1,720,961 research outputs found
Determinants of Agroforestry Practicing at Fogera District, Northwestern Ethiopia
No full textIn Fogera district of northwestern Ethiopia, agroforestry land use systems are considered as sustainable and productive approaches as they have multiple benefits. Agroforestry systems in Fogera were developed by the farmers themselves over time; however, their distribution had remained to certain localities. Thus, this research answers why some farmers practice it while others not. To address this general question a study was conducted with the objectives to assess the major determinant factors affecting farmers’ practicing of agroforestry and to identify dominant traditional agroforestry practices. Data collection was based on a household survey (N=150), focus group discussion (FGD) and field observations. Household and farm characteristics were analyzed using descriptive statistics. T-test and ᵡ2 were used to compare practitioners and non practitioners for continuous and discrete variables, respectively. The econometric analysis using logit model was also done to identify key factors that influence practicing of agroforestry. Fifteen variables were included in the model out of which five of them were found to affect agroforestry practicing significantly. Age (-) and attitude (+) at 1% significance level; land tenure security (+), erosion (+) and training in natural resource management and/ or agriculture (+) at 5% significance level affected practicing significantly. The dominant agroforestry practices identified in the district were farm boundary, farm woodlot and homestead tree integration mainly with Eucalyptus camaldulensis. Land shortage and free grazing were also found widely to hinder agroforestry practicing. Therefore, due emphasis should be given to capitalize on promising factors and also in addressing the obstacles before expanding the experience of practitioners and introducing new improved agroforestry technologies to other areas in Ethiopia
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
Apple based agroforestry in Dendi Woreda, Oromiya Region: Income contribution and determinants for adoption
Full text linkA study was conducted to evaluate and compare households’ income from apple based agroforestry system and identify factors that influence its adoption by smallholder farmers in Dendi Woreda, Oromia region. Two kebeles’ were purposefully selected and from which 250 households were randomly taken, where 33 were adopters of the technology and the remaining 217 were non-adopters. To obtain the necessary information, both primary and secondary data were collected and focus group iscussion was conducted. The result revealed that farmers predominantly carry out various livelihood activities such as production of grain crops, livestock, vegetables, and apple fruit. In agri-horticulture agroforestry approach apple trees were integrated with vegetables at homesteads by adopters. The mean gross income of adopters from apple fruit was 58,234.85ETB ha-1 yr-1. Adopters’ mean annual gross income from vegetable + apple fruit was 344,602.3ETB ha-1 yr-1 and mean annual gross income of non-adopters from vegetable was 219,932.9ETB ha-1 yr-1. The income obtained from apple contributed 17 per cent to the income of the agri-horticulture system. Non-adopters annual net income from vegetables was 191,645.13ETB ha-1yr-1 and adopters’ annual net income from vegetable + apple was 312,378.79ETB ha-1 yr-1. The agri-horticulture system contributed 1.63 times higher net revenue for adopters in addition to its nutritional value. However, adoption of apple based agroforestry system was significantly influenced by different factor such as age (+), formal education levels (+), livestock holding (+), distance from market to home (+), sex (-) and total land holding (-). In order to maximize the benefits from the system land users are advised to follow integration of apple fruit trees in their food production activities incorporating their own farm resources to minimize input costs. Policy makers are also expected to advocate the systems performance in the study area and beyond.Keywords: Agri-horticulture system; Apple tree adoption; Household incom
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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