1,721,139 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
Adolescent anaemia status and non-haem iron source food use at the Beddawi refugee camp in North Lebanon : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Nutritional Sciences at Massey University, Manawatū, New Zealand
Full text linkPalestinian refugees at long-term Lebanese camps are at increased anaemia risk. Adolescent Palestinians at these camps, with their disproportionately high poverty burdens, are at particular risk, though little-to-no data are available to describe this. Anaemia in Lebanon has been attributed, largely, to inadequate intake of bioavailable iron. This may occur when a population is reliant on non-haem iron food sources to meet nutrient needs, as is often the case in long-term camp settings. No studies are currently available that describe adolescent Palestinian diets at Lebanese camps. There is also a dearth of studies exploring food preparation practices that may be harnessed to optimise iron bioavailability from consumed foods at these camps.
This study used an embedded mixed-methods design to evaluate anaemia prevalence, iron source food consumption, and micronutrient dietary diversity (DDS-M) for a group of adolescent Palestinians (n = 66) at the Beddawi refugee camp in North Lebanon. The study also explored household plant-food use and preparation, with particular reference to dark leafy greens, and plant-food valuation with household food preparers (FPs).
Anaemia prevalence for adolescents was 29%. Median DDS-M was 4 [IQR = 1.63, range = 2-6]. Grain-based foods were consumed by the largest proportion of adolescents (100%), followed by milk source foods (84.8%) and fruits (59.1%). Jute mallow, chicory, parsley and spinach were the dark leafy greens used by the largest proportions of households (> 80%). Household use of a subset of dark leafy greens was positively associated with adolescent DDS-M (rho = 0.31, S = 14303, p-value = 0.03). All FPs reported plant food valuation; however, FPs in households with non-anaemic adolescents related plant food valuation responses with more detailed nutrient and health rationales than FPs in households with anaemic adolescents. Lemon juice, capsicum and chilli were among foods commonly reported to be co-consumed with plant meals described by FPs. Soaking pulses ahead of use was also reported.
Anaemia is a moderate public health concern for this group of adolescents, and the micronutrient content of their diets is insufficiently diverse. Increased consumption of accessible dark leafy greens and co-consumption of reported vitamin C-rich foods with non-haem iron meals, in combination with extending pulse-soaking practices to additional grains may contribute to optimising dietary and biochemical iron status for these adolescents
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
An investigation into the interaction of the microbiome-gut-brain axis with stress : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Nutritional Science at Massey University, Manawatū, New Zealand
Full text linkThis thesis aimed to investigate whether changes in the gut microbiota and associated biomarkers were associated with stress-induced anxiety-like and depressive-like behaviour.
Two studies used the unpredictable chronic mild stress (UCMS) over 4 or 6 weeks (vs no UCMS, control) in Sprague-Dawley rats. Depressive-like behaviour was measured in female rats using the sucrose preference test, and the Porsolt swim test. Anxiety-like behaviour was measured with the light-dark box test. Faecal corticosterone, caecal microbiota (composition and organic acids), serum gut permeability (lipopolysaccharide-binding protein, LBP) and plasma inflammation (12 cytokines) markers were measured.
Atypical behaviours were observed in female rats following UCMS and no depressive-like behaviours were observed. The circulating concentration of cytokines, but not plasma LBP or caecal organic acids, was higher in UCMS-exposed female rats. Relative abundance of taxa from the Clostridiales order and Desulfovibrionaceae family correlated with anxiety-like behaviours and plasma cytokine concentrations, regardless of UCMS.
Studies of these atypical behaviours in female rats confirmed expected patterns of sucrose intake in the sucrose preference test and no decreased depressive-like behaviours in the Porsolt swim test with antidepressant citalopram and imipramine drugs. A further study also showed differences in baseline behaviour in male versus female rats, leading the second UCMS study to be in male rats.
Increased faecal corticosterone and anxiety-like behaviours were observed in male UCMS-exposed and control rats at week 4 of UCMS compared to baseline. Plasma cytokine concentrations were higher in the UCMS group but higher faecal corticosterone concentrations and anxiety behaviours in control rats suggest that they were more stressed than treated rats. Caecal neurotransmitter concentrations did not differ between treatments nor correlate with serum neurotransmitter, cytokines or LBP concentrations or behaviour.
The findings showed an association between the gut microbiota and anxiety-like behaviours, which was not stress dependent. No measured biomarkers explained the observed anxiety-like behaviours. Caecal digesta neurotransmitter profiles were dissimilar to serum profiles indicating it may not be an important influence on serum levels. Despite the atypical behavioural results following the interventions, the results still provided useful and unique information which contributes to the body of Microbiome Gut Brain Axis research
Assessing the sustainability of indigenous food systems in Pacific Small Island Developing States (PSIDS) : a dissertation presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Public Health Nutrition & Food Systems at Massey University, Wellington, New Zealand
Full text linkChapter 2 is reproduced with the publisher's permission. This article was published in Vogliano, C., Murray, L., Coad, J., Wham, C., Maelaua, J., Kafa, R., & Burlingame, B., Progress towards SDG 2: Zero hunger in Melanesia – A state of data scoping review, Global Food Security, 29, 100519, © Elsevier 2021.
Chapter 3 is reproduced with permission. This article was published as Chapter 4, From the ocean to the mountains: Storytelling in the Pacific Islands, in FAO and Alliance of Bioversity International and CIAT, Indigenous Peoples’ food systems: Insights on sustainability and resilience from the front line of climate change, Rome, 2021, http://www.fao.org/documents/card/en/c/cb5131en.
Chapters 4 & 5 are re-used under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license, https://creativecommons.org/licenses/by/4.0/.
Appendices A & H are re-used under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO (CC BY-NC-ND 3.0 IGO) license, https://creativecommons.org/licenses/by-nc-nd/3.0/igo/.
Appendix B was removed for copyright reasons.
Appendix C is re-used under the terms of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).Indigenous Peoples living in Pacific Small Island Developing States (PSIDS) who have traditionally relied on locally grown, biodiverse foods for their primary source of nutrition are now seeing the adverse impacts of changing diets and climate change. Shifts away from traditional diets towards modern, imported and ultra-processed foods are likely giving rise to noncommunicable diseases such as cardiovascular disease and Type 2 Diabetes Mellitus, which are now the leading causes of mortality. Climate change is magnifying health inequities and challenging food and nutrition security through heavier rains, longer droughts, and rising sea levels. COVID-19 has highlighted additional challenges for those living in PSIDS, exposing vulnerabilities across global food systems. Using Solomon Islands as a proxy for the broader Pacific, this thesis aims to assess PSIDS food system sustainability, including diet quality and diversity, as well as perceived food system transitions. Findings from this thesis can help strengthen discourse around promoting sustainable and resilient food systems and help achieve food and nutrition security targets set by the United Nations Sustainable Development Goals (SDGs)
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