The Golden Age returns: Virgil's fourth Eclogue in the political panegyric of the Italian courts

E. H. Gombrich and others have analysed the uses made of language and imagery from Virgil's famous fourth Eclogue in panegyrical writing by partisans of the Medici dynasty in Florence. This study examines the appropriation of the theme of the returning Golden Age and related motifs from the fourth Eclogue in other Italian courts during the same period, by supporters of the Visconti and Sforza of Milan, the Gonzaga of Mantua, Leonello d'Este and his successors in Ferrara, and the Bentivoglio of Bologna, among others. The deployment of this Virgilian material in political panegyric is seen to be a central element in the self-definition and self-promotion of dynastic rulers throughout the peninsula.

High-throughput phenotyping (HTP) identifies seedling root traits linked to variation in seed yield and nutrient capture in field-grown oilseed rape (Brassica napusL.)

Background and Aims Root traits can be selected for crop improvement. Techniques such as soil excavations can be used to screen root traits in the field, but are limited to genotypes that are well-adapted to field conditions. The aim of this study was to compare a low-cost, high-throughput root phenotyping (HTP) technique in a controlled environment with field performance, using oilseed rape (OSR; Brassica napus) varieties. Methods Primary root length (PRL), lateral root length and lateral root density (LRD) were measured on 14-d-old seedlings of elite OSR varieties (n = 32) using a ‘pouch and wick’ HTP system (∼40 replicates). Six field experiments were conducted using the same varieties at two UK sites each year for 3 years. Plants were excavated at the 6- to 8-leaf stage for general vigour assessments of roots and shoots in all six experiments, and final seed yield was determined. Leaves were sampled for mineral composition from one of the field experiments. Key Results Seedling PRL in the HTP system correlated with seed yield in four out of six (r = 0·50, 0·50, 0·33, 0·49; P < 0·05) and with emergence in three out of five (r = 0·59, 0·22, 0·49; P < 0·05) field experiments. Seedling LRD correlated positively with leaf concentrations of some minerals, e.g. calcium (r = 0·46; P < 0·01) and zinc (r = 0·58; P < 0·001), but did not correlate with emergence, general early vigour or yield in the field. Conclusions Associations between PRL and field performance are generally related to early vigour. These root traits might therefore be of limited additional selection value, given that vigour can be measured easily on shoots/canopies. In contrast, LRD cannot be assessed easily in the field and, if LRD can improve nutrient uptake, then it may be possible to use HTP systems to screen this trait in both elite and more genetically diverse, non-field-adapted OSR.

XMM-Newton temperature maps for five intermediate redshift clusters of galaxies

We have analyzed XMM-Newton archive data for five clusters of galaxies (redshifts 0.223-0.313) covering a wide range of dynamical states, from relaxed objects to clusters undergoing several mergers. We present here temperature maps of the X-ray gas together with a preliminary interpretation of the formation history of these clusters. (c) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved.

Evidence of chromosome fusion in Gymnotus sylvius Albert & Fernandes-Matoli, 1999 (Teleostei: Gymnotiformes) detected by telomeric probes and R-banding

Gymnotus cf. carapo and Gynznotus sylvius are two fish species inhabiting the Upper Parana River Basin, presenting respectively 2n =54 and 2n = 40 chromosomes. In the present cytogenetic analysis, R-banding and telomere-sequence hybridization were carried out in order to determine the possible relationship between the karyotipes of these two species. Incorporation bands (R-bands) obtained for the two species allowed the identification of chromosome similarities, showing to be an usefull alternative to the G-banding methods, which fail in producing satisfying results in most of analyzed fish species. This approach, associated with the hybridization of telomeric sequences, permited to identify chromosomal rearrangements that could be used as indicators of karyotypic evolution within the group. In the present case, telomeric sequences were detected in the centromeric region of two metacentric chromosome pairs of Gymnotus sylvius. The results obtained after hybridization with the telomere sequences, coupled with the chromosome homeologies detected by R-banding, showed that G. cf carapo and G. sylvius should present a common ancestor, and this may also be corroborated by the similarities found in three chromosome pairs, that seem to have been conserved during the evolution of the two species. Based on the data here presented we propose that G. sylvius may have undergone a recent process of chromosome fusion that resulted in the diminution of its chromosome number.

Comparative chromosomal analyses in species of the genus Pimelodella (Siluriformes, Heptapteridae): occurrence of structural and numerical polymorphisms

Cytogenetic analyses were carried out in five species of Pimelodella from the main sub-basins of Upper Parana River and Paraiba do Sul River. The diploid number ranged from 2n = 46 to 2n = 58 chromosomes, and all populations differed in the karyotype constitution. The presence of supernumerary chromosomes as well as the occurrence of a XX/XY sex chromosome system and heterochromatin polymorphisms were detected. The 18S rDNA FISH confirmed the presence of single NORs and revealed additional sites on supernumerary chromosomes. The number and location of 5S rDNA sites were variable. Aspects related to the karyotypic evolution within the genus are discussed.

