1,354,230 research outputs found

    Zróżnicowanie i przemiany naturalnej i półnaturalnej roślinności kuesty górnojurajskiej oraz związanej z nią flory

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    Upper Jurassic Cuesta is a specific landform – a ridge that defines the border between the Silesian Upland and the Kraków-Częstochowa Upland. Its characteristic feature is a large diversity of environmental conditions, mainly due to its geological structure and geographical extent. The plant cover of this area has not been studied so far, only fragments of this area have been surveyed (Szczypek, Wika 1995, Babczyńska-Sendek, Barć 2009, Babczyńska-Sendek et. al 2014; Babczyńska-Sendek et. al 2015). Due to the specific environmental features of this ridge, a large diversity of flora and vegetation was expected, thus detailed phytosociological and floristic studies were undertaken. A total of 263 phytosociological relevés were performed and 201 floristic inventories were carried out. Moreover, 73 soil samples were collected and analyzed. The classification of phytosociological data set was made using the TWINSPAN analysis. Detrended correspondence analysis (DCA) was used in order to identify the key environmental variable influencing the diversity of vegetation. The canonical correspondence analysis (CCA) was used to determine the relationship between vegetation and soil properties. The vegetation was analyzed in terms of phytocoenotic and functional diversity, as well as in terms of occurring disturbances. The Z Disturbance Index (Kącki 2012) was used for this analysis. Floristic diversity was investigated in the 16 designated research sections, and the synthesis of the data was made in relation to three main parts of the studied area (northern, central and southern). In the studied area 23 vegetation units were identified (communities and associations). The largest share in the vegetation cover were Molinio-Arrhenatheretea meadows communities (31% of all phytocoenoses studied), Festuco-Brometea grasslands (23%) and Rhamno-Prunetea shrubs (18%). The most common plant community in this area was Pruno-Crataegetum (16%). The vegetation diversity was reflected in the diversification of its functional structure. The most important functional traits, which distinguish studied plant communities, were selected. For forest vegetation they were among others: SLA, seed mass and share of competitors; and for non-forest vegetation, among others: share of species with different life strategies, plant height, type of reproduction and seed mass. It was shown that the studied environmental variables explain 24% of variation of the cuesta vegetation. The main vegetation changes indicators of the studied area are: share of plants with a competitive strategy; share of low (less than 30 cm), erosulate and semi-rosette species; and small seeds plants. A total of 682 vascular plant species were found in the area of Upper Jurassic cuesta. The vast majority are native plants. The floristically richest is ‘Włodowice’ research sections, where 357 species of vascular plants were found, which constitutes 51% of the entire flora of this area. The core of flora in particular parts of the cuesta is similar, significant differences between them were demonstrated in the case of the participation of the most valuable elements of flora and species belonging to various sociological and ecological groups. The most valuable elements of the flora of this area were among others: 1 species from the Polish Red Book of Plants: Orobanche bartlingii, 29 species of the Polish red list of ferns and flower plants, 135 threatened species of the Silesian Province and 46 species covered by legal protection. Two species (Silaum silaus and Carex michelii) reach the limit of their natural range in this area. Five natural habitats of European importance were identified in the studied area. Based on the research findings, the most valuable fragments of vegetation were identified and protective recommendations were specified

    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

    Screening for gestational diabetes mellitus: one step versus two step approach. A meta-analysis of randomized trials

