficiency (NUtE(g) = Grain DM/Total N). Ordinary logistic curves were fitted to the accumulation of Grain N, Grain DM and Remobilized N against thermal time after anthesis and used to simultaneously derive fits for Total N and NUtE(g). When disease was controlled, Consort achieved the greatest Grain DM, Total N, Grain N and NUtEg; in each case due mostly to longer durations, rather than quicker rates, of accumulation. Fungicide application increased final Grain Dill.. Grant N, Total N and Remobilized N, also mostly through effects on duration rather than rate of accumulation. Completely senesced leaf laminas retained less nitrogen when fungicide had been applied compared with leaf laminas previously infected severely with brown rust (Puccinia recondita) and Septoria tritici, or with just S. tritici. Late movement of nitrogen out of fungicide-treated laminas contributed to extended duration of both nitrogen remobilization and grain N filling, and meant that increases in NUtE(g) could occur without simultaneous reductions in grain N concentration.
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The findings of the Barker review, which examined the reasons for the undersupply of UK housing, have important implications for the devolved constituents of the UK, including Scotland. This paper traces the emergence of the brownfi eld regeneration policy agenda across the UK and examines how the Barker review connects with this brownfi eld policy focus. The paper compares housing and brownfi eld policies and practices in England and Scotland, places them in an international context and elicits wider lessons for devolved governance in relation to housing policy, in terms of ‘centrist–local’ tensions. Estimates based on published data suggest that Barker’s emphasis on increased housing supply cannot easily be reconciled with the current emphasis on brownfi eld development and is likely to require a return to greenfield development in both countries.
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Objective: The effect of a single 5 day enrofloxacin treatment on the native Campylobacter coli population in conventionally weaned 5-week-old pigs was investigated. Materials: Twelve pigs were split into two groups of six: one group was treated with a therapeutic dose (15 mg/pig/day) of enrofloxacin and the other remained untreated to act as the control. Campylobacter coli were isolated from faecal samples and tested for ciprofloxacin resistance by measuring MIC values. Mutations in the quinolone resistance-determining region (QRDR) of the gyrA gene of resistant isolates were identified by sequencing and denaturing HPLC. Levels of enrofloxacin and its primary metabolite ciprofloxacin in the pig faeces were also measured by HPLC. Results: No quinolone-resistant C. coli (n = 867) were detected in any of the pigs prior to treatment, indicating <0.1% resistance in the group. Resistant C. coli were isolated from pigs for up to 35 days after treatment with a therapeutic dose. These resistant C. coli had MIC values of 128 mg/L and 8-16 mg/L for nalidixic acid and ciprofloxacin, respectively, and the same single point mutation causing a Thr-86 to Ile substitution in the QRDR was identified in each. The concentration of enrofloxacin in the pig faeces was 2-4 mug/g faeces for the duration of the 5 day therapeutic treatment and was detected up to 10 days post-treatment. Ciprofloxacin was also measured and peaked at 0.6 mug/g faeces in the treated group. Conclusion: This study provides evidence that a single course of enrofloxacin treatment contributes directly to the emergence and persistence of fluoroquinolone resistance in C. coli.
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Aim: To assess the effect of the growth promoter avilamycin on emergence and persistence of resistance in enteric bacteria in the pig. Methods and Results: Pigs ( treated with avilamycin for 3 months and controls) were challenged with multiresistant Salmonella Typhimurium DT104 and faecal counts were performed for enterococci, Escherichia coli, S. Typhimurium and Campylobacter ( before, during and 5 weeks post-treatment). Representative isolates were tested for antibiotic resistance and for the presence of resistance genes. Avilamycin-resistant Enterococci faecalis (speciated by PCR) were isolated from the treated pigs and continued to be detected for the first week after treatment had ceased. The avilamycin- resistance gene was characterized by PCR as the emtA gene and speciation by PCR. MIC profiling confirmed that more than one strain of Ent. faecalis carried this gene. There was no evidence of increased antimicrobial resistance in the E. coli, Salmonella and Campylobacter populations, although there was a higher incidence of tetB positive E. coli in the treated pigs than the controls. Conclusion: Although avilamycin selects for resistance in the native enterococci population of the pig, no resistant isolates were detected beyond 1 week post-treatment. This suggests that resistant isolates were unable to persist once selective pressure was removed and were out-competed by the sensitive microflora. Significance and Impact of the Study: Our data suggest the risk of resistant isolates becoming carcass contaminants and infecting humans could be minimized by introducing a withdrawal period after using avilamycin and prior to slaughter.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The uses of Information and Communication Technologies (ICT) and Web environments for creation, treatment and availability of information have supported the emergence of new social-cultural patterns represented by convergences in textual, image and audio languages. This paper describes and analyzes the National Archives Experience Digital Vaults as a digital publishing web environment and as a cultural heritage. It is a complex system - synthesizer of information design options at information setting, provides new aesthetic aspects, but specially enlarges the cognition of the subjects who interact with the environment. It also enlarges the institutional spaces that guard the collective memory beyond its role of keeping the physical patrimony collected there. Digital Vaults lies as a mix of guide and interactive catalogue to be dealt in a ludic way. The publishing design of the information held on the Archives is meant to facilitate access to knowledge. The documents are organized in a dynamic and not chronological way. They are not divided in fonds or distinct categories, but in controlled interaction of documents previously indexed and linked by the software. The software creates information design and view of documental content that can be considered a new paradigm in Information Science and are part of post-custodial regime, independent from physical spaces and institutions. Information professionals must be prepared to understand and work with the paradigmatic changes described and represented by the new hybrid digital environments; hence the importance of this paper. Cyberspace interactivity between user and the content provided by the environment design provide cooperation, collaboration and sharing knowledge actions, all features of networks, transforming culture globally. © 2011 - IOS Press and the authors. All rights reserved.