Cytogenetic characterization of Metynnis maculatus (Teleostei; Characiformes): the description in Serrasalminae of a small B chromosome bearing inactive NOR-like sequences

Mitotic chromosomes of Metynnis maculatus (KNER 1860) (Teleostei, Characiformes), a fish species that occurs in the Amazon and Parana-Paraguay river basins, were analyzed for the first time by Giemsa and Ag-NOR staining, C-banding and fluorescence in situ hybridization (FISH) with 18S and 5S rDNA sequences. The basic chromosome number of the species is 2n=62 (32M+22SM+4ST+4A) and, in addition to the 62 regular chromosomes, one small acrocentric supernumerary B chromosome was found in part of the specimens analyzed. Four active NORs were present, and constitutive heterochromatin blocks were found in the pericentromeric region of several chromosomes. A heterochromatic block was also present in the interstitial portion of the submetacentric NOR-bearing pair and the B chromosome was entirely heterochromatic. FISH using an 18S rDNA probe confirmed the results obtained with AgNO(3) staining, and an additional signal was also present on the B chromosomes. 5S rDNA sequences mapped only to the largest acrocentric pair. This is the first description of supernumerary B chromosomes in Serrasalminae, and this karyotype characterization may be useful in further studies about chromosome evolution in this fish group.

Nonrecurrent MECP2 duplications mediated by genomic architecture-driven DNA breaks and break-induced replication repair

Recurrent submicroscopic genomic copy number changes are the result of nonallelic homologous recombination (NAHR). Nonrecurrent aberrations, however, can result from different nonexclusive recombination-repair mechanisms. We previously described small microduplications at Xq28 containing MECP2 in four male patients with a severe neurological phenotype. Here, we report on the fine-mapping and breakpoint analysis of 16 unique microduplications. The size of the overlapping copy number changes varies between 0.3 and 2.3 Mb, and FISH analysis on three patients demonstrated a tandem orientation. Although eight of the 32 breakpoint regions coincide with low-copy repeats, none of the duplications are the result of NAHR. Bioinformatics analysis of the breakpoint regions demonstrated a 2.5-fold higher frequency of Alu interspersed repeats as compared with control regions, as well as a very high GC content (53%). Unexpectedly, we obtained the junction in only one patient by long-range PCR, which revealed nonhomologous end joining as the mechanism. Breakpoint analysis in two other patients by inverse PCR and subsequent array comparative genomic hybridization analysis demonstrated the presence of a second duplicated region more telomeric at Xq28, of which one copy was inserted in between the duplicated MECP2 regions. These data suggest a two-step mechanism in which part of Xq28 is first inserted near the MECP2 locus, followed by breakage-induced replication with strand invasion of the normal sister chromatid. Our results indicate that the mechanism by which copy number changes occur in regions with a complex genomic architecture can yield complex rearrangements.

Evidensbaserade omvårdnadsåtgärder vid trycksår : En systematisk litteraturstudie

I föreliggande systematiska litteraturstudie var syftet att samla information om och belysa sjuksköterskans evidensbaserade omvårdnadsåtgärder för att förebygga och bedöma trycksår. Artiklar söktes via Högskolan Dalarnas bibliotek och sökmotorn Electronic Library Information Navigator (ELIN). Sökorden pressure, ulcer och nurs* användes. De vetenskapliga artiklarna (n= 15) kvalitetsbedömdes enligt granskningsmallar som bestod av 28 kvalitetskriterier. Därefter evidensgraderades artiklarna. Resultatet i föreliggande studie visade att sjuksköterskan använde sig av tre evidensbaserade omvårdnadsåtgärder i omsorgen om patienter med risk för trycksår. Den första omvårdnadsåtgärden omfattade tryckavlastande omvårdnadsåtgärder, vilka insatser befanns vila på stark vetenskaplig grund. Den andra omvårdnadsåtgärden inbegrep användning av riskbedömningsinstrument och den tredje bestod av klinisk bedömning som båda befanns vila på måttlig vetenskapligt underlag. I resultatet framkom att riskbedömningsinstrument hjälpte sjuksköterskan att reducera uppkomsten av trycksår och därmed minskade ett onödigt lidande för patienten. Resultatet diskuterades utifrån Florence Nightingales omvårdnadsteori, där miljön var en av grundstenarna i omsorgen och att sjuksköterskan hade ansvaret för att anpassa miljön efter patientens behov. Medvetenheten om detta tillsammans med de evidensbaserade omvårdnadsåtgärderna som framkom i föreliggande studie kunde minska risken för trycksår hos patienter och i förlängningen reducera sjukvårds- kostnaderna.

