305,272 research outputs found
Editorial: Options for transition of land towards intensive and sustainable agricultural systems, volume II
No full textAmong the main challenges for the 21st century, the need to feed a global population expected to grow over nine billion by 2050 is of utmost importance. At the same time, the role of agriculture as a source of bioenergy and renewable raw material poses new challenges to the limited croplands, available. Furthermore, a change in paradigm is needed since the increase of food and biomass production must be obtained with a limited environmental impact, by protecting natural resources such as soil and water, safeguarding biodiversity and mitigating the climate change (FAO, 2023). This Research Topic gathers five contributions highlighting novel strategies and genetic materials to improve agriculture productivity on a sustainable basis. The approaches include Organic Farming, designed to produce high-quality food by keeping at the minimum inputs of resources such as water, energy, fertilizers and pesticides. This is obtained by using fertilizers of organic origin such as animal Manure and by exploiting Crop Rotation to regenerate soil nutrients and microbial diversity (Schröder et al., 2019). Moreover, Artificial ecological corridors, proved to restore ecological environment (Wei et al., 2023), are taken into considerations to understand their long-term impact on restoring soil properties and functions. Finally, the increase of agriculture productivity also requires Novel breeding techniques and genetic materials enabling better adaptation of crops to climate change (Anand et al., 2023)
Predicting the soil organic carbon by recent machine learning algorithms
No full textIn this paper, we focus on the Soil Organic Carbon (SOC) prediction, to discuss a comparative analysis between two recently proposed techniques, namely the Adaptive Networkbased Fuzzy Inference System (ANFIS) with fractional Tikhonov regularization and the Extreme Learning Machine (ELM) with the same kind of regularization. Three groups of experiments were performed using some publicly available datasets, in particular from Estonia. The results showed the good accuracy of the ANFIS-based approach
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Data-driven approaches for sustainable agri-food: coping with sustainability and interpretability
No full textImplementation of media governance : a liberal approach in the context of a small market
No full textThis thesis analyses the implementation mechanisms of media policy in Estonia.
The main research problem gradually evolved during the author’s participation
in several international media policy research groups and reporting.
Compared to many other Central and Eastern European countries, media
freedom in Estonia is rigidly upheld, the principle of net-neutrality has never
been in doubt and public access to information is not restrained. Still, the research
done has exhibited a decline in both the number of journalists and their
autonomy. On these contradictions, identifying the actors in media, political
and public domains enables the study to ask about the activity of every actor
and the values they advocate.
The empirical research has been published in nine works (seven articles
and two addenda) of which three focus on journalism and journalists, five on
various regulation systems and one specifically with the cultural development
of one media channel – radio.
The thesis’ cover text provides the empirical research outcome with a
frame. The author connects the values for media policy – freedom, autonomy,
diversity and pluralism – and the applied analysis of media policy with the ‘actor-
approach’.
Analysis of the results of the empirical research indicate that the decline in
journalists’ autonomy derives from business profit opportunities, because Estonia
does not have a strong union for journalists and the professional community
shows little intent in defending their values.
Innovatively, this thesis suggests a two-dimensional assessment model for
media governance. This model offers the means to link the legislative framework
to monitoring the activities of various actors. This kind of monitoring is
relevant to account for contextual changes over time, which impact on particular
actors during media governance planning. Also the changes in the context of
international regulation would be accounted for under this monitoring.unknown accessibilityei tietoa saavutettavuudest
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis 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
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