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The uses of Information and Communication Technologies (ICT) and Web environments for creation, treatment and availability of information have supported the emergence of new social-cultural patterns represented by convergences in textual, image and audio languages. This paper describes and analyzes the National Archives Experience Digital Vaults as a digital publishing web environment and as a cultural heritage. It is a complex system - synthesizer of information design options at information setting, provides new aesthetic aspects, but specially enlarges the cognition of the subjects who interact with the environment. It also enlarges the institutional spaces that guard the collective memory beyond its role of keeping the physical patrimony collected there. Digital Vaults lies as a mix of guide and interactive catalogue to be dealt in a ludic way. The publishing design of the information held on the Archives is meant to facilitate access to knowledge. The documents are organized in a dynamic and not chronological way. They are not divided in fonds or distinct categories, but in controlled interaction of documents previously indexed and linked by the software. The software creates information design and view of documental content that can be considered a new paradigm in Information Science and are part of post-custodial regime, independent from physical spaces and institutions. Information professionals must be prepared to understand and work with the paradigmatic changes described and represented by the new hybrid digital environments; hence the importance of this paper. Cyberspace interactivity between user and the content provided by the environment design provide cooperation, collaboration and sharing knowledge actions, all features of networks, transforming culture globally.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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The uses of Information and Communication Technologies (ICT) and Web environments for creation, treatment and availability of information have supported the emergence of new social-cultural patterns represented by convergences in textual, image and audio languages. This paper describes and analyzes the National Archives Experience Digital Vaults as a digital publishing web environment and as a cultural heritage. It is a complex system - synthesizer of information design options at information setting, provides new aesthetic aspects, but specially enlarges the cognition of the subjects who interact with the environment. It also enlarges the institutional spaces that guard the collective memory beyond its role of keeping the physical patrimony collected there. Digital Vaults lies as a mix of guide and interactive catalogue to be dealt in a ludic way. The publishing design of the information held on the Archives is meant to facilitate access to knowledge. The documents are organized in a dynamic and not chronological way. They are not divided in fonds or distinct categories, but in controlled interaction of documents previously indexed and linked by the software. The software creates information design and view of documental content that can be considered a new paradigm in Information Science and are part of post-custodial regime, independent from physical spaces and institutions. Information professionals must be prepared to understand and work with the paradigmatic changes described and represented by the new hybrid digital environments; hence the importance of this paper. Cyberspace interactivity between user and the content provided by the environment design provide cooperation, collaboration and sharing knowledge actions, all features of networks, transforming culture globally.
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L'affermarsi della teoria della « imaginative geography » di Edward Saïd (Orientalism, 1978), nell'arco degli ultimi trent'anni, ha imposto un orientamento prettamente sociopolitico, gramsciano e foucaultiano alla critica del testo, proponendo un'unica soluzione interpretativa per un corpus eterogeneo di testi (scientifici e artistici, antichi e moderni) accomunati dal fatto di « rappresentare l'Oriente ». La costruzione europea dello spazio orientale, dice Saïd, non rappresenta solo un misconoscimento dell'Altro, ma una sua rappresentazione tendenziosa e finalizzata a sostenere la macchina dell'imperialismo occidentale. In particolare, la rappresentazione « femminilizzata » della geografia orientale (come luogo dell'exploit del maschio bianco) preparebbe e accompagnerebbe l'impresa di assoggettamento politico e di sfruttamento economico dei paesi ad Est dell'Europa. Se Orientalism ha conosciuto fortune alterne dall'anno della sua apparizione, negli ultimi anni una vera e propria corrente anti-saidiana ha preso forza, soprattutto in ambito francese. Attraverso l'analisi di circa trenta opere francesi, belga, inglesi e italiane del Novecento, questa tesi cerca di visualizzare i limiti teorici della prospettiva saidiana rivolgendosi a un esame della rappresentazione dello spazio urbano indiano nella letteratura europea contemporanea. Nello specifico, uno studio delle nuove strutture e dei nuovi modelli della femminilizzazione dello spazio orientale indiano cercherà di completare – superandolo in direzione di un « post-orientalismo » – il riduzionismo della prospettiva saidiana.