Varför gör jag det här? : En studie om kvalitet, likvärdighet och ansvar i en skola

Denna undersökning syftar till att med hjälp av intervjuer undersöka ett antal pedagogers uppfattning av kvalitet, likvärdighet och ansvar i en skola samt hur skolans arbetssätt påverkar kvalitet och likvärdighet för eleverna. De parametrar som finns definierade av skolans ledning som strategiska mål, framgångsfaktorer och nyckelmått på pedagogisk utveckling återkommer inte spontant hos de intervjuade pedagogerna, det räcker inte att tala om kvalitet för att kunna mäta och utveckla den. Den huvudsakliga slutsats som kan dras av undersökningen är att det saknas en gemensam syn på kvalitet och vad kvalitet konkret innebär i det pedagogiska arbetet och det pedagogiska ledarskapet för att skapa och säkerställa kvalitet och likvärdighet inom skolans alla funktioner; kvalificerande, socialiserande och subjektifierande.

Teacher’s leadership in web-based language courses in Dalarna University, Sweden

The purpose of this presentation is to discuss how teacher’s leadership can be used as a teaching method in web based language education. The environments that offer online courses provide a wide field for discussion on the contact between teacher and student. My intention is to contribute to the debate on teacher leadership in online courses. In my earlier studies on leadership, I have explored how some religious leaders affected different social movements in Brazil during the military dictatorship (1964-1985). Pruth (2004) by examining the three kinds of legitimacy described by Max Weber I aimed at seeing and analyzing how religious leaders used different teaching methods to explain their messages to ordinary citizens. Thus my research showed how educational leadership is a way to get people to reach their goals. I became interested in the subject teacher’s leadership whenI participated in a survey of the teaching methods of language courses in Dalarna University which is funded by the NGL Center of Dalarna University. In  this project, we have made interviews with the teachers, undertaken the course plans (in the language department at Dalarna University) and categorized the learning outcomes. A questionnaire was constructed based on the learning outcomes and then either sent out remotely to teachers or completed face to face through interviews. The answers provided to the questionnaires enabled the  project to identify many differences in how language teachers interact with their students but  also, the way of giving feedback, motivating and helping students, types of class activities and materials used. This made me aware of how teachers use their leadership or not in their teaching. My focus is to look at the relationship between teachers and students as an important part of the development and quality of online courses. The teacher's performance on campus is different from online courses. I want to understand how the contact between teachers and students in online courses develop and look at how students can make use of this contact and what influence the teacher's leadership has on the ability for the students to achieve the goals of their course

Interview with Jane West

Abstract: In her July 15, 2013 interview with Martha Manning, Jane West details her time at Winthrop as a Biology major in the 1960s. Briefly, West discusses student life and Winthrop traditions, but she provides insight into her life student teaching at Florence High School. Additionally, West includes her experience in required courses like English and Math, as well as experiments conducted in her Biology courses. West concludes the interview with her overall perceptions of Winthrop. This interview was conducted for inclusion into the Louise Pettus Archives and Special Collections Oral History Program.

A influência da cidadania empresarial na imagem corporativa

Disponível na pintegra no link: http://portalrevistas.ucb.br/index.php/esf/article/viewFile/2937/2169

O ABC e a reorganização com base em processos

Descreve o sistema ABC de custos, tendo como pano de fundo a nova realidade empresarial, e salienta como este sistema de custeio vem ao encontro das atuais necessidades das empresas. Enfatiza a análise das atividades realizada pelo ABC e sua possibilidade de gerar melhoras operacionais. Expõe a seguir algumas das novas ferramentas de reorganização, especificamente a reengenharia e a organização horizontal, que visam realizar modificações a nível de processos, de maneira a contribuir para o alcance de melhores índices de performance. Realiza uma análise de complementaridade entre o ABC e estas metodologias de reorganização, com base em seu enfoque comum em processos. Como conclusão, uma pesquisa exploratória tenta verificar, se na prática, existe relacionamento entre o sistema de custos ABC e as reorganizações com base em processos, em companhias que implantaram este sistema de custeio.

Experiências profissionais de filhas herdeiras em empresas familiares brasileiras

Este trabalho observa a experiência de filhas herdeiras em cargos gerenciais de empresas familiares brasileiras, usando o modelo tridimensional de desenvolvimento da empresa familiar de Gersick & aI. (1997) e adotando gênero como referencial de an álise. Foram realizadas entrevistas em profundidade com doze teriosa análise de conteúdo dos discursos. Tendo em vista as trajetórias e as estratégias usadas pelas filhas para alterar sua visibilidade no sistema da empresa familiar, abordam-se, aqui, as contradições entre os papéis de profissional e o de herdeira, assim como a dificuldade que elas enfrentam para conciliar o anseio por igualdade entre os gêneros com a busca de identidade no sistema, Ressalta-se ainda a caracteristica conservadora do modo de inserção profissional das filhas e como essa forma pode afetar a continuidade da empresa familiar.