1,720,958 research outputs found
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Full text linkWe 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
Vegetation development and impact of renaturation measures in two bogs in the Karwendel Nature Park
No full textMoore sind einzigartige Ökosysteme, die von extremen Bedingungen geprägt sind. Sie gelten als saure, nasse, nährstoff- und sauerstoffarme Habitate und nur speziell angepasste Tier- und Pflanzenarten können dort überleben. Durch die Vielfalt an Ökosystem-Dienstleistungen sind sie nicht nur für die Natur, sondern auch für den Menschen von großer Bedeutung. Vor allem, wenn man ihre wichtige Funktion als Kohlenstoffsenken in Zeiten des Klimawandels heranzieht. Dennoch werden diese Ökosysteme weltweit degradiert und sind somit, samt den dort vorkommenden Arten, stark gefährdet. Es gibt jedoch Bestrebungen Moore zu renaturieren und sie wieder zurück zu ihrem natürlichen Zustand zu führen.
Das geschah im Jahr 2005 auch in mehreren Mooren des Naturpark Karwendel in Tirol. Moorflächen wurden eingezäunt, um eine Beweidung zu vermeiden und Entwässerungsgräben wurden mit Hilfe von zahlreichen Holzdämmen verschlossen, um die Wiedervernässung zu ermöglichen. Zwei dieser Moore, das Raberskopf-Moor und das Brettersberg-Mittelleger-Moor, wurden im Zuge dieser Arbeit untersucht. Die Zielsetzung war es, herauszufinden wie sich die Vegetation in diesen Mooren seit den Renaturierungsmaßnahmen vor ungefähr 15 Jahren entwickelt hat. Beim Raberskopf-Moor wurde das bereits bestehende vegetationsökologische Monitoring in 16 Dauerflächen wiederholt und zusätzlich wurden 2 neue angelegt. Entlang von Transekten wurden beim Brettersberg-Mittelleger-Moor 10 neue Dauerflächen angelegt, die den Startpunkt eines Monitorings darstellen. Des Weiteren wurde das Fotomonitoring in beiden Mooren wiederholt und Orthofotos der letzten Jahre verglichen.
Die Ergebnisse zeigen, dass in beiden Mooren typische Pflanzengesellschaften und Pflanzenarten vorkommen, von denen einige als gefährdet gelten. Beim Raberskopf-Moor, wo ein Vergleich mit Daten aus dem Jahr 2006 möglich war, hat sich die Deckung typischer Moorspezialisten bereits etwas erhöht. Dazu zählen beispielsweise Andromeda polifolia (Rosmarinheide) und Vaccinium oxycoccos (Moosbere). Störungszeiger wie Molinia caerulea (Blaues Pfeifengras) oder Nardus stricta (Borstgras) sind hingegen weniger geworden und auch visuell sind Verbesserungen, vor allem im Bereich der verschlossenen Gräben sichtbar.
Wichtig ist es vor allem, die Moore auch in Zukunft zu beobachten und zu kontrollieren, denn eine Renaturierung kann noch einige Zeit in Anspruch nehmen.Peatlands are unique ecosystems characterized by extreme conditions. They are considered acidic, wet, nutrient- and oxygen-poor habitats and only specially adapted animal and plant species can survive there. Due to the diversity of ecosystem services they provide, they are of great importance not only to nature but also to humans. Especially when their important function as carbon sinks in times of climate change is taken into account. Nevertheless, these ecosystems are being degraded all over the world and are therefore highly endangered, along with the species found there. However, efforts are being made to restore degraded peatlands and bring them back to their natural state.
This was also done in 2005 in several bogs of the Karwendel Nature Park in Tyrol. Bog areas were fenced off to prevent grazing and drainage ditches were closed with the help of numerous wooden dams to allow rewetting. Two of these bogs, Raberskopf Bog and Brettersberg-Mittelleger Bog, were studied in the course of this work. The objective was to find out how the vegetation in the bogs has developed since the renaturation measures were taken about 15 years ago. At the Raberskopf-Moor the already existing ecological vegetation monitoring was repeated in 16 permanent plots and additionally 2 new plots were established. By means of the transect method, 10 new permanent plots were established at the Brettersberg-Mittelleger Moor, which represent the starting point of monitoring. Furthermore, photo monitoring was repeated in both bogs and orthophotos of the last years were compared.
The results show that typical plant communities and plant species occur in both bogs, some of which are considered endangered. At Raberskopf Bog, where a comparison with data from 2006 was possible, the cover of typical bog specialists has already increased somewhat. These include, for example, Andromeda polifolia (bog-rosemary) and Vaccinium oxycoccos (marshberry). On the other hand, disturbance indicators such as Molinia caerulea (purple moor-grass) or Nardus stricta (matgrass) have become fewer. Improvements are also visible visually, especially in the area of closed ditches.
