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H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel
No full textDonnet Daniel. H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel. In: L'antiquité classique, Tome 70, 2001. pp. 255-256
H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel VIII
No full textDonnet Daniel. H. Hofmann & M. Zimmerman (Ed.), Groningen Colloquia on the Novel VIII. In: L'antiquité classique, Tome 68, 1999. p. 382
Effects of Drought and Competition by a Ryegrass Sward on the Seedling Growth of a Range of Grassland Species
No full textIn de-intensified grassland where an increased seedling recruitment is seen as a prerequisite to enhance plant species diversity, establishment success of introduced seeds of wildflower species is often poor. Outshading by the existing sward and dry weather spells when seedlings are at an early stage of development are major reasons for a low seedling establishment. The effects of drought and competition by an existing Lolium perenne sward on the growth of seedlings of seven wildflower species were investigated under standardized environmental conditions. Without competition (control), the relative growth rate of the wildflower seedlings varied between 103 (Tragopogon pratensis) and 184 mg g(-1) day(-1) (Leontodon autumnalis). Species differed in the extent of growth reduction by competition. Compared with the control, reduction of seedling dry weight ranged from 45% (Trifolium pratense) up to 88% (Daucus carota). The time range between onset of desiccation and first effects on growth varied between species, with T. pratense showing early and strong growth reduction in contrast to D. carota being least affected. It can be concluded, that those species which maintain a comparatively high growth rate supported by adapted shoot-root allocation are most promising for establishment in grassland as they can exploit profiles of higher resource availability
Species enrichment in an agriculturally improved grassland and its effects on botanical composition, yield and forage quality
No full textIn a field experiment, the effects of different management treatments on the botanical development and productivity of a previously species‐poor, intensively managed, lowland permanent grass sward were investigated over a 4‐year period. Fertilizer inputs were stopped and nine main treatments, based on three pre‐sowing and three post‐sowing cutting regimes, were applied. Half of each treatment plot was oversown with a mixture of forb (wildflower) species and half left unsown. The aims were: (1) to investigate the effect of cutting regimes on the establishment of introduced forb species, (2) to assess the development and dry‐matter (DM) yield potential of these introduced species, and (3) to compare the DM yield and forage quality of swards with and without introduced species. Seedling establishment was recorded until the end of the second year. From the third year onwards, a common twice‐yearly cutting regime was imposed on all treatments, and the development of the introduced species was recorded. The DM yield of the nine oversown sub‐treatments was compared with the sub‐treatments not oversown. Frequent cutting after oversowing resulted in the greatest number of established plants and three times greater harvested DM yield of introduced species, compared with infrequent cutting. Plantago lanceolata and Trifolium pratense were the best performing introduced species. By years 3 and 4, there was proportionately 0·15 and 0·23, respectively, additional herbage DM yield harvested from the oversown treatments compared with unsown treatments, and up to 0·60 more in some treatments. The introduction of forbs increased the crude protein concentration, but decreased the digestibility of the forage
mRNA detection of tumor-rejection genes BAGE, GAGE, and MAGE in peritoneal fluid from patients with ovarian carcinoma as a potential diagnostic tool
No full textBACKGROUND. it has been found that the members of the BAGE, MAGE, and GAGE gene families are expressed almost exclusively in neoplastic tissues. Normal tissues, except testis and placenta, are negative. Therefore, the expression of these genes may serve as a useful diagnostic marker in detecting malignant disease. The involvement of the serous cavities by malignant neoplasms has important therapeutic and prognostic implications. Accordingly, the diagnosis of peritoneal spread of ovarian carcinoma plays an important role for both initial and second-look staging procedures. In some patients, however, a definite diagnosis cannot be established by morphologic or immunocytologic examination alone. Detection of tumor specific gene expression may be a sensitive additional tool in these settings. METHODS. The authors studied the gene expression observed in 44 ascites specimens. Gene expression was evaluated by reverse transcription-polymerase chain reaction analysis and sequencing. RESULTS. Of 44 ascites specimens, the expression of BAGE, MAGE-1, MAGE-3, and GAGE-1/2 was recognized in 17 specimens (63%), 2 specimens (7%), 8 specimens (30%), and 8 specimens (30%) with histologically proven ovarian carcinoma, respectively. Expression of the MAGE and GAGE genes was not observed in patients with nonneoplastic disease, whereas BAGE expression was seen in one patient with cirrhosis. CONCLUSIONS. These findings show that testing for BAGE, GAGE-1/2, MAGE-1, and MAGE-3 transcriptional activity in ascites specimens results in high sensitivity in diagnosing malignant ascites
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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