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    Objective: Worldwide controversy exists regarding the best approach and criteria for gestational diabetes mellitus (GDM) screening and diagnosis. The aim of this systematic review and meta-analysis of randomized trials was to assess the incidence of maternal and neonatal outcomes comparing the one step with the two step approach for the diagnosis of GDM. Methods: Electronic databases were searched from their inception until June 2018. We included all the randomized trials comparing the one step versus the two step method for screening and diagnosis of GDM. The primary outcome was the incidence of large for gestational age (LGA), defined as birth weight >90th percentile. Meta-analysis was performed using the random effects model of DerSimonian and Laird, to produce summary treatment effects in terms of relative risk (RR) with 95% confidence interval (CI). Results: Four randomized clinical trials (RCTs) (n = 2582 participants) were identified as relevant and included in the meta-analysis. Women screened with the one step approach had a significantly lower risk of adverse perinatal outcomes, including LGA (RR 0.46, 95% CI 0.25–0.83), admission to neonatal intensive care unit (NICU) (RR 0.49, 95% CI 0.29–0.84) and neonatal hypoglycemia (RR 0.52, 95% CI 0.28–0.95), compared to those randomized to the screening with the two step approach. The one step approach was also associated with lower mean birth weight (mean difference −112.91 grams, 95% CI −190.48 to −35.33). No significant difference in the incidence of GDM was found comparing the one step versus the two step approach (8.3 versus 4.4%; RR 1.60, 95% CI 0.93–2.75). Conclusions: This study provides high quality evidence that the diagnosis of GDM by the one step approach is associated with better perinatal outcomes, including lower incidences of LGA, NICU admission and neonatal hypoglycemia, compared to the two step approach. Based on these findings, we recommend screening of GDM using the one-step approach

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Gen Y now: millennials and the evolution of leadership

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    Strategies for managing the real Generation Y A new generation of workers is forcing employers to rethink the workplace. Generation Y, or Millennials, bring new ideas, innovation, and energy as they enter the workforce AND their expectations and demands are unique. In Gen Y Now, top team leadership gurus Buddy Hobart and Herb Sendek explore all the myths about this up and coming generation and show you how Millennials can be your most creative, motivated, and loyal employees. This book goes from demographic research to concrete practice, explaining that Generation Y is more than we've been led to believe. They value authenticity, flexibility, and recognition. Using the strategies in Gen Y Now, you can hire and retain these demanding workers, and the payoffs could be huge. Keep up with current trends and technologies to move your organization into the future Attract the best young talent in preparation for the mass retirement of Baby Boomers and Gen X Understand how demographic trends impact the way your intergenerational teams think Inspire motivation in Millennial employees, reducing dissatisfaction and turnover costs There are 80 million Millennials, and they are transforming the modern workforce. Your organization stands to gain from Gen Y employee engagement-if you know how to achieve it. Gen Y Now contains the leadership strategies you need to manage and motivate the Millennial generation

    Author, publisher and bookseller : a tripartite synergy in Nigerian book industry

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    This work is about the roles of Author, Publisher and Bookseller in Book development in Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after which it proceeded by defining who an author, a publisher, and a bookseller is and expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in the emerging Information Society. Furthermore, the various constraints to book development were identified while the paper advised on how the Book Industry can be further promoted in Nigeria. However, the paper concluded and made recommendations on how the Book sector can help in enhancing scholarship in the country

    The Thursday Murder Club: Launching a megabrand author - a publishing case study

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    In 2020, the Christmas book charts in the UK made headlines: Barack Obama’s eagerly awaited autobiography, The Promised Land, was beaten to the top spot by The Thursday Murder Club by Richard Osman, a debut cosy crime novel set in a retirement village. Not only did Osman’s book beat the former US president’s expected bestseller, it also broke records, becoming the fastest-selling debut crime novel of all time. Although Osman has a certain level of fame in the UK from his TV appearances on shows such as Pointless, his celebrity status does not entirely explain the novel’s huge sales. This article tracks the acquisition, publication, and promotion journey of The Thursday Murder Club in order to understand the industry and cultural context of its success and to interrogate the role of celebrity in the creation of author brands. The findings suggest that the unexpected scale of the success of the book owed to a number of factors, including in-depth editing by the novel’s agent, editor, and author to tighten up the plot, an extensive and strategic promotional campaign, the pandemic (which drove interest in the book’s genre and themes), and the quality of the writing. We find that the book’s success was accentuated by Osman’s celebrity status rather than being entirely reliant on it. This research adds to the growing scholarship on celebrity authorship by means of an in-depth case study and provides insight into the processes behind publishing a ‘celebrity’ book and launching a megabrand author

    Author Under Sail The Imagination of Jack London, 1893-1902

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    In Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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