It is especially important to observe and control the bogs in the future, because a renaturation can still take some time.eingereicht von: Magdalena Haidegger, BScAbstract in englischer SpracheMasterarbeit Universität Innsbruck 202
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Vegetation development and impact of renaturation measures in two bogs in the Karwendel Nature Park
No full textMoore sind einzigartige Ökosysteme, die von extremen Bedingungen geprägt sind. Sie gelten als saure, nasse, nährstoff- und sauerstoffarme Habitate und nur speziell angepasste Tier- und Pflanzenarten können dort überleben. Durch die Vielfalt an Ökosystem-Dienstleistungen sind sie nicht nur für die Natur, sondern auch für den Menschen von großer Bedeutung. Vor allem, wenn man ihre wichtige Funktion als Kohlenstoffsenken in Zeiten des Klimawandels heranzieht. Dennoch werden diese Ökosysteme weltweit degradiert und sind somit, samt den dort vorkommenden Arten, stark gefährdet. Es gibt jedoch Bestrebungen Moore zu renaturieren und sie wieder zurück zu ihrem natürlichen Zustand zu führen.
Das geschah im Jahr 2005 auch in mehreren Mooren des Naturpark Karwendel in Tirol. Moorflächen wurden eingezäunt, um eine Beweidung zu vermeiden und Entwässerungsgräben wurden mit Hilfe von zahlreichen Holzdämmen verschlossen, um die Wiedervernässung zu ermöglichen. Zwei dieser Moore, das Raberskopf-Moor und das Brettersberg-Mittelleger-Moor, wurden im Zuge dieser Arbeit untersucht. Die Zielsetzung war es, herauszufinden wie sich die Vegetation in diesen Mooren seit den Renaturierungsmaßnahmen vor ungefähr 15 Jahren entwickelt hat. Beim Raberskopf-Moor wurde das bereits bestehende vegetationsökologische Monitoring in 16 Dauerflächen wiederholt und zusätzlich wurden 2 neue angelegt. Entlang von Transekten wurden beim Brettersberg-Mittelleger-Moor 10 neue Dauerflächen angelegt, die den Startpunkt eines Monitorings darstellen. Des Weiteren wurde das Fotomonitoring in beiden Mooren wiederholt und Orthofotos der letzten Jahre verglichen.
Die Ergebnisse zeigen, dass in beiden Mooren typische Pflanzengesellschaften und Pflanzenarten vorkommen, von denen einige als gefährdet gelten. Beim Raberskopf-Moor, wo ein Vergleich mit Daten aus dem Jahr 2006 möglich war, hat sich die Deckung typischer Moorspezialisten bereits etwas erhöht. Dazu zählen beispielsweise Andromeda polifolia (Rosmarinheide) und Vaccinium oxycoccos (Moosbere). Störungszeiger wie Molinia caerulea (Blaues Pfeifengras) oder Nardus stricta (Borstgras) sind hingegen weniger geworden und auch visuell sind Verbesserungen, vor allem im Bereich der verschlossenen Gräben sichtbar.
Wichtig ist es vor allem, die Moore auch in Zukunft zu beobachten und zu kontrollieren, denn eine Renaturierung kann noch einige Zeit in Anspruch nehmen.Peatlands are unique ecosystems characterized by extreme conditions. They are considered acidic, wet, nutrient- and oxygen-poor habitats and only specially adapted animal and plant species can survive there. Due to the diversity of ecosystem services they provide, they are of great importance not only to nature but also to humans. Especially when their important function as carbon sinks in times of climate change is taken into account. Nevertheless, these ecosystems are being degraded all over the world and are therefore highly endangered, along with the species found there. However, efforts are being made to restore degraded peatlands and bring them back to their natural state.
This was also done in 2005 in several bogs of the Karwendel Nature Park in Tyrol. Bog areas were fenced off to prevent grazing and drainage ditches were closed with the help of numerous wooden dams to allow rewetting. Two of these bogs, Raberskopf Bog and Brettersberg-Mittelleger Bog, were studied in the course of this work. The objective was to find out how the vegetation in the bogs has developed since the renaturation measures were taken about 15 years ago. At the Raberskopf-Moor the already existing ecological vegetation monitoring was repeated in 16 permanent plots and additionally 2 new plots were established. By means of the transect method, 10 new permanent plots were established at the Brettersberg-Mittelleger Moor, which represent the starting point of monitoring. Furthermore, photo monitoring was repeated in both bogs and orthophotos of the last years were compared.
The results show that typical plant communities and plant species occur in both bogs, some of which are considered endangered. At Raberskopf Bog, where a comparison with data from 2006 was possible, the cover of typical bog specialists has already increased somewhat. These include, for example, Andromeda polifolia (bog-rosemary) and Vaccinium oxycoccos (marshberry). On the other hand, disturbance indicators such as Molinia caerulea (purple moor-grass) or Nardus stricta (matgrass) have become fewer. Improvements are also visible visually, especially in the area of closed ditches.
It is especially important to observe and control the bogs in the future, because a renaturation can still take some time.eingereicht von: Magdalena Haidegger, BScAbstract in englischer SpracheMasterarbeit Universität Innsbruck 202
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