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Ante el embate del particularismo, la emergencia de los nacionalismos reaccionarios en el mundo contemporáneo, y la difusión del comunitarismo en la filosofía política, es necesario que la teoría política asuma un rol crítico ante estos procesos teóricos y políticos. Esa es la tarea que desde el postfundacionalismo se plantean la obra de Jean-Luc Nancy, Roberto Espósito y Ernesto Laclau. En este trabajo intentamos escrutar la visión que estos autores postulan sobre la comunidad. Se verá que, mas allá de sus distintas estrategias argumentativas y de perspectiva, se desarrolla en estos tres autores una idea de la comunidad fundamentalmente anti-esencialista, una comunidad improductiva (Nancy), estructurada en torno a una nada (Espósito) y cuya única manera de reconstitución es a través de la articulación política (Laclau)
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Ante el embate del particularismo, la emergencia de los nacionalismos reaccionarios en el mundo contemporáneo, y la difusión del comunitarismo en la filosofía política, es necesario que la teoría política asuma un rol crítico ante estos procesos teóricos y políticos. Esa es la tarea que desde el postfundacionalismo se plantean la obra de Jean-Luc Nancy, Roberto Espósito y Ernesto Laclau. En este trabajo intentamos escrutar la visión que estos autores postulan sobre la comunidad. Se verá que, mas allá de sus distintas estrategias argumentativas y de perspectiva, se desarrolla en estos tres autores una idea de la comunidad fundamentalmente anti-esencialista, una comunidad improductiva (Nancy), estructurada en torno a una nada (Espósito) y cuya única manera de reconstitución es a través de la articulación política (Laclau)
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Ante el embate del particularismo, la emergencia de los nacionalismos reaccionarios en el mundo contemporáneo, y la difusión del comunitarismo en la filosofía política, es necesario que la teoría política asuma un rol crítico ante estos procesos teóricos y políticos. Esa es la tarea que desde el postfundacionalismo se plantean la obra de Jean-Luc Nancy, Roberto Espósito y Ernesto Laclau. En este trabajo intentamos escrutar la visión que estos autores postulan sobre la comunidad. Se verá que, mas allá de sus distintas estrategias argumentativas y de perspectiva, se desarrolla en estos tres autores una idea de la comunidad fundamentalmente anti-esencialista, una comunidad improductiva (Nancy), estructurada en torno a una nada (Espósito) y cuya única manera de reconstitución es a través de la articulación política (Laclau)
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The statements made in recent weeks by Russian officials, and especially President Vladimir Putin, in connection with Moscow’s policy towards Ukraine, may suggest that the emergence of a certain doctrine of Russian foreign and security policy is at hand, especially in relation to the post-Soviet area. Most of the arguments at the core of this doctrine are not new, but recently they have been formulated more openly and in more radical terms. Those arguments concern the role of Russia as the defender of Russian-speaking communities abroad and the guarantor of their rights, as well as specifically understood good neighbourly relations (meaning in fact limited sovereignty) as a precondition that must be met in order for Moscow to recognise the independence and territorial integrity of post-Soviet states. However, the new doctrine also includes arguments which have not been raised before, or have hitherto only been formulated on rare occasions, and which may indicate the future evolution of Russia’s policy. Specifically, this refers to Russia’s use of extralegal categories, such as national interest, truth and justice, to justify its policy, and its recognition of military force as a legitimate instrument to defend its compatriots abroad. This doctrine is effectively an outline of the conceptual foundation for Russian dominance in the post-Soviet area. It offers a justification for the efforts to restore the unity of the ‘Russian nation’ (or more broadly, the Russian-speaking community), within a bloc pursuing close integration (the Eurasian Economic Union), or even within a single state encompassing at least parts of that area. As such, it poses a challenge for the West, which Moscow sees as the main opponent of Russia’s plans to build a new order in Europe (Eurasia) that would undermine the post-Cold War order.
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Five years after the entry into force of the Treaty of Lisbon and at the end of the first mandate of the High Representative of the Union for Foreign Affairs and Security Policy/Vice-President of the European Commission (HR/VP), this analysis provides an in-depth view of the on-going institutional socialisation between Member State Embassies and EU Delegations. Specifically, it focuses on the Member States’ perceptions of the role of EU Delegations. These perceptions can back up or restrain the EU Delegations in fulfilling their mandate. More precisely, the paper examines to what extent the socialisation between EU Delegations and EU Member State Embassies helps the Delegations to fulfil their mandate in bilateral diplomacy. It argues that EU Delegations are still under dynamic processes of institutional socialisation with the Member States’ Embassies which increasingly accept and expect EU Delegations’ actions. The post-Lisbon context of EU Diplomacy is consolidating a primus inter pares role of Delegations being central hubs coordinating and implementing EU policies on the spot.