1,720,971 research outputs found

    Fungal symbioses in bryophytes: New insights in the Twenty First Century

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    Pressel, Silvia, Bidartondo, Martin I., Ligrone, Roberto, Duckett, Jeffrey G. (2010): Fungal symbioses in bryophytes: New insights in the Twenty First Century. Phytotaxa 9: 238-253, DOI: 10.11646/phytotaxa.9.1.1

    FIGURE 3. Rhizoidal ascomycete associations. A-C. Scanning electron micrographs. D. Light micrograph. E-G. Transmission electron micrographs. A in Fungal symbioses in bryophytes: New insights in the Twenty First Century

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    FIGURE 3. Rhizoidal ascomycete associations. A-C. Scanning electron micrographs. D. Light micrograph. E-G. Transmission electron micrographs. A. Swollen rhizoid tip in Mylia anomala. B. Swollen rhizoid tip in Cephalozia lunulifolia (Dumort.) Dumort.. C, D. Branched and septate tips of infected rhizoids in Pachyschistochila splachnophylla J.J.Engel & R.M.Schust.. Note the much smaller rhizoids in Cephalozia compared with the other two genera. E. Rhizoid tip of Calypogeia muelleriana (Schiffn.) Müll. Frib. packed with hyphae. F. Detail of simple septum (arrowed) with Woronin bodies (w). G. Rhizoid base in Cephalozia connivens (Dicks) Lindb.. Note the failure of the hyphae to penetrate the host walls. Scale bars = (A-D) 50 µm; (E, G) 5 µm; (F) 1 µm.Published as part of Pressel, Silvia, Bidartondo, Martin I., Ligrone, Roberto & Duckett, Jeffrey G., 2010, Fungal symbioses in bryophytes: New insights in the Twenty First Century, pp. 238-253 in Phytotaxa 9 on page 243, DOI: 10.11646/phytotaxa.9.1.13, http://zenodo.org/record/489536

    SUstaiNability: A science communication website on environmental research

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    Social networks enable anyone to publish potentially boundless amounts of information. However, such information is also highly prone to creating and/or diffusing mistakes and misunderstandings in scientific issues. In 2013 we produced a website (www.sunability.unina2.it) reporting on some research outputs from the University of Campania Luigi Vanvitelli (formerly the Second University of Naples, SUN), and shared it on Facebook and Twitter to analyse the effectiveness of these platforms in scientific dissemination. The study results suggest that (i) a regular update of the website stimulates the user's interest, (ii) Campania's citizens are more concerned with pollution problems than natural hazards, and (iii) direct involvement of researchers effectively enhances web-mediated scientific dissemination

    FIGURE 5 in Fungal symbioses in bryophytes: New insights in the Twenty First Century

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    FIGURE 5. Basidiomycetes in Jungermanniales. A. Scanning electron micrograph. B-F. Transmission electron micrographs. A. Saccogyna viticulosa (L.) Dumort.; branched rhizoid tip associated with numerous hyphae. B. Scapania cuspiduligera (Nees) Müll. Frib.; infected and uninfected cells. Note the outgrowths of host wall (arrowed) preventing the ingress of hyphae into the uninfected cell. C. Dolipore septum (d) with imperforate parenthosome (p), typical of the genera Sebacina and Tulasnella. D-F. Southbya nigrella (De Not.) Henriq.. D. Infected cells packed with hyphae lying next to an uninfected cell containing numerous oil bodies (ob). E. Newly infected cell showing degenerating oil bodies (dob). F. Older infected cell. Note that the hyphae outlive the host. Scale bars = (A) 50 µm; (B, D-F) 5 µm; (C) 1m.Published as part of Pressel, Silvia, Bidartondo, Martin I., Ligrone, Roberto & Duckett, Jeffrey G., 2010, Fungal symbioses in bryophytes: New insights in the Twenty First Century, pp. 238-253 in Phytotaxa 9 on page 248, DOI: 10.11646/phytotaxa.9.1.13, http://zenodo.org/record/489536

    Interazioni Piante-Ambiente

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    Cap. 1 – Interazioni piante-ambiente in un contesto filogenetico – Roberto Ligrone, Seconda Università di Napoli. Cap. 2 – Interazioni delle piante con i principali fattori di stress abiotico – Leonardo Bruno, Università della Calabria - Luigi Sanità di Toppi, Università di Pisa. Cap. 3 – Principali inquinanti ambientali e loro impatto sulle piante – Luigi Sanità di Toppi, Università di Pisa. Cap. 4 – Il metabolismo secondario nelle interazioni piante-ambiente – Renato Bruni, Università di Parma. Cap. 5 – Interazioni biotiche delle piante – Guido Lingua, Università del Piemonte Orientale “A. Avogadro”. Cap. 6 – I licheni come “biomonitor” dell’inquinamento atmosferico – Luca Paoli, Università di Siena - Alessio Ferrarese, Associazione “Vivere i Parchi” di Candia Canavese (TO) - Luigi Sanità di Toppi, Università di Pisa

